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9pfs: break out 9p.h from virtio-9p.h
Move out generic definitions from virtio-9p.h to 9p.h. Fix header inclusions. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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Original file line number | Diff line number | Diff line change |
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* | ||
*/ | ||
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#include "virtio-9p.h" | ||
#include "9p.h" | ||
#include "fsdev/file-op-9p.h" | ||
#include "9p-xattr.h" | ||
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#ifndef _QEMU_9P_H | ||
#define _QEMU_9P_H | ||
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#include <sys/types.h> | ||
#include <dirent.h> | ||
#include <sys/time.h> | ||
#include <utime.h> | ||
#include <sys/resource.h> | ||
#include <glib.h> | ||
#include "standard-headers/linux/virtio_9p.h" | ||
#include "hw/virtio/virtio.h" | ||
#include "fsdev/file-op-9p.h" | ||
#include "fsdev/9p-iov-marshal.h" | ||
#include "qemu/thread.h" | ||
#include "qemu/coroutine.h" | ||
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enum { | ||
P9_TLERROR = 6, | ||
P9_RLERROR, | ||
P9_TSTATFS = 8, | ||
P9_RSTATFS, | ||
P9_TLOPEN = 12, | ||
P9_RLOPEN, | ||
P9_TLCREATE = 14, | ||
P9_RLCREATE, | ||
P9_TSYMLINK = 16, | ||
P9_RSYMLINK, | ||
P9_TMKNOD = 18, | ||
P9_RMKNOD, | ||
P9_TRENAME = 20, | ||
P9_RRENAME, | ||
P9_TREADLINK = 22, | ||
P9_RREADLINK, | ||
P9_TGETATTR = 24, | ||
P9_RGETATTR, | ||
P9_TSETATTR = 26, | ||
P9_RSETATTR, | ||
P9_TXATTRWALK = 30, | ||
P9_RXATTRWALK, | ||
P9_TXATTRCREATE = 32, | ||
P9_RXATTRCREATE, | ||
P9_TREADDIR = 40, | ||
P9_RREADDIR, | ||
P9_TFSYNC = 50, | ||
P9_RFSYNC, | ||
P9_TLOCK = 52, | ||
P9_RLOCK, | ||
P9_TGETLOCK = 54, | ||
P9_RGETLOCK, | ||
P9_TLINK = 70, | ||
P9_RLINK, | ||
P9_TMKDIR = 72, | ||
P9_RMKDIR, | ||
P9_TRENAMEAT = 74, | ||
P9_RRENAMEAT, | ||
P9_TUNLINKAT = 76, | ||
P9_RUNLINKAT, | ||
P9_TVERSION = 100, | ||
P9_RVERSION, | ||
P9_TAUTH = 102, | ||
P9_RAUTH, | ||
P9_TATTACH = 104, | ||
P9_RATTACH, | ||
P9_TERROR = 106, | ||
P9_RERROR, | ||
P9_TFLUSH = 108, | ||
P9_RFLUSH, | ||
P9_TWALK = 110, | ||
P9_RWALK, | ||
P9_TOPEN = 112, | ||
P9_ROPEN, | ||
P9_TCREATE = 114, | ||
P9_RCREATE, | ||
P9_TREAD = 116, | ||
P9_RREAD, | ||
P9_TWRITE = 118, | ||
P9_RWRITE, | ||
P9_TCLUNK = 120, | ||
P9_RCLUNK, | ||
P9_TREMOVE = 122, | ||
P9_RREMOVE, | ||
P9_TSTAT = 124, | ||
P9_RSTAT, | ||
P9_TWSTAT = 126, | ||
P9_RWSTAT, | ||
}; | ||
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/* qid.types */ | ||
enum { | ||
P9_QTDIR = 0x80, | ||
P9_QTAPPEND = 0x40, | ||
P9_QTEXCL = 0x20, | ||
P9_QTMOUNT = 0x10, | ||
P9_QTAUTH = 0x08, | ||
P9_QTTMP = 0x04, | ||
P9_QTSYMLINK = 0x02, | ||
P9_QTLINK = 0x01, | ||
P9_QTFILE = 0x00, | ||
}; | ||
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enum p9_proto_version { | ||
V9FS_PROTO_2000U = 0x01, | ||
V9FS_PROTO_2000L = 0x02, | ||
}; | ||
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#define P9_NOTAG (u16)(~0) | ||
#define P9_NOFID (u32)(~0) | ||
#define P9_MAXWELEM 16 | ||
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#define FID_REFERENCED 0x1 | ||
#define FID_NON_RECLAIMABLE 0x2 | ||
static inline char *rpath(FsContext *ctx, const char *path) | ||
