Added anonymous client connections support.

[silc.git] / apps / silcd / packet_receive.c

diff --git a/apps/silcd/packet_receive.c b/apps/silcd/packet_receive.c
index 2068c18bdf8219b817f6efa9e57d528f6ba5cc76..d3f03aae0bca0667e643715008640924f39f2955 100644 (file)
--- a/apps/silcd/packet_receive.c
+++ b/apps/silcd/packet_receive.c
@@ -43,7 +43,7 @@ void silc_server_notify(SilcServer server,
   SilcClientEntry client = NULL, client2 = NULL;
   SilcServerEntry server_entry = NULL;
   SilcChannelClientEntry chl;
-  SilcIDCacheEntry cache;
+  SilcIDCacheEntry cache = NULL;
   SilcHashTableList htl;
   SilcUInt32 mode;
   unsigned char *tmp;
@@ -166,11 +166,11 @@ void silc_server_notify(SilcServer server,
        entry for the client. */
     client = silc_idlist_find_client_by_id(server->global_list, 
                                           client_id, server->server_type, 
-                                          NULL);
+                                          &cache);
     if (!client) {
       client = silc_idlist_find_client_by_id(server->local_list, 
                                             client_id, server->server_type,
-                                            NULL);
+                                            &cache);
       if (!client) {
        /* If router did not find the client the it is bogus */
        if (server->server_type != SILC_SERVER) {
@@ -239,6 +239,10 @@ void silc_server_notify(SilcServer server,
     channel->user_count++;
     channel->disabled = FALSE;
 
+    /* Make sure we don't expire clients that are on channel */
+    if (cache)
+      cache->expire = 0;
+
     /* Update statistics */
     if (server->server_type == SILC_ROUTER) {
       if (sock->type != SILC_SOCKET_TYPE_ROUTER)
@@ -2286,6 +2290,25 @@ SilcClientEntry silc_server_new_client(SilcServer server,
     snprintf(&nickname[strlen(nickname) - 1], 1, "%d", nickfail);
   }
 
+  /* If client marked as anonymous, scramble the username and hostname */
+  if (client->mode & SILC_UMODE_ANONYMOUS) {
+    char *scramble;
+
+    if (strlen(username) >= 2) {
+      username[0] = silc_rng_get_byte_fast(server->rng);
+      username[1] = silc_rng_get_byte_fast(server->rng);
+    }
+
+    scramble = silc_hash_babbleprint(server->sha1hash, username,
+                                    strlen(username));
+    scramble[5] = '@';
+    scramble[11] = '.';
+    memcpy(&scramble[16], ".silc", 5);
+    scramble[21] = '\0';
+    silc_free(username);
+    username = scramble;
+  }
+
   /* Update client entry */
   idata->status |= SILC_IDLIST_STATUS_REGISTERED;
   client->nickname = nickname;