X-Git-Url: http://git.silcnet.org/gitweb/?p=silc.git;a=blobdiff_plain;f=lib%2Fsilcclient%2Fcommand_reply.c;h=ede887535fdcdc97b6219d0c8d73f11b45867021;hp=cf4e151bbff63356ebd77a56c6983638adb67417;hb=HEAD;hpb=5e0534a2c468177c5c2b0c503f529380e8dd3df4

diff --git a/lib/silcclient/command_reply.c b/lib/silcclient/command_reply.c
index cf4e151b..ede88753 100644
--- a/lib/silcclient/command_reply.c
+++ b/lib/silcclient/command_reply.c
@@ -42,7 +42,7 @@ do {								\
   SILC_LOG_DEBUG(("%s", silc_get_command_name(cmd->cmd)));		\
   if (cmd->error != SILC_STATUS_OK) {					\
     if (cmd->verbose)							\
-      SAY(cmd->conn->client, cmd->conn, SILC_CLIENT_MESSAGE_ERROR,	\
+      SAY(cmd->conn->client, cmd->conn, SILC_CLIENT_MESSAGE_COMMAND_ERROR, \
 	  msg "%s", silc_get_status_message(cmd->error));		\
     ERROR_CALLBACK(cmd->error);						\
     silc_client_command_process_error(cmd, state_context, cmd->error);	\
@@ -118,6 +118,7 @@ static void silc_client_command_process_error(SilcClientCommandContext cmd,
     client_entry = silc_client_get_client_by_id(client, conn, &id.u.client_id);
     if (client_entry) {
       silc_client_remove_from_channels(client, conn, client_entry);
+      client_entry->internal.valid = FALSE;
       silc_client_del_client(client, conn, client_entry);
       silc_client_unref_client(client, conn, client_entry);
     }
@@ -127,7 +128,7 @@ static void silc_client_command_process_error(SilcClientCommandContext cmd,
   if (cmd->error == SILC_STATUS_ERR_NO_SUCH_CHANNEL_ID) {
     SilcChannelEntry channel;
 
-    /* Remove unknown client entry from cache */
+    /* Remove unknown channel entry from cache */
     if (!silc_argument_get_decoded(args, 2, SILC_ARGUMENT_ID, &id, NULL))
       return;
 
@@ -143,7 +144,7 @@ static void silc_client_command_process_error(SilcClientCommandContext cmd,
   if (cmd->error == SILC_STATUS_ERR_NO_SUCH_SERVER_ID) {
     SilcServerEntry server_entry;
 
-    /* Remove unknown client entry from cache */
+    /* Remove unknown server entry from cache */
     if (!silc_argument_get_decoded(args, 2, SILC_ARGUMENT_ID, &id, NULL))
       return;
 
@@ -199,7 +200,10 @@ SILC_FSM_STATE(silc_client_command_reply)
     return SILC_FSM_FINISH;
   }
 
-  /* Signal command thread that command reply has arrived */
+  /* Signal command thread that command reply has arrived.  We continue
+     command reply processing synchronously because we save the command
+     payload into state context.  No other reply may arrive to this command
+     while we're processing this reply. */
   silc_fsm_set_state_context(&cmd->thread, payload);
   silc_fsm_next(&cmd->thread, silc_client_command_reply_process);
   silc_fsm_continue_sync(&cmd->thread);
@@ -218,7 +222,7 @@ SILC_FSM_STATE(silc_client_command_reply_wait)
   /** Wait for command reply */
   silc_fsm_set_state_context(fsm, NULL);
   silc_fsm_next_later(fsm, silc_client_command_reply_timeout,
-		      cmd->cmd != SILC_COMMAND_PING ? 25 : 60, 0);
+		      cmd->cmd != SILC_COMMAND_PING ? 40 : 60, 0);
   return SILC_FSM_WAIT;
 }
 
@@ -511,7 +515,7 @@ SILC_FSM_STATE(silc_client_command_reply_whois)
 
   silc_client_unref_client(client, conn, client_entry);
   if (has_channels) {
-    silc_dlist_uninit(channel_list);
+    silc_channel_payload_list_free(channel_list);
     silc_free(umodes);
   }
 
