16d49e1aeSJan Lentfer /*
23ff40c12SJohn Marino * SSL/TLS interface functions for OpenSSL
3*a1157835SDaniel Fojt * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
46d49e1aeSJan Lentfer *
53ff40c12SJohn Marino * This software may be distributed under the terms of the BSD license.
63ff40c12SJohn Marino * See README for more details.
76d49e1aeSJan Lentfer */
86d49e1aeSJan Lentfer
96d49e1aeSJan Lentfer #include "includes.h"
106d49e1aeSJan Lentfer
116d49e1aeSJan Lentfer #ifndef CONFIG_SMARTCARD
126d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
133ff40c12SJohn Marino #ifndef ANDROID
146d49e1aeSJan Lentfer #define OPENSSL_NO_ENGINE
156d49e1aeSJan Lentfer #endif
166d49e1aeSJan Lentfer #endif
173ff40c12SJohn Marino #endif
186d49e1aeSJan Lentfer
196d49e1aeSJan Lentfer #include <openssl/ssl.h>
206d49e1aeSJan Lentfer #include <openssl/err.h>
21*a1157835SDaniel Fojt #include <openssl/opensslv.h>
226d49e1aeSJan Lentfer #include <openssl/pkcs12.h>
236d49e1aeSJan Lentfer #include <openssl/x509v3.h>
246d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
256d49e1aeSJan Lentfer #include <openssl/engine.h>
266d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
27*a1157835SDaniel Fojt #ifndef OPENSSL_NO_DSA
28*a1157835SDaniel Fojt #include <openssl/dsa.h>
29*a1157835SDaniel Fojt #endif
30*a1157835SDaniel Fojt #ifndef OPENSSL_NO_DH
31*a1157835SDaniel Fojt #include <openssl/dh.h>
32*a1157835SDaniel Fojt #endif
336d49e1aeSJan Lentfer
346d49e1aeSJan Lentfer #include "common.h"
353ff40c12SJohn Marino #include "crypto.h"
36*a1157835SDaniel Fojt #include "sha1.h"
37*a1157835SDaniel Fojt #include "sha256.h"
386d49e1aeSJan Lentfer #include "tls.h"
39*a1157835SDaniel Fojt #include "tls_openssl.h"
406d49e1aeSJan Lentfer
41*a1157835SDaniel Fojt #if !defined(CONFIG_FIPS) && \
42*a1157835SDaniel Fojt (defined(EAP_FAST) || defined(EAP_FAST_DYNAMIC) || \
43*a1157835SDaniel Fojt defined(EAP_SERVER_FAST))
44*a1157835SDaniel Fojt #define OPENSSL_NEED_EAP_FAST_PRF
45*a1157835SDaniel Fojt #endif
46*a1157835SDaniel Fojt
47*a1157835SDaniel Fojt #if defined(EAP_FAST) || defined(EAP_FAST_DYNAMIC) || \
48*a1157835SDaniel Fojt defined(EAP_SERVER_FAST) || defined(EAP_TEAP) || \
49*a1157835SDaniel Fojt defined(EAP_SERVER_TEAP)
50*a1157835SDaniel Fojt #define EAP_FAST_OR_TEAP
51*a1157835SDaniel Fojt #endif
52*a1157835SDaniel Fojt
53*a1157835SDaniel Fojt
54*a1157835SDaniel Fojt #if defined(OPENSSL_IS_BORINGSSL)
55*a1157835SDaniel Fojt /* stack_index_t is the return type of OpenSSL's sk_XXX_num() functions. */
56*a1157835SDaniel Fojt typedef size_t stack_index_t;
576d49e1aeSJan Lentfer #else
58*a1157835SDaniel Fojt typedef int stack_index_t;
596d49e1aeSJan Lentfer #endif
606d49e1aeSJan Lentfer
613ff40c12SJohn Marino #ifdef SSL_set_tlsext_status_type
623ff40c12SJohn Marino #ifndef OPENSSL_NO_TLSEXT
633ff40c12SJohn Marino #define HAVE_OCSP
643ff40c12SJohn Marino #include <openssl/ocsp.h>
653ff40c12SJohn Marino #endif /* OPENSSL_NO_TLSEXT */
663ff40c12SJohn Marino #endif /* SSL_set_tlsext_status_type */
673ff40c12SJohn Marino
68*a1157835SDaniel Fojt #if (OPENSSL_VERSION_NUMBER < 0x10100000L || \
69*a1157835SDaniel Fojt (defined(LIBRESSL_VERSION_NUMBER) && \
70*a1157835SDaniel Fojt LIBRESSL_VERSION_NUMBER < 0x20700000L)) && \
71*a1157835SDaniel Fojt !defined(BORINGSSL_API_VERSION)
72*a1157835SDaniel Fojt /*
73*a1157835SDaniel Fojt * SSL_get_client_random() and SSL_get_server_random() were added in OpenSSL
74*a1157835SDaniel Fojt * 1.1.0 and newer BoringSSL revisions. Provide compatibility wrappers for
75*a1157835SDaniel Fojt * older versions.
76*a1157835SDaniel Fojt */
77*a1157835SDaniel Fojt
SSL_get_client_random(const SSL * ssl,unsigned char * out,size_t outlen)78*a1157835SDaniel Fojt static size_t SSL_get_client_random(const SSL *ssl, unsigned char *out,
79*a1157835SDaniel Fojt size_t outlen)
80*a1157835SDaniel Fojt {
81*a1157835SDaniel Fojt if (!ssl->s3 || outlen < SSL3_RANDOM_SIZE)
82*a1157835SDaniel Fojt return 0;
83*a1157835SDaniel Fojt os_memcpy(out, ssl->s3->client_random, SSL3_RANDOM_SIZE);
84*a1157835SDaniel Fojt return SSL3_RANDOM_SIZE;
85*a1157835SDaniel Fojt }
86*a1157835SDaniel Fojt
87*a1157835SDaniel Fojt
SSL_get_server_random(const SSL * ssl,unsigned char * out,size_t outlen)88*a1157835SDaniel Fojt static size_t SSL_get_server_random(const SSL *ssl, unsigned char *out,
89*a1157835SDaniel Fojt size_t outlen)
90*a1157835SDaniel Fojt {
91*a1157835SDaniel Fojt if (!ssl->s3 || outlen < SSL3_RANDOM_SIZE)
92*a1157835SDaniel Fojt return 0;
93*a1157835SDaniel Fojt os_memcpy(out, ssl->s3->server_random, SSL3_RANDOM_SIZE);
94*a1157835SDaniel Fojt return SSL3_RANDOM_SIZE;
95*a1157835SDaniel Fojt }
96*a1157835SDaniel Fojt
97*a1157835SDaniel Fojt
98*a1157835SDaniel Fojt #ifdef OPENSSL_NEED_EAP_FAST_PRF
SSL_SESSION_get_master_key(const SSL_SESSION * session,unsigned char * out,size_t outlen)99*a1157835SDaniel Fojt static size_t SSL_SESSION_get_master_key(const SSL_SESSION *session,
100*a1157835SDaniel Fojt unsigned char *out, size_t outlen)
101*a1157835SDaniel Fojt {
102*a1157835SDaniel Fojt if (!session || session->master_key_length < 0 ||
103*a1157835SDaniel Fojt (size_t) session->master_key_length > outlen)
104*a1157835SDaniel Fojt return 0;
105*a1157835SDaniel Fojt if ((size_t) session->master_key_length < outlen)
106*a1157835SDaniel Fojt outlen = session->master_key_length;
107*a1157835SDaniel Fojt os_memcpy(out, session->master_key, outlen);
108*a1157835SDaniel Fojt return outlen;
109*a1157835SDaniel Fojt }
110*a1157835SDaniel Fojt #endif /* OPENSSL_NEED_EAP_FAST_PRF */
111*a1157835SDaniel Fojt
112*a1157835SDaniel Fojt #endif
113*a1157835SDaniel Fojt
114*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L || \
115*a1157835SDaniel Fojt (defined(LIBRESSL_VERSION_NUMBER) && \
116*a1157835SDaniel Fojt LIBRESSL_VERSION_NUMBER < 0x20700000L)
117*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
RSA_bits(const RSA * r)118*a1157835SDaniel Fojt static int RSA_bits(const RSA *r)
119*a1157835SDaniel Fojt {
120*a1157835SDaniel Fojt return BN_num_bits(r->n);
121*a1157835SDaniel Fojt }
122*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
123*a1157835SDaniel Fojt
124*a1157835SDaniel Fojt
ASN1_STRING_get0_data(const ASN1_STRING * x)125*a1157835SDaniel Fojt static const unsigned char * ASN1_STRING_get0_data(const ASN1_STRING *x)
126*a1157835SDaniel Fojt {
127*a1157835SDaniel Fojt return ASN1_STRING_data((ASN1_STRING *) x);
128*a1157835SDaniel Fojt }
129*a1157835SDaniel Fojt #endif
130*a1157835SDaniel Fojt
1313ff40c12SJohn Marino #ifdef ANDROID
1323ff40c12SJohn Marino #include <openssl/pem.h>
1333ff40c12SJohn Marino #include <keystore/keystore_get.h>
1343ff40c12SJohn Marino
BIO_from_keystore(const char * key)1353ff40c12SJohn Marino static BIO * BIO_from_keystore(const char *key)
1363ff40c12SJohn Marino {
1373ff40c12SJohn Marino BIO *bio = NULL;
1383ff40c12SJohn Marino uint8_t *value = NULL;
1393ff40c12SJohn Marino int length = keystore_get(key, strlen(key), &value);
1403ff40c12SJohn Marino if (length != -1 && (bio = BIO_new(BIO_s_mem())) != NULL)
1413ff40c12SJohn Marino BIO_write(bio, value, length);
1423ff40c12SJohn Marino free(value);
1433ff40c12SJohn Marino return bio;
1443ff40c12SJohn Marino }
145*a1157835SDaniel Fojt
146*a1157835SDaniel Fojt
tls_add_ca_from_keystore(X509_STORE * ctx,const char * key_alias)147*a1157835SDaniel Fojt static int tls_add_ca_from_keystore(X509_STORE *ctx, const char *key_alias)
148*a1157835SDaniel Fojt {
149*a1157835SDaniel Fojt BIO *bio = BIO_from_keystore(key_alias);
150*a1157835SDaniel Fojt STACK_OF(X509_INFO) *stack = NULL;
151*a1157835SDaniel Fojt stack_index_t i;
152*a1157835SDaniel Fojt
153*a1157835SDaniel Fojt if (bio) {
154*a1157835SDaniel Fojt stack = PEM_X509_INFO_read_bio(bio, NULL, NULL, NULL);
155*a1157835SDaniel Fojt BIO_free(bio);
156*a1157835SDaniel Fojt }
157*a1157835SDaniel Fojt
158*a1157835SDaniel Fojt if (!stack) {
159*a1157835SDaniel Fojt wpa_printf(MSG_WARNING, "TLS: Failed to parse certificate: %s",
160*a1157835SDaniel Fojt key_alias);
161*a1157835SDaniel Fojt return -1;
162*a1157835SDaniel Fojt }
163*a1157835SDaniel Fojt
164*a1157835SDaniel Fojt for (i = 0; i < sk_X509_INFO_num(stack); ++i) {
165*a1157835SDaniel Fojt X509_INFO *info = sk_X509_INFO_value(stack, i);
166*a1157835SDaniel Fojt
167*a1157835SDaniel Fojt if (info->x509)
168*a1157835SDaniel Fojt X509_STORE_add_cert(ctx, info->x509);
169*a1157835SDaniel Fojt if (info->crl)
170*a1157835SDaniel Fojt X509_STORE_add_crl(ctx, info->crl);
171*a1157835SDaniel Fojt }
172*a1157835SDaniel Fojt
173*a1157835SDaniel Fojt sk_X509_INFO_pop_free(stack, X509_INFO_free);
174*a1157835SDaniel Fojt
175*a1157835SDaniel Fojt return 0;
176*a1157835SDaniel Fojt }
177*a1157835SDaniel Fojt
178*a1157835SDaniel Fojt
tls_add_ca_from_keystore_encoded(X509_STORE * ctx,const char * encoded_key_alias)179*a1157835SDaniel Fojt static int tls_add_ca_from_keystore_encoded(X509_STORE *ctx,
180*a1157835SDaniel Fojt const char *encoded_key_alias)
181*a1157835SDaniel Fojt {
182*a1157835SDaniel Fojt int rc = -1;
183*a1157835SDaniel Fojt int len = os_strlen(encoded_key_alias);
184*a1157835SDaniel Fojt unsigned char *decoded_alias;
185*a1157835SDaniel Fojt
186*a1157835SDaniel Fojt if (len & 1) {
187*a1157835SDaniel Fojt wpa_printf(MSG_WARNING, "Invalid hex-encoded alias: %s",
188*a1157835SDaniel Fojt encoded_key_alias);
189*a1157835SDaniel Fojt return rc;
190*a1157835SDaniel Fojt }
191*a1157835SDaniel Fojt
192*a1157835SDaniel Fojt decoded_alias = os_malloc(len / 2 + 1);
193*a1157835SDaniel Fojt if (decoded_alias) {
194*a1157835SDaniel Fojt if (!hexstr2bin(encoded_key_alias, decoded_alias, len / 2)) {
195*a1157835SDaniel Fojt decoded_alias[len / 2] = '\0';
196*a1157835SDaniel Fojt rc = tls_add_ca_from_keystore(
197*a1157835SDaniel Fojt ctx, (const char *) decoded_alias);
198*a1157835SDaniel Fojt }
199*a1157835SDaniel Fojt os_free(decoded_alias);
200*a1157835SDaniel Fojt }
201*a1157835SDaniel Fojt
202*a1157835SDaniel Fojt return rc;
203*a1157835SDaniel Fojt }
204*a1157835SDaniel Fojt
2053ff40c12SJohn Marino #endif /* ANDROID */
2063ff40c12SJohn Marino
2076d49e1aeSJan Lentfer static int tls_openssl_ref_count = 0;
208*a1157835SDaniel Fojt static int tls_ex_idx_session = -1;
2096d49e1aeSJan Lentfer
2103ff40c12SJohn Marino struct tls_context {
2113ff40c12SJohn Marino void (*event_cb)(void *ctx, enum tls_event ev,
2123ff40c12SJohn Marino union tls_event_data *data);
2133ff40c12SJohn Marino void *cb_ctx;
2143ff40c12SJohn Marino int cert_in_cb;
2153ff40c12SJohn Marino char *ocsp_stapling_response;
2163ff40c12SJohn Marino };
2173ff40c12SJohn Marino
2183ff40c12SJohn Marino static struct tls_context *tls_global = NULL;
2193ff40c12SJohn Marino
2203ff40c12SJohn Marino
221*a1157835SDaniel Fojt struct tls_data {
222*a1157835SDaniel Fojt SSL_CTX *ssl;
223*a1157835SDaniel Fojt unsigned int tls_session_lifetime;
224*a1157835SDaniel Fojt int check_crl;
225*a1157835SDaniel Fojt int check_crl_strict;
226*a1157835SDaniel Fojt char *ca_cert;
227*a1157835SDaniel Fojt unsigned int crl_reload_interval;
228*a1157835SDaniel Fojt struct os_reltime crl_last_reload;
229*a1157835SDaniel Fojt char *check_cert_subject;
230*a1157835SDaniel Fojt };
231*a1157835SDaniel Fojt
2326d49e1aeSJan Lentfer struct tls_connection {
2333ff40c12SJohn Marino struct tls_context *context;
234*a1157835SDaniel Fojt struct tls_data *data;
235*a1157835SDaniel Fojt SSL_CTX *ssl_ctx;
2366d49e1aeSJan Lentfer SSL *ssl;
2376d49e1aeSJan Lentfer BIO *ssl_in, *ssl_out;
238*a1157835SDaniel Fojt #if defined(ANDROID) || !defined(OPENSSL_NO_ENGINE)
2396d49e1aeSJan Lentfer ENGINE *engine; /* functional reference to the engine */
2406d49e1aeSJan Lentfer EVP_PKEY *private_key; /* the private key if using engine */
2416d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
242*a1157835SDaniel Fojt char *subject_match, *altsubject_match, *suffix_match, *domain_match;
243*a1157835SDaniel Fojt char *check_cert_subject;
2446d49e1aeSJan Lentfer int read_alerts, write_alerts, failed;
2456d49e1aeSJan Lentfer
2466d49e1aeSJan Lentfer tls_session_ticket_cb session_ticket_cb;
2476d49e1aeSJan Lentfer void *session_ticket_cb_ctx;
2486d49e1aeSJan Lentfer
2496d49e1aeSJan Lentfer /* SessionTicket received from OpenSSL hello_extension_cb (server) */
2506d49e1aeSJan Lentfer u8 *session_ticket;
2516d49e1aeSJan Lentfer size_t session_ticket_len;
2523ff40c12SJohn Marino
2533ff40c12SJohn Marino unsigned int ca_cert_verify:1;
2543ff40c12SJohn Marino unsigned int cert_probe:1;
2553ff40c12SJohn Marino unsigned int server_cert_only:1;
256*a1157835SDaniel Fojt unsigned int invalid_hb_used:1;
257*a1157835SDaniel Fojt unsigned int success_data:1;
258*a1157835SDaniel Fojt unsigned int client_hello_generated:1;
2593ff40c12SJohn Marino unsigned int server:1;
2603ff40c12SJohn Marino
2613ff40c12SJohn Marino u8 srv_cert_hash[32];
2623ff40c12SJohn Marino
2633ff40c12SJohn Marino unsigned int flags;
2643ff40c12SJohn Marino
2653ff40c12SJohn Marino X509 *peer_cert;
2663ff40c12SJohn Marino X509 *peer_issuer;
2673ff40c12SJohn Marino X509 *peer_issuer_issuer;
268*a1157835SDaniel Fojt
269*a1157835SDaniel Fojt unsigned char client_random[SSL3_RANDOM_SIZE];
270*a1157835SDaniel Fojt unsigned char server_random[SSL3_RANDOM_SIZE];
271*a1157835SDaniel Fojt
272*a1157835SDaniel Fojt u16 cipher_suite;
273*a1157835SDaniel Fojt int server_dh_prime_len;
2746d49e1aeSJan Lentfer };
2756d49e1aeSJan Lentfer
2766d49e1aeSJan Lentfer
tls_context_new(const struct tls_config * conf)2773ff40c12SJohn Marino static struct tls_context * tls_context_new(const struct tls_config *conf)
2783ff40c12SJohn Marino {
2793ff40c12SJohn Marino struct tls_context *context = os_zalloc(sizeof(*context));
2803ff40c12SJohn Marino if (context == NULL)
2813ff40c12SJohn Marino return NULL;
2823ff40c12SJohn Marino if (conf) {
2833ff40c12SJohn Marino context->event_cb = conf->event_cb;
2843ff40c12SJohn Marino context->cb_ctx = conf->cb_ctx;
2853ff40c12SJohn Marino context->cert_in_cb = conf->cert_in_cb;
2863ff40c12SJohn Marino }
2873ff40c12SJohn Marino return context;
2883ff40c12SJohn Marino }
2893ff40c12SJohn Marino
2903ff40c12SJohn Marino
2916d49e1aeSJan Lentfer #ifdef CONFIG_NO_STDOUT_DEBUG
2926d49e1aeSJan Lentfer
_tls_show_errors(void)2936d49e1aeSJan Lentfer static void _tls_show_errors(void)
2946d49e1aeSJan Lentfer {
2956d49e1aeSJan Lentfer unsigned long err;
2966d49e1aeSJan Lentfer
2976d49e1aeSJan Lentfer while ((err = ERR_get_error())) {
2986d49e1aeSJan Lentfer /* Just ignore the errors, since stdout is disabled */
2996d49e1aeSJan Lentfer }
3006d49e1aeSJan Lentfer }
3016d49e1aeSJan Lentfer #define tls_show_errors(l, f, t) _tls_show_errors()
3026d49e1aeSJan Lentfer
3036d49e1aeSJan Lentfer #else /* CONFIG_NO_STDOUT_DEBUG */
3046d49e1aeSJan Lentfer
tls_show_errors(int level,const char * func,const char * txt)3056d49e1aeSJan Lentfer static void tls_show_errors(int level, const char *func, const char *txt)
3066d49e1aeSJan Lentfer {
3076d49e1aeSJan Lentfer unsigned long err;
3086d49e1aeSJan Lentfer
3096d49e1aeSJan Lentfer wpa_printf(level, "OpenSSL: %s - %s %s",
3106d49e1aeSJan Lentfer func, txt, ERR_error_string(ERR_get_error(), NULL));
3116d49e1aeSJan Lentfer
3126d49e1aeSJan Lentfer while ((err = ERR_get_error())) {
3136d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "OpenSSL: pending error: %s",
3146d49e1aeSJan Lentfer ERR_error_string(err, NULL));
3156d49e1aeSJan Lentfer }
3166d49e1aeSJan Lentfer }
3176d49e1aeSJan Lentfer
3186d49e1aeSJan Lentfer #endif /* CONFIG_NO_STDOUT_DEBUG */
3196d49e1aeSJan Lentfer
3206d49e1aeSJan Lentfer
tls_crl_cert_reload(const char * ca_cert,int check_crl)321*a1157835SDaniel Fojt static X509_STORE * tls_crl_cert_reload(const char *ca_cert, int check_crl)
322*a1157835SDaniel Fojt {
323*a1157835SDaniel Fojt int flags;
324*a1157835SDaniel Fojt X509_STORE *store;
325*a1157835SDaniel Fojt
326*a1157835SDaniel Fojt store = X509_STORE_new();
327*a1157835SDaniel Fojt if (!store) {
328*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
329*a1157835SDaniel Fojt "OpenSSL: %s - failed to allocate new certificate store",
330*a1157835SDaniel Fojt __func__);
331*a1157835SDaniel Fojt return NULL;
332*a1157835SDaniel Fojt }
333*a1157835SDaniel Fojt
334*a1157835SDaniel Fojt if (ca_cert && X509_STORE_load_locations(store, ca_cert, NULL) != 1) {
335*a1157835SDaniel Fojt tls_show_errors(MSG_WARNING, __func__,
336*a1157835SDaniel Fojt "Failed to load root certificates");
337*a1157835SDaniel Fojt X509_STORE_free(store);
338*a1157835SDaniel Fojt return NULL;
339*a1157835SDaniel Fojt }
340*a1157835SDaniel Fojt
341*a1157835SDaniel Fojt flags = check_crl ? X509_V_FLAG_CRL_CHECK : 0;
342*a1157835SDaniel Fojt if (check_crl == 2)
343*a1157835SDaniel Fojt flags |= X509_V_FLAG_CRL_CHECK_ALL;
344*a1157835SDaniel Fojt
345*a1157835SDaniel Fojt X509_STORE_set_flags(store, flags);
346*a1157835SDaniel Fojt
347*a1157835SDaniel Fojt return store;
348*a1157835SDaniel Fojt }
349*a1157835SDaniel Fojt
350*a1157835SDaniel Fojt
3516d49e1aeSJan Lentfer #ifdef CONFIG_NATIVE_WINDOWS
3526d49e1aeSJan Lentfer
3536d49e1aeSJan Lentfer /* Windows CryptoAPI and access to certificate stores */
3546d49e1aeSJan Lentfer #include <wincrypt.h>
3556d49e1aeSJan Lentfer
3566d49e1aeSJan Lentfer #ifdef __MINGW32_VERSION
3576d49e1aeSJan Lentfer /*
3586d49e1aeSJan Lentfer * MinGW does not yet include all the needed definitions for CryptoAPI, so
3596d49e1aeSJan Lentfer * define here whatever extra is needed.
3606d49e1aeSJan Lentfer */
3616d49e1aeSJan Lentfer #define CERT_SYSTEM_STORE_CURRENT_USER (1 << 16)
3626d49e1aeSJan Lentfer #define CERT_STORE_READONLY_FLAG 0x00008000
3636d49e1aeSJan Lentfer #define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
3646d49e1aeSJan Lentfer
3656d49e1aeSJan Lentfer #endif /* __MINGW32_VERSION */
3666d49e1aeSJan Lentfer
3676d49e1aeSJan Lentfer
3686d49e1aeSJan Lentfer struct cryptoapi_rsa_data {
3696d49e1aeSJan Lentfer const CERT_CONTEXT *cert;
3706d49e1aeSJan Lentfer HCRYPTPROV crypt_prov;
3716d49e1aeSJan Lentfer DWORD key_spec;
3726d49e1aeSJan Lentfer BOOL free_crypt_prov;
3736d49e1aeSJan Lentfer };
3746d49e1aeSJan Lentfer
3756d49e1aeSJan Lentfer
cryptoapi_error(const char * msg)3766d49e1aeSJan Lentfer static void cryptoapi_error(const char *msg)
3776d49e1aeSJan Lentfer {
3786d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "CryptoAPI: %s; err=%u",
3796d49e1aeSJan Lentfer msg, (unsigned int) GetLastError());
3806d49e1aeSJan Lentfer }
3816d49e1aeSJan Lentfer
3826d49e1aeSJan Lentfer
cryptoapi_rsa_pub_enc(int flen,const unsigned char * from,unsigned char * to,RSA * rsa,int padding)3836d49e1aeSJan Lentfer static int cryptoapi_rsa_pub_enc(int flen, const unsigned char *from,
3846d49e1aeSJan Lentfer unsigned char *to, RSA *rsa, int padding)
3856d49e1aeSJan Lentfer {
3866d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "%s - not implemented", __func__);
3876d49e1aeSJan Lentfer return 0;
3886d49e1aeSJan Lentfer }
3896d49e1aeSJan Lentfer
3906d49e1aeSJan Lentfer
cryptoapi_rsa_pub_dec(int flen,const unsigned char * from,unsigned char * to,RSA * rsa,int padding)3916d49e1aeSJan Lentfer static int cryptoapi_rsa_pub_dec(int flen, const unsigned char *from,
3926d49e1aeSJan Lentfer unsigned char *to, RSA *rsa, int padding)
3936d49e1aeSJan Lentfer {
3946d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "%s - not implemented", __func__);
3956d49e1aeSJan Lentfer return 0;
3966d49e1aeSJan Lentfer }
3976d49e1aeSJan Lentfer
3986d49e1aeSJan Lentfer
cryptoapi_rsa_priv_enc(int flen,const unsigned char * from,unsigned char * to,RSA * rsa,int padding)3996d49e1aeSJan Lentfer static int cryptoapi_rsa_priv_enc(int flen, const unsigned char *from,
4006d49e1aeSJan Lentfer unsigned char *to, RSA *rsa, int padding)
4016d49e1aeSJan Lentfer {
4026d49e1aeSJan Lentfer struct cryptoapi_rsa_data *priv =
4036d49e1aeSJan Lentfer (struct cryptoapi_rsa_data *) rsa->meth->app_data;
4046d49e1aeSJan Lentfer HCRYPTHASH hash;
4056d49e1aeSJan Lentfer DWORD hash_size, len, i;
4066d49e1aeSJan Lentfer unsigned char *buf = NULL;
4076d49e1aeSJan Lentfer int ret = 0;
4086d49e1aeSJan Lentfer
4096d49e1aeSJan Lentfer if (priv == NULL) {
4106d49e1aeSJan Lentfer RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
4116d49e1aeSJan Lentfer ERR_R_PASSED_NULL_PARAMETER);
4126d49e1aeSJan Lentfer return 0;
4136d49e1aeSJan Lentfer }
4146d49e1aeSJan Lentfer
4156d49e1aeSJan Lentfer if (padding != RSA_PKCS1_PADDING) {
4166d49e1aeSJan Lentfer RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
4176d49e1aeSJan Lentfer RSA_R_UNKNOWN_PADDING_TYPE);
4186d49e1aeSJan Lentfer return 0;
4196d49e1aeSJan Lentfer }
4206d49e1aeSJan Lentfer
4216d49e1aeSJan Lentfer if (flen != 16 /* MD5 */ + 20 /* SHA-1 */) {
4226d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "%s - only MD5-SHA1 hash supported",
4236d49e1aeSJan Lentfer __func__);
4246d49e1aeSJan Lentfer RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
4256d49e1aeSJan Lentfer RSA_R_INVALID_MESSAGE_LENGTH);
4266d49e1aeSJan Lentfer return 0;
4276d49e1aeSJan Lentfer }
4286d49e1aeSJan Lentfer
4296d49e1aeSJan Lentfer if (!CryptCreateHash(priv->crypt_prov, CALG_SSL3_SHAMD5, 0, 0, &hash))
4306d49e1aeSJan Lentfer {
4316d49e1aeSJan Lentfer cryptoapi_error("CryptCreateHash failed");
4326d49e1aeSJan Lentfer return 0;
4336d49e1aeSJan Lentfer }
4346d49e1aeSJan Lentfer
4356d49e1aeSJan Lentfer len = sizeof(hash_size);
4366d49e1aeSJan Lentfer if (!CryptGetHashParam(hash, HP_HASHSIZE, (BYTE *) &hash_size, &len,
4376d49e1aeSJan Lentfer 0)) {
4386d49e1aeSJan Lentfer cryptoapi_error("CryptGetHashParam failed");
4396d49e1aeSJan Lentfer goto err;
4406d49e1aeSJan Lentfer }
4416d49e1aeSJan Lentfer
4426d49e1aeSJan Lentfer if ((int) hash_size != flen) {
4436d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "CryptoAPI: Invalid hash size (%u != %d)",
4446d49e1aeSJan Lentfer (unsigned) hash_size, flen);
4456d49e1aeSJan Lentfer RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT,
4466d49e1aeSJan Lentfer RSA_R_INVALID_MESSAGE_LENGTH);
4476d49e1aeSJan Lentfer goto err;
4486d49e1aeSJan Lentfer }
4496d49e1aeSJan Lentfer if (!CryptSetHashParam(hash, HP_HASHVAL, (BYTE * ) from, 0)) {
4506d49e1aeSJan Lentfer cryptoapi_error("CryptSetHashParam failed");
4516d49e1aeSJan Lentfer goto err;
4526d49e1aeSJan Lentfer }
4536d49e1aeSJan Lentfer
4546d49e1aeSJan Lentfer len = RSA_size(rsa);
4556d49e1aeSJan Lentfer buf = os_malloc(len);
4566d49e1aeSJan Lentfer if (buf == NULL) {
4576d49e1aeSJan Lentfer RSAerr(RSA_F_RSA_EAY_PRIVATE_ENCRYPT, ERR_R_MALLOC_FAILURE);
4586d49e1aeSJan Lentfer goto err;
4596d49e1aeSJan Lentfer }
4606d49e1aeSJan Lentfer
4616d49e1aeSJan Lentfer if (!CryptSignHash(hash, priv->key_spec, NULL, 0, buf, &len)) {
4626d49e1aeSJan Lentfer cryptoapi_error("CryptSignHash failed");
4636d49e1aeSJan Lentfer goto err;
4646d49e1aeSJan Lentfer }
4656d49e1aeSJan Lentfer
4666d49e1aeSJan Lentfer for (i = 0; i < len; i++)
4676d49e1aeSJan Lentfer to[i] = buf[len - i - 1];
4686d49e1aeSJan Lentfer ret = len;
4696d49e1aeSJan Lentfer
4706d49e1aeSJan Lentfer err:
4716d49e1aeSJan Lentfer os_free(buf);
4726d49e1aeSJan Lentfer CryptDestroyHash(hash);
4736d49e1aeSJan Lentfer
4746d49e1aeSJan Lentfer return ret;
4756d49e1aeSJan Lentfer }
4766d49e1aeSJan Lentfer
4776d49e1aeSJan Lentfer
cryptoapi_rsa_priv_dec(int flen,const unsigned char * from,unsigned char * to,RSA * rsa,int padding)4786d49e1aeSJan Lentfer static int cryptoapi_rsa_priv_dec(int flen, const unsigned char *from,
4796d49e1aeSJan Lentfer unsigned char *to, RSA *rsa, int padding)
4806d49e1aeSJan Lentfer {
4816d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "%s - not implemented", __func__);
4826d49e1aeSJan Lentfer return 0;
4836d49e1aeSJan Lentfer }
4846d49e1aeSJan Lentfer
4856d49e1aeSJan Lentfer
cryptoapi_free_data(struct cryptoapi_rsa_data * priv)4866d49e1aeSJan Lentfer static void cryptoapi_free_data(struct cryptoapi_rsa_data *priv)
4876d49e1aeSJan Lentfer {
4886d49e1aeSJan Lentfer if (priv == NULL)
4896d49e1aeSJan Lentfer return;
4906d49e1aeSJan Lentfer if (priv->crypt_prov && priv->free_crypt_prov)
4916d49e1aeSJan Lentfer CryptReleaseContext(priv->crypt_prov, 0);
4926d49e1aeSJan Lentfer if (priv->cert)
4936d49e1aeSJan Lentfer CertFreeCertificateContext(priv->cert);
4946d49e1aeSJan Lentfer os_free(priv);
4956d49e1aeSJan Lentfer }
4966d49e1aeSJan Lentfer
4976d49e1aeSJan Lentfer
cryptoapi_finish(RSA * rsa)4986d49e1aeSJan Lentfer static int cryptoapi_finish(RSA *rsa)
4996d49e1aeSJan Lentfer {
5006d49e1aeSJan Lentfer cryptoapi_free_data((struct cryptoapi_rsa_data *) rsa->meth->app_data);
5016d49e1aeSJan Lentfer os_free((void *) rsa->meth);
5026d49e1aeSJan Lentfer rsa->meth = NULL;
5036d49e1aeSJan Lentfer return 1;
5046d49e1aeSJan Lentfer }
5056d49e1aeSJan Lentfer
5066d49e1aeSJan Lentfer
cryptoapi_find_cert(const char * name,DWORD store)5076d49e1aeSJan Lentfer static const CERT_CONTEXT * cryptoapi_find_cert(const char *name, DWORD store)
5086d49e1aeSJan Lentfer {
5096d49e1aeSJan Lentfer HCERTSTORE cs;
5106d49e1aeSJan Lentfer const CERT_CONTEXT *ret = NULL;
5116d49e1aeSJan Lentfer
5126d49e1aeSJan Lentfer cs = CertOpenStore((LPCSTR) CERT_STORE_PROV_SYSTEM, 0, 0,
5136d49e1aeSJan Lentfer store | CERT_STORE_OPEN_EXISTING_FLAG |
5146d49e1aeSJan Lentfer CERT_STORE_READONLY_FLAG, L"MY");
5156d49e1aeSJan Lentfer if (cs == NULL) {
5166d49e1aeSJan Lentfer cryptoapi_error("Failed to open 'My system store'");
5176d49e1aeSJan Lentfer return NULL;
5186d49e1aeSJan Lentfer }
5196d49e1aeSJan Lentfer
5206d49e1aeSJan Lentfer if (strncmp(name, "cert://", 7) == 0) {
5216d49e1aeSJan Lentfer unsigned short wbuf[255];
5226d49e1aeSJan Lentfer MultiByteToWideChar(CP_ACP, 0, name + 7, -1, wbuf, 255);
5236d49e1aeSJan Lentfer ret = CertFindCertificateInStore(cs, X509_ASN_ENCODING |
5246d49e1aeSJan Lentfer PKCS_7_ASN_ENCODING,
5256d49e1aeSJan Lentfer 0, CERT_FIND_SUBJECT_STR,
5266d49e1aeSJan Lentfer wbuf, NULL);
5276d49e1aeSJan Lentfer } else if (strncmp(name, "hash://", 7) == 0) {
5286d49e1aeSJan Lentfer CRYPT_HASH_BLOB blob;
5296d49e1aeSJan Lentfer int len;
5306d49e1aeSJan Lentfer const char *hash = name + 7;
5316d49e1aeSJan Lentfer unsigned char *buf;
5326d49e1aeSJan Lentfer
5336d49e1aeSJan Lentfer len = os_strlen(hash) / 2;
5346d49e1aeSJan Lentfer buf = os_malloc(len);
5356d49e1aeSJan Lentfer if (buf && hexstr2bin(hash, buf, len) == 0) {
5366d49e1aeSJan Lentfer blob.cbData = len;
5376d49e1aeSJan Lentfer blob.pbData = buf;
5386d49e1aeSJan Lentfer ret = CertFindCertificateInStore(cs,
5396d49e1aeSJan Lentfer X509_ASN_ENCODING |
5406d49e1aeSJan Lentfer PKCS_7_ASN_ENCODING,
5416d49e1aeSJan Lentfer 0, CERT_FIND_HASH,
5426d49e1aeSJan Lentfer &blob, NULL);
5436d49e1aeSJan Lentfer }
5446d49e1aeSJan Lentfer os_free(buf);
5456d49e1aeSJan Lentfer }
5466d49e1aeSJan Lentfer
5476d49e1aeSJan Lentfer CertCloseStore(cs, 0);
5486d49e1aeSJan Lentfer
5496d49e1aeSJan Lentfer return ret;
5506d49e1aeSJan Lentfer }
5516d49e1aeSJan Lentfer
5526d49e1aeSJan Lentfer
tls_cryptoapi_cert(SSL * ssl,const char * name)5536d49e1aeSJan Lentfer static int tls_cryptoapi_cert(SSL *ssl, const char *name)
5546d49e1aeSJan Lentfer {
5556d49e1aeSJan Lentfer X509 *cert = NULL;
5566d49e1aeSJan Lentfer RSA *rsa = NULL, *pub_rsa;
5576d49e1aeSJan Lentfer struct cryptoapi_rsa_data *priv;
5586d49e1aeSJan Lentfer RSA_METHOD *rsa_meth;
5596d49e1aeSJan Lentfer
5606d49e1aeSJan Lentfer if (name == NULL ||
5616d49e1aeSJan Lentfer (strncmp(name, "cert://", 7) != 0 &&
5626d49e1aeSJan Lentfer strncmp(name, "hash://", 7) != 0))
5636d49e1aeSJan Lentfer return -1;
5646d49e1aeSJan Lentfer
5656d49e1aeSJan Lentfer priv = os_zalloc(sizeof(*priv));
5666d49e1aeSJan Lentfer rsa_meth = os_zalloc(sizeof(*rsa_meth));
5676d49e1aeSJan Lentfer if (priv == NULL || rsa_meth == NULL) {
5686d49e1aeSJan Lentfer wpa_printf(MSG_WARNING, "CryptoAPI: Failed to allocate memory "
5696d49e1aeSJan Lentfer "for CryptoAPI RSA method");
5706d49e1aeSJan Lentfer os_free(priv);
5716d49e1aeSJan Lentfer os_free(rsa_meth);
5726d49e1aeSJan Lentfer return -1;
5736d49e1aeSJan Lentfer }
5746d49e1aeSJan Lentfer
5756d49e1aeSJan Lentfer priv->cert = cryptoapi_find_cert(name, CERT_SYSTEM_STORE_CURRENT_USER);
5766d49e1aeSJan Lentfer if (priv->cert == NULL) {
5776d49e1aeSJan Lentfer priv->cert = cryptoapi_find_cert(
5786d49e1aeSJan Lentfer name, CERT_SYSTEM_STORE_LOCAL_MACHINE);
5796d49e1aeSJan Lentfer }
5806d49e1aeSJan Lentfer if (priv->cert == NULL) {
5816d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "CryptoAPI: Could not find certificate "
5826d49e1aeSJan Lentfer "'%s'", name);
5836d49e1aeSJan Lentfer goto err;
5846d49e1aeSJan Lentfer }
5856d49e1aeSJan Lentfer
586*a1157835SDaniel Fojt cert = d2i_X509(NULL,
587*a1157835SDaniel Fojt (const unsigned char **) &priv->cert->pbCertEncoded,
5886d49e1aeSJan Lentfer priv->cert->cbCertEncoded);
5896d49e1aeSJan Lentfer if (cert == NULL) {
5906d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "CryptoAPI: Could not process X509 DER "
5916d49e1aeSJan Lentfer "encoding");
5926d49e1aeSJan Lentfer goto err;
5936d49e1aeSJan Lentfer }
5946d49e1aeSJan Lentfer
5956d49e1aeSJan Lentfer if (!CryptAcquireCertificatePrivateKey(priv->cert,
5966d49e1aeSJan Lentfer CRYPT_ACQUIRE_COMPARE_KEY_FLAG,
5976d49e1aeSJan Lentfer NULL, &priv->crypt_prov,
5986d49e1aeSJan Lentfer &priv->key_spec,
5996d49e1aeSJan Lentfer &priv->free_crypt_prov)) {
6006d49e1aeSJan Lentfer cryptoapi_error("Failed to acquire a private key for the "
6016d49e1aeSJan Lentfer "certificate");
6026d49e1aeSJan Lentfer goto err;
6036d49e1aeSJan Lentfer }
6046d49e1aeSJan Lentfer
6056d49e1aeSJan Lentfer rsa_meth->name = "Microsoft CryptoAPI RSA Method";
6066d49e1aeSJan Lentfer rsa_meth->rsa_pub_enc = cryptoapi_rsa_pub_enc;
6076d49e1aeSJan Lentfer rsa_meth->rsa_pub_dec = cryptoapi_rsa_pub_dec;
6086d49e1aeSJan Lentfer rsa_meth->rsa_priv_enc = cryptoapi_rsa_priv_enc;
6096d49e1aeSJan Lentfer rsa_meth->rsa_priv_dec = cryptoapi_rsa_priv_dec;
6106d49e1aeSJan Lentfer rsa_meth->finish = cryptoapi_finish;
6116d49e1aeSJan Lentfer rsa_meth->flags = RSA_METHOD_FLAG_NO_CHECK;
6126d49e1aeSJan Lentfer rsa_meth->app_data = (char *) priv;
6136d49e1aeSJan Lentfer
6146d49e1aeSJan Lentfer rsa = RSA_new();
6156d49e1aeSJan Lentfer if (rsa == NULL) {
6166d49e1aeSJan Lentfer SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE,
6176d49e1aeSJan Lentfer ERR_R_MALLOC_FAILURE);
6186d49e1aeSJan Lentfer goto err;
6196d49e1aeSJan Lentfer }
6206d49e1aeSJan Lentfer
6216d49e1aeSJan Lentfer if (!SSL_use_certificate(ssl, cert)) {
6226d49e1aeSJan Lentfer RSA_free(rsa);
6236d49e1aeSJan Lentfer rsa = NULL;
6246d49e1aeSJan Lentfer goto err;
6256d49e1aeSJan Lentfer }
6266d49e1aeSJan Lentfer pub_rsa = cert->cert_info->key->pkey->pkey.rsa;
6276d49e1aeSJan Lentfer X509_free(cert);
6286d49e1aeSJan Lentfer cert = NULL;
6296d49e1aeSJan Lentfer
6306d49e1aeSJan Lentfer rsa->n = BN_dup(pub_rsa->n);
6316d49e1aeSJan Lentfer rsa->e = BN_dup(pub_rsa->e);
6326d49e1aeSJan Lentfer if (!RSA_set_method(rsa, rsa_meth))
6336d49e1aeSJan Lentfer goto err;
6346d49e1aeSJan Lentfer
6356d49e1aeSJan Lentfer if (!SSL_use_RSAPrivateKey(ssl, rsa))
6366d49e1aeSJan Lentfer goto err;
6376d49e1aeSJan Lentfer RSA_free(rsa);
6386d49e1aeSJan Lentfer
6396d49e1aeSJan Lentfer return 0;
6406d49e1aeSJan Lentfer
6416d49e1aeSJan Lentfer err:
6426d49e1aeSJan Lentfer if (cert)
6436d49e1aeSJan Lentfer X509_free(cert);
6446d49e1aeSJan Lentfer if (rsa)
6456d49e1aeSJan Lentfer RSA_free(rsa);
6466d49e1aeSJan Lentfer else {
6476d49e1aeSJan Lentfer os_free(rsa_meth);
6486d49e1aeSJan Lentfer cryptoapi_free_data(priv);
6496d49e1aeSJan Lentfer }
6506d49e1aeSJan Lentfer return -1;
6516d49e1aeSJan Lentfer }
6526d49e1aeSJan Lentfer
6536d49e1aeSJan Lentfer
tls_cryptoapi_ca_cert(SSL_CTX * ssl_ctx,SSL * ssl,const char * name)6546d49e1aeSJan Lentfer static int tls_cryptoapi_ca_cert(SSL_CTX *ssl_ctx, SSL *ssl, const char *name)
6556d49e1aeSJan Lentfer {
6566d49e1aeSJan Lentfer HCERTSTORE cs;
6576d49e1aeSJan Lentfer PCCERT_CONTEXT ctx = NULL;
6586d49e1aeSJan Lentfer X509 *cert;
6596d49e1aeSJan Lentfer char buf[128];
6606d49e1aeSJan Lentfer const char *store;
6616d49e1aeSJan Lentfer #ifdef UNICODE
6626d49e1aeSJan Lentfer WCHAR *wstore;
6636d49e1aeSJan Lentfer #endif /* UNICODE */
6646d49e1aeSJan Lentfer
6656d49e1aeSJan Lentfer if (name == NULL || strncmp(name, "cert_store://", 13) != 0)
6666d49e1aeSJan Lentfer return -1;
6676d49e1aeSJan Lentfer
6686d49e1aeSJan Lentfer store = name + 13;
6696d49e1aeSJan Lentfer #ifdef UNICODE
6706d49e1aeSJan Lentfer wstore = os_malloc((os_strlen(store) + 1) * sizeof(WCHAR));
6716d49e1aeSJan Lentfer if (wstore == NULL)
6726d49e1aeSJan Lentfer return -1;
6736d49e1aeSJan Lentfer wsprintf(wstore, L"%S", store);
6746d49e1aeSJan Lentfer cs = CertOpenSystemStore(0, wstore);
6756d49e1aeSJan Lentfer os_free(wstore);
6766d49e1aeSJan Lentfer #else /* UNICODE */
6776d49e1aeSJan Lentfer cs = CertOpenSystemStore(0, store);
6786d49e1aeSJan Lentfer #endif /* UNICODE */
6796d49e1aeSJan Lentfer if (cs == NULL) {
6806d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "%s: failed to open system cert store "
6816d49e1aeSJan Lentfer "'%s': error=%d", __func__, store,
6826d49e1aeSJan Lentfer (int) GetLastError());
6836d49e1aeSJan Lentfer return -1;
6846d49e1aeSJan Lentfer }
6856d49e1aeSJan Lentfer
6866d49e1aeSJan Lentfer while ((ctx = CertEnumCertificatesInStore(cs, ctx))) {
687*a1157835SDaniel Fojt cert = d2i_X509(NULL,
688*a1157835SDaniel Fojt (const unsigned char **) &ctx->pbCertEncoded,
6896d49e1aeSJan Lentfer ctx->cbCertEncoded);
6906d49e1aeSJan Lentfer if (cert == NULL) {
6916d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "CryptoAPI: Could not process "
6926d49e1aeSJan Lentfer "X509 DER encoding for CA cert");
6936d49e1aeSJan Lentfer continue;
6946d49e1aeSJan Lentfer }
6956d49e1aeSJan Lentfer
6966d49e1aeSJan Lentfer X509_NAME_oneline(X509_get_subject_name(cert), buf,
6976d49e1aeSJan Lentfer sizeof(buf));
6986d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: Loaded CA certificate for "
6996d49e1aeSJan Lentfer "system certificate store: subject='%s'", buf);
7006d49e1aeSJan Lentfer
701*a1157835SDaniel Fojt if (!X509_STORE_add_cert(SSL_CTX_get_cert_store(ssl_ctx),
702*a1157835SDaniel Fojt cert)) {
7036d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
7046d49e1aeSJan Lentfer "Failed to add ca_cert to OpenSSL "
7056d49e1aeSJan Lentfer "certificate store");
7066d49e1aeSJan Lentfer }
7076d49e1aeSJan Lentfer
7086d49e1aeSJan Lentfer X509_free(cert);
7096d49e1aeSJan Lentfer }
7106d49e1aeSJan Lentfer
7116d49e1aeSJan Lentfer if (!CertCloseStore(cs, 0)) {
7126d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "%s: failed to close system cert store "
7136d49e1aeSJan Lentfer "'%s': error=%d", __func__, name + 13,
7146d49e1aeSJan Lentfer (int) GetLastError());
7156d49e1aeSJan Lentfer }
7166d49e1aeSJan Lentfer
7176d49e1aeSJan Lentfer return 0;
7186d49e1aeSJan Lentfer }
7196d49e1aeSJan Lentfer
7206d49e1aeSJan Lentfer
7216d49e1aeSJan Lentfer #else /* CONFIG_NATIVE_WINDOWS */
7226d49e1aeSJan Lentfer
tls_cryptoapi_cert(SSL * ssl,const char * name)7236d49e1aeSJan Lentfer static int tls_cryptoapi_cert(SSL *ssl, const char *name)
7246d49e1aeSJan Lentfer {
7256d49e1aeSJan Lentfer return -1;
7266d49e1aeSJan Lentfer }
7276d49e1aeSJan Lentfer
7286d49e1aeSJan Lentfer #endif /* CONFIG_NATIVE_WINDOWS */
7296d49e1aeSJan Lentfer
7306d49e1aeSJan Lentfer
ssl_info_cb(const SSL * ssl,int where,int ret)7316d49e1aeSJan Lentfer static void ssl_info_cb(const SSL *ssl, int where, int ret)
7326d49e1aeSJan Lentfer {
7336d49e1aeSJan Lentfer const char *str;
7346d49e1aeSJan Lentfer int w;
7356d49e1aeSJan Lentfer
7366d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: (where=0x%x ret=0x%x)", where, ret);
7376d49e1aeSJan Lentfer w = where & ~SSL_ST_MASK;
7386d49e1aeSJan Lentfer if (w & SSL_ST_CONNECT)
7396d49e1aeSJan Lentfer str = "SSL_connect";
7406d49e1aeSJan Lentfer else if (w & SSL_ST_ACCEPT)
7416d49e1aeSJan Lentfer str = "SSL_accept";
7426d49e1aeSJan Lentfer else
7436d49e1aeSJan Lentfer str = "undefined";
7446d49e1aeSJan Lentfer
7456d49e1aeSJan Lentfer if (where & SSL_CB_LOOP) {
7466d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: %s:%s",
7476d49e1aeSJan Lentfer str, SSL_state_string_long(ssl));
7486d49e1aeSJan Lentfer } else if (where & SSL_CB_ALERT) {
7493ff40c12SJohn Marino struct tls_connection *conn = SSL_get_app_data((SSL *) ssl);
7506d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "SSL: SSL3 alert: %s:%s:%s",
7516d49e1aeSJan Lentfer where & SSL_CB_READ ?
