haiku/headers/private/net/net_protocol.h
Ingo Weinhold cdc00dadfc * Added optional {send,read}_data_no_buffer() hooks to the protocol
module interface. They directly operate on iovecs and thus allow
  protocols that don't need it to avoid the creation of a net_buffer.
* Adjusted the socket module to support the new hooks. If they are
  present, they will be chosen over the old hooks.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25299 a95241bf-73f2-0310-859d-f6bbb57e9c96
2008-05-03 01:11:21 +00:00

92 lines
3.1 KiB
C

/*
* Copyright 2006-2008, Haiku, Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef NET_PROTOCOL_H
#define NET_PROTOCOL_H
#include <net_buffer.h>
#include <net_socket.h>
// level flags to pass to control()
#define LEVEL_SET_OPTION 0x10000000
#define LEVEL_GET_OPTION 0x20000000
#define LEVEL_DRIVER_IOCTL 0x0f000000
#define LEVEL_MASK 0x0fffffff
struct ancillary_data_container;
struct ancillary_data_header;
struct iovec;
typedef struct net_protocol {
struct net_protocol *next;
struct net_protocol_module_info *module;
net_socket *socket;
} net_protocol;
// net_protocol_module_info::flags field
#define NET_PROTOCOL_ATOMIC_MESSAGES 0x01
struct net_protocol_module_info {
module_info info;
uint32 flags;
net_protocol *(*init_protocol)(net_socket *socket);
status_t (*uninit_protocol)(net_protocol *self);
status_t (*open)(net_protocol *self);
status_t (*close)(net_protocol *self);
status_t (*free)(net_protocol *self);
status_t (*connect)(net_protocol *self, const struct sockaddr *address);
status_t (*accept)(net_protocol *self, struct net_socket **_acceptedSocket);
status_t (*control)(net_protocol *self, int level, int option, void *value,
size_t *_length);
status_t (*getsockopt)(net_protocol *self, int level, int option,
void *value, int *_length);
status_t (*setsockopt)(net_protocol *self, int level, int option,
const void *value, int length);
status_t (*bind)(net_protocol *self, const struct sockaddr *address);
status_t (*unbind)(net_protocol *self, struct sockaddr *address);
status_t (*listen)(net_protocol *self, int count);
status_t (*shutdown)(net_protocol *self, int direction);
status_t (*send_data)(net_protocol *self, net_buffer *buffer);
status_t (*send_routed_data)(net_protocol *self,
struct net_route *route, net_buffer *buffer);
ssize_t (*send_avail)(net_protocol *self);
status_t (*read_data)(net_protocol *self, size_t numBytes, uint32 flags,
net_buffer **_buffer);
ssize_t (*read_avail)(net_protocol *self);
struct net_domain *(*get_domain)(net_protocol *self);
size_t (*get_mtu)(net_protocol *self, const struct sockaddr *address);
status_t (*receive_data)(net_buffer *data);
status_t (*deliver_data)(net_protocol *protocol, net_buffer *data);
status_t (*error)(uint32 code, net_buffer *data);
status_t (*error_reply)(net_protocol *self, net_buffer *causedError,
uint32 code, void *errorData);
status_t (*add_ancillary_data)(net_protocol *self,
ancillary_data_container *container, const cmsghdr *header);
ssize_t (*process_ancillary_data)(net_protocol *self,
const ancillary_data_header *header, const void *data,
void *buffer, size_t bufferSize);
ssize_t (*send_data_no_buffer)(net_protocol *self, const iovec *vecs,
size_t vecCount, ancillary_data_container *ancillaryData,
const struct sockaddr *address, socklen_t addressLength);
ssize_t (*read_data_no_buffer)(net_protocol *self, const iovec *vecs,
size_t vecCount, ancillary_data_container **_ancillaryData,
struct sockaddr *_address, socklen_t *_addressLength);
};
#endif // NET_PROTOCOL_H