return acl;
}
-
-/*
- * Get posix acl.
- */
-static struct posix_acl *ocfs2_get_acl(struct inode *inode, int type)
-{
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct buffer_head *di_bh = NULL;
- struct posix_acl *acl;
- int ret;
-
- if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return NULL;
-
- ret = ocfs2_inode_lock(inode, &di_bh, 0);
- if (ret < 0) {
- mlog_errno(ret);
- acl = ERR_PTR(ret);
- return acl;
- }
-
- acl = ocfs2_get_acl_nolock(inode, type, di_bh);
-
- ocfs2_inode_unlock(inode, 0);
-
- brelse(di_bh);
-
- return acl;
-}
-
/*
* Helper function to set i_mode in memory and disk. Some call paths
* will not have di_bh or a journal handle to pass, in which case it
/*
* Set the access or default ACL of an inode.
*/
-static int ocfs2_set_acl(handle_t *handle,
+int ocfs2_set_acl(handle_t *handle,
struct inode *inode,
struct buffer_head *di_bh,
int type,
return ret;
}
+int ocfs2_iop_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+ return ocfs2_set_acl(NULL, inode, NULL, type, acl, NULL, NULL);
+}
+
struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type)
{
struct ocfs2_super *osb;
return acl;
}
-
-int ocfs2_acl_chmod(struct inode *inode)
-{
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct posix_acl *acl;
- int ret;
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
-
- if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return 0;
-
- acl = ocfs2_get_acl(inode, ACL_TYPE_ACCESS);
- if (IS_ERR(acl) || !acl)
- return PTR_ERR(acl);
- ret = __posix_acl_chmod(&acl, GFP_KERNEL, inode->i_mode);
- if (ret)
- return ret;
- ret = ocfs2_set_acl(NULL, inode, NULL, ACL_TYPE_ACCESS,
- acl, NULL, NULL);
- posix_acl_release(acl);
- return ret;
-}
-
-/*
- * Initialize the ACLs of a new inode. If parent directory has default ACL,
- * then clone to new inode. Called from ocfs2_mknod.
- */
-int ocfs2_init_acl(handle_t *handle,
- struct inode *inode,
- struct inode *dir,
- struct buffer_head *di_bh,
- struct buffer_head *dir_bh,
- struct ocfs2_alloc_context *meta_ac,
- struct ocfs2_alloc_context *data_ac)
-{
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct posix_acl *acl = NULL;
- int ret = 0, ret2;
- umode_t mode;
-
- if (!S_ISLNK(inode->i_mode)) {
- if (osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) {
- acl = ocfs2_get_acl_nolock(dir, ACL_TYPE_DEFAULT,
- dir_bh);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- }
- if (!acl) {
- mode = inode->i_mode & ~current_umask();
- ret = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
- if (ret) {
- mlog_errno(ret);
- goto cleanup;
- }
- }
- }
- if ((osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL) && acl) {
- if (S_ISDIR(inode->i_mode)) {
- ret = ocfs2_set_acl(handle, inode, di_bh,
- ACL_TYPE_DEFAULT, acl,
- meta_ac, data_ac);
- if (ret)
- goto cleanup;
- }
- mode = inode->i_mode;
- ret = __posix_acl_create(&acl, GFP_NOFS, &mode);
- if (ret < 0)
- return ret;
-
- ret2 = ocfs2_acl_set_mode(inode, di_bh, handle, mode);
- if (ret2) {
- mlog_errno(ret2);
- ret = ret2;
- goto cleanup;
- }
- if (ret > 0) {
- ret = ocfs2_set_acl(handle, inode,
- di_bh, ACL_TYPE_ACCESS,
- acl, meta_ac, data_ac);
- }
- }
-cleanup:
- posix_acl_release(acl);
- return ret;
-}
-
-static size_t ocfs2_xattr_list_acl_access(struct dentry *dentry,
- char *list,
- size_t list_len,
- const char *name,
- size_t name_len,
- int type)
-{
- struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
- const size_t size = sizeof(POSIX_ACL_XATTR_ACCESS);
-
- if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return 0;
-
- if (list && size <= list_len)
- memcpy(list, POSIX_ACL_XATTR_ACCESS, size);
- return size;
-}
-
-static size_t ocfs2_xattr_list_acl_default(struct dentry *dentry,
- char *list,
- size_t list_len,
- const char *name,
- size_t name_len,
- int type)
-{
- struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
