9p.h (454d7dc9bc13e46084e0612076e6952c40f4afeb) 9p.h (21cf9edf4f715b1105779236e142be756a086007)
1#ifndef QEMU_9P_H
2#define QEMU_9P_H
3
4#include <dirent.h>
5#include <utime.h>
6#include <sys/resource.h>
7#include "fsdev/file-op-9p.h"
8#include "fsdev/9p-iov-marshal.h"

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112
113/*
114 * ample room for Twrite/Rread header
115 * size[4] Tread/Twrite tag[2] fid[4] offset[8] count[4]
116 */
117#define P9_IOHDRSZ 24
118
119typedef struct V9fsPDU V9fsPDU;
1#ifndef QEMU_9P_H
2#define QEMU_9P_H
3
4#include <dirent.h>
5#include <utime.h>
6#include <sys/resource.h>
7#include "fsdev/file-op-9p.h"
8#include "fsdev/9p-iov-marshal.h"

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112
113/*
114 * ample room for Twrite/Rread header
115 * size[4] Tread/Twrite tag[2] fid[4] offset[8] count[4]
116 */
117#define P9_IOHDRSZ 24
118
119typedef struct V9fsPDU V9fsPDU;
120struct V9fsState;
120typedef struct V9fsState V9fsState;
121
122typedef struct {
123 uint32_t size_le;
124 uint8_t id;
125 uint16_t tag_le;
126} QEMU_PACKED P9MsgHeader;
127/* According to the specification, 9p messages start with a 7-byte header.
128 * Since most of the code uses this header size in literal form, we must be
129 * sure this is indeed the case.
130 */
131QEMU_BUILD_BUG_ON(sizeof(P9MsgHeader) != 7);
132
133struct V9fsPDU
134{
135 uint32_t size;
136 uint16_t tag;
137 uint8_t id;
138 uint8_t cancelled;
139 CoQueue complete;
121
122typedef struct {
123 uint32_t size_le;
124 uint8_t id;
125 uint16_t tag_le;
126} QEMU_PACKED P9MsgHeader;
127/* According to the specification, 9p messages start with a 7-byte header.
128 * Since most of the code uses this header size in literal form, we must be
129 * sure this is indeed the case.
130 */
131QEMU_BUILD_BUG_ON(sizeof(P9MsgHeader) != 7);
132
133struct V9fsPDU
134{
135 uint32_t size;
136 uint16_t tag;
137 uint8_t id;
138 uint8_t cancelled;
139 CoQueue complete;
140 struct V9fsState *s;
140 V9fsState *s;
141 QLIST_ENTRY(V9fsPDU) next;
142 uint32_t idx;
143};
144
145
146/* FIXME
147 * 1) change user needs to set groups and stuff
148 */

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225 int open_flags;
226 uid_t uid;
227 int ref;
228 int clunked;
229 V9fsFidState *next;
230 V9fsFidState *rclm_lst;
231};
232
141 QLIST_ENTRY(V9fsPDU) next;
142 uint32_t idx;
143};
144
145
146/* FIXME
147 * 1) change user needs to set groups and stuff
148 */

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225 int open_flags;
226 uid_t uid;
227 int ref;
228 int clunked;
229 V9fsFidState *next;
230 V9fsFidState *rclm_lst;
231};
232
233typedef struct V9fsState
233struct V9fsState
234{
235 QLIST_HEAD(, V9fsPDU) free_list;
236 QLIST_HEAD(, V9fsPDU) active_list;
237 V9fsFidState *fid_list;
238 FileOperations *ops;
239 FsContext ctx;
240 char *tag;
241 enum p9_proto_version proto_version;

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246 * lock ensuring atomic path update
247 * on rename.
248 */
249 CoRwlock rename_lock;
250 int32_t root_fid;
251 Error *migration_blocker;
252 V9fsConf fsconf;
253 V9fsQID root_qid;
234{
235 QLIST_HEAD(, V9fsPDU) free_list;
236 QLIST_HEAD(, V9fsPDU) active_list;
237 V9fsFidState *fid_list;
238 FileOperations *ops;
239 FsContext ctx;
240 char *tag;
241 enum p9_proto_version proto_version;

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246 * lock ensuring atomic path update
247 * on rename.
248 */
249 CoRwlock rename_lock;
250 int32_t root_fid;
251 Error *migration_blocker;
252 V9fsConf fsconf;
253 V9fsQID root_qid;
254} V9fsState;
254};
255
256/* 9p2000.L open flags */
257#define P9_DOTL_RDONLY 00000000
258#define P9_DOTL_WRONLY 00000001
259#define P9_DOTL_RDWR 00000002
260#define P9_DOTL_NOACCESS 00000003
261#define P9_DOTL_CREATE 00000100
262#define P9_DOTL_EXCL 00000200

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256/* 9p2000.L open flags */
257#define P9_DOTL_RDONLY 00000000
258#define P9_DOTL_WRONLY 00000001
259#define P9_DOTL_RDWR 00000002
260#define P9_DOTL_NOACCESS 00000003
261#define P9_DOTL_CREATE 00000100
262#define P9_DOTL_EXCL 00000200

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