netdev - [PATCH iproute2 net-next] ip: mroute: Print offload indication

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Date:   Sun,  8 Oct 2017 17:43:04 +0300
From:   Yotam Gigi <yotamg@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     stephen@...workplumber.org, davem@...emloft.net,
        mlxsw@...lanox.com, Yotam Gigi <yotamg@...lanox.com>
Subject: [PATCH iproute2 net-next] ip: mroute: Print offload indication

Since kernel net-next commit c7c0bbeae950 ("net: ipmr: Add MFC offload
indication") the kernel indicates on an MFC entry whether it was offloaded
using the RTNH_F_OFFLOAD flag. Update the "ip mroute show" command to
indicate when a route is offloaded, similarly to the "ip route show"
command.

Example output:
$ ip mroute
(0.0.0.0, 239.255.0.1)      Iif: sw1p7  Oifs: t_br0 State: resolved offload
(192.168.1.1, 239.255.0.1)  Iif: sw1p7  Oifs: sw1p4 State: resolved offload

Signed-off-by: Yotam Gigi <yotamg@...lanox.com>
---
 ip/ipmroute.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ip/ipmroute.c b/ip/ipmroute.c
index b51c23c..453a6cf 100644
--- a/ip/ipmroute.c
+++ b/ip/ipmroute.c
@@ -161,6 +161,8 @@ int print_mroute(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
 	}
 	fprintf(fp, " State: %s",
 		r->rtm_flags & RTNH_F_UNRESOLVED ? "unresolved" : "resolved");
+	if (r->rtm_flags & RTNH_F_OFFLOAD)
+		fprintf(fp, " offload");
 	if (show_stats && tb[RTA_MFC_STATS]) {
 		struct rta_mfc_stats *mfcs = RTA_DATA(tb[RTA_MFC_STATS]);
 
-- 
2.8.4