X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=lib%2Fsilcclient%2Fclient_channel.c;h=4492153c0320b9d264edafb04d543c0bbbe6c09a;hb=03df183a5ada5bad0eed82b78d93ca6f4fd51213;hp=e7753b9400e8c99fec30b2043739ea3bd89c9c49;hpb=6f80b44621a19bc96e693e637b363a2d41e1f4a9;p=silc.git

diff --git a/lib/silcclient/client_channel.c b/lib/silcclient/client_channel.c
index e7753b94..4492153c 100644
--- a/lib/silcclient/client_channel.c
+++ b/lib/silcclient/client_channel.c
@@ -94,12 +94,12 @@ SilcBool silc_client_send_channel_message(SilcClient client,
       channel->internal.curr_key = key;
     } else {
       /* Use normal channel key generated by the server */
-      cipher = channel->internal.channel_key;
+      cipher = channel->internal.send_key;
       hmac = channel->internal.hmac;
     }
   } else {
     /* Use normal channel key generated by the server */
-    cipher = channel->internal.channel_key;
+    cipher = channel->internal.send_key;
     hmac = channel->internal.hmac;
   }
 
@@ -163,6 +163,9 @@ SILC_FSM_STATE(silc_client_channel_message)
 
   SILC_LOG_DEBUG(("Received channel message"));
 
+  SILC_LOG_HEXDUMP(("Channel message"), silc_buffer_data(buffer),
+		   silc_buffer_len(buffer));
+
   if (silc_unlikely(packet->dst_id_type != SILC_ID_CHANNEL)) {
     /** Invalid packet */
     silc_fsm_next(fsm, silc_client_channel_message_error);
@@ -221,7 +224,7 @@ SILC_FSM_STATE(silc_client_channel_message)
     /* Parse the channel message payload. This also decrypts the payload */
     payload = silc_message_payload_parse(silc_buffer_data(buffer),
 					 silc_buffer_len(buffer), FALSE,
-					 FALSE, channel->internal.channel_key,
+					 FALSE, channel->internal.receive_key,
 					 channel->internal.hmac, NULL,
 					 FALSE, NULL);
 
@@ -262,7 +265,7 @@ SILC_FSM_STATE(silc_client_channel_message)
       payload = silc_message_payload_parse(silc_buffer_data(buffer),
 					   silc_buffer_len(buffer),
 					   FALSE, FALSE,
-					   channel->internal.channel_key,
+					   channel->internal.receive_key,
 					   channel->internal.hmac, NULL,
 					   FALSE, NULL);
 
@@ -390,7 +393,7 @@ SilcBool silc_client_save_channel_key(SilcClient client,
     channel->internal.old_hmacs = silc_dlist_init();
   if (channel->internal.old_channel_keys && channel->internal.old_hmacs) {
     silc_dlist_add(channel->internal.old_channel_keys,
-		   channel->internal.channel_key);
+		   channel->internal.receive_key);
     silc_dlist_add(channel->internal.old_hmacs, channel->internal.hmac);
     silc_schedule_task_add_timeout(client->schedule,
 				   silc_client_save_channel_key_rekey,
@@ -399,7 +402,17 @@ SilcBool silc_client_save_channel_key(SilcClient client,
 
   /* Get channel cipher */
   cipher = silc_channel_key_get_cipher(payload, NULL);
-  if (!silc_cipher_alloc(cipher, &channel->internal.channel_key)) {
+  if (!silc_cipher_alloc(cipher, &channel->internal.send_key)) {
+    client->internal->ops->say(
+			   conn->client, conn,
+			   SILC_CLIENT_MESSAGE_AUDIT,
+			   "Cannot talk to channel: unsupported cipher %s",
+			   cipher);
+    silc_client_unref_channel(client, conn, channel);
+    silc_channel_key_payload_free(payload);
+    return FALSE;
+  }
+  if (!silc_cipher_alloc(cipher, &channel->internal.receive_key)) {
     client->internal->ops->say(
 			   conn->client, conn,
 			   SILC_CLIENT_MESSAGE_AUDIT,
@@ -410,9 +423,10 @@ SilcBool silc_client_save_channel_key(SilcClient client,
     return FALSE;
   }
 
-  /* Set the cipher key */
+  /* Set the cipher key.  Both sending and receiving keys are same */
   key = silc_channel_key_get_key(payload, &tmp_len);
-  silc_cipher_set_key(channel->internal.channel_key, key, tmp_len * 8, TRUE);
+  silc_cipher_set_key(channel->internal.send_key, key, tmp_len * 8, TRUE);
+  silc_cipher_set_key(channel->internal.receive_key, key, tmp_len * 8, FALSE);
 
   /* Get channel HMAC */
   hmac = (channel->internal.hmac ?