struct xfs_inode *ip = NULL;
xfs_acl_t *default_acl = NULL;
struct xfs_name name;
- attrexists_t test_default_acl = _ACL_DEFAULT_EXISTS;
+ int (*test_default_acl)(struct inode *) = _ACL_DEFAULT_EXISTS;
int error;
/*
WARN_ON(error);
}
-STATIC int
-xfs_vn_setxattr(
- struct dentry *dentry,
- const char *name,
- const void *data,
- size_t size,
- int flags)
-{
- bhv_vnode_t *vp = vn_from_inode(dentry->d_inode);
- char *attr = (char *)name;
- attrnames_t *namesp;
- int xflags = 0;
-
- namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- attr += namesp->attr_namelen;
-
- /* Convert Linux syscall to XFS internal ATTR flags */
- if (flags & XATTR_CREATE)
- xflags |= ATTR_CREATE;
- if (flags & XATTR_REPLACE)
- xflags |= ATTR_REPLACE;
- xflags |= namesp->attr_flag;
- return namesp->attr_set(vp, attr, (void *)data, size, xflags);
-}
-
-STATIC ssize_t
-xfs_vn_getxattr(
- struct dentry *dentry,
- const char *name,
- void *data,
- size_t size)
-{
- bhv_vnode_t *vp = vn_from_inode(dentry->d_inode);
- char *attr = (char *)name;
- attrnames_t *namesp;
- int xflags = 0;
-
- namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- attr += namesp->attr_namelen;
-
- /* Convert Linux syscall to XFS internal ATTR flags */
- if (!size) {
- xflags |= ATTR_KERNOVAL;
- data = NULL;
- }
- xflags |= namesp->attr_flag;
- return namesp->attr_get(vp, attr, (void *)data, size, xflags);
-}
-
-STATIC ssize_t
-xfs_vn_listxattr(
- struct dentry *dentry,
- char *data,
- size_t size)
-{
- bhv_vnode_t *vp = vn_from_inode(dentry->d_inode);
- int error, xflags = ATTR_KERNAMELS;
- ssize_t result;
-
- if (!size)
- xflags |= ATTR_KERNOVAL;
- xflags |= capable(CAP_SYS_ADMIN) ? ATTR_KERNFULLS : ATTR_KERNORMALS;
-
- error = attr_generic_list(vp, data, size, xflags, &result);
- if (error < 0)
- return error;
- return result;
-}
-
-STATIC int
-xfs_vn_removexattr(
- struct dentry *dentry,
- const char *name)
-{
- bhv_vnode_t *vp = vn_from_inode(dentry->d_inode);
- char *attr = (char *)name;
- attrnames_t *namesp;
- int xflags = 0;
-
- namesp = attr_lookup_namespace(attr, attr_namespaces, ATTR_NAMECOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- attr += namesp->attr_namelen;
-
- xflags |= namesp->attr_flag;
- return namesp->attr_remove(vp, attr, xflags);
-}
-
STATIC long
xfs_vn_fallocate(
struct inode *inode,
.truncate = xfs_vn_truncate,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
- .setxattr = xfs_vn_setxattr,
- .getxattr = xfs_vn_getxattr,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
.listxattr = xfs_vn_listxattr,
- .removexattr = xfs_vn_removexattr,
.fallocate = xfs_vn_fallocate,
};
.permission = xfs_vn_permission,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
- .setxattr = xfs_vn_setxattr,
- .getxattr = xfs_vn_getxattr,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
.listxattr = xfs_vn_listxattr,
- .removexattr = xfs_vn_removexattr,
};
const struct inode_operations xfs_dir_ci_inode_operations = {
.permission = xfs_vn_permission,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
- .setxattr = xfs_vn_setxattr,
- .getxattr = xfs_vn_getxattr,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
.listxattr = xfs_vn_listxattr,
- .removexattr = xfs_vn_removexattr,
};
const struct inode_operations xfs_symlink_inode_operations = {
.permission = xfs_vn_permission,
.getattr = xfs_vn_getattr,
.setattr = xfs_vn_setattr,
- .setxattr = xfs_vn_setxattr,
- .getxattr = xfs_vn_getxattr,
+ .setxattr = generic_setxattr,
+ .getxattr = generic_getxattr,
+ .removexattr = generic_removexattr,
.listxattr = xfs_vn_listxattr,
- .removexattr = xfs_vn_removexattr,
};
* Provide the external interfaces to manage attribute lists.
*/
-#define ATTR_SYSCOUNT 2
-static struct attrnames posix_acl_access;
-static struct attrnames posix_acl_default;
-static struct attrnames *attr_system_names[ATTR_SYSCOUNT];
-
/*========================================================================
* Function prototypes for the kernel.
