From b9dd3abbbc708da5e3c53424a5b2c66ab580f97e Mon Sep 17 00:00:00 2001 From: Mi Jinlong Date: Wed, 12 Oct 2011 15:09:34 +0800 Subject: [PATCH] nfs: fix bug about IPv6 address scope checking The result from ipv6_addr_scope() always not be a single SCOPE, so we can't use equal to compare the result with IPV6_ADDR_SCOPE_LINKLOCAL at nfs_sockaddr_match_ipaddr6. This patch fixs the problem, and lets checking address before scope_id. Signed-off-by: Mi Jinlong Signed-off-by: Trond Myklebust --- fs/nfs/client.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 5833fbbf59b..b4e41dd4d0f 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -336,11 +336,12 @@ static int nfs_sockaddr_match_ipaddr6(const struct sockaddr *sa1, const struct sockaddr_in6 *sin1 = (const struct sockaddr_in6 *)sa1; const struct sockaddr_in6 *sin2 = (const struct sockaddr_in6 *)sa2; - if (ipv6_addr_scope(&sin1->sin6_addr) == IPV6_ADDR_SCOPE_LINKLOCAL && - sin1->sin6_scope_id != sin2->sin6_scope_id) + if (!ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr)) return 0; + else if (ipv6_addr_type(&sin1->sin6_addr) & IPV6_ADDR_LINKLOCAL) + return sin1->sin6_scope_id == sin2->sin6_scope_id; - return ipv6_addr_equal(&sin1->sin6_addr, &sin2->sin6_addr); + return 1; } #else /* !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE) */ static int nfs_sockaddr_match_ipaddr6(const struct sockaddr *sa1, -- 2.11.4.GIT