- (tim) [configure.ac] Some platforms need sys/types.h for arpa/nameser.h.

[openssh.git] / servconf.c

diff --git a/servconf.c b/servconf.c
index 02fae0fbe39defdd04f16ccfb70539b9d4e6ddc1..ddb34f9b92fb3855d8e0c47115316499444216e8 100644 (file)
--- a/servconf.c
+++ b/servconf.c
@@ -10,7 +10,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: servconf.c,v 1.135 2004/07/11 17:48:47 deraadt Exp $");
+RCSID("$OpenBSD: servconf.c,v 1.141 2005/05/16 15:30:51 markus Exp $");
 
 #include "ssh.h"
 #include "log.h"
@@ -26,8 +26,6 @@ RCSID("$OpenBSD: servconf.c,v 1.135 2004/07/11 17:48:47 deraadt 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;
 
@@ -45,6 +43,7 @@ initialize_server_options(ServerOptions *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;
@@ -258,7 +257,8 @@ typedef enum {
        sKerberosAuthentication, sKerberosOrLocalPasswd, sKerberosTicketCleanup,
        sKerberosGetAFSToken,
        sKerberosTgtPassing, sChallengeResponseAuthentication,
-       sPasswordAuthentication, sKbdInteractiveAuthentication, sListenAddress,
+       sPasswordAuthentication, sKbdInteractiveAuthentication,
+       sListenAddress, sAddressFamily,
        sPrintMotd, sPrintLastLog, sIgnoreRhosts,
        sX11Forwarding, sX11DisplayOffset, sX11UseLocalhost,
        sStrictModes, sEmptyPasswd, sTCPKeepAlive,
@@ -335,6 +335,7 @@ static struct {
        { "skeyauthentication", sChallengeResponseAuthentication }, /* alias */
        { "checkmail", sDeprecated },
        { "listenaddress", sListenAddress },
+       { "addressfamily", sAddressFamily },
        { "printmotd", sPrintMotd },
        { "printlastlog", sPrintLastLog },
        { "ignorerhosts", sIgnoreRhosts },
@@ -401,6 +402,8 @@ add_listen_addr(ServerOptions *options, char *addr, u_short port)
 
        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]);
@@ -416,7 +419,7 @@ 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, "%u", port);
@@ -437,6 +440,7 @@ process_server_config_line(ServerOptions *options, char *line,
        char *cp, **charptr, *arg, *p;
        int *intptr, value, i, n;
        ServerOpCodes opcode;
+       u_short port;
 
        cp = line;
        arg = strdelim(&cp);
@@ -509,39 +513,43 @@ 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)) {
-                       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:
@@ -720,7 +728,23 @@ parse_flag:
 
        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 sUseDNS:
                intptr = &options->use_dns;
@@ -974,18 +998,18 @@ void
 parse_server_config(ServerOptions *options, const char *filename, Buffer *conf)
 {
        int linenum, bad_options = 0;
-       char *cp, *cbuf;
+       char *cp, *obuf, *cbuf;
 
        debug2("%s: config %s len %d", __func__, filename, buffer_len(conf));
 
-       cbuf = xstrdup(buffer_ptr(conf));
-       linenum = 0;
-       while((cp = strsep(&cbuf, "\n")) != NULL) {
+       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++;
        }
-       free(cbuf);
+       xfree(obuf);
        if (bad_options > 0)
                fatal("%s: terminating, %d bad configuration options",
                    filename, bad_options);