1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2 #ifndef _UAPI__LINUX_MROUTE_H 3 #define _UAPI__LINUX_MROUTE_H 4 5 #include <linux/sockios.h> 6 #include <linux/types.h> 7 #include <linux/in.h> /* For struct in_addr. */ 8 9 /* Based on the MROUTING 3.5 defines primarily to keep 10 * source compatibility with BSD. 11 * 12 * See the mrouted code for the original history. 13 * 14 * Protocol Independent Multicast (PIM) data structures included 15 * Carlos Picoto (cap@di.fc.ul.pt) 16 */ 17 18 #define MRT_BASE 200 19 #define MRT_INIT (MRT_BASE) /* Activate the kernel mroute code */ 20 #define MRT_DONE (MRT_BASE+1) /* Shutdown the kernel mroute */ 21 #define MRT_ADD_VIF (MRT_BASE+2) /* Add a virtual interface */ 22 #define MRT_DEL_VIF (MRT_BASE+3) /* Delete a virtual interface */ 23 #define MRT_ADD_MFC (MRT_BASE+4) /* Add a multicast forwarding entry */ 24 #define MRT_DEL_MFC (MRT_BASE+5) /* Delete a multicast forwarding entry */ 25 #define MRT_VERSION (MRT_BASE+6) /* Get the kernel multicast version */ 26 #define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */ 27 #define MRT_PIM (MRT_BASE+8) /* enable PIM code */ 28 #define MRT_TABLE (MRT_BASE+9) /* Specify mroute table ID */ 29 #define MRT_ADD_MFC_PROXY (MRT_BASE+10) /* Add a (*,*|G) mfc entry */ 30 #define MRT_DEL_MFC_PROXY (MRT_BASE+11) /* Del a (*,*|G) mfc entry */ 31 #define MRT_MAX (MRT_BASE+11) 32 33 #define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ 34 #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) 35 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 36 37 #define MAXVIFS 32 38 typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ 39 typedef unsigned short vifi_t; 40 #define ALL_VIFS ((vifi_t)(-1)) 41 42 /* Same idea as select */ 43 44 #define VIFM_SET(n,m) ((m)|=(1<<(n))) 45 #define VIFM_CLR(n,m) ((m)&=~(1<<(n))) 46 #define VIFM_ISSET(n,m) ((m)&(1<<(n))) 47 #define VIFM_CLRALL(m) ((m)=0) 48 #define VIFM_COPY(mfrom,mto) ((mto)=(mfrom)) 49 #define VIFM_SAME(m1,m2) ((m1)==(m2)) 50 51 /* Passed by mrouted for an MRT_ADD_VIF - again we use the 52 * mrouted 3.6 structures for compatibility 53 */ 54 struct vifctl { 55 vifi_t vifc_vifi; /* Index of VIF */ 56 unsigned char vifc_flags; /* VIFF_ flags */ 57 unsigned char vifc_threshold; /* ttl limit */ 58 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ 59 union { 60 struct in_addr vifc_lcl_addr; /* Local interface address */ 61 int vifc_lcl_ifindex; /* Local interface index */ 62 }; 63 struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ 64 }; 65 66 #define VIFF_TUNNEL 0x1 /* IPIP tunnel */ 67 #define VIFF_SRCRT 0x2 /* NI */ 68 #define VIFF_REGISTER 0x4 /* register vif */ 69 #define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of 70 vifc_lcl_addr to find an interface */ 71 72 /* Cache manipulation structures for mrouted and PIMd */ 73 struct mfcctl { 74 struct in_addr mfcc_origin; /* Origin of mcast */ 75 struct in_addr mfcc_mcastgrp; /* Group in question */ 76 