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ipv6: bool conversions phase1

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ipv6_opt_accepted() returns a bool, and can use const pointers

ipv6_addr_equal(), ipv6_addr_any(), ipv6_addr_loopback(),
ipv6_addr_orchid() return a bool.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2012-05-18 08:14:11 +02:00 • committed by David S. Miller
parent cbc264cacd
commit 92113bfde2
3 changed files with 21 additions and 21 deletions
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30
include/net/ipv6.h
View file

@ -263,7 +263,7 @@ extern struct ipv6_txoptions * ipv6_renew_options(struct sock *sk, struct ipv6_t
struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
struct ipv6_txoptions *opt);
extern int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb);
extern bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
int ip6_frag_nqueues(struct net *net);
int ip6_frag_mem(struct net *net);
@ -332,8 +332,8 @@ static inline void ipv6_addr_set(struct in6_addr *addr,
addr->s6_addr32[3] = w4;
}
static inline int ipv6_addr_equal(const struct in6_addr *a1,
const struct in6_addr *a2)
static inline bool ipv6_addr_equal(const struct in6_addr *a1,
const struct in6_addr *a2)
{
return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
(a1->s6_addr32[1] ^ a2->s6_addr32[1]) |
@ -341,27 +341,27 @@ static inline int ipv6_addr_equal(const struct in6_addr *a1,
(a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;
}
static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
unsigned int prefixlen)
static inline bool __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,
unsigned int prefixlen)
{
unsigned int pdw, pbi;
/* check complete u32 in prefix */
pdw = prefixlen >> 5;
if (pdw && memcmp(a1, a2, pdw << 2))
return 0;
return false;
/* check incomplete u32 in prefix */
pbi = prefixlen & 0x1f;
if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi))))
return 0;
return false;
return 1;
return true;
}
static inline int ipv6_prefix_equal(const struct in6_addr *a1,
const struct in6_addr *a2,
unsigned int prefixlen)
static inline bool ipv6_prefix_equal(const struct in6_addr *a1,
const struct in6_addr *a2,
unsigned int prefixlen)
{
return __ipv6_prefix_equal(a1->s6_addr32, a2->s6_addr32,
prefixlen);
@ -389,19 +389,19 @@ struct ip6_create_arg {
void ip6_frag_init(struct inet_frag_queue *q, void *a);
bool ip6_frag_match(struct inet_frag_queue *q, void *a);
static inline int ipv6_addr_any(const struct in6_addr *a)
static inline bool ipv6_addr_any(const struct in6_addr *a)
{
return (a->s6_addr32[0] | a->s6_addr32[1] |
a->s6_addr32[2] | a->s6_addr32[3]) == 0;
}
static inline int ipv6_addr_loopback(const struct in6_addr *a)
static inline bool ipv6_addr_loopback(const struct in6_addr *a)
{
return (a->s6_addr32[0] | a->s6_addr32[1] |
a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0;
}
static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
static inline bool ipv6_addr_v4mapped(const struct in6_addr *a)
{
return (a->s6_addr32[0] | a->s6_addr32[1] |
(a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0;
@ -411,7 +411,7 @@ static inline int ipv6_addr_v4mapped(const struct in6_addr *a)
* Check for a RFC 4843 ORCHID address
* (Overlay Routable Cryptographic Hash Identifiers)
*/
static inline int ipv6_addr_orchid(const struct in6_addr *a)
static inline bool ipv6_addr_orchid(const struct in6_addr *a)
{
return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);
}

10
net/ipv6/af_inet6.c
View file

@ -678,10 +678,10 @@ int inet6_sk_rebuild_header(struct sock *sk)
}
EXPORT_SYMBOL_GPL(inet6_sk_rebuild_header);
int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb)
bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb)
{
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet6_skb_parm *opt = IP6CB(skb);
const struct ipv6_pinfo *np = inet6_sk(sk);
const struct inet6_skb_parm *opt = IP6CB(skb);
if (np->rxopt.all) {
if ((opt->hop && (np->rxopt.bits.hopopts ||
@ -693,9 +693,9 @@ int ipv6_opt_accepted(struct sock *sk, struct sk_buff *skb)
np->rxopt.bits.osrcrt)) ||
((opt->dst1 || opt->dst0) &&
(np->rxopt.bits.dstopts || np->rxopt.bits.odstopts)))
return 1;
return true;
}
return 0;
return false;
}
EXPORT_SYMBOL_GPL(ipv6_opt_accepted);

2
net/ipv6/ip6_tunnel.c
View file

@ -818,7 +818,7 @@ static void init_tel_txopt(struct ipv6_tel_txoption *opt, __u8 encap_limit)
* 0 else
**/
static inline int
static inline bool
ip6_tnl_addr_conflict(const struct ip6_tnl *t, const struct ipv6hdr *hdr)
{
return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);