diff options
Diffstat (limited to 'include/linux/mroute.h')
| -rw-r--r-- | include/linux/mroute.h | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/include/linux/mroute.h b/include/linux/mroute.h new file mode 100644 index 0000000..a0bfdcb --- /dev/null +++ b/include/linux/mroute.h @@ -0,0 +1,193 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +#ifndef _UAPI__LINUX_MROUTE_H +#define _UAPI__LINUX_MROUTE_H + +#ifdef __LINUX__ +#include <linux/sockios.h> +#include <linux/types.h> +#endif +#include <netinet/in.h> /* For struct in_addr. */ + +/* Based on the MROUTING 3.5 defines primarily to keep + * source compatibility with BSD. + * + * See the mrouted code for the original history. + * + * Protocol Independent Multicast (PIM) data structures included + * Carlos Picoto (cap@di.fc.ul.pt) + */ + +#define MRT_BASE 200 +#define MRT_INIT (MRT_BASE) /* Activate the kernel mroute code */ +#define MRT_DONE (MRT_BASE+1) /* Shutdown the kernel mroute */ +#define MRT_ADD_VIF (MRT_BASE+2) /* Add a virtual interface */ +#define MRT_DEL_VIF (MRT_BASE+3) /* Delete a virtual interface */ +#define MRT_ADD_MFC (MRT_BASE+4) /* Add a multicast forwarding entry */ +#define MRT_DEL_MFC (MRT_BASE+5) /* Delete a multicast forwarding entry */ +#define MRT_VERSION (MRT_BASE+6) /* Get the kernel multicast version */ +#define MRT_ASSERT (MRT_BASE+7) /* Activate PIM assert mode */ +#define MRT_PIM (MRT_BASE+8) /* enable PIM code */ +#define MRT_TABLE (MRT_BASE+9) /* Specify mroute table ID */ +#define MRT_ADD_MFC_PROXY (MRT_BASE+10) /* Add a (*,*|G) mfc entry */ +#define MRT_DEL_MFC_PROXY (MRT_BASE+11) /* Del a (*,*|G) mfc entry */ +#define MRT_FLUSH (MRT_BASE+12) /* Flush all mfc entries and/or vifs */ +#define MRT_MAX (MRT_BASE+12) + +#ifndef SIOCGETVIFCNT +#define SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ +#define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) +#define SIOCGETRPF (SIOCPROTOPRIVATE+2) +#endif + +#ifndef MAXVIFS +#define MAXVIFS 32 +#endif +/* MRT_FLUSH optional flags */ +#define MRT_FLUSH_MFC 1 /* Flush multicast entries */ +#define MRT_FLUSH_MFC_STATIC 2 /* Flush static multicast entries */ +#define MRT_FLUSH_VIFS 4 /* Flush multicast vifs */ +#define MRT_FLUSH_VIFS_STATIC 8 /* Flush static multicast vifs */ + +typedef unsigned long vifbitmap_t; /* User mode code depends on this lot */ +typedef unsigned short vifi_t; +#define ALL_VIFS ((vifi_t)(-1)) + +/* Same idea as select */ + +#define VIFM_SET(n,m) ((m)|=(1<<(n))) +#define VIFM_CLR(n,m) ((m)&=~(1<<(n))) +#define VIFM_ISSET(n,m) ((m)&(1<<(n))) +#define VIFM_CLRALL(m) ((m)=0) +#define VIFM_COPY(mfrom,mto) ((mto)=(mfrom)) +#define VIFM_SAME(m1,m2) ((m1)==(m2)) + +/* Passed by mrouted for an MRT_ADD_VIF - again we use the + * mrouted 3.6 structures for compatibility + */ +struct vifctl { + vifi_t vifc_vifi; /* Index of VIF */ + unsigned char vifc_flags; /* VIFF_ flags */ + unsigned char vifc_threshold; /* ttl limit */ + unsigned int vifc_rate_limit; /* Rate limiter values (NI) */ + union { + struct in_addr vifc_lcl_addr; /* Local interface address */ + int vifc_lcl_ifindex; /* Local interface index */ + }; + struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ +}; + +#define VIFF_TUNNEL 0x1 /* IPIP tunnel */ +#define VIFF_SRCRT 0x2 /* NI */ +#define VIFF_REGISTER 0x4 /* register vif */ +#define VIFF_USE_IFINDEX 0x8 /* use vifc_lcl_ifindex instead of + vifc_lcl_addr to find an interface */ + +/* Cache manipulation structures for mrouted and PIMd */ +struct mfcctl { + struct in_addr mfcc_origin; /* Origin of mcast */ + struct in_addr mfcc_mcastgrp; /* Group in question */ + vifi_t mfcc_parent; /* Where it arrived */ + unsigned char mfcc_ttls[MAXVIFS]; /* Where it is going */ + unsigned int mfcc_pkt_cnt; /* pkt count for src-grp */ + unsigned int mfcc_byte_cnt; + unsigned int mfcc_wrong_if; + int mfcc_expire; +}; + +/* Group count retrieval for mrouted */ +struct sioc_sg_req { + struct in_addr src; + struct in_addr grp; + unsigned long pktcnt; + unsigned long bytecnt; + unsigned long wrong_if; +}; + +/* To get vif packet counts */ +struct sioc_vif_req { + vifi_t vifi; /* Which iface */ + unsigned long icount; /* In packets */ + unsigned long ocount; /* Out packets */ + unsigned long ibytes; /* In bytes */ + unsigned long obytes; /* Out bytes */ +}; + +/* This is the format the mroute daemon expects to see IGMP control + * data. Magically happens to be like an IP packet as per the original + */ +struct igmpmsg { + uint32_t unused1,unused2; + unsigned char im_msgtype; /* What is this */ + unsigned char im_mbz; /* Must be zero */ + unsigned char im_vif; /* Low 8 bits of Interface */ + unsigned char im_vif_hi; /* High 8 bits of Interface */ + struct in_addr im_src,im_dst; +}; + +/* ipmr netlink table attributes */ +enum { + IPMRA_TABLE_UNSPEC, + IPMRA_TABLE_ID, + IPMRA_TABLE_CACHE_RES_QUEUE_LEN, + IPMRA_TABLE_MROUTE_REG_VIF_NUM, + IPMRA_TABLE_MROUTE_DO_ASSERT, + IPMRA_TABLE_MROUTE_DO_PIM, + IPMRA_TABLE_VIFS, + IPMRA_TABLE_MROUTE_DO_WRVIFWHOLE, + __IPMRA_TABLE_MAX +}; +#define IPMRA_TABLE_MAX (__IPMRA_TABLE_MAX - 1) + +/* ipmr netlink vif attribute format + * [ IPMRA_TABLE_VIFS ] - nested attribute + * [ IPMRA_VIF ] - nested attribute + * [ IPMRA_VIFA_xxx ] + */ +enum { + IPMRA_VIF_UNSPEC, + IPMRA_VIF, + __IPMRA_VIF_MAX +}; +#define IPMRA_VIF_MAX (__IPMRA_VIF_MAX - 1) + +/* vif-specific attributes */ +enum { + IPMRA_VIFA_UNSPEC, + IPMRA_VIFA_IFINDEX, + IPMRA_VIFA_VIF_ID, + IPMRA_VIFA_FLAGS, + IPMRA_VIFA_BYTES_IN, + IPMRA_VIFA_BYTES_OUT, + IPMRA_VIFA_PACKETS_IN, + IPMRA_VIFA_PACKETS_OUT, + IPMRA_VIFA_LOCAL_ADDR, + IPMRA_VIFA_REMOTE_ADDR, + IPMRA_VIFA_PAD, + __IPMRA_VIFA_MAX +}; +#define IPMRA_VIFA_MAX (__IPMRA_VIFA_MAX - 1) + +/* ipmr netlink cache report attributes */ +enum { + IPMRA_CREPORT_UNSPEC, + IPMRA_CREPORT_MSGTYPE, + IPMRA_CREPORT_VIF_ID, + IPMRA_CREPORT_SRC_ADDR, + IPMRA_CREPORT_DST_ADDR, + IPMRA_CREPORT_PKT, + IPMRA_CREPORT_TABLE, + __IPMRA_CREPORT_MAX +}; +#define IPMRA_CREPORT_MAX (__IPMRA_CREPORT_MAX - 1) + +/* That's all usermode folks */ + +#define MFC_ASSERT_THRESH (3*HZ) /* Maximal freq. of asserts */ + +/* Pseudo messages used by mrouted */ +#define IGMPMSG_NOCACHE 1 /* Kern cache fill request to mrouted */ +#define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ +#define IGMPMSG_WHOLEPKT 3 /* For PIM Register processing */ +#define IGMPMSG_WRVIFWHOLE 4 /* For PIM Register and assert processing */ + +#endif /* _UAPI__LINUX_MROUTE_H */ |