1993/1202/carrera/devether.c (diff list | history)

1993/0918/sys/src/9/carrera/devether.c:682,687 – 1993/1202/sys/src/9/carrera/devether.c:682,718 (short | long | prev | next)
1993/0904		return ctlr->tda[ctlr->th].status == Host;
1993/0903		}
1993/1202		static int etherloop(Etherpkt *p, long n) { int s, different; ushort t; Netfile *f, **fp; different = memcmp(p->d, p->s, sizeof(p->s)); if(different && memcmp(p->d, ether.bcast, sizeof(p->d))) return 0; s = splhi(); t = (p->type[0]<<8) | p->type[1]; for(fp = ether.f; fp < ðer.f[Ntypes]; fp++) { f = *fp; if(f == 0) continue; if(f->type == t || f->type < 0) switch(qproduce(f->in, p->d, n)){ case -1: print("etherloop overflow\n"); break; case -2: print("etherloop memory\n"); break; } } splx(s); return !different; }
1993/0903		long etherwrite(Chan *c, void *buf, long n, ulong offset) {
1993/0918/sys/src/9/carrera/devether.c:699,704 – 1993/1202/sys/src/9/carrera/devether.c:730,738
1993/0904		return netifwrite(ether[0], c, buf, n);
1993/0903		/* we handle data */
1993/1202		if(etherloop(buf, n)) return n;
1993/0904		qlock(&ctlr->tlock);
1993/0918		if(waserror()) { qunlock(&ctlr->tlock);