*========================================================================*/
(void *)a13, (void *)a14, (void *)a15);
}
#endif /* XFS_ATTR_TRACE */
-
-
-/*========================================================================
- * System (pseudo) namespace attribute interface routines.
- *========================================================================*/
-
-STATIC int
-posix_acl_access_set(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- return xfs_acl_vset(vp, data, size, _ACL_TYPE_ACCESS);
-}
-
-STATIC int
-posix_acl_access_remove(
- bhv_vnode_t *vp, char *name, int xflags)
-{
- return xfs_acl_vremove(vp, _ACL_TYPE_ACCESS);
-}
-
-STATIC int
-posix_acl_access_get(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- return xfs_acl_vget(vp, data, size, _ACL_TYPE_ACCESS);
-}
-
-STATIC int
-posix_acl_access_exists(
- bhv_vnode_t *vp)
-{
- return xfs_acl_vhasacl_access(vp);
-}
-
-STATIC int
-posix_acl_default_set(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- return xfs_acl_vset(vp, data, size, _ACL_TYPE_DEFAULT);
-}
-
-STATIC int
-posix_acl_default_get(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- return xfs_acl_vget(vp, data, size, _ACL_TYPE_DEFAULT);
-}
-
-STATIC int
-posix_acl_default_remove(
- bhv_vnode_t *vp, char *name, int xflags)
-{
- return xfs_acl_vremove(vp, _ACL_TYPE_DEFAULT);
-}
-
-STATIC int
-posix_acl_default_exists(
- bhv_vnode_t *vp)
-{
- return xfs_acl_vhasacl_default(vp);
-}
-
-static struct attrnames posix_acl_access = {
- .attr_name = "posix_acl_access",
- .attr_namelen = sizeof("posix_acl_access") - 1,
- .attr_get = posix_acl_access_get,
- .attr_set = posix_acl_access_set,
- .attr_remove = posix_acl_access_remove,
- .attr_exists = posix_acl_access_exists,
-};
-
-static struct attrnames posix_acl_default = {
- .attr_name = "posix_acl_default",
- .attr_namelen = sizeof("posix_acl_default") - 1,
- .attr_get = posix_acl_default_get,
- .attr_set = posix_acl_default_set,
- .attr_remove = posix_acl_default_remove,
- .attr_exists = posix_acl_default_exists,
-};
-
-static struct attrnames *attr_system_names[] =
- { &posix_acl_access, &posix_acl_default };
-
-
-/*========================================================================
- * Namespace-prefix-style attribute name interface routines.
- *========================================================================*/
-
-STATIC int
-attr_generic_set(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- return -xfs_attr_set(xfs_vtoi(vp), name, data, size, xflags);
-}
-
-STATIC int
-attr_generic_get(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- int error, asize = size;
-
- error = xfs_attr_get(xfs_vtoi(vp), name, data, &asize, xflags);
- if (!error)
- return asize;
- return -error;
-}
-
-STATIC int
-attr_generic_remove(
- bhv_vnode_t *vp, char *name, int xflags)
-{
- return -xfs_attr_remove(xfs_vtoi(vp), name, xflags);
-}
-
-STATIC int
-attr_generic_listadd(
- attrnames_t *prefix,
- attrnames_t *namesp,
- void *data,
- size_t size,
- ssize_t *result)
-{
- char *p = data + *result;
-
- *result += prefix->attr_namelen;
- *result += namesp->attr_namelen + 1;
- if (!size)
- return 0;
- if (*result > size)
- return -ERANGE;
- strcpy(p, prefix->attr_name);
- p += prefix->attr_namelen;
- strcpy(p, namesp->attr_name);
- p += namesp->attr_namelen + 1;
- return 0;
-}
-
-STATIC int
-attr_system_list(
- bhv_vnode_t *vp,
- void *data,
- size_t size,
- ssize_t *result)
-{
- attrnames_t *namesp;
- int i, error = 0;
-
- for (i = 0; i < ATTR_SYSCOUNT; i++) {
- namesp = attr_system_names[i];
- if (!namesp->attr_exists || !namesp->attr_exists(vp))
- continue;
- error = attr_generic_listadd(&attr_system, namesp,
- data, size, result);
- if (error)
- break;
- }
- return error;
-}
-
-int
-attr_generic_list(
- bhv_vnode_t *vp, void *data, size_t size, int xflags, ssize_t *result)
-{
