Index: projects/nfs-over-tls/usr.sbin/rpctlssd/rpctlssd.c =================================================================== --- projects/nfs-over-tls/usr.sbin/rpctlssd/rpctlssd.c (revision 359813) +++ projects/nfs-over-tls/usr.sbin/rpctlssd/rpctlssd.c (revision 359814) @@ -1,872 +1,872 @@ /*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ * Authors: Doug Rabson * Developed with Red Inc: Alfred Perlstein * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* Modified from gssd.c for the server side of kernel RPC-over-TLS. */ #include __FBSDID("$FreeBSD$"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "rpctlssd.h" #ifndef _PATH_RPCTLSSDSOCK #define _PATH_RPCTLSSDSOCK "/var/run/rpctlssd.sock" #define _PATH_RPCTLSSDS "S/var/run/rpctlssd.sock" #endif #ifndef _PATH_CERTANDKEY #define _PATH_CERTANDKEY "/etc/rpctlssd/" #endif #ifndef _PATH_RPCTLSSDPID #define _PATH_RPCTLSSDPID "/var/run/rpctlssd.pid" #endif #ifndef _PREFERRED_CIPHERS #define _PREFERRED_CIPHERS "SHA384:SHA256:!CAMELLIA" #endif static struct pidfh *rpctls_pfh = NULL; static int rpctls_debug_level; static bool rpctls_verbose; static SSL_CTX *rpctls_ctx = NULL; static bool rpctls_do_mutual = false; static const char *rpctls_verify_cafile = NULL; static const char *rpctls_verify_capath = NULL; static const char *rpctls_crlfile = NULL; static const char *rpctls_certdir = _PATH_CERTANDKEY; static bool rpctls_comparehost = false; static unsigned int rpctls_wildcard = X509_CHECK_FLAG_NO_WILDCARDS; static uint64_t rpctls_ssl_refno = 0; static uint64_t rpctls_ssl_sec = 0; static uint64_t rpctls_ssl_usec = 0; static bool rpctls_gothup = false; static bool rpctls_cnuser = false; static char *rpctls_dnsname; static const char *rpctls_cnuseroid = "1.2.3.4.6.9"; /* * A linked list of all current "SSL *"s and socket "fd"s * for kernel RPC TLS connections is maintained. * The "refno" field is a unique 64bit value used to * identify which entry a kernel RPC upcall refers to. */ LIST_HEAD(ssl_list, ssl_entry); struct ssl_entry { LIST_ENTRY(ssl_entry) next; uint64_t refno; int s; SSL *ssl; }; static struct ssl_list rpctls_ssllist; static void rpctlssd_terminate(int); static SSL_CTX *rpctls_setup_ssl(const char *certdir); static SSL *rpctls_server(SSL_CTX *ctx, int s, uint32_t *flags, uint32_t *uidp, int *ngrps, uint32_t *gidp); static int rpctls_gethost(int s, struct sockaddr *sad, char *hostip, size_t hostlen); static int rpctls_checkhost(struct sockaddr *sad, X509 *cert); static int rpctls_loadcrlfile(SSL_CTX *ctx); static int rpctls_cnname(X509 *cert, uint32_t *uidp, int *ngrps, uint32_t *gidp); static char *rpctls_getdnsname(char *dnsname); static void rpctls_huphandler(int sig __unused); extern void rpctlssd_1(struct svc_req *rqstp, SVCXPRT *transp); extern int gssd_syscall(const char *path); int main(int argc, char **argv) { /* * We provide an RPC service on a local-domain socket. The * kernel rpctls code will upcall to this daemon to do the initial * TLS handshake. */ struct sockaddr_un sun; int fd, oldmask, ch, debug; SVCXPRT *xprt; struct timeval tm; struct timezone tz; char hostname[MAXHOSTNAMELEN + 2]; pid_t otherpid; /* Check that another rpctlssd isn't already running. */ rpctls_pfh = pidfile_open(_PATH_RPCTLSSDPID, 0600, &otherpid); if (rpctls_pfh == NULL) { if (errno == EEXIST) errx(1, "rpctlssd already