7526d49e1aeSJan Lentfer "read (remote end reported an error)" :
7536d49e1aeSJan Lentfer "write (local SSL3 detected an error)",
7546d49e1aeSJan Lentfer SSL_alert_type_string_long(ret),
7556d49e1aeSJan Lentfer SSL_alert_desc_string_long(ret));
7566d49e1aeSJan Lentfer if ((ret >> 8) == SSL3_AL_FATAL) {
7576d49e1aeSJan Lentfer if (where & SSL_CB_READ)
7586d49e1aeSJan Lentfer conn->read_alerts++;
7596d49e1aeSJan Lentfer else
7606d49e1aeSJan Lentfer conn->write_alerts++;
7616d49e1aeSJan Lentfer }
7623ff40c12SJohn Marino if (conn->context->event_cb != NULL) {
7633ff40c12SJohn Marino union tls_event_data ev;
7643ff40c12SJohn Marino struct tls_context *context = conn->context;
7653ff40c12SJohn Marino os_memset(&ev, 0, sizeof(ev));
7663ff40c12SJohn Marino ev.alert.is_local = !(where & SSL_CB_READ);
7673ff40c12SJohn Marino ev.alert.type = SSL_alert_type_string_long(ret);
7683ff40c12SJohn Marino ev.alert.description = SSL_alert_desc_string_long(ret);
7693ff40c12SJohn Marino context->event_cb(context->cb_ctx, TLS_ALERT, &ev);
7703ff40c12SJohn Marino }
7716d49e1aeSJan Lentfer } else if (where & SSL_CB_EXIT && ret <= 0) {
7726d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: %s:%s in %s",
7736d49e1aeSJan Lentfer str, ret == 0 ? "failed" : "error",
7746d49e1aeSJan Lentfer SSL_state_string_long(ssl));
7756d49e1aeSJan Lentfer }
7766d49e1aeSJan Lentfer }
7776d49e1aeSJan Lentfer
7786d49e1aeSJan Lentfer
7796d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
7806d49e1aeSJan Lentfer /**
7816d49e1aeSJan Lentfer * tls_engine_load_dynamic_generic - load any openssl engine
7826d49e1aeSJan Lentfer * @pre: an array of commands and values that load an engine initialized
7836d49e1aeSJan Lentfer * in the engine specific function
7846d49e1aeSJan Lentfer * @post: an array of commands and values that initialize an already loaded
7856d49e1aeSJan Lentfer * engine (or %NULL if not required)
7866d49e1aeSJan Lentfer * @id: the engine id of the engine to load (only required if post is not %NULL
7876d49e1aeSJan Lentfer *
7886d49e1aeSJan Lentfer * This function is a generic function that loads any openssl engine.
7896d49e1aeSJan Lentfer *
7906d49e1aeSJan Lentfer * Returns: 0 on success, -1 on failure
7916d49e1aeSJan Lentfer */
tls_engine_load_dynamic_generic(const char * pre[],const char * post[],const char * id)7926d49e1aeSJan Lentfer static int tls_engine_load_dynamic_generic(const char *pre[],
7936d49e1aeSJan Lentfer const char *post[], const char *id)
7946d49e1aeSJan Lentfer {
7956d49e1aeSJan Lentfer ENGINE *engine;
7966d49e1aeSJan Lentfer const char *dynamic_id = "dynamic";
7976d49e1aeSJan Lentfer
7986d49e1aeSJan Lentfer engine = ENGINE_by_id(id);
7996d49e1aeSJan Lentfer if (engine) {
8006d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: engine '%s' is already "
8016d49e1aeSJan Lentfer "available", id);
802*a1157835SDaniel Fojt /*
803*a1157835SDaniel Fojt * If it was auto-loaded by ENGINE_by_id() we might still
804*a1157835SDaniel Fojt * need to tell it which PKCS#11 module to use in legacy
805*a1157835SDaniel Fojt * (non-p11-kit) environments. Do so now; even if it was
806*a1157835SDaniel Fojt * properly initialised before, setting it again will be
807*a1157835SDaniel Fojt * harmless.
808*a1157835SDaniel Fojt */
809*a1157835SDaniel Fojt goto found;
8106d49e1aeSJan Lentfer }
8116d49e1aeSJan Lentfer ERR_clear_error();
8126d49e1aeSJan Lentfer
8136d49e1aeSJan Lentfer engine = ENGINE_by_id(dynamic_id);
8146d49e1aeSJan Lentfer if (engine == NULL) {
8156d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "ENGINE: Can't find engine %s [%s]",
8166d49e1aeSJan Lentfer dynamic_id,
8176d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
8186d49e1aeSJan Lentfer return -1;
8196d49e1aeSJan Lentfer }
8206d49e1aeSJan Lentfer
8216d49e1aeSJan Lentfer /* Perform the pre commands. This will load the engine. */
8226d49e1aeSJan Lentfer while (pre && pre[0]) {
8236d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: '%s' '%s'", pre[0], pre[1]);
8246d49e1aeSJan Lentfer if (ENGINE_ctrl_cmd_string(engine, pre[0], pre[1], 0) == 0) {
8256d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "ENGINE: ctrl cmd_string failed: "
8266d49e1aeSJan Lentfer "%s %s [%s]", pre[0], pre[1],
8276d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
8286d49e1aeSJan Lentfer ENGINE_free(engine);
8296d49e1aeSJan Lentfer return -1;
8306d49e1aeSJan Lentfer }
8316d49e1aeSJan Lentfer pre += 2;
8326d49e1aeSJan Lentfer }
8336d49e1aeSJan Lentfer
8346d49e1aeSJan Lentfer /*
8356d49e1aeSJan Lentfer * Free the reference to the "dynamic" engine. The loaded engine can
8366d49e1aeSJan Lentfer * now be looked up using ENGINE_by_id().
8376d49e1aeSJan Lentfer */
8386d49e1aeSJan Lentfer ENGINE_free(engine);
8396d49e1aeSJan Lentfer
8406d49e1aeSJan Lentfer engine = ENGINE_by_id(id);
8416d49e1aeSJan Lentfer if (engine == NULL) {
8426d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "ENGINE: Can't find engine %s [%s]",
8436d49e1aeSJan Lentfer id, ERR_error_string(ERR_get_error(), NULL));
8446d49e1aeSJan Lentfer return -1;
8456d49e1aeSJan Lentfer }
846*a1157835SDaniel Fojt found:
8476d49e1aeSJan Lentfer while (post && post[0]) {
8486d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: '%s' '%s'", post[0], post[1]);
8496d49e1aeSJan Lentfer if (ENGINE_ctrl_cmd_string(engine, post[0], post[1], 0) == 0) {
8506d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: ctrl cmd_string failed:"
8516d49e1aeSJan Lentfer " %s %s [%s]", post[0], post[1],
8526d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
8536d49e1aeSJan Lentfer ENGINE_remove(engine);
8546d49e1aeSJan Lentfer ENGINE_free(engine);
8556d49e1aeSJan Lentfer return -1;
8566d49e1aeSJan Lentfer }
8576d49e1aeSJan Lentfer post += 2;
8586d49e1aeSJan Lentfer }
8596d49e1aeSJan Lentfer ENGINE_free(engine);
8606d49e1aeSJan Lentfer
8616d49e1aeSJan Lentfer return 0;
8626d49e1aeSJan Lentfer }
8636d49e1aeSJan Lentfer
8646d49e1aeSJan Lentfer
8656d49e1aeSJan Lentfer /**
8666d49e1aeSJan Lentfer * tls_engine_load_dynamic_pkcs11 - load the pkcs11 engine provided by opensc
8676d49e1aeSJan Lentfer * @pkcs11_so_path: pksc11_so_path from the configuration
8686d49e1aeSJan Lentfer * @pcks11_module_path: pkcs11_module_path from the configuration
8696d49e1aeSJan Lentfer */
tls_engine_load_dynamic_pkcs11(const char * pkcs11_so_path,const char * pkcs11_module_path)8706d49e1aeSJan Lentfer static int tls_engine_load_dynamic_pkcs11(const char *pkcs11_so_path,
8716d49e1aeSJan Lentfer const char *pkcs11_module_path)
8726d49e1aeSJan Lentfer {
8736d49e1aeSJan Lentfer char *engine_id = "pkcs11";
8746d49e1aeSJan Lentfer const char *pre_cmd[] = {
8756d49e1aeSJan Lentfer "SO_PATH", NULL /* pkcs11_so_path */,
8766d49e1aeSJan Lentfer "ID", NULL /* engine_id */,
8776d49e1aeSJan Lentfer "LIST_ADD", "1",
8786d49e1aeSJan Lentfer /* "NO_VCHECK", "1", */
8796d49e1aeSJan Lentfer "LOAD", NULL,
8806d49e1aeSJan Lentfer NULL, NULL
8816d49e1aeSJan Lentfer };
8826d49e1aeSJan Lentfer const char *post_cmd[] = {
8836d49e1aeSJan Lentfer "MODULE_PATH", NULL /* pkcs11_module_path */,
8846d49e1aeSJan Lentfer NULL, NULL
8856d49e1aeSJan Lentfer };
8866d49e1aeSJan Lentfer
887*a1157835SDaniel Fojt if (!pkcs11_so_path)
8886d49e1aeSJan Lentfer return 0;
8896d49e1aeSJan Lentfer
8906d49e1aeSJan Lentfer pre_cmd[1] = pkcs11_so_path;
8916d49e1aeSJan Lentfer pre_cmd[3] = engine_id;
892*a1157835SDaniel Fojt if (pkcs11_module_path)
8936d49e1aeSJan Lentfer post_cmd[1] = pkcs11_module_path;
894*a1157835SDaniel Fojt else
895*a1157835SDaniel Fojt post_cmd[0] = NULL;
8966d49e1aeSJan Lentfer
8976d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: Loading pkcs11 Engine from %s",
8986d49e1aeSJan Lentfer pkcs11_so_path);
8996d49e1aeSJan Lentfer
9006d49e1aeSJan Lentfer return tls_engine_load_dynamic_generic(pre_cmd, post_cmd, engine_id);
9016d49e1aeSJan Lentfer }
9026d49e1aeSJan Lentfer
9036d49e1aeSJan Lentfer
9046d49e1aeSJan Lentfer /**
9056d49e1aeSJan Lentfer * tls_engine_load_dynamic_opensc - load the opensc engine provided by opensc
9066d49e1aeSJan Lentfer * @opensc_so_path: opensc_so_path from the configuration
9076d49e1aeSJan Lentfer */
tls_engine_load_dynamic_opensc(const char * opensc_so_path)9086d49e1aeSJan Lentfer static int tls_engine_load_dynamic_opensc(const char *opensc_so_path)
9096d49e1aeSJan Lentfer {
9106d49e1aeSJan Lentfer char *engine_id = "opensc";
9116d49e1aeSJan Lentfer const char *pre_cmd[] = {
9126d49e1aeSJan Lentfer "SO_PATH", NULL /* opensc_so_path */,
9136d49e1aeSJan Lentfer "ID", NULL /* engine_id */,
9146d49e1aeSJan Lentfer "LIST_ADD", "1",
9156d49e1aeSJan Lentfer "LOAD", NULL,
9166d49e1aeSJan Lentfer NULL, NULL
9176d49e1aeSJan Lentfer };
9186d49e1aeSJan Lentfer
9196d49e1aeSJan Lentfer if (!opensc_so_path)
9206d49e1aeSJan Lentfer return 0;
9216d49e1aeSJan Lentfer
9226d49e1aeSJan Lentfer pre_cmd[1] = opensc_so_path;
9236d49e1aeSJan Lentfer pre_cmd[3] = engine_id;
9246d49e1aeSJan Lentfer
9256d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: Loading OpenSC Engine from %s",
9266d49e1aeSJan Lentfer opensc_so_path);
9276d49e1aeSJan Lentfer
9286d49e1aeSJan Lentfer return tls_engine_load_dynamic_generic(pre_cmd, NULL, engine_id);
9296d49e1aeSJan Lentfer }
9306d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
9316d49e1aeSJan Lentfer
9326d49e1aeSJan Lentfer
remove_session_cb(SSL_CTX * ctx,SSL_SESSION * sess)933*a1157835SDaniel Fojt static void remove_session_cb(SSL_CTX *ctx, SSL_SESSION *sess)
934*a1157835SDaniel Fojt {
935*a1157835SDaniel Fojt struct wpabuf *buf;
936*a1157835SDaniel Fojt
937*a1157835SDaniel Fojt if (tls_ex_idx_session < 0)
938*a1157835SDaniel Fojt return;
939*a1157835SDaniel Fojt buf = SSL_SESSION_get_ex_data(sess, tls_ex_idx_session);
940*a1157835SDaniel Fojt if (!buf)
941*a1157835SDaniel Fojt return;
942*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
943*a1157835SDaniel Fojt "OpenSSL: Free application session data %p (sess %p)",
944*a1157835SDaniel Fojt buf, sess);
945*a1157835SDaniel Fojt wpabuf_free(buf);
946*a1157835SDaniel Fojt
947*a1157835SDaniel Fojt SSL_SESSION_set_ex_data(sess, tls_ex_idx_session, NULL);
948*a1157835SDaniel Fojt }
949*a1157835SDaniel Fojt
950*a1157835SDaniel Fojt
tls_init(const struct tls_config * conf)9516d49e1aeSJan Lentfer void * tls_init(const struct tls_config *conf)
9526d49e1aeSJan Lentfer {
953*a1157835SDaniel Fojt struct tls_data *data;
9546d49e1aeSJan Lentfer SSL_CTX *ssl;
9553ff40c12SJohn Marino struct tls_context *context;
956*a1157835SDaniel Fojt const char *ciphers;
9576d49e1aeSJan Lentfer
9586d49e1aeSJan Lentfer if (tls_openssl_ref_count == 0) {
9593ff40c12SJohn Marino tls_global = context = tls_context_new(conf);
9603ff40c12SJohn Marino if (context == NULL)
9613ff40c12SJohn Marino return NULL;
9623ff40c12SJohn Marino #ifdef CONFIG_FIPS
9633ff40c12SJohn Marino #ifdef OPENSSL_FIPS
9643ff40c12SJohn Marino if (conf && conf->fips_mode) {
965*a1157835SDaniel Fojt static int fips_enabled = 0;
966*a1157835SDaniel Fojt
967*a1157835SDaniel Fojt if (!fips_enabled && !FIPS_mode_set(1)) {
9683ff40c12SJohn Marino wpa_printf(MSG_ERROR, "Failed to enable FIPS "
9693ff40c12SJohn Marino "mode");
9703ff40c12SJohn Marino ERR_load_crypto_strings();
9713ff40c12SJohn Marino ERR_print_errors_fp(stderr);
9723ff40c12SJohn Marino os_free(tls_global);
9733ff40c12SJohn Marino tls_global = NULL;
9743ff40c12SJohn Marino return NULL;
975*a1157835SDaniel Fojt } else {
9763ff40c12SJohn Marino wpa_printf(MSG_INFO, "Running in FIPS mode");
977*a1157835SDaniel Fojt fips_enabled = 1;
978*a1157835SDaniel Fojt }
9793ff40c12SJohn Marino }
9803ff40c12SJohn Marino #else /* OPENSSL_FIPS */
9813ff40c12SJohn Marino if (conf && conf->fips_mode) {
9823ff40c12SJohn Marino wpa_printf(MSG_ERROR, "FIPS mode requested, but not "
9833ff40c12SJohn Marino "supported");
9843ff40c12SJohn Marino os_free(tls_global);
9853ff40c12SJohn Marino tls_global = NULL;
9863ff40c12SJohn Marino return NULL;
9873ff40c12SJohn Marino }
9883ff40c12SJohn Marino #endif /* OPENSSL_FIPS */
9893ff40c12SJohn Marino #endif /* CONFIG_FIPS */
990*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L || \
991*a1157835SDaniel Fojt (defined(LIBRESSL_VERSION_NUMBER) && \
992*a1157835SDaniel Fojt LIBRESSL_VERSION_NUMBER < 0x20700000L)
9936d49e1aeSJan Lentfer SSL_load_error_strings();
9946d49e1aeSJan Lentfer SSL_library_init();
995*a1157835SDaniel Fojt #ifndef OPENSSL_NO_SHA256
9966d49e1aeSJan Lentfer EVP_add_digest(EVP_sha256());
9976d49e1aeSJan Lentfer #endif /* OPENSSL_NO_SHA256 */
9986d49e1aeSJan Lentfer /* TODO: if /dev/urandom is available, PRNG is seeded
9996d49e1aeSJan Lentfer * automatically. If this is not the case, random data should
10006d49e1aeSJan Lentfer * be added here. */
10016d49e1aeSJan Lentfer
10026d49e1aeSJan Lentfer #ifdef PKCS12_FUNCS
10036d49e1aeSJan Lentfer #ifndef OPENSSL_NO_RC2
10046d49e1aeSJan Lentfer /*
10056d49e1aeSJan Lentfer * 40-bit RC2 is commonly used in PKCS#12 files, so enable it.
10066d49e1aeSJan Lentfer * This is enabled by PKCS12_PBE_add() in OpenSSL 0.9.8
10076d49e1aeSJan Lentfer * versions, but it looks like OpenSSL 1.0.0 does not do that
10086d49e1aeSJan Lentfer * anymore.
10096d49e1aeSJan Lentfer */
10106d49e1aeSJan Lentfer EVP_add_cipher(EVP_rc2_40_cbc());
10116d49e1aeSJan Lentfer #endif /* OPENSSL_NO_RC2 */
10126d49e1aeSJan Lentfer PKCS12_PBE_add();
10136d49e1aeSJan Lentfer #endif /* PKCS12_FUNCS */
1014*a1157835SDaniel Fojt #endif /* < 1.1.0 */
10153ff40c12SJohn Marino } else {
10163ff40c12SJohn Marino context = tls_context_new(conf);
10173ff40c12SJohn Marino if (context == NULL)
10183ff40c12SJohn Marino return NULL;
10196d49e1aeSJan Lentfer }
10206d49e1aeSJan Lentfer tls_openssl_ref_count++;
10216d49e1aeSJan Lentfer
1022*a1157835SDaniel Fojt data = os_zalloc(sizeof(*data));
1023*a1157835SDaniel Fojt if (data)
1024*a1157835SDaniel Fojt ssl = SSL_CTX_new(SSLv23_method());
1025*a1157835SDaniel Fojt else
1026*a1157835SDaniel Fojt ssl = NULL;
10273ff40c12SJohn Marino if (ssl == NULL) {
10283ff40c12SJohn Marino tls_openssl_ref_count--;
10293ff40c12SJohn Marino if (context != tls_global)
10303ff40c12SJohn Marino os_free(context);
10313ff40c12SJohn Marino if (tls_openssl_ref_count == 0) {
10323ff40c12SJohn Marino os_free(tls_global);
10333ff40c12SJohn Marino tls_global = NULL;
10343ff40c12SJohn Marino }
1035*a1157835SDaniel Fojt os_free(data);
10366d49e1aeSJan Lentfer return NULL;
10373ff40c12SJohn Marino }
1038*a1157835SDaniel Fojt data->ssl = ssl;
1039*a1157835SDaniel Fojt if (conf) {
1040*a1157835SDaniel Fojt data->tls_session_lifetime = conf->tls_session_lifetime;
1041*a1157835SDaniel Fojt data->crl_reload_interval = conf->crl_reload_interval;
1042*a1157835SDaniel Fojt }
1043*a1157835SDaniel Fojt
1044*a1157835SDaniel Fojt SSL_CTX_set_options(ssl, SSL_OP_NO_SSLv2);
1045*a1157835SDaniel Fojt SSL_CTX_set_options(ssl, SSL_OP_NO_SSLv3);
1046*a1157835SDaniel Fojt
1047*a1157835SDaniel Fojt #ifdef SSL_MODE_NO_AUTO_CHAIN
1048*a1157835SDaniel Fojt /* Number of deployed use cases assume the default OpenSSL behavior of
1049*a1157835SDaniel Fojt * auto chaining the local certificate is in use. BoringSSL removed this
1050*a1157835SDaniel Fojt * functionality by default, so we need to restore it here to avoid
1051*a1157835SDaniel Fojt * breaking existing use cases. */
1052*a1157835SDaniel Fojt SSL_CTX_clear_mode(ssl, SSL_MODE_NO_AUTO_CHAIN);
1053*a1157835SDaniel Fojt #endif /* SSL_MODE_NO_AUTO_CHAIN */
10546d49e1aeSJan Lentfer
10556d49e1aeSJan Lentfer SSL_CTX_set_info_callback(ssl, ssl_info_cb);
10563ff40c12SJohn Marino SSL_CTX_set_app_data(ssl, context);
1057*a1157835SDaniel Fojt if (data->tls_session_lifetime > 0) {
1058*a1157835SDaniel Fojt SSL_CTX_set_quiet_shutdown(ssl, 1);
1059*a1157835SDaniel Fojt /*
1060*a1157835SDaniel Fojt * Set default context here. In practice, this will be replaced
1061*a1157835SDaniel Fojt * by the per-EAP method context in tls_connection_set_verify().
1062*a1157835SDaniel Fojt */
1063*a1157835SDaniel Fojt SSL_CTX_set_session_id_context(ssl, (u8 *) "hostapd", 7);
1064*a1157835SDaniel Fojt SSL_CTX_set_session_cache_mode(ssl, SSL_SESS_CACHE_SERVER);
1065*a1157835SDaniel Fojt SSL_CTX_set_timeout(ssl, data->tls_session_lifetime);
1066*a1157835SDaniel Fojt SSL_CTX_sess_set_remove_cb(ssl, remove_session_cb);
1067*a1157835SDaniel Fojt } else {
1068*a1157835SDaniel Fojt SSL_CTX_set_session_cache_mode(ssl, SSL_SESS_CACHE_OFF);
1069*a1157835SDaniel Fojt }
1070*a1157835SDaniel Fojt
1071*a1157835SDaniel Fojt if (tls_ex_idx_session < 0) {
1072*a1157835SDaniel Fojt tls_ex_idx_session = SSL_SESSION_get_ex_new_index(
1073*a1157835SDaniel Fojt 0, NULL, NULL, NULL, NULL);
1074*a1157835SDaniel Fojt if (tls_ex_idx_session < 0) {
1075*a1157835SDaniel Fojt tls_deinit(data);
1076*a1157835SDaniel Fojt return NULL;
1077*a1157835SDaniel Fojt }
1078*a1157835SDaniel Fojt }
10796d49e1aeSJan Lentfer
10806d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
1081*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "ENGINE: Loading builtin engines");
1082*a1157835SDaniel Fojt ENGINE_load_builtin_engines();
1083*a1157835SDaniel Fojt
10846d49e1aeSJan Lentfer if (conf &&
10856d49e1aeSJan Lentfer (conf->opensc_engine_path || conf->pkcs11_engine_path ||
10866d49e1aeSJan Lentfer conf->pkcs11_module_path)) {
10876d49e1aeSJan Lentfer if (tls_engine_load_dynamic_opensc(conf->opensc_engine_path) ||
10886d49e1aeSJan Lentfer tls_engine_load_dynamic_pkcs11(conf->pkcs11_engine_path,
10896d49e1aeSJan Lentfer conf->pkcs11_module_path)) {
1090*a1157835SDaniel Fojt tls_deinit(data);
10916d49e1aeSJan Lentfer return NULL;
10926d49e1aeSJan Lentfer }
10936d49e1aeSJan Lentfer }
10946d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
10956d49e1aeSJan Lentfer
1096*a1157835SDaniel Fojt if (conf && conf->openssl_ciphers)
1097*a1157835SDaniel Fojt ciphers = conf->openssl_ciphers;
1098*a1157835SDaniel Fojt else
1099*a1157835SDaniel Fojt ciphers = TLS_DEFAULT_CIPHERS;
1100*a1157835SDaniel Fojt if (SSL_CTX_set_cipher_list(ssl, ciphers) != 1) {
1101*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1102*a1157835SDaniel Fojt "OpenSSL: Failed to set cipher string '%s'",
1103*a1157835SDaniel Fojt ciphers);
1104*a1157835SDaniel Fojt tls_deinit(data);
1105*a1157835SDaniel Fojt return NULL;
1106*a1157835SDaniel Fojt }
1107*a1157835SDaniel Fojt
1108*a1157835SDaniel Fojt return data;
11096d49e1aeSJan Lentfer }
11106d49e1aeSJan Lentfer
11116d49e1aeSJan Lentfer
tls_deinit(void * ssl_ctx)11126d49e1aeSJan Lentfer void tls_deinit(void *ssl_ctx)
11136d49e1aeSJan Lentfer {
1114*a1157835SDaniel Fojt struct tls_data *data = ssl_ctx;
1115*a1157835SDaniel Fojt SSL_CTX *ssl = data->ssl;
11163ff40c12SJohn Marino struct tls_context *context = SSL_CTX_get_app_data(ssl);
11173ff40c12SJohn Marino if (context != tls_global)
11183ff40c12SJohn Marino os_free(context);
1119*a1157835SDaniel Fojt if (data->tls_session_lifetime > 0)
1120*a1157835SDaniel Fojt SSL_CTX_flush_sessions(ssl, 0);
1121*a1157835SDaniel Fojt os_free(data->ca_cert);
11226d49e1aeSJan Lentfer SSL_CTX_free(ssl);
11236d49e1aeSJan Lentfer
11246d49e1aeSJan Lentfer tls_openssl_ref_count--;
11256d49e1aeSJan Lentfer if (tls_openssl_ref_count == 0) {
1126*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L || \
1127*a1157835SDaniel Fojt (defined(LIBRESSL_VERSION_NUMBER) && \
1128*a1157835SDaniel Fojt LIBRESSL_VERSION_NUMBER < 0x20700000L)
11296d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
11306d49e1aeSJan Lentfer ENGINE_cleanup();
11316d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
11326d49e1aeSJan Lentfer CRYPTO_cleanup_all_ex_data();
1133*a1157835SDaniel Fojt ERR_remove_thread_state(NULL);
11346d49e1aeSJan Lentfer ERR_free_strings();
11356d49e1aeSJan Lentfer EVP_cleanup();
1136*a1157835SDaniel Fojt #endif /* < 1.1.0 */
11373ff40c12SJohn Marino os_free(tls_global->ocsp_stapling_response);
11383ff40c12SJohn Marino tls_global->ocsp_stapling_response = NULL;
11393ff40c12SJohn Marino os_free(tls_global);
11403ff40c12SJohn Marino tls_global = NULL;
11416d49e1aeSJan Lentfer }
1142*a1157835SDaniel Fojt
1143*a1157835SDaniel Fojt os_free(data->check_cert_subject);
1144*a1157835SDaniel Fojt os_free(data);
11456d49e1aeSJan Lentfer }
11466d49e1aeSJan Lentfer
11476d49e1aeSJan Lentfer
1148*a1157835SDaniel Fojt #ifndef OPENSSL_NO_ENGINE
1149*a1157835SDaniel Fojt
1150*a1157835SDaniel Fojt /* Cryptoki return values */
1151*a1157835SDaniel Fojt #define CKR_PIN_INCORRECT 0x000000a0
1152*a1157835SDaniel Fojt #define CKR_PIN_INVALID 0x000000a1
1153*a1157835SDaniel Fojt #define CKR_PIN_LEN_RANGE 0x000000a2
1154*a1157835SDaniel Fojt
1155*a1157835SDaniel Fojt /* libp11 */
1156*a1157835SDaniel Fojt #define ERR_LIB_PKCS11 ERR_LIB_USER
1157*a1157835SDaniel Fojt
tls_is_pin_error(unsigned int err)1158*a1157835SDaniel Fojt static int tls_is_pin_error(unsigned int err)
1159*a1157835SDaniel Fojt {
1160*a1157835SDaniel Fojt return ERR_GET_LIB(err) == ERR_LIB_PKCS11 &&
1161*a1157835SDaniel Fojt (ERR_GET_REASON(err) == CKR_PIN_INCORRECT ||
1162*a1157835SDaniel Fojt ERR_GET_REASON(err) == CKR_PIN_INVALID ||
1163*a1157835SDaniel Fojt ERR_GET_REASON(err) == CKR_PIN_LEN_RANGE);
1164*a1157835SDaniel Fojt }
1165*a1157835SDaniel Fojt
1166*a1157835SDaniel Fojt #endif /* OPENSSL_NO_ENGINE */
1167*a1157835SDaniel Fojt
1168*a1157835SDaniel Fojt
1169*a1157835SDaniel Fojt #ifdef ANDROID
1170*a1157835SDaniel Fojt /* EVP_PKEY_from_keystore comes from system/security/keystore-engine. */
1171*a1157835SDaniel Fojt EVP_PKEY * EVP_PKEY_from_keystore(const char *key_id);
1172*a1157835SDaniel Fojt #endif /* ANDROID */
1173*a1157835SDaniel Fojt
tls_engine_init(struct tls_connection * conn,const char * engine_id,const char * pin,const char * key_id,const char * cert_id,const char * ca_cert_id)11746d49e1aeSJan Lentfer static int tls_engine_init(struct tls_connection *conn, const char *engine_id,
11756d49e1aeSJan Lentfer const char *pin, const char *key_id,
11766d49e1aeSJan Lentfer const char *cert_id, const char *ca_cert_id)
11776d49e1aeSJan Lentfer {
1178*a1157835SDaniel Fojt #if defined(ANDROID) && defined(OPENSSL_IS_BORINGSSL)
1179*a1157835SDaniel Fojt #if !defined(OPENSSL_NO_ENGINE)
1180*a1157835SDaniel Fojt #error "This code depends on OPENSSL_NO_ENGINE being defined by BoringSSL."
1181*a1157835SDaniel Fojt #endif
1182*a1157835SDaniel Fojt if (!key_id)
1183*a1157835SDaniel Fojt return TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
1184*a1157835SDaniel Fojt conn->engine = NULL;
1185*a1157835SDaniel Fojt conn->private_key = EVP_PKEY_from_keystore(key_id);
1186*a1157835SDaniel Fojt if (!conn->private_key) {
1187*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1188*a1157835SDaniel Fojt "ENGINE: cannot load private key with id '%s' [%s]",
1189*a1157835SDaniel Fojt key_id,
1190*a1157835SDaniel Fojt ERR_error_string(ERR_get_error(), NULL));
1191*a1157835SDaniel Fojt return TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
1192*a1157835SDaniel Fojt }
1193*a1157835SDaniel Fojt #endif /* ANDROID && OPENSSL_IS_BORINGSSL */
1194*a1157835SDaniel Fojt
11956d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
11966d49e1aeSJan Lentfer int ret = -1;
11976d49e1aeSJan Lentfer if (engine_id == NULL) {
11986d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: Engine ID not set");
11996d49e1aeSJan Lentfer return -1;
12006d49e1aeSJan Lentfer }
12016d49e1aeSJan Lentfer
12026d49e1aeSJan Lentfer ERR_clear_error();
12033ff40c12SJohn Marino #ifdef ANDROID
12043ff40c12SJohn Marino ENGINE_load_dynamic();
12053ff40c12SJohn Marino #endif
12066d49e1aeSJan Lentfer conn->engine = ENGINE_by_id(engine_id);
12076d49e1aeSJan Lentfer if (!conn->engine) {
12086d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: engine %s not available [%s]",
12096d49e1aeSJan Lentfer engine_id, ERR_error_string(ERR_get_error(), NULL));
12106d49e1aeSJan Lentfer goto err;
12116d49e1aeSJan Lentfer }
12126d49e1aeSJan Lentfer if (ENGINE_init(conn->engine) != 1) {
12136d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: engine init failed "
12146d49e1aeSJan Lentfer "(engine: %s) [%s]", engine_id,
12156d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
12166d49e1aeSJan Lentfer goto err;
12176d49e1aeSJan Lentfer }
12186d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: engine initialized");
12196d49e1aeSJan Lentfer
12203ff40c12SJohn Marino #ifndef ANDROID
1221*a1157835SDaniel Fojt if (pin && ENGINE_ctrl_cmd_string(conn->engine, "PIN", pin, 0) == 0) {
12226d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: cannot set pin [%s]",
12236d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
12246d49e1aeSJan Lentfer goto err;
12256d49e1aeSJan Lentfer }
12263ff40c12SJohn Marino #endif
1227*a1157835SDaniel Fojt if (key_id) {
1228*a1157835SDaniel Fojt /*
1229*a1157835SDaniel Fojt * Ensure that the ENGINE does not attempt to use the OpenSSL
1230*a1157835SDaniel Fojt * UI system to obtain a PIN, if we didn't provide one.
1231*a1157835SDaniel Fojt */
1232*a1157835SDaniel Fojt struct {
1233*a1157835SDaniel Fojt const void *password;
1234*a1157835SDaniel Fojt const char *prompt_info;
1235*a1157835SDaniel Fojt } key_cb = { "", NULL };
1236*a1157835SDaniel Fojt
12376d49e1aeSJan Lentfer /* load private key first in-case PIN is required for cert */
12386d49e1aeSJan Lentfer conn->private_key = ENGINE_load_private_key(conn->engine,
1239*a1157835SDaniel Fojt key_id, NULL,
1240*a1157835SDaniel Fojt &key_cb);
12416d49e1aeSJan Lentfer if (!conn->private_key) {
1242*a1157835SDaniel Fojt unsigned long err = ERR_get_error();
1243*a1157835SDaniel Fojt
1244*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1245*a1157835SDaniel Fojt "ENGINE: cannot load private key with id '%s' [%s]",
1246*a1157835SDaniel Fojt key_id,
1247*a1157835SDaniel Fojt ERR_error_string(err, NULL));
1248*a1157835SDaniel Fojt if (tls_is_pin_error(err))
1249*a1157835SDaniel Fojt ret = TLS_SET_PARAMS_ENGINE_PRV_BAD_PIN;
1250*a1157835SDaniel Fojt else
12516d49e1aeSJan Lentfer ret = TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
12526d49e1aeSJan Lentfer goto err;
12536d49e1aeSJan Lentfer }
1254*a1157835SDaniel Fojt }
12556d49e1aeSJan Lentfer
12566d49e1aeSJan Lentfer /* handle a certificate and/or CA certificate */
12576d49e1aeSJan Lentfer if (cert_id || ca_cert_id) {
12586d49e1aeSJan Lentfer const char *cmd_name = "LOAD_CERT_CTRL";
12596d49e1aeSJan Lentfer
12606d49e1aeSJan Lentfer /* test if the engine supports a LOAD_CERT_CTRL */
12616d49e1aeSJan Lentfer if (!ENGINE_ctrl(conn->engine, ENGINE_CTRL_GET_CMD_FROM_NAME,
12626d49e1aeSJan Lentfer 0, (void *)cmd_name, NULL)) {
12636d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: engine does not support"
12646d49e1aeSJan Lentfer " loading certificates");
12656d49e1aeSJan Lentfer ret = TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
12666d49e1aeSJan Lentfer goto err;
12676d49e1aeSJan Lentfer }
12686d49e1aeSJan Lentfer }
12696d49e1aeSJan Lentfer
12706d49e1aeSJan Lentfer return 0;
12716d49e1aeSJan Lentfer
12726d49e1aeSJan Lentfer err:
12736d49e1aeSJan Lentfer if (conn->engine) {
12746d49e1aeSJan Lentfer ENGINE_free(conn->engine);
12756d49e1aeSJan Lentfer conn->engine = NULL;
12766d49e1aeSJan Lentfer }
12776d49e1aeSJan Lentfer
12786d49e1aeSJan Lentfer if (conn->private_key) {
12796d49e1aeSJan Lentfer EVP_PKEY_free(conn->private_key);
12806d49e1aeSJan Lentfer conn->private_key = NULL;
12816d49e1aeSJan Lentfer }
12826d49e1aeSJan Lentfer
12836d49e1aeSJan Lentfer return ret;
12846d49e1aeSJan Lentfer #else /* OPENSSL_NO_ENGINE */
12856d49e1aeSJan Lentfer return 0;
12866d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
12876d49e1aeSJan Lentfer }
12886d49e1aeSJan Lentfer
12896d49e1aeSJan Lentfer
tls_engine_deinit(struct tls_connection * conn)12906d49e1aeSJan Lentfer static void tls_engine_deinit(struct tls_connection *conn)
12916d49e1aeSJan Lentfer {
1292*a1157835SDaniel Fojt #if defined(ANDROID) || !defined(OPENSSL_NO_ENGINE)
12936d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: engine deinit");
12946d49e1aeSJan Lentfer if (conn->private_key) {
12956d49e1aeSJan Lentfer EVP_PKEY_free(conn->private_key);
12966d49e1aeSJan Lentfer conn->private_key = NULL;
12976d49e1aeSJan Lentfer }
12986d49e1aeSJan Lentfer if (conn->engine) {
1299*a1157835SDaniel Fojt #if !defined(OPENSSL_IS_BORINGSSL)
13006d49e1aeSJan Lentfer ENGINE_finish(conn->engine);
1301*a1157835SDaniel Fojt #endif /* !OPENSSL_IS_BORINGSSL */
13026d49e1aeSJan Lentfer conn->engine = NULL;
13036d49e1aeSJan Lentfer }
1304*a1157835SDaniel Fojt #endif /* ANDROID || !OPENSSL_NO_ENGINE */
13056d49e1aeSJan Lentfer }
13066d49e1aeSJan Lentfer
13076d49e1aeSJan Lentfer
tls_get_errors(void * ssl_ctx)13086d49e1aeSJan Lentfer int tls_get_errors(void *ssl_ctx)
13096d49e1aeSJan Lentfer {
13106d49e1aeSJan Lentfer int count = 0;
13116d49e1aeSJan Lentfer unsigned long err;
13126d49e1aeSJan Lentfer
13136d49e1aeSJan Lentfer while ((err = ERR_get_error())) {
13146d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS - SSL error: %s",
13156d49e1aeSJan Lentfer ERR_error_string(err, NULL));
13166d49e1aeSJan Lentfer count++;
13176d49e1aeSJan Lentfer }
13186d49e1aeSJan Lentfer
13196d49e1aeSJan Lentfer return count;
13206d49e1aeSJan Lentfer }
13216d49e1aeSJan Lentfer
1322*a1157835SDaniel Fojt
openssl_content_type(int content_type)1323*a1157835SDaniel Fojt static const char * openssl_content_type(int content_type)
1324*a1157835SDaniel Fojt {
1325*a1157835SDaniel Fojt switch (content_type) {
1326*a1157835SDaniel Fojt case 20:
1327*a1157835SDaniel Fojt return "change cipher spec";
1328*a1157835SDaniel Fojt case 21:
1329*a1157835SDaniel Fojt return "alert";
1330*a1157835SDaniel Fojt case 22:
1331*a1157835SDaniel Fojt return "handshake";
1332*a1157835SDaniel Fojt case 23:
1333*a1157835SDaniel Fojt return "application data";
1334*a1157835SDaniel Fojt case 24:
1335*a1157835SDaniel Fojt return "heartbeat";
1336*a1157835SDaniel Fojt case 256:
1337*a1157835SDaniel Fojt return "TLS header info"; /* pseudo content type */
1338*a1157835SDaniel Fojt case 257:
1339*a1157835SDaniel Fojt return "inner content type"; /* pseudo content type */
1340*a1157835SDaniel Fojt default:
1341*a1157835SDaniel Fojt return "?";
1342*a1157835SDaniel Fojt }
1343*a1157835SDaniel Fojt }
1344*a1157835SDaniel Fojt
1345*a1157835SDaniel Fojt
openssl_handshake_type(int content_type,const u8 * buf,size_t len)1346*a1157835SDaniel Fojt static const char * openssl_handshake_type(int content_type, const u8 *buf,
1347*a1157835SDaniel Fojt size_t len)
1348*a1157835SDaniel Fojt {
1349*a1157835SDaniel Fojt if (content_type == 257 && buf && len == 1)
1350*a1157835SDaniel Fojt return openssl_content_type(buf[0]);
1351*a1157835SDaniel Fojt if (content_type != 22 || !buf || len == 0)
1352*a1157835SDaniel Fojt return "";
1353*a1157835SDaniel Fojt switch (buf[0]) {
1354*a1157835SDaniel Fojt case 0:
1355*a1157835SDaniel Fojt return "hello request";
1356*a1157835SDaniel Fojt case 1:
1357*a1157835SDaniel Fojt return "client hello";
1358*a1157835SDaniel Fojt case 2:
1359*a1157835SDaniel Fojt return "server hello";
1360*a1157835SDaniel Fojt case 3:
1361*a1157835SDaniel Fojt return "hello verify request";
1362*a1157835SDaniel Fojt case 4:
1363*a1157835SDaniel Fojt return "new session ticket";
1364*a1157835SDaniel Fojt case 5:
1365*a1157835SDaniel Fojt return "end of early data";
1366*a1157835SDaniel Fojt case 6:
1367*a1157835SDaniel Fojt return "hello retry request";
1368*a1157835SDaniel Fojt case 8:
1369*a1157835SDaniel Fojt return "encrypted extensions";
1370*a1157835SDaniel Fojt case 11:
1371*a1157835SDaniel Fojt return "certificate";
1372*a1157835SDaniel Fojt case 12:
1373*a1157835SDaniel Fojt return "server key exchange";
1374*a1157835SDaniel Fojt case 13:
1375*a1157835SDaniel Fojt return "certificate request";
1376*a1157835SDaniel Fojt case 14:
1377*a1157835SDaniel Fojt return "server hello done";
1378*a1157835SDaniel Fojt case 15:
1379*a1157835SDaniel Fojt return "certificate verify";
1380*a1157835SDaniel Fojt case 16:
1381*a1157835SDaniel Fojt return "client key exchange";
1382*a1157835SDaniel Fojt case 20:
1383*a1157835SDaniel Fojt return "finished";
1384*a1157835SDaniel Fojt case 21:
1385*a1157835SDaniel Fojt return "certificate url";
1386*a1157835SDaniel Fojt case 22:
1387*a1157835SDaniel Fojt return "certificate status";
1388*a1157835SDaniel Fojt case 23:
1389*a1157835SDaniel Fojt return "supplemental data";
1390*a1157835SDaniel Fojt case 24:
1391*a1157835SDaniel Fojt return "key update";
1392*a1157835SDaniel Fojt case 254:
1393*a1157835SDaniel Fojt return "message hash";
1394*a1157835SDaniel Fojt default:
1395*a1157835SDaniel Fojt return "?";
1396*a1157835SDaniel Fojt }
1397*a1157835SDaniel Fojt }
1398*a1157835SDaniel Fojt
1399*a1157835SDaniel Fojt
1400*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
1401*a1157835SDaniel Fojt
check_server_hello(struct tls_connection * conn,const u8 * pos,const u8 * end)1402*a1157835SDaniel Fojt static void check_server_hello(struct tls_connection *conn,
1403*a1157835SDaniel Fojt const u8 *pos, const u8 *end)
1404*a1157835SDaniel Fojt {
1405*a1157835SDaniel Fojt size_t payload_len, id_len;
1406*a1157835SDaniel Fojt
1407*a1157835SDaniel Fojt /*
1408*a1157835SDaniel Fojt * Parse ServerHello to get the selected cipher suite since OpenSSL does
1409*a1157835SDaniel Fojt * not make it cleanly available during handshake and we need to know
1410*a1157835SDaniel Fojt * whether DHE was selected.
