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Bug 1241061 - glibc doesn't provide definitions needed to support rfc3542 IPv6 socket properties
Summary: glibc doesn't provide definitions needed to support rfc3542 IPv6 socket prope...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: glibc
Version: 22
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Carlos O'Donell
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-07-08 11:24 UTC by Nikos Mavrogiannopoulos
Modified: 2016-11-24 12:18 UTC (History)
7 users (show)

Fixed In Version: glibc-2.21-7.fc22
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-07-16 02:33:38 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Nikos Mavrogiannopoulos 2015-07-08 11:24:43 UTC 
Description of problem:
glibc doesn't provide definitions needed to support standard (rfc3542) IPV6 socket properties. For example to obtain the MTU value of the path, the IPV6_PATHMTU option to getsockopt() can be used. This is supported by the Linux kernel but not by glibc.



How reproducible:
Compile the following program.
#define _GNU_SOURCE
#include <unistd.h>
#include <netinet/in.h>
#include <sys/types.h>
#include <sys/socket.h>

int main()
{
struct ip6_mtuinfo mtuinfo;
socklen_t len;

getsockopt(1, IPPROTO_IPV6, IPV6_PATHMTU, &mtuinfo, &len);

return 0;
}


Actual results:
Fails because IPV6_PATHMTU is undefined.

Expected results:
Compilation should complete.

Additional info:
A bug report and a fix was posted in Debian:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=753909
Comment 1 Carlos O'Donell 2015-07-08 15:06:19 UTC 
Fixed upstream.

commit 1c1e3125206ef810dc7282023f6267a33b486233
Author: Carlos O'Donell <carlos>
Date:   Wed Jul 8 09:26:45 2015 -0400

    Add missing Advanced API (RFC3542) (1) defines.
    
    Fixes bug 18643.
    
    Defines IPV6_RECVPATHMTU, IPV6_PATHMTU, and IPV6_DONTFRAG for Linux.
Comment 2 Nikos Mavrogiannopoulos 2015-07-08 15:07:30 UTC 
Thanks.
Comment 3 Fedora Update System 2015-07-08 19:06:25 UTC 
glibc-2.21-7.fc22 has been submitted as an update for Fedora 22.
https://admin.fedoraproject.org/updates/glibc-2.21-7.fc22
Comment 4 Fedora Update System 2015-07-13 19:15:50 UTC 
Package glibc-2.21-7.fc22:
* should fix your issue,
* was pushed to the Fedora 22 testing repository,
* should be available at your local mirror within two days.
Update it with:
# su -c 'yum update --enablerepo=updates-testing glibc-2.21-7.fc22'
as soon as you are able to.
Please go to the following url:
https://admin.fedoraproject.org/updates/FEDORA-2015-11443/glibc-2.21-7.fc22
then log in and leave karma (feedback).
Comment 5 Fedora Update System 2015-07-16 02:33:38 UTC 
glibc-2.21-7.fc22 has been pushed to the Fedora 22 stable repository.  If problems still persist, please make note of it in this bug report.
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