@@ -674,7 +678,8 @@ SILC_FSM_STATE(silc_client_command_reply_identify)
     }
 
     /* Notify application */
-    silc_client_command_callback(cmd, channel_entry, name, info);
+    silc_client_command_callback(cmd, channel_entry,
+				 channel_entry->channel_name, info);
     silc_client_unref_channel(client, conn, channel_entry);
     break;
   }
@@ -729,6 +734,7 @@ SILC_FSM_STATE(silc_client_command_reply_nick)
   if (!silc_client_change_nickname(client, conn, conn->local_entry,
 				   nick, &id.u.client_id, idp, idp_len)) {
     ERROR_CALLBACK(SILC_STATUS_ERR_BAD_NICKNAME);
+    silc_rwlock_unlock(conn->local_entry->internal.lock);
     goto out;
   }
 
@@ -797,7 +803,8 @@ SILC_FSM_STATE(silc_client_command_reply_list)
   }
 
   /* Notify application */
-  silc_client_command_callback(cmd, channel_entry, name, topic, usercount);
+  silc_client_command_callback(cmd, channel_entry, channel_entry->channel_name,
+			       topic, usercount);
 
  out:
   silc_client_unref_channel(client, conn, channel_entry);
@@ -816,7 +823,7 @@ SILC_FSM_STATE(silc_client_command_reply_topic)
   SilcClient client = conn->client;
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   char *topic;
   SilcUInt32 len;
   SilcID id;
@@ -853,6 +860,7 @@ SILC_FSM_STATE(silc_client_command_reply_topic)
   silc_client_command_callback(cmd, channel, channel->topic);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }
@@ -868,7 +876,7 @@ SILC_FSM_STATE(silc_client_command_reply_invite)
   SilcClient client = conn->client;
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   unsigned char *tmp;
   SilcUInt32 len;
   SilcArgumentPayload invite_args = NULL;
@@ -903,6 +911,7 @@ SILC_FSM_STATE(silc_client_command_reply_invite)
     silc_argument_payload_free(invite_args);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }
@@ -939,6 +948,7 @@ SILC_FSM_STATE(silc_client_command_reply_kill)
   /* Remove the client */
   if (client_entry) {
     silc_client_remove_from_channels(client, conn, client_entry);
+    client_entry->internal.valid = FALSE;
     silc_client_del_client(client, conn, client_entry);
     silc_client_unref_client(client, conn, client_entry);
   }
@@ -1103,11 +1113,34 @@ silc_client_command_reply_join_resolved(SilcClient client,
 {
   SilcClientCommandContext cmd = context;
   SilcChannelEntry channel = cmd->context;
+  SilcCommandPayload payload = silc_fsm_get_state_context(&cmd->thread);
+  SilcArgumentPayload args = silc_command_get_args(payload);
+  SilcUInt32 list_count;
+  unsigned char *tmp;
+  char msg[512];
+
+  if (!clients) {
+    silc_snprintf(msg, sizeof(msg), "Error resolving channel %s user list",
+		  channel->channel_name);
+    SAY(client, conn, SILC_CLIENT_MESSAGE_COMMAND_ERROR, msg);
+  } else {
+    tmp = silc_argument_get_arg_type(args, 12, NULL);
+    if (tmp) {
+      SILC_GET32_MSB(list_count, tmp);
+      if (list_count - silc_dlist_count(clients) > 5) {
+	silc_snprintf(msg, sizeof(msg),
+		      "Channel %s user list was not fully resolved. "
+		      "The channel may not be fully synced.",
+		      channel->channel_name);
+	SAY(client, conn, SILC_CLIENT_MESSAGE_WARNING, msg);
+      }
+    }
+  }
 
   channel->internal.resolve_cmd_ident = 0;
   silc_client_unref_channel(client, conn, channel);
 
-  SILC_FSM_CALL_CONTINUE(&cmd->thread);
+  SILC_FSM_CALL_CONTINUE_SYNC(&cmd->thread);
 }
 
 
@@ -1164,7 +1197,7 @@ SILC_FSM_STATE(silc_client_command_reply_join)
 
   /* Get the list count */
   tmp = silc_argument_get_arg_type(args, 12, &len);
-  if (!tmp) {
+  if (!tmp || len != 4) {
     ERROR_CALLBACK(SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
     goto out;
   }
@@ -1202,7 +1235,6 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   /* Add clients we received in the reply to the channel */
   for (i = 0; i < list_count; i++) {
     SilcUInt16 idp_len;
-    SilcUInt32 mode;
     SilcID id;
     SilcClientEntry client_entry;
 
