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8efc0c15 | 1 | /* |
5260325f | 2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> |
5260325f | 3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
4 | * All rights reserved | |
5260325f | 5 | * Functions for reading the configuration files. |
6ae2364d | 6 | * |
bcbf86ec | 7 | * As far as I am concerned, the code I have written for this software |
8 | * can be used freely for any purpose. Any derived versions of this | |
9 | * software must be clearly marked as such, and if the derived work is | |
10 | * incompatible with the protocol description in the RFC file, it must be | |
11 | * called by a name other than "ssh" or "Secure Shell". | |
5260325f | 12 | */ |
8efc0c15 | 13 | |
14 | #include "includes.h" | |
61a2c1da | 15 | RCSID("$OpenBSD: readconf.c,v 1.130 2004/04/27 09:46:36 djm Exp $"); |
8efc0c15 | 16 | |
17 | #include "ssh.h" | |
8efc0c15 | 18 | #include "xmalloc.h" |
a8be9f80 | 19 | #include "compat.h" |
42f11eb2 | 20 | #include "cipher.h" |
21 | #include "pathnames.h" | |
22 | #include "log.h" | |
23 | #include "readconf.h" | |
24 | #include "match.h" | |
25 | #include "misc.h" | |
b2552997 | 26 | #include "kex.h" |
27 | #include "mac.h" | |
8efc0c15 | 28 | |
29 | /* Format of the configuration file: | |
30 | ||
31 | # Configuration data is parsed as follows: | |
32 | # 1. command line options | |
33 | # 2. user-specific file | |
34 | # 3. system-wide file | |
35 | # Any configuration value is only changed the first time it is set. | |
36 | # Thus, host-specific definitions should be at the beginning of the | |
37 | # configuration file, and defaults at the end. | |
38 | ||
39 | # Host-specific declarations. These may override anything above. A single | |
40 | # host may match multiple declarations; these are processed in the order | |
41 | # that they are given in. | |
42 | ||
43 | Host *.ngs.fi ngs.fi | |
80fcb74e | 44 | User foo |
8efc0c15 | 45 | |
46 | Host fake.com | |
47 | HostName another.host.name.real.org | |
48 | User blaah | |
49 | Port 34289 | |
50 | ForwardX11 no | |
51 | ForwardAgent no | |
52 | ||
53 | Host books.com | |
54 | RemoteForward 9999 shadows.cs.hut.fi:9999 | |
55 | Cipher 3des | |
56 | ||
57 | Host fascist.blob.com | |
58 | Port 23123 | |
59 | User tylonen | |
8efc0c15 | 60 | PasswordAuthentication no |
61 | ||
62 | Host puukko.hut.fi | |
63 | User t35124p | |
64 | ProxyCommand ssh-proxy %h %p | |
65 | ||
66 | Host *.fr | |
80fcb74e | 67 | PublicKeyAuthentication no |
8efc0c15 | 68 | |
69 | Host *.su | |
70 | Cipher none | |
71 | PasswordAuthentication no | |
72 | ||
73 | # Defaults for various options | |
74 | Host * | |
75 | ForwardAgent no | |
fa08c86b | 76 | ForwardX11 no |
8efc0c15 | 77 | PasswordAuthentication yes |
78 | RSAAuthentication yes | |
79 | RhostsRSAAuthentication yes | |
8efc0c15 | 80 | StrictHostKeyChecking yes |
fd573618 | 81 | TcpKeepAlive no |
8efc0c15 | 82 | IdentityFile ~/.ssh/identity |
83 | Port 22 | |
84 | EscapeChar ~ | |
85 | ||
86 | */ | |
87 | ||
88 | /* Keyword tokens. */ | |
89 | ||
5260325f | 90 | typedef enum { |
91 | oBadOption, | |
d73a67d7 | 92 | oForwardAgent, oForwardX11, oForwardX11Trusted, oGatewayPorts, |
7203d6bb | 93 | oPasswordAuthentication, oRSAAuthentication, |
d464095c | 94 | oChallengeResponseAuthentication, oXAuthLocation, |
5260325f | 95 | oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward, |
96 | oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, | |
97 | oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts, | |
98 | oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression, | |
fd573618 | 99 | oCompressionLevel, oTCPKeepAlive, oNumberOfPasswordPrompts, |
b2552997 | 100 | oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol, oMacs, |
fa08c86b | 101 | oGlobalKnownHostsFile2, oUserKnownHostsFile2, oPubkeyAuthentication, |
cab80f75 | 102 | oKbdInteractiveAuthentication, oKbdInteractiveDevices, oHostKeyAlias, |
e961a8f9 | 103 | oDynamicForward, oPreferredAuthentications, oHostbasedAuthentication, |
e1c5bfaf | 104 | oHostKeyAlgorithms, oBindAddress, oSmartcardDevice, |
80fcb74e | 105 | oClearAllForwardings, oNoHostAuthenticationForLocalhost, |
09ab3296 | 106 | oEnableSSHKeysign, oRekeyLimit, oVerifyHostKeyDNS, oConnectTimeout, |
7364bd04 | 107 | oAddressFamily, oGssAuthentication, oGssDelegateCreds, |
3a065ed0 | 108 | oServerAliveInterval, oServerAliveCountMax, oIdentitiesOnly, |
61a2c1da | 109 | oSendEnv, |
a2144546 | 110 | oDeprecated, oUnsupported |
8efc0c15 | 111 | } OpCodes; |
112 | ||
113 | /* Textual representations of the tokens. */ | |
114 | ||
5260325f | 115 | static struct { |
116 | const char *name; | |
117 | OpCodes opcode; | |
118 | } keywords[] = { | |
119 | { "forwardagent", oForwardAgent }, | |
120 | { "forwardx11", oForwardX11 }, | |
d73a67d7 | 121 | { "forwardx11trusted", oForwardX11Trusted }, |
fa649821 | 122 | { "xauthlocation", oXAuthLocation }, |
5260325f | 123 | { "gatewayports", oGatewayPorts }, |
124 | { "useprivilegedport", oUsePrivilegedPort }, | |
0598d99d | 125 | { "rhostsauthentication", oDeprecated }, |
5260325f | 126 | { "passwordauthentication", oPasswordAuthentication }, |
94ec8c6b | 127 | { "kbdinteractiveauthentication", oKbdInteractiveAuthentication }, |
128 | { "kbdinteractivedevices", oKbdInteractiveDevices }, | |
5260325f | 129 | { "rsaauthentication", oRSAAuthentication }, |
fa08c86b | 130 | { "pubkeyauthentication", oPubkeyAuthentication }, |
