1 #ifndef HEADER_CURL_VAUTH_H
2 #define HEADER_CURL_VAUTH_H
3 /***************************************************************************
4  *                                  _   _ ____  _
5  *  Project                     ___| | | |  _ \| |
6  *                             / __| | | | |_) | |
7  *                            | (__| |_| |  _ <| |___
8  *                             \___|\___/|_| \_\_____|
9  *
10  * Copyright (C) 2014 - 2019, Steve Holme, <steve_holme@hotmail.com>.
11  *
12  * This software is licensed as described in the file COPYING, which
13  * you should have received as part of this distribution. The terms
14  * are also available at https://curl.haxx.se/docs/copyright.html.
15  *
16  * You may opt to use, copy, modify, merge, publish, distribute and/or sell
17  * copies of the Software, and permit persons to whom the Software is
18  * furnished to do so, under the terms of the COPYING file.
19  *
20  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
21  * KIND, either express or implied.
22  *
23  ***************************************************************************/
24 
25 #include <curl/curl.h>
26 
27 struct Curl_easy;
28 
29 #if !defined(CURL_DISABLE_CRYPTO_AUTH)
30 struct digestdata;
31 #endif
32 
33 #if defined(USE_NTLM)
34 struct ntlmdata;
35 #endif
36 
37 #if defined(USE_KERBEROS5)
38 struct kerberos5data;
39 #endif
40 
41 #if (defined(HAVE_GSSAPI) || defined(USE_WINDOWS_SSPI)) && defined(USE_SPNEGO)
42 struct negotiatedata;
43 #endif
44 
45 #if defined(USE_WINDOWS_SSPI)
46 #define GSS_ERROR(status) ((status) & 0x80000000)
47 #endif
48 
49 /* This is used to build a SPN string */
50 #if !defined(USE_WINDOWS_SSPI)
51 char *Curl_auth_build_spn(const char *service, const char *host,
52                           const char *realm);
53 #else
54 TCHAR *Curl_auth_build_spn(const char *service, const char *host,
55                            const char *realm);
56 #endif
57 
58 /* This is used to test if the user contains a Windows domain name */
59 bool Curl_auth_user_contains_domain(const char *user);
60 
61 /* This is used to generate a base64 encoded PLAIN cleartext message */
62 CURLcode Curl_auth_create_plain_message(struct Curl_easy *data,
63                                         const char *authzid,
64                                         const char *authcid,
65                                         const char *passwd,
66                                         char **outptr, size_t *outlen);
67 
68 /* This is used to generate a base64 encoded LOGIN cleartext message */
69 CURLcode Curl_auth_create_login_message(struct Curl_easy *data,
70                                         const char *valuep, char **outptr,
71                                         size_t *outlen);
72 
73 /* This is used to generate a base64 encoded EXTERNAL cleartext message */
74 CURLcode Curl_auth_create_external_message(struct Curl_easy *data,
75                                            const char *user, char **outptr,
76                                            size_t *outlen);
77 
78 #if !defined(CURL_DISABLE_CRYPTO_AUTH)
79 /* This is used to decode a CRAM-MD5 challenge message */
80 CURLcode Curl_auth_decode_cram_md5_message(const char *chlg64, char **outptr,
81                                            size_t *outlen);
82 
83 /* This is used to generate a CRAM-MD5 response message */
84 CURLcode Curl_auth_create_cram_md5_message(struct Curl_easy *data,
85                                            const char *chlg,
86                                            const char *userp,
87                                            const char *passwdp,
88                                            char **outptr, size_t *outlen);
89 
90 /* This is used to evaluate if DIGEST is supported */
91 bool Curl_auth_is_digest_supported(void);
92 
93 /* This is used to generate a base64 encoded DIGEST-MD5 response message */
94 CURLcode Curl_auth_create_digest_md5_message(struct Curl_easy *data,
95                                              const char *chlg64,
96                                              const char *userp,
97                                              const char *passwdp,
98                                              const char *service,
99                                              char **outptr, size_t *outlen);
100 
101 /* This is used to decode a HTTP DIGEST challenge message */
102 CURLcode Curl_auth_decode_digest_http_message(const char *chlg,
103                                               struct digestdata *digest);
104 
105 /* This is used to generate a HTTP DIGEST response message */
106 CURLcode Curl_auth_create_digest_http_message(struct Curl_easy *data,
107                                               const char *userp,
108                                               const char *passwdp,
109                                               const unsigned char *request,
110                                               const unsigned char *uri,
111                                               struct digestdata *digest,
112                                               char **outptr, size_t *outlen);
113 
114 /* This is used to clean up the digest specific data */
115 void Curl_auth_digest_cleanup(struct digestdata *digest);
116 #endif /* !CURL_DISABLE_CRYPTO_AUTH */
