*/
#include "includes.h"
-RCSID("$OpenBSD: readconf.c,v 1.70 2001/04/02 14:20:23 stevesk Exp $");
+RCSID("$OpenBSD: readconf.c,v 1.93 2001/12/19 07:18:56 deraadt Exp $");
#include "ssh.h"
#include "xmalloc.h"
oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication,
oPasswordAuthentication, oRSAAuthentication, oFallBackToRsh, oUseRsh,
oChallengeResponseAuthentication, oXAuthLocation,
-#ifdef KRB4
+#if defined(KRB4) || defined(KRB5)
oKerberosAuthentication,
-#endif /* KRB4 */
+#endif
+#if defined(AFS) || defined(KRB5)
+ oKerberosTgtPassing,
+#endif
#ifdef AFS
- oKerberosTgtPassing, oAFSTokenPassing,
+ oAFSTokenPassing,
#endif
oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward,
oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand,
oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol, oMacs,
oGlobalKnownHostsFile2, oUserKnownHostsFile2, oPubkeyAuthentication,
oKbdInteractiveAuthentication, oKbdInteractiveDevices, oHostKeyAlias,
- oPreferredAuthentications
+ oDynamicForward, oPreferredAuthentications, oHostbasedAuthentication,
+ oHostKeyAlgorithms, oBindAddress, oSmartcardDevice,
+ oClearAllForwardings, oNoHostAuthenticationForLocalhost
} OpCodes;
/* Textual representations of the tokens. */
{ "rsaauthentication", oRSAAuthentication },
{ "pubkeyauthentication", oPubkeyAuthentication },
{ "dsaauthentication", oPubkeyAuthentication }, /* alias */
+ { "rhostsrsaauthentication", oRhostsRSAAuthentication },
+ { "hostbasedauthentication", oHostbasedAuthentication },
{ "challengeresponseauthentication", oChallengeResponseAuthentication },
{ "skeyauthentication", oChallengeResponseAuthentication }, /* alias */
{ "tisauthentication", oChallengeResponseAuthentication }, /* alias */
-#ifdef KRB4
+#if defined(KRB4) || defined(KRB5)
{ "kerberosauthentication", oKerberosAuthentication },
-#endif /* KRB4 */
-#ifdef AFS
+#endif
+#if defined(AFS) || defined(KRB5)
{ "kerberostgtpassing", oKerberosTgtPassing },
+#endif
+#ifdef AFS
{ "afstokenpassing", oAFSTokenPassing },
#endif
{ "fallbacktorsh", oFallBackToRsh },
{ "user", oUser },
{ "host", oHost },
{ "escapechar", oEscapeChar },
- { "rhostsrsaauthentication", oRhostsRSAAuthentication },
{ "globalknownhostsfile", oGlobalKnownHostsFile },
- { "userknownhostsfile", oUserKnownHostsFile },
+ { "userknownhostsfile", oUserKnownHostsFile }, /* obsolete */
{ "globalknownhostsfile2", oGlobalKnownHostsFile2 },
- { "userknownhostsfile2", oUserKnownHostsFile2 },
+ { "userknownhostsfile2", oUserKnownHostsFile2 }, /* obsolete */
{ "connectionattempts", oConnectionAttempts },
{ "batchmode", oBatchMode },
{ "checkhostip", oCheckHostIP },
{ "keepalive", oKeepAlives },
{ "numberofpasswordprompts", oNumberOfPasswordPrompts },
{ "loglevel", oLogLevel },
+ { "dynamicforward", oDynamicForward },
{ "preferredauthentications", oPreferredAuthentications },
- { NULL, 0 }
+ { "hostkeyalgorithms", oHostKeyAlgorithms },
+ { "bindaddress", oBindAddress },
+ { "smartcarddevice", oSmartcardDevice },
+ { "clearallforwardings", oClearAllForwardings },
+ { "nohostauthenticationforlocalhost", oNoHostAuthenticationForLocalhost },
+ { NULL, oBadOption }
};
/*
Forward *fwd;
if (options->num_remote_forwards >= SSH_MAX_FORWARDS_PER_DIRECTION)
fatal("Too many remote forwards (max %d).",
- SSH_MAX_FORWARDS_PER_DIRECTION);
+ SSH_MAX_FORWARDS_PER_DIRECTION);
fwd = &options->remote_forwards[options->num_remote_forwards++];
fwd->port = port;
fwd->host = xstrdup(host);
fwd->host_port = host_port;
}
+static void
+clear_forwardings(Options *options)
+{
+ int i;
+
+ for (i = 0; i < options->num_local_forwards; i++)
+ xfree(options->local_forwards[i].host);
+ options->num_local_forwards = 0;
+ for (i = 0; i < options->num_remote_forwards; i++)
+ xfree(options->remote_forwards[i].host);
+ options->num_remote_forwards = 0;
+}
+
/*
* Returns the number of the token pointed to by cp or oBadOption.
