diff options
Diffstat (limited to 'fsdev')
| -rw-r--r-- | fsdev/file-op-9p.h | 36 | ||||
| -rw-r--r-- | fsdev/qemu-fsdev.c | 8 | ||||
| -rw-r--r-- | fsdev/qemu-fsdev.h | 1 |
3 files changed, 30 insertions, 15 deletions
diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h index 908e2a5..1928da2 100644 --- a/fsdev/file-op-9p.h +++ b/fsdev/file-op-9p.h @@ -56,10 +56,12 @@ typedef struct extended_ops { * On failure ignore the error. */ #define V9FS_SM_NONE 0x00000010 - +#define V9FS_RDONLY 0x00000020 #define V9FS_SEC_MASK 0x0000001C + + typedef struct FsContext { uid_t uid; @@ -76,6 +78,8 @@ typedef struct V9fsPath { char *data; } V9fsPath; +typedef union V9fsFidOpenState V9fsFidOpenState; + void cred_init(FsCred *); typedef struct FileOperations @@ -92,22 +96,26 @@ typedef struct FileOperations const char *, FsCred *); int (*link)(FsContext *, V9fsPath *, V9fsPath *, const char *); int (*setuid)(FsContext *, uid_t); - int (*close)(FsContext *, int); - int (*closedir)(FsContext *, DIR *); - DIR *(*opendir)(FsContext *, V9fsPath *); - int (*open)(FsContext *, V9fsPath *, int); - int (*open2)(FsContext *, V9fsPath *, const char *, int, FsCred *); - void (*rewinddir)(FsContext *, DIR *); - off_t (*telldir)(FsContext *, DIR *); - int (*readdir_r)(FsContext *, DIR *, struct dirent *, struct dirent **); - void (*seekdir)(FsContext *, DIR *, off_t); - ssize_t (*preadv)(FsContext *, int, const struct iovec *, int, off_t); - ssize_t (*pwritev)(FsContext *, int, const struct iovec *, int, off_t); + int (*close)(FsContext *, V9fsFidOpenState *); + int (*closedir)(FsContext *, V9fsFidOpenState *); + int (*opendir)(FsContext *, V9fsPath *, V9fsFidOpenState *); + int (*open)(FsContext *, V9fsPath *, int, V9fsFidOpenState *); + int (*open2)(FsContext *, V9fsPath *, const char *, + int, FsCred *, V9fsFidOpenState *); + void (*rewinddir)(FsContext *, V9fsFidOpenState *); + off_t (*telldir)(FsContext *, V9fsFidOpenState *); + int (*readdir_r)(FsContext *, V9fsFidOpenState *, + struct dirent *, struct dirent **); + void (*seekdir)(FsContext *, V9fsFidOpenState *, off_t); + ssize_t (*preadv)(FsContext *, V9fsFidOpenState *, + const struct iovec *, int, off_t); + ssize_t (*pwritev)(FsContext *, V9fsFidOpenState *, + const struct iovec *, int, off_t); int (*mkdir)(FsContext *, V9fsPath *, const char *, FsCred *); - int (*fstat)(FsContext *, int, struct stat *); + int (*fstat)(FsContext *, V9fsFidOpenState *, struct stat *); int (*rename)(FsContext *, const char *, const char *); int (*truncate)(FsContext *, V9fsPath *, off_t); - int (*fsync)(FsContext *, int, int); + int (*fsync)(FsContext *, V9fsFidOpenState *, int); int (*statfs)(FsContext *s, V9fsPath *path, struct statfs *stbuf); ssize_t (*lgetxattr)(FsContext *, V9fsPath *, const char *, void *, size_t); diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c index 5977bcc..7fd2aa7 100644 --- a/fsdev/qemu-fsdev.c +++ b/fsdev/qemu-fsdev.c @@ -24,6 +24,7 @@ static QTAILQ_HEAD(FsDriverEntry_head, FsDriverListEntry) fsdriver_entries = static FsDriverTable FsDrivers[] = { { .name = "local", .ops = &local_ops}, { .name = "handle", .ops = &handle_ops}, + { .name = "synth", .ops = &synth_ops}, }; int qemu_fsdev_add(QemuOpts *opts) @@ -35,7 +36,7 @@ int qemu_fsdev_add(QemuOpts *opts) const char *path = qemu_opt_get(opts, "path"); const char *sec_model = qemu_opt_get(opts, "security_model"); const char *writeout = qemu_opt_get(opts, "writeout"); - + bool ro = qemu_opt_get_bool(opts, "readonly", 0); if (!fsdev_id) { fprintf(stderr, "fsdev: No id specified\n"); @@ -86,6 +87,11 @@ int qemu_fsdev_add(QemuOpts *opts) fsle->fse.export_flags |= V9FS_IMMEDIATE_WRITEOUT; } } + if (ro) { + fsle->fse.export_flags |= V9FS_RDONLY; + } else { + fsle->fse.export_flags &= ~V9FS_RDONLY; + } if (strcmp(fsdriver, "local")) { goto done; diff --git a/fsdev/qemu-fsdev.h b/fsdev/qemu-fsdev.h index 5099085..8ef8473 100644 --- a/fsdev/qemu-fsdev.h +++ b/fsdev/qemu-fsdev.h @@ -53,4 +53,5 @@ int qemu_fsdev_add(QemuOpts *opts); FsDriverEntry *get_fsdev_fsentry(char *id); extern FileOperations local_ops; extern FileOperations handle_ops; +extern FileOperations synth_ops; #endif |