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NLM: allow lockd requests from an unprivileged port

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If the admin has specified the "noresvport" option for an NFS mount
point, the kernel's NFS client uses an unprivileged source port for
the main NFS transport.  The kernel's lockd client should use an
unprivileged port in this case as well.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2008-12-23 15:21:38 -05:00 • committed by Trond Myklebust
parent 50a737f86d
commit 0cb2659b81
5 changed files with 16 additions and 3 deletions
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1
include/linux/lockd/bind.h
View file

@ -41,6 +41,7 @@ struct nlmclnt_initdata {
size_t addrlen;
unsigned short protocol;
u32 nfs_version;
int noresvport;
};
/*

4
include/linux/lockd/lockd.h
View file

@ -49,6 +49,7 @@ struct nlm_host {
unsigned short h_proto; /* transport proto */
unsigned short h_reclaiming : 1,
h_server : 1, /* server side, not client side */
h_noresvport : 1,
h_inuse : 1;
wait_queue_head_t h_gracewait; /* wait while reclaiming */
struct rw_semaphore h_rwsem; /* Reboot recovery lock */
@ -220,7 +221,8 @@ struct nlm_host *nlmclnt_lookup_host(const struct sockaddr *sap,
const size_t salen,
const unsigned short protocol,
const u32 version,
const char *hostname);
const char *hostname,
int noresvport);
struct nlm_host *nlmsvc_lookup_host(const struct svc_rqst *rqstp,
const char *hostname,
const size_t hostname_len);