X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=nbd.h;h=b38d0d08de2d80bdf545251f8b02921234b973c5;hb=a80f53aee36f177203a2d4e7a046dc0365e42150;hp=eb77cce219acb980f6f1fa07273b519a9655a5c4;hpb=fad6cb1a565bb73f83fc0e2654489457b489e436;p=qemu.git diff --git a/nbd.h b/nbd.h index eb77cce21..b38d0d08d 100644 --- a/nbd.h +++ b/nbd.h @@ -13,30 +13,31 @@ * 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, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA + * along with this program; if not, see . */ #ifndef NBD_H #define NBD_H #include -#include #include + #include "block_int.h" struct nbd_request { + uint32_t magic; uint32_t type; uint64_t handle; uint64_t from; uint32_t len; -}; +} __attribute__ ((__packed__)); struct nbd_reply { + uint32_t magic; uint32_t error; uint64_t handle; -}; +} __attribute__ ((__packed__)); enum { NBD_CMD_READ = 0, @@ -44,20 +45,25 @@ enum { NBD_CMD_DISC = 2 }; +#define NBD_DEFAULT_PORT 10809 + size_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_negotiate(int csock, off_t size); -int nbd_receive_negotiate(int csock, off_t *size, size_t *blocksize); +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, off_t size, size_t blocksize); int nbd_send_request(int csock, struct nbd_request *request); int nbd_receive_reply(int csock, struct nbd_reply *reply); int nbd_trip(BlockDriverState *bs, int csock, off_t size, uint64_t dev_offset, off_t *offset, bool readonly, uint8_t *data, int data_size); -int nbd_client(int fd, int csock); +int nbd_client(int fd); int nbd_disconnect(int fd); #endif