1998/0313/ip/gre.c (diff list | history)

1998/0306/sys/src/9/ip/gre.c:39,47 – 1998/0313/sys/src/9/ip/gre.c:39,51 (short | long | prev | next)
1998/0306		uchar eproto[2]; /* encapsulation protocol */
1997/0327		} GREhdr; Proto gre; extern Fs fs; int gredebug;
1998/0313		typedef struct GREpriv GREpriv; struct GREpriv { /* non-MIB stats */ ulong csumerr; /* checksum errors */ ulong lenerr; /* short packet */ };
1997/0327		static char* greconnect(Conv *c, char **argv, int argc)
1998/0306/sys/src/9/ip/gre.c:75,81 – 1998/0313/sys/src/9/ip/gre.c:79,85
1997/0327
1997/0403		if(err != nil) return err; Fsconnected(&fs, c, nil);
1998/0313		Fsconnected(c, nil);
1997/0327
1997/0403		return nil;
1997/0327		}
1998/0306/sys/src/9/ip/gre.c:147,153 – 1998/0313/sys/src/9/ip/gre.c:151,157
1998/0306		v4tov6(laddr, ghp->src); if(ipcmp(laddr, v4prefix) == 0){ if(ipcmp(c->laddr, IPnoaddr) == 0) findlocalip(c->laddr, raddr); /* pick interface closest to dest */
1998/0313		findlocalip(c->p->f, c->laddr, raddr); /* pick interface closest to dest */
1998/0306		memmove(ghp->src, c->laddr + IPv4off, IPv4addrlen); }
1997/0530
1998/0306/sys/src/9/ip/gre.c:156,166 – 1998/0313/sys/src/9/ip/gre.c:160,170
1997/0522		ghp->frag[0] = 0; ghp->frag[1] = 0;
1997/0327		ipoput(bp, 0, c->ttl);
1998/0313		ipoput(c->p->f, bp, 0, c->ttl);
1997/0327		} static void
1998/0306		greiput(uchar*, Block *bp)
1998/0313		greiput(Proto *gre, uchar*, Block *bp)
1997/0327		{ int len; GREhdr *ghp;
1998/0306/sys/src/9/ip/gre.c:167,173 – 1998/0313/sys/src/9/ip/gre.c:171,179
1997/0327		Conv *c, **p; ushort eproto;
1998/0306		uchar raddr[IPaddrlen];
1998/0313		GREpriv *gpriv;
1997/0327
1998/0313		gpriv = gre->priv;
1997/0327		ghp = (GREhdr*)(bp->rp);
1998/0306		v4tov6(raddr, ghp->src);
1998/0306/sys/src/9/ip/gre.c:175,181 – 1998/0313/sys/src/9/ip/gre.c:181,187
1997/0327		/* Look for a conversation structure for this port and address */ c = nil; for(p = gre.conv; *p; p++) {
1998/0313		for(p = gre->conv; *p; p++) {
1997/0327		c = *p; if(c->inuse == 0) continue;
1998/0306/sys/src/9/ip/gre.c:198,204 – 1998/0313/sys/src/9/ip/gre.c:204,210
1997/0327		}
1997/0530		bp = trimblock(bp, GRE_IPONLY, len);
1997/0327		if(bp == nil){ gre.lenerr++;
1998/0313		gpriv->lenerr++;
1997/0327		return; }
1998/0306/sys/src/9/ip/gre.c:216,245 – 1998/0313/sys/src/9/ip/gre.c:222,257
1997/0327		}
1998/0306		int grestats(char *buf, int len)
1998/0313		grestats(Proto *gre, char *buf, int len)
1998/0306		{ return snprint(buf, len, "gre: csum %d hlen %d len %d order %d rexmit %d\n", gre.csumerr, gre.hlenerr, gre.lenerr, gre.order, gre.rexmit);
1998/0313		GREpriv *gpriv; gpriv = gre->priv; return snprint(buf, len, "gre: len %d\n", gpriv->lenerr);
1998/0306		}
1997/0327		void greinit(Fs *fs) { gre.name = "gre"; gre.kick = grekick; gre.connect = greconnect; gre.announce = greannounce; gre.state = grestate; gre.create = grecreate; gre.close = greclose; gre.rcv = greiput; gre.ctl = nil; gre.advise = nil;
1998/0306		gre.stats = grestats;
1997/0327		gre.ipproto = IP_GREPROTO; gre.nc = 64; gre.ptclsize = 0;
1998/0313		Proto *gre;
1997/0327		Fsproto(fs, &gre);
1998/0313		gre = smalloc(sizeof(Proto)); gre->priv = smalloc(sizeof(GREpriv)); gre->name = "gre"; gre->kick = grekick; gre->connect = greconnect; gre->announce = greannounce; gre->state = grestate; gre->create = grecreate; gre->close = greclose; gre->rcv = greiput; gre->ctl = nil; gre->advise = nil; gre->stats = grestats; gre->ipproto = IP_GREPROTO; gre->nc = 64; gre->ptclsize = 0; Fsproto(fs, gre);
1997/0327		}