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; 99b9cbc85dSRick Macklem 100b9cbc85dSRick Macklem static void rpctlscd_terminate(int); 101b9cbc85dSRick Macklem static SSL_CTX *rpctls_setupcl_ssl(void); 102b9cbc85dSRick Macklem static SSL *rpctls_connect(SSL_CTX *ctx, int s, char *certname, 103b9cbc85dSRick Macklem u_int certlen, X509 **certp); 104b9cbc85dSRick Macklem static void rpctls_huphandler(int sig __unused); 105b9cbc85dSRick Macklem 106b9cbc85dSRick Macklem extern void rpctlscd_1(struct svc_req *rqstp, SVCXPRT *transp); 107b9cbc85dSRick Macklem 108b9cbc85dSRick Macklem static struct option longopts[] = { 109b9cbc85dSRick Macklem { "certdir", required_argument, NULL, 'D' }, 110b9cbc85dSRick Macklem { "ciphers", required_argument, NULL, 'C' }, 111b9cbc85dSRick Macklem { "debuglevel", no_argument, NULL, 'd' }, 112b9cbc85dSRick Macklem { "verifylocs", required_argument, NULL, 'l' }, 113b9cbc85dSRick Macklem { "mutualverf", no_argument, NULL, 'm' }, 114b9cbc85dSRick Macklem { "verifydir", required_argument, NULL, 'p' }, 115b9cbc85dSRick Macklem { "crl", required_argument, NULL, 'r' }, 116b9cbc85dSRick Macklem { "verbose", no_argument, NULL, 'v' }, 117b9cbc85dSRick Macklem { NULL, 0, NULL, 0 } 118b9cbc85dSRick Macklem }; 119b9cbc85dSRick Macklem 120b9cbc85dSRick Macklem int 121b9cbc85dSRick Macklem main(int argc, char **argv) 122b9cbc85dSRick Macklem { 123b9cbc85dSRick Macklem /* 124b9cbc85dSRick Macklem * We provide an RPC service on a local-domain socket. The 125b9cbc85dSRick Macklem * kernel rpctls code will upcall to this daemon to do the initial 126b9cbc85dSRick Macklem * TLS handshake. 127b9cbc85dSRick Macklem */ 128b9cbc85dSRick Macklem struct sockaddr_un sun; 129b9cbc85dSRick Macklem int ch, fd, oldmask; 130b9cbc85dSRick Macklem SVCXPRT *xprt; 131b9cbc85dSRick Macklem bool tls_enable; 132b9cbc85dSRick Macklem struct timeval tm; 133b9cbc85dSRick Macklem struct timezone tz; 134b9cbc85dSRick Macklem pid_t otherpid; 135b9cbc85dSRick Macklem size_t tls_enable_len; 136b9cbc85dSRick Macklem 137b9cbc85dSRick Macklem /* Check that another rpctlscd isn't already running. */ 138b9cbc85dSRick Macklem rpctls_pfh = pidfile_open(_PATH_RPCTLSCDPID, 0600, &otherpid); 139b9cbc85dSRick Macklem if (rpctls_pfh == NULL) { 140b9cbc85dSRick Macklem if (errno == EEXIST) 141b9cbc85dSRick Macklem errx(1, "rpctlscd already running, pid: %d.", otherpid); 142b9cbc85dSRick Macklem warn("cannot open or create pidfile"); 143b9cbc85dSRick Macklem } 144b9cbc85dSRick Macklem 145b9cbc85dSRick Macklem /* Check to see that the ktls is enabled. */ 146b9cbc85dSRick Macklem tls_enable_len = sizeof(tls_enable); 147b9cbc85dSRick Macklem if (sysctlbyname("kern.ipc.tls.enable", &tls_enable, &tls_enable_len, 148b9cbc85dSRick Macklem NULL, 0) != 0 || !tls_enable) 149b9cbc85dSRick Macklem errx(1, "Kernel TLS not enabled"); 150b9cbc85dSRick Macklem 151b9cbc85dSRick Macklem /* Get the time when this daemon is started. */ 152b9cbc85dSRick Macklem gettimeofday(&tm, &tz); 153b9cbc85dSRick Macklem rpctls_ssl_sec = tm.tv_sec; 154b9cbc85dSRick Macklem rpctls_ssl_usec = tm.tv_usec; 155b9cbc85dSRick Macklem 156b9cbc85dSRick Macklem rpctls_verbose = false; 157b9cbc85dSRick Macklem while ((ch = getopt_long(argc, argv, "CD:dl:mp:r:v", longopts, NULL)) != 158b9cbc85dSRick Macklem -1) { 159b9cbc85dSRick Macklem switch (ch) { 160b9cbc85dSRick Macklem case 'C': 161b9cbc85dSRick Macklem rpctls_ciphers = optarg; 162b9cbc85dSRick Macklem break; 163b9cbc85dSRick Macklem case 'D': 164b9cbc85dSRick Macklem rpctls_certdir = optarg; 165b9cbc85dSRick Macklem break; 166b9cbc85dSRick Macklem case 'd': 167b9cbc85dSRick Macklem rpctls_debug_level++; 168b9cbc85dSRick Macklem break; 169b9cbc85dSRick Macklem case 'l': 170b9cbc85dSRick Macklem rpctls_verify_cafile = optarg; 171b9cbc85dSRick Macklem break; 172b9cbc85dSRick Macklem case 'm': 173b9cbc85dSRick