]> andersk Git - openssh.git/blobdiff - servconf.c
- djm@cvs.openbsd.org 2006/03/19 07:41:30
[openssh.git] / servconf.c
index 5f8e74e331bab5aac38cc6193b5486a591427f37..7923f5df4c985b7925538a2f7608765ede668040 100644 (file)
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.109 2002/05/15 21:02:52 markus Exp $");
-
-#if defined(KRB4)
-#include <krb.h>
-#endif
-#if defined(KRB5)
-#ifdef HEIMDAL
-#include <krb.h>
-#else
-/* Bodge - but then, so is using the kerberos IV KEYFILE to get a Kerberos V
- * keytab */
-#define KEYFILE "/etc/krb5.keytab"
-#endif
-#endif
-#ifdef AFS
-#include <kafs.h>
-#endif
 
 #include "ssh.h"
 #include "log.h"
@@ -34,7 +17,6 @@ RCSID("$OpenBSD: servconf.c,v 1.109 2002/05/15 21:02:52 markus Exp $");
 #include "xmalloc.h"
 #include "compat.h"
 #include "pathnames.h"
-#include "tildexpand.h"
 #include "misc.h"
 #include "cipher.h"
 #include "kex.h"
@@ -43,8 +25,6 @@ RCSID("$OpenBSD: servconf.c,v 1.109 2002/05/15 21:02:52 markus Exp $");
 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;
 /* Use of privilege separation or not */
 extern int use_privsep;
 
@@ -56,12 +36,13 @@ initialize_server_options(ServerOptions *options)
        memset(options, 0, sizeof(*options));
 
        /* Portable-specific options */
-       options->pam_authentication_via_kbd_int = -1;
+       options->use_pam = -1;
 
        /* Standard Options */
        options->num_ports = 0;
        options->ports_from_cmdline = 0;
        options->listen_addrs = NULL;
+       options->address_family = -1;
        options->num_host_key_files = 0;
        options->pid_file = NULL;
        options->server_key_bits = -1;
@@ -77,31 +58,27 @@ initialize_server_options(ServerOptions *options)
        options->x11_use_localhost = -1;
        options->xauth_location = NULL;
        options->strict_modes = -1;
-       options->keepalives = -1;
+       options->tcp_keep_alive = -1;
        options->log_facility = SYSLOG_FACILITY_NOT_SET;
        options->log_level = SYSLOG_LEVEL_NOT_SET;
-       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;
-#if defined(KRB4) || defined(KRB5)
        options->kerberos_authentication = -1;
        options->kerberos_or_local_passwd = -1;
        options->kerberos_ticket_cleanup = -1;
-#endif
-#if defined(AFS) || defined(KRB5)
-       options->kerberos_tgt_passing = -1;
-#endif
-#ifdef AFS
-       options->afs_token_passing = -1;
-#endif
+       options->kerberos_get_afs_token = -1;
+       options->gss_authentication=-1;
+       options->gss_cleanup_creds = -1;
        options->password_authentication = -1;
        options->kbd_interactive_authentication = -1;
        options->challenge_response_authentication = -1;
        options->permit_empty_passwd = -1;
+       options->permit_user_env = -1;
        options->use_login = -1;
+       options->compression = -1;
        options->allow_tcp_forwarding = -1;
        options->num_allow_users = 0;
        options->num_deny_users = 0;
@@ -115,12 +92,15 @@ initialize_server_options(ServerOptions *options)
        options->max_startups_begin = -1;
        options->max_startups_rate = -1;
        options->max_startups = -1;
+       options->max_authtries = -1;
        options->banner = NULL;
-       options->verify_reverse_mapping = -1;
+       options->use_dns = -1;
        options->client_alive_interval = -1;
        options->client_alive_count_max = -1;
        options->authorized_keys_file = NULL;
        options->authorized_keys_file2 = NULL;
+       options->num_accept_env = 0;
+       options->permit_tun = -1;
 
        /* Needs to be accessable in many places */
        use_privsep = -1;
@@ -130,8 +110,8 @@ void
 fill_default_server_options(ServerOptions *options)
 {
        /* Portable-specific options */
-       if (options->pam_authentication_via_kbd_int == -1)
-               options->pam_authentication_via_kbd_int = 0;
+       if (options->use_pam == -1)
+               options->use_pam = 0;
 
