Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 1 | /* |
| 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
| 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
| 4 | * All rights reserved |
Damien Miller | e4340be | 2000-09-16 13:29:08 +1100 | [diff] [blame] | 5 | * As far as I am concerned, the code I have written for this software |
| 6 | * can be used freely for any purpose. Any derived versions of this |
| 7 | * software must be clearly marked as such, and if the derived work is |
| 8 | * incompatible with the protocol description in the RFC file, it must be |
| 9 | * called by a name other than "ssh" or "Secure Shell". |
| 10 | */ |
| 11 | |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 12 | #include "includes.h" |
Damien Miller | d558092 | 2003-05-14 13:40:06 +1000 | [diff] [blame] | 13 | RCSID("$OpenBSD: auth-options.c,v 1.27 2003/04/08 20:21:28 itojun Exp $"); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 14 | |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 15 | #include "xmalloc.h" |
| 16 | #include "match.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 17 | #include "log.h" |
| 18 | #include "canohost.h" |
Ben Lindstrom | c763767 | 2001-06-09 00:36:26 +0000 | [diff] [blame] | 19 | #include "channels.h" |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 20 | #include "auth-options.h" |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 21 | #include "servconf.h" |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 22 | #include "misc.h" |
Ben Lindstrom | 7a2073c | 2002-03-22 02:30:41 +0000 | [diff] [blame] | 23 | #include "monitor_wrap.h" |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 24 | #include "auth.h" |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 25 | |
| 26 | /* Flags set authorized_keys flags */ |
| 27 | int no_port_forwarding_flag = 0; |
| 28 | int no_agent_forwarding_flag = 0; |
| 29 | int no_x11_forwarding_flag = 0; |
| 30 | int no_pty_flag = 0; |
| 31 | |
| 32 | /* "command=" option. */ |
| 33 | char *forced_command = NULL; |
| 34 | |
| 35 | /* "environment=" options. */ |
| 36 | struct envstring *custom_environment = NULL; |
| 37 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 38 | extern ServerOptions options; |
| 39 | |
Ben Lindstrom | 7a2073c | 2002-03-22 02:30:41 +0000 | [diff] [blame] | 40 | void |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 41 | auth_clear_options(void) |
| 42 | { |
| 43 | no_agent_forwarding_flag = 0; |
| 44 | no_port_forwarding_flag = 0; |
| 45 | no_pty_flag = 0; |
| 46 | no_x11_forwarding_flag = 0; |
| 47 | while (custom_environment) { |
| 48 | struct envstring *ce = custom_environment; |
| 49 | custom_environment = ce->next; |
| 50 | xfree(ce->s); |
| 51 | xfree(ce); |
| 52 | } |
| 53 | if (forced_command) { |
| 54 | xfree(forced_command); |
| 55 | forced_command = NULL; |
| 56 | } |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 57 | channel_clear_permitted_opens(); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 58 | auth_debug_reset(); |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 59 | } |
| 60 | |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 61 | /* |
| 62 | * return 1 if access is granted, 0 if not. |
| 63 | * side effect: sets key option flags |
| 64 | */ |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 65 | int |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 66 | auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum) |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 67 | { |
| 68 | const char *cp; |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 69 | int i; |
Damien Miller | 874d77b | 2000-10-14 16:23:11 +1100 | [diff] [blame] | 70 | |
| 71 | /* reset options */ |
| 72 | auth_clear_options(); |
| 73 | |
Ben Lindstrom | 36d7bd0 | 2001-02-10 22:27:19 +0000 | [diff] [blame] | 74 | if (!opts) |
| 75 | return 1; |
| 76 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 77 | while (*opts && *opts != ' ' && *opts != '\t') { |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 78 | cp = "no-port-forwarding"; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 79 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 80 | auth_debug_add("Port forwarding disabled."); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 81 | no_port_forwarding_flag = 1; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 82 | opts += strlen(cp); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 83 | goto next_option; |
| 84 | } |
| 85 | cp = "no-agent-forwarding"; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 86 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 87 | auth_debug_add("Agent forwarding disabled."); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 88 | no_agent_forwarding_flag = 1; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 89 | opts += strlen(cp); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 90 | goto next_option; |
| 91 | } |
| 92 | cp = "no-X11-forwarding"; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 93 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 94 | auth_debug_add("X11 forwarding disabled."); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 95 | no_x11_forwarding_flag = 1; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 96 | opts += strlen(cp); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 97 | goto next_option; |
| 98 | } |
| 99 | cp = "no-pty"; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 100 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 101 | auth_debug_add("Pty allocation disabled."); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 102 | no_pty_flag = 1; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 103 | opts += strlen(cp); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 104 | goto next_option; |
| 105 | } |
