diff options
| author | Michael Brown | 2007-06-11 16:04:39 +0200 |
|---|---|---|
| committer | Michael Brown | 2007-06-11 16:04:39 +0200 |
| commit | 95adce0ce15b7e7b226f3d1162a7330e36ad76c8 (patch) | |
| tree | e8a2690e21282afc2595411ee3f5f1b917a3edc8 /src/include/gpxe | |
| parent | Merge branch 'master' into mcb-tcp-xfer (diff) | |
| download | ipxe-95adce0ce15b7e7b226f3d1162a7330e36ad76c8.tar.gz ipxe-95adce0ce15b7e7b226f3d1162a7330e36ad76c8.tar.xz ipxe-95adce0ce15b7e7b226f3d1162a7330e36ad76c8.zip | |
Add concept of transfer metadata, to be used by UDP in order to
implement sendto()/recvfrom() equivalents.
Diffstat (limited to 'src/include/gpxe')
| -rw-r--r-- | src/include/gpxe/xfer.h | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/src/include/gpxe/xfer.h b/src/include/gpxe/xfer.h index f946ab1c1..0224613bf 100644 --- a/src/include/gpxe/xfer.h +++ b/src/include/gpxe/xfer.h @@ -13,6 +13,7 @@ #include <gpxe/iobuf.h> struct xfer_interface; +struct xfer_metadata; /** Data transfer interface operations */ struct xfer_interface_operations { @@ -63,10 +64,11 @@ struct xfer_interface_operations { */ struct io_buffer * ( * alloc_iob ) ( struct xfer_interface *xfer, size_t len ); - /** Deliver datagram as I/O buffer + /** Deliver datagram as I/O buffer with metadata * * @v xfer Data transfer interface * @v iobuf Datagram I/O buffer + * @v meta Data transfer metadata, or NULL * @ret rc Return status code * * A data transfer interface that wishes to support only raw @@ -78,7 +80,8 @@ struct xfer_interface_operations { * fatal error. */ int ( * deliver_iob ) ( struct xfer_interface *xfer, - struct io_buffer *iobuf ); + struct io_buffer *iobuf, + struct xfer_metadata *meta ); /** Deliver datagram as raw data * * @v xfer Data transfer interface @@ -106,6 +109,14 @@ struct xfer_interface { struct xfer_interface_operations *op; }; +/** Data transfer metadata */ +struct xfer_metadata { + /** Source socket address, or NULL */ + struct sockaddr *src; + /** Destination socket address, or NULL */ + struct sockaddr *dest; +}; + /** Basis positions for seek() events */ enum seek_whence { SEEK_SET = 0, @@ -141,6 +152,9 @@ extern struct io_buffer * xfer_alloc_iob ( struct xfer_interface *xfer, size_t len ); extern int xfer_deliver_iob ( struct xfer_interface *xfer, struct io_buffer *iobuf ); +extern int xfer_deliver_iob_meta ( struct xfer_interface *xfer, + struct io_buffer *iobuf, + struct xfer_metadata *meta ); extern int xfer_deliver_raw ( struct xfer_interface *xfer, const void *data, size_t len ); extern int xfer_vprintf ( struct xfer_interface *xfer, @@ -158,7 +172,8 @@ extern int ignore_xfer_seek ( struct xfer_interface *xfer, off_t offset, extern struct io_buffer * default_xfer_alloc_iob ( struct xfer_interface *xfer, size_t len ); extern int xfer_deliver_as_raw ( struct xfer_interface *xfer, - struct io_buffer *iobuf ); + struct io_buffer *iobuf, + struct xfer_metadata *meta ); extern int xfer_deliver_as_iob ( struct xfer_interface *xfer, const void *data, size_t len ); extern int ignore_xfer_deliver_raw ( struct xfer_interface *xfer, |