- const size_t size = sizeof(POSIX_ACL_XATTR_DEFAULT);
-
- if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return 0;
-
- if (list && size <= list_len)
- memcpy(list, POSIX_ACL_XATTR_DEFAULT, size);
- return size;
-}
-
-static int ocfs2_xattr_get_acl(struct dentry *dentry, const char *name,
- void *buffer, size_t size, int type)
-{
- struct ocfs2_super *osb = OCFS2_SB(dentry->d_sb);
- struct posix_acl *acl;
- int ret;
-
- if (strcmp(name, "") != 0)
- return -EINVAL;
- if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return -EOPNOTSUPP;
-
- acl = ocfs2_get_acl(dentry->d_inode, type);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl == NULL)
- return -ENODATA;
- ret = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
- posix_acl_release(acl);
-
- return ret;
-}
-
-static int ocfs2_xattr_set_acl(struct dentry *dentry, const char *name,
- const void *value, size_t size, int flags, int type)
-{
- struct inode *inode = dentry->d_inode;
- struct ocfs2_super *osb = OCFS2_SB(inode->i_sb);
- struct posix_acl *acl;
- int ret = 0;
-
- if (strcmp(name, "") != 0)
- return -EINVAL;
- if (!(osb->s_mount_opt & OCFS2_MOUNT_POSIX_ACL))
- return -EOPNOTSUPP;
-
- if (!inode_owner_or_capable(inode))
- return -EPERM;
-
- if (value) {
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- else if (acl) {
- ret = posix_acl_valid(acl);
- if (ret)
- goto cleanup;
- }
- } else
- acl = NULL;
-
- ret = ocfs2_set_acl(NULL, inode, NULL, type, acl, NULL, NULL);
-
-cleanup:
- posix_acl_release(acl);
- return ret;
-}
-
-const struct xattr_handler ocfs2_xattr_acl_access_handler = {
- .prefix = POSIX_ACL_XATTR_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .list = ocfs2_xattr_list_acl_access,
- .get = ocfs2_xattr_get_acl,
- .set = ocfs2_xattr_set_acl,
-};
-
-const struct xattr_handler ocfs2_xattr_acl_default_handler = {
- .prefix = POSIX_ACL_XATTR_DEFAULT,
- .flags = ACL_TYPE_DEFAULT,
- .list = ocfs2_xattr_list_acl_default,
- .get = ocfs2_xattr_get_acl,
- .set = ocfs2_xattr_set_acl,
-};
};
struct posix_acl *ocfs2_iop_get_acl(struct inode *inode, int type);
-extern int ocfs2_acl_chmod(struct inode *);
-extern int ocfs2_init_acl(handle_t *, struct inode *, struct inode *,
- struct buffer_head *, struct buffer_head *,
- struct ocfs2_alloc_context *,
- struct ocfs2_alloc_context *);
+int ocfs2_iop_set_acl(struct inode *inode, struct posix_acl *acl, int type);
+int ocfs2_set_acl(handle_t *handle,
+ struct inode *inode,
+ struct buffer_head *di_bh,
+ int type,
+ struct posix_acl *acl,
+ struct ocfs2_alloc_context *meta_ac,
+ struct ocfs2_alloc_context *data_ac);
#endif /* OCFS2_ACL_H */
dqput(transfer_to[qtype]);
if (!status && attr->ia_valid & ATTR_MODE) {
- status = ocfs2_acl_chmod(inode);
+ status = posix_acl_chmod(inode, inode->i_mode);
if (status < 0)
mlog_errno(status);
}
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
.get_acl = ocfs2_iop_get_acl,
+ .set_acl = ocfs2_iop_set_acl,
};
const struct inode_operations ocfs2_special_file_iops = {
.getattr = ocfs2_getattr,
.permission = ocfs2_permission,
.get_acl = ocfs2_iop_get_acl,
+ .set_acl = ocfs2_iop_set_acl,
};
/*
struct ocfs2_dir_lookup_result lookup = { NULL, };
sigset_t oldset;
int did_block_signals = 0;
+ struct posix_acl *default_acl = NULL, *acl = NULL;
trace_ocfs2_mknod(dir, dentry, dentry->d_name.len, dentry->d_name.name,
(unsigned long long)OCFS2_I(dir)->ip_blkno,
goto leave;
}
+ status = posix_acl_create(dir, &mode, &default_acl, &acl);
+ if (status) {
+ mlog_errno(status);
+ goto leave;
+ }
+
handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
S_ISDIR(mode),
xattr_credits));
inc_nlink(dir);
}
- status = ocfs2_init_acl(handle, inode, dir, new_fe_bh, parent_fe_bh,
- meta_ac, data_ac);
+ if (default_acl) {
+ status = ocfs2_set_acl(handle, inode, new_fe_bh,
+ ACL_TYPE_DEFAULT, default_acl,
