Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
Tested. It Works. Thanks ! I tested the patch on PPP running under both kernels IPV4+6 V4only just to be sure, it works on both, allows me to type dial down (all I tried or wanted.) I'd been wondering why I was the first person to notice the problem. Then I noticed my kernel (unlike GENERIC) did not have device faith (which I had removed thinking I didnt need V6). Not sure if significant, but thought I should mention it. Julian -- Julian Stacey. BSD Unix C Net Consultancy, Munich/Muenchen http://berklix.com Don't buy it ! Get it free ! http://berklix.org/free-software Mail Ascii, not HTML. Ihr Rauch = mein allergischer Kopfschmerz. ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
Hi, On Mon, 18 Sep 2006 23:46:09 +0200 (CEST) Julian Stacey [EMAIL PROTECTED] said: jhs I'd been wondering why I was the first person to notice the problem. I'm not sure why there was no report about it, but I had never been using inet socket. I don't want to open inet socket for controlling ppp(8) for security reason, and I used to to use just unix domain socket to control ppp(8). jhs Then I noticed my kernel (unlike GENERIC) did not have jhsdevice faith jhs (which I had removed thinking I didnt need V6). jhs Not sure if significant, but thought I should mention it. It is for an IPv6-to-IPv4 TCP relay. I think that most of the people are not using it, actually. So, it shouldn't be a problem. Sincerely, -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan [EMAIL PROTECTED] [EMAIL PROTECTED],jp.}FreeBSD.org http://www.imasy.org/~ume/ ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
On Mon, Sep 18, 2006 at 11:46:09PM +0200 I heard the voice of Julian Stacey, and lo! it spake thus: I'd been wondering why I was the first person to notice the problem. Actually, I noticed it a while back (6 months or so? Something like that...) when I tried to run pppctl from my workstation instead of the router. I looked at sockstat, said Huh, that's kinda annoying, and just always used pppctl from the router. -- Matthew Fuller (MF4839) | [EMAIL PROTECTED] Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream. ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
Hi,
On Thu, 14 Sep 2006 15:44:18 +0200 (CEST)
Julian Stacey [EMAIL PROTECTED] said:
jhs I'm not clear if this is a bug or a config error:
jhs It seems though my /usr/sbin/ppp was moving traffic
jhs to from internet, it was only listening for commands
jhs (not data) on ipv6, not ipv4, thus I could not type commands
jhs like dial drop, unless instead of running ppp -auto
jhs instead I invoked ppp manually in foreground on localhost.
As far as I read the source of ppp(8), it only listen on an IPv6, and
expects to listen on an IPv4 through an IPv4-mapped IPv6 address.
However, an IPv4-mapped IPv6 address feature is disabled by default.
ppp(8) should be rewritten to listen on both an IPv4 and an IPv6.
But, it is slightly complex. So, I made a patch to enable an
IPv4-mapped IPv6 address only for the socket that ppp(8) is listening
on.
I have no environment for testing this. Could you try this patch?
Index: usr.sbin/ppp/server.c
diff -u -p usr.sbin/ppp/server.c.orig usr.sbin/ppp/server.c
--- usr.sbin/ppp/server.c.orig Sun Sep 5 10:46:52 2004
+++ usr.sbin/ppp/server.c Sun Sep 17 19:54:43 2006
@@ -346,6 +346,13 @@ server_TcpOpen(struct bundle *bundle, u_
goto failed;
}
+#ifndef NOINET6
+ if (probe.ipv6_available) {
+int off = 0;
+setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, (char *)off, sizeof(off));
+ }
+#endif
+
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, s, sizeof s);
if (bind(s, (struct sockaddr *)ss, sz) 0) {
log_Printf(LogWARN, Tcp: bind: %s\n, strerror(errno));
Sincerely,
--
Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan
[EMAIL PROTECTED] [EMAIL PROTECTED],jp.}FreeBSD.org
http://www.imasy.org/~ume/
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Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
I have no environment for testing this. Could you try this patch? Yes certainly, thanks a lot, delighted to get a reply will report back soon. -- Julian Stacey. BSD Unix C Net Consultancy, Munich/Muenchen http://berklix.com Mail Ascii, not HTML. Ihr Rauch = mein allergischer Kopfschmerz. Don't buy it ! Get it free ! http://berklix.org/free-software ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
On Sun, 17 Sep 2006 20:10:47 +0900 Hajimu UMEMOTO [EMAIL PROTECTED] wrote:
Hi,
On Thu, 14 Sep 2006 15:44:18 +0200 (CEST)
Julian Stacey [EMAIL PROTECTED] said:
jhs I'm not clear if this is a bug or a config error:
jhs It seems though my /usr/sbin/ppp was moving traffic
jhs to from internet, it was only listening for commands
jhs (not data) on ipv6, not ipv4, thus I could not type commands
jhs like dial drop, unless instead of running ppp -auto
jhs instead I invoked ppp manually in foreground on localhost.
