1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI__LINUX_MROUTE6_H 3 #define _UAPI__LINUX_MROUTE6_H 4 5 #include <linux/const.h> 6 #include <linux/types.h> 7 #include <linux/sockios.h> 8 #include <linux/in6.h> /* For struct sockaddr_in6. */ 9 10 /* 11 * Based on the MROUTING 3.5 defines primarily to keep 12 * source compatibility with BSD. 13 * 14 * See the pim6sd 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 MRT6_BASE 200 22 #define MRT6_INIT (MRT6_BASE) /* Activate the kernel mroute code */ 23 #define MRT6_DONE (MRT6_BASE+1) /* Shutdown the kernel mroute */ 24 #define MRT6_ADD_MIF (MRT6_BASE+2) /* Add a virtual interface */ 25 #define MRT6_DEL_MIF (MRT6_BASE+3) /* Delete a virtual interface */ 26 #define MRT6_ADD_MFC (MRT6_BASE+4) /* Add a multicast forwarding entry */ 27 #define MRT6_DEL_MFC (MRT6_BASE+5) /* Delete a multicast forwarding entry */ 28 #define MRT6_VERSION (MRT6_BASE+6) /* Get the kernel multicast version */ 29 #define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */ 30 #define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */ 31 #define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */ 32 #define MRT6_ADD_MFC_PROXY (MRT6_BASE+10) /* Add a (*,*|G) mfc entry */ 33 #define MRT6_DEL_MFC_PROXY (MRT6_BASE+11) /* Del a (*,*|G) mfc entry */ 34 #define MRT6_MAX (MRT6_BASE+11) 35 36 #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */ 37 #define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1) 38 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 39 40 #define MAXMIFS 32 41 typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ 42 typedef unsigned short mifi_t; 43 #define ALL_MIFS ((mifi_t)(-1)) 44 45 #ifndef IF_SETSIZE 46 #define IF_SETSIZE 256 47 #endif 48 49 typedef __u32 if_mask; 50 #define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ 51 52 typedef struct if_set { 53 if_mask ifs_bits[__KERNEL_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 */ 71 __u16 mif6c_pifi; /* the index of the physical IF */ 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 81 struct mf6cctl { 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 92 struct sioc_sg_req6 { 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 */ 103 104 struct sioc_mif_req6 { 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 which 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 /* ip6mr netlink cache report attributes */ 138 enum { 139 IP6MRA_CREPORT_UNSPEC, 140 IP6MRA_CREPORT_MSGTYPE, 141 IP6MRA_CREPORT_MIF_ID, 142 IP6MRA_CREPORT_SRC_ADDR, 143 IP6MRA_CREPORT_DST_ADDR, 144 IP6MRA_CREPORT_PKT, 145 __IP6MRA_CREPORT_MAX 146 }; 147 #define IP6MRA_CREPORT_MAX (__IP6MRA_CREPORT_MAX - 1) 148 149 #endif /* _UAPI__LINUX_MROUTE6_H */ 150