version 1.31.2.5, 2001/03/21 18:52:57 |
version 1.32, 2000/05/22 18:42:01 |
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/* |
/* |
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* |
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* readconf.c |
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* |
* Author: Tatu Ylonen <ylo@cs.hut.fi> |
* Author: Tatu Ylonen <ylo@cs.hut.fi> |
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* |
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland |
* All rights reserved |
* All rights reserved |
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* |
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* Created: Sat Apr 22 00:03:10 1995 ylo |
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* |
* Functions for reading the configuration files. |
* Functions for reading the configuration files. |
* |
* |
* As far as I am concerned, the code I have written for this software |
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* can be used freely for any purpose. Any derived versions of this |
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* software must be clearly marked as such, and if the derived work is |
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* incompatible with the protocol description in the RFC file, it must be |
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* called by a name other than "ssh" or "Secure Shell". |
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*/ |
*/ |
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#include "includes.h" |
#include "includes.h" |
RCSID("$OpenBSD$"); |
RCSID("$Id$"); |
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#include "ssh.h" |
#include "ssh.h" |
#include "xmalloc.h" |
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#include "compat.h" |
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#include "cipher.h" |
#include "cipher.h" |
#include "pathnames.h" |
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#include "log.h" |
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#include "readconf.h" |
#include "readconf.h" |
#include "match.h" |
#include "match.h" |
#include "misc.h" |
#include "xmalloc.h" |
#include "kex.h" |
#include "compat.h" |
#include "mac.h" |
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/* Format of the configuration file: |
/* Format of the configuration file: |
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# Defaults for various options |
# Defaults for various options |
Host * |
Host * |
ForwardAgent no |
ForwardAgent no |
ForwardX11 no |
ForwardX11 yes |
RhostsAuthentication yes |
RhostsAuthentication yes |
PasswordAuthentication yes |
PasswordAuthentication yes |
RSAAuthentication yes |
RSAAuthentication yes |
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|
oBadOption, |
oBadOption, |
oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication, |
oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication, |
oPasswordAuthentication, oRSAAuthentication, oFallBackToRsh, oUseRsh, |
oPasswordAuthentication, oRSAAuthentication, oFallBackToRsh, oUseRsh, |
oChallengeResponseAuthentication, oXAuthLocation, |
oSkeyAuthentication, |
#ifdef KRB4 |
#ifdef KRB4 |
oKerberosAuthentication, |
oKerberosAuthentication, |
#endif /* KRB4 */ |
#endif /* KRB4 */ |
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oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, |
oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, |
oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts, |
oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts, |
oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression, |
oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression, |
oCompressionLevel, oKeepAlives, oNumberOfPasswordPrompts, |
oCompressionLevel, oKeepAlives, oNumberOfPasswordPrompts, oTISAuthentication, |
oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol, oMacs, |
oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol, oIdentityFile2, |
oGlobalKnownHostsFile2, oUserKnownHostsFile2, oPubkeyAuthentication, |
oGlobalKnownHostsFile2, oUserKnownHostsFile2, oDSAAuthentication |
oKbdInteractiveAuthentication, oKbdInteractiveDevices, oHostKeyAlias, |
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oPreferredAuthentications |
