slirp: remove #if notdef dead code

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>

1 files changed, 0 insertions, 200 deletions

diff --git a/slirp/ip_input.c b/slirp/ip_input.c
index 094a807d41..d360620838 100644
--- a/slirp/ip_input.c
+++ b/slirp/ip_input.c
@@ -448,206 +448,6 @@ ip_slowtimo(Slirp *slirp)
 }
 
 /*
- * Do option processing on a datagram,
- * possibly discarding it if bad options are encountered,
- * or forwarding it if source-routed.
- * Returns 1 if packet has been forwarded/freed,
- * 0 if the packet should be processed further.
- */
-
-#ifdef notdef
-
-int
-ip_dooptions(m)
-	struct mbuf *m;
-{
-	register struct ip *ip = mtod(m, struct ip *);
-	register u_char *cp;
-	register struct ip_timestamp *ipt;
-	register struct in_ifaddr *ia;
-	int opt, optlen, cnt, off, code, type, forward = 0;
-	struct in_addr *sin, dst;
-typedef uint32_t n_time;
-	n_time ntime;
-
-	dst = ip->ip_dst;
-	cp = (u_char *)(ip + 1);
-	cnt = (ip->ip_hl << 2) - sizeof (struct ip);
-	for (; cnt > 0; cnt -= optlen, cp += optlen) {
-		opt = cp[IPOPT_OPTVAL];
-		if (opt == IPOPT_EOL)
-			break;
-		if (opt == IPOPT_NOP)
-			optlen = 1;
-		else {
-			optlen = cp[IPOPT_OLEN];
-			if (optlen <= 0 || optlen > cnt) {
-				code = &cp[IPOPT_OLEN] - (u_char *)ip;
-				goto bad;
-			}
-		}
-		switch (opt) {
-
-		default:
-			break;
-
-		/*
-		 * Source routing with record.
-		 * Find interface with current destination address.
-		 * If none on this machine then drop if strictly routed,
-		 * or do nothing if loosely routed.
-		 * Record interface address and bring up next address
-		 * component.  If strictly routed make sure next
-		 * address is on directly accessible net.
-		 */
-		case IPOPT_LSRR:
-		case IPOPT_SSRR:
-			if ((off = cp[IPOPT_OFFSET]) < IPOPT_MINOFF) {
-				code = &cp[IPOPT_OFFSET] - (u_char *)ip;
-				goto bad;
-			}
-			ipaddr.sin_addr = ip->ip_dst;
-			ia = (struct in_ifaddr *)
-				ifa_ifwithaddr((struct sockaddr *)&ipaddr);
-			if (ia == 0) {
-				if (opt == IPOPT_SSRR) {
-					type = ICMP_UNREACH;
-					code = ICMP_UNREACH_SRCFAIL;
-					goto bad;
-				}
-				/*
-				 * Loose routing, and not at next destination
-				 * yet; nothing to do except forward.
-				 */
-				break;
-			}
-                        off--; /* 0 origin */
-			if (off > optlen - sizeof(struct in_addr)) {
-				/*
-				 * End of source route.  Should be for us.
-				 */
-				save_rte(cp, ip->ip_src);
-				break;
-			}
-			/*
-			 * locate outgoing interface
-			 */
-			bcopy((caddr_t)(cp + off), (caddr_t)&ipaddr.sin_addr,
-			    sizeof(ipaddr.sin_addr));
-			if (opt == IPOPT_SSRR) {
-#define	INA	struct in_ifaddr *
-#define	SA	struct sockaddr *
-			    if ((ia = (INA)ifa_ifwithdstaddr((SA)&ipaddr)) == 0)
-				ia = (INA)ifa_ifwithnet((SA)&ipaddr);
-			} else
-				ia = ip_rtaddr(ipaddr.sin_addr);
-			if (ia == 0) {
