mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
287 lines
6.3 KiB
C
287 lines
6.3 KiB
C
/*
|
|
* 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
|
|
|
|
#include <net/snmp.h>
|
|
#include <linux/ipv6.h>
|
|
|
|
/* inet6_dev.if_flags */
|
|
|
|
#define IF_RA_OTHERCONF 0x80
|
|
#define IF_RA_MANAGED 0x40
|
|
#define IF_RA_RCVD 0x20
|
|
#define IF_RS_SENT 0x10
|
|
#define IF_READY 0x80000000
|
|
|
|
/* prefix flags */
|
|
#define IF_PREFIX_ONLINK 0x01
|
|
#define IF_PREFIX_AUTOCONF 0x02
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
struct inet6_ifaddr
|
|
{
|
|
struct in6_addr addr;
|
|
__u32 prefix_len;
|
|
|
|
__u32 valid_lft;
|
|
__u32 prefered_lft;
|
|
unsigned long cstamp; /* created timestamp */
|
|
unsigned long tstamp; /* updated timestamp */
|
|
atomic_t refcnt;
|
|
spinlock_t lock;
|
|
|
|
__u8 probes;
|
|
__u8 flags;
|
|
|
|
__u16 scope;
|
|
|
|
struct timer_list timer;
|
|
|
|
struct inet6_dev *idev;
|
|
struct rt6_info *rt;
|
|
|
|
struct inet6_ifaddr *lst_next; /* next addr in addr_lst */
|
|
struct inet6_ifaddr *if_next; /* next addr in inet6_dev */
|
|
|
|
#ifdef CONFIG_IPV6_PRIVACY
|
|
struct inet6_ifaddr *tmp_next; /* next addr in tempaddr_lst */
|
|
struct inet6_ifaddr *ifpub;
|
|
int regen_count;
|
|
#endif
|
|
|
|
int dead;
|
|
};
|
|
|
|
struct ip6_sf_socklist
|
|
{
|
|
unsigned int sl_max;
|
|
unsigned int sl_count;
|
|
struct in6_addr sl_addr[0];
|
|
};
|
|
|
|
#define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \
|
|
(count) * sizeof(struct in6_addr))
|
|
|
|
#define IP6_SFBLOCK 10 /* allocate this many at once */
|
|
|
|
struct ipv6_mc_socklist
|
|
{
|
|
struct in6_addr addr;
|
|
int ifindex;
|
|
struct ipv6_mc_socklist *next;
|
|
rwlock_t sflock;
|
|
unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */
|
|
struct ip6_sf_socklist *sflist;
|
|
};
|
|
|
|
struct ip6_sf_list
|
|
{
|
|
struct ip6_sf_list *sf_next;
|
|
struct in6_addr sf_addr;
|
|
unsigned long sf_count[2]; /* include/exclude counts */
|
|
unsigned char sf_gsresp; /* include in g & s response? */
|
|
unsigned char sf_oldin; /* change state */
|
|
unsigned char sf_crcount; /* retrans. left to send */
|
|
};
|
|
|
|
#define MAF_TIMER_RUNNING 0x01
|
|
#define MAF_LAST_REPORTER 0x02
|
|
#define MAF_LOADED 0x04
|
|
#define MAF_NOREPORT 0x08
|
|
#define MAF_GSQUERY 0x10
|
|
|
|
struct ifmcaddr6
|
|
{
|
|
struct in6_addr mca_addr;
|
|
struct inet6_dev *idev;
|
|
struct ifmcaddr6 *next;
|
|
struct ip6_sf_list *mca_sources;
|
|
struct ip6_sf_list *mca_tomb;
|
|
unsigned int mca_sfmode;
|
|
unsigned long mca_sfcount[2];
|
|
struct timer_list mca_timer;
|
|
unsigned mca_flags;
|
|
int mca_users;
|
|
atomic_t mca_refcnt;
|
|
spinlock_t mca_lock;
|
|
unsigned char mca_crcount;
|
|
unsigned long mca_cstamp;
|
|
unsigned long mca_tstamp;
|
|
};
|
|
|
|
/* Anycast stuff */
|
|
|
|
struct ipv6_ac_socklist
|
|
{
|
|
struct in6_addr acl_addr;
|
|
int acl_ifindex;
|
|
struct ipv6_ac_socklist *acl_next;
|
|
};
|
|
|
|
struct ifacaddr6
|
|
{
|
|
struct in6_addr aca_addr;
|
|
struct inet6_dev *aca_idev;
|
|
struct rt6_info *aca_rt;
|
|
struct ifacaddr6 *aca_next;
|
|
int aca_users;
|
|
atomic_t aca_refcnt;
|
|
spinlock_t aca_lock;
|
|
unsigned long aca_cstamp;
|
|
unsigned long aca_tstamp;
|
|
};
|
|
|
|
#define IFA_HOST IPV6_ADDR_LOOPBACK
|
|
#define IFA_LINK IPV6_ADDR_LINKLOCAL
|
|
#define IFA_SITE IPV6_ADDR_SITELOCAL
|
|
#define IFA_GLOBAL 0x0000U
|
|
|
|
struct ipv6_devstat {
|
|
struct proc_dir_entry *proc_dir_entry;
|
|
DEFINE_SNMP_STAT(struct ipstats_mib, ipv6);
|
|
DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6);
|
|
};
|
|
|
|
struct inet6_dev
|
|
{
|
|
struct net_device *dev;
|
|
|
|
struct inet6_ifaddr *addr_list;
|
|
|
|
struct ifmcaddr6 *mc_list;
|
|
struct ifmcaddr6 *mc_tomb;
|
|
rwlock_t mc_lock;
|
|
unsigned long mc_v1_seen;
|
|
unsigned long mc_maxdelay;
|
|
unsigned char mc_qrv;
|
|
unsigned char mc_gq_running;
|
|
unsigned char mc_ifc_count;
|
|
struct timer_list mc_gq_timer; /* general query timer */
|
|
struct timer_list mc_ifc_timer; /* interface change timer */
|
|
|
|
struct ifacaddr6 *ac_list;
|
|
rwlock_t lock;
|
|
atomic_t refcnt;
|
|
__u32 if_flags;
|
|
int dead;
|
|
|
|
#ifdef CONFIG_IPV6_PRIVACY
|
|
u8 rndid[8];
|
|
struct timer_list regen_timer;
|
|
struct inet6_ifaddr *tempaddr_list;
|
|
#endif
|
|
|
|
struct neigh_parms *nd_parms;
|
|
struct inet6_dev *next;
|
|
struct ipv6_devconf cnf;
|
|
struct ipv6_devstat stats;
|
|
unsigned long tstamp; /* ipv6InterfaceTable update timestamp */
|
|
struct rcu_head rcu;
|
|
};
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf)
|
|
{
|
|
buf[0] = 0x00;
|
|
}
|
|
|
|
static inline void ipv6_ib_mc_map(struct in6_addr *addr, char *buf)
|
|
{
|
|
buf[0] = 0; /* Reserved */
|
|
buf[1] = 0xff; /* Multicast QPN */
|
|
buf[2] = 0xff;
|
|
buf[3] = 0xff;
|
|
buf[4] = 0xff;
|
|
buf[5] = 0x12; /* link local scope */
|
|
buf[6] = 0x60; /* IPv6 signature */
|
|
buf[7] = 0x1b;
|
|
buf[8] = 0; /* P_Key */
|
|
buf[9] = 0;
|
|
memcpy(buf + 10, addr->s6_addr + 6, 10);
|
|
}
|
|
#endif
|
|
#endif
|