Attachment 153430 Details for Bug 236823 – patch -- make auth_reload take sub-second timestamps into account

[patch] patch -- make auth_reload take sub-second timestamps into account

nfs-utils-1.0.12-authreload-usec.patch (text/plain), 3.88 KB, created by Jeff Layton on 2007-04-25 17:20:05 UTC

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Creator: Jeff Layton

Created: 2007-04-25 17:20:05 UTC

Size: 3.88 KB

patch

obsolete

>diff --git a/utils/mountd/auth.c b/utils/mountd/auth.c
>index 183c9ea..54e7516 100644
>--- a/utils/mountd/auth.c
>+++ b/utils/mountd/auth.c
>@@ -42,28 +42,34 @@ auth_init(char *exports)
> {
> 
> 	export_file = exports;
>-	auth_reload();
>+	auth_reload(NULL);
> 	xtab_mount_write();
> }
> 
>-time_t
>-auth_reload()
>+void
>+auth_reload(struct timespec *ts)
> {
> 	struct stat		stb;
>-	static time_t		last_modified = 0;
>+	static struct timespec	last_modified;
> 
> 	if (stat(_PATH_ETAB, &stb) < 0)
> 		xlog(L_FATAL, "couldn't stat %s", _PATH_ETAB);
>-	if (stb.st_mtime == last_modified)
>-		return last_modified;
>-	last_modified = stb.st_mtime;
>+	if (stb.st_mtim.tv_sec == last_modified.tv_sec &&
>+	    stb.st_mtim.tv_nsec == last_modified.tv_nsec)
>+		goto out;
> 
>+	last_modified.tv_sec = stb.st_mtim.tv_sec;
>+	last_modified.tv_nsec = stb.st_mtim.tv_nsec;
> 	export_freeall();
> 	memset(&my_client, 0, sizeof(my_client));
> 	// export_read(export_file);
> 	xtab_export_read();
>-
>-	return last_modified;
>+out:
>+	if (ts) {
>+		ts->tv_sec = stb.st_mtim.tv_sec;
>+		ts->tv_nsec = stb.st_mtim.tv_nsec;
>+	}
>+	return;
> }
> 
> static nfs_export *
>diff --git a/utils/mountd/cache.c b/utils/mountd/cache.c
>index d068843..77c559f 100644
>--- a/utils/mountd/cache.c
>+++ b/utils/mountd/cache.c
>@@ -90,7 +90,7 @@ void auth_unix_ip(FILE *f)
> 	if (inet_aton(ipaddr, &addr)==0)
> 		return;
> 
>-	auth_reload();
>+	auth_reload(NULL);
> 
> 	/* addr is a valid, interesting address, find the domain name... */
> 	client = client_compose(addr);
>@@ -354,7 +354,7 @@ void nfsd_fh(FILE *f)
> 		break;
> 	}
> 
>-	auth_reload();
>+	auth_reload(NULL);
> 
> 	/* Now determine export point for this fsid/domain */
> 	for (i=0 ; i < MCL_MAXTYPES; i++) {
>@@ -575,7 +575,7 @@ void nfsd_export(FILE *f)
> 	if (qword_get(&cp, path, strlen(lbuf)) <= 0)
> 		goto out;
> 
>-	auth_reload();
>+	auth_reload(NULL);
> 
> 	/* now find flags for this export point in this domain */
> 	for (i=0 ; i < MCL_MAXTYPES; i++) {
>diff --git a/utils/mountd/mountd.c b/utils/mountd/mountd.c
>index 04141d1..96d25a1 100644
>--- a/utils/mountd/mountd.c
>+++ b/utils/mountd/mountd.c
>@@ -241,7 +241,7 @@ bool_t
> mount_umntall_1_svc(struct svc_req *rqstp, void *argp, void *resp)
> {
> 	/* Reload /etc/xtab if necessary */
>-	auth_reload();
>+	auth_reload(NULL);
> 
> 	mountlist_del_all((struct sockaddr_in *) svc_getcaller(rqstp->rq_xprt));
> 	return 1;
>@@ -299,7 +299,7 @@ mount_pathconf_2_svc(struct svc_req *rqstp, dirpath *path, ppathcnf *res)
> 		p = "/";
> 
> 	/* Reload /etc/xtab if necessary */
>-	auth_reload();
>+	auth_reload(NULL);
> 
> 	/* Resolve symlinks */
> 	if (realpath(p, rpath) != NULL) {
>@@ -373,7 +373,7 @@ get_rootfh(struct svc_req *rqstp, dirpath *path, mountstat3 *error, int v3)
> 		p = "/";
> 
> 	/* Reload /var/lib/nfs/etab if necessary */
>-	auth_reload();
>+	auth_reload(NULL);
> 
> 	/* Resolve symlinks */
> 	if (realpath(p, rpath) != NULL) {
>@@ -465,18 +465,20 @@ static exports
> get_exportlist(void)
> {
> 	static exports		elist = NULL;
>-	static time_t		etime = 0;
>-	time_t			atime;
>+	static struct timespec	etime;
>+	struct timespec		atime;
> 	struct exportnode	*e, *ne;
> 	struct groupnode	*g, *ng, *c, **cp;
> 	nfs_export		*exp;
> 	int			i;
> 
>-	atime = auth_reload();
>-	if (elist && atime == etime)
>+	auth_reload(&atime);
>+	if (elist && atime.tv_sec == etime.tv_sec &&
>+	    atime.tv_nsec == etime.tv_nsec)
> 		return elist;
> 
>-	etime = atime;
>+	etime.tv_sec = atime.tv_sec;
>+	etime.tv_nsec = atime.tv_nsec;
> 
> 	for (e = elist; e != NULL; e = ne) {
> 		ne = e->ex_next;
>diff --git a/utils/mountd/mountd.h b/utils/mountd/mountd.h
>index b539278..58694d9 100644
>--- a/utils/mountd/mountd.h
>+++ b/utils/mountd/mountd.h
>@@ -40,7 +40,7 @@ bool_t		mount_mnt_3_svc(struct svc_req *, dirpath *, mountres3 *);
> 
> void		mount_dispatch(struct svc_req *, SVCXPRT *);
> void		auth_init(char *export_file);
>-time_t		auth_reload(void);
>+void 		auth_reload(struct timespec *ts);
> nfs_export *	auth_authenticate(char *what, struct sockaddr_in *sin,
> 					char *path);
> void		auth_export(nfs_export *exp);

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Attachments on bug 236823: 153430 | 153433 | 153538 | 154024