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/*
* include/haproxy/sock.h
* This file contains declarations for native (BSD-compatible) sockets.
*
* Copyright (C) 2000-2020 Willy Tarreau - w@1wt.eu
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _HAPROXY_SOCK_H
#define _HAPROXY_SOCK_H
#include <sys/socket.h>
#include <sys/types.h>
#include <haproxy/api.h>
#include <haproxy/connection-t.h>
#include <haproxy/listener-t.h>
#include <haproxy/sock-t.h>
int sock_create_server_socket(struct connection *conn, struct proxy *be, int *stream_err);
void sock_enable(struct receiver *rx);
void sock_disable(struct receiver *rx);
void sock_unbind(struct receiver *rx);
int sock_get_src(int fd, struct sockaddr *sa, socklen_t salen, int dir);
int sock_get_dst(int fd, struct sockaddr *sa, socklen_t salen, int dir);
int sock_get_old_sockets(const char *unixsocket);
int sock_find_compatible_fd(const struct receiver *rx);
void sock_drop_unused_old_sockets();
int sock_accepting_conn(const struct receiver *rx);
struct connection *sock_accept_conn(struct listener *l, int *status);
void sock_accept_iocb(int fd);
void sock_conn_ctrl_init(struct connection *conn);
void sock_conn_ctrl_close(struct connection *conn);
void sock_conn_iocb(int fd);
int sock_conn_check(struct connection *conn);
int sock_drain(struct connection *conn);
int sock_check_events(struct connection *conn, int event_type);
void sock_ignore_events(struct connection *conn, int event_type);
int _sock_supports_reuseport(const struct proto_fam *fam, int type, int protocol);
/* Sets tos sockopt on socket depending on addr target family */
static inline void sock_set_tos(int fd, struct sockaddr_storage *addr, int tos)
{
#ifdef IP_TOS
if (addr->ss_family == AF_INET)
setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
#endif
#ifdef IPV6_TCLASS
if (addr->ss_family == AF_INET6) {
if (IN6_IS_ADDR_V4MAPPED(&((struct sockaddr_in6 *)addr)->sin6_addr))
/* v4-mapped addresses need IP_TOS */
setsockopt(fd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos));
else
setsockopt(fd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos));
}
#endif
}
/* Sets mark sockopt on socket */
static inline void sock_set_mark(int fd, sa_family_t sock_family, int mark)
{
if ((sock_family == AF_INET) || (sock_family == AF_INET6)) {
#if defined(SO_MARK)
setsockopt(fd, SOL_SOCKET, SO_MARK, &mark, sizeof(mark));
/* FreeBSD */
#elif defined(SO_USER_COOKIE)
setsockopt(fd, SOL_SOCKET, SO_USER_COOKIE, &mark, sizeof(mark));
/* OpenBSD */
#elif defined(SO_RTABLE)
setsockopt(fd, SOL_SOCKET, SO_RTABLE, &mark, sizeof(mark));
#endif
}
}
#endif /* _HAPROXY_SOCK_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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