        /* Standard Options */
        if (options->protocol == SSH_PROTO_UNKNOWN)
@@ -157,7 +137,7 @@ fill_default_server_options(ServerOptions *options)
        if (options->server_key_bits == -1)
                options->server_key_bits = 768;
        if (options->login_grace_time == -1)
-               options->login_grace_time = 600;
+               options->login_grace_time = 120;
        if (options->key_regeneration_time == -1)
                options->key_regeneration_time = 3600;
        if (options->permit_root_login == PERMIT_NOT_SET)
@@ -180,14 +160,12 @@ fill_default_server_options(ServerOptions *options)
                options->xauth_location = _PATH_XAUTH;
        if (options->strict_modes == -1)
                options->strict_modes = 1;
-       if (options->keepalives == -1)
-               options->keepalives = 1;
+       if (options->tcp_keep_alive == -1)
+               options->tcp_keep_alive = 1;
        if (options->log_facility == SYSLOG_FACILITY_NOT_SET)
                options->log_facility = SYSLOG_FACILITY_AUTH;
        if (options->log_level == SYSLOG_LEVEL_NOT_SET)
                options->log_level = SYSLOG_LEVEL_INFO;
-       if (options->rhosts_authentication == -1)
-               options->rhosts_authentication = 0;
        if (options->rhosts_rsa_authentication == -1)
                options->rhosts_rsa_authentication = 0;
        if (options->hostbased_authentication == -1)
@@ -198,22 +176,18 @@ fill_default_server_options(ServerOptions *options)
                options->rsa_authentication = 1;
        if (options->pubkey_authentication == -1)
                options->pubkey_authentication = 1;
-#if defined(KRB4) || defined(KRB5)
        if (options->kerberos_authentication == -1)
                options->kerberos_authentication = 0;
        if (options->kerberos_or_local_passwd == -1)
                options->kerberos_or_local_passwd = 1;
        if (options->kerberos_ticket_cleanup == -1)
                options->kerberos_ticket_cleanup = 1;
-#endif
-#if defined(AFS) || defined(KRB5)
-       if (options->kerberos_tgt_passing == -1)
-               options->kerberos_tgt_passing = 0;
-#endif
-#ifdef AFS
-       if (options->afs_token_passing == -1)
-               options->afs_token_passing = 0;
-#endif
+       if (options->kerberos_get_afs_token == -1)
+               options->kerberos_get_afs_token = 0;
+       if (options->gss_authentication == -1)
+               options->gss_authentication = 0;
+       if (options->gss_cleanup_creds == -1)
+               options->gss_cleanup_creds = 1;
        if (options->password_authentication == -1)
                options->password_authentication = 1;
        if (options->kbd_interactive_authentication == -1)
@@ -222,8 +196,12 @@ fill_default_server_options(ServerOptions *options)
                options->challenge_response_authentication = 1;
        if (options->permit_empty_passwd == -1)
                options->permit_empty_passwd = 0;
+       if (options->permit_user_env == -1)
+               options->permit_user_env = 0;
        if (options->use_login == -1)
                options->use_login = 0;
+       if (options->compression == -1)
+               options->compression = COMP_DELAYED;
        if (options->allow_tcp_forwarding == -1)
                options->allow_tcp_forwarding = 1;
        if (options->gateway_ports == -1)
@@ -234,8 +212,10 @@ fill_default_server_options(ServerOptions *options)
                options->max_startups_rate = 100;               /* 100% */
        if (options->max_startups_begin == -1)
                options->max_startups_begin = options->max_startups;
-       if (options->verify_reverse_mapping == -1)
-               options->verify_reverse_mapping = 0;
+       if (options->max_authtries == -1)
+               options->max_authtries = DEFAULT_AUTH_FAIL_MAX;
+       if (options->use_dns == -1)
+               options->use_dns = 1;
        if (options->client_alive_interval == -1)
                options->client_alive_interval = 0;
        if (options->client_alive_count_max == -1)
@@ -249,44 +229,52 @@ fill_default_server_options(ServerOptions *options)
        }
        if (options->authorized_keys_file == NULL)
                options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
+       if (options->permit_tun == -1)
+               options->permit_tun = SSH_TUNMODE_NO;
 