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} OpCodes; |
} OpCodes; |
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/* Textual representations of the tokens. */ |
/* Textual representations of the tokens. */ |
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} keywords[] = { |
} keywords[] = { |
{ "forwardagent", oForwardAgent }, |
{ "forwardagent", oForwardAgent }, |
{ "forwardx11", oForwardX11 }, |
{ "forwardx11", oForwardX11 }, |
{ "xauthlocation", oXAuthLocation }, |
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{ "gatewayports", oGatewayPorts }, |
{ "gatewayports", oGatewayPorts }, |
{ "useprivilegedport", oUsePrivilegedPort }, |
{ "useprivilegedport", oUsePrivilegedPort }, |
{ "rhostsauthentication", oRhostsAuthentication }, |
{ "rhostsauthentication", oRhostsAuthentication }, |
{ "passwordauthentication", oPasswordAuthentication }, |
{ "passwordauthentication", oPasswordAuthentication }, |
{ "kbdinteractiveauthentication", oKbdInteractiveAuthentication }, |
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{ "kbdinteractivedevices", oKbdInteractiveDevices }, |
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{ "rsaauthentication", oRSAAuthentication }, |
{ "rsaauthentication", oRSAAuthentication }, |
{ "pubkeyauthentication", oPubkeyAuthentication }, |
{ "dsaauthentication", oDSAAuthentication }, |
{ "dsaauthentication", oPubkeyAuthentication }, /* alias */ |
{ "skeyauthentication", oSkeyAuthentication }, |
{ "challengeresponseauthentication", oChallengeResponseAuthentication }, |
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{ "skeyauthentication", oChallengeResponseAuthentication }, /* alias */ |
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{ "tisauthentication", oChallengeResponseAuthentication }, /* alias */ |
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#ifdef KRB4 |
#ifdef KRB4 |
{ "kerberosauthentication", oKerberosAuthentication }, |
{ "kerberosauthentication", oKerberosAuthentication }, |
#endif /* KRB4 */ |
#endif /* KRB4 */ |
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{ "fallbacktorsh", oFallBackToRsh }, |
{ "fallbacktorsh", oFallBackToRsh }, |
{ "usersh", oUseRsh }, |
{ "usersh", oUseRsh }, |
{ "identityfile", oIdentityFile }, |
{ "identityfile", oIdentityFile }, |
{ "identityfile2", oIdentityFile }, /* alias */ |
{ "identityfile2", oIdentityFile2 }, |
{ "hostname", oHostName }, |
{ "hostname", oHostName }, |
{ "hostkeyalias", oHostKeyAlias }, |
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{ "proxycommand", oProxyCommand }, |
{ "proxycommand", oProxyCommand }, |
{ "port", oPort }, |
{ "port", oPort }, |
{ "cipher", oCipher }, |
{ "cipher", oCipher }, |
{ "ciphers", oCiphers }, |
{ "ciphers", oCiphers }, |
{ "macs", oMacs }, |
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{ "protocol", oProtocol }, |
{ "protocol", oProtocol }, |
{ "remoteforward", oRemoteForward }, |
{ "remoteforward", oRemoteForward }, |
{ "localforward", oLocalForward }, |
{ "localforward", oLocalForward }, |
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{ "compressionlevel", oCompressionLevel }, |
{ "compressionlevel", oCompressionLevel }, |
{ "keepalive", oKeepAlives }, |
{ "keepalive", oKeepAlives }, |
{ "numberofpasswordprompts", oNumberOfPasswordPrompts }, |
{ "numberofpasswordprompts", oNumberOfPasswordPrompts }, |
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{ "tisauthentication", oTISAuthentication }, |
{ "loglevel", oLogLevel }, |
{ "loglevel", oLogLevel }, |
{ "preferredauthentications", oPreferredAuthentications }, |
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{ NULL, 0 } |
{ NULL, 0 } |
}; |
}; |
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/* Characters considered whitespace in strtok calls. */ |
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#define WHITESPACE " \t\r\n" |
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/* |
/* |
* Adds a local TCP/IP port forward to options. Never returns if there is an |
* Adds a local TCP/IP port forward to options. Never returns if there is an |
* error. |
* error. |
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Forward *fwd; |
Forward *fwd; |
extern uid_t original_real_uid; |
extern uid_t original_real_uid; |
if (port < IPPORT_RESERVED && original_real_uid != 0) |
if (port < IPPORT_RESERVED && original_real_uid != 0) |
