Van's suggestion: add a means to let kernel set IP header ident #

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

diff --git a/usr/src/sys/netinet/raw_ip.c b/usr/src/sys/netinet/raw_ip.c
index 72c1e03..5bef516 100644 (file)
--- a/usr/src/sys/netinet/raw_ip.c
+++ b/usr/src/sys/netinet/raw_ip.c
@@ -4,7 +4,7 @@
  *
  * %sccs.include.redist.c%
  *
  *
  * %sccs.include.redist.c%
  *

- *     @(#)raw_ip.c    7.12 (Berkeley) %G%
+ *     @(#)raw_ip.c    7.13 (Berkeley) %G%

  */
 
 #include <sys/param.h>
  */
 
 #include <sys/param.h>


@@ -127,6 +127,9 @@ rip_output(m, so, dst)
                ip->ip_ttl = MAXTTL;
                opts = inp->inp_options;
        } else {
                ip->ip_ttl = MAXTTL;
                opts = inp->inp_options;
        } else {

+               ip = mtod(m, struct ip *);
+               if (ip->ip_id == 0)
+                       ip->ip_id = htons(ip_id++);

                opts = NULL;
                /* XXX prevent ip_output from overwriting header fields */
                flags |= IP_RAWOUTPUT;
                opts = NULL;
                /* XXX prevent ip_output from overwriting header fields */
                flags |= IP_RAWOUTPUT;