1 #ifndef _UAPI__LINUX_MROUTE_H 2 #define _UAPI__LINUX_MROUTE_H 3 4 #include <linux/sockios.h> 5 #include <linux/types.h> 6 #include <linux/in.h> /* For struct in_addr. */ 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 #define MRT_BASE 200 18 #define MRT_INIT (MRT_BASE) /* Activate the kernel mroute code */ 19 #define MRT_DONE (MRT_BASE+1) /* Shutdown the kernel mroute */ 20 #define MRT_ADD_VIF (MRT_BASE+2) /* Add a virtual interface */ 21 #define MRT_DEL_VIF (MRT_BASE+3) /* Delete a virtual interface */ 22 #define MRT_ADD_MFC (MRT_BASE+4) /* Add a multicast forwarding entry */ 23 #define MRT_DEL_MFC (MRT_BASE+5) /* Delete a multicast forwarding entry */ 24 #define MRT_VERSION (MRT_BASE+6) /* Get the kernel multicast version */ 25 #define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */ 26 #define MRT_PIM (MRT_BASE+8) /* enable PIM code */ 27 #define MRT_TABLE (MRT_BASE+9) /* Specify mroute table ID */ 28 #define MRT_ADD_MFC_PROXY (MRT_BASE+10) /* Add a (*,*|G) mfc entry */ 29 #define MRT_DEL_MFC_PROXY (MRT_BASE+11) /* Del a (*,*|G) mfc entry */ 30 #define MRT_MAX (MRT_BASE+11) 31 32 #define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ 33 #define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) 34 #define SIOCGETRPF (SIOCPROTOPRIVATE+2) 35 36 #define MAXVIFS 32 37 typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ 38 typedef unsigned short vifi_t; 39 #define ALL_VIFS ((vifi_t)(-1)) 40 41 /* Same idea as select */ 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 /* Passed by mrouted for an MRT_ADD_VIF - again we use the 51 * mrouted 3.6 structures for compatibility 52 */ 53 struct vifctl { 54 vifi_t vifc_vifi; /* Index of VIF */ 55 unsigned char vifc_flags; /* VIFF_ flags */ 56 unsigned char vifc_threshold; /* ttl limit */ 57 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ 58 union { 59 struct in_addr vifc_lcl_addr; /* Local interface address */ 60 int vifc_lcl_ifindex; /* Local interface index */ 61 }; 62 struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ 63 }; 64 65 #define VIFF_TUNNEL 0x1 /* IPIP tunnel */ 66 #define VIFF_SRCRT 0x2 /* NI */ 67 #define VIFF_REGISTER 0x4 /* register vif */ 68 #define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of 69 vifc_lcl_addr to find an interface */ 70 71 /* Cache manipulation structures for mrouted and PIMd */ 72 struct mfcctl { 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 /* Group count retrieval for mrouted */ 84 struct sioc_sg_req { 85 struct in_addr src; 86 struct in_addr grp; 87 unsigned long pktcnt; 88 unsigned long bytecnt; 89 unsigned long wrong_if; 90 }; 91 92 /* To get vif packet counts */ 93 struct sioc_vif_req { 94 vifi_t vifi; /* Which iface */ 95 unsigned long icount; /* In packets */ 96 unsigned long ocount; /* Out packets */ 97 unsigned long ibytes; /* In bytes */ 98 unsigned long obytes; /* Out bytes */ 99 }; 100 101 /* This is the format the mroute daemon expects to see IGMP control 102 * data. Magically happens to be like an IP packet as per the original 103 */ 104 struct igmpmsg { 105 __u32 unused1,unused2; 106 unsigned char im_msgtype; /* What is this */ 107 unsigned char im_mbz; /* Must be zero */ 108 unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */ 109 unsigned char unused3; 110 struct in_addr im_src,im_dst; 111 }; 112 113 /* That's all usermode folks */ 114 115 #define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ 116 117 /* Pseudo messages used by mrouted */ 118 #define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ 119 #define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ 120 #define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ 121 122 #endif /* _UAPI__LINUX_MROUTE_H */ 123