1411*a1157835SDaniel Fojt */
1412*a1157835SDaniel Fojt
1413*a1157835SDaniel Fojt if (end - pos < 3)
1414*a1157835SDaniel Fojt return;
1415*a1157835SDaniel Fojt payload_len = WPA_GET_BE24(pos);
1416*a1157835SDaniel Fojt pos += 3;
1417*a1157835SDaniel Fojt
1418*a1157835SDaniel Fojt if ((size_t) (end - pos) < payload_len)
1419*a1157835SDaniel Fojt return;
1420*a1157835SDaniel Fojt end = pos + payload_len;
1421*a1157835SDaniel Fojt
1422*a1157835SDaniel Fojt /* Skip Version and Random */
1423*a1157835SDaniel Fojt if (end - pos < 2 + SSL3_RANDOM_SIZE)
1424*a1157835SDaniel Fojt return;
1425*a1157835SDaniel Fojt pos += 2 + SSL3_RANDOM_SIZE;
1426*a1157835SDaniel Fojt
1427*a1157835SDaniel Fojt /* Skip Session ID */
1428*a1157835SDaniel Fojt if (end - pos < 1)
1429*a1157835SDaniel Fojt return;
1430*a1157835SDaniel Fojt id_len = *pos++;
1431*a1157835SDaniel Fojt if ((size_t) (end - pos) < id_len)
1432*a1157835SDaniel Fojt return;
1433*a1157835SDaniel Fojt pos += id_len;
1434*a1157835SDaniel Fojt
1435*a1157835SDaniel Fojt if (end - pos < 2)
1436*a1157835SDaniel Fojt return;
1437*a1157835SDaniel Fojt conn->cipher_suite = WPA_GET_BE16(pos);
1438*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Server selected cipher suite 0x%x",
1439*a1157835SDaniel Fojt conn->cipher_suite);
1440*a1157835SDaniel Fojt }
1441*a1157835SDaniel Fojt
1442*a1157835SDaniel Fojt
check_server_key_exchange(SSL * ssl,struct tls_connection * conn,const u8 * pos,const u8 * end)1443*a1157835SDaniel Fojt static void check_server_key_exchange(SSL *ssl, struct tls_connection *conn,
1444*a1157835SDaniel Fojt const u8 *pos, const u8 *end)
1445*a1157835SDaniel Fojt {
1446*a1157835SDaniel Fojt size_t payload_len;
1447*a1157835SDaniel Fojt u16 dh_len;
1448*a1157835SDaniel Fojt BIGNUM *p;
1449*a1157835SDaniel Fojt int bits;
1450*a1157835SDaniel Fojt
1451*a1157835SDaniel Fojt if (!(conn->flags & TLS_CONN_SUITEB))
1452*a1157835SDaniel Fojt return;
1453*a1157835SDaniel Fojt
1454*a1157835SDaniel Fojt /* DHE is enabled only with DHE-RSA-AES256-GCM-SHA384 */
1455*a1157835SDaniel Fojt if (conn->cipher_suite != 0x9f)
1456*a1157835SDaniel Fojt return;
1457*a1157835SDaniel Fojt
1458*a1157835SDaniel Fojt if (end - pos < 3)
1459*a1157835SDaniel Fojt return;
1460*a1157835SDaniel Fojt payload_len = WPA_GET_BE24(pos);
1461*a1157835SDaniel Fojt pos += 3;
1462*a1157835SDaniel Fojt
1463*a1157835SDaniel Fojt if ((size_t) (end - pos) < payload_len)
1464*a1157835SDaniel Fojt return;
1465*a1157835SDaniel Fojt end = pos + payload_len;
1466*a1157835SDaniel Fojt
1467*a1157835SDaniel Fojt if (end - pos < 2)
1468*a1157835SDaniel Fojt return;
1469*a1157835SDaniel Fojt dh_len = WPA_GET_BE16(pos);
1470*a1157835SDaniel Fojt pos += 2;
1471*a1157835SDaniel Fojt
1472*a1157835SDaniel Fojt if ((size_t) (end - pos) < dh_len)
1473*a1157835SDaniel Fojt return;
1474*a1157835SDaniel Fojt p = BN_bin2bn(pos, dh_len, NULL);
1475*a1157835SDaniel Fojt if (!p)
1476*a1157835SDaniel Fojt return;
1477*a1157835SDaniel Fojt
1478*a1157835SDaniel Fojt bits = BN_num_bits(p);
1479*a1157835SDaniel Fojt BN_free(p);
1480*a1157835SDaniel Fojt
1481*a1157835SDaniel Fojt conn->server_dh_prime_len = bits;
1482*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Server DH prime length: %d bits",
1483*a1157835SDaniel Fojt conn->server_dh_prime_len);
1484*a1157835SDaniel Fojt }
1485*a1157835SDaniel Fojt
1486*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
1487*a1157835SDaniel Fojt
1488*a1157835SDaniel Fojt
tls_msg_cb(int write_p,int version,int content_type,const void * buf,size_t len,SSL * ssl,void * arg)1489*a1157835SDaniel Fojt static void tls_msg_cb(int write_p, int version, int content_type,
1490*a1157835SDaniel Fojt const void *buf, size_t len, SSL *ssl, void *arg)
1491*a1157835SDaniel Fojt {
1492*a1157835SDaniel Fojt struct tls_connection *conn = arg;
1493*a1157835SDaniel Fojt const u8 *pos = buf;
1494*a1157835SDaniel Fojt
1495*a1157835SDaniel Fojt if (write_p == 2) {
1496*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
1497*a1157835SDaniel Fojt "OpenSSL: session ver=0x%x content_type=%d",
1498*a1157835SDaniel Fojt version, content_type);
1499*a1157835SDaniel Fojt wpa_hexdump_key(MSG_MSGDUMP, "OpenSSL: Data", buf, len);
1500*a1157835SDaniel Fojt return;
1501*a1157835SDaniel Fojt }
1502*a1157835SDaniel Fojt
1503*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: %s ver=0x%x content_type=%d (%s/%s)",
1504*a1157835SDaniel Fojt write_p ? "TX" : "RX", version, content_type,
1505*a1157835SDaniel Fojt openssl_content_type(content_type),
1506*a1157835SDaniel Fojt openssl_handshake_type(content_type, buf, len));
1507*a1157835SDaniel Fojt wpa_hexdump_key(MSG_MSGDUMP, "OpenSSL: Message", buf, len);
1508*a1157835SDaniel Fojt if (content_type == 24 && len >= 3 && pos[0] == 1) {
1509*a1157835SDaniel Fojt size_t payload_len = WPA_GET_BE16(pos + 1);
1510*a1157835SDaniel Fojt if (payload_len + 3 > len) {
1511*a1157835SDaniel Fojt wpa_printf(MSG_ERROR, "OpenSSL: Heartbeat attack detected");
1512*a1157835SDaniel Fojt conn->invalid_hb_used = 1;
1513*a1157835SDaniel Fojt }
1514*a1157835SDaniel Fojt }
1515*a1157835SDaniel Fojt
1516*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
1517*a1157835SDaniel Fojt /*
1518*a1157835SDaniel Fojt * Need to parse these handshake messages to be able to check DH prime
1519*a1157835SDaniel Fojt * length since OpenSSL does not expose the new cipher suite and DH
1520*a1157835SDaniel Fojt * parameters during handshake (e.g., for cert_cb() callback).
1521*a1157835SDaniel Fojt */
1522*a1157835SDaniel Fojt if (content_type == 22 && pos && len > 0 && pos[0] == 2)
1523*a1157835SDaniel Fojt check_server_hello(conn, pos + 1, pos + len);
1524*a1157835SDaniel Fojt if (content_type == 22 && pos && len > 0 && pos[0] == 12)
1525*a1157835SDaniel Fojt check_server_key_exchange(ssl, conn, pos + 1, pos + len);
1526*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
1527*a1157835SDaniel Fojt }
1528*a1157835SDaniel Fojt
1529*a1157835SDaniel Fojt
tls_connection_init(void * ssl_ctx)15306d49e1aeSJan Lentfer struct tls_connection * tls_connection_init(void *ssl_ctx)
15316d49e1aeSJan Lentfer {
1532*a1157835SDaniel Fojt struct tls_data *data = ssl_ctx;
1533*a1157835SDaniel Fojt SSL_CTX *ssl = data->ssl;
15346d49e1aeSJan Lentfer struct tls_connection *conn;
15356d49e1aeSJan Lentfer long options;
1536*a1157835SDaniel Fojt X509_STORE *new_cert_store;
1537*a1157835SDaniel Fojt struct os_reltime now;
1538*a1157835SDaniel Fojt struct tls_context *context = SSL_CTX_get_app_data(ssl);
1539*a1157835SDaniel Fojt
1540*a1157835SDaniel Fojt /* Replace X509 store if it is time to update CRL. */
1541*a1157835SDaniel Fojt if (data->crl_reload_interval > 0 && os_get_reltime(&now) == 0 &&
1542*a1157835SDaniel Fojt os_reltime_expired(&now, &data->crl_last_reload,
1543*a1157835SDaniel Fojt data->crl_reload_interval)) {
1544*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
1545*a1157835SDaniel Fojt "OpenSSL: Flushing X509 store with ca_cert file");
1546*a1157835SDaniel Fojt new_cert_store = tls_crl_cert_reload(data->ca_cert,
1547*a1157835SDaniel Fojt data->check_crl);
1548*a1157835SDaniel Fojt if (!new_cert_store) {
1549*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1550*a1157835SDaniel Fojt "OpenSSL: Error replacing X509 store with ca_cert file");
1551*a1157835SDaniel Fojt } else {
1552*a1157835SDaniel Fojt /* Replace old store */
1553*a1157835SDaniel Fojt SSL_CTX_set_cert_store(ssl, new_cert_store);
1554*a1157835SDaniel Fojt data->crl_last_reload = now;
1555*a1157835SDaniel Fojt }
1556*a1157835SDaniel Fojt }
15576d49e1aeSJan Lentfer
15586d49e1aeSJan Lentfer conn = os_zalloc(sizeof(*conn));
15596d49e1aeSJan Lentfer if (conn == NULL)
15606d49e1aeSJan Lentfer return NULL;
1561*a1157835SDaniel Fojt conn->data = data;
1562*a1157835SDaniel Fojt conn->ssl_ctx = ssl;
15636d49e1aeSJan Lentfer conn->ssl = SSL_new(ssl);
15646d49e1aeSJan Lentfer if (conn->ssl == NULL) {
15656d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
15666d49e1aeSJan Lentfer "Failed to initialize new SSL connection");
15676d49e1aeSJan Lentfer os_free(conn);
15686d49e1aeSJan Lentfer return NULL;
15696d49e1aeSJan Lentfer }
15706d49e1aeSJan Lentfer
15713ff40c12SJohn Marino conn->context = context;
15726d49e1aeSJan Lentfer SSL_set_app_data(conn->ssl, conn);
1573*a1157835SDaniel Fojt SSL_set_msg_callback(conn->ssl, tls_msg_cb);
1574*a1157835SDaniel Fojt SSL_set_msg_callback_arg(conn->ssl, conn);
15756d49e1aeSJan Lentfer options = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 |
15766d49e1aeSJan Lentfer SSL_OP_SINGLE_DH_USE;
15776d49e1aeSJan Lentfer #ifdef SSL_OP_NO_COMPRESSION
15786d49e1aeSJan Lentfer options |= SSL_OP_NO_COMPRESSION;
15796d49e1aeSJan Lentfer #endif /* SSL_OP_NO_COMPRESSION */
15806d49e1aeSJan Lentfer SSL_set_options(conn->ssl, options);
1581*a1157835SDaniel Fojt #ifdef SSL_OP_ENABLE_MIDDLEBOX_COMPAT
1582*a1157835SDaniel Fojt /* Hopefully there is no need for middlebox compatibility mechanisms
1583*a1157835SDaniel Fojt * when going through EAP authentication. */
1584*a1157835SDaniel Fojt SSL_clear_options(conn->ssl, SSL_OP_ENABLE_MIDDLEBOX_COMPAT);
1585*a1157835SDaniel Fojt #endif
15866d49e1aeSJan Lentfer
15876d49e1aeSJan Lentfer conn->ssl_in = BIO_new(BIO_s_mem());
15886d49e1aeSJan Lentfer if (!conn->ssl_in) {
15896d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
15906d49e1aeSJan Lentfer "Failed to create a new BIO for ssl_in");
15916d49e1aeSJan Lentfer SSL_free(conn->ssl);
15926d49e1aeSJan Lentfer os_free(conn);
15936d49e1aeSJan Lentfer return NULL;
15946d49e1aeSJan Lentfer }
15956d49e1aeSJan Lentfer
15966d49e1aeSJan Lentfer conn->ssl_out = BIO_new(BIO_s_mem());
15976d49e1aeSJan Lentfer if (!conn->ssl_out) {
15986d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
15996d49e1aeSJan Lentfer "Failed to create a new BIO for ssl_out");
16006d49e1aeSJan Lentfer SSL_free(conn->ssl);
16016d49e1aeSJan Lentfer BIO_free(conn->ssl_in);
16026d49e1aeSJan Lentfer os_free(conn);
16036d49e1aeSJan Lentfer return NULL;
16046d49e1aeSJan Lentfer }
16056d49e1aeSJan Lentfer
16066d49e1aeSJan Lentfer SSL_set_bio(conn->ssl, conn->ssl_in, conn->ssl_out);
16076d49e1aeSJan Lentfer
16086d49e1aeSJan Lentfer return conn;
16096d49e1aeSJan Lentfer }
16106d49e1aeSJan Lentfer
16116d49e1aeSJan Lentfer
tls_connection_deinit(void * ssl_ctx,struct tls_connection * conn)16126d49e1aeSJan Lentfer void tls_connection_deinit(void *ssl_ctx, struct tls_connection *conn)
16136d49e1aeSJan Lentfer {
16146d49e1aeSJan Lentfer if (conn == NULL)
16156d49e1aeSJan Lentfer return;
1616*a1157835SDaniel Fojt if (conn->success_data) {
1617*a1157835SDaniel Fojt /*
1618*a1157835SDaniel Fojt * Make sure ssl_clear_bad_session() does not remove this
1619*a1157835SDaniel Fojt * session.
1620*a1157835SDaniel Fojt */
1621*a1157835SDaniel Fojt SSL_set_quiet_shutdown(conn->ssl, 1);
1622*a1157835SDaniel Fojt SSL_shutdown(conn->ssl);
1623*a1157835SDaniel Fojt }
16246d49e1aeSJan Lentfer SSL_free(conn->ssl);
16256d49e1aeSJan Lentfer tls_engine_deinit(conn);
16266d49e1aeSJan Lentfer os_free(conn->subject_match);
16276d49e1aeSJan Lentfer os_free(conn->altsubject_match);
16283ff40c12SJohn Marino os_free(conn->suffix_match);
1629*a1157835SDaniel Fojt os_free(conn->domain_match);
1630*a1157835SDaniel Fojt os_free(conn->check_cert_subject);
16316d49e1aeSJan Lentfer os_free(conn->session_ticket);
16326d49e1aeSJan Lentfer os_free(conn);
16336d49e1aeSJan Lentfer }
16346d49e1aeSJan Lentfer
16356d49e1aeSJan Lentfer
tls_connection_established(void * ssl_ctx,struct tls_connection * conn)16366d49e1aeSJan Lentfer int tls_connection_established(void *ssl_ctx, struct tls_connection *conn)
16376d49e1aeSJan Lentfer {
16386d49e1aeSJan Lentfer return conn ? SSL_is_init_finished(conn->ssl) : 0;
16396d49e1aeSJan Lentfer }
16406d49e1aeSJan Lentfer
16416d49e1aeSJan Lentfer
tls_connection_peer_serial_num(void * tls_ctx,struct tls_connection * conn)1642*a1157835SDaniel Fojt char * tls_connection_peer_serial_num(void *tls_ctx,
1643*a1157835SDaniel Fojt struct tls_connection *conn)
1644*a1157835SDaniel Fojt {
1645*a1157835SDaniel Fojt ASN1_INTEGER *ser;
1646*a1157835SDaniel Fojt char *serial_num;
1647*a1157835SDaniel Fojt size_t len;
1648*a1157835SDaniel Fojt
1649*a1157835SDaniel Fojt if (!conn->peer_cert)
1650*a1157835SDaniel Fojt return NULL;
1651*a1157835SDaniel Fojt
1652*a1157835SDaniel Fojt ser = X509_get_serialNumber(conn->peer_cert);
1653*a1157835SDaniel Fojt if (!ser)
1654*a1157835SDaniel Fojt return NULL;
1655*a1157835SDaniel Fojt
1656*a1157835SDaniel Fojt len = ASN1_STRING_length(ser) * 2 + 1;
1657*a1157835SDaniel Fojt serial_num = os_malloc(len);
1658*a1157835SDaniel Fojt if (!serial_num)
1659*a1157835SDaniel Fojt return NULL;
1660*a1157835SDaniel Fojt wpa_snprintf_hex_uppercase(serial_num, len,
1661*a1157835SDaniel Fojt ASN1_STRING_get0_data(ser),
1662*a1157835SDaniel Fojt ASN1_STRING_length(ser));
1663*a1157835SDaniel Fojt return serial_num;
1664*a1157835SDaniel Fojt }
1665*a1157835SDaniel Fojt
1666*a1157835SDaniel Fojt
tls_connection_shutdown(void * ssl_ctx,struct tls_connection * conn)16676d49e1aeSJan Lentfer int tls_connection_shutdown(void *ssl_ctx, struct tls_connection *conn)
16686d49e1aeSJan Lentfer {
16696d49e1aeSJan Lentfer if (conn == NULL)
16706d49e1aeSJan Lentfer return -1;
16716d49e1aeSJan Lentfer
16726d49e1aeSJan Lentfer /* Shutdown previous TLS connection without notifying the peer
16736d49e1aeSJan Lentfer * because the connection was already terminated in practice
16746d49e1aeSJan Lentfer * and "close notify" shutdown alert would confuse AS. */
16756d49e1aeSJan Lentfer SSL_set_quiet_shutdown(conn->ssl, 1);
16766d49e1aeSJan Lentfer SSL_shutdown(conn->ssl);
1677*a1157835SDaniel Fojt return SSL_clear(conn->ssl) == 1 ? 0 : -1;
16786d49e1aeSJan Lentfer }
16796d49e1aeSJan Lentfer
16806d49e1aeSJan Lentfer
tls_match_altsubject_component(X509 * cert,int type,const char * value,size_t len)16816d49e1aeSJan Lentfer static int tls_match_altsubject_component(X509 *cert, int type,
16826d49e1aeSJan Lentfer const char *value, size_t len)
16836d49e1aeSJan Lentfer {
16846d49e1aeSJan Lentfer GENERAL_NAME *gen;
16856d49e1aeSJan Lentfer void *ext;
1686*a1157835SDaniel Fojt int found = 0;
1687*a1157835SDaniel Fojt stack_index_t i;
16886d49e1aeSJan Lentfer
16896d49e1aeSJan Lentfer ext = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
16906d49e1aeSJan Lentfer
16916d49e1aeSJan Lentfer for (i = 0; ext && i < sk_GENERAL_NAME_num(ext); i++) {
16926d49e1aeSJan Lentfer gen = sk_GENERAL_NAME_value(ext, i);
16936d49e1aeSJan Lentfer if (gen->type != type)
16946d49e1aeSJan Lentfer continue;
16956d49e1aeSJan Lentfer if (os_strlen((char *) gen->d.ia5->data) == len &&
16966d49e1aeSJan Lentfer os_memcmp(value, gen->d.ia5->data, len) == 0)
16976d49e1aeSJan Lentfer found++;
16986d49e1aeSJan Lentfer }
16996d49e1aeSJan Lentfer
1700*a1157835SDaniel Fojt sk_GENERAL_NAME_pop_free(ext, GENERAL_NAME_free);
1701*a1157835SDaniel Fojt
17026d49e1aeSJan Lentfer return found;
17036d49e1aeSJan Lentfer }
17046d49e1aeSJan Lentfer
17056d49e1aeSJan Lentfer
tls_match_altsubject(X509 * cert,const char * match)17066d49e1aeSJan Lentfer static int tls_match_altsubject(X509 *cert, const char *match)
17076d49e1aeSJan Lentfer {
17086d49e1aeSJan Lentfer int type;
17096d49e1aeSJan Lentfer const char *pos, *end;
17106d49e1aeSJan Lentfer size_t len;
17116d49e1aeSJan Lentfer
17126d49e1aeSJan Lentfer pos = match;
17136d49e1aeSJan Lentfer do {
17146d49e1aeSJan Lentfer if (os_strncmp(pos, "EMAIL:", 6) == 0) {
17156d49e1aeSJan Lentfer type = GEN_EMAIL;
17166d49e1aeSJan Lentfer pos += 6;
17176d49e1aeSJan Lentfer } else if (os_strncmp(pos, "DNS:", 4) == 0) {
17186d49e1aeSJan Lentfer type = GEN_DNS;
17196d49e1aeSJan Lentfer pos += 4;
17206d49e1aeSJan Lentfer } else if (os_strncmp(pos, "URI:", 4) == 0) {
17216d49e1aeSJan Lentfer type = GEN_URI;
17226d49e1aeSJan Lentfer pos += 4;
17236d49e1aeSJan Lentfer } else {
17246d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Invalid altSubjectName "
17256d49e1aeSJan Lentfer "match '%s'", pos);
17266d49e1aeSJan Lentfer return 0;
17276d49e1aeSJan Lentfer }
17286d49e1aeSJan Lentfer end = os_strchr(pos, ';');
17296d49e1aeSJan Lentfer while (end) {
17306d49e1aeSJan Lentfer if (os_strncmp(end + 1, "EMAIL:", 6) == 0 ||
17316d49e1aeSJan Lentfer os_strncmp(end + 1, "DNS:", 4) == 0 ||
17326d49e1aeSJan Lentfer os_strncmp(end + 1, "URI:", 4) == 0)
17336d49e1aeSJan Lentfer break;
17346d49e1aeSJan Lentfer end = os_strchr(end + 1, ';');
17356d49e1aeSJan Lentfer }
17366d49e1aeSJan Lentfer if (end)
17376d49e1aeSJan Lentfer len = end - pos;
17386d49e1aeSJan Lentfer else
17396d49e1aeSJan Lentfer len = os_strlen(pos);
17406d49e1aeSJan Lentfer if (tls_match_altsubject_component(cert, type, pos, len) > 0)
17416d49e1aeSJan Lentfer return 1;
17426d49e1aeSJan Lentfer pos = end + 1;
17436d49e1aeSJan Lentfer } while (end);
17446d49e1aeSJan Lentfer
17456d49e1aeSJan Lentfer return 0;
17466d49e1aeSJan Lentfer }
17476d49e1aeSJan Lentfer
17486d49e1aeSJan Lentfer
17493ff40c12SJohn Marino #ifndef CONFIG_NATIVE_WINDOWS
domain_suffix_match(const u8 * val,size_t len,const char * match,size_t match_len,int full)1750*a1157835SDaniel Fojt static int domain_suffix_match(const u8 *val, size_t len, const char *match,
1751*a1157835SDaniel Fojt size_t match_len, int full)
17523ff40c12SJohn Marino {
1753*a1157835SDaniel Fojt size_t i;
17543ff40c12SJohn Marino
17553ff40c12SJohn Marino /* Check for embedded nuls that could mess up suffix matching */
17563ff40c12SJohn Marino for (i = 0; i < len; i++) {
17573ff40c12SJohn Marino if (val[i] == '\0') {
17583ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "TLS: Embedded null in a string - reject");
17593ff40c12SJohn Marino return 0;
17603ff40c12SJohn Marino }
17613ff40c12SJohn Marino }
17623ff40c12SJohn Marino
1763*a1157835SDaniel Fojt if (match_len > len || (full && match_len != len))
17643ff40c12SJohn Marino return 0;
17653ff40c12SJohn Marino
17663ff40c12SJohn Marino if (os_strncasecmp((const char *) val + len - match_len, match,
17673ff40c12SJohn Marino match_len) != 0)
17683ff40c12SJohn Marino return 0; /* no match */
17693ff40c12SJohn Marino
17703ff40c12SJohn Marino if (match_len == len)
17713ff40c12SJohn Marino return 1; /* exact match */
17723ff40c12SJohn Marino
17733ff40c12SJohn Marino if (val[len - match_len - 1] == '.')
17743ff40c12SJohn Marino return 1; /* full label match completes suffix match */
17753ff40c12SJohn Marino
17763ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "TLS: Reject due to incomplete label match");
17773ff40c12SJohn Marino return 0;
17783ff40c12SJohn Marino }
17793ff40c12SJohn Marino #endif /* CONFIG_NATIVE_WINDOWS */
17803ff40c12SJohn Marino
17813ff40c12SJohn Marino
1782*a1157835SDaniel Fojt struct tls_dn_field_order_cnt {
1783*a1157835SDaniel Fojt u8 cn;
1784*a1157835SDaniel Fojt u8 c;
1785*a1157835SDaniel Fojt u8 l;
1786*a1157835SDaniel Fojt u8 st;
1787*a1157835SDaniel Fojt u8 o;
1788*a1157835SDaniel Fojt u8 ou;
1789*a1157835SDaniel Fojt u8 email;
1790*a1157835SDaniel Fojt };
1791*a1157835SDaniel Fojt
1792*a1157835SDaniel Fojt
get_dn_field_index(const struct tls_dn_field_order_cnt * dn_cnt,int nid)1793*a1157835SDaniel Fojt static int get_dn_field_index(const struct tls_dn_field_order_cnt *dn_cnt,
1794*a1157835SDaniel Fojt int nid)
17953ff40c12SJohn Marino {
1796*a1157835SDaniel Fojt switch (nid) {
1797*a1157835SDaniel Fojt case NID_commonName:
1798*a1157835SDaniel Fojt return dn_cnt->cn;
1799*a1157835SDaniel Fojt case NID_countryName:
1800*a1157835SDaniel Fojt return dn_cnt->c;
1801*a1157835SDaniel Fojt case NID_localityName:
1802*a1157835SDaniel Fojt return dn_cnt->l;
1803*a1157835SDaniel Fojt case NID_stateOrProvinceName:
1804*a1157835SDaniel Fojt return dn_cnt->st;
1805*a1157835SDaniel Fojt case NID_organizationName:
1806*a1157835SDaniel Fojt return dn_cnt->o;
1807*a1157835SDaniel Fojt case NID_organizationalUnitName:
1808*a1157835SDaniel Fojt return dn_cnt->ou;
1809*a1157835SDaniel Fojt case NID_pkcs9_emailAddress:
1810*a1157835SDaniel Fojt return dn_cnt->email;
1811*a1157835SDaniel Fojt default:
1812*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1813*a1157835SDaniel Fojt "TLS: Unknown NID '%d' in check_cert_subject",
1814*a1157835SDaniel Fojt nid);
18153ff40c12SJohn Marino return -1;
1816*a1157835SDaniel Fojt }
1817*a1157835SDaniel Fojt }
1818*a1157835SDaniel Fojt
1819*a1157835SDaniel Fojt
1820*a1157835SDaniel Fojt /**
1821*a1157835SDaniel Fojt * match_dn_field - Match configuration DN field against Certificate DN field
1822*a1157835SDaniel Fojt * @cert: Certificate
1823*a1157835SDaniel Fojt * @nid: NID of DN field
1824*a1157835SDaniel Fojt * @field: Field name
1825*a1157835SDaniel Fojt * @value DN field value which is passed from configuration
1826*a1157835SDaniel Fojt * e.g., if configuration have C=US and this argument will point to US.
1827*a1157835SDaniel Fojt * @dn_cnt: DN matching context
1828*a1157835SDaniel Fojt * Returns: 1 on success and 0 on failure
1829*a1157835SDaniel Fojt */
match_dn_field(const X509 * cert,int nid,const char * field,const char * value,const struct tls_dn_field_order_cnt * dn_cnt)1830*a1157835SDaniel Fojt static int match_dn_field(const X509 *cert, int nid, const char *field,
1831*a1157835SDaniel Fojt const char *value,
1832*a1157835SDaniel Fojt const struct tls_dn_field_order_cnt *dn_cnt)
1833*a1157835SDaniel Fojt {
1834*a1157835SDaniel Fojt int i, ret = 0, len, config_dn_field_index, match_index = 0;
1835*a1157835SDaniel Fojt X509_NAME *name;
1836*a1157835SDaniel Fojt
1837*a1157835SDaniel Fojt len = os_strlen(value);
1838*a1157835SDaniel Fojt name = X509_get_subject_name((X509 *) cert);
1839*a1157835SDaniel Fojt
1840*a1157835SDaniel Fojt /* Assign incremented cnt for every field of DN to check DN field in
1841*a1157835SDaniel Fojt * right order */
1842*a1157835SDaniel Fojt config_dn_field_index = get_dn_field_index(dn_cnt, nid);
1843*a1157835SDaniel Fojt if (config_dn_field_index < 0)
1844*a1157835SDaniel Fojt return 0;
1845*a1157835SDaniel Fojt
1846*a1157835SDaniel Fojt /* Fetch value based on NID */
1847*a1157835SDaniel Fojt for (i = -1; (i = X509_NAME_get_index_by_NID(name, nid, i)) > -1;) {
1848*a1157835SDaniel Fojt X509_NAME_ENTRY *e;
1849*a1157835SDaniel Fojt ASN1_STRING *cn;
1850*a1157835SDaniel Fojt
1851*a1157835SDaniel Fojt e = X509_NAME_get_entry(name, i);
1852*a1157835SDaniel Fojt if (!e)
1853*a1157835SDaniel Fojt continue;
1854*a1157835SDaniel Fojt
1855*a1157835SDaniel Fojt cn = X509_NAME_ENTRY_get_data(e);
1856*a1157835SDaniel Fojt if (!cn)
1857*a1157835SDaniel Fojt continue;
1858*a1157835SDaniel Fojt
1859*a1157835SDaniel Fojt match_index++;
1860*a1157835SDaniel Fojt
1861*a1157835SDaniel Fojt /* check for more than one DN field with same name */
1862*a1157835SDaniel Fojt if (match_index != config_dn_field_index)
1863*a1157835SDaniel Fojt continue;
1864*a1157835SDaniel Fojt
1865*a1157835SDaniel Fojt /* Check wildcard at the right end side */
1866*a1157835SDaniel Fojt /* E.g., if OU=develop* mentioned in configuration, allow 'OU'
1867*a1157835SDaniel Fojt * of the subject in the client certificate to start with
1868*a1157835SDaniel Fojt * 'develop' */
1869*a1157835SDaniel Fojt if (len > 0 && value[len - 1] == '*') {
1870*a1157835SDaniel Fojt /* Compare actual certificate DN field value with
1871*a1157835SDaniel Fojt * configuration DN field value up to the specified
1872*a1157835SDaniel Fojt * length. */
1873*a1157835SDaniel Fojt ret = ASN1_STRING_length(cn) >= len - 1 &&
1874*a1157835SDaniel Fojt os_memcmp(ASN1_STRING_get0_data(cn), value,
1875*a1157835SDaniel Fojt len - 1) == 0;
1876*a1157835SDaniel Fojt } else {
1877*a1157835SDaniel Fojt /* Compare actual certificate DN field value with
1878*a1157835SDaniel Fojt * configuration DN field value */
1879*a1157835SDaniel Fojt ret = ASN1_STRING_length(cn) == len &&
1880*a1157835SDaniel Fojt os_memcmp(ASN1_STRING_get0_data(cn), value,
1881*a1157835SDaniel Fojt len) == 0;
1882*a1157835SDaniel Fojt }
1883*a1157835SDaniel Fojt if (!ret) {
1884*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1885*a1157835SDaniel Fojt "OpenSSL: Failed to match %s '%s' with certificate DN field value '%s'",
1886*a1157835SDaniel Fojt field, value, ASN1_STRING_get0_data(cn));
1887*a1157835SDaniel Fojt }
1888*a1157835SDaniel Fojt break;
1889*a1157835SDaniel Fojt }
1890*a1157835SDaniel Fojt
1891*a1157835SDaniel Fojt return ret;
1892*a1157835SDaniel Fojt }
1893*a1157835SDaniel Fojt
1894*a1157835SDaniel Fojt
1895*a1157835SDaniel Fojt /**
1896*a1157835SDaniel Fojt * get_value_from_field - Get value from DN field
1897*a1157835SDaniel Fojt * @cert: Certificate
1898*a1157835SDaniel Fojt * @field_str: DN field string which is passed from configuration file (e.g.,
1899*a1157835SDaniel Fojt * C=US)
1900*a1157835SDaniel Fojt * @dn_cnt: DN matching context
1901*a1157835SDaniel Fojt * Returns: 1 on success and 0 on failure
1902*a1157835SDaniel Fojt */
get_value_from_field(const X509 * cert,char * field_str,struct tls_dn_field_order_cnt * dn_cnt)1903*a1157835SDaniel Fojt static int get_value_from_field(const X509 *cert, char *field_str,
1904*a1157835SDaniel Fojt struct tls_dn_field_order_cnt *dn_cnt)
1905*a1157835SDaniel Fojt {
1906*a1157835SDaniel Fojt int nid;
1907*a1157835SDaniel Fojt char *context = NULL, *name, *value;
1908*a1157835SDaniel Fojt
1909*a1157835SDaniel Fojt if (os_strcmp(field_str, "*") == 0)
1910*a1157835SDaniel Fojt return 1; /* wildcard matches everything */
1911*a1157835SDaniel Fojt
1912*a1157835SDaniel Fojt name = str_token(field_str, "=", &context);
1913*a1157835SDaniel Fojt if (!name)
1914*a1157835SDaniel Fojt return 0;
1915*a1157835SDaniel Fojt
1916*a1157835SDaniel Fojt /* Compare all configured DN fields and assign nid based on that to
1917*a1157835SDaniel Fojt * fetch correct value from certificate subject */
1918*a1157835SDaniel Fojt if (os_strcmp(name, "CN") == 0) {
1919*a1157835SDaniel Fojt nid = NID_commonName;
1920*a1157835SDaniel Fojt dn_cnt->cn++;
1921*a1157835SDaniel Fojt } else if(os_strcmp(name, "C") == 0) {
1922*a1157835SDaniel Fojt nid = NID_countryName;
1923*a1157835SDaniel Fojt dn_cnt->c++;
1924*a1157835SDaniel Fojt } else if (os_strcmp(name, "L") == 0) {
1925*a1157835SDaniel Fojt nid = NID_localityName;
1926*a1157835SDaniel Fojt dn_cnt->l++;
1927*a1157835SDaniel Fojt } else if (os_strcmp(name, "ST") == 0) {
1928*a1157835SDaniel Fojt nid = NID_stateOrProvinceName;
1929*a1157835SDaniel Fojt dn_cnt->st++;
1930*a1157835SDaniel Fojt } else if (os_strcmp(name, "O") == 0) {
1931*a1157835SDaniel Fojt nid = NID_organizationName;
1932*a1157835SDaniel Fojt dn_cnt->o++;
1933*a1157835SDaniel Fojt } else if (os_strcmp(name, "OU") == 0) {
1934*a1157835SDaniel Fojt nid = NID_organizationalUnitName;
1935*a1157835SDaniel Fojt dn_cnt->ou++;
1936*a1157835SDaniel Fojt } else if (os_strcmp(name, "emailAddress") == 0) {
1937*a1157835SDaniel Fojt nid = NID_pkcs9_emailAddress;
1938*a1157835SDaniel Fojt dn_cnt->email++;
1939*a1157835SDaniel Fojt } else {
1940*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1941*a1157835SDaniel Fojt "TLS: Unknown field '%s' in check_cert_subject", name);
1942*a1157835SDaniel Fojt return 0;
1943*a1157835SDaniel Fojt }
1944*a1157835SDaniel Fojt
1945*a1157835SDaniel Fojt value = str_token(field_str, "=", &context);
1946*a1157835SDaniel Fojt if (!value) {
1947*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1948*a1157835SDaniel Fojt "TLS: Distinguished Name field '%s' value is not defined in check_cert_subject",
1949*a1157835SDaniel Fojt name);
1950*a1157835SDaniel Fojt return 0;
1951*a1157835SDaniel Fojt }
1952*a1157835SDaniel Fojt
1953*a1157835SDaniel Fojt return match_dn_field(cert, nid, name, value, dn_cnt);
1954*a1157835SDaniel Fojt }
1955*a1157835SDaniel Fojt
1956*a1157835SDaniel Fojt
1957*a1157835SDaniel Fojt /**
1958*a1157835SDaniel Fojt * tls_match_dn_field - Match subject DN field with check_cert_subject
1959*a1157835SDaniel Fojt * @cert: Certificate
1960*a1157835SDaniel Fojt * @match: check_cert_subject string
1961*a1157835SDaniel Fojt * Returns: Return 1 on success and 0 on failure
1962*a1157835SDaniel Fojt */
tls_match_dn_field(X509 * cert,const char * match)1963*a1157835SDaniel Fojt static int tls_match_dn_field(X509 *cert, const char *match)
1964*a1157835SDaniel Fojt {
1965*a1157835SDaniel Fojt const char *token, *last = NULL;
1966*a1157835SDaniel Fojt char field[256];
1967*a1157835SDaniel Fojt struct tls_dn_field_order_cnt dn_cnt;
1968*a1157835SDaniel Fojt
1969*a1157835SDaniel Fojt os_memset(&dn_cnt, 0, sizeof(dn_cnt));
1970*a1157835SDaniel Fojt
1971*a1157835SDaniel Fojt /* Maximum length of each DN field is 255 characters */
1972*a1157835SDaniel Fojt
1973*a1157835SDaniel Fojt /* Process each '/' delimited field */
1974*a1157835SDaniel Fojt while ((token = cstr_token(match, "/", &last))) {
1975*a1157835SDaniel Fojt if (last - token >= (int) sizeof(field)) {
1976*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
1977*a1157835SDaniel Fojt "OpenSSL: Too long DN matching field value in '%s'",
1978*a1157835SDaniel Fojt match);
1979*a1157835SDaniel Fojt return 0;
1980*a1157835SDaniel Fojt }
1981*a1157835SDaniel Fojt os_memcpy(field, token, last - token);
1982*a1157835SDaniel Fojt field[last - token] = '\0';
1983*a1157835SDaniel Fojt
1984*a1157835SDaniel Fojt if (!get_value_from_field(cert, field, &dn_cnt)) {
1985*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: No match for DN '%s'",
1986*a1157835SDaniel Fojt field);
1987*a1157835SDaniel Fojt return 0;
1988*a1157835SDaniel Fojt }
1989*a1157835SDaniel Fojt }
1990*a1157835SDaniel Fojt
1991*a1157835SDaniel Fojt return 1;
1992*a1157835SDaniel Fojt }
1993*a1157835SDaniel Fojt
1994*a1157835SDaniel Fojt
1995*a1157835SDaniel Fojt #ifndef CONFIG_NATIVE_WINDOWS
tls_match_suffix_helper(X509 * cert,const char * match,size_t match_len,int full)1996*a1157835SDaniel Fojt static int tls_match_suffix_helper(X509 *cert, const char *match,
1997*a1157835SDaniel Fojt size_t match_len, int full)
1998*a1157835SDaniel Fojt {
19993ff40c12SJohn Marino GENERAL_NAME *gen;
20003ff40c12SJohn Marino void *ext;
20013ff40c12SJohn Marino int i;
2002*a1157835SDaniel Fojt stack_index_t j;
20033ff40c12SJohn Marino int dns_name = 0;
20043ff40c12SJohn Marino X509_NAME *name;
20053ff40c12SJohn Marino
2006*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "TLS: Match domain against %s%s",
2007*a1157835SDaniel Fojt full ? "": "suffix ", match);
20083ff40c12SJohn Marino
20093ff40c12SJohn Marino ext = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL);
20103ff40c12SJohn Marino
2011*a1157835SDaniel Fojt for (j = 0; ext && j < sk_GENERAL_NAME_num(ext); j++) {
2012*a1157835SDaniel Fojt gen = sk_GENERAL_NAME_value(ext, j);
20133ff40c12SJohn Marino if (gen->type != GEN_DNS)
20143ff40c12SJohn Marino continue;
20153ff40c12SJohn Marino dns_name++;
20163ff40c12SJohn Marino wpa_hexdump_ascii(MSG_DEBUG, "TLS: Certificate dNSName",
20173ff40c12SJohn Marino gen->d.dNSName->data,
20183ff40c12SJohn Marino gen->d.dNSName->length);
20193ff40c12SJohn Marino if (domain_suffix_match(gen->d.dNSName->data,
2020*a1157835SDaniel Fojt gen->d.dNSName->length,
2021*a1157835SDaniel Fojt match, match_len, full) == 1) {
2022*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "TLS: %s in dNSName found",
2023*a1157835SDaniel Fojt full ? "Match" : "Suffix match");
2024*a1157835SDaniel Fojt sk_GENERAL_NAME_pop_free(ext, GENERAL_NAME_free);
20253ff40c12SJohn Marino return 1;
20263ff40c12SJohn Marino }
20273ff40c12SJohn Marino }
2028*a1157835SDaniel Fojt sk_GENERAL_NAME_pop_free(ext, GENERAL_NAME_free);
20293ff40c12SJohn Marino
20303ff40c12SJohn Marino if (dns_name) {
20313ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "TLS: None of the dNSName(s) matched");
20323ff40c12SJohn Marino return 0;
20333ff40c12SJohn Marino }
20343ff40c12SJohn Marino
20353ff40c12SJohn Marino name = X509_get_subject_name(cert);
20363ff40c12SJohn Marino i = -1;
20373ff40c12SJohn Marino for (;;) {
20383ff40c12SJohn Marino X509_NAME_ENTRY *e;
20393ff40c12SJohn Marino ASN1_STRING *cn;
20403ff40c12SJohn Marino
20413ff40c12SJohn Marino i = X509_NAME_get_index_by_NID(name, NID_commonName, i);
20423ff40c12SJohn Marino if (i == -1)
20433ff40c12SJohn Marino break;
20443ff40c12SJohn Marino e = X509_NAME_get_entry(name, i);
20453ff40c12SJohn Marino if (e == NULL)
20463ff40c12SJohn Marino continue;
20473ff40c12SJohn Marino cn = X509_NAME_ENTRY_get_data(e);
20483ff40c12SJohn Marino if (cn == NULL)
20493ff40c12SJohn Marino continue;
20503ff40c12SJohn Marino wpa_hexdump_ascii(MSG_DEBUG, "TLS: Certificate commonName",
20513ff40c12SJohn Marino cn->data, cn->length);
2052*a1157835SDaniel Fojt if (domain_suffix_match(cn->data, cn->length,
2053*a1157835SDaniel Fojt match, match_len, full) == 1) {
2054*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "TLS: %s in commonName found",
2055*a1157835SDaniel Fojt full ? "Match" : "Suffix match");
20563ff40c12SJohn Marino return 1;
20573ff40c12SJohn Marino }
20583ff40c12SJohn Marino }
20593ff40c12SJohn Marino
2060*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "TLS: No CommonName %smatch found",
2061*a1157835SDaniel Fojt full ? "": "suffix ");
2062*a1157835SDaniel Fojt return 0;
2063*a1157835SDaniel Fojt }
2064*a1157835SDaniel Fojt #endif /* CONFIG_NATIVE_WINDOWS */
2065*a1157835SDaniel Fojt
2066*a1157835SDaniel Fojt
tls_match_suffix(X509 * cert,const char * match,int full)2067*a1157835SDaniel Fojt static int tls_match_suffix(X509 *cert, const char *match, int full)
2068*a1157835SDaniel Fojt {
2069*a1157835SDaniel Fojt #ifdef CONFIG_NATIVE_WINDOWS
2070*a1157835SDaniel Fojt /* wincrypt.h has conflicting X509_NAME definition */
2071*a1157835SDaniel Fojt return -1;
2072*a1157835SDaniel Fojt #else /* CONFIG_NATIVE_WINDOWS */
2073*a1157835SDaniel Fojt const char *token, *last = NULL;
2074*a1157835SDaniel Fojt
2075*a1157835SDaniel Fojt /* Process each match alternative separately until a match is found */
2076*a1157835SDaniel Fojt while ((token = cstr_token(match, ";", &last))) {
2077*a1157835SDaniel Fojt if (tls_match_suffix_helper(cert, token, last - token, full))
2078*a1157835SDaniel Fojt return 1;
2079*a1157835SDaniel Fojt }
2080*a1157835SDaniel Fojt
20813ff40c12SJohn Marino return 0;
20823ff40c12SJohn Marino #endif /* CONFIG_NATIVE_WINDOWS */
20833ff40c12SJohn Marino }
20843ff40c12SJohn Marino
20853ff40c12SJohn Marino
openssl_tls_fail_reason(int err)20863ff40c12SJohn Marino static enum tls_fail_reason openssl_tls_fail_reason(int err)
20873ff40c12SJohn Marino {
20883ff40c12SJohn Marino switch (err) {
20893ff40c12SJohn Marino case X509_V_ERR_CERT_REVOKED:
20903ff40c12SJohn Marino return TLS_FAIL_REVOKED;
20913ff40c12SJohn Marino case X509_V_ERR_CERT_NOT_YET_VALID:
20923ff40c12SJohn Marino case X509_V_ERR_CRL_NOT_YET_VALID:
20933ff40c12SJohn Marino return TLS_FAIL_NOT_YET_VALID;
20943ff40c12SJohn Marino case X509_V_ERR_CERT_HAS_EXPIRED:
20953ff40c12SJohn Marino case X509_V_ERR_CRL_HAS_EXPIRED:
20963ff40c12SJohn Marino return TLS_FAIL_EXPIRED;
20973ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
20983ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_GET_CRL:
20993ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER:
21003ff40c12SJohn Marino case X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN:
21013ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY:
21023ff40c12SJohn Marino case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
21033ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE:
21043ff40c12SJohn Marino case X509_V_ERR_CERT_CHAIN_TOO_LONG:
21053ff40c12SJohn Marino case X509_V_ERR_PATH_LENGTH_EXCEEDED:
21063ff40c12SJohn Marino case X509_V_ERR_INVALID_CA:
21073ff40c12SJohn Marino return TLS_FAIL_UNTRUSTED;
21083ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_DECRYPT_CERT_SIGNATURE:
21093ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_DECRYPT_CRL_SIGNATURE:
21103ff40c12SJohn Marino case X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY:
21113ff40c12SJohn Marino case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
21123ff40c12SJohn Marino case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
21133ff40c12SJohn Marino case X509_V_ERR_ERROR_IN_CRL_LAST_UPDATE_FIELD:
21143ff40c12SJohn Marino case X509_V_ERR_ERROR_IN_CRL_NEXT_UPDATE_FIELD:
21153ff40c12SJohn Marino case X509_V_ERR_CERT_UNTRUSTED:
21163ff40c12SJohn Marino case X509_V_ERR_CERT_REJECTED:
21173ff40c12SJohn Marino return TLS_FAIL_BAD_CERTIFICATE;
21183ff40c12SJohn Marino default:
21193ff40c12SJohn Marino return TLS_FAIL_UNSPECIFIED;
21203ff40c12SJohn Marino }
21213ff40c12SJohn Marino }
21223ff40c12SJohn Marino
21233ff40c12SJohn Marino
get_x509_cert(X509 * cert)21243ff40c12SJohn Marino static struct wpabuf * get_x509_cert(X509 *cert)
21253ff40c12SJohn Marino {
21263ff40c12SJohn Marino struct wpabuf *buf;
21273ff40c12SJohn Marino u8 *tmp;
21283ff40c12SJohn Marino
21293ff40c12SJohn Marino int cert_len = i2d_X509(cert, NULL);
21303ff40c12SJohn Marino if (cert_len <= 0)
21313ff40c12SJohn Marino return NULL;
21323ff40c12SJohn Marino
21333ff40c12SJohn Marino buf = wpabuf_alloc(cert_len);
21343ff40c12SJohn Marino if (buf == NULL)
21353ff40c12SJohn Marino return NULL;
21363ff40c12SJohn Marino
21373ff40c12SJohn Marino tmp = wpabuf_put(buf, cert_len);
21383ff40c12SJohn Marino i2d_X509(cert, &tmp);
21393ff40c12SJohn Marino return buf;
21403ff40c12SJohn Marino }
21413ff40c12SJohn Marino
21423ff40c12SJohn Marino
openssl_tls_fail_event(struct tls_connection * conn,X509 * err_cert,int err,int depth,const char * subject,const char * err_str,enum tls_fail_reason reason)21433ff40c12SJohn Marino static void openssl_tls_fail_event(struct tls_connection *conn,
21443ff40c12SJohn Marino X509 *err_cert, int err, int depth,
21453ff40c12SJohn Marino const char *subject, const char *err_str,
21463ff40c12SJohn Marino enum tls_fail_reason reason)
21473ff40c12SJohn Marino {
21483ff40c12SJohn Marino union tls_event_data ev;
21493ff40c12SJohn Marino struct wpabuf *cert = NULL;
21503ff40c12SJohn Marino struct tls_context *context = conn->context;
21513ff40c12SJohn Marino
21523ff40c12SJohn Marino if (context->event_cb == NULL)
21533ff40c12SJohn Marino return;
21543ff40c12SJohn Marino
21553ff40c12SJohn Marino cert = get_x509_cert(err_cert);
21563ff40c12SJohn Marino os_memset(&ev, 0, sizeof(ev));
21573ff40c12SJohn Marino ev.cert_fail.reason = reason != TLS_FAIL_UNSPECIFIED ?
