Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | #include <net/snmp.h> |
| 19 | #include <linux/ipv6.h> |
| 20 | |
| 21 | /* inet6_dev.if_flags */ |
| 22 | |
| 23 | #define IF_RA_OTHERCONF 0x80 |
| 24 | #define IF_RA_MANAGED 0x40 |
| 25 | #define IF_RA_RCVD 0x20 |
| 26 | #define IF_RS_SENT 0x10 |
YOSHIFUJI Hideaki | 3c21edb | 2005-12-21 22:57:24 +0900 | [diff] [blame] | 27 | #define IF_READY 0x80000000 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | |
| 29 | /* prefix flags */ |
| 30 | #define IF_PREFIX_ONLINK 0x01 |
| 31 | #define IF_PREFIX_AUTOCONF 0x02 |
| 32 | |
| 33 | #ifdef __KERNEL__ |
| 34 | |
| 35 | struct inet6_ifaddr |
| 36 | { |
| 37 | struct in6_addr addr; |
| 38 | __u32 prefix_len; |
| 39 | |
| 40 | __u32 valid_lft; |
| 41 | __u32 prefered_lft; |
| 42 | unsigned long cstamp; /* created timestamp */ |
| 43 | unsigned long tstamp; /* updated timestamp */ |
| 44 | atomic_t refcnt; |
| 45 | spinlock_t lock; |
| 46 | |
| 47 | __u8 probes; |
| 48 | __u8 flags; |
| 49 | |
| 50 | __u16 scope; |
| 51 | |
| 52 | struct timer_list timer; |
| 53 | |
| 54 | struct inet6_dev *idev; |
| 55 | struct rt6_info *rt; |
| 56 | |
| 57 | struct inet6_ifaddr *lst_next; /* next addr in addr_lst */ |
| 58 | struct inet6_ifaddr *if_next; /* next addr in inet6_dev */ |
| 59 | |
| 60 | #ifdef CONFIG_IPV6_PRIVACY |
| 61 | struct inet6_ifaddr *tmp_next; /* next addr in tempaddr_lst */ |
| 62 | struct inet6_ifaddr *ifpub; |
| 63 | int regen_count; |
| 64 | #endif |
| 65 | |
| 66 | int dead; |
| 67 | }; |
| 68 | |
| 69 | struct ip6_sf_socklist |
| 70 | { |
| 71 | unsigned int sl_max; |
| 72 | unsigned int sl_count; |
| 73 | struct in6_addr sl_addr[0]; |
| 74 | }; |
| 75 | |
| 76 | #define IP6_SFLSIZE(count) (sizeof(struct ip6_sf_socklist) + \ |
| 77 | (count) * sizeof(struct in6_addr)) |
| 78 | |
| 79 | #define IP6_SFBLOCK 10 /* allocate this many at once */ |
| 80 | |
| 81 | struct ipv6_mc_socklist |
| 82 | { |
| 83 | struct in6_addr addr; |
| 84 | int ifindex; |
| 85 | struct ipv6_mc_socklist *next; |
David L Stevens | 5ab4a6c | 2005-12-27 14:03:00 -0800 | [diff] [blame^] | 86 | rwlock_t sflock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | unsigned int sfmode; /* MCAST_{INCLUDE,EXCLUDE} */ |
| 88 | struct ip6_sf_socklist *sflist; |
| 89 | }; |
| 90 | |
| 91 | struct ip6_sf_list |
| 92 | { |
| 93 | struct ip6_sf_list *sf_next; |
| 94 | struct in6_addr sf_addr; |
| 95 | unsigned long sf_count[2]; /* include/exclude counts */ |
| 96 | unsigned char sf_gsresp; /* include in g & s response? */ |
| 97 | unsigned char sf_oldin; /* change state */ |
| 98 | unsigned char sf_crcount; /* retrans. left to send */ |
| 99 | }; |
| 100 | |
| 101 | #define MAF_TIMER_RUNNING 0x01 |
| 102 | #define MAF_LAST_REPORTER 0x02 |
| 103 | #define MAF_LOADED 0x04 |
| 104 | #define MAF_NOREPORT 0x08 |