-       /* Turn privilege separation _off_ by default */
+       /* Turn privilege separation on by default */
        if (use_privsep == -1)
-               use_privsep = 0;
+               use_privsep = 1;
+
+#ifndef HAVE_MMAP
+       if (use_privsep && options->compression == 1) {
+               error("This platform does not support both privilege "
+                   "separation and compression");
+               error("Compression disabled");
+               options->compression = 0;
+       }
+#endif
+
 }
 
 /* Keyword tokens. */
 typedef enum {
        sBadOption,             /* == unknown option */
        /* Portable-specific options */
-       sPAMAuthenticationViaKbdInt,
+       sUsePAM,
        /* Standard Options */
        sPort, sHostKeyFile, sServerKeyBits, sLoginGraceTime, sKeyRegenerationTime,
        sPermitRootLogin, sLogFacility, sLogLevel,
-       sRhostsAuthentication, sRhostsRSAAuthentication, sRSAAuthentication,
-#if defined(KRB4) || defined(KRB5)
+       sRhostsRSAAuthentication, sRSAAuthentication,
        sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
-#endif
-#if defined(AFS) || defined(KRB5)
-       sKerberosTgtPassing,
-#endif
-#ifdef AFS
-       sAFSTokenPassing,
-#endif
-       sChallengeResponseAuthentication,
-       sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
+       sKerberosGetAFSToken,
+       sKerberosTgtPassing, sChallengeResponseAuthentication,
+       sPasswordAuthentication, sKbdInteractiveAuthentication,
+       sListenAddress, sAddressFamily,
        sPrintMotd, sPrintLastLog, sIgnoreRhosts,
        sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
-       sStrictModes, sEmptyPasswd, sKeepAlives,
-       sUseLogin, sAllowTcpForwarding,
+       sStrictModes, sEmptyPasswd, sTCPKeepAlive,
+       sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
        sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
        sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
-       sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
-       sBanner, sVerifyReverseMapping, sHostbasedAuthentication,
+       sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem,
+       sMaxStartups, sMaxAuthTries,
+       sBanner, sUseDNS, sHostbasedAuthentication,
        sHostbasedUsesNameFromPacketOnly, sClientAliveInterval,
        sClientAliveCountMax, sAuthorizedKeysFile, sAuthorizedKeysFile2,
+       sGssAuthentication, sGssCleanupCreds, sAcceptEnv, sPermitTunnel,
        sUsePrivilegeSeparation,
-       sDeprecated
+       sDeprecated, sUnsupported
 } ServerOpCodes;
 