fatal("Privileged ports can only be forwarded by root."); |
fatal("Privileged ports can only be forwarded by root.\n"); |
if (options->num_local_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION) |
if (options->num_local_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION) |
fatal("Too many local forwards (max %d).", SSH_MAX_FORWARDS_PER_DIRECTION); |
fatal("Too many local forwards (max %d).", SSH_MAX_FORWARDS_PER_DIRECTION); |
fwd = &options->local_forwards[options->num_local_forwards++]; |
fwd = &options->local_forwards[options->num_local_forwards++]; |
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static OpCodes |
static OpCodes |
parse_token(const char *cp, const char *filename, int linenum) |
parse_token(const char *cp, const char *filename, int linenum) |
{ |
{ |
u_int i; |
unsigned int i; |
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for (i = 0; keywords[i].name; i++) |
for (i = 0; keywords[i].name; i++) |
if (strcasecmp(cp, keywords[i].name) == 0) |
if (strcasecmp(cp, keywords[i].name) == 0) |
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char *line, const char *filename, int linenum, |
char *line, const char *filename, int linenum, |
int *activep) |
int *activep) |
{ |
{ |
char buf[256], *s, *string, **charptr, *endofnumber, *keyword, *arg; |
char buf[256], *cp, *string, **charptr, *cp2; |
int opcode, *intptr, value; |
int opcode, *intptr, value; |
u_short fwd_port, fwd_host_port; |
u_short fwd_port, fwd_host_port; |
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s = line; |
/* Skip leading whitespace. */ |
/* Get the keyword. (Each line is supposed to begin with a keyword). */ |
cp = line + strspn(line, WHITESPACE); |
keyword = strdelim(&s); |
if (!*cp || *cp == '\n' || *cp == '#') |
/* Ignore leading whitespace. */ |
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if (*keyword == '\0') |
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keyword = strdelim(&s); |
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if (keyword == NULL || !*keyword || *keyword == '\n' || *keyword == '#') |
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return 0; |
return 0; |
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opcode = parse_token(keyword, filename, linenum); |
/* Get the keyword. (Each line is supposed to begin with a keyword). */ |
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cp = strtok(cp, WHITESPACE); |
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opcode = parse_token(cp, filename, linenum); |
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switch (opcode) { |
switch (opcode) { |
case oBadOption: |
case oBadOption: |
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case oForwardAgent: |
case oForwardAgent: |
intptr = &options->forward_agent; |
intptr = &options->forward_agent; |
parse_flag: |
parse_flag: |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing yes/no argument.", filename, linenum); |
fatal("%.200s line %d: Missing yes/no argument.", filename, linenum); |
value = 0; /* To avoid compiler warning... */ |
value = 0; /* To avoid compiler warning... */ |
if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) |
if (strcmp(cp, "yes") == 0 || strcmp(cp, "true") == 0) |
value = 1; |
value = 1; |
else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) |
else if (strcmp(cp, "no") == 0 || strcmp(cp, "false") == 0) |
value = 0; |
value = 0; |
else |
else |
fatal("%.200s line %d: Bad yes/no argument.", filename, linenum); |
fatal("%.200s line %d: Bad yes/no argument.", filename, linenum); |
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intptr = &options->password_authentication; |
intptr = &options->password_authentication; |
goto parse_flag; |
goto parse_flag; |
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case oKbdInteractiveAuthentication: |
case oDSAAuthentication: |
intptr = &options->kbd_interactive_authentication; |
intptr = &options->dsa_authentication; |
goto parse_flag; |
goto parse_flag; |
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case oKbdInteractiveDevices: |
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charptr = &options->kbd_interactive_devices; |
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goto parse_string; |
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case oPubkeyAuthentication: |
