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/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
* vim:expandtab:shiftwidth=8:tabstop=8:
*
* Copyright (C) 2001, 2002 Cluster File Systems, Inc.
* Copyright (C) 2001 Tacit Networks, Inc.
*
* This file is part of InterMezzo, http://www.inter-mezzo.org.
*
* InterMezzo is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* InterMezzo is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with InterMezzo; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __INTERMEZZO_IDL_H__
#define __INTERMEZZO_IDL_H__
#include <linux/ioctl.h>
#include <linux/types.h>
/* this file contains all data structures used in InterMezzo's interfaces:
* - upcalls
* - ioctl's
* - KML records
* - RCVD records
* - rpc's
*/
/* UPCALL */
#define INTERMEZZO_MINOR 248
#define IZO_UPC_VERSION 0x00010002
#define IZO_UPC_PERMIT 1
#define IZO_UPC_CONNECT 2
#define IZO_UPC_GO_FETCH_KML 3
#define IZO_UPC_OPEN 4
#define IZO_UPC_REVOKE_PERMIT 5
#define IZO_UPC_KML 6
#define IZO_UPC_BACKFETCH 7
#define IZO_UPC_KML_TRUNC 8
#define IZO_UPC_SET_KMLSIZE 9
#define IZO_UPC_BRANCH_UNDO 10
#define IZO_UPC_BRANCH_REDO 11
#define IZO_UPC_GET_FILEID 12
#define IZO_UPC_CLIENT_MAKE_BRANCH 13
#define IZO_UPC_SERVER_MAKE_BRANCH 14
#define IZO_UPC_REPSTATUS 15
#define IZO_UPC_LARGEST_OPCODE 15
struct izo_upcall_hdr {
__u32 u_len;
__u32 u_version;
__u32 u_opc;
__u32 u_uniq;
__u32 u_pid;
__u32 u_uid;
__u32 u_pathlen;
__u32 u_fsetlen;
__u64 u_offset;
__u64 u_length;
__u32 u_first_recno;
__u32 u_last_recno;
__u32 u_async;
__u32 u_reclen;
__u8 u_uuid[16];
};
/* This structure _must_ sit at the beginning of the buffer */
struct izo_upcall_resp {
__u32 opcode;
__u32 unique;
__u32 result;
};
/* IOCTL */
#define IZO_IOCTL_VERSION 0x00010003
/* maximum size supported for ioc_pbuf1 */
#define KML_MAX_BUF (64*1024)
struct izo_ioctl_hdr {
__u32 ioc_len;
__u32 ioc_version;
};
struct izo_ioctl_data {
__u32 ioc_len;
__u32 ioc_version;
__u32 ioc_izodev;
__u32 ioc_kmlrecno;
__u64 ioc_kmlsize;
__u32 ioc_flags;
__s32 ioc_inofd;
__u64 ioc_ino;
__u64 ioc_generation;
__u32 ioc_mark_what;
__u32 ioc_and_flag;
__u32 ioc_or_flag;
__u32 ioc_dev;
__u32 ioc_offset;
__u32 ioc_slot;
__u64 ioc_uid;
__u8 ioc_uuid[16];
__u32 ioc_inllen1; /* path */
char *ioc_inlbuf1;
__u32 ioc_inllen2; /* fileset */
char *ioc_inlbuf2;
__u32 ioc_plen1; /* buffers in user space (KML) */
char *ioc_pbuf1;
__u32 ioc_plen2; /* buffers in user space (KML) */
char *ioc_pbuf2;
char ioc_bulk[0];
};
#define IZO_IOC_DEVICE _IOW ('p',0x50, void *)
#define IZO_IOC_REINTKML _IOW ('p',0x51, void *)
#define IZO_IOC_GET_RCVD _IOW ('p',0x52, void *)
#define IZO_IOC_SET_IOCTL_UID _IOW ('p',0x53, void *)
#define IZO_IOC_GET_KML_SIZE _IOW ('p',0x54, void *)
#define IZO_IOC_PURGE_FILE_DATA _IOW ('p',0x55, void *)
#define IZO_IOC_CONNECT _IOW ('p',0x56, void *)
#define IZO_IOC_GO_FETCH_KML _IOW ('p',0x57, void *)
#define IZO_IOC_MARK _IOW ('p',0x58, void *)
#define IZO_IOC_CLEAR_FSET _IOW ('p',0x59, void *)
#define IZO_IOC_CLEAR_ALL_FSETS _IOW ('p',0x60, void *)
#define IZO_IOC_SET_FSET _IOW ('p',0x61, void *)
#define IZO_IOC_REVOKE_PERMIT _IOW ('p',0x62, void *)
#define IZO_IOC_SET_KMLSIZE _IOW ('p',0x63, void *)
#define IZO_IOC_CLIENT_MAKE_BRANCH _IOW ('p',0x64, void *)
#define IZO_IOC_SERVER_MAKE_BRANCH _IOW ('p',0x65, void *)
#define IZO_IOC_BRANCH_UNDO _IOW ('p',0x66, void *)
#define IZO_IOC_BRANCH_REDO _IOW ('p',0x67, void *)
#define IZO_IOC_SET_PID _IOW ('p',0x68, void *)
#define IZO_IOC_SET_CHANNEL _IOW ('p',0x69, void *)
#define IZO_IOC_GET_CHANNEL _IOW ('p',0x70, void *)
#define IZO_IOC_GET_FILEID _IOW ('p',0x71, void *)
#define IZO_IOC_ADJUST_LML _IOW ('p',0x72, void *)
#define IZO_IOC_SET_FILEID _IOW ('p',0x73, void *)
#define IZO_IOC_REPSTATUS _IOW ('p',0x74, void *)
/* marking flags for fsets */
#define FSET_CLIENT_RO 0x00000001
#define FSET_LENTO_RO 0x00000002
#define FSET_HASPERMIT 0x00000004 /* we have a permit to WB */
#define FSET_INSYNC 0x00000008 /* this fileset is in sync */
#define FSET_PERMIT_WAITING 0x00000010 /* Lento is waiting for permit */
#define FSET_STEAL_PERMIT 0x00000020 /* take permit if Lento is dead */
#define FSET_JCLOSE_ON_WRITE 0x00000040 /* Journal closes on writes */
#define FSET_DATA_ON_DEMAND 0x00000080 /* update data on file_open() */
#define FSET_PERMIT_EXCLUSIVE 0x00000100 /* only one permitholder allowed */
#define FSET_HAS_BRANCHES 0x00000200 /* this fileset contains branches */
#define FSET_IS_BRANCH 0x00000400 /* this fileset is a branch */
#define FSET_FLAT_BRANCH 0x00000800 /* this fileset is ROOT with branches */
/* what to mark indicator (ioctl parameter) */
#define MARK_DENTRY 101
#define MARK_FSET 102
#define MARK_CACHE 103
#define MARK_GETFL 104
/* KML */
#define KML_MAJOR_VERSION 0x00010000
#define KML_MINOR_VERSION 0x00000002
#define KML_OPCODE_NOOP 0
#define KML_OPCODE_CREATE 1
#define KML_OPCODE_MKDIR 2
#define KML_OPCODE_UNLINK 3
#define KML_OPCODE_RMDIR 4
#define KML_OPCODE_CLOSE 5
#define KML_OPCODE_SYMLINK 6
#define KML_OPCODE_RENAME 7
#define KML_OPCODE_SETATTR 8
#define KML_OPCODE_LINK 9
#define KML_OPCODE_OPEN 10
#define KML_OPCODE_MKNOD 11
#define KML_OPCODE_WRITE 12
#define KML_OPCODE_RELEASE 13
#define KML_OPCODE_TRUNC 14
#define KML_OPCODE_SETEXTATTR 15
#define KML_OPCODE_DELEXTATTR 16
#define KML_OPCODE_KML_TRUNC 17
#define KML_OPCODE_GET_FILEID 18
#define KML_OPCODE_NUM 19
/* new stuff */
struct presto_version {
__u64 pv_mtime;
__u64 pv_ctime;
__u64 pv_size;
};
struct kml_prefix_hdr {
__u32 len;
__u32 version;
__u32 pid;
__u32 auid;
__u32 fsuid;
__u32 fsgid;
__u32 opcode;
__u32 ngroups;
};
struct kml_prefix {
struct kml_prefix_hdr *hdr;
__u32 *groups;
};
struct kml_suffix {
__u32 prevrec;
__u32 recno;
__u32 time;
__u32 len;
};
struct kml_rec {
char *buf;
struct kml_prefix prefix;
__u64 offset;
char *path;
int pathlen;
char *name;
int namelen;
char *target;
int targetlen;
struct presto_version *old_objectv;
struct presto_version *new_objectv;
struct presto_version *old_parentv;
struct presto_version *new_parentv;
struct presto_version *old_targetv;
struct presto_version *new_targetv;
__u32 valid;
__u32 mode;
__u32 uid;
__u32 gid;
__u64 size;
__u32 mtime;
__u32 ctime;
__u32 flags;
__u32 ino;
__u32 rdev;
__u32 major;
__u32 minor;
__u32 generation;
__u32 old_mode;
__u32 old_rdev;
__u64 old_uid;
__u64 old_gid;
char *old_target;
int old_targetlen;
struct kml_suffix *suffix;
};
/* RCVD */
/* izo_rcvd_rec fills the .intermezzo/fset/last_rcvd file and provides data about
* our view of reintegration offsets for a given peer.
*
* The only exception is the last_rcvd record which has a UUID consisting of all
* zeroes; this record's lr_local_offset field is the logical byte offset of our
* KML, which is updated when KML truncation takes place. All other fields are
* reserved. */
struct izo_rcvd_rec {
__u8 lr_uuid[16]; /* which peer? */
__u64 lr_remote_recno; /* last confirmed remote recno */
__u64 lr_remote_offset; /* last confirmed remote offset */
__u64 lr_local_recno; /* last locally reinted recno */
__u64 lr_local_offset; /* last locally reinted offset */
__u64 lr_last_ctime; /* the largest ctime that has reintegrated */
};
/* Cache purge database
*
* Each DB entry is this structure followed by the path name, no trailing NUL. */
struct izo_purge_entry {
__u64 p_atime;
__u32 p_pathlen;
};
/* RPC */
#endif
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