]> andersk Git - openssh.git/blobdiff - servconf.c
- jakob@cvs.openbsd.org 2003/05/15 01:48:10
[openssh.git] / servconf.c
index 4b5b406a7c4621a698654345da3a0cc103d972a8..5076c5df6d4cc79384eda1bdcbb76e2ede3c3091 100644 (file)
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.107 2002/04/22 16:16:53 markus Exp $");
+RCSID("$OpenBSD: servconf.c,v 1.119 2003/05/15 01:48:10 jakob 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
+# ifdef HEIMDAL
+#  include <krb.h>
+# else
+/*
+ * XXX: 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
@@ -56,7 +60,7 @@ 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;
@@ -86,22 +90,18 @@ initialize_server_options(ServerOptions *options)
        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->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;
@@ -130,8 +130,8 @@ 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 +157,7 @@ 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)
@@ -198,22 +198,16 @@ 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->password_authentication == -1)
                options->password_authentication = 1;
        if (options->kbd_interactive_authentication == -1)
@@ -222,8 +216,12 @@ 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 = 1;
        if (options->allow_tcp_forwarding == -1)
                options->allow_tcp_forwarding = 1;
        if (options->gateway_ports == -1)
@@ -250,35 +248,37 @@ fill_default_server_options(ServerOptions *options)
        if (options->authorized_keys_file == NULL)
                options->authorized_keys_file = _PATH_SSH_USER_PERMITTED_KEYS;
 
-       /* 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)
        sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
-#endif
-#if defined(AFS) || defined(KRB5)
-       sKerberosTgtPassing,
-#endif
-#ifdef AFS
-       sAFSTokenPassing,
-#endif
-       sChallengeResponseAuthentication,
+       sKerberosTgtPassing, sAFSTokenPassing, sChallengeResponseAuthentication,
        sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
        sPrintMotd, sPrintLastLog, sIgnoreRhosts,
        sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
        sStrictModes, sEmptyPasswd, sKeepAlives,
-       sUseLogin, sAllowTcpForwarding,
+       sPermitUserEnvironment, sUseLogin, sAllowTcpForwarding, sCompression,
        sAllowUsers, sDenyUsers, sAllowGroups, sDenyGroups,
        sIgnoreUserKnownHosts, sCiphers, sMacs, sProtocol, sPidFile,
        sGatewayPorts, sPubkeyAuthentication, sXAuthLocation, sSubsystem, sMaxStartups,
@@ -295,7 +295,7 @@ static struct {
        ServerOpCodes opcode;
 } keywords[] = {
        /* Portable-specific options */
-       { "PAMAuthenticationViaKbdInt", sPAMAuthenticationViaKbdInt },
+       { "UsePAM", sUsePAM },
        /* Standard Options */
        { "port", sPort },
        { "hostkey", sHostKeyFile },
@@ -314,17 +314,11 @@ static struct {
        { "rsaauthentication", sRSAAuthentication },
        { "pubkeyauthentication", sPubkeyAuthentication },
        { "dsaauthentication", sPubkeyAuthentication },                 /* alias */
-#if defined(KRB4) || defined(KRB5)
        { "kerberosauthentication", sKerberosAuthentication },
        { "kerberosorlocalpasswd", sKerberosOrLocalPasswd },
        { "kerberosticketcleanup", sKerberosTicketCleanup },
-#endif
-#if defined(AFS) || defined(KRB5)
        { "kerberostgtpassing", sKerberosTgtPassing },
-#endif
-#ifdef AFS
        { "afstokenpassing", sAFSTokenPassing },
-#endif
        { "passwordauthentication", sPasswordAuthentication },
        { "kbdinteractiveauthentication", sKbdInteractiveAuthentication },
        { "challengeresponseauthentication", sChallengeResponseAuthentication },
@@ -341,7 +335,9 @@ static struct {
        { "xauthlocation", sXAuthLocation },
        { "strictmodes", sStrictModes },
        { "permitemptypasswords", sEmptyPasswd },
+       { "permituserenvironment", sPermitUserEnvironment },
        { "uselogin", sUseLogin },
+       { "compression", sCompression },
        { "keepalive", sKeepAlives },
        { "allowtcpforwarding", sAllowTcpForwarding },
        { "allowusers", sAllowUsers },
@@ -409,7 +405,7 @@ add_one_listen_addr(ServerOptions *options, char *addr, u_short port)
        hints.ai_family = IPv4or6;
        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>",
@@ -425,9 +421,8 @@ process_server_config_line(ServerOptions *options, char *line,
     const char *filename, int linenum)
 {
        char *cp, **charptr, *arg, *p;
-       int *intptr, value;
+       int *intptr, value, i, n;
        ServerOpCodes opcode;
-       int i, n;
 
        cp = line;
        arg = strdelim(&cp);
@@ -441,8 +436,8 @@ 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 */
@@ -628,7 +623,7 @@ 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 +635,14 @@ 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;
                goto parse_flag;
-#endif
-#ifdef AFS
+
        case sAFSTokenPassing:
                intptr = &options->afs_token_passing;
                goto parse_flag;
-#endif
 
        case sPasswordAuthentication:
                intptr = &options->password_authentication;
@@ -700,10 +692,18 @@ parse_flag:
                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;
+               goto parse_flag;
+
        case sGatewayPorts:
                intptr = &options->gateway_ports;
                goto parse_flag;
@@ -747,7 +747,8 @@ 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 +757,8 @@ 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 +767,8 @@ 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;
 
@@ -882,7 +885,7 @@ parse_flag:
                goto parse_int;
 
        case sDeprecated:
-               log("%s line %d: Deprecated option %s",
+               logit("%s line %d: Deprecated option %s",
                    filename, linenum, arg);
                while (arg)
                    arg = strdelim(&cp);
@@ -903,11 +906,11 @@ parse_flag:
 void
 read_server_config(ServerOptions *options, const char *filename)
 {
-       FILE *f;
+       int linenum, bad_options = 0;
        char line[1024];
-       int linenum;
-       int bad_options = 0;
+       FILE *f;
 
+       debug2("read_server_config: filename %s", filename);
        f = fopen(filename, "r");
        if (!f) {
                perror(filename);
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