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/*
* inet6 interface/address list definitions
* Linux INET6 implementation
*
* Authors:
* Pedro Roque <roque@di.fc.ul.pt>
*
*
* 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.
*/
#ifndef _NET_IF_INET6_H
#define _NET_IF_INET6_H
#define IF_RA_RCVD 0x20
#define IF_RS_SENT 0x10
#ifdef __KERNEL__
struct inet6_ifaddr
{
struct in6_addr addr;
__u32 prefix_len;
__u32 valid_lft;
__u32 prefered_lft;
unsigned long tstamp;
atomic_t refcnt;
spinlock_t lock;
__u8 probes;
__u8 flags;
__u16 scope;
struct timer_list timer;
struct inet6_dev *idev;
struct inet6_ifaddr *lst_next; /* next addr in addr_lst */
struct inet6_ifaddr *if_next; /* next addr in inet6_dev */
int dead;
};
struct ipv6_mc_socklist
{
struct in6_addr addr;
int ifindex;
struct ipv6_mc_socklist *next;
};
#define MAF_TIMER_RUNNING 0x01
#define MAF_LAST_REPORTER 0x02
#define MAF_LOADED 0x04
struct ifmcaddr6
{
struct in6_addr mca_addr;
struct inet6_dev *idev;
struct ifmcaddr6 *next;
struct timer_list mca_timer;
unsigned mca_flags;
int mca_users;
atomic_t mca_refcnt;
spinlock_t mca_lock;
};
#define IFA_HOST IPV6_ADDR_LOOPBACK
#define IFA_LINK IPV6_ADDR_LINKLOCAL
#define IFA_SITE IPV6_ADDR_SITELOCAL
#define IFA_GLOBAL 0x0000U
struct ipv6_devconf
{
int forwarding;
int hop_limit;
int mtu6;
int accept_ra;
int accept_redirects;
int autoconf;
int dad_transmits;
int rtr_solicits;
int rtr_solicit_interval;
int rtr_solicit_delay;
void *sysctl;
};
struct inet6_dev
{
struct net_device *dev;
struct inet6_ifaddr *addr_list;
struct ifmcaddr6 *mc_list;
rwlock_t lock;
atomic_t refcnt;
__u32 if_flags;
int dead;
struct neigh_parms *nd_parms;
struct inet6_dev *next;
struct ipv6_devconf cnf;
};
extern struct ipv6_devconf ipv6_devconf;
static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf)
{
/*
* +-------+-------+-------+-------+-------+-------+
* | 33 | 33 | DST13 | DST14 | DST15 | DST16 |
* +-------+-------+-------+-------+-------+-------+
*/
buf[0]= 0x33;
buf[1]= 0x33;
memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
}
static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf)
{
/* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */
if (((addr->s6_addr[0] == 0xFF) &&
((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) &&
(addr->s6_addr16[1] == 0) &&
(addr->s6_addr32[1] == 0) &&
(addr->s6_addr32[2] == 0) &&
(addr->s6_addr16[6] == 0) &&
(addr->s6_addr[15] == 1)) ||
((addr->s6_addr[0] == 0xFF) &&
(addr->s6_addr[1] == 0x02) &&
(addr->s6_addr16[1] == 0) &&
(addr->s6_addr32[1] == 0) &&
(addr->s6_addr16[4] == 0) &&
(addr->s6_addr[10] == 0) &&
(addr->s6_addr[11] == 1) &&
(addr->s6_addr[12] == 0xff)))
{
buf[0]=0xC0;
buf[1]=0x00;
buf[2]=0x01;
buf[3]=0x00;
buf[4]=0x00;
buf[5]=0x00;
/* All routers FF0x::2 */
} else if ((addr->s6_addr[0] ==0xff) &&
((addr->s6_addr[1] & 0xF0) == 0) &&
(addr->s6_addr16[1] == 0) &&
(addr->s6_addr32[1] == 0) &&
(addr->s6_addr32[2] == 0) &&
(addr->s6_addr16[6] == 0) &&
(addr->s6_addr[15] == 2))
{
buf[0]=0xC0;
buf[1]=0x00;
buf[2]=0x02;
buf[3]=0x00;
buf[4]=0x00;
buf[5]=0x00;
} else {
unsigned char i ;
i = addr->s6_addr[15] & 7 ;
buf[0]=0xC0;
buf[1]=0x00;
buf[2]=0x00;
buf[3]=0x01 << i ;
buf[4]=0x00;
buf[5]=0x00;
}
}
#endif
#endif
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