1b9cbc85dSRick Macklem /*- 2b9cbc85dSRick Macklem * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3b9cbc85dSRick Macklem * 4b9cbc85dSRick Macklem * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 5b9cbc85dSRick Macklem * Authors: Doug Rabson <dfr@rabson.org> 6b9cbc85dSRick Macklem * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> 7b9cbc85dSRick Macklem * 8b9cbc85dSRick Macklem * Redistribution and use in source and binary forms, with or without 9b9cbc85dSRick Macklem * modification, are permitted provided that the following conditions 10b9cbc85dSRick Macklem * are met: 11b9cbc85dSRick Macklem * 1. Redistributions of source code must retain the above copyright 12b9cbc85dSRick Macklem * notice, this list of conditions and the following disclaimer. 13b9cbc85dSRick Macklem * 2. Redistributions in binary form must reproduce the above copyright 14b9cbc85dSRick Macklem * notice, this list of conditions and the following disclaimer in the 15b9cbc85dSRick Macklem * documentation and/or other materials provided with the distribution. 16b9cbc85dSRick Macklem * 17b9cbc85dSRick Macklem * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18b9cbc85dSRick Macklem * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19b9cbc85dSRick Macklem * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20b9cbc85dSRick Macklem * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21b9cbc85dSRick Macklem * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22b9cbc85dSRick Macklem * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23b9cbc85dSRick Macklem * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24b9cbc85dSRick Macklem * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25b9cbc85dSRick Macklem * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26b9cbc85dSRick Macklem * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27b9cbc85dSRick Macklem * SUCH DAMAGE. 28b9cbc85dSRick Macklem */ 29b9cbc85dSRick Macklem 30b9cbc85dSRick Macklem /* 31b9cbc85dSRick Macklem * Extensively modified from /usr/src/usr.sbin/gssd.c r344402 for 32b9cbc85dSRick Macklem * the client side of kernel RPC-over-TLS by Rick Macklem. 33b9cbc85dSRick Macklem */ 34b9cbc85dSRick Macklem 35b9cbc85dSRick Macklem #include <sys/cdefs.h> 36b9cbc85dSRick Macklem __FBSDID("$FreeBSD$"); 37b9cbc85dSRick Macklem 38b9cbc85dSRick Macklem #include <sys/param.h> 39b9cbc85dSRick Macklem #include <sys/types.h> 40b9cbc85dSRick Macklem #include <sys/queue.h> 41b9cbc85dSRick Macklem #include <sys/linker.h> 42b9cbc85dSRick Macklem #include <sys/module.h> 43b9cbc85dSRick Macklem #include <sys/stat.h> 44b9cbc85dSRick Macklem #include <sys/sysctl.h> 45b9cbc85dSRick Macklem #include <sys/syslog.h> 46b9cbc85dSRick Macklem #include <sys/time.h> 47b9cbc85dSRick Macklem #include <err.h> 48b9cbc85dSRick Macklem #include <getopt.h> 49b9cbc85dSRick Macklem #include <libutil.h> 50b9cbc85dSRick Macklem #include <netdb.h> 51b9cbc85dSRick Macklem #include <signal.h> 52b9cbc85dSRick Macklem #include <stdarg.h> 53b9cbc85dSRick Macklem #include <stdbool.h> 54b9cbc85dSRick Macklem #include <stdio.h> 55b9cbc85dSRick Macklem #include <stdlib.h> 56b9cbc85dSRick Macklem #include <string.h> 57b9cbc85dSRick Macklem #include <unistd.h> 58b9cbc85dSRick Macklem 59b9cbc85dSRick Macklem #include <rpc/rpc.h> 60b9cbc85dSRick Macklem #include <rpc/rpc_com.h> 61b9cbc85dSRick Macklem #include <rpc/rpcsec_tls.h> 62b9cbc85dSRick Macklem 63b9cbc85dSRick Macklem #include <openssl/opensslconf.h> 64b9cbc85dSRick Macklem #include <openssl/bio.h> 65b9cbc85dSRick Macklem #include <openssl/ssl.h> 66b9cbc85dSRick Macklem #include <openssl/err.h> 67b9cbc85dSRick Macklem #include <openssl/x509v3.h> 68b9cbc85dSRick Macklem 69b9cbc85dSRick Macklem #include "rpctlscd.h" 70b9cbc85dSRick Macklem #include "rpc.tlscommon.h" 71b9cbc85dSRick Macklem 72b9cbc85dSRick Macklem #ifndef _PATH_RPCTLSCDSOCK 73b9cbc85dSRick Macklem #define _PATH_RPCTLSCDSOCK "/var/run/rpc.tlsclntd.sock" 74b9cbc85dSRick Macklem #endif 75b9cbc85dSRick Macklem #ifndef _PATH_CERTANDKEY 76b9cbc85dSRick Macklem #define _PATH_CERTANDKEY "/etc/rpc.tlsclntd/" 77b9cbc85dSRick Macklem #endif 78b9cbc85dSRick Macklem #ifndef _PATH_RPCTLSCDPID 79b9cbc85dSRick Macklem #define _PATH_RPCTLSCDPID "/var/run/rpc.tlsclntd.pid" 80b9cbc85dSRick Macklem #endif 81b9cbc85dSRick Macklem 82b9cbc85dSRick Macklem /* Global variables also used by rpc.tlscommon.c. */ 83b9cbc85dSRick Macklem int rpctls_debug_level; 84b9cbc85dSRick Macklem bool rpctls_verbose; 85b9cbc85dSRick Macklem SSL_CTX *rpctls_ctx = NULL; 86b9cbc85dSRick Macklem const char *rpctls_verify_cafile = NULL; 87b9cbc85dSRick Macklem const char *rpctls_verify_capath = NULL; 88b9cbc85dSRick