sys/kern/vfs_mount.c

142 vfs_freeopt(struct vfsoptlist *opts, struct vfsopt *opt)
145 	TAILQ_REMOVE(opts, opt, link);
146 	free(opt->name, M_MOUNT);
147 	if (opt->value != NULL)
148 		free(opt->value, M_MOUNT);
149 	free(opt, M_MOUNT);
156 	struct vfsopt *opt;
159 		opt = TAILQ_FIRST(opts);
160 		vfs_freeopt(opts, opt);
168 	struct vfsopt *opt, *temp;
172 	TAILQ_FOREACH_SAFE(opt, opts, link, temp)  {
173 		if (strcmp(opt->name, name) == 0)
174 			vfs_freeopt(opts, opt);
179 vfs_isopt_ro(const char *opt)
182 	if (strcmp(opt, "ro") == 0 || strcmp(opt, "rdonly") == 0 ||
183 	    strcmp(opt, "norw") == 0)
189 vfs_isopt_rw(const char *opt)
192 	if (strcmp(opt, "rw") == 0 || strcmp(opt, "noro") == 0)
205 	/* "opt" vs. "opt" or "noopt" vs. "noopt" */
208 	/* "noopt" vs. "opt" */
211 	/* "opt" vs. "noopt" */
218 		/* "foo.noopt" vs. "foo.opt" */
221 		/* "foo.opt" vs. "foo.noopt" */
240 	struct vfsopt *opt, *opt2, *tmp;
242 	TAILQ_FOREACH_REVERSE(opt, opts, vfsoptlist, link) {
243 		opt2 = TAILQ_PREV(opt, vfsoptlist, link);
245 			if (vfs_equalopts(opt->name, opt2->name)) {
263 	struct vfsopt *opt;
287 		opt = malloc(sizeof(struct vfsopt), M_MOUNT, M_WAITOK);
288 		opt->name = malloc(namelen, M_MOUNT, M_WAITOK);
289 		opt->value = NULL;
290 		opt->len = 0;
291 		opt->pos = i / 2;
292 		opt->seen = 0;
298 		TAILQ_INSERT_TAIL(opts, opt, link);
301 			bcopy(auio->uio_iov[i].iov_base, opt->name, namelen);
303 			error = copyin(auio->uio_iov[i].iov_base, opt->name,
309 		if (namelen == 0 || opt->name[namelen - 1] != '\0') {
314 			opt->len = optlen;
315 			opt->value = malloc(optlen, M_MOUNT, M_WAITOK);
317 				bcopy(auio->uio_iov[i + 1].iov_base, opt->value,
321 				    opt->value, optlen);
346 	struct vfsopt *opt, *new;
348 	TAILQ_FOREACH(opt, oldopts, link) {
350 		new->name = strdup(opt->name, M_MOUNT);
351 		if (opt->len != 0) {
352 			new->value = malloc(opt->len, M_MOUNT, M_WAITOK);
353 			bcopy(opt->value, new->value, opt->len);
356 		new->len = opt->len;
357 		new->seen = opt->seen;
537 	struct vfsopt *opt, *tmp_opt;
580 	TAILQ_FOREACH_SAFE(opt, optlist, link, tmp_opt) {
581 		if (strcmp(opt->name, "update") == 0) {
583 			vfs_freeopt(optlist, opt);
585 		else if (strcmp(opt->name, "async") == 0)
587 		else if (strcmp(opt->name, "force") == 0) {
589 			vfs_freeopt(optlist, opt);
591 		else if (strcmp(opt->name, "reload") == 0) {
593 			vfs_freeopt(optlist, opt);
595 		else if (strcmp(opt->name, "multilabel") == 0)
597 		else if (strcmp(opt->name, "noasync") == 0)
599 		else if (strcmp(opt->name, "noatime") == 0)
601 		else if (strcmp(opt->name, "atime") == 0) {
602 			free(opt->name, M_MOUNT);
603 			opt->name = strdup("nonoatime", M_MOUNT);
605 		else if (strcmp(opt->name, "noclusterr") == 0)
607 		else if (strcmp(opt->name, "clusterr") == 0) {
608 			free(opt->name, M_MOUNT);
609 			opt->name = strdup("nonoclusterr", M_MOUNT);
611 		else if (strcmp(opt->name, "noclusterw") == 0)
613 		else if (strcmp(opt->name, "clusterw") == 0) {
614 			free(opt->name, M_MOUNT);
615 			opt->name = strdup("nonoclusterw", M_MOUNT);
617 		else if (strcmp(opt->name, "noexec") == 0)
619 		else if (strcmp(opt->name, "exec") == 0) {