d464095c | 131 | { "dsaauthentication", oPubkeyAuthentication }, /* alias */ |
8002af61 | 132 | { "rhostsrsaauthentication", oRhostsRSAAuthentication }, |
0140e66a | 133 | { "hostbasedauthentication", oHostbasedAuthentication }, |
d464095c | 134 | { "challengeresponseauthentication", oChallengeResponseAuthentication }, |
135 | { "skeyauthentication", oChallengeResponseAuthentication }, /* alias */ | |
136 | { "tisauthentication", oChallengeResponseAuthentication }, /* alias */ | |
a2144546 | 137 | { "kerberosauthentication", oUnsupported }, |
138 | { "kerberostgtpassing", oUnsupported }, | |
a2144546 | 139 | { "afstokenpassing", oUnsupported }, |
7364bd04 | 140 | #if defined(GSSAPI) |
141 | { "gssapiauthentication", oGssAuthentication }, | |
7364bd04 | 142 | { "gssapidelegatecredentials", oGssDelegateCreds }, |
143 | #else | |
144 | { "gssapiauthentication", oUnsupported }, | |
145 | { "gssapidelegatecredentials", oUnsupported }, | |
146 | #endif | |
80fcb74e | 147 | { "fallbacktorsh", oDeprecated }, |
148 | { "usersh", oDeprecated }, | |
5260325f | 149 | { "identityfile", oIdentityFile }, |
fa08c86b | 150 | { "identityfile2", oIdentityFile }, /* alias */ |
3a065ed0 | 151 | { "identitiesonly", oIdentitiesOnly }, |
5260325f | 152 | { "hostname", oHostName }, |
8abcdba4 | 153 | { "hostkeyalias", oHostKeyAlias }, |
5260325f | 154 | { "proxycommand", oProxyCommand }, |
155 | { "port", oPort }, | |
156 | { "cipher", oCipher }, | |
a8be9f80 | 157 | { "ciphers", oCiphers }, |
b2552997 | 158 | { "macs", oMacs }, |
a8be9f80 | 159 | { "protocol", oProtocol }, |
5260325f | 160 | { "remoteforward", oRemoteForward }, |
161 | { "localforward", oLocalForward }, | |
162 | { "user", oUser }, | |
163 | { "host", oHost }, | |
164 | { "escapechar", oEscapeChar }, | |
5260325f | 165 | { "globalknownhostsfile", oGlobalKnownHostsFile }, |
f49bc4f7 | 166 | { "userknownhostsfile", oUserKnownHostsFile }, /* obsolete */ |
a306f2dd | 167 | { "globalknownhostsfile2", oGlobalKnownHostsFile2 }, |
f49bc4f7 | 168 | { "userknownhostsfile2", oUserKnownHostsFile2 }, /* obsolete */ |
5260325f | 169 | { "connectionattempts", oConnectionAttempts }, |
170 | { "batchmode", oBatchMode }, | |
171 | { "checkhostip", oCheckHostIP }, | |
172 | { "stricthostkeychecking", oStrictHostKeyChecking }, | |
173 | { "compression", oCompression }, | |
174 | { "compressionlevel", oCompressionLevel }, | |
fd573618 | 175 | { "tcpkeepalive", oTCPKeepAlive }, |
176 | { "keepalive", oTCPKeepAlive }, /* obsolete */ | |
5260325f | 177 | { "numberofpasswordprompts", oNumberOfPasswordPrompts }, |
5260325f | 178 | { "loglevel", oLogLevel }, |
0490e609 | 179 | { "dynamicforward", oDynamicForward }, |
cab80f75 | 180 | { "preferredauthentications", oPreferredAuthentications }, |
e961a8f9 | 181 | { "hostkeyalgorithms", oHostKeyAlgorithms }, |
3435f5a6 | 182 | { "bindaddress", oBindAddress }, |
a2144546 | 183 | #ifdef SMARTCARD |
eea098a3 | 184 | { "smartcarddevice", oSmartcardDevice }, |
a2144546 | 185 | #else |
186 | { "smartcarddevice", oUnsupported }, | |
187 | #endif | |
184eed6a | 188 | { "clearallforwardings", oClearAllForwardings }, |
cc46e2ee | 189 | { "enablesshkeysign", oEnableSSHKeysign }, |
21289cd0 | 190 | { "verifyhostkeydns", oVerifyHostKeyDNS }, |
184eed6a | 191 | { "nohostauthenticationforlocalhost", oNoHostAuthenticationForLocalhost }, |
ffd7b36b | 192 | { "rekeylimit", oRekeyLimit }, |
09ab3296 | 193 | { "connecttimeout", oConnectTimeout }, |
f811e52a | 194 | { "addressfamily", oAddressFamily }, |
5d8d32a3 | 195 | { "serveraliveinterval", oServerAliveInterval }, |
196 | { "serveralivecountmax", oServerAliveCountMax }, | |
61a2c1da | 197 | { "sendenv", oSendEnv }, |
17a3011c | 198 | { NULL, oBadOption } |
6a17f9c2 | 199 | }; |
200 | ||
aa3378df | 201 | /* |
202 | * Adds a local TCP/IP port forward to options. Never returns if there is an | |
203 | * error. | |
204 | */ | |
8efc0c15 | 205 | |
6ae2364d | 206 | void |
57112b5a | 207 | add_local_forward(Options *options, u_short port, const char *host, |
208 | u_short host_port) | |
8efc0c15 | 209 | { |
5260325f | 210 | Forward *fwd; |
e6f15ed1 | 211 | #ifndef NO_IPPORT_RESERVED_CONCEPT |
5260325f | 212 | extern uid_t original_real_uid; |
5260325f | 213 | if (port < IPPORT_RESERVED && original_real_uid != 0) |
54b974dc | 214 | fatal("Privileged ports can only be forwarded by root."); |
3c62e7eb | 215 | #endif |
5260325f | 216 | if (options->num_local_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION) |
217 | fatal("Too many local forwards (max %d).", SSH_MAX_FORWARDS_PER_DIRECTION); | |
218 | fwd = &options->local_forwards[options->num_local_forwards++]; | |
219 | fwd->port = port; | |
220 | fwd->host = xstrdup(host); | |
221 | fwd->host_port = host_port; | |
8efc0c15 | 222 | } |
223 | ||
aa3378df | 224 | /* |
225 | * Adds a remote TCP/IP port forward to options. Never returns if there is | |
226 | * an error. | |
227 | */ | |
8efc0c15 | 228 | |
6ae2364d | 229 | void |
57112b5a | 230 | add_remote_forward(Options *options, u_short port, const char *host, |
231 | u_short host_port) | |
8efc0c15 | 232 | { |
5260325f | 233 | Forward *fwd; |
234 | if (options->num_remote_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION) | |
235 | fatal("Too many remote forwards (max %d).", | |
184eed6a | 236 | SSH_MAX_FORWARDS_PER_DIRECTION); |
5260325f | 237 | fwd = &options->remote_forwards[options->num_remote_forwards++]; |
238 | fwd->port = port; | |
239 | fwd->host = xstrdup(host); | |