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intptr = &options->pubkey_authentication; |
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goto parse_flag; |
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case oRSAAuthentication: |
case oRSAAuthentication: |
intptr = &options->rsa_authentication; |
intptr = &options->rsa_authentication; |
goto parse_flag; |
goto parse_flag; |
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intptr = &options->rhosts_rsa_authentication; |
intptr = &options->rhosts_rsa_authentication; |
goto parse_flag; |
goto parse_flag; |
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case oChallengeResponseAuthentication: |
case oTISAuthentication: |
intptr = &options->challenge_reponse_authentication; |
/* fallthrough, there is no difference on the client side */ |
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case oSkeyAuthentication: |
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intptr = &options->skey_authentication; |
goto parse_flag; |
goto parse_flag; |
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#ifdef KRB4 |
#ifdef KRB4 |
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case oStrictHostKeyChecking: |
case oStrictHostKeyChecking: |
intptr = &options->strict_host_key_checking; |
intptr = &options->strict_host_key_checking; |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing yes/no/ask argument.", |
fatal("%.200s line %d: Missing yes/no argument.", |
filename, linenum); |
filename, linenum); |
value = 0; /* To avoid compiler warning... */ |
value = 0; /* To avoid compiler warning... */ |
if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0) |
if (strcmp(cp, "yes") == 0 || strcmp(cp, "true") == 0) |
value = 1; |
value = 1; |
else if (strcmp(arg, "no") == 0 || strcmp(arg, "false") == 0) |
else if (strcmp(cp, "no") == 0 || strcmp(cp, "false") == 0) |
value = 0; |
value = 0; |
else if (strcmp(arg, "ask") == 0) |
else if (strcmp(cp, "ask") == 0) |
value = 2; |
value = 2; |
else |
else |
fatal("%.200s line %d: Bad yes/no/ask argument.", filename, linenum); |
fatal("%.200s line %d: Bad yes/no/ask argument.", filename, linenum); |
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goto parse_int; |
goto parse_int; |
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case oIdentityFile: |
case oIdentityFile: |
arg = strdelim(&s); |
case oIdentityFile2: |
if (!arg || *arg == '\0') |
cp = strtok(NULL, WHITESPACE); |
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if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (*activep) { |
if (*activep) { |
intptr = &options->num_identity_files; |
intptr = (opcode == oIdentityFile) ? |
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&options->num_identity_files : |
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&options->num_identity_files2; |
if (*intptr >= SSH_MAX_IDENTITY_FILES) |
if (*intptr >= SSH_MAX_IDENTITY_FILES) |
fatal("%.200s line %d: Too many identity files specified (max %d).", |
fatal("%.200s line %d: Too many identity files specified (max %d).", |
filename, linenum, SSH_MAX_IDENTITY_FILES); |
filename, linenum, SSH_MAX_IDENTITY_FILES); |
charptr = &options->identity_files[*intptr]; |
charptr = (opcode == oIdentityFile) ? |
*charptr = xstrdup(arg); |
&options->identity_files[*intptr] : |
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&options->identity_files2[*intptr]; |
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*charptr = xstrdup(cp); |
*intptr = *intptr + 1; |
*intptr = *intptr + 1; |
} |
} |
break; |
break; |
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case oXAuthLocation: |
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charptr=&options->xauth_location; |
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goto parse_string; |
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case oUser: |
case oUser: |
charptr = &options->user; |
charptr = &options->user; |
parse_string: |
parse_string: |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (*activep && *charptr == NULL) |
if (*activep && *charptr == NULL) |
*charptr = xstrdup(arg); |
*charptr = xstrdup(cp); |
break; |
break; |
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case oGlobalKnownHostsFile: |
case oGlobalKnownHostsFile: |
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charptr = &options->hostname; |