-				type = ICMP_UNREACH;
-				code = ICMP_UNREACH_SRCFAIL;
-				goto bad;
-			}
-			ip->ip_dst = ipaddr.sin_addr;
-			bcopy((caddr_t)&(IA_SIN(ia)->sin_addr),
-			    (caddr_t)(cp + off), sizeof(struct in_addr));
-			cp[IPOPT_OFFSET] += sizeof(struct in_addr);
-			/*
-			 * Let ip_intr's mcast routing check handle mcast pkts
-			 */
-			forward = !IN_MULTICAST(ntohl(ip->ip_dst.s_addr));
-			break;
-
-		case IPOPT_RR:
-			if ((off = cp[IPOPT_OFFSET]) < IPOPT_MINOFF) {
-				code = &cp[IPOPT_OFFSET] - (u_char *)ip;
-				goto bad;
-			}
-			/*
-			 * If no space remains, ignore.
-			 */
-                        off--; /* 0 origin */
-			if (off > optlen - sizeof(struct in_addr))
-				break;
-			bcopy((caddr_t)(&ip->ip_dst), (caddr_t)&ipaddr.sin_addr,
-			    sizeof(ipaddr.sin_addr));
-			/*
-			 * locate outgoing interface; if we're the destination,
-			 * use the incoming interface (should be same).
-			 */
-			if ((ia = (INA)ifa_ifwithaddr((SA)&ipaddr)) == 0 &&
-			    (ia = ip_rtaddr(ipaddr.sin_addr)) == 0) {
-				type = ICMP_UNREACH;
-				code = ICMP_UNREACH_HOST;
-				goto bad;
-			}
-			bcopy((caddr_t)&(IA_SIN(ia)->sin_addr),
-			    (caddr_t)(cp + off), sizeof(struct in_addr));
-			cp[IPOPT_OFFSET] += sizeof(struct in_addr);
-			break;
-
-		case IPOPT_TS:
-			code = cp - (u_char *)ip;
-			ipt = (struct ip_timestamp *)cp;
-			if (ipt->ipt_len < 5)
-				goto bad;
-			if (ipt->ipt_ptr > ipt->ipt_len - sizeof (int32_t)) {
-				if (++ipt->ipt_oflw == 0)
-					goto bad;
-				break;
-			}
-			sin = (struct in_addr *)(cp + ipt->ipt_ptr - 1);
-			switch (ipt->ipt_flg) {
-
-			case IPOPT_TS_TSONLY:
-				break;
-
-			case IPOPT_TS_TSANDADDR:
-				if (ipt->ipt_ptr + sizeof(n_time) +
-				    sizeof(struct in_addr) > ipt->ipt_len)
-					goto bad;
-				ipaddr.sin_addr = dst;
-				ia = (INA)ifaof_ i f p foraddr((SA)&ipaddr,
-							    m->m_pkthdr.rcvif);
-				if (ia == 0)
-					continue;
-				bcopy((caddr_t)&IA_SIN(ia)->sin_addr,
-				    (caddr_t)sin, sizeof(struct in_addr));
-				ipt->ipt_ptr += sizeof(struct in_addr);
-				break;
-
-			case IPOPT_TS_PRESPEC:
-				if (ipt->ipt_ptr + sizeof(n_time) +
-				    sizeof(struct in_addr) > ipt->ipt_len)
-					goto bad;
-				bcopy((caddr_t)sin, (caddr_t)&ipaddr.sin_addr,
-				    sizeof(struct in_addr));
-				if (ifa_ifwithaddr((SA)&ipaddr) == 0)
-					continue;
-				ipt->ipt_ptr += sizeof(struct in_addr);
-				break;
-
-			default:
-				goto bad;
-			}
-			ntime = iptime();
-			bcopy((caddr_t)&ntime, (caddr_t)cp + ipt->ipt_ptr - 1,
-			    sizeof(n_time));
-			ipt->ipt_ptr += sizeof(n_time);
-		}
-	}
-	if (forward) {
-		ip_forward(m, 1);
-		return (1);
-	}
-	return (0);
-bad:
-	icmp_send_error(m, type, code, 0, 0);
-
-	return (1);
-}
-
-#endif /* notdef */
-
-/*
  * Strip out IP options, at higher
  * level protocol in the kernel.
  * Second argument is buffer to which options