1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _UAPILINUX_NBD_H 20 #define _UAPILINUX_NBD_H 21 #include <linux/types.h> 22 #define NBD_SET_SOCK _IO(0xab, 0) 23 #define NBD_SET_BLKSIZE _IO(0xab, 1) 24 #define NBD_SET_SIZE _IO(0xab, 2) 25 #define NBD_DO_IT _IO(0xab, 3) 26 #define NBD_CLEAR_SOCK _IO(0xab, 4) 27 #define NBD_CLEAR_QUE _IO(0xab, 5) 28 #define NBD_PRINT_DEBUG _IO(0xab, 6) 29 #define NBD_SET_SIZE_BLOCKS _IO(0xab, 7) 30 #define NBD_DISCONNECT _IO(0xab, 8) 31 #define NBD_SET_TIMEOUT _IO(0xab, 9) 32 #define NBD_SET_FLAGS _IO(0xab, 10) 33 enum { 34 NBD_CMD_READ = 0, 35 NBD_CMD_WRITE = 1, 36 NBD_CMD_DISC = 2, 37 NBD_CMD_FLUSH = 3, 38 NBD_CMD_TRIM = 4 39 }; 40 #define NBD_FLAG_HAS_FLAGS (1 << 0) 41 #define NBD_FLAG_READ_ONLY (1 << 1) 42 #define NBD_FLAG_SEND_FLUSH (1 << 2) 43 #define NBD_FLAG_SEND_FUA (1 << 3) 44 #define NBD_FLAG_SEND_TRIM (1 << 5) 45 #define NBD_FLAG_CAN_MULTI_CONN (1 << 8) 46 #define NBD_CMD_FLAG_FUA (1 << 16) 47 #define NBD_CFLAG_DESTROY_ON_DISCONNECT (1 << 0) 48 #define NBD_REQUEST_MAGIC 0x25609513 49 #define NBD_REPLY_MAGIC 0x67446698 50 struct nbd_request { 51 __be32 magic; 52 __be32 type; 53 char handle[8]; 54 __be64 from; 55 __be32 len; 56 } __attribute__((packed)); 57 struct nbd_reply { 58 __be32 magic; 59 __be32 error; 60 char handle[8]; 61 }; 62 #endif 63