*/
#include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.63 2001/01/22 23:06:39 markus Exp $");
+RCSID("$OpenBSD: servconf.c,v 1.84 2001/06/23 15:12:19 itojun Exp $");
#ifdef KRB4
#include <krb.h>
#include "tildexpand.h"
#include "misc.h"
#include "cipher.h"
+#include "kex.h"
+#include "mac.h"
-/* add listen address */
-void add_listen_addr(ServerOptions *options, char *addr);
+static void add_listen_addr(ServerOptions *, char *, u_short);
+static void add_one_listen_addr(ServerOptions *, char *, u_short);
/* AF_UNSPEC or AF_INET or AF_INET6 */
extern int IPv4or6;
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->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
#endif
options->password_authentication = -1;
options->kbd_interactive_authentication = -1;
- options->challenge_reponse_authentication = -1;
+ options->challenge_response_authentication = -1;
options->permit_empty_passwd = -1;
options->use_login = -1;
options->allow_tcp_forwarding = -1;
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_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->authorized_keys_file = NULL;
+ options->authorized_keys_file2 = NULL;
+ options->pam_authentication_via_kbd_int = -1;
}
void
if (options->num_ports == 0)
options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
if (options->listen_addrs == NULL)
- add_listen_addr(options, 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->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 = 1;
if (options->ignore_user_known_hosts == -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 = 0;
if (options->x11_display_offset == -1)
options->x11_display_offset = 10;
-#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->strict_modes == -1)
options->strict_modes = 1;
if (options->keepalives == -1)
options->rhosts_authentication = 0;
if (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->password_authentication = 1;
if (options->kbd_interactive_authentication == -1)
options->kbd_interactive_authentication = 0;
- if (options->challenge_reponse_authentication == -1)
- options->challenge_reponse_authentication = 1;
+ if (options->challenge_response_authentication == -1)
+ options->challenge_response_authentication = 1;
if (options->permit_empty_passwd == -1)
options->permit_empty_passwd = 0;
if (options->use_login == -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->authorized_keys_file == NULL)
+ options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
+ if (options->authorized_keys_file2 == NULL)
+ options->authorized_keys_file2 = _PATH_SSH_USER_PERMITTED_KEYS2;
+ if (options->pam_authentication_via_kbd_int == -1)
+ options->pam_authentication_via_kbd_int = 0;
}
/* Keyword tokens. */
#endif
sChallengeResponseAuthentication,
sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
- sPrintMotd, sIgnoreRhosts, sX11Forwarding, sX11DisplayOffset,
- sStrictModes, sEmptyPasswd, sRandomSeedFile, sKeepAlives, sCheckMail,
+ sPrintMotd, sPrintLastLog, sIgnoreRhosts,
+ sX11Forwarding, sX11DisplayOffset,
+ sStrictModes, sEmptyPasswd, sKeepAlives, sCheckMail,
sUseLogin, sAllowTcpForwarding,
sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
- sIgnoreUserKnownHosts, sCiphers, sProtocol, sPidFile,
+ sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
- sBanner
+ sBanner, sReverseMappingCheck, sHostbasedAuthentication,
+ sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
+ sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2,
+ sPAMAuthenticationViaKbdInt
} ServerOpCodes;
/* Textual representation of the tokens. */
{ "port", sPort },
{ "hostkey", sHostKeyFile },
{ "hostdsakey", sHostKeyFile }, /* alias */
- { "pidfile", sPidFile },
+ { "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 */
{ "checkmail", sCheckMail },
{ "listenaddress", sListenAddress },
{ "printmotd", sPrintMotd },
+ { "printlastlog", sPrintLastLog },
{ "ignorerhosts", sIgnoreRhosts },
{ "ignoreuserknownhosts", sIgnoreUserKnownHosts },
{ "x11forwarding", sX11Forwarding },
{ "strictmodes", sStrictModes },
{ "permitemptypasswords", sEmptyPasswd },
{ "uselogin", sUseLogin },
- { "randomseed", sRandomSeedFile },
{ "keepalive", sKeepAlives },
{ "allowtcpforwarding", sAllowTcpForwarding },
{ "allowusers", sAllowUsers },
