going to drop'll free free mbuf; be sure and discard tcp options

[unix-history] / usr / src / sys / netinet / tcp_input.c

diff --git a/usr/src/sys/netinet/tcp_input.c b/usr/src/sys/netinet/tcp_input.c
index 7ff357e..eece52e 100644 (file)
--- a/usr/src/sys/netinet/tcp_input.c
+++ b/usr/src/sys/netinet/tcp_input.c
@@ -1,4 +1,4 @@
-/*     tcp_input.c     1.90    83/03/25        */
+/*     tcp_input.c     1.90    83/03/27        */

 
 #include "../h/param.h"
 #include "../h/systm.h"
 
 #include "../h/param.h"
 #include "../h/systm.h"


@@ -78,8 +78,6 @@ tcp_input(m0)
                ti->ti_len = htons((u_short)ti->ti_len);
                if (ti->ti_sum = in_cksum(m, len)) {
                        tcpstat.tcps_badsum++;
                ti->ti_len = htons((u_short)ti->ti_len);
                if (ti->ti_sum = in_cksum(m, len)) {
                        tcpstat.tcps_badsum++;

-                       if (tcpprintfs)
-                               printf("tcp cksum %x\n", ti->ti_sum);

                        goto drop;
                }
        }
                        goto drop;
                }
        }


@@ -98,7 +96,7 @@ tcp_input(m0)
        if (off > sizeof (struct tcphdr)) {
                if ((m = m_pullup(m, sizeof (struct ip) + off)) == 0) {
                        tcpstat.tcps_hdrops++;
        if (off > sizeof (struct tcphdr)) {
                if ((m = m_pullup(m, sizeof (struct ip) + off)) == 0) {
                        tcpstat.tcps_hdrops++;

-                       goto drop;
+                       return;

                }
                ti = mtod(m, struct tcpiphdr *);
                om = m_get(M_DONTWAIT, MT_DATA);
                }
                ti = mtod(m, struct tcpiphdr *);
                om = m_get(M_DONTWAIT, MT_DATA);


@@ -728,6 +726,8 @@ dropwithreset:
        return;
 
 drop:
        return;
 
 drop:

+       if (om)
+               (void) m_free(om);

        /*
         * Drop space held by incoming segment and return.
         */
        /*
         * Drop space held by incoming segment and return.
         */