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author | Paolo Bonzini <pbonzini@redhat.com> | 2012-12-17 18:19:44 +0100 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2012-12-19 08:31:31 +0100 |
commit | 737e150e89c44c6b33691a627e24bac7fb58f349 (patch) | |
tree | 6599e1e5a3bd131ba2c18f06d71db71504137b17 /nbd.h | |
parent | 7b1b5d191385ca52e96caae2a05c64f3a63855d9 (diff) | |
download | qemu-737e150e89c44c6b33691a627e24bac7fb58f349.zip qemu-737e150e89c44c6b33691a627e24bac7fb58f349.tar.gz qemu-737e150e89c44c6b33691a627e24bac7fb58f349.tar.bz2 |
block: move include files to include/block/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'nbd.h')
-rw-r--r-- | nbd.h | 100 |
1 files changed, 0 insertions, 100 deletions
@@ -1,100 +0,0 @@ -/* - * Copyright (C) 2005 Anthony Liguori <anthony@codemonkey.ws> - * - * Network Block Device - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; under version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef NBD_H -#define NBD_H - -#include <sys/types.h> - -#include "qemu-common.h" - -struct nbd_request { - uint32_t magic; - uint32_t type; - uint64_t handle; - uint64_t from; - uint32_t len; -} QEMU_PACKED; - -struct nbd_reply { - uint32_t magic; - uint32_t error; - uint64_t handle; -} QEMU_PACKED; - -#define NBD_FLAG_HAS_FLAGS (1 << 0) /* Flags are there */ -#define NBD_FLAG_READ_ONLY (1 << 1) /* Device is read-only */ -#define NBD_FLAG_SEND_FLUSH (1 << 2) /* Send FLUSH */ -#define NBD_FLAG_SEND_FUA (1 << 3) /* Send FUA (Force Unit Access) */ -#define NBD_FLAG_ROTATIONAL (1 << 4) /* Use elevator algorithm - rotational media */ -#define NBD_FLAG_SEND_TRIM (1 << 5) /* Send TRIM (discard) */ - -#define NBD_CMD_MASK_COMMAND 0x0000ffff -#define NBD_CMD_FLAG_FUA (1 << 16) - -enum { - NBD_CMD_READ = 0, - NBD_CMD_WRITE = 1, - NBD_CMD_DISC = 2, - NBD_CMD_FLUSH = 3, - NBD_CMD_TRIM = 4 -}; - -#define NBD_DEFAULT_PORT 10809 - -#define NBD_BUFFER_SIZE (1024*1024) - -ssize_t nbd_wr_sync(int fd, void *buffer, size_t size, bool do_read); -int tcp_socket_outgoing(const char *address, uint16_t port); -int tcp_socket_incoming(const char *address, uint16_t port); -int tcp_socket_outgoing_spec(const char *address_and_port); -int tcp_socket_incoming_spec(const char *address_and_port); -int unix_socket_outgoing(const char *path); -int unix_socket_incoming(const char *path); - -int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags, - off_t *size, size_t *blocksize); -int nbd_init(int fd, int csock, uint32_t flags, off_t size, size_t blocksize); -ssize_t nbd_send_request(int csock, struct nbd_request *request); -ssize_t nbd_receive_reply(int csock, struct nbd_reply *reply); -int nbd_client(int fd); -int nbd_disconnect(int fd); - -typedef struct NBDExport NBDExport; -typedef struct NBDClient NBDClient; - -NBDExport *nbd_export_new(BlockDriverState *bs, off_t dev_offset, - off_t size, uint32_t nbdflags, - void (*close)(NBDExport *)); -void nbd_export_close(NBDExport *exp); -void nbd_export_get(NBDExport *exp); -void nbd_export_put(NBDExport *exp); - -BlockDriverState *nbd_export_get_blockdev(NBDExport *exp); - -NBDExport *nbd_export_find(const char *name); -void nbd_export_set_name(NBDExport *exp, const char *name); -void nbd_export_close_all(void); - -NBDClient *nbd_client_new(NBDExport *exp, int csock, - void (*close)(NBDClient *)); -void nbd_client_close(NBDClient *client); -void nbd_client_get(NBDClient *client); -void nbd_client_put(NBDClient *client); - -#endif |