*/
if (strcasecmp(cp, keywords[i].name) == 0)
return keywords[i].opcode;
- fprintf(stderr, "%s: line %d: Bad configuration option: %s\n",
- filename, linenum, cp);
+ error("%s: line %d: Bad configuration option: %s",
+ filename, linenum, cp);
return oBadOption;
}
char buf[256], *s, *string, **charptr, *endofnumber, *keyword, *arg;
int opcode, *intptr, value;
u_short fwd_port, fwd_host_port;
+ char sfwd_host_port[6];
s = line;
/* Get the keyword. (Each line is supposed to begin with a keyword). */
intptr = &options->rhosts_rsa_authentication;
goto parse_flag;
- case oChallengeResponseAuthentication:
- intptr = &options->challenge_reponse_authentication;
+ case oHostbasedAuthentication:
+ intptr = &options->hostbased_authentication;
goto parse_flag;
-#ifdef KRB4
+ case oChallengeResponseAuthentication:
+ intptr = &options->challenge_response_authentication;
+ goto parse_flag;
+#if defined(KRB4) || defined(KRB5)
case oKerberosAuthentication:
intptr = &options->kerberos_authentication;
goto parse_flag;
-#endif /* KRB4 */
-
-#ifdef AFS
+#endif
+#if defined(AFS) || defined(KRB5)
case oKerberosTgtPassing:
intptr = &options->kerberos_tgt_passing;
goto parse_flag;
-
+#endif
+#ifdef AFS
case oAFSTokenPassing:
intptr = &options->afs_token_passing;
goto parse_flag;
#endif
-
case oFallBackToRsh:
intptr = &options->fallback_to_rsh;
goto parse_flag;
arg = strdelim(&s);
if (!arg || *arg == '\0')
fatal("%.200s line %d: Missing yes/no/ask argument.",
- filename, linenum);
+ filename, linenum);
value = 0; /* To avoid compiler warning... */
if (strcmp(arg, "yes") == 0 || strcmp(arg, "true") == 0)
value = 1;
intptr = &options->keepalives;
goto parse_flag;
+ case oNoHostAuthenticationForLocalhost:
+ intptr = &options->no_host_authentication_for_localhost;
+ goto parse_flag;
+
case oNumberOfPasswordPrompts:
intptr = &options->number_of_password_prompts;
goto parse_int;
intptr = &options->num_identity_files;
if (*intptr >= SSH_MAX_IDENTITY_FILES)
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 = xstrdup(arg);
*intptr = *intptr + 1;
charptr = &options->preferred_authentications;
goto parse_string;
+ case oBindAddress:
+ charptr = &options->bind_address;
+ goto parse_string;
+
+ case oSmartcardDevice:
+ charptr = &options->smartcard_device;
+ goto parse_string;
+
case oProxyCommand:
charptr = &options->proxy_command;
string = xstrdup("");
value = cipher_number(arg);
if (value == -1)
fatal("%.200s line %d: Bad cipher '%s'.",
- filename, linenum, arg ? arg : "<NONE>");
+ filename, linenum, arg ? arg : "<NONE>");
if (*activep && *intptr == -1)
*intptr = value;
break;
fatal("%.200s line %d: Missing argument.", filename, linenum);
if (!ciphers_valid(arg))
fatal("%.200s line %d: Bad SSH2 cipher spec '%s'.",
- filename, linenum, arg ? arg : "<NONE>");
+ filename, linenum, arg ? arg : "<NONE>");
if (*activep && options->ciphers == NULL)
options->ciphers = xstrdup(arg);
break;
fatal("%.200s line %d: Missing argument.", filename, linenum);
if (!mac_valid(arg))
fatal("%.200s line %d: Bad SSH2 Mac spec '%s'.",
- filename, linenum, arg ? arg : "<NONE>");
+ filename, linenum, arg ? arg : "<NONE>");
if (*activep && options->macs == NULL)
options->macs = xstrdup(arg);
break;
+ case oHostKeyAlgorithms:
+ arg = strdelim(&s);
+ if (!arg || *arg == '\0')
+ fatal("%.200s line %d: Missing argument.", filename, linenum);
+ if (!key_names_valid2(arg))
+ fatal("%.200s line %d: Bad protocol 2 host key algorithms '%s'.",
+ filename, linenum, arg ? arg : "<NONE>");
+ if (*activep && options->hostkeyalgorithms == NULL)
+ options->hostkeyalgorithms = xstrdup(arg);
+ break;
+
case oProtocol:
intptr = &options->protocol;
arg = strdelim(&s);
value = proto_spec(arg);
