On Jan 7 2008 17:10, Vince Fuller wrote:
>
>This set of diffs modify the 2.6.20 kernel to enable use of the 240/4
>(aka "class-E") address space as consistent with the Internet Draft
>draft-fuller-240space-00.txt.
>
Below is a patch against davem/net-2.6.25. It might look very spartan,
but that is actually all that is needed on a sane system. No class E
macros or so needed.
Only the ipv4_is_badclass() might need renaming if you think it really
needs a name change. Or maybe a comment. Comments please :)
===
ancestor 7651a1f7ebe567f9088283f6354a5634b5dccb8e
commit 44762168d7cbefc4f8753a79d99a761cbd9875d9
Author: Jan Engelhardt <[EMAIL PROTECTED]>
Date: Fri Jan 18 02:10:44 2008 +0100
IPv4: enable use of 240/4 address space
This short patch modifies the IPv4 networking to enable use of the
240.0.0.0/4 (aka "class-E") address space as propsed in the internet
draft draft-fuller-240space-00.txt.
Signed-off-by: Jan Engelhardt <[EMAIL PROTECTED]>
diff --git a/include/linux/in.h b/include/linux/in.h
index 27d8a5a..b01bf75 100644
--- a/include/linux/in.h
+++ b/include/linux/in.h
@@ -216,9 +216,6 @@ struct sockaddr_in {
#define IN_MULTICAST(a) IN_CLASSD(a)
#define IN_MULTICAST_NET 0xF0000000
-#define IN_EXPERIMENTAL(a) ((((long int) (a)) & 0xf0000000) ==
0xf0000000)
-#define IN_BADCLASS(a) IN_EXPERIMENTAL((a))
-
/* Address to accept any incoming messages. */
#define INADDR_ANY ((unsigned long int) 0x00000000)
@@ -264,7 +261,7 @@ static inline bool ipv4_is_local_multicast(__be32 addr)
static inline bool ipv4_is_badclass(__be32 addr)
{
- return (addr & htonl(0xf0000000)) == htonl(0xf0000000);
+ return addr == 0xFFFFFFFF;
}
static inline bool ipv4_is_zeronet(__be32 addr)
--
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