mirror of
https://review.haiku-os.org/haiku
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258ae0c892
Does not actually break ABI since net_buffer had 3 bytes of padding remaining unused. Add the first two constants for this field: L3/L4_CHECKSUM_VALID. These will indicate when the checksum of the packet is known to be valid (good/correct). Change-Id: I155b3ea51d1093e229677cb788a007560ddbd428 Reviewed-on: https://review.haiku-os.org/c/haiku/+/7916 Reviewed-by: waddlesplash <waddlesplash@gmail.com>
115 lines
3.3 KiB
C
115 lines
3.3 KiB
C
/*
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* Copyright 2006-2010, 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 <sys/socket.h>
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#include <module.h>
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#include <util/list.h>
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#define NET_BUFFER_MODULE_NAME "network/stack/buffer/v1"
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enum net_buffer_flags {
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NET_BUFFER_L3_CHECKSUM_VALID = (1 << 0),
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NET_BUFFER_L4_CHECKSUM_VALID = (1 << 1),
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};
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typedef struct net_buffer {
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struct list_link link;
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struct sockaddr* source;
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struct sockaddr* destination;
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struct net_interface_address* interface_address;
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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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uint32 index;
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int32 type;
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};
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uint32 msg_flags;
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uint32 size;
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uint8 protocol;
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uint16 buffer_flags;
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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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struct ancillary_data_container* container);
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struct 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 (*store_header)(net_buffer* buffer);
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ssize_t (*stored_header_length)(net_buffer* buffer);
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status_t (*restore_header)(net_buffer* buffer, uint32 offset,
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void* data, size_t bytes);
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status_t (*append_restored_header)(net_buffer* buffer,
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net_buffer* source, uint32 offset, size_t bytes);
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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, size_t offset, void* data,
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size_t bytes);
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status_t (*write)(net_buffer* buffer, size_t 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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