diff options
Diffstat (limited to 'include/linux/xattr.h')
| -rw-r--r-- | include/linux/xattr.h | 97 |
1 files changed, 48 insertions, 49 deletions
diff --git a/include/linux/xattr.h b/include/linux/xattr.h index e5d122031542..fdbafc6841cf 100644 --- a/include/linux/xattr.h +++ b/include/linux/xattr.h @@ -10,56 +10,11 @@ #ifndef _LINUX_XATTR_H #define _LINUX_XATTR_H -#define XATTR_CREATE 0x1 /* set value, fail if attr already exists */ -#define XATTR_REPLACE 0x2 /* set value, fail if attr does not exist */ - -/* Namespaces */ -#define XATTR_OS2_PREFIX "os2." -#define XATTR_OS2_PREFIX_LEN (sizeof (XATTR_OS2_PREFIX) - 1) - -#define XATTR_SECURITY_PREFIX "security." -#define XATTR_SECURITY_PREFIX_LEN (sizeof (XATTR_SECURITY_PREFIX) - 1) - -#define XATTR_SYSTEM_PREFIX "system." -#define XATTR_SYSTEM_PREFIX_LEN (sizeof (XATTR_SYSTEM_PREFIX) - 1) - -#define XATTR_TRUSTED_PREFIX "trusted." -#define XATTR_TRUSTED_PREFIX_LEN (sizeof (XATTR_TRUSTED_PREFIX) - 1) - -#define XATTR_USER_PREFIX "user." -#define XATTR_USER_PREFIX_LEN (sizeof (XATTR_USER_PREFIX) - 1) - -/* Security namespace */ -#define XATTR_EVM_SUFFIX "evm" -#define XATTR_NAME_EVM XATTR_SECURITY_PREFIX XATTR_EVM_SUFFIX - -#define XATTR_SELINUX_SUFFIX "selinux" -#define XATTR_NAME_SELINUX XATTR_SECURITY_PREFIX XATTR_SELINUX_SUFFIX - -#define XATTR_SMACK_SUFFIX "SMACK64" -#define XATTR_SMACK_IPIN "SMACK64IPIN" -#define XATTR_SMACK_IPOUT "SMACK64IPOUT" -#define XATTR_SMACK_EXEC "SMACK64EXEC" -#define XATTR_SMACK_TRANSMUTE "SMACK64TRANSMUTE" -#define XATTR_SMACK_MMAP "SMACK64MMAP" -#define XATTR_NAME_SMACK XATTR_SECURITY_PREFIX XATTR_SMACK_SUFFIX -#define XATTR_NAME_SMACKIPIN XATTR_SECURITY_PREFIX XATTR_SMACK_IPIN -#define XATTR_NAME_SMACKIPOUT XATTR_SECURITY_PREFIX XATTR_SMACK_IPOUT -#define XATTR_NAME_SMACKEXEC XATTR_SECURITY_PREFIX XATTR_SMACK_EXEC -#define XATTR_NAME_SMACKTRANSMUTE XATTR_SECURITY_PREFIX XATTR_SMACK_TRANSMUTE -#define XATTR_NAME_SMACKMMAP XATTR_SECURITY_PREFIX XATTR_SMACK_MMAP - -#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/slab.h> #include <linux/types.h> +#include <linux/spinlock.h> +#include <uapi/linux/xattr.h> struct inode; struct dentry; @@ -96,6 +51,50 @@ ssize_t vfs_getxattr_alloc(struct dentry *dentry, const char *name, char **xattr_value, size_t size, gfp_t flags); int vfs_xattr_cmp(struct dentry *dentry, const char *xattr_name, const char *value, size_t size, gfp_t flags); -#endif /* __KERNEL__ */ + +struct simple_xattrs { + struct list_head head; + spinlock_t lock; +}; + +struct simple_xattr { + struct list_head list; + char *name; + size_t size; + char value[0]; +}; + +/* + * initialize the simple_xattrs structure + */ +static inline void simple_xattrs_init(struct simple_xattrs *xattrs) +{ + INIT_LIST_HEAD(&xattrs->head); + spin_lock_init(&xattrs->lock); +} + +/* + * free all the xattrs + */ +static inline void simple_xattrs_free(struct simple_xattrs *xattrs) +{ + struct simple_xattr *xattr, *node; + + list_for_each_entry_safe(xattr, node, &xattrs->head, list) { + kfree(xattr->name); + kfree(xattr); + } +} + +struct simple_xattr *simple_xattr_alloc(const void *value, size_t size); +int simple_xattr_get(struct simple_xattrs *xattrs, const char *name, + void *buffer, size_t size); +int simple_xattr_set(struct simple_xattrs *xattrs, const char *name, + const void *value, size_t size, int flags); +int simple_xattr_remove(struct simple_xattrs *xattrs, const char *name); +ssize_t simple_xattr_list(struct simple_xattrs *xattrs, char *buffer, + size_t size); +void simple_xattr_list_add(struct simple_xattrs *xattrs, + struct simple_xattr *new_xattr); #endif /* _LINUX_XATTR_H */ |