Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __LINUX_MROUTE_H |
| 2 | #define __LINUX_MROUTE_H |
| 3 | |
| 4 | #include <linux/sockios.h> |
YOSHIFUJI Hideaki | 80a9492 | 2008-04-03 09:22:52 +0900 | [diff] [blame] | 5 | #include <linux/types.h> |
| 6 | #ifdef __KERNEL__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | #include <linux/in.h> |
YOSHIFUJI Hideaki | 80a9492 | 2008-04-03 09:22:52 +0900 | [diff] [blame] | 8 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 9 | |
| 10 | /* |
| 11 | * Based on the MROUTING 3.5 defines primarily to keep |
| 12 | * source compatibility with BSD. |
| 13 | * |
| 14 | * See the mrouted code for the original history. |
| 15 | * |
| 16 | * Protocol Independent Multicast (PIM) data structures included |
| 17 | * Carlos Picoto (cap@di.fc.ul.pt) |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #define MRT_BASE 200 |
| 22 | #define MRT_INIT (MRT_BASE) /* Activate the kernel mroute code */ |
| 23 | #define MRT_DONE (MRT_BASE+1) /* Shutdown the kernel mroute */ |
| 24 | #define MRT_ADD_VIF (MRT_BASE+2) /* Add a virtual interface */ |
| 25 | #define MRT_DEL_VIF (MRT_BASE+3) /* Delete a virtual interface */ |
| 26 | #define MRT_ADD_MFC (MRT_BASE+4) /* Add a multicast forwarding entry */ |
| 27 | #define MRT_DEL_MFC (MRT_BASE+5) /* Delete a multicast forwarding entry */ |
| 28 | #define MRT_VERSION (MRT_BASE+6) /* Get the kernel multicast version */ |
| 29 | #define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */ |
| 30 | #define MRT_PIM (MRT_BASE+8) /* enable PIM code */ |
| 31 | |
| 32 | #define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ |
| 33 | #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) |
| 34 | #define SIOCGETRPF (SIOCPROTOPRIVATE+2) |
| 35 | |
| 36 | #define MAXVIFS 32 |
| 37 | typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ |
| 38 | typedef unsigned short vifi_t; |
| 39 | #define ALL_VIFS ((vifi_t)(-1)) |
| 40 | |
| 41 | /* |
| 42 | * Same idea as select |
| 43 | */ |
| 44 | |
| 45 | #define VIFM_SET(n,m) ((m)|=(1<<(n))) |
| 46 | #define VIFM_CLR(n,m) ((m)&=~(1<<(n))) |
| 47 | #define VIFM_ISSET(n,m) ((m)&(1<<(n))) |
| 48 | #define VIFM_CLRALL(m) ((m)=0) |
| 49 | #define VIFM_COPY(mfrom,mto) ((mto)=(mfrom)) |
| 50 | #define VIFM_SAME(m1,m2) ((m1)==(m2)) |
| 51 | |
| 52 | /* |
| 53 | * Passed by mrouted for an MRT_ADD_VIF - again we use the |
| 54 | * mrouted 3.6 structures for compatibility |
| 55 | */ |
| 56 | |
| 57 | struct vifctl { |
| 58 | vifi_t vifc_vifi; /* Index of VIF */ |
| 59 | unsigned char vifc_flags; /* VIFF_ flags */ |
| 60 | unsigned char vifc_threshold; /* ttl limit */ |
| 61 | unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ |
Ilia K | ee5e81f | 2009-09-16 05:53:07 +0000 | [diff] [blame] | 62 | union { |
| 63 | struct in_addr vifc_lcl_addr; /* Local interface address */ |
| 64 | int vifc_lcl_ifindex; /* Local interface index */ |
| 65 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ |
| 67 | }; |
| 68 | |
Ilia K | ee5e81f | 2009-09-16 05:53:07 +0000 | [diff] [blame] | 69 | #define VIFF_TUNNEL 0x1 /* IPIP tunnel */ |
| 70 | #define VIFF_SRCRT 0x2 /* NI */ |
| 71 | #define VIFF_REGISTER 0x4 /* register vif */ |
| 72 | #define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of |
| 73 | vifc_lcl_addr to find an interface */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 74 | |
| 75 | /* |
| 76 | * Cache manipulation structures for mrouted and PIMd |
| 77 | */ |
| 78 | |
| 79 | struct mfcctl |
| 80 | { |
| 81 | struct in_addr mfcc_origin; /* Origin of mcast */ |
| 82 | struct in_addr mfcc_mcastgrp; /* Group in question */ |
