YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 1 | #ifndef __LINUX_MROUTE6_H |
| 2 | #define __LINUX_MROUTE6_H |
| 3 | |
| 4 | #include <linux/types.h> |
| 5 | #include <linux/sockios.h> |
| 6 | |
| 7 | /* |
| 8 | * Based on the MROUTING 3.5 defines primarily to keep |
| 9 | * source compatibility with BSD. |
| 10 | * |
| 11 | * See the pim6sd code for the original history. |
| 12 | * |
| 13 | * Protocol Independent Multicast (PIM) data structures included |
| 14 | * Carlos Picoto (cap@di.fc.ul.pt) |
| 15 | * |
| 16 | */ |
| 17 | |
| 18 | #define MRT6_BASE 200 |
| 19 | #define MRT6_INIT (MRT6_BASE) /* Activate the kernel mroute code */ |
| 20 | #define MRT6_DONE (MRT6_BASE+1) /* Shutdown the kernel mroute */ |
| 21 | #define MRT6_ADD_MIF (MRT6_BASE+2) /* Add a virtual interface */ |
| 22 | #define MRT6_DEL_MIF (MRT6_BASE+3) /* Delete a virtual interface */ |
| 23 | #define MRT6_ADD_MFC (MRT6_BASE+4) /* Add a multicast forwarding entry */ |
| 24 | #define MRT6_DEL_MFC (MRT6_BASE+5) /* Delete a multicast forwarding entry */ |
| 25 | #define MRT6_VERSION (MRT6_BASE+6) /* Get the kernel multicast version */ |
YOSHIFUJI Hideaki | 14fb64e | 2008-04-03 09:22:54 +0900 | [diff] [blame] | 26 | #define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */ |
Patrick McHardy | d1db275 | 2010-05-11 14:40:55 +0200 | [diff] [blame] | 27 | #define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */ |
| 28 | #define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */ |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 29 | |
| 30 | #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */ |
| 31 | #define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1) |
| 32 | #define SIOCGETRPF (SIOCPROTOPRIVATE+2) |
| 33 | |
| 34 | #define MAXMIFS 32 |
| 35 | typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ |
| 36 | typedef unsigned short mifi_t; |
| 37 | #define ALL_MIFS ((mifi_t)(-1)) |
| 38 | |
| 39 | #ifndef IF_SETSIZE |
| 40 | #define IF_SETSIZE 256 |
| 41 | #endif |
| 42 | |
| 43 | typedef __u32 if_mask; |
| 44 | #define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ |
| 45 | |
David Howells | 1632b9e | 2011-12-13 15:07:49 +0000 | [diff] [blame^] | 46 | #if !defined(__KERNEL__) |
| 47 | #if !defined(DIV_ROUND_UP) |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 48 | #define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y)) |
| 49 | #endif |
David Howells | 1632b9e | 2011-12-13 15:07:49 +0000 | [diff] [blame^] | 50 | #endif |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 51 | |
| 52 | typedef struct if_set { |
| 53 | if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)]; |
| 54 | } if_set; |
| 55 | |
| 56 | #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) |
| 57 | #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) |
| 58 | #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) |
| 59 | #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) |
| 60 | #define IF_ZERO(p) bzero(p, sizeof(*(p))) |
| 61 | |
| 62 | /* |
| 63 | * Passed by mrouted for an MRT_ADD_MIF - again we use the |
| 64 | * mrouted 3.6 structures for compatibility |
| 65 | */ |
| 66 | |
| 67 | struct mif6ctl { |
| 68 | mifi_t mif6c_mifi; /* Index of MIF */ |
| 69 | unsigned char mif6c_flags; /* MIFF_ flags */ |
| 70 | unsigned char vifc_threshold; /* ttl limit */ |
Arnd Bergmann | 85efde6 | 2009-02-26 00:51:39 +0100 | [diff] [blame] | 71 | __u16 mif6c_pifi; /* the index of the physical IF */ |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 72 | unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ |
| 73 | }; |
| 74 | |
| 75 | #define MIFF_REGISTER 0x1 /* register vif */ |
| 76 | |
| 77 | /* |
| 78 | * Cache manipulation structures for mrouted and PIMd |
| 79 | */ |
| 80 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 81 | struct mf6cctl { |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 82 | struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */ |
| 83 | struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */ |
| 84 | mifi_t mf6cc_parent; /* Where it arrived */ |
| 85 | struct if_set mf6cc_ifset; /* Where it is going */ |
| 86 | }; |
| 87 | |
| 88 | /* |
| 89 | * Group count retrieval for pim6sd |
| 90 | */ |
| 91 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 92 | struct sioc_sg_req6 { |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 93 | struct sockaddr_in6 src; |
| 94 | struct sockaddr_in6 grp; |
| 95 | unsigned long pktcnt; |
| 96 | unsigned long bytecnt; |
| 97 | unsigned long wrong_if; |
| 98 | }; |
| 99 | |
| 100 | /* |
| 101 | * To get vif packet counts |
| 102 | */ |
| 103 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 104 | struct sioc_mif_req6 { |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 105 | mifi_t mifi; /* Which iface */ |
| 106 | unsigned long icount; /* In packets */ |
| 107 | unsigned long ocount; /* Out packets */ |
| 108 | unsigned long ibytes; /* In bytes */ |
| 109 | unsigned long obytes; /* Out bytes */ |
| 110 | }; |
| 111 | |
| 112 | /* |
| 113 | * That's all usermode folks |
| 114 | */ |
| 115 | |
| 116 | #ifdef __KERNEL__ |
| 117 | |
David S. Miller | 7c19a3d | 2008-08-29 14:37:23 -0700 | [diff] [blame] | 118 | #include <linux/pim.h> |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 119 | #include <linux/skbuff.h> /* for struct sk_buff_head */ |
Benjamin Thery | bd91b8b | 2008-12-10 16:07:08 -0800 | [diff] [blame] | 120 | #include <net/net_namespace.h> |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 121 | |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 122 | #ifdef CONFIG_IPV6_MROUTE |
| 123 | static inline int ip6_mroute_opt(int opt) |
| 124 | { |
| 125 | return (opt >= MRT6_BASE) && (opt <= MRT6_BASE + 10); |
| 126 | } |
| 127 | #else |
| 128 | static inline int ip6_mroute_opt(int opt) |
| 129 | { |
| 130 | return 0; |
| 131 | } |
| 132 | #endif |
| 133 | |
| 134 | struct sock; |
| 135 | |
YOSHIFUJI Hideaki | e0835f8 | 2008-07-03 16:51:22 +0900 | [diff] [blame] | 136 | #ifdef CONFIG_IPV6_MROUTE |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 137 | extern int ip6_mroute_setsockopt(struct sock *, int, char __user *, unsigned int); |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 138 | extern int ip6_mroute_getsockopt(struct sock *, int, char __user *, int __user *); |
| 139 | extern int ip6_mr_input(struct sk_buff *skb); |
| 140 | extern int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg); |
David S. Miller | e2d5776 | 2011-02-03 17:59:32 -0800 | [diff] [blame] | 141 | extern int ip6mr_compat_ioctl(struct sock *sk, unsigned int cmd, void __user *arg); |
Wang Chen | 623d1a1 | 2008-07-03 12:13:30 +0800 | [diff] [blame] | 142 | extern int ip6_mr_init(void); |
| 143 | extern void ip6_mr_cleanup(void); |
YOSHIFUJI Hideaki | e0835f8 | 2008-07-03 16:51:22 +0900 | [diff] [blame] | 144 | #else |
| 145 | static inline |
| 146 | int ip6_mroute_setsockopt(struct sock *sock, |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 147 | int optname, char __user *optval, unsigned int optlen) |
YOSHIFUJI Hideaki | e0835f8 | 2008-07-03 16:51:22 +0900 | [diff] [blame] | 148 | { |
| 149 | return -ENOPROTOOPT; |
| 150 | } |
| 151 | |
| 152 | static inline |
| 153 | int ip6_mroute_getsockopt(struct sock *sock, |
| 154 | int optname, char __user *optval, int __user *optlen) |
| 155 | { |
| 156 | return -ENOPROTOOPT; |
| 157 | } |
| 158 | |
| 159 | static inline |
| 160 | int ip6mr_ioctl(struct sock *sk, int cmd, void __user *arg) |
| 161 | { |
| 162 | return -ENOIOCTLCMD; |
| 163 | } |
| 164 | |
| 165 | static inline int ip6_mr_init(void) |
| 166 | { |
| 167 | return 0; |
| 168 | } |
| 169 | |
| 170 | static inline void ip6_mr_cleanup(void) |
| 171 | { |
| 172 | return; |
| 173 | } |
| 174 | #endif |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 175 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 176 | struct mif_device { |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 177 | struct net_device *dev; /* Device we are using */ |
| 178 | unsigned long bytes_in,bytes_out; |
| 179 | unsigned long pkt_in,pkt_out; /* Statistics */ |