if (value == SSH_PROTO_UNKNOWN)
fatal("%.200s line %d: Bad protocol spec '%s'.",
- filename, linenum, arg ? arg : "<NONE>");
+ filename, linenum, arg ? arg : "<NONE>");
if (*activep && *intptr == SSH_PROTO_UNKNOWN)
*intptr = value;
break;
value = log_level_number(arg);
if (value == (LogLevel) - 1)
fatal("%.200s line %d: unsupported log level '%s'",
- filename, linenum, arg ? arg : "<NONE>");
+ filename, linenum, arg ? arg : "<NONE>");
if (*activep && (LogLevel) * intptr == -1)
*intptr = (LogLevel) value;
break;
+ case oLocalForward:
case oRemoteForward:
arg = strdelim(&s);
if (!arg || *arg == '\0')
- fatal("%.200s line %d: Missing argument.", filename, linenum);
- if (arg[0] < '0' || arg[0] > '9')
- fatal("%.200s line %d: Badly formatted port number.",
- filename, linenum);
- fwd_port = atoi(arg);
+ fatal("%.200s line %d: Missing port argument.",
+ filename, linenum);
+ if ((fwd_port = a2port(arg)) == 0)
+ fatal("%.200s line %d: Bad listen port.",
+ filename, linenum);
arg = strdelim(&s);
if (!arg || *arg == '\0')
fatal("%.200s line %d: Missing second argument.",
- filename, linenum);
- if (sscanf(arg, "%255[^:]:%hu", buf, &fwd_host_port) != 2)
- fatal("%.200s line %d: Badly formatted host:port.",
- filename, linenum);
- if (*activep)
- add_remote_forward(options, fwd_port, buf, fwd_host_port);
+ filename, linenum);
+ if (sscanf(arg, "%255[^:]:%5[0-9]", buf, sfwd_host_port) != 2 &&
+ sscanf(arg, "%255[^/]/%5[0-9]", buf, sfwd_host_port) != 2)
+ fatal("%.200s line %d: Bad forwarding specification.",
+ filename, linenum);
+ if ((fwd_host_port = a2port(sfwd_host_port)) == 0)
+ fatal("%.200s line %d: Bad forwarding port.",
+ filename, linenum);
+ if (*activep) {
+ if (opcode == oLocalForward)
+ add_local_forward(options, fwd_port, buf,
+ fwd_host_port);
+ else if (opcode == oRemoteForward)
+ add_remote_forward(options, fwd_port, buf,
+ fwd_host_port);
+ }
break;
- case oLocalForward:
+ case oDynamicForward:
arg = strdelim(&s);
if (!arg || *arg == '\0')
- fatal("%.200s line %d: Missing argument.", filename, linenum);
- if (arg[0] < '0' || arg[0] > '9')
+ fatal("%.200s line %d: Missing port argument.",
+ filename, linenum);
+ fwd_port = a2port(arg);
+ if (fwd_port == 0)
fatal("%.200s line %d: Badly formatted port number.",
- filename, linenum);
- fwd_port = atoi(arg);
- arg = strdelim(&s);
- if (!arg || *arg == '\0')
- fatal("%.200s line %d: Missing second argument.",
- filename, linenum);
- if (sscanf(arg, "%255[^:]:%hu", buf, &fwd_host_port) != 2)
- fatal("%.200s line %d: Badly formatted host:port.",
- filename, linenum);
+ filename, linenum);
if (*activep)
- add_local_forward(options, fwd_port, buf, fwd_host_port);
+ add_local_forward(options, fwd_port, "socks4", 0);
break;
+ case oClearAllForwardings:
+ intptr = &options->clear_forwardings;
+ goto parse_flag;
+
case oHost:
*activep = 0;
while ((arg = strdelim(&s)) != NULL && *arg != '\0')
else if (strlen(arg) == 1)
value = (u_char) arg[0];
else if (strcmp(arg, "none") == 0)
- value = -2;
+ value = SSH_ESCAPECHAR_NONE;
else {
fatal("%.200s line %d: Bad escape character.",
- filename, linenum);
+ filename, linenum);
/* NOTREACHED */
value = 0; /* Avoid compiler warning. */
}
/* Check that there is no garbage at end of line. */
if ((arg = strdelim(&s)) != NULL && *arg != '\0') {
fatal("%.200s line %d: garbage at end of line; \"%.200s\".",
- filename, linenum, arg);
+ filename, linenum, arg);
}
return 0;
}
/*
* Reads the config file and modifies the options accordingly. Options
* should already be initialized before this call. This never returns if
- * there is an error. If the file does not exist, this returns immediately.
+ * there is an error. If the file does not exist, this returns 0.