running, pid: %d.", otherpid); warn("cannot open or create pidfile"); } /* Get the time when this daemon is started. */ gettimeofday(&tm, &tz); rpctls_ssl_sec = tm.tv_sec; rpctls_ssl_usec = tm.tv_usec; /* Set the dns name for the server. */ rpctls_dnsname = rpctls_getdnsname(hostname); if (rpctls_dnsname == NULL) { strcpy(hostname, "@default.domain"); rpctls_dnsname = hostname; } fprintf(stderr, "dnsname=%s\n", rpctls_dnsname); debug = 0; rpctls_verbose = false; while ((ch = getopt(argc, argv, "D:dhl:n:mp:r:uvWw")) != -1) { switch (ch) { case 'D': rpctls_certdir = optarg; break; case 'd': rpctls_debug_level++; break; case 'h': rpctls_comparehost = true; break; case 'l': rpctls_verify_cafile = optarg; break; case 'm': rpctls_do_mutual = true; break; case 'n': hostname[0] = '@'; strlcpy(&hostname[1], optarg, MAXHOSTNAMELEN + 1); rpctls_dnsname = hostname; break; case 'p': rpctls_verify_capath = optarg; break; case 'r': rpctls_crlfile = optarg; break; case 'u': rpctls_cnuser = true; break; case 'v': rpctls_verbose = true; break; case 'W': if (rpctls_wildcard != X509_CHECK_FLAG_NO_WILDCARDS) errx(1, "options -w and -W are mutually " "exclusive"); rpctls_wildcard = X509_CHECK_FLAG_MULTI_LABEL_WILDCARDS; break; case 'w': if (rpctls_wildcard != X509_CHECK_FLAG_NO_WILDCARDS) errx(1, "options -w and -W are mutually " "exclusive"); rpctls_wildcard = 0; break; default: fprintf(stderr, "usage: %s " "[-D certdir] [-d] [-h] " "[-l CAfile] [-m] " "[-n domain_name] " "[-p CApath] [-r CRLfile] " "[-u] [-v] [-W] [-w]\n", argv[0]); exit(1); } } if (rpctls_do_mutual && rpctls_verify_cafile == NULL && rpctls_verify_capath == NULL) errx(1, "-m requires the -l and/or " "-p options"); if (rpctls_comparehost && (!rpctls_do_mutual || (rpctls_verify_cafile == NULL && rpctls_verify_capath == NULL))) errx(1, "-h requires the -m plus the " "-l and/or -p options"); if (!rpctls_comparehost && rpctls_wildcard != X509_CHECK_FLAG_NO_WILDCARDS) errx(1, "The -w or -W options require the -h option"); if (rpctls_cnuser && (!rpctls_do_mutual || (rpctls_verify_cafile == NULL && rpctls_verify_capath == NULL))) errx(1, "-u requires the -m plus the " "-l and/or -p options"); if (modfind("krpc") < 0) { /* Not present in kernel, try loading it */ if (kldload("krpc") < 0 || modfind("krpc") < 0) errx(1, "Kernel RPC is not available"); } if (rpctls_debug_level == 0) { if (daemon(0, 0) != 0) err(1, "Can't daemonize"); signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); signal(SIGHUP, SIG_IGN); } signal(SIGTERM, rpctlssd_terminate); signal(SIGPIPE, rpctlssd_terminate); signal(SIGHUP, rpctls_huphandler); pidfile_write(rpctls_pfh); memset(&sun, 0, sizeof sun); sun.sun_family = AF_LOCAL; unlink(_PATH_RPCTLSSDSOCK); strcpy(sun.sun_path, _PATH_RPCTLSSDSOCK); sun.sun_len = SUN_LEN(&sun); fd = socket(AF_LOCAL, SOCK_STREAM, 0); if (fd < 0) { if (rpctls_debug_level == 0) { syslog(LOG_ERR, "Can't create local rpctlssd socket"); exit(1); } err(1, "Can't create local rpctlssd socket"); } oldmask = umask(S_IXUSR|S_IRWXG|S_IRWXO); if (bind(fd, (struct sockaddr *)&sun, sun.sun_len) < 0) { if (rpctls_debug_level == 0) { syslog(LOG_ERR, "Can't bind local rpctlssd socket"); exit(1); } err(1, "Can't bind local rpctlssd socket"); } umask(oldmask); if (listen(fd, SOMAXCONN) < 0) { if (rpctls_debug_level == 0) { syslog(LOG_ERR, "Can't listen on