/*
- *
- * servconf.c
- *
- * Author: Tatu Ylonen <ylo@cs.hut.fi>
- *
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
- *
- * Created: Mon Aug 21 15:48:58 1995 ylo
- *
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
*/
#include "includes.h"
-RCSID("$Id$");
+RCSID("$OpenBSD: servconf.c,v 1.78 2001/04/15 21:28:35 stevesk Exp $");
+
+#ifdef KRB4
+#include <krb.h>
+#endif
+#ifdef AFS
+#include <kafs.h>
+#endif
#include "ssh.h"
+#include "log.h"
#include "servconf.h"
#include "xmalloc.h"
+#include "compat.h"
+#include "pathnames.h"
+#include "tildexpand.h"
+#include "misc.h"
+#include "cipher.h"
+#include "kex.h"
+#include "mac.h"
+
+void add_listen_addr(ServerOptions *options, char *addr, u_short port);
+void add_one_listen_addr(ServerOptions *options, char *addr, u_short port);
+
+/* AF_UNSPEC or AF_INET or AF_INET6 */
+extern int IPv4or6;
/* Initializes the server options to their default values. */
-void
+void
initialize_server_options(ServerOptions *options)
{
memset(options, 0, sizeof(*options));
- options->port = -1;
- options->listen_addr.s_addr = htonl(INADDR_ANY);
- options->host_key_file = NULL;
+ options->num_ports = 0;
+ options->ports_from_cmdline = 0;
+ options->listen_addrs = NULL;
+ options->num_host_key_files = 0;
+ options->pid_file = NULL;
options->server_key_bits = -1;
options->login_grace_time = -1;
options->key_regeneration_time = -1;
- options->permit_root_login = -1;
+ options->permit_root_login = PERMIT_NOT_SET;
options->ignore_rhosts = -1;
options->ignore_user_known_hosts = -1;
options->print_motd = -1;
+ options->print_lastlog = -1;
options->check_mail = -1;
options->x11_forwarding = -1;
options->x11_display_offset = -1;
+ options->xauth_location = NULL;
options->strict_modes = -1;
options->keepalives = -1;
options->log_facility = (SyslogFacility) - 1;
options->log_level = (LogLevel) - 1;
options->rhosts_authentication = -1;
options->rhosts_rsa_authentication = -1;
+ options->hostbased_authentication = -1;
+ options->hostbased_uses_name_from_packet_only = -1;
options->rsa_authentication = -1;
+ options->pubkey_authentication = -1;
#ifdef KRB4
options->kerberos_authentication = -1;
options->kerberos_or_local_passwd = -1;
options->afs_token_passing = -1;
#endif
options->password_authentication = -1;
-#ifdef SKEY
- options->skey_authentication = -1;
-#endif
+ options->kbd_interactive_authentication = -1;
+ options->challenge_reponse_authentication = -1;
options->permit_empty_passwd = -1;
options->use_login = -1;
+ options->allow_tcp_forwarding = -1;
options->num_allow_users = 0;
options->num_deny_users = 0;
options->num_allow_groups = 0;
options->num_deny_groups = 0;
+ options->ciphers = NULL;
+ options->macs = NULL;
+ options->protocol = SSH_PROTO_UNKNOWN;
+ options->gateway_ports = -1;
+ options->num_subsystems = 0;
+ options->max_startups_begin = -1;
+ options->max_startups_rate = -1;
+ options->max_startups = -1;
+ options->banner = NULL;
+ options->reverse_mapping_check = -1;
+ options->client_alive_interval = -1;
+ options->client_alive_count_max = -1;
+ options->pam_authentication_via_kbd_int = -1;
}
-void
+void
fill_default_server_options(ServerOptions *options)
{
- if (options->port == -1) {
- struct servent *sp;
-
- sp = getservbyname(SSH_SERVICE_NAME, "tcp");
- if (sp)
- options->port = ntohs(sp->s_port);
- else
- options->port = SSH_DEFAULT_PORT;
- endservent();
+ if (options->protocol == SSH_PROTO_UNKNOWN)
+ options->protocol = SSH_PROTO_1|SSH_PROTO_2;
+ if (options->num_host_key_files == 0) {
+ /* fill default hostkeys for protocols */
+ if (options->protocol & SSH_PROTO_1)
