119 lines
3.8 KiB
C
119 lines
3.8 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_PROTOCOL_H
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#define NET_PROTOCOL_H
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#include <net_buffer.h>
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#include <net_socket.h>
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struct ancillary_data_container;
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struct ancillary_data_header;
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struct iovec;
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typedef struct net_domain net_domain;
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typedef struct net_route net_route;
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// level flags to pass to control()
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#define LEVEL_SET_OPTION 0x10000000
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#define LEVEL_GET_OPTION 0x20000000
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#define LEVEL_DRIVER_IOCTL 0x0f000000
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#define LEVEL_MASK 0x0fffffff
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// Error codes for error_received(), and error_reply()
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enum net_error {
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B_NET_ERROR_REDIRECT_HOST = 1,
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B_NET_ERROR_UNREACH_NET,
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B_NET_ERROR_UNREACH_HOST,
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B_NET_ERROR_UNREACH_PROTOCOL,
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B_NET_ERROR_UNREACH_PORT,
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B_NET_ERROR_MESSAGE_SIZE,
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B_NET_ERROR_TRANSIT_TIME_EXCEEDED,
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B_NET_ERROR_REASSEMBLY_TIME_EXCEEDED,
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B_NET_ERROR_PARAMETER_PROBLEM,
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B_NET_ERROR_QUENCH,
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};
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typedef union net_error_data {
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struct sockaddr_storage gateway;
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uint32 mtu;
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uint32 error_offset;
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} net_error_data;
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typedef struct net_protocol {
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struct net_protocol* next;
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struct net_protocol_module_info* module;
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net_socket* socket;
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} net_protocol;
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// net_protocol_module_info::flags field
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#define NET_PROTOCOL_ATOMIC_MESSAGES 0x01
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struct net_protocol_module_info {
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module_info info;
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uint32 flags;
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net_protocol* (*init_protocol)(net_socket* socket);
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status_t (*uninit_protocol)(net_protocol* self);
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status_t (*open)(net_protocol* self);
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status_t (*close)(net_protocol* self);
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status_t (*free)(net_protocol* self);
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status_t (*connect)(net_protocol* self, const struct sockaddr* address);
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status_t (*accept)(net_protocol* self, net_socket** _acceptedSocket);
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status_t (*control)(net_protocol* self, int level, int option,
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void* value, size_t* _length);
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status_t (*getsockopt)(net_protocol* self, int level, int option,
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void* value, int* _length);
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status_t (*setsockopt)(net_protocol* self, int level, int option,
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const void* value, int length);
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status_t (*bind)(net_protocol* self, const struct sockaddr* address);
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status_t (*unbind)(net_protocol* self, struct sockaddr* address);
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status_t (*listen)(net_protocol* self, int count);
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status_t (*shutdown)(net_protocol* self, int direction);
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status_t (*send_data)(net_protocol* self, net_buffer* buffer);
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status_t (*send_routed_data)(net_protocol* self, net_route* route,
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net_buffer* buffer);
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ssize_t (*send_avail)(net_protocol* self);
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status_t (*read_data)(net_protocol* self, size_t numBytes, uint32 flags,
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net_buffer** _buffer);
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ssize_t (*read_avail)(net_protocol* self);
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net_domain* (*get_domain)(net_protocol* self);
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size_t (*get_mtu)(net_protocol* self, const struct sockaddr* address);
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status_t (*receive_data)(net_buffer* data);
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status_t (*deliver_data)(net_protocol* self, net_buffer* data);
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status_t (*error_received)(net_error error, net_buffer* data);
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status_t (*error_reply)(net_protocol* self, net_buffer* cause,
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net_error error, net_error_data* errorData);
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status_t (*add_ancillary_data)(net_protocol* self,
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ancillary_data_container* container, const cmsghdr* header);
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ssize_t (*process_ancillary_data)(net_protocol* self,
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const ancillary_data_header* header, const void* data,
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void* buffer, size_t bufferSize);
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ssize_t (*process_ancillary_data_no_container)(net_protocol* self,
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net_buffer* buffer, void* data, size_t bufferSize);
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ssize_t (*send_data_no_buffer)(net_protocol* self, const iovec* vecs,
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size_t vecCount, ancillary_data_container* ancillaryData,
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const struct sockaddr* address, socklen_t addressLength);
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ssize_t (*read_data_no_buffer)(net_protocol* self, const iovec* vecs,
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size_t vecCount, ancillary_data_container** _ancillaryData,
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struct sockaddr* _address, socklen_t* _addressLength);
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};
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#endif // NET_PROTOCOL_H
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