- attrlist_cursor_kern_t cursor = { 0 };
- int error;
-
- error = xfs_attr_list(xfs_vtoi(vp), data, size, xflags, &cursor);
- if (error > 0)
- return -error;
- *result = -error;
- return attr_system_list(vp, data, size, result);
-}
-
-attrnames_t *
-attr_lookup_namespace(
- char *name,
- struct attrnames **names,
- int nnames)
-{
- int i;
-
- for (i = 0; i < nnames; i++)
- if (!strncmp(name, names[i]->attr_name, names[i]->attr_namelen))
- return names[i];
- return NULL;
-}
-
-STATIC int
-attr_system_set(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- attrnames_t *namesp;
- int error;
-
- if (xflags & ATTR_CREATE)
- return -EINVAL;
-
- namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- error = namesp->attr_set(vp, name, data, size, xflags);
- if (!error)
- error = vn_revalidate(vp);
- return error;
-}
-
-STATIC int
-attr_system_get(
- bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
-{
- attrnames_t *namesp;
-
- namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- return namesp->attr_get(vp, name, data, size, xflags);
-}
-
-STATIC int
-attr_system_remove(
- bhv_vnode_t *vp, char *name, int xflags)
-{
- attrnames_t *namesp;
-
- namesp = attr_lookup_namespace(name, attr_system_names, ATTR_SYSCOUNT);
- if (!namesp)
- return -EOPNOTSUPP;
- return namesp->attr_remove(vp, name, xflags);
-}
-
-struct attrnames attr_system = {
- .attr_name = "system.",
- .attr_namelen = sizeof("system.") - 1,
- .attr_flag = ATTR_SYSTEM,
- .attr_get = attr_system_get,
- .attr_set = attr_system_set,
- .attr_remove = attr_system_remove,
-};
-
-struct attrnames attr_trusted = {
- .attr_name = "trusted.",
- .attr_namelen = sizeof("trusted.") - 1,
- .attr_flag = ATTR_ROOT,
- .attr_get = attr_generic_get,
- .attr_set = attr_generic_set,
- .attr_remove = attr_generic_remove,
-};
-
-struct attrnames attr_secure = {
- .attr_name = "security.",
- .attr_namelen = sizeof("security.") - 1,
- .attr_flag = ATTR_SECURE,
- .attr_get = attr_generic_get,
- .attr_set = attr_generic_set,
- .attr_remove = attr_generic_remove,
-};
-
-struct attrnames attr_user = {
- .attr_name = "user.",
- .attr_namelen = sizeof("user.") - 1,
- .attr_get = attr_generic_get,
- .attr_set = attr_generic_set,
- .attr_remove = attr_generic_remove,
-};
-
-struct attrnames *attr_namespaces[] =
- { &attr_system, &attr_trusted, &attr_secure, &attr_user };
struct cred;
struct xfs_attr_list_context;
-typedef int (*attrset_t)(bhv_vnode_t *, char *, void *, size_t, int);
-typedef int (*attrget_t)(bhv_vnode_t *, char *, void *, size_t, int);
-typedef int (*attrremove_t)(bhv_vnode_t *, char *, int);
-typedef int (*attrexists_t)(bhv_vnode_t *);
-
typedef struct attrnames {
char * attr_name;
unsigned int attr_namelen;
- unsigned int attr_flag;
- attrget_t attr_get;
- attrset_t attr_set;
- attrremove_t attr_remove;
- attrexists_t attr_exists;
} attrnames_t;
-#define ATTR_NAMECOUNT 4
extern struct attrnames attr_user;
extern struct attrnames attr_secure;
-extern struct attrnames attr_system;
extern struct attrnames attr_trusted;
-extern struct attrnames *attr_namespaces[ATTR_NAMECOUNT];
-
-extern attrnames_t *attr_lookup_namespace(char *, attrnames_t **, int);
-extern int attr_generic_list(bhv_vnode_t *, void *, size_t, int, ssize_t *);
#define ATTR_DONTFOLLOW 0x0001 /* -- unused, from IRIX -- */
#define ATTR_ROOT 0x0002 /* use attrs in root (trusted) namespace */
#define ATTR_SECURE 0x0008 /* use attrs in security namespace */
#define ATTR_CREATE 0x0010 /* pure create: fail if attr already exists */
#define ATTR_REPLACE 0x0020 /* pure set: fail if attr does not exist */
-#define ATTR_SYSTEM 0x0100 /* use attrs in system (pseudo) namespace */
#define ATTR_KERNACCESS 0x0400 /* [kernel] iaccess, inode held io-locked */
#define ATTR_KERNOTIME 0x1000 /* [kernel] don't update inode timestamps */
projects / linux-2.6 / commitdiff