+ options->host_key_files[options->num_host_key_files++] = _PATH_HOST_KEY_FILE;
+ if (options->protocol & SSH_PROTO_2)
+ options->host_key_files[options->num_host_key_files++] = _PATH_HOST_DSA_KEY_FILE;
}
- if (options->host_key_file == NULL)
- options->host_key_file = HOST_KEY_FILE;
+ if (options->num_ports == 0)
+ options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
+ if (options->listen_addrs == NULL)
+ add_listen_addr(options, NULL, 0);
+ if (options->pid_file == NULL)
+ options->pid_file = _PATH_SSH_DAEMON_PID_FILE;
if (options->server_key_bits == -1)
options->server_key_bits = 768;
if (options->login_grace_time == -1)
options->login_grace_time = 600;
if (options->key_regeneration_time == -1)
options->key_regeneration_time = 3600;
- if (options->permit_root_login == -1)
- options->permit_root_login = 1; /* yes */
+ if (options->permit_root_login == PERMIT_NOT_SET)
+ options->permit_root_login = PERMIT_YES;
if (options->ignore_rhosts == -1)
- options->ignore_rhosts = 0;
+ options->ignore_rhosts = 1;
if (options->ignore_user_known_hosts == -1)
options->ignore_user_known_hosts = 0;
if (options->check_mail == -1)
options->check_mail = 0;
if (options->print_motd == -1)
options->print_motd = 1;
+ if (options->print_lastlog == -1)
+ options->print_lastlog = 1;
if (options->x11_forwarding == -1)
- options->x11_forwarding = 1;
+ options->x11_forwarding = 0;
if (options->x11_display_offset == -1)
- options->x11_display_offset = 1;
+ options->x11_display_offset = 10;
+#ifdef XAUTH_PATH
+ if (options->xauth_location == NULL)
+ options->xauth_location = XAUTH_PATH;
+#endif /* XAUTH_PATH */
if (options->strict_modes == -1)
options->strict_modes = 1;
if (options->keepalives == -1)
if (options->rhosts_authentication == -1)
options->rhosts_authentication = 0;
if (options->rhosts_rsa_authentication == -1)
- options->rhosts_rsa_authentication = 1;
+ options->rhosts_rsa_authentication = 0;
+ if (options->hostbased_authentication == -1)
+ options->hostbased_authentication = 0;
+ if (options->hostbased_uses_name_from_packet_only == -1)
+ options->hostbased_uses_name_from_packet_only = 0;
if (options->rsa_authentication == -1)
options->rsa_authentication = 1;
+ if (options->pubkey_authentication == -1)
+ options->pubkey_authentication = 1;
#ifdef KRB4
if (options->kerberos_authentication == -1)
options->kerberos_authentication = (access(KEYFILE, R_OK) == 0);
#endif /* AFS */
if (options->password_authentication == -1)
options->password_authentication = 1;
-#ifdef SKEY
- if (options->skey_authentication == -1)
- options->skey_authentication = 1;
-#endif
+ if (options->kbd_interactive_authentication == -1)
+ options->kbd_interactive_authentication = 0;
+ if (options->challenge_reponse_authentication == -1)
+ options->challenge_reponse_authentication = 1;
if (options->permit_empty_passwd == -1)
- options->permit_empty_passwd = 1;
+ options->permit_empty_passwd = 0;
if (options->use_login == -1)
options->use_login = 0;
+ if (options->allow_tcp_forwarding == -1)
+ options->allow_tcp_forwarding = 1;
+ if (options->gateway_ports == -1)
+ options->gateway_ports = 0;
+ if (options->max_startups == -1)
+ options->max_startups = 10;
+ if (options->max_startups_rate == -1)
+ options->max_startups_rate = 100; /* 100% */
+ if (options->max_startups_begin == -1)
+ options->max_startups_begin = options->max_startups;
+ if (options->reverse_mapping_check == -1)
+ options->reverse_mapping_check = 0;
+ if (options->client_alive_interval == -1)
+ options->client_alive_interval = 0;
+ if (options->client_alive_count_max == -1)
+ options->client_alive_count_max = 3;