| 180 | unsigned long rate_limit; /* Traffic shaping (NI) */ |
| 181 | unsigned char threshold; /* TTL threshold */ |
| 182 | unsigned short flags; /* Control flags */ |
| 183 | int link; /* Physical interface index */ |
| 184 | }; |
| 185 | |
| 186 | #define VIFF_STATIC 0x8000 |
| 187 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 188 | struct mfc6_cache { |
Patrick McHardy | f30a7784 | 2010-05-11 14:40:51 +0200 | [diff] [blame] | 189 | struct list_head list; |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 190 | struct in6_addr mf6c_mcastgrp; /* Group the entry belongs to */ |
| 191 | struct in6_addr mf6c_origin; /* Source of packet */ |
| 192 | mifi_t mf6c_parent; /* Source interface */ |
| 193 | int mfc_flags; /* Flags on line */ |
| 194 | |
| 195 | union { |
| 196 | struct { |
| 197 | unsigned long expires; |
| 198 | struct sk_buff_head unresolved; /* Unresolved buffers */ |
| 199 | } unres; |
| 200 | struct { |
| 201 | unsigned long last_assert; |
| 202 | int minvif; |
| 203 | int maxvif; |
| 204 | unsigned long bytes; |
| 205 | unsigned long pkt; |
| 206 | unsigned long wrong_if; |
| 207 | unsigned char ttls[MAXMIFS]; /* TTL thresholds */ |
| 208 | } res; |
| 209 | } mfc_un; |
| 210 | }; |
| 211 | |
| 212 | #define MFC_STATIC 1 |
| 213 | #define MFC_NOTIFY 2 |
| 214 | |
| 215 | #define MFC6_LINES 64 |
| 216 | |
| 217 | #define MFC6_HASH(a, g) (((__force u32)(a)->s6_addr32[0] ^ \ |
| 218 | (__force u32)(a)->s6_addr32[1] ^ \ |
| 219 | (__force u32)(a)->s6_addr32[2] ^ \ |
| 220 | (__force u32)(a)->s6_addr32[3] ^ \ |
| 221 | (__force u32)(g)->s6_addr32[0] ^ \ |
| 222 | (__force u32)(g)->s6_addr32[1] ^ \ |
| 223 | (__force u32)(g)->s6_addr32[2] ^ \ |
| 224 | (__force u32)(g)->s6_addr32[3]) % MFC6_LINES) |
| 225 | |
| 226 | #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ |
| 227 | |
| 228 | #endif |
| 229 | |
| 230 | #ifdef __KERNEL__ |
| 231 | struct rtmsg; |
Benjamin Thery | 8229efd | 2008-12-10 16:30:15 -0800 | [diff] [blame] | 232 | extern int ip6mr_get_route(struct net *net, struct sk_buff *skb, |
| 233 | struct rtmsg *rtm, int nowait); |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 234 | |
| 235 | #ifdef CONFIG_IPV6_MROUTE |
Patrick McHardy | d1db275 | 2010-05-11 14:40:55 +0200 | [diff] [blame] | 236 | extern struct sock *mroute6_socket(struct net *net, struct sk_buff *skb); |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 237 | extern int ip6mr_sk_done(struct sock *sk); |
| 238 | #else |
Patrick McHardy | d1db275 | 2010-05-11 14:40:55 +0200 | [diff] [blame] | 239 | static inline struct sock *mroute6_socket(struct net *net, struct sk_buff *skb) |
| 240 | { |
| 241 | return NULL; |
| 242 | } |
| 243 | static inline int ip6mr_sk_done(struct sock *sk) |
| 244 | { |
| 245 | return 0; |
| 246 | } |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 247 | #endif |
| 248 | #endif |
| 249 | |
| 250 | /* |
| 251 | * Structure used to communicate from kernel to multicast router. |
| 252 | * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{} |
| 253 | * used for IPv4 implementation). This is because this structure will be passed via an |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 254 | * IPv6 raw socket, on which an application will only receiver the payload i.e the data after |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 255 | * the IPv6 header and all the extension headers. (See section 3 of RFC 3542) |
| 256 | */ |
| 257 | |
| 258 | struct mrt6msg { |
| 259 | #define MRT6MSG_NOCACHE 1 |
YOSHIFUJI Hideaki | 14fb64e | 2008-04-03 09:22:54 +0900 | [diff] [blame] | 260 | #define MRT6MSG_WRONGMIF 2 |
| 261 | #define MRT6MSG_WHOLEPKT 3 /* used for use level encap */ |
YOSHIFUJI Hideaki | 7bc570c | 2008-04-03 09:22:53 +0900 | [diff] [blame] | 262 | __u8 im6_mbz; /* must be zero */ |
| 263 | __u8 im6_msgtype; /* what type of message */ |
| 264 | __u16 im6_mif; /* mif rec'd on */ |
| 265 | __u32 im6_pad; /* padding for 64 bit arch */ |
| 266 | struct in6_addr im6_src, im6_dst; |
| 267 | }; |
| 268 | |
| 269 | #endif |