As far as I read the source of ppp(8), it only listen on an IPv6, and
expects to listen on an IPv4 through an IPv4-mapped IPv6 address.
However, an IPv4-mapped IPv6 address feature is disabled by default.
ppp(8) should be rewritten to listen on both an IPv4 and an IPv6.
But, it is slightly complex. So, I made a patch to enable an
IPv4-mapped IPv6 address only for the socket that ppp(8) is listening
on.
I have no environment for testing this. Could you try this patch?
Index: usr.sbin/ppp/server.c
diff -u -p usr.sbin/ppp/server.c.orig usr.sbin/ppp/server.c
--- usr.sbin/ppp/server.c.origSun Sep 5 10:46:52 2004
+++ usr.sbin/ppp/server.c Sun Sep 17 19:54:43 2006
@@ -346,6 +346,13 @@ server_TcpOpen(struct bundle *bundle, u_
goto failed;
}
+#ifndef NOINET6
+ if (probe.ipv6_available) {
+int off = 0;
+setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, (char *)off, sizeof(off));
+ }
+#endif
+
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, s, sizeof s);
if (bind(s, (struct sockaddr *)ss, sz) 0) {
log_Printf(LogWARN, Tcp: bind: %s\n, strerror(errno));
Sincerely,
AFAIR I had trouble getting that code to work and was advised at
the time that I'd just get the mapped port for free. I haven't
been using IPv6 on production machines for some time, so I haven't
seen the problem :(
It'd be great if you'd commit the patch if Julian says it works
ok for him.
Cheers.
--
Brian Somers [EMAIL PROTECTED]
Don't _EVER_ lose your sense of humour ! [EMAIL PROTECTED]
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Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
Brian Somers wrote:
On Sun, 17 Sep 2006 20:10:47 +0900 Hajimu UMEMOTO [EMAIL PROTECTED] wrote:
Hi,
On Thu, 14 Sep 2006 15:44:18 +0200 (CEST)
Julian Stacey [EMAIL PROTECTED] said:
jhs I'm not clear if this is a bug or a config error:
jhs It seems though my /usr/sbin/ppp was moving traffic
jhs to from internet, it was only listening for commands
jhs (not data) on ipv6, not ipv4, thus I could not type commands
jhs like dial drop, unless instead of running ppp -auto
jhs instead I invoked ppp manually in foreground on localhost.
As far as I read the source of ppp(8), it only listen on an IPv6, and
expects to listen on an IPv4 through an IPv4-mapped IPv6 address.
However, an IPv4-mapped IPv6 address feature is disabled by default.
ppp(8) should be rewritten to listen on both an IPv4 and an IPv6.
But, it is slightly complex. So, I made a patch to enable an
IPv4-mapped IPv6 address only for the socket that ppp(8) is listening
on.
I have no environment for testing this. Could you try this patch?
Index: usr.sbin/ppp/server.c
diff -u -p usr.sbin/ppp/server.c.orig usr.sbin/ppp/server.c
--- usr.sbin/ppp/server.c.orig Sun Sep 5 10:46:52 2004
+++ usr.sbin/ppp/server.c Sun Sep 17 19:54:43 2006
@@ -346,6 +346,13 @@ server_TcpOpen(struct bundle *bundle, u_
goto failed;
}
+#ifndef NOINET6
+ if (probe.ipv6_available) {
+int off = 0;
+setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, (char *)off, sizeof(off));
+ }
+#endif
+
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, s, sizeof s);
if (bind(s, (struct sockaddr *)ss, sz) 0) {
log_Printf(LogWARN, Tcp: bind: %s\n, strerror(errno));
Sincerely,
AFAIR I had trouble getting that code to work and was advised at
the time that I'd just get the mapped port for free. I haven't
been using IPv6 on production machines for some time, so I haven't
seen the problem :(
It'd be great if you'd commit the patch if Julian says it works
ok for him.
Tested. It Works. Thanks !
I tested the patch on PPP running under both kernels IPV4+6 V4only
just to be sure, it works on both, allows me to type dial down
(all I tried or wanted.)