charptr = &options->hostname; |
goto parse_string; |
goto parse_string; |
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case oHostKeyAlias: |
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charptr = &options->host_key_alias; |
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goto parse_string; |
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case oPreferredAuthentications: |
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charptr = &options->preferred_authentications; |
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goto parse_string; |
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case oProxyCommand: |
case oProxyCommand: |
charptr = &options->proxy_command; |
charptr = &options->proxy_command; |
string = xstrdup(""); |
string = xstrdup(""); |
while ((arg = strdelim(&s)) != NULL && *arg != '\0') { |
while ((cp = strtok(NULL, WHITESPACE)) != NULL) { |
string = xrealloc(string, strlen(string) + strlen(arg) + 2); |
string = xrealloc(string, strlen(string) + strlen(cp) + 2); |
strcat(string, " "); |
strcat(string, " "); |
strcat(string, arg); |
strcat(string, cp); |
} |
} |
if (*activep && *charptr == NULL) |
if (*activep && *charptr == NULL) |
*charptr = string; |
*charptr = string; |
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case oPort: |
case oPort: |
intptr = &options->port; |
intptr = &options->port; |
parse_int: |
parse_int: |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (arg[0] < '0' || arg[0] > '9') |
if (cp[0] < '0' || cp[0] > '9') |
fatal("%.200s line %d: Bad number.", filename, linenum); |
fatal("%.200s line %d: Bad number.", filename, linenum); |
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/* Octal, decimal, or hex format? */ |
/* Octal, decimal, or hex format? */ |
value = strtol(arg, &endofnumber, 0); |
value = strtol(cp, &cp2, 0); |
if (arg == endofnumber) |
if (cp == cp2) |
fatal("%.200s line %d: Bad number.", filename, linenum); |
fatal("%.200s line %d: Bad number.", filename, linenum); |
if (*activep && *intptr == -1) |
if (*activep && *intptr == -1) |
*intptr = value; |
*intptr = value; |
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case oCipher: |
case oCipher: |
intptr = &options->cipher; |
intptr = &options->cipher; |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
value = cipher_number(arg); |
value = cipher_number(cp); |
if (value == -1) |
if (value == -1) |
fatal("%.200s line %d: Bad cipher '%s'.", |
fatal("%.200s line %d: Bad cipher '%s'.", |
filename, linenum, arg ? arg : "<NONE>"); |
filename, linenum, cp ? cp : "<NONE>"); |
if (*activep && *intptr == -1) |
if (*activep && *intptr == -1) |
*intptr = value; |
*intptr = value; |
break; |
break; |
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case oCiphers: |
case oCiphers: |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (!ciphers_valid(arg)) |
if (!ciphers_valid(cp)) |
fatal("%.200s line %d: Bad SSH2 cipher spec '%s'.", |
fatal("%.200s line %d: Bad SSH2 cipher spec '%s'.", |
filename, linenum, arg ? arg : "<NONE>"); |
filename, linenum, cp ? cp : "<NONE>"); |
if (*activep && options->ciphers == NULL) |
if (*activep && options->ciphers == NULL) |
options->ciphers = xstrdup(arg); |
options->ciphers = xstrdup(cp); |
break; |
break; |
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case oMacs: |
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arg = strdelim(&s); |
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if (!arg || *arg == '\0') |
|
fatal("%.200s line %d: Missing argument.", filename, linenum); |
|
if (!mac_valid(arg)) |
|
fatal("%.200s line %d: Bad SSH2 Mac spec '%s'.", |
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filename, linenum, arg ? arg : "<NONE>"); |
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if (*activep && options->macs == NULL) |
|
options->macs = xstrdup(arg); |
|
break; |
|
|
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case oProtocol: |
case oProtocol: |
intptr = &options->protocol; |
intptr = &options->protocol; |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
value = proto_spec(arg); |
value = proto_spec(cp); |
if (value == SSH_PROTO_UNKNOWN) |
if (value == SSH_PROTO_UNKNOWN) |
fatal("%.200s line %d: Bad protocol spec '%s'.", |
fatal("%.200s line %d: Bad protocol spec '%s'.", |
filename, linenum, arg ? arg : "<NONE>"); |
