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/*
* Copyright (c) 2005-2019 Red Hat, Inc.
*
* All rights reserved.
*
* Author: Patrick Caulfield (pcaulfie@redhat.com)
*
* This software licensed under BSD license, the text of which follows:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the MontaVista Software, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
/* IPv4/6 abstraction */
#ifndef TOTEMIP_H_DEFINED
#define TOTEMIP_H_DEFINED
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <stdint.h>
#include <qb/qblist.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef SO_NOSIGPIPE
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif
void totemip_nosigpipe(int s);
#else
#define totemip_nosigpipe(s)
#endif
#define TOTEMIP_ADDRLEN (sizeof(struct in6_addr))
/* These are the things that get passed around */
#define TOTEM_IP_ADDRESS
struct totem_ip_address
{
unsigned int nodeid;
unsigned short family;
unsigned char addr[TOTEMIP_ADDRLEN];
unsigned int sin6_scope_id;
} __attribute__((packed));
enum totem_ip_version_enum {
TOTEM_IP_VERSION_4, /* Use only AF_INET */
TOTEM_IP_VERSION_6, /* Use only AF_INET6 */
TOTEM_IP_VERSION_4_6, /* Use AF_UNSPEC and filter result preferring AF_INET */
TOTEM_IP_VERSION_6_4 /* Use AF_UNSPEC and filter result preferring AF_INET6 */
};
struct totem_ip_if_address
{
struct totem_ip_address ip_addr;
struct totem_ip_address mask_addr;
int interface_up;
int interface_num;
char *name;
struct qb_list_head list;
};
extern int totemip_equal(const struct totem_ip_address *addr1,
const struct totem_ip_address *addr2);
extern int totemip_sa_equal(const struct totem_ip_address *totem_ip,
const struct sockaddr *sa);
extern int totemip_compare(const void *a, const void *b);
extern int totemip_is_mcast(struct totem_ip_address *addr);
extern void totemip_copy(struct totem_ip_address *addr1,
const struct totem_ip_address *addr2);
int totemip_localhost(int family, struct totem_ip_address *localhost);
extern int totemip_localhost_check(const struct totem_ip_address *addr);
extern const char *totemip_print(const struct totem_ip_address *addr);
extern const char *totemip_sa_print(const struct sockaddr *sa);
extern int totemip_sockaddr_to_totemip_convert(const struct sockaddr_storage *saddr,
struct totem_ip_address *ip_addr);
extern int totemip_totemip_to_sockaddr_convert(struct totem_ip_address *ip_addr,
uint16_t port, struct sockaddr_storage *saddr, int *addrlen);
extern int totemip_parse(struct totem_ip_address *totemip, const char *addr,
enum totem_ip_version_enum ip_version);
extern int totemip_iface_check(struct totem_ip_address *bindnet,
struct totem_ip_address *boundto,
int *interface_up,
int *interface_num,
int mask_high_bit);
extern int totemip_getifaddrs(struct qb_list_head *addrs);
extern void totemip_freeifaddrs(struct qb_list_head *addrs);
/* These two simulate a zero in_addr by clearing the family field */
static inline void totemip_zero_set(struct totem_ip_address *addr)
{
addr->family = 0;
}
static inline int totemip_zero_check(const struct totem_ip_address *addr)
{
return (addr->family == 0);
}
extern size_t totemip_udpip_header_size(int family);
#ifdef __cplusplus
}
#endif
#endif

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