Output With patch:
strings /boot/kernel/kernel | grep ___ | grep INET
___options INET
___options INET6
sockstat -l
USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
root ppp939 9 tcp46 *:12345 *:*
strings /boot/kernel/kernel | grep ___ | grep INET
___options INET
___# options INET6
sockstat -l
USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
root ppp931 9 tcp4 *:12345 *:*
Old V4+6 Kernel pre patch:
USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS
root ppp1020 9 tcp6 *:12345 *:*
I hope it's commited. (Dont't know if a 2nd tester is needed to verify ?)
Thanks Hajimu :-)
Julian
--
Julian Stacey. BSD Unix C Net Consultancy, Munich/Muenchen http://berklix.com
Mail Ascii, not HTML. Ihr Rauch = mein allergischer Kopfschmerz.
Don't buy it ! Get it free ! http://berklix.org/free-software
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Re: ppp command port does not listens on ipv4 unless no INET6 in kernel
Hi, On Sun, 17 Sep 2006 23:35:57 +0200 Julian H. Stacey [EMAIL PROTECTED] said: AFAIR I had trouble getting that code to work and was advised at the time that I'd just get the mapped port for free. I haven't been using IPv6 on production machines for some time, so I haven't seen the problem :( It'd be great if you'd commit the patch if Julian says it works ok for him. jhs Tested. It Works. Thanks ! jhs I tested the patch on PPP running under both kernels IPV4+6 V4only jhs just to be sure, it works on both, allows me to type dial down jhs (all I tried or wanted.) jhs Output With patch: jhs strings /boot/kernel/kernel | grep ___ | grep INET jhs ___options INET jhs ___options INET6 jhs sockstat -l jhs USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS jhs root ppp939 9 tcp46 *:12345 *:* jhs strings /boot/kernel/kernel | grep ___ | grep INET jhs ___options INET jhs ___# options INET6 jhs sockstat -l jhs USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS jhs root ppp931 9 tcp4 *:12345 *:* jhs Old V4+6 Kernel pre patch: jhs USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS jhs root ppp1020 9 tcp6 *:12345 *:* jhs I hope it's commited. (Dont't know if a 2nd tester is needed to verify ?) Thank you for testing. I've just committed it. jhs Thanks Hajimu :-) You are welcome. Sincerely, -- Hajimu UMEMOTO @ Internet Mutual Aid Society Yokohama, Japan [EMAIL PROTECTED] [EMAIL PROTECTED],jp.}FreeBSD.org http://www.imasy.org/~ume/ ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to [EMAIL PROTECTED]
ppp command port does not listens on ipv4 unless no INET6 in kernel
Hi Net@ people, I posted this to hackers@ Mon, 11 Sep 2006 20:30:38 +0200 (CEST) got no response. I've fixed typos in subject body. Hopefuly net@ is more appropriate can respond please :-) --- (cc [EMAIL PROTECTED] who's maybe expert, from examples seen in share :-) I'm not clear if this is a bug or a config error: It seems though my /usr/sbin/ppp was moving traffic to from internet, it was only listening for commands (not data) on ipv6, not ipv4, thus I could not type commands like dial drop, unless instead of running ppp -auto instead I invoked ppp manually in foreground on localhost. Detail: I have 2 alternate firewall/ gateways connected to world via DSL. Each ran 4.10-Release OK. I raised one to 6.1-Release. With a 6.1 Release custom kernel compiled with options INET6 /etc/ppp/ppp.conf with set server +12345 mypasswd sockstat -l showed only: USER COMMANDPID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS root ppp1020 9 tcp6 *:12345 *:* ( no 2nd line for ipv4), so from my internal host, this failed: pppctl -p mypasswd dsl:12345 in fact even on my host named dsl, this failed telnet localhost 12345 So I built a new kernel without INET6 then sockstat -l showed root ppp972 9 tcp4 *:12345 *:* that works OK, I can finally manually control my PPP link up down via pppctl -p mypasswd dsl:12345 On my 4.10 host which has a kernel with both options INET options INET6 (as also has 4.10 GENERIC), that has always worked OK, sockstat -l shows root ppp5129 tcp46 *:12345 *:* pppctl -p mypasswd dsl:12345 works OK. Questions: - - Did I misconfigure something ? - - Does ppp on 6.1 perhaps not now listen on ipv4 if INET6 is in kernel ? (Unfortunate if so, as INET6 in in GENERIC kernel) - - Should ppp have an extra flag added, forcing Do listen on ipv4 ? - - Is this a bug ? Should I file a send-pr ? Did I misconfig something ? Julian - -- Julian Stacey. BSD Unix C Net Consultancy, Munich/Muenchen http://berklix.com Mail Ascii, not HTML. Ihr Rauch = mein allergischer Kopfschmerz. ___ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to [EMAIL PROTECTED]
