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mcast: define and use MRT[6]_MAX in ip[6]_mroute_opt()

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This will ease further addition of new MRT[6]_* values and avoid to update
in6.h each time.
Note that we reduce the maximum value from 210 to 209, but 210 does not match
any known value in ip[6]_mroute_setsockopt().

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicolas Dichtel 2013-01-21 06:00:25 +00:00 committed by David S. Miller
parent 202dc3fc59
commit bbb923a4c2
5 changed files with 8 additions and 13 deletions
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2
include/linux/mroute.h
View file

@ -9,7 +9,7 @@
#ifdef CONFIG_IP_MROUTE
static inline int ip_mroute_opt(int opt)
{
return (opt >= MRT_BASE) && (opt <= MRT_BASE + 10);
return (opt >= MRT_BASE) && (opt <= MRT_MAX);
}
#else
static inline int ip_mroute_opt(int opt)

2
include/linux/mroute6.h
View file

@ -10,7 +10,7 @@
#ifdef CONFIG_IPV6_MROUTE
static inline int ip6_mroute_opt(int opt)
{
return (opt >= MRT6_BASE) && (opt <= MRT6_BASE + 10);
return (opt >= MRT6_BASE) && (opt <= MRT6_MAX);
}
#else
static inline int ip6_mroute_opt(int opt)

15
include/uapi/linux/in6.h
View file

@ -259,17 +259,10 @@ struct in6_flowlabel_req {
/*
* Multicast Routing:
* see include/linux/mroute6.h.
* see include/uapi/linux/mroute6.h.
*
* MRT6_INIT 200
* MRT6_DONE 201
* MRT6_ADD_MIF 202
* MRT6_DEL_MIF 203
* MRT6_ADD_MFC 204
* MRT6_DEL_MFC 205
* MRT6_VERSION 206
* MRT6_ASSERT 207
* MRT6_PIM 208
* (reserved) 209
* MRT6_BASE 200
* ...
* MRT6_MAX
*/
#endif /* _UAPI_LINUX_IN6_H */

1
include/uapi/linux/mroute.h
View file

@ -26,6 +26,7 @@
#define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */
#define MRT_PIM (MRT_BASE+8) /* enable PIM code */
#define MRT_TABLE (MRT_BASE+9) /* Specify mroute table ID */
#define MRT_MAX (MRT_BASE+9)
#define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */
#define SIOCGETSGCNT (SIOCPROTOPRIVATE+1)

1
include/uapi/linux/mroute6.h
View file

@ -26,6 +26,7 @@
#define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */
#define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */
#define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */
#define MRT6_MAX (MRT6_BASE+9)
#define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */
#define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1)