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/*
* iface.h - Network interface configuration API
*
* Copyright (C) 2006, 2007, 2008 Red Hat, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author(s): David Cantrell <dcantrell@redhat.com>
*/
#ifndef ISYSIFACE_H
#define ISYSIFACE_H
#include <resolv.h>
#include <net/if.h>
#include <netlink/cache.h>
#include <netlink/socket.h>
/* Enumerated types used in iface.c as well as loader's network code */
enum { IPUNUSED, IPV4, IPV6 };
enum { IPV4_UNUSED_METHOD, IPV4_DHCP_METHOD, IPV4_MANUAL_METHOD };
enum { IPV6_UNUSED_METHOD, IPV6_AUTO_METHOD, IPV6_DHCP_METHOD,
IPV6_MANUAL_METHOD };
#define IPV4_FIRST_METHOD IPV4_DHCP_METHOD
#define IPV4_LAST_METHOD IPV4_MANUAL_METHOD
#define IPV6_FIRST_METHOD IPV6_AUTO_METHOD
#define IPV6_LAST_METHOD IPV6_MANUAL_METHOD
/* Flags for the iface_t */
#define IFACE_FLAGS_NO_WRITE_RESOLV_CONF (((uint64_t) 1) << 0)
/* FIXME: do we need these? */
#define IFACE_FLAGS_IS_PRESET (((uint64_t) 1) << 1)
#define IFACE_FLAGS_IS_DYNAMIC (((uint64_t) 1) << 2)
#define IFACE_NO_WRITE_RESOLV_CONF(a) ((a) & IFACE_FLAGS_NO_WRITE_RESOLV_CONF)
#define IFACE_IS_PRESET(a) ((a) & IFACE_FLAGS_IS_PRESET)
#define IFACE_IS_DYNAMIC(a) ((a) & IFACE_FLAGS_IS_DYNAMIC)
/* Macros for starting NetworkManager */
#define NETWORKMANAGER "/usr/sbin/NetworkManager"
#define OUTPUT_TERMINAL "/dev/tty5"
/* Per-interface configuration information */
typedef struct _iface_t {
/* device name (e.g., eth0) */
char device[IF_NAMESIZE];
/* MAC address as xx:xx:xx:xx:xx:xx */
char *macaddr;
/* IPv4 (store addresses in in_addr format, use inet_pton() to display) */
struct in_addr ipaddr;
struct in_addr netmask;
struct in_addr broadcast;
/* IPv6 (store addresses in in6_addr format, prefix is just an int) */
struct in6_addr ip6addr;
int ip6prefix;
/* Gateway settings */
struct in_addr gateway;
struct in6_addr gateway6;
/* BOOTP (these can be IPv4 or IPv6, store human-readable version as str) */
char *nextserver;
char *bootfile;
/* DNS (these can be IPv4 or IPv6, store human-readable version as str) */
char *dns[MAXNS];
int numdns;
char *hostname;
char *domain;
char *search;
/* Misc DHCP settings */
int dhcptimeout;
char *vendorclass;
/* Wireless settings */
char *ssid;
char *wepkey;
/* s390 specifics */
int mtu;
char *subchannels;
char *portname;
char *peerid;
char *nettype;
char *ctcprot;
/* flags */
uint64_t flags;
int ipv4method;
int ipv6method;
} iface_t;
/* Function prototypes */
/*
* Given an interface name (e.g., eth0) and address family (e.g., AF_INET),
* return the IP address in human readable format (i.e., the output from
* inet_ntop()). Return NULL for no match or error.
*/
char *iface_ip2str(char *, int);
/*
* Given an interface name (e.g., eth0), return the MAC address in human
* readable format (e.g., 00:11:52:12:D9:A0). Return NULL for no match.
*/
char *iface_mac2str(char *);
/*
* Convert an IPv4 CIDR prefix to a dotted-quad netmask. Return NULL on
* failure.
*/
struct in_addr *iface_prefix2netmask(int);
/*
* Convert an IPv4 netmask to an IPv4 CIDR prefix. Return -1 on failure.
*/
int iface_netmask2prefix(struct in_addr *);
/*
* Initialize a new iface_t structure to default values.
*/
void iface_init_iface_t(iface_t *);
/*
* Given a pointer to a struct in_addr, return 1 if it contains a valid
* address, 0 otherwise.
*/
int iface_have_in_addr(struct in_addr *addr);
/*
* Given a pointer to a struct in6_addr, return 1 if it contains a valid
* address, 0 otherwise.
*/
int iface_have_in6_addr(struct in6_addr *addr6);
/*
* Start NetworkManager
*/
int iface_start_NetworkManager(iface_t *iface);
/*
* Set Maximum Transfer Unit (MTU) on specified interface
*/
int iface_set_interface_mtu(char *ifname, int mtu);
#endif /* ISYSIFACE_H */
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