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| author | David Ahern <dsahern@gmail.com> | 2019-04-17 00:35:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-18 09:08:51 +0300 |
| commit | b1d40991506aa9f1de310a2e74ef8e3bec6ba215 (patch) | |
| tree | 81c208a425d0a0464bb713b78828131dd98f3eb4 /include | |
| parent | 6b0a7f84ea1fe248df96ccc4dd86e817e32ef65b (diff) | |
| download | linux-b1d40991506aa9f1de310a2e74ef8e3bec6ba215.tar.xz | |
ipv6: Rename fib6_multipath_select and pass fib6_result
Add 'struct fib6_result' to hold the fib entry and fib6_nh from a fib
lookup as separate entries, similar to what IPv4 now has with fib_result.
Rename fib6_multipath_select to fib6_select_path, pass fib6_result to
it, and set f6i and nh in the result once a path selection is done.
Call fib6_select_path unconditionally for path selection which means
moving the sibling and oif check to fib6_select_path. To handle the two
different call paths (2 only call multipath_select if flowi6_oif == 0 and
the other always calls it), add a new have_oif_match that controls the
sibling walk if relevant.
Update callers of fib6_multipath_select accordingly and have them use the
fib6_info and fib6_nh from the result.
This is needed for multipath nexthop objects where a single f6i can
point to multiple fib6_nh (similar to IPv4).
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/ip6_fib.h | 13 | ||||
| -rw-r--r-- | include/net/ipv6_stubs.h | 9 |
2 files changed, 12 insertions, 10 deletions
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 2e9235adfa0d..c4d818041663 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -190,6 +190,11 @@ struct rt6_info { unsigned short rt6i_nfheader_len; }; +struct fib6_result { + struct fib6_nh *nh; + struct fib6_info *f6i; +}; + #define for_each_fib6_node_rt_rcu(fn) \ for (rt = rcu_dereference((fn)->leaf); rt; \ rt = rcu_dereference(rt->fib6_next)) @@ -391,11 +396,9 @@ struct fib6_info *fib6_lookup(struct net *net, int oif, struct flowi6 *fl6, struct fib6_info *fib6_table_lookup(struct net *net, struct fib6_table *table, int oif, struct flowi6 *fl6, int strict); -struct fib6_info *fib6_multipath_select(const struct net *net, - struct fib6_info *match, - struct flowi6 *fl6, int oif, - const struct sk_buff *skb, int strict); - +void fib6_select_path(const struct net *net, struct fib6_result *res, + struct flowi6 *fl6, int oif, bool have_oif_match, + const struct sk_buff *skb, int strict); struct fib6_node *fib6_node_lookup(struct fib6_node *root, const struct in6_addr *daddr, const struct in6_addr *saddr); diff --git a/include/net/ipv6_stubs.h b/include/net/ipv6_stubs.h index 453b55bf6723..5df36d6a2613 100644 --- a/include/net/ipv6_stubs.h +++ b/include/net/ipv6_stubs.h @@ -14,6 +14,7 @@ struct fib6_info; struct fib6_nh; struct fib6_config; +struct fib6_result; /* This is ugly, ideally these symbols should be built * into the core kernel. @@ -34,11 +35,9 @@ struct ipv6_stub { struct fib6_table *table, int oif, struct flowi6 *fl6, int flags); - struct fib6_info *(*fib6_multipath_select)(const struct net *net, - struct fib6_info *f6i, - struct flowi6 *fl6, int oif, - const struct sk_buff *skb, - int strict); + void (*fib6_select_path)(const struct net *net, struct fib6_result *res, + struct flowi6 *fl6, int oif, bool oif_match, + const struct sk_buff *skb, int strict); u32 (*ip6_mtu_from_fib6)(struct fib6_info *f6i, struct in6_addr *daddr, struct in6_addr *saddr); |