Macklem char *rpctls_crlfile = NULL; 89b9cbc85dSRick Macklem bool rpctls_cert = false; 90b9cbc85dSRick Macklem bool rpctls_gothup = false; 91b9cbc85dSRick Macklem struct ssl_list rpctls_ssllist; 92b9cbc85dSRick Macklem 93b9cbc85dSRick Macklem static struct pidfh *rpctls_pfh = NULL; 94b9cbc85dSRick Macklem static const char *rpctls_certdir = _PATH_CERTANDKEY; 95b9cbc85dSRick Macklem static const char *rpctls_ciphers = NULL; 96b9cbc85dSRick Macklem static uint64_t rpctls_ssl_refno = 0; 97b9cbc85dSRick Macklem static uint64_t rpctls_ssl_sec = 0; 98b9cbc85dSRick Macklem static uint64_t rpctls_ssl_usec = 0; 9972bf76d6SRick Macklem static int rpctls_tlsvers = TLS1_3_VERSION; 100b9cbc85dSRick Macklem 101b9cbc85dSRick Macklem static void rpctlscd_terminate(int); 102b9cbc85dSRick Macklem static SSL_CTX *rpctls_setupcl_ssl(void); 103b9cbc85dSRick Macklem static SSL *rpctls_connect(SSL_CTX *ctx, int s, char *certname, 104b9cbc85dSRick Macklem u_int certlen, X509 **certp); 105b9cbc85dSRick Macklem static void rpctls_huphandler(int sig __unused); 106b9cbc85dSRick Macklem 107b9cbc85dSRick Macklem extern void rpctlscd_1(struct svc_req *rqstp, SVCXPRT *transp); 108b9cbc85dSRick Macklem 109b9cbc85dSRick Macklem static struct option longopts[] = { 11072bf76d6SRick Macklem { "usetls1_2", no_argument, NULL, '2' }, 111b9cbc85dSRick Macklem { "certdir", required_argument, NULL, 'D' }, 112b9cbc85dSRick Macklem { "ciphers", required_argument, NULL, 'C' }, 113b9cbc85dSRick Macklem { "debuglevel", no_argument, NULL, 'd' }, 114b9cbc85dSRick Macklem { "verifylocs", required_argument, NULL, 'l' }, 115b9cbc85dSRick Macklem { "mutualverf", no_argument, NULL, 'm' }, 116b9cbc85dSRick Macklem { "verifydir", required_argument, NULL, 'p' }, 117b9cbc85dSRick Macklem { "crl", required_argument, NULL, 'r' }, 118b9cbc85dSRick Macklem { "verbose", no_argument, NULL, 'v' }, 119b9cbc85dSRick Macklem { NULL, 0, NULL, 0 } 120b9cbc85dSRick Macklem }; 121b9cbc85dSRick Macklem 122b9cbc85dSRick Macklem int 123b9cbc85dSRick Macklem main(int argc, char **argv) 124b9cbc85dSRick Macklem { 125b9cbc85dSRick Macklem /* 126b9cbc85dSRick Macklem * We provide an RPC service on a local-domain socket. The 127b9cbc85dSRick Macklem * kernel rpctls code will upcall to this daemon to do the initial 128b9cbc85dSRick Macklem * TLS handshake. 129b9cbc85dSRick Macklem */ 130b9cbc85dSRick Macklem struct sockaddr_un sun; 131b9cbc85dSRick Macklem int ch, fd, oldmask; 132b9cbc85dSRick Macklem SVCXPRT *xprt; 133b9cbc85dSRick Macklem bool tls_enable; 134b9cbc85dSRick Macklem struct timeval tm; 135b9cbc85dSRick Macklem struct timezone tz; 136b9cbc85dSRick Macklem pid_t otherpid; 137b9cbc85dSRick Macklem size_t tls_enable_len; 138b9cbc85dSRick Macklem 139b9cbc85dSRick Macklem /* Check that another rpctlscd isn't already running. */ 140b9cbc85dSRick Macklem rpctls_pfh = pidfile_open(_PATH_RPCTLSCDPID, 0600, &otherpid); 141b9cbc85dSRick Macklem if (rpctls_pfh == NULL) { 142b9cbc85dSRick Macklem if (errno == EEXIST) 143b9cbc85dSRick Macklem errx(1, "rpctlscd already running, pid: %d.", otherpid); 144b9cbc85dSRick Macklem warn("cannot open or create pidfile"); 145b9cbc85dSRick Macklem } 146b9cbc85dSRick Macklem 147b9cbc85dSRick Macklem /* Check to see that the ktls is enabled. */ 148b9cbc85dSRick Macklem tls_enable_len = sizeof(tls_enable); 149b9cbc85dSRick Macklem if (sysctlbyname("kern.ipc.tls.enable", &tls_enable, &tls_enable_len, 150b9cbc85dSRick Macklem NULL, 0) != 0 || !tls_enable) 151b9cbc85dSRick Macklem errx(1, "Kernel TLS not enabled"); 152b9cbc85dSRick Macklem 153b9cbc85dSRick Macklem /* Get the time when this daemon is started. */ 154b9cbc85dSRick Macklem gettimeofday(&tm, &tz); 155b9cbc85dSRick Macklem rpctls_ssl_sec = tm.tv_sec; 156b9cbc85dSRick Macklem rpctls_ssl_usec = tm.tv_usec; 157b9cbc85dSRick Macklem 158b9cbc85dSRick Macklem rpctls_verbose = false; 15972bf76d6SRick Macklem while ((ch = getopt_long(argc, argv, "2C:D:dl:mp:r:v", longopts, 16015881823SRick Macklem NULL)) != -1) { 161b9cbc85dSRick Macklem switch (ch) { 16272bf76d6SRick Macklem case '2': 16372bf76d6SRick Macklem rpctls_tlsvers = TLS1_2_VERSION; 16472bf76d6SRick Macklem break; 165b9cbc85dSRick Macklem case 'C': 166b9cbc85dSRick Macklem rpctls_ciphers = optarg; 167b9cbc85dSRick Macklem break; 168b9cbc85dSRick Macklem case 'D': 169b9cbc85dSRick Macklem rpctls_certdir = optarg; 170b9cbc85dSRick Macklem break; 171b9cbc85dSRick Macklem case 'd': 172b9cbc85dSRick Macklem rpctls_debug_level++; 173b9cbc85dSRick Macklem break; 174b9cbc85dSRick Macklem case 'l': 175b9cbc85dSRick Macklem rpctls_verify_cafile = optarg; 176b9cbc85dSRick Macklem break; 177b9cbc85dSRick Macklem case 'm': 178b9cbc85dSRick Macklem