mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
synced 2025-03-09 00:00:00 +01:00
70 lines
2.1 KiB
C++
70 lines
2.1 KiB
C++
/* Node type: socket.
|
|
*
|
|
* Author: Steffen Vogel <post@steffenvogel.de>
|
|
* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <netinet/in.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/types.h>
|
|
#include <sys/un.h>
|
|
|
|
#include <villas/node/config.hpp>
|
|
|
|
#if defined(LIBNL3_ROUTE_FOUND) && defined(__linux__)
|
|
#define WITH_SOCKET_LAYER_ETH
|
|
|
|
#include <linux/if_packet.h>
|
|
#include <netinet/ether.h>
|
|
#endif // LIBNL3_ROUTE_FOUND
|
|
|
|
union sockaddr_union {
|
|
struct sockaddr sa;
|
|
struct sockaddr_storage ss;
|
|
struct sockaddr_in sin;
|
|
struct sockaddr_in6 sin6;
|
|
struct sockaddr_un sun;
|
|
#ifdef WITH_SOCKET_LAYER_ETH
|
|
struct sockaddr_ll sll;
|
|
#endif
|
|
};
|
|
|
|
namespace villas {
|
|
namespace node {
|
|
|
|
enum class SocketLayer { ETH, IP, UDP, UNIX };
|
|
|
|
/* Generate printable socket address depending on the address family
|
|
*
|
|
* A IPv4 address is formatted as dotted decimals followed by the port/protocol number
|
|
* A link layer address is formatted in hexadecimals digits seperated by colons and the inferface name
|
|
*
|
|
* @param sa A pointer to the socket address.
|
|
* @return The buffer containing the textual representation of the address. The caller is responsible to free() this buffer!
|
|
*/
|
|
char *socket_print_addr(struct sockaddr *saddr);
|
|
|
|
/* Parse a socket address depending on the address family
|
|
*
|
|
* A IPv4 address has the follwing format: [hostname/ip]:[port/protocol]
|
|
* A link layer address has the following format: [mac]%[interface]:[ethertype]
|
|
*
|
|
* TODO: Add support for autodetection of address type
|
|
*
|
|
* @param str A string specifiying the socket address. See description for allowed formats.
|
|
* @param sa A pointer to the resolved address
|
|
* @param layer Specifies the address type in which the addr is given
|
|
* @param flags Flags for getaddrinfo(2)
|
|
* @retval 0 Success. Everything went well.
|
|
* @retval <0 Error. Something went wrong.
|
|
*/
|
|
int socket_parse_address(const char *str, struct sockaddr *sa,
|
|
enum SocketLayer layer, int flags);
|
|
|
|
int socket_compare_addr(struct sockaddr *x, struct sockaddr *y);
|
|
|
|
} // namespace node
|
|
} // namespace villas
|