21583ff40c12SJohn Marino reason : openssl_tls_fail_reason(err);
21593ff40c12SJohn Marino ev.cert_fail.depth = depth;
21603ff40c12SJohn Marino ev.cert_fail.subject = subject;
21613ff40c12SJohn Marino ev.cert_fail.reason_txt = err_str;
21623ff40c12SJohn Marino ev.cert_fail.cert = cert;
21633ff40c12SJohn Marino context->event_cb(context->cb_ctx, TLS_CERT_CHAIN_FAILURE, &ev);
21643ff40c12SJohn Marino wpabuf_free(cert);
21653ff40c12SJohn Marino }
21663ff40c12SJohn Marino
21673ff40c12SJohn Marino
openssl_cert_tod(X509 * cert)2168*a1157835SDaniel Fojt static int openssl_cert_tod(X509 *cert)
2169*a1157835SDaniel Fojt {
2170*a1157835SDaniel Fojt CERTIFICATEPOLICIES *ext;
2171*a1157835SDaniel Fojt stack_index_t i;
2172*a1157835SDaniel Fojt char buf[100];
2173*a1157835SDaniel Fojt int res;
2174*a1157835SDaniel Fojt int tod = 0;
2175*a1157835SDaniel Fojt
2176*a1157835SDaniel Fojt ext = X509_get_ext_d2i(cert, NID_certificate_policies, NULL, NULL);
2177*a1157835SDaniel Fojt if (!ext)
2178*a1157835SDaniel Fojt return 0;
2179*a1157835SDaniel Fojt
2180*a1157835SDaniel Fojt for (i = 0; i < sk_POLICYINFO_num(ext); i++) {
2181*a1157835SDaniel Fojt POLICYINFO *policy;
2182*a1157835SDaniel Fojt
2183*a1157835SDaniel Fojt policy = sk_POLICYINFO_value(ext, i);
2184*a1157835SDaniel Fojt res = OBJ_obj2txt(buf, sizeof(buf), policy->policyid, 0);
2185*a1157835SDaniel Fojt if (res < 0 || (size_t) res >= sizeof(buf))
2186*a1157835SDaniel Fojt continue;
2187*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Certificate Policy %s", buf);
2188*a1157835SDaniel Fojt if (os_strcmp(buf, "1.3.6.1.4.1.40808.1.3.1") == 0)
2189*a1157835SDaniel Fojt tod = 1;
2190*a1157835SDaniel Fojt }
2191*a1157835SDaniel Fojt
2192*a1157835SDaniel Fojt return tod;
2193*a1157835SDaniel Fojt }
2194*a1157835SDaniel Fojt
2195*a1157835SDaniel Fojt
openssl_tls_cert_event(struct tls_connection * conn,X509 * err_cert,int depth,const char * subject)21963ff40c12SJohn Marino static void openssl_tls_cert_event(struct tls_connection *conn,
21973ff40c12SJohn Marino X509 *err_cert, int depth,
21983ff40c12SJohn Marino const char *subject)
21993ff40c12SJohn Marino {
22003ff40c12SJohn Marino struct wpabuf *cert = NULL;
22013ff40c12SJohn Marino union tls_event_data ev;
22023ff40c12SJohn Marino struct tls_context *context = conn->context;
2203*a1157835SDaniel Fojt char *altsubject[TLS_MAX_ALT_SUBJECT];
2204*a1157835SDaniel Fojt int alt, num_altsubject = 0;
2205*a1157835SDaniel Fojt GENERAL_NAME *gen;
2206*a1157835SDaniel Fojt void *ext;
2207*a1157835SDaniel Fojt stack_index_t i;
2208*a1157835SDaniel Fojt ASN1_INTEGER *ser;
2209*a1157835SDaniel Fojt char serial_num[128];
22103ff40c12SJohn Marino #ifdef CONFIG_SHA256
22113ff40c12SJohn Marino u8 hash[32];
22123ff40c12SJohn Marino #endif /* CONFIG_SHA256 */
22133ff40c12SJohn Marino
22143ff40c12SJohn Marino if (context->event_cb == NULL)
22153ff40c12SJohn Marino return;
22163ff40c12SJohn Marino
22173ff40c12SJohn Marino os_memset(&ev, 0, sizeof(ev));
2218*a1157835SDaniel Fojt if (conn->cert_probe || (conn->flags & TLS_CONN_EXT_CERT_CHECK) ||
2219*a1157835SDaniel Fojt context->cert_in_cb) {
22203ff40c12SJohn Marino cert = get_x509_cert(err_cert);
22213ff40c12SJohn Marino ev.peer_cert.cert = cert;
22223ff40c12SJohn Marino }
22233ff40c12SJohn Marino #ifdef CONFIG_SHA256
22243ff40c12SJohn Marino if (cert) {
22253ff40c12SJohn Marino const u8 *addr[1];
22263ff40c12SJohn Marino size_t len[1];
22273ff40c12SJohn Marino addr[0] = wpabuf_head(cert);
22283ff40c12SJohn Marino len[0] = wpabuf_len(cert);
22293ff40c12SJohn Marino if (sha256_vector(1, addr, len, hash) == 0) {
22303ff40c12SJohn Marino ev.peer_cert.hash = hash;
22313ff40c12SJohn Marino ev.peer_cert.hash_len = sizeof(hash);
22323ff40c12SJohn Marino }
22333ff40c12SJohn Marino }
22343ff40c12SJohn Marino #endif /* CONFIG_SHA256 */
22353ff40c12SJohn Marino ev.peer_cert.depth = depth;
22363ff40c12SJohn Marino ev.peer_cert.subject = subject;
2237*a1157835SDaniel Fojt
2238*a1157835SDaniel Fojt ser = X509_get_serialNumber(err_cert);
2239*a1157835SDaniel Fojt if (ser) {
2240*a1157835SDaniel Fojt wpa_snprintf_hex_uppercase(serial_num, sizeof(serial_num),
2241*a1157835SDaniel Fojt ASN1_STRING_get0_data(ser),
2242*a1157835SDaniel Fojt ASN1_STRING_length(ser));
2243*a1157835SDaniel Fojt ev.peer_cert.serial_num = serial_num;
2244*a1157835SDaniel Fojt }
2245*a1157835SDaniel Fojt
2246*a1157835SDaniel Fojt ext = X509_get_ext_d2i(err_cert, NID_subject_alt_name, NULL, NULL);
2247*a1157835SDaniel Fojt for (i = 0; ext && i < sk_GENERAL_NAME_num(ext); i++) {
2248*a1157835SDaniel Fojt char *pos;
2249*a1157835SDaniel Fojt
2250*a1157835SDaniel Fojt if (num_altsubject == TLS_MAX_ALT_SUBJECT)
2251*a1157835SDaniel Fojt break;
2252*a1157835SDaniel Fojt gen = sk_GENERAL_NAME_value(ext, i);
2253*a1157835SDaniel Fojt if (gen->type != GEN_EMAIL &&
2254*a1157835SDaniel Fojt gen->type != GEN_DNS &&
2255*a1157835SDaniel Fojt gen->type != GEN_URI)
2256*a1157835SDaniel Fojt continue;
2257*a1157835SDaniel Fojt
2258*a1157835SDaniel Fojt pos = os_malloc(10 + gen->d.ia5->length + 1);
2259*a1157835SDaniel Fojt if (pos == NULL)
2260*a1157835SDaniel Fojt break;
2261*a1157835SDaniel Fojt altsubject[num_altsubject++] = pos;
2262*a1157835SDaniel Fojt
2263*a1157835SDaniel Fojt switch (gen->type) {
2264*a1157835SDaniel Fojt case GEN_EMAIL:
2265*a1157835SDaniel Fojt os_memcpy(pos, "EMAIL:", 6);
2266*a1157835SDaniel Fojt pos += 6;
2267*a1157835SDaniel Fojt break;
2268*a1157835SDaniel Fojt case GEN_DNS:
2269*a1157835SDaniel Fojt os_memcpy(pos, "DNS:", 4);
2270*a1157835SDaniel Fojt pos += 4;
2271*a1157835SDaniel Fojt break;
2272*a1157835SDaniel Fojt case GEN_URI:
2273*a1157835SDaniel Fojt os_memcpy(pos, "URI:", 4);
2274*a1157835SDaniel Fojt pos += 4;
2275*a1157835SDaniel Fojt break;
2276*a1157835SDaniel Fojt }
2277*a1157835SDaniel Fojt
2278*a1157835SDaniel Fojt os_memcpy(pos, gen->d.ia5->data, gen->d.ia5->length);
2279*a1157835SDaniel Fojt pos += gen->d.ia5->length;
2280*a1157835SDaniel Fojt *pos = '\0';
2281*a1157835SDaniel Fojt }
2282*a1157835SDaniel Fojt sk_GENERAL_NAME_pop_free(ext, GENERAL_NAME_free);
2283*a1157835SDaniel Fojt
2284*a1157835SDaniel Fojt for (alt = 0; alt < num_altsubject; alt++)
2285*a1157835SDaniel Fojt ev.peer_cert.altsubject[alt] = altsubject[alt];
2286*a1157835SDaniel Fojt ev.peer_cert.num_altsubject = num_altsubject;
2287*a1157835SDaniel Fojt
2288*a1157835SDaniel Fojt ev.peer_cert.tod = openssl_cert_tod(err_cert);
2289*a1157835SDaniel Fojt
22903ff40c12SJohn Marino context->event_cb(context->cb_ctx, TLS_PEER_CERTIFICATE, &ev);
22913ff40c12SJohn Marino wpabuf_free(cert);
2292*a1157835SDaniel Fojt for (alt = 0; alt < num_altsubject; alt++)
2293*a1157835SDaniel Fojt os_free(altsubject[alt]);
22943ff40c12SJohn Marino }
22953ff40c12SJohn Marino
22963ff40c12SJohn Marino
tls_verify_cb(int preverify_ok,X509_STORE_CTX * x509_ctx)22976d49e1aeSJan Lentfer static int tls_verify_cb(int preverify_ok, X509_STORE_CTX *x509_ctx)
22986d49e1aeSJan Lentfer {
22996d49e1aeSJan Lentfer char buf[256];
23006d49e1aeSJan Lentfer X509 *err_cert;
23016d49e1aeSJan Lentfer int err, depth;
23026d49e1aeSJan Lentfer SSL *ssl;
23036d49e1aeSJan Lentfer struct tls_connection *conn;
23043ff40c12SJohn Marino struct tls_context *context;
2305*a1157835SDaniel Fojt char *match, *altmatch, *suffix_match, *domain_match;
2306*a1157835SDaniel Fojt const char *check_cert_subject;
23073ff40c12SJohn Marino const char *err_str;
23086d49e1aeSJan Lentfer
23096d49e1aeSJan Lentfer err_cert = X509_STORE_CTX_get_current_cert(x509_ctx);
2310*a1157835SDaniel Fojt if (!err_cert)
2311*a1157835SDaniel Fojt return 0;
2312*a1157835SDaniel Fojt
23136d49e1aeSJan Lentfer err = X509_STORE_CTX_get_error(x509_ctx);
23146d49e1aeSJan Lentfer depth = X509_STORE_CTX_get_error_depth(x509_ctx);
23156d49e1aeSJan Lentfer ssl = X509_STORE_CTX_get_ex_data(x509_ctx,
23166d49e1aeSJan Lentfer SSL_get_ex_data_X509_STORE_CTX_idx());
23176d49e1aeSJan Lentfer X509_NAME_oneline(X509_get_subject_name(err_cert), buf, sizeof(buf));
23186d49e1aeSJan Lentfer
23196d49e1aeSJan Lentfer conn = SSL_get_app_data(ssl);
23203ff40c12SJohn Marino if (conn == NULL)
23213ff40c12SJohn Marino return 0;
23223ff40c12SJohn Marino
23233ff40c12SJohn Marino if (depth == 0)
23243ff40c12SJohn Marino conn->peer_cert = err_cert;
23253ff40c12SJohn Marino else if (depth == 1)
23263ff40c12SJohn Marino conn->peer_issuer = err_cert;
23273ff40c12SJohn Marino else if (depth == 2)
23283ff40c12SJohn Marino conn->peer_issuer_issuer = err_cert;
23293ff40c12SJohn Marino
23303ff40c12SJohn Marino context = conn->context;
23313ff40c12SJohn Marino match = conn->subject_match;
23323ff40c12SJohn Marino altmatch = conn->altsubject_match;
23333ff40c12SJohn Marino suffix_match = conn->suffix_match;
2334*a1157835SDaniel Fojt domain_match = conn->domain_match;
23353ff40c12SJohn Marino
23363ff40c12SJohn Marino if (!preverify_ok && !conn->ca_cert_verify)
23373ff40c12SJohn Marino preverify_ok = 1;
23383ff40c12SJohn Marino if (!preverify_ok && depth > 0 && conn->server_cert_only)
23393ff40c12SJohn Marino preverify_ok = 1;
23403ff40c12SJohn Marino if (!preverify_ok && (conn->flags & TLS_CONN_DISABLE_TIME_CHECKS) &&
23413ff40c12SJohn Marino (err == X509_V_ERR_CERT_HAS_EXPIRED ||
23423ff40c12SJohn Marino err == X509_V_ERR_CERT_NOT_YET_VALID)) {
23433ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Ignore certificate validity "
23443ff40c12SJohn Marino "time mismatch");
23453ff40c12SJohn Marino preverify_ok = 1;
23463ff40c12SJohn Marino }
2347*a1157835SDaniel Fojt if (!preverify_ok && !conn->data->check_crl_strict &&
2348*a1157835SDaniel Fojt (err == X509_V_ERR_CRL_HAS_EXPIRED ||
2349*a1157835SDaniel Fojt err == X509_V_ERR_CRL_NOT_YET_VALID)) {
2350*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2351*a1157835SDaniel Fojt "OpenSSL: Ignore certificate validity CRL time mismatch");
2352*a1157835SDaniel Fojt preverify_ok = 1;
2353*a1157835SDaniel Fojt }
23543ff40c12SJohn Marino
23553ff40c12SJohn Marino err_str = X509_verify_cert_error_string(err);
23563ff40c12SJohn Marino
23573ff40c12SJohn Marino #ifdef CONFIG_SHA256
2358*a1157835SDaniel Fojt /*
2359*a1157835SDaniel Fojt * Do not require preverify_ok so we can explicity allow otherwise
2360*a1157835SDaniel Fojt * invalid pinned server certificates.
2361*a1157835SDaniel Fojt */
2362*a1157835SDaniel Fojt if (depth == 0 && conn->server_cert_only) {
23633ff40c12SJohn Marino struct wpabuf *cert;
23643ff40c12SJohn Marino cert = get_x509_cert(err_cert);
23653ff40c12SJohn Marino if (!cert) {
23663ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Could not fetch "
23673ff40c12SJohn Marino "server certificate data");
23683ff40c12SJohn Marino preverify_ok = 0;
23693ff40c12SJohn Marino } else {
23703ff40c12SJohn Marino u8 hash[32];
23713ff40c12SJohn Marino const u8 *addr[1];
23723ff40c12SJohn Marino size_t len[1];
23733ff40c12SJohn Marino addr[0] = wpabuf_head(cert);
23743ff40c12SJohn Marino len[0] = wpabuf_len(cert);
23753ff40c12SJohn Marino if (sha256_vector(1, addr, len, hash) < 0 ||
23763ff40c12SJohn Marino os_memcmp(conn->srv_cert_hash, hash, 32) != 0) {
23773ff40c12SJohn Marino err_str = "Server certificate mismatch";
23783ff40c12SJohn Marino err = X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
23793ff40c12SJohn Marino preverify_ok = 0;
2380*a1157835SDaniel Fojt } else if (!preverify_ok) {
2381*a1157835SDaniel Fojt /*
2382*a1157835SDaniel Fojt * Certificate matches pinned certificate, allow
2383*a1157835SDaniel Fojt * regardless of other problems.
2384*a1157835SDaniel Fojt */
2385*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2386*a1157835SDaniel Fojt "OpenSSL: Ignore validation issues for a pinned server certificate");
2387*a1157835SDaniel Fojt preverify_ok = 1;
23883ff40c12SJohn Marino }
23893ff40c12SJohn Marino wpabuf_free(cert);
23903ff40c12SJohn Marino }
23913ff40c12SJohn Marino }
23923ff40c12SJohn Marino #endif /* CONFIG_SHA256 */
23936d49e1aeSJan Lentfer
2394*a1157835SDaniel Fojt openssl_tls_cert_event(conn, err_cert, depth, buf);
2395*a1157835SDaniel Fojt
23966d49e1aeSJan Lentfer if (!preverify_ok) {
2397*a1157835SDaniel Fojt if (depth > 0) {
2398*a1157835SDaniel Fojt /* Send cert event for the peer certificate so that
2399*a1157835SDaniel Fojt * the upper layers get information about it even if
2400*a1157835SDaniel Fojt * validation of a CA certificate fails. */
2401*a1157835SDaniel Fojt STACK_OF(X509) *chain;
2402*a1157835SDaniel Fojt
2403*a1157835SDaniel Fojt chain = X509_STORE_CTX_get1_chain(x509_ctx);
2404*a1157835SDaniel Fojt if (chain && sk_X509_num(chain) > 0) {
2405*a1157835SDaniel Fojt char buf2[256];
2406*a1157835SDaniel Fojt X509 *cert;
2407*a1157835SDaniel Fojt
2408*a1157835SDaniel Fojt cert = sk_X509_value(chain, 0);
2409*a1157835SDaniel Fojt X509_NAME_oneline(X509_get_subject_name(cert),
2410*a1157835SDaniel Fojt buf2, sizeof(buf2));
2411*a1157835SDaniel Fojt
2412*a1157835SDaniel Fojt openssl_tls_cert_event(conn, cert, 0, buf2);
2413*a1157835SDaniel Fojt }
2414*a1157835SDaniel Fojt if (chain)
2415*a1157835SDaniel Fojt sk_X509_pop_free(chain, X509_free);
2416*a1157835SDaniel Fojt }
2417*a1157835SDaniel Fojt
24186d49e1aeSJan Lentfer wpa_printf(MSG_WARNING, "TLS: Certificate verification failed,"
24193ff40c12SJohn Marino " error %d (%s) depth %d for '%s'", err, err_str,
24203ff40c12SJohn Marino depth, buf);
24213ff40c12SJohn Marino openssl_tls_fail_event(conn, err_cert, err, depth, buf,
24223ff40c12SJohn Marino err_str, TLS_FAIL_UNSPECIFIED);
24233ff40c12SJohn Marino return preverify_ok;
24243ff40c12SJohn Marino }
24253ff40c12SJohn Marino
24263ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "TLS: tls_verify_cb - preverify_ok=%d "
24273ff40c12SJohn Marino "err=%d (%s) ca_cert_verify=%d depth=%d buf='%s'",
24283ff40c12SJohn Marino preverify_ok, err, err_str,
24293ff40c12SJohn Marino conn->ca_cert_verify, depth, buf);
2430*a1157835SDaniel Fojt check_cert_subject = conn->check_cert_subject;
2431*a1157835SDaniel Fojt if (!check_cert_subject)
2432*a1157835SDaniel Fojt check_cert_subject = conn->data->check_cert_subject;
2433*a1157835SDaniel Fojt if (check_cert_subject) {
2434*a1157835SDaniel Fojt if (depth == 0 &&
2435*a1157835SDaniel Fojt !tls_match_dn_field(err_cert, check_cert_subject)) {
2436*a1157835SDaniel Fojt preverify_ok = 0;
2437*a1157835SDaniel Fojt openssl_tls_fail_event(conn, err_cert, err, depth, buf,
2438*a1157835SDaniel Fojt "Distinguished Name",
2439*a1157835SDaniel Fojt TLS_FAIL_DN_MISMATCH);
2440*a1157835SDaniel Fojt }
2441*a1157835SDaniel Fojt }
24426d49e1aeSJan Lentfer if (depth == 0 && match && os_strstr(buf, match) == NULL) {
24436d49e1aeSJan Lentfer wpa_printf(MSG_WARNING, "TLS: Subject '%s' did not "
24446d49e1aeSJan Lentfer "match with '%s'", buf, match);
24456d49e1aeSJan Lentfer preverify_ok = 0;
24463ff40c12SJohn Marino openssl_tls_fail_event(conn, err_cert, err, depth, buf,
24473ff40c12SJohn Marino "Subject mismatch",
24483ff40c12SJohn Marino TLS_FAIL_SUBJECT_MISMATCH);
24496d49e1aeSJan Lentfer } else if (depth == 0 && altmatch &&
24506d49e1aeSJan Lentfer !tls_match_altsubject(err_cert, altmatch)) {
24516d49e1aeSJan Lentfer wpa_printf(MSG_WARNING, "TLS: altSubjectName match "
24526d49e1aeSJan Lentfer "'%s' not found", altmatch);
24536d49e1aeSJan Lentfer preverify_ok = 0;
24543ff40c12SJohn Marino openssl_tls_fail_event(conn, err_cert, err, depth, buf,
24553ff40c12SJohn Marino "AltSubject mismatch",
24563ff40c12SJohn Marino TLS_FAIL_ALTSUBJECT_MISMATCH);
24573ff40c12SJohn Marino } else if (depth == 0 && suffix_match &&
2458*a1157835SDaniel Fojt !tls_match_suffix(err_cert, suffix_match, 0)) {
24593ff40c12SJohn Marino wpa_printf(MSG_WARNING, "TLS: Domain suffix match '%s' not found",
24603ff40c12SJohn Marino suffix_match);
24613ff40c12SJohn Marino preverify_ok = 0;
24623ff40c12SJohn Marino openssl_tls_fail_event(conn, err_cert, err, depth, buf,
24633ff40c12SJohn Marino "Domain suffix mismatch",
24643ff40c12SJohn Marino TLS_FAIL_DOMAIN_SUFFIX_MISMATCH);
2465*a1157835SDaniel Fojt } else if (depth == 0 && domain_match &&
2466*a1157835SDaniel Fojt !tls_match_suffix(err_cert, domain_match, 1)) {
2467*a1157835SDaniel Fojt wpa_printf(MSG_WARNING, "TLS: Domain match '%s' not found",
2468*a1157835SDaniel Fojt domain_match);
2469*a1157835SDaniel Fojt preverify_ok = 0;
2470*a1157835SDaniel Fojt openssl_tls_fail_event(conn, err_cert, err, depth, buf,
2471*a1157835SDaniel Fojt "Domain mismatch",
2472*a1157835SDaniel Fojt TLS_FAIL_DOMAIN_MISMATCH);
2473*a1157835SDaniel Fojt }
24743ff40c12SJohn Marino
24753ff40c12SJohn Marino if (conn->cert_probe && preverify_ok && depth == 0) {
24763ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Reject server certificate "
24773ff40c12SJohn Marino "on probe-only run");
24783ff40c12SJohn Marino preverify_ok = 0;
24793ff40c12SJohn Marino openssl_tls_fail_event(conn, err_cert, err, depth, buf,
24803ff40c12SJohn Marino "Server certificate chain probe",
24813ff40c12SJohn Marino TLS_FAIL_SERVER_CHAIN_PROBE);
24826d49e1aeSJan Lentfer }
24833ff40c12SJohn Marino
2484*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
2485*a1157835SDaniel Fojt if (conn->flags & TLS_CONN_SUITEB) {
2486*a1157835SDaniel Fojt EVP_PKEY *pk;
2487*a1157835SDaniel Fojt RSA *rsa;
2488*a1157835SDaniel Fojt int len = -1;
2489*a1157835SDaniel Fojt
2490*a1157835SDaniel Fojt pk = X509_get_pubkey(err_cert);
2491*a1157835SDaniel Fojt if (pk) {
2492*a1157835SDaniel Fojt rsa = EVP_PKEY_get1_RSA(pk);
2493*a1157835SDaniel Fojt if (rsa) {
2494*a1157835SDaniel Fojt len = RSA_bits(rsa);
2495*a1157835SDaniel Fojt RSA_free(rsa);
2496*a1157835SDaniel Fojt }
2497*a1157835SDaniel Fojt EVP_PKEY_free(pk);
24986d49e1aeSJan Lentfer }
24996d49e1aeSJan Lentfer
2500*a1157835SDaniel Fojt if (len >= 0) {
2501*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2502*a1157835SDaniel Fojt "OpenSSL: RSA modulus size: %d bits", len);
2503*a1157835SDaniel Fojt if (len < 3072) {
2504*a1157835SDaniel Fojt preverify_ok = 0;
2505*a1157835SDaniel Fojt openssl_tls_fail_event(
2506*a1157835SDaniel Fojt conn, err_cert, err,
2507*a1157835SDaniel Fojt depth, buf,
2508*a1157835SDaniel Fojt "Insufficient RSA modulus size",
2509*a1157835SDaniel Fojt TLS_FAIL_INSUFFICIENT_KEY_LEN);
2510*a1157835SDaniel Fojt }
2511*a1157835SDaniel Fojt }
2512*a1157835SDaniel Fojt }
2513*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
2514*a1157835SDaniel Fojt
2515*a1157835SDaniel Fojt #ifdef OPENSSL_IS_BORINGSSL
2516*a1157835SDaniel Fojt if (depth == 0 && (conn->flags & TLS_CONN_REQUEST_OCSP) &&
2517*a1157835SDaniel Fojt preverify_ok) {
2518*a1157835SDaniel Fojt enum ocsp_result res;
2519*a1157835SDaniel Fojt
2520*a1157835SDaniel Fojt res = check_ocsp_resp(conn->ssl_ctx, conn->ssl, err_cert,
2521*a1157835SDaniel Fojt conn->peer_issuer,
2522*a1157835SDaniel Fojt conn->peer_issuer_issuer);
2523*a1157835SDaniel Fojt if (res == OCSP_REVOKED) {
2524*a1157835SDaniel Fojt preverify_ok = 0;
2525*a1157835SDaniel Fojt openssl_tls_fail_event(conn, err_cert, err, depth, buf,
2526*a1157835SDaniel Fojt "certificate revoked",
2527*a1157835SDaniel Fojt TLS_FAIL_REVOKED);
2528*a1157835SDaniel Fojt if (err == X509_V_OK)
2529*a1157835SDaniel Fojt X509_STORE_CTX_set_error(
2530*a1157835SDaniel Fojt x509_ctx, X509_V_ERR_CERT_REVOKED);
2531*a1157835SDaniel Fojt } else if (res != OCSP_GOOD &&
2532*a1157835SDaniel Fojt (conn->flags & TLS_CONN_REQUIRE_OCSP)) {
2533*a1157835SDaniel Fojt preverify_ok = 0;
2534*a1157835SDaniel Fojt openssl_tls_fail_event(conn, err_cert, err, depth, buf,
2535*a1157835SDaniel Fojt "bad certificate status response",
2536*a1157835SDaniel Fojt TLS_FAIL_UNSPECIFIED);
2537*a1157835SDaniel Fojt }
2538*a1157835SDaniel Fojt }
2539*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
2540*a1157835SDaniel Fojt
2541*a1157835SDaniel Fojt if (depth == 0 && preverify_ok && context->event_cb != NULL)
25423ff40c12SJohn Marino context->event_cb(context->cb_ctx,
25433ff40c12SJohn Marino TLS_CERT_CHAIN_SUCCESS, NULL);
25443ff40c12SJohn Marino
25456d49e1aeSJan Lentfer return preverify_ok;
25466d49e1aeSJan Lentfer }
25476d49e1aeSJan Lentfer
25486d49e1aeSJan Lentfer
25496d49e1aeSJan Lentfer #ifndef OPENSSL_NO_STDIO
tls_load_ca_der(struct tls_data * data,const char * ca_cert)2550*a1157835SDaniel Fojt static int tls_load_ca_der(struct tls_data *data, const char *ca_cert)
25516d49e1aeSJan Lentfer {
2552*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
25536d49e1aeSJan Lentfer X509_LOOKUP *lookup;
25546d49e1aeSJan Lentfer int ret = 0;
25556d49e1aeSJan Lentfer
2556*a1157835SDaniel Fojt lookup = X509_STORE_add_lookup(SSL_CTX_get_cert_store(ssl_ctx),
25576d49e1aeSJan Lentfer X509_LOOKUP_file());
25586d49e1aeSJan Lentfer if (lookup == NULL) {
25596d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
25606d49e1aeSJan Lentfer "Failed add lookup for X509 store");
25616d49e1aeSJan Lentfer return -1;
25626d49e1aeSJan Lentfer }
25636d49e1aeSJan Lentfer
25646d49e1aeSJan Lentfer if (!X509_LOOKUP_load_file(lookup, ca_cert, X509_FILETYPE_ASN1)) {
25656d49e1aeSJan Lentfer unsigned long err = ERR_peek_error();
25666d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
25676d49e1aeSJan Lentfer "Failed load CA in DER format");
25686d49e1aeSJan Lentfer if (ERR_GET_LIB(err) == ERR_LIB_X509 &&
25696d49e1aeSJan Lentfer ERR_GET_REASON(err) == X509_R_CERT_ALREADY_IN_HASH_TABLE) {
25706d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - ignoring "
25716d49e1aeSJan Lentfer "cert already in hash table error",
25726d49e1aeSJan Lentfer __func__);
25736d49e1aeSJan Lentfer } else
25746d49e1aeSJan Lentfer ret = -1;
25756d49e1aeSJan Lentfer }
25766d49e1aeSJan Lentfer
25776d49e1aeSJan Lentfer return ret;
25786d49e1aeSJan Lentfer }
25796d49e1aeSJan Lentfer #endif /* OPENSSL_NO_STDIO */
25806d49e1aeSJan Lentfer
25816d49e1aeSJan Lentfer
tls_connection_ca_cert(struct tls_data * data,struct tls_connection * conn,const char * ca_cert,const u8 * ca_cert_blob,size_t ca_cert_blob_len,const char * ca_path)2582*a1157835SDaniel Fojt static int tls_connection_ca_cert(struct tls_data *data,
2583*a1157835SDaniel Fojt struct tls_connection *conn,
25846d49e1aeSJan Lentfer const char *ca_cert, const u8 *ca_cert_blob,
25856d49e1aeSJan Lentfer size_t ca_cert_blob_len, const char *ca_path)
25866d49e1aeSJan Lentfer {
2587*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
2588*a1157835SDaniel Fojt X509_STORE *store;
25896d49e1aeSJan Lentfer
25906d49e1aeSJan Lentfer /*
25916d49e1aeSJan Lentfer * Remove previously configured trusted CA certificates before adding
25926d49e1aeSJan Lentfer * new ones.
25936d49e1aeSJan Lentfer */
2594*a1157835SDaniel Fojt store = X509_STORE_new();
2595*a1157835SDaniel Fojt if (store == NULL) {
25966d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - failed to allocate new "
25976d49e1aeSJan Lentfer "certificate store", __func__);
25986d49e1aeSJan Lentfer return -1;
25996d49e1aeSJan Lentfer }
2600*a1157835SDaniel Fojt SSL_CTX_set_cert_store(ssl_ctx, store);
26016d49e1aeSJan Lentfer
26023ff40c12SJohn Marino SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
26033ff40c12SJohn Marino conn->ca_cert_verify = 1;
26043ff40c12SJohn Marino
26053ff40c12SJohn Marino if (ca_cert && os_strncmp(ca_cert, "probe://", 8) == 0) {
26063ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Probe for server certificate "
26073ff40c12SJohn Marino "chain");
26083ff40c12SJohn Marino conn->cert_probe = 1;
26093ff40c12SJohn Marino conn->ca_cert_verify = 0;
26103ff40c12SJohn Marino return 0;
26113ff40c12SJohn Marino }
26123ff40c12SJohn Marino
26133ff40c12SJohn Marino if (ca_cert && os_strncmp(ca_cert, "hash://", 7) == 0) {
26143ff40c12SJohn Marino #ifdef CONFIG_SHA256
26153ff40c12SJohn Marino const char *pos = ca_cert + 7;
26163ff40c12SJohn Marino if (os_strncmp(pos, "server/sha256/", 14) != 0) {
26173ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Unsupported ca_cert "
26183ff40c12SJohn Marino "hash value '%s'", ca_cert);
26193ff40c12SJohn Marino return -1;
26203ff40c12SJohn Marino }
26213ff40c12SJohn Marino pos += 14;
26223ff40c12SJohn Marino if (os_strlen(pos) != 32 * 2) {
26233ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Unexpected SHA256 "
26243ff40c12SJohn Marino "hash length in ca_cert '%s'", ca_cert);
26253ff40c12SJohn Marino return -1;
26263ff40c12SJohn Marino }
26273ff40c12SJohn Marino if (hexstr2bin(pos, conn->srv_cert_hash, 32) < 0) {
26283ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Invalid SHA256 hash "
26293ff40c12SJohn Marino "value in ca_cert '%s'", ca_cert);
26303ff40c12SJohn Marino return -1;
26313ff40c12SJohn Marino }
26323ff40c12SJohn Marino conn->server_cert_only = 1;
26333ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Checking only server "
26343ff40c12SJohn Marino "certificate match");
26353ff40c12SJohn Marino return 0;
26363ff40c12SJohn Marino #else /* CONFIG_SHA256 */
26373ff40c12SJohn Marino wpa_printf(MSG_INFO, "No SHA256 included in the build - "
26383ff40c12SJohn Marino "cannot validate server certificate hash");
26393ff40c12SJohn Marino return -1;
26403ff40c12SJohn Marino #endif /* CONFIG_SHA256 */
26413ff40c12SJohn Marino }
26423ff40c12SJohn Marino
26436d49e1aeSJan Lentfer if (ca_cert_blob) {
2644*a1157835SDaniel Fojt X509 *cert = d2i_X509(NULL,
2645*a1157835SDaniel Fojt (const unsigned char **) &ca_cert_blob,
26466d49e1aeSJan Lentfer ca_cert_blob_len);
26476d49e1aeSJan Lentfer if (cert == NULL) {
2648*a1157835SDaniel Fojt BIO *bio = BIO_new_mem_buf(ca_cert_blob,
2649*a1157835SDaniel Fojt ca_cert_blob_len);
2650*a1157835SDaniel Fojt
2651*a1157835SDaniel Fojt if (bio) {
2652*a1157835SDaniel Fojt cert = PEM_read_bio_X509(bio, NULL, NULL, NULL);
2653*a1157835SDaniel Fojt BIO_free(bio);
2654*a1157835SDaniel Fojt }
2655*a1157835SDaniel Fojt
2656*a1157835SDaniel Fojt if (!cert) {
26576d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
26586d49e1aeSJan Lentfer "Failed to parse ca_cert_blob");
26596d49e1aeSJan Lentfer return -1;
26606d49e1aeSJan Lentfer }
26616d49e1aeSJan Lentfer
2662*a1157835SDaniel Fojt while (ERR_get_error()) {
2663*a1157835SDaniel Fojt /* Ignore errors from DER conversion. */
2664*a1157835SDaniel Fojt }
2665*a1157835SDaniel Fojt }
2666*a1157835SDaniel Fojt
2667*a1157835SDaniel Fojt if (!X509_STORE_add_cert(SSL_CTX_get_cert_store(ssl_ctx),
2668*a1157835SDaniel Fojt cert)) {
26696d49e1aeSJan Lentfer unsigned long err = ERR_peek_error();
26706d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
26716d49e1aeSJan Lentfer "Failed to add ca_cert_blob to "
26726d49e1aeSJan Lentfer "certificate store");
26736d49e1aeSJan Lentfer if (ERR_GET_LIB(err) == ERR_LIB_X509 &&
26746d49e1aeSJan Lentfer ERR_GET_REASON(err) ==
26756d49e1aeSJan Lentfer X509_R_CERT_ALREADY_IN_HASH_TABLE) {
26766d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - ignoring "
26776d49e1aeSJan Lentfer "cert already in hash table error",
26786d49e1aeSJan Lentfer __func__);
26796d49e1aeSJan Lentfer } else {
26806d49e1aeSJan Lentfer X509_free(cert);
26816d49e1aeSJan Lentfer return -1;
26826d49e1aeSJan Lentfer }
26836d49e1aeSJan Lentfer }
26846d49e1aeSJan Lentfer X509_free(cert);
26856d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - added ca_cert_blob "
26866d49e1aeSJan Lentfer "to certificate store", __func__);
26873ff40c12SJohn Marino return 0;
26883ff40c12SJohn Marino }
26893ff40c12SJohn Marino
26903ff40c12SJohn Marino #ifdef ANDROID
2691*a1157835SDaniel Fojt /* Single alias */
26923ff40c12SJohn Marino if (ca_cert && os_strncmp("keystore://", ca_cert, 11) == 0) {
2693*a1157835SDaniel Fojt if (tls_add_ca_from_keystore(SSL_CTX_get_cert_store(ssl_ctx),
2694*a1157835SDaniel Fojt &ca_cert[11]) < 0)
26953ff40c12SJohn Marino return -1;
2696*a1157835SDaniel Fojt SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
2697*a1157835SDaniel Fojt return 0;
2698*a1157835SDaniel Fojt }
26993ff40c12SJohn Marino
2700*a1157835SDaniel Fojt /* Multiple aliases separated by space */
2701*a1157835SDaniel Fojt if (ca_cert && os_strncmp("keystores://", ca_cert, 12) == 0) {
2702*a1157835SDaniel Fojt char *aliases = os_strdup(&ca_cert[12]);
2703*a1157835SDaniel Fojt const char *delim = " ";
2704*a1157835SDaniel Fojt int rc = 0;
2705*a1157835SDaniel Fojt char *savedptr;
2706*a1157835SDaniel Fojt char *alias;
2707*a1157835SDaniel Fojt
2708*a1157835SDaniel Fojt if (!aliases)
2709*a1157835SDaniel Fojt return -1;
2710*a1157835SDaniel Fojt alias = strtok_r(aliases, delim, &savedptr);
2711*a1157835SDaniel Fojt for (; alias; alias = strtok_r(NULL, delim, &savedptr)) {
2712*a1157835SDaniel Fojt if (tls_add_ca_from_keystore_encoded(
2713*a1157835SDaniel Fojt SSL_CTX_get_cert_store(ssl_ctx), alias)) {
2714*a1157835SDaniel Fojt wpa_printf(MSG_WARNING,
2715*a1157835SDaniel Fojt "OpenSSL: %s - Failed to add ca_cert %s from keystore",
2716*a1157835SDaniel Fojt __func__, alias);
2717*a1157835SDaniel Fojt rc = -1;
2718*a1157835SDaniel Fojt break;
27193ff40c12SJohn Marino }
27203ff40c12SJohn Marino }
2721*a1157835SDaniel Fojt os_free(aliases);
2722*a1157835SDaniel Fojt if (rc)
2723*a1157835SDaniel Fojt return rc;
2724*a1157835SDaniel Fojt
27256d49e1aeSJan Lentfer SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
27266d49e1aeSJan Lentfer return 0;
27276d49e1aeSJan Lentfer }
27283ff40c12SJohn Marino #endif /* ANDROID */
27296d49e1aeSJan Lentfer
27306d49e1aeSJan Lentfer #ifdef CONFIG_NATIVE_WINDOWS
27316d49e1aeSJan Lentfer if (ca_cert && tls_cryptoapi_ca_cert(ssl_ctx, conn->ssl, ca_cert) ==
27326d49e1aeSJan Lentfer 0) {
27336d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: Added CA certificates from "
27346d49e1aeSJan Lentfer "system certificate store");
27356d49e1aeSJan Lentfer return 0;
27366d49e1aeSJan Lentfer }
27376d49e1aeSJan Lentfer #endif /* CONFIG_NATIVE_WINDOWS */
27386d49e1aeSJan Lentfer
27396d49e1aeSJan Lentfer if (ca_cert || ca_path) {
27406d49e1aeSJan Lentfer #ifndef OPENSSL_NO_STDIO
27416d49e1aeSJan Lentfer if (SSL_CTX_load_verify_locations(ssl_ctx, ca_cert, ca_path) !=
27426d49e1aeSJan Lentfer 1) {
27436d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
27446d49e1aeSJan Lentfer "Failed to load root certificates");
27456d49e1aeSJan Lentfer if (ca_cert &&
2746*a1157835SDaniel Fojt tls_load_ca_der(data, ca_cert) == 0) {
27476d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - loaded "
27486d49e1aeSJan Lentfer "DER format CA certificate",
27496d49e1aeSJan Lentfer __func__);
27506d49e1aeSJan Lentfer } else
27516d49e1aeSJan Lentfer return -1;
27526d49e1aeSJan Lentfer } else {
27536d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Trusted root "
27546d49e1aeSJan Lentfer "certificate(s) loaded");
2755*a1157835SDaniel Fojt tls_get_errors(data);
27566d49e1aeSJan Lentfer }
27576d49e1aeSJan Lentfer #else /* OPENSSL_NO_STDIO */
27586d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO",
27596d49e1aeSJan Lentfer __func__);
27606d49e1aeSJan Lentfer return -1;
27616d49e1aeSJan Lentfer #endif /* OPENSSL_NO_STDIO */
27626d49e1aeSJan Lentfer } else {
27636d49e1aeSJan Lentfer /* No ca_cert configured - do not try to verify server
27646d49e1aeSJan Lentfer * certificate */
27653ff40c12SJohn Marino conn->ca_cert_verify = 0;
27666d49e1aeSJan Lentfer }
27676d49e1aeSJan Lentfer
27686d49e1aeSJan Lentfer return 0;
27696d49e1aeSJan Lentfer }
27706d49e1aeSJan Lentfer
27716d49e1aeSJan Lentfer
tls_global_ca_cert(struct tls_data * data,const char * ca_cert)2772*a1157835SDaniel Fojt static int tls_global_ca_cert(struct tls_data *data, const char *ca_cert)
27736d49e1aeSJan Lentfer {
2774*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
2775*a1157835SDaniel Fojt
27766d49e1aeSJan Lentfer if (ca_cert) {
27776d49e1aeSJan Lentfer if (SSL_CTX_load_verify_locations(ssl_ctx, ca_cert, NULL) != 1)
27786d49e1aeSJan Lentfer {
27796d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
27806d49e1aeSJan Lentfer "Failed to load root certificates");
27816d49e1aeSJan Lentfer return -1;
27826d49e1aeSJan Lentfer }
27836d49e1aeSJan Lentfer
27846d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Trusted root "
27856d49e1aeSJan Lentfer "certificate(s) loaded");
27866d49e1aeSJan Lentfer
27876d49e1aeSJan Lentfer #ifndef OPENSSL_NO_STDIO
27886d49e1aeSJan Lentfer /* Add the same CAs to the client certificate requests */
27896d49e1aeSJan Lentfer SSL_CTX_set_client_CA_list(ssl_ctx,
27906d49e1aeSJan Lentfer SSL_load_client_CA_file(ca_cert));
27916d49e1aeSJan Lentfer #endif /* OPENSSL_NO_STDIO */
2792*a1157835SDaniel Fojt
2793*a1157835SDaniel Fojt os_free(data->ca_cert);
2794*a1157835SDaniel Fojt data->ca_cert = os_strdup(ca_cert);
27956d49e1aeSJan Lentfer }
27966d49e1aeSJan Lentfer
27976d49e1aeSJan Lentfer return 0;
27986d49e1aeSJan Lentfer }
27996d49e1aeSJan Lentfer
28006d49e1aeSJan Lentfer
tls_global_set_verify(void * ssl_ctx,int check_crl,int strict)2801*a1157835SDaniel Fojt int tls_global_set_verify(void *ssl_ctx, int check_crl, int strict)
28026d49e1aeSJan Lentfer {
28036d49e1aeSJan Lentfer int flags;
28046d49e1aeSJan Lentfer
28056d49e1aeSJan Lentfer if (check_crl) {
2806*a1157835SDaniel Fojt struct tls_data *data = ssl_ctx;
2807*a1157835SDaniel Fojt X509_STORE *cs = SSL_CTX_get_cert_store(data->ssl);
28086d49e1aeSJan Lentfer if (cs == NULL) {
28096d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__, "Failed to get "
28106d49e1aeSJan Lentfer "certificate store when enabling "
28116d49e1aeSJan Lentfer "check_crl");
28126d49e1aeSJan Lentfer return -1;
28136d49e1aeSJan Lentfer }
28146d49e1aeSJan Lentfer flags = X509_V_FLAG_CRL_CHECK;
28156d49e1aeSJan Lentfer if (check_crl == 2)
28166d49e1aeSJan Lentfer flags |= X509_V_FLAG_CRL_CHECK_ALL;
28176d49e1aeSJan Lentfer X509_STORE_set_flags(cs, flags);
2818*a1157835SDaniel Fojt
2819*a1157835SDaniel Fojt data->check_crl = check_crl;
2820*a1157835SDaniel Fojt data->check_crl_strict = strict;
2821*a1157835SDaniel Fojt os_get_reltime(&data->crl_last_reload);
28226d49e1aeSJan Lentfer }
28236d49e1aeSJan Lentfer return 0;
28246d49e1aeSJan Lentfer }
28256d49e1aeSJan Lentfer
28266d49e1aeSJan Lentfer
tls_connection_set_subject_match(struct tls_connection * conn,const char * subject_match,const char * altsubject_match,const char * suffix_match,const char * domain_match,const char * check_cert_subject)28276d49e1aeSJan Lentfer static int tls_connection_set_subject_match(struct tls_connection *conn,
28286d49e1aeSJan Lentfer const char *subject_match,
28293ff40c12SJohn Marino const char *altsubject_match,
2830*a1157835SDaniel Fojt const char *suffix_match,
2831*a1157835SDaniel Fojt const char *domain_match,
2832*a1157835SDaniel Fojt const char *check_cert_subject)
28336d49e1aeSJan Lentfer {
28346d49e1aeSJan Lentfer os_free(conn->subject_match);
28356d49e1aeSJan Lentfer conn->subject_match = NULL;
28366d49e1aeSJan Lentfer if (subject_match) {
28376d49e1aeSJan Lentfer conn->subject_match = os_strdup(subject_match);
28386d49e1aeSJan Lentfer if (conn->subject_match == NULL)
28396d49e1aeSJan Lentfer return -1;
28406d49e1aeSJan Lentfer }
28416d49e1aeSJan Lentfer
28426d49e1aeSJan Lentfer os_free(conn->altsubject_match);
28436d49e1aeSJan Lentfer conn->altsubject_match = NULL;
28446d49e1aeSJan Lentfer if (altsubject_match) {
28456d49e1aeSJan Lentfer conn->altsubject_match = os_strdup(altsubject_match);
28466d49e1aeSJan Lentfer if (conn->altsubject_match == NULL)
28476d49e1aeSJan Lentfer return -1;
28486d49e1aeSJan Lentfer }
28496d49e1aeSJan Lentfer
28503ff40c12SJohn Marino os_free(conn->suffix_match);
28513ff40c12SJohn Marino conn->suffix_match = NULL;
28523ff40c12SJohn Marino if (suffix_match) {
28533ff40c12SJohn Marino conn->suffix_match = os_strdup(suffix_match);
28543ff40c12SJohn Marino if (conn->suffix_match == NULL)
28553ff40c12SJohn Marino return -1;
28563ff40c12SJohn Marino }
28573ff40c12SJohn Marino
2858*a1157835SDaniel Fojt os_free(conn->domain_match);
2859*a1157835SDaniel Fojt conn->domain_match = NULL;
2860*a1157835SDaniel Fojt if (domain_match) {
2861*a1157835SDaniel Fojt conn->domain_match = os_strdup(domain_match);
2862*a1157835SDaniel Fojt if (conn->domain_match == NULL)
2863*a1157835SDaniel Fojt return -1;
2864*a1157835SDaniel Fojt }
2865*a1157835SDaniel Fojt
2866*a1157835SDaniel Fojt os_free(conn->check_cert_subject);
2867*a1157835SDaniel Fojt conn->check_cert_subject = NULL;
2868*a1157835SDaniel Fojt if (check_cert_subject) {
2869*a1157835SDaniel Fojt conn->check_cert_subject = os_strdup(check_cert_subject);
2870*a1157835SDaniel Fojt if (!conn->check_cert_subject)
2871*a1157835SDaniel Fojt return -1;
2872*a1157835SDaniel Fojt }
2873*a1157835SDaniel Fojt
2874*a1157835SDaniel Fojt return 0;
2875*a1157835SDaniel Fojt }
2876*a1157835SDaniel Fojt
2877*a1157835SDaniel Fojt
2878*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
2879*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10002000L
suiteb_cert_cb(SSL * ssl,void * arg)2880*a1157835SDaniel Fojt static int suiteb_cert_cb(SSL *ssl, void *arg)
2881*a1157835SDaniel Fojt {
2882*a1157835SDaniel Fojt struct tls_connection *conn = arg;
2883*a1157835SDaniel Fojt
2884*a1157835SDaniel Fojt /*
2885*a1157835SDaniel Fojt * This cert_cb() is not really the best location for doing a
2886*a1157835SDaniel Fojt * constraint check for the ServerKeyExchange message, but this seems to
2887*a1157835SDaniel Fojt * be the only place where the current OpenSSL sequence can be
2888*a1157835SDaniel Fojt * terminated cleanly with an TLS alert going out to the server.
