---------------------
PatchSet 4852 
Date: 2007/06/25 09:54:21
Author: amosjeffries
Branch: squid3-ipv6
Tag: (none) 
Log:
Update NOTES-IPv6 on latest changes

Members: 
	NOTES-IPv6:1.1.2.42->1.1.2.43 

Index: squid3/NOTES-IPv6
===================================================================
RCS file: /cvsroot/squid-sf//squid3/Attic/NOTES-IPv6,v
retrieving revision 1.1.2.42
retrieving revision 1.1.2.43
diff -u -r1.1.2.42 -r1.1.2.43
--- squid3/NOTES-IPv6	24 Jun 2007 11:36:55 -0000	1.1.2.42
+++ squid3/NOTES-IPv6	25 Jun 2007 09:54:21 -0000	1.1.2.43
@@ -1,21 +1,28 @@
-$Id: NOTES-IPv6,v 1.1.2.42 2007/06/24 11:36:55 amosjeffries Exp $
+$Id: NOTES-IPv6,v 1.1.2.43 2007/06/25 09:54:21 amosjeffries Exp $
+
+NP: Any problems with this version of squid please contact
+	squid3@treenet.co.nz for assistance.
+
 
 NP: All IPv6 builds from before 9 June 2007 contain a cache corruption bug
 	and require a full cachedir deletion and rebuild.
 	Failure to do this will result in random segfaults and memory corruption
 
-KNOWN BUGS:
+CURRENTLY KNOWN BUGS:
 
-PROBLEM: Sockets created with IPv4 'family' cannot be use for IPv6 anywhere
+PROBLEM: Sockets created with IPv4 'family' cannot be use for IPv6 *anywhere*.
 	Likewise ones opened for IPv6 on split-stack systems cannot be used for IPv4.
 	The system that allocates pre-opened sockets to connections needs to
 	be modified such that it checks the stored family of the socket
 	matches the client addr family before allocating it.
 
 NP: have modified fde to store the sock_family a socket was allocated with.
-    Also GetAddrInfo to specifiy needed protocol formatting of an addrinfo
-    this will still fail retrieving AF_INET of an IPv6-pure destination.
-    Or on split-stacks needing a crossover port type (IPv4->IPv6, and reverse)
+    Also GetAddrInfo to specifiy needed protocol formatting of an addrinfo.
+    This will still fail retrieving AF_INET of an IPv6-pure destination.
+    ie. If squid listens on 2 ports, one IPv6, one IPv4 (as REQUIRED for spit-stack).
+    The IPv4-listener *cannot* accept requests to IPv6 destinations.
+SOLUTION: Requires inbound and outbound sockets to be disentangled at the comms layer.
+	That is one of the other planned improvements in 3.1 so won't be fixed here.
 
 
 PROBLEM: Regular segfaults (~3 minutes after startup)
@@ -34,11 +41,14 @@
 	Host newsrss.bbc.net.uk not found: 2(SERVFAIL)
 
 
-PROBLEM: last of multiple NS from resolv.conf getting caught as 'unknown'??
+PROBLEM: in IPv6 mode IPv4 nameservers from resolv.conf getting caught as 'unknown'
 	DNS lookups occasionally log:
 		idnsRead: FD 8: received 65 bytes from 192.168.0.10:53
 		WARNING: Reply from unknown nameserver 192.168.0.10:53
-	even though 192.168.0.10 has been loaded directly from resolv.conf (3rd of 3 NS)
+CAUSE: An error in the comparison logic joining with a problem converting IPA
+	Would find false non-match IFF one was a socket received value and other set from a string.
+	Comparison problem Fixed 25 June. If it occurs again try the workaround and report please.
+WORKAROUND: change resolv.conf to 'nameserver ::ffff:192.168.0.10' etc...
 
 
 Another intermittent failure: