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| author | Pavel Emelyanov <xemul@parallels.com> | 2011-12-15 02:46:31 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-16 13:48:29 -0500 |
| commit | cbf391958afb9b82c72324a15891eb3102200085 (patch) | |
| tree | 33230c7964b3b2119a84696afe4299a8a385f937 | |
| parent | 2aac7a2cb0d9d8c65fc7dde3e19e46b3e878d23d (diff) | |
| download | linux-cbf391958afb9b82c72324a15891eb3102200085.tar.bz2 | |
unix_diag: Receive queue lenght NLA
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/unix_diag.h | 2 | ||||
| -rw-r--r-- | net/unix/diag.c | 13 |
2 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/unix_diag.h b/include/linux/unix_diag.h index 03ffb7de15b6..3f7afb007d70 100644 --- a/include/linux/unix_diag.h +++ b/include/linux/unix_diag.h @@ -15,6 +15,7 @@ struct unix_diag_req { #define UDIAG_SHOW_VFS 0x00000002 /* show VFS inode info */ #define UDIAG_SHOW_PEER 0x00000004 /* show peer socket info */ #define UDIAG_SHOW_ICONS 0x00000008 /* show pending connections */ +#define UDIAG_SHOW_RQLEN 0x00000010 /* show skb receive queue len */ struct unix_diag_msg { __u8 udiag_family; @@ -31,6 +32,7 @@ enum { UNIX_DIAG_VFS, UNIX_DIAG_PEER, UNIX_DIAG_ICONS, + UNIX_DIAG_RQLEN, UNIX_DIAG_MAX, }; diff --git a/net/unix/diag.c b/net/unix/diag.c index 24c7a65d9cb1..a5c4aab0380d 100644 --- a/net/unix/diag.c +++ b/net/unix/diag.c @@ -98,6 +98,15 @@ rtattr_failure: return -EMSGSIZE; } +static int sk_diag_show_rqlen(struct sock *sk, struct sk_buff *nlskb) +{ + RTA_PUT_U32(nlskb, UNIX_DIAG_RQLEN, sk->sk_receive_queue.qlen); + return 0; + +rtattr_failure: + return -EMSGSIZE; +} + static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_req *req, u32 pid, u32 seq, u32 flags, int sk_ino) { @@ -132,6 +141,10 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct unix_diag_r sk_diag_dump_icons(sk, skb)) goto nlmsg_failure; + if ((req->udiag_show & UDIAG_SHOW_RQLEN) && + sk_diag_show_rqlen(sk, skb)) + goto nlmsg_failure; + nlh->nlmsg_len = skb_tail_pointer(skb) - b; return skb->len; |