Macklem rpctls_cert = true; 174b9cbc85dSRick Macklem break; 175b9cbc85dSRick Macklem case 'p': 176b9cbc85dSRick Macklem rpctls_verify_capath = optarg; 177b9cbc85dSRick Macklem break; 178b9cbc85dSRick Macklem case 'r': 179b9cbc85dSRick Macklem rpctls_crlfile = optarg; 180b9cbc85dSRick Macklem break; 181b9cbc85dSRick Macklem case 'v': 182b9cbc85dSRick Macklem rpctls_verbose = true; 183b9cbc85dSRick Macklem break; 184b9cbc85dSRick Macklem default: 185b9cbc85dSRick Macklem fprintf(stderr, "usage: %s " 186b9cbc85dSRick Macklem "[-C/--ciphers preferred_ciphers] " 187b9cbc85dSRick Macklem "[-D/--certdir certdir] [-d/--debuglevel] " 188b9cbc85dSRick Macklem "[-l/--verifylocs CAfile] [-m/--mutualverf] " 189b9cbc85dSRick Macklem "[-p/--verifydir CApath] [-r/--crl CRLfile] " 190b9cbc85dSRick Macklem "[-v/--verbose]\n", argv[0]); 191b9cbc85dSRick Macklem exit(1); 192b9cbc85dSRick Macklem break; 193b9cbc85dSRick Macklem } 194b9cbc85dSRick Macklem } 195b9cbc85dSRick Macklem if (rpctls_crlfile != NULL && rpctls_verify_cafile == NULL && 196b9cbc85dSRick Macklem rpctls_verify_capath == NULL) 197b9cbc85dSRick Macklem errx(1, "-r requires the -l <CAfile> and/or " 198b9cbc85dSRick Macklem "-p <CApath> options"); 199b9cbc85dSRick Macklem 200b9cbc85dSRick Macklem if (modfind("krpc") < 0) { 201b9cbc85dSRick Macklem /* Not present in kernel, try loading it */ 202b9cbc85dSRick Macklem if (kldload("krpc") < 0 || modfind("krpc") < 0) 203b9cbc85dSRick Macklem errx(1, "Kernel RPC is not available"); 204b9cbc85dSRick Macklem } 205b9cbc85dSRick Macklem 206b9cbc85dSRick Macklem /* 207b9cbc85dSRick Macklem * Set up the SSL_CTX *. 208b9cbc85dSRick Macklem * Do it now, before daemonizing, in case the private key 209b9cbc85dSRick Macklem * is encrypted and requires a passphrase to be entered. 210b9cbc85dSRick Macklem */ 211b9cbc85dSRick Macklem rpctls_ctx = rpctls_setupcl_ssl(); 212b9cbc85dSRick Macklem if (rpctls_ctx == NULL) { 213b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 214b9cbc85dSRick Macklem syslog(LOG_ERR, "Can't set up TLS context"); 215b9cbc85dSRick Macklem exit(1); 216b9cbc85dSRick Macklem } 217b9cbc85dSRick Macklem err(1, "Can't set up TLS context"); 218b9cbc85dSRick Macklem } 219b9cbc85dSRick Macklem LIST_INIT(&rpctls_ssllist); 220b9cbc85dSRick Macklem 221b9cbc85dSRick Macklem if (!rpctls_debug_level) { 222b9cbc85dSRick Macklem if (daemon(0, 0) != 0) 223b9cbc85dSRick Macklem err(1, "Can't daemonize"); 224b9cbc85dSRick Macklem signal(SIGINT, SIG_IGN); 225b9cbc85dSRick Macklem signal(SIGQUIT, SIG_IGN); 226b9cbc85dSRick Macklem signal(SIGHUP, SIG_IGN); 227b9cbc85dSRick Macklem } 228b9cbc85dSRick Macklem signal(SIGTERM, rpctlscd_terminate); 229b9cbc85dSRick Macklem signal(SIGPIPE, SIG_IGN); 230b9cbc85dSRick Macklem signal(SIGHUP, rpctls_huphandler); 231b9cbc85dSRick Macklem 232b9cbc85dSRick Macklem pidfile_write(rpctls_pfh); 233b9cbc85dSRick Macklem 234b9cbc85dSRick Macklem memset(&sun, 0, sizeof sun); 235b9cbc85dSRick Macklem sun.sun_family = AF_LOCAL; 236b9cbc85dSRick Macklem unlink(_PATH_RPCTLSCDSOCK); 237b9cbc85dSRick Macklem strcpy(sun.sun_path, _PATH_RPCTLSCDSOCK); 238b9cbc85dSRick Macklem sun.sun_len = SUN_LEN(&sun); 239b9cbc85dSRick Macklem fd = socket(AF_LOCAL, SOCK_STREAM, 0); 240b9cbc85dSRick Macklem if (fd < 0) { 241b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 242b9cbc85dSRick Macklem syslog(LOG_ERR, "Can't create local rpctlscd socket"); 243b9cbc85dSRick Macklem exit(1); 244b9cbc85dSRick Macklem } 245b9cbc85dSRick Macklem err(1, "Can't create local rpctlscd socket"); 246b9cbc85dSRick Macklem } 247b9cbc85dSRick Macklem oldmask = umask(S_IXUSR|S_IRWXG|S_IRWXO); 248b9cbc85dSRick Macklem if (bind(fd, (struct sockaddr *)&sun, sun.sun_len) < 0) { 249b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 250b9cbc85dSRick Macklem syslog(LOG_ERR, "Can't bind local rpctlscd socket"); 251b9cbc85dSRick