rpctls_cert = true; 179b9cbc85dSRick Macklem break; 180b9cbc85dSRick Macklem case 'p': 181b9cbc85dSRick Macklem rpctls_verify_capath = optarg; 182b9cbc85dSRick Macklem break; 183b9cbc85dSRick Macklem case 'r': 184b9cbc85dSRick Macklem rpctls_crlfile = optarg; 185b9cbc85dSRick Macklem break; 186b9cbc85dSRick Macklem case 'v': 187b9cbc85dSRick Macklem rpctls_verbose = true; 188b9cbc85dSRick Macklem break; 189b9cbc85dSRick Macklem default: 190b9cbc85dSRick Macklem fprintf(stderr, "usage: %s " 191b387a075SRick Macklem "[-2/--usetls1_2] " 192f5b40aa0SRick Macklem "[-C/--ciphers available_ciphers] " 193b9cbc85dSRick Macklem "[-D/--certdir certdir] [-d/--debuglevel] " 194b9cbc85dSRick Macklem "[-l/--verifylocs CAfile] [-m/--mutualverf] " 195b9cbc85dSRick Macklem "[-p/--verifydir CApath] [-r/--crl CRLfile] " 196b9cbc85dSRick Macklem "[-v/--verbose]\n", argv[0]); 197b9cbc85dSRick Macklem exit(1); 198b9cbc85dSRick Macklem break; 199b9cbc85dSRick Macklem } 200b9cbc85dSRick Macklem } 201b9cbc85dSRick Macklem if (rpctls_crlfile != NULL && rpctls_verify_cafile == NULL && 202b9cbc85dSRick Macklem rpctls_verify_capath == NULL) 203b9cbc85dSRick Macklem errx(1, "-r requires the -l <CAfile> and/or " 204b9cbc85dSRick Macklem "-p <CApath> options"); 205b9cbc85dSRick Macklem 206b9cbc85dSRick Macklem if (modfind("krpc") < 0) { 207b9cbc85dSRick Macklem /* Not present in kernel, try loading it */ 208b9cbc85dSRick Macklem if (kldload("krpc") < 0 || modfind("krpc") < 0) 209b9cbc85dSRick Macklem errx(1, "Kernel RPC is not available"); 210b9cbc85dSRick Macklem } 211b9cbc85dSRick Macklem 212b9cbc85dSRick Macklem /* 213b9cbc85dSRick Macklem * Set up the SSL_CTX *. 214b9cbc85dSRick Macklem * Do it now, before daemonizing, in case the private key 215b9cbc85dSRick Macklem * is encrypted and requires a passphrase to be entered. 216b9cbc85dSRick Macklem */ 217b9cbc85dSRick Macklem rpctls_ctx = rpctls_setupcl_ssl(); 218b9cbc85dSRick Macklem if (rpctls_ctx == NULL) { 219b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 220b9cbc85dSRick Macklem syslog(LOG_ERR, "Can't set up TLS context"); 221b9cbc85dSRick Macklem exit(1); 222b9cbc85dSRick Macklem } 223b9cbc85dSRick Macklem err(1, "Can't set up TLS context"); 224b9cbc85dSRick Macklem } 225b9cbc85dSRick Macklem LIST_INIT(&rpctls_ssllist); 226b9cbc85dSRick Macklem 227b9cbc85dSRick Macklem if (!rpctls_debug_level) { 228b9cbc85dSRick Macklem if (daemon(0, 0) != 0) 229b9cbc85dSRick Macklem err(1, "Can't daemonize"); 230b9cbc85dSRick Macklem signal(SIGINT, SIG_IGN); 231b9cbc85dSRick Macklem signal(SIGQUIT, SIG_IGN); 232b9cbc85dSRick Macklem signal(SIGHUP, SIG_IGN); 233b9cbc85dSRick Macklem } 234b9cbc85dSRick Macklem signal(SIGTERM, rpctlscd_terminate); 235b9cbc85dSRick Macklem signal(SIGPIPE, SIG_IGN); 236b9cbc85dSRick Macklem signal(SIGHUP, rpctls_huphandler); 237b9cbc85dSRick Macklem 238b9cbc85dSRick Macklem pidfile_write(rpctls_pfh); 239b9cbc85dSRick Macklem 240b9cbc85dSRick Macklem memset(&sun, 0, sizeof sun); 241b9cbc85dSRick Macklem sun.sun_family = AF_LOCAL; 242b9cbc85dSRick Macklem unlink(_PATH_RPCTLSCDSOCK); 243b9cbc85dSRick Macklem strcpy(sun.sun_path, _PATH_RPCTLSCDSOCK); 244b9cbc85dSRick Macklem sun.sun_len = SUN_LEN(&sun); 245b9cbc85dSRick Macklem fd = socket(AF_LOCAL, SOCK_STREAM, 0); 246b9cbc85dSRick Macklem if (fd < 0) { 247b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 248b9cbc85dSRick Macklem syslog(LOG_ERR, "Can't create local rpctlscd socket"); 249b9cbc85dSRick Macklem exit(1); 250b9cbc85dSRick Macklem } 251b9cbc85dSRick Macklem err(1, "Can't create local rpctlscd socket"); 252b9cbc85dSRick Macklem } 253b9cbc85dSRick Macklem oldmask = umask(S_IXUSR|S_IRWXG|S_IRWXO); 254b9cbc85dSRick Macklem if (bind(fd, (struct sockaddr *)&sun, sun.sun_len) < 0) { 255b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 256b9cbc85dSRick Macklem syslog(LOG_ERR, "Can't bind local rpctlscd socket"); 257b9cbc85dSRick Macklem exit(1); 258b9cbc85dSRick Macklem } 259b9cbc85dSRick Macklem err(1, "Can't bind local rpctlscd socket"); 260b9cbc85dSRick Macklem } 261b9cbc85dSRick Macklem umask(oldmask); 262b9cbc85dSRick Macklem if (listen(fd, SOMAXCONN) < 0) { 263b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 264b9cbc85dSRick Macklem syslog(LOG_ERR, 265b9cbc85dSRick Macklem "Can't listen on local rpctlscd socket"); 266b9cbc85dSRick Macklem exit(1); 267b9cbc85dSRick Macklem } 268b9cbc85dSRick Macklem err(1, "Can't listen on local rpctlscd socket"); 269b9cbc85dSRick Macklem } 270b9cbc85dSRick Macklem xprt = svc_vc_create(fd, RPC_MAXDATASIZE, RPC_MAXDATASIZE); 271b9cbc85dSRick Macklem if (!xprt) { 272b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 273b9cbc85dSRick Macklem syslog(LOG_ERR, 