 /* Textual representation of the tokens. */
@@ -295,7 +283,12 @@ static struct {
        ServerOpCodes opcode;
 } keywords[] = {
        /* Portable-specific options */
-       { "PAMAuthenticationViaKbdInt", sPAMAuthenticationViaKbdInt },
+#ifdef USE_PAM
+       { "usepam", sUsePAM },
+#else
+       { "usepam", sUnsupported },
+#endif
+       { "pamauthenticationviakbdint", sDeprecated },
        /* Standard Options */
        { "port", sPort },
        { "hostkey", sHostKeyFile },
@@ -307,23 +300,36 @@ static struct {
        { "permitrootlogin", sPermitRootLogin },
        { "syslogfacility", sLogFacility },
        { "loglevel", sLogLevel },
-       { "rhostsauthentication", sRhostsAuthentication },
+       { "rhostsauthentication", sDeprecated },
        { "rhostsrsaauthentication", sRhostsRSAAuthentication },
        { "hostbasedauthentication", sHostbasedAuthentication },
        { "hostbasedusesnamefrompacketonly", sHostbasedUsesNameFromPacketOnly },
        { "rsaauthentication", sRSAAuthentication },
        { "pubkeyauthentication", sPubkeyAuthentication },
        { "dsaauthentication", sPubkeyAuthentication },                 /* alias */
-#if defined(KRB4) || defined(KRB5)
+#ifdef KRB5
        { "kerberosauthentication", sKerberosAuthentication },
        { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
        { "kerberosticketcleanup", sKerberosTicketCleanup },
+#ifdef USE_AFS
+       { "kerberosgetafstoken", sKerberosGetAFSToken },
+#else
+       { "kerberosgetafstoken", sUnsupported },
 #endif
-#if defined(AFS) || defined(KRB5)
-       { "kerberostgtpassing", sKerberosTgtPassing },
+#else
+       { "kerberosauthentication", sUnsupported },
+       { "kerberosorlocalpasswd", sUnsupported },
+       { "kerberosticketcleanup", sUnsupported },
+       { "kerberosgetafstoken", sUnsupported },
 #endif
-#ifdef AFS
-       { "afstokenpassing", sAFSTokenPassing },
+       { "kerberostgtpassing", sUnsupported },
+       { "afstokenpassing", sUnsupported },
+#ifdef GSSAPI
+       { "gssapiauthentication", sGssAuthentication },
+       { "gssapicleanupcredentials", sGssCleanupCreds },
+#else
+       { "gssapiauthentication", sUnsupported },
+       { "gssapicleanupcredentials", sUnsupported },
 #endif
        { "passwordauthentication", sPasswordAuthentication },
        { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
@@ -331,6 +337,7 @@ static struct {
        { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */
        { "checkmail", sDeprecated },
        { "listenaddress", sListenAddress },
+       { "addressfamily", sAddressFamily },
        { "printmotd", sPrintMotd },
        { "printlastlog", sPrintLastLog },
        { "ignorerhosts", sIgnoreRhosts },
@@ -341,8 +348,11 @@ static struct {
        { "xauthlocation", sXAuthLocation },
        { "strictmodes", sStrictModes },
        { "permitemptypasswords", sEmptyPasswd },
+       { "permituserenvironment", sPermitUserEnvironment },
        { "uselogin", sUseLogin },
-       { "keepalive", sKeepAlives },
+       { "compression", sCompression },
+       { "tcpkeepalive", sTCPKeepAlive },
+       { "keepalive", sTCPKeepAlive },                         /* obsolete alias */
        { "allowtcpforwarding", sAllowTcpForwarding },
        { "allowusers", sAllowUsers },
        { "denyusers", sDenyUsers },
@@ -354,14 +364,18 @@ static struct {
        { "gatewayports", sGatewayPorts },
        { "subsystem", sSubsystem },
        { "maxstartups", sMaxStartups },
+       { "maxauthtries", sMaxAuthTries },
        { "banner", sBanner },
-       { "verifyreversemapping", sVerifyReverseMapping },
-       { "reversemappingcheck", sVerifyReverseMapping },
+       { "usedns", sUseDNS },
+       { "verifyreversemapping", sDeprecated },
+       { "reversemappingcheck", sDeprecated },
        { "clientaliveinterval", sClientAliveInterval },
        { "clientalivecountmax", sClientAliveCountMax },
        { "authorizedkeysfile", sAuthorizedKeysFile },
        { "authorizedkeysfile2", sAuthorizedKeysFile2 },
        { "useprivilegeseparation", sUsePrivilegeSeparation},
+       { "acceptenv", sAcceptEnv },
+       { "permittunnel", sPermitTunnel },
        { NULL, sBadOption }
 };
 
@@ -387,10 +401,12 @@ parse_token(const char *cp, const char *filename,
 static void
 add_listen_addr(ServerOptions *options, char *addr, u_short port)
 {
-       int i;
+       u_int i;
 
        if (options->num_ports == 0)
                options->ports[options->num_ports++] = SSH_DEFAULT_PORT;
+       if (options->address_family == -1)
+               options->address_family = AF_UNSPEC;
        if (port == 0)
                for (i = 0; i < options->num_ports; i++)
                        add_one_listen_addr(options, addr, options->ports[i]);
@@ -406,10 +422,10 @@ add_one_listen_addr(ServerOptions *options, char *addr, u_short port)
        int gaierr;
 