local rpctlssd socket"); exit(1); } err(1, "Can't listen on local rpctlssd socket"); } xprt = svc_vc_create(fd, RPC_MAXDATASIZE, RPC_MAXDATASIZE); if (!xprt) { if (rpctls_debug_level == 0) { syslog(LOG_ERR, "Can't create transport for local rpctlssd socket"); exit(1); } err(1, "Can't create transport for local rpctlssd socket"); } if (!svc_reg(xprt, RPCTLSSD, RPCTLSSDVERS, rpctlssd_1, NULL)) { if (rpctls_debug_level == 0) { syslog(LOG_ERR, "Can't register service for local rpctlssd socket"); exit(1); } err(1, "Can't register service for local rpctlssd socket"); } rpctls_ctx = rpctls_setup_ssl(rpctls_certdir); if (rpctls_ctx == NULL) { if (rpctls_debug_level == 0) { syslog(LOG_ERR, "Can't create SSL context"); exit(1); } err(1, "Can't create SSL context"); } rpctls_gothup = false; LIST_INIT(&rpctls_ssllist); gssd_syscall(_PATH_RPCTLSSDS); svc_run(); gssd_syscall("S"); SSL_CTX_free(rpctls_ctx); EVP_cleanup(); return (0); } static void rpctlssd_verbose_out(const char *fmt, ...) { va_list ap; if (rpctls_verbose) { va_start(ap, fmt); if (rpctls_debug_level == 0) vsyslog(LOG_INFO | LOG_DAEMON, fmt, ap); else vfprintf(stderr, fmt, ap); va_end(ap); } } bool_t rpctlssd_null_1_svc(void *argp, void *result, struct svc_req *rqstp) { rpctlssd_verbose_out("rpctlssd_null_svc: done\n"); return (TRUE); } bool_t rpctlssd_connect_1_svc(void *argp, struct rpctlssd_connect_res *result, struct svc_req *rqstp) { int ngrps, s; SSL *ssl; uint32_t flags; struct ssl_entry *newslp; uint32_t uid; uint32_t *gidp; rpctlssd_verbose_out("rpctlsd_connect_svc: started\n"); memset(result, 0, sizeof(*result)); /* Get the socket fd from the kernel. */ s = gssd_syscall("E"); rpctlssd_verbose_out("rpctlsd_connect_svc s=%d\n", s); if (s < 0) return (FALSE); /* Do the server side of a TLS handshake. */ gidp = calloc(NGROUPS, sizeof(*gidp)); ssl = rpctls_server(rpctls_ctx, s, &flags, &uid, &ngrps, gidp); if (ssl == NULL) { free(gidp); rpctlssd_verbose_out("rpctlssd_connect_svc: ssl " "accept failed\n"); /* * For RPC-over-TLS, this upcall is expected * to close off the socket. */ close(s); return (FALSE); } else { rpctlssd_verbose_out("rpctlssd_connect_svc: " "succeeded flags=0x%x\n", flags); result->flags = flags; result->sec = rpctls_ssl_sec; result->usec = rpctls_ssl_usec; result->ssl = ++rpctls_ssl_refno; /* Hard to believe this could ever wrap around.. */ if (rpctls_ssl_refno == 0) result->ssl = ++rpctls_ssl_refno; - if ((flags & RPCTLS_FLAGS_CNUSER) != 0) { + if ((flags & RPCTLS_FLAGS_CERTUSER) != 0) { result->uid = uid; result->gid.gid_len = ngrps; result->gid.gid_val = gidp; } else { result->uid = 0; result->gid.gid_len = 0; result->gid.gid_val = gidp; } } /* Maintain list of all current SSL *'s */ newslp = malloc(sizeof(*newslp)); newslp->ssl = ssl; newslp->s = s; newslp->refno = rpctls_ssl_refno; LIST_INSERT_HEAD(&rpctls_ssllist, newslp, next); return (TRUE); } bool_t rpctlssd_disconnect_1_svc(struct rpctlssd_disconnect_arg *argp, void *result, struct svc_req *rqstp) { struct ssl_entry *slp; slp = NULL; if (argp->sec == rpctls_ssl_sec && argp->usec == rpctls_ssl_usec) { LIST_FOREACH(slp, &rpctls_ssllist, next) { if (slp->refno == argp->ssl) break; } } if (slp != NULL) { rpctlssd_verbose_out("rpctlssd_disconnect fd=%d closed\n", slp->s); LIST_REMOVE(slp, next); SSL_shutdown(slp->ssl); SSL_free(slp->ssl); /* * For