diff options
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.c | 6 | ||||
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl.h | 23 | ||||
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl32.c | 94 | ||||
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_ioctl32.h | 20 |
4 files changed, 136 insertions, 7 deletions
diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index 498d3e15843b..c8f1e632ba94 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -490,7 +490,7 @@ xfs_attrlist_by_handle( return -error; } -STATIC int +int xfs_attrmulti_attr_get( struct inode *inode, char *name, @@ -519,7 +519,7 @@ xfs_attrmulti_attr_get( return error; } -STATIC int +int xfs_attrmulti_attr_set( struct inode *inode, char *name, @@ -549,7 +549,7 @@ xfs_attrmulti_attr_set( return error; } -STATIC int +int xfs_attrmulti_attr_remove( struct inode *inode, char *name, diff --git a/fs/xfs/linux-2.6/xfs_ioctl.h b/fs/xfs/linux-2.6/xfs_ioctl.h index 2df849f49a5e..f67dc69381e8 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.h +++ b/fs/xfs/linux-2.6/xfs_ioctl.h @@ -44,4 +44,27 @@ xfs_readlink_by_handle( xfs_mount_t *mp, xfs_fsop_handlereq_t *hreq, struct inode *parinode); + +extern int +xfs_attrmulti_attr_get( + struct inode *inode, + char *name, + char __user *ubuf, + __uint32_t *len, + __uint32_t flags); + +extern int + xfs_attrmulti_attr_set( + struct inode *inode, + char *name, + const char __user *ubuf, + __uint32_t len, + __uint32_t flags); + +extern int +xfs_attrmulti_attr_remove( + struct inode *inode, + char *name, + __uint32_t flags); + #endif diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index e7eb0d7e0d56..17993352aa64 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -476,6 +476,93 @@ xfs_compat_attrlist_by_handle( return -error; } +STATIC int +xfs_compat_attrmulti_by_handle( + xfs_mount_t *mp, + void __user *arg, + struct inode *parinode) +{ + int error; + compat_xfs_attr_multiop_t *ops; + compat_xfs_fsop_attrmulti_handlereq_t am_hreq; + struct inode *inode; + unsigned int i, size; + char *attr_name; + + if (!capable(CAP_SYS_ADMIN)) + return -XFS_ERROR(EPERM); + if (copy_from_user(&am_hreq, arg, + sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) + return -XFS_ERROR(EFAULT); + + error = xfs_vget_fsop_handlereq_compat(mp, parinode, &am_hreq.hreq, + &inode); + if (error) + goto out; + + error = E2BIG; + size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); + if (!size || size > 16 * PAGE_SIZE) + goto out_vn_rele; + + error = ENOMEM; + ops = kmalloc(size, GFP_KERNEL); + if (!ops) + goto out_vn_rele; + + error = EFAULT; + if (copy_from_user(ops, compat_ptr(am_hreq.ops), size)) + goto out_kfree_ops; + + attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); + if (!attr_name) + goto out_kfree_ops; + + + error = 0; + for (i = 0; i < am_hreq.opcount; i++) { + ops[i].am_error = strncpy_from_user(attr_name, + compat_ptr(ops[i].am_attrname), + MAXNAMELEN); + if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) + error = -ERANGE; + if (ops[i].am_error < 0) + break; + + switch (ops[i].am_opcode) { + case ATTR_OP_GET: + ops[i].am_error = xfs_attrmulti_attr_get(inode, + attr_name, + compat_ptr(ops[i].am_attrvalue), + &ops[i].am_length, ops[i].am_flags); + break; + case ATTR_OP_SET: + ops[i].am_error = xfs_attrmulti_attr_set(inode, + attr_name, + compat_ptr(ops[i].am_attrvalue), + ops[i].am_length, ops[i].am_flags); + break; + case ATTR_OP_REMOVE: + ops[i].am_error = xfs_attrmulti_attr_remove(inode, + attr_name, ops[i].am_flags); + break; + default: + ops[i].am_error = EINVAL; + } + } + + if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) + error = XFS_ERROR(EFAULT); + + kfree(attr_name); + out_kfree_ops: + kfree(ops); + out_vn_rele: + iput(inode); + out: + return -error; +} + STATIC long xfs_compat_ioctl( xfs_inode_t *ip, @@ -499,10 +586,7 @@ xfs_compat_ioctl( case XFS_IOC_GETBMAP: case XFS_IOC_GETBMAPA: case XFS_IOC_GETBMAPX: -/* not handled - case XFS_IOC_FSSETDM_BY_HANDLE: - case XFS_IOC_ATTRMULTI_BY_HANDLE: -*/ +/* case XFS_IOC_FSSETDM_BY_HANDLE: not handled */ case XFS_IOC_FSCOUNTS: case XFS_IOC_SET_RESBLKS: case XFS_IOC_GET_RESBLKS: @@ -610,6 +694,8 @@ xfs_compat_ioctl( } case XFS_IOC_ATTRLIST_BY_HANDLE_32: return xfs_compat_attrlist_by_handle(mp, arg, inode); + case XFS_IOC_ATTRMULTI_BY_HANDLE_32: + return xfs_compat_attrmulti_by_handle(mp, arg, inode); default: return -XFS_ERROR(ENOIOCTLCMD); } diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index bbf3a2cd8a7d..785e7ec318cf 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -135,6 +135,26 @@ typedef struct compat_xfs_fsop_attrlist_handlereq { #define XFS_IOC_ATTRLIST_BY_HANDLE_32 \ _IOW('X', 122, struct compat_xfs_fsop_attrlist_handlereq) +/* am_opcodes defined in xfs_fs.h */ +typedef struct compat_xfs_attr_multiop { + __u32 am_opcode; + __s32 am_error; + compat_uptr_t am_attrname; + compat_uptr_t am_attrvalue; + __u32 am_length; + __u32 am_flags; +} compat_xfs_attr_multiop_t; + +typedef struct compat_xfs_fsop_attrmulti_handlereq { + struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */ + __u32 opcount;/* count of following multiop */ + /* ptr to compat_xfs_attr_multiop */ + compat_uptr_t ops; /* attr_multi data */ +} compat_xfs_fsop_attrmulti_handlereq_t; + +#define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \ + _IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq) + #ifdef BROKEN_X86_ALIGNMENT /* on ia32 l_start is on a 32-bit boundary */ typedef struct compat_xfs_flock64 { |