| 105 | #define MAF_GSQUERY 0x10 |
| 106 | |
| 107 | struct ifmcaddr6 |
| 108 | { |
| 109 | struct in6_addr mca_addr; |
| 110 | struct inet6_dev *idev; |
| 111 | struct ifmcaddr6 *next; |
| 112 | struct ip6_sf_list *mca_sources; |
| 113 | struct ip6_sf_list *mca_tomb; |
| 114 | unsigned int mca_sfmode; |
| 115 | unsigned long mca_sfcount[2]; |
| 116 | struct timer_list mca_timer; |
| 117 | unsigned mca_flags; |
| 118 | int mca_users; |
| 119 | atomic_t mca_refcnt; |
| 120 | spinlock_t mca_lock; |
| 121 | unsigned char mca_crcount; |
| 122 | unsigned long mca_cstamp; |
| 123 | unsigned long mca_tstamp; |
| 124 | }; |
| 125 | |
| 126 | /* Anycast stuff */ |
| 127 | |
| 128 | struct ipv6_ac_socklist |
| 129 | { |
| 130 | struct in6_addr acl_addr; |
| 131 | int acl_ifindex; |
| 132 | struct ipv6_ac_socklist *acl_next; |
| 133 | }; |
| 134 | |
| 135 | struct ifacaddr6 |
| 136 | { |
| 137 | struct in6_addr aca_addr; |
| 138 | struct inet6_dev *aca_idev; |
| 139 | struct rt6_info *aca_rt; |
| 140 | struct ifacaddr6 *aca_next; |
| 141 | int aca_users; |
| 142 | atomic_t aca_refcnt; |
| 143 | spinlock_t aca_lock; |
| 144 | unsigned long aca_cstamp; |
| 145 | unsigned long aca_tstamp; |
| 146 | }; |
| 147 | |
| 148 | #define IFA_HOST IPV6_ADDR_LOOPBACK |
| 149 | #define IFA_LINK IPV6_ADDR_LINKLOCAL |
| 150 | #define IFA_SITE IPV6_ADDR_SITELOCAL |
| 151 | #define IFA_GLOBAL 0x0000U |
| 152 | |
| 153 | struct ipv6_devstat { |
| 154 | struct proc_dir_entry *proc_dir_entry; |
| 155 | DEFINE_SNMP_STAT(struct icmpv6_mib, icmpv6); |
| 156 | }; |
| 157 | |
| 158 | struct inet6_dev |
| 159 | { |
| 160 | struct net_device *dev; |
| 161 | |
| 162 | struct inet6_ifaddr *addr_list; |
| 163 | |
| 164 | struct ifmcaddr6 *mc_list; |
| 165 | struct ifmcaddr6 *mc_tomb; |
| 166 | rwlock_t mc_lock; |
| 167 | unsigned long mc_v1_seen; |
| 168 | unsigned long mc_maxdelay; |
| 169 | unsigned char mc_qrv; |
| 170 | unsigned char mc_gq_running; |
| 171 | unsigned char mc_ifc_count; |
| 172 | struct timer_list mc_gq_timer; /* general query timer */ |
| 173 | struct timer_list mc_ifc_timer; /* interface change timer */ |
| 174 | |
| 175 | struct ifacaddr6 *ac_list; |
| 176 | rwlock_t lock; |
| 177 | atomic_t refcnt; |
| 178 | __u32 if_flags; |
| 179 | int dead; |
| 180 | |
| 181 | #ifdef CONFIG_IPV6_PRIVACY |
| 182 | u8 rndid[8]; |
| 183 | u8 entropy[8]; |
| 184 | struct timer_list regen_timer; |
| 185 | struct inet6_ifaddr *tempaddr_list; |
| 186 | __u8 work_eui64[8]; |
| 187 | __u8 work_digest[16]; |
| 188 | #endif |
| 189 | |
| 190 | struct neigh_parms *nd_parms; |
| 191 | struct inet6_dev *next; |
| 192 | struct ipv6_devconf cnf; |
| 193 | struct ipv6_devstat stats; |
| 194 | unsigned long tstamp; /* ipv6InterfaceTable update timestamp */ |
| 195 | }; |
| 196 | |
| 197 | extern struct ipv6_devconf ipv6_devconf; |
