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| author | Pavel Emelyanov <xemul@parallels.com> | 2012-08-13 05:55:46 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-14 16:56:33 -0700 |
| commit | 8a360be0c5f8fe2c46f0a524886fa56596534193 (patch) | |
| tree | 6f97f7711805ef93abe605244440268dcfa4d1f5 /net/packet | |
| parent | 96ec6327144e1ac9e6676e34fae8b49c2102fa5a (diff) | |
| download | lwn-8a360be0c5f8fe2c46f0a524886fa56596534193.tar.gz lwn-8a360be0c5f8fe2c46f0a524886fa56596534193.zip | |
packet: Report more packet sk info via diag module
This reports in one rtattr message all the other scalar values, that can be
set on a packet socket with setsockopt.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/diag.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/net/packet/diag.c b/net/packet/diag.c index ff2f7f5bfb8f..d5bd0372d004 100644 --- a/net/packet/diag.c +++ b/net/packet/diag.c @@ -7,6 +7,31 @@ #include "internal.h" +static int pdiag_put_info(const struct packet_sock *po, struct sk_buff *nlskb) +{ + struct packet_diag_info pinfo; + + pinfo.pdi_index = po->ifindex; + pinfo.pdi_version = po->tp_version; + pinfo.pdi_reserve = po->tp_reserve; + pinfo.pdi_copy_thresh = po->copy_thresh; + pinfo.pdi_tstamp = po->tp_tstamp; + + pinfo.pdi_flags = 0; + if (po->running) + pinfo.pdi_flags |= PDI_RUNNING; + if (po->auxdata) + pinfo.pdi_flags |= PDI_AUXDATA; + if (po->origdev) + pinfo.pdi_flags |= PDI_ORIGDEV; + if (po->has_vnet_hdr) + pinfo.pdi_flags |= PDI_VNETHDR; + if (po->tp_loss) + pinfo.pdi_flags |= PDI_LOSS; + + return nla_put(nlskb, PACKET_DIAG_INFO, sizeof(pinfo), &pinfo); +} + static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct packet_diag_req *req, u32 pid, u32 seq, u32 flags, int sk_ino) { @@ -25,7 +50,15 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb, struct packet_diag rp->pdiag_ino = sk_ino; sock_diag_save_cookie(sk, rp->pdiag_cookie); + if ((req->pdiag_show & PACKET_SHOW_INFO) && + pdiag_put_info(po, skb)) + goto out_nlmsg_trim; + return nlmsg_end(skb, nlh); + +out_nlmsg_trim: + nlmsg_cancel(skb, nlh); + return -EMSGSIZE; } static int packet_diag_dump(struct sk_buff *skb, struct netlink_callback *cb) |