{ | ||
return g_strdup_printf("%s/%s", ctx->fs_root, path); | ||
} | ||
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/* | ||
* ample room for Twrite/Rread header | ||
* size[4] Tread/Twrite tag[2] fid[4] offset[8] count[4] | ||
*/ | ||
#define P9_IOHDRSZ 24 | ||
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typedef struct V9fsPDU V9fsPDU; | ||
struct V9fsState; | ||
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struct V9fsPDU | ||
{ | ||
uint32_t size; | ||
uint16_t tag; | ||
uint8_t id; | ||
uint8_t cancelled; | ||
CoQueue complete; | ||
VirtQueueElement elem; | ||
struct V9fsState *s; | ||
QLIST_ENTRY(V9fsPDU) next; | ||
}; | ||
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/* FIXME | ||
* 1) change user needs to set groups and stuff | ||
*/ | ||
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#define MAX_REQ 128 | ||
#define MAX_TAG_LEN 32 | ||
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#define BUG_ON(cond) assert(!(cond)) | ||
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typedef struct V9fsFidState V9fsFidState; | ||
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enum { | ||
P9_FID_NONE = 0, | ||
P9_FID_FILE, | ||
P9_FID_DIR, | ||
P9_FID_XATTR, | ||
}; | ||
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typedef struct V9fsConf | ||
{ | ||
/* tag name for the device */ | ||
char *tag; | ||
char *fsdev_id; | ||
} V9fsConf; | ||
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typedef struct V9fsXattr | ||
{ | ||
int64_t copied_len; | ||
int64_t len; | ||
void *value; | ||
V9fsString name; | ||
int flags; | ||
} V9fsXattr; | ||
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/* | ||
* Filled by fs driver on open and other | ||
* calls. | ||
*/ | ||
union V9fsFidOpenState { | ||
int fd; | ||
DIR *dir; | ||
V9fsXattr xattr; | ||
/* | ||
* private pointer for fs drivers, that | ||
* have its own internal representation of | ||
* open files. | ||
*/ | ||
void *private; | ||
}; | ||
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struct V9fsFidState | ||
{ | ||
int fid_type; | ||
int32_t fid; | ||
V9fsPath path; | ||
V9fsFidOpenState fs; | ||
V9fsFidOpenState fs_reclaim; | ||
int flags; | ||
int open_flags; | ||
uid_t uid; | ||
int ref; | ||
int clunked; | ||
V9fsFidState *next; | ||
V9fsFidState *rclm_lst; | ||
}; | ||
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typedef struct V9fsState | ||
{ | ||
VirtIODevice parent_obj; | ||
VirtQueue *vq; | ||
V9fsPDU pdus[MAX_REQ]; | ||
QLIST_HEAD(, V9fsPDU) free_list; | ||
QLIST_HEAD(, V9fsPDU) active_list; | ||
V9fsFidState *fid_list; | ||
FileOperations *ops; | ||
FsContext ctx; | ||
char *tag; | ||
size_t config_size; | ||
enum p9_proto_version proto_version; | ||
int32_t msize; | ||
/* | ||
* lock ensuring atomic path update | ||
* on rename. | ||
*/ | ||
CoRwlock rename_lock; | ||
int32_t root_fid; | ||
Error *migration_blocker; | ||
V9fsConf fsconf; | ||
} V9fsState; | ||
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/* 9p2000.L open flags */ | ||
#define P9_DOTL_RDONLY 00000000 | ||
#define P9_DOTL_WRONLY 00000001 | ||
#define P9_DOTL_RDWR 00000002 | ||
#define P9_DOTL_NOACCESS 00000003 | ||
#define P9_DOTL_CREATE 00000100 | ||
#define P9_DOTL_EXCL 00000200 | ||
