1 #ifndef _UAPI__LINUX_MROUTE6_H 2 #define _UAPI__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 ([email protected]) 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 #define MRT6_MAX (MRT6_BASE+9) 30 31 #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */ 32 #define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1) 33 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 34 35 #define MAXMIFS 32 36 typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ 37 typedef unsigned short mifi_t; 38 #define ALL_MIFS ((mifi_t)(-1)) 39 40 #ifndef IF_SETSIZE 41 #define IF_SETSIZE 256 42 #endif 43 44 typedef __u32 if_mask; 45 #define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ 46 47 #if !defined(__KERNEL__) 48 #if !defined(DIV_ROUND_UP) 49 #define DIV_ROUND_UP(x,y) (((x) + ((y) - 1)) / (y)) 50 #endif 51 #endif 52 53 typedef struct if_set { 54 if_mask ifs_bits[DIV_ROUND_UP(IF_SETSIZE, NIFBITS)]; 55 } if_set; 56 57 #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) 58 #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) 59 #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) 60 #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) 61 #define IF_ZERO(p) bzero(p, sizeof(*(p))) 62 63 /* 64 * Passed by mrouted for an MRT_ADD_MIF - again we use the 65 * mrouted 3.6 structures for compatibility 66 */ 67 68 struct mif6ctl { 69 mifi_t mif6c_mifi; /* Index of MIF */ 70 unsigned char mif6c_flags; /* MIFF_ flags */ 71 unsigned char vifc_threshold; /* ttl limit */ 72 __u16 mif6c_pifi; /* the index of the physical IF */ 73 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ 74 }; 75 76 #define MIFF_REGISTER 0x1 /* register vif */ 77 78 /* 79 * Cache manipulation structures for mrouted and PIMd 80 */ 81 82 struct mf6cctl { 83 struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */ 84 struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */ 85 mifi_t mf6cc_parent; /* Where it arrived */ 86 struct if_set mf6cc_ifset; /* Where it is going */ 87 }; 88 89 /* 90 * Group count retrieval for pim6sd 91 */ 92 93 struct sioc_sg_req6 { 94 struct sockaddr_in6 src; 95 struct sockaddr_in6 grp; 96 unsigned long pktcnt; 97 unsigned long bytecnt; 98 unsigned long wrong_if; 99 }; 100 101 /* 102 * To get vif packet counts 103 */ 104 105 struct sioc_mif_req6 { 106 mifi_t mifi; /* Which iface */ 107 unsigned long icount; /* In packets */ 108 unsigned long ocount; /* Out packets */ 109 unsigned long ibytes; /* In bytes */ 110 unsigned long obytes; /* Out bytes */ 111 }; 112 113 /* 114 * That's all usermode folks 115 */ 116 117 118 119 /* 120 * Structure used to communicate from kernel to multicast router. 121 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{} 122 * used for IPv4 implementation). This is because this structure will be passed via an 123 * IPv6 raw socket, on which an application will only receiver the payload i.e the data after 124 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542) 125 */ 126 127 struct mrt6msg { 128 #define MRT6MSG_NOCACHE 1 129 #define MRT6MSG_WRONGMIF 2 130 #define MRT6MSG_WHOLEPKT 3 /* used for use level encap */ 131 __u8 im6_mbz; /* must be zero */ 132 __u8 im6_msgtype; /* what type of message */ 133 __u16 im6_mif; /* mif rec'd on */ 134 __u32 im6_pad; /* padding for 64 bit arch */ 135 struct in6_addr im6_src, im6_dst; 136 }; 137 138 #endif /* _UAPI__LINUX_MROUTE6_H */ 139