Wang Chen a écrit :
Add raw drops counter for IPv4 in /proc/net/raw .
Signed-off-by: Wang Chen <[EMAIL PROTECTED]>
---
include/net/sock.h | 2 ++
net/core/sock.c | 1 +
net/ipv4/raw.c | 16 +++++++++-------
3 files changed, 12 insertions(+), 7 deletions(-)
diff -Nurp linux-2.6.24-rc2.org/include/net/sock.h
linux-2.6.24-rc2/include/net/sock.h
--- linux-2.6.24-rc2.org/include/net/sock.h 2007-11-09 16:37:08.000000000
+0800
+++ linux-2.6.24-rc2/include/net/sock.h 2007-11-13 15:19:20.000000000 +0800
@@ -156,6 +156,7 @@ struct sock_common {
* @sk_prot_creator: sk_prot of original sock creator (see
ipv6_setsockopt, IPV6_ADDRFORM for instance)
* @sk_err: last error
* @sk_err_soft: errors that don't cause failure but are the cause of a
persistent failure not just 'timed out'
+ * @sk_drops: raw drops counter
* @sk_ack_backlog: current listen backlog
* @sk_max_ack_backlog: listen backlog set in listen()
* @sk_priority: %SO_PRIORITY setting
@@ -239,6 +240,7 @@ struct sock {
rwlock_t sk_callback_lock;
int sk_err,
sk_err_soft;
+ atomic_t sk_drops;
This doesnt need an atomic_t , just an 'unsigned int' is OK, since
sock_queue_rcv_skb() is called on a locked socket.
Also, I suggest doing the sk_drops increment in sock_queue_rcv_skb() so
that it can be used for other sockets as well ?
I like having this counter per socket, but only if an application can
retrieve its value with a getsockopt() call, dont you think ?
getsockopt(sock, SOL_SOCKET, SO_DROPSCNT, &val, &vallen);
-
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