620 			free(opt->name, M_MOUNT);
621 			opt->name = strdup("nonoexec", M_MOUNT);
623 		else if (strcmp(opt->name, "nosuid") == 0)
625 		else if (strcmp(opt->name, "suid") == 0) {
626 			free(opt->name, M_MOUNT);
627 			opt->name = strdup("nonosuid", M_MOUNT);
629 		else if (strcmp(opt->name, "nosymfollow") == 0)
631 		else if (strcmp(opt->name, "symfollow") == 0) {
632 			free(opt->name, M_MOUNT);
633 			opt->name = strdup("nonosymfollow", M_MOUNT);
635 		else if (strcmp(opt->name, "noro") == 0)
637 		else if (strcmp(opt->name, "rw") == 0)
639 		else if (strcmp(opt->name, "ro") == 0)
641 		else if (strcmp(opt->name, "rdonly") == 0) {
642 			free(opt->name, M_MOUNT);
643 			opt->name = strdup("ro", M_MOUNT);
646 		else if (strcmp(opt->name, "suiddir") == 0)
648 		else if (strcmp(opt->name, "sync") == 0)
650 		else if (strcmp(opt->name, "union") == 0)
652 		else if (strcmp(opt->name, "automounted") == 0) {
654 			vfs_freeopt(optlist, opt);
1410 	struct vfsopt *opt;
1415 	TAILQ_FOREACH(opt, opts, link) {
1416 		p = opt->name;
1445 		TAILQ_FOREACH(opt, opts, link) {
1446 			if (strcmp(opt->name, "errmsg") == 0) {
1447 				strncpy((char *)opt->value, errmsg, opt->len);
1451 		if (opt == NULL)
1472 	struct vfsopt *opt;
1476 	TAILQ_FOREACH(opt, opts, link) {
1477 		if (strcmp(name, opt->name) == 0) {
1478 			opt->seen = 1;
1480 				*len = opt->len;
1482 				*buf = opt->value;
1492 	struct vfsopt *opt;
1497 	TAILQ_FOREACH(opt, opts, link) {
1498 		if (strcmp(name, opt->name) == 0) {
1499 			opt->seen = 1;
1500 			return (opt->pos);
1551 	struct vfsopt *opt;
1554 	TAILQ_FOREACH(opt, opts, link) {
1555 		if (strcmp(name, opt->name) != 0)
1557 		opt->seen = 1;
1558 		if (opt->len == 0 ||
1559 		    ((char *)opt->value)[opt->len - 1] != '\0') {
1563 		return (opt->value);
1573 	struct vfsopt *opt;
1575 	TAILQ_FOREACH(opt, opts, link) {
1576 		if (strcmp(name, opt->name) == 0) {
1577 			opt->seen = 1;
1592 	struct vfsopt *opt;
1597 	TAILQ_FOREACH(opt, opts, link) {
1598 		if (strcmp(name, opt->name) != 0)
1600 		opt->seen = 1;
1601 		if (opt->len == 0 || opt->value == NULL)
1603 		if (((char *)opt->value)[opt->len - 1] != '\0')
1606 		ret = vsscanf(opt->value, fmt, ap);
1616 	struct vfsopt *opt;
1618 	TAILQ_FOREACH(opt, opts, link) {
1619 		if (strcmp(name, opt->name) != 0)
1621 		opt->seen = 1;
1622 		if (opt->value == NULL)
1623 			opt->len = len;
1625 			if (opt->len != len)
1627 			bcopy(value, opt->value, len);
1637 	struct vfsopt *opt;
1639 	TAILQ_FOREACH(opt, opts, link) {
1640 		if (strcmp(name, opt->name) != 0)
1642 		opt->seen = 1;
1643 		if (opt->value == NULL)
1644 			opt->len = len;
1646 			if (opt->len < len)
1648 			opt->len = len;
1649 			bcopy(value, opt->value, len);
1659 	struct vfsopt *opt;
1661 	TAILQ_FOREACH(opt, opts, link) {
1662 		if (strcmp(name, opt->name) != 0)
1664 		opt->seen = 1;
1665 		if (opt->value == NULL)
1666 			opt->len = strlen(value) + 1;
1667 		else if (strlcpy(opt->value, value, opt->len) >= opt->len)
1689 	struct vfsopt *opt;
1693 	TAILQ_FOREACH(opt, opts, link) {
1694 		if (strcmp(name, opt->name) == 0) {
1695 			opt->seen = 1;
1696 			if (len != opt->len)
1698 			bcopy(opt->value, dest, opt->len);