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Commit 7e9d7746 authored by Chuck Lever's avatar Chuck Lever Committed by J. Bruce Fields
Browse files

NSM: Use sockaddr_storage for sm_addr field 



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

Signed-off-by: default avatarChuck Lever <chuck.lever@oracle.com>
Signed-off-by: default avatarJ. Bruce Fields <bfields@citi.umich.edu>
parent 90151e6e

fs/lockd/host.c

+3 −2
Original line number Diff line number Diff line
@@ -551,7 +551,7 @@ __nsm_find(const struct sockaddr_in *sin, 
			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 @@ __nsm_find(const struct sockaddr_in *sin, 
	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';

fs/lockd/mon.c

+1 −1
Original line number Diff line number Diff line
@@ -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;

include/linux/lockd/lockd.h

+12 −1
Original line number Diff line number Diff line
@@ -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"

 */