From 70e94e66aec255aff276397f5ed3f3626c548f1c Mon Sep 17 00:00:00 2001 From: =?utf8?q?YOSHIFUJI=20Hideaki=20/=20=E5=90=89=E8=97=A4=E8=8B=B1?= =?utf8?q?=E6=98=8E?= Date: Tue, 29 Jan 2013 12:48:50 +0000 Subject: [PATCH] xfrm: Convert xfrm_addr_cmp() to boolean xfrm_addr_equal(). All users of xfrm_addr_cmp() use its result as boolean. Introduce xfrm_addr_equal() (which is equal to !xfrm_addr_cmp()) and convert all users. Signed-off-by: YOSHIFUJI Hideaki Signed-off-by: David S. Miller --- include/net/xfrm.h | 25 ++++++++++++------------- net/key/af_key.c | 8 ++++---- net/xfrm/xfrm_policy.c | 24 ++++++++++++------------ net/xfrm/xfrm_state.c | 34 +++++++++++++++++----------------- net/xfrm/xfrm_user.c | 2 +- 5 files changed, 46 insertions(+), 47 deletions(-) diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 0d8a797f0441..de34883e8b16 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1574,27 +1574,26 @@ extern struct xfrm_algo_desc *xfrm_calg_get_byname(const char *name, int probe); extern struct xfrm_algo_desc *xfrm_aead_get_byname(const char *name, int icv_len, int probe); -static inline int xfrm_addr_cmp(const xfrm_address_t *a, - const xfrm_address_t *b, - int family) +static inline bool xfrm6_addr_equal(const xfrm_address_t *a, + const xfrm_address_t *b) +{ + return ipv6_addr_equal((const struct in6_addr *)a, + (const struct in6_addr *)b); +} + +static inline bool xfrm_addr_equal(const xfrm_address_t *a, + const xfrm_address_t *b, + sa_family_t family) { switch (family) { default: case AF_INET: - return (__force u32)a->a4 - (__force u32)b->a4; + return ((__force u32)a->a4 ^ (__force u32)b->a4) == 0; case AF_INET6: - return ipv6_addr_cmp((const struct in6_addr *)a, - (const struct in6_addr *)b); + return xfrm6_addr_equal(a, b); } } -static inline bool xfrm6_addr_equal(const xfrm_address_t *a, - const xfrm_address_t *b) -{ - return ipv6_addr_equal((const struct in6_addr *)a, - (const struct in6_addr *)b); -} - static inline int xfrm_policy_id2dir(u32 index) { return index & 7; diff --git a/net/key/af_key.c b/net/key/af_key.c index 5b426a646544..cc2630ac8061 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -762,7 +762,7 @@ static struct sk_buff *__pfkey_xfrm_state2msg(const struct xfrm_state *x, } /* identity & sensitivity */ - if (xfrm_addr_cmp(&x->sel.saddr, &x->props.saddr, x->props.family)) + if (!xfrm_addr_equal(&x->sel.saddr, &x->props.saddr, x->props.family)) size += sizeof(struct sadb_address) + sockaddr_size; if (add_keys) { @@ -909,8 +909,8 @@ static struct sk_buff *__pfkey_xfrm_state2msg(const struct xfrm_state *x, if (!addr->sadb_address_prefixlen) BUG(); - if (xfrm_addr_cmp(&x->sel.saddr, &x->props.saddr, - x->props.family)) { + if (!xfrm_addr_equal(&x->sel.saddr, &x->props.saddr, + x->props.family)) { addr = (struct sadb_address*) skb_put(skb, sizeof(struct sadb_address)+sockaddr_size); addr->sadb_address_len = @@ -1321,7 +1321,7 @@ static int pfkey_getspi(struct sock *sk, struct sk_buff *skb, const struct sadb_ if (hdr->sadb_msg_seq) { x = xfrm_find_acq_byseq(net, DUMMY_MARK, hdr->sadb_msg_seq); - if (x && xfrm_addr_cmp(&x->id.daddr, xdaddr, family)) { + if (x && !xfrm_addr_equal(&x->id.daddr, xdaddr, family)) { xfrm_state_put(x); x = NULL; } diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index 07c585756d2a..6c9aa642a2ba 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -2786,10 +2786,10 @@ static bool xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp, { if (sel_cmp->proto == IPSEC_ULPROTO_ANY) { if (sel_tgt->family == sel_cmp->family && - xfrm_addr_cmp(&sel_tgt->daddr, &sel_cmp->daddr, - sel_cmp->family) == 0 && - xfrm_addr_cmp(&sel_tgt->saddr, &sel_cmp->saddr, - sel_cmp->family) == 0 && + xfrm_addr_equal(&sel_tgt->daddr, &sel_cmp->daddr, + sel_cmp->family) && + xfrm_addr_equal(&sel_tgt->saddr, &sel_cmp->saddr, + sel_cmp->family) && sel_tgt->prefixlen_d == sel_cmp->prefixlen_d && sel_tgt->prefixlen_s == sel_cmp->prefixlen_s) { return true; @@ -2847,10 +2847,10 @@ static int migrate_tmpl_match(const struct xfrm_migrate *m, const struct xfrm_tm switch (t->mode) { case XFRM_MODE_TUNNEL: case XFRM_MODE_BEET: - if (xfrm_addr_cmp(&t->id.daddr, &m->old_daddr, - m->old_family) == 0 && - xfrm_addr_cmp(&t->saddr, &m->old_saddr, - m->old_family) == 0) { + if (xfrm_addr_equal(&t->id.daddr, &m->old_daddr, + m->old_family) && + xfrm_addr_equal(&t->saddr, &m->old_saddr, + m->old_family)) { match = 1; } break; @@ -2916,10 +2916,10 @@ static int xfrm_migrate_check(const struct xfrm_migrate *m, int num_migrate) return -EINVAL; for (i = 0; i < num_migrate; i++) { - if ((xfrm_addr_cmp(&m[i].old_daddr, &m[i].new_daddr, - m[i].old_family) == 0) && - (xfrm_addr_cmp(&m[i].old_saddr, &m[i].new_saddr, - m[i].old_family) == 0)) + if (xfrm_addr_equal(&m[i].old_daddr, &m[i].new_daddr, + m[i].old_family) && + xfrm_addr_equal(&m[i].old_saddr, &m[i].new_saddr, + m[i].old_family)) return -EINVAL; if (xfrm_addr_any(&m[i].new_daddr, m[i].new_family) || xfrm_addr_any(&m[i].new_saddr, m[i].new_family)) diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c index 0adae918a7a2..ae01bdbcb294 100644 --- a/net/xfrm/xfrm_state.c +++ b/net/xfrm/xfrm_state.c @@ -691,7 +691,7 @@ static struct xfrm_state *__xfrm_state_lookup(struct net *net, u32 mark, if (x->props.family != family || x->id.spi != spi || x->id.proto != proto || - xfrm_addr_cmp(&x->id.daddr, daddr, family)) + !xfrm_addr_equal(&x->id.daddr, daddr, family)) continue; if ((mark & x->mark.m) != x->mark.v) @@ -715,8 +715,8 @@ static struct xfrm_state *__xfrm_state_lookup_byaddr(struct net *net, u32 mark, hlist_for_each_entry(x, entry, net->xfrm.state_bysrc+h, bysrc) { if (x->props.family != family || x->id.proto != proto || - xfrm_addr_cmp(&x->id.daddr, daddr, family) || - xfrm_addr_cmp(&x->props.saddr, saddr, family)) + !xfrm_addr_equal(&x->id.daddr, daddr, family) || + !xfrm_addr_equal(&x->props.saddr, saddr, family)) continue; if ((mark & x->mark.m) != x->mark.v) @@ -981,8 +981,8 @@ static void __xfrm_state_bump_genids(struct