linux-kernel - [PATCH 06/10] drbd: Improve the "unexpected packet" error messages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1318501936-11689-7-git-send-email-philipp.reisner@linbit.com>
Date:	Thu, 13 Oct 2011 12:32:12 +0200
From:	Philipp Reisner <philipp.reisner@...bit.com>
To:	linux-kernel@...r.kernel.org, Jens Axboe <axboe@...nel.dk>
Cc:	drbd-dev@...ts.linbit.com
Subject: [PATCH 06/10] drbd: Improve the "unexpected packet" error messages

From: Andreas Gruenbacher <agruen@...bit.com>

Signed-off-by: Philipp Reisner <philipp.reisner@...bit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@...bit.com>
---
 drivers/block/drbd/drbd_receiver.c |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index d55a3cb..7218750 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -3200,8 +3200,8 @@ static int ignore_remaining_packet(struct drbd_tconn *tconn, struct packet_info
  */
 static int config_unknown_volume(struct drbd_tconn *tconn, struct packet_info *pi)
 {
-	conn_warn(tconn, "Volume %u unknown; ignoring %s packet\n",
-		  pi->vnr, cmdname(pi->cmd));
+	conn_warn(tconn, "%s packet received for volume %u, which is not configured locally\n",
+		  cmdname(pi->cmd), pi->vnr);
 	return ignore_remaining_packet(tconn, pi);
 }
 
@@ -4256,13 +4256,15 @@ static void drbdd(struct drbd_tconn *tconn)
 
 		cmd = &drbd_cmd_handler[pi.cmd];
 		if (unlikely(pi.cmd >= ARRAY_SIZE(drbd_cmd_handler) || !cmd->fn)) {
-			conn_err(tconn, "unknown packet type %d, l: %d!\n", pi.cmd, pi.size);
+			conn_err(tconn, "Unexpected data packet %s (0x%04x)",
+				 cmdname(pi.cmd), pi.cmd);
 			goto err_out;
 		}
 
 		shs = cmd->pkt_size;
 		if (pi.size > shs && !cmd->expect_payload) {
-			conn_err(tconn, "No payload expected %s l:%d\n", cmdname(pi.cmd), pi.size);
+			conn_err(tconn, "No payload expected %s l:%d\n",
+				 cmdname(pi.cmd), pi.size);
 			goto err_out;
 		}
 
@@ -4474,7 +4476,7 @@ static int drbd_do_features(struct drbd_tconn *tconn)
 
 	if (pi.cmd != P_CONNECTION_FEATURES) {
 		conn_err(tconn, "expected ConnectionFeatures packet, received: %s (0x%04x)\n",
-		     cmdname(pi.cmd), pi.cmd);
+			 cmdname(pi.cmd), pi.cmd);
 		return -1;
 	}
 
@@ -4583,7 +4585,7 @@ static int drbd_do_auth(struct drbd_tconn *tconn)
 
 	if (pi.cmd != P_AUTH_CHALLENGE) {
 		conn_err(tconn, "expected AuthChallenge packet, received: %s (0x%04x)\n",
-		    cmdname(pi.cmd), pi.cmd);
+			 cmdname(pi.cmd), pi.cmd);
 		rv = 0;
 		goto fail;
 	}
@@ -4642,7 +4644,7 @@ static int drbd_do_auth(struct drbd_tconn *tconn)
 
 	if (pi.cmd != P_AUTH_RESPONSE) {
 		conn_err(tconn, "expected AuthResponse packet, received: %s (0x%04x)\n",
-			cmdname(pi.cmd), pi.cmd);
+			 cmdname(pi.cmd), pi.cmd);
 		rv = 0;
 		goto fail;
 	}
@@ -5192,8 +5194,8 @@ int drbd_asender(struct drbd_thread *thi)
 				goto reconnect;
 			cmd = &asender_tbl[pi.cmd];
 			if (pi.cmd >= ARRAY_SIZE(asender_tbl) || !cmd->fn) {
-				conn_err(tconn, "unknown command %d on meta (l: %d)\n",
-					pi.cmd, pi.size);
+				conn_err(tconn, "Unexpected meta packet %s (0x%04x)\n",
+					 cmdname(pi.cmd), pi.cmd);
 				goto disconnect;
 			}
 			expect = header_size + cmd->pkt_size;
-- 
1.7.4.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/