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Diffstat (limited to 'fs/9p/acl.c')
-rw-r--r--fs/9p/acl.c102
1 files changed, 40 insertions, 62 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 535ab6eccb1..8482f2d1160 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -23,6 +23,7 @@
#include "acl.h"
#include "v9fs.h"
#include "v9fs_vfs.h"
+#include "fid.h"
static struct posix_acl *__v9fs_get_acl(struct p9_fid *fid, char *name)
{
@@ -37,7 +38,7 @@ static struct posix_acl *__v9fs_get_acl(struct p9_fid *fid, char *name)
return ERR_PTR(-ENOMEM);
size = v9fs_fid_xattr_get(fid, name, value, size);
if (size > 0) {
- acl = posix_acl_from_xattr(value, size);
+ acl = posix_acl_from_xattr(&init_user_ns, value, size);
if (IS_ERR(acl))
goto err_out;
}
@@ -96,14 +97,10 @@ static struct posix_acl *v9fs_get_cached_acl(struct inode *inode, int type)
return acl;
}
-int v9fs_check_acl(struct inode *inode, int mask, unsigned int flags)
+struct posix_acl *v9fs_iop_get_acl(struct inode *inode, int type)
{
- struct posix_acl *acl;
struct v9fs_session_info *v9ses;
- if (flags & IPERM_FLAG_RCU)
- return -ECHILD;
-
v9ses = v9fs_inode2v9ses(inode);
if (((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT) ||
((v9ses->flags & V9FS_ACL_MASK) != V9FS_POSIX_ACL)) {
@@ -111,30 +108,18 @@ int v9fs_check_acl(struct inode *inode, int mask, unsigned int flags)
* On access = client and acl = on mode get the acl
* values from the server
*/
- return 0;
+ return NULL;
}
- acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
+ return v9fs_get_cached_acl(inode, type);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
- return -EAGAIN;
}
-static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl)
+static int v9fs_set_acl(struct p9_fid *fid, int type, struct posix_acl *acl)
{
int retval;
char *name;
size_t size;
void *buffer;
- struct inode *inode = dentry->d_inode;
-
- set_cached_acl(inode, type, acl);
-
if (!acl)
return 0;
@@ -143,7 +128,7 @@ static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl)
buffer = kmalloc(size, GFP_KERNEL);
if (!buffer)
return -ENOMEM;
- retval = posix_acl_to_xattr(acl, buffer, size);
+ retval = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
if (retval < 0)
goto err_free_out;
switch (type) {
@@ -156,49 +141,53 @@ static int v9fs_set_acl(struct dentry *dentry, int type, struct posix_acl *acl)
default:
BUG();
}
- retval = v9fs_xattr_set(dentry, name, buffer, size, 0);
+ retval = v9fs_fid_xattr_set(fid, name, buffer, size, 0);
err_free_out:
kfree(buffer);
return retval;
}
-int v9fs_acl_chmod(struct dentry *dentry)
+int v9fs_acl_chmod(struct inode *inode, struct p9_fid *fid)
{
int retval = 0;
- struct posix_acl *acl, *clone;
- struct inode *inode = dentry->d_inode;
+ struct posix_acl *acl;
if (S_ISLNK(inode->i_mode))
return -EOPNOTSUPP;
acl = v9fs_get_cached_acl(inode, ACL_TYPE_ACCESS);
if (acl) {
- clone = posix_acl_clone(acl, GFP_KERNEL);
+ retval = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
+ if (retval)
+ return retval;
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
+ retval = v9fs_set_acl(fid, ACL_TYPE_ACCESS, acl);
posix_acl_release(acl);
- if (!clone)
- return -ENOMEM;
- retval = posix_acl_chmod_masq(clone, inode->i_mode);
- if (!retval)
- retval = v9fs_set_acl(dentry, ACL_TYPE_ACCESS, clone);
- posix_acl_release(clone);
}
return retval;
}
-int v9fs_set_create_acl(struct dentry *dentry,
- struct posix_acl *dpacl, struct posix_acl *pacl)
+int v9fs_set_create_acl(struct inode *inode, struct p9_fid *fid,
+ struct posix_acl *dacl, struct posix_acl *acl)
{
- v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, dpacl);
- v9fs_set_acl(dentry, ACL_TYPE_ACCESS, pacl);
- posix_acl_release(dpacl);
- posix_acl_release(pacl);
+ set_cached_acl(inode, ACL_TYPE_DEFAULT, dacl);
+ set_cached_acl(inode, ACL_TYPE_ACCESS, acl);
+ v9fs_set_acl(fid, ACL_TYPE_DEFAULT, dacl);
+ v9fs_set_acl(fid, ACL_TYPE_ACCESS, acl);
return 0;
}
-int v9fs_acl_mode(struct inode *dir, mode_t *modep,
+void v9fs_put_acl(struct posix_acl *dacl,
+ struct posix_acl *acl)
+{
+ posix_acl_release(dacl);
+ posix_acl_release(acl);
+}
+
+int v9fs_acl_mode(struct inode *dir, umode_t *modep,
struct posix_acl **dpacl, struct posix_acl **pacl)
{
int retval = 0;
- mode_t mode = *modep;
+ umode_t mode = *modep;
struct posix_acl *acl = NULL;
if (!S_ISLNK(mode)) {
@@ -209,29 +198,18 @@ int v9fs_acl_mode(struct inode *dir, mode_t *modep,
mode &= ~current_umask();
}
if (acl) {
- struct posix_acl *clone;
-
if (S_ISDIR(mode))
- *dpacl = acl;
- clone = posix_acl_clone(acl, GFP_NOFS);
- retval = -ENOMEM;
- if (!clone)
- goto cleanup;
-
- retval = posix_acl_create_masq(clone, &mode);
- if (retval < 0) {
- posix_acl_release(clone);
- goto cleanup;
- }
+ *dpacl = posix_acl_dup(acl);
+ retval = __posix_acl_create(&acl, GFP_NOFS, &mode);
+ if (retval < 0)
+ return retval;
if (retval > 0)
- *pacl = clone;
+ *pacl = acl;
+ else
+ posix_acl_release(acl);
}
*modep = mode;
return 0;
-cleanup:
- posix_acl_release(acl);
- return retval;
-
}
static int v9fs_remote_get_acl(struct dentry *dentry, const char *name,
@@ -274,7 +252,7 @@ static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
return PTR_ERR(acl);
if (acl == NULL)
return -ENODATA;
- error = posix_acl_to_xattr(acl, buffer, size);
+ error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
posix_acl_release(acl);
return error;
@@ -327,7 +305,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
return -EPERM;
if (value) {
/* update the cached acl value */
- acl = posix_acl_from_xattr(value, size);
+ acl = posix_acl_from_xattr(&init_user_ns, value, size);
if (IS_ERR(acl))
return PTR_ERR(acl);
else if (acl) {
@@ -342,7 +320,7 @@ static int v9fs_xattr_set_acl(struct dentry *dentry, const char *name,
case ACL_TYPE_ACCESS:
name = POSIX_ACL_XATTR_ACCESS;
if (acl) {
- mode_t mode = inode->i_mode;
+ umode_t mode = inode->i_mode;
retval = posix_acl_equiv_mode(acl, &mode);
if (retval < 0)
goto err_out;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-14 04:47:29 +0000