240 | fwd->host_port = host_port; | |
8efc0c15 | 241 | } |
242 | ||
e1c5bfaf | 243 | static void |
244 | clear_forwardings(Options *options) | |
245 | { | |
246 | int i; | |
247 | ||
248 | for (i = 0; i < options->num_local_forwards; i++) | |
249 | xfree(options->local_forwards[i].host); | |
250 | options->num_local_forwards = 0; | |
251 | for (i = 0; i < options->num_remote_forwards; i++) | |
252 | xfree(options->remote_forwards[i].host); | |
253 | options->num_remote_forwards = 0; | |
254 | } | |
255 | ||
aa3378df | 256 | /* |
6be9a5e8 | 257 | * Returns the number of the token pointed to by cp or oBadOption. |
aa3378df | 258 | */ |
8efc0c15 | 259 | |
6ae2364d | 260 | static OpCodes |
5260325f | 261 | parse_token(const char *cp, const char *filename, int linenum) |
8efc0c15 | 262 | { |
1e3b8b07 | 263 | u_int i; |
8efc0c15 | 264 | |
5260325f | 265 | for (i = 0; keywords[i].name; i++) |
aa3378df | 266 | if (strcasecmp(cp, keywords[i].name) == 0) |
5260325f | 267 | return keywords[i].opcode; |
8efc0c15 | 268 | |
b7c70970 | 269 | error("%s: line %d: Bad configuration option: %s", |
270 | filename, linenum, cp); | |
5260325f | 271 | return oBadOption; |
8efc0c15 | 272 | } |
273 | ||
aa3378df | 274 | /* |
275 | * Processes a single option line as used in the configuration files. This | |
276 | * only sets those values that have not already been set. | |
277 | */ | |
d718e75d | 278 | #define WHITESPACE " \t\r\n" |
8efc0c15 | 279 | |
e7c0f9d5 | 280 | int |
281 | process_config_line(Options *options, const char *host, | |
5260325f | 282 | char *line, const char *filename, int linenum, |
283 | int *activep) | |
8efc0c15 | 284 | { |
d718e75d | 285 | char buf[256], *s, **charptr, *endofnumber, *keyword, *arg; |
57112b5a | 286 | int opcode, *intptr, value; |
d718e75d | 287 | size_t len; |
57112b5a | 288 | u_short fwd_port, fwd_host_port; |
3a8aabf0 | 289 | char sfwd_host_port[6]; |
5260325f | 290 | |
204fde99 | 291 | /* Strip trailing whitespace */ |
292 | for(len = strlen(line) - 1; len > 0; len--) { | |
293 | if (strchr(WHITESPACE, line[len]) == NULL) | |
294 | break; | |
295 | line[len] = '\0'; | |
296 | } | |
297 | ||
704b1659 | 298 | s = line; |
299 | /* Get the keyword. (Each line is supposed to begin with a keyword). */ | |
300 | keyword = strdelim(&s); | |
301 | /* Ignore leading whitespace. */ | |
302 | if (*keyword == '\0') | |
303 | keyword = strdelim(&s); | |
42f11eb2 | 304 | if (keyword == NULL || !*keyword || *keyword == '\n' || *keyword == '#') |
5260325f | 305 | return 0; |
306 | ||
089fbbd2 | 307 | opcode = parse_token(keyword, filename, linenum); |
5260325f | 308 | |
309 | switch (opcode) { | |
310 | case oBadOption: | |
aa3378df | 311 | /* don't panic, but count bad options */ |
312 | return -1; | |
5260325f | 313 | /* NOTREACHED */ |
09ab3296 | 314 | case oConnectTimeout: |
315 | intptr = &options->connection_timeout; | |
5d8d32a3 | 316 | parse_time: |
09ab3296 | 317 | arg = strdelim(&s); |
318 | if (!arg || *arg == '\0') | |
319 | fatal("%s line %d: missing time value.", | |
320 | filename, linenum); | |
321 | if ((value = convtime(arg)) == -1) | |
322 | fatal("%s line %d: invalid time value.", | |
323 | filename, linenum); | |
324 | if (*intptr == -1) | |
325 | *intptr = value; | |
326 | break; | |
327 | ||
5260325f | 328 | case oForwardAgent: |
329 | intptr = &options->forward_agent; | |
330 | parse_flag: | |
704b1659 | 331 | arg = strdelim(&s); |
089fbbd2 | 332 | if (!arg || *arg == '\0') |
5260325f | 333 | fatal("%.200s line %d: Missing yes/no argument.", filename, linenum); |
334 | value = 0; /* To avoid compiler warning... */ | |
089fbbd2 | 335 | if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) |
5260325f | 336 | value = 1; |
089fbbd2 | 337 | else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) |
5260325f | 338 | value = 0; |
339 | else | |
340 | fatal("%.200s line %d: Bad yes/no argument.", filename, linenum); | |
341 | if (*activep && *intptr == -1) | |
342 | *intptr = value; | |
343 | break; | |
344 | ||
345 | case oForwardX11: | |
346 | intptr = &options->forward_x11; | |
347 | goto parse_flag; | |
348 | ||
d73a67d7 | 349 | case oForwardX11Trusted: |
350 | intptr = &options->forward_x11_trusted; | |
351 | goto parse_flag; | |
352 | ||
5260325f | 353 | case oGatewayPorts: |
354 | intptr = &options->gateway_ports; | |
355 | goto parse_flag; | |
356 | ||
357 | case oUsePrivilegedPort: | |
358 | intptr = &options->use_privileged_port; | |
359 | goto parse_flag; | |
360 | ||
5260325f | 361 | case oPasswordAuthentication: |
362 | intptr = &options->password_authentication; | |
363 | goto parse_flag; | |
364 | ||
94ec8c6b | 365 | case oKbdInteractiveAuthentication: |
366 | intptr = &options->kbd_interactive_authentication; | |
367 | goto parse_flag; | |
368 | ||
369 | case oKbdInteractiveDevices: | |
370 | charptr = &options->kbd_interactive_devices; | |
371 | goto parse_string; | |
372 | ||
fa08c86b | 373 | case oPubkeyAuthentication: |
374 | intptr = &options->pubkey_authentication; | |
1d1ffb87 | 375 | goto parse_flag; |
376 | ||
5260325f | 377 | case oRSAAuthentication: |
378 | intptr = &options->rsa_authentication; | |
379 | goto parse_flag; | |
380 | ||
381 | case oRhostsRSAAuthentication: | |
382 | intptr = &options->rhosts_rsa_authentication; | |
383 | goto parse_flag; | |
384 | ||
8002af61 | 385 | case oHostbasedAuthentication: |
386 | intptr = &options->hostbased_authentication; | |
387 | goto parse_flag; | |