vifi_t mfcc_parent; /* Where it arrived */ 77 unsigned char mfcc_ttls[MAXVIFS]; /* Where it is going */ 78 unsigned int mfcc_pkt_cnt; /* pkt count for src-grp */ 79 unsigned int mfcc_byte_cnt; 80 unsigned int mfcc_wrong_if; 81 int mfcc_expire; 82 }; 83 84 /* Group count retrieval for mrouted */ 85 struct sioc_sg_req { 86 struct in_addr src; 87 struct in_addr grp; 88 unsigned long pktcnt; 89 unsigned long bytecnt; 90 unsigned long wrong_if; 91 }; 92 93 /* To get vif packet counts */ 94 struct sioc_vif_req { 95 vifi_t vifi; /* Which iface */ 96 unsigned long icount; /* In packets */ 97 unsigned long ocount; /* Out packets */ 98 unsigned long ibytes; /* In bytes */ 99 unsigned long obytes; /* Out bytes */ 100 }; 101 102 /* This is the format the mroute daemon expects to see IGMP control 103 * data. Magically happens to be like an IP packet as per the original 104 */ 105 struct igmpmsg { 106 __u32 unused1,unused2; 107 unsigned char im_msgtype; /* What is this */ 108 unsigned char im_mbz; /* Must be zero */ 109 unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */ 110 unsigned char unused3; 111 struct in_addr im_src,im_dst; 112 }; 113 114 /* ipmr netlink table attributes */ 115 enum { 116 IPMRA_TABLE_UNSPEC, 117 IPMRA_TABLE_ID, 118 IPMRA_TABLE_CACHE_RES_QUEUE_LEN, 119 IPMRA_TABLE_MROUTE_REG_VIF_NUM, 120 IPMRA_TABLE_MROUTE_DO_ASSERT, 121 IPMRA_TABLE_MROUTE_DO_PIM, 122 IPMRA_TABLE_VIFS, 123 IPMRA_TABLE_MROUTE_DO_WRVIFWHOLE, 124 __IPMRA_TABLE_MAX 125 }; 126 #define IPMRA_TABLE_MAX (__IPMRA_TABLE_MAX - 1) 127 128 /* ipmr netlink vif attribute format 129 * [ IPMRA_TABLE_VIFS ] - nested attribute 130 * [ IPMRA_VIF ] - nested attribute 131 * [ IPMRA_VIFA_xxx ] 132 */ 133 enum { 134 IPMRA_VIF_UNSPEC, 135 IPMRA_VIF, 136 __IPMRA_VIF_MAX 137 }; 138 #define IPMRA_VIF_MAX (__IPMRA_VIF_MAX - 1) 139 140 /* vif-specific attributes */ 141 enum { 142 IPMRA_VIFA_UNSPEC, 143 IPMRA_VIFA_IFINDEX, 144 IPMRA_VIFA_VIF_ID, 145 IPMRA_VIFA_FLAGS, 146 IPMRA_VIFA_BYTES_IN, 147 IPMRA_VIFA_BYTES_OUT, 148 IPMRA_VIFA_PACKETS_IN, 149 IPMRA_VIFA_PACKETS_OUT, 150 IPMRA_VIFA_LOCAL_ADDR, 151 IPMRA_VIFA_REMOTE_ADDR, 152 IPMRA_VIFA_PAD, 153 __IPMRA_VIFA_MAX 154 }; 155 #define IPMRA_VIFA_MAX (__IPMRA_VIFA_MAX - 1) 156 157 /* ipmr netlink cache report attributes */ 158 enum { 159 IPMRA_CREPORT_UNSPEC, 160 IPMRA_CREPORT_MSGTYPE, 161 IPMRA_CREPORT_VIF_ID, 162 IPMRA_CREPORT_SRC_ADDR, 163 IPMRA_CREPORT_DST_ADDR, 164 IPMRA_CREPORT_PKT, 165 __IPMRA_CREPORT_MAX 166 }; 167 #define IPMRA_CREPORT_MAX (__IPMRA_CREPORT_MAX - 1) 168 169 /* That's all usermode folks */ 170 171 #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ 172 173 /* Pseudo messages used by mrouted */ 174 #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ 175 #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ 176 #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ 177 #define IGMPMSG_WRVIFWHOLE 4 /* For PIM Register and assert processing */ 178 179 #endif /* _UAPI__LINUX_MROUTE_H */ 180