1 #ifndef __LINUX_MROUTE_H 2 #define __LINUX_MROUTE_H 3 4 #include <linux/sockios.h> 5 #include <linux/in.h> 6 7 /* 8 * Based on the MROUTING 3.5 defines primarily to keep 9 * source compatibility with BSD. 10 * 11 * See the mrouted code for the original history. 12 * 13 * Protocol Independent Multicast (PIM) data structures included 14 * Carlos Picoto (cap (at) di.fc.ul.pt) 15 * 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 29 #define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ 30 #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) 31 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 32 33 #define MAXVIFS 32 34 typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ 35 typedef unsigned short vifi_t; 36 #define ALL_VIFS ((vifi_t)(-1)) 37 38 /* 39 * Same idea as select 40 */ 41 42 #define VIFM_SET(n,m) ((m)|=(1<<(n))) 43 #define VIFM_CLR(n,m) ((m)&=~(1<<(n))) 44 #define VIFM_ISSET(n,m) ((m)&(1<<(n))) 45 #define VIFM_CLRALL(m) ((m)=0) 46 #define VIFM_COPY(mfrom,mto) ((mto)=(mfrom)) 47 #define VIFM_SAME(m1,m2) ((m1)==(m2)) 48 49 /* 50 * Passed by mrouted for an MRT_ADD_VIF - again we use the 51 * mrouted 3.6 structures for compatibility 52 */ 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 struct in_addr vifc_lcl_addr; /* Our address */ 60 struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ 61 }; 62 63 #define VIFF_TUNNEL 0x1 /* IPIP tunnel */ 64 #define VIFF_SRCRT 0x2 /* NI */ 65 #define VIFF_REGISTER 0x4 /* register vif */ 66 67 /* 68 * Cache manipulation structures for mrouted and PIMd 69 */ 70 71 struct mfcctl 72 { 73 struct in_addr mfcc_origin; /* Origin of mcast */ 74 struct in_addr mfcc_mcastgrp; /* Group in question */ 75 vifi_t mfcc_parent; /* Where it arrived */ 76 unsigned char mfcc_ttls[MAXVIFS]; /* Where it is going */ 77 unsigned int mfcc_pkt_cnt; /* pkt count for src-grp */ 78 unsigned int mfcc_byte_cnt; 79 unsigned int mfcc_wrong_if; 80 int mfcc_expire; 81 }; 82 83 /* 84 * Group count retrieval for mrouted 85 */ 86 87 struct sioc_sg_req 88 { 89 struct in_addr src; 90 struct in_addr grp; 91 unsigned long pktcnt; 92 unsigned long bytecnt; 93 unsigned long wrong_if; 94 }; 95 96 /* 97 * To get vif packet counts 98 */ 99 100 struct sioc_vif_req 101 { 102 vifi_t vifi; /* Which iface */ 103 unsigned long icount; /* In packets */ 104 unsigned long ocount; /* Out packets */ 105 unsigned long ibytes; /* In bytes */ 106 unsigned long obytes; /* Out bytes */ 107 }; 108 109 /* 110 * This is the format the mroute daemon expects to see IGMP control 111 * data. Magically happens to be like an IP packet as per the original 112 */ 113 114 struct igmpmsg 115 { 116 __u32 unused1,unused2; 117 unsigned char im_msgtype; /* What is this */ 118 unsigned char im_mbz; /* Must be zero */ 119 unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */ 120 unsigned char unused3; 121 struct in_addr im_src,im_dst; 122 }; 123 124 /* 125 * That's all usermode folks 126 */ 127 128 129 130 #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ 131 132 /* 133 * Pseudo messages used by mrouted 134 */ 135 136 #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ 137 #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ 138 #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ 139 140 141 #endif 142
