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| author | Mark Stapp <mjs@voltanet.io> | 2020-01-16 22:24:16 +0100 |
|---|---|---|
| committer | Mark Stapp <mjs@voltanet.io> | 2020-03-27 14:37:02 +0100 |
| commit | defd2ea4a188072a79b050c00b96ef22344210a9 (patch) | |
| tree | 1e7f513621d865ee2d1c7cb45b1f196a92acfee7 /lib/nexthop.h | |
| parent | zebra: clean up a debug and an api in netlink code (diff) | |
| download | frr-defd2ea4a188072a79b050c00b96ef22344210a9.tar.xz frr-defd2ea4a188072a79b050c00b96ef22344210a9.zip | |
lib: add backup-nexthop value to nexthop
Add a field supporting a backup nexthop.
Signed-off-by: Mark Stapp <mjs@voltanet.io>
Diffstat (limited to 'lib/nexthop.h')
| -rw-r--r-- | lib/nexthop.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/nexthop.h b/lib/nexthop.h index 8d7580f6b..2e7b6e78f 100644 --- a/lib/nexthop.h +++ b/lib/nexthop.h @@ -86,6 +86,8 @@ struct nexthop { * active one */ #define NEXTHOP_FLAG_RNH_FILTERED (1 << 5) /* rmap filtered, used by rnh */ +#define NEXTHOP_FLAG_HAS_BACKUP (1 << 6) /* Backup nexthop index is set */ + #define NEXTHOP_IS_ACTIVE(flags) \ (CHECK_FLAG(flags, NEXTHOP_FLAG_ACTIVE) \ && !CHECK_FLAG(flags, NEXTHOP_FLAG_DUPLICATE)) @@ -116,8 +118,15 @@ struct nexthop { /* Weight of the nexthop ( for unequal cost ECMP ) */ uint8_t weight; + + /* Index of a corresponding backup nexthop in a backup list; + * only meaningful if the HAS_BACKUP flag is set. + */ + uint8_t backup_idx; }; +/* Backup index value is limited */ +#define NEXTHOP_BACKUP_IDX_MAX 255 /* Utility to append one nexthop to another. */ #define NEXTHOP_APPEND(to, new) \ |