388 | ||
d464095c | 389 | case oChallengeResponseAuthentication: |
5ba55ada | 390 | intptr = &options->challenge_response_authentication; |
5260325f | 391 | goto parse_flag; |
d0ec7f42 | 392 | |
7364bd04 | 393 | case oGssAuthentication: |
394 | intptr = &options->gss_authentication; | |
395 | goto parse_flag; | |
396 | ||
397 | case oGssDelegateCreds: | |
398 | intptr = &options->gss_deleg_creds; | |
399 | goto parse_flag; | |
400 | ||
5260325f | 401 | case oBatchMode: |
402 | intptr = &options->batch_mode; | |
403 | goto parse_flag; | |
404 | ||
405 | case oCheckHostIP: | |
406 | intptr = &options->check_host_ip; | |
407 | goto parse_flag; | |
408 | ||
21289cd0 | 409 | case oVerifyHostKeyDNS: |
410 | intptr = &options->verify_host_key_dns; | |
0161a13d | 411 | goto parse_yesnoask; |
21289cd0 | 412 | |
5260325f | 413 | case oStrictHostKeyChecking: |
414 | intptr = &options->strict_host_key_checking; | |
0161a13d | 415 | parse_yesnoask: |
704b1659 | 416 | arg = strdelim(&s); |
089fbbd2 | 417 | if (!arg || *arg == '\0') |
c76c8819 | 418 | fatal("%.200s line %d: Missing yes/no/ask argument.", |
184eed6a | 419 | filename, linenum); |
5260325f | 420 | value = 0; /* To avoid compiler warning... */ |
089fbbd2 | 421 | if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) |
5260325f | 422 | value = 1; |
089fbbd2 | 423 | else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) |
5260325f | 424 | value = 0; |
089fbbd2 | 425 | else if (strcmp(arg, "ask") == 0) |
5260325f | 426 | value = 2; |
427 | else | |
428 | fatal("%.200s line %d: Bad yes/no/ask argument.", filename, linenum); | |
429 | if (*activep && *intptr == -1) | |
430 | *intptr = value; | |
431 | break; | |
432 | ||
433 | case oCompression: | |
434 | intptr = &options->compression; | |
435 | goto parse_flag; | |
436 | ||
fd573618 | 437 | case oTCPKeepAlive: |
438 | intptr = &options->tcp_keep_alive; | |
5260325f | 439 | goto parse_flag; |
440 | ||
8bbc048a | 441 | case oNoHostAuthenticationForLocalhost: |
442 | intptr = &options->no_host_authentication_for_localhost; | |
443 | goto parse_flag; | |
444 | ||
5260325f | 445 | case oNumberOfPasswordPrompts: |
446 | intptr = &options->number_of_password_prompts; | |
447 | goto parse_int; | |
448 | ||
449 | case oCompressionLevel: | |
450 | intptr = &options->compression_level; | |
451 | goto parse_int; | |
452 | ||
ffd7b36b | 453 | case oRekeyLimit: |
454 | intptr = &options->rekey_limit; | |
455 | arg = strdelim(&s); | |
456 | if (!arg || *arg == '\0') | |
457 | fatal("%.200s line %d: Missing argument.", filename, linenum); | |
458 | if (arg[0] < '0' || arg[0] > '9') | |
459 | fatal("%.200s line %d: Bad number.", filename, linenum); | |
460 | value = strtol(arg, &endofnumber, 10); | |
461 | if (arg == endofnumber) | |
462 | fatal("%.200s line %d: Bad number.", filename, linenum); | |
463 | switch (toupper(*endofnumber)) { | |
464 | case 'K': | |
465 | value *= 1<<10; | |
466 | break; | |
467 | case 'M': | |
468 | value *= 1<<20; | |
469 | break; | |
470 | case 'G': | |
471 | value *= 1<<30; | |
472 | break; | |
473 | } | |
474 | if (*activep && *intptr == -1) | |
475 | *intptr = value; | |
476 | break; | |
477 | ||
5260325f | 478 | case oIdentityFile: |
704b1659 | 479 | arg = strdelim(&s); |
089fbbd2 | 480 | if (!arg || *arg == '\0') |
5260325f | 481 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
482 | if (*activep) { | |
fa08c86b | 483 | intptr = &options->num_identity_files; |
a306f2dd | 484 | if (*intptr >= SSH_MAX_IDENTITY_FILES) |
5260325f | 485 | fatal("%.200s line %d: Too many identity files specified (max %d).", |
184eed6a | 486 | filename, linenum, SSH_MAX_IDENTITY_FILES); |
fa08c86b | 487 | charptr = &options->identity_files[*intptr]; |
089fbbd2 | 488 | *charptr = xstrdup(arg); |
a306f2dd | 489 | *intptr = *intptr + 1; |
5260325f | 490 | } |
491 | break; | |
492 | ||
fa649821 | 493 | case oXAuthLocation: |
494 | charptr=&options->xauth_location; | |
495 | goto parse_string; | |
496 | ||
5260325f | 497 | case oUser: |
498 | charptr = &options->user; | |
499 | parse_string: | |
704b1659 | 500 | arg = strdelim(&s); |
089fbbd2 | 501 | if (!arg || *arg == '\0') |
5260325f | 502 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
503 | if (*activep && *charptr == NULL) | |
089fbbd2 | 504 | *charptr = xstrdup(arg); |
5260325f | 505 | break; |
506 | ||
507 | case oGlobalKnownHostsFile: | |
508 | charptr = &options->system_hostfile; | |
509 | goto parse_string; | |
510 | ||
511 | case oUserKnownHostsFile: | |
512 | charptr = &options->user_hostfile; | |
513 | goto parse_string; | |
514 | ||
a306f2dd | 515 | case oGlobalKnownHostsFile2: |
516 | charptr = &options->system_hostfile2; | |
517 | goto parse_string; | |
518 | ||
519 | case oUserKnownHostsFile2: | |
520 | charptr = &options->user_hostfile2; | |
521 | goto parse_string; | |
522 | ||
5260325f | 523 | case oHostName: |
524 | charptr = &options->hostname; | |
525 | goto parse_string; | |
526 | ||
8abcdba4 | 527 | case oHostKeyAlias: |
528 | charptr = &options->host_key_alias; | |
529 | goto parse_string; | |
530 | ||
cab80f75 | 531 | case oPreferredAuthentications: |
532 | charptr = &options->preferred_authentications; | |
533 | goto parse_string; | |
534 | ||
3435f5a6 | 535 | case oBindAddress: |
536 | charptr = &options->bind_address; | |
537 | goto parse_string; | |
538 | ||
eea098a3 | 539 | case oSmartcardDevice: |
9ff6f66f | 540 | charptr = &options->smartcard_device; |
541 | goto parse_string; | |
