diff options
Diffstat (limited to 'include/linux/nbd.h')
| -rw-r--r-- | include/linux/nbd.h | 58 |
1 files changed, 1 insertions, 57 deletions
diff --git a/include/linux/nbd.h b/include/linux/nbd.h index d146ca10c0f5..4871170a04a0 100644 --- a/include/linux/nbd.h +++ b/include/linux/nbd.h | |||
| @@ -11,40 +11,13 @@ | |||
| 11 | * 2004/02/19 Paul Clements | 11 | * 2004/02/19 Paul Clements |
| 12 | * Removed PARANOIA, plus various cleanup and comments | 12 | * Removed PARANOIA, plus various cleanup and comments |
| 13 | */ | 13 | */ |
| 14 | |||
| 15 | #ifndef LINUX_NBD_H | 14 | #ifndef LINUX_NBD_H |
| 16 | #define LINUX_NBD_H | 15 | #define LINUX_NBD_H |
| 17 | 16 | ||
| 18 | #include <linux/types.h> | ||
| 19 | |||
| 20 | #define NBD_SET_SOCK _IO( 0xab, 0 ) | ||
| 21 | #define NBD_SET_BLKSIZE _IO( 0xab, 1 ) | ||
| 22 | #define NBD_SET_SIZE _IO( 0xab, 2 ) | ||
| 23 | #define NBD_DO_IT _IO( 0xab, 3 ) | ||
| 24 | #define NBD_CLEAR_SOCK _IO( 0xab, 4 ) | ||
| 25 | #define NBD_CLEAR_QUE _IO( 0xab, 5 ) | ||
| 26 | #define NBD_PRINT_DEBUG _IO( 0xab, 6 ) | ||
| 27 | #define NBD_SET_SIZE_BLOCKS _IO( 0xab, 7 ) | ||
| 28 | #define NBD_DISCONNECT _IO( 0xab, 8 ) | ||
| 29 | #define NBD_SET_TIMEOUT _IO( 0xab, 9 ) | ||
| 30 | |||
| 31 | enum { | ||
| 32 | NBD_CMD_READ = 0, | ||
| 33 | NBD_CMD_WRITE = 1, | ||
| 34 | NBD_CMD_DISC = 2 | ||
| 35 | }; | ||
| 36 | |||
| 37 | #define nbd_cmd(req) ((req)->cmd[0]) | ||
| 38 | |||
| 39 | /* userspace doesn't need the nbd_device structure */ | ||
| 40 | #ifdef __KERNEL__ | ||
| 41 | 17 | ||
| 42 | #include <linux/wait.h> | 18 | #include <linux/wait.h> |
| 43 | #include <linux/mutex.h> | 19 | #include <linux/mutex.h> |
| 44 | 20 | #include <uapi/linux/nbd.h> | |
| 45 | /* values for flags field */ | ||
| 46 | #define NBD_READ_ONLY 0x0001 | ||
| 47 | #define NBD_WRITE_NOCHK 0x0002 | ||
| 48 | 21 | ||
| 49 | struct request; | 22 | struct request; |
| 50 | 23 | ||
| @@ -71,32 +44,3 @@ struct nbd_device { | |||
| 71 | }; | 44 | }; |
| 72 | 45 | ||
| 73 | #endif | 46 | #endif |
| 74 | |||
| 75 | /* These are sent over the network in the request/reply magic fields */ | ||
| 76 | |||
| 77 | #define NBD_REQUEST_MAGIC 0x25609513 | ||
| 78 | #define NBD_REPLY_MAGIC 0x67446698 | ||
| 79 | /* Do *not* use magics: 0x12560953 0x96744668. */ | ||
| 80 | |||
| 81 | /* | ||
| 82 | * This is the packet used for communication between client and | ||
| 83 | * server. All data are in network byte order. | ||
| 84 | */ | ||
| 85 | struct nbd_request { | ||
| 86 | __be32 magic; | ||
| 87 | __be32 type; /* == READ || == WRITE */ | ||
| 88 | char handle[8]; | ||
| 89 | __be64 from; | ||
| 90 | __be32 len; | ||
| 91 | } __attribute__((packed)); | ||
| 92 | |||
| 93 | /* | ||
| 94 | * This is the reply packet that nbd-server sends back to the client after | ||
| 95 | * it has completed an I/O request (or an error occurs). | ||
| 96 | */ | ||
| 97 | struct nbd_reply { | ||
| 98 | __be32 magic; | ||
| 99 | __be32 error; /* 0 = ok, else error */ | ||
| 100 | char handle[8]; /* handle you got from request */ | ||
| 101 | }; | ||
| 102 | #endif | ||
