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This pull request contains updates for both UBI and UBIFS:

Browse source 
- New config option CONFIG_UBIFS_FS_SECURITY
 - Minor improvements
 - Random fixes
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Merge tag 'upstream-4.12-rc1' of git://git.infradead.org/linux-ubifs

Pull UBI/UBIFS updates from Richard Weinberger:

 - new config option CONFIG_UBIFS_FS_SECURITY

 - minor improvements

 - random fixes

* tag 'upstream-4.12-rc1' of git://git.infradead.org/linux-ubifs:
  ubi: Add debugfs file for tracking PEB state
  ubifs: Fix a typo in comment of ioctl2ubifs & ubifs2ioctl
  ubifs: Remove unnecessary assignment
  ubifs: Fix cut and paste error on sb type comparisons
  ubi: fastmap: Fix slab corruption
  ubifs: Add CONFIG_UBIFS_FS_SECURITY to disable/enable security labels
  ubi: Make mtd parameter readable
  ubi: Fix section mismatch
This commit is contained in:
Linus Torvalds 2017-05-13 10:23:12 -07:00
commit b53c4d5eb7
9 changed files with 195 additions and 18 deletions
Download patch file Download diff file Expand all files Collapse all files

13
fs/ubifs/Kconfig
View file

@ -61,3 +61,16 @@ config UBIFS_FS_ENCRYPTION
feature is similar to ecryptfs, but it is more memory
efficient since it avoids caching the encrypted and
decrypted pages in the page cache.
config UBIFS_FS_SECURITY
bool "UBIFS Security Labels"
depends on UBIFS_FS
default y
help
Security labels provide an access control facility to support Linux
Security Models (LSMs) accepted by AppArmor, SELinux, Smack and TOMOYO
Linux. This option enables an extended attribute handler for file
security labels in the ubifs filesystem, so that it requires enabling
the extended attribute support in advance.
If you are not using a security module, say N.

4
fs/ubifs/debug.c
View file

@ -2391,8 +2391,8 @@ int dbg_check_nondata_nodes_order(struct ubifs_info *c, struct list_head *head)
ubifs_dump_node(c, sa->node);
return -EINVAL;
}
if (sa->type != UBIFS_INO_NODE && sa->type != UBIFS_DENT_NODE &&
sa->type != UBIFS_XENT_NODE) {
if (sb->type != UBIFS_INO_NODE && sb->type != UBIFS_DENT_NODE &&
sb->type != UBIFS_XENT_NODE) {
ubifs_err(c, "bad node type %d", sb->type);
ubifs_dump_node(c, sb->node);
return -EINVAL;

6
fs/ubifs/ioctl.c
View file

@ -53,7 +53,7 @@ void ubifs_set_inode_flags(struct inode *inode)
* ioctl2ubifs - convert ioctl inode flags to UBIFS inode flags.
* @ioctl_flags: flags to convert
*
* This function convert ioctl flags (@FS_COMPR_FL, etc) to UBIFS inode flags
* This function converts ioctl flags (@FS_COMPR_FL, etc) to UBIFS inode flags
* (@UBIFS_COMPR_FL, etc).
*/
static int ioctl2ubifs(int ioctl_flags)
@ -78,8 +78,8 @@ static int ioctl2ubifs(int ioctl_flags)
* ubifs2ioctl - convert UBIFS inode flags to ioctl inode flags.
* @ubifs_flags: flags to convert
*
* This function convert UBIFS (@UBIFS_COMPR_FL, etc) to ioctl flags
* (@FS_COMPR_FL, etc).
* This function converts UBIFS inode flags (@UBIFS_COMPR_FL, etc) to ioctl
* flags (@FS_COMPR_FL, etc).
*/
static int ubifs2ioctl(int ubifs_flags)
{

1
fs/ubifs/recovery.c
View file

@ -442,7 +442,6 @@ static void clean_buf(const struct ubifs_info *c, void **buf, int lnum,
{
int empty_offs, pad_len;
lnum = lnum;
dbg_rcvry("cleaning corruption at %d:%d", lnum, *offs);
ubifs_assert(!(*offs & 7));

14
fs/ubifs/ubifs.h
View file

@ -1753,13 +1753,23 @@ int ubifs_check_dir_empty(struct inode *dir);
/* xattr.c */
extern const struct xattr_handler *ubifs_xattr_handlers[];
ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size);
int ubifs_init_security(struct inode *dentry, struct inode *inode,
const struct qstr *qstr);
int ubifs_xattr_set(struct inode *host, const char *name, const void *value,
size_t size, int flags);
ssize_t ubifs_xattr_get(struct inode *host, const char *name, void *buf,
size_t size);
#ifdef CONFIG_UBIFS_FS_SECURITY
extern int ubifs_init_security(struct inode *dentry, struct inode *inode,
const struct qstr *qstr);
#else
static inline int ubifs_init_security(struct inode *dentry,
struct inode *inode, const struct qstr *qstr)
{
return 0;
}
#endif
/* super.c */
struct inode *ubifs_iget(struct super_block *sb, unsigned long inum);

6
fs/ubifs/xattr.c
View file

@ -559,6 +559,7 @@ out_free:
return err;
}
#ifdef CONFIG_UBIFS_FS_SECURITY
static int init_xattrs(struct inode *inode, const struct xattr *xattr_array,
void *fs_info)
{
@ -599,6 +600,7 @@ int ubifs_init_security(struct inode *dentry, struct inode *inode,
}
return err;
}
#endif
static int xattr_get(const struct xattr_handler *handler,
struct dentry *dentry, struct inode *inode,
@ -639,15 +641,19 @@ static const struct xattr_handler ubifs_trusted_xattr_handler = {
.set = xattr_set,
};
#ifdef CONFIG_UBIFS_FS_SECURITY
static const struct xattr_handler ubifs_security_xattr_handler = {
.prefix = XATTR_SECURITY_PREFIX,
.get = xattr_get,
.set = xattr_set,
};
#endif
const struct xattr_handler *ubifs_xattr_handlers[] = {
&ubifs_user_xattr_handler,
&ubifs_trusted_xattr_handler,
#ifdef CONFIG_UBIFS_FS_SECURITY
&ubifs_security_xattr_handler,
#endif
NULL
};