Differential D26162 Diff 76172 head/sys/net/route/route_var.h

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head/sys/net/route/route_var.h

Show First 20 Lines • Show All 162 Lines • ▼ Show 20 Lines	union {
struct sockaddr_in6 rt_dst6;		struct sockaddr_in6 rt_dst6;
struct sockaddr rt_dst;		struct sockaddr rt_dst;
char rt_dstb[28];		char rt_dstb[28];
};		};

int rte_flags; /* up/down?, host/net */		int rte_flags; /* up/down?, host/net */
u_long rt_weight; /* absolute weight */		u_long rt_weight; /* absolute weight */
u_long rt_expire; /* lifetime for route, e.g. redirect */		u_long rt_expire; /* lifetime for route, e.g. redirect */
#define rt_endzero rt_mtx
struct mtx rt_mtx; /* mutex for routing entry */
struct rtentry rt_chain; / pointer to next rtentry to delete */		struct rtentry rt_chain; / pointer to next rtentry to delete */
struct epoch_context rt_epoch_ctx; /* net epoch tracker */		struct epoch_context rt_epoch_ctx; /* net epoch tracker */
};		};

#define RT_LOCK_INIT(_rt) \
mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF \| MTX_DUPOK \| MTX_NEW)
#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx)
#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx)
#define RT_LOCK_DESTROY(_rt) mtx_destroy(&(_rt)->rt_mtx)
#define RT_LOCK_ASSERT(_rt) mtx_assert(&(_rt)->rt_mtx, MA_OWNED)
#define RT_UNLOCK_COND(_rt) do { \
if (mtx_owned(&(_rt)->rt_mtx)) \
mtx_unlock(&(_rt)->rt_mtx); \
} while (0)

/*		/*
* With the split between the routing entry and the nexthop,		* With the split between the routing entry and the nexthop,
* rt_flags has to be split between these 2 entries. As rtentry		* rt_flags has to be split between these 2 entries. As rtentry
* mostly contains prefix data and is thought to be generic enough		* mostly contains prefix data and is thought to be generic enough
* so one can transparently change the nexthop pointer w/o requiring		* so one can transparently change the nexthop pointer w/o requiring
* any other rtentry changes, most of rt_flags shifts to the particular nexthop.		* any other rtentry changes, most of rt_flags shifts to the particular nexthop.
* /		* /
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