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| author | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-04-27 17:50:45 +0200 |
|---|---|---|
| committer | YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> | 2008-06-11 19:38:15 +0200 |
| commit | 9e8b4ed8bb7d2f0f91dccf0abf648771d76e7a01 (patch) | |
| tree | 44be0ec32b667eb5d4dbf3448a4b44cdfac5b9f1 | |
| parent | ipv6 netns: Address labels per namespace (diff) | |
| download | linux-9e8b4ed8bb7d2f0f91dccf0abf648771d76e7a01.tar.xz linux-9e8b4ed8bb7d2f0f91dccf0abf648771d76e7a01.zip | |
key: Introduce pfkey_sockaddr_len() for raw sockaddr{} length.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
| -rw-r--r-- | net/key/af_key.c | 50 |
1 files changed, 19 insertions, 31 deletions
diff --git a/net/key/af_key.c b/net/key/af_key.c index 9bba7ac5fee0..02c8aba4239e 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -579,6 +579,19 @@ static uint8_t pfkey_proto_from_xfrm(uint8_t proto) return (proto ? proto : IPSEC_PROTO_ANY); } +static inline int pfkey_sockaddr_len(sa_family_t family) +{ + switch (family) { + case AF_INET: + return sizeof(struct sockaddr_in); +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) + case AF_INET6: + return sizeof(struct sockaddr_in6); +#endif + } + return 0; +} + static int pfkey_sadb_addr2xfrm_addr(struct sadb_address *addr, xfrm_address_t *xaddr) { @@ -642,20 +655,11 @@ static struct xfrm_state *pfkey_xfrm_state_lookup(struct sadb_msg *hdr, void ** } #define PFKEY_ALIGN8(a) (1 + (((a) - 1) | (8 - 1))) + static int pfkey_sockaddr_size(sa_family_t family) { - switch (family) { - case AF_INET: - return PFKEY_ALIGN8(sizeof(struct sockaddr_in)); -#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) - case AF_INET6: - return PFKEY_ALIGN8(sizeof(struct sockaddr_in6)); -#endif - default: - return 0; - } - /* NOTREACHED */ + return PFKEY_ALIGN8(pfkey_sockaddr_len(family)); } static inline int pfkey_mode_from_xfrm(int mode) @@ -1952,9 +1956,7 @@ static int pfkey_xfrm_policy2msg_size(struct xfrm_policy *xp) for (i=0; i<xp->xfrm_nr; i++) { t = xp->xfrm_vec + i; - socklen += (t->encap_family == AF_INET ? - sizeof(struct sockaddr_in) : - sizeof(struct sockaddr_in6)); + socklen += pfkey_sockaddr_len(t->encap_family); } return sizeof(struct sadb_msg) + @@ -1996,9 +1998,7 @@ static int pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, in int i; int size; int sockaddr_size = pfkey_sockaddr_size(xp->family); - int socklen = (xp->family == AF_INET ? - sizeof(struct sockaddr_in) : - sizeof(struct sockaddr_in6)); + int socklen = pfkey_sockaddr_len(xp->family); size = pfkey_xfrm_policy2msg_size(xp); @@ -2122,9 +2122,7 @@ static int pfkey_xfrm_policy2msg(struct sk_buff *skb, struct xfrm_policy *xp, in req_size = sizeof(struct sadb_x_ipsecrequest); if (t->mode == XFRM_MODE_TUNNEL) - req_size += ((t->encap_family == AF_INET ? - sizeof(struct sockaddr_in) : - sizeof(struct sockaddr_in6)) * 2); + req_size += pfkey_sockaddr_len(t->encap_family) * 2; else size -= 2*socklen; rq = (void*)skb_put(skb, req_size); @@ -2459,17 +2457,7 @@ out: #ifdef CONFIG_NET_KEY_MIGRATE static int pfkey_sockaddr_pair_size(sa_family_t family) { - switch (family) { - case AF_INET: - return PFKEY_ALIGN8(sizeof(struct sockaddr_in) * 2); -#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) - case AF_INET6: - return PFKEY_ALIGN8(sizeof(struct sockaddr_in6) * 2); -#endif - default: - return 0; - } - /* NOTREACHED */ + return PFKEY_ALIGN8(pfkey_sockaddr_len(family) * 2); } static int parse_sockaddr_pair(struct sadb_x_ipsecrequest *rq, |