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authorThomas Graf <tgraf@suug.ch>2012-07-05 14:19:57 +0200
committerMarc Kleine-Budde <mkl@pengutronix.de>2012-07-10 22:36:01 +0200
commit1da0faa3801e0dcb585b33266a2ac0842f26e58c (patch)
tree30d62927d4601adafc78574deecb7ed0eb3141e3
parentcan: gw: Use nla_policy to validate netlink attributes (diff)
downloadlinux-dev-1da0faa3801e0dcb585b33266a2ac0842f26e58c.tar.xz
linux-dev-1da0faa3801e0dcb585b33266a2ac0842f26e58c.zip
can: gw: Properly fill the netlink header when responding to RTM_GETROUTE
- set message type to RTM_NEWROUTE - relate to original request by inheriting the sequence and port number. - set NLM_F_MULTI because it's a dump and more messages will follow Signed-off-by: Thomas Graf <tgraf@suug.ch> Tested-by: Oliver Hartkopp <socketcan@hartkopp.net> Acked-by: Oliver Hartkopp <socketcan@hartkopp.net> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
-rw-r--r--net/can/gw.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/net/can/gw.c b/net/can/gw.c
index a1c639c730a3..20c36e10ce85 100644
--- a/net/can/gw.c
+++ b/net/can/gw.c
@@ -444,11 +444,14 @@ static int cgw_notifier(struct notifier_block *nb,
return NOTIFY_DONE;
}
-static int cgw_put_job(struct sk_buff *skb, struct cgw_job *gwj)
+static int cgw_put_job(struct sk_buff *skb, struct cgw_job *gwj, int type,
+ u32 pid, u32 seq, int flags)
{
struct cgw_frame_mod mb;
struct rtcanmsg *rtcan;
- struct nlmsghdr *nlh = nlmsg_put(skb, 0, 0, 0, sizeof(*rtcan), 0);
+ struct nlmsghdr *nlh;
+
+ nlh = nlmsg_put(skb, pid, seq, type, sizeof(*rtcan), flags);
if (!nlh)
return -EMSGSIZE;
@@ -546,7 +549,8 @@ static int cgw_dump_jobs(struct sk_buff *skb, struct netlink_callback *cb)
if (idx < s_idx)
goto cont;
- if (cgw_put_job(skb, gwj) < 0)
+ if (cgw_put_job(skb, gwj, RTM_NEWROUTE, NETLINK_CB(cb->skb).pid,
+ cb->nlh->nlmsg_seq, NLM_F_MULTI) < 0)
break;
cont:
idx++;