RPC-over-TLS, this upcall is expected * to close off the socket. */ close(slp->s); free(slp); } else return (FALSE); return (TRUE); } int rpctlssd_1_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, caddr_t result) { rpctlssd_connect_res *res; if (xdr_result == (xdrproc_t)xdr_rpctlssd_connect_res) { res = (rpctlssd_connect_res *)result; if (res->gid.gid_val != NULL) free(res->gid.gid_val); } return (TRUE); } static void rpctlssd_terminate(int sig __unused) { gssd_syscall("S"); pidfile_remove(rpctls_pfh); exit(0); } /* Allow the handshake to proceed. */ static int rpctls_verify_callback(int preverify_ok, X509_STORE_CTX *x509_ctx) { return (1); } static SSL_CTX * rpctls_setup_ssl(const char *certdir) { SSL_CTX *ctx; char path[PATH_MAX]; size_t len, rlen; int ret; SSL_library_init(); SSL_load_error_strings(); OpenSSL_add_all_algorithms(); ctx = SSL_CTX_new(TLS_server_method()); if (ctx == NULL) { rpctlssd_verbose_out("rpctls_setup_ssl: SSL_CTX_new failed\n"); return (NULL); } SSL_CTX_set_ecdh_auto(ctx, 1); /* * Set preferred ciphers, since KERN_TLS only supports a * few of them. */ ret = SSL_CTX_set_cipher_list(ctx, _PREFERRED_CIPHERS); if (ret == 0) { rpctlssd_verbose_out("rpctls_setup_ssl: " "SSL_CTX_set_cipher_list failed to set any ciphers\n"); SSL_CTX_free(ctx); return (NULL); } /* Get the cert.pem and key.pem files from the directory certdir. */ len = strlcpy(path, certdir, sizeof(path)); rlen = sizeof(path) - len; if (strlcpy(&path[len], "cert.pem", rlen) != 8) { SSL_CTX_free(ctx); return (NULL); } ret = SSL_CTX_use_certificate_file(ctx, path, SSL_FILETYPE_PEM); if (ret != 1) { rpctlssd_verbose_out("rpctls_setup_ssl: can't use certificate " "file path=%s ret=%d\n", path, ret); SSL_CTX_free(ctx); return (NULL); } if (strlcpy(&path[len], "key.pem", rlen) != 7) { SSL_CTX_free(ctx); return (NULL); } ret = SSL_CTX_use_PrivateKey_file(ctx, path, SSL_FILETYPE_PEM); if (ret != 1) { rpctlssd_verbose_out("rpctls_setup_ssl: Can't use private " "key path=%s ret=%d\n", path, ret); SSL_CTX_free(ctx); return (NULL); } /* Set Mutual authentication, as required. */ if (rpctls_do_mutual) { if (rpctls_verify_cafile != NULL || rpctls_verify_capath != NULL) { if (rpctls_crlfile != NULL) { ret = rpctls_loadcrlfile(ctx); if (ret == 0) { rpctlssd_verbose_out("rpctls_setup_ssl:" " Load CRLfile failed\n"); SSL_CTX_free(ctx); return (NULL); } } ret = SSL_CTX_load_verify_locations(ctx, rpctls_verify_cafile, rpctls_verify_capath); if (ret == 0) { rpctlssd_verbose_out("rpctls_setup_ssl: " "Can't load verify locations\n"); SSL_CTX_free(ctx); return (NULL); } if (rpctls_verify_cafile != NULL) SSL_CTX_set_client_CA_list(ctx, SSL_load_client_CA_file( rpctls_verify_cafile)); } SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, rpctls_verify_callback); } return (ctx); } static SSL * rpctls_server(SSL_CTX *ctx, int s, uint32_t *flags, uint32_t *uidp, int *ngrps, uint32_t *gidp) { SSL *ssl; X509 *cert; struct sockaddr *sad; struct sockaddr_storage ad; char hostnam[NI_MAXHOST]; int gethostret, ret; char *cp, *cp2; *flags = 0; sad = (struct sockaddr *)&ad; if (rpctls_gothup) { rpctls_gothup = false; ret = rpctls_loadcrlfile(ctx); if (ret == 0) rpctlssd_verbose_out("rpctls_server: Can't " "reload CRLfile\n"); } ssl = SSL_new(ctx); if (ssl == NULL) { rpctlssd_verbose_out("rpctls_server: SSL_new