From: Hangbin Liu <liuhangbin@gmail.com>
Date: Tue, 27 Sep 2022 10:21:07 +0000 (+0800)
Subject: tc/tc_monitor: print netlink extack message
X-Git-Tag: v6.1.0~33^2~9
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0cc5533b71dc3d3f07e04e78b36c24e01610837f;p=thirdparty%2Fiproute2.git

tc/tc_monitor: print netlink extack message

Upstream commit "sched: add extack for tfilter_notify" will make
tc event contain extack message, which could be used for logging
offloading failures. Let's print the extack message in tc monitor.
e.g.

  # tc monitor
  added chain dev enp3s0f1np1 parent ffff: chain 0
  added filter dev enp3s0f1np1 ingress protocol all pref 49152 flower chain 0 handle 0x1
    ct_state +trk+new
    not_in_hw
          action order 1: gact action drop
           random type none pass val 0
           index 1 ref 1 bind 1

  Warning: mlx5_core: matching on ct_state +new isn't supported.

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David Ahern <dsahern@kernel.org>
---

diff --git a/tc/tc_monitor.c b/tc/tc_monitor.c
index f8816cc53..c279a4a1a 100644
--- a/tc/tc_monitor.c
+++ b/tc/tc_monitor.c
@@ -42,6 +42,9 @@ static int accept_tcmsg(struct rtnl_ctrl_data *ctrl,
 	if (timestamp)
 		print_timestamp(fp);
 
+	if (n->nlmsg_type == NLMSG_DONE)
+		nl_dump_ext_ack_done(n, 0, 0);
+
 	if (n->nlmsg_type == RTM_NEWTFILTER ||
 	    n->nlmsg_type == RTM_DELTFILTER ||
 	    n->nlmsg_type == RTM_NEWCHAIN ||