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 */ 26#define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */ 27#define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */ 28#define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */ 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 35typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ 36typedef unsigned short mifi_t; 37#define ALL_MIFS ((mifi_t)(-1)) 38 39#ifndef IF_SETSIZE 40#define IF_SETSIZE 256 41#endif 42 43typedef __u32 if_mask; 44#define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ 45 46#if !defined(__KERNEL__) && !defined(DIV_ROUND_UP) 47#define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y)) 48#endif 49 50typedef struct if_set { 51 if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)]; 52} if_set; 53 54#define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) 55#define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) 56#define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) 57#define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) 58#define IF_ZERO(p) bzero(p, sizeof(*(p))) 59 60/* 61 * Passed by mrouted for an MRT_ADD_MIF - again we use the 62 * mrouted 3.6 structures for compatibility 63 */ 64 65struct mif6ctl { 66 mifi_t mif6c_mifi; /* Index of MIF */ 67 unsigned char mif6c_flags; /* MIFF_ flags */ 68 unsigned char vifc_threshold; /* ttl limit */ 69 __u16 mif6c_pifi; /* the index of the physical IF */ 70 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ 71}; 72 73#define MIFF_REGISTER 0x1 /* register vif */ 74 75/* 76 * Cache manipulation structures for mrouted and PIMd 77 */ 78 79struct mf6cctl { 80 struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */ 81 struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */ 82 mifi_t mf6cc_parent; /* Where it arrived */ 83 struct if_set mf6cc_ifset; /* Where it is going */ 84}; 85 86/* 87 * Group count retrieval for pim6sd 88 */ 89 90struct sioc_sg_req6 { 91 struct sockaddr_in6 src; 92 struct sockaddr_in6 grp; 93 unsigned long pktcnt; 94 unsigned long bytecnt; 95 unsigned long wrong_if; 96}; 97 98/* 99 * To get vif packet counts 100 */ 101 102struct sioc_mif_req6 { 103 mifi_t mifi; /* Which iface */ 104 unsigned long icount; /* In packets */ 105 unsigned long ocount; /* Out packets */ 106 unsigned long ibytes; /* In bytes */ 107 unsigned long obytes; /* Out bytes */ 108}; 109 110/* 111 * That's all usermode folks 112 */ 113 114 115 116/* 117 * Structure used to communicate from kernel to multicast router. 118 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{} 119 * used for IPv4 implementation). This is because this structure will be passed via an 120 * IPv6 raw socket, on wich an application will only receiver the payload i.e the data after 121 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542) 122 */ 123 124struct mrt6msg { 125#define MRT6MSG_NOCACHE 1 126#define MRT6MSG_WRONGMIF 2 127#define MRT6MSG_WHOLEPKT 3 /* used for use level encap */ 128 __u8 im6_mbz; /* must be zero */ 129 __u8 im6_msgtype; /* what type of message */ 130 __u16 im6_mif; /* mif rec'd on */ 131 __u32 im6_pad; /* padding for 64 bit arch */ 132 struct in6_addr im6_src, im6_dst; 133}; 134 135#endif 136