274b9cbc85dSRick Macklem "Can't create transport for local rpctlscd socket"); 275b9cbc85dSRick Macklem exit(1); 276b9cbc85dSRick Macklem } 277b9cbc85dSRick Macklem err(1, "Can't create transport for local rpctlscd socket"); 278b9cbc85dSRick Macklem } 279b9cbc85dSRick Macklem if (!svc_reg(xprt, RPCTLSCD, RPCTLSCDVERS, rpctlscd_1, NULL)) { 280b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 281b9cbc85dSRick Macklem syslog(LOG_ERR, 282b9cbc85dSRick Macklem "Can't register service for local rpctlscd socket"); 283b9cbc85dSRick Macklem exit(1); 284b9cbc85dSRick Macklem } 285b9cbc85dSRick Macklem err(1, "Can't register service for local rpctlscd socket"); 286b9cbc85dSRick Macklem } 287b9cbc85dSRick Macklem 2883fe0cb66SRick Macklem if (rpctls_syscall(RPCTLS_SYSC_CLSETPATH, _PATH_RPCTLSCDSOCK) < 0) { 2893fe0cb66SRick Macklem if (rpctls_debug_level == 0) { 2903fe0cb66SRick Macklem syslog(LOG_ERR, 2913fe0cb66SRick Macklem "Can't set upcall socket path errno=%d", errno); 2923fe0cb66SRick Macklem exit(1); 2933fe0cb66SRick Macklem } 2943fe0cb66SRick Macklem err(1, "Can't set upcall socket path"); 2953fe0cb66SRick Macklem } 296b9cbc85dSRick Macklem 297b9cbc85dSRick Macklem rpctls_svc_run(); 298b9cbc85dSRick Macklem 299b9cbc85dSRick Macklem rpctls_syscall(RPCTLS_SYSC_CLSHUTDOWN, ""); 300b9cbc85dSRick Macklem 301b9cbc85dSRick Macklem SSL_CTX_free(rpctls_ctx); 302b9cbc85dSRick Macklem EVP_cleanup(); 303b9cbc85dSRick Macklem return (0); 304b9cbc85dSRick Macklem } 305b9cbc85dSRick Macklem 306b9cbc85dSRick Macklem bool_t 307b9cbc85dSRick Macklem rpctlscd_null_1_svc(__unused void *argp, __unused void *result, 308b9cbc85dSRick Macklem __unused struct svc_req *rqstp) 309b9cbc85dSRick Macklem { 310b9cbc85dSRick Macklem 311b9cbc85dSRick Macklem rpctls_verbose_out("rpctlscd_null: done\n"); 312b9cbc85dSRick Macklem return (TRUE); 313b9cbc85dSRick Macklem } 314b9cbc85dSRick Macklem 315b9cbc85dSRick Macklem bool_t 316b9cbc85dSRick Macklem rpctlscd_connect_1_svc(struct rpctlscd_connect_arg *argp, 317b9cbc85dSRick Macklem struct rpctlscd_connect_res *result, __unused struct svc_req *rqstp) 318b9cbc85dSRick Macklem { 319b9cbc85dSRick Macklem int s; 320b9cbc85dSRick Macklem SSL *ssl; 321b9cbc85dSRick Macklem struct ssl_entry *newslp; 322b9cbc85dSRick Macklem X509 *cert; 323b9cbc85dSRick Macklem 324b9cbc85dSRick Macklem rpctls_verbose_out("rpctlsd_connect: started\n"); 325b9cbc85dSRick Macklem /* Get the socket fd from the kernel. */ 326b9cbc85dSRick Macklem s = rpctls_syscall(RPCTLS_SYSC_CLSOCKET, ""); 327b9cbc85dSRick Macklem if (s < 0) { 328b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOSOCKET; 329b9cbc85dSRick Macklem return (TRUE); 330b9cbc85dSRick Macklem } 331b9cbc85dSRick Macklem 332b9cbc85dSRick Macklem /* Do a TLS connect handshake. */ 333b9cbc85dSRick Macklem ssl = rpctls_connect(rpctls_ctx, s, argp->certname.certname_val, 334b9cbc85dSRick Macklem argp->certname.certname_len, &cert); 335b9cbc85dSRick Macklem if (ssl == NULL) { 336b9cbc85dSRick Macklem rpctls_verbose_out("rpctlsd_connect: can't do TLS " 337b9cbc85dSRick Macklem "handshake\n"); 338b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOSSL; 339b9cbc85dSRick Macklem } else { 340b9cbc85dSRick Macklem result->reterr = RPCTLSERR_OK; 341b9cbc85dSRick Macklem result->sec = rpctls_ssl_sec; 342b9cbc85dSRick Macklem result->usec = rpctls_ssl_usec; 343b9cbc85dSRick Macklem result->ssl = ++rpctls_ssl_refno; 344b9cbc85dSRick Macklem /* Hard to believe this will ever wrap around.. */ 345b9cbc85dSRick Macklem if (rpctls_ssl_refno == 0) 346b9cbc85dSRick Macklem result->ssl = ++rpctls_ssl_refno; 347b9cbc85dSRick Macklem } 348b9cbc85dSRick Macklem 349b9cbc85dSRick Macklem if (ssl == NULL) { 350b9cbc85dSRick Macklem /* 351b9cbc85dSRick Macklem * For RPC-over-TLS, this upcall is expected 352b9cbc85dSRick Macklem * to close off the socket. 353b9cbc85dSRick Macklem */ 354b9cbc85dSRick Macklem close(s); 355b9cbc85dSRick Macklem return (TRUE); 356b9cbc85dSRick Macklem } 357b9cbc85dSRick Macklem 358b9cbc85dSRick Macklem /* Maintain list of all current SSL *'s */ 359b9cbc85dSRick Macklem newslp = malloc(sizeof(*newslp)); 360b9cbc85dSRick Macklem newslp->refno = rpctls_ssl_refno; 361b9cbc85dSRick Macklem newslp->s = s; 362b9cbc85dSRick Macklem newslp->shutoff = false; 363b9cbc85dSRick Macklem newslp->ssl = ssl; 364b9cbc85dSRick Macklem newslp->cert = cert; 365b9cbc85dSRick Macklem LIST_INSERT_HEAD(&rpctls_ssllist, newslp, next); 366b9cbc85dSRick Macklem return (TRUE); 367b9cbc85dSRick Macklem } 368b9cbc85dSRick Macklem 369b9cbc85dSRick Macklem bool_t 370b9cbc85dSRick Macklem rpctlscd_handlerecord_1_svc(struct rpctlscd_handlerecord_arg *argp, 371b9cbc85dSRick Macklem