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 29 #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */ 30 #define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1) 31 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 32 33 #define MAXMIFS 32 34 typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ 35 typedef unsigned short mifi_t; 36 #define ALL_MIFS ((mifi_t)(-1)) 37 38 #ifndef IF_SETSIZE 39 #define IF_SETSIZE 256 40 #endif 41 42 typedef __u32 if_mask; 43 #define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ 44 45 #if !defined(__KERNEL__) && !defined(DIV_ROUND_UP) 46 #define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y)) 47 #endif 48 49 typedef struct if_set { 50 if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)]; 51 } if_set; 52 53 #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) 54 #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) 55 #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) 56 #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) 57 #define IF_ZERO(p) bzero(p, sizeof(*(p))) 58 59 /* 60 * Passed by mrouted for an MRT_ADD_MIF - again we use the 61 * mrouted 3.6 structures for compatibility 62 */ 63 64 struct mif6ctl { 65 mifi_t mif6c_mifi; /* Index of MIF */ 66 unsigned char mif6c_flags; /* MIFF_ flags */ 67 unsigned char vifc_threshold; /* ttl limit */ 68 u_short mif6c_pifi; /* the index of the physical IF */ 69 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ 70 }; 71 72 #define MIFF_REGISTER 0x1 /* register vif */ 73 74 /* 75 * Cache manipulation structures for mrouted and PIMd 76 */ 77 78 struct mf6cctl 79 { 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 90 struct sioc_sg_req6 91 { 92 struct sockaddr_in6 src; 93 struct sockaddr_in6 grp; 94 unsigned long pktcnt; 95 unsigned long bytecnt; 96 unsigned long wrong_if; 97 }; 98 99 /* 100 * To get vif packet counts 101 */ 102 103 struct sioc_mif_req6 104 { 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 */ 115 116 117 118 /* 119 * Structure used to communicate from kernel to multicast router. 120 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{} 121 * used for IPv4 implementation). This is because this structure will be passed via an 122 * IPv6 raw socket, on wich an application will only receiver the payload i.e the data after 123 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542) 124 */ 125 126 struct mrt6msg { 127 #define MRT6MSG_NOCACHE 1 128 #define MRT6MSG_WRONGMIF 2 129 #define MRT6MSG_WHOLEPKT 3 /* used for use level encap */ 130 __u8 im6_mbz; /* must be zero */ 131 __u8 im6_msgtype; /* what type of message */ 132 __u16 im6_mif; /* mif rec'd on */ 133 __u32 im6_pad; /* padding for 64 bit arch */ 134 struct in6_addr im6_src, im6_dst; 135 }; 136 137 #endif 138