Macklem exit(1); 252b9cbc85dSRick Macklem } 253b9cbc85dSRick Macklem err(1, "Can't bind local rpctlscd socket"); 254b9cbc85dSRick Macklem } 255b9cbc85dSRick Macklem umask(oldmask); 256b9cbc85dSRick Macklem if (listen(fd, SOMAXCONN) < 0) { 257b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 258b9cbc85dSRick Macklem syslog(LOG_ERR, 259b9cbc85dSRick Macklem "Can't listen on local rpctlscd socket"); 260b9cbc85dSRick Macklem exit(1); 261b9cbc85dSRick Macklem } 262b9cbc85dSRick Macklem err(1, "Can't listen on local rpctlscd socket"); 263b9cbc85dSRick Macklem } 264b9cbc85dSRick Macklem xprt = svc_vc_create(fd, RPC_MAXDATASIZE, RPC_MAXDATASIZE); 265b9cbc85dSRick Macklem if (!xprt) { 266b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 267b9cbc85dSRick Macklem syslog(LOG_ERR, 268b9cbc85dSRick Macklem "Can't create transport for local rpctlscd socket"); 269b9cbc85dSRick Macklem exit(1); 270b9cbc85dSRick Macklem } 271b9cbc85dSRick Macklem err(1, "Can't create transport for local rpctlscd socket"); 272b9cbc85dSRick Macklem } 273b9cbc85dSRick Macklem if (!svc_reg(xprt, RPCTLSCD, RPCTLSCDVERS, rpctlscd_1, NULL)) { 274b9cbc85dSRick Macklem if (rpctls_debug_level == 0) { 275b9cbc85dSRick Macklem syslog(LOG_ERR, 276b9cbc85dSRick Macklem "Can't register service for local rpctlscd socket"); 277b9cbc85dSRick Macklem exit(1); 278b9cbc85dSRick Macklem } 279b9cbc85dSRick Macklem err(1, "Can't register service for local rpctlscd socket"); 280b9cbc85dSRick Macklem } 281b9cbc85dSRick Macklem 282b9cbc85dSRick Macklem rpctls_syscall(RPCTLS_SYSC_CLSETPATH, _PATH_RPCTLSCDSOCK); 283b9cbc85dSRick Macklem 284b9cbc85dSRick Macklem rpctls_svc_run(); 285b9cbc85dSRick Macklem 286b9cbc85dSRick Macklem rpctls_syscall(RPCTLS_SYSC_CLSHUTDOWN, ""); 287b9cbc85dSRick Macklem 288b9cbc85dSRick Macklem SSL_CTX_free(rpctls_ctx); 289b9cbc85dSRick Macklem EVP_cleanup(); 290b9cbc85dSRick Macklem return (0); 291b9cbc85dSRick Macklem } 292b9cbc85dSRick Macklem 293b9cbc85dSRick Macklem bool_t 294b9cbc85dSRick Macklem rpctlscd_null_1_svc(__unused void *argp, __unused void *result, 295b9cbc85dSRick Macklem __unused struct svc_req *rqstp) 296b9cbc85dSRick Macklem { 297b9cbc85dSRick Macklem 298b9cbc85dSRick Macklem rpctls_verbose_out("rpctlscd_null: done\n"); 299b9cbc85dSRick Macklem return (TRUE); 300b9cbc85dSRick Macklem } 301b9cbc85dSRick Macklem 302b9cbc85dSRick Macklem bool_t 303b9cbc85dSRick Macklem rpctlscd_connect_1_svc(struct rpctlscd_connect_arg *argp, 304b9cbc85dSRick Macklem struct rpctlscd_connect_res *result, __unused struct svc_req *rqstp) 305b9cbc85dSRick Macklem { 306b9cbc85dSRick Macklem int s; 307b9cbc85dSRick Macklem SSL *ssl; 308b9cbc85dSRick Macklem struct ssl_entry *newslp; 309b9cbc85dSRick Macklem X509 *cert; 310b9cbc85dSRick Macklem 311b9cbc85dSRick Macklem rpctls_verbose_out("rpctlsd_connect: started\n"); 312b9cbc85dSRick Macklem /* Get the socket fd from the kernel. */ 313b9cbc85dSRick Macklem s = rpctls_syscall(RPCTLS_SYSC_CLSOCKET, ""); 314b9cbc85dSRick Macklem if (s < 0) { 315b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOSOCKET; 316b9cbc85dSRick Macklem return (TRUE); 317b9cbc85dSRick Macklem } 318b9cbc85dSRick Macklem 319b9cbc85dSRick Macklem /* Do a TLS connect handshake. */ 320b9cbc85dSRick Macklem ssl = rpctls_connect(rpctls_ctx, s, argp->certname.certname_val, 321b9cbc85dSRick Macklem argp->certname.certname_len, &cert); 322b9cbc85dSRick Macklem if (ssl == NULL) { 323b9cbc85dSRick Macklem rpctls_verbose_out("rpctlsd_connect: can't do TLS " 324b9cbc85dSRick Macklem "handshake\n"); 325b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOSSL; 326b9cbc85dSRick Macklem } else { 327b9cbc85dSRick Macklem result->reterr = RPCTLSERR_OK; 328b9cbc85dSRick Macklem result->sec = rpctls_ssl_sec; 329b9cbc85dSRick Macklem result->usec = rpctls_ssl_usec; 330b9cbc85dSRick Macklem result->ssl = ++rpctls_ssl_refno; 331b9cbc85dSRick Macklem /* Hard to believe this will ever wrap around.. */ 332b9cbc85dSRick Macklem if (rpctls_ssl_refno == 0) 333b9cbc85dSRick Macklem result->ssl = ++rpctls_ssl_refno; 334b9cbc85dSRick Macklem } 335b9cbc85dSRick Macklem 336b9cbc85dSRick Macklem if (ssl == NULL) { 337b9cbc85dSRick Macklem /* 338b9cbc85dSRick Macklem * For RPC-over-TLS, this upcall is expected 339b9cbc85dSRick Macklem * to close off the socket. 