struct rpctlscd_handlerecord_res *result, __unused struct svc_req *rqstp) 372b9cbc85dSRick Macklem { 373b9cbc85dSRick Macklem struct ssl_entry *slp; 374b9cbc85dSRick Macklem int ret; 375b9cbc85dSRick Macklem char junk; 376b9cbc85dSRick Macklem 377b9cbc85dSRick Macklem slp = NULL; 378b9cbc85dSRick Macklem if (argp->sec == rpctls_ssl_sec && argp->usec == 379b9cbc85dSRick Macklem rpctls_ssl_usec) { 380b9cbc85dSRick Macklem LIST_FOREACH(slp, &rpctls_ssllist, next) { 381b9cbc85dSRick Macklem if (slp->refno == argp->ssl) 382b9cbc85dSRick Macklem break; 383b9cbc85dSRick Macklem } 384b9cbc85dSRick Macklem } 385b9cbc85dSRick Macklem 386b9cbc85dSRick Macklem if (slp != NULL) { 387b9cbc85dSRick Macklem rpctls_verbose_out("rpctlscd_handlerecord fd=%d\n", 388b9cbc85dSRick Macklem slp->s); 389b9cbc85dSRick Macklem /* 390b9cbc85dSRick Macklem * An SSL_read() of 0 bytes should fail, but it should 391b9cbc85dSRick Macklem * handle the non-application data record before doing so. 392b9cbc85dSRick Macklem */ 393b9cbc85dSRick Macklem ret = SSL_read(slp->ssl, &junk, 0); 394b9cbc85dSRick Macklem if (ret <= 0) { 395b9cbc85dSRick Macklem /* Check to see if this was a close alert. */ 396b9cbc85dSRick Macklem ret = SSL_get_shutdown(slp->ssl); 397b9cbc85dSRick Macklem if ((ret & (SSL_SENT_SHUTDOWN | 398b9cbc85dSRick Macklem SSL_RECEIVED_SHUTDOWN)) == SSL_RECEIVED_SHUTDOWN) 399b9cbc85dSRick Macklem SSL_shutdown(slp->ssl); 400b9cbc85dSRick Macklem } else { 401b9cbc85dSRick Macklem if (rpctls_debug_level == 0) 402b9cbc85dSRick Macklem syslog(LOG_ERR, "SSL_read returned %d", ret); 403b9cbc85dSRick Macklem else 404b9cbc85dSRick Macklem fprintf(stderr, "SSL_read returned %d\n", ret); 405b9cbc85dSRick Macklem } 406b9cbc85dSRick Macklem result->reterr = RPCTLSERR_OK; 407b9cbc85dSRick Macklem } else 408b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOSSL; 409b9cbc85dSRick Macklem return (TRUE); 410b9cbc85dSRick Macklem } 411b9cbc85dSRick Macklem 412b9cbc85dSRick Macklem bool_t 413b9cbc85dSRick Macklem rpctlscd_disconnect_1_svc(struct rpctlscd_disconnect_arg *argp, 414b9cbc85dSRick Macklem struct rpctlscd_disconnect_res *result, __unused struct svc_req *rqstp) 415b9cbc85dSRick Macklem { 416b9cbc85dSRick Macklem struct ssl_entry *slp; 417b9cbc85dSRick Macklem int ret; 418b9cbc85dSRick Macklem 419b9cbc85dSRick Macklem slp = NULL; 420b9cbc85dSRick Macklem if (argp->sec == rpctls_ssl_sec && argp->usec == 421b9cbc85dSRick Macklem rpctls_ssl_usec) { 422b9cbc85dSRick Macklem LIST_FOREACH(slp, &rpctls_ssllist, next) { 423b9cbc85dSRick Macklem if (slp->refno == argp->ssl) 424b9cbc85dSRick Macklem break; 425b9cbc85dSRick Macklem } 426b9cbc85dSRick Macklem } 427b9cbc85dSRick Macklem 428b9cbc85dSRick Macklem if (slp != NULL) { 429b9cbc85dSRick Macklem rpctls_verbose_out("rpctlscd_disconnect: fd=%d closed\n", 430b9cbc85dSRick Macklem slp->s); 431b9cbc85dSRick Macklem LIST_REMOVE(slp, next); 432b9cbc85dSRick Macklem if (!slp->shutoff) { 433b9cbc85dSRick Macklem ret = SSL_get_shutdown(slp->ssl); 434b9cbc85dSRick Macklem /* 435b9cbc85dSRick Macklem * Do an SSL_shutdown() unless a close alert has 436b9cbc85dSRick Macklem * already been sent. 437b9cbc85dSRick Macklem */ 438b9cbc85dSRick Macklem if ((ret & SSL_SENT_SHUTDOWN) == 0) 439b9cbc85dSRick Macklem SSL_shutdown(slp->ssl); 440b9cbc85dSRick Macklem } 441b9cbc85dSRick Macklem SSL_free(slp->ssl); 442b9cbc85dSRick Macklem if (slp->cert != NULL) 443b9cbc85dSRick Macklem X509_free(slp->cert); 444b9cbc85dSRick Macklem /* 445b9cbc85dSRick Macklem * For RPC-over-TLS, this upcall is expected 446b9cbc85dSRick Macklem * to close off the socket. 447b9cbc85dSRick Macklem */ 448b9cbc85dSRick Macklem if (!slp->shutoff) 449b9cbc85dSRick Macklem shutdown(slp->s, SHUT_WR); 450b9cbc85dSRick Macklem close(slp->s); 451b9cbc85dSRick Macklem free(slp); 452b9cbc85dSRick Macklem result->reterr = RPCTLSERR_OK; 453b9cbc85dSRick Macklem } else 454b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOCLOSE; 455b9cbc85dSRick Macklem return (TRUE); 456b9cbc85dSRick Macklem } 457b9cbc85dSRick Macklem 458b9cbc85dSRick Macklem int 459b9cbc85dSRick Macklem rpctlscd_1_freeresult(__unused SVCXPRT *transp, __unused xdrproc_t xdr_result, 460b9cbc85dSRick Macklem __unused caddr_t result) 461b9cbc85dSRick Macklem { 462b9cbc85dSRick Macklem 463b9cbc85dSRick Macklem return (TRUE); 464b9cbc85dSRick Macklem } 465b9cbc85dSRick Macklem 466b9cbc85dSRick Macklem static void 467b9cbc85dSRick Macklem rpctlscd_terminate(int sig __unused) 468b9cbc85dSRick Macklem { 469b9cbc85dSRick Macklem 470b9cbc85dSRick Macklem rpctls_syscall(RPCTLS_SYSC_CLSHUTDOWN, ""); 471b9cbc85dSRick Macklem pidfile_remove(rpctls_pfh); 472b9cbc85dSRick Macklem exit(0); 