49e00d1f99
module to the stack module. There's a dedicated struct ancillary_data_container, now. One can just set the container on a net_buffer. git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25292 a95241bf-73f2-0310-859d-f6bbb57e9c96
100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/*
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* Copyright 2006, Haiku, Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef NET_BUFFER_H
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#define NET_BUFFER_H
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#include <util/list.h>
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#include <module.h>
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#include <sys/socket.h>
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#define NET_BUFFER_MODULE_NAME "network/stack/buffer/v1"
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typedef struct net_buffer {
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struct list_link link;
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// TODO: we should think about moving the address fields into the buffer data itself
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// via associated data or something like this. Or this structure as a whole, too...
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struct sockaddr *source;
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struct sockaddr *destination;
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struct net_interface *interface;
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int32 type;
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union {
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struct {
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uint16 start;
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uint16 end;
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} fragment;
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uint32 sequence;
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uint32 offset;
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};
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uint32 flags;
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uint32 size;
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uint8 protocol;
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} net_buffer;
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struct ancillary_data_container;
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struct net_buffer_module_info {
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module_info info;
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net_buffer * (*create)(size_t headerSpace);
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void (*free)(net_buffer *buffer);
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net_buffer * (*duplicate)(net_buffer *from);
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net_buffer * (*clone)(net_buffer *from, bool shareFreeSpace);
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net_buffer * (*split)(net_buffer *from, uint32 offset);
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status_t (*merge)(net_buffer *buffer, net_buffer *with, bool after);
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status_t (*prepend_size)(net_buffer *buffer, size_t size,
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void **_contiguousBuffer);
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status_t (*prepend)(net_buffer *buffer, const void *data,
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size_t bytes);
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status_t (*append_size)(net_buffer *buffer, size_t size,
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void **_contiguousBuffer);
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status_t (*append)(net_buffer *buffer, const void *data,
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size_t bytes);
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status_t (*insert)(net_buffer *buffer, uint32 offset,
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const void *data, size_t bytes, uint32 flags);
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status_t (*remove)(net_buffer *buffer, uint32 offset,
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size_t bytes);
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status_t (*remove_header)(net_buffer *buffer, size_t bytes);
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status_t (*remove_trailer)(net_buffer *buffer, size_t bytes);
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status_t (*trim)(net_buffer *buffer, size_t newSize);
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status_t (*append_cloned)(net_buffer *buffer, net_buffer *source,
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uint32 offset, size_t bytes);
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status_t (*associate_data)(net_buffer *buffer, void *data);
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void (*set_ancillary_data)(net_buffer *buffer,
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ancillary_data_container *container);
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ancillary_data_container* (*get_ancillary_data)(net_buffer *buffer);
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void * (*transfer_ancillary_data)(net_buffer *from,
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net_buffer *to);
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status_t (*direct_access)(net_buffer *buffer, uint32 offset,
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size_t bytes, void **_data);
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status_t (*read)(net_buffer *buffer, uint32 offset, void *data,
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size_t bytes);
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status_t (*write)(net_buffer *buffer, uint32 offset,
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const void *data, size_t bytes);
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int32 (*checksum)(net_buffer *buffer, uint32 offset, size_t bytes,
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bool finalize);
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status_t (*get_memory_map)(net_buffer *buffer,
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struct iovec *iovecs, uint32 vecCount);
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uint32 (*get_iovecs)(net_buffer *buffer,
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struct iovec *iovecs, uint32 vecCount);
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uint32 (*count_iovecs)(net_buffer *buffer);
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void (*swap_addresses)(net_buffer *buffer);
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void (*dump)(net_buffer *buffer);
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};
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#endif // NET_BUFFER_H
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