* [PATCH 3/8] net: introduce proto_ports_offset()
@ 2010-08-18 5:03 Changli Gao
2010-08-20 0:16 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Changli Gao @ 2010-08-18 5:03 UTC (permalink / raw)
To: David S. Miller
Cc: Patrick McHardy, Jamal Hadi Salim, netdev, netfilter-devel,
Changli Gao
Introduce proto_ports_offset() for getting the position of the ports or
SPI in the message of a protocol.
Signed-off-by: Changli Gao <xiaosuo@gmail.com>
---
include/linux/in.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/include/linux/in.h b/include/linux/in.h
index 41d88a4..beeb6de 100644
--- a/include/linux/in.h
+++ b/include/linux/in.h
@@ -250,6 +250,25 @@ struct sockaddr_in {
#ifdef __KERNEL__
+#include <linux/errno.h>
+
+static inline int proto_ports_offset(int proto)
+{
+ switch (proto) {
+ case IPPROTO_TCP:
+ case IPPROTO_UDP:
+ case IPPROTO_DCCP:
+ case IPPROTO_ESP: /* SPI */
+ case IPPROTO_SCTP:
+ case IPPROTO_UDPLITE:
+ return 0;
+ case IPPROTO_AH: /* SPI */
+ return 4;
+ default:
+ return -EINVAL;
+ }
+}
+
static inline bool ipv4_is_loopback(__be32 addr)
{
return (addr & htonl(0xff000000)) == htonl(0x7f000000);
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 3/8] net: introduce proto_ports_offset()
2010-08-18 5:03 [PATCH 3/8] net: introduce proto_ports_offset() Changli Gao
@ 2010-08-20 0:16 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2010-08-20 0:16 UTC (permalink / raw)
To: xiaosuo; +Cc: kaber, hadi, netdev, netfilter-devel
From: Changli Gao <xiaosuo@gmail.com>
Date: Wed, 18 Aug 2010 13:03:44 +0800
> Introduce proto_ports_offset() for getting the position of the ports or
> SPI in the message of a protocol.
>
> Signed-off-by: Changli Gao <xiaosuo@gmail.com>
Applied.
^ permalink raw reply [flat|nested] 2+ messages in thread
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