473b9cbc85dSRick Macklem } 474b9cbc85dSRick Macklem 475b9cbc85dSRick Macklem static SSL_CTX * 476b9cbc85dSRick Macklem rpctls_setupcl_ssl(void) 477b9cbc85dSRick Macklem { 478b9cbc85dSRick Macklem SSL_CTX *ctx; 479b9cbc85dSRick Macklem char path[PATH_MAX]; 480b9cbc85dSRick Macklem size_t len, rlen; 481b9cbc85dSRick Macklem int ret; 482b9cbc85dSRick Macklem 483b9cbc85dSRick Macklem SSL_library_init(); 484b9cbc85dSRick Macklem SSL_load_error_strings(); 485b9cbc85dSRick Macklem OpenSSL_add_all_algorithms(); 486b9cbc85dSRick Macklem 487b9cbc85dSRick Macklem ctx = SSL_CTX_new(TLS_client_method()); 488b9cbc85dSRick Macklem if (ctx == NULL) { 489b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: SSL_CTX_new " 490b9cbc85dSRick Macklem "failed\n"); 491b9cbc85dSRick Macklem return (NULL); 492b9cbc85dSRick Macklem } 493b9cbc85dSRick Macklem SSL_CTX_set_ecdh_auto(ctx, 1); 494b9cbc85dSRick Macklem 495b9cbc85dSRick Macklem if (rpctls_ciphers != NULL) { 496b9cbc85dSRick Macklem /* 497f5b40aa0SRick Macklem * Set available ciphers, since KERN_TLS only supports a 498b9cbc85dSRick Macklem * few of them. 499b9cbc85dSRick Macklem */ 500f5b40aa0SRick Macklem ret = SSL_CTX_set_ciphersuites(ctx, rpctls_ciphers); 501b9cbc85dSRick Macklem if (ret == 0) { 502b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 503f5b40aa0SRick Macklem "SSL_CTX_set_ciphersuites failed: %s\n", 504b9cbc85dSRick Macklem rpctls_ciphers); 505b9cbc85dSRick Macklem SSL_CTX_free(ctx); 506b9cbc85dSRick Macklem return (NULL); 507b9cbc85dSRick Macklem } 508b9cbc85dSRick Macklem } 509b9cbc85dSRick Macklem 510b9cbc85dSRick Macklem /* 511b9cbc85dSRick Macklem * If rpctls_cert is true, a certificate and key exists in 512b9cbc85dSRick Macklem * rpctls_certdir, so that it can do mutual authentication. 513b9cbc85dSRick Macklem */ 514b9cbc85dSRick Macklem if (rpctls_cert) { 515b9cbc85dSRick Macklem /* Get the cert.pem and certkey.pem files. */ 516b9cbc85dSRick Macklem len = strlcpy(path, rpctls_certdir, sizeof(path)); 517b9cbc85dSRick Macklem rlen = sizeof(path) - len; 518b9cbc85dSRick Macklem if (strlcpy(&path[len], "cert.pem", rlen) != 8) { 519b9cbc85dSRick Macklem SSL_CTX_free(ctx); 520b9cbc85dSRick Macklem return (NULL); 521b9cbc85dSRick Macklem } 522b9cbc85dSRick Macklem ret = SSL_CTX_use_certificate_file(ctx, path, 523b9cbc85dSRick Macklem SSL_FILETYPE_PEM); 524b9cbc85dSRick Macklem if (ret != 1) { 525b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: can't use " 526b9cbc85dSRick Macklem "certificate file path=%s ret=%d\n", path, ret); 527b9cbc85dSRick Macklem SSL_CTX_free(ctx); 528b9cbc85dSRick Macklem return (NULL); 529b9cbc85dSRick Macklem } 530b9cbc85dSRick Macklem if (strlcpy(&path[len], "certkey.pem", rlen) != 11) { 531b9cbc85dSRick Macklem SSL_CTX_free(ctx); 532b9cbc85dSRick Macklem return (NULL); 533b9cbc85dSRick Macklem } 534b9cbc85dSRick Macklem ret = SSL_CTX_use_PrivateKey_file(ctx, path, 535b9cbc85dSRick Macklem SSL_FILETYPE_PEM); 536b9cbc85dSRick Macklem if (ret != 1) { 537b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: Can't use " 538b9cbc85dSRick Macklem "private key path=%s ret=%d\n", path, ret); 539b9cbc85dSRick Macklem SSL_CTX_free(ctx); 540b9cbc85dSRick Macklem return (NULL); 541b9cbc85dSRick Macklem } 542b9cbc85dSRick Macklem } 543b9cbc85dSRick Macklem 544b9cbc85dSRick Macklem if (rpctls_verify_cafile != NULL || rpctls_verify_capath != NULL) { 545b9cbc85dSRick Macklem if (rpctls_crlfile != NULL) { 546b9cbc85dSRick Macklem ret = rpctls_loadcrlfile(ctx); 547b9cbc85dSRick Macklem if (ret == 0) { 548b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 549b9cbc85dSRick Macklem "Load CRLfile failed\n"); 550b9cbc85dSRick Macklem SSL_CTX_free(ctx); 551b9cbc85dSRick Macklem return (NULL); 552b9cbc85dSRick Macklem } 553b9cbc85dSRick Macklem } 554b9cbc85dSRick Macklem #if OPENSSL_VERSION_NUMBER >= 0x30000000 555b9cbc85dSRick Macklem ret = 1; 556b9cbc85dSRick Macklem if (rpctls_verify_cafile != NULL) 557b9cbc85dSRick Macklem ret = SSL_CTX_load_verify_file(ctx, 558b9cbc85dSRick Macklem rpctls_verify_cafile); 559b9cbc85dSRick Macklem if (ret != 0 && rpctls_verify_capath != NULL) 560b9cbc85dSRick Macklem ret = SSL_CTX_load_verify_dir(ctx, 561b9cbc85dSRick Macklem rpctls_verify_capath); 562b9cbc85dSRick Macklem #else 563b9cbc85dSRick Macklem ret = SSL_CTX_load_verify_locations(ctx, 564b9cbc85dSRick Macklem rpctls_verify_cafile, rpctls_verify_capath); 565b9cbc85dSRick Macklem #endif 566b9cbc85dSRick Macklem if (ret == 0) { 567b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 568b9cbc85dSRick Macklem "Can't load verify locations\n"); 569b9cbc85dSRick Macklem SSL_CTX_free(ctx); 570b9cbc85dSRick Macklem return (NULL); 571b9cbc85dSRick Macklem } 572b9cbc85dSRick Macklem /* 573b9cbc85dSRick Macklem * The man page says that the 574b9cbc85dSRick Macklem * SSL_CTX_set0_CA_list() call is not normally 575b9cbc85dSRick Macklem * needed, but I believe it is harmless. 