eea098a3 | 542 | |
5260325f | 543 | case oProxyCommand: |
2d9c1828 | 544 | if (s == NULL) |
545 | fatal("%.200s line %d: Missing argument.", filename, linenum); | |
5260325f | 546 | charptr = &options->proxy_command; |
d718e75d | 547 | len = strspn(s, WHITESPACE "="); |
5260325f | 548 | if (*activep && *charptr == NULL) |
d718e75d | 549 | *charptr = xstrdup(s + len); |
5260325f | 550 | return 0; |
551 | ||
552 | case oPort: | |
553 | intptr = &options->port; | |
554 | parse_int: | |
704b1659 | 555 | arg = strdelim(&s); |
089fbbd2 | 556 | if (!arg || *arg == '\0') |
5260325f | 557 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 558 | if (arg[0] < '0' || arg[0] > '9') |
5260325f | 559 | fatal("%.200s line %d: Bad number.", filename, linenum); |
aa3378df | 560 | |
561 | /* Octal, decimal, or hex format? */ | |
089fbbd2 | 562 | value = strtol(arg, &endofnumber, 0); |
563 | if (arg == endofnumber) | |
aa3378df | 564 | fatal("%.200s line %d: Bad number.", filename, linenum); |
5260325f | 565 | if (*activep && *intptr == -1) |
566 | *intptr = value; | |
567 | break; | |
568 | ||
569 | case oConnectionAttempts: | |
570 | intptr = &options->connection_attempts; | |
571 | goto parse_int; | |
572 | ||
573 | case oCipher: | |
574 | intptr = &options->cipher; | |
704b1659 | 575 | arg = strdelim(&s); |
089fbbd2 | 576 | if (!arg || *arg == '\0') |
71276795 | 577 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 578 | value = cipher_number(arg); |
5260325f | 579 | if (value == -1) |
580 | fatal("%.200s line %d: Bad cipher '%s'.", | |
184eed6a | 581 | filename, linenum, arg ? arg : "<NONE>"); |
5260325f | 582 | if (*activep && *intptr == -1) |
583 | *intptr = value; | |
584 | break; | |
585 | ||
a8be9f80 | 586 | case oCiphers: |
704b1659 | 587 | arg = strdelim(&s); |
089fbbd2 | 588 | if (!arg || *arg == '\0') |
71276795 | 589 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 590 | if (!ciphers_valid(arg)) |
d0c832f3 | 591 | fatal("%.200s line %d: Bad SSH2 cipher spec '%s'.", |
184eed6a | 592 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 593 | if (*activep && options->ciphers == NULL) |
089fbbd2 | 594 | options->ciphers = xstrdup(arg); |
a8be9f80 | 595 | break; |
596 | ||
b2552997 | 597 | case oMacs: |
598 | arg = strdelim(&s); | |
599 | if (!arg || *arg == '\0') | |
600 | fatal("%.200s line %d: Missing argument.", filename, linenum); | |
601 | if (!mac_valid(arg)) | |
602 | fatal("%.200s line %d: Bad SSH2 Mac spec '%s'.", | |
184eed6a | 603 | filename, linenum, arg ? arg : "<NONE>"); |
b2552997 | 604 | if (*activep && options->macs == NULL) |
605 | options->macs = xstrdup(arg); | |
606 | break; | |
607 | ||
e961a8f9 | 608 | case oHostKeyAlgorithms: |
609 | arg = strdelim(&s); | |
610 | if (!arg || *arg == '\0') | |
611 | fatal("%.200s line %d: Missing argument.", filename, linenum); | |
612 | if (!key_names_valid2(arg)) | |
613 | fatal("%.200s line %d: Bad protocol 2 host key algorithms '%s'.", | |
184eed6a | 614 | filename, linenum, arg ? arg : "<NONE>"); |
e961a8f9 | 615 | if (*activep && options->hostkeyalgorithms == NULL) |
616 | options->hostkeyalgorithms = xstrdup(arg); | |
617 | break; | |
618 | ||
a8be9f80 | 619 | case oProtocol: |
620 | intptr = &options->protocol; | |
704b1659 | 621 | arg = strdelim(&s); |
089fbbd2 | 622 | if (!arg || *arg == '\0') |
71276795 | 623 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 624 | value = proto_spec(arg); |
a8be9f80 | 625 | if (value == SSH_PROTO_UNKNOWN) |
626 | fatal("%.200s line %d: Bad protocol spec '%s'.", | |
184eed6a | 627 | filename, linenum, arg ? arg : "<NONE>"); |
a8be9f80 | 628 | if (*activep && *intptr == SSH_PROTO_UNKNOWN) |
629 | *intptr = value; | |
630 | break; | |
631 | ||
5260325f | 632 | case oLogLevel: |
633 | intptr = (int *) &options->log_level; | |
704b1659 | 634 | arg = strdelim(&s); |
089fbbd2 | 635 | value = log_level_number(arg); |
5eaf8578 | 636 | if (value == SYSLOG_LEVEL_NOT_SET) |
54b974dc | 637 | fatal("%.200s line %d: unsupported log level '%s'", |
184eed6a | 638 | filename, linenum, arg ? arg : "<NONE>"); |
5eaf8578 | 639 | if (*activep && (LogLevel) *intptr == SYSLOG_LEVEL_NOT_SET) |
5260325f | 640 | *intptr = (LogLevel) value; |
641 | break; | |
642 | ||
5260325f | 643 | case oLocalForward: |
3a8aabf0 | 644 | case oRemoteForward: |
704b1659 | 645 | arg = strdelim(&s); |
089fbbd2 | 646 | if (!arg || *arg == '\0') |
3a8aabf0 | 647 | fatal("%.200s line %d: Missing port argument.", |
648 | filename, linenum); | |
649 | if ((fwd_port = a2port(arg)) == 0) | |
650 | fatal("%.200s line %d: Bad listen port.", | |
651 | filename, linenum); | |
704b1659 | 652 | arg = strdelim(&s); |
089fbbd2 | 653 | if (!arg || *arg == '\0') |
5260325f | 654 | fatal("%.200s line %d: Missing second argument.", |
3a8aabf0 | 655 | filename, linenum); |
656 | if (sscanf(arg, "%255[^:]:%5[0-9]", buf, sfwd_host_port) != 2 && | |
657 | sscanf(arg, "%255[^/]/%5[0-9]", buf, sfwd_host_port) != 2) | |
658 | fatal("%.200s line %d: Bad forwarding specification.", | |
659 | filename, linenum); | |
660 | if ((fwd_host_port = a2port(sfwd_host_port)) == 0) | |
661 | fatal("%.200s line %d: Bad forwarding port.", | |
662 | filename, linenum); | |
663 | if (*activep) { | |
664 | if (opcode == oLocalForward) | |
665 | add_local_forward(options, fwd_port, buf, | |
666 | fwd_host_port); | |
667 | else if (opcode == oRemoteForward) | |
668 | add_remote_forward(options, fwd_port, buf, | |
669 | fwd_host_port); | |
