diff options
Diffstat (limited to 'hurd/running')
| -rw-r--r-- | hurd/running/debian/dhcp.mdwn | 97 | ||||
| -rw-r--r-- | hurd/running/openstack.mdwn | 14 | ||||
| -rw-r--r-- | hurd/running/requirementsforlivecd.mdwn | 24 |
3 files changed, 110 insertions, 25 deletions
diff --git a/hurd/running/debian/dhcp.mdwn b/hurd/running/debian/dhcp.mdwn index afa46799..849ff382 100644 --- a/hurd/running/debian/dhcp.mdwn +++ b/hurd/running/debian/dhcp.mdwn @@ -1,4 +1,5 @@ -[[!meta copyright="Copyright © 2011, 2012 Free Software Foundation, Inc."]] +[[!meta copyright="Copyright © 2011, 2012, 2013 Free Software Foundation, +Inc."]] [[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable id="license" text="Permission is granted to copy, distribute and/or modify this @@ -29,3 +30,97 @@ scripts, but has its own `/libexec/rc` script -- which integrates scripts from * [[!debbug 616290]] * [[Proper Hurdy DHCP support|hurd/translator/pfinet/dhcp]] + + * [[!message-id desc="dhclient aborting with a stack smashing error" + "874ngfvwn4.fsf@kepler.schwinge.homeip.net"]] + + IRC, freenode, #hurd, 2013-08-21: + + <teythoon> yay, I fixed the path of the dhcp leases file... + <teythoon> ... and now dhclient dies of a buffer overflow + <teythoon> fortunately the fix is rather simple, anyone who cares about + the security of his box just has to stop using isc software + <teythoon> the code is full of stuff like char foo[100]; /* surely + that's enough */ + <pinotree> note that our version of isc-dchp (the one in ports) is + older than the latest one available in unstable (which is still older + than the latest upstream releases) + <teythoon> so? + <pinotree> dunno, might have been fixed or not + <teythoon> ^^ yeah sure + <gnu_srs> A lot of software has these limitations and PATH_MAX, + MAXPATHLEN issues :( + <pinotree> having a limitation is not a problem per-se + <teythoon> no, only software written in c has these kind of problems + <pinotree> the problem is not checking whether the limits are hit + <teythoon> well, looking at the source of isc-dhcp my time is better + spent making another dhcp client work on hurd + <teythoon> also reading up on bug #616290 does make me want to avoid + touching it ever + <braunr> hehe + <gnu_srs> teythoon: somebody was offering an alternative to the isc + dhcpclient, but I think it was rejected by Samuel? + <teythoon> why would he do that? + <braunr> probably for compliance + <gnu_srs> He probably thought they would release a new version soon, is + 4.3.0 out yet? + <teythoon> well, as soon as my fixes for ifupdown go in, dhclient will + start crashing + <teythoon> no, there is no new version released + <teythoon> no major one that is + <teythoon> 4.2.5 is out + <gnu_srs> can't you just increase the buffer size, where is the problem + exactly? + <teythoon> I have no idea + <gnu_srs> The Hurd patches are not in 4.2.5, they were promised for + 4.3.0a1. + <gnu_srs> Still the buffer overflow problem might be present in 4.2.5 + if patched to build on Hurd. + <braunr> there, darnassus now has a fully featured git/gitweb service + <teythoon> :) + <teythoon> btw, I managed to reproduce the crash reliably + <teythoon> rm /var/lib/dhcp/*; dhclient -v /dev/eth0 ... *boom* + <teythoon> ditch the -v, everything works, and now that there is a + lease file, you can add the -v again and it works + <braunr> ew :) + <teythoon> and what has dhclient.c to say for its defense? + <teythoon> log_info("%s", ""); + <teythoon> hm, not much :/ + + IRC, freenode, #hurd, 2013-08-22: + + <teythoon> uh, the isc-dhcp situation is a huge pita, the source on + -ports does not compile anymore :/ + + IRC, freenode, #hurd, 2013-08-23: + + <gnu_srs> teythoon: Was it the slash in the network interface names + that caused the buffer overflow in dhclient? + <teythoon> gnu_srs: no, previously no dhcp leases file was written and + everything was fine + <pinotree> teythoon: did you really develop your patch against that old + version of ifupdown? + <teythoon> gnu_srs: now it is written, and for some reason dhclient + crashes *iff* -v is given *and* there is no previous lease file + <teythoon> pinotree: no, I did not. that was only reportbug including + information from my desktop machine without asking me + <teythoon> but when I first looked at ifupdown it was still a 6000 + lines noweb file >,< + <teythoon> that was fun + <pinotree> which version is it against? + <teythoon> hg tip + + IRC, freenode, #hurd, 2013-08-30: + + <tschwinge> teythoon: I understand correctly that you found that + id:"874ngfvwn4.fsf@kepler.schwinge.homeip.net" in fact was really + "just" a buffer overflow in the dhclient code? + <teythoon> tschwinge: ah, most interesting, I didn't realize that you + stumbled across this as well + <teythoon> to be honest I don't know what's going on there, I only + observed what I wrote in my report + <teythoon> for me it started crashing once the lease file was actually + a valid path (i.e. not to a non-existing directory b/c of the slashes + in /dev/eth0) + <teythoon> I tried to rebuild the package served on debian-ports, but + that failed diff --git a/hurd/running/openstack.mdwn b/hurd/running/openstack.mdwn new file mode 100644 index 00000000..af03583b --- /dev/null +++ b/hurd/running/openstack.mdwn @@ -0,0 +1,14 @@ +[[!meta copyright="Copyright © 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, +2013 Free Software Foundation, Inc."]] + +[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable +id="license" text="Permission is granted to copy, distribute and/or modify this +document under the terms of the GNU Free Documentation License, Version 1.2 or +any later version published by the Free Software Foundation; with no Invariant +Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license +is included in the section entitled [[GNU Free Documentation +License|/fdl]]."]]"""]] + +One can tell openstack to avoid using virtio drivers, and use emulated hardware instead: + + glance image-create --property hw_disk_bus=ide --property hw_cdrom_bus=ide --property hw_vif_model=rtl8139 --disk-format raw --container-format bare --name gnu-hurd --copy-from http://people.debian.org/~sthibault/hurd-i386/debian-hurd.img diff --git a/hurd/running/requirementsforlivecd.mdwn b/hurd/running/requirementsforlivecd.mdwn deleted file mode 100644 index 858988d1..00000000 --- a/hurd/running/requirementsforlivecd.mdwn +++ /dev/null @@ -1,24 +0,0 @@ -[[!meta copyright="Copyright © 2013 Free Software Foundation, Inc."]] - -[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable -id="license" text="Permission is granted to copy, distribute and/or modify this -document under the terms of the GNU Free Documentation License, Version 1.2 or -any later version published by the Free Software Foundation; with no Invariant -Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license -is included in the section entitled [[GNU Free Documentation -License|/fdl]]."]]"""]] - -HERE STARTS YOUR NEW CONTENT -- remove everything from here on, including this -line. - -By creating this page, you agree to assign copyright for your contribution to -the Free Software Foundation, <http://www.fsf.org/>. The Free Software -Foundation promises to always use a free documentation license (as per our -criteria of free documentation) when publishing your contribution. We grant -you back all your rights under copyright, including the rights to copy, modify, -and redistribute your contributions. - -We're requiring these copyright assignments, so that we'll easily be able to -include your contributions in official GNU documentation, such as the GNU Hurd -Reference Manual, etc. Send email to <hurd-maintainers@gnu.org> if there are -questions. |