]> andersk Git - openssh.git/blobdiff - auth-options.c
- (djm) RCSID sync w/ OpenBSD
[openssh.git] / auth-options.c
index 7ce1e4b0c5cc3584ff905055f738fb0c4e71ae0c..d8976b1728027c927400851c84f2d3b48506f6b6 100644 (file)
@@ -10,9 +10,8 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: auth-options.c,v 1.15 2001/03/16 19:06:28 markus Exp $");
+RCSID("$OpenBSD: auth-options.c,v 1.27 2003/04/08 20:21:28 itojun Exp $");
 
-#include "packet.h"
 #include "xmalloc.h"
 #include "match.h"
 #include "log.h"
@@ -20,6 +19,9 @@ RCSID("$OpenBSD: auth-options.c,v 1.15 2001/03/16 19:06:28 markus Exp $");
 #include "channels.h"
 #include "auth-options.h"
 #include "servconf.h"
+#include "misc.h"
+#include "monitor_wrap.h"
+#include "auth.h"
 
 /* Flags set authorized_keys flags */
 int no_port_forwarding_flag = 0;
@@ -53,6 +55,7 @@ auth_clear_options(void)
                forced_command = NULL;
        }
        channel_clear_permitted_opens();
+       auth_debug_reset();
 }
 
 /*
@@ -74,28 +77,28 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
        while (*opts && *opts != ' ' && *opts != '\t') {
                cp = "no-port-forwarding";
                if (strncasecmp(opts, cp, strlen(cp)) == 0) {
-                       packet_send_debug("Port forwarding disabled.");
+                       auth_debug_add("Port forwarding disabled.");
                        no_port_forwarding_flag = 1;
                        opts += strlen(cp);
                        goto next_option;
                }
                cp = "no-agent-forwarding";
                if (strncasecmp(opts, cp, strlen(cp)) == 0) {
-                       packet_send_debug("Agent forwarding disabled.");
+                       auth_debug_add("Agent forwarding disabled.");
                        no_agent_forwarding_flag = 1;
                        opts += strlen(cp);
                        goto next_option;
                }
                cp = "no-X11-forwarding";
                if (strncasecmp(opts, cp, strlen(cp)) == 0) {
-                       packet_send_debug("X11 forwarding disabled.");
+                       auth_debug_add("X11 forwarding disabled.");
                        no_x11_forwarding_flag = 1;
                        opts += strlen(cp);
                        goto next_option;
                }
                cp = "no-pty";
                if (strncasecmp(opts, cp, strlen(cp)) == 0) {
-                       packet_send_debug("Pty allocation disabled.");
+                       auth_debug_add("Pty allocation disabled.");
                        no_pty_flag = 1;
                        opts += strlen(cp);
                        goto next_option;
@@ -118,19 +121,20 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
                        if (!*opts) {
                                debug("%.100s, line %lu: missing end quote",
                                    file, linenum);
-                               packet_send_debug("%.100s, line %lu: missing end quote",
+                               auth_debug_add("%.100s, line %lu: missing end quote",
                                    file, linenum);
                                xfree(forced_command);
                                forced_command = NULL;
                                goto bad_option;
                        }
                        forced_command[i] = 0;
-                       packet_send_debug("Forced command: %.900s", forced_command);
+                       auth_debug_add("Forced command: %.900s", forced_command);
                        opts++;
                        goto next_option;
                }
                cp = "environment=\"";
-               if (strncasecmp(opts, cp, strlen(cp)) == 0) {
+               if (options.permit_user_env &&
+                   strncasecmp(opts, cp, strlen(cp)) == 0) {
                        char *s;
                        struct envstring *new_envstring;
 
@@ -150,13 +154,13 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
                        if (!*opts) {
                                debug("%.100s, line %lu: missing end quote",
                                    file, linenum);
-                               packet_send_debug("%.100s, line %lu: missing end quote",
+                               auth_debug_add("%.100s, line %lu: missing end quote",
                                    file, linenum);
                                xfree(s);
                                goto bad_option;
                        }
                        s[i] = 0;
-                       packet_send_debug("Adding to environment: %.900s", s);
+                       auth_debug_add("Adding to environment: %.900s", s);
                        debug("Adding to environment: %.900s", s);
                        opts++;
                        new_envstring = xmalloc(sizeof(struct envstring));
@@ -167,10 +171,9 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
                }
                cp = "from=\"";
                if (strncasecmp(opts, cp, strlen(cp)) == 0) {
-                       int mname, mip;
                        const char *remote_ip = get_remote_ipaddr();
                        const char *remote_host = get_canonical_hostname(
-                           options.reverse_mapping_check);
+                           options.verify_reverse_mapping);
                        char *patterns = xmalloc(strlen(opts) + 1);
 
                        opts += strlen(cp);
@@ -188,42 +191,34 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
                        if (!*opts) {
                                debug("%.100s, line %lu: missing end quote",
                                    file, linenum);
-                               packet_send_debug("%.100s, line %lu: missing end quote",
+                               auth_debug_add("%.100s, line %lu: missing end quote",
                                    file, linenum);
                                xfree(patterns);
                                goto bad_option;
                        }
                        patterns[i] = 0;
                        opts++;
-                       /*
-                        * Deny access if we get a negative
-                        * match for the hostname or the ip
-                        * or if we get not match at all
-                        */
-                       mname = match_hostname(remote_host, patterns,
-                           strlen(patterns));
-                       mip = match_hostname(remote_ip, patterns,
-                           strlen(patterns));
-                       xfree(patterns);
-                       if (mname == -1 || mip == -1 ||
-                           (mname != 1 && mip != 1)) {
-                               log("Authentication tried for %.100s with "
+                       if (match_host_and_ip(remote_host, remote_ip,
+                           patterns) != 1) {
+                               xfree(patterns);
+                               logit("Authentication tried for %.100s with "
                                    "correct key but not from a permitted "
                                    "host (host=%.200s, ip=%.200s).",
                                    pw->pw_name, remote_host, remote_ip);
-                               packet_send_debug("Your host '%.200s' is not "
+                               auth_debug_add("Your host '%.200s' is not "
                                    "permitted to use this key for login.",
                                    remote_host);
                                /* deny access */
                                return 0;
                        }
+                       xfree(patterns);
                        /* Host name matches. */
                        goto next_option;
                }
                cp = "permitopen=\"";
                if (strncasecmp(opts, cp, strlen(cp)) == 0) {
+                       char host[256], sport[6];
                        u_short port;
-                       char *c, *ep;
                        char *patterns = xmalloc(strlen(opts) + 1);
 
                        opts += strlen(cp);
@@ -241,34 +236,32 @@ auth_parse_options(struct passwd *pw, char *opts, char *file, u_long linenum)
                        if (!*opts) {
                                debug("%.100s, line %lu: missing end quote",
                                    file, linenum);
-                               packet_send_debug("%.100s, line %lu: missing end quote",
+                               auth_debug_add("%.100s, line %lu: missing end quote",
                                    file, linenum);
                                xfree(patterns);
                                goto bad_option;
                        }
                        patterns[i] = 0;
                        opts++;
-                       c = strchr(patterns, ':');
-                       if (c == NULL) {
-                               debug("%.100s, line %lu: permitopen: missing colon <%.100s>",
-                                   file, linenum, patterns);
-                               packet_send_debug("%.100s, line %lu: missing colon",
-                                   file, linenum);
+                       if (sscanf(patterns, "%255[^:]:%5[0-9]", host, sport) != 2 &&
+                           sscanf(patterns, "%255[^/]/%5[0-9]", host, sport) != 2) {
+                               debug("%.100s, line %lu: Bad permitopen specification "
+                                   "<%.100s>", file, linenum, patterns);
+                               auth_debug_add("%.100s, line %lu: "
+                                   "Bad permitopen specification", file, linenum);
                                xfree(patterns);
                                goto bad_option;
                        }
-                       *c = 0;
-                       c++;
-                       port = strtol(c, &ep, 0);
-                       if (c == ep) {
-                               debug("%.100s, line %lu: permitopen: missing port <%.100s>",
-                                   file, linenum, patterns);
-                               packet_send_debug("%.100s, line %lu: missing port",
-                                   file, linenum);
+                       if ((port = a2port(sport)) == 0) {
+                               debug("%.100s, line %lu: Bad permitopen port <%.100s>",
+                                   file, linenum, sport);
+                               auth_debug_add("%.100s, line %lu: "
+                                   "Bad permitopen port", file, linenum);
                                xfree(patterns);
                                goto bad_option;
                        }
-                       channel_add_permitted_opens(patterns, port);
+                       if (options.allow_tcp_forwarding)
+                               channel_add_permitted_opens(host, port);
                        xfree(patterns);
                        goto next_option;
                }
@@ -286,14 +279,22 @@ next_option:
                opts++;
                /* Process the next option. */
        }
+
+       if (!use_privsep)
+               auth_debug_send();
+
        /* grant access */
        return 1;
 
 bad_option:
-       log("Bad options in %.100s file, line %lu: %.50s",
+       logit("Bad options in %.100s file, line %lu: %.50s",
            file, linenum, opts);
-       packet_send_debug("Bad options in %.100s file, line %lu: %.50s",
+       auth_debug_add("Bad options in %.100s file, line %lu: %.50s",
            file, linenum, opts);
+
+       if (!use_privsep)
+               auth_debug_send();
+
        /* deny access */
        return 0;
 }
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