670 | } | |
5260325f | 671 | break; |
672 | ||
0490e609 | 673 | case oDynamicForward: |
674 | arg = strdelim(&s); | |
675 | if (!arg || *arg == '\0') | |
676 | fatal("%.200s line %d: Missing port argument.", | |
677 | filename, linenum); | |
2d2a2c65 | 678 | fwd_port = a2port(arg); |
679 | if (fwd_port == 0) | |
0490e609 | 680 | fatal("%.200s line %d: Badly formatted port number.", |
681 | filename, linenum); | |
14e4a15f | 682 | if (*activep) |
37ba5172 | 683 | add_local_forward(options, fwd_port, "socks", 0); |
8002af61 | 684 | break; |
0490e609 | 685 | |
e1c5bfaf | 686 | case oClearAllForwardings: |
687 | intptr = &options->clear_forwardings; | |
688 | goto parse_flag; | |
689 | ||
5260325f | 690 | case oHost: |
691 | *activep = 0; | |
704b1659 | 692 | while ((arg = strdelim(&s)) != NULL && *arg != '\0') |
089fbbd2 | 693 | if (match_pattern(host, arg)) { |
694 | debug("Applying options for %.100s", arg); | |
5260325f | 695 | *activep = 1; |
696 | break; | |
697 | } | |
704b1659 | 698 | /* Avoid garbage check below, as strdelim is done. */ |
5260325f | 699 | return 0; |
700 | ||
701 | case oEscapeChar: | |
702 | intptr = &options->escape_char; | |
704b1659 | 703 | arg = strdelim(&s); |
089fbbd2 | 704 | if (!arg || *arg == '\0') |
5260325f | 705 | fatal("%.200s line %d: Missing argument.", filename, linenum); |
089fbbd2 | 706 | if (arg[0] == '^' && arg[2] == 0 && |
1e3b8b07 | 707 | (u_char) arg[1] >= 64 && (u_char) arg[1] < 128) |
708 | value = (u_char) arg[1] & 31; | |
089fbbd2 | 709 | else if (strlen(arg) == 1) |
1e3b8b07 | 710 | value = (u_char) arg[0]; |
089fbbd2 | 711 | else if (strcmp(arg, "none") == 0) |
4bf9c10e | 712 | value = SSH_ESCAPECHAR_NONE; |
5260325f | 713 | else { |
714 | fatal("%.200s line %d: Bad escape character.", | |
184eed6a | 715 | filename, linenum); |
5260325f | 716 | /* NOTREACHED */ |
717 | value = 0; /* Avoid compiler warning. */ | |
718 | } | |
719 | if (*activep && *intptr == -1) | |
720 | *intptr = value; | |
721 | break; | |
722 | ||
f811e52a | 723 | case oAddressFamily: |
724 | arg = strdelim(&s); | |
1572b90f | 725 | intptr = &options->address_family; |
f811e52a | 726 | if (strcasecmp(arg, "inet") == 0) |
1572b90f | 727 | value = AF_INET; |
f811e52a | 728 | else if (strcasecmp(arg, "inet6") == 0) |
1572b90f | 729 | value = AF_INET6; |
f811e52a | 730 | else if (strcasecmp(arg, "any") == 0) |
1572b90f | 731 | value = AF_UNSPEC; |
f811e52a | 732 | else |
733 | fatal("Unsupported AddressFamily \"%s\"", arg); | |
1572b90f | 734 | if (*activep && *intptr == -1) |
735 | *intptr = value; | |
f811e52a | 736 | break; |
737 | ||
cc46e2ee | 738 | case oEnableSSHKeysign: |
739 | intptr = &options->enable_ssh_keysign; | |
740 | goto parse_flag; | |
741 | ||
3a065ed0 | 742 | case oIdentitiesOnly: |
743 | intptr = &options->identities_only; | |
744 | goto parse_flag; | |
745 | ||
5d8d32a3 | 746 | case oServerAliveInterval: |
747 | intptr = &options->server_alive_interval; | |
748 | goto parse_time; | |
749 | ||
750 | case oServerAliveCountMax: | |
751 | intptr = &options->server_alive_count_max; | |
752 | goto parse_int; | |
753 | ||
61a2c1da | 754 | case oSendEnv: |
755 | while ((arg = strdelim(&s)) != NULL && *arg != '\0') { | |
756 | if (strchr(arg, '=') != NULL) | |
757 | fatal("%s line %d: Invalid environment name.", | |
758 | filename, linenum); | |
759 | if (options->num_send_env >= MAX_SEND_ENV) | |
760 | fatal("%s line %d: too many send env.", | |
761 | filename, linenum); | |
762 | options->send_env[options->num_send_env++] = | |
763 | xstrdup(arg); | |
764 | } | |
765 | break; | |
766 | ||
80fcb74e | 767 | case oDeprecated: |
4feae93d | 768 | debug("%s line %d: Deprecated option \"%s\"", |
80fcb74e | 769 | filename, linenum, keyword); |
4feae93d | 770 | return 0; |
80fcb74e | 771 | |
a2144546 | 772 | case oUnsupported: |
773 | error("%s line %d: Unsupported option \"%s\"", | |
774 | filename, linenum, keyword); | |
775 | return 0; | |
776 | ||
5260325f | 777 | default: |
778 | fatal("process_config_line: Unimplemented opcode %d", opcode); | |
779 | } | |
780 | ||
781 | /* Check that there is no garbage at end of line. */ | |
42f11eb2 | 782 | if ((arg = strdelim(&s)) != NULL && *arg != '\0') { |
089fbbd2 | 783 | fatal("%.200s line %d: garbage at end of line; \"%.200s\".", |
184eed6a | 784 | filename, linenum, arg); |
089fbbd2 | 785 | } |
5260325f | 786 | return 0; |
8efc0c15 | 787 | } |
788 | ||
789 | ||
aa3378df | 790 | /* |
791 | * Reads the config file and modifies the options accordingly. Options | |
792 | * should already be initialized before this call. This never returns if | |
93111dfa | 793 | * there is an error. If the file does not exist, this returns 0. |
aa3378df | 794 | */ |
8efc0c15 | 795 | |
93111dfa | 796 | int |
9f6cab4b | 797 | read_config_file(const char *filename, const char *host, Options *options, |
798 | int checkperm) | |
8efc0c15 | 799 | { |
5260325f | 800 | FILE *f; |
801 | char line[1024]; | |
802 | int active, linenum; | |
803 | int bad_options = 0; | |
804 | ||
805 | /* Open the file. */ | |
9f6cab4b | 806 | if ((f = fopen(filename, "r")) == NULL) |
93111dfa | 807 | return 0; |
5260325f | 808 | |
9f6cab4b | 809 | if (checkperm) { |
810 | struct stat sb; | |
811 | ||
812 | if (fstat(fileno(f), &sb) == -1) { | |
813 | fatal("fstat %s: %s", filename, strerror(errno)); | |
814 | fclose(f); | |
815 | return (0); | |
816 | } | |
817 | if (((sb.st_uid != 0 && sb.st_uid != getuid()) || | |
