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| author |   Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-08-18 18:07:44 -0400 |
|---|---|---|
| committer | Mimi Zohar <zohar@linux.vnet.ibm.com> | 2011-09-14 15:24:51 -0400 |
| commit | bf6d0f5dcda17df3cc5577e203d0f8ea1c2ad6aa (patch) | |
| tree | c6c5f39d43fe0d27bc1d3aedbd2f9b3ba2f8f537 /include/linux | |
| parent | evm: limit verifying current security.evm integrity (diff) | |
| download | linux-dev-bf6d0f5dcda17df3cc5577e203d0f8ea1c2ad6aa.tar.xz linux-dev-bf6d0f5dcda17df3cc5577e203d0f8ea1c2ad6aa.zip | |
evm: posix acls modify i_mode
The posix xattr acls are 'system' prefixed, which normally would not
affect security.evm. An interesting side affect of writing posix xattr
acls is their modifying of the i_mode, which is included in security.evm.
This patch updates security.evm when posix xattr acls are written.
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/evm.h | 8 | ||||
| -rw-r--r-- | include/linux/xattr.h | 5 |
2 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/evm.h b/include/linux/evm.h index ea603c9e775d..9fc13a760928 100644 --- a/include/linux/evm.h +++ b/include/linux/evm.h @@ -33,6 +33,14 @@ extern void evm_inode_post_removexattr(struct dentry *dentry, extern int evm_inode_init_security(struct inode *inode, const struct xattr *xattr_array, struct xattr *evm); +#ifdef CONFIG_FS_POSIX_ACL +extern int posix_xattr_acl(const char *xattrname); +#else +static inline int posix_xattr_acl(const char *xattrname) +{ + return 0; +} +#endif #else #ifdef CONFIG_INTEGRITY static inline enum integrity_status evm_verifyxattr(struct dentry *dentry, diff --git a/include/linux/xattr.h b/include/linux/xattr.h index b20cb965c322..e5d122031542 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -52,6 +52,11 @@ #define XATTR_CAPS_SUFFIX "capability" #define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX +#define XATTR_POSIX_ACL_ACCESS "posix_acl_access" +#define XATTR_NAME_POSIX_ACL_ACCESS XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_ACCESS +#define XATTR_POSIX_ACL_DEFAULT "posix_acl_default" +#define XATTR_NAME_POSIX_ACL_DEFAULT XATTR_SYSTEM_PREFIX XATTR_POSIX_ACL_DEFAULT + #ifdef __KERNEL__ #include <linux/types.h> |