Messages in this thread Patch in this message | | | Date | Fri, 18 Jan 2008 02:13:52 +0100 (CET) | From | Jan Engelhardt <> | Subject | [PATCH] IPv4: Enable use of 240/4 address space |
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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 <jengelh@computergmbh.de> 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 <jengelh@computergmbh.de>
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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