netdev - [PATCH iproute2-next 07/12] mroute: Add table id attribute for kernel side filtering

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Date:   Wed, 19 Dec 2018 19:54:22 -0800
From:   David Ahern <dsahern@...nel.org>
To:     netdev@...r.kernel.org
Cc:     stephen@...workplumber.org, David Ahern <dsahern@...il.com>
Subject: [PATCH iproute2-next 07/12] mroute: Add table id attribute for kernel side filtering

From: David Ahern <dsahern@...il.com>

Similar to 'ip route' add the table id to the dump request for
kernel side filtering if it is supported.

Signed-off-by: David Ahern <dsahern@...il.com>
---
 ip/ipmroute.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/ip/ipmroute.c b/ip/ipmroute.c
index b8f0bc49b92e..b29c78e4cc86 100644
--- a/ip/ipmroute.c
+++ b/ip/ipmroute.c
@@ -220,6 +220,19 @@ void ipmroute_reset_filter(int ifindex)
 	filter.iif = ifindex;
 }
 
+static int iproute_dump_filter(struct nlmsghdr *nlh, int reqlen)
+{
+	int err;
+
+	if (filter.tb) {
+		err = addattr32(nlh, reqlen, RTA_TABLE, filter.tb);
+		if (err)
+			return err;
+	}
+
+	return 0;
+}
+
 static int mroute_list(int argc, char **argv)
 {
 	char *id = NULL;
@@ -285,7 +298,7 @@ static int mroute_list(int argc, char **argv)
 		filter.iif = idx;
 	}
 
-	if (rtnl_routedump_req(&rth, filter.af, NULL) < 0) {
+	if (rtnl_routedump_req(&rth, filter.af, iproute_dump_filter) < 0) {
 		perror("Cannot send dump request");
 		return 1;
 	}
-- 
2.11.0