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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI__LINUX_MROUTE6_H3#define _UAPI__LINUX_MROUTE6_H4 5#include <linux/const.h>6#include <linux/types.h>7#include <linux/sockios.h>8#include <linux/in6.h> /* For struct sockaddr_in6. */9 10/*11 * Based on the MROUTING 3.5 defines primarily to keep12 * source compatibility with BSD.13 *14 * See the pim6sd code for the original history.15 *16 * Protocol Independent Multicast (PIM) data structures included17 * Carlos Picoto (cap@di.fc.ul.pt)18 *19 */20 21#define MRT6_BASE 20022#define MRT6_INIT (MRT6_BASE) /* Activate the kernel mroute code */23#define MRT6_DONE (MRT6_BASE+1) /* Shutdown the kernel mroute */24#define MRT6_ADD_MIF (MRT6_BASE+2) /* Add a virtual interface */25#define MRT6_DEL_MIF (MRT6_BASE+3) /* Delete a virtual interface */26#define MRT6_ADD_MFC (MRT6_BASE+4) /* Add a multicast forwarding entry */27#define MRT6_DEL_MFC (MRT6_BASE+5) /* Delete a multicast forwarding entry */28#define MRT6_VERSION (MRT6_BASE+6) /* Get the kernel multicast version */29#define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */30#define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */31#define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */32#define MRT6_ADD_MFC_PROXY (MRT6_BASE+10) /* Add a (*,*|G) mfc entry */33#define MRT6_DEL_MFC_PROXY (MRT6_BASE+11) /* Del a (*,*|G) mfc entry */34#define MRT6_FLUSH (MRT6_BASE+12) /* Flush all mfc entries and/or vifs */35#define MRT6_MAX (MRT6_BASE+12)36 37#define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */38#define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1)39#define SIOCGETRPF (SIOCPROTOPRIVATE+2)40 41/* MRT6_FLUSH optional flags */42#define MRT6_FLUSH_MFC 1 /* Flush multicast entries */43#define MRT6_FLUSH_MFC_STATIC 2 /* Flush static multicast entries */44#define MRT6_FLUSH_MIFS 4 /* Flushing multicast vifs */45#define MRT6_FLUSH_MIFS_STATIC 8 /* Flush static multicast vifs */46 47#define MAXMIFS 3248typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */49typedef unsigned short mifi_t;50#define ALL_MIFS ((mifi_t)(-1))51 52#ifndef IF_SETSIZE53#define IF_SETSIZE 25654#endif55 56typedef __u32 if_mask;57#define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */58 59typedef struct if_set {60 if_mask ifs_bits[__KERNEL_DIV_ROUND_UP(IF_SETSIZE, NIFBITS)];61} if_set;62 63#define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS)))64#define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS)))65#define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS)))66#define IF_COPY(f, t) bcopy(f, t, sizeof(*(f)))67#define IF_ZERO(p) bzero(p, sizeof(*(p)))68 69/*70 * Passed by mrouted for an MRT_ADD_MIF - again we use the71 * mrouted 3.6 structures for compatibility72 */73 74struct mif6ctl {75 mifi_t mif6c_mifi; /* Index of MIF */76 unsigned char mif6c_flags; /* MIFF_ flags */77 unsigned char vifc_threshold; /* ttl limit */78 __u16 mif6c_pifi; /* the index of the physical IF */79 unsigned int vifc_rate_limit; /* Rate limiter values (NI) */80};81 82#define MIFF_REGISTER 0x1 /* register vif */83 84/*85 * Cache manipulation structures for mrouted and PIMd86 */87 88struct mf6cctl {89 struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */90 struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */91 mifi_t mf6cc_parent; /* Where it arrived */92 struct if_set mf6cc_ifset; /* Where it is going */93};94 95/*96 * Group count retrieval for pim6sd97 */98 99struct sioc_sg_req6 {100 struct sockaddr_in6 src;101 struct sockaddr_in6 grp;102 unsigned long pktcnt;103 unsigned long bytecnt;104 unsigned long wrong_if;105};106 107/*108 * To get vif packet counts109 */110 111struct sioc_mif_req6 {112 mifi_t mifi; /* Which iface */113 unsigned long icount; /* In packets */114 unsigned long ocount; /* Out packets */115 unsigned long ibytes; /* In bytes */116 unsigned long obytes; /* Out bytes */117};118 119/*120 * That's all usermode folks121 */122 123 124 125/*126 * Structure used to communicate from kernel to multicast router.127 * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{}128 * used for IPv4 implementation). This is because this structure will be passed via an129 * IPv6 raw socket, on which an application will only receiver the payload i.e the data after130 * the IPv6 header and all the extension headers. (See section 3 of RFC 3542)131 */132 133struct mrt6msg {134#define MRT6MSG_NOCACHE 1135#define MRT6MSG_WRONGMIF 2136#define MRT6MSG_WHOLEPKT 3 /* used for use level encap */137#define MRT6MSG_WRMIFWHOLE 4 /* For PIM Register and assert processing */138 __u8 im6_mbz; /* must be zero */139 __u8 im6_msgtype; /* what type of message */140 __u16 im6_mif; /* mif rec'd on */141 __u32 im6_pad; /* padding for 64 bit arch */142 struct in6_addr im6_src, im6_dst;143};144 145/* ip6mr netlink cache report attributes */146enum {147 IP6MRA_CREPORT_UNSPEC,148 IP6MRA_CREPORT_MSGTYPE,149 IP6MRA_CREPORT_MIF_ID,150 IP6MRA_CREPORT_SRC_ADDR,151 IP6MRA_CREPORT_DST_ADDR,152 IP6MRA_CREPORT_PKT,153 __IP6MRA_CREPORT_MAX154};155#define IP6MRA_CREPORT_MAX (__IP6MRA_CREPORT_MAX - 1)156 157#endif /* _UAPI__LINUX_MROUTE6_H */158