{ "allowgroups", sAllowGroups },
{ "denygroups", sDenyGroups },
{ "ciphers", sCiphers },
+ { "macs", sMacs },
{ "protocol", sProtocol },
{ "gatewayports", sGatewayPorts },
{ "subsystem", sSubsystem },
{ "maxstartups", sMaxStartups },
{ "banner", sBanner },
+ { "reversemappingcheck", sReverseMappingCheck },
+ { "clientaliveinterval", sClientAliveInterval },
+ { "clientalivecountmax", sClientAliveCountMax },
+ { "authorizedkeysfile", sAuthorizedKeysFile },
+ { "authorizedkeysfile2", sAuthorizedKeysFile2 },
+ { "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
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;
}
-/*
- * add listen address
- */
-void
-add_listen_addr(ServerOptions *options, char *addr)
+static void
+add_listen_addr(ServerOptions *options, char *addr, u_short port)
{
- struct addrinfo hints, *ai, *aitop;
- char strport[NI_MAXSERV];
- int gaierr;
int i;
if (options->num_ports == 0)
options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
- for (i = 0; i < options->num_ports; i++) {
- 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", options->ports[i]);
- if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
- fatal("bad addr or host: %s (%s)\n",
- 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;
- }
+ 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);
+}
+
+static 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. */
{
FILE *f;
char line[1024];
- char *cp, **charptr, *arg;
+ char *cp, **charptr, *arg, *p;
int linenum, *intptr, value;
int bad_options = 0;
ServerOpCodes opcode;
continue;
if (options->listen_addrs != NULL)
fatal("%s line %d: ports must be specified before "
- "ListenAdress.\n", filename, linenum);
+ "ListenAdress.", filename, linenum);
if (options->num_ports >= MAX_PORTS)
- fatal("%s line %d: too many ports.\n",
+ fatal("%s line %d: too many ports.",
filename, linenum);
arg = strdelim(&cp);
if (!arg || *arg == '\0')
- fatal("%s line %d: missing port number.\n",
+ 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);
- options->ports[options->num_ports++] = atoi(arg);
break;
case sServerKeyBits:
intptr = &options->server_key_bits;
parse_int:
arg = strdelim(&cp);
- if (!arg || *arg == '\0') {
- fprintf(stderr, "%s line %d: missing integer value.\n",
- filename, linenum);
- exit(1);
- }
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing integer value.",
+ filename, linenum);
value = atoi(arg);
if (*intptr == -1)
*intptr = value;
case sLoginGraceTime:
intptr = &options->login_grace_time;
- goto parse_int;
+parse_time:
+ arg = strdelim(&cp);
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing time value.",
+ filename, linenum);
+ if ((value = convtime(arg)) == -1)
+ fatal("%s line %d: invalid time value.",
+ filename, linenum);
+ if (*intptr == -1)
+ *intptr = value;
+ break;
case sKeyRegenerationTime:
intptr = &options->key_regeneration_time;
- goto parse_int;
+ goto parse_time;
case sListenAddress:
arg = strdelim(&cp);
- if (!arg || *arg == '\0')
- fatal("%s line %d: missing inet addr.\n",
+ 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;
+ }
+ 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);
- add_listen_addr(options, arg);
break;
case sHostKeyFile:
intptr = &options->num_host_key_files;
- if (*intptr >= MAX_HOSTKEYS) {
- fprintf(stderr, "%s line %d: to many host keys specified (max %d).\n",
+ if (*intptr >= MAX_HOSTKEYS)
+ fatal("%s line %d: too many host keys specified (max %d).",
filename, linenum, MAX_HOSTKEYS);
- exit(1);
- }
charptr = &options->host_key_files[*intptr];
parse_filename:
arg = strdelim(&cp);
- if (!arg || *arg == '\0') {
- fprintf(stderr, "%s line %d: missing file name.\n",
+ if (!arg || *arg == '\0')
+ fatal("%s line %d: missing file name.",
filename, linenum);
- exit(1);
- }
if (*charptr == NULL) {
*charptr = tilde_expand_filename(arg, getuid());
/* increase optional counter */
charptr = &options->pid_file;
goto parse_filename;
- case sRandomSeedFile:
- fprintf(stderr, "%s line %d: \"randomseed\" option is obsolete.\n",
- filename, linenum);
- arg = strdelim(&cp);
- break;
-
case sPermitRootLogin:
intptr = &options->permit_root_login;
arg = strdelim(&cp);
- if (!arg || *arg == '\0') {
- fprintf(stderr, "%s line %d: missing yes/without-password/no argument.\n",
