diff options
| -rw-r--r-- | include/net/nexthop.h | 4 | ||||
| -rw-r--r-- | net/ipv4/nexthop.c | 31 |
2 files changed, 35 insertions, 0 deletions
diff --git a/include/net/nexthop.h b/include/net/nexthop.h index e019ed9b3dc3..25f1f9a8419b 100644 --- a/include/net/nexthop.h +++ b/include/net/nexthop.h @@ -305,4 +305,8 @@ static inline void nexthop_path_fib6_result(struct fib6_result *res, int hash) res->nh = &nhi->fib6_nh; } } + +int nexthop_for_each_fib6_nh(struct nexthop *nh, + int (*cb)(struct fib6_nh *nh, void *arg), + void *arg); #endif diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 5e48762b6b5f..49e8adce5b96 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -517,6 +517,37 @@ struct nexthop *nexthop_select_path(struct nexthop *nh, int hash) } EXPORT_SYMBOL_GPL(nexthop_select_path); +int nexthop_for_each_fib6_nh(struct nexthop *nh, + int (*cb)(struct fib6_nh *nh, void *arg), + void *arg) +{ + struct nh_info *nhi; + int err; + + if (nh->is_group) { + struct nh_group *nhg; + int i; + + nhg = rcu_dereference_rtnl(nh->nh_grp); + for (i = 0; i < nhg->num_nh; i++) { + struct nh_grp_entry *nhge = &nhg->nh_entries[i]; + + nhi = rcu_dereference_rtnl(nhge->nh->nh_info); + err = cb(&nhi->fib6_nh, arg); + if (err) + return err; + } + } else { + nhi = rcu_dereference_rtnl(nh->nh_info); + err = cb(&nhi->fib6_nh, arg); + if (err) + return err; + } + + return 0; +} +EXPORT_SYMBOL_GPL(nexthop_for_each_fib6_nh); + int fib6_check_nexthop(struct nexthop *nh, struct fib6_config *cfg, struct netlink_ext_ack *extack) { |