diff options
| author | David Ahern <dsahern@gmail.com> | 2018-05-21 09:08:14 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-05-22 10:51:09 +0200 |
| commit | 901731b882d77dc53897aec45015ced42d56fe4c (patch) | |
| tree | 07c27d09002feed8c9429759dc8a1bd844c09e27 /net/ipv6/addrconf_core.c | |
| parent | 50d889b1789458d1f7d7f40ff4f628b670047773 (diff) | |
| download | lwn-901731b882d77dc53897aec45015ced42d56fe4c.tar.gz lwn-901731b882d77dc53897aec45015ced42d56fe4c.zip | |
net/ipv6: Add helper to return path MTU based on fib result
Determine path MTU from a FIB lookup result. Logic is based on
ip6_dst_mtu_forward plus lookup of nexthop exception.
Add ip6_dst_mtu_forward to ipv6_stubs to handle access by core
bpf code.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/ipv6/addrconf_core.c')
| -rw-r--r-- | net/ipv6/addrconf_core.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c index 2fe754fd4f5e..5cd0029d930e 100644 --- a/net/ipv6/addrconf_core.c +++ b/net/ipv6/addrconf_core.c @@ -161,12 +161,20 @@ eafnosupport_fib6_multipath_select(const struct net *net, struct fib6_info *f6i, return f6i; } +static u32 +eafnosupport_ip6_mtu_from_fib6(struct fib6_info *f6i, struct in6_addr *daddr, + struct in6_addr *saddr) +{ + return 0; +} + const struct ipv6_stub *ipv6_stub __read_mostly = &(struct ipv6_stub) { .ipv6_dst_lookup = eafnosupport_ipv6_dst_lookup, .fib6_get_table = eafnosupport_fib6_get_table, .fib6_table_lookup = eafnosupport_fib6_table_lookup, .fib6_lookup = eafnosupport_fib6_lookup, .fib6_multipath_select = eafnosupport_fib6_multipath_select, + .ip6_mtu_from_fib6 = eafnosupport_ip6_mtu_from_fib6, }; EXPORT_SYMBOL_GPL(ipv6_stub); |