818 | (sb.st_mode & 022) != 0)) { | |
819 | fatal("Bad owner or permissions on %s", filename); | |
820 | return 0; | |
821 | } | |
822 | } | |
823 | ||
5260325f | 824 | debug("Reading configuration data %.200s", filename); |
825 | ||
aa3378df | 826 | /* |
827 | * Mark that we are now processing the options. This flag is turned | |
828 | * on/off by Host specifications. | |
829 | */ | |
5260325f | 830 | active = 1; |
831 | linenum = 0; | |
832 | while (fgets(line, sizeof(line), f)) { | |
833 | /* Update line number counter. */ | |
834 | linenum++; | |
835 | if (process_config_line(options, host, line, filename, linenum, &active) != 0) | |
836 | bad_options++; | |
837 | } | |
838 | fclose(f); | |
839 | if (bad_options > 0) | |
54b974dc | 840 | fatal("%s: terminating, %d bad configuration options", |
184eed6a | 841 | filename, bad_options); |
93111dfa | 842 | return 1; |
8efc0c15 | 843 | } |
844 | ||
aa3378df | 845 | /* |
846 | * Initializes options to special values that indicate that they have not yet | |
847 | * been set. Read_config_file will only set options with this value. Options | |
848 | * are processed in the following order: command line, user config file, | |
849 | * system config file. Last, fill_default_options is called. | |
850 | */ | |
8efc0c15 | 851 | |
6ae2364d | 852 | void |
5260325f | 853 | initialize_options(Options * options) |
8efc0c15 | 854 | { |
5260325f | 855 | memset(options, 'X', sizeof(*options)); |
856 | options->forward_agent = -1; | |
857 | options->forward_x11 = -1; | |
d73a67d7 | 858 | options->forward_x11_trusted = -1; |
fa649821 | 859 | options->xauth_location = NULL; |
5260325f | 860 | options->gateway_ports = -1; |
861 | options->use_privileged_port = -1; | |
5260325f | 862 | options->rsa_authentication = -1; |
fa08c86b | 863 | options->pubkey_authentication = -1; |
5ba55ada | 864 | options->challenge_response_authentication = -1; |
7364bd04 | 865 | options->gss_authentication = -1; |
866 | options->gss_deleg_creds = -1; | |
5260325f | 867 | options->password_authentication = -1; |
94ec8c6b | 868 | options->kbd_interactive_authentication = -1; |
869 | options->kbd_interactive_devices = NULL; | |
5260325f | 870 | options->rhosts_rsa_authentication = -1; |
8002af61 | 871 | options->hostbased_authentication = -1; |
5260325f | 872 | options->batch_mode = -1; |
873 | options->check_host_ip = -1; | |
874 | options->strict_host_key_checking = -1; | |
875 | options->compression = -1; | |
fd573618 | 876 | options->tcp_keep_alive = -1; |
5260325f | 877 | options->compression_level = -1; |
878 | options->port = -1; | |
1572b90f | 879 | options->address_family = -1; |
5260325f | 880 | options->connection_attempts = -1; |
09ab3296 | 881 | options->connection_timeout = -1; |
5260325f | 882 | options->number_of_password_prompts = -1; |
883 | options->cipher = -1; | |
a8be9f80 | 884 | options->ciphers = NULL; |
b2552997 | 885 | options->macs = NULL; |
e961a8f9 | 886 | options->hostkeyalgorithms = NULL; |
a8be9f80 | 887 | options->protocol = SSH_PROTO_UNKNOWN; |
5260325f | 888 | options->num_identity_files = 0; |
889 | options->hostname = NULL; | |
8abcdba4 | 890 | options->host_key_alias = NULL; |
5260325f | 891 | options->proxy_command = NULL; |
892 | options->user = NULL; | |
893 | options->escape_char = -1; | |
894 | options->system_hostfile = NULL; | |
895 | options->user_hostfile = NULL; | |
a306f2dd | 896 | options->system_hostfile2 = NULL; |
897 | options->user_hostfile2 = NULL; | |
5260325f | 898 | options->num_local_forwards = 0; |
899 | options->num_remote_forwards = 0; | |
e1c5bfaf | 900 | options->clear_forwardings = -1; |
5eaf8578 | 901 | options->log_level = SYSLOG_LEVEL_NOT_SET; |
cab80f75 | 902 | options->preferred_authentications = NULL; |
3435f5a6 | 903 | options->bind_address = NULL; |
9ff6f66f | 904 | options->smartcard_device = NULL; |
cc46e2ee | 905 | options->enable_ssh_keysign = - 1; |
8bbc048a | 906 | options->no_host_authentication_for_localhost = - 1; |
3a065ed0 | 907 | options->identities_only = - 1; |
ffd7b36b | 908 | options->rekey_limit = - 1; |
21289cd0 | 909 | options->verify_host_key_dns = -1; |
5d8d32a3 | 910 | options->server_alive_interval = -1; |
911 | options->server_alive_count_max = -1; | |
61a2c1da | 912 | options->num_send_env = 0; |
8efc0c15 | 913 | } |
914 | ||
aa3378df | 915 | /* |
916 | * Called after processing other sources of option data, this fills those | |
917 | * options for which no value has been specified with their default values. | |
918 | */ | |
8efc0c15 | 919 | |
6ae2364d | 920 | void |
5260325f | 921 | fill_default_options(Options * options) |
8efc0c15 | 922 | { |
d2c46e77 | 923 | int len; |
924 | ||
5260325f | 925 | if (options->forward_agent == -1) |
71276795 | 926 | options->forward_agent = 0; |
5260325f | 927 | if (options->forward_x11 == -1) |
c8d54615 | 928 | options->forward_x11 = 0; |
d73a67d7 | 929 | if (options->forward_x11_trusted == -1) |
930 | options->forward_x11_trusted = 0; | |
fa649821 | 931 | if (options->xauth_location == NULL) |
fd9ede94 | 932 | options->xauth_location = _PATH_XAUTH; |
5260325f | 933 | if (options->gateway_ports == -1) |
934 | options->gateway_ports = 0; | |
935 | if (options->use_privileged_port == -1) | |
d5ebca2b | 936 | options->use_privileged_port = 0; |
5260325f | 937 | if (options->rsa_authentication == -1) |
938 | options->rsa_authentication = 1; | |
fa08c86b | 939 | if (options->pubkey_authentication == -1) |
940 | options->pubkey_authentication = 1; | |