117 
118 #if defined(USE_NTLM)
119 /* This is used to evaluate if NTLM is supported */
120 bool Curl_auth_is_ntlm_supported(void);
121 
122 /* This is used to generate a base64 encoded NTLM type-1 message */
123 CURLcode Curl_auth_create_ntlm_type1_message(struct Curl_easy *data,
124                                              const char *userp,
125                                              const char *passwdp,
126                                              const char *service,
127                                              const char *host,
128                                              struct ntlmdata *ntlm,
129                                              char **outptr,
130                                              size_t *outlen);
131 
132 /* This is used to decode a base64 encoded NTLM type-2 message */
133 CURLcode Curl_auth_decode_ntlm_type2_message(struct Curl_easy *data,
134                                              const char *type2msg,
135                                              struct ntlmdata *ntlm);
136 
137 /* This is used to generate a base64 encoded NTLM type-3 message */
138 CURLcode Curl_auth_create_ntlm_type3_message(struct Curl_easy *data,
139                                              const char *userp,
140                                              const char *passwdp,
141                                              struct ntlmdata *ntlm,
142                                              char **outptr, size_t *outlen);
143 
144 /* This is used to clean up the NTLM specific data */
145 void Curl_auth_cleanup_ntlm(struct ntlmdata *ntlm);
146 #endif /* USE_NTLM */
147 
148 /* This is used to generate a base64 encoded OAuth 2.0 message */
149 CURLcode Curl_auth_create_oauth_bearer_message(struct Curl_easy *data,
150                                                const char *user,
151                                                const char *host,
152                                                const long port,
153                                                const char *bearer,
154                                                char **outptr, size_t *outlen);
155 
156 /* This is used to generate a base64 encoded XOAuth 2.0 message */
157 CURLcode Curl_auth_create_xoauth_bearer_message(struct Curl_easy *data,
158                                                 const char *user,
159                                                 const char *bearer,
160                                                 char **outptr, size_t *outlen);
161 
162 #if defined(USE_KERBEROS5)
163 /* This is used to evaluate if GSSAPI (Kerberos V5) is supported */
164 bool Curl_auth_is_gssapi_supported(void);
165 
166 /* This is used to generate a base64 encoded GSSAPI (Kerberos V5) user token
167    message */
168 CURLcode Curl_auth_create_gssapi_user_message(struct Curl_easy *data,
169                                               const char *userp,
170                                               const char *passwdp,
171                                               const char *service,
172                                               const char *host,
173                                               const bool mutual,
174                                               const char *chlg64,
175                                               struct kerberos5data *krb5,
176                                               char **outptr, size_t *outlen);
177 
178 /* This is used to generate a base64 encoded GSSAPI (Kerberos V5) security
179    token message */
180 CURLcode Curl_auth_create_gssapi_security_message(struct Curl_easy *data,
181                                                   const char *input,
182                                                   struct kerberos5data *krb5,
183                                                   char **outptr,
184                                                   size_t *outlen);
185 
186 /* This is used to clean up the GSSAPI specific data */
187 void Curl_auth_cleanup_gssapi(struct kerberos5data *krb5);
188 #endif /* USE_KERBEROS5 */
189 
190 #if defined(USE_SPNEGO)
191 /* This is used to evaluate if SPNEGO (Negotiate) is supported */
192 bool Curl_auth_is_spnego_supported(void);
193 
194 /* This is used to decode a base64 encoded SPNEGO (Negotiate) challenge
195    message */
196 CURLcode Curl_auth_decode_spnego_message(struct Curl_easy *data,
197                                          const char *user,
198                                          const char *passwood,
199                                          const char *service,
200                                          const char *host,
201                                          const char *chlg64,
202                                          struct negotiatedata *nego);
203 
204 /* This is used to generate a base64 encoded SPNEGO (Negotiate) response
205    message */
206 CURLcode Curl_auth_create_spnego_message(struct Curl_easy *data,
207                                          struct negotiatedata *nego,
208                                          char **outptr, size_t *outlen);
209 
210 /* This is used to clean up the SPNEGO specifiec data */
211 void Curl_auth_cleanup_spnego(struct negotiatedata *nego);
212 
213 #endif /* USE_SPNEGO */
214 
215 #endif /* HEADER_CURL_VAUTH_H */
216