@@ -1217,13 +1249,12 @@ SILC_FSM_STATE(silc_client_command_reply_join)
 
     /* Get client entry */
     client_entry = silc_client_get_client_by_id(client, conn, &id.u.client_id);
-    if (!client_entry)
-      continue;
-
-    /* Join client to the channel */
-    silc_rwlock_wrlock(client_entry->internal.lock);
-    silc_client_add_to_channel(client, conn, channel, client_entry, mode);
-    silc_rwlock_unlock(client_entry->internal.lock);
+    if (client_entry && client_entry->internal.valid) {
+      /* Join client to the channel */
+      silc_rwlock_wrlock(client_entry->internal.lock);
+      silc_client_add_to_channel(client, conn, channel, client_entry, mode);
+      silc_rwlock_unlock(client_entry->internal.lock);
+    }
     silc_client_unref_client(client, conn, client_entry);
 
     if (!silc_buffer_pull(&client_id_list, idp_len)) {
@@ -1241,7 +1272,7 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   if (hmac) {
     if (!silc_hmac_alloc(hmac, NULL, &channel->internal.hmac)) {
       if (cmd->verbose)
-	SAY(client, conn, SILC_CLIENT_MESSAGE_ERROR,
+	SAY(client, conn, SILC_CLIENT_MESSAGE_COMMAND_ERROR,
 	    "Cannot join channel: Unsupported HMAC `%s'", hmac);
       ERROR_CALLBACK(SILC_STATUS_ERR_UNKNOWN_ALGORITHM);
       silc_rwlock_unlock(channel->internal.lock);
@@ -1250,16 +1281,21 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   }
 
   /* Get channel mode */
-  tmp = silc_argument_get_arg_type(args, 5, NULL);
-  if (tmp)
+  tmp = silc_argument_get_arg_type(args, 5, &len);
+  if (tmp && len == 4)
     SILC_GET32_MSB(mode, tmp);
   channel->mode = mode;
 
   /* Get channel key and save it */
   tmp = silc_argument_get_arg_type(args, 7, &len);
   if (tmp) {
-    silc_buffer_set(&keyp, tmp, len);
-    silc_client_save_channel_key(client, conn, &keyp, channel);
+    /* If channel key already exists on the channel then while resolving
+       the user list we have already received new key from server.  Don't
+       replace it with this old key. */
+    if (!channel->internal.send_key) {
+      silc_buffer_set(&keyp, tmp, len);
+      silc_client_save_channel_key(client, conn, &keyp, channel);
+    }
   }
 
   /* Get topic */
@@ -1288,7 +1324,7 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   /* Get channel public key list */
   tmp = silc_argument_get_arg_type(args, 16, &len);
   if (tmp)
-    silc_client_channel_save_public_keys(channel, tmp, len);
+    silc_client_channel_save_public_keys(channel, tmp, len, FALSE);
 
   /* Set current channel */
   conn->current_channel = channel;
@@ -1300,7 +1336,7 @@ SILC_FSM_STATE(silc_client_command_reply_join)
   silc_hash_table_list(channel->user_list, &htl);
 
   /* Notify application */
-  silc_client_command_callback(cmd, channel_name, channel, mode, &htl,
+  silc_client_command_callback(cmd, channel->channel_name, channel, mode, &htl,
 			       topic, cipher, hmac, channel->founder_key,
 			       channel->channel_pubkeys, channel->user_limit);
 
@@ -1415,10 +1451,9 @@ SILC_FSM_STATE(silc_client_command_reply_cmode)
   SilcArgumentPayload args = silc_command_get_args(payload);
   unsigned char *tmp;
   SilcUInt32 mode;
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   SilcUInt32 len;
   SilcPublicKey public_key = NULL;
-  SilcDList channel_pubkeys = NULL;
   SilcID id;
 
   /* Sanity checks */
@@ -1438,24 +1473,21 @@ SILC_FSM_STATE(silc_client_command_reply_cmode)
     goto out;
   }
 