- filename, linenum);
- exit(1);
- }
+ 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 = 2;
+ value = PERMIT_NO_PASSWD;
+ else if (strcmp(arg, "forced-commands-only") == 0)
+ value = PERMIT_FORCED_ONLY;
else if (strcmp(arg, "yes") == 0)
- value = 1;
+ value = PERMIT_YES;
else if (strcmp(arg, "no") == 0)
- value = 0;
- else {
- fprintf(stderr, "%s line %d: Bad yes/without-password/no argument: %s\n",
- filename, linenum, arg);
- exit(1);
- }
+ 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;
intptr = &options->ignore_rhosts;
parse_flag:
arg = strdelim(&cp);
- if (!arg || *arg == '\0') {
- fprintf(stderr, "%s line %d: missing yes/no argument.\n",
- filename, linenum);
- exit(1);
- }
+ 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(arg, "no") == 0)
value = 0;
- else {
- fprintf(stderr, "%s line %d: Bad yes/no argument: %s\n",
+ else
+ fatal("%s line %d: Bad yes/no argument: %s",
filename, linenum, arg);
- exit(1);
- }
if (*intptr == -1)
*intptr = value;
break;
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;
goto parse_flag;
case sChallengeResponseAuthentication:
- intptr = &options->challenge_reponse_authentication;
+ intptr = &options->challenge_response_authentication;
goto parse_flag;
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;
case sXAuthLocation:
charptr = &options->xauth_location;
goto parse_filename;
-
+
case sStrictModes:
intptr = &options->strict_modes;
goto parse_flag;
intptr = &options->gateway_ports;
goto parse_flag;
+ case sReverseMappingCheck:
+ intptr = &options->reverse_mapping_check;
+ goto parse_flag;
+
case sLogFacility:
intptr = (int *) &options->log_facility;
arg = strdelim(&cp);
value = log_facility_number(arg);
if (value == (SyslogFacility) - 1)
- fatal("%.200s line %d: unsupported log facility '%s'\n",
+ fatal("%.200s line %d: unsupported log facility '%s'",
filename, linenum, arg ? arg : "<NONE>");
if (*intptr == -1)
*intptr = (SyslogFacility) value;
arg = strdelim(&cp);
value = log_level_number(arg);
if (value == (LogLevel) - 1)
- fatal("%.200s line %d: unsupported log level '%s'\n",
+ fatal("%.200s line %d: unsupported log level '%s'",
filename, linenum, arg ? arg : "<NONE>");
if (*intptr == -1)
*intptr = (LogLevel) value;
case sAllowUsers:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_allow_users >= MAX_ALLOW_USERS)
- fatal("%s line %d: too many allow users.\n",
+ fatal("%s line %d: too many allow users.",
filename, linenum);
options->allow_users[options->num_allow_users++] = xstrdup(arg);
}
case sDenyUsers:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_deny_users >= MAX_DENY_USERS)
- fatal( "%s line %d: too many deny users.\n",
+ fatal( "%s line %d: too many deny users.",
filename, linenum);
options->deny_users[options->num_deny_users++] = xstrdup(arg);
}
case sAllowGroups:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_allow_groups >= MAX_ALLOW_GROUPS)
- fatal("%s line %d: too many allow groups.\n",
+ fatal("%s line %d: too many allow groups.",
filename, linenum);
options->allow_groups[options->num_allow_groups++] = xstrdup(arg);
}
case sDenyGroups:
while ((arg = strdelim(&cp)) && *arg != '\0') {
if (options->num_deny_groups >= MAX_DENY_GROUPS)
- fatal("%s line %d: too many deny groups.\n",
+ fatal("%s line %d: too many deny groups.",
filename, linenum);
options->deny_groups[options->num_deny_groups++] = xstrdup(arg);
}
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);
case sBanner:
charptr = &options->banner;
goto parse_filename;
-
+ /*
+ * These options can contain %X options expanded at
+ * connect time, so that you can specify paths like:
+ *
+ * AuthorizedKeysFile /etc/ssh_keys/%u
+ */
+ case sAuthorizedKeysFile:
+ case sAuthorizedKeysFile2:
+ charptr = (opcode == sAuthorizedKeysFile ) ?
+ &options->authorized_keys_file :
+ &options->authorized_keys_file2;
+ goto parse_filename;
+
+ case sClientAliveInterval:
+ intptr = &options->client_alive_interval;
+ goto parse_time;
+
+ 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, arg, opcode);
- exit(1);
- }
- if ((arg = strdelim(&cp)) != NULL && *arg != '\0') {
- fprintf(stderr,
- "%s line %d: garbage at end of line; \"%.200s\".\n",
- filename, linenum, arg);
- 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