From 3ce58d84358c7b477811b5100152fad848f936fc Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 5 Oct 2015 08:51:25 -0700 Subject: net: Refactor path selection in __ip_route_output_key_hash VRF device needs the same path selection following lookup to set source address. Rather than duplicating code, move existing code into a function that is exported to modules. Code move only; no functional change. Signed-off-by: David Ahern Signed-off-by: David S. Miller --- net/ipv4/fib_semantics.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'net/ipv4/fib_semantics.c') diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 7bd698c3bd3a..af77298c8b4f 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -1557,3 +1557,24 @@ void fib_select_multipath(struct fib_result *res, int hash) res->nh_sel = 0; } #endif + +void fib_select_path(struct net *net, struct fib_result *res, + struct flowi4 *fl4, int mp_hash) +{ +#ifdef CONFIG_IP_ROUTE_MULTIPATH + if (res->fi->fib_nhs > 1 && fl4->flowi4_oif == 0) { + if (mp_hash < 0) + mp_hash = fib_multipath_hash(fl4->saddr, fl4->daddr); + fib_select_multipath(res, mp_hash); + } + else +#endif + if (!res->prefixlen && + res->table->tb_num_default > 1 && + res->type == RTN_UNICAST && !fl4->flowi4_oif) + fib_select_default(fl4, res); + + if (!fl4->saddr) + fl4->saddr = FIB_RES_PREFSRC(net, *res); +} +EXPORT_SYMBOL_GPL(fib_select_path); -- cgit v1.2.3