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Commit 92113bfd authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

ipv6: bool conversions phase1 



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: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cbc264ca

include/net/ipv6.h

+15 −15
Original line number Original line Diff line number Diff line
@@ -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 *ipv6_fixup_options(struct ipv6_txoptions *opt_space,

					  struct ipv6_txoptions *opt);

					  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_nqueues(struct net *net);

int ip6_frag_mem(struct net *net);

int ip6_frag_mem(struct net *net);
@@ -332,7 +332,7 @@ static inline void ipv6_addr_set(struct in6_addr *addr, 
	addr->s6_addr32[3] = w4;

	addr->s6_addr32[3] = w4;

}

}





static inline int ipv6_addr_equal(const struct in6_addr *a1,

static inline bool ipv6_addr_equal(const struct in6_addr *a1,

				   const struct in6_addr *a2)

				   const struct in6_addr *a2)

{

{

	return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |

	return ((a1->s6_addr32[0] ^ a2->s6_addr32[0]) |
@@ -341,7 +341,7 @@ static inline int ipv6_addr_equal(const struct in6_addr *a1, 
		(a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;

		(a1->s6_addr32[3] ^ a2->s6_addr32[3])) == 0;

}

}





static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,

static inline bool __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2,

				       unsigned int prefixlen)

				       unsigned int prefixlen)

{

{

	unsigned int pdw, pbi;

	unsigned int pdw, pbi;
@@ -349,17 +349,17 @@ static inline int __ipv6_prefix_equal(const __be32 *a1, const __be32 *a2, 
	/* check complete u32 in prefix */

	/* check complete u32 in prefix */

	pdw = prefixlen >> 5;

	pdw = prefixlen >> 5;

	if (pdw && memcmp(a1, a2, pdw << 2))

	if (pdw && memcmp(a1, a2, pdw << 2))

		return 0;

		return false;





	/* check incomplete u32 in prefix */

	/* check incomplete u32 in prefix */

	pbi = prefixlen & 0x1f;

	pbi = prefixlen & 0x1f;

	if (pbi && ((a1[pdw] ^ a2[pdw]) & htonl((0xffffffff) << (32 - pbi))))

	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,

static inline bool ipv6_prefix_equal(const struct in6_addr *a1,

				     const struct in6_addr *a2,

				     const struct in6_addr *a2,

				     unsigned int prefixlen)

				     unsigned int prefixlen)

{

{
@@ -389,19 +389,19 @@ struct ip6_create_arg { 
void ip6_frag_init(struct inet_frag_queue *q, void *a);

void ip6_frag_init(struct inet_frag_queue *q, void *a);

bool ip6_frag_match(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] |

	return (a->s6_addr32[0] | a->s6_addr32[1] |

		a->s6_addr32[2] | a->s6_addr32[3]) == 0;

		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] |

	return (a->s6_addr32[0] | a->s6_addr32[1] |

		a->s6_addr32[2] | (a->s6_addr32[3] ^ htonl(1))) == 0;

		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] |

	return (a->s6_addr32[0] | a->s6_addr32[1] |

		 (a->s6_addr32[2] ^ htonl(0x0000ffff))) == 0;

		 (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

 * Check for a RFC 4843 ORCHID address

 * (Overlay Routable Cryptographic Hash Identifiers)

 * (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);

	return (a->s6_addr32[0] & htonl(0xfffffff0)) == htonl(0x20010010);

}

}

net/ipv6/af_inet6.c

+5 −5
Original line number Original line Diff line number Diff line
@@ -678,10 +678,10 @@ int inet6_sk_rebuild_header(struct sock *sk) 
}

}

EXPORT_SYMBOL_GPL(inet6_sk_rebuild_header);

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);

	const struct ipv6_pinfo *np = inet6_sk(sk);

	struct inet6_skb_parm *opt = IP6CB(skb);

	const struct inet6_skb_parm *opt = IP6CB(skb);





	if (np->rxopt.all) {

	if (np->rxopt.all) {

		if ((opt->hop && (np->rxopt.bits.hopopts ||

		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)) ||

		     np->rxopt.bits.osrcrt)) ||

		    ((opt->dst1 || opt->dst0) &&

		    ((opt->dst1 || opt->dst0) &&

		     (np->rxopt.bits.dstopts || np->rxopt.bits.odstopts)))

		     (np->rxopt.bits.dstopts || np->rxopt.bits.odstopts)))

			return 1;

			return true;

	}

	}

	return 0;

	return false;

}

}

EXPORT_SYMBOL_GPL(ipv6_opt_accepted);

EXPORT_SYMBOL_GPL(ipv6_opt_accepted);

net/ipv6/ip6_tunnel.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -818,7 +818,7 @@ static void init_tel_txopt(struct ipv6_tel_txoption *opt, __u8 encap_limit) 
 *   0 else

 *   0 else

 **/

 **/





static inline int

static inline bool

ip6_tnl_addr_conflict(const struct ip6_tnl *t, const struct ipv6hdr *hdr)

ip6_tnl_addr_conflict(const struct ip6_tnl *t, const struct ipv6hdr *hdr)

{

{

	return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);

	return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);