| 106 | cp = "command=\""; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 107 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 108 | opts += strlen(cp); |
| 109 | forced_command = xmalloc(strlen(opts) + 1); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 110 | i = 0; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 111 | while (*opts) { |
| 112 | if (*opts == '"') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 113 | break; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 114 | if (*opts == '\\' && opts[1] == '"') { |
| 115 | opts += 2; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 116 | forced_command[i++] = '"'; |
| 117 | continue; |
| 118 | } |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 119 | forced_command[i++] = *opts++; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 120 | } |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 121 | if (!*opts) { |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 122 | debug("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 123 | file, linenum); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 124 | auth_debug_add("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 125 | file, linenum); |
Damien Miller | 056ddf7 | 2001-03-14 10:15:20 +1100 | [diff] [blame] | 126 | xfree(forced_command); |
| 127 | forced_command = NULL; |
| 128 | goto bad_option; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 129 | } |
| 130 | forced_command[i] = 0; |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 131 | auth_debug_add("Forced command: %.900s", forced_command); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 132 | opts++; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 133 | goto next_option; |
| 134 | } |
| 135 | cp = "environment=\""; |
Ben Lindstrom | 5d860f0 | 2002-08-01 01:28:38 +0000 | [diff] [blame] | 136 | if (options.permit_user_env && |
| 137 | strncasecmp(opts, cp, strlen(cp)) == 0) { |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 138 | char *s; |
| 139 | struct envstring *new_envstring; |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 140 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 141 | opts += strlen(cp); |
| 142 | s = xmalloc(strlen(opts) + 1); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 143 | i = 0; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 144 | while (*opts) { |
| 145 | if (*opts == '"') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 146 | break; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 147 | if (*opts == '\\' && opts[1] == '"') { |
| 148 | opts += 2; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 149 | s[i++] = '"'; |
| 150 | continue; |
| 151 | } |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 152 | s[i++] = *opts++; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 153 | } |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 154 | if (!*opts) { |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 155 | debug("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 156 | file, linenum); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 157 | auth_debug_add("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 158 | file, linenum); |
Damien Miller | 056ddf7 | 2001-03-14 10:15:20 +1100 | [diff] [blame] | 159 | xfree(s); |
| 160 | goto bad_option; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 161 | } |
| 162 | s[i] = 0; |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 163 | auth_debug_add("Adding to environment: %.900s", s); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 164 | debug("Adding to environment: %.900s", s); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 165 | opts++; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 166 | new_envstring = xmalloc(sizeof(struct envstring)); |
| 167 | new_envstring->s = s; |
| 168 | new_envstring->next = custom_environment; |
| 169 | custom_environment = new_envstring; |
| 170 | goto next_option; |
| 171 | } |
| 172 | cp = "from=\""; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 173 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 174 | const char *remote_ip = get_remote_ipaddr(); |
| 175 | const char *remote_host = get_canonical_hostname( |
Damien Miller | c5d8635 | 2002-02-05 12:13:41 +1100 | [diff] [blame] | 176 | options.verify_reverse_mapping); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 177 | char *patterns = xmalloc(strlen(opts) + 1); |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 178 | |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 179 | opts += strlen(cp); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 180 | i = 0; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 181 | while (*opts) { |
| 182 | if (*opts == '"') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 183 | break; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 184 | if (*opts == '\\' && opts[1] == '"') { |
| 185 | opts += 2; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 186 | patterns[i++] = '"'; |
| 187 | continue; |
| 188 | } |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 189 | patterns[i++] = *opts++; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 190 | } |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 191 | if (!*opts) { |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 192 | debug("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 193 | file, linenum); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 194 | auth_debug_add("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 226cfa0 | 2001-01-22 05:34:40 +0000 | [diff] [blame] | 195 | file, linenum); |
Damien Miller | 056ddf7 | 2001-03-14 10:15:20 +1100 | [diff] [blame] | 196 | xfree(patterns); |
| 197 | goto bad_option; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 198 | } |
| 199 | patterns[i] = 0; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 200 | opts++; |
