From 41a49cc3c02ace59d4dddae91ea211c330970ee3 Mon Sep 17 00:00:00 2001 From: Masahide NAKAMURA Date: Wed, 23 Aug 2006 22:48:31 -0700 Subject: [XFRM]: Add sorting interface for state and template. Under two transformation policies it is required to merge them. This is a platform to sort state for outbound and templates for inbound respectively. It will be used when Mobile IPv6 and IPsec are used at the same time. Signed-off-by: Masahide NAKAMURA Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- net/xfrm/xfrm_state.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) (limited to 'net/xfrm/xfrm_state.c') diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index a26ef6952c3..622e92a08d0 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -728,6 +728,44 @@ xfrm_find_acq(u8 mode, u32 reqid, u8 proto, } EXPORT_SYMBOL(xfrm_find_acq); +#ifdef CONFIG_XFRM_SUB_POLICY +int +xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n, + unsigned short family) +{ + int err = 0; + struct xfrm_state_afinfo *afinfo = xfrm_state_get_afinfo(family); + if (!afinfo) + return -EAFNOSUPPORT; + + spin_lock_bh(&xfrm_state_lock); + if (afinfo->tmpl_sort) + err = afinfo->tmpl_sort(dst, src, n); + spin_unlock_bh(&xfrm_state_lock); + xfrm_state_put_afinfo(afinfo); + return err; +} +EXPORT_SYMBOL(xfrm_tmpl_sort); + +int +xfrm_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n, + unsigned short family) +{ + int err = 0; + struct xfrm_state_afinfo *afinfo = xfrm_state_get_afinfo(family); + if (!afinfo) + return -EAFNOSUPPORT; + + spin_lock_bh(&xfrm_state_lock); + if (afinfo->state_sort) + err = afinfo->state_sort(dst, src, n); + spin_unlock_bh(&xfrm_state_lock); + xfrm_state_put_afinfo(afinfo); + return err; +} +EXPORT_SYMBOL(xfrm_state_sort); +#endif + /* Silly enough, but I'm lazy to build resolution list */ static struct xfrm_state *__xfrm_find_acq_byseq(u32 seq) -- cgit v1.2.3