576b9cbc85dSRick Macklem */ 577b9cbc85dSRick Macklem if (rpctls_verify_cafile != NULL) 578b9cbc85dSRick Macklem SSL_CTX_set0_CA_list(ctx, 579b9cbc85dSRick Macklem SSL_load_client_CA_file(rpctls_verify_cafile)); 580b9cbc85dSRick Macklem } 581b9cbc85dSRick Macklem 58272bf76d6SRick Macklem /* 58372bf76d6SRick Macklem * The RFC specifies that RPC-over-TLS must use TLS1.3. 58472bf76d6SRick Macklem * However, early FreeBSD versions (13.0, 13.1) did not 58572bf76d6SRick Macklem * support RX for KTLS1.3, so TLS1.2 needs to be used for 58672bf76d6SRick Macklem * these servers. 58772bf76d6SRick Macklem */ 58872bf76d6SRick Macklem ret = SSL_CTX_set_min_proto_version(ctx, rpctls_tlsvers); 58972bf76d6SRick Macklem if (ret == 0) { 59072bf76d6SRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 59172bf76d6SRick Macklem "SSL_CTX_set_min_proto_version failed\n"); 59272bf76d6SRick Macklem SSL_CTX_free(ctx); 59372bf76d6SRick Macklem return (NULL); 59472bf76d6SRick Macklem } 59572bf76d6SRick Macklem ret = SSL_CTX_set_max_proto_version(ctx, rpctls_tlsvers); 59672bf76d6SRick Macklem if (ret == 0) { 59772bf76d6SRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 59872bf76d6SRick Macklem "SSL_CTX_set_max_proto_version failed\n"); 59972bf76d6SRick Macklem SSL_CTX_free(ctx); 60072bf76d6SRick Macklem return (NULL); 60172bf76d6SRick Macklem } 60272bf76d6SRick Macklem 603c7bb0f47SJohn Baldwin #ifdef SSL_OP_ENABLE_KTLS 60472bf76d6SRick Macklem SSL_CTX_set_options(ctx, SSL_OP_ENABLE_KTLS); 605c7bb0f47SJohn Baldwin #endif 606c7bb0f47SJohn Baldwin #ifdef SSL_MODE_NO_KTLS_TX 607b9cbc85dSRick Macklem SSL_CTX_clear_mode(ctx, SSL_MODE_NO_KTLS_TX | SSL_MODE_NO_KTLS_RX); 608c7bb0f47SJohn Baldwin #endif 609b9cbc85dSRick Macklem return (ctx); 610b9cbc85dSRick Macklem } 611b9cbc85dSRick Macklem 612b9cbc85dSRick Macklem static SSL * 613b9cbc85dSRick Macklem rpctls_connect(SSL_CTX *ctx, int s, char *certname, u_int certlen, X509 **certp) 614b9cbc85dSRick Macklem { 615b9cbc85dSRick Macklem SSL *ssl; 616b9cbc85dSRick Macklem X509 *cert; 617b9cbc85dSRick Macklem struct sockaddr_storage ad; 618b9cbc85dSRick Macklem struct sockaddr *sad; 619b9cbc85dSRick Macklem char hostnam[NI_MAXHOST], path[PATH_MAX]; 620b9cbc85dSRick Macklem int gethostret, ret; 621b9cbc85dSRick Macklem char *cp, *cp2; 622b9cbc85dSRick Macklem size_t len, rlen; 623b9cbc85dSRick Macklem long verfret; 624b9cbc85dSRick Macklem 625b9cbc85dSRick Macklem *certp = NULL; 626b9cbc85dSRick Macklem sad = (struct sockaddr *)&ad; 627b9cbc85dSRick Macklem ssl = SSL_new(ctx); 628b9cbc85dSRick Macklem if (ssl == NULL) { 629b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: " 630b9cbc85dSRick Macklem "SSL_new failed\n"); 631b9cbc85dSRick Macklem return (NULL); 632b9cbc85dSRick Macklem } 633b9cbc85dSRick Macklem if (SSL_set_fd(ssl, s) != 1) { 634b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: " 635b9cbc85dSRick Macklem "SSL_set_fd failed\n"); 636b9cbc85dSRick Macklem SSL_free(ssl); 637b9cbc85dSRick Macklem return (NULL); 638b9cbc85dSRick Macklem } 639b9cbc85dSRick Macklem 640b9cbc85dSRick Macklem /* 641b9cbc85dSRick Macklem * If rpctls_cert is true and certname is set, a alternate certificate 642b9cbc85dSRick Macklem * and key exists in files named <certname>.pem and <certname>key.pem 643b9cbc85dSRick Macklem * in rpctls_certdir that is to be used for mutual authentication. 644b9cbc85dSRick Macklem */ 645b9cbc85dSRick Macklem if (rpctls_cert && certlen > 0) { 646b9cbc85dSRick Macklem len = strlcpy(path, rpctls_certdir, sizeof(path)); 647b9cbc85dSRick Macklem rlen = sizeof(path) - len; 648b9cbc85dSRick Macklem if (rlen <= certlen) { 649b9cbc85dSRick Macklem SSL_free(ssl); 650b9cbc85dSRick Macklem return (NULL); 651b9cbc85dSRick Macklem } 652b9cbc85dSRick Macklem memcpy(&path[len], certname, certlen); 653b9cbc85dSRick Macklem rlen -= certlen; 654b9cbc85dSRick Macklem len += certlen; 655b9cbc85dSRick Macklem path[len] = '\0'; 656b9cbc85dSRick Macklem if (strlcpy(&path[len], ".pem", rlen) != 4) { 657b9cbc85dSRick Macklem SSL_free(ssl); 658b9cbc85dSRick Macklem return (NULL); 659b9cbc85dSRick Macklem } 660b9cbc85dSRick Macklem ret = SSL_use_certificate_file(ssl, path, SSL_FILETYPE_PEM); 661b9cbc85dSRick Macklem if (ret != 1) { 662b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: can't use " 663b9cbc85dSRick Macklem "certificate file path=%s ret=%d\n", path, ret); 664b9cbc85dSRick Macklem SSL_free(ssl); 665b9cbc85dSRick Macklem return (NULL); 666b9cbc85dSRick