Ben Lindstrom | f0c5029 | 2001-06-25 05:17:53 +0000 | [diff] [blame] | 201 | if (match_host_and_ip(remote_host, remote_ip, |
| 202 | patterns) != 1) { |
| 203 | xfree(patterns); |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 204 | logit("Authentication tried for %.100s with " |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 205 | "correct key but not from a permitted " |
| 206 | "host (host=%.200s, ip=%.200s).", |
| 207 | pw->pw_name, remote_host, remote_ip); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 208 | auth_debug_add("Your host '%.200s' is not " |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 209 | "permitted to use this key for login.", |
| 210 | remote_host); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 211 | /* deny access */ |
| 212 | return 0; |
| 213 | } |
Ben Lindstrom | f0c5029 | 2001-06-25 05:17:53 +0000 | [diff] [blame] | 214 | xfree(patterns); |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 215 | /* Host name matches. */ |
| 216 | goto next_option; |
| 217 | } |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 218 | cp = "permitopen=\""; |
| 219 | if (strncasecmp(opts, cp, strlen(cp)) == 0) { |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 220 | char host[256], sport[6]; |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 221 | u_short port; |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 222 | char *patterns = xmalloc(strlen(opts) + 1); |
| 223 | |
| 224 | opts += strlen(cp); |
| 225 | i = 0; |
| 226 | while (*opts) { |
| 227 | if (*opts == '"') |
| 228 | break; |
| 229 | if (*opts == '\\' && opts[1] == '"') { |
| 230 | opts += 2; |
| 231 | patterns[i++] = '"'; |
| 232 | continue; |
| 233 | } |
| 234 | patterns[i++] = *opts++; |
| 235 | } |
| 236 | if (!*opts) { |
| 237 | debug("%.100s, line %lu: missing end quote", |
| 238 | file, linenum); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 239 | auth_debug_add("%.100s, line %lu: missing end quote", |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 240 | file, linenum); |
| 241 | xfree(patterns); |
| 242 | goto bad_option; |
| 243 | } |
| 244 | patterns[i] = 0; |
| 245 | opts++; |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 246 | if (sscanf(patterns, "%255[^:]:%5[0-9]", host, sport) != 2 && |
| 247 | sscanf(patterns, "%255[^/]/%5[0-9]", host, sport) != 2) { |
| 248 | debug("%.100s, line %lu: Bad permitopen specification " |
| 249 | "<%.100s>", file, linenum, patterns); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 250 | auth_debug_add("%.100s, line %lu: " |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 251 | "Bad permitopen specification", file, linenum); |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 252 | xfree(patterns); |
| 253 | goto bad_option; |
| 254 | } |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 255 | if ((port = a2port(sport)) == 0) { |
| 256 | debug("%.100s, line %lu: Bad permitopen port <%.100s>", |
| 257 | file, linenum, sport); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 258 | auth_debug_add("%.100s, line %lu: " |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 259 | "Bad permitopen port", file, linenum); |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 260 | xfree(patterns); |
| 261 | goto bad_option; |
| 262 | } |
Ben Lindstrom | 2d70f98 | 2001-03-19 00:13:46 +0000 | [diff] [blame] | 263 | if (options.allow_tcp_forwarding) |
Ben Lindstrom | d71ba57 | 2001-09-12 18:03:31 +0000 | [diff] [blame] | 264 | channel_add_permitted_opens(host, port); |
Ben Lindstrom | 7bb8b49 | 2001-03-17 00:47:54 +0000 | [diff] [blame] | 265 | xfree(patterns); |
| 266 | goto next_option; |
| 267 | } |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 268 | next_option: |
| 269 | /* |
| 270 | * Skip the comma, and move to the next option |
| 271 | * (or break out if there are no more). |
| 272 | */ |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 273 | if (!*opts) |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 274 | fatal("Bugs in auth-options.c option processing."); |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 275 | if (*opts == ' ' || *opts == '\t') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 276 | break; /* End of options. */ |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 277 | if (*opts != ',') |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 278 | goto bad_option; |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 279 | opts++; |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 280 | /* Process the next option. */ |
| 281 | } |
Ben Lindstrom | 7a2073c | 2002-03-22 02:30:41 +0000 | [diff] [blame] | 282 | |
| 283 | if (!use_privsep) |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 284 | auth_debug_send(); |
Ben Lindstrom | 7a2073c | 2002-03-22 02:30:41 +0000 | [diff] [blame] | 285 | |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 286 | /* grant access */ |
| 287 | return 1; |
| 288 | |
| 289 | bad_option: |
Damien Miller | 996acd2 | 2003-04-09 20:59:48 +1000 | [diff] [blame] | 290 | logit("Bad options in %.100s file, line %lu: %.50s", |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 291 | file, linenum, opts); |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 292 | auth_debug_add("Bad options in %.100s file, line %lu: %.50s", |
Damien Miller | 3380426 | 2001-02-04 23:20:18 +1100 | [diff] [blame] | 293 | file, linenum, opts); |
Ben Lindstrom | 7a2073c | 2002-03-22 02:30:41 +0000 | [diff] [blame] | 294 | |
| 295 | if (!use_privsep) |
Ben Lindstrom | a574cda | 2002-05-15 16:16:14 +0000 | [diff] [blame] | 296 | auth_debug_send(); |
Ben Lindstrom | 7a2073c | 2002-03-22 02:30:41 +0000 | [diff] [blame] | 297 | |
Damien Miller | f6d9e22 | 2000-06-18 14:50:44 +1000 | [diff] [blame] | 298 | /* deny access */ |
| 299 | return 0; |
| 300 | } |