Edit: mroute6.h
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __LINUX_MROUTE6_H #define __LINUX_MROUTE6_H #include <linux/kernel.h> #include <linux/types.h> #include <linux/sockios.h> #include <linux/in6.h> /* For struct sockaddr_in6. */ /* * Based on the MROUTING 3.5 defines primarily to keep * source compatibility with BSD. * * See the pim6sd code for the original history. * * Protocol Independent Multicast (PIM) data structures included * Carlos Picoto (cap@di.fc.ul.pt) * */ #define MRT6_BASE 200 #define MRT6_INIT (MRT6_BASE) /* Activate the kernel mroute code */ #define MRT6_DONE (MRT6_BASE+1) /* Shutdown the kernel mroute */ #define MRT6_ADD_MIF (MRT6_BASE+2) /* Add a virtual interface */ #define MRT6_DEL_MIF (MRT6_BASE+3) /* Delete a virtual interface */ #define MRT6_ADD_MFC (MRT6_BASE+4) /* Add a multicast forwarding entry */ #define MRT6_DEL_MFC (MRT6_BASE+5) /* Delete a multicast forwarding entry */ #define MRT6_VERSION (MRT6_BASE+6) /* Get the kernel multicast version */ #define MRT6_ASSERT (MRT6_BASE+7) /* Activate PIM assert mode */ #define MRT6_PIM (MRT6_BASE+8) /* enable PIM code */ #define MRT6_TABLE (MRT6_BASE+9) /* Specify mroute table ID */ #define MRT6_ADD_MFC_PROXY (MRT6_BASE+10) /* Add a (*,*|G) mfc entry */ #define MRT6_DEL_MFC_PROXY (MRT6_BASE+11) /* Del a (*,*|G) mfc entry */ #define MRT6_MAX (MRT6_BASE+11) #define SIOCGETMIFCNT_IN6 SIOCPROTOPRIVATE /* IP protocol privates */ #define SIOCGETSGCNT_IN6 (SIOCPROTOPRIVATE+1) #define SIOCGETRPF (SIOCPROTOPRIVATE+2) #define MAXMIFS 32 typedef unsigned long mifbitmap_t; /* User mode code depends on this lot */ typedef unsigned short mifi_t; #define ALL_MIFS ((mifi_t)(-1)) #ifndef IF_SETSIZE #define IF_SETSIZE 256 #endif typedef __u32 if_mask; #define NIFBITS (sizeof(if_mask) * 8) /* bits per mask */ typedef struct if_set { if_mask ifs_bits[__KERNEL_DIV_ROUND_UP(IF_SETSIZE, NIFBITS)]; } if_set; #define IF_SET(n, p) ((p)->ifs_bits[(n)/NIFBITS] |= (1 << ((n) % NIFBITS))) #define IF_CLR(n, p) ((p)->ifs_bits[(n)/NIFBITS] &= ~(1 << ((n) % NIFBITS))) #define IF_ISSET(n, p) ((p)->ifs_bits[(n)/NIFBITS] & (1 << ((n) % NIFBITS))) #define IF_COPY(f, t) bcopy(f, t, sizeof(*(f))) #define IF_ZERO(p) bzero(p, sizeof(*(p))) /* * Passed by mrouted for an MRT_ADD_MIF - again we use the * mrouted 3.6 structures for compatibility */ struct mif6ctl { mifi_t mif6c_mifi; /* Index of MIF */ unsigned char mif6c_flags; /* MIFF_ flags */ unsigned char vifc_threshold; /* ttl limit */ __u16 mif6c_pifi; /* the index of the physical IF */ unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ }; #define MIFF_REGISTER 0x1 /* register vif */ /* * Cache manipulation structures for mrouted and PIMd */ struct mf6cctl { struct sockaddr_in6 mf6cc_origin; /* Origin of mcast */ struct sockaddr_in6 mf6cc_mcastgrp; /* Group in question */ mifi_t mf6cc_parent; /* Where it arrived */ struct if_set mf6cc_ifset; /* Where it is going */ }; /* * Group count retrieval for pim6sd */ struct sioc_sg_req6 { struct sockaddr_in6 src; struct sockaddr_in6 grp; unsigned long pktcnt; unsigned long bytecnt; unsigned long wrong_if; }; /* * To get vif packet counts */ struct sioc_mif_req6 { mifi_t mifi; /* Which iface */ unsigned long icount; /* In packets */ unsigned long ocount; /* Out packets */ unsigned long ibytes; /* In bytes */ unsigned long obytes; /* Out bytes */ }; /* * That's all usermode folks */ /* * Structure used to communicate from kernel to multicast router. * We'll overlay the structure onto an MLD header (not an IPv6 heder like igmpmsg{} * used for IPv4 implementation). This is because this structure will be passed via an * IPv6 raw socket, on which an application will only receiver the payload i.e the data after * the IPv6 header and all the extension headers. (See section 3 of RFC 3542) */ struct mrt6msg { #define MRT6MSG_NOCACHE 1 #define MRT6MSG_WRONGMIF 2 #define MRT6MSG_WHOLEPKT 3 /* used for use level encap */ __u8 im6_mbz; /* must be zero */ __u8 im6_msgtype; /* what type of message */ __u16 im6_mif; /* mif rec'd on */ __u32 im6_pad; /* padding for 64 bit arch */ struct in6_addr im6_src, im6_dst; }; /* ip6mr netlink cache report attributes */ enum { IP6MRA_CREPORT_UNSPEC, IP6MRA_CREPORT_MSGTYPE, IP6MRA_CREPORT_MIF_ID, IP6MRA_CREPORT_SRC_ADDR, IP6MRA_CREPORT_DST_ADDR, IP6MRA_CREPORT_PKT, __IP6MRA_CREPORT_MAX }; #define IP6MRA_CREPORT_MAX (__IP6MRA_CREPORT_MAX - 1) #endif /* __LINUX_MROUTE6_H */
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