From: Wang Chen <[EMAIL PROTECTED]>
Thanks dave, herbert, gerrit, andi and other people for your
discussion about this problem.
UdpInDatagrams can be confusing because it counts packets that
might be dropped later.
Move UdpInDatagrams into recvmsg() as allowed by the RFC.
Signed-off-by: Wang Chen <[EMAIL PROTECTED]>
---
Documentation/networking/udplite.txt | 2 +-
net/ipv4/udp.c | 7 +++----
net/ipv6/udp.c | 4 +++-
3 files changed, 7 insertions(+), 6 deletions(-)
diff -Nurp linux-2.6.24.rc3.org/Documentation/networking/udplite.txt
linux-2.6.24.rc3/Documentation/networking/udplite.txt
--- linux-2.6.24.rc3.org/Documentation/networking/udplite.txt 2007-11-19
12:37:40.000000000 +0800
+++ linux-2.6.24.rc3/Documentation/networking/udplite.txt 2007-11-30
09:43:08.000000000 +0800
@@ -236,7 +236,7 @@
This displays UDP-Lite statistics variables, whose meaning is as follows.
- InDatagrams: Total number of received datagrams.
+ InDatagrams: The total number of datagrams delivered to users.
NoPorts: Number of packets received to an unknown port.
These cases are counted separately (not as InErrors).
diff -Nurp linux-2.6.24.rc3.org/net/ipv4/udp.c linux-2.6.24.rc3/net/ipv4/udp.c
--- linux-2.6.24.rc3.org/net/ipv4/udp.c 2007-11-19 12:38:14.000000000 +0800
+++ linux-2.6.24.rc3/net/ipv4/udp.c 2007-11-30 09:48:21.000000000 +0800
@@ -873,6 +873,8 @@ try_again:
if (err)
goto out_free;
+ UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS, is_udplite);
+
sock_recv_timestamp(msg, sk, skb);
/* Copy the address. */
@@ -966,10 +968,8 @@ int udp_queue_rcv_skb(struct sock * sk,
int ret;
ret = (*up->encap_rcv)(sk, skb);
- if (ret <= 0) {
- UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS,
up->pcflag);
+ if (ret <= 0)
return -ret;
- }
}
/* FALLTHROUGH -- it's a UDP Packet */
@@ -1023,7 +1023,6 @@ int udp_queue_rcv_skb(struct sock * sk,
goto drop;
}
- UDP_INC_STATS_BH(UDP_MIB_INDATAGRAMS, up->pcflag);
return 0;
drop:
diff -Nurp linux-2.6.24.rc3.org/net/ipv6/udp.c linux-2.6.24.rc3/net/ipv6/udp.c
--- linux-2.6.24.rc3.org/net/ipv6/udp.c 2007-11-19 12:38:14.000000000 +0800
+++ linux-2.6.24.rc3/net/ipv6/udp.c 2007-11-30 09:52:52.000000000 +0800
@@ -164,6 +164,8 @@ try_again:
if (err)
goto out_free;
+ UDP6_INC_STATS_BH(UDP_MIB_INDATAGRAMS, is_udplite);
+
sock_recv_timestamp(msg, sk, skb);
/* Copy the address. */
@@ -292,7 +294,7 @@ int udpv6_queue_rcv_skb(struct sock * sk
UDP6_INC_STATS_BH(UDP_MIB_RCVBUFERRORS, up->pcflag);
goto drop;
}
- UDP6_INC_STATS_BH(UDP_MIB_INDATAGRAMS, up->pcflag);
+
return 0;
drop:
UDP6_INC_STATS_BH(UDP_MIB_INERRORS, up->pcflag);
-
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