#define P9_DOTL_NOCTTY 00000400 | ||
#define P9_DOTL_TRUNC 00001000 | ||
#define P9_DOTL_APPEND 00002000 | ||
#define P9_DOTL_NONBLOCK 00004000 | ||
#define P9_DOTL_DSYNC 00010000 | ||
#define P9_DOTL_FASYNC 00020000 | ||
#define P9_DOTL_DIRECT 00040000 | ||
#define P9_DOTL_LARGEFILE 00100000 | ||
#define P9_DOTL_DIRECTORY 00200000 | ||
#define P9_DOTL_NOFOLLOW 00400000 | ||
#define P9_DOTL_NOATIME 01000000 | ||
#define P9_DOTL_CLOEXEC 02000000 | ||
#define P9_DOTL_SYNC 04000000 | ||
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/* 9p2000.L at flags */ | ||
#define P9_DOTL_AT_REMOVEDIR 0x200 | ||
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/* 9P2000.L lock type */ | ||
#define P9_LOCK_TYPE_RDLCK 0 | ||
#define P9_LOCK_TYPE_WRLCK 1 | ||
#define P9_LOCK_TYPE_UNLCK 2 | ||
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#define P9_LOCK_SUCCESS 0 | ||
#define P9_LOCK_BLOCKED 1 | ||
#define P9_LOCK_ERROR 2 | ||
#define P9_LOCK_GRACE 3 | ||
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#define P9_LOCK_FLAGS_BLOCK 1 | ||
#define P9_LOCK_FLAGS_RECLAIM 2 | ||
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typedef struct V9fsFlock | ||
{ | ||
uint8_t type; | ||
uint32_t flags; | ||
uint64_t start; /* absolute offset */ | ||
uint64_t length; | ||
uint32_t proc_id; | ||
V9fsString client_id; | ||
} V9fsFlock; | ||
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typedef struct V9fsGetlock | ||
{ | ||
uint8_t type; | ||
uint64_t start; /* absolute offset */ | ||
uint64_t length; | ||
uint32_t proc_id; | ||
V9fsString client_id; | ||
} V9fsGetlock; | ||
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extern int open_fd_hw; | ||
extern int total_open_fd; | ||
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static inline void v9fs_path_write_lock(V9fsState *s) | ||
{ | ||
if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) { | ||
qemu_co_rwlock_wrlock(&s->rename_lock); | ||
} | ||
} | ||
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static inline void v9fs_path_read_lock(V9fsState *s) | ||
{ | ||
if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) { | ||
qemu_co_rwlock_rdlock(&s->rename_lock); | ||
} | ||
} | ||
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static inline void v9fs_path_unlock(V9fsState *s) | ||
{ | ||
if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) { | ||
qemu_co_rwlock_unlock(&s->rename_lock); | ||
} | ||
} | ||
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static inline uint8_t v9fs_request_cancelled(V9fsPDU *pdu) | ||
{ | ||
return pdu->cancelled; | ||
} | ||
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extern void v9fs_reclaim_fd(V9fsPDU *pdu); | ||
extern void v9fs_path_init(V9fsPath *path); | ||
extern void v9fs_path_free(V9fsPath *path); | ||
extern void v9fs_path_copy(V9fsPath *lhs, V9fsPath *rhs); | ||
extern int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath, | ||
const char *name, V9fsPath *path); | ||
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ssize_t pdu_marshal(V9fsPDU *pdu, size_t offset, const char *fmt, ...); | ||
ssize_t pdu_unmarshal(V9fsPDU *pdu, size_t offset, const char *fmt, ...); | ||
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#endif |
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