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[NETLINK]: Ignore control messages directly in netlink_run_queue()

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Changes netlink_rcv_skb() to skip netlink controll messages and don't
pass them on to the message handler.

Signed-off-by: Thomas Graf <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Thomas Graf 2007-03-22 23:29:10 -07:00 • committed by David S. Miller
commit 45e7ae7f71
4 changed files with 4 additions and 14 deletions
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4
net/netlink/af_netlink.c
View file

@ -1479,6 +1479,10 @@ static int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *,
if (!(nlh->nlmsg_flags & NLM_F_REQUEST))
goto skip;
/* Skip control messages */
if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
goto skip;
if (cb(skb, nlh, &err) < 0) {
/* Not an error, but we have to interrupt processing
* here. Note: that in this case we do not pull

6
net/netlink/genetlink.c
View file

@ -304,9 +304,6 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
struct genlmsghdr *hdr = nlmsg_data(nlh);
int hdrlen, err = -EINVAL;
if (nlh->nlmsg_type < NLMSG_MIN_TYPE)
goto ignore;
family = genl_family_find_byid(nlh->nlmsg_type);
if (family == NULL) {
err = -ENOENT;
@ -364,9 +361,6 @@ static int genl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
*errp = err = ops->doit(skb, &info);
return err;
ignore:
return 0;
errout:
*errp = err;
return -1;