diff options
| author | Thomas Graf <tgraf@suug.ch> | 2007-03-22 23:28:46 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:27:29 -0700 |
| commit | d35b685640aeb39eb4f5e98c75e8e001e406f9a3 (patch) | |
| tree | c3ec38a2fb54a3783dd9c764bf58be68557f9396 /net | |
| parent | 33a0543cd9e090d2c6759e0ed85c3049c6efcc06 (diff) | |
| download | blackbird-op-linux-d35b685640aeb39eb4f5e98c75e8e001e406f9a3.tar.gz blackbird-op-linux-d35b685640aeb39eb4f5e98c75e8e001e406f9a3.zip | |
[NETLINK]: Ignore !NLM_F_REQUEST messages directly in netlink_run_queue()
netlink_rcv_skb() is changed to skip messages which don't have the
NLM_F_REQUEST bit to avoid every netlink family having to perform this
check on their own.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/rtnetlink.c | 4 | ||||
| -rw-r--r-- | net/netlink/af_netlink.c | 10 | ||||
| -rw-r--r-- | net/netlink/genetlink.c | 3 | ||||
| -rw-r--r-- | net/xfrm/xfrm_user.c | 3 |
4 files changed, 8 insertions, 12 deletions
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 4398cb81bcab..cc09283fd76a 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -862,10 +862,6 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp) int type; int err; - /* Only requests are handled by kernel now */ - if (!(nlh->nlmsg_flags&NLM_F_REQUEST)) - return 0; - type = nlh->nlmsg_type; /* A control message: ignore them */ diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 8488c15f2643..7b455980e9bf 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1470,10 +1470,15 @@ static int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *, while (skb->len >= nlmsg_total_size(0)) { nlh = nlmsg_hdr(skb); + err = 0; if (nlh->nlmsg_len < NLMSG_HDRLEN || skb->len < nlh->nlmsg_len) return 0; + /* Only requests are handled by the kernel */ + if (!(nlh->nlmsg_flags & NLM_F_REQUEST)) + 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 @@ -1481,9 +1486,10 @@ static int netlink_rcv_skb(struct sk_buff *skb, int (*cb)(struct sk_buff *, */ if (err == 0) return -1; + } +skip: + if (nlh->nlmsg_flags & NLM_F_ACK || err) netlink_ack(skb, nlh, err); - } else if (nlh->nlmsg_flags & NLM_F_ACK) - netlink_ack(skb, nlh, 0); netlink_queue_skip(nlh, skb); } diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c index c2996794eb25..039516f6cd80 100644 --- a/net/netlink/genetlink.c +++ b/net/netlink/genetlink.c @@ -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_flags & NLM_F_REQUEST)) - goto ignore; - if (nlh->nlmsg_type < NLMSG_MIN_TYPE) goto ignore; diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index 6b7f6dc144c7..913c8b727d8f 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1858,9 +1858,6 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *err struct xfrm_link *link; int type, min_len; - if (!(nlh->nlmsg_flags & NLM_F_REQUEST)) - return 0; - type = nlh->nlmsg_type; /* A control message: ignore them */ |