2889*a1157835SDaniel Fojt */
2890*a1157835SDaniel Fojt
2891*a1157835SDaniel Fojt if (!(conn->flags & TLS_CONN_SUITEB))
2892*a1157835SDaniel Fojt return 1;
2893*a1157835SDaniel Fojt
2894*a1157835SDaniel Fojt /* DHE is enabled only with DHE-RSA-AES256-GCM-SHA384 */
2895*a1157835SDaniel Fojt if (conn->cipher_suite != 0x9f)
2896*a1157835SDaniel Fojt return 1;
2897*a1157835SDaniel Fojt
2898*a1157835SDaniel Fojt if (conn->server_dh_prime_len >= 3072)
2899*a1157835SDaniel Fojt return 1;
2900*a1157835SDaniel Fojt
2901*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2902*a1157835SDaniel Fojt "OpenSSL: Server DH prime length (%d bits) not sufficient for Suite B RSA - reject handshake",
2903*a1157835SDaniel Fojt conn->server_dh_prime_len);
2904*a1157835SDaniel Fojt return 0;
2905*a1157835SDaniel Fojt }
2906*a1157835SDaniel Fojt #endif /* OPENSSL_VERSION_NUMBER */
2907*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
2908*a1157835SDaniel Fojt
2909*a1157835SDaniel Fojt
tls_set_conn_flags(struct tls_connection * conn,unsigned int flags,const char * openssl_ciphers)2910*a1157835SDaniel Fojt static int tls_set_conn_flags(struct tls_connection *conn, unsigned int flags,
2911*a1157835SDaniel Fojt const char *openssl_ciphers)
2912*a1157835SDaniel Fojt {
2913*a1157835SDaniel Fojt SSL *ssl = conn->ssl;
2914*a1157835SDaniel Fojt
2915*a1157835SDaniel Fojt #ifdef SSL_OP_NO_TICKET
2916*a1157835SDaniel Fojt if (flags & TLS_CONN_DISABLE_SESSION_TICKET)
2917*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TICKET);
2918*a1157835SDaniel Fojt else
2919*a1157835SDaniel Fojt SSL_clear_options(ssl, SSL_OP_NO_TICKET);
2920*a1157835SDaniel Fojt #endif /* SSL_OP_NO_TICKET */
2921*a1157835SDaniel Fojt
2922*a1157835SDaniel Fojt #ifdef SSL_OP_NO_TLSv1
2923*a1157835SDaniel Fojt if (flags & TLS_CONN_DISABLE_TLSv1_0)
2924*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TLSv1);
2925*a1157835SDaniel Fojt else
2926*a1157835SDaniel Fojt SSL_clear_options(ssl, SSL_OP_NO_TLSv1);
2927*a1157835SDaniel Fojt #endif /* SSL_OP_NO_TLSv1 */
2928*a1157835SDaniel Fojt #ifdef SSL_OP_NO_TLSv1_1
2929*a1157835SDaniel Fojt if (flags & TLS_CONN_DISABLE_TLSv1_1)
2930*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TLSv1_1);
2931*a1157835SDaniel Fojt else
2932*a1157835SDaniel Fojt SSL_clear_options(ssl, SSL_OP_NO_TLSv1_1);
2933*a1157835SDaniel Fojt #endif /* SSL_OP_NO_TLSv1_1 */
2934*a1157835SDaniel Fojt #ifdef SSL_OP_NO_TLSv1_2
2935*a1157835SDaniel Fojt if (flags & TLS_CONN_DISABLE_TLSv1_2)
2936*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TLSv1_2);
2937*a1157835SDaniel Fojt else
2938*a1157835SDaniel Fojt SSL_clear_options(ssl, SSL_OP_NO_TLSv1_2);
2939*a1157835SDaniel Fojt #endif /* SSL_OP_NO_TLSv1_2 */
2940*a1157835SDaniel Fojt #ifdef SSL_OP_NO_TLSv1_3
2941*a1157835SDaniel Fojt if (flags & TLS_CONN_DISABLE_TLSv1_3)
2942*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TLSv1_3);
2943*a1157835SDaniel Fojt else
2944*a1157835SDaniel Fojt SSL_clear_options(ssl, SSL_OP_NO_TLSv1_3);
2945*a1157835SDaniel Fojt #endif /* SSL_OP_NO_TLSv1_3 */
2946*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10100000L
2947*a1157835SDaniel Fojt if (flags & (TLS_CONN_ENABLE_TLSv1_0 |
2948*a1157835SDaniel Fojt TLS_CONN_ENABLE_TLSv1_1 |
2949*a1157835SDaniel Fojt TLS_CONN_ENABLE_TLSv1_2)) {
2950*a1157835SDaniel Fojt int version = 0;
2951*a1157835SDaniel Fojt
2952*a1157835SDaniel Fojt /* Explicit request to enable TLS versions even if needing to
2953*a1157835SDaniel Fojt * override systemwide policies. */
2954*a1157835SDaniel Fojt if (flags & TLS_CONN_ENABLE_TLSv1_0) {
2955*a1157835SDaniel Fojt version = TLS1_VERSION;
2956*a1157835SDaniel Fojt } else if (flags & TLS_CONN_ENABLE_TLSv1_1) {
2957*a1157835SDaniel Fojt if (!(flags & TLS_CONN_DISABLE_TLSv1_0))
2958*a1157835SDaniel Fojt version = TLS1_1_VERSION;
2959*a1157835SDaniel Fojt } else if (flags & TLS_CONN_ENABLE_TLSv1_2) {
2960*a1157835SDaniel Fojt if (!(flags & (TLS_CONN_DISABLE_TLSv1_0 |
2961*a1157835SDaniel Fojt TLS_CONN_DISABLE_TLSv1_1)))
2962*a1157835SDaniel Fojt version = TLS1_2_VERSION;
2963*a1157835SDaniel Fojt }
2964*a1157835SDaniel Fojt if (!version) {
2965*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2966*a1157835SDaniel Fojt "OpenSSL: Invalid TLS version configuration");
2967*a1157835SDaniel Fojt return -1;
2968*a1157835SDaniel Fojt }
2969*a1157835SDaniel Fojt
2970*a1157835SDaniel Fojt if (SSL_set_min_proto_version(ssl, version) != 1) {
2971*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2972*a1157835SDaniel Fojt "OpenSSL: Failed to set minimum TLS version");
2973*a1157835SDaniel Fojt return -1;
2974*a1157835SDaniel Fojt }
2975*a1157835SDaniel Fojt }
2976*a1157835SDaniel Fojt #endif /* >= 1.1.0 */
2977*a1157835SDaniel Fojt
2978*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
2979*a1157835SDaniel Fojt #ifdef OPENSSL_IS_BORINGSSL
2980*a1157835SDaniel Fojt /* Start with defaults from BoringSSL */
2981*a1157835SDaniel Fojt SSL_CTX_set_verify_algorithm_prefs(conn->ssl_ctx, NULL, 0);
2982*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
2983*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10002000L
2984*a1157835SDaniel Fojt if (flags & TLS_CONN_SUITEB_NO_ECDH) {
2985*a1157835SDaniel Fojt const char *ciphers = "DHE-RSA-AES256-GCM-SHA384";
2986*a1157835SDaniel Fojt
2987*a1157835SDaniel Fojt if (openssl_ciphers) {
2988*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
2989*a1157835SDaniel Fojt "OpenSSL: Override ciphers for Suite B (no ECDH): %s",
2990*a1157835SDaniel Fojt openssl_ciphers);
2991*a1157835SDaniel Fojt ciphers = openssl_ciphers;
2992*a1157835SDaniel Fojt }
2993*a1157835SDaniel Fojt if (SSL_set_cipher_list(ssl, ciphers) != 1) {
2994*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
2995*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B ciphers");
2996*a1157835SDaniel Fojt return -1;
2997*a1157835SDaniel Fojt }
2998*a1157835SDaniel Fojt } else if (flags & TLS_CONN_SUITEB) {
2999*a1157835SDaniel Fojt EC_KEY *ecdh;
3000*a1157835SDaniel Fojt const char *ciphers =
3001*a1157835SDaniel Fojt "ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384";
3002*a1157835SDaniel Fojt int nid[1] = { NID_secp384r1 };
3003*a1157835SDaniel Fojt
3004*a1157835SDaniel Fojt if (openssl_ciphers) {
3005*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
3006*a1157835SDaniel Fojt "OpenSSL: Override ciphers for Suite B: %s",
3007*a1157835SDaniel Fojt openssl_ciphers);
3008*a1157835SDaniel Fojt ciphers = openssl_ciphers;
3009*a1157835SDaniel Fojt }
3010*a1157835SDaniel Fojt if (SSL_set_cipher_list(ssl, ciphers) != 1) {
3011*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3012*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B ciphers");
3013*a1157835SDaniel Fojt return -1;
3014*a1157835SDaniel Fojt }
3015*a1157835SDaniel Fojt
3016*a1157835SDaniel Fojt if (SSL_set1_curves(ssl, nid, 1) != 1) {
3017*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3018*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B curves");
3019*a1157835SDaniel Fojt return -1;
3020*a1157835SDaniel Fojt }
3021*a1157835SDaniel Fojt
3022*a1157835SDaniel Fojt ecdh = EC_KEY_new_by_curve_name(NID_secp384r1);
3023*a1157835SDaniel Fojt if (!ecdh || SSL_set_tmp_ecdh(ssl, ecdh) != 1) {
3024*a1157835SDaniel Fojt EC_KEY_free(ecdh);
3025*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3026*a1157835SDaniel Fojt "OpenSSL: Failed to set ECDH parameter");
3027*a1157835SDaniel Fojt return -1;
3028*a1157835SDaniel Fojt }
3029*a1157835SDaniel Fojt EC_KEY_free(ecdh);
3030*a1157835SDaniel Fojt }
3031*a1157835SDaniel Fojt if (flags & (TLS_CONN_SUITEB | TLS_CONN_SUITEB_NO_ECDH)) {
3032*a1157835SDaniel Fojt #ifdef OPENSSL_IS_BORINGSSL
3033*a1157835SDaniel Fojt uint16_t sigalgs[1] = { SSL_SIGN_RSA_PKCS1_SHA384 };
3034*a1157835SDaniel Fojt
3035*a1157835SDaniel Fojt if (SSL_CTX_set_verify_algorithm_prefs(conn->ssl_ctx, sigalgs,
3036*a1157835SDaniel Fojt 1) != 1) {
3037*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3038*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B sigalgs");
3039*a1157835SDaniel Fojt return -1;
3040*a1157835SDaniel Fojt }
3041*a1157835SDaniel Fojt #else /* OPENSSL_IS_BORINGSSL */
3042*a1157835SDaniel Fojt /* ECDSA+SHA384 if need to add EC support here */
3043*a1157835SDaniel Fojt if (SSL_set1_sigalgs_list(ssl, "RSA+SHA384") != 1) {
3044*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3045*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B sigalgs");
3046*a1157835SDaniel Fojt return -1;
3047*a1157835SDaniel Fojt }
3048*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
3049*a1157835SDaniel Fojt
3050*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TLSv1);
3051*a1157835SDaniel Fojt SSL_set_options(ssl, SSL_OP_NO_TLSv1_1);
3052*a1157835SDaniel Fojt SSL_set_cert_cb(ssl, suiteb_cert_cb, conn);
3053*a1157835SDaniel Fojt }
3054*a1157835SDaniel Fojt #else /* OPENSSL_VERSION_NUMBER < 0x10002000L */
3055*a1157835SDaniel Fojt if (flags & (TLS_CONN_SUITEB | TLS_CONN_SUITEB_NO_ECDH)) {
3056*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
3057*a1157835SDaniel Fojt "OpenSSL: Suite B RSA case not supported with this OpenSSL version");
3058*a1157835SDaniel Fojt return -1;
3059*a1157835SDaniel Fojt }
3060*a1157835SDaniel Fojt #endif /* OPENSSL_VERSION_NUMBER */
3061*a1157835SDaniel Fojt
3062*a1157835SDaniel Fojt #ifdef OPENSSL_IS_BORINGSSL
3063*a1157835SDaniel Fojt if (openssl_ciphers && os_strcmp(openssl_ciphers, "SUITEB192") == 0) {
3064*a1157835SDaniel Fojt uint16_t sigalgs[1] = { SSL_SIGN_ECDSA_SECP384R1_SHA384 };
3065*a1157835SDaniel Fojt int nid[1] = { NID_secp384r1 };
3066*a1157835SDaniel Fojt
3067*a1157835SDaniel Fojt if (SSL_set1_curves(ssl, nid, 1) != 1) {
3068*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3069*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B curves");
3070*a1157835SDaniel Fojt return -1;
3071*a1157835SDaniel Fojt }
3072*a1157835SDaniel Fojt
3073*a1157835SDaniel Fojt if (SSL_CTX_set_verify_algorithm_prefs(conn->ssl_ctx, sigalgs,
3074*a1157835SDaniel Fojt 1) != 1) {
3075*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3076*a1157835SDaniel Fojt "OpenSSL: Failed to set Suite B sigalgs");
3077*a1157835SDaniel Fojt return -1;
3078*a1157835SDaniel Fojt }
3079*a1157835SDaniel Fojt }
3080*a1157835SDaniel Fojt #else /* OPENSSL_IS_BORINGSSL */
3081*a1157835SDaniel Fojt if (!(flags & (TLS_CONN_SUITEB | TLS_CONN_SUITEB_NO_ECDH)) &&
3082*a1157835SDaniel Fojt openssl_ciphers && SSL_set_cipher_list(ssl, openssl_ciphers) != 1) {
3083*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3084*a1157835SDaniel Fojt "OpenSSL: Failed to set openssl_ciphers '%s'",
3085*a1157835SDaniel Fojt openssl_ciphers);
3086*a1157835SDaniel Fojt return -1;
3087*a1157835SDaniel Fojt }
3088*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
3089*a1157835SDaniel Fojt #else /* CONFIG_SUITEB */
3090*a1157835SDaniel Fojt if (openssl_ciphers && SSL_set_cipher_list(ssl, openssl_ciphers) != 1) {
3091*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
3092*a1157835SDaniel Fojt "OpenSSL: Failed to set openssl_ciphers '%s'",
3093*a1157835SDaniel Fojt openssl_ciphers);
3094*a1157835SDaniel Fojt return -1;
3095*a1157835SDaniel Fojt }
3096*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
3097*a1157835SDaniel Fojt
3098*a1157835SDaniel Fojt if (flags & TLS_CONN_TEAP_ANON_DH) {
3099*a1157835SDaniel Fojt #ifndef TEAP_DH_ANON_CS
3100*a1157835SDaniel Fojt #define TEAP_DH_ANON_CS \
3101*a1157835SDaniel Fojt "ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:" \
3102*a1157835SDaniel Fojt "ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA256:" \
3103*a1157835SDaniel Fojt "ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES128-SHA:" \
3104*a1157835SDaniel Fojt "DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:" \
3105*a1157835SDaniel Fojt "DHE-RSA-AES256-SHA256:DHE-RSA-AES128-SHA256:" \
3106*a1157835SDaniel Fojt "DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:" \
3107*a1157835SDaniel Fojt "ADH-AES256-GCM-SHA384:ADH-AES128-GCM-SHA256:" \
3108*a1157835SDaniel Fojt "ADH-AES256-SHA256:ADH-AES128-SHA256:ADH-AES256-SHA:ADH-AES128-SHA"
3109*a1157835SDaniel Fojt #endif
3110*a1157835SDaniel Fojt static const char *cs = TEAP_DH_ANON_CS;
3111*a1157835SDaniel Fojt
3112*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10100000L && \
3113*a1157835SDaniel Fojt !defined(LIBRESSL_VERSION_NUMBER) && \
3114*a1157835SDaniel Fojt !defined(OPENSSL_IS_BORINGSSL)
3115*a1157835SDaniel Fojt /*
3116*a1157835SDaniel Fojt * Need to drop to security level 0 to allow anonymous
3117*a1157835SDaniel Fojt * cipher suites for EAP-TEAP.
3118*a1157835SDaniel Fojt */
3119*a1157835SDaniel Fojt SSL_set_security_level(conn->ssl, 0);
3120*a1157835SDaniel Fojt #endif
3121*a1157835SDaniel Fojt
3122*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
3123*a1157835SDaniel Fojt "OpenSSL: Enable cipher suites for anonymous EAP-TEAP provisioning: %s",
3124*a1157835SDaniel Fojt cs);
3125*a1157835SDaniel Fojt if (SSL_set_cipher_list(conn->ssl, cs) != 1) {
3126*a1157835SDaniel Fojt tls_show_errors(MSG_INFO, __func__,
3127*a1157835SDaniel Fojt "Cipher suite configuration failed");
3128*a1157835SDaniel Fojt return -1;
3129*a1157835SDaniel Fojt }
3130*a1157835SDaniel Fojt }
3131*a1157835SDaniel Fojt
31326d49e1aeSJan Lentfer return 0;
31336d49e1aeSJan Lentfer }
31346d49e1aeSJan Lentfer
31356d49e1aeSJan Lentfer
tls_connection_set_verify(void * ssl_ctx,struct tls_connection * conn,int verify_peer,unsigned int flags,const u8 * session_ctx,size_t session_ctx_len)31366d49e1aeSJan Lentfer int tls_connection_set_verify(void *ssl_ctx, struct tls_connection *conn,
3137*a1157835SDaniel Fojt int verify_peer, unsigned int flags,
3138*a1157835SDaniel Fojt const u8 *session_ctx, size_t session_ctx_len)
31396d49e1aeSJan Lentfer {
31406d49e1aeSJan Lentfer static int counter = 0;
3141*a1157835SDaniel Fojt struct tls_data *data = ssl_ctx;
31426d49e1aeSJan Lentfer
31436d49e1aeSJan Lentfer if (conn == NULL)
31446d49e1aeSJan Lentfer return -1;
31456d49e1aeSJan Lentfer
31466d49e1aeSJan Lentfer if (verify_peer) {
31473ff40c12SJohn Marino conn->ca_cert_verify = 1;
31486d49e1aeSJan Lentfer SSL_set_verify(conn->ssl, SSL_VERIFY_PEER |
31496d49e1aeSJan Lentfer SSL_VERIFY_FAIL_IF_NO_PEER_CERT |
31506d49e1aeSJan Lentfer SSL_VERIFY_CLIENT_ONCE, tls_verify_cb);
31516d49e1aeSJan Lentfer } else {
31523ff40c12SJohn Marino conn->ca_cert_verify = 0;
31536d49e1aeSJan Lentfer SSL_set_verify(conn->ssl, SSL_VERIFY_NONE, NULL);
31546d49e1aeSJan Lentfer }
31556d49e1aeSJan Lentfer
3156*a1157835SDaniel Fojt if (tls_set_conn_flags(conn, flags, NULL) < 0)
3157*a1157835SDaniel Fojt return -1;
3158*a1157835SDaniel Fojt conn->flags = flags;
3159*a1157835SDaniel Fojt
31606d49e1aeSJan Lentfer SSL_set_accept_state(conn->ssl);
31616d49e1aeSJan Lentfer
3162*a1157835SDaniel Fojt if (data->tls_session_lifetime == 0) {
31636d49e1aeSJan Lentfer /*
3164*a1157835SDaniel Fojt * Set session id context to a unique value to make sure
3165*a1157835SDaniel Fojt * session resumption cannot be used either through session
3166*a1157835SDaniel Fojt * caching or TLS ticket extension.
31676d49e1aeSJan Lentfer */
31686d49e1aeSJan Lentfer counter++;
31696d49e1aeSJan Lentfer SSL_set_session_id_context(conn->ssl,
31706d49e1aeSJan Lentfer (const unsigned char *) &counter,
31716d49e1aeSJan Lentfer sizeof(counter));
3172*a1157835SDaniel Fojt } else if (session_ctx) {
3173*a1157835SDaniel Fojt SSL_set_session_id_context(conn->ssl, session_ctx,
3174*a1157835SDaniel Fojt session_ctx_len);
3175*a1157835SDaniel Fojt }
31766d49e1aeSJan Lentfer
31776d49e1aeSJan Lentfer return 0;
31786d49e1aeSJan Lentfer }
31796d49e1aeSJan Lentfer
31806d49e1aeSJan Lentfer
tls_connection_client_cert(struct tls_connection * conn,const char * client_cert,const u8 * client_cert_blob,size_t client_cert_blob_len)31816d49e1aeSJan Lentfer static int tls_connection_client_cert(struct tls_connection *conn,
31826d49e1aeSJan Lentfer const char *client_cert,
31836d49e1aeSJan Lentfer const u8 *client_cert_blob,
31846d49e1aeSJan Lentfer size_t client_cert_blob_len)
31856d49e1aeSJan Lentfer {
31866d49e1aeSJan Lentfer if (client_cert == NULL && client_cert_blob == NULL)
31876d49e1aeSJan Lentfer return 0;
31886d49e1aeSJan Lentfer
3189*a1157835SDaniel Fojt #ifdef PKCS12_FUNCS
3190*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10002000L || defined(LIBRESSL_VERSION_NUMBER)
3191*a1157835SDaniel Fojt /*
3192*a1157835SDaniel Fojt * Clear previously set extra chain certificates, if any, from PKCS#12
3193*a1157835SDaniel Fojt * processing in tls_parse_pkcs12() to allow OpenSSL to build a new
3194*a1157835SDaniel Fojt * chain properly.
3195*a1157835SDaniel Fojt */
3196*a1157835SDaniel Fojt SSL_CTX_clear_extra_chain_certs(conn->ssl_ctx);
3197*a1157835SDaniel Fojt #endif /* OPENSSL_VERSION_NUMBER < 0x10002000L */
3198*a1157835SDaniel Fojt #endif /* PKCS12_FUNCS */
3199*a1157835SDaniel Fojt
32006d49e1aeSJan Lentfer if (client_cert_blob &&
32016d49e1aeSJan Lentfer SSL_use_certificate_ASN1(conn->ssl, (u8 *) client_cert_blob,
32026d49e1aeSJan Lentfer client_cert_blob_len) == 1) {
32036d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_ASN1 --> "
32046d49e1aeSJan Lentfer "OK");
32056d49e1aeSJan Lentfer return 0;
32066d49e1aeSJan Lentfer } else if (client_cert_blob) {
32076d49e1aeSJan Lentfer tls_show_errors(MSG_DEBUG, __func__,
32086d49e1aeSJan Lentfer "SSL_use_certificate_ASN1 failed");
32096d49e1aeSJan Lentfer }
32106d49e1aeSJan Lentfer
32116d49e1aeSJan Lentfer if (client_cert == NULL)
32126d49e1aeSJan Lentfer return -1;
32136d49e1aeSJan Lentfer
32143ff40c12SJohn Marino #ifdef ANDROID
32153ff40c12SJohn Marino if (os_strncmp("keystore://", client_cert, 11) == 0) {
32163ff40c12SJohn Marino BIO *bio = BIO_from_keystore(&client_cert[11]);
32173ff40c12SJohn Marino X509 *x509 = NULL;
32183ff40c12SJohn Marino int ret = -1;
32193ff40c12SJohn Marino if (bio) {
32203ff40c12SJohn Marino x509 = PEM_read_bio_X509(bio, NULL, NULL, NULL);
32213ff40c12SJohn Marino }
32223ff40c12SJohn Marino if (x509) {
32233ff40c12SJohn Marino if (SSL_use_certificate(conn->ssl, x509) == 1)
32243ff40c12SJohn Marino ret = 0;
32253ff40c12SJohn Marino X509_free(x509);
32263ff40c12SJohn Marino }
3227*a1157835SDaniel Fojt
3228*a1157835SDaniel Fojt /* Read additional certificates into the chain. */
3229*a1157835SDaniel Fojt while (bio) {
3230*a1157835SDaniel Fojt x509 = PEM_read_bio_X509(bio, NULL, NULL, NULL);
3231*a1157835SDaniel Fojt if (x509) {
3232*a1157835SDaniel Fojt /* Takes ownership of x509 */
3233*a1157835SDaniel Fojt SSL_add0_chain_cert(conn->ssl, x509);
3234*a1157835SDaniel Fojt } else {
3235*a1157835SDaniel Fojt BIO_free(bio);
3236*a1157835SDaniel Fojt bio = NULL;
3237*a1157835SDaniel Fojt }
3238*a1157835SDaniel Fojt }
32393ff40c12SJohn Marino return ret;
32403ff40c12SJohn Marino }
32413ff40c12SJohn Marino #endif /* ANDROID */
32423ff40c12SJohn Marino
32436d49e1aeSJan Lentfer #ifndef OPENSSL_NO_STDIO
32446d49e1aeSJan Lentfer if (SSL_use_certificate_file(conn->ssl, client_cert,
32456d49e1aeSJan Lentfer SSL_FILETYPE_ASN1) == 1) {
32466d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_file (DER)"
32476d49e1aeSJan Lentfer " --> OK");
32486d49e1aeSJan Lentfer return 0;
32496d49e1aeSJan Lentfer }
32506d49e1aeSJan Lentfer
3251*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10100000L && \
3252*a1157835SDaniel Fojt !defined(LIBRESSL_VERSION_NUMBER) && !defined(OPENSSL_IS_BORINGSSL)
3253*a1157835SDaniel Fojt if (SSL_use_certificate_chain_file(conn->ssl, client_cert) == 1) {
3254*a1157835SDaniel Fojt ERR_clear_error();
3255*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_chain_file"
3256*a1157835SDaniel Fojt " --> OK");
3257*a1157835SDaniel Fojt return 0;
3258*a1157835SDaniel Fojt }
3259*a1157835SDaniel Fojt #else
32606d49e1aeSJan Lentfer if (SSL_use_certificate_file(conn->ssl, client_cert,
32616d49e1aeSJan Lentfer SSL_FILETYPE_PEM) == 1) {
32623ff40c12SJohn Marino ERR_clear_error();
32636d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_certificate_file (PEM)"
32646d49e1aeSJan Lentfer " --> OK");
32656d49e1aeSJan Lentfer return 0;
32666d49e1aeSJan Lentfer }
3267*a1157835SDaniel Fojt #endif
32683ff40c12SJohn Marino
32693ff40c12SJohn Marino tls_show_errors(MSG_DEBUG, __func__,
32703ff40c12SJohn Marino "SSL_use_certificate_file failed");
32716d49e1aeSJan Lentfer #else /* OPENSSL_NO_STDIO */
32726d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO", __func__);
32736d49e1aeSJan Lentfer #endif /* OPENSSL_NO_STDIO */
32746d49e1aeSJan Lentfer
32756d49e1aeSJan Lentfer return -1;
32766d49e1aeSJan Lentfer }
32776d49e1aeSJan Lentfer
32786d49e1aeSJan Lentfer
tls_global_client_cert(struct tls_data * data,const char * client_cert)3279*a1157835SDaniel Fojt static int tls_global_client_cert(struct tls_data *data,
3280*a1157835SDaniel Fojt const char *client_cert)
32816d49e1aeSJan Lentfer {
32826d49e1aeSJan Lentfer #ifndef OPENSSL_NO_STDIO
3283*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
3284*a1157835SDaniel Fojt
32856d49e1aeSJan Lentfer if (client_cert == NULL)
32866d49e1aeSJan Lentfer return 0;
32876d49e1aeSJan Lentfer
32886d49e1aeSJan Lentfer if (SSL_CTX_use_certificate_file(ssl_ctx, client_cert,
32896d49e1aeSJan Lentfer SSL_FILETYPE_ASN1) != 1 &&
32903ff40c12SJohn Marino SSL_CTX_use_certificate_chain_file(ssl_ctx, client_cert) != 1 &&
32916d49e1aeSJan Lentfer SSL_CTX_use_certificate_file(ssl_ctx, client_cert,
32926d49e1aeSJan Lentfer SSL_FILETYPE_PEM) != 1) {
32936d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
32946d49e1aeSJan Lentfer "Failed to load client certificate");
32956d49e1aeSJan Lentfer return -1;
32966d49e1aeSJan Lentfer }
32976d49e1aeSJan Lentfer return 0;
32986d49e1aeSJan Lentfer #else /* OPENSSL_NO_STDIO */
32996d49e1aeSJan Lentfer if (client_cert == NULL)
33006d49e1aeSJan Lentfer return 0;
33016d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO", __func__);
33026d49e1aeSJan Lentfer return -1;
33036d49e1aeSJan Lentfer #endif /* OPENSSL_NO_STDIO */
33046d49e1aeSJan Lentfer }
33056d49e1aeSJan Lentfer
33066d49e1aeSJan Lentfer
33076d49e1aeSJan Lentfer #ifdef PKCS12_FUNCS
tls_parse_pkcs12(struct tls_data * data,SSL * ssl,PKCS12 * p12,const char * passwd)3308*a1157835SDaniel Fojt static int tls_parse_pkcs12(struct tls_data *data, SSL *ssl, PKCS12 *p12,
33096d49e1aeSJan Lentfer const char *passwd)
33106d49e1aeSJan Lentfer {
33116d49e1aeSJan Lentfer EVP_PKEY *pkey;
33126d49e1aeSJan Lentfer X509 *cert;
33136d49e1aeSJan Lentfer STACK_OF(X509) *certs;
33146d49e1aeSJan Lentfer int res = 0;
33156d49e1aeSJan Lentfer char buf[256];
33166d49e1aeSJan Lentfer
33176d49e1aeSJan Lentfer pkey = NULL;
33186d49e1aeSJan Lentfer cert = NULL;
33196d49e1aeSJan Lentfer certs = NULL;
3320*a1157835SDaniel Fojt if (!passwd)
3321*a1157835SDaniel Fojt passwd = "";
33226d49e1aeSJan Lentfer if (!PKCS12_parse(p12, passwd, &pkey, &cert, &certs)) {
33236d49e1aeSJan Lentfer tls_show_errors(MSG_DEBUG, __func__,
33246d49e1aeSJan Lentfer "Failed to parse PKCS12 file");
33256d49e1aeSJan Lentfer PKCS12_free(p12);
33266d49e1aeSJan Lentfer return -1;
33276d49e1aeSJan Lentfer }
33286d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Successfully parsed PKCS12 data");
33296d49e1aeSJan Lentfer
33306d49e1aeSJan Lentfer if (cert) {
33316d49e1aeSJan Lentfer X509_NAME_oneline(X509_get_subject_name(cert), buf,
33326d49e1aeSJan Lentfer sizeof(buf));
33336d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Got certificate from PKCS12: "
33346d49e1aeSJan Lentfer "subject='%s'", buf);
33356d49e1aeSJan Lentfer if (ssl) {
33366d49e1aeSJan Lentfer if (SSL_use_certificate(ssl, cert) != 1)
33376d49e1aeSJan Lentfer res = -1;
33386d49e1aeSJan Lentfer } else {
3339*a1157835SDaniel Fojt if (SSL_CTX_use_certificate(data->ssl, cert) != 1)
33406d49e1aeSJan Lentfer res = -1;
33416d49e1aeSJan Lentfer }
33426d49e1aeSJan Lentfer X509_free(cert);
33436d49e1aeSJan Lentfer }
33446d49e1aeSJan Lentfer
33456d49e1aeSJan Lentfer if (pkey) {
33466d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Got private key from PKCS12");
33476d49e1aeSJan Lentfer if (ssl) {
33486d49e1aeSJan Lentfer if (SSL_use_PrivateKey(ssl, pkey) != 1)
33496d49e1aeSJan Lentfer res = -1;
33506d49e1aeSJan Lentfer } else {
3351*a1157835SDaniel Fojt if (SSL_CTX_use_PrivateKey(data->ssl, pkey) != 1)
33526d49e1aeSJan Lentfer res = -1;
33536d49e1aeSJan Lentfer }
33546d49e1aeSJan Lentfer EVP_PKEY_free(pkey);
33556d49e1aeSJan Lentfer }
33566d49e1aeSJan Lentfer
33576d49e1aeSJan Lentfer if (certs) {
3358*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10002000L && !defined(LIBRESSL_VERSION_NUMBER)
3359*a1157835SDaniel Fojt if (ssl)
3360*a1157835SDaniel Fojt SSL_clear_chain_certs(ssl);
3361*a1157835SDaniel Fojt else
3362*a1157835SDaniel Fojt SSL_CTX_clear_chain_certs(data->ssl);
3363*a1157835SDaniel Fojt while ((cert = sk_X509_pop(certs)) != NULL) {
3364*a1157835SDaniel Fojt X509_NAME_oneline(X509_get_subject_name(cert), buf,
3365*a1157835SDaniel Fojt sizeof(buf));
3366*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "TLS: additional certificate"
3367*a1157835SDaniel Fojt " from PKCS12: subject='%s'", buf);
3368*a1157835SDaniel Fojt if ((ssl && SSL_add1_chain_cert(ssl, cert) != 1) ||
3369*a1157835SDaniel Fojt (!ssl && SSL_CTX_add1_chain_cert(data->ssl,
3370*a1157835SDaniel Fojt cert) != 1)) {
3371*a1157835SDaniel Fojt tls_show_errors(MSG_DEBUG, __func__,
3372*a1157835SDaniel Fojt "Failed to add additional certificate");
3373*a1157835SDaniel Fojt res = -1;
3374*a1157835SDaniel Fojt X509_free(cert);
3375*a1157835SDaniel Fojt break;
3376*a1157835SDaniel Fojt }
3377*a1157835SDaniel Fojt X509_free(cert);
3378*a1157835SDaniel Fojt }
3379*a1157835SDaniel Fojt if (!res) {
3380*a1157835SDaniel Fojt /* Try to continue anyway */
3381*a1157835SDaniel Fojt }
3382*a1157835SDaniel Fojt sk_X509_pop_free(certs, X509_free);
3383*a1157835SDaniel Fojt #ifndef OPENSSL_IS_BORINGSSL
3384*a1157835SDaniel Fojt if (ssl)
3385*a1157835SDaniel Fojt res = SSL_build_cert_chain(
3386*a1157835SDaniel Fojt ssl,
3387*a1157835SDaniel Fojt SSL_BUILD_CHAIN_FLAG_CHECK |
3388*a1157835SDaniel Fojt SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR);
3389*a1157835SDaniel Fojt else
3390*a1157835SDaniel Fojt res = SSL_CTX_build_cert_chain(
3391*a1157835SDaniel Fojt data->ssl,
3392*a1157835SDaniel Fojt SSL_BUILD_CHAIN_FLAG_CHECK |
3393*a1157835SDaniel Fojt SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR);
3394*a1157835SDaniel Fojt if (!res) {
3395*a1157835SDaniel Fojt tls_show_errors(MSG_DEBUG, __func__,
3396*a1157835SDaniel Fojt "Failed to build certificate chain");
3397*a1157835SDaniel Fojt } else if (res == 2) {
3398*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
3399*a1157835SDaniel Fojt "TLS: Ignore certificate chain verification error when building chain with PKCS#12 extra certificates");
3400*a1157835SDaniel Fojt }
3401*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
3402*a1157835SDaniel Fojt /*
3403*a1157835SDaniel Fojt * Try to continue regardless of result since it is possible for
3404*a1157835SDaniel Fojt * the extra certificates not to be required.
3405*a1157835SDaniel Fojt */
3406*a1157835SDaniel Fojt res = 0;
3407*a1157835SDaniel Fojt #else /* OPENSSL_VERSION_NUMBER >= 0x10002000L */
3408*a1157835SDaniel Fojt SSL_CTX_clear_extra_chain_certs(data->ssl);
34096d49e1aeSJan Lentfer while ((cert = sk_X509_pop(certs)) != NULL) {
34106d49e1aeSJan Lentfer X509_NAME_oneline(X509_get_subject_name(cert), buf,
34116d49e1aeSJan Lentfer sizeof(buf));
34126d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: additional certificate"
34136d49e1aeSJan Lentfer " from PKCS12: subject='%s'", buf);
34146d49e1aeSJan Lentfer /*
34156d49e1aeSJan Lentfer * There is no SSL equivalent for the chain cert - so
34166d49e1aeSJan Lentfer * always add it to the context...
