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Merge commit '9f4c899c0d90e1b51b6864834f3877b47c161a0e' into devel

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This commit is contained in:
Trond Myklebust 2009-03-28 16:50:58 -04:00
commit d188262d60
1 changed files with 39 additions and 29 deletions
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68
fs/nfs/client.c
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@ -255,6 +255,32 @@ static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
}
return 0;
}
/*
* Test if two ip6 socket addresses refer to the same socket by
* comparing relevant fields. The padding bytes specifically, are not
* compared. sin6_flowinfo is not compared because it only affects QoS
* and sin6_scope_id is only compared if the address is "link local"
* because "link local" addresses need only be unique to a specific
* link. Conversely, ordinary unicast addresses might have different
* sin6_scope_id.
*
* The caller should ensure both socket addresses are AF_INET6.
*/
static int nfs_sockaddr_cmp_ip6(const struct sockaddr *sa1,
const struct sockaddr *sa2)
{
const struct sockaddr_in6 *saddr1 = (const struct sockaddr_in6 *)sa1;
const struct sockaddr_in6 *saddr2 = (const struct sockaddr_in6 *)sa2;
if (!ipv6_addr_equal(&saddr1->sin6_addr,
&saddr1->sin6_addr))
return 0;
if (ipv6_addr_scope(&saddr1->sin6_addr) == IPV6_ADDR_SCOPE_LINKLOCAL &&
saddr1->sin6_scope_id != saddr2->sin6_scope_id)
return 0;
return saddr1->sin6_port == saddr2->sin6_port;
}
#else
static int nfs_sockaddr_match_ipaddr4(const struct sockaddr_in *sa1,
const struct sockaddr_in *sa2)
@ -270,6 +296,12 @@ static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
return nfs_sockaddr_match_ipaddr4((const struct sockaddr_in *)sa1,
(const struct sockaddr_in *)sa2);
}
static int nfs_sockaddr_cmp_ip6(const struct sockaddr * sa1,
const struct sockaddr * sa2)
{
return 0;
}
#endif
/*
@ -279,37 +311,17 @@ static int nfs_sockaddr_match_ipaddr(const struct sockaddr *sa1,
*
* The caller should ensure both socket addresses are AF_INET.
*/
static int nfs_sockaddr_cmp_ip4(const struct sockaddr_in * saddr1,
const struct sockaddr_in * saddr2)
static int nfs_sockaddr_cmp_ip4(const struct sockaddr *sa1,
const struct sockaddr *sa2)
{
const struct sockaddr_in *saddr1 = (const struct sockaddr_in *)sa1;
const struct sockaddr_in *saddr2 = (const struct sockaddr_in *)sa2;
if (saddr1->sin_addr.s_addr != saddr2->sin_addr.s_addr)
return 0;
return saddr1->sin_port == saddr2->sin_port;
}
/*
* Test if two ip6 socket addresses refer to the same socket by
* comparing relevant fields. The padding bytes specifically, are not
* compared. sin6_flowinfo is not compared because it only affects QoS
* and sin6_scope_id is only compared if the address is "link local"
* because "link local" addresses need only be unique to a specific
* link. Conversely, ordinary unicast addresses might have different
* sin6_scope_id.
*
* The caller should ensure both socket addresses are AF_INET6.
*/
static int nfs_sockaddr_cmp_ip6 (const struct sockaddr_in6 * saddr1,
const struct sockaddr_in6 * saddr2)
{
if (!ipv6_addr_equal(&saddr1->sin6_addr,
&saddr1->sin6_addr))
return 0;
if (ipv6_addr_scope(&saddr1->sin6_addr) == IPV6_ADDR_SCOPE_LINKLOCAL &&
saddr1->sin6_scope_id != saddr2->sin6_scope_id)
return 0;
return saddr1->sin6_port == saddr2->sin6_port;
}
/*
* Test if two socket addresses represent the same actual socket,
* by comparing (only) relevant fields.
@ -322,11 +334,9 @@ static int nfs_sockaddr_cmp(const struct sockaddr *sa1,
switch (sa1->sa_family) {
case AF_INET:
return nfs_sockaddr_cmp_ip4((const struct sockaddr_in *) sa1,
(const struct sockaddr_in *) sa2);
return nfs_sockaddr_cmp_ip4(sa1, sa2);
case AF_INET6:
return nfs_sockaddr_cmp_ip6((const struct sockaddr_in6 *) sa1,
(const struct sockaddr_in6 *) sa2);
return nfs_sockaddr_cmp_ip6(sa1, sa2);
}
return 0;
}