failed\n"); return (NULL); } if (SSL_set_fd(ssl, s) != 1) { rpctlssd_verbose_out("rpctls_server: SSL_set_fd failed\n"); SSL_free(ssl); return (NULL); } ret = SSL_accept(ssl); if (ret != 1) { rpctlssd_verbose_out("rpctls_server: SSL_accept " "failed ret=%d\n", ret); SSL_free(ssl); return (NULL); } *flags |= RPCTLS_FLAGS_HANDSHAKE; if (rpctls_do_mutual) { cert = SSL_get_peer_certificate(ssl); if (cert != NULL) { gethostret = rpctls_gethost(s, sad, hostnam, sizeof(hostnam)); if (gethostret == 0) hostnam[0] = '\0'; cp2 = X509_NAME_oneline( X509_get_subject_name(cert), NULL, 0); rpctlssd_verbose_out("%s\n", cp2); *flags |= RPCTLS_FLAGS_GOTCERT; ret = SSL_get_verify_result(ssl); if (ret != X509_V_OK) { cp = X509_NAME_oneline( X509_get_issuer_name(cert), NULL, 0); if (rpctls_debug_level == 0) syslog(LOG_INFO | LOG_DAEMON, "rpctls_server: client IP %s " "issuerName=%s subjectName=%s" " verify failed %s\n", hostnam, cp, cp2, X509_verify_cert_error_string(ret)); else fprintf(stderr, "rpctls_server: client IP %s " "issuerName=%s subjectName=%s" " verify failed %s\n", hostnam, cp, cp2, X509_verify_cert_error_string(ret)); } if (ret == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT || ret == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN) *flags |= RPCTLS_FLAGS_SELFSIGNED; else if (ret == X509_V_OK) { if (rpctls_comparehost) { ret = 0; if (gethostret != 0) ret = rpctls_checkhost(sad, cert); if (ret != 1) { *flags |= RPCTLS_FLAGS_DISABLED; rpctlssd_verbose_out( "rpctls_server: " "checkhost " "failed\n"); } } if (rpctls_cnuser) { ret = rpctls_cnname(cert, uidp, ngrps, gidp); if (ret != 0) - *flags |= RPCTLS_FLAGS_CNUSER; + *flags |= RPCTLS_FLAGS_CERTUSER; } *flags |= RPCTLS_FLAGS_VERIFIED; } X509_free(cert); } else rpctlssd_verbose_out("rpctls_server: " "No peer certificate\n"); } return (ssl); } /* * Get the client's IP address. */ static int rpctls_gethost(int s, struct sockaddr *sad, char *hostip, size_t hostlen) { socklen_t slen; int ret; slen = sizeof(struct sockaddr_storage); if (getpeername(s, sad, &slen) < 0) return (0); ret = 0; if (getnameinfo((const struct sockaddr *)sad, sad->sa_len, hostip, hostlen, NULL, 0, NI_NUMERICHOST) == 0) { rpctlssd_verbose_out("rpctls_gethost: %s\n", hostip); ret = 1; } return (ret); } /* * Check a client IP address against any host address in the * certificate. Basically getnameinfo(3) and * X509_check_host(). */ static int rpctls_checkhost(struct sockaddr *sad, X509 *cert) { char hostnam[NI_MAXHOST]; int ret; if (getnameinfo((const struct sockaddr *)sad, sad->sa_len, hostnam, sizeof(hostnam), NULL, 0, NI_NAMEREQD) != 0) return (0); rpctlssd_verbose_out("rpctls_checkhost: DNS %s\n", hostnam); ret = X509_check_host(cert, hostnam, strlen(hostnam), rpctls_wildcard, NULL); return (ret); } /* * Acquire the dnsname for this server. */ static char * rpctls_getdnsname(char *hostname) { char *cp, *dnsname; struct addrinfo *aip, hints; int error; dnsname = NULL; if (gethostname(hostname, MAXHOSTNAMELEN) == 0) { if ((cp = strchr(hostname, '.')) != NULL && *(cp + 1) != '\0') { *cp = '@'; dnsname = cp; } else { memset((void *)&hints, 0, sizeof (hints)); hints.ai_flags = AI_CANONNAME; error = getaddrinfo(hostname, NULL, &hints, &aip); if (error == 0) { if (aip->ai_canonname != NULL && (cp = strchr(aip->ai_canonname, '.')) != NULL && *(cp + 