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author | Dag-Erling Smørgrav <des@FreeBSD.org> | 2013-09-18 17:27:38 +0000 |
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committer | Dag-Erling Smørgrav <des@FreeBSD.org> | 2013-09-18 17:27:38 +0000 |
commit | 0dddc34c88de4b0421dbb5279ad265a3615cc0bf (patch) | |
tree | a3ace41867a87a4a940a57f82cd20c283e6aa7cb /ssh.c | |
parent | caafb97d9eb8cad8284ac8a5ce9c3926538bb862 (diff) | |
download | src-test2-0dddc34c88de4b0421dbb5279ad265a3615cc0bf.tar.gz src-test2-0dddc34c88de4b0421dbb5279ad265a3615cc0bf.zip |
Notes
Diffstat (limited to 'ssh.c')
-rw-r--r-- | ssh.c | 97 |
1 files changed, 65 insertions, 32 deletions
@@ -1,4 +1,4 @@ -/* $OpenBSD: ssh.c,v 1.373 2013/02/22 22:09:01 djm Exp $ */ +/* $OpenBSD: ssh.c,v 1.381 2013/07/25 00:29:10 djm Exp $ */ /* * Author: Tatu Ylonen <ylo@cs.hut.fi> * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland @@ -197,9 +197,9 @@ usage(void) { fprintf(stderr, "usage: ssh [-1246AaCfgKkMNnqsTtVvXxYy] [-b bind_address] [-c cipher_spec]\n" -" [-D [bind_address:]port] [-e escape_char] [-F configfile]\n" -" [-I pkcs11] [-i identity_file]\n" -" [-L [bind_address:]port:host:hostport]\n" +" [-D [bind_address:]port] [-E log_file] [-e escape_char]\n" +" [-F configfile] [-I pkcs11] [-i identity_file]\n" +" [-L [bind_address:]port:host:hostport] [-Q protocol_feature]\n" " [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port]\n" " [-R [bind_address:]port:host:hostport] [-S ctl_path]\n" " [-W host:port] [-w local_tun[:remote_tun]]\n" @@ -226,7 +226,7 @@ tilde_expand_paths(char **paths, u_int num_paths) for (i = 0; i < num_paths; i++) { cp = tilde_expand_filename(paths[i], original_real_uid); - xfree(paths[i]); + free(paths[i]); paths[i] = cp; } } @@ -238,7 +238,7 @@ int main(int ac, char **av) { int i, r, opt, exit_status, use_syslog; - char *p, *cp, *line, *argv0, buf[MAXPATHLEN], *host_arg; + char *p, *cp, *line, *argv0, buf[MAXPATHLEN], *host_arg, *logfile; char thishost[NI_MAXHOST], shorthost[NI_MAXHOST], portstr[NI_MAXSERV]; struct stat st; struct passwd *pw; @@ -299,7 +299,7 @@ main(int ac, char **av) /* Get user data. */ pw = getpwuid(original_real_uid); if (!pw) { - logit("You don't exist, go away!"); + logit("No user exists for uid %lu", (u_long)original_real_uid); exit(255); } /* Take a copy of the returned structure. */ @@ -322,11 +322,12 @@ main(int ac, char **av) /* Parse command-line arguments. */ host = NULL; use_syslog = 0; + logfile = NULL; argv0 = av[0]; again: while ((opt = getopt(ac, av, "1246ab:c:e:fgi:kl:m:no:p:qstvx" - "ACD:F:I:KL:MNO:PR:S:TVw:W:XYy")) != -1) { + "ACD:E:F:I:KL:MNO:PQ:R:S:TVw:W:XYy")) != -1) { switch (opt) { case '1': options.protocol = SSH_PROTO_1; @@ -356,6 +357,9 @@ main(int ac, char **av) case 'y': use_syslog = 1; break; + case 'E': + logfile = xstrdup(optarg); + break; case 'Y': options.forward_x11 = 1; options.forward_x11_trusted = 1; @@ -385,6 +389,22 @@ main(int ac, char **av) case 'P': /* deprecated */ options.use_privileged_port = 0; break; + case 'Q': /* deprecated */ + cp = NULL; + if (strcasecmp(optarg, "cipher") == 0) + cp = cipher_alg_list(); + else if (strcasecmp(optarg, "mac") == 0) + cp = mac_alg_list(); + else if (strcasecmp(optarg, "kex") == 0) + cp = kex_alg_list(); + else if (strcasecmp(optarg, "key") == 0) + cp = key_alg_list(); + if (cp == NULL) + fatal("Unsupported query \"%s\"", optarg); + printf("%s\n", cp); + free(cp); + exit(0); + break; case 'a': options.forward_agent = 0; break; @@ -427,9 +447,8 @@ main(int ac, char **av) } else { if (options.log_level < SYSLOG_LEVEL_DEBUG3) options.log_level++; - break; } - /* FALLTHROUGH */ + break; case 'V': fprintf(stderr, "%s, %s\n", SSH_RELEASE, SSLeay_version(SSLEAY_VERSION)); @@ -454,7 +473,7 @@ main(int ac, char **av) if (parse_forward(&fwd, optarg, 1, 0)) { stdio_forward_host = fwd.listen_host; stdio_forward_port = fwd.listen_port; - xfree(fwd.connect_host); + free(fwd.connect_host); } else { fprintf(stderr, "Bad stdio forwarding specification '%s'\n", @@ -582,7 +601,7 @@ main(int ac, char **av) line, "command-line", 0, &dummy, SSHCONF_USERCONF) != 0) exit(255); - xfree(line); + free(line); break; case 's': subsystem_flag = 1; @@ -663,18 +682,28 @@ main(int ac, char **av) /* * Initialize "log" output. Since we are the client all output - * actually goes to stderr. + * goes to stderr unless otherwise specified by -y or -E. */ + if (use_syslog && logfile != NULL) + fatal("Can't specify both -y and -E"); + if (logfile != NULL) { + log_redirect_stderr_to(logfile); + free(logfile); + } log_init(argv0, options.log_level == -1 ? SYSLOG_LEVEL_INFO : options.log_level, SYSLOG_FACILITY_USER, !use_syslog); + if (debug_flag) + logit("%s, %s", SSH_VERSION, SSLeay_version(SSLEAY_VERSION)); + /* * Read per-user configuration file. Ignore the system wide config * file if the user specifies a config file on the command line. */ if (config != NULL) { - if (!read_config_file(config, host, &options, SSHCONF_USERCONF)) + if (strcasecmp(config, "none") != 0 && + !read_config_file(config, host, &options, SSHCONF_USERCONF)) fatal("Can't open user config file %.100s: " "%.100s", config, strerror(errno)); } else { @@ -749,7 +778,7 @@ main(int ac, char **av) "p", portstr, "u", pw->pw_name, "L", shorthost, (char *)NULL); debug3("expanded LocalCommand: %s", options.local_command); - xfree(cp); + free(cp); } /* force lowercase for hostkey matching */ @@ -761,24 +790,24 @@ main(int ac, char **av) if (options.proxy_command != NULL && strcmp(options.proxy_command, "none") == 0) { - xfree(options.proxy_command); + free(options.proxy_command); options.proxy_command = NULL; } if (options.control_path != NULL && strcmp(options.control_path, "none") == 0) { - xfree(options.control_path); + free(options.control_path); options.control_path = NULL; } if (options.control_path != NULL) { cp = tilde_expand_filename(options.control_path, original_real_uid); - xfree(options.control_path); + free(options.control_path); options.control_path = percent_expand(cp, "h", host, "l", thishost, "n", host_arg, "r", options.user, "p", portstr, "u", pw->pw_name, "L", shorthost, (char *)NULL); - xfree(cp); + free(cp); } if (muxclient_command != 0 && options.control_path == NULL) fatal("No ControlPath specified for \"-O\" command"); @@ -929,13 +958,11 @@ main(int ac, char **av) sensitive_data.keys[i] = NULL; } } - xfree(sensitive_data.keys); + free(sensitive_data.keys); } for (i = 0; i < options.num_identity_files; i++) { - if (options.identity_files[i]) { - xfree(options.identity_files[i]); - options.identity_files[i] = NULL; - } + free(options.identity_files[i]); + options.identity_files[i] = NULL; if (options.identity_keys[i]) { key_free(options.identity_keys[i]); options.identity_keys[i] = NULL; @@ -995,6 +1022,7 @@ control_persist_detach(void) if (devnull > STDERR_FILENO) close(devnull); } + daemon(1, 1); setproctitle("%s [mux]", options.control_path); } @@ -1453,6 +1481,11 @@ ssh_session2(void) if (!no_shell_flag || (datafellows & SSH_BUG_DUMMYCHAN)) id = ssh_session2_open(); + else { + packet_set_interactive( + options.control_master == SSHCTL_MASTER_NO, + options.ip_qos_interactive, options.ip_qos_bulk); + } /* If we don't expect to open a new session, then disallow it */ if (options.control_master == SSHCTL_MASTER_NO && @@ -1525,7 +1558,7 @@ load_public_identity_files(void) xstrdup(options.pkcs11_provider); /* XXX */ n_ids++; } - xfree(keys); + free(keys); } #endif /* ENABLE_PKCS11 */ if ((pw = getpwuid(original_real_uid)) == NULL) @@ -1538,7 +1571,7 @@ load_public_identity_files(void) for (i = 0; i < options.num_identity_files; i++) { if (n_ids >= SSH_MAX_IDENTITY_FILES || strcasecmp(options.identity_files[i], "none") == 0) { - xfree(options.identity_files[i]); + free(options.identity_files[i]); continue; } cp = tilde_expand_filename(options.identity_files[i], @@ -1546,11 +1579,11 @@ load_public_identity_files(void) filename = percent_expand(cp, "d", pwdir, "u", pwname, "l", thishost, "h", host, "r", options.user, (char *)NULL); - xfree(cp); + free(cp); public = key_load_public(filename, NULL); debug("identity file %s type %d", filename, public ? public->type : -1); - xfree(options.identity_files[i]); + free(options.identity_files[i]); identity_files[n_ids] = filename; identity_keys[n_ids] = public; @@ -1563,14 +1596,14 @@ load_public_identity_files(void) debug("identity file %s type %d", cp, public ? public->type : -1); if (public == NULL) { - xfree(cp); + free(cp); continue; } if (!key_is_cert(public)) { debug("%s: key %s type %s is not a certificate", __func__, cp, key_type(public)); key_free(public); - xfree(cp); + free(cp); continue; } identity_keys[n_ids] = public; @@ -1583,9 +1616,9 @@ load_public_identity_files(void) memcpy(options.identity_keys, identity_keys, sizeof(identity_keys)); bzero(pwname, strlen(pwname)); - xfree(pwname); + free(pwname); bzero(pwdir, strlen(pwdir)); - xfree(pwdir); + free(pwdir); } static void |