340b9cbc85dSRick Macklem */ 341b9cbc85dSRick Macklem close(s); 342b9cbc85dSRick Macklem return (TRUE); 343b9cbc85dSRick Macklem } 344b9cbc85dSRick Macklem 345b9cbc85dSRick Macklem /* Maintain list of all current SSL *'s */ 346b9cbc85dSRick Macklem newslp = malloc(sizeof(*newslp)); 347b9cbc85dSRick Macklem newslp->refno = rpctls_ssl_refno; 348b9cbc85dSRick Macklem newslp->s = s; 349b9cbc85dSRick Macklem newslp->shutoff = false; 350b9cbc85dSRick Macklem newslp->ssl = ssl; 351b9cbc85dSRick Macklem newslp->cert = cert; 352b9cbc85dSRick Macklem LIST_INSERT_HEAD(&rpctls_ssllist, newslp, next); 353b9cbc85dSRick Macklem return (TRUE); 354b9cbc85dSRick Macklem } 355b9cbc85dSRick Macklem 356b9cbc85dSRick Macklem bool_t 357b9cbc85dSRick Macklem rpctlscd_handlerecord_1_svc(struct rpctlscd_handlerecord_arg *argp, 358b9cbc85dSRick Macklem struct rpctlscd_handlerecord_res *result, __unused struct svc_req *rqstp) 359b9cbc85dSRick Macklem { 360b9cbc85dSRick Macklem struct ssl_entry *slp; 361b9cbc85dSRick Macklem int ret; 362b9cbc85dSRick Macklem char junk; 363b9cbc85dSRick Macklem 364b9cbc85dSRick Macklem slp = NULL; 365b9cbc85dSRick Macklem if (argp->sec == rpctls_ssl_sec && argp->usec == 366b9cbc85dSRick Macklem rpctls_ssl_usec) { 367b9cbc85dSRick Macklem LIST_FOREACH(slp, &rpctls_ssllist, next) { 368b9cbc85dSRick Macklem if (slp->refno == argp->ssl) 369b9cbc85dSRick Macklem break; 370b9cbc85dSRick Macklem } 371b9cbc85dSRick Macklem } 372b9cbc85dSRick Macklem 373b9cbc85dSRick Macklem if (slp != NULL) { 374b9cbc85dSRick Macklem rpctls_verbose_out("rpctlscd_handlerecord fd=%d\n", 375b9cbc85dSRick Macklem slp->s); 376b9cbc85dSRick Macklem /* 377b9cbc85dSRick Macklem * An SSL_read() of 0 bytes should fail, but it should 378b9cbc85dSRick Macklem * handle the non-application data record before doing so. 379b9cbc85dSRick Macklem */ 380b9cbc85dSRick Macklem ret = SSL_read(slp->ssl, &junk, 0); 381b9cbc85dSRick Macklem if (ret <= 0) { 382b9cbc85dSRick Macklem /* Check to see if this was a close alert. */ 383b9cbc85dSRick Macklem ret = SSL_get_shutdown(slp->ssl); 384b9cbc85dSRick Macklem if ((ret & (SSL_SENT_SHUTDOWN | 385b9cbc85dSRick Macklem SSL_RECEIVED_SHUTDOWN)) == SSL_RECEIVED_SHUTDOWN) 386b9cbc85dSRick Macklem SSL_shutdown(slp->ssl); 387b9cbc85dSRick Macklem } else { 388b9cbc85dSRick Macklem if (rpctls_debug_level == 0) 389b9cbc85dSRick Macklem syslog(LOG_ERR, "SSL_read returned %d", ret); 390b9cbc85dSRick Macklem else 391b9cbc85dSRick Macklem fprintf(stderr, "SSL_read returned %d\n", ret); 392b9cbc85dSRick Macklem } 393b9cbc85dSRick Macklem result->reterr = RPCTLSERR_OK; 394b9cbc85dSRick Macklem } else 395b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOSSL; 396b9cbc85dSRick Macklem return (TRUE); 397b9cbc85dSRick Macklem } 398b9cbc85dSRick Macklem 399b9cbc85dSRick Macklem bool_t 400b9cbc85dSRick Macklem rpctlscd_disconnect_1_svc(struct rpctlscd_disconnect_arg *argp, 401b9cbc85dSRick Macklem struct rpctlscd_disconnect_res *result, __unused struct svc_req *rqstp) 402b9cbc85dSRick Macklem { 403b9cbc85dSRick Macklem struct ssl_entry *slp; 404b9cbc85dSRick Macklem int ret; 405b9cbc85dSRick Macklem 406b9cbc85dSRick Macklem slp = NULL; 407b9cbc85dSRick Macklem if (argp->sec == rpctls_ssl_sec && argp->usec == 408b9cbc85dSRick Macklem rpctls_ssl_usec) { 409b9cbc85dSRick Macklem LIST_FOREACH(slp, &rpctls_ssllist, next) { 410b9cbc85dSRick Macklem if (slp->refno == argp->ssl) 411b9cbc85dSRick