sys/kern/vfs_mount.c

80 static void	free_mntarg(struct mntarg *ma);
1055 	struct mntarg *ma = NULL;
1095 	ma = mount_argsu(ma, "fstype", uap->type, MFSNAMELEN);
1096 	ma = mount_argsu(ma, "fspath", uap->path, MNAMELEN);
1097 	ma = mount_argb(ma, flags & MNT_RDONLY, "noro");
1098 	ma = mount_argb(ma, !(flags & MNT_NOSUID), "nosuid");
1099 	ma = mount_argb(ma, !(flags & MNT_NOEXEC), "noexec");
1102 		return (vfsp->vfc_vfsops_sd->vfs_cmount(ma, uap->data, flags));
1103 	return (vfsp->vfc_vfsops->vfs_cmount(ma, uap->data, flags));
2811 mount_argb(struct mntarg *ma, int flag, const char *name)
2817 	return (mount_arg(ma, name + (flag ? 2 : 0), NULL, 0));
2824 mount_argf(struct mntarg *ma, const char *name, const char *fmt, ...)
2831 	if (ma == NULL) {
2832 		ma = malloc(sizeof *ma, M_MOUNT, M_WAITOK | M_ZERO);
2833 		SLIST_INIT(&ma->list);
2835 	if (ma->error)
2836 		return (ma);
2838 	ma->v = realloc(ma->v, sizeof *ma->v * (ma->len + 2),
2840 	ma->v[ma->len].iov_base = (void *)(uintptr_t)name;
2841 	ma->v[ma->len].iov_len = strlen(name) + 1;
2842 	ma->len++;
2851 	SLIST_INSERT_HEAD(&ma->list, maa, next);
2855 	ma->v[ma->len].iov_base = maa + 1;
2856 	ma->v[ma->len].iov_len = len;
2857 	ma->len++;
2859 	return (ma);
2866 mount_argsu(struct mntarg *ma, const char *name, const void *val, int len)
2872 		return (ma);
2873 	if (ma == NULL) {
2874 		ma = malloc(sizeof *ma, M_MOUNT, M_WAITOK | M_ZERO);
2875 		SLIST_INIT(&ma->list);
2877 	if (ma->error)
2878 		return (ma);
2880 	SLIST_INSERT_HEAD(&ma->list, maa, next);
2882 	ma->error = copyinstr(val, tbuf, len, NULL);
2883 	return (mount_arg(ma, name, tbuf, -1));
2892 mount_arg(struct mntarg *ma, const char *name, const void *val, int len)
2895 	if (ma == NULL) {
2896 		ma = malloc(sizeof *ma, M_MOUNT, M_WAITOK | M_ZERO);
2897 		SLIST_INIT(&ma->list);
2899 	if (ma->error)
2900 		return (ma);
2902 	ma->v = realloc(ma->v, sizeof *ma->v * (ma->len + 2),
2904 	ma->v[ma->len].iov_base = (void *)(uintptr_t)name;
2905 	ma->v[ma->len].iov_len = strlen(name) + 1;
2906 	ma->len++;
2908 	ma->v[ma->len].iov_base = (void *)(uintptr_t)val;
2910 		ma->v[ma->len].iov_len = strlen(val) + 1;
2912 		ma->v[ma->len].iov_len = len;
2913 	ma->len++;
2914 	return (ma);
2921 free_mntarg(struct mntarg *ma)
2925 	while (!SLIST_EMPTY(&ma->list)) {
2926 		maa = SLIST_FIRST(&ma->list);
2927 		SLIST_REMOVE_HEAD(&ma->list, next);
2930 	free(ma->v, M_MOUNT);
2931 	free(ma, M_MOUNT);
2938 kernel_mount(struct mntarg *ma, uint64_t flags)
2943 	KASSERT(ma != NULL, ("kernel_mount NULL ma"));
2944 	KASSERT(ma->error != 0 || ma->v != NULL, ("kernel_mount NULL ma->v"));
2945 	KASSERT(!(ma->len & 1), ("kernel_mount odd ma->len (%d)", ma->len));
2947 	error = ma->error;
2949 		auio.uio_iov = ma->v;
2950 		auio.uio_iovcnt = ma->len;
2954 	free_mntarg(ma);