        memset(&hints, 0, sizeof(hints));
-       hints.ai_family = IPv4or6;
+       hints.ai_family = options->address_family;
        hints.ai_socktype = SOCK_STREAM;
        hints.ai_flags = (addr == NULL) ? AI_PASSIVE : 0;
-       snprintf(strport, sizeof strport, "%d", port);
+       snprintf(strport, sizeof strport, "%u", port);
        if ((gaierr = getaddrinfo(addr, strport, &hints, &aitop)) != 0)
                fatal("bad addr or host: %s (%s)",
                    addr ? addr : "<NULL>",
@@ -425,12 +441,14 @@ process_server_config_line(ServerOptions *options, char *line,
     const char *filename, int linenum)
 {
        char *cp, **charptr, *arg, *p;
-       int *intptr, value;
+       int *intptr, value, n;
        ServerOpCodes opcode;
-       int i, n;
+       u_short port;
+       u_int i;
 
        cp = line;
-       arg = strdelim(&cp);
+       if ((arg = strdelim(&cp)) != NULL)
+               return 0;
        /* Ignore leading whitespace */
        if (*arg == '\0')
                arg = strdelim(&cp);
@@ -441,8 +459,8 @@ process_server_config_line(ServerOptions *options, char *line,
        opcode = parse_token(arg, filename, linenum);
        switch (opcode) {
        /* Portable-specific options */
-       case sPAMAuthenticationViaKbdInt:
-               intptr = &options->pam_authentication_via_kbd_int;
+       case sUsePAM:
+               intptr = &options->use_pam;
                goto parse_flag;
 
        /* Standard Options */
@@ -500,39 +518,49 @@ parse_time:
 
        case sListenAddress:
                arg = strdelim(&cp);
-               if (!arg || *arg == '\0' || strncmp(arg, "[]", 2) == 0)
-                       fatal("%s line %d: missing inet addr.",
+               if (arg == NULL || *arg == '\0')
+                       fatal("%s line %d: missing address",
                            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)) {
+               /* check for bare IPv6 address: no "[]" and 2 or more ":" */
+               if (strchr(arg, '[') == NULL && (p = strchr(arg, ':')) != NULL
+                   && strchr(p+1, ':') != NULL) {
                        add_listen_addr(options, arg, 0);
                        break;
                }
-               if (*p == ':') {
-                       u_short port;
+               p = hpdelim(&arg);
+               if (p == NULL)
+                       fatal("%s line %d: bad address:port usage",
+                           filename, linenum);
+               p = cleanhostname(p);
+               if (arg == NULL)
+                       port = 0;
+               else if ((port = a2port(arg)) == 0)
+                       fatal("%s line %d: bad port number", filename, linenum);
 
-                       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.",
+               add_listen_addr(options, p, port);
+
+               break;
+
+       case sAddressFamily:
+               arg = strdelim(&cp);
+               if (!arg || *arg == '\0')
+                       fatal("%s line %d: missing address family.",
                            filename, linenum);
+               intptr = &options->address_family;
+               if (options->listen_addrs != NULL)
+                       fatal("%s line %d: address family must be specified before "
+                           "ListenAddress.", filename, linenum);
+               if (strcasecmp(arg, "inet") == 0)
+                       value = AF_INET;
+               else if (strcasecmp(arg, "inet6") == 0)
+                       value = AF_INET6;
+               else if (strcasecmp(arg, "any") == 0)
+                       value = AF_UNSPEC;
+               else
+                       fatal("%s line %d: unsupported address family \"%s\".",
+                           filename, linenum, arg);
+               if (*intptr == -1)
+                       *intptr = value;
                break;
 
        case sHostKeyFile:
@@ -605,10 +633,6 @@ parse_flag:
                intptr = &options->ignore_user_known_hosts;
                goto parse_flag;
 