Macklem break; 412b9cbc85dSRick Macklem } 413b9cbc85dSRick Macklem } 414b9cbc85dSRick Macklem 415b9cbc85dSRick Macklem if (slp != NULL) { 416b9cbc85dSRick Macklem rpctls_verbose_out("rpctlscd_disconnect: fd=%d closed\n", 417b9cbc85dSRick Macklem slp->s); 418b9cbc85dSRick Macklem LIST_REMOVE(slp, next); 419b9cbc85dSRick Macklem if (!slp->shutoff) { 420b9cbc85dSRick Macklem ret = SSL_get_shutdown(slp->ssl); 421b9cbc85dSRick Macklem /* 422b9cbc85dSRick Macklem * Do an SSL_shutdown() unless a close alert has 423b9cbc85dSRick Macklem * already been sent. 424b9cbc85dSRick Macklem */ 425b9cbc85dSRick Macklem if ((ret & SSL_SENT_SHUTDOWN) == 0) 426b9cbc85dSRick Macklem SSL_shutdown(slp->ssl); 427b9cbc85dSRick Macklem } 428b9cbc85dSRick Macklem SSL_free(slp->ssl); 429b9cbc85dSRick Macklem if (slp->cert != NULL) 430b9cbc85dSRick Macklem X509_free(slp->cert); 431b9cbc85dSRick Macklem /* 432b9cbc85dSRick Macklem * For RPC-over-TLS, this upcall is expected 433b9cbc85dSRick Macklem * to close off the socket. 434b9cbc85dSRick Macklem */ 435b9cbc85dSRick Macklem if (!slp->shutoff) 436b9cbc85dSRick Macklem shutdown(slp->s, SHUT_WR); 437b9cbc85dSRick Macklem close(slp->s); 438b9cbc85dSRick Macklem free(slp); 439b9cbc85dSRick Macklem result->reterr = RPCTLSERR_OK; 440b9cbc85dSRick Macklem } else 441b9cbc85dSRick Macklem result->reterr = RPCTLSERR_NOCLOSE; 442b9cbc85dSRick Macklem return (TRUE); 443b9cbc85dSRick Macklem } 444b9cbc85dSRick Macklem 445b9cbc85dSRick Macklem int 446b9cbc85dSRick Macklem rpctlscd_1_freeresult(__unused SVCXPRT *transp, __unused xdrproc_t xdr_result, 447b9cbc85dSRick Macklem __unused caddr_t result) 448b9cbc85dSRick Macklem { 449b9cbc85dSRick Macklem 450b9cbc85dSRick Macklem return (TRUE); 451b9cbc85dSRick Macklem } 452b9cbc85dSRick Macklem 453b9cbc85dSRick Macklem static void 454b9cbc85dSRick Macklem rpctlscd_terminate(int sig __unused) 455b9cbc85dSRick Macklem { 456b9cbc85dSRick Macklem 457b9cbc85dSRick Macklem rpctls_syscall(RPCTLS_SYSC_CLSHUTDOWN, ""); 458b9cbc85dSRick Macklem pidfile_remove(rpctls_pfh); 459b9cbc85dSRick Macklem exit(0); 460b9cbc85dSRick Macklem } 461b9cbc85dSRick Macklem 462b9cbc85dSRick Macklem static SSL_CTX * 463b9cbc85dSRick Macklem rpctls_setupcl_ssl(void) 464b9cbc85dSRick Macklem { 465b9cbc85dSRick Macklem SSL_CTX *ctx; 466b9cbc85dSRick Macklem long flags; 467b9cbc85dSRick Macklem char path[PATH_MAX]; 468b9cbc85dSRick Macklem size_t len, rlen; 469b9cbc85dSRick Macklem int ret; 470b9cbc85dSRick Macklem 471b9cbc85dSRick Macklem SSL_library_init(); 472b9cbc85dSRick Macklem SSL_load_error_strings(); 473b9cbc85dSRick Macklem OpenSSL_add_all_algorithms(); 474b9cbc85dSRick Macklem 475b9cbc85dSRick Macklem ctx = SSL_CTX_new(TLS_client_method()); 476b9cbc85dSRick Macklem if (ctx == NULL) { 477b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: SSL_CTX_new " 478b9cbc85dSRick Macklem "failed\n"); 479b9cbc85dSRick Macklem return (NULL); 480b9cbc85dSRick Macklem } 481b9cbc85dSRick Macklem SSL_CTX_set_ecdh_auto(ctx, 1); 482b9cbc85dSRick Macklem 483b9cbc85dSRick Macklem if (rpctls_ciphers != NULL) { 484b9cbc85dSRick Macklem /* 485b9cbc85dSRick Macklem * Set preferred ciphers, since KERN_TLS only supports a 486b9cbc85dSRick Macklem * few of them. 487b9cbc85dSRick Macklem */ 488b9cbc85dSRick Macklem ret = SSL_CTX_set_cipher_list(ctx, rpctls_ciphers); 489b9cbc85dSRick Macklem if (ret == 0) { 490b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 491b9cbc85dSRick Macklem "SSL_CTX_set_cipher_list failed: %s\n", 492b9cbc85dSRick Macklem rpctls_ciphers); 493b9cbc85dSRick Macklem SSL_CTX_free(ctx); 494b9cbc85dSRick Macklem return (NULL); 495b9cbc85dSRick Macklem } 496b9cbc85dSRick Macklem } 497b9cbc85dSRick Macklem 498b9cbc85dSRick Macklem /* 499b9cbc85dSRick Macklem * If rpctls_cert is true, a certificate and key exists in 500b9cbc85dSRick Macklem * rpctls_certdir, so that it can do mutual authentication. 