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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI__LINUX_MROUTE_H3#define _UAPI__LINUX_MROUTE_H4 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 keep10 * source compatibility with BSD.11 *12 * See the mrouted code for the original history.13 *14 * Protocol Independent Multicast (PIM) data structures included15 * Carlos Picoto (cap@di.fc.ul.pt)16 */17 18#define MRT_BASE 20019#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_FLUSH (MRT_BASE+12) /* Flush all mfc entries and/or vifs */32#define MRT_MAX (MRT_BASE+12)33 34#define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */35#define SIOCGETSGCNT (SIOCPROTOPRIVATE+1)36#define SIOCGETRPF (SIOCPROTOPRIVATE+2)37 38/* MRT_FLUSH optional flags */39#define MRT_FLUSH_MFC 1 /* Flush multicast entries */40#define MRT_FLUSH_MFC_STATIC 2 /* Flush static multicast entries */41#define MRT_FLUSH_VIFS 4 /* Flush multicast vifs */42#define MRT_FLUSH_VIFS_STATIC 8 /* Flush static multicast vifs */43 44#define MAXVIFS 3245typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */46typedef unsigned short vifi_t;47#define ALL_VIFS ((vifi_t)(-1))48 49/* Same idea as select */50 51#define VIFM_SET(n,m) ((m)|=(1<<(n)))52#define VIFM_CLR(n,m) ((m)&=~(1<<(n)))53#define VIFM_ISSET(n,m) ((m)&(1<<(n)))54#define VIFM_CLRALL(m) ((m)=0)55#define VIFM_COPY(mfrom,mto) ((mto)=(mfrom))56#define VIFM_SAME(m1,m2) ((m1)==(m2))57 58/* Passed by mrouted for an MRT_ADD_VIF - again we use the59 * mrouted 3.6 structures for compatibility60 */61struct vifctl {62 vifi_t vifc_vifi; /* Index of VIF */63 unsigned char vifc_flags; /* VIFF_ flags */64 unsigned char vifc_threshold; /* ttl limit */65 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */66 union {67 struct in_addr vifc_lcl_addr; /* Local interface address */68 int vifc_lcl_ifindex; /* Local interface index */69 };70 struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */71};72 73#define VIFF_TUNNEL 0x1 /* IPIP tunnel */74#define VIFF_SRCRT 0x2 /* NI */75#define VIFF_REGISTER 0x4 /* register vif */76#define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of77 vifc_lcl_addr to find an interface */78 79/* Cache manipulation structures for mrouted and PIMd */80struct mfcctl {81 struct in_addr mfcc_origin; /* Origin of mcast */82 struct in_addr mfcc_mcastgrp; /* Group in question */83 vifi_t mfcc_parent; /* Where it arrived */84 unsigned char mfcc_ttls[MAXVIFS]; /* Where it is going */85 unsigned int mfcc_pkt_cnt; /* pkt count for src-grp */86 unsigned int mfcc_byte_cnt;87 unsigned int mfcc_wrong_if;88 int mfcc_expire;89};90 91/* Group count retrieval for mrouted */92struct sioc_sg_req {93 struct in_addr src;94 struct in_addr grp;95 unsigned long pktcnt;96 unsigned long bytecnt;97 unsigned long wrong_if;98};99 100/* To get vif packet counts */101struct sioc_vif_req {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/* This is the format the mroute daemon expects to see IGMP control110 * data. Magically happens to be like an IP packet as per the original111 */112struct igmpmsg {113 __u32 unused1,unused2;114 unsigned char im_msgtype; /* What is this */115 unsigned char im_mbz; /* Must be zero */116 unsigned char im_vif; /* Low 8 bits of Interface */117 unsigned char im_vif_hi; /* High 8 bits of Interface */118 struct in_addr im_src,im_dst;119};120 121/* ipmr netlink table attributes */122enum {123 IPMRA_TABLE_UNSPEC,124 IPMRA_TABLE_ID,125 IPMRA_TABLE_CACHE_RES_QUEUE_LEN,126 IPMRA_TABLE_MROUTE_REG_VIF_NUM,127 IPMRA_TABLE_MROUTE_DO_ASSERT,128 IPMRA_TABLE_MROUTE_DO_PIM,129 IPMRA_TABLE_VIFS,130 IPMRA_TABLE_MROUTE_DO_WRVIFWHOLE,131 __IPMRA_TABLE_MAX132};133#define IPMRA_TABLE_MAX (__IPMRA_TABLE_MAX - 1)134 135/* ipmr netlink vif attribute format136 * [ IPMRA_TABLE_VIFS ] - nested attribute137 * [ IPMRA_VIF ] - nested attribute138 * [ IPMRA_VIFA_xxx ]139 */140enum {141 IPMRA_VIF_UNSPEC,142 IPMRA_VIF,143 __IPMRA_VIF_MAX144};145#define IPMRA_VIF_MAX (__IPMRA_VIF_MAX - 1)146 147/* vif-specific attributes */148enum {149 IPMRA_VIFA_UNSPEC,150 IPMRA_VIFA_IFINDEX,151 IPMRA_VIFA_VIF_ID,152 IPMRA_VIFA_FLAGS,153 IPMRA_VIFA_BYTES_IN,154 IPMRA_VIFA_BYTES_OUT,155 IPMRA_VIFA_PACKETS_IN,156 IPMRA_VIFA_PACKETS_OUT,157 IPMRA_VIFA_LOCAL_ADDR,158 IPMRA_VIFA_REMOTE_ADDR,159 IPMRA_VIFA_PAD,160 __IPMRA_VIFA_MAX161};162#define IPMRA_VIFA_MAX (__IPMRA_VIFA_MAX - 1)163 164/* ipmr netlink cache report attributes */165enum {166 IPMRA_CREPORT_UNSPEC,167 IPMRA_CREPORT_MSGTYPE,168 IPMRA_CREPORT_VIF_ID,169 IPMRA_CREPORT_SRC_ADDR,170 IPMRA_CREPORT_DST_ADDR,171 IPMRA_CREPORT_PKT,172 IPMRA_CREPORT_TABLE,173 __IPMRA_CREPORT_MAX174};175#define IPMRA_CREPORT_MAX (__IPMRA_CREPORT_MAX - 1)176 177/* That's all usermode folks */178 179#define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */180 181/* Pseudo messages used by mrouted */182#define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */183#define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */184#define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */185#define IGMPMSG_WRVIFWHOLE 4 /* For PIM Register and assert processing */186 187#endif /* _UAPI__LINUX_MROUTE_H */188