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flexnbd: Add some more information to nbdtypes.h

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This commit is contained in:
nick
2013-02-08 17:05:22 +00:00
parent ecfd108a53
commit f63be84d80
2 changed files with 15 additions and 9 deletions
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1
src/nbdtypes.c
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@@ -55,3 +55,4 @@ void nbd_h2r_reply( struct nbd_reply * from, struct nbd_reply_raw * to )
to->error = be32toh( from->error );
memcpy( to->handle, from->handle, 8 );
}

23
src/nbdtypes.h
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@@ -3,13 +3,19 @@
/* http://linux.derkeiler.com/Mailing-Lists/Kernel/2003-09/2332.html */
#define INIT_PASSWD "NBDMAGIC"
#define INIT_MAGIC 0x0000420281861253
#define REQUEST_MAGIC 0x25609513
#define REPLY_MAGIC 0x67446698
#define REQUEST_READ 0
#define REQUEST_WRITE 1
#define REQUEST_DISCONNECT 2
#define INIT_PASSWD "NBDMAGIC"
#define INIT_MAGIC 0x0000420281861253
#define REQUEST_MAGIC 0x25609513
#define REPLY_MAGIC 0x67446698
#define REQUEST_READ 0
#define REQUEST_WRITE 1
#define REQUEST_DISCONNECT 2
/* 1MiB is the de-facto standard for maximum size of header + data */
#define NBD_MAX_SIZE ( 1024 * 1024 )
#define NBD_REQUEST_SIZE ( sizeof( struct nbd_request_raw ) )
#define NBD_REPLY_SIZE ( sizeof( struct nbd_reply_raw ) )
#include <linux/types.h>
#include <inttypes.h>
@@ -51,7 +57,7 @@ struct nbd_init {
struct nbd_request {
uint32_t magic;
uint32_t type; /* == READ || == WRITE */
uint32_t type; /* == READ || == WRITE || == DISCONNECT */
char handle[8];
uint64_t from;
uint32_t len;
@@ -63,7 +69,6 @@ struct nbd_reply {
char handle[8]; /* handle you got from request */
};
void nbd_r2h_init( struct nbd_init_raw * from, struct nbd_init * to );
void nbd_r2h_request( struct nbd_request_raw *from, struct nbd_request * to );
void nbd_r2h_reply( struct nbd_reply_raw * from, struct nbd_reply * to );