+ if (options->pam_authentication_via_kbd_int == -1)
+ options->pam_authentication_via_kbd_int = 0;
}
-#define WHITESPACE " \t\r\n"
-
/* Keyword tokens. */
typedef enum {
sBadOption, /* == unknown option */
#ifdef AFS
sKerberosTgtPassing, sAFSTokenPassing,
#endif
-#ifdef SKEY
- sSkeyAuthentication,
-#endif
- sPasswordAuthentication, sListenAddress,
- sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
- sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
- sUseLogin, sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
- sIgnoreUserKnownHosts
+ sChallengeResponseAuthentication,
+ sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
+ sPrintMotd, sPrintLastLog, sIgnoreRhosts,
+ sX11Forwarding, sX11DisplayOffset,
+ sStrictModes, sEmptyPasswd, sKeepAlives, sCheckMail,
+ sUseLogin, sAllowTcpForwarding,
+ sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
+ sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
+ sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
+ sBanner, sReverseMappingCheck, sHostbasedAuthentication,
+ sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
+ sClientAliveCountMax, sPAMAuthenticationViaKbdInt
} ServerOpCodes;
/* Textual representation of the tokens. */
} keywords[] = {
{ "port", sPort },
{ "hostkey", sHostKeyFile },
+ { "hostdsakey", sHostKeyFile }, /* alias */
+ { "pidfile", sPidFile },
{ "serverkeybits", sServerKeyBits },
{ "logingracetime", sLoginGraceTime },
{ "keyregenerationinterval", sKeyRegenerationTime },
{ "loglevel", sLogLevel },
{ "rhostsauthentication", sRhostsAuthentication },
{ "rhostsrsaauthentication", sRhostsRSAAuthentication },
+ { "hostbasedauthentication", sHostbasedAuthentication },
+ { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly },
{ "rsaauthentication", sRSAAuthentication },
+ { "pubkeyauthentication", sPubkeyAuthentication },
+ { "dsaauthentication", sPubkeyAuthentication }, /* alias */
#ifdef KRB4
{ "kerberosauthentication", sKerberosAuthentication },
{ "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
{ "afstokenpassing", sAFSTokenPassing },
#endif
{ "passwordauthentication", sPasswordAuthentication },
-#ifdef SKEY
- { "skeyauthentication", sSkeyAuthentication },
-#endif
+ { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
+ { "challengeresponseauthentication", sChallengeResponseAuthentication },
+ { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */
{ "checkmail", sCheckMail },
{ "listenaddress", sListenAddress },
{ "printmotd", sPrintMotd },
+ { "printlastlog", sPrintLastLog },
{ "ignorerhosts", sIgnoreRhosts },
{ "ignoreuserknownhosts", sIgnoreUserKnownHosts },
{ "x11forwarding", sX11Forwarding },
{ "x11displayoffset", sX11DisplayOffset },
+ { "xauthlocation", sXAuthLocation },
{ "strictmodes", sStrictModes },
{ "permitemptypasswords", sEmptyPasswd },
{ "uselogin", sUseLogin },
- { "randomseed", sRandomSeedFile },
{ "keepalive", sKeepAlives },
+ { "allowtcpforwarding", sAllowTcpForwarding },
{ "allowusers", sAllowUsers },
{ "denyusers", sDenyUsers },
{ "allowgroups", sAllowGroups },
{ "denygroups", sDenyGroups },
+ { "ciphers", sCiphers },
+ { "macs", sMacs },
+ { "protocol", sProtocol },
+ { "gatewayports", sGatewayPorts },
+ { "subsystem", sSubsystem },
+ { "maxstartups", sMaxStartups },
+ { "banner", sBanner },
+ { "reversemappingcheck", sReverseMappingCheck },
+ { "clientaliveinterval", sClientAliveInterval },
+ { "clientalivecountmax", sClientAliveCountMax },
+ { "PAMAuthenticationViaKbdInt", sPAMAuthenticationViaKbdInt },
{ NULL, 0 }
};
-/* Returns the number of the token pointed to by cp of length len.
