1997/0403/port/netif.c (diff list | history)

1997/0401/sys/src/9/port/netif.c:9,15 – 1997/0403/sys/src/9/port/netif.c:9,15 (short | long | prev | next)
1993/0525		static int netown(Netfile*, char*, int); static int openfile(Netif*, int); static char* matchtoken(char*, char*);
1997/0401		static void netmulti(Netif*, char*, int);
1997/0403		static void netmulti(Netif*, Netfile*, char*, int);
1993/0525		/* * set up a new network interface
1997/0401/sys/src/9/port/netif.c:226,232 – 1997/0403/sys/src/9/port/netif.c:226,232
1993/0525		qlock(nif); f = nif->f[NETID(c->qid.path)]; if(p = matchtoken(buf, "connect")){
1997/0403		if((p = matchtoken(buf, "connect")) != 0){
1993/0525		f->type = atoi(p);
1994/0629		if(f->type < 0) nif->all++;
1997/0401/sys/src/9/port/netif.c:235,244 – 1997/0403/sys/src/9/port/netif.c:235,244
1993/0525		nif->prom++;
1997/0327		if(nif->prom == 1 && nif->promiscuous != nil) nif->promiscuous(nif->arg, 1);
1997/0401		} else if(p = matchtoken(buf, "addmulti")){ netmulti(nif, p, 1); } else if(p = matchtoken(buf, "remmulti")){ netmulti(nif, p, 0);
1997/0403		} else if((p = matchtoken(buf, "addmulti")) != 0){ netmulti(nif, f, p, 1); } else if((p = matchtoken(buf, "remmulti")) != 0){ netmulti(nif, f, p, 0);
1993/0525		} qunlock(nif); return n;
1997/0401/sys/src/9/port/netif.c:273,278 – 1997/0403/sys/src/9/port/netif.c:273,279
1993/0525		{ Netfile *f; int t;
1997/0403		Netaddr *ap;
1993/0525
1994/0915		if((c->flag & COPEN) == 0) return;
1997/0401/sys/src/9/port/netif.c:291,296 – 1997/0403/sys/src/9/port/netif.c:292,307
1994/0629		qunlock(nif);
1995/1104		f->prom = 0;
1994/0629		}
1997/0403		if(f->nmaddr){ qlock(nif); t = 0; for(ap = nif->maddr; ap; ap = ap->next){ if(f->maddr[t/8] & (1<<(t%8))) netmulti(nif, f, ap->addr, 0); } qunlock(nif); f->nmaddr = 0; }
1994/0629		if(f->type < 0){ qlock(nif); --(nif->all);
1997/0401/sys/src/9/port/netif.c:450,489 – 1997/0403/sys/src/9/port/netif.c:461,522
1995/0808		return (a[0]<<8)|(a[1]<<0);
1997/0401		} /* called with nif locked */
1997/0403		/* * keep track of multicast addresses */
1997/0401		static void netmulti(Netif *nif, char *addr, int add)
1997/0403		netmulti(Netif *nif, Netfile *f, char *addr, int add)
1997/0401		{ Netaddr **l, *ap;
1997/0403		int i; uchar hexaddr[Nmaxaddr];
1997/0401		if(nif->multicast == nil) return;
1997/0403		if(strlen(addr) != 2*nif->alen) return;
1997/0401		l = &nif->maddr;
1997/0403		i = 0;
1997/0401		for(ap = *l; ap; ap = *l){ if(strcmp(addr, ap->addr) == 0) break;
1997/0403		i++;
1997/0401		l = &ap->next; } if(add){ if(ap == 0){ ap = smalloc(sizeof(*ap));
1997/0403		*l = ap = smalloc(sizeof(*ap));
1997/0401		ap->addr = smalloc(strlen(addr)+1); strcpy(ap->addr, addr); ap->next = nif->maddr;
1997/0403		ap->next = 0;
1997/0401		ap->ref = 1; nif->maddr = ap; } else { ap->ref++; } if(ap->ref == 1)
1997/0403		if(ap->ref == 1){ nif->nmaddr++;
1997/0401		nif->multicast(nif->arg, addr, 1);
1997/0403		} if(i < 8*sizeof(f->maddr)){ if((f->maddr[i/8] & (1<<(i%8))) == 0) f->nmaddr++; f->maddr[i/8] |= 1<<(i%8); }
1997/0401		} else { if(ap == 0 || ap->ref == 0) return; ap->ref--; if(ap->ref == 0)
1997/0403		if(ap->ref == 0){ nif->nmaddr--;
1997/0401		nif->multicast(nif->arg, addr, 0);
1997/0403		} if(i < 8*sizeof(f->maddr)){ if((f->maddr[i/8] & (1<<(i%8))) != 0) f->nmaddr--; f->maddr[i/8] &= ~(1<<(i%8)); }
1997/0401		}
1995/0808		}