netdev - [IPROUTE PATCH] libnetlink: Use ifinfomsg instead of rtgenmsg in rtnl_wilddump_req

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Date:	Thu, 25 Apr 2013 15:07:10 -0700
From:	Alexander Duyck <alexander.h.duyck@...el.com>
To:	shemminger@...tta.com
Cc:	netdev@...r.kernel.org, Or Gerlitz <ogerlitz@...lanox.com>,
	jeffrey.t.kirsher@...el.com
Subject: [IPROUTE PATCH] libnetlink: Use ifinfomsg instead of rtgenmsg in
 rtnl_wilddump_req_filter

This change corrects a kernel incompatibility that was resulting in the
ext_filter_mask not being correctly discovered by the kernel as it is buried
somewhere in the ifinfomsg.

Reported-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
---
 lib/libnetlink.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/libnetlink.c b/lib/libnetlink.c
index 04201cd..b17e1aa 100644
--- a/lib/libnetlink.c
+++ b/lib/libnetlink.c
@@ -99,7 +99,7 @@ int rtnl_wilddump_req_filter(struct rtnl_handle *rth, int family, int type,
 {
 	struct {
 		struct nlmsghdr nlh;
-		struct rtgenmsg g;
+		struct ifinfomsg ifm;
 		/* attribute has to be NLMSG aligned */
 		struct rtattr ext_req __attribute__ ((aligned(NLMSG_ALIGNTO)));
 		__u32 ext_filter_mask;
@@ -111,7 +111,7 @@ int rtnl_wilddump_req_filter(struct rtnl_handle *rth, int family, int type,
 	req.nlh.nlmsg_flags = NLM_F_DUMP|NLM_F_REQUEST;
 	req.nlh.nlmsg_pid = 0;
 	req.nlh.nlmsg_seq = rth->dump = ++rth->seq;
-	req.g.rtgen_family = family;
+	req.ifm.ifi_family = family;
 
 	req.ext_req.rta_type = IFLA_EXT_MASK;
 	req.ext_req.rta_len = RTA_LENGTH(sizeof(__u32));

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