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| author | Chuck Lever <chuck.lever@oracle.com> | 2008-12-11 23:56:52 +0100 |
|---|---|---|
| committer | J. Bruce Fields <bfields@citi.umich.edu> | 2009-01-06 17:53:56 +0100 |
| commit | 57ef692588bc225853ca3267ca5b7cea2b07e058 (patch) | |
| tree | d643d6d9d503288078b989aa37abc89cf1d78a6b /include | |
| parent | NLM: nlm_privileged_requester() doesn't recognize mapped loopback address (diff) | |
| download | linux-57ef692588bc225853ca3267ca5b7cea2b07e058.tar.xz linux-57ef692588bc225853ca3267ca5b7cea2b07e058.zip | |
NLM: Rewrite IPv4 privileged requester's check
Clean up.
For consistency, rewrite the IPv4 check to match the same style as the
new IPv6 check. Note that ipv4_is_loopback() is somewhat broader in
its interpretation of what is a loopback address than simply
"127.0.0.1".
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/lockd/lockd.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h index 80d7e8a8257d..aa6fe7026de7 100644 --- a/include/linux/lockd/lockd.h +++ b/include/linux/lockd/lockd.h @@ -291,8 +291,11 @@ static inline struct inode *nlmsvc_file_inode(struct nlm_file *file) static inline int __nlm_privileged_request4(const struct sockaddr *sap) { const struct sockaddr_in *sin = (struct sockaddr_in *)sap; - return (sin->sin_addr.s_addr == htonl(INADDR_LOOPBACK)) && - (ntohs(sin->sin_port) < 1024); + + if (ntohs(sin->sin_port) > 1023) + return 0; + + return ipv4_is_loopback(sin->sin_addr.s_addr); } #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) |