| 83 | vifi_t mfcc_parent; /* Where it arrived */ |
| 84 | unsigned char mfcc_ttls[MAXVIFS]; /* Where it is going */ |
| 85 | unsigned int mfcc_pkt_cnt; /* pkt count for src-grp */ |
| 86 | unsigned int mfcc_byte_cnt; |
| 87 | unsigned int mfcc_wrong_if; |
| 88 | int mfcc_expire; |
| 89 | }; |
| 90 | |
| 91 | /* |
| 92 | * Group count retrieval for mrouted |
| 93 | */ |
| 94 | |
| 95 | struct sioc_sg_req |
| 96 | { |
| 97 | struct in_addr src; |
| 98 | struct in_addr grp; |
| 99 | unsigned long pktcnt; |
| 100 | unsigned long bytecnt; |
| 101 | unsigned long wrong_if; |
| 102 | }; |
| 103 | |
| 104 | /* |
| 105 | * To get vif packet counts |
| 106 | */ |
| 107 | |
| 108 | struct sioc_vif_req |
| 109 | { |
| 110 | vifi_t vifi; /* Which iface */ |
| 111 | unsigned long icount; /* In packets */ |
| 112 | unsigned long ocount; /* Out packets */ |
| 113 | unsigned long ibytes; /* In bytes */ |
| 114 | unsigned long obytes; /* Out bytes */ |
| 115 | }; |
| 116 | |
| 117 | /* |
| 118 | * This is the format the mroute daemon expects to see IGMP control |
| 119 | * data. Magically happens to be like an IP packet as per the original |
| 120 | */ |
| 121 | |
| 122 | struct igmpmsg |
| 123 | { |
| 124 | __u32 unused1,unused2; |
| 125 | unsigned char im_msgtype; /* What is this */ |
| 126 | unsigned char im_mbz; /* Must be zero */ |
| 127 | unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */ |
| 128 | unsigned char unused3; |
| 129 | struct in_addr im_src,im_dst; |
| 130 | }; |
| 131 | |
| 132 | /* |
| 133 | * That's all usermode folks |
| 134 | */ |
| 135 | |
| 136 | #ifdef __KERNEL__ |
David S. Miller | 7c19a3d | 2008-08-29 14:37:23 -0700 | [diff] [blame] | 137 | #include <linux/pim.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 138 | #include <net/sock.h> |
| 139 | |
Pavel Emelyanov | 6a9fb94 | 2007-11-05 21:32:31 -0800 | [diff] [blame] | 140 | #ifdef CONFIG_IP_MROUTE |
| 141 | static inline int ip_mroute_opt(int opt) |
| 142 | { |
| 143 | return (opt >= MRT_BASE) && (opt <= MRT_BASE + 10); |
| 144 | } |
| 145 | #else |
| 146 | static inline int ip_mroute_opt(int opt) |
| 147 | { |
| 148 | return 0; |
| 149 | } |
| 150 | #endif |
| 151 | |
YOSHIFUJI Hideaki | e0835f8 | 2008-07-03 16:51:22 +0900 | [diff] [blame] | 152 | #ifdef CONFIG_IP_MROUTE |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 153 | extern int ip_mroute_setsockopt(struct sock *, int, char __user *, unsigned int); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 154 | extern int ip_mroute_getsockopt(struct sock *, int, char __user *, int __user *); |
| 155 | extern int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg); |
Wang Chen | 03d2f89 | 2008-07-03 12:13:36 +0800 | [diff] [blame] | 156 | extern int ip_mr_init(void); |
YOSHIFUJI Hideaki | e0835f8 | 2008-07-03 16:51:22 +0900 | [diff] [blame] | 157 | #else |
| 158 | static inline |
| 159 | int ip_mroute_setsockopt(struct sock *sock, |
David S. Miller | b705884 | 2009-09-30 16:12:20 -0700 | [diff] [blame] | 160 | int optname, char __user *optval, unsigned int optlen) |
YOSHIFUJI Hideaki | e0835f8 | 2008-07-03 16:51:22 +0900 | [diff] [blame] | 161 | { |
| 162 | return -ENOPROTOOPT; |
| 163 | } |
| 164 | |
| 165 | static inline |
| 166 | int ip_mroute_getsockopt(struct sock *sock, |
| 167 | int optname, char __user *optval, int __user *optlen) |
| 168 | { |
| 169 | return -ENOPROTOOPT; |
| 170 | } |
| 171 | |
| 172 | static inline |
| 173 | int ipmr_ioctl(struct sock *sk, int cmd, void __user *arg) |
| 174 | { |
| 175 | return -ENOIOCTLCMD; |
| 176 | } |
| 177 | |
| 178 | static inline int ip_mr_init(void) |
| 179 | { |
| 180 | return 0; |
| 181 | } |
