1 #ifndef __LINUX_MROUTE_H 2 #define __LINUX_MROUTE_H 3 4 #include <linux/sockios.h> 5 #include <linux/types.h> 6 #include <linux/pim.h> 7 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 19 #define MRT_BASE 200 20 #define MRT_INIT (MRT_BASE) /* Activate the kernel mroute code */ 21 #define MRT_DONE (MRT_BASE+1) /* Shutdown the kernel mroute */ 22 #define MRT_ADD_VIF (MRT_BASE+2) /* Add a virtual interface */ 23 #define MRT_DEL_VIF (MRT_BASE+3) /* Delete a virtual interface */ 24 #define MRT_ADD_MFC (MRT_BASE+4) /* Add a multicast forwarding entry */ 25 #define MRT_DEL_MFC (MRT_BASE+5) /* Delete a multicast forwarding entry */ 26 #define MRT_VERSION (MRT_BASE+6) /* Get the kernel multicast version */ 27 #define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */ 28 #define MRT_PIM (MRT_BASE+8) /* enable PIM code */ 29 30 #define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ 31 #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) 32 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 33 34 #define MAXVIFS 32 35 typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ 36 typedef unsigned short vifi_t; 37 #define ALL_VIFS ((vifi_t)(-1)) 38 39 /* 40 * Same idea as select 41 */ 42 43 #define VIFM_SET(n,m) ((m)|=(1<<(n))) 44 #define VIFM_CLR(n,m) ((m)&=~(1<<(n))) 45 #define VIFM_ISSET(n,m) ((m)&(1<<(n))) 46 #define VIFM_CLRALL(m) ((m)=0) 47 #define VIFM_COPY(mfrom,mto) ((mto)=(mfrom)) 48 #define VIFM_SAME(m1,m2) ((m1)==(m2)) 49 50 /* 51 * Passed by mrouted for an MRT_ADD_VIF - again we use the 52 * mrouted 3.6 structures for compatibility 53 */ 54 55 struct vifctl { 56 vifi_t vifc_vifi; /* Index of VIF */ 57 unsigned char vifc_flags; /* VIFF_ flags */ 58 unsigned char vifc_threshold; /* ttl limit */ 59 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ 60 struct in_addr vifc_lcl_addr; /* Our address */ 61 struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ 62 }; 63 64 #define VIFF_TUNNEL 0x1 /* IPIP tunnel */ 65 #define VIFF_SRCRT 0x2 /* NI */ 66 #define VIFF_REGISTER 0x4 /* register vif */ 67 68 /* 69 * Cache manipulation structures for mrouted and PIMd 70 */ 71 72 struct mfcctl 73 { 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 /* 85 * Group count retrieval for mrouted 86 */ 87 88 struct sioc_sg_req 89 { 90 struct in_addr src; 91 struct in_addr grp; 92 unsigned long pktcnt; 93 unsigned long bytecnt; 94 unsigned long wrong_if; 95 }; 96 97 /* 98 * To get vif packet counts 99 */ 100 101 struct sioc_vif_req 102 { 103 vifi_t vifi; /* 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 * This is the format the mroute daemon expects to see IGMP control 112 * data. Magically happens to be like an IP packet as per the original 113 */ 114 115 struct igmpmsg 116 { 117 __u32 unused1,unused2; 118 unsigned char im_msgtype; /* What is this */ 119 unsigned char im_mbz; /* Must be zero */ 120 unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */ 121 unsigned char unused3; 122 struct in_addr im_src,im_dst; 123 }; 124 125 /* 126 * That's all usermode folks 127 */ 128 129 130 131 #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ 132 133 /* 134 * Pseudo messages used by mrouted 135 */ 136 137 #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ 138 #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ 139 #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ 140 141 142 #endif 143