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NSM: Use sockaddr_storage for sm_addr field

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To store larger addresses in the nsm_handle structure, make sm_addr a
sockaddr_storage.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
This commit is contained in:
Chuck Lever 2008-09-03 14:35:54 -04:00 committed by J. Bruce Fields
parent 90151e6e4d
commit 7e9d7746bf
3 changed files with 16 additions and 4 deletions
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5
fs/lockd/host.c
View File

@ -551,7 +551,7 @@ retry:
if (strlen(pos->sm_name) != hostname_len
|| memcmp(pos->sm_name, hostname, hostname_len))
continue;
} else if (!nlm_cmp_addr(&pos->sm_addr, sin))
} else if (!nlm_cmp_addr(nsm_addr_in(pos), sin))
continue;
atomic_inc(&pos->sm_count);
kfree(nsm);
@ -571,7 +571,8 @@ retry:
if (nsm == NULL)
return NULL;
nsm->sm_addr = *sin;
memcpy(nsm_addr(nsm), sin, sizeof(*sin));
nsm->sm_addrlen = sizeof(*sin);
nsm->sm_name = (char *) (nsm + 1);
memcpy(nsm->sm_name, hostname, hostname_len);
nsm->sm_name[hostname_len] = '\0';

2
fs/lockd/mon.c
View File

@ -51,7 +51,7 @@ nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res)
memset(&args, 0, sizeof(args));
args.mon_name = nsm->sm_name;
args.addr = nsm->sm_addr.sin_addr.s_addr;
args.addr = nsm_addr_in(nsm)->sin_addr.s_addr;
args.prog = NLM_PROGRAM;
args.vers = 3;
args.proc = NLMPROC_NSM_NOTIFY;

13
include/linux/lockd/lockd.h
View File

@ -71,7 +71,8 @@ struct nsm_handle {
struct list_head sm_link;
atomic_t sm_count;
char * sm_name;
struct sockaddr_in sm_addr;
struct sockaddr_storage sm_addr;
size_t sm_addrlen;
unsigned int sm_monitored : 1,
sm_sticky : 1; /* don't unmonitor */
char sm_addrbuf[48]; /* address eyecatcher */
@ -100,6 +101,16 @@ static inline struct sockaddr *nlm_srcaddr(const struct nlm_host *host)
return (struct sockaddr *)&host->h_srcaddr;
}
static inline struct sockaddr_in *nsm_addr_in(const struct nsm_handle *handle)
{
return (struct sockaddr_in *)&handle->sm_addr;
}
static inline struct sockaddr *nsm_addr(const struct nsm_handle *handle)
{
return (struct sockaddr *)&handle->sm_addr;
}
/*
* Map an fl_owner_t into a unique 32-bit "pid"
*/