hw/9pfs/9p.h

7 #include "fsdev/file-op-9p.h"
8 #include "fsdev/9p-iov-marshal.h"
87     P9_QTDIR = 0x80,
88     P9_QTAPPEND = 0x40,
89     P9_QTEXCL = 0x20,
90     P9_QTMOUNT = 0x10,
91     P9_QTAUTH = 0x08,
92     P9_QTTMP = 0x04,
93     P9_QTSYMLINK = 0x02,
94     P9_QTLINK = 0x01,
95     P9_QTFILE = 0x00,
99     V9FS_PROTO_2000U = 0x01,
100     V9FS_PROTO_2000L = 0x02,
104  * Minimum message size supported by this 9pfs server.
118 #define FID_REFERENCED          0x1
119 #define FID_NON_RECLAIMABLE     0x2
122     return g_strdup_printf("%s/%s", ctx->fs_root, path);  in rpath()
140 /* According to the specification, 9p messages start with a 7-byte header.
170     P9_FID_NONE = 0,
183 /* 9p2000.L xattr flags (matches Linux values) */
200     /* readdir mutex type used for 9P2000.u protocol variant */
202     /* readdir mutex type used for 9P2000.L protocol variant */
208     if (dir->proto_version == V9FS_PROTO_2000U) {  in v9fs_readdir_lock()
209         qemu_co_mutex_lock(&dir->readdir_mutex_u);  in v9fs_readdir_lock()
211         qemu_mutex_lock(&dir->readdir_mutex_L);  in v9fs_readdir_lock()
217     if (dir->proto_version == V9FS_PROTO_2000U) {  in v9fs_readdir_unlock()
218         qemu_co_mutex_unlock(&dir->readdir_mutex_u);  in v9fs_readdir_unlock()
220         qemu_mutex_unlock(&dir->readdir_mutex_L);  in v9fs_readdir_unlock()
226     dir->proto_version = proto_version;  in v9fs_readdir_init()
228         qemu_co_mutex_init(&dir->readdir_mutex_u);  in v9fs_readdir_init()
230         qemu_mutex_init(&dir->readdir_mutex_L);  in v9fs_readdir_init()
235  * Type for 9p fs drivers' (a.k.a. 9p backends) result of readdir requests,
298  * property of being suffix-free (or prefix-free in case of prefixes)
368 /* 9p2000.L open flags */
389 /* 9p2000.L at flags */
390 #define P9_DOTL_AT_REMOVEDIR         0x200
392 /* 9P2000.L lock type */
393 #define P9_LOCK_TYPE_RDLCK 0
397 #define P9_LOCK_SUCCESS 0
430     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {  in v9fs_path_write_lock()
431         qemu_co_rwlock_wrlock(&s->rename_lock);  in v9fs_path_write_lock()
438     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {  in v9fs_path_read_lock()
439         qemu_co_rwlock_rdlock(&s->rename_lock);  in v9fs_path_read_lock()
446     if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {  in v9fs_path_unlock()
447         qemu_co_rwlock_unlock(&s->rename_lock);  in v9fs_path_unlock()
453     return pdu->cancelled;  in v9fs_request_cancelled()