filename, linenum, cp ? cp : "<NONE>"); |
if (*activep && *intptr == SSH_PROTO_UNKNOWN) |
if (*activep && *intptr == SSH_PROTO_UNKNOWN) |
*intptr = value; |
*intptr = value; |
break; |
break; |
|
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case oLogLevel: |
case oLogLevel: |
intptr = (int *) &options->log_level; |
intptr = (int *) &options->log_level; |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
value = log_level_number(arg); |
value = log_level_number(cp); |
if (value == (LogLevel) - 1) |
if (value == (LogLevel) - 1) |
fatal("%.200s line %d: unsupported log level '%s'", |
fatal("%.200s line %d: unsupported log level '%s'\n", |
filename, linenum, arg ? arg : "<NONE>"); |
filename, linenum, cp ? cp : "<NONE>"); |
if (*activep && (LogLevel) * intptr == -1) |
if (*activep && (LogLevel) * intptr == -1) |
*intptr = (LogLevel) value; |
*intptr = (LogLevel) value; |
break; |
break; |
|
|
case oRemoteForward: |
case oRemoteForward: |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (arg[0] < '0' || arg[0] > '9') |
if (cp[0] < '0' || cp[0] > '9') |
fatal("%.200s line %d: Badly formatted port number.", |
fatal("%.200s line %d: Badly formatted port number.", |
filename, linenum); |
filename, linenum); |
fwd_port = atoi(arg); |
fwd_port = atoi(cp); |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing second argument.", |
fatal("%.200s line %d: Missing second argument.", |
filename, linenum); |
filename, linenum); |
if (sscanf(arg, "%255[^:]:%hu", buf, &fwd_host_port) != 2) |
if (sscanf(cp, "%255[^:]:%hu", buf, &fwd_host_port) != 2) |
fatal("%.200s line %d: Badly formatted host:port.", |
fatal("%.200s line %d: Badly formatted host:port.", |
filename, linenum); |
filename, linenum); |
if (*activep) |
if (*activep) |
|
|
break; |
break; |
|
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case oLocalForward: |
case oLocalForward: |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (arg[0] < '0' || arg[0] > '9') |
if (cp[0] < '0' || cp[0] > '9') |
fatal("%.200s line %d: Badly formatted port number.", |
fatal("%.200s line %d: Badly formatted port number.", |
filename, linenum); |
filename, linenum); |
fwd_port = atoi(arg); |
fwd_port = atoi(cp); |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing second argument.", |
fatal("%.200s line %d: Missing second argument.", |
filename, linenum); |
filename, linenum); |
if (sscanf(arg, "%255[^:]:%hu", buf, &fwd_host_port) != 2) |
if (sscanf(cp, "%255[^:]:%hu", buf, &fwd_host_port) != 2) |
fatal("%.200s line %d: Badly formatted host:port.", |
fatal("%.200s line %d: Badly formatted host:port.", |
filename, linenum); |
filename, linenum); |
if (*activep) |
if (*activep) |
|
|
|
|
case oHost: |
case oHost: |
*activep = 0; |
*activep = 0; |
while ((arg = strdelim(&s)) != NULL && *arg != '\0') |
while ((cp = strtok(NULL, WHITESPACE)) != NULL) |
if (match_pattern(host, arg)) { |
if (match_pattern(host, cp)) { |
debug("Applying options for %.100s", arg); |
debug("Applying options for %.100s", cp); |
*activep = 1; |
*activep = 1; |
break; |
break; |
} |
} |
/* Avoid garbage check below, as strdelim is done. */ |
/* Avoid garbage check below, as strtok already returned NULL. */ |
return 0; |
return 0; |
|
|
case oEscapeChar: |
case oEscapeChar: |
intptr = &options->escape_char; |
intptr = &options->escape_char; |
arg = strdelim(&s); |
cp = strtok(NULL, WHITESPACE); |
if (!arg || *arg == '\0') |
if (!cp) |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
fatal("%.200s line %d: Missing argument.", filename, linenum); |
if (arg[0] == '^' && arg[2] == 0 && |
if (cp[0] == '^' && cp[2] == 0 && |
(u_char) arg[1] >= 64 && (u_char) arg[1] < 128) |
(unsigned char) cp[1] >= 64 && (unsigned char) cp[1] < 128) |
value = (u_char) arg[1] & 31; |
value = (unsigned char) cp[1] & 31; |
else if (strlen(arg) == 1) |
else if (strlen(cp) == 1) |
value = (u_char) arg[0]; |
value = (unsigned char) cp[0]; |
else if (strcmp(arg, "none") == 0) |
else if (strcmp(cp, "none") == 0) |
value = -2; |
value = -2; |
else { |
else { |
fatal("%.200s line %d: Bad escape character.", |
fatal("%.200s line %d: Bad escape character.", |
|
|
} |
} |
|
|
/* Check that there is no garbage at end of line. */ |
/* Check that there is no garbage at end of line. */ |
if ((arg = strdelim(&s)) != NULL && *arg != '\0') { |
if (strtok(NULL, WHITESPACE) != NULL) |
