diff options
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_iops.c | 27 | ||||
| -rw-r--r-- | fs/xfs/xfs_acl.c | 30 | ||||
| -rw-r--r-- | fs/xfs/xfs_acl.h | 2 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.c | 63 | ||||
| -rw-r--r-- | fs/xfs/xfs_inode.h | 1 | ||||
| -rw-r--r-- | fs/xfs/xfs_vnodeops.c | 21 | ||||
| -rw-r--r-- | fs/xfs/xfs_vnodeops.h | 1 |
7 files changed, 25 insertions, 120 deletions
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index 1ecd86a8c6e6..c3231a519361 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -559,12 +559,31 @@ xfs_vn_put_link( #ifdef CONFIG_XFS_POSIX_ACL STATIC int +xfs_check_acl( + struct inode *inode, + int mask) +{ + struct xfs_inode *ip = XFS_I(inode); + int error; + + xfs_itrace_entry(ip); + + if (XFS_IFORK_Q(ip)) { + error = xfs_acl_iaccess(ip, mask, NULL); + if (error != -1) + return -error; + } + + return -EAGAIN; +} + +STATIC int xfs_vn_permission( - struct inode *inode, - int mode, - struct nameidata *nd) + struct inode *inode, + int mask, + struct nameidata *nd) { - return -xfs_access(XFS_I(inode), mode << 6, NULL); + return generic_permission(inode, mask, xfs_check_acl); } #else #define xfs_vn_permission NULL diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index 5bfb66f33caf..7272fe39a92d 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -392,32 +392,6 @@ xfs_acl_allow_set( } /* - * The access control process to determine the access permission: - * if uid == file owner id, use the file owner bits. - * if gid == file owner group id, use the file group bits. - * scan ACL for a matching user or group, and use matched entry - * permission. Use total permissions of all matching group entries, - * until all acl entries are exhausted. The final permission produced - * by matching acl entry or entries needs to be & with group permission. - * if not owner, owning group, or matching entry in ACL, use file - * other bits. - */ -STATIC int -xfs_acl_capability_check( - mode_t mode, - cred_t *cr) -{ - if ((mode & ACL_READ) && !capable_cred(cr, CAP_DAC_READ_SEARCH)) - return EACCES; - if ((mode & ACL_WRITE) && !capable_cred(cr, CAP_DAC_OVERRIDE)) - return EACCES; - if ((mode & ACL_EXECUTE) && !capable_cred(cr, CAP_DAC_OVERRIDE)) - return EACCES; - - return 0; -} - -/* * Note: cr is only used here for the capability check if the ACL test fails. * It is not used to find out the credentials uid or groups etc, as was * done in IRIX. It is assumed that the uid and groups for the current @@ -438,7 +412,6 @@ xfs_acl_access( matched.ae_tag = 0; /* Invalid type */ matched.ae_perm = 0; - md >>= 6; /* Normalize the bits for comparison */ for (i = 0; i < fap->acl_cnt; i++) { /* @@ -520,7 +493,8 @@ xfs_acl_access( break; } - return xfs_acl_capability_check(md, cr); + /* EACCES tells generic_permission to check for capability overrides */ + return EACCES; } /* diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h index 34b7d3391299..332a772461c4 100644 --- a/fs/xfs/xfs_acl.h +++ b/fs/xfs/xfs_acl.h @@ -75,7 +75,6 @@ extern int xfs_acl_vremove(bhv_vnode_t *, int); #define _ACL_GET_DEFAULT(pv,pd) (xfs_acl_vtoacl(pv,NULL,pd) == 0) #define _ACL_ACCESS_EXISTS xfs_acl_vhasacl_access #define _ACL_DEFAULT_EXISTS xfs_acl_vhasacl_default -#define _ACL_XFS_IACCESS(i,m,c) (XFS_IFORK_Q(i) ? xfs_acl_iaccess(i,m,c) : -1) #define _ACL_ALLOC(a) ((a) = kmem_zone_alloc(xfs_acl_zone, KM_SLEEP)) #define _ACL_FREE(a) ((a)? kmem_zone_free(xfs_acl_zone, (a)):(void)0) @@ -95,7 +94,6 @@ extern int xfs_acl_vremove(bhv_vnode_t *, int); #define _ACL_GET_DEFAULT(pv,pd) (0) #define _ACL_ACCESS_EXISTS (NULL) #define _ACL_DEFAULT_EXISTS (NULL) -#define _ACL_XFS_IACCESS(i,m,c) (-1) #endif #endif /* __XFS_ACL_H__ */ diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index 75b636c14876..a550546a7083 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -3583,69 +3583,6 @@ xfs_iflush_all( XFS_MOUNT_IUNLOCK(mp); } -/* - * xfs_iaccess: check accessibility of inode for mode. - */ -int -xfs_iaccess( - xfs_inode_t *ip, - mode_t mode, - cred_t *cr) -{ - int error; - mode_t orgmode = mode; - struct inode *inode = vn_to_inode(XFS_ITOV(ip)); - - if (mode & S_IWUSR) { - umode_t imode = inode->i_mode; - - if (IS_RDONLY(inode) && - (S_ISREG(imode) || S_ISDIR(imode) || S_ISLNK(imode))) - return XFS_ERROR(EROFS); - - if (IS_IMMUTABLE(inode)) - return XFS_ERROR(EACCES); - } - - /* - * If there's an Access Control List it's used instead of - * the mode bits. - */ - if ((error = _ACL_XFS_IACCESS(ip, mode, cr)) != -1) - return error ? XFS_ERROR(error) : 0; - - if (current_fsuid(cr) != ip->i_d.di_uid) { - mode >>= 3; - if (!in_group_p((gid_t)ip->i_d.di_gid)) - mode >>= 3; - } - - /* - * If the DACs are ok we don't need any capability check. - */ - if ((ip->i_d.di_mode & mode) == mode) - return 0; - /* - * Read/write DACs are always overridable. - * Executable DACs are overridable if at least one exec bit is set. - */ - if (!(orgmode & S_IXUSR) || - (inode->i_mode & S_IXUGO) || S_ISDIR(inode->i_mode)) - if (capable_cred(cr, CAP_DAC_OVERRIDE)) - return 0; - - if ((orgmode == S_IRUSR) || - (S_ISDIR(inode->i_mode) && (!(orgmode & S_IWUSR)))) { - if (capable_cred(cr, CAP_DAC_READ_SEARCH)) - return 0; -#ifdef NOISE - cmn_err(CE_NOTE, "Ick: mode=%o, orgmode=%o", mode, orgmode); -#endif /* NOISE */ - return XFS_ERROR(EACCES); - } - return XFS_ERROR(EACCES); -} - #ifdef XFS_ILOCK_TRACE ktrace_t *xfs_ilock_trace_buf; diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h index a8d6f5e251aa..bfcd72cbaeea 100644 --- a/fs/xfs/xfs_inode.h +++ b/fs/xfs/xfs_inode.h @@ -550,7 +550,6 @@ void xfs_iunpin(xfs_inode_t *); int xfs_iextents_copy(xfs_inode_t *, xfs_bmbt_rec_t *, int); int xfs_iflush(xfs_inode_t *, uint); void xfs_iflush_all(struct xfs_mount *); -int xfs_iaccess(xfs_inode_t *, mode_t, cred_t *); void xfs_ichgtime(xfs_inode_t *, int); xfs_fsize_t xfs_file_last_byte(xfs_inode_t *); void xfs_lock_inodes(xfs_inode_t **, int, int, uint); diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 076555e8763f..27e1bea8169f 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -898,27 +898,6 @@ xfs_setattr( return code; } - -/* - * xfs_access - * Null conversion from vnode mode bits to inode mode bits, as in efs. - */ -int -xfs_access( - xfs_inode_t *ip, - int mode, - cred_t *credp) -{ - int error; - - xfs_itrace_entry(ip); - xfs_ilock(ip, XFS_ILOCK_SHARED); - error = xfs_iaccess(ip, mode, credp); - xfs_iunlock(ip, XFS_ILOCK_SHARED); - return error; -} - - /* * The maximum pathlen is 1024 bytes. Since the minimum file system * blocksize is 512 bytes, we can get a max of 2 extents back from diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h index a501aeffb808..4e3970f0e5e3 100644 --- a/fs/xfs/xfs_vnodeops.h +++ b/fs/xfs/xfs_vnodeops.h @@ -18,7 +18,6 @@ int xfs_open(struct xfs_inode *ip); int xfs_getattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags); int xfs_setattr(struct xfs_inode *ip, struct bhv_vattr *vap, int flags, struct cred *credp); -int xfs_access(struct xfs_inode *ip, int mode, struct cred *credp); int xfs_readlink(struct xfs_inode *ip, char *link); int xfs_fsync(struct xfs_inode *ip, int flag, xfs_off_t start, xfs_off_t stop); |