-       case sRhostsAuthentication:
-               intptr = &options->rhosts_authentication;
-               goto parse_flag;
-
        case sRhostsRSAAuthentication:
                intptr = &options->rhosts_rsa_authentication;
                goto parse_flag;
@@ -628,7 +652,7 @@ parse_flag:
        case sPubkeyAuthentication:
                intptr = &options->pubkey_authentication;
                goto parse_flag;
-#if defined(KRB4) || defined(KRB5)
+
        case sKerberosAuthentication:
                intptr = &options->kerberos_authentication;
                goto parse_flag;
@@ -640,17 +664,18 @@ parse_flag:
        case sKerberosTicketCleanup:
                intptr = &options->kerberos_ticket_cleanup;
                goto parse_flag;
-#endif
-#if defined(AFS) || defined(KRB5)
-       case sKerberosTgtPassing:
-               intptr = &options->kerberos_tgt_passing;
+
+       case sKerberosGetAFSToken:
+               intptr = &options->kerberos_get_afs_token;
                goto parse_flag;
-#endif
-#ifdef AFS
-       case sAFSTokenPassing:
-               intptr = &options->afs_token_passing;
+
+       case sGssAuthentication:
+               intptr = &options->gss_authentication;
+               goto parse_flag;
+
+       case sGssCleanupCreds:
+               intptr = &options->gss_cleanup_creds;
                goto parse_flag;
-#endif
 
        case sPasswordAuthentication:
                intptr = &options->password_authentication;
@@ -692,24 +717,64 @@ parse_flag:
                intptr = &options->strict_modes;
                goto parse_flag;
 
-       case sKeepAlives:
-               intptr = &options->keepalives;
+       case sTCPKeepAlive:
+               intptr = &options->tcp_keep_alive;
                goto parse_flag;
 
        case sEmptyPasswd:
                intptr = &options->permit_empty_passwd;
                goto parse_flag;
 
+       case sPermitUserEnvironment:
+               intptr = &options->permit_user_env;
+               goto parse_flag;
+
        case sUseLogin:
                intptr = &options->use_login;
                goto parse_flag;
 
+       case sCompression:
+               intptr = &options->compression;
+               arg = strdelim(&cp);
+               if (!arg || *arg == '\0')
+                       fatal("%s line %d: missing yes/no/delayed "
+                           "argument.", filename, linenum);
+               value = 0;      /* silence compiler */
+               if (strcmp(arg, "delayed") == 0)
+                       value = COMP_DELAYED;
+               else if (strcmp(arg, "yes") == 0)
+                       value = COMP_ZLIB;
+               else if (strcmp(arg, "no") == 0)
+                       value = COMP_NONE;
+               else
+                       fatal("%s line %d: Bad yes/no/delayed "
+                           "argument: %s", filename, linenum, arg);
+               if (*intptr == -1)
+                       *intptr = value;
+               break;
+
        case sGatewayPorts:
                intptr = &options->gateway_ports;
-               goto parse_flag;
+               arg = strdelim(&cp);
+               if (!arg || *arg == '\0')
+                       fatal("%s line %d: missing yes/no/clientspecified "
+                           "argument.", filename, linenum);
+               value = 0;      /* silence compiler */
+               if (strcmp(arg, "clientspecified") == 0)
+                       value = 2;
+               else if (strcmp(arg, "yes") == 0)
+                       value = 1;
+               else if (strcmp(arg, "no") == 0)
+                       value = 0;
+               else
+                       fatal("%s line %d: Bad yes/no/clientspecified "
+                           "argument: %s", filename, linenum, arg);
+               if (*intptr == -1)
+                       *intptr = value;
+               break;
 
-       case sVerifyReverseMapping:
-               intptr = &options->verify_reverse_mapping;
+       case sUseDNS:
+               intptr = &options->use_dns;
                goto parse_flag;
 
        case sLogFacility:
@@ -747,7 +812,8 @@ parse_flag:
                        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);
+                       options->allow_users[options->num_allow_users++] =
+                           xstrdup(arg);
                }
                break;
 
@@ -756,7 +822,8 @@ parse_flag:
                        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);
+                       options->deny_users[options->num_deny_users++] =
+                           xstrdup(arg);
                }
                break;
 
@@ -765,7 +832,8 @@ parse_flag:
                        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);
+                       options->allow_groups[options->num_allow_groups++] =
+                           xstrdup(arg);
                }
                break;
 
@@ -857,6 +925,10 @@ parse_flag:
                        options->max_startups = options->max_startups_begin;
                break;
 
+       case sMaxAuthTries:
+               intptr = &options->max_authtries;
+               goto parse_int;
+
        case sBanner:
                charptr = &options->banner;
                goto parse_filename;
@@ -881,8 +953,50 @@ parse_flag:
                intptr = &options->client_alive_count_max;
                goto parse_int;
 