34176d49e1aeSJan Lentfer */
3418*a1157835SDaniel Fojt if (SSL_CTX_add_extra_chain_cert(data->ssl, cert) != 1)
3419*a1157835SDaniel Fojt {
3420*a1157835SDaniel Fojt X509_free(cert);
34216d49e1aeSJan Lentfer res = -1;
34226d49e1aeSJan Lentfer break;
34236d49e1aeSJan Lentfer }
34246d49e1aeSJan Lentfer }
3425*a1157835SDaniel Fojt sk_X509_pop_free(certs, X509_free);
3426*a1157835SDaniel Fojt #endif /* OPENSSL_VERSION_NUMBER >= 0x10002000L */
34276d49e1aeSJan Lentfer }
34286d49e1aeSJan Lentfer
34296d49e1aeSJan Lentfer PKCS12_free(p12);
34306d49e1aeSJan Lentfer
34316d49e1aeSJan Lentfer if (res < 0)
3432*a1157835SDaniel Fojt tls_get_errors(data);
34336d49e1aeSJan Lentfer
34346d49e1aeSJan Lentfer return res;
34356d49e1aeSJan Lentfer }
34366d49e1aeSJan Lentfer #endif /* PKCS12_FUNCS */
34376d49e1aeSJan Lentfer
34386d49e1aeSJan Lentfer
tls_read_pkcs12(struct tls_data * data,SSL * ssl,const char * private_key,const char * passwd)3439*a1157835SDaniel Fojt static int tls_read_pkcs12(struct tls_data *data, SSL *ssl,
3440*a1157835SDaniel Fojt const char *private_key, const char *passwd)
34416d49e1aeSJan Lentfer {
34426d49e1aeSJan Lentfer #ifdef PKCS12_FUNCS
34436d49e1aeSJan Lentfer FILE *f;
34446d49e1aeSJan Lentfer PKCS12 *p12;
34456d49e1aeSJan Lentfer
34466d49e1aeSJan Lentfer f = fopen(private_key, "rb");
34476d49e1aeSJan Lentfer if (f == NULL)
34486d49e1aeSJan Lentfer return -1;
34496d49e1aeSJan Lentfer
34506d49e1aeSJan Lentfer p12 = d2i_PKCS12_fp(f, NULL);
34516d49e1aeSJan Lentfer fclose(f);
34526d49e1aeSJan Lentfer
34536d49e1aeSJan Lentfer if (p12 == NULL) {
34546d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
34556d49e1aeSJan Lentfer "Failed to use PKCS#12 file");
34566d49e1aeSJan Lentfer return -1;
34576d49e1aeSJan Lentfer }
34586d49e1aeSJan Lentfer
3459*a1157835SDaniel Fojt return tls_parse_pkcs12(data, ssl, p12, passwd);
34606d49e1aeSJan Lentfer
34616d49e1aeSJan Lentfer #else /* PKCS12_FUNCS */
34626d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: PKCS12 support disabled - cannot read "
34636d49e1aeSJan Lentfer "p12/pfx files");
34646d49e1aeSJan Lentfer return -1;
34656d49e1aeSJan Lentfer #endif /* PKCS12_FUNCS */
34666d49e1aeSJan Lentfer }
34676d49e1aeSJan Lentfer
34686d49e1aeSJan Lentfer
tls_read_pkcs12_blob(struct tls_data * data,SSL * ssl,const u8 * blob,size_t len,const char * passwd)3469*a1157835SDaniel Fojt static int tls_read_pkcs12_blob(struct tls_data *data, SSL *ssl,
34706d49e1aeSJan Lentfer const u8 *blob, size_t len, const char *passwd)
34716d49e1aeSJan Lentfer {
34726d49e1aeSJan Lentfer #ifdef PKCS12_FUNCS
34736d49e1aeSJan Lentfer PKCS12 *p12;
34746d49e1aeSJan Lentfer
3475*a1157835SDaniel Fojt p12 = d2i_PKCS12(NULL, (const unsigned char **) &blob, len);
34766d49e1aeSJan Lentfer if (p12 == NULL) {
34776d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
34786d49e1aeSJan Lentfer "Failed to use PKCS#12 blob");
34796d49e1aeSJan Lentfer return -1;
34806d49e1aeSJan Lentfer }
34816d49e1aeSJan Lentfer
3482*a1157835SDaniel Fojt return tls_parse_pkcs12(data, ssl, p12, passwd);
34836d49e1aeSJan Lentfer
34846d49e1aeSJan Lentfer #else /* PKCS12_FUNCS */
34856d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: PKCS12 support disabled - cannot parse "
34866d49e1aeSJan Lentfer "p12/pfx blobs");
34876d49e1aeSJan Lentfer return -1;
34886d49e1aeSJan Lentfer #endif /* PKCS12_FUNCS */
34896d49e1aeSJan Lentfer }
34906d49e1aeSJan Lentfer
34916d49e1aeSJan Lentfer
34926d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
tls_engine_get_cert(struct tls_connection * conn,const char * cert_id,X509 ** cert)34936d49e1aeSJan Lentfer static int tls_engine_get_cert(struct tls_connection *conn,
34946d49e1aeSJan Lentfer const char *cert_id,
34956d49e1aeSJan Lentfer X509 **cert)
34966d49e1aeSJan Lentfer {
34976d49e1aeSJan Lentfer /* this runs after the private key is loaded so no PIN is required */
34986d49e1aeSJan Lentfer struct {
34996d49e1aeSJan Lentfer const char *cert_id;
35006d49e1aeSJan Lentfer X509 *cert;
35016d49e1aeSJan Lentfer } params;
35026d49e1aeSJan Lentfer params.cert_id = cert_id;
35036d49e1aeSJan Lentfer params.cert = NULL;
35046d49e1aeSJan Lentfer
35056d49e1aeSJan Lentfer if (!ENGINE_ctrl_cmd(conn->engine, "LOAD_CERT_CTRL",
35066d49e1aeSJan Lentfer 0, ¶ms, NULL, 1)) {
3507*a1157835SDaniel Fojt unsigned long err = ERR_get_error();
3508*a1157835SDaniel Fojt
35096d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: cannot load client cert with id"
35106d49e1aeSJan Lentfer " '%s' [%s]", cert_id,
3511*a1157835SDaniel Fojt ERR_error_string(err, NULL));
3512*a1157835SDaniel Fojt if (tls_is_pin_error(err))
3513*a1157835SDaniel Fojt return TLS_SET_PARAMS_ENGINE_PRV_BAD_PIN;
35146d49e1aeSJan Lentfer return TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
35156d49e1aeSJan Lentfer }
35166d49e1aeSJan Lentfer if (!params.cert) {
35176d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "ENGINE: did not properly cert with id"
35186d49e1aeSJan Lentfer " '%s'", cert_id);
35196d49e1aeSJan Lentfer return TLS_SET_PARAMS_ENGINE_PRV_INIT_FAILED;
35206d49e1aeSJan Lentfer }
35216d49e1aeSJan Lentfer *cert = params.cert;
35226d49e1aeSJan Lentfer return 0;
35236d49e1aeSJan Lentfer }
35246d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
35256d49e1aeSJan Lentfer
35266d49e1aeSJan Lentfer
tls_connection_engine_client_cert(struct tls_connection * conn,const char * cert_id)35276d49e1aeSJan Lentfer static int tls_connection_engine_client_cert(struct tls_connection *conn,
35286d49e1aeSJan Lentfer const char *cert_id)
35296d49e1aeSJan Lentfer {
35306d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
35316d49e1aeSJan Lentfer X509 *cert;
35326d49e1aeSJan Lentfer
35336d49e1aeSJan Lentfer if (tls_engine_get_cert(conn, cert_id, &cert))
35346d49e1aeSJan Lentfer return -1;
35356d49e1aeSJan Lentfer
35366d49e1aeSJan Lentfer if (!SSL_use_certificate(conn->ssl, cert)) {
35376d49e1aeSJan Lentfer tls_show_errors(MSG_ERROR, __func__,
35386d49e1aeSJan Lentfer "SSL_use_certificate failed");
35396d49e1aeSJan Lentfer X509_free(cert);
35406d49e1aeSJan Lentfer return -1;
35416d49e1aeSJan Lentfer }
35426d49e1aeSJan Lentfer X509_free(cert);
35436d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "ENGINE: SSL_use_certificate --> "
35446d49e1aeSJan Lentfer "OK");
35456d49e1aeSJan Lentfer return 0;
35466d49e1aeSJan Lentfer
35476d49e1aeSJan Lentfer #else /* OPENSSL_NO_ENGINE */
35486d49e1aeSJan Lentfer return -1;
35496d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
35506d49e1aeSJan Lentfer }
35516d49e1aeSJan Lentfer
35526d49e1aeSJan Lentfer
tls_connection_engine_ca_cert(struct tls_data * data,struct tls_connection * conn,const char * ca_cert_id)3553*a1157835SDaniel Fojt static int tls_connection_engine_ca_cert(struct tls_data *data,
35546d49e1aeSJan Lentfer struct tls_connection *conn,
35556d49e1aeSJan Lentfer const char *ca_cert_id)
35566d49e1aeSJan Lentfer {
35576d49e1aeSJan Lentfer #ifndef OPENSSL_NO_ENGINE
35586d49e1aeSJan Lentfer X509 *cert;
3559*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
3560*a1157835SDaniel Fojt X509_STORE *store;
35616d49e1aeSJan Lentfer
35626d49e1aeSJan Lentfer if (tls_engine_get_cert(conn, ca_cert_id, &cert))
35636d49e1aeSJan Lentfer return -1;
35646d49e1aeSJan Lentfer
35656d49e1aeSJan Lentfer /* start off the same as tls_connection_ca_cert */
3566*a1157835SDaniel Fojt store = X509_STORE_new();
3567*a1157835SDaniel Fojt if (store == NULL) {
35686d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - failed to allocate new "
35696d49e1aeSJan Lentfer "certificate store", __func__);
35706d49e1aeSJan Lentfer X509_free(cert);
35716d49e1aeSJan Lentfer return -1;
35726d49e1aeSJan Lentfer }
3573*a1157835SDaniel Fojt SSL_CTX_set_cert_store(ssl_ctx, store);
3574*a1157835SDaniel Fojt if (!X509_STORE_add_cert(store, cert)) {
35756d49e1aeSJan Lentfer unsigned long err = ERR_peek_error();
35766d49e1aeSJan Lentfer tls_show_errors(MSG_WARNING, __func__,
35776d49e1aeSJan Lentfer "Failed to add CA certificate from engine "
35786d49e1aeSJan Lentfer "to certificate store");
35796d49e1aeSJan Lentfer if (ERR_GET_LIB(err) == ERR_LIB_X509 &&
35806d49e1aeSJan Lentfer ERR_GET_REASON(err) == X509_R_CERT_ALREADY_IN_HASH_TABLE) {
35816d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - ignoring cert"
35826d49e1aeSJan Lentfer " already in hash table error",
35836d49e1aeSJan Lentfer __func__);
35846d49e1aeSJan Lentfer } else {
35856d49e1aeSJan Lentfer X509_free(cert);
35866d49e1aeSJan Lentfer return -1;
35876d49e1aeSJan Lentfer }
35886d49e1aeSJan Lentfer }
35896d49e1aeSJan Lentfer X509_free(cert);
35906d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s - added CA certificate from engine "
35916d49e1aeSJan Lentfer "to certificate store", __func__);
35926d49e1aeSJan Lentfer SSL_set_verify(conn->ssl, SSL_VERIFY_PEER, tls_verify_cb);
35933ff40c12SJohn Marino conn->ca_cert_verify = 1;
35943ff40c12SJohn Marino
35956d49e1aeSJan Lentfer return 0;
35966d49e1aeSJan Lentfer
35976d49e1aeSJan Lentfer #else /* OPENSSL_NO_ENGINE */
35986d49e1aeSJan Lentfer return -1;
35996d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
36006d49e1aeSJan Lentfer }
36016d49e1aeSJan Lentfer
36026d49e1aeSJan Lentfer
tls_connection_engine_private_key(struct tls_connection * conn)36036d49e1aeSJan Lentfer static int tls_connection_engine_private_key(struct tls_connection *conn)
36046d49e1aeSJan Lentfer {
3605*a1157835SDaniel Fojt #if defined(ANDROID) || !defined(OPENSSL_NO_ENGINE)
36066d49e1aeSJan Lentfer if (SSL_use_PrivateKey(conn->ssl, conn->private_key) != 1) {
36076d49e1aeSJan Lentfer tls_show_errors(MSG_ERROR, __func__,
36086d49e1aeSJan Lentfer "ENGINE: cannot use private key for TLS");
36096d49e1aeSJan Lentfer return -1;
36106d49e1aeSJan Lentfer }
36116d49e1aeSJan Lentfer if (!SSL_check_private_key(conn->ssl)) {
36126d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
36136d49e1aeSJan Lentfer "Private key failed verification");
36146d49e1aeSJan Lentfer return -1;
36156d49e1aeSJan Lentfer }
36166d49e1aeSJan Lentfer return 0;
36176d49e1aeSJan Lentfer #else /* OPENSSL_NO_ENGINE */
36186d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "SSL: Configuration uses engine, but "
36196d49e1aeSJan Lentfer "engine support was not compiled in");
36206d49e1aeSJan Lentfer return -1;
36216d49e1aeSJan Lentfer #endif /* OPENSSL_NO_ENGINE */
36226d49e1aeSJan Lentfer }
36236d49e1aeSJan Lentfer
36246d49e1aeSJan Lentfer
3625*a1157835SDaniel Fojt #ifndef OPENSSL_NO_STDIO
tls_passwd_cb(char * buf,int size,int rwflag,void * password)3626*a1157835SDaniel Fojt static int tls_passwd_cb(char *buf, int size, int rwflag, void *password)
3627*a1157835SDaniel Fojt {
3628*a1157835SDaniel Fojt if (!password)
3629*a1157835SDaniel Fojt return 0;
3630*a1157835SDaniel Fojt os_strlcpy(buf, (const char *) password, size);
3631*a1157835SDaniel Fojt return os_strlen(buf);
3632*a1157835SDaniel Fojt }
3633*a1157835SDaniel Fojt #endif /* OPENSSL_NO_STDIO */
3634*a1157835SDaniel Fojt
3635*a1157835SDaniel Fojt
tls_use_private_key_file(struct tls_data * data,SSL * ssl,const char * private_key,const char * private_key_passwd)3636*a1157835SDaniel Fojt static int tls_use_private_key_file(struct tls_data *data, SSL *ssl,
3637*a1157835SDaniel Fojt const char *private_key,
3638*a1157835SDaniel Fojt const char *private_key_passwd)
3639*a1157835SDaniel Fojt {
3640*a1157835SDaniel Fojt #ifndef OPENSSL_NO_STDIO
3641*a1157835SDaniel Fojt BIO *bio;
3642*a1157835SDaniel Fojt EVP_PKEY *pkey;
3643*a1157835SDaniel Fojt int ret;
3644*a1157835SDaniel Fojt
3645*a1157835SDaniel Fojt /* First try ASN.1 (DER). */
3646*a1157835SDaniel Fojt bio = BIO_new_file(private_key, "r");
3647*a1157835SDaniel Fojt if (!bio)
3648*a1157835SDaniel Fojt return -1;
3649*a1157835SDaniel Fojt pkey = d2i_PrivateKey_bio(bio, NULL);
3650*a1157835SDaniel Fojt BIO_free(bio);
3651*a1157835SDaniel Fojt
3652*a1157835SDaniel Fojt if (pkey) {
3653*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: %s (DER) --> loaded", __func__);
3654*a1157835SDaniel Fojt } else {
3655*a1157835SDaniel Fojt /* Try PEM with the provided password. */
3656*a1157835SDaniel Fojt bio = BIO_new_file(private_key, "r");
3657*a1157835SDaniel Fojt if (!bio)
3658*a1157835SDaniel Fojt return -1;
3659*a1157835SDaniel Fojt pkey = PEM_read_bio_PrivateKey(bio, NULL, tls_passwd_cb,
3660*a1157835SDaniel Fojt (void *) private_key_passwd);
3661*a1157835SDaniel Fojt BIO_free(bio);
3662*a1157835SDaniel Fojt if (!pkey)
3663*a1157835SDaniel Fojt return -1;
3664*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: %s (PEM) --> loaded", __func__);
3665*a1157835SDaniel Fojt /* Clear errors from the previous failed load. */
3666*a1157835SDaniel Fojt ERR_clear_error();
3667*a1157835SDaniel Fojt }
3668*a1157835SDaniel Fojt
3669*a1157835SDaniel Fojt if (ssl)
3670*a1157835SDaniel Fojt ret = SSL_use_PrivateKey(ssl, pkey);
3671*a1157835SDaniel Fojt else
3672*a1157835SDaniel Fojt ret = SSL_CTX_use_PrivateKey(data->ssl, pkey);
3673*a1157835SDaniel Fojt
3674*a1157835SDaniel Fojt EVP_PKEY_free(pkey);
3675*a1157835SDaniel Fojt return ret == 1 ? 0 : -1;
3676*a1157835SDaniel Fojt #else /* OPENSSL_NO_STDIO */
3677*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: %s - OPENSSL_NO_STDIO", __func__);
3678*a1157835SDaniel Fojt return -1;
3679*a1157835SDaniel Fojt #endif /* OPENSSL_NO_STDIO */
3680*a1157835SDaniel Fojt }
3681*a1157835SDaniel Fojt
3682*a1157835SDaniel Fojt
tls_connection_private_key(struct tls_data * data,struct tls_connection * conn,const char * private_key,const char * private_key_passwd,const u8 * private_key_blob,size_t private_key_blob_len)3683*a1157835SDaniel Fojt static int tls_connection_private_key(struct tls_data *data,
36846d49e1aeSJan Lentfer struct tls_connection *conn,
36856d49e1aeSJan Lentfer const char *private_key,
36866d49e1aeSJan Lentfer const char *private_key_passwd,
36876d49e1aeSJan Lentfer const u8 *private_key_blob,
36886d49e1aeSJan Lentfer size_t private_key_blob_len)
36896d49e1aeSJan Lentfer {
36906d49e1aeSJan Lentfer int ok;
36916d49e1aeSJan Lentfer
36926d49e1aeSJan Lentfer if (private_key == NULL && private_key_blob == NULL)
36936d49e1aeSJan Lentfer return 0;
36946d49e1aeSJan Lentfer
36956d49e1aeSJan Lentfer ok = 0;
36966d49e1aeSJan Lentfer while (private_key_blob) {
36976d49e1aeSJan Lentfer if (SSL_use_PrivateKey_ASN1(EVP_PKEY_RSA, conn->ssl,
36986d49e1aeSJan Lentfer (u8 *) private_key_blob,
36996d49e1aeSJan Lentfer private_key_blob_len) == 1) {
37006d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_PrivateKey_"
37016d49e1aeSJan Lentfer "ASN1(EVP_PKEY_RSA) --> OK");
37026d49e1aeSJan Lentfer ok = 1;
37036d49e1aeSJan Lentfer break;
37046d49e1aeSJan Lentfer }
37056d49e1aeSJan Lentfer
37066d49e1aeSJan Lentfer if (SSL_use_PrivateKey_ASN1(EVP_PKEY_DSA, conn->ssl,
37076d49e1aeSJan Lentfer (u8 *) private_key_blob,
37086d49e1aeSJan Lentfer private_key_blob_len) == 1) {
37096d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: SSL_use_PrivateKey_"
37106d49e1aeSJan Lentfer "ASN1(EVP_PKEY_DSA) --> OK");
37116d49e1aeSJan Lentfer ok = 1;
37126d49e1aeSJan Lentfer break;
37136d49e1aeSJan Lentfer }
37146d49e1aeSJan Lentfer
37156d49e1aeSJan Lentfer if (SSL_use_RSAPrivateKey_ASN1(conn->ssl,
37166d49e1aeSJan Lentfer (u8 *) private_key_blob,
37176d49e1aeSJan Lentfer private_key_blob_len) == 1) {
37186d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: "
37196d49e1aeSJan Lentfer "SSL_use_RSAPrivateKey_ASN1 --> OK");
37206d49e1aeSJan Lentfer ok = 1;
37216d49e1aeSJan Lentfer break;
37226d49e1aeSJan Lentfer }
37236d49e1aeSJan Lentfer
3724*a1157835SDaniel Fojt if (tls_read_pkcs12_blob(data, conn->ssl, private_key_blob,
3725*a1157835SDaniel Fojt private_key_blob_len,
3726*a1157835SDaniel Fojt private_key_passwd) == 0) {
37276d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: PKCS#12 as blob --> "
37286d49e1aeSJan Lentfer "OK");
37296d49e1aeSJan Lentfer ok = 1;
37306d49e1aeSJan Lentfer break;
37316d49e1aeSJan Lentfer }
37326d49e1aeSJan Lentfer
37336d49e1aeSJan Lentfer break;
37346d49e1aeSJan Lentfer }
37356d49e1aeSJan Lentfer
37366d49e1aeSJan Lentfer while (!ok && private_key) {
3737*a1157835SDaniel Fojt if (tls_use_private_key_file(data, conn->ssl, private_key,
3738*a1157835SDaniel Fojt private_key_passwd) == 0) {
37396d49e1aeSJan Lentfer ok = 1;
37406d49e1aeSJan Lentfer break;
37416d49e1aeSJan Lentfer }
37426d49e1aeSJan Lentfer
3743*a1157835SDaniel Fojt if (tls_read_pkcs12(data, conn->ssl, private_key,
3744*a1157835SDaniel Fojt private_key_passwd) == 0) {
37456d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: Reading PKCS#12 file "
37466d49e1aeSJan Lentfer "--> OK");
37476d49e1aeSJan Lentfer ok = 1;
37486d49e1aeSJan Lentfer break;
37496d49e1aeSJan Lentfer }
37506d49e1aeSJan Lentfer
37516d49e1aeSJan Lentfer if (tls_cryptoapi_cert(conn->ssl, private_key) == 0) {
37526d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: Using CryptoAPI to "
37536d49e1aeSJan Lentfer "access certificate store --> OK");
37546d49e1aeSJan Lentfer ok = 1;
37556d49e1aeSJan Lentfer break;
37566d49e1aeSJan Lentfer }
37576d49e1aeSJan Lentfer
37586d49e1aeSJan Lentfer break;
37596d49e1aeSJan Lentfer }
37606d49e1aeSJan Lentfer
37616d49e1aeSJan Lentfer if (!ok) {
37623ff40c12SJohn Marino tls_show_errors(MSG_INFO, __func__,
37633ff40c12SJohn Marino "Failed to load private key");
37646d49e1aeSJan Lentfer return -1;
37656d49e1aeSJan Lentfer }
37666d49e1aeSJan Lentfer ERR_clear_error();
37676d49e1aeSJan Lentfer
37686d49e1aeSJan Lentfer if (!SSL_check_private_key(conn->ssl)) {
37696d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__, "Private key failed "
37706d49e1aeSJan Lentfer "verification");
37716d49e1aeSJan Lentfer return -1;
37726d49e1aeSJan Lentfer }
37736d49e1aeSJan Lentfer
37746d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: Private key loaded successfully");
37756d49e1aeSJan Lentfer return 0;
37766d49e1aeSJan Lentfer }
37776d49e1aeSJan Lentfer
37786d49e1aeSJan Lentfer
tls_global_private_key(struct tls_data * data,const char * private_key,const char * private_key_passwd)3779*a1157835SDaniel Fojt static int tls_global_private_key(struct tls_data *data,
3780*a1157835SDaniel Fojt const char *private_key,
37816d49e1aeSJan Lentfer const char *private_key_passwd)
37826d49e1aeSJan Lentfer {
3783*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
37846d49e1aeSJan Lentfer
37856d49e1aeSJan Lentfer if (private_key == NULL)
37866d49e1aeSJan Lentfer return 0;
37876d49e1aeSJan Lentfer
3788*a1157835SDaniel Fojt if (tls_use_private_key_file(data, NULL, private_key,
3789*a1157835SDaniel Fojt private_key_passwd) &&
3790*a1157835SDaniel Fojt tls_read_pkcs12(data, NULL, private_key, private_key_passwd)) {
37916d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
37926d49e1aeSJan Lentfer "Failed to load private key");
37936d49e1aeSJan Lentfer ERR_clear_error();
37946d49e1aeSJan Lentfer return -1;
37956d49e1aeSJan Lentfer }
37966d49e1aeSJan Lentfer ERR_clear_error();
37976d49e1aeSJan Lentfer
37986d49e1aeSJan Lentfer if (!SSL_CTX_check_private_key(ssl_ctx)) {
37996d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
38006d49e1aeSJan Lentfer "Private key failed verification");
38016d49e1aeSJan Lentfer return -1;
38026d49e1aeSJan Lentfer }
38036d49e1aeSJan Lentfer
38046d49e1aeSJan Lentfer return 0;
38056d49e1aeSJan Lentfer }
38066d49e1aeSJan Lentfer
38076d49e1aeSJan Lentfer
tls_connection_dh(struct tls_connection * conn,const char * dh_file)38086d49e1aeSJan Lentfer static int tls_connection_dh(struct tls_connection *conn, const char *dh_file)
38096d49e1aeSJan Lentfer {
38106d49e1aeSJan Lentfer #ifdef OPENSSL_NO_DH
38116d49e1aeSJan Lentfer if (dh_file == NULL)
38126d49e1aeSJan Lentfer return 0;
38136d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "TLS: openssl does not include DH support, but "
38146d49e1aeSJan Lentfer "dh_file specified");
38156d49e1aeSJan Lentfer return -1;
38166d49e1aeSJan Lentfer #else /* OPENSSL_NO_DH */
38176d49e1aeSJan Lentfer DH *dh;
38186d49e1aeSJan Lentfer BIO *bio;
38196d49e1aeSJan Lentfer
38206d49e1aeSJan Lentfer /* TODO: add support for dh_blob */
38216d49e1aeSJan Lentfer if (dh_file == NULL)
38226d49e1aeSJan Lentfer return 0;
38236d49e1aeSJan Lentfer if (conn == NULL)
38246d49e1aeSJan Lentfer return -1;
38256d49e1aeSJan Lentfer
38266d49e1aeSJan Lentfer bio = BIO_new_file(dh_file, "r");
38276d49e1aeSJan Lentfer if (bio == NULL) {
38286d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to open DH file '%s': %s",
38296d49e1aeSJan Lentfer dh_file, ERR_error_string(ERR_get_error(), NULL));
38306d49e1aeSJan Lentfer return -1;
38316d49e1aeSJan Lentfer }
38326d49e1aeSJan Lentfer dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
38336d49e1aeSJan Lentfer BIO_free(bio);
38346d49e1aeSJan Lentfer #ifndef OPENSSL_NO_DSA
38356d49e1aeSJan Lentfer while (dh == NULL) {
38366d49e1aeSJan Lentfer DSA *dsa;
38376d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Failed to parse DH file '%s': %s -"
38386d49e1aeSJan Lentfer " trying to parse as DSA params", dh_file,
38396d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
38406d49e1aeSJan Lentfer bio = BIO_new_file(dh_file, "r");
38416d49e1aeSJan Lentfer if (bio == NULL)
38426d49e1aeSJan Lentfer break;
38436d49e1aeSJan Lentfer dsa = PEM_read_bio_DSAparams(bio, NULL, NULL, NULL);
38446d49e1aeSJan Lentfer BIO_free(bio);
38456d49e1aeSJan Lentfer if (!dsa) {
38466d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Failed to parse DSA file "
38476d49e1aeSJan Lentfer "'%s': %s", dh_file,
38486d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
38496d49e1aeSJan Lentfer break;
38506d49e1aeSJan Lentfer }
38516d49e1aeSJan Lentfer
38526d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: DH file in DSA param format");
38536d49e1aeSJan Lentfer dh = DSA_dup_DH(dsa);
38546d49e1aeSJan Lentfer DSA_free(dsa);
38556d49e1aeSJan Lentfer if (dh == NULL) {
38566d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to convert DSA "
38576d49e1aeSJan Lentfer "params into DH params");
38586d49e1aeSJan Lentfer break;
38596d49e1aeSJan Lentfer }
38606d49e1aeSJan Lentfer break;
38616d49e1aeSJan Lentfer }
38626d49e1aeSJan Lentfer #endif /* !OPENSSL_NO_DSA */
38636d49e1aeSJan Lentfer if (dh == NULL) {
38646d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to read/parse DH/DSA file "
38656d49e1aeSJan Lentfer "'%s'", dh_file);
38666d49e1aeSJan Lentfer return -1;
38676d49e1aeSJan Lentfer }
38686d49e1aeSJan Lentfer
38696d49e1aeSJan Lentfer if (SSL_set_tmp_dh(conn->ssl, dh) != 1) {
38706d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to set DH params from '%s': "
38716d49e1aeSJan Lentfer "%s", dh_file,
38726d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
38736d49e1aeSJan Lentfer DH_free(dh);
38746d49e1aeSJan Lentfer return -1;
38756d49e1aeSJan Lentfer }
38766d49e1aeSJan Lentfer DH_free(dh);
38776d49e1aeSJan Lentfer return 0;
38786d49e1aeSJan Lentfer #endif /* OPENSSL_NO_DH */
38796d49e1aeSJan Lentfer }
38806d49e1aeSJan Lentfer
38816d49e1aeSJan Lentfer
tls_global_dh(struct tls_data * data,const char * dh_file)3882*a1157835SDaniel Fojt static int tls_global_dh(struct tls_data *data, const char *dh_file)
38836d49e1aeSJan Lentfer {
38846d49e1aeSJan Lentfer #ifdef OPENSSL_NO_DH
38856d49e1aeSJan Lentfer if (dh_file == NULL)
38866d49e1aeSJan Lentfer return 0;
38876d49e1aeSJan Lentfer wpa_printf(MSG_ERROR, "TLS: openssl does not include DH support, but "
38886d49e1aeSJan Lentfer "dh_file specified");
38896d49e1aeSJan Lentfer return -1;
38906d49e1aeSJan Lentfer #else /* OPENSSL_NO_DH */
3891*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
38926d49e1aeSJan Lentfer DH *dh;
38936d49e1aeSJan Lentfer BIO *bio;
38946d49e1aeSJan Lentfer
38956d49e1aeSJan Lentfer /* TODO: add support for dh_blob */
38966d49e1aeSJan Lentfer if (dh_file == NULL)
38976d49e1aeSJan Lentfer return 0;
38986d49e1aeSJan Lentfer if (ssl_ctx == NULL)
38996d49e1aeSJan Lentfer return -1;
39006d49e1aeSJan Lentfer
39016d49e1aeSJan Lentfer bio = BIO_new_file(dh_file, "r");
39026d49e1aeSJan Lentfer if (bio == NULL) {
39036d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to open DH file '%s': %s",
39046d49e1aeSJan Lentfer dh_file, ERR_error_string(ERR_get_error(), NULL));
39056d49e1aeSJan Lentfer return -1;
39066d49e1aeSJan Lentfer }
39076d49e1aeSJan Lentfer dh = PEM_read_bio_DHparams(bio, NULL, NULL, NULL);
39086d49e1aeSJan Lentfer BIO_free(bio);
39096d49e1aeSJan Lentfer #ifndef OPENSSL_NO_DSA
39106d49e1aeSJan Lentfer while (dh == NULL) {
39116d49e1aeSJan Lentfer DSA *dsa;
39126d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Failed to parse DH file '%s': %s -"
39136d49e1aeSJan Lentfer " trying to parse as DSA params", dh_file,
39146d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
39156d49e1aeSJan Lentfer bio = BIO_new_file(dh_file, "r");
39166d49e1aeSJan Lentfer if (bio == NULL)
39176d49e1aeSJan Lentfer break;
39186d49e1aeSJan Lentfer dsa = PEM_read_bio_DSAparams(bio, NULL, NULL, NULL);
39196d49e1aeSJan Lentfer BIO_free(bio);
39206d49e1aeSJan Lentfer if (!dsa) {
39216d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Failed to parse DSA file "
39226d49e1aeSJan Lentfer "'%s': %s", dh_file,
39236d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
39246d49e1aeSJan Lentfer break;
39256d49e1aeSJan Lentfer }
39266d49e1aeSJan Lentfer
39276d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: DH file in DSA param format");
39286d49e1aeSJan Lentfer dh = DSA_dup_DH(dsa);
39296d49e1aeSJan Lentfer DSA_free(dsa);
39306d49e1aeSJan Lentfer if (dh == NULL) {
39316d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to convert DSA "
39326d49e1aeSJan Lentfer "params into DH params");
39336d49e1aeSJan Lentfer break;
39346d49e1aeSJan Lentfer }
39356d49e1aeSJan Lentfer break;
39366d49e1aeSJan Lentfer }
39376d49e1aeSJan Lentfer #endif /* !OPENSSL_NO_DSA */
39386d49e1aeSJan Lentfer if (dh == NULL) {
39396d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to read/parse DH/DSA file "
39406d49e1aeSJan Lentfer "'%s'", dh_file);
39416d49e1aeSJan Lentfer return -1;
39426d49e1aeSJan Lentfer }
39436d49e1aeSJan Lentfer
39446d49e1aeSJan Lentfer if (SSL_CTX_set_tmp_dh(ssl_ctx, dh) != 1) {
39456d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to set DH params from '%s': "
39466d49e1aeSJan Lentfer "%s", dh_file,
39476d49e1aeSJan Lentfer ERR_error_string(ERR_get_error(), NULL));
39486d49e1aeSJan Lentfer DH_free(dh);
39496d49e1aeSJan Lentfer return -1;
39506d49e1aeSJan Lentfer }
39516d49e1aeSJan Lentfer DH_free(dh);
39526d49e1aeSJan Lentfer return 0;
39536d49e1aeSJan Lentfer #endif /* OPENSSL_NO_DH */
39546d49e1aeSJan Lentfer }
39556d49e1aeSJan Lentfer
39566d49e1aeSJan Lentfer
tls_connection_get_random(void * ssl_ctx,struct tls_connection * conn,struct tls_random * keys)3957*a1157835SDaniel Fojt int tls_connection_get_random(void *ssl_ctx, struct tls_connection *conn,
3958*a1157835SDaniel Fojt struct tls_random *keys)
39596d49e1aeSJan Lentfer {
39606d49e1aeSJan Lentfer SSL *ssl;
39616d49e1aeSJan Lentfer
39626d49e1aeSJan Lentfer if (conn == NULL || keys == NULL)
39636d49e1aeSJan Lentfer return -1;
39646d49e1aeSJan Lentfer ssl = conn->ssl;
3965*a1157835SDaniel Fojt if (ssl == NULL)
39666d49e1aeSJan Lentfer return -1;
39676d49e1aeSJan Lentfer
39686d49e1aeSJan Lentfer os_memset(keys, 0, sizeof(*keys));
3969*a1157835SDaniel Fojt keys->client_random = conn->client_random;
3970*a1157835SDaniel Fojt keys->client_random_len = SSL_get_client_random(
3971*a1157835SDaniel Fojt ssl, conn->client_random, sizeof(conn->client_random));
3972*a1157835SDaniel Fojt keys->server_random = conn->server_random;
3973*a1157835SDaniel Fojt keys->server_random_len = SSL_get_server_random(
3974*a1157835SDaniel Fojt ssl, conn->server_random, sizeof(conn->server_random));
39756d49e1aeSJan Lentfer
39766d49e1aeSJan Lentfer return 0;
39776d49e1aeSJan Lentfer }
39786d49e1aeSJan Lentfer
39796d49e1aeSJan Lentfer
3980*a1157835SDaniel Fojt #ifdef OPENSSL_NEED_EAP_FAST_PRF
openssl_get_keyblock_size(SSL * ssl)3981*a1157835SDaniel Fojt static int openssl_get_keyblock_size(SSL *ssl)
3982*a1157835SDaniel Fojt {
3983*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L || \
3984*a1157835SDaniel Fojt (defined(LIBRESSL_VERSION_NUMBER) && \
3985*a1157835SDaniel Fojt LIBRESSL_VERSION_NUMBER < 0x20700000L)
3986*a1157835SDaniel Fojt const EVP_CIPHER *c;
3987*a1157835SDaniel Fojt const EVP_MD *h;
3988*a1157835SDaniel Fojt int md_size;
3989*a1157835SDaniel Fojt
3990*a1157835SDaniel Fojt if (ssl->enc_read_ctx == NULL || ssl->enc_read_ctx->cipher == NULL ||
3991*a1157835SDaniel Fojt ssl->read_hash == NULL)
3992*a1157835SDaniel Fojt return -1;
3993*a1157835SDaniel Fojt
3994*a1157835SDaniel Fojt c = ssl->enc_read_ctx->cipher;
3995*a1157835SDaniel Fojt h = EVP_MD_CTX_md(ssl->read_hash);
3996*a1157835SDaniel Fojt if (h)
3997*a1157835SDaniel Fojt md_size = EVP_MD_size(h);
3998*a1157835SDaniel Fojt else if (ssl->s3)
3999*a1157835SDaniel Fojt md_size = ssl->s3->tmp.new_mac_secret_size;
4000*a1157835SDaniel Fojt else
4001*a1157835SDaniel Fojt return -1;
4002*a1157835SDaniel Fojt
4003*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: keyblock size: key_len=%d MD_size=%d "
4004*a1157835SDaniel Fojt "IV_len=%d", EVP_CIPHER_key_length(c), md_size,
4005*a1157835SDaniel Fojt EVP_CIPHER_iv_length(c));
4006*a1157835SDaniel Fojt return 2 * (EVP_CIPHER_key_length(c) +
4007*a1157835SDaniel Fojt md_size +
4008*a1157835SDaniel Fojt EVP_CIPHER_iv_length(c));
4009*a1157835SDaniel Fojt #else
4010*a1157835SDaniel Fojt const SSL_CIPHER *ssl_cipher;
4011*a1157835SDaniel Fojt int cipher, digest;
4012*a1157835SDaniel Fojt const EVP_CIPHER *c;
4013*a1157835SDaniel Fojt const EVP_MD *h;
4014*a1157835SDaniel Fojt
4015*a1157835SDaniel Fojt ssl_cipher = SSL_get_current_cipher(ssl);
4016*a1157835SDaniel Fojt if (!ssl_cipher)
4017*a1157835SDaniel Fojt return -1;
4018*a1157835SDaniel Fojt cipher = SSL_CIPHER_get_cipher_nid(ssl_cipher);
4019*a1157835SDaniel Fojt digest = SSL_CIPHER_get_digest_nid(ssl_cipher);
4020*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: cipher nid %d digest nid %d",
4021*a1157835SDaniel Fojt cipher, digest);
4022*a1157835SDaniel Fojt if (cipher < 0 || digest < 0)
4023*a1157835SDaniel Fojt return -1;
4024*a1157835SDaniel Fojt c = EVP_get_cipherbynid(cipher);
4025*a1157835SDaniel Fojt h = EVP_get_digestbynid(digest);
4026*a1157835SDaniel Fojt if (!c || !h)
4027*a1157835SDaniel Fojt return -1;
4028*a1157835SDaniel Fojt
4029*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4030*a1157835SDaniel Fojt "OpenSSL: keyblock size: key_len=%d MD_size=%d IV_len=%d",
4031*a1157835SDaniel Fojt EVP_CIPHER_key_length(c), EVP_MD_size(h),
4032*a1157835SDaniel Fojt EVP_CIPHER_iv_length(c));
4033*a1157835SDaniel Fojt return 2 * (EVP_CIPHER_key_length(c) + EVP_MD_size(h) +
4034*a1157835SDaniel Fojt EVP_CIPHER_iv_length(c));
4035*a1157835SDaniel Fojt #endif
4036*a1157835SDaniel Fojt }
4037*a1157835SDaniel Fojt #endif /* OPENSSL_NEED_EAP_FAST_PRF */
4038*a1157835SDaniel Fojt
4039*a1157835SDaniel Fojt
tls_connection_export_key(void * tls_ctx,struct tls_connection * conn,const char * label,const u8 * context,size_t context_len,u8 * out,size_t out_len)4040*a1157835SDaniel Fojt int tls_connection_export_key(void *tls_ctx, struct tls_connection *conn,
4041*a1157835SDaniel Fojt const char *label, const u8 *context,
4042*a1157835SDaniel Fojt size_t context_len, u8 *out, size_t out_len)
4043*a1157835SDaniel Fojt {
4044*a1157835SDaniel Fojt if (!conn ||
4045*a1157835SDaniel Fojt SSL_export_keying_material(conn->ssl, out, out_len, label,
4046*a1157835SDaniel Fojt os_strlen(label), context, context_len,
4047*a1157835SDaniel Fojt context != NULL) != 1)
4048*a1157835SDaniel Fojt return -1;
4049*a1157835SDaniel Fojt return 0;
4050*a1157835SDaniel Fojt }
4051*a1157835SDaniel Fojt
4052*a1157835SDaniel Fojt
tls_connection_get_eap_fast_key(void * tls_ctx,struct tls_connection * conn,u8 * out,size_t out_len)4053*a1157835SDaniel Fojt int tls_connection_get_eap_fast_key(void *tls_ctx, struct tls_connection *conn,
40546d49e1aeSJan Lentfer u8 *out, size_t out_len)
40556d49e1aeSJan Lentfer {
4056*a1157835SDaniel Fojt #ifdef OPENSSL_NEED_EAP_FAST_PRF
40573ff40c12SJohn Marino SSL *ssl;
4058*a1157835SDaniel Fojt SSL_SESSION *sess;
4059*a1157835SDaniel Fojt u8 *rnd;
4060*a1157835SDaniel Fojt int ret = -1;
4061*a1157835SDaniel Fojt int skip = 0;
4062*a1157835SDaniel Fojt u8 *tmp_out = NULL;
4063*a1157835SDaniel Fojt u8 *_out = out;
4064*a1157835SDaniel Fojt unsigned char client_random[SSL3_RANDOM_SIZE];
4065*a1157835SDaniel Fojt unsigned char server_random[SSL3_RANDOM_SIZE];
4066*a1157835SDaniel Fojt unsigned char master_key[64];
4067*a1157835SDaniel Fojt size_t master_key_len;
4068*a1157835SDaniel Fojt const char *ver;
4069*a1157835SDaniel Fojt
4070*a1157835SDaniel Fojt /*
4071*a1157835SDaniel Fojt * TLS library did not support EAP-FAST key generation, so get the
4072*a1157835SDaniel Fojt * needed TLS session parameters and use an internal implementation of
4073*a1157835SDaniel Fojt * TLS PRF to derive the key.
4074*a1157835SDaniel Fojt */
4075*a1157835SDaniel Fojt
40763ff40c12SJohn Marino if (conn == NULL)
40773ff40c12SJohn Marino return -1;
40783ff40c12SJohn Marino ssl = conn->ssl;
4079*a1157835SDaniel Fojt if (ssl == NULL)
40806d49e1aeSJan Lentfer return -1;
4081*a1157835SDaniel Fojt ver = SSL_get_version(ssl);
4082*a1157835SDaniel Fojt sess = SSL_get_session(ssl);
4083*a1157835SDaniel Fojt if (!ver || !sess)
4084*a1157835SDaniel Fojt return -1;
4085*a1157835SDaniel Fojt
4086*a1157835SDaniel Fojt skip = openssl_get_keyblock_size(ssl);
4087*a1157835SDaniel Fojt if (skip < 0)
4088*a1157835SDaniel Fojt return -1;
4089*a1157835SDaniel Fojt tmp_out = os_malloc(skip + out_len);
4090*a1157835SDaniel Fojt if (!tmp_out)
4091*a1157835SDaniel Fojt return -1;
4092*a1157835SDaniel Fojt _out = tmp_out;
4093*a1157835SDaniel Fojt
4094*a1157835SDaniel Fojt rnd = os_malloc(2 * SSL3_RANDOM_SIZE);
4095*a1157835SDaniel Fojt if (!rnd) {
4096*a1157835SDaniel Fojt os_free(tmp_out);
4097*a1157835SDaniel Fojt return -1;
4098*a1157835SDaniel Fojt }
4099*a1157835SDaniel Fojt
4100*a1157835SDaniel Fojt SSL_get_client_random(ssl, client_random, sizeof(client_random));
4101*a1157835SDaniel Fojt SSL_get_server_random(ssl, server_random, sizeof(server_random));
4102*a1157835SDaniel Fojt master_key_len = SSL_SESSION_get_master_key(sess, master_key,
4103*a1157835SDaniel Fojt sizeof(master_key));
4104*a1157835SDaniel Fojt
4105*a1157835SDaniel Fojt os_memcpy(rnd, server_random, SSL3_RANDOM_SIZE);
4106*a1157835SDaniel Fojt os_memcpy(rnd + SSL3_RANDOM_SIZE, client_random, SSL3_RANDOM_SIZE);
4107*a1157835SDaniel Fojt
4108*a1157835SDaniel Fojt if (os_strcmp(ver, "TLSv1.2") == 0) {
4109*a1157835SDaniel Fojt tls_prf_sha256(master_key, master_key_len,
4110*a1157835SDaniel Fojt "key expansion", rnd, 2 * SSL3_RANDOM_SIZE,
4111*a1157835SDaniel Fojt _out, skip + out_len);
4112*a1157835SDaniel Fojt ret = 0;
4113*a1157835SDaniel Fojt } else if (tls_prf_sha1_md5(master_key, master_key_len,
4114*a1157835SDaniel Fojt "key expansion", rnd, 2 * SSL3_RANDOM_SIZE,
4115*a1157835SDaniel Fojt _out, skip + out_len) == 0) {
4116*a1157835SDaniel Fojt ret = 0;
4117*a1157835SDaniel Fojt }
4118*a1157835SDaniel Fojt forced_memzero(master_key, sizeof(master_key));
4119*a1157835SDaniel Fojt os_free(rnd);
4120*a1157835SDaniel Fojt if (ret == 0)
4121*a1157835SDaniel Fojt os_memcpy(out, _out + skip, out_len);
4122*a1157835SDaniel Fojt bin_clear_free(tmp_out, skip);
4123*a1157835SDaniel Fojt
4124*a1157835SDaniel Fojt return ret;
4125*a1157835SDaniel Fojt #else /* OPENSSL_NEED_EAP_FAST_PRF */
4126*a1157835SDaniel Fojt wpa_printf(MSG_ERROR,
4127*a1157835SDaniel Fojt "OpenSSL: EAP-FAST keys cannot be exported in FIPS mode");
4128*a1157835SDaniel Fojt return -1;
4129*a1157835SDaniel Fojt #endif /* OPENSSL_NEED_EAP_FAST_PRF */
41306d49e1aeSJan Lentfer }
41316d49e1aeSJan Lentfer
41326d49e1aeSJan Lentfer
41333ff40c12SJohn Marino static struct wpabuf *
openssl_handshake(struct tls_connection * conn,const struct wpabuf * in_data)4134*a1157835SDaniel Fojt openssl_handshake(struct tls_connection *conn, const struct wpabuf *in_data)
41356d49e1aeSJan Lentfer {
41366d49e1aeSJan Lentfer int res;
41373ff40c12SJohn Marino struct wpabuf *out_data;
41386d49e1aeSJan Lentfer
41396d49e1aeSJan Lentfer /*
41406d49e1aeSJan Lentfer * Give TLS handshake data from the server (if available) to OpenSSL
41416d49e1aeSJan Lentfer * for processing.