+ meta_ac, data_ac);
+ }
+ if (!status && acl) {
+ status = ocfs2_set_acl(handle, inode, new_fe_bh,
+ ACL_TYPE_ACCESS, acl,
+ meta_ac, data_ac);
+ }
+
if (status < 0) {
mlog_errno(status);
goto leave;
d_instantiate(dentry, inode);
status = 0;
leave:
+ if (default_acl)
+ posix_acl_release(default_acl);
+ if (acl)
+ posix_acl_release(acl);
if (status < 0 && did_quota_inode)
dquot_free_inode(inode);
if (handle)
.removexattr = generic_removexattr,
.fiemap = ocfs2_fiemap,
.get_acl = ocfs2_iop_get_acl,
+ .set_acl = ocfs2_iop_set_acl,
};
#include <linux/quotaops.h>
#include <linux/namei.h>
#include <linux/mount.h>
+#include <linux/posix_acl.h>
struct ocfs2_cow_context {
struct inode *inode;
struct inode *inode = old_dentry->d_inode;
struct buffer_head *old_bh = NULL;
struct inode *new_orphan_inode = NULL;
+ struct posix_acl *default_acl, *acl;
+ umode_t mode;
if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)))
return -EOPNOTSUPP;
- error = ocfs2_create_inode_in_orphan(dir, inode->i_mode,
+ mode = inode->i_mode;
+ error = posix_acl_create(dir, &mode, &default_acl, &acl);
+ if (error) {
+ mlog_errno(error);
+ goto out;
+ }
+
+ error = ocfs2_create_inode_in_orphan(dir, mode,
&new_orphan_inode);
if (error) {
mlog_errno(error);
/* If the security isn't preserved, we need to re-initialize them. */
if (!preserve) {
error = ocfs2_init_security_and_acl(dir, new_orphan_inode,
- &new_dentry->d_name);
+ &new_dentry->d_name,
+ default_acl, acl);
if (error)
mlog_errno(error);
}
out:
+ if (default_acl)
+ posix_acl_release(default_acl);
+ if (acl)
+ posix_acl_release(acl);
if (!error) {
error = ocfs2_mv_orphaned_inode_to_new(dir, new_orphan_inode,
new_dentry);
const struct xattr_handler *ocfs2_xattr_handlers[] = {
&ocfs2_xattr_user_handler,
- &ocfs2_xattr_acl_access_handler,
- &ocfs2_xattr_acl_default_handler,
+ &posix_acl_access_xattr_handler,
+ &posix_acl_default_xattr_handler,
&ocfs2_xattr_trusted_handler,
&ocfs2_xattr_security_handler,
NULL
static const struct xattr_handler *ocfs2_xattr_handler_map[OCFS2_XATTR_MAX] = {
[OCFS2_XATTR_INDEX_USER] = &ocfs2_xattr_user_handler,
[OCFS2_XATTR_INDEX_POSIX_ACL_ACCESS]
- = &ocfs2_xattr_acl_access_handler,
+ = &posix_acl_access_xattr_handler,
[OCFS2_XATTR_INDEX_POSIX_ACL_DEFAULT]
- = &ocfs2_xattr_acl_default_handler,
+ = &posix_acl_default_xattr_handler,
[OCFS2_XATTR_INDEX_TRUSTED] = &ocfs2_xattr_trusted_handler,
[OCFS2_XATTR_INDEX_SECURITY] = &ocfs2_xattr_security_handler,
};
*/
int ocfs2_init_security_and_acl(struct inode *dir,
struct inode *inode,
- const struct qstr *qstr)
+ const struct qstr *qstr,
+ struct posix_acl *default_acl,
+ struct posix_acl *acl)
{
- int ret = 0;
struct buffer_head *dir_bh = NULL;
+ int ret = 0;
ret = ocfs2_init_security_get(inode, dir, qstr, NULL);
if (ret) {
goto leave;
}
- ret = ocfs2_init_acl(NULL, inode, dir, NULL, dir_bh, NULL, NULL);
- if (ret)
- mlog_errno(ret);
+ if (!ret && default_acl)
+ ret = ocfs2_iop_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
+ if (!ret && acl)
+ ret = ocfs2_iop_set_acl(inode, acl, ACL_TYPE_ACCESS);
ocfs2_inode_unlock(dir, 0);
brelse(dir_bh);
extern const struct xattr_handler ocfs2_xattr_user_handler;
extern const struct xattr_handler ocfs2_xattr_trusted_handler;
extern const struct xattr_handler ocfs2_xattr_security_handler;
-extern const struct xattr_handler ocfs2_xattr_acl_access_handler;
-extern const struct xattr_handler ocfs2_xattr_acl_default_handler;
extern const struct xattr_handler *ocfs2_xattr_handlers[];
ssize_t ocfs2_listxattr(struct dentry *, char *, size_t);
bool preserve_security);
int ocfs2_init_security_and_acl(struct inode *dir,
struct inode *inode,
- const struct qstr *qstr);
+ const struct qstr *qstr,
+ struct posix_acl *default_acl,
+ struct posix_acl *acl);
#endif /* OCFS2_XATTR_H */
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff