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xfrm: Convert several xfrm policy match functions to bool.

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xfrm_selector_match
xfrm_sec_ctx_match
__xfrm4_selector_match
__xfrm6_selector_match

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2012-05-15 15:04:57 -04:00
parent e87cc4728f
commit bc9b35ad41
2 changed files with 20 additions and 19 deletions
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12
include/net/xfrm.h
View File

@ -886,15 +886,15 @@ __be16 xfrm_flowi_dport(const struct flowi *fl, const union flowi_uli *uli)
return port;
}
extern int xfrm_selector_match(const struct xfrm_selector *sel,
const struct flowi *fl,
unsigned short family);
extern bool xfrm_selector_match(const struct xfrm_selector *sel,
const struct flowi *fl,
unsigned short family);
#ifdef CONFIG_SECURITY_NETWORK_XFRM
/* If neither has a context --> match
* Otherwise, both must have a context and the sids, doi, alg must match
*/
static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2)
static inline bool xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2)
{
return ((!s1 && !s2) ||
(s1 && s2 &&
@ -903,9 +903,9 @@ static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ct
(s1->ctx_alg == s2->ctx_alg)));
}
#else
static inline int xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2)
static inline bool xfrm_sec_ctx_match(struct xfrm_sec_ctx *s1, struct xfrm_sec_ctx *s2)
{
return 1;
return true;
}
#endif

27
net/xfrm/xfrm_policy.c
View File

@ -56,7 +56,7 @@ static int xfrm_bundle_ok(struct xfrm_dst *xdst);
static struct xfrm_policy *__xfrm_policy_unlink(struct xfrm_policy *pol,
int dir);
static inline int
static inline bool
__xfrm4_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
{
const struct flowi4 *fl4 = &fl->u.ip4;
@ -69,7 +69,7 @@ __xfrm4_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
(fl4->flowi4_oif == sel->ifindex || !sel->ifindex);
}
static inline int
static inline bool
__xfrm6_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
{
const struct flowi6 *fl6 = &fl->u.ip6;
@ -82,8 +82,8 @@ __xfrm6_selector_match(const struct xfrm_selector *sel, const struct flowi *fl)
(fl6->flowi6_oif == sel->ifindex || !sel->ifindex);
}
int xfrm_selector_match(const struct xfrm_selector *sel, const struct flowi *fl,
unsigned short family)
bool xfrm_selector_match(const struct xfrm_selector *sel, const struct flowi *fl,
unsigned short family)
{
switch (family) {
case AF_INET:
@ -91,7 +91,7 @@ int xfrm_selector_match(const struct xfrm_selector *sel, const struct flowi *fl,
case AF_INET6:
return __xfrm6_selector_match(sel, fl);
}
return 0;
return false;
}
static inline struct dst_entry *__xfrm_dst_lookup(struct net *net, int tos,
@ -877,7 +877,8 @@ static int xfrm_policy_match(const struct xfrm_policy *pol,
u8 type, u16 family, int dir)
{
const struct xfrm_selector *sel = &pol->selector;
int match, ret = -ESRCH;
int ret = -ESRCH;
bool match;
if (pol->family != family ||
(fl->flowi_mark & pol->mark.m) != pol->mark.v ||
@ -1006,8 +1007,8 @@ static struct xfrm_policy *xfrm_sk_policy_lookup(struct sock *sk, int dir,
read_lock_bh(&xfrm_policy_lock);
if ((pol = sk->sk_policy[dir]) != NULL) {
int match = xfrm_selector_match(&pol->selector, fl,
sk->sk_family);
bool match = xfrm_selector_match(&pol->selector, fl,
sk->sk_family);
int err = 0;
if (match) {
@ -2767,8 +2768,8 @@ EXPORT_SYMBOL_GPL(xfrm_audit_policy_delete);
#endif
#ifdef CONFIG_XFRM_MIGRATE
static int xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp,
const struct xfrm_selector *sel_tgt)
static bool xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp,
const struct xfrm_selector *sel_tgt)
{
if (sel_cmp->proto == IPSEC_ULPROTO_ANY) {
if (sel_tgt->family == sel_cmp->family &&
@ -2778,14 +2779,14 @@ static int xfrm_migrate_selector_match(const struct xfrm_selector *sel_cmp,
sel_cmp->family) == 0 &&
sel_tgt->prefixlen_d == sel_cmp->prefixlen_d &&
sel_tgt->prefixlen_s == sel_cmp->prefixlen_s) {
return 1;
return true;
}
} else {
if (memcmp(sel_tgt, sel_cmp, sizeof(*sel_tgt)) == 0) {
return 1;
return true;
}
}
return 0;
return false;
}
static struct xfrm_policy * xfrm_migrate_policy_find(const struct xfrm_selector *sel,