- Never returns if the token is not known. */
+/*
+ * Returns the number of the token pointed to by cp or sBadOption.
+ */
-static ServerOpCodes
+static ServerOpCodes
parse_token(const char *cp, const char *filename,
int linenum)
{
- unsigned int i;
+ u_int i;
for (i = 0; keywords[i].name; i++)
- if (strcmp(cp, keywords[i].name) == 0)
+ 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 sBadOption;
}
+void
+add_listen_addr(ServerOptions *options, char *addr, u_short port)
+{
+ int i;
+
+ if (options->num_ports == 0)
+ options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
+ if (port == 0)
+ for (i = 0; i < options->num_ports; i++)
+ add_one_listen_addr(options, addr, options->ports[i]);
+ else
+ add_one_listen_addr(options, addr, port);
+}
+
+void
+add_one_listen_addr(ServerOptions *options, char *addr, u_short port)
+{
+ struct addrinfo hints, *ai, *aitop;
+ char strport[NI_MAXSERV];
+ int gaierr;
+
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_family = IPv4or6;
+ hints.ai_socktype = SOCK_STREAM;
+ hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
+ snprintf(strport, sizeof strport, "%d", port);
+ if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
+ fatal("bad addr or host: %s (%s)",
+ addr ? addr : "<NULL>",
+ gai_strerror(gaierr));
+ for (ai = aitop; ai->ai_next; ai = ai->ai_next)
+ ;
+ ai->ai_next = options->listen_addrs;
+ options->listen_addrs = aitop;
+}
+
/* Reads the server configuration file. */
-void
+void
read_server_config(ServerOptions *options, const char *filename)
{
FILE *f;
char line[1024];
- char *cp, **charptr;
+ char *cp, **charptr, *arg, *p;
int linenum, *intptr, value;
int bad_options = 0;
ServerOpCodes opcode;
+ int i;
f = fopen(filename, "r");
if (!f) {
linenum = 0;
while (fgets(line, sizeof(line), f)) {
linenum++;
- cp = line + strspn(line, WHITESPACE);
- if (!*cp || *cp == '#')
+ cp = line;
+ arg = strdelim(&cp);
+ /* Ignore leading whitespace */
+ if (*arg == '\0')
+ arg = strdelim(&cp);
+ if (!arg || !*arg || *arg == '#')
continue;
- cp = strtok(cp, WHITESPACE);
- {
- char *t = cp;
- for (; *t != 0; t++)
- if ('A' <= *t && *t <= 'Z')
- *t = *t - 'A' + 'a'; /* tolower */
-
- }
- opcode = parse_token(cp, filename, linenum);
+ intptr = NULL;
+ charptr = NULL;
+ opcode = parse_token(arg, filename, linenum);
switch (opcode) {
case sBadOption:
bad_options++;
continue;
case sPort:
- intptr = &options->port;
-parse_int:
- cp = strtok(NULL, WHITESPACE);
- if (!cp) {
- fprintf(stderr, "%s line %d: missing integer value.\n",
- filename, linenum);
- exit(1);
- }
- value = atoi(cp);
- if (*intptr == -1)
- *intptr = value;
+ /* ignore ports from configfile if cmdline specifies ports */
+ if (options->ports_from_cmdline)
+ continue;
+ if (options->listen_addrs != NULL)
+ fatal("%s line %d: ports must be specified before "
+ "ListenAdress.\n", filename, linenum);
+ if (options->num_ports >= MAX_PORTS)
+ fatal("%s line %d: too many ports.",
+ filename, linenum);
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing port number.",
+ filename, linenum);
+ options->ports[options->num_ports++] = a2port(arg);
+ if (options->ports[options->num_ports-1] == 0)