501b9cbc85dSRick Macklem */ 502b9cbc85dSRick Macklem if (rpctls_cert) { 503b9cbc85dSRick Macklem /* Get the cert.pem and certkey.pem files. */ 504b9cbc85dSRick Macklem len = strlcpy(path, rpctls_certdir, sizeof(path)); 505b9cbc85dSRick Macklem rlen = sizeof(path) - len; 506b9cbc85dSRick Macklem if (strlcpy(&path[len], "cert.pem", rlen) != 8) { 507b9cbc85dSRick Macklem SSL_CTX_free(ctx); 508b9cbc85dSRick Macklem return (NULL); 509b9cbc85dSRick Macklem } 510b9cbc85dSRick Macklem ret = SSL_CTX_use_certificate_file(ctx, path, 511b9cbc85dSRick Macklem SSL_FILETYPE_PEM); 512b9cbc85dSRick Macklem if (ret != 1) { 513b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: can't use " 514b9cbc85dSRick Macklem "certificate file path=%s ret=%d\n", path, ret); 515b9cbc85dSRick Macklem SSL_CTX_free(ctx); 516b9cbc85dSRick Macklem return (NULL); 517b9cbc85dSRick Macklem } 518b9cbc85dSRick Macklem if (strlcpy(&path[len], "certkey.pem", rlen) != 11) { 519b9cbc85dSRick Macklem SSL_CTX_free(ctx); 520b9cbc85dSRick Macklem return (NULL); 521b9cbc85dSRick Macklem } 522b9cbc85dSRick Macklem ret = SSL_CTX_use_PrivateKey_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 "private key path=%s ret=%d\n", path, ret); 527b9cbc85dSRick Macklem SSL_CTX_free(ctx); 528b9cbc85dSRick Macklem return (NULL); 529b9cbc85dSRick Macklem } 530b9cbc85dSRick Macklem } 531b9cbc85dSRick Macklem 532b9cbc85dSRick Macklem if (rpctls_verify_cafile != NULL || rpctls_verify_capath != NULL) { 533b9cbc85dSRick Macklem if (rpctls_crlfile != NULL) { 534b9cbc85dSRick Macklem ret = rpctls_loadcrlfile(ctx); 535b9cbc85dSRick Macklem if (ret == 0) { 536b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 537b9cbc85dSRick Macklem "Load CRLfile failed\n"); 538b9cbc85dSRick Macklem SSL_CTX_free(ctx); 539b9cbc85dSRick Macklem return (NULL); 540b9cbc85dSRick Macklem } 541b9cbc85dSRick Macklem } 542b9cbc85dSRick Macklem #if OPENSSL_VERSION_NUMBER >= 0x30000000 543b9cbc85dSRick Macklem ret = 1; 544b9cbc85dSRick Macklem if (rpctls_verify_cafile != NULL) 545b9cbc85dSRick Macklem ret = SSL_CTX_load_verify_file(ctx, 546b9cbc85dSRick Macklem rpctls_verify_cafile); 547b9cbc85dSRick Macklem if (ret != 0 && rpctls_verify_capath != NULL) 548b9cbc85dSRick Macklem ret = SSL_CTX_load_verify_dir(ctx, 549b9cbc85dSRick Macklem rpctls_verify_capath); 550b9cbc85dSRick Macklem #else 551b9cbc85dSRick Macklem ret = SSL_CTX_load_verify_locations(ctx, 552b9cbc85dSRick Macklem rpctls_verify_cafile, rpctls_verify_capath); 553b9cbc85dSRick Macklem #endif 554b9cbc85dSRick Macklem if (ret == 0) { 555b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_setupcl_ssl: " 556b9cbc85dSRick Macklem "Can't load verify locations\n"); 557b9cbc85dSRick Macklem SSL_CTX_free(ctx); 558b9cbc85dSRick Macklem return (NULL); 559b9cbc85dSRick Macklem } 560b9cbc85dSRick Macklem /* 561b9cbc85dSRick Macklem * The man page says that the 562b9cbc85dSRick Macklem * SSL_CTX_set0_CA_list() call is not normally 563b9cbc85dSRick Macklem * needed, but I believe it is harmless. 564b9cbc85dSRick Macklem */ 565b9cbc85dSRick Macklem if (rpctls_verify_cafile != NULL) 566b9cbc85dSRick Macklem SSL_CTX_set0_CA_list(ctx, 567b9cbc85dSRick Macklem SSL_load_client_CA_file(rpctls_verify_cafile)); 568b9cbc85dSRick Macklem } 569b9cbc85dSRick Macklem 570b9cbc85dSRick Macklem /* RPC-over-TLS must use TLSv1.3, according to the IETF draft.