Macklem } 667b9cbc85dSRick Macklem if (strlcpy(&path[len], "key.pem", rlen) != 7) { 668b9cbc85dSRick Macklem SSL_free(ssl); 669b9cbc85dSRick Macklem return (NULL); 670b9cbc85dSRick Macklem } 671b9cbc85dSRick Macklem ret = SSL_use_PrivateKey_file(ssl, path, SSL_FILETYPE_PEM); 672b9cbc85dSRick Macklem if (ret != 1) { 673b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: Can't use " 674b9cbc85dSRick Macklem "private key path=%s ret=%d\n", path, ret); 675b9cbc85dSRick Macklem SSL_free(ssl); 676b9cbc85dSRick Macklem return (NULL); 677b9cbc85dSRick Macklem } 678b9cbc85dSRick Macklem } 679b9cbc85dSRick Macklem 680b9cbc85dSRick Macklem ret = SSL_connect(ssl); 681b9cbc85dSRick Macklem if (ret != 1) { 682b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: " 683b9cbc85dSRick Macklem "SSL_connect failed %d\n", 684b9cbc85dSRick Macklem ret); 685b9cbc85dSRick Macklem SSL_free(ssl); 686b9cbc85dSRick Macklem return (NULL); 687b9cbc85dSRick Macklem } 688b9cbc85dSRick Macklem 689b9cbc85dSRick Macklem cert = SSL_get_peer_certificate(ssl); 690b9cbc85dSRick Macklem if (cert == NULL) { 691b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: get peer" 692b9cbc85dSRick Macklem " certificate failed\n"); 693b9cbc85dSRick Macklem SSL_free(ssl); 694b9cbc85dSRick Macklem return (NULL); 695b9cbc85dSRick Macklem } 696b9cbc85dSRick Macklem gethostret = rpctls_gethost(s, sad, hostnam, sizeof(hostnam)); 697b9cbc85dSRick Macklem if (gethostret == 0) 698b9cbc85dSRick Macklem hostnam[0] = '\0'; 699b9cbc85dSRick Macklem verfret = SSL_get_verify_result(ssl); 700b9cbc85dSRick Macklem if (verfret == X509_V_OK && (rpctls_verify_cafile != NULL || 701b9cbc85dSRick Macklem rpctls_verify_capath != NULL) && (gethostret == 0 || 702b9cbc85dSRick Macklem rpctls_checkhost(sad, cert, X509_CHECK_FLAG_NO_WILDCARDS) != 1)) 703b9cbc85dSRick Macklem verfret = X509_V_ERR_HOSTNAME_MISMATCH; 704b9cbc85dSRick Macklem if (verfret != X509_V_OK && (rpctls_verify_cafile != NULL || 705b9cbc85dSRick Macklem rpctls_verify_capath != NULL)) { 706b9cbc85dSRick Macklem if (verfret != X509_V_OK) { 707b9cbc85dSRick Macklem cp = X509_NAME_oneline(X509_get_issuer_name(cert), 708b9cbc85dSRick Macklem NULL, 0); 709b9cbc85dSRick Macklem cp2 = X509_NAME_oneline(X509_get_subject_name(cert), 710b9cbc85dSRick Macklem NULL, 0); 711b9cbc85dSRick Macklem if (rpctls_debug_level == 0) 712b9cbc85dSRick Macklem syslog(LOG_INFO | LOG_DAEMON, 713b9cbc85dSRick Macklem "rpctls_connect: client IP %s " 714b9cbc85dSRick Macklem "issuerName=%s subjectName=%s verify " 715b9cbc85dSRick Macklem "failed %s\n", hostnam, cp, cp2, 716b9cbc85dSRick Macklem X509_verify_cert_error_string(verfret)); 717b9cbc85dSRick Macklem else 718b9cbc85dSRick Macklem fprintf(stderr, 719b9cbc85dSRick Macklem "rpctls_connect: client IP %s " 720b9cbc85dSRick Macklem "issuerName=%s subjectName=%s verify " 721b9cbc85dSRick Macklem "failed %s\n", hostnam, cp, cp2, 722b9cbc85dSRick Macklem X509_verify_cert_error_string(verfret)); 723b9cbc85dSRick Macklem } 724b9cbc85dSRick Macklem X509_free(cert); 725b9cbc85dSRick Macklem SSL_free(ssl); 726b9cbc85dSRick Macklem return (NULL); 727b9cbc85dSRick Macklem } 728b9cbc85dSRick Macklem 729b9cbc85dSRick Macklem /* Check to see if ktls is enabled on the connection. */ 730b9cbc85dSRick Macklem ret = BIO_get_ktls_send(SSL_get_wbio(ssl)); 731b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: BIO_get_ktls_send=%d\n", ret); 732b9cbc85dSRick Macklem if (ret != 0) { 733b9cbc85dSRick Macklem ret = BIO_get_ktls_recv(SSL_get_rbio(ssl)); 734b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: BIO_get_ktls_recv=%d\n", 735b9cbc85dSRick Macklem ret); 736b9cbc85dSRick Macklem } 737b9cbc85dSRick Macklem if (ret == 0) { 738b9cbc85dSRick Macklem if (rpctls_debug_level == 0) 739b9cbc85dSRick Macklem syslog(LOG_ERR, "ktls not working\n"); 740b9cbc85dSRick Macklem else 741b9cbc85dSRick Macklem fprintf(stderr, "ktls not working\n"); 742b9cbc85dSRick Macklem X509_free(cert); 743b9cbc85dSRick Macklem SSL_free(ssl); 744b9cbc85dSRick Macklem return (NULL); 745b9cbc85dSRick Macklem } 746b9cbc85dSRick Macklem if (ret == X509_V_OK && (rpctls_verify_cafile != NULL || 747b9cbc85dSRick Macklem rpctls_verify_capath != NULL) && rpctls_crlfile != NULL) 748b9cbc85dSRick Macklem *certp = cert; 749b9cbc85dSRick Macklem else 750b9cbc85dSRick Macklem X509_free(cert); 751b9cbc85dSRick Macklem 752b9cbc85dSRick Macklem return (ssl); 753b9cbc85dSRick Macklem } 754b9cbc85dSRick Macklem 755b9cbc85dSRick Macklem static void 756b9cbc85dSRick Macklem rpctls_huphandler(int sig __unused) 757b9cbc85dSRick Macklem { 758b9cbc85dSRick Macklem 759b9cbc85dSRick Macklem rpctls_gothup = true; 760b9cbc85dSRick Macklem } 761