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Commit b29f7751 authored by Eric W. Biederman's avatar Eric W. Biederman
Browse files

userns: Convert ntfs to use kuid and kgid where appropriate 



Cc: Anton Altaparmakov <anton@tuxera.com>
Acked-by: default avatarSerge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
parent 305d3d0d

fs/ntfs/inode.c

+4 −3
Original line number Diff line number Diff line
@@ -2124,7 +2124,8 @@ int ntfs_read_inode_mount(struct inode *vi) 
			 * ntfs_read_inode() will have set up the default ones.

			 */

			/* Set uid and gid to root. */

			vi->i_uid = vi->i_gid = 0;

			vi->i_uid = GLOBAL_ROOT_UID;

			vi->i_gid = GLOBAL_ROOT_GID;

			/* Regular file. No access for anyone. */

			vi->i_mode = S_IFREG;

			/* No VFS initiated operations allowed for $MFT. */
@@ -2312,8 +2313,8 @@ int ntfs_show_options(struct seq_file *sf, struct dentry *root) 
	ntfs_volume *vol = NTFS_SB(root->d_sb);

	int i;



	seq_printf(sf, ",uid=%i", vol->uid);

	seq_printf(sf, ",gid=%i", vol->gid);

	seq_printf(sf, ",uid=%i", from_kuid_munged(&init_user_ns, vol->uid));

	seq_printf(sf, ",gid=%i", from_kgid_munged(&init_user_ns, vol->gid));

	if (vol->fmask == vol->dmask)

		seq_printf(sf, ",umask=0%o", vol->fmask);

	else {

fs/ntfs/super.c

+32 −7
Original line number Diff line number Diff line
@@ -102,8 +102,8 @@ static bool parse_options(ntfs_volume *vol, char *opt) 
	char *p, *v, *ov;

	static char *utf8 = "utf8";

	int errors = 0, sloppy = 0;

	uid_t uid = (uid_t)-1;

	gid_t gid = (gid_t)-1;

	kuid_t uid = INVALID_UID;

	kgid_t gid = INVALID_GID;

	umode_t fmask = (umode_t)-1, dmask = (umode_t)-1;

	int mft_zone_multiplier = -1, on_errors = -1;

	int show_sys_files = -1, case_sensitive = -1, disable_sparse = -1;
@@ -128,6 +128,30 @@ static bool parse_options(ntfs_volume *vol, char *opt) 
		if (*v)							\

			goto needs_val;					\

	}

#define NTFS_GETOPT_UID(option, variable)				\

	if (!strcmp(p, option)) {					\

		uid_t uid_value;					\

		if (!v || !*v)						\

			goto needs_arg;					\

		uid_value = simple_strtoul(ov = v, &v, 0);		\

		if (*v)							\

			goto needs_val;					\

		variable = make_kuid(current_user_ns(), uid_value);	\

		if (!uid_valid(variable))				\

			goto needs_val;					\

	}

#define NTFS_GETOPT_GID(option, variable)				\

	if (!strcmp(p, option)) {					\

		gid_t gid_value;					\

		if (!v || !*v)						\

			goto needs_arg;					\

		gid_value = simple_strtoul(ov = v, &v, 0);		\

		if (*v)							\

			goto needs_val;					\

		variable = make_kgid(current_user_ns(), gid_value);	\

		if (!gid_valid(variable))				\

			goto needs_val;					\

	}

#define NTFS_GETOPT_OCTAL(option, variable)				\

	if (!strcmp(p, option)) {					\

		if (!v || !*v)						\
@@ -165,8 +189,8 @@ static bool parse_options(ntfs_volume *vol, char *opt) 
	while ((p = strsep(&opt, ","))) {

		if ((v = strchr(p, '=')))

			*v++ = 0;

		NTFS_GETOPT("uid", uid)

		else NTFS_GETOPT("gid", gid)

		NTFS_GETOPT_UID("uid", uid)

		else NTFS_GETOPT_GID("gid", gid)

		else NTFS_GETOPT_OCTAL("umask", fmask = dmask)

		else NTFS_GETOPT_OCTAL("fmask", fmask)

		else NTFS_GETOPT_OCTAL("dmask", dmask)
@@ -283,9 +307,9 @@ static bool parse_options(ntfs_volume *vol, char *opt) 
		vol->on_errors = on_errors;

	if (!vol->on_errors || vol->on_errors == ON_ERRORS_RECOVER)

		vol->on_errors |= ON_ERRORS_CONTINUE;

	if (uid != (uid_t)-1)

	if (uid_valid(uid))

		vol->uid = uid;

	if (gid != (gid_t)-1)

	if (gid_valid(gid))

		vol->gid = gid;

	if (fmask != (umode_t)-1)

		vol->fmask = fmask;
@@ -1023,7 +1047,8 @@ static bool load_and_init_mft_mirror(ntfs_volume *vol) 
	 * ntfs_read_inode() will have set up the default ones.

	 */

	/* Set uid and gid to root. */

	tmp_ino->i_uid = tmp_ino->i_gid = 0;

	tmp_ino->i_uid = GLOBAL_ROOT_UID;

	tmp_ino->i_gid = GLOBAL_ROOT_GID;

	/* Regular file.  No access for anyone. */

	tmp_ino->i_mode = S_IFREG;

	/* No VFS initiated operations allowed for $MFTMirr. */

fs/ntfs/volume.h

+3 −2
Original line number Diff line number Diff line
@@ -25,6 +25,7 @@ 
#define _LINUX_NTFS_VOLUME_H



#include <linux/rwsem.h>

#include <linux/uidgid.h>



#include "types.h"

#include "layout.h"
@@ -46,8 +47,8 @@ typedef struct { 
					   sized blocks on the device. */

	/* Configuration provided by user at mount time. */

	unsigned long flags;		/* Miscellaneous flags, see below. */

	uid_t uid;			/* uid that files will be mounted as. */

	gid_t gid;			/* gid that files will be mounted as. */

	kuid_t uid;			/* uid that files will be mounted as. */

	kgid_t gid;			/* gid that files will be mounted as. */

	umode_t fmask;			/* The mask for file permissions. */

	umode_t dmask;			/* The mask for directory

					   permissions. */

init/Kconfig

+0 −1
Original line number Diff line number Diff line
@@ -949,7 +949,6 @@ config UIDGID_CONVERTED 
	depends on NCP_FS = n

	depends on NFSD = n

	depends on NFS_FS = n

	depends on NTFS_FS = n

	depends on OCFS2_FS = n

	depends on OMFS_FS = n

	depends on QNX4FS_FS = n