i386/linux/linux-2.3.21/include/net/if_inet6.h

   1 /*
   2  *      inet6 interface/address list definitions
   3  *      Linux INET6 implementation
   4  *
   5  *      Authors:
   6  *      Pedro Roque             <roque@di.fc.ul.pt>
   7  *
   8  *
   9  *      This program is free software; you can redistribute it and/or
  10  *      modify it under the terms of the GNU General Public License
  11  *      as published by the Free Software Foundation; either version
  12  *      2 of the License, or (at your option) any later version.
  13  */
  14
  15 #ifndef _NET_IF_INET6_H
  16 #define _NET_IF_INET6_H
  17
  18 #define IF_RA_RCVD      0x20
  19 #define IF_RS_SENT      0x10
  20
  21 #ifdef __KERNEL__
  22
  23 struct inet6_ifaddr
  24 {
  25         struct in6_addr         addr;
  26         __u32                   prefix_len;
  27
  28         __u32                   valid_lft;
  29         __u32                   prefered_lft;
  30         unsigned long           tstamp;
  31         atomic_t                refcnt;
  32         spinlock_t              lock;
  33
  34         __u8                    probes;
  35         __u8                    flags;
  36
  37         __u16                   scope;
  38
  39         struct timer_list       timer;
  40
  41         struct inet6_dev        *idev;
  42
  43         struct inet6_ifaddr     *lst_next;      /* next addr in addr_lst */
  44         struct inet6_ifaddr     *if_next;       /* next addr in inet6_dev */
  45
  46         int                     dead;
  47 };
  48
  49 struct ipv6_mc_socklist
  50 {
  51         struct in6_addr         addr;
  52         int                     ifindex;
  53         struct ipv6_mc_socklist *next;
  54 };
  55
  56 #define MAF_TIMER_RUNNING       0x01
  57 #define MAF_LAST_REPORTER       0x02
  58 #define MAF_LOADED              0x04
  59
  60 struct ifmcaddr6
  61 {
  62         struct in6_addr         mca_addr;
  63         struct inet6_dev        *idev;
  64         struct ifmcaddr6        *next;
  65         struct timer_list       mca_timer;
  66         unsigned                mca_flags;
  67         atomic_t                mca_users;
  68 };
  69
  70 #define IFA_HOST        IPV6_ADDR_LOOPBACK
  71 #define IFA_LINK        IPV6_ADDR_LINKLOCAL
  72 #define IFA_SITE        IPV6_ADDR_SITELOCAL
  73 #define IFA_GLOBAL      0x0000U
  74
  75 struct ipv6_devconf
  76 {
  77         int             forwarding;
  78         int             hop_limit;
  79         int             mtu6;
  80         int             accept_ra;
  81         int             accept_redirects;
  82         int             autoconf;
  83         int             dad_transmits;
  84         int             rtr_solicits;
  85         int             rtr_solicit_interval;
  86         int             rtr_solicit_delay;
  87
  88         void            *sysctl;
  89 };
  90
  91 struct inet6_dev
  92 {
  93         struct net_device               *dev;
  94
  95         struct inet6_ifaddr     *addr_list;
  96         struct ifmcaddr6        *mc_list;
  97         rwlock_t                lock;
  98         atomic_t                refcnt;
  99         __u32                   if_flags;
 100         int                     dead;
 101
 102         struct neigh_parms      *nd_parms;
 103         struct inet6_dev        *next;
 104         struct ipv6_devconf     cnf;
 105 };
 106
 107 extern struct ipv6_devconf ipv6_devconf;
 108
 109 extern __inline__ void ipv6_eth_mc_map(struct in6_addr *addr, char *buf)
 110 {
 111         /*
 112          *      +-------+-------+-------+-------+-------+-------+
 113          *      |   33  |   33  | DST13 | DST14 | DST15 | DST16 |
 114          *      +-------+-------+-------+-------+-------+-------+
 115          */
 116
 117         buf[0]= 0x33;
 118         buf[1]= 0x33;
 119
 120         memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32));
 121 }
 122 #endif
 123 #endif