fatal("%.200s line %d: garbage at end of line; \"%.200s\".", |
fatal("%.200s line %d: garbage at end of line.", |
filename, linenum, arg); |
filename, linenum); |
} |
|
return 0; |
return 0; |
} |
} |
|
|
|
|
} |
} |
fclose(f); |
fclose(f); |
if (bad_options > 0) |
if (bad_options > 0) |
fatal("%s: terminating, %d bad configuration options", |
fatal("%s: terminating, %d bad configuration options\n", |
filename, bad_options); |
filename, bad_options); |
} |
} |
|
|
|
|
memset(options, 'X', sizeof(*options)); |
memset(options, 'X', sizeof(*options)); |
options->forward_agent = -1; |
options->forward_agent = -1; |
options->forward_x11 = -1; |
options->forward_x11 = -1; |
options->xauth_location = NULL; |
|
options->gateway_ports = -1; |
options->gateway_ports = -1; |
options->use_privileged_port = -1; |
options->use_privileged_port = -1; |
options->rhosts_authentication = -1; |
options->rhosts_authentication = -1; |
options->rsa_authentication = -1; |
options->rsa_authentication = -1; |
options->pubkey_authentication = -1; |
options->dsa_authentication = -1; |
options->challenge_reponse_authentication = -1; |
options->skey_authentication = -1; |
#ifdef KRB4 |
#ifdef KRB4 |
options->kerberos_authentication = -1; |
options->kerberos_authentication = -1; |
#endif |
#endif |
|
|
options->afs_token_passing = -1; |
options->afs_token_passing = -1; |
#endif |
#endif |
options->password_authentication = -1; |
options->password_authentication = -1; |
options->kbd_interactive_authentication = -1; |
|
options->kbd_interactive_devices = NULL; |
|
options->rhosts_rsa_authentication = -1; |
options->rhosts_rsa_authentication = -1; |
options->fallback_to_rsh = -1; |
options->fallback_to_rsh = -1; |
options->use_rsh = -1; |
options->use_rsh = -1; |
|
|
options->number_of_password_prompts = -1; |
options->number_of_password_prompts = -1; |
options->cipher = -1; |
options->cipher = -1; |
options->ciphers = NULL; |
options->ciphers = NULL; |
options->macs = NULL; |
|
options->protocol = SSH_PROTO_UNKNOWN; |
options->protocol = SSH_PROTO_UNKNOWN; |
options->num_identity_files = 0; |
options->num_identity_files = 0; |
|
options->num_identity_files2 = 0; |
options->hostname = NULL; |
options->hostname = NULL; |
options->host_key_alias = NULL; |
|
options->proxy_command = NULL; |
options->proxy_command = NULL; |
options->user = NULL; |
options->user = NULL; |
options->escape_char = -1; |
options->escape_char = -1; |
|
|
options->num_local_forwards = 0; |
options->num_local_forwards = 0; |
options->num_remote_forwards = 0; |
options->num_remote_forwards = 0; |
options->log_level = (LogLevel) - 1; |
options->log_level = (LogLevel) - 1; |
options->preferred_authentications = NULL; |
|
} |
} |
|
|
/* |
/* |
|
|
void |
void |
fill_default_options(Options * options) |
fill_default_options(Options * options) |
{ |
{ |
int len; |
|
|
|
if (options->forward_agent == -1) |
if (options->forward_agent == -1) |
options->forward_agent = 0; |
options->forward_agent = 1; |
if (options->forward_x11 == -1) |
if (options->forward_x11 == -1) |
options->forward_x11 = 0; |
options->forward_x11 = 0; |
#ifdef XAUTH_PATH |
|
if (options->xauth_location == NULL) |
|
options->xauth_location = XAUTH_PATH; |
|
#endif /* XAUTH_PATH */ |
|
if (options->gateway_ports == -1) |
if (options->gateway_ports == -1) |
options->gateway_ports = 0; |
options->gateway_ports = 0; |
if (options->use_privileged_port == -1) |
if (options->use_privileged_port == -1) |
options->use_privileged_port = 0; |
options->use_privileged_port = 1; |
if (options->rhosts_authentication == -1) |
if (options->rhosts_authentication == -1) |
options->rhosts_authentication = 1; |
options->rhosts_authentication = 1; |
if (options->rsa_authentication == -1) |
if (options->rsa_authentication == -1) |
options->rsa_authentication = 1; |
options->rsa_authentication = 1; |
if (options->pubkey_authentication == -1) |
if (options->dsa_authentication == -1) |
options->pubkey_authentication = 1; |
options->dsa_authentication = 1; |
if (options->challenge_reponse_authentication == -1) |
if (options->skey_authentication == -1) |
options->challenge_reponse_authentication = 0; |
options->skey_authentication = 0; |
#ifdef KRB4 |
#ifdef KRB4 |
if (options->kerberos_authentication == -1) |
if (options->kerberos_authentication == -1) |
options->kerberos_authentication = 1; |