*/ 571b9cbc85dSRick Macklem #ifdef notyet 572b9cbc85dSRick Macklem flags = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1 | 573b9cbc85dSRick Macklem SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2; 574b9cbc85dSRick Macklem #else 575b9cbc85dSRick Macklem flags = SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_TLSv1_3; 576b9cbc85dSRick Macklem #endif 577c7bb0f47SJohn Baldwin #ifdef SSL_OP_ENABLE_KTLS 578c7bb0f47SJohn Baldwin flags |= SSL_OP_ENABLE_KTLS; 579c7bb0f47SJohn Baldwin #endif 580b9cbc85dSRick Macklem SSL_CTX_set_options(ctx, flags); 581c7bb0f47SJohn Baldwin #ifdef SSL_MODE_NO_KTLS_TX 582b9cbc85dSRick Macklem SSL_CTX_clear_mode(ctx, SSL_MODE_NO_KTLS_TX | SSL_MODE_NO_KTLS_RX); 583c7bb0f47SJohn Baldwin #endif 584b9cbc85dSRick Macklem return (ctx); 585b9cbc85dSRick Macklem } 586b9cbc85dSRick Macklem 587b9cbc85dSRick Macklem static SSL * 588b9cbc85dSRick Macklem rpctls_connect(SSL_CTX *ctx, int s, char *certname, u_int certlen, X509 **certp) 589b9cbc85dSRick Macklem { 590b9cbc85dSRick Macklem SSL *ssl; 591b9cbc85dSRick Macklem X509 *cert; 592b9cbc85dSRick Macklem struct sockaddr_storage ad; 593b9cbc85dSRick Macklem struct sockaddr *sad; 594b9cbc85dSRick Macklem char hostnam[NI_MAXHOST], path[PATH_MAX]; 595b9cbc85dSRick Macklem int gethostret, ret; 596b9cbc85dSRick Macklem char *cp, *cp2; 597b9cbc85dSRick Macklem size_t len, rlen; 598b9cbc85dSRick Macklem long verfret; 599b9cbc85dSRick Macklem 600b9cbc85dSRick Macklem *certp = NULL; 601b9cbc85dSRick Macklem sad = (struct sockaddr *)&ad; 602b9cbc85dSRick Macklem ssl = SSL_new(ctx); 603b9cbc85dSRick Macklem if (ssl == NULL) { 604b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: " 605b9cbc85dSRick Macklem "SSL_new failed\n"); 606b9cbc85dSRick Macklem return (NULL); 607b9cbc85dSRick Macklem } 608b9cbc85dSRick Macklem if (SSL_set_fd(ssl, s) != 1) { 609b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: " 610b9cbc85dSRick Macklem "SSL_set_fd failed\n"); 611b9cbc85dSRick Macklem SSL_free(ssl); 612b9cbc85dSRick Macklem return (NULL); 613b9cbc85dSRick Macklem } 614b9cbc85dSRick Macklem 615b9cbc85dSRick Macklem /* 616b9cbc85dSRick Macklem * If rpctls_cert is true and certname is set, a alternate certificate 617b9cbc85dSRick Macklem * and key exists in files named <certname>.pem and <certname>key.pem 618b9cbc85dSRick Macklem * in rpctls_certdir that is to be used for mutual authentication. 619b9cbc85dSRick Macklem */ 620b9cbc85dSRick Macklem if (rpctls_cert && certlen > 0) { 621b9cbc85dSRick Macklem len = strlcpy(path, rpctls_certdir, sizeof(path)); 622b9cbc85dSRick Macklem rlen = sizeof(path) - len; 623b9cbc85dSRick Macklem if (rlen <= certlen) { 624b9cbc85dSRick Macklem SSL_free(ssl); 625b9cbc85dSRick Macklem return (NULL); 626b9cbc85dSRick Macklem } 627b9cbc85dSRick Macklem memcpy(&path[len], certname, certlen); 628b9cbc85dSRick Macklem rlen -= certlen; 629b9cbc85dSRick Macklem len += certlen; 630b9cbc85dSRick Macklem path[len] = '\0'; 631b9cbc85dSRick Macklem if (strlcpy(&path[len], ".pem", rlen) != 4) { 632b9cbc85dSRick Macklem SSL_free(ssl); 633b9cbc85dSRick Macklem return (NULL); 634b9cbc85dSRick Macklem } 635b9cbc85dSRick Macklem ret = SSL_use_certificate_file(ssl, path, SSL_FILETYPE_PEM); 636b9cbc85dSRick Macklem if (ret != 1) { 637b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: can't use " 638b9cbc85dSRick Macklem "certificate file path=%s ret=%d\n", path, ret); 639b9cbc85dSRick Macklem SSL_free(ssl); 640b9cbc85dSRick Macklem return (NULL); 641b9cbc85dSRick Macklem } 642b9cbc85dSRick Macklem if (strlcpy(&path[len], "key.pem", rlen) != 7) { 643b9cbc85dSRick Macklem SSL_free(ssl); 644b9cbc85dSRick Macklem return (NULL); 645b9cbc85dSRick Macklem } 646b9cbc85dSRick Macklem ret = SSL_use_PrivateKey_file(ssl, path, SSL_FILETYPE_PEM); 647b9cbc85dSRick Macklem if (ret != 1) { 648b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: Can't use " 649b9cbc85dSRick Macklem "private key path=%s ret=%d\n", path, ret); 650b9cbc85dSRick Macklem SSL_free(ssl); 651b9cbc85dSRick Macklem return (NULL); 652b9cbc85dSRick Macklem } 653b9cbc85dSRick Macklem } 654b9cbc85dSRick Macklem 655b9cbc85dSRick Macklem ret = SSL_connect(ssl); 656b9cbc85dSRick Macklem if (ret != 1) { 657b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: " 658b9cbc85dSRick Macklem "SSL_connect failed %d\n", 