Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #include <linux/posix_acl.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) #define REISERFS_ACL_VERSION	0x0001
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 	__le16 e_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	__le16 e_perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 	__le32 e_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) } reiserfs_acl_entry;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	__le16 e_tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	__le16 e_perm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) } reiserfs_acl_entry_short;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) typedef struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 	__le32 a_version;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) } reiserfs_acl_header;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) static inline size_t reiserfs_acl_size(int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 	if (count <= 4) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 		return sizeof(reiserfs_acl_header) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		    count * sizeof(reiserfs_acl_entry_short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 		return sizeof(reiserfs_acl_header) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 		    4 * sizeof(reiserfs_acl_entry_short) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 		    (count - 4) * sizeof(reiserfs_acl_entry);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) static inline int reiserfs_acl_count(size_t size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) 	ssize_t s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) 	size -= sizeof(reiserfs_acl_header);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) 	s = size - 4 * sizeof(reiserfs_acl_entry_short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) 	if (s < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) 		if (size % sizeof(reiserfs_acl_entry_short))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) 			return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) 		return size / sizeof(reiserfs_acl_entry_short);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) 		if (s % sizeof(reiserfs_acl_entry))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) 			return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) 		return s / sizeof(reiserfs_acl_entry) + 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #ifdef CONFIG_REISERFS_FS_POSIX_ACL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct posix_acl *reiserfs_get_acl(struct inode *inode, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int reiserfs_set_acl(struct inode *inode, struct posix_acl *acl, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) int reiserfs_acl_chmod(struct inode *inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) 				 struct inode *dir, struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) 				 struct inode *inode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) int reiserfs_cache_default_acl(struct inode *dir);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define reiserfs_cache_default_acl(inode) 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define reiserfs_get_acl NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define reiserfs_set_acl NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static inline int reiserfs_acl_chmod(struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) static inline int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) 			     const struct inode *dir, struct dentry *dentry,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) 			     struct inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #endif