| 198 | |
| 199 | static inline void ipv6_eth_mc_map(struct in6_addr *addr, char *buf) |
| 200 | { |
| 201 | /* |
| 202 | * +-------+-------+-------+-------+-------+-------+ |
| 203 | * | 33 | 33 | DST13 | DST14 | DST15 | DST16 | |
| 204 | * +-------+-------+-------+-------+-------+-------+ |
| 205 | */ |
| 206 | |
| 207 | buf[0]= 0x33; |
| 208 | buf[1]= 0x33; |
| 209 | |
| 210 | memcpy(buf + 2, &addr->s6_addr32[3], sizeof(__u32)); |
| 211 | } |
| 212 | |
| 213 | static inline void ipv6_tr_mc_map(struct in6_addr *addr, char *buf) |
| 214 | { |
| 215 | /* All nodes FF01::1, FF02::1, FF02::1:FFxx:xxxx */ |
| 216 | |
| 217 | if (((addr->s6_addr[0] == 0xFF) && |
| 218 | ((addr->s6_addr[1] == 0x01) || (addr->s6_addr[1] == 0x02)) && |
| 219 | (addr->s6_addr16[1] == 0) && |
| 220 | (addr->s6_addr32[1] == 0) && |
| 221 | (addr->s6_addr32[2] == 0) && |
| 222 | (addr->s6_addr16[6] == 0) && |
| 223 | (addr->s6_addr[15] == 1)) || |
| 224 | ((addr->s6_addr[0] == 0xFF) && |
| 225 | (addr->s6_addr[1] == 0x02) && |
| 226 | (addr->s6_addr16[1] == 0) && |
| 227 | (addr->s6_addr32[1] == 0) && |
| 228 | (addr->s6_addr16[4] == 0) && |
| 229 | (addr->s6_addr[10] == 0) && |
| 230 | (addr->s6_addr[11] == 1) && |
| 231 | (addr->s6_addr[12] == 0xff))) |
| 232 | { |
| 233 | buf[0]=0xC0; |
| 234 | buf[1]=0x00; |
| 235 | buf[2]=0x01; |
| 236 | buf[3]=0x00; |
| 237 | buf[4]=0x00; |
| 238 | buf[5]=0x00; |
| 239 | /* All routers FF0x::2 */ |
| 240 | } else if ((addr->s6_addr[0] ==0xff) && |
| 241 | ((addr->s6_addr[1] & 0xF0) == 0) && |
| 242 | (addr->s6_addr16[1] == 0) && |
| 243 | (addr->s6_addr32[1] == 0) && |
| 244 | (addr->s6_addr32[2] == 0) && |
| 245 | (addr->s6_addr16[6] == 0) && |
| 246 | (addr->s6_addr[15] == 2)) |
| 247 | { |
| 248 | buf[0]=0xC0; |
| 249 | buf[1]=0x00; |
| 250 | buf[2]=0x02; |
| 251 | buf[3]=0x00; |
| 252 | buf[4]=0x00; |
| 253 | buf[5]=0x00; |
| 254 | } else { |
| 255 | unsigned char i ; |
| 256 | |
| 257 | i = addr->s6_addr[15] & 7 ; |
| 258 | buf[0]=0xC0; |
| 259 | buf[1]=0x00; |
| 260 | buf[2]=0x00; |
| 261 | buf[3]=0x01 << i ; |
| 262 | buf[4]=0x00; |
| 263 | buf[5]=0x00; |
| 264 | } |
| 265 | } |
| 266 | |
| 267 | static inline void ipv6_arcnet_mc_map(const struct in6_addr *addr, char *buf) |
| 268 | { |
| 269 | buf[0] = 0x00; |
| 270 | } |
| 271 | |
| 272 | static inline void ipv6_ib_mc_map(struct in6_addr *addr, char *buf) |
| 273 | { |
| 274 | buf[0] = 0; /* Reserved */ |
| 275 | buf[1] = 0xff; /* Multicast QPN */ |
| 276 | buf[2] = 0xff; |
| 277 | buf[3] = 0xff; |
| 278 | buf[4] = 0xff; |
| 279 | buf[5] = 0x12; /* link local scope */ |
| 280 | buf[6] = 0x60; /* IPv6 signature */ |
| 281 | buf[7] = 0x1b; |
| 282 | buf[8] = 0; /* P_Key */ |
| 283 | buf[9] = 0; |
| 284 | memcpy(buf + 10, addr->s6_addr + 6, 10); |
| 285 | } |
| 286 | #endif |
| 287 | #endif |