659b9cbc85dSRick Macklem ret); 660b9cbc85dSRick Macklem SSL_free(ssl); 661b9cbc85dSRick Macklem return (NULL); 662b9cbc85dSRick Macklem } 663b9cbc85dSRick Macklem 664b9cbc85dSRick Macklem cert = SSL_get_peer_certificate(ssl); 665b9cbc85dSRick Macklem if (cert == NULL) { 666b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: get peer" 667b9cbc85dSRick Macklem " certificate failed\n"); 668b9cbc85dSRick Macklem SSL_free(ssl); 669b9cbc85dSRick Macklem return (NULL); 670b9cbc85dSRick Macklem } 671b9cbc85dSRick Macklem gethostret = rpctls_gethost(s, sad, hostnam, sizeof(hostnam)); 672b9cbc85dSRick Macklem if (gethostret == 0) 673b9cbc85dSRick Macklem hostnam[0] = '\0'; 674b9cbc85dSRick Macklem verfret = SSL_get_verify_result(ssl); 675b9cbc85dSRick Macklem if (verfret == X509_V_OK && (rpctls_verify_cafile != NULL || 676b9cbc85dSRick Macklem rpctls_verify_capath != NULL) && (gethostret == 0 || 677b9cbc85dSRick Macklem rpctls_checkhost(sad, cert, X509_CHECK_FLAG_NO_WILDCARDS) != 1)) 678b9cbc85dSRick Macklem verfret = X509_V_ERR_HOSTNAME_MISMATCH; 679b9cbc85dSRick Macklem if (verfret != X509_V_OK && (rpctls_verify_cafile != NULL || 680b9cbc85dSRick Macklem rpctls_verify_capath != NULL)) { 681b9cbc85dSRick Macklem if (verfret != X509_V_OK) { 682b9cbc85dSRick Macklem cp = X509_NAME_oneline(X509_get_issuer_name(cert), 683b9cbc85dSRick Macklem NULL, 0); 684b9cbc85dSRick Macklem cp2 = X509_NAME_oneline(X509_get_subject_name(cert), 685b9cbc85dSRick Macklem NULL, 0); 686b9cbc85dSRick Macklem if (rpctls_debug_level == 0) 687b9cbc85dSRick Macklem syslog(LOG_INFO | LOG_DAEMON, 688b9cbc85dSRick Macklem "rpctls_connect: client IP %s " 689b9cbc85dSRick Macklem "issuerName=%s subjectName=%s verify " 690b9cbc85dSRick Macklem "failed %s\n", hostnam, cp, cp2, 691b9cbc85dSRick Macklem X509_verify_cert_error_string(verfret)); 692b9cbc85dSRick Macklem else 693b9cbc85dSRick Macklem fprintf(stderr, 694b9cbc85dSRick Macklem "rpctls_connect: client IP %s " 695b9cbc85dSRick Macklem "issuerName=%s subjectName=%s verify " 696b9cbc85dSRick Macklem "failed %s\n", hostnam, cp, cp2, 697b9cbc85dSRick Macklem X509_verify_cert_error_string(verfret)); 698b9cbc85dSRick Macklem } 699b9cbc85dSRick Macklem X509_free(cert); 700b9cbc85dSRick Macklem SSL_free(ssl); 701b9cbc85dSRick Macklem return (NULL); 702b9cbc85dSRick Macklem } 703b9cbc85dSRick Macklem 704b9cbc85dSRick Macklem /* Check to see if ktls is enabled on the connection. */ 705b9cbc85dSRick Macklem ret = BIO_get_ktls_send(SSL_get_wbio(ssl)); 706b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: BIO_get_ktls_send=%d\n", ret); 707b9cbc85dSRick Macklem if (ret != 0) { 708b9cbc85dSRick Macklem ret = BIO_get_ktls_recv(SSL_get_rbio(ssl)); 709b9cbc85dSRick Macklem rpctls_verbose_out("rpctls_connect: BIO_get_ktls_recv=%d\n", 710b9cbc85dSRick Macklem ret); 711b9cbc85dSRick Macklem } 712b9cbc85dSRick Macklem if (ret == 0) { 713b9cbc85dSRick Macklem if (rpctls_debug_level == 0) 714b9cbc85dSRick Macklem syslog(LOG_ERR, "ktls not working\n"); 715b9cbc85dSRick Macklem else 716b9cbc85dSRick Macklem fprintf(stderr, "ktls not working\n"); 717b9cbc85dSRick Macklem X509_free(cert); 718b9cbc85dSRick Macklem SSL_free(ssl); 719b9cbc85dSRick Macklem return (NULL); 720b9cbc85dSRick Macklem } 721b9cbc85dSRick Macklem if (ret == X509_V_OK && (rpctls_verify_cafile != NULL || 722b9cbc85dSRick Macklem rpctls_verify_capath != NULL) && rpctls_crlfile != NULL) 723b9cbc85dSRick Macklem *certp = cert; 724b9cbc85dSRick Macklem else 725b9cbc85dSRick Macklem X509_free(cert); 726b9cbc85dSRick Macklem 727b9cbc85dSRick Macklem return (ssl); 728b9cbc85dSRick Macklem } 729b9cbc85dSRick Macklem 730b9cbc85dSRick Macklem static void 731b9cbc85dSRick Macklem rpctls_huphandler(int sig __unused) 732b9cbc85dSRick Macklem { 733b9cbc85dSRick Macklem 734b9cbc85dSRick Macklem rpctls_gothup = true; 735b9cbc85dSRick Macklem } 736