diff options
author | Ralf Baechle <ralf@linux-mips.org> | 1997-01-07 02:33:00 +0000 |
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committer | <ralf@linux-mips.org> | 1997-01-07 02:33:00 +0000 |
commit | beb116954b9b7f3bb56412b2494b562f02b864b1 (patch) | |
tree | 120e997879884e1b9d93b265221b939d2ef1ade1 /include/linux/mroute.h | |
parent | 908d4681a1dc3792ecafbe64265783a86c4cccb6 (diff) |
Import of Linux/MIPS 2.1.14
Diffstat (limited to 'include/linux/mroute.h')
-rw-r--r-- | include/linux/mroute.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/include/linux/mroute.h b/include/linux/mroute.h new file mode 100644 index 000000000..6772a60f8 --- /dev/null +++ b/include/linux/mroute.h @@ -0,0 +1,173 @@ +#ifndef __LINUX_MROUTE_H +#define __LINUX_MROUTE_H + +#include <linux/sockios.h> +#include <linux/in.h> + +/* + * Based on the MROUTING 3.5 defines primarily to keep + * source compatibility with BSD. + * + * See the mrouted code for the original history. + * + */ + +#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 SIOCGETVIFCNT SIOCPROTOPRIVATE /* IP protocol privates */ +#define SIOCGETSGCNT (SIOCPROTOPRIVATE+1) + +#define MAXVIFS 32 +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) */ + struct in_addr vifc_lcl_addr; /* Our address */ + struct in_addr vifc_rmt_addr; /* IPIP tunnel addr */ +}; + +#define VIFF_TUNNEL 0x1 /* IPIP tunnel */ +#define VIFF_SRCRT 0x02 /* NI */ + +/* + * Cache manipulation structures for mrouted + */ + +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 */ +}; + +/* + * 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 +{ + unsigned long unused1,unused2; + unsigned char im_msgtype; /* What is this */ + unsigned char im_mbz; /* Must be zero */ + unsigned char im_vif; /* Interface (this ought to be a vifi_t!) */ + unsigned char unused3; + struct in_addr im_src,im_dst; +}; + +/* + * That's all usermode folks + */ + +#ifdef __KERNEL__ +extern struct sock *mroute_socket; +extern int ip_mroute_setsockopt(struct sock *, int, char *, int); +extern int ip_mroute_getsockopt(struct sock *, int, char *, int *); +extern int ipmr_ioctl(struct sock *sk, int cmd, unsigned long arg); +extern void mroute_close(struct sock *sk); +extern void ipmr_forward(struct sk_buff *skb, int is_frag); + + +struct vif_device +{ + struct device *dev; /* Device we are using */ + struct route *rt_cache; /* Tunnel route cache */ + unsigned long bytes_in,bytes_out; + unsigned long pkt_in,pkt_out; /* Statistics */ + unsigned long rate_limit; /* Traffic shaping (NI) */ + unsigned char threshold; /* TTL threshold */ + unsigned short flags; /* Control flags */ + unsigned long local,remote; /* Addresses(remote for tunnels)*/ +}; + +struct mfc_cache +{ + struct mfc_cache *next; /* Next entry on cache line */ + __u32 mfc_mcastgrp; /* Group the entry belongs to */ + __u32 mfc_origin; /* Source of packet */ + vifi_t mfc_parent; /* Source interface */ + struct timer_list mfc_timer; /* Expiry timer */ + int mfc_flags; /* Flags on line */ + struct sk_buff_head mfc_unresolved; /* Unresolved buffers */ + int mfc_queuelen; /* Unresolved buffer counter */ + unsigned char mfc_ttls[MAXVIFS]; /* TTL thresholds */ +}; + +#define MFC_QUEUED 1 +#define MFC_RESOLVED 2 + + +#define MFC_LINES 64 + +#ifdef __BIG_ENDIAN +#define MFC_HASH(a,b) ((((a)>>24)^((b)>>26))&(MFC_LINES-1)) +#else +#define MFC_HASH(a,b) (((a)^((b)>>2))&(MFC_LINES-1)) +#endif + +#endif + +/* + * Pseudo messages used by mrouted + */ + +#define IGMPMSG_NOCACHE 1 /* Kernel cache fill request to mrouted */ +#define IGMPMSG_WRONGVIF 2 /* For PIM assert processing (unused) */ + +#endif |