| 182 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 183 | |
| 184 | struct vif_device |
| 185 | { |
| 186 | struct net_device *dev; /* Device we are using */ |
| 187 | unsigned long bytes_in,bytes_out; |
| 188 | unsigned long pkt_in,pkt_out; /* Statistics */ |
| 189 | unsigned long rate_limit; /* Traffic shaping (NI) */ |
| 190 | unsigned char threshold; /* TTL threshold */ |
| 191 | unsigned short flags; /* Control flags */ |
Al Viro | 114c784 | 2006-09-27 18:39:29 -0700 | [diff] [blame] | 192 | __be32 local,remote; /* Addresses(remote for tunnels)*/ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 193 | int link; /* Physical interface index */ |
| 194 | }; |
| 195 | |
| 196 | #define VIFF_STATIC 0x8000 |
| 197 | |
| 198 | struct mfc_cache |
| 199 | { |
| 200 | struct mfc_cache *next; /* Next entry on cache line */ |
Benjamin Thery | 5c0a66f | 2009-01-22 04:56:17 +0000 | [diff] [blame] | 201 | #ifdef CONFIG_NET_NS |
| 202 | struct net *mfc_net; |
| 203 | #endif |
Al Viro | 114c784 | 2006-09-27 18:39:29 -0700 | [diff] [blame] | 204 | __be32 mfc_mcastgrp; /* Group the entry belongs to */ |
| 205 | __be32 mfc_origin; /* Source of packet */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 206 | vifi_t mfc_parent; /* Source interface */ |
| 207 | int mfc_flags; /* Flags on line */ |
| 208 | |
| 209 | union { |
| 210 | struct { |
| 211 | unsigned long expires; |
| 212 | struct sk_buff_head unresolved; /* Unresolved buffers */ |
| 213 | } unres; |
| 214 | struct { |
| 215 | unsigned long last_assert; |
| 216 | int minvif; |
| 217 | int maxvif; |
| 218 | unsigned long bytes; |
| 219 | unsigned long pkt; |
| 220 | unsigned long wrong_if; |
| 221 | unsigned char ttls[MAXVIFS]; /* TTL thresholds */ |
| 222 | } res; |
| 223 | } mfc_un; |
| 224 | }; |
| 225 | |
Benjamin Thery | 5c0a66f | 2009-01-22 04:56:17 +0000 | [diff] [blame] | 226 | static inline |
| 227 | struct net *mfc_net(const struct mfc_cache *mfc) |
| 228 | { |
| 229 | return read_pnet(&mfc->mfc_net); |
| 230 | } |
| 231 | |
| 232 | static inline |
| 233 | void mfc_net_set(struct mfc_cache *mfc, struct net *net) |
| 234 | { |
| 235 | write_pnet(&mfc->mfc_net, hold_net(net)); |
| 236 | } |
| 237 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 238 | #define MFC_STATIC 1 |
| 239 | #define MFC_NOTIFY 2 |
| 240 | |
| 241 | #define MFC_LINES 64 |
| 242 | |
| 243 | #ifdef __BIG_ENDIAN |
Al Viro | 114c784 | 2006-09-27 18:39:29 -0700 | [diff] [blame] | 244 | #define MFC_HASH(a,b) (((((__force u32)(__be32)a)>>24)^(((__force u32)(__be32)b)>>26))&(MFC_LINES-1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 245 | #else |
Al Viro | 114c784 | 2006-09-27 18:39:29 -0700 | [diff] [blame] | 246 | #define MFC_HASH(a,b) ((((__force u32)(__be32)a)^(((__force u32)(__be32)b)>>2))&(MFC_LINES-1)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 247 | #endif |
| 248 | |
| 249 | #endif |
| 250 | |
| 251 | |
| 252 | #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ |
| 253 | |
| 254 | /* |
| 255 | * Pseudo messages used by mrouted |
| 256 | */ |
| 257 | |
| 258 | #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ |
| 259 | #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ |
| 260 | #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ |
| 261 | |
| 262 | #ifdef __KERNEL__ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | struct rtmsg; |
Benjamin Thery | 4feb88e | 2009-01-22 04:56:23 +0000 | [diff] [blame] | 264 | extern int ipmr_get_route(struct net *net, struct sk_buff *skb, |
| 265 | struct rtmsg *rtm, int nowait); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | #endif |
| 267 | |
| 268 | #endif |