+       case sAcceptEnv:
+               while ((arg = strdelim(&cp)) && *arg != '\0') {
+                       if (strchr(arg, '=') != NULL)
+                               fatal("%s line %d: Invalid environment name.",
+                                   filename, linenum);
+                       if (options->num_accept_env >= MAX_ACCEPT_ENV)
+                               fatal("%s line %d: too many allow env.",
+                                   filename, linenum);
+                       options->accept_env[options->num_accept_env++] =
+                           xstrdup(arg);
+               }
+               break;
+
+       case sPermitTunnel:
+               intptr = &options->permit_tun;
+               arg = strdelim(&cp);
+               if (!arg || *arg == '\0')
+                       fatal("%s line %d: Missing yes/point-to-point/"
+                           "ethernet/no argument.", filename, linenum);
+               value = 0;      /* silence compiler */
+               if (strcasecmp(arg, "ethernet") == 0)
+                       value = SSH_TUNMODE_ETHERNET;
+               else if (strcasecmp(arg, "point-to-point") == 0)
+                       value = SSH_TUNMODE_POINTOPOINT;
+               else if (strcasecmp(arg, "yes") == 0)
+                       value = SSH_TUNMODE_YES;
+               else if (strcasecmp(arg, "no") == 0)
+                       value = SSH_TUNMODE_NO;
+               else
+                       fatal("%s line %d: Bad yes/point-to-point/ethernet/"
+                           "no argument: %s", filename, linenum, arg);
+               if (*intptr == -1)
+                       *intptr = value;
+               break;
+
        case sDeprecated:
-               log("%s line %d: Deprecated option %s",
+               logit("%s line %d: Deprecated option %s",
+                   filename, linenum, arg);
+               while (arg)
+                   arg = strdelim(&cp);
+               break;
+
+       case sUnsupported:
+               logit("%s line %d: Unsupported option %s",
                    filename, linenum, arg);
                while (arg)
                    arg = strdelim(&cp);
@@ -901,26 +1015,50 @@ parse_flag:
 /* Reads the server configuration file. */
 
 void
-read_server_config(ServerOptions *options, const char *filename)
+load_server_config(const char *filename, Buffer *conf)
 {
+       char line[1024], *cp;
        FILE *f;
-       char line[1024];
-       int linenum;
-       int bad_options = 0;
 
-       f = fopen(filename, "r");
-       if (!f) {
+       debug2("%s: filename %s", __func__, filename);
+       if ((f = fopen(filename, "r")) == NULL) {
                perror(filename);
                exit(1);
        }
-       linenum = 0;
+       buffer_clear(conf);
        while (fgets(line, sizeof(line), f)) {
-               /* Update line number counter. */
-               linenum++;
-               if (process_server_config_line(options, line, filename, linenum) != 0)
-                       bad_options++;
+               /*
+                * Trim out comments and strip whitespace
+                * NB - preserve newlines, they are needed to reproduce
+                * line numbers later for error messages
+                */
+               if ((cp = strchr(line, '#')) != NULL)
+                       memcpy(cp, "\n", 2);
+               cp = line + strspn(line, " \t\r");
+
+               buffer_append(conf, cp, strlen(cp));
        }
+       buffer_append(conf, "\0", 1);
        fclose(f);
+       debug2("%s: done config len = %d", __func__, buffer_len(conf));
+}
+
+void
+parse_server_config(ServerOptions *options, const char *filename, Buffer *conf)
+{
+       int linenum, bad_options = 0;
+       char *cp, *obuf, *cbuf;
+
+       debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
+
+       obuf = cbuf = xstrdup(buffer_ptr(conf));
+       linenum = 1;
+       while ((cp = strsep(&cbuf, "\n")) != NULL) {
+               if (process_server_config_line(options, cp, filename,
+                   linenum++) != 0)
+                       bad_options++;
+       }
+       xfree(obuf);
        if (bad_options > 0)
                fatal("%s: terminating, %d bad configuration options",
                    filename, bad_options);
This page took 0.839336 seconds and 4 git commands to generate.