| ip_mroute.c (12579) | ip_mroute.c (12820) |
|---|---|
| 1/* 2 * IP multicast forwarding procedures 3 * 4 * Written by David Waitzman, BBN Labs, August 1988. 5 * Modified by Steve Deering, Stanford, February 1989. 6 * Modified by Mark J. Steiglitz, Stanford, May, 1991 7 * Modified by Van Jacobson, LBL, January 1993 8 * Modified by Ajit Thyagarajan, PARC, August 1993 9 * Modified by Bill Fenner, PARC, April 1995 10 * 11 * MROUTING Revision: 3.5 | 1/* 2 * IP multicast forwarding procedures 3 * 4 * Written by David Waitzman, BBN Labs, August 1988. 5 * Modified by Steve Deering, Stanford, February 1989. 6 * Modified by Mark J. Steiglitz, Stanford, May, 1991 7 * Modified by Van Jacobson, LBL, January 1993 8 * Modified by Ajit Thyagarajan, PARC, August 1993 9 * Modified by Bill Fenner, PARC, April 1995 10 * 11 * MROUTING Revision: 3.5 |
| 12 * $Id: ip_mroute.c,v 1.25 1995/11/14 20:34:16 phk Exp $ | 12 * $Id: ip_mroute.c,v 1.26 1995/12/02 19:38:03 bde Exp $ |
| 13 */ 14 15 16#include <sys/param.h> 17#include <sys/systm.h> 18#include <sys/mbuf.h> 19#include <sys/socket.h> 20#include <sys/socketvar.h> --- 46 unchanged lines hidden (view full) --- 67extern int _mrt_ioctl __P((int req, caddr_t data, struct proc *p)); 68 69/* 70 * Dummy routines and globals used when multicast routing is not compiled in. 71 */ 72 73struct socket *ip_mrouter = NULL; 74static u_int ip_mrtproto = 0; | 13 */ 14 15 16#include <sys/param.h> 17#include <sys/systm.h> 18#include <sys/mbuf.h> 19#include <sys/socket.h> 20#include <sys/socketvar.h> --- 46 unchanged lines hidden (view full) --- 67extern int _mrt_ioctl __P((int req, caddr_t data, struct proc *p)); 68 69/* 70 * Dummy routines and globals used when multicast routing is not compiled in. 71 */ 72 73struct socket *ip_mrouter = NULL; 74static u_int ip_mrtproto = 0; |
| 75struct mrtstat mrtstat; | 75static struct mrtstat mrtstat; |
| 76u_int rsvpdebug = 0; 77 78int 79_ip_mrouter_set(cmd, so, m) 80 int cmd; 81 struct socket *so; 82 struct mbuf *m; 83{ --- 130 unchanged lines hidden (view full) --- 214extern void X_ipip_input __P((struct mbuf *m)); 215extern struct mrtstat mrtstat; 216static int ip_mrtproto; 217#endif 218 219#define NO_RTE_FOUND 0x1 220#define RTE_FOUND 0x2 221 | 76u_int rsvpdebug = 0; 77 78int 79_ip_mrouter_set(cmd, so, m) 80 int cmd; 81 struct socket *so; 82 struct mbuf *m; 83{ --- 130 unchanged lines hidden (view full) --- 214extern void X_ipip_input __P((struct mbuf *m)); 215extern struct mrtstat mrtstat; 216static int ip_mrtproto; 217#endif 218 219#define NO_RTE_FOUND 0x1 220#define RTE_FOUND 0x2 221 |
| 222struct mbuf *mfctable[MFCTBLSIZ]; 223u_char nexpire[MFCTBLSIZ]; 224struct vif viftable[MAXVIFS]; | 222static struct mbuf *mfctable[MFCTBLSIZ]; 223static u_char nexpire[MFCTBLSIZ]; 224static struct vif viftable[MAXVIFS]; |
| 225static u_int mrtdebug = 0; /* debug level */ 226#define DEBUG_MFC 0x02 227#define DEBUG_FORWARD 0x04 228#define DEBUG_EXPIRE 0x08 229#define DEBUG_XMIT 0x10 230static u_int tbfdebug = 0; /* tbf debug level */ 231static u_int rsvpdebug = 0; /* rsvp debug level */ 232 233#define EXPIRE_TIMEOUT (hz / 4) /* 4x / second */ 234#define UPCALL_EXPIRE 6 /* number of timeouts */ 235 236/* 237 * Define the token bucket filter structures 238 * tbftable -> each vif has one of these for storing info 239 */ 240 | 225static u_int mrtdebug = 0; /* debug level */ 226#define DEBUG_MFC 0x02 227#define DEBUG_FORWARD 0x04 228#define DEBUG_EXPIRE 0x08 229#define DEBUG_XMIT 0x10 230static u_int tbfdebug = 0; /* tbf debug level */ 231static u_int rsvpdebug = 0; /* rsvp debug level */ 232 233#define EXPIRE_TIMEOUT (hz / 4) /* 4x / second */ 234#define UPCALL_EXPIRE 6 /* number of timeouts */ 235 236/* 237 * Define the token bucket filter structures 238 * tbftable -> each vif has one of these for storing info 239 */ 240 |
| 241struct tbf tbftable[MAXVIFS]; | 241static struct tbf tbftable[MAXVIFS]; |
| 242#define TBF_REPROCESS (hz / 100) /* 100x / second */ 243 244/* 245 * 'Interfaces' associated with decapsulator (so we can tell 246 * packets that went through it from ones that get reflected 247 * by a broken gateway). These interfaces are never linked into 248 * the system ifnet list & no routes point to them. I.e., packets 249 * can't be sent this way. They only exist as a placeholder for 250 * multicast source verification. 251 */ | 242#define TBF_REPROCESS (hz / 100) /* 100x / second */ 243 244/* 245 * 'Interfaces' associated with decapsulator (so we can tell 246 * packets that went through it from ones that get reflected 247 * by a broken gateway). These interfaces are never linked into 248 * the system ifnet list & no routes point to them. I.e., packets 249 * can't be sent this way. They only exist as a placeholder for 250 * multicast source verification. 251 */ |
| 252struct ifnet multicast_decap_if[MAXVIFS]; | 252static struct ifnet multicast_decap_if[MAXVIFS]; |
| 253 254#define ENCAP_TTL 64 255#define ENCAP_PROTO IPPROTO_IPIP /* 4 */ 256 257/* prototype IP hdr for encapsulated packets */ 258static struct ip multicast_encap_iphdr = { 259#if BYTE_ORDER == LITTLE_ENDIAN 260 sizeof(struct ip) >> 2, IPVERSION, --- 2042 unchanged lines hidden --- | 253 254#define ENCAP_TTL 64 255#define ENCAP_PROTO IPPROTO_IPIP /* 4 */ 256 257/* prototype IP hdr for encapsulated packets */ 258static struct ip multicast_encap_iphdr = { 259#if BYTE_ORDER == LITTLE_ENDIAN 260 sizeof(struct ip) >> 2, IPVERSION, --- 2042 unchanged lines hidden --- |