41426d49e1aeSJan Lentfer */
4143*a1157835SDaniel Fojt if (in_data && wpabuf_len(in_data) > 0 &&
41443ff40c12SJohn Marino BIO_write(conn->ssl_in, wpabuf_head(in_data), wpabuf_len(in_data))
41453ff40c12SJohn Marino < 0) {
41466d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
41476d49e1aeSJan Lentfer "Handshake failed - BIO_write");
41486d49e1aeSJan Lentfer return NULL;
41496d49e1aeSJan Lentfer }
41506d49e1aeSJan Lentfer
41516d49e1aeSJan Lentfer /* Initiate TLS handshake or continue the existing handshake */
4152*a1157835SDaniel Fojt if (conn->server)
41533ff40c12SJohn Marino res = SSL_accept(conn->ssl);
41543ff40c12SJohn Marino else
41556d49e1aeSJan Lentfer res = SSL_connect(conn->ssl);
41566d49e1aeSJan Lentfer if (res != 1) {
41576d49e1aeSJan Lentfer int err = SSL_get_error(conn->ssl, res);
41586d49e1aeSJan Lentfer if (err == SSL_ERROR_WANT_READ)
41596d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: SSL_connect - want "
41606d49e1aeSJan Lentfer "more data");
41616d49e1aeSJan Lentfer else if (err == SSL_ERROR_WANT_WRITE)
41626d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: SSL_connect - want to "
41636d49e1aeSJan Lentfer "write");
41646d49e1aeSJan Lentfer else {
41656d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__, "SSL_connect");
41666d49e1aeSJan Lentfer conn->failed++;
4167*a1157835SDaniel Fojt if (!conn->server && !conn->client_hello_generated) {
4168*a1157835SDaniel Fojt /* The server would not understand TLS Alert
4169*a1157835SDaniel Fojt * before ClientHello, so simply terminate
4170*a1157835SDaniel Fojt * handshake on this type of error case caused
4171*a1157835SDaniel Fojt * by a likely internal error like no ciphers
4172*a1157835SDaniel Fojt * available. */
4173*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4174*a1157835SDaniel Fojt "OpenSSL: Could not generate ClientHello");
4175*a1157835SDaniel Fojt conn->write_alerts++;
4176*a1157835SDaniel Fojt return NULL;
41776d49e1aeSJan Lentfer }
41786d49e1aeSJan Lentfer }
4179*a1157835SDaniel Fojt }
4180*a1157835SDaniel Fojt
4181*a1157835SDaniel Fojt if (!conn->server && !conn->failed)
4182*a1157835SDaniel Fojt conn->client_hello_generated = 1;
4183*a1157835SDaniel Fojt
4184*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
4185*a1157835SDaniel Fojt if ((conn->flags & TLS_CONN_SUITEB) && !conn->server &&
4186*a1157835SDaniel Fojt os_strncmp(SSL_get_cipher(conn->ssl), "DHE-", 4) == 0 &&
4187*a1157835SDaniel Fojt conn->server_dh_prime_len < 3072) {
4188*a1157835SDaniel Fojt struct tls_context *context = conn->context;
4189*a1157835SDaniel Fojt
4190*a1157835SDaniel Fojt /*
4191*a1157835SDaniel Fojt * This should not be reached since earlier cert_cb should have
4192*a1157835SDaniel Fojt * terminated the handshake. Keep this check here for extra
4193*a1157835SDaniel Fojt * protection if anything goes wrong with the more low-level
4194*a1157835SDaniel Fojt * checks based on having to parse the TLS handshake messages.
4195*a1157835SDaniel Fojt */
4196*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4197*a1157835SDaniel Fojt "OpenSSL: Server DH prime length: %d bits",
4198*a1157835SDaniel Fojt conn->server_dh_prime_len);
4199*a1157835SDaniel Fojt
4200*a1157835SDaniel Fojt if (context->event_cb) {
4201*a1157835SDaniel Fojt union tls_event_data ev;
4202*a1157835SDaniel Fojt
4203*a1157835SDaniel Fojt os_memset(&ev, 0, sizeof(ev));
4204*a1157835SDaniel Fojt ev.alert.is_local = 1;
4205*a1157835SDaniel Fojt ev.alert.type = "fatal";
4206*a1157835SDaniel Fojt ev.alert.description = "insufficient security";
4207*a1157835SDaniel Fojt context->event_cb(context->cb_ctx, TLS_ALERT, &ev);
4208*a1157835SDaniel Fojt }
4209*a1157835SDaniel Fojt /*
4210*a1157835SDaniel Fojt * Could send a TLS Alert to the server, but for now, simply
4211*a1157835SDaniel Fojt * terminate handshake.
4212*a1157835SDaniel Fojt */
4213*a1157835SDaniel Fojt conn->failed++;
4214*a1157835SDaniel Fojt conn->write_alerts++;
4215*a1157835SDaniel Fojt return NULL;
4216*a1157835SDaniel Fojt }
4217*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
42186d49e1aeSJan Lentfer
42196d49e1aeSJan Lentfer /* Get the TLS handshake data to be sent to the server */
42206d49e1aeSJan Lentfer res = BIO_ctrl_pending(conn->ssl_out);
42216d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: %d bytes pending from ssl_out", res);
42223ff40c12SJohn Marino out_data = wpabuf_alloc(res);
42236d49e1aeSJan Lentfer if (out_data == NULL) {
42246d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: Failed to allocate memory for "
42256d49e1aeSJan Lentfer "handshake output (%d bytes)", res);
42266d49e1aeSJan Lentfer if (BIO_reset(conn->ssl_out) < 0) {
42276d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
42286d49e1aeSJan Lentfer "BIO_reset failed");
42296d49e1aeSJan Lentfer }
42306d49e1aeSJan Lentfer return NULL;
42316d49e1aeSJan Lentfer }
42323ff40c12SJohn Marino res = res == 0 ? 0 : BIO_read(conn->ssl_out, wpabuf_mhead(out_data),
42333ff40c12SJohn Marino res);
42346d49e1aeSJan Lentfer if (res < 0) {
42356d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
42366d49e1aeSJan Lentfer "Handshake failed - BIO_read");
42376d49e1aeSJan Lentfer if (BIO_reset(conn->ssl_out) < 0) {
42386d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
42396d49e1aeSJan Lentfer "BIO_reset failed");
42406d49e1aeSJan Lentfer }
42413ff40c12SJohn Marino wpabuf_free(out_data);
42426d49e1aeSJan Lentfer return NULL;
42436d49e1aeSJan Lentfer }
42443ff40c12SJohn Marino wpabuf_put(out_data, res);
42456d49e1aeSJan Lentfer
42463ff40c12SJohn Marino return out_data;
42473ff40c12SJohn Marino }
42483ff40c12SJohn Marino
42493ff40c12SJohn Marino
42503ff40c12SJohn Marino static struct wpabuf *
openssl_get_appl_data(struct tls_connection * conn,size_t max_len)42513ff40c12SJohn Marino openssl_get_appl_data(struct tls_connection *conn, size_t max_len)
42523ff40c12SJohn Marino {
42533ff40c12SJohn Marino struct wpabuf *appl_data;
42543ff40c12SJohn Marino int res;
42553ff40c12SJohn Marino
42563ff40c12SJohn Marino appl_data = wpabuf_alloc(max_len + 100);
42573ff40c12SJohn Marino if (appl_data == NULL)
42583ff40c12SJohn Marino return NULL;
42593ff40c12SJohn Marino
42603ff40c12SJohn Marino res = SSL_read(conn->ssl, wpabuf_mhead(appl_data),
42613ff40c12SJohn Marino wpabuf_size(appl_data));
42626d49e1aeSJan Lentfer if (res < 0) {
42636d49e1aeSJan Lentfer int err = SSL_get_error(conn->ssl, res);
42646d49e1aeSJan Lentfer if (err == SSL_ERROR_WANT_READ ||
42656d49e1aeSJan Lentfer err == SSL_ERROR_WANT_WRITE) {
42663ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "SSL: No Application Data "
42676d49e1aeSJan Lentfer "included");
42686d49e1aeSJan Lentfer } else {
42696d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
42703ff40c12SJohn Marino "Failed to read possible "
42716d49e1aeSJan Lentfer "Application Data");
42726d49e1aeSJan Lentfer }
42733ff40c12SJohn Marino wpabuf_free(appl_data);
42743ff40c12SJohn Marino return NULL;
42753ff40c12SJohn Marino }
42763ff40c12SJohn Marino
42773ff40c12SJohn Marino wpabuf_put(appl_data, res);
42783ff40c12SJohn Marino wpa_hexdump_buf_key(MSG_MSGDUMP, "SSL: Application Data in Finished "
42793ff40c12SJohn Marino "message", appl_data);
42803ff40c12SJohn Marino
42813ff40c12SJohn Marino return appl_data;
42823ff40c12SJohn Marino }
42833ff40c12SJohn Marino
42843ff40c12SJohn Marino
42853ff40c12SJohn Marino static struct wpabuf *
openssl_connection_handshake(struct tls_connection * conn,const struct wpabuf * in_data,struct wpabuf ** appl_data)42863ff40c12SJohn Marino openssl_connection_handshake(struct tls_connection *conn,
42873ff40c12SJohn Marino const struct wpabuf *in_data,
4288*a1157835SDaniel Fojt struct wpabuf **appl_data)
42893ff40c12SJohn Marino {
42903ff40c12SJohn Marino struct wpabuf *out_data;
42913ff40c12SJohn Marino
42923ff40c12SJohn Marino if (appl_data)
42936d49e1aeSJan Lentfer *appl_data = NULL;
42943ff40c12SJohn Marino
4295*a1157835SDaniel Fojt out_data = openssl_handshake(conn, in_data);
42963ff40c12SJohn Marino if (out_data == NULL)
42973ff40c12SJohn Marino return NULL;
4298*a1157835SDaniel Fojt if (conn->invalid_hb_used) {
4299*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "TLS: Heartbeat attack detected - do not send response");
4300*a1157835SDaniel Fojt wpabuf_free(out_data);
4301*a1157835SDaniel Fojt return NULL;
4302*a1157835SDaniel Fojt }
43033ff40c12SJohn Marino
4304*a1157835SDaniel Fojt if (SSL_is_init_finished(conn->ssl)) {
4305*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4306*a1157835SDaniel Fojt "OpenSSL: Handshake finished - resumed=%d",
4307*a1157835SDaniel Fojt tls_connection_resumed(conn->ssl_ctx, conn));
4308*a1157835SDaniel Fojt if (conn->server) {
4309*a1157835SDaniel Fojt char *buf;
4310*a1157835SDaniel Fojt size_t buflen = 2000;
4311*a1157835SDaniel Fojt
4312*a1157835SDaniel Fojt buf = os_malloc(buflen);
4313*a1157835SDaniel Fojt if (buf) {
4314*a1157835SDaniel Fojt if (SSL_get_shared_ciphers(conn->ssl, buf,
4315*a1157835SDaniel Fojt buflen)) {
4316*a1157835SDaniel Fojt buf[buflen - 1] = '\0';
4317*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4318*a1157835SDaniel Fojt "OpenSSL: Shared ciphers: %s",
4319*a1157835SDaniel Fojt buf);
4320*a1157835SDaniel Fojt }
4321*a1157835SDaniel Fojt os_free(buf);
4322*a1157835SDaniel Fojt }
4323*a1157835SDaniel Fojt }
4324*a1157835SDaniel Fojt if (appl_data && in_data)
4325*a1157835SDaniel Fojt *appl_data = openssl_get_appl_data(conn,
4326*a1157835SDaniel Fojt wpabuf_len(in_data));
4327*a1157835SDaniel Fojt }
4328*a1157835SDaniel Fojt
4329*a1157835SDaniel Fojt if (conn->invalid_hb_used) {
4330*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "TLS: Heartbeat attack detected - do not send response");
4331*a1157835SDaniel Fojt if (appl_data) {
4332*a1157835SDaniel Fojt wpabuf_free(*appl_data);
4333*a1157835SDaniel Fojt *appl_data = NULL;
4334*a1157835SDaniel Fojt }
4335*a1157835SDaniel Fojt wpabuf_free(out_data);
4336*a1157835SDaniel Fojt return NULL;
4337*a1157835SDaniel Fojt }
43386d49e1aeSJan Lentfer
43396d49e1aeSJan Lentfer return out_data;
43406d49e1aeSJan Lentfer }
43416d49e1aeSJan Lentfer
43426d49e1aeSJan Lentfer
43433ff40c12SJohn Marino struct wpabuf *
tls_connection_handshake(void * ssl_ctx,struct tls_connection * conn,const struct wpabuf * in_data,struct wpabuf ** appl_data)43443ff40c12SJohn Marino tls_connection_handshake(void *ssl_ctx, struct tls_connection *conn,
43453ff40c12SJohn Marino const struct wpabuf *in_data,
43463ff40c12SJohn Marino struct wpabuf **appl_data)
43473ff40c12SJohn Marino {
4348*a1157835SDaniel Fojt return openssl_connection_handshake(conn, in_data, appl_data);
43493ff40c12SJohn Marino }
43503ff40c12SJohn Marino
43513ff40c12SJohn Marino
tls_connection_server_handshake(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data,struct wpabuf ** appl_data)43523ff40c12SJohn Marino struct wpabuf * tls_connection_server_handshake(void *tls_ctx,
43536d49e1aeSJan Lentfer struct tls_connection *conn,
43543ff40c12SJohn Marino const struct wpabuf *in_data,
43553ff40c12SJohn Marino struct wpabuf **appl_data)
43563ff40c12SJohn Marino {
4357*a1157835SDaniel Fojt conn->server = 1;
4358*a1157835SDaniel Fojt return openssl_connection_handshake(conn, in_data, appl_data);
43593ff40c12SJohn Marino }
43603ff40c12SJohn Marino
43613ff40c12SJohn Marino
tls_connection_encrypt(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data)43623ff40c12SJohn Marino struct wpabuf * tls_connection_encrypt(void *tls_ctx,
43633ff40c12SJohn Marino struct tls_connection *conn,
43643ff40c12SJohn Marino const struct wpabuf *in_data)
43656d49e1aeSJan Lentfer {
43666d49e1aeSJan Lentfer int res;
43673ff40c12SJohn Marino struct wpabuf *buf;
43686d49e1aeSJan Lentfer
43696d49e1aeSJan Lentfer if (conn == NULL)
43703ff40c12SJohn Marino return NULL;
43716d49e1aeSJan Lentfer
43726d49e1aeSJan Lentfer /* Give plaintext data for OpenSSL to encrypt into the TLS tunnel. */
43736d49e1aeSJan Lentfer if ((res = BIO_reset(conn->ssl_in)) < 0 ||
43746d49e1aeSJan Lentfer (res = BIO_reset(conn->ssl_out)) < 0) {
43756d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__, "BIO_reset failed");
43763ff40c12SJohn Marino return NULL;
43776d49e1aeSJan Lentfer }
43783ff40c12SJohn Marino res = SSL_write(conn->ssl, wpabuf_head(in_data), wpabuf_len(in_data));
43796d49e1aeSJan Lentfer if (res < 0) {
43806d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
43816d49e1aeSJan Lentfer "Encryption failed - SSL_write");
43823ff40c12SJohn Marino return NULL;
43836d49e1aeSJan Lentfer }
43846d49e1aeSJan Lentfer
43856d49e1aeSJan Lentfer /* Read encrypted data to be sent to the server */
43863ff40c12SJohn Marino buf = wpabuf_alloc(wpabuf_len(in_data) + 300);
43873ff40c12SJohn Marino if (buf == NULL)
43883ff40c12SJohn Marino return NULL;
43893ff40c12SJohn Marino res = BIO_read(conn->ssl_out, wpabuf_mhead(buf), wpabuf_size(buf));
43906d49e1aeSJan Lentfer if (res < 0) {
43916d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
43926d49e1aeSJan Lentfer "Encryption failed - BIO_read");
43933ff40c12SJohn Marino wpabuf_free(buf);
43943ff40c12SJohn Marino return NULL;
43956d49e1aeSJan Lentfer }
43963ff40c12SJohn Marino wpabuf_put(buf, res);
43976d49e1aeSJan Lentfer
43983ff40c12SJohn Marino return buf;
43996d49e1aeSJan Lentfer }
44006d49e1aeSJan Lentfer
44016d49e1aeSJan Lentfer
tls_connection_decrypt(void * tls_ctx,struct tls_connection * conn,const struct wpabuf * in_data)44023ff40c12SJohn Marino struct wpabuf * tls_connection_decrypt(void *tls_ctx,
44033ff40c12SJohn Marino struct tls_connection *conn,
44043ff40c12SJohn Marino const struct wpabuf *in_data)
44056d49e1aeSJan Lentfer {
44066d49e1aeSJan Lentfer int res;
44073ff40c12SJohn Marino struct wpabuf *buf;
44086d49e1aeSJan Lentfer
44096d49e1aeSJan Lentfer /* Give encrypted data from TLS tunnel for OpenSSL to decrypt. */
44103ff40c12SJohn Marino res = BIO_write(conn->ssl_in, wpabuf_head(in_data),
44113ff40c12SJohn Marino wpabuf_len(in_data));
44126d49e1aeSJan Lentfer if (res < 0) {
44136d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
44146d49e1aeSJan Lentfer "Decryption failed - BIO_write");
44153ff40c12SJohn Marino return NULL;
44166d49e1aeSJan Lentfer }
44176d49e1aeSJan Lentfer if (BIO_reset(conn->ssl_out) < 0) {
44186d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__, "BIO_reset failed");
44193ff40c12SJohn Marino return NULL;
44206d49e1aeSJan Lentfer }
44216d49e1aeSJan Lentfer
44226d49e1aeSJan Lentfer /* Read decrypted data for further processing */
44233ff40c12SJohn Marino /*
44243ff40c12SJohn Marino * Even though we try to disable TLS compression, it is possible that
44253ff40c12SJohn Marino * this cannot be done with all TLS libraries. Add extra buffer space
44263ff40c12SJohn Marino * to handle the possibility of the decrypted data being longer than
44273ff40c12SJohn Marino * input data.
44283ff40c12SJohn Marino */
44293ff40c12SJohn Marino buf = wpabuf_alloc((wpabuf_len(in_data) + 500) * 3);
44303ff40c12SJohn Marino if (buf == NULL)
44313ff40c12SJohn Marino return NULL;
44323ff40c12SJohn Marino res = SSL_read(conn->ssl, wpabuf_mhead(buf), wpabuf_size(buf));
44336d49e1aeSJan Lentfer if (res < 0) {
44346d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
44356d49e1aeSJan Lentfer "Decryption failed - SSL_read");
44363ff40c12SJohn Marino wpabuf_free(buf);
44373ff40c12SJohn Marino return NULL;
44386d49e1aeSJan Lentfer }
44393ff40c12SJohn Marino wpabuf_put(buf, res);
44406d49e1aeSJan Lentfer
4441*a1157835SDaniel Fojt if (conn->invalid_hb_used) {
4442*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "TLS: Heartbeat attack detected - do not send response");
4443*a1157835SDaniel Fojt wpabuf_free(buf);
4444*a1157835SDaniel Fojt return NULL;
4445*a1157835SDaniel Fojt }
4446*a1157835SDaniel Fojt
44473ff40c12SJohn Marino return buf;
44486d49e1aeSJan Lentfer }
44496d49e1aeSJan Lentfer
44506d49e1aeSJan Lentfer
tls_connection_resumed(void * ssl_ctx,struct tls_connection * conn)44516d49e1aeSJan Lentfer int tls_connection_resumed(void *ssl_ctx, struct tls_connection *conn)
44526d49e1aeSJan Lentfer {
4453*a1157835SDaniel Fojt return conn ? SSL_session_reused(conn->ssl) : 0;
44546d49e1aeSJan Lentfer }
44556d49e1aeSJan Lentfer
44566d49e1aeSJan Lentfer
tls_connection_set_cipher_list(void * tls_ctx,struct tls_connection * conn,u8 * ciphers)44576d49e1aeSJan Lentfer int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn,
44586d49e1aeSJan Lentfer u8 *ciphers)
44596d49e1aeSJan Lentfer {
4460*a1157835SDaniel Fojt char buf[500], *pos, *end;
44616d49e1aeSJan Lentfer u8 *c;
44626d49e1aeSJan Lentfer int ret;
44636d49e1aeSJan Lentfer
44646d49e1aeSJan Lentfer if (conn == NULL || conn->ssl == NULL || ciphers == NULL)
44656d49e1aeSJan Lentfer return -1;
44666d49e1aeSJan Lentfer
44676d49e1aeSJan Lentfer buf[0] = '\0';
44686d49e1aeSJan Lentfer pos = buf;
44696d49e1aeSJan Lentfer end = pos + sizeof(buf);
44706d49e1aeSJan Lentfer
44716d49e1aeSJan Lentfer c = ciphers;
44726d49e1aeSJan Lentfer while (*c != TLS_CIPHER_NONE) {
44736d49e1aeSJan Lentfer const char *suite;
44746d49e1aeSJan Lentfer
44756d49e1aeSJan Lentfer switch (*c) {
44766d49e1aeSJan Lentfer case TLS_CIPHER_RC4_SHA:
44776d49e1aeSJan Lentfer suite = "RC4-SHA";
44786d49e1aeSJan Lentfer break;
44796d49e1aeSJan Lentfer case TLS_CIPHER_AES128_SHA:
44806d49e1aeSJan Lentfer suite = "AES128-SHA";
44816d49e1aeSJan Lentfer break;
44826d49e1aeSJan Lentfer case TLS_CIPHER_RSA_DHE_AES128_SHA:
44836d49e1aeSJan Lentfer suite = "DHE-RSA-AES128-SHA";
44846d49e1aeSJan Lentfer break;
44856d49e1aeSJan Lentfer case TLS_CIPHER_ANON_DH_AES128_SHA:
44866d49e1aeSJan Lentfer suite = "ADH-AES128-SHA";
44876d49e1aeSJan Lentfer break;
4488*a1157835SDaniel Fojt case TLS_CIPHER_RSA_DHE_AES256_SHA:
4489*a1157835SDaniel Fojt suite = "DHE-RSA-AES256-SHA";
4490*a1157835SDaniel Fojt break;
4491*a1157835SDaniel Fojt case TLS_CIPHER_AES256_SHA:
4492*a1157835SDaniel Fojt suite = "AES256-SHA";
4493*a1157835SDaniel Fojt break;
44946d49e1aeSJan Lentfer default:
44956d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Unsupported "
44966d49e1aeSJan Lentfer "cipher selection: %d", *c);
44976d49e1aeSJan Lentfer return -1;
44986d49e1aeSJan Lentfer }
44996d49e1aeSJan Lentfer ret = os_snprintf(pos, end - pos, ":%s", suite);
4500*a1157835SDaniel Fojt if (os_snprintf_error(end - pos, ret))
45016d49e1aeSJan Lentfer break;
45026d49e1aeSJan Lentfer pos += ret;
45036d49e1aeSJan Lentfer
45046d49e1aeSJan Lentfer c++;
45056d49e1aeSJan Lentfer }
4506*a1157835SDaniel Fojt if (!buf[0]) {
4507*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: No ciphers listed");
4508*a1157835SDaniel Fojt return -1;
4509*a1157835SDaniel Fojt }
45106d49e1aeSJan Lentfer
45116d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: cipher suites: %s", buf + 1);
45126d49e1aeSJan Lentfer
4513*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
4514*a1157835SDaniel Fojt #ifdef EAP_FAST_OR_TEAP
4515*a1157835SDaniel Fojt if (os_strstr(buf, ":ADH-")) {
4516*a1157835SDaniel Fojt /*
4517*a1157835SDaniel Fojt * Need to drop to security level 0 to allow anonymous
4518*a1157835SDaniel Fojt * cipher suites for EAP-FAST.
4519*a1157835SDaniel Fojt */
4520*a1157835SDaniel Fojt SSL_set_security_level(conn->ssl, 0);
4521*a1157835SDaniel Fojt } else if (SSL_get_security_level(conn->ssl) == 0) {
4522*a1157835SDaniel Fojt /* Force at least security level 1 */
4523*a1157835SDaniel Fojt SSL_set_security_level(conn->ssl, 1);
4524*a1157835SDaniel Fojt }
4525*a1157835SDaniel Fojt #endif /* EAP_FAST_OR_TEAP */
4526*a1157835SDaniel Fojt #endif
4527*a1157835SDaniel Fojt
45286d49e1aeSJan Lentfer if (SSL_set_cipher_list(conn->ssl, buf + 1) != 1) {
45296d49e1aeSJan Lentfer tls_show_errors(MSG_INFO, __func__,
45306d49e1aeSJan Lentfer "Cipher suite configuration failed");
45316d49e1aeSJan Lentfer return -1;
45326d49e1aeSJan Lentfer }
45336d49e1aeSJan Lentfer
45346d49e1aeSJan Lentfer return 0;
45356d49e1aeSJan Lentfer }
45366d49e1aeSJan Lentfer
45376d49e1aeSJan Lentfer
tls_get_version(void * ssl_ctx,struct tls_connection * conn,char * buf,size_t buflen)4538*a1157835SDaniel Fojt int tls_get_version(void *ssl_ctx, struct tls_connection *conn,
4539*a1157835SDaniel Fojt char *buf, size_t buflen)
4540*a1157835SDaniel Fojt {
4541*a1157835SDaniel Fojt const char *name;
4542*a1157835SDaniel Fojt if (conn == NULL || conn->ssl == NULL)
4543*a1157835SDaniel Fojt return -1;
4544*a1157835SDaniel Fojt
4545*a1157835SDaniel Fojt name = SSL_get_version(conn->ssl);
4546*a1157835SDaniel Fojt if (name == NULL)
4547*a1157835SDaniel Fojt return -1;
4548*a1157835SDaniel Fojt
4549*a1157835SDaniel Fojt os_strlcpy(buf, name, buflen);
4550*a1157835SDaniel Fojt return 0;
4551*a1157835SDaniel Fojt }
4552*a1157835SDaniel Fojt
4553*a1157835SDaniel Fojt
tls_get_cipher(void * ssl_ctx,struct tls_connection * conn,char * buf,size_t buflen)45546d49e1aeSJan Lentfer int tls_get_cipher(void *ssl_ctx, struct tls_connection *conn,
45556d49e1aeSJan Lentfer char *buf, size_t buflen)
45566d49e1aeSJan Lentfer {
45576d49e1aeSJan Lentfer const char *name;
45586d49e1aeSJan Lentfer if (conn == NULL || conn->ssl == NULL)
45596d49e1aeSJan Lentfer return -1;
45606d49e1aeSJan Lentfer
45616d49e1aeSJan Lentfer name = SSL_get_cipher(conn->ssl);
45626d49e1aeSJan Lentfer if (name == NULL)
45636d49e1aeSJan Lentfer return -1;
45646d49e1aeSJan Lentfer
45656d49e1aeSJan Lentfer os_strlcpy(buf, name, buflen);
45666d49e1aeSJan Lentfer return 0;
45676d49e1aeSJan Lentfer }
45686d49e1aeSJan Lentfer
45696d49e1aeSJan Lentfer
tls_connection_enable_workaround(void * ssl_ctx,struct tls_connection * conn)45706d49e1aeSJan Lentfer int tls_connection_enable_workaround(void *ssl_ctx,
45716d49e1aeSJan Lentfer struct tls_connection *conn)
45726d49e1aeSJan Lentfer {
45736d49e1aeSJan Lentfer SSL_set_options(conn->ssl, SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS);
45746d49e1aeSJan Lentfer
45756d49e1aeSJan Lentfer return 0;
45766d49e1aeSJan Lentfer }
45776d49e1aeSJan Lentfer
45786d49e1aeSJan Lentfer
4579*a1157835SDaniel Fojt #ifdef EAP_FAST_OR_TEAP
45806d49e1aeSJan Lentfer /* ClientHello TLS extensions require a patch to openssl, so this function is
45816d49e1aeSJan Lentfer * commented out unless explicitly needed for EAP-FAST in order to be able to
45826d49e1aeSJan Lentfer * build this file with unmodified openssl. */
tls_connection_client_hello_ext(void * ssl_ctx,struct tls_connection * conn,int ext_type,const u8 * data,size_t data_len)45836d49e1aeSJan Lentfer int tls_connection_client_hello_ext(void *ssl_ctx, struct tls_connection *conn,
45846d49e1aeSJan Lentfer int ext_type, const u8 *data,
45856d49e1aeSJan Lentfer size_t data_len)
45866d49e1aeSJan Lentfer {
45876d49e1aeSJan Lentfer if (conn == NULL || conn->ssl == NULL || ext_type != 35)
45886d49e1aeSJan Lentfer return -1;
45896d49e1aeSJan Lentfer
45906d49e1aeSJan Lentfer if (SSL_set_session_ticket_ext(conn->ssl, (void *) data,
45916d49e1aeSJan Lentfer data_len) != 1)
45926d49e1aeSJan Lentfer return -1;
45936d49e1aeSJan Lentfer
45946d49e1aeSJan Lentfer return 0;
45956d49e1aeSJan Lentfer }
4596*a1157835SDaniel Fojt #endif /* EAP_FAST_OR_TEAP */
45976d49e1aeSJan Lentfer
45986d49e1aeSJan Lentfer
tls_connection_get_failed(void * ssl_ctx,struct tls_connection * conn)45996d49e1aeSJan Lentfer int tls_connection_get_failed(void *ssl_ctx, struct tls_connection *conn)
46006d49e1aeSJan Lentfer {
46016d49e1aeSJan Lentfer if (conn == NULL)
46026d49e1aeSJan Lentfer return -1;
46036d49e1aeSJan Lentfer return conn->failed;
46046d49e1aeSJan Lentfer }
46056d49e1aeSJan Lentfer
46066d49e1aeSJan Lentfer
tls_connection_get_read_alerts(void * ssl_ctx,struct tls_connection * conn)46076d49e1aeSJan Lentfer int tls_connection_get_read_alerts(void *ssl_ctx, struct tls_connection *conn)
46086d49e1aeSJan Lentfer {
46096d49e1aeSJan Lentfer if (conn == NULL)
46106d49e1aeSJan Lentfer return -1;
46116d49e1aeSJan Lentfer return conn->read_alerts;
46126d49e1aeSJan Lentfer }
46136d49e1aeSJan Lentfer
46146d49e1aeSJan Lentfer
tls_connection_get_write_alerts(void * ssl_ctx,struct tls_connection * conn)46156d49e1aeSJan Lentfer int tls_connection_get_write_alerts(void *ssl_ctx, struct tls_connection *conn)
46166d49e1aeSJan Lentfer {
46176d49e1aeSJan Lentfer if (conn == NULL)
46186d49e1aeSJan Lentfer return -1;
46196d49e1aeSJan Lentfer return conn->write_alerts;
46206d49e1aeSJan Lentfer }
46216d49e1aeSJan Lentfer
46226d49e1aeSJan Lentfer
46233ff40c12SJohn Marino #ifdef HAVE_OCSP
46243ff40c12SJohn Marino
ocsp_debug_print_resp(OCSP_RESPONSE * rsp)46253ff40c12SJohn Marino static void ocsp_debug_print_resp(OCSP_RESPONSE *rsp)
46263ff40c12SJohn Marino {
46273ff40c12SJohn Marino #ifndef CONFIG_NO_STDOUT_DEBUG
46283ff40c12SJohn Marino BIO *out;
46293ff40c12SJohn Marino size_t rlen;
46303ff40c12SJohn Marino char *txt;
46313ff40c12SJohn Marino int res;
46323ff40c12SJohn Marino
46333ff40c12SJohn Marino if (wpa_debug_level > MSG_DEBUG)
46343ff40c12SJohn Marino return;
46353ff40c12SJohn Marino
46363ff40c12SJohn Marino out = BIO_new(BIO_s_mem());
46373ff40c12SJohn Marino if (!out)
46383ff40c12SJohn Marino return;
46393ff40c12SJohn Marino
46403ff40c12SJohn Marino OCSP_RESPONSE_print(out, rsp, 0);
46413ff40c12SJohn Marino rlen = BIO_ctrl_pending(out);
46423ff40c12SJohn Marino txt = os_malloc(rlen + 1);
46433ff40c12SJohn Marino if (!txt) {
46443ff40c12SJohn Marino BIO_free(out);
46453ff40c12SJohn Marino return;
46463ff40c12SJohn Marino }
46473ff40c12SJohn Marino
46483ff40c12SJohn Marino res = BIO_read(out, txt, rlen);
46493ff40c12SJohn Marino if (res > 0) {
46503ff40c12SJohn Marino txt[res] = '\0';
46513ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP Response\n%s", txt);
46523ff40c12SJohn Marino }
46533ff40c12SJohn Marino os_free(txt);
46543ff40c12SJohn Marino BIO_free(out);
46553ff40c12SJohn Marino #endif /* CONFIG_NO_STDOUT_DEBUG */
46563ff40c12SJohn Marino }
46573ff40c12SJohn Marino
46583ff40c12SJohn Marino
debug_print_cert(X509 * cert,const char * title)4659*a1157835SDaniel Fojt static void debug_print_cert(X509 *cert, const char *title)
4660*a1157835SDaniel Fojt {
4661*a1157835SDaniel Fojt #ifndef CONFIG_NO_STDOUT_DEBUG
4662*a1157835SDaniel Fojt BIO *out;
4663*a1157835SDaniel Fojt size_t rlen;
4664*a1157835SDaniel Fojt char *txt;
4665*a1157835SDaniel Fojt int res;
4666*a1157835SDaniel Fojt
4667*a1157835SDaniel Fojt if (wpa_debug_level > MSG_DEBUG)
4668*a1157835SDaniel Fojt return;
4669*a1157835SDaniel Fojt
4670*a1157835SDaniel Fojt out = BIO_new(BIO_s_mem());
4671*a1157835SDaniel Fojt if (!out)
4672*a1157835SDaniel Fojt return;
4673*a1157835SDaniel Fojt
4674*a1157835SDaniel Fojt X509_print(out, cert);
4675*a1157835SDaniel Fojt rlen = BIO_ctrl_pending(out);
4676*a1157835SDaniel Fojt txt = os_malloc(rlen + 1);
4677*a1157835SDaniel Fojt if (!txt) {
4678*a1157835SDaniel Fojt BIO_free(out);
4679*a1157835SDaniel Fojt return;
4680*a1157835SDaniel Fojt }
4681*a1157835SDaniel Fojt
4682*a1157835SDaniel Fojt res = BIO_read(out, txt, rlen);
4683*a1157835SDaniel Fojt if (res > 0) {
4684*a1157835SDaniel Fojt txt[res] = '\0';
4685*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: %s\n%s", title, txt);
4686*a1157835SDaniel Fojt }
4687*a1157835SDaniel Fojt os_free(txt);
4688*a1157835SDaniel Fojt
4689*a1157835SDaniel Fojt BIO_free(out);
4690*a1157835SDaniel Fojt #endif /* CONFIG_NO_STDOUT_DEBUG */
4691*a1157835SDaniel Fojt }
4692*a1157835SDaniel Fojt
4693*a1157835SDaniel Fojt
ocsp_resp_cb(SSL * s,void * arg)46943ff40c12SJohn Marino static int ocsp_resp_cb(SSL *s, void *arg)
46953ff40c12SJohn Marino {
46963ff40c12SJohn Marino struct tls_connection *conn = arg;
46973ff40c12SJohn Marino const unsigned char *p;
4698*a1157835SDaniel Fojt int len, status, reason, res;
46993ff40c12SJohn Marino OCSP_RESPONSE *rsp;
47003ff40c12SJohn Marino OCSP_BASICRESP *basic;
47013ff40c12SJohn Marino OCSP_CERTID *id;
47023ff40c12SJohn Marino ASN1_GENERALIZEDTIME *produced_at, *this_update, *next_update;
47033ff40c12SJohn Marino X509_STORE *store;
47043ff40c12SJohn Marino STACK_OF(X509) *certs = NULL;
47053ff40c12SJohn Marino
47063ff40c12SJohn Marino len = SSL_get_tlsext_status_ocsp_resp(s, &p);
47073ff40c12SJohn Marino if (!p) {
47083ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: No OCSP response received");
47093ff40c12SJohn Marino return (conn->flags & TLS_CONN_REQUIRE_OCSP) ? 0 : 1;
47103ff40c12SJohn Marino }
47113ff40c12SJohn Marino
47123ff40c12SJohn Marino wpa_hexdump(MSG_DEBUG, "OpenSSL: OCSP response", p, len);
47133ff40c12SJohn Marino
47143ff40c12SJohn Marino rsp = d2i_OCSP_RESPONSE(NULL, &p, len);
47153ff40c12SJohn Marino if (!rsp) {
47163ff40c12SJohn Marino wpa_printf(MSG_INFO, "OpenSSL: Failed to parse OCSP response");
47173ff40c12SJohn Marino return 0;
47183ff40c12SJohn Marino }
47193ff40c12SJohn Marino
47203ff40c12SJohn Marino ocsp_debug_print_resp(rsp);
47213ff40c12SJohn Marino
47223ff40c12SJohn Marino status = OCSP_response_status(rsp);
47233ff40c12SJohn Marino if (status != OCSP_RESPONSE_STATUS_SUCCESSFUL) {
47243ff40c12SJohn Marino wpa_printf(MSG_INFO, "OpenSSL: OCSP responder error %d (%s)",
47253ff40c12SJohn Marino status, OCSP_response_status_str(status));
47263ff40c12SJohn Marino return 0;
47273ff40c12SJohn Marino }
47283ff40c12SJohn Marino
47293ff40c12SJohn Marino basic = OCSP_response_get1_basic(rsp);
47303ff40c12SJohn Marino if (!basic) {
47313ff40c12SJohn Marino wpa_printf(MSG_INFO, "OpenSSL: Could not find BasicOCSPResponse");
47323ff40c12SJohn Marino return 0;
47333ff40c12SJohn Marino }
47343ff40c12SJohn Marino
4735*a1157835SDaniel Fojt store = SSL_CTX_get_cert_store(conn->ssl_ctx);
47363ff40c12SJohn Marino if (conn->peer_issuer) {
4737*a1157835SDaniel Fojt debug_print_cert(conn->peer_issuer, "Add OCSP issuer");
47383ff40c12SJohn Marino
47393ff40c12SJohn Marino if (X509_STORE_add_cert(store, conn->peer_issuer) != 1) {
47403ff40c12SJohn Marino tls_show_errors(MSG_INFO, __func__,
4741*a1157835SDaniel Fojt "OpenSSL: Could not add issuer to certificate store");
47423ff40c12SJohn Marino }
47433ff40c12SJohn Marino certs = sk_X509_new_null();
47443ff40c12SJohn Marino if (certs) {
47453ff40c12SJohn Marino X509 *cert;
47463ff40c12SJohn Marino cert = X509_dup(conn->peer_issuer);
47473ff40c12SJohn Marino if (cert && !sk_X509_push(certs, cert)) {
47483ff40c12SJohn Marino tls_show_errors(
47493ff40c12SJohn Marino MSG_INFO, __func__,
4750*a1157835SDaniel Fojt "OpenSSL: Could not add issuer to OCSP responder trust store");
47513ff40c12SJohn Marino X509_free(cert);
47523ff40c12SJohn Marino sk_X509_free(certs);
47533ff40c12SJohn Marino certs = NULL;
47543ff40c12SJohn Marino }
4755*a1157835SDaniel Fojt if (certs && conn->peer_issuer_issuer) {
47563ff40c12SJohn Marino cert = X509_dup(conn->peer_issuer_issuer);
47573ff40c12SJohn Marino if (cert && !sk_X509_push(certs, cert)) {
47583ff40c12SJohn Marino tls_show_errors(
47593ff40c12SJohn Marino MSG_INFO, __func__,
4760*a1157835SDaniel Fojt "OpenSSL: Could not add issuer's issuer to OCSP responder trust store");
47613ff40c12SJohn Marino X509_free(cert);
47623ff40c12SJohn Marino }
47633ff40c12SJohn Marino }
47643ff40c12SJohn Marino }
47653ff40c12SJohn Marino }
47663ff40c12SJohn Marino
47673ff40c12SJohn Marino status = OCSP_basic_verify(basic, certs, store, OCSP_TRUSTOTHER);
47683ff40c12SJohn Marino sk_X509_pop_free(certs, X509_free);
47693ff40c12SJohn Marino if (status <= 0) {
47703ff40c12SJohn Marino tls_show_errors(MSG_INFO, __func__,
47713ff40c12SJohn Marino "OpenSSL: OCSP response failed verification");
47723ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
47733ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
47743ff40c12SJohn Marino return 0;
47753ff40c12SJohn Marino }
47763ff40c12SJohn Marino
47773ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP response verification succeeded");
47783ff40c12SJohn Marino
47793ff40c12SJohn Marino if (!conn->peer_cert) {
47803ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Peer certificate not available for OCSP status check");
47813ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
47823ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
47833ff40c12SJohn Marino return 0;
47843ff40c12SJohn Marino }
47853ff40c12SJohn Marino
47863ff40c12SJohn Marino if (!conn->peer_issuer) {
47873ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: Peer issuer certificate not available for OCSP status check");
47883ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
47893ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
47903ff40c12SJohn Marino return 0;
47913ff40c12SJohn Marino }
47923ff40c12SJohn Marino
4793*a1157835SDaniel Fojt id = OCSP_cert_to_id(EVP_sha256(), conn->peer_cert, conn->peer_issuer);
47943ff40c12SJohn Marino if (!id) {
4795*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4796*a1157835SDaniel Fojt "OpenSSL: Could not create OCSP certificate identifier (SHA256)");
47973ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
47983ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
47993ff40c12SJohn Marino return 0;
48003ff40c12SJohn Marino }
48013ff40c12SJohn Marino
4802*a1157835SDaniel Fojt res = OCSP_resp_find_status(basic, id, &status, &reason, &produced_at,
4803*a1157835SDaniel Fojt &this_update, &next_update);
4804*a1157835SDaniel Fojt if (!res) {
4805*a1157835SDaniel Fojt OCSP_CERTID_free(id);
4806*a1157835SDaniel Fojt id = OCSP_cert_to_id(NULL, conn->peer_cert, conn->peer_issuer);
4807*a1157835SDaniel Fojt if (!id) {
4808*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4809*a1157835SDaniel Fojt "OpenSSL: Could not create OCSP certificate identifier (SHA1)");
4810*a1157835SDaniel Fojt OCSP_BASICRESP_free(basic);
4811*a1157835SDaniel Fojt OCSP_RESPONSE_free(rsp);
4812*a1157835SDaniel Fojt return 0;
4813*a1157835SDaniel Fojt }
4814*a1157835SDaniel Fojt
4815*a1157835SDaniel Fojt res = OCSP_resp_find_status(basic, id, &status, &reason,
4816*a1157835SDaniel Fojt &produced_at, &this_update,
4817*a1157835SDaniel Fojt &next_update);
4818*a1157835SDaniel Fojt }
4819*a1157835SDaniel Fojt
4820*a1157835SDaniel Fojt if (!res) {
48213ff40c12SJohn Marino wpa_printf(MSG_INFO, "OpenSSL: Could not find current server certificate from OCSP response%s",
48223ff40c12SJohn Marino (conn->flags & TLS_CONN_REQUIRE_OCSP) ? "" :
48233ff40c12SJohn Marino " (OCSP not required)");
4824*a1157835SDaniel Fojt OCSP_CERTID_free(id);
48253ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
48263ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
48273ff40c12SJohn Marino return (conn->flags & TLS_CONN_REQUIRE_OCSP) ? 0 : 1;
48283ff40c12SJohn Marino }
4829*a1157835SDaniel Fojt OCSP_CERTID_free(id);
48303ff40c12SJohn Marino
48313ff40c12SJohn Marino if (!OCSP_check_validity(this_update, next_update, 5 * 60, -1)) {
48323ff40c12SJohn Marino tls_show_errors(MSG_INFO, __func__,
48333ff40c12SJohn Marino "OpenSSL: OCSP status times invalid");
48343ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
48353ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
48363ff40c12SJohn Marino return 0;
48373ff40c12SJohn Marino }
48383ff40c12SJohn Marino
48393ff40c12SJohn Marino OCSP_BASICRESP_free(basic);
48403ff40c12SJohn Marino OCSP_RESPONSE_free(rsp);
48413ff40c12SJohn Marino
48423ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status for server certificate: %s",
48433ff40c12SJohn Marino OCSP_cert_status_str(status));
48443ff40c12SJohn Marino
48453ff40c12SJohn Marino if (status == V_OCSP_CERTSTATUS_GOOD)
48463ff40c12SJohn Marino return 1;
48473ff40c12SJohn Marino if (status == V_OCSP_CERTSTATUS_REVOKED)
48483ff40c12SJohn Marino return 0;
48493ff40c12SJohn Marino if (conn->flags & TLS_CONN_REQUIRE_OCSP) {
48503ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status unknown, but OCSP required");
48513ff40c12SJohn Marino return 0;
48523ff40c12SJohn Marino }
48533ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status unknown, but OCSP was not required, so allow connection to continue");
48543ff40c12SJohn Marino return 1;
48553ff40c12SJohn Marino }
48563ff40c12SJohn Marino
48573ff40c12SJohn Marino
ocsp_status_cb(SSL * s,void * arg)48583ff40c12SJohn Marino static int ocsp_status_cb(SSL *s, void *arg)
48593ff40c12SJohn Marino {
48603ff40c12SJohn Marino char *tmp;
48613ff40c12SJohn Marino char *resp;
48623ff40c12SJohn Marino size_t len;
48633ff40c12SJohn Marino
48643ff40c12SJohn Marino if (tls_global->ocsp_stapling_response == NULL) {
48653ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status callback - no response configured");
48663ff40c12SJohn Marino return SSL_TLSEXT_ERR_OK;
48673ff40c12SJohn Marino }
48683ff40c12SJohn Marino
48693ff40c12SJohn Marino resp = os_readfile(tls_global->ocsp_stapling_response, &len);
48703ff40c12SJohn Marino if (resp == NULL) {
48713ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status callback - could not read response file");
48723ff40c12SJohn Marino /* TODO: Build OCSPResponse with responseStatus = internalError
48733ff40c12SJohn Marino */
48743ff40c12SJohn Marino return SSL_TLSEXT_ERR_OK;
48753ff40c12SJohn Marino }
48763ff40c12SJohn Marino wpa_printf(MSG_DEBUG, "OpenSSL: OCSP status callback - send cached response");
48773ff40c12SJohn Marino tmp = OPENSSL_malloc(len);
48783ff40c12SJohn Marino if (tmp == NULL) {
48793ff40c12SJohn Marino os_free(resp);
48803ff40c12SJohn Marino return SSL_TLSEXT_ERR_ALERT_FATAL;
48813ff40c12SJohn Marino }
48823ff40c12SJohn Marino
48833ff40c12SJohn Marino os_memcpy(tmp, resp, len);
48843ff40c12SJohn Marino os_free(resp);
48853ff40c12SJohn Marino SSL_set_tlsext_status_ocsp_resp(s, tmp, len);
48863ff40c12SJohn Marino
48873ff40c12SJohn Marino return SSL_TLSEXT_ERR_OK;
48883ff40c12SJohn Marino }
48893ff40c12SJohn Marino
48903ff40c12SJohn Marino #endif /* HAVE_OCSP */
48913ff40c12SJohn Marino
48923ff40c12SJohn Marino
tls_connection_set_params(void * tls_ctx,struct tls_connection * conn,const struct tls_connection_params * params)48936d49e1aeSJan Lentfer int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn,
48946d49e1aeSJan Lentfer const struct tls_connection_params *params)
48956d49e1aeSJan Lentfer {
4896*a1157835SDaniel Fojt struct tls_data *data = tls_ctx;
48976d49e1aeSJan Lentfer int ret;
48986d49e1aeSJan Lentfer unsigned long err;
4899*a1157835SDaniel Fojt int can_pkcs11 = 0;
4900*a1157835SDaniel Fojt const char *key_id = params->key_id;
4901*a1157835SDaniel Fojt const char *cert_id = params->cert_id;
4902*a1157835SDaniel Fojt const char *ca_cert_id = params->ca_cert_id;
4903*a1157835SDaniel Fojt const char *engine_id = params->engine ? params->engine_id : NULL;
4904*a1157835SDaniel Fojt const char *ciphers;
49056d49e1aeSJan Lentfer
49066d49e1aeSJan Lentfer if (conn == NULL)
49076d49e1aeSJan Lentfer return -1;
49086d49e1aeSJan Lentfer
4909*a1157835SDaniel Fojt if (params->flags & TLS_CONN_REQUIRE_OCSP_ALL) {
4910*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
4911*a1157835SDaniel Fojt "OpenSSL: ocsp=3 not supported");
4912*a1157835SDaniel Fojt return -1;
4913*a1157835SDaniel Fojt }
4914*a1157835SDaniel Fojt
4915*a1157835SDaniel Fojt /*
4916*a1157835SDaniel Fojt * If the engine isn't explicitly configured, and any of the
4917*a1157835SDaniel Fojt * cert/key fields are actually PKCS#11 URIs, then automatically
4918*a1157835SDaniel Fojt * use the PKCS#11 ENGINE.