1) != '\0') { hostname[0] = '@'; strlcpy(&hostname[1], cp + 1, MAXHOSTNAMELEN + 1); dnsname = hostname; } freeaddrinfo(aip); } } } return (dnsname); } /* * Check a commonName to see if it maps to "user@domain" and * acquire a for it if it does. */ static int rpctls_cnname(X509 *cert, uint32_t *uidp, int *ngrps, uint32_t *gidp) { char *cp, usern[1024 + 1]; struct passwd *pwd; gid_t gids[NGROUPS]; int i; GENERAL_NAMES *genlist; GENERAL_NAME *genname; OTHERNAME *val; /* First, find the otherName in the subjectAltName. */ genlist = X509_get_ext_d2i(cert, NID_subject_alt_name, NULL, NULL); rpctlssd_verbose_out("genlist=%p\n", genlist); if (genlist == NULL) return (0); val = NULL; for (i = 0; i < sk_GENERAL_NAME_num(genlist); i++) { genname = sk_GENERAL_NAME_value(genlist, i); if (genname->type != GEN_OTHERNAME) continue; val = genname->d.otherName; break; } if (val == NULL) return (0); rpctlssd_verbose_out("fnd type=0x%x len=%d anstyp=0x%x data=%s\n", val->value->type, val->value->value.utf8string->length, val->value->value.utf8string->type, val->value->value.utf8string->data); /* Check to see that it is the correct OID. */ i = i2t_ASN1_OBJECT(usern, sizeof(usern), val->type_id); rpctlssd_verbose_out("obj=%d str=%s\n", i, usern); if (i != strlen(rpctls_cnuseroid) || memcmp(usern, rpctls_cnuseroid, i) != 0) { rpctlssd_verbose_out("rpctls_cnname: invalid cnuser " "oid len=%d val=%s\n", i, usern); return (0); } /* Sanity check the otherName. */ if (val->value->type != V_ASN1_UTF8STRING || val->value->value.utf8string->length < 3 || val->value->value.utf8string->length > sizeof(usern) - 1) { rpctlssd_verbose_out("rpctls_cnname: invalid cnuser " "type=%d\n", val->value->type); return (0); } /* Look for a "user" in the otherName */ memcpy(usern, val->value->value.utf8string->data, val->value->value.utf8string->length); usern[val->value->value.utf8string->length] = '\0'; rpctlssd_verbose_out("rpctls_cnname: userstr %s\n", usern); /* Now, look for the @dnsname suffix in the commonName. */ cp = strcasestr(usern, rpctls_dnsname); if (cp == NULL) return (0); rpctlssd_verbose_out("dns=%s\n", cp); if (*(cp + strlen(rpctls_dnsname)) != '\0') return (0); *cp = '\0'; /* See if the "user" is in the passwd database. */ rpctlssd_verbose_out("user=%s\n", usern); pwd = getpwnam(usern); if (pwd == NULL) return (0); rpctlssd_verbose_out("pwname=%s\n", pwd->pw_name); *uidp = pwd->pw_uid; *ngrps = NGROUPS; if (getgrouplist(pwd->pw_name, pwd->pw_gid, gids, ngrps) < 0) return (0); for (i = 0; i < *ngrps; i++) gidp[i] = gids[i]; return (1); } /* * (re)load the CRLfile into the certificate verification store. */ static int rpctls_loadcrlfile(SSL_CTX *ctx) { X509_STORE *certstore; X509_LOOKUP *certlookup; int ret; if ((rpctls_verify_cafile != NULL || rpctls_verify_capath != NULL) && rpctls_crlfile != NULL) { certstore = SSL_CTX_get_cert_store(ctx); certlookup = X509_STORE_add_lookup( certstore, X509_LOOKUP_file()); ret = 0; if (certlookup != NULL) ret = X509_load_crl_file(certlookup, rpctls_crlfile, X509_FILETYPE_PEM); if (ret != 0) ret = X509_STORE_set_flags(certstore, X509_V_FLAG_CRL_CHECK | X509_V_FLAG_CRL_CHECK_ALL); if (ret == 0) { rpctlssd_verbose_out( "rpctls_loadcrlfile: Can't" " load CRLfile=%s\n", rpctls_crlfile); return (ret); } } return (1); } static void rpctls_huphandler(int sig __unused) { rpctls_gothup = true; }