5ba55ada | 941 | if (options->challenge_response_authentication == -1) |
10a2cbef | 942 | options->challenge_response_authentication = 1; |
7364bd04 | 943 | if (options->gss_authentication == -1) |
2ecb78df | 944 | options->gss_authentication = 0; |
7364bd04 | 945 | if (options->gss_deleg_creds == -1) |
946 | options->gss_deleg_creds = 0; | |
5260325f | 947 | if (options->password_authentication == -1) |
948 | options->password_authentication = 1; | |
94ec8c6b | 949 | if (options->kbd_interactive_authentication == -1) |
d464095c | 950 | options->kbd_interactive_authentication = 1; |
5260325f | 951 | if (options->rhosts_rsa_authentication == -1) |
4b3d23b4 | 952 | options->rhosts_rsa_authentication = 0; |
8002af61 | 953 | if (options->hostbased_authentication == -1) |
954 | options->hostbased_authentication = 0; | |
5260325f | 955 | if (options->batch_mode == -1) |
956 | options->batch_mode = 0; | |
957 | if (options->check_host_ip == -1) | |
958 | options->check_host_ip = 1; | |
959 | if (options->strict_host_key_checking == -1) | |
960 | options->strict_host_key_checking = 2; /* 2 is default */ | |
961 | if (options->compression == -1) | |
962 | options->compression = 0; | |
fd573618 | 963 | if (options->tcp_keep_alive == -1) |
964 | options->tcp_keep_alive = 1; | |
5260325f | 965 | if (options->compression_level == -1) |
966 | options->compression_level = 6; | |
967 | if (options->port == -1) | |
968 | options->port = 0; /* Filled in ssh_connect. */ | |
1572b90f | 969 | if (options->address_family == -1) |
970 | options->address_family = AF_UNSPEC; | |
5260325f | 971 | if (options->connection_attempts == -1) |
ce773142 | 972 | options->connection_attempts = 1; |
5260325f | 973 | if (options->number_of_password_prompts == -1) |
974 | options->number_of_password_prompts = 3; | |
975 | /* Selected in ssh_login(). */ | |
976 | if (options->cipher == -1) | |
977 | options->cipher = SSH_CIPHER_NOT_SET; | |
d0c832f3 | 978 | /* options->ciphers, default set in myproposals.h */ |
b2552997 | 979 | /* options->macs, default set in myproposals.h */ |
e961a8f9 | 980 | /* options->hostkeyalgorithms, default set in myproposals.h */ |
a8be9f80 | 981 | if (options->protocol == SSH_PROTO_UNKNOWN) |
3e587cc3 | 982 | options->protocol = SSH_PROTO_1|SSH_PROTO_2; |
5260325f | 983 | if (options->num_identity_files == 0) { |
fa08c86b | 984 | if (options->protocol & SSH_PROTO_1) { |
d2c46e77 | 985 | len = 2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1; |
fa08c86b | 986 | options->identity_files[options->num_identity_files] = |
d2c46e77 | 987 | xmalloc(len); |
988 | snprintf(options->identity_files[options->num_identity_files++], | |
989 | len, "~/%.100s", _PATH_SSH_CLIENT_IDENTITY); | |
fa08c86b | 990 | } |
991 | if (options->protocol & SSH_PROTO_2) { | |
ec63b02d | 992 | len = 2 + strlen(_PATH_SSH_CLIENT_ID_RSA) + 1; |
993 | options->identity_files[options->num_identity_files] = | |
994 | xmalloc(len); | |
995 | snprintf(options->identity_files[options->num_identity_files++], | |
996 | len, "~/%.100s", _PATH_SSH_CLIENT_ID_RSA); | |
997 | ||
d2c46e77 | 998 | len = 2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1; |
fa08c86b | 999 | options->identity_files[options->num_identity_files] = |
d2c46e77 | 1000 | xmalloc(len); |
1001 | snprintf(options->identity_files[options->num_identity_files++], | |
1002 | len, "~/%.100s", _PATH_SSH_CLIENT_ID_DSA); | |
fa08c86b | 1003 | } |
a306f2dd | 1004 | } |
5260325f | 1005 | if (options->escape_char == -1) |
1006 | options->escape_char = '~'; | |
1007 | if (options->system_hostfile == NULL) | |
42f11eb2 | 1008 | options->system_hostfile = _PATH_SSH_SYSTEM_HOSTFILE; |
5260325f | 1009 | if (options->user_hostfile == NULL) |
42f11eb2 | 1010 | options->user_hostfile = _PATH_SSH_USER_HOSTFILE; |
a306f2dd | 1011 | if (options->system_hostfile2 == NULL) |
42f11eb2 | 1012 | options->system_hostfile2 = _PATH_SSH_SYSTEM_HOSTFILE2; |
a306f2dd | 1013 | if (options->user_hostfile2 == NULL) |
42f11eb2 | 1014 | options->user_hostfile2 = _PATH_SSH_USER_HOSTFILE2; |
5eaf8578 | 1015 | if (options->log_level == SYSLOG_LEVEL_NOT_SET) |
59c97189 | 1016 | options->log_level = SYSLOG_LEVEL_INFO; |
e1c5bfaf | 1017 | if (options->clear_forwardings == 1) |
1018 | clear_forwardings(options); | |
8bbc048a | 1019 | if (options->no_host_authentication_for_localhost == - 1) |
1020 | options->no_host_authentication_for_localhost = 0; | |
3a065ed0 | 1021 | if (options->identities_only == -1) |
1022 | options->identities_only = 0; | |
cc46e2ee | 1023 | if (options->enable_ssh_keysign == -1) |
1024 | options->enable_ssh_keysign = 0; | |
ffd7b36b | 1025 | if (options->rekey_limit == -1) |
1026 | options->rekey_limit = 0; | |
21289cd0 | 1027 | if (options->verify_host_key_dns == -1) |
1028 | options->verify_host_key_dns = 0; | |
5d8d32a3 | 1029 | if (options->server_alive_interval == -1) |
1030 | options->server_alive_interval = 0; | |
1031 | if (options->server_alive_count_max == -1) | |
1032 | options->server_alive_count_max = 3; | |
5260325f | 1033 | /* options->proxy_command should not be set by default */ |
1034 | /* options->user will be set in the main program if appropriate */ | |
1035 | /* options->hostname will be set in the main program if appropriate */ | |
8abcdba4 | 1036 | /* options->host_key_alias should not be set by default */ |
cab80f75 | 1037 | /* options->preferred_authentications will be set in ssh */ |
8efc0c15 | 1038 | } |