*/
-void
+int
read_config_file(const char *filename, const char *host, Options *options)
{
FILE *f;
/* Open the file. */
f = fopen(filename, "r");
if (!f)
- return;
+ return 0;
debug("Reading configuration data %.200s", filename);
fclose(f);
if (bad_options > 0)
fatal("%s: terminating, %d bad configuration options",
- filename, bad_options);
+ filename, bad_options);
+ return 1;
}
/*
options->rhosts_authentication = -1;
options->rsa_authentication = -1;
options->pubkey_authentication = -1;
- options->challenge_reponse_authentication = -1;
-#ifdef KRB4
+ options->challenge_response_authentication = -1;
+#if defined(KRB4) || defined(KRB5)
options->kerberos_authentication = -1;
#endif
-#ifdef AFS
+#if defined(AFS) || defined(KRB5)
options->kerberos_tgt_passing = -1;
+#endif
+#ifdef AFS
options->afs_token_passing = -1;
#endif
options->password_authentication = -1;
options->kbd_interactive_authentication = -1;
options->kbd_interactive_devices = NULL;
options->rhosts_rsa_authentication = -1;
+ options->hostbased_authentication = -1;
options->fallback_to_rsh = -1;
options->use_rsh = -1;
options->batch_mode = -1;
options->cipher = -1;
options->ciphers = NULL;
options->macs = NULL;
+ options->hostkeyalgorithms = NULL;
options->protocol = SSH_PROTO_UNKNOWN;
options->num_identity_files = 0;
options->hostname = NULL;
options->user_hostfile2 = NULL;
options->num_local_forwards = 0;
options->num_remote_forwards = 0;
+ options->clear_forwardings = -1;
options->log_level = (LogLevel) - 1;
options->preferred_authentications = NULL;
+ options->bind_address = NULL;
+ options->smartcard_device = NULL;
+ options->no_host_authentication_for_localhost = - 1;
}
/*
options->forward_agent = 0;
if (options->forward_x11 == -1)
options->forward_x11 = 0;
-#ifdef XAUTH_PATH
+#ifdef _PATH_XAUTH
if (options->xauth_location == NULL)
- options->xauth_location = XAUTH_PATH;
-#endif /* XAUTH_PATH */
+ options->xauth_location = _PATH_XAUTH;
+#endif
if (options->gateway_ports == -1)
options->gateway_ports = 0;
if (options->use_privileged_port == -1)
options->rsa_authentication = 1;
if (options->pubkey_authentication == -1)
options->pubkey_authentication = 1;
- if (options->challenge_reponse_authentication == -1)
- options->challenge_reponse_authentication = 0;
-#ifdef KRB4
+ if (options->challenge_response_authentication == -1)
+ options->challenge_response_authentication = 1;
+#if defined(KRB4) || defined(KRB5)
if (options->kerberos_authentication == -1)
options->kerberos_authentication = 1;
-#endif /* KRB4 */
-#ifdef AFS
+#endif
+#if defined(AFS) || defined(KRB5)
if (options->kerberos_tgt_passing == -1)
options->kerberos_tgt_passing = 1;
+#endif
+#ifdef AFS
if (options->afs_token_passing == -1)
options->afs_token_passing = 1;
-#endif /* AFS */
+#endif
if (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)
options->rhosts_rsa_authentication = 1;
+ if (options->hostbased_authentication == -1)
+ options->hostbased_authentication = 0;
if (options->fallback_to_rsh == -1)
options->fallback_to_rsh = 0;
if (options->use_rsh == -1)
if (options->port == -1)
options->port = 0; /* Filled in ssh_connect. */
if (options->connection_attempts == -1)
- options->connection_attempts = 4;
+ options->connection_attempts = 1;
if (options->number_of_password_prompts == -1)
options->number_of_password_prompts = 3;
/* Selected in ssh_login(). */
options->cipher = SSH_CIPHER_NOT_SET;
/* options->ciphers, default set in myproposals.h */
/* options->macs, default set in myproposals.h */
+ /* options->hostkeyalgorithms, default set in myproposals.h */
if (options->protocol == SSH_PROTO_UNKNOWN)
options->protocol = SSH_PROTO_1|SSH_PROTO_2;
if (options->num_identity_files == 0) {
options->user_hostfile2 = _PATH_SSH_USER_HOSTFILE2;
if (options->log_level == (LogLevel) - 1)
options->log_level = SYSLOG_LEVEL_INFO;
+ if (options->clear_forwardings == 1)
+ clear_forwardings(options);
+ if (options->no_host_authentication_for_localhost == - 1)
+ options->no_host_authentication_for_localhost = 0;
/* options->proxy_command should not be set by default */
/* options->user will be set in the main program if appropriate */
/* options->hostname will be set in the main program if appropriate */
andersk / openssh.git / blobdiff