+ fatal("%s line %d: Badly formatted port number.",
+ filename, linenum);
break;
case sServerKeyBits:
intptr = &options->server_key_bits;
- goto parse_int;
+parse_int:
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing integer value.",
+ filename, linenum);
+ value = atoi(arg);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
case sLoginGraceTime:
intptr = &options->login_grace_time;
goto parse_int;
case sListenAddress:
- cp = strtok(NULL, WHITESPACE);
- if (!cp) {
- fprintf(stderr, "%s line %d: missing inet addr.\n",
- filename, linenum);
- exit(1);
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0' || strncmp(arg, "[]", 2) == 0)
+ fatal("%s line %d: missing inet addr.",
+ filename, linenum);
+ if (*arg == '[') {
+ if ((p = strchr(arg, ']')) == NULL)
+ fatal("%s line %d: bad ipv6 inet addr usage.",
+ filename, linenum);
+ arg++;
+ memmove(p, p+1, strlen(p+1)+1);
+ } else if (((p = strchr(arg, ':')) == NULL) ||
+ (strchr(p+1, ':') != NULL)) {
+ add_listen_addr(options, arg, 0);
+ break;
}
- options->listen_addr.s_addr = inet_addr(cp);
+ if (*p == ':') {
+ u_short port;
+
+ p++;
+ if (*p == '\0')
+ fatal("%s line %d: bad inet addr:port usage.",
+ filename, linenum);
+ else {
+ *(p-1) = '\0';
+ if ((port = a2port(p)) == 0)
+ fatal("%s line %d: bad port number.",
+ filename, linenum);
+ add_listen_addr(options, arg, port);
+ }
+ } else if (*p == '\0')
+ add_listen_addr(options, arg, 0);
+ else
+ fatal("%s line %d: bad inet addr usage.",
+ filename, linenum);
break;
case sHostKeyFile:
- charptr = &options->host_key_file;
- cp = strtok(NULL, WHITESPACE);
- if (!cp) {
- fprintf(stderr, "%s line %d: missing file name.\n",
- filename, linenum);
- exit(1);
+ intptr = &options->num_host_key_files;
+ if (*intptr >= MAX_HOSTKEYS)
+ fatal("%s line %d: too many host keys specified (max %d).",
+ filename, linenum, MAX_HOSTKEYS);
+ charptr = &options->host_key_files[*intptr];
+parse_filename:
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing file name.",
+ filename, linenum);
+ if (*charptr == NULL) {
+ *charptr = tilde_expand_filename(arg, getuid());
+ /* increase optional counter */
+ if (intptr != NULL)
+ *intptr = *intptr + 1;
}
- if (*charptr == NULL)
- *charptr = tilde_expand_filename(cp, getuid());
break;
- case sRandomSeedFile:
- fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
- filename, linenum);
- cp = strtok(NULL, WHITESPACE);
- break;
+ case sPidFile:
+ charptr = &options->pid_file;
+ goto parse_filename;
case sPermitRootLogin:
intptr = &options->permit_root_login;
- cp = strtok(NULL, WHITESPACE);
- if (!cp) {
- fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
- filename, linenum);
- exit(1);
- }
- if (strcmp(cp, "without-password") == 0)
- value = 2;
- else if (strcmp(cp, "yes") == 0)
- value = 1;
- else if (strcmp(cp, "no") == 0)
- value = 0;
- else {
- fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
- filename, linenum, cp);
- exit(1);
- }
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing yes/"
+ "without-password/forced-commands-only/no "
+ "argument.", filename, linenum);
+ value = 0; /* silence compiler */
