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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 <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
YOSHIFUJI Hideaki / 吉藤英明 2013-01-29 12:48:50 +00:00 committed by David S. Miller
parent ff88b30c71
commit 70e94e66ae
5 changed files with 47 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
include/net/xfrm.h
View File

@ -1574,20 +1574,6 @@ 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)
{
switch (family) {
default:
case AF_INET:
return (__force u32)a->a4 - (__force u32)b->a4;
case AF_INET6:
return ipv6_addr_cmp((const struct in6_addr *)a,
(const struct in6_addr *)b);
}
}
static inline bool xfrm6_addr_equal(const xfrm_address_t *a,
const xfrm_address_t *b)
{
@ -1595,6 +1581,19 @@ static inline bool xfrm6_addr_equal(const xfrm_address_t *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) == 0;
case AF_INET6:
return xfrm6_addr_equal(a, b);
}
}
static inline int xfrm_policy_id2dir(u32 index)
{
return index & 7;

8
net/key/af_key.c
View File

@ -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;
}

24
net/xfrm/xfrm_policy.c
View File

@ -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))

34
net/xfrm/xfrm_state.c
View File

@ -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);

2
net/xfrm/xfrm_user.c
View File

@ -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;
}