1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
#include <linux/init.h>
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#include <linux/posix_acl.h>
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#include <linux/xattr_acl.h>
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#define REISERFS_ACL_VERSION 0x0001
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typedef struct {
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__u16 e_tag;
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__u16 e_perm;
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__u32 e_id;
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} reiserfs_acl_entry;
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typedef struct {
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__u16 e_tag;
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__u16 e_perm;
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} reiserfs_acl_entry_short;
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typedef struct {
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__u32 a_version;
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} reiserfs_acl_header;
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static inline size_t reiserfs_acl_size(int count)
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{
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if (count <= 4) {
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return sizeof(reiserfs_acl_header) +
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count * sizeof(reiserfs_acl_entry_short);
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} else {
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return sizeof(reiserfs_acl_header) +
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4 * sizeof(reiserfs_acl_entry_short) +
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(count - 4) * sizeof(reiserfs_acl_entry);
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}
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}
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static inline int reiserfs_acl_count(size_t size)
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{
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ssize_t s;
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size -= sizeof(reiserfs_acl_header);
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s = size - 4 * sizeof(reiserfs_acl_entry_short);
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if (s < 0) {
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if (size % sizeof(reiserfs_acl_entry_short))
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return -1;
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return size / sizeof(reiserfs_acl_entry_short);
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} else {
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if (s % sizeof(reiserfs_acl_entry))
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return -1;
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return s / sizeof(reiserfs_acl_entry) + 4;
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}
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}
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#ifdef CONFIG_REISERFS_FS_POSIX_ACL
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struct posix_acl * reiserfs_get_acl(struct inode *inode, int type);
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int reiserfs_acl_chmod (struct inode *inode);
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int reiserfs_inherit_default_acl (struct inode *dir, struct dentry *dentry, struct inode *inode);
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int reiserfs_cache_default_acl (struct inode *dir);
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extern int reiserfs_xattr_posix_acl_init (void) __init;
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extern int reiserfs_xattr_posix_acl_exit (void);
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extern struct reiserfs_xattr_handler posix_acl_default_handler;
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extern struct reiserfs_xattr_handler posix_acl_access_handler;
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#else
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#define reiserfs_get_acl NULL
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#define reiserfs_cache_default_acl(inode) 0
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static inline int
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reiserfs_xattr_posix_acl_init (void)
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{
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return 0;
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}
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static inline int
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reiserfs_xattr_posix_acl_exit (void)
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{
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return 0;
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}
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static inline int
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reiserfs_acl_chmod (struct inode *inode)
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{
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return 0;
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}
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static inline int
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reiserfs_inherit_default_acl (const struct inode *dir, struct dentry *dentry, struct inode *inode)
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{
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return 0;
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}
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#endif
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