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| author | Ilya Dryomov <idryomov@gmail.com> | 2015-07-09 13:57:52 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2015-07-09 20:30:34 +0300 |
| commit | c44bd69c0c8cfadf0239437635b2933efb1f6c4c (patch) | |
| tree | 39ad695bef47fc7707433305820dbd56a6c93e0c /net | |
| parent | 757856d2b9568a701df9ea6a4be68effbb9d6f44 (diff) | |
| download | lwn-c44bd69c0c8cfadf0239437635b2933efb1f6c4c.tar.gz lwn-c44bd69c0c8cfadf0239437635b2933efb1f6c4c.zip | |
libceph: treat sockaddr_storage with uninitialized family as blank
addr_is_blank() should return true if family is neither AF_INET nor
AF_INET6. This is what its counterpart entity_addr_t::is_blank_ip() is
doing and it is the right thing to do: in process_banner() we check if
our address is blank and if it is "learn" it from our peer. As it is,
we never learn our address and always send out a blank one. This goes
way back to ceph.git commit dd732cbfc1c9 ("use sockaddr_storage; and
some ipv6 support groundwork") from 2009.
While at at, do not open-code ipv6_addr_any() and use INADDR_ANY
constant instead of 0.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Sage Weil <sage@redhat.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ceph/messenger.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 5c1f98ea6741..e3be1d22a247 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -1732,17 +1732,17 @@ static int verify_hello(struct ceph_connection *con) static bool addr_is_blank(struct sockaddr_storage *ss) { + struct in_addr *addr = &((struct sockaddr_in *)ss)->sin_addr; + struct in6_addr *addr6 = &((struct sockaddr_in6 *)ss)->sin6_addr; + switch (ss->ss_family) { case AF_INET: - return ((struct sockaddr_in *)ss)->sin_addr.s_addr == 0; + return addr->s_addr == htonl(INADDR_ANY); case AF_INET6: - return - ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[0] == 0 && - ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[1] == 0 && - ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[2] == 0 && - ((struct sockaddr_in6 *)ss)->sin6_addr.s6_addr32[3] == 0; + return ipv6_addr_any(addr6); + default: + return true; } - return false; } static int addr_port(struct sockaddr_storage *ss) |