shithub: riscv

Info  •  Files  •  Log  •  Branches

ip/ipconfig: silently ignore prefix information with Autonomous flag clear

--- a/sys/src/cmd/ip/ipconfig/ipv6.c

+++ b/sys/src/cmd/ip/ipconfig/ipv6.c

@@ -691,13 +691,16 @@

 		if(prfo->len != 4)

 			continue;

+		if((prfo->lar & AFMASK) == 0)

+			continue;

+

 		conf.prefixlen = prfo->plen & 127;

 		genipmkask(conf.mask, conf.prefixlen);

 		maskip(prfo->pref, conf.mask, conf.v6pref);

 		memmove(conf.laddr, conf.v6pref, 8);

 		memmove(conf.laddr+8, conf.lladdr+8, 8);

-		conf.onlink = ((prfo->lar & OLMASK) != 0);

-		conf.autoflag = ((prfo->lar & AFMASK) != 0);

+		conf.onlink = (prfo->lar & OLMASK) != 0;

+		conf.autoflag = (prfo->lar & AFMASK) != 0;

 		conf.validlt = nhgetl(prfo->validlt);

 		conf.preflt = nhgetl(prfo->preflt);