xfrm_state *xnew) if (x->props.family == family && x->props.reqid == reqid && (mark & x->mark.m) == x->mark.v && - !xfrm_addr_cmp(&x->id.daddr, &xnew->id.daddr, family) && - !xfrm_addr_cmp(&x->props.saddr, &xnew->props.saddr, family)) + xfrm_addr_equal(&x->id.daddr, &xnew->id.daddr, family) && + xfrm_addr_equal(&x->props.saddr, &xnew->props.saddr, family)) x->genid++; } } @@ -1016,8 +1016,8 @@ static struct xfrm_state *__find_acq_core(struct net *net, struct xfrm_mark *m, x->id.spi != 0 || x->id.proto != proto || (mark & x->mark.m) != x->mark.v || - xfrm_addr_cmp(&x->id.daddr, daddr, family) || - xfrm_addr_cmp(&x->props.saddr, saddr, family)) + !xfrm_addr_equal(&x->id.daddr, daddr, family) || + !xfrm_addr_equal(&x->props.saddr, saddr, family)) continue; xfrm_state_hold(x); @@ -1100,7 +1100,7 @@ int xfrm_state_add(struct xfrm_state *x) if (use_spi && x->km.seq) { x1 = __xfrm_find_acq_byseq(net, mark, x->km.seq); if (x1 && ((x1->id.proto != x->id.proto) || - xfrm_addr_cmp(&x1->id.daddr, &x->id.daddr, family))) { + !xfrm_addr_equal(&x1->id.daddr, &x->id.daddr, family))) { to_put = x1; x1 = NULL; } @@ -1226,10 +1226,10 @@ struct xfrm_state * xfrm_migrate_state_find(struct xfrm_migrate *m) continue; if (m->reqid && x->props.reqid != m->reqid) continue; - if (xfrm_addr_cmp(&x->id.daddr, &m->old_daddr, - m->old_family) || - xfrm_addr_cmp(&x->props.saddr, &m->old_saddr, - m->old_family)) + if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr, + m->old_family) || + !xfrm_addr_equal(&x->props.saddr, &m->old_saddr, + m->old_family)) continue; xfrm_state_hold(x); return x; @@ -1241,10 +1241,10 @@ struct xfrm_state * xfrm_migrate_state_find(struct xfrm_migrate *m) if (x->props.mode != m->mode || x->id.proto != m->proto) continue; - if (xfrm_addr_cmp(&x->id.daddr, &m->old_daddr, - m->old_family) || - xfrm_addr_cmp(&x->props.saddr, &m->old_saddr, - m->old_family)) + if (!xfrm_addr_equal(&x->id.daddr, &m->old_daddr, + m->old_family) || + !xfrm_addr_equal(&x->props.saddr, &m->old_saddr, + m->old_family)) continue; xfrm_state_hold(x); return x; @@ -1269,7 +1269,7 @@ struct xfrm_state * xfrm_state_migrate(struct xfrm_state *x, memcpy(&xc->props.saddr, &m->new_saddr, sizeof(xc->props.saddr)); /* add state */ - if (!xfrm_addr_cmp(&x->id.daddr, &m->new_daddr, m->new_family)) { + if (xfrm_addr_equal(&x->id.daddr, &m->new_daddr, m->new_family)) { /* a care is needed when the destination address of the state is to be updated as it is a part of triplet */ xfrm_state_insert(xc); diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c index eb872b2e366e..fbd9e6cd0fd7 100644 --- a/net/xfrm/xfrm_user.c +++ b/net/xfrm/xfrm_user.c @@ -1112,7 +1112,7 @@ static int xfrm_alloc_userspi(struct sk_buff *skb, struct nlmsghdr *nlh, mark = xfrm_mark_get(attrs, &m); if (p->info.seq) { x = xfrm_find_acq_byseq(net, mark, p->info.seq); - if (x && xfrm_addr_cmp(&x->id.daddr, daddr, family)) { + if (x && !xfrm_addr_equal(&x->id.daddr, daddr, family)) { xfrm_state_put(x); x = NULL; } -- 2.20.1