+ if (strcmp(arg, "without-password") == 0)
+ value = PERMIT_NO_PASSWD;
+ else if (strcmp(arg, "forced-commands-only") == 0)
+ value = PERMIT_FORCED_ONLY;
+ else if (strcmp(arg, "yes") == 0)
+ value = PERMIT_YES;
+ else if (strcmp(arg, "no") == 0)
+ value = PERMIT_NO;
+ else
+ fatal("%s line %d: Bad yes/"
+ "without-password/forced-commands-only/no "
+ "argument: %s", filename, linenum, arg);
if (*intptr == -1)
*intptr = value;
break;
case sIgnoreRhosts:
intptr = &options->ignore_rhosts;
parse_flag:
- cp = strtok(NULL, WHITESPACE);
- if (!cp) {
- fprintf(stderr, "%s line %d: missing yes/no argument.\n",
- filename, linenum);
- exit(1);
- }
- if (strcmp(cp, "yes") == 0)
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing yes/no argument.",
+ filename, linenum);
+ value = 0; /* silence compiler */
+ if (strcmp(arg, "yes") == 0)
value = 1;
- else if (strcmp(cp, "no") == 0)
+ else if (strcmp(arg, "no") == 0)
value = 0;
- else {
- fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
- filename, linenum, cp);
- exit(1);
- }
+ else
+ fatal("%s line %d: Bad yes/no argument: %s",
+ filename, linenum, arg);
if (*intptr == -1)
*intptr = value;
break;
case sIgnoreUserKnownHosts:
intptr = &options->ignore_user_known_hosts;
- goto parse_int;
+ goto parse_flag;
case sRhostsAuthentication:
intptr = &options->rhosts_authentication;
intptr = &options->rhosts_rsa_authentication;
goto parse_flag;
+ case sHostbasedAuthentication:
+ intptr = &options->hostbased_authentication;
+ goto parse_flag;
+
+ case sHostbasedUsesNameFromPacketOnly:
+ intptr = &options->hostbased_uses_name_from_packet_only;
+ goto parse_flag;
+
case sRSAAuthentication:
intptr = &options->rsa_authentication;
goto parse_flag;
+ case sPubkeyAuthentication:
+ intptr = &options->pubkey_authentication;
+ goto parse_flag;
+
#ifdef KRB4
case sKerberosAuthentication:
intptr = &options->kerberos_authentication;
intptr = &options->password_authentication;
goto parse_flag;
+ case sKbdInteractiveAuthentication:
+ intptr = &options->kbd_interactive_authentication;
+ goto parse_flag;
+
case sCheckMail:
intptr = &options->check_mail;
goto parse_flag;
-#ifdef SKEY
- case sSkeyAuthentication:
- intptr = &options->skey_authentication;
+ case sChallengeResponseAuthentication:
+ intptr = &options->challenge_reponse_authentication;
goto parse_flag;
-#endif
case sPrintMotd:
intptr = &options->print_motd;
goto parse_flag;
+ case sPrintLastLog:
+ intptr = &options->print_lastlog;
+ goto parse_flag;
+
case sX11Forwarding:
intptr = &options->x11_forwarding;
goto parse_flag;
intptr = &options->x11_display_offset;
goto parse_int;
+ case sXAuthLocation:
+ charptr = &options->xauth_location;
+ goto parse_filename;
+
case sStrictModes:
intptr = &options->strict_modes;
goto parse_flag;
intptr = &options->use_login;
goto parse_flag;
+ case sGatewayPorts:
+ intptr = &options->gateway_ports;
+ goto parse_flag;
+
+ case sReverseMappingCheck:
+ intptr = &options->reverse_mapping_check;
+ goto parse_flag;
+
case sLogFacility:
intptr = (int *) &options->log_facility;
- cp = strtok(NULL, WHITESPACE);
- value = log_facility_number(cp);
+ arg = strdelim(&cp);
+ value = log_facility_number(arg);
