From d159ce7957eec306eacda672e5909e26675ca8ef Mon Sep 17 00:00:00 2001 From: Steffen Klassert Date: Tue, 12 Jun 2018 14:06:57 +0200 Subject: flow: Extend flow informations with xfrm interface id. Add a new flowi_xfrm structure with informations needed to do a xfrm lookup. At the moment it keeps the informations about the new xfrm interface id needed to lookup xfrm interfaces that are introduced with a followup patch. We need this new lookup key as other possible keys, like the ifindex is already part of the xfrm selector and used as a key to enforce the output device after the transformation in the policy/state lookup. Signed-off-by: Steffen Klassert Acked-by: Shannon Nelson Acked-by: Benedict Wong Tested-by: Benedict Wong Tested-by: Antony Antony Reviewed-by: Eyal Birger --- include/net/flow.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'include/net/flow.h') diff --git a/include/net/flow.h b/include/net/flow.h index 8ce21793094e..187c9bef672f 100644 --- a/include/net/flow.h +++ b/include/net/flow.h @@ -26,6 +26,10 @@ struct flowi_tunnel { __be64 tun_id; }; +struct flowi_xfrm { + __u32 if_id; +}; + struct flowi_common { int flowic_oif; int flowic_iif; @@ -39,6 +43,7 @@ struct flowi_common { #define FLOWI_FLAG_SKIP_NH_OIF 0x04 __u32 flowic_secid; struct flowi_tunnel flowic_tun_key; + struct flowi_xfrm xfrm; kuid_t flowic_uid; }; @@ -78,6 +83,7 @@ struct flowi4 { #define flowi4_secid __fl_common.flowic_secid #define flowi4_tun_key __fl_common.flowic_tun_key #define flowi4_uid __fl_common.flowic_uid +#define flowi4_xfrm __fl_common.xfrm /* (saddr,daddr) must be grouped, same order as in IP header */ __be32 saddr; @@ -109,6 +115,7 @@ static inline void flowi4_init_output(struct flowi4 *fl4, int oif, fl4->flowi4_flags = flags; fl4->flowi4_secid = 0; fl4->flowi4_tun_key.tun_id = 0; + fl4->flowi4_xfrm.if_id = 0; fl4->flowi4_uid = uid; fl4->daddr = daddr; fl4->saddr = saddr; @@ -138,6 +145,7 @@ struct flowi6 { #define flowi6_secid __fl_common.flowic_secid #define flowi6_tun_key __fl_common.flowic_tun_key #define flowi6_uid __fl_common.flowic_uid +#define flowi6_xfrm __fl_common.xfrm struct in6_addr daddr; struct in6_addr saddr; /* Note: flowi6_tos is encoded in flowlabel, too. */ @@ -185,6 +193,7 @@ struct flowi { #define flowi_secid u.__fl_common.flowic_secid #define flowi_tun_key u.__fl_common.flowic_tun_key #define flowi_uid u.__fl_common.flowic_uid +#define flowi_xfrm u.__fl_common.xfrm } __attribute__((__aligned__(BITS_PER_LONG/8))); static inline struct flowi *flowi4_to_flowi(struct flowi4 *fl4) -- cgit v1.2.3-59-g8ed1b