options->kerberos_authentication = 1; |
|
|
#endif /* AFS */ |
#endif /* AFS */ |
if (options->password_authentication == -1) |
if (options->password_authentication == -1) |
options->password_authentication = 1; |
options->password_authentication = 1; |
if (options->kbd_interactive_authentication == -1) |
|
options->kbd_interactive_authentication = 1; |
|
if (options->rhosts_rsa_authentication == -1) |
if (options->rhosts_rsa_authentication == -1) |
options->rhosts_rsa_authentication = 1; |
options->rhosts_rsa_authentication = 1; |
if (options->fallback_to_rsh == -1) |
if (options->fallback_to_rsh == -1) |
options->fallback_to_rsh = 0; |
options->fallback_to_rsh = 1; |
if (options->use_rsh == -1) |
if (options->use_rsh == -1) |
options->use_rsh = 0; |
options->use_rsh = 0; |
if (options->batch_mode == -1) |
if (options->batch_mode == -1) |
|
|
if (options->cipher == -1) |
if (options->cipher == -1) |
options->cipher = SSH_CIPHER_NOT_SET; |
options->cipher = SSH_CIPHER_NOT_SET; |
/* options->ciphers, default set in myproposals.h */ |
/* options->ciphers, default set in myproposals.h */ |
/* options->macs, default set in myproposals.h */ |
|
if (options->protocol == SSH_PROTO_UNKNOWN) |
if (options->protocol == SSH_PROTO_UNKNOWN) |
options->protocol = SSH_PROTO_1|SSH_PROTO_2|SSH_PROTO_1_PREFERRED; |
options->protocol = SSH_PROTO_1|SSH_PROTO_2|SSH_PROTO_1_PREFERRED; |
if (options->num_identity_files == 0) { |
if (options->num_identity_files == 0) { |
if (options->protocol & SSH_PROTO_1) { |
options->identity_files[0] = |
len = 2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1; |
xmalloc(2 + strlen(SSH_CLIENT_IDENTITY) + 1); |
options->identity_files[options->num_identity_files] = |
sprintf(options->identity_files[0], "~/%.100s", SSH_CLIENT_IDENTITY); |
xmalloc(len); |
options->num_identity_files = 1; |
snprintf(options->identity_files[options->num_identity_files++], |
|
len, "~/%.100s", _PATH_SSH_CLIENT_IDENTITY); |
|
} |
|
if (options->protocol & SSH_PROTO_2) { |
|
len = 2 + strlen(_PATH_SSH_CLIENT_ID_RSA) + 1; |
|
options->identity_files[options->num_identity_files] = |
|
xmalloc(len); |
|
snprintf(options->identity_files[options->num_identity_files++], |
|
len, "~/%.100s", _PATH_SSH_CLIENT_ID_RSA); |
|
|
|
len = 2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1; |
|
options->identity_files[options->num_identity_files] = |
|
xmalloc(len); |
|
snprintf(options->identity_files[options->num_identity_files++], |
|
len, "~/%.100s", _PATH_SSH_CLIENT_ID_DSA); |
|
} |
|
} |
} |
|
if (options->num_identity_files2 == 0) { |
|
options->identity_files2[0] = |
|
xmalloc(2 + strlen(SSH_CLIENT_ID_DSA) + 1); |
|
sprintf(options->identity_files2[0], "~/%.100s", SSH_CLIENT_ID_DSA); |
|
options->num_identity_files2 = 1; |
|
} |
if (options->escape_char == -1) |
if (options->escape_char == -1) |
options->escape_char = '~'; |
options->escape_char = '~'; |
if (options->system_hostfile == NULL) |
if (options->system_hostfile == NULL) |
options->system_hostfile = _PATH_SSH_SYSTEM_HOSTFILE; |
options->system_hostfile = SSH_SYSTEM_HOSTFILE; |
if (options->user_hostfile == NULL) |
if (options->user_hostfile == NULL) |
options->user_hostfile = _PATH_SSH_USER_HOSTFILE; |
options->user_hostfile = SSH_USER_HOSTFILE; |
if (options->system_hostfile2 == NULL) |
if (options->system_hostfile2 == NULL) |
options->system_hostfile2 = _PATH_SSH_SYSTEM_HOSTFILE2; |
options->system_hostfile2 = SSH_SYSTEM_HOSTFILE2; |
if (options->user_hostfile2 == NULL) |
if (options->user_hostfile2 == NULL) |
options->user_hostfile2 = _PATH_SSH_USER_HOSTFILE2; |
options->user_hostfile2 = SSH_USER_HOSTFILE2; |
if (options->log_level == (LogLevel) - 1) |
if (options->log_level == (LogLevel) - 1) |
options->log_level = SYSLOG_LEVEL_INFO; |
options->log_level = SYSLOG_LEVEL_INFO; |
/* options->proxy_command should not be set by default */ |
/* options->proxy_command should not be set by default */ |
/* options->user will be set in the main program if appropriate */ |
/* options->user will be set in the main program if appropriate */ |
/* options->hostname will be set in the main program if appropriate */ |
/* options->hostname will be set in the main program if appropriate */ |
/* options->host_key_alias should not be set by default */ |
|
/* options->preferred_authentications will be set in ssh */ |
|
} |
} |