4919*a1157835SDaniel Fojt */
4920*a1157835SDaniel Fojt if (!engine_id || os_strcmp(engine_id, "pkcs11") == 0)
4921*a1157835SDaniel Fojt can_pkcs11 = 1;
4922*a1157835SDaniel Fojt
4923*a1157835SDaniel Fojt if (!key_id && params->private_key && can_pkcs11 &&
4924*a1157835SDaniel Fojt os_strncmp(params->private_key, "pkcs11:", 7) == 0) {
4925*a1157835SDaniel Fojt can_pkcs11 = 2;
4926*a1157835SDaniel Fojt key_id = params->private_key;
4927*a1157835SDaniel Fojt }
4928*a1157835SDaniel Fojt
4929*a1157835SDaniel Fojt if (!cert_id && params->client_cert && can_pkcs11 &&
4930*a1157835SDaniel Fojt os_strncmp(params->client_cert, "pkcs11:", 7) == 0) {
4931*a1157835SDaniel Fojt can_pkcs11 = 2;
4932*a1157835SDaniel Fojt cert_id = params->client_cert;
4933*a1157835SDaniel Fojt }
4934*a1157835SDaniel Fojt
4935*a1157835SDaniel Fojt if (!ca_cert_id && params->ca_cert && can_pkcs11 &&
4936*a1157835SDaniel Fojt os_strncmp(params->ca_cert, "pkcs11:", 7) == 0) {
4937*a1157835SDaniel Fojt can_pkcs11 = 2;
4938*a1157835SDaniel Fojt ca_cert_id = params->ca_cert;
4939*a1157835SDaniel Fojt }
4940*a1157835SDaniel Fojt
4941*a1157835SDaniel Fojt /* If we need to automatically enable the PKCS#11 ENGINE, do so. */
4942*a1157835SDaniel Fojt if (can_pkcs11 == 2 && !engine_id)
4943*a1157835SDaniel Fojt engine_id = "pkcs11";
4944*a1157835SDaniel Fojt
4945*a1157835SDaniel Fojt #if defined(EAP_FAST) || defined(EAP_FAST_DYNAMIC) || defined(EAP_SERVER_FAST)
4946*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L || defined(LIBRESSL_VERSION_NUMBER)
4947*a1157835SDaniel Fojt if (params->flags & TLS_CONN_EAP_FAST) {
4948*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
4949*a1157835SDaniel Fojt "OpenSSL: Use TLSv1_method() for EAP-FAST");
4950*a1157835SDaniel Fojt if (SSL_set_ssl_method(conn->ssl, TLSv1_method()) != 1) {
4951*a1157835SDaniel Fojt tls_show_errors(MSG_INFO, __func__,
4952*a1157835SDaniel Fojt "Failed to set TLSv1_method() for EAP-FAST");
4953*a1157835SDaniel Fojt return -1;
4954*a1157835SDaniel Fojt }
4955*a1157835SDaniel Fojt }
4956*a1157835SDaniel Fojt #endif
4957*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10101000L
4958*a1157835SDaniel Fojt #ifdef SSL_OP_NO_TLSv1_3
4959*a1157835SDaniel Fojt if (params->flags & TLS_CONN_EAP_FAST) {
4960*a1157835SDaniel Fojt /* Need to disable TLS v1.3 at least for now since OpenSSL 1.1.1
4961*a1157835SDaniel Fojt * refuses to start the handshake with the modified ciphersuite
4962*a1157835SDaniel Fojt * list (no TLS v1.3 ciphersuites included) for EAP-FAST. */
4963*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Disable TLSv1.3 for EAP-FAST");
4964*a1157835SDaniel Fojt SSL_set_options(conn->ssl, SSL_OP_NO_TLSv1_3);
4965*a1157835SDaniel Fojt }
4966*a1157835SDaniel Fojt #endif /* SSL_OP_NO_TLSv1_3 */
4967*a1157835SDaniel Fojt #endif
4968*a1157835SDaniel Fojt #endif /* EAP_FAST || EAP_FAST_DYNAMIC || EAP_SERVER_FAST */
4969*a1157835SDaniel Fojt
49706d49e1aeSJan Lentfer while ((err = ERR_get_error())) {
49716d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "%s: Clearing pending SSL error: %s",
49726d49e1aeSJan Lentfer __func__, ERR_error_string(err, NULL));
49736d49e1aeSJan Lentfer }
49746d49e1aeSJan Lentfer
4975*a1157835SDaniel Fojt if (engine_id) {
49766d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "SSL: Initializing TLS engine");
4977*a1157835SDaniel Fojt ret = tls_engine_init(conn, engine_id, params->pin,
4978*a1157835SDaniel Fojt key_id, cert_id, ca_cert_id);
49796d49e1aeSJan Lentfer if (ret)
49806d49e1aeSJan Lentfer return ret;
49816d49e1aeSJan Lentfer }
49826d49e1aeSJan Lentfer if (tls_connection_set_subject_match(conn,
49836d49e1aeSJan Lentfer params->subject_match,
49843ff40c12SJohn Marino params->altsubject_match,
4985*a1157835SDaniel Fojt params->suffix_match,
4986*a1157835SDaniel Fojt params->domain_match,
4987*a1157835SDaniel Fojt params->check_cert_subject))
49886d49e1aeSJan Lentfer return -1;
49896d49e1aeSJan Lentfer
4990*a1157835SDaniel Fojt if (engine_id && ca_cert_id) {
4991*a1157835SDaniel Fojt if (tls_connection_engine_ca_cert(data, conn, ca_cert_id))
49926d49e1aeSJan Lentfer return TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED;
4993*a1157835SDaniel Fojt } else if (tls_connection_ca_cert(data, conn, params->ca_cert,
49946d49e1aeSJan Lentfer params->ca_cert_blob,
49956d49e1aeSJan Lentfer params->ca_cert_blob_len,
49966d49e1aeSJan Lentfer params->ca_path))
49976d49e1aeSJan Lentfer return -1;
49986d49e1aeSJan Lentfer
4999*a1157835SDaniel Fojt if (engine_id && cert_id) {
5000*a1157835SDaniel Fojt if (tls_connection_engine_client_cert(conn, cert_id))
50016d49e1aeSJan Lentfer return TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED;
50026d49e1aeSJan Lentfer } else if (tls_connection_client_cert(conn, params->client_cert,
50036d49e1aeSJan Lentfer params->client_cert_blob,
50046d49e1aeSJan Lentfer params->client_cert_blob_len))
50056d49e1aeSJan Lentfer return -1;
50066d49e1aeSJan Lentfer
5007*a1157835SDaniel Fojt if (engine_id && key_id) {
50086d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "TLS: Using private key from engine");
50096d49e1aeSJan Lentfer if (tls_connection_engine_private_key(conn))
50106d49e1aeSJan Lentfer return TLS_SET_PARAMS_ENGINE_PRV_VERIFY_FAILED;
5011*a1157835SDaniel Fojt } else if (tls_connection_private_key(data, conn,
50126d49e1aeSJan Lentfer params->private_key,
50136d49e1aeSJan Lentfer params->private_key_passwd,
50146d49e1aeSJan Lentfer params->private_key_blob,
50156d49e1aeSJan Lentfer params->private_key_blob_len)) {
50166d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to load private key '%s'",
50176d49e1aeSJan Lentfer params->private_key);
50186d49e1aeSJan Lentfer return -1;
50196d49e1aeSJan Lentfer }
50206d49e1aeSJan Lentfer
50216d49e1aeSJan Lentfer if (tls_connection_dh(conn, params->dh_file)) {
50226d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "TLS: Failed to load DH file '%s'",
50236d49e1aeSJan Lentfer params->dh_file);
50246d49e1aeSJan Lentfer return -1;
50256d49e1aeSJan Lentfer }
50266d49e1aeSJan Lentfer
5027*a1157835SDaniel Fojt ciphers = params->openssl_ciphers;
5028*a1157835SDaniel Fojt #ifdef CONFIG_SUITEB
5029*a1157835SDaniel Fojt #ifdef OPENSSL_IS_BORINGSSL
5030*a1157835SDaniel Fojt if (ciphers && os_strcmp(ciphers, "SUITEB192") == 0) {
5031*a1157835SDaniel Fojt /* BoringSSL removed support for SUITEB192, so need to handle
5032*a1157835SDaniel Fojt * this with hardcoded ciphersuite and additional checks for
5033*a1157835SDaniel Fojt * other parameters. */
5034*a1157835SDaniel Fojt ciphers = "ECDHE-ECDSA-AES256-GCM-SHA384";
5035*a1157835SDaniel Fojt }
5036*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
5037*a1157835SDaniel Fojt #endif /* CONFIG_SUITEB */
5038*a1157835SDaniel Fojt if (ciphers && SSL_set_cipher_list(conn->ssl, ciphers) != 1) {
5039*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5040*a1157835SDaniel Fojt "OpenSSL: Failed to set cipher string '%s'",
5041*a1157835SDaniel Fojt ciphers);
5042*a1157835SDaniel Fojt return -1;
5043*a1157835SDaniel Fojt }
50443ff40c12SJohn Marino
5045*a1157835SDaniel Fojt if (!params->openssl_ecdh_curves) {
5046*a1157835SDaniel Fojt #ifndef OPENSSL_IS_BORINGSSL
5047*a1157835SDaniel Fojt #ifndef OPENSSL_NO_EC
5048*a1157835SDaniel Fojt #if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && \
5049*a1157835SDaniel Fojt (OPENSSL_VERSION_NUMBER < 0x10100000L)
5050*a1157835SDaniel Fojt if (SSL_set_ecdh_auto(conn->ssl, 1) != 1) {
5051*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5052*a1157835SDaniel Fojt "OpenSSL: Failed to set ECDH curves to auto");
5053*a1157835SDaniel Fojt return -1;
5054*a1157835SDaniel Fojt }
5055*a1157835SDaniel Fojt #endif /* >= 1.0.2 && < 1.1.0 */
5056*a1157835SDaniel Fojt #endif /* OPENSSL_NO_EC */
5057*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
5058*a1157835SDaniel Fojt } else if (params->openssl_ecdh_curves[0]) {
5059*a1157835SDaniel Fojt #if defined(OPENSSL_IS_BORINGSSL) || (OPENSSL_VERSION_NUMBER < 0x10002000L)
5060*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5061*a1157835SDaniel Fojt "OpenSSL: ECDH configuration nnot supported");
5062*a1157835SDaniel Fojt return -1;
5063*a1157835SDaniel Fojt #else /* OPENSSL_IS_BORINGSSL || < 1.0.2 */
5064*a1157835SDaniel Fojt #ifndef OPENSSL_NO_EC
5065*a1157835SDaniel Fojt if (SSL_set1_curves_list(conn->ssl,
5066*a1157835SDaniel Fojt params->openssl_ecdh_curves) != 1) {
5067*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5068*a1157835SDaniel Fojt "OpenSSL: Failed to set ECDH curves '%s'",
5069*a1157835SDaniel Fojt params->openssl_ecdh_curves);
5070*a1157835SDaniel Fojt return -1;
5071*a1157835SDaniel Fojt }
5072*a1157835SDaniel Fojt #else /* OPENSSL_NO_EC */
5073*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "OpenSSL: ECDH not supported");
5074*a1157835SDaniel Fojt return -1;
5075*a1157835SDaniel Fojt #endif /* OPENSSL_NO_EC */
5076*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
5077*a1157835SDaniel Fojt }
5078*a1157835SDaniel Fojt
5079*a1157835SDaniel Fojt if (tls_set_conn_flags(conn, params->flags,
5080*a1157835SDaniel Fojt params->openssl_ciphers) < 0)
5081*a1157835SDaniel Fojt return -1;
5082*a1157835SDaniel Fojt
5083*a1157835SDaniel Fojt #ifdef OPENSSL_IS_BORINGSSL
5084*a1157835SDaniel Fojt if (params->flags & TLS_CONN_REQUEST_OCSP) {
5085*a1157835SDaniel Fojt SSL_enable_ocsp_stapling(conn->ssl);
5086*a1157835SDaniel Fojt }
5087*a1157835SDaniel Fojt #else /* OPENSSL_IS_BORINGSSL */
50883ff40c12SJohn Marino #ifdef HAVE_OCSP
50893ff40c12SJohn Marino if (params->flags & TLS_CONN_REQUEST_OCSP) {
5090*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
50913ff40c12SJohn Marino SSL_set_tlsext_status_type(conn->ssl, TLSEXT_STATUSTYPE_ocsp);
50923ff40c12SJohn Marino SSL_CTX_set_tlsext_status_cb(ssl_ctx, ocsp_resp_cb);
50933ff40c12SJohn Marino SSL_CTX_set_tlsext_status_arg(ssl_ctx, conn);
50943ff40c12SJohn Marino }
5095*a1157835SDaniel Fojt #else /* HAVE_OCSP */
5096*a1157835SDaniel Fojt if (params->flags & TLS_CONN_REQUIRE_OCSP) {
5097*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5098*a1157835SDaniel Fojt "OpenSSL: No OCSP support included - reject configuration");
5099*a1157835SDaniel Fojt return -1;
5100*a1157835SDaniel Fojt }
5101*a1157835SDaniel Fojt if (params->flags & TLS_CONN_REQUEST_OCSP) {
5102*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
5103*a1157835SDaniel Fojt "OpenSSL: No OCSP support included - allow optional OCSP case to continue");
5104*a1157835SDaniel Fojt }
51053ff40c12SJohn Marino #endif /* HAVE_OCSP */
5106*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
51073ff40c12SJohn Marino
51083ff40c12SJohn Marino conn->flags = params->flags;
51093ff40c12SJohn Marino
5110*a1157835SDaniel Fojt tls_get_errors(data);
51116d49e1aeSJan Lentfer
51126d49e1aeSJan Lentfer return 0;
51136d49e1aeSJan Lentfer }
51146d49e1aeSJan Lentfer
51156d49e1aeSJan Lentfer
openssl_debug_dump_cipher_list(SSL_CTX * ssl_ctx)5116*a1157835SDaniel Fojt static void openssl_debug_dump_cipher_list(SSL_CTX *ssl_ctx)
5117*a1157835SDaniel Fojt {
5118*a1157835SDaniel Fojt SSL *ssl;
5119*a1157835SDaniel Fojt int i;
5120*a1157835SDaniel Fojt
5121*a1157835SDaniel Fojt ssl = SSL_new(ssl_ctx);
5122*a1157835SDaniel Fojt if (!ssl)
5123*a1157835SDaniel Fojt return;
5124*a1157835SDaniel Fojt
5125*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
5126*a1157835SDaniel Fojt "OpenSSL: Enabled cipher suites in priority order");
5127*a1157835SDaniel Fojt for (i = 0; ; i++) {
5128*a1157835SDaniel Fojt const char *cipher;
5129*a1157835SDaniel Fojt
5130*a1157835SDaniel Fojt cipher = SSL_get_cipher_list(ssl, i);
5131*a1157835SDaniel Fojt if (!cipher)
5132*a1157835SDaniel Fojt break;
5133*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "Cipher %d: %s", i, cipher);
5134*a1157835SDaniel Fojt }
5135*a1157835SDaniel Fojt
5136*a1157835SDaniel Fojt SSL_free(ssl);
5137*a1157835SDaniel Fojt }
5138*a1157835SDaniel Fojt
5139*a1157835SDaniel Fojt
5140*a1157835SDaniel Fojt #if !defined(LIBRESSL_VERSION_NUMBER) && !defined(BORINGSSL_API_VERSION)
5141*a1157835SDaniel Fojt
openssl_pkey_type_str(const EVP_PKEY * pkey)5142*a1157835SDaniel Fojt static const char * openssl_pkey_type_str(const EVP_PKEY *pkey)
5143*a1157835SDaniel Fojt {
5144*a1157835SDaniel Fojt if (!pkey)
5145*a1157835SDaniel Fojt return "NULL";
5146*a1157835SDaniel Fojt switch (EVP_PKEY_type(EVP_PKEY_id(pkey))) {
5147*a1157835SDaniel Fojt case EVP_PKEY_RSA:
5148*a1157835SDaniel Fojt return "RSA";
5149*a1157835SDaniel Fojt case EVP_PKEY_DSA:
5150*a1157835SDaniel Fojt return "DSA";
5151*a1157835SDaniel Fojt case EVP_PKEY_DH:
5152*a1157835SDaniel Fojt return "DH";
5153*a1157835SDaniel Fojt case EVP_PKEY_EC:
5154*a1157835SDaniel Fojt return "EC";
5155*a1157835SDaniel Fojt }
5156*a1157835SDaniel Fojt return "?";
5157*a1157835SDaniel Fojt }
5158*a1157835SDaniel Fojt
5159*a1157835SDaniel Fojt
openssl_debug_dump_certificate(int i,X509 * cert)5160*a1157835SDaniel Fojt static void openssl_debug_dump_certificate(int i, X509 *cert)
5161*a1157835SDaniel Fojt {
5162*a1157835SDaniel Fojt char buf[256];
5163*a1157835SDaniel Fojt EVP_PKEY *pkey;
5164*a1157835SDaniel Fojt ASN1_INTEGER *ser;
5165*a1157835SDaniel Fojt char serial_num[128];
5166*a1157835SDaniel Fojt
5167*a1157835SDaniel Fojt X509_NAME_oneline(X509_get_subject_name(cert), buf, sizeof(buf));
5168*a1157835SDaniel Fojt
5169*a1157835SDaniel Fojt ser = X509_get_serialNumber(cert);
5170*a1157835SDaniel Fojt if (ser)
5171*a1157835SDaniel Fojt wpa_snprintf_hex_uppercase(serial_num, sizeof(serial_num),
5172*a1157835SDaniel Fojt ASN1_STRING_get0_data(ser),
5173*a1157835SDaniel Fojt ASN1_STRING_length(ser));
5174*a1157835SDaniel Fojt else
5175*a1157835SDaniel Fojt serial_num[0] = '\0';
5176*a1157835SDaniel Fojt
5177*a1157835SDaniel Fojt pkey = X509_get_pubkey(cert);
5178*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "%d: %s (%s) %s", i, buf,
5179*a1157835SDaniel Fojt openssl_pkey_type_str(pkey), serial_num);
5180*a1157835SDaniel Fojt EVP_PKEY_free(pkey);
5181*a1157835SDaniel Fojt }
5182*a1157835SDaniel Fojt
5183*a1157835SDaniel Fojt
openssl_debug_dump_certificates(SSL_CTX * ssl_ctx)5184*a1157835SDaniel Fojt static void openssl_debug_dump_certificates(SSL_CTX *ssl_ctx)
5185*a1157835SDaniel Fojt {
5186*a1157835SDaniel Fojt STACK_OF(X509) *certs;
5187*a1157835SDaniel Fojt
5188*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Configured certificate chain");
5189*a1157835SDaniel Fojt if (SSL_CTX_get0_chain_certs(ssl_ctx, &certs) == 1) {
5190*a1157835SDaniel Fojt int i;
5191*a1157835SDaniel Fojt
5192*a1157835SDaniel Fojt for (i = sk_X509_num(certs); i > 0; i--)
5193*a1157835SDaniel Fojt openssl_debug_dump_certificate(i, sk_X509_value(certs,
5194*a1157835SDaniel Fojt i - 1));
5195*a1157835SDaniel Fojt }
5196*a1157835SDaniel Fojt openssl_debug_dump_certificate(0, SSL_CTX_get0_certificate(ssl_ctx));
5197*a1157835SDaniel Fojt }
5198*a1157835SDaniel Fojt
5199*a1157835SDaniel Fojt #endif
5200*a1157835SDaniel Fojt
5201*a1157835SDaniel Fojt
openssl_debug_dump_certificate_chains(SSL_CTX * ssl_ctx)5202*a1157835SDaniel Fojt static void openssl_debug_dump_certificate_chains(SSL_CTX *ssl_ctx)
5203*a1157835SDaniel Fojt {
5204*a1157835SDaniel Fojt #if !defined(LIBRESSL_VERSION_NUMBER) && !defined(BORINGSSL_API_VERSION)
5205*a1157835SDaniel Fojt int res;
5206*a1157835SDaniel Fojt
5207*a1157835SDaniel Fojt for (res = SSL_CTX_set_current_cert(ssl_ctx, SSL_CERT_SET_FIRST);
5208*a1157835SDaniel Fojt res == 1;
5209*a1157835SDaniel Fojt res = SSL_CTX_set_current_cert(ssl_ctx, SSL_CERT_SET_NEXT))
5210*a1157835SDaniel Fojt openssl_debug_dump_certificates(ssl_ctx);
5211*a1157835SDaniel Fojt
5212*a1157835SDaniel Fojt SSL_CTX_set_current_cert(ssl_ctx, SSL_CERT_SET_FIRST);
5213*a1157835SDaniel Fojt #endif
5214*a1157835SDaniel Fojt }
5215*a1157835SDaniel Fojt
5216*a1157835SDaniel Fojt
openssl_debug_dump_ctx(SSL_CTX * ssl_ctx)5217*a1157835SDaniel Fojt static void openssl_debug_dump_ctx(SSL_CTX *ssl_ctx)
5218*a1157835SDaniel Fojt {
5219*a1157835SDaniel Fojt openssl_debug_dump_cipher_list(ssl_ctx);
5220*a1157835SDaniel Fojt openssl_debug_dump_certificate_chains(ssl_ctx);
5221*a1157835SDaniel Fojt }
5222*a1157835SDaniel Fojt
5223*a1157835SDaniel Fojt
tls_global_set_params(void * tls_ctx,const struct tls_connection_params * params)52246d49e1aeSJan Lentfer int tls_global_set_params(void *tls_ctx,
52256d49e1aeSJan Lentfer const struct tls_connection_params *params)
52266d49e1aeSJan Lentfer {
5227*a1157835SDaniel Fojt struct tls_data *data = tls_ctx;
5228*a1157835SDaniel Fojt SSL_CTX *ssl_ctx = data->ssl;
52296d49e1aeSJan Lentfer unsigned long err;
52306d49e1aeSJan Lentfer
52316d49e1aeSJan Lentfer while ((err = ERR_get_error())) {
52326d49e1aeSJan Lentfer wpa_printf(MSG_INFO, "%s: Clearing pending SSL error: %s",
52336d49e1aeSJan Lentfer __func__, ERR_error_string(err, NULL));
52346d49e1aeSJan Lentfer }
52356d49e1aeSJan Lentfer
5236*a1157835SDaniel Fojt os_free(data->check_cert_subject);
5237*a1157835SDaniel Fojt data->check_cert_subject = NULL;
5238*a1157835SDaniel Fojt if (params->check_cert_subject) {
5239*a1157835SDaniel Fojt data->check_cert_subject =
5240*a1157835SDaniel Fojt os_strdup(params->check_cert_subject);
5241*a1157835SDaniel Fojt if (!data->check_cert_subject)
52426d49e1aeSJan Lentfer return -1;
5243*a1157835SDaniel Fojt }
52446d49e1aeSJan Lentfer
5245*a1157835SDaniel Fojt if (tls_global_ca_cert(data, params->ca_cert) ||
5246*a1157835SDaniel Fojt tls_global_client_cert(data, params->client_cert) ||
5247*a1157835SDaniel Fojt tls_global_private_key(data, params->private_key,
5248*a1157835SDaniel Fojt params->private_key_passwd) ||
5249*a1157835SDaniel Fojt tls_global_client_cert(data, params->client_cert2) ||
5250*a1157835SDaniel Fojt tls_global_private_key(data, params->private_key2,
5251*a1157835SDaniel Fojt params->private_key_passwd2) ||
5252*a1157835SDaniel Fojt tls_global_dh(data, params->dh_file)) {
5253*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "TLS: Failed to set global parameters");
52546d49e1aeSJan Lentfer return -1;
5255*a1157835SDaniel Fojt }
52566d49e1aeSJan Lentfer
5257*a1157835SDaniel Fojt if (params->openssl_ciphers &&
5258*a1157835SDaniel Fojt SSL_CTX_set_cipher_list(ssl_ctx, params->openssl_ciphers) != 1) {
5259*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5260*a1157835SDaniel Fojt "OpenSSL: Failed to set cipher string '%s'",
5261*a1157835SDaniel Fojt params->openssl_ciphers);
52626d49e1aeSJan Lentfer return -1;
5263*a1157835SDaniel Fojt }
52646d49e1aeSJan Lentfer
5265*a1157835SDaniel Fojt if (!params->openssl_ecdh_curves) {
5266*a1157835SDaniel Fojt #ifndef OPENSSL_IS_BORINGSSL
5267*a1157835SDaniel Fojt #ifndef OPENSSL_NO_EC
5268*a1157835SDaniel Fojt #if (OPENSSL_VERSION_NUMBER >= 0x10002000L) && \
5269*a1157835SDaniel Fojt (OPENSSL_VERSION_NUMBER < 0x10100000L)
5270*a1157835SDaniel Fojt if (SSL_CTX_set_ecdh_auto(ssl_ctx, 1) != 1) {
5271*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5272*a1157835SDaniel Fojt "OpenSSL: Failed to set ECDH curves to auto");
52736d49e1aeSJan Lentfer return -1;
52746d49e1aeSJan Lentfer }
5275*a1157835SDaniel Fojt #endif /* >= 1.0.2 && < 1.1.0 */
5276*a1157835SDaniel Fojt #endif /* OPENSSL_NO_EC */
5277*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
5278*a1157835SDaniel Fojt } else if (params->openssl_ecdh_curves[0]) {
5279*a1157835SDaniel Fojt #if defined(OPENSSL_IS_BORINGSSL) || (OPENSSL_VERSION_NUMBER < 0x10002000L)
5280*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5281*a1157835SDaniel Fojt "OpenSSL: ECDH configuration nnot supported");
5282*a1157835SDaniel Fojt return -1;
5283*a1157835SDaniel Fojt #else /* OPENSSL_IS_BORINGSSL || < 1.0.2 */
5284*a1157835SDaniel Fojt #ifndef OPENSSL_NO_EC
5285*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L
5286*a1157835SDaniel Fojt SSL_CTX_set_ecdh_auto(ssl_ctx, 1);
5287*a1157835SDaniel Fojt #endif
5288*a1157835SDaniel Fojt if (SSL_CTX_set1_curves_list(ssl_ctx,
5289*a1157835SDaniel Fojt params->openssl_ecdh_curves) !=
5290*a1157835SDaniel Fojt 1) {
5291*a1157835SDaniel Fojt wpa_printf(MSG_INFO,
5292*a1157835SDaniel Fojt "OpenSSL: Failed to set ECDH curves '%s'",
5293*a1157835SDaniel Fojt params->openssl_ecdh_curves);
5294*a1157835SDaniel Fojt return -1;
5295*a1157835SDaniel Fojt }
5296*a1157835SDaniel Fojt #else /* OPENSSL_NO_EC */
5297*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "OpenSSL: ECDH not supported");
5298*a1157835SDaniel Fojt return -1;
5299*a1157835SDaniel Fojt #endif /* OPENSSL_NO_EC */
5300*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
5301*a1157835SDaniel Fojt }
53026d49e1aeSJan Lentfer
53033ff40c12SJohn Marino #ifdef SSL_OP_NO_TICKET
53043ff40c12SJohn Marino if (params->flags & TLS_CONN_DISABLE_SESSION_TICKET)
53053ff40c12SJohn Marino SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_TICKET);
53063ff40c12SJohn Marino else
53073ff40c12SJohn Marino SSL_CTX_clear_options(ssl_ctx, SSL_OP_NO_TICKET);
53083ff40c12SJohn Marino #endif /* SSL_OP_NO_TICKET */
53093ff40c12SJohn Marino
53103ff40c12SJohn Marino #ifdef HAVE_OCSP
53113ff40c12SJohn Marino SSL_CTX_set_tlsext_status_cb(ssl_ctx, ocsp_status_cb);
53123ff40c12SJohn Marino SSL_CTX_set_tlsext_status_arg(ssl_ctx, ssl_ctx);
53133ff40c12SJohn Marino os_free(tls_global->ocsp_stapling_response);
53143ff40c12SJohn Marino if (params->ocsp_stapling_response)
53153ff40c12SJohn Marino tls_global->ocsp_stapling_response =
53163ff40c12SJohn Marino os_strdup(params->ocsp_stapling_response);
53173ff40c12SJohn Marino else
53183ff40c12SJohn Marino tls_global->ocsp_stapling_response = NULL;
53193ff40c12SJohn Marino #endif /* HAVE_OCSP */
53203ff40c12SJohn Marino
5321*a1157835SDaniel Fojt openssl_debug_dump_ctx(ssl_ctx);
5322*a1157835SDaniel Fojt
53236d49e1aeSJan Lentfer return 0;
53246d49e1aeSJan Lentfer }
53256d49e1aeSJan Lentfer
53266d49e1aeSJan Lentfer
5327*a1157835SDaniel Fojt #ifdef EAP_FAST_OR_TEAP
53286d49e1aeSJan Lentfer /* Pre-shared secred requires a patch to openssl, so this function is
53296d49e1aeSJan Lentfer * commented out unless explicitly needed for EAP-FAST in order to be able to
53306d49e1aeSJan Lentfer * build this file with unmodified openssl. */
53316d49e1aeSJan Lentfer
5332*a1157835SDaniel Fojt #if (defined(OPENSSL_IS_BORINGSSL) || OPENSSL_VERSION_NUMBER >= 0x10100000L) && !defined(LIBRESSL_VERSION_NUMBER)
tls_sess_sec_cb(SSL * s,void * secret,int * secret_len,STACK_OF (SSL_CIPHER)* peer_ciphers,const SSL_CIPHER ** cipher,void * arg)5333*a1157835SDaniel Fojt static int tls_sess_sec_cb(SSL *s, void *secret, int *secret_len,
5334*a1157835SDaniel Fojt STACK_OF(SSL_CIPHER) *peer_ciphers,
5335*a1157835SDaniel Fojt const SSL_CIPHER **cipher, void *arg)
5336*a1157835SDaniel Fojt #else /* OPENSSL_IS_BORINGSSL */
53376d49e1aeSJan Lentfer static int tls_sess_sec_cb(SSL *s, void *secret, int *secret_len,
53386d49e1aeSJan Lentfer STACK_OF(SSL_CIPHER) *peer_ciphers,
53396d49e1aeSJan Lentfer SSL_CIPHER **cipher, void *arg)
5340*a1157835SDaniel Fojt #endif /* OPENSSL_IS_BORINGSSL */
53416d49e1aeSJan Lentfer {
53426d49e1aeSJan Lentfer struct tls_connection *conn = arg;
53436d49e1aeSJan Lentfer int ret;
53446d49e1aeSJan Lentfer
5345*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER < 0x10100000L || \
5346*a1157835SDaniel Fojt (defined(LIBRESSL_VERSION_NUMBER) && \
5347*a1157835SDaniel Fojt LIBRESSL_VERSION_NUMBER < 0x20700000L)
53486d49e1aeSJan Lentfer if (conn == NULL || conn->session_ticket_cb == NULL)
53496d49e1aeSJan Lentfer return 0;
53506d49e1aeSJan Lentfer
53516d49e1aeSJan Lentfer ret = conn->session_ticket_cb(conn->session_ticket_cb_ctx,
53526d49e1aeSJan Lentfer conn->session_ticket,
53536d49e1aeSJan Lentfer conn->session_ticket_len,
53546d49e1aeSJan Lentfer s->s3->client_random,
53556d49e1aeSJan Lentfer s->s3->server_random, secret);
5356*a1157835SDaniel Fojt #else
5357*a1157835SDaniel Fojt unsigned char client_random[SSL3_RANDOM_SIZE];
5358*a1157835SDaniel Fojt unsigned char server_random[SSL3_RANDOM_SIZE];
5359*a1157835SDaniel Fojt
5360*a1157835SDaniel Fojt if (conn == NULL || conn->session_ticket_cb == NULL)
5361*a1157835SDaniel Fojt return 0;
5362*a1157835SDaniel Fojt
5363*a1157835SDaniel Fojt SSL_get_client_random(s, client_random, sizeof(client_random));
5364*a1157835SDaniel Fojt SSL_get_server_random(s, server_random, sizeof(server_random));
5365*a1157835SDaniel Fojt
5366*a1157835SDaniel Fojt ret = conn->session_ticket_cb(conn->session_ticket_cb_ctx,
5367*a1157835SDaniel Fojt conn->session_ticket,
5368*a1157835SDaniel Fojt conn->session_ticket_len,
5369*a1157835SDaniel Fojt client_random,
5370*a1157835SDaniel Fojt server_random, secret);
5371*a1157835SDaniel Fojt #endif
5372*a1157835SDaniel Fojt
53736d49e1aeSJan Lentfer os_free(conn->session_ticket);
53746d49e1aeSJan Lentfer conn->session_ticket = NULL;
53756d49e1aeSJan Lentfer
53766d49e1aeSJan Lentfer if (ret <= 0)
53776d49e1aeSJan Lentfer return 0;
53786d49e1aeSJan Lentfer
53796d49e1aeSJan Lentfer *secret_len = SSL_MAX_MASTER_KEY_LENGTH;
53806d49e1aeSJan Lentfer return 1;
53816d49e1aeSJan Lentfer }
53826d49e1aeSJan Lentfer
53836d49e1aeSJan Lentfer
tls_session_ticket_ext_cb(SSL * s,const unsigned char * data,int len,void * arg)53846d49e1aeSJan Lentfer static int tls_session_ticket_ext_cb(SSL *s, const unsigned char *data,
53856d49e1aeSJan Lentfer int len, void *arg)
53866d49e1aeSJan Lentfer {
53876d49e1aeSJan Lentfer struct tls_connection *conn = arg;
53886d49e1aeSJan Lentfer
53896d49e1aeSJan Lentfer if (conn == NULL || conn->session_ticket_cb == NULL)
53906d49e1aeSJan Lentfer return 0;
53916d49e1aeSJan Lentfer
53926d49e1aeSJan Lentfer wpa_printf(MSG_DEBUG, "OpenSSL: %s: length=%d", __func__, len);
53936d49e1aeSJan Lentfer
53946d49e1aeSJan Lentfer os_free(conn->session_ticket);
53956d49e1aeSJan Lentfer conn->session_ticket = NULL;
53966d49e1aeSJan Lentfer
53976d49e1aeSJan Lentfer wpa_hexdump(MSG_DEBUG, "OpenSSL: ClientHello SessionTicket "
53986d49e1aeSJan Lentfer "extension", data, len);
53996d49e1aeSJan Lentfer
5400*a1157835SDaniel Fojt conn->session_ticket = os_memdup(data, len);
54016d49e1aeSJan Lentfer if (conn->session_ticket == NULL)
54026d49e1aeSJan Lentfer return 0;
54036d49e1aeSJan Lentfer
54046d49e1aeSJan Lentfer conn->session_ticket_len = len;
54056d49e1aeSJan Lentfer
54066d49e1aeSJan Lentfer return 1;
54076d49e1aeSJan Lentfer }
5408*a1157835SDaniel Fojt #endif /* EAP_FAST_OR_TEAP */
54096d49e1aeSJan Lentfer
54106d49e1aeSJan Lentfer
tls_connection_set_session_ticket_cb(void * tls_ctx,struct tls_connection * conn,tls_session_ticket_cb cb,void * ctx)54116d49e1aeSJan Lentfer int tls_connection_set_session_ticket_cb(void *tls_ctx,
54126d49e1aeSJan Lentfer struct tls_connection *conn,
54136d49e1aeSJan Lentfer tls_session_ticket_cb cb,
54146d49e1aeSJan Lentfer void *ctx)
54156d49e1aeSJan Lentfer {
5416*a1157835SDaniel Fojt #ifdef EAP_FAST_OR_TEAP
54176d49e1aeSJan Lentfer conn->session_ticket_cb = cb;
54186d49e1aeSJan Lentfer conn->session_ticket_cb_ctx = ctx;
54196d49e1aeSJan Lentfer
54206d49e1aeSJan Lentfer if (cb) {
54216d49e1aeSJan Lentfer if (SSL_set_session_secret_cb(conn->ssl, tls_sess_sec_cb,
54226d49e1aeSJan Lentfer conn) != 1)
54236d49e1aeSJan Lentfer return -1;
54246d49e1aeSJan Lentfer SSL_set_session_ticket_ext_cb(conn->ssl,
54256d49e1aeSJan Lentfer tls_session_ticket_ext_cb, conn);
54266d49e1aeSJan Lentfer } else {
54276d49e1aeSJan Lentfer if (SSL_set_session_secret_cb(conn->ssl, NULL, NULL) != 1)
54286d49e1aeSJan Lentfer return -1;
54296d49e1aeSJan Lentfer SSL_set_session_ticket_ext_cb(conn->ssl, NULL, NULL);
54306d49e1aeSJan Lentfer }
54316d49e1aeSJan Lentfer
54326d49e1aeSJan Lentfer return 0;
5433*a1157835SDaniel Fojt #else /* EAP_FAST_OR_TEAP */
54346d49e1aeSJan Lentfer return -1;
5435*a1157835SDaniel Fojt #endif /* EAP_FAST_OR_TEAP */
5436*a1157835SDaniel Fojt }
5437*a1157835SDaniel Fojt
5438*a1157835SDaniel Fojt
tls_get_library_version(char * buf,size_t buf_len)5439*a1157835SDaniel Fojt int tls_get_library_version(char *buf, size_t buf_len)
5440*a1157835SDaniel Fojt {
5441*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10100000L && !defined(LIBRESSL_VERSION_NUMBER)
5442*a1157835SDaniel Fojt return os_snprintf(buf, buf_len, "OpenSSL build=%s run=%s",
5443*a1157835SDaniel Fojt OPENSSL_VERSION_TEXT,
5444*a1157835SDaniel Fojt OpenSSL_version(OPENSSL_VERSION));
5445*a1157835SDaniel Fojt #else
5446*a1157835SDaniel Fojt return os_snprintf(buf, buf_len, "OpenSSL build=%s run=%s",
5447*a1157835SDaniel Fojt OPENSSL_VERSION_TEXT,
5448*a1157835SDaniel Fojt SSLeay_version(SSLEAY_VERSION));
5449*a1157835SDaniel Fojt #endif
5450*a1157835SDaniel Fojt }
5451*a1157835SDaniel Fojt
5452*a1157835SDaniel Fojt
tls_connection_set_success_data(struct tls_connection * conn,struct wpabuf * data)5453*a1157835SDaniel Fojt void tls_connection_set_success_data(struct tls_connection *conn,
5454*a1157835SDaniel Fojt struct wpabuf *data)
5455*a1157835SDaniel Fojt {
5456*a1157835SDaniel Fojt SSL_SESSION *sess;
5457*a1157835SDaniel Fojt struct wpabuf *old;
5458*a1157835SDaniel Fojt
5459*a1157835SDaniel Fojt if (tls_ex_idx_session < 0)
5460*a1157835SDaniel Fojt goto fail;
5461*a1157835SDaniel Fojt sess = SSL_get_session(conn->ssl);
5462*a1157835SDaniel Fojt if (!sess)
5463*a1157835SDaniel Fojt goto fail;
5464*a1157835SDaniel Fojt old = SSL_SESSION_get_ex_data(sess, tls_ex_idx_session);
5465*a1157835SDaniel Fojt if (old) {
5466*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Replacing old success data %p",
5467*a1157835SDaniel Fojt old);
5468*a1157835SDaniel Fojt wpabuf_free(old);
5469*a1157835SDaniel Fojt }
5470*a1157835SDaniel Fojt if (SSL_SESSION_set_ex_data(sess, tls_ex_idx_session, data) != 1)
5471*a1157835SDaniel Fojt goto fail;
5472*a1157835SDaniel Fojt
5473*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG, "OpenSSL: Stored success data %p", data);
5474*a1157835SDaniel Fojt conn->success_data = 1;
5475*a1157835SDaniel Fojt return;
5476*a1157835SDaniel Fojt
5477*a1157835SDaniel Fojt fail:
5478*a1157835SDaniel Fojt wpa_printf(MSG_INFO, "OpenSSL: Failed to store success data");
5479*a1157835SDaniel Fojt wpabuf_free(data);
5480*a1157835SDaniel Fojt }
5481*a1157835SDaniel Fojt
5482*a1157835SDaniel Fojt
tls_connection_set_success_data_resumed(struct tls_connection * conn)5483*a1157835SDaniel Fojt void tls_connection_set_success_data_resumed(struct tls_connection *conn)
5484*a1157835SDaniel Fojt {
5485*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
5486*a1157835SDaniel Fojt "OpenSSL: Success data accepted for resumed session");
5487*a1157835SDaniel Fojt conn->success_data = 1;
5488*a1157835SDaniel Fojt }
5489*a1157835SDaniel Fojt
5490*a1157835SDaniel Fojt
5491*a1157835SDaniel Fojt const struct wpabuf *
tls_connection_get_success_data(struct tls_connection * conn)5492*a1157835SDaniel Fojt tls_connection_get_success_data(struct tls_connection *conn)
5493*a1157835SDaniel Fojt {
5494*a1157835SDaniel Fojt SSL_SESSION *sess;
5495*a1157835SDaniel Fojt
5496*a1157835SDaniel Fojt if (tls_ex_idx_session < 0 ||
5497*a1157835SDaniel Fojt !(sess = SSL_get_session(conn->ssl)))
5498*a1157835SDaniel Fojt return NULL;
5499*a1157835SDaniel Fojt return SSL_SESSION_get_ex_data(sess, tls_ex_idx_session);
5500*a1157835SDaniel Fojt }
5501*a1157835SDaniel Fojt
5502*a1157835SDaniel Fojt
tls_connection_remove_session(struct tls_connection * conn)5503*a1157835SDaniel Fojt void tls_connection_remove_session(struct tls_connection *conn)
5504*a1157835SDaniel Fojt {
5505*a1157835SDaniel Fojt SSL_SESSION *sess;
5506*a1157835SDaniel Fojt
5507*a1157835SDaniel Fojt sess = SSL_get_session(conn->ssl);
5508*a1157835SDaniel Fojt if (!sess)
5509*a1157835SDaniel Fojt return;
5510*a1157835SDaniel Fojt
5511*a1157835SDaniel Fojt if (SSL_CTX_remove_session(conn->ssl_ctx, sess) != 1)
5512*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
5513*a1157835SDaniel Fojt "OpenSSL: Session was not cached");
5514*a1157835SDaniel Fojt else
5515*a1157835SDaniel Fojt wpa_printf(MSG_DEBUG,
5516*a1157835SDaniel Fojt "OpenSSL: Removed cached session to disable session resumption");
5517*a1157835SDaniel Fojt }
5518*a1157835SDaniel Fojt
5519*a1157835SDaniel Fojt
tls_get_tls_unique(struct tls_connection * conn,u8 * buf,size_t max_len)5520*a1157835SDaniel Fojt int tls_get_tls_unique(struct tls_connection *conn, u8 *buf, size_t max_len)
5521*a1157835SDaniel Fojt {
5522*a1157835SDaniel Fojt size_t len;
5523*a1157835SDaniel Fojt int reused;
5524*a1157835SDaniel Fojt
5525*a1157835SDaniel Fojt reused = SSL_session_reused(conn->ssl);
5526*a1157835SDaniel Fojt if ((conn->server && !reused) || (!conn->server && reused))
5527*a1157835SDaniel Fojt len = SSL_get_peer_finished(conn->ssl, buf, max_len);
5528*a1157835SDaniel Fojt else
5529*a1157835SDaniel Fojt len = SSL_get_finished(conn->ssl, buf, max_len);
5530*a1157835SDaniel Fojt
5531*a1157835SDaniel Fojt if (len == 0 || len > max_len)
5532*a1157835SDaniel Fojt return -1;
5533*a1157835SDaniel Fojt
5534*a1157835SDaniel Fojt return len;
5535*a1157835SDaniel Fojt }
5536*a1157835SDaniel Fojt
5537*a1157835SDaniel Fojt
tls_connection_get_cipher_suite(struct tls_connection * conn)5538*a1157835SDaniel Fojt u16 tls_connection_get_cipher_suite(struct tls_connection *conn)
5539*a1157835SDaniel Fojt {
5540*a1157835SDaniel Fojt const SSL_CIPHER *cipher;
5541*a1157835SDaniel Fojt
5542*a1157835SDaniel Fojt cipher = SSL_get_current_cipher(conn->ssl);
5543*a1157835SDaniel Fojt if (!cipher)
5544*a1157835SDaniel Fojt return 0;
5545*a1157835SDaniel Fojt #if OPENSSL_VERSION_NUMBER >= 0x10101000L && !defined(LIBRESSL_VERSION_NUMBER)
5546*a1157835SDaniel Fojt return SSL_CIPHER_get_protocol_id(cipher);
5547*a1157835SDaniel Fojt #else
5548*a1157835SDaniel Fojt return SSL_CIPHER_get_id(cipher) & 0xFFFF;
5549*a1157835SDaniel Fojt #endif
55506d49e1aeSJan Lentfer }
5551