+  /* Get founder public key */
+  tmp = silc_argument_get_arg_type(args, 4, &len);
+  if (tmp)
+    silc_public_key_payload_decode(tmp, len, &public_key);
+
   /* Get channel mode */
   tmp = silc_argument_get_arg_type(args, 3, &len);
   if (!tmp || len != 4) {
     ERROR_CALLBACK(SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
     goto out;
   }
-
-  /* Get founder public key */
-  tmp = silc_argument_get_arg_type(args, 4, &len);
-  if (tmp)
-    silc_public_key_payload_decode(tmp, len, &public_key);
+  SILC_GET32_MSB(mode, tmp);
 
   silc_rwlock_wrlock(channel->internal.lock);
 
-  /* Save the mode */
-  SILC_GET32_MSB(mode, tmp);
-  channel->mode = mode;
-
   /* Get user limit */
   tmp = silc_argument_get_arg_type(args, 6, &len);
   if (tmp && len == 4)
@@ -1466,17 +1498,35 @@ SILC_FSM_STATE(silc_client_command_reply_cmode)
   /* Get channel public key(s) */
   tmp = silc_argument_get_arg_type(args, 5, &len);
   if (tmp)
-    silc_client_channel_save_public_keys(channel, tmp, len);
+    silc_client_channel_save_public_keys(channel, tmp, len, FALSE);
+  else if (channel->mode & SILC_CHANNEL_MODE_CHANNEL_AUTH)
+    silc_client_channel_save_public_keys(channel, NULL, 0, TRUE);
+
+  /* Save the mode */
+  channel->mode = mode;
 
   silc_rwlock_unlock(channel->internal.lock);
 
   /* Notify application */
   silc_client_command_callback(cmd, channel, mode, public_key,
-			       channel_pubkeys, channel->user_limit);
+			       channel->channel_pubkeys, channel->user_limit);
 
-  silc_argument_list_free(channel_pubkeys, SILC_ARGUMENT_PUBLIC_KEY);
+  silc_rwlock_wrlock(channel->internal.lock);
+
+  /* If founder key changed, update it */
+  if (public_key &&
+      (!channel->founder_key ||
+       !silc_pkcs_public_key_compare(public_key, channel->founder_key))) {
+    if (channel->founder_key)
+      silc_pkcs_public_key_free(channel->founder_key);
+    channel->founder_key = public_key;
+    public_key = NULL;
+  }
+
+  silc_rwlock_unlock(channel->internal.lock);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   if (public_key)
     silc_pkcs_public_key_free(public_key);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
@@ -1495,7 +1545,7 @@ SILC_FSM_STATE(silc_client_command_reply_cumode)
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
   SilcClientEntry client_entry;
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   SilcChannelUser chu;
   unsigned char *modev;
   SilcUInt32 len, mode;
@@ -1552,6 +1602,7 @@ SILC_FSM_STATE(silc_client_command_reply_cumode)
   silc_client_unref_client(client, conn, client_entry);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }
@@ -1566,7 +1617,7 @@ SILC_FSM_STATE(silc_client_command_reply_kick)
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
   SilcClientEntry client_entry;
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   SilcID id;
 
   /* Sanity checks */
@@ -1605,6 +1656,7 @@ SILC_FSM_STATE(silc_client_command_reply_kick)
   silc_client_unref_client(client, conn, client_entry);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }
@@ -1621,6 +1673,9 @@ SILC_FSM_STATE(silc_client_command_reply_silcoper)
   CHECK_STATUS("Cannot change mode: ");
   CHECK_ARGS(1, 1);
 
+  /* Set user mode */
+  cmd->conn->local_entry->mode |= SILC_UMODE_ROUTER_OPERATOR;
+
   /* Notify application */
   silc_client_command_callback(cmd);
 
@@ -1640,6 +1695,9 @@ SILC_FSM_STATE(silc_client_command_reply_oper)
   CHECK_STATUS("Cannot change mode: ");
   CHECK_ARGS(1, 1);
 
+  /* Set user mode */
+  cmd->conn->local_entry->mode |= SILC_UMODE_SERVER_OPERATOR;
+
   /* Notify application */
   silc_client_command_callback(cmd);
 
