File dhcpv6-1.0.22-correct-DUID-time-generation-and-save-server-DUID.patch of Package dhcpv6

From eacc7053019158c8193426a662ceaf3fbb02f057 Mon Sep 17 00:00:00 2001
From: David Cantrell <dcantrell@redhat.com>
Date: Tue, 16 Sep 2008 09:49:28 -1000
Subject: [PATCH] Correct DUID time generation and save server DUID.

Make sure DUID time generation is since 01-Jan-2008 (the IPv6
epoch, I guess).

We call save_duid() from dhcp6c, but we were not for dhcp6s, so
make sure we do that.
---
 src/common.c |    2 +-
 src/dhcp6s.c |    7 +++++++
 2 files changed, 8 insertions(+), 1 deletions(-)

diff --git a/src/common.c b/src/common.c
index e4616d7..4566ad4 100644
--- a/src/common.c
+++ b/src/common.c
@@ -833,7 +833,7 @@ int get_duid(const char *idfile, const char *ifname, struct duid *duid) {
         dp = (struct dhcp6_duid_type1 *) duid->duid_id;
         dp->dh6duid1_type = htons(1);   /* type 1 */
         dp->dh6duid1_hwtype = htons(hwtype);
-        t64 = (u_int64_t) (time(NULL));
+        t64 = (u_int64_t) (time(NULL) - 946684800);
         dp->dh6duid1_time = htonl((u_long) (t64 & 0xffffffff));
         memcpy((void *) (dp + 1), tmpbuf, (len - sizeof(*dp)));
 
diff --git a/src/dhcp6s.c b/src/dhcp6s.c
index f7faeb5..ecf07e4 100644
--- a/src/dhcp6s.c
+++ b/src/dhcp6s.c
@@ -403,6 +403,9 @@ void server6_init() {
             dhcpv6_dprintf(LOG_ERR, "%s" "failed to get a DUID", FNAME);
             exit(1);
         }
+        if (save_duid(DUID_FILE, device[0], &server_duid)) {
+            dhcpv6_dprintf(LOG_ERR, "%s" "failed to save server ID", FNAME);
+        }
     } else {
         /* all the interfaces join multicast group */
         ifc.ifc_len = sizeof(buff);
@@ -437,6 +440,10 @@ void server6_init() {
                                    FNAME);
                     exit(1);
                 }
+                if (save_duid(DUID_FILE, ifr->ifr_name, &server_duid)) {
+                    dhcpv6_dprintf(LOG_ERR, "%s" "failed to save server ID",
+                                   FNAME);
+                }
             }
             ifinit(ifr->ifr_name);
             num_device += 1;
-- 
1.6.4.2