if (value == (SyslogFacility) - 1)
- fatal("%.200s line %d: unsupported log facility '%s'\n",
- filename, linenum, cp ? cp : "<NONE>");
+ fatal("%.200s line %d: unsupported log facility '%s'",
+ filename, linenum, arg ? arg : "<NONE>");
if (*intptr == -1)
*intptr = (SyslogFacility) value;
break;
case sLogLevel:
intptr = (int *) &options->log_level;
- cp = strtok(NULL, WHITESPACE);
- value = log_level_number(cp);
+ arg = strdelim(&cp);
+ value = log_level_number(arg);
if (value == (LogLevel) - 1)
- fatal("%.200s line %d: unsupported log level '%s'\n",
- filename, linenum, cp ? cp : "<NONE>");
+ fatal("%.200s line %d: unsupported log level '%s'",
+ filename, linenum, arg ? arg : "<NONE>");
if (*intptr == -1)
*intptr = (LogLevel) value;
break;
+ case sAllowTcpForwarding:
+ intptr = &options->allow_tcp_forwarding;
+ goto parse_flag;
+
case sAllowUsers:
- while ((cp = strtok(NULL, WHITESPACE))) {
- if (options->num_allow_users >= MAX_ALLOW_USERS) {
- fprintf(stderr, "%s line %d: too many allow users.\n",
- filename, linenum);
- exit(1);
- }
- options->allow_users[options->num_allow_users++] = xstrdup(cp);
+ while ((arg = strdelim(&cp)) && *arg != '\0') {
+ if (options->num_allow_users >= MAX_ALLOW_USERS)
+ fatal("%s line %d: too many allow users.",
+ filename, linenum);
+ options->allow_users[options->num_allow_users++] = xstrdup(arg);
}
break;
case sDenyUsers:
- while ((cp = strtok(NULL, WHITESPACE))) {
- if (options->num_deny_users >= MAX_DENY_USERS) {
- fprintf(stderr, "%s line %d: too many deny users.\n",
- filename, linenum);
- exit(1);
- }
- options->deny_users[options->num_deny_users++] = xstrdup(cp);
+ while ((arg = strdelim(&cp)) && *arg != '\0') {
+ if (options->num_deny_users >= MAX_DENY_USERS)
+ fatal( "%s line %d: too many deny users.",
+ filename, linenum);
+ options->deny_users[options->num_deny_users++] = xstrdup(arg);
}
break;
case sAllowGroups:
- while ((cp = strtok(NULL, WHITESPACE))) {
- if (options->num_allow_groups >= MAX_ALLOW_GROUPS) {
- fprintf(stderr, "%s line %d: too many allow groups.\n",
- filename, linenum);
- exit(1);
- }
- options->allow_groups[options->num_allow_groups++] = xstrdup(cp);
+ while ((arg = strdelim(&cp)) && *arg != '\0') {
+ if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
+ fatal("%s line %d: too many allow groups.",
+ filename, linenum);
+ options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
}
break;
case sDenyGroups:
- while ((cp = strtok(NULL, WHITESPACE))) {
- if (options->num_deny_groups >= MAX_DENY_GROUPS) {
- fprintf(stderr, "%s line %d: too many deny groups.\n",
- filename, linenum);
- exit(1);
- }
- options->deny_groups[options->num_deny_groups++] = xstrdup(cp);
+ while ((arg = strdelim(&cp)) && *arg != '\0') {
+ if (options->num_deny_groups >= MAX_DENY_GROUPS)
+ fatal("%s line %d: too many deny groups.",
+ filename, linenum);
+ options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
}
break;
+ case sCiphers:
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: Missing argument.", filename, linenum);
+ if (!ciphers_valid(arg))
+ fatal("%s line %d: Bad SSH2 cipher spec '%s'.",
+ filename, linenum, arg ? arg : "<NONE>");
+ if (options->ciphers == NULL)
+ options->ciphers = xstrdup(arg);
+ break;
+
+ case sMacs:
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: Missing argument.", filename, linenum);
+ if (!mac_valid(arg))
+ fatal("%s line %d: Bad SSH2 mac spec '%s'.",
+ filename, linenum, arg ? arg : "<NONE>");
+ if (options->macs == NULL)
+ options->macs = xstrdup(arg);
+ break;
+
+ case sProtocol:
+ intptr = &options->protocol;
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: Missing argument.", filename, linenum);
+ value = proto_spec(arg);
+ if (value == SSH_PROTO_UNKNOWN)
+ fatal("%s line %d: Bad protocol spec '%s'.",
+ filename, linenum, arg ? arg : "<NONE>");
+ if (*intptr == SSH_PROTO_UNKNOWN)
+ *intptr = value;
+ break;
+
+ case sSubsystem:
+ if(options->num_subsystems >= MAX_SUBSYSTEMS) {
+ fatal("%s line %d: too many subsystems defined.",
+ filename, linenum);
+ }
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: Missing subsystem name.",
+ filename, linenum);
+ for (i = 0; i < options->num_subsystems; i++)
+ if(strcmp(arg, options->subsystem_name[i]) == 0)
+ fatal("%s line %d: Subsystem '%s' already defined.",
+ filename, linenum, arg);
+ options->subsystem_name[options->num_subsystems] = xstrdup(arg);
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: Missing subsystem command.",
+ filename, linenum);
+ options->subsystem_command[options->num_subsystems] = xstrdup(arg);
+ options->num_subsystems++;
+ break;
+
+ case sMaxStartups:
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: Missing MaxStartups spec.",
+ filename, linenum);
+ if (sscanf(arg, "%d:%d:%d",
+ &options->max_startups_begin,
+ &options->max_startups_rate,
+ &options->max_startups) == 3) {
+ if (options->max_startups_begin >
+ options->max_startups ||
+ options->max_startups_rate > 100 ||
+ options->max_startups_rate < 1)
+ fatal("%s line %d: Illegal MaxStartups spec.",
+ filename, linenum);
+ break;
+ }
+ intptr = &options->max_startups;
+ goto parse_int;
+
+ case sBanner:
+ charptr = &options->banner;
+ goto parse_filename;
+ case sClientAliveInterval:
+ intptr = &options->client_alive_interval;
+ goto parse_int;
+ case sClientAliveCountMax:
+ intptr = &options->client_alive_count_max;
+ goto parse_int;
+ case sPAMAuthenticationViaKbdInt:
+ intptr = &options->pam_authentication_via_kbd_int;
+ goto parse_flag;
+
default:
- fprintf(stderr, "%s line %d: Missing handler for opcode %s (%d)\n",
- filename, linenum, cp, opcode);
- exit(1);
- }
- if (strtok(NULL, WHITESPACE) != NULL) {
- fprintf(stderr, "%s line %d: garbage at end of line.\n",
- filename, linenum);
- exit(1);
+ fatal("%s line %d: Missing handler for opcode %s (%d)",
+ filename, linenum, arg, opcode);
}
+ if ((arg = strdelim(&cp)) != NULL && *arg != '\0')
+ fatal("%s line %d: garbage at end of line; \"%.200s\".",
+ filename, linenum, arg);
}
fclose(f);
- if (bad_options > 0) {
- fprintf(stderr, "%s: terminating, %d bad configuration options\n",
- filename, bad_options);
- exit(1);
- }
+ if (bad_options > 0)
+ fatal("%s: terminating, %d bad configuration options",
+ filename, bad_options);
}
andersk / openssh.git / blobdiff