@@ -1706,7 +1764,7 @@ SILC_FSM_STATE(silc_client_command_reply_ban)
   SilcClient client = conn->client;
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
-  SilcChannelEntry channel;
+  SilcChannelEntry channel = NULL;
   unsigned char *tmp;
   SilcUInt32 len;
   SilcArgumentPayload invite_args = NULL;
@@ -1741,6 +1799,7 @@ SILC_FSM_STATE(silc_client_command_reply_ban)
     silc_argument_payload_free(invite_args);
 
  out:
+  silc_client_unref_channel(client, conn, channel);
   silc_fsm_next(fsm, silc_client_command_reply_processed);
   return SILC_FSM_CONTINUE;
 }
@@ -1757,6 +1816,8 @@ SILC_FSM_STATE(silc_client_command_reply_leave)
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
   SilcChannelEntry channel;
+  SilcCipher key;
+  SilcHmac hmac;
   SilcID id;
 
   /* Sanity checks */
@@ -1782,6 +1843,32 @@ SILC_FSM_STATE(silc_client_command_reply_leave)
   /* Notify application */
   silc_client_command_callback(cmd, channel);
 
+  /* Remove old keys and stuff.  The channel may remain even after leaving
+     but we want to remove these always. */
+  if (channel->internal.send_key)
+    silc_cipher_free(channel->internal.send_key);
+  channel->internal.send_key = NULL;
+  if (channel->internal.receive_key)
+    silc_cipher_free(channel->internal.receive_key);
+  channel->internal.receive_key = NULL;
+  if (channel->internal.hmac)
+    silc_hmac_free(channel->internal.hmac);
+  channel->internal.hmac = NULL;
+  if (channel->internal.old_channel_keys) {
+    silc_dlist_start(channel->internal.old_channel_keys);
+    while ((key = silc_dlist_get(channel->internal.old_channel_keys)))
+      silc_cipher_free(key);
+    silc_dlist_uninit(channel->internal.old_channel_keys);
+  }
+  channel->internal.old_channel_keys = NULL;
+  if (channel->internal.old_hmacs) {
+    silc_dlist_start(channel->internal.old_hmacs);
+    while ((hmac = silc_dlist_get(channel->internal.old_hmacs)))
+      silc_hmac_free(hmac);
+    silc_dlist_uninit(channel->internal.old_hmacs);
+  }
+  channel->internal.old_hmacs = NULL;
+
   /* Now delete the channel. */
   silc_client_empty_channel(client, conn, channel);
   silc_client_del_channel(client, conn, channel);
@@ -1841,8 +1928,8 @@ SILC_FSM_STATE(silc_client_command_reply_users)
   SilcCommandPayload payload = state_context;
   SilcArgumentPayload args = silc_command_get_args(payload);
   unsigned char *tmp;
-  SilcUInt32 tmp_len, list_count;
-  SilcUInt16 idp_len, mode;
+  SilcUInt32 tmp_len, list_count, mode;
+  SilcUInt16 idp_len;
   SilcHashTableList htl;
   SilcBufferStruct client_id_list, client_mode_list;
   SilcChannelEntry channel = NULL;
@@ -1921,7 +2008,7 @@ SILC_FSM_STATE(silc_client_command_reply_users)
     /* Save the client on this channel.  Unknown clients are ignored as they
        clearly do not exist since the resolving didn't find them. */
     client_entry = silc_client_get_client_by_id(client, conn, &id.u.client_id);
-    if (client_entry) {
+    if (client_entry && client_entry->internal.valid) {
       silc_rwlock_wrlock(client_entry->internal.lock);
       silc_client_add_to_channel(client, conn, channel, client_entry, mode);
       silc_rwlock_unlock(client_entry->internal.lock);
@@ -1938,6 +2025,8 @@ SILC_FSM_STATE(silc_client_command_reply_users)
     }
   }
 
+  silc_rwlock_unlock(channel->internal.lock);
+
   /* Notify application */
   silc_hash_table_list(channel->user_list, &htl);
   silc_client_command_callback(cmd, channel, &htl);
@@ -1985,6 +2074,8 @@ SILC_FSM_STATE(silc_client_command_reply_getkey)
     goto out;
   }
   if (!silc_public_key_payload_decode(tmp, len, &public_key)) {
+    SAY(client, conn, SILC_CLIENT_MESSAGE_COMMAND_ERROR,
+        "Cannot decode public key: malformed/unsupported public key");
     ERROR_CALLBACK(SILC_STATUS_ERR_NOT_ENOUGH_PARAMS);
     goto out;
   }