1 files changed, 88 insertions, 0 deletions
diff --git a/FreeBSD/ip_input.c.diffs b/FreeBSD/ip_input.c.diffs
new file mode 100644
index 0000000..a70be89
--- /dev/null
+++ b/FreeBSD/ip_input.c.diffs
@@ -0,0 +1,88 @@
+*** /sys/netinet/ip_input.c.orig	Thu Oct 24 22:27:27 1996
+--- /sys/netinet/ip_input.c	Tue Feb 18 21:18:19 1997
+***************
+*** 93,98 ****
+--- 93,102 ----
+  int	ipqmaxlen = IFQ_MAXLEN;
+  struct	in_ifaddr *in_ifaddr;			/* first inet address */
+  struct	ifqueue ipintrq;
++ #if defined(IPFILTER_LKM) || defined(IPFILTER)
++ int	fr_check __P((struct ip *, int, struct ifnet *, int, struct mbuf **));
++ int	(*fr_checkp) __P((struct ip *, int, struct ifnet *, int, struct mbuf **));
++ #endif
+  
+  struct ipstat ipstat;
+  struct ipq ipq;
+***************
+*** 219,226 ****
+  		}
+  		ip = mtod(m, struct ip *);
+  	}
+! 	ip->ip_sum = in_cksum(m, hlen);
+! 	if (ip->ip_sum) {
+  		ipstat.ips_badsum++;
+  		goto bad;
+  	}
+--- 223,229 ----
+  		}
+  		ip = mtod(m, struct ip *);
+  	}
+! 	if (in_cksum(m, hlen)) {
+  		ipstat.ips_badsum++;
+  		goto bad;
+  	}
+***************
+*** 267,272 ****
+--- 270,288 ----
+  	       goto next;
+  	}
+  
++ #if defined(IPFILTER) || defined(IPFILTER_LKM)
++ 	/*
++ 	 * Check if we want to allow this packet to be processed.
++ 	 * Consider it to be bad if not.
++ 	 */
++ 	if (fr_checkp) {
++ 		struct	mbuf	*m1 = m;
++ 
++ 		if ((*fr_checkp)(ip, hlen, m->m_pkthdr.rcvif, 0, &m1) || !m1)
++ 			goto next;
++ 		ip = mtod(m = m1, struct ip *);
++ 	}
++ #endif
+  	/*
+  	 * Process options and, if not destined for us,
+  	 * ship it on.  ip_dooptions returns 1 when an
+***************
+*** 527,532 ****
+--- 533,540 ----
+       * if they are completely covered, dequeue them.
+       */
+      while (q != (struct ipasfrag *)fp && ip->ip_off + ip->ip_len > q->ip_off) {
++             struct mbuf *m0;
++ 
+              i = (ip->ip_off + ip->ip_len) - q->ip_off;
+              if (i < q->ip_len) {
+                      q->ip_len -= i;
+***************
+*** 526,534 ****
+  			m_adj(dtom(q), i);
+  			break;
+  		}
+  		q = q->ipf_next;
+- 		m_freem(dtom(q->ipf_prev));
+  		ip_deq(q->ipf_prev);
+  	}
+  
+  insert:
+--- 542,551 ----
+  			m_adj(dtom(q), i);
+  			break;
+  		}
++ 		m0 = dtom(q);
+  		q = q->ipf_next;
+  		ip_deq(q->ipf_prev);
++ 		m_freem(m0);
+  	}
+  
+  insert: