| 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@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 | #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ |
|---|
| 129 | |
|---|
| 130 | /* |
|---|
| 131 | * Pseudo messages used by mrouted |
|---|
| 132 | */ |
|---|
| 133 | |
|---|
| 134 | #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ |
|---|
| 135 | #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ |
|---|
| 136 | #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ |
|---|
| 137 | |
|---|
| 138 | #endif |
|---|
