similar to: [PATCH] Allow the initramfs to be persisted across root changes

initramfs-tools wants to validate the real init program before running it, as there is no way out once it has exec'd run-init. This is complicated by the increasing use of symlinks for /sbin/init and for /sbin itself. We can't simply resolve them with 'readlink -f' because any absolute symlinks will be resolved using the wrong root. Add a dry-run mode (-n option) to run-init

Building on the work in ff0a614bd724f6c4c6a5014a9955dc1bc028f336, this moves the capability code down into the run-init library, so that run-init can use it as well, via the new "-d" flag. Signed-off-by: Kees Cook <kees at outflux.net> --- usr/kinit/Kbuild | 3 +-- usr/kinit/capabilities.h | 10 ++++++++++ usr/kinit/kinit.c | 6 +++---

systemd supports switching back to the initramfs during shutdown in order to make it easier to clean up the root file system. This is desirable in order to allow us to remove keys from RAM before rebooting, making it harder to obtain confidential information by rebooting into an environment that scrapes RAM contents. Signed-off-by: Matthew Garrett <mjg59 at google.com> ---

Commit-ID: 603f1bb024a03d9c50a89e7256ae7814292baf06 Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=603f1bb024a03d9c50a89e7256ae7814292baf06 Author: Matthew Garrett <matthewgarrett at google.com> AuthorDate: Thu, 18 Apr 2019 12:12:27 -0700 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Sat, 20 Apr 2019 17:11:34 +0100 [klibc] run-init: Allow

Commit-ID: 10059fddba9f8bec6aeb0d37d217df6d65e64c3b Gitweb: http://git.kernel.org/?p=libs/klibc/klibc.git;a=commit;h=10059fddba9f8bec6aeb0d37d217df6d65e64c3b Author: Ben Hutchings <ben at decadent.org.uk> AuthorDate: Sun, 17 Jan 2016 19:50:28 +0000 Committer: Ben Hutchings <ben at decadent.org.uk> CommitDate: Wed, 2 Jan 2019 03:08:04 +0000 [klibc] run-init: Add dry-run mode

The following patches come from Debian and/or Ubuntu packages of klibc. Ben. Ben Hutchings (1): [klibc] run-init: Add dry-run mode Jay Vosburgh (1): [klibc] ipconfig: Use separate sockets for DHCP from multiple interfaces Mathieu Trudel-Lapierre (1): [klibc] ipconfig: Set broadcast when sending DHCPREQUEST and DHCPDISCOVER YunQiang Su (1): [klibc] mips: setjmp.S: don't

This patchset applies to klibc mainline. As is it will probably collide with Maximilian's recent patch to rename run-init to switch_root posted last week. To boot an untrusted environment with certain capabilities locked out, we'd like to be able to drop the capabilities up front from early userspace, before we actually transition onto the root volume. This patchset implements this by

On a train ride to Bruxelles, brought out my axe and directly attacked run_init(8). run_init(8) is dead, long live switch_root(8). The next run on switch_root(8) involves fdopendir, so another push for the upcoming stdio 1.6 branch. The following is boot tested with initramfs-tools, kinit(8) tests would very much be appreciated!? Michal Suchanek (1): [klibc] switch_root: Fix single file

hello, Preparing my first klibc maintainenace release. :) My plan is to have the patches cook in klibc-queue and once everythings is fine deploy them in the main klibc repo. Please test/review belows patches. I plan to release the current queue really soon for klibc 1.5.20 due to the urgent ipconfig fixes. For now you find my patch queue on:

Hi I had some doubts regarding what all the init application should do: >> so, that should that application do? >> - mount /dev/hda1 /new-root >> - cd /new-root >> - run-init 1. Of what I understand, before exitting, init should mount the realroot and execute the init process. Is realroot the '/' or the empty directory created (in the cpio archive) ?

On Fri, Nov 06, 2015 at 07:23:59PM -0800, Gordon Messmer wrote: > On 11/06/2015 06:30 PM, Jobst Schmalenbach wrote: > >What troubles me that a simple restart of the daemon fixes everything but it does not come up on reboot. > > Running the service script manually may not give you the same > selinux context as on boot. Services should be started using > "run_init"

Hi, Here's a try at writing an initramfs HOWTO. This is basically a write-up of a number of interesting emails I collected over time. It could probably use an editor, more fact-checking and a bunch of other good things, but it should be better than nothing ;-) Daniel -------------- next part -------------- INITRAMFS HOWTO 0) What are klibc and initramfs? Initramfs is a ramfs into which

Hello, I was using a bunch of cpios in initramfs as a working system, and wondering why the unused files weren't being paged out to swap. So I reread ramfs-rootfs-initramfs.txt and now I know. So I wrote the attached utility. It creates a tmpfs, moves all files on the initramfs, moves / and executes the real init. It works, even with hardlinks, but it isn't the correct approach. Have

Hi all, I've been working with the ext3-fs for several months (since 0.0.2c), and it works pretty fine for me, but I haven't found out, how I works to migrate my root-partition from ext2 to ext3. I tried it with the commands at the lilo-prompt, but it didn't work. I only received a kernel panic. Any ideas, how I can migrate to ext3 on my root-partition? tnx, Joachim -- Joachim

Hi. I am still having problems: Quick synopsis: NT workstation cannot have machine acccount successfully trusted by PDC. ---------Here’s my problem------(LONG)------------------ I have several W2k Workstations, with a SAMBA 2.2.3 PDC. I screwed up something, and removed all of the important parts of the server validation. Here's the story: OUTLAND is domain, W2k/ clients are milo and

As I reported a while back rsync doesn't handle metadata (permissions and ownership) in dryrun mode. I offered to make a patch and that offer still stands. I didn't have the time for it until now and want to pick it up again. I had some ugly hack back then but I want to redo it in a clean way. I would like some input on my thoughts. IMHO, it would be ideally if the check for dry_run

In case anyone else is trying to make this work, here is what I did (Before 0.7.4 I had patched the regex in zentest redgreen, but that is not used any more) To use directly, it is very simple. In rspec_autotest/lib/ rspec_autotest.rb, add a -c to the spec_command in the initializer function: @spec_command = "spec -c --diff unified" This won''t help however if you want

On Sat, 7 Nov 2015, Fred Smith wrote: >On Fri, Nov 06, 2015 at 07:23:59PM -0800, Gordon Messmer wrote: >>On 11/06/2015 06:30 PM, Jobst Schmalenbach wrote: >>>What troubles me that a simple restart of the daemon fixes everything but it does not come up on reboot. >> >>Running the service script manually may not give you the same >>selinux context as on boot.

Hi. I am stuck with this one and I do not know where and how to search for this problem nor do I know how to fix it. When I reboot one of our servers (CentOS 6.7, selinux target, yum fully updated) the http server loads fine (no erros) but when accessing one of the server's websites it displays "Forbidden", restarting the httpd server (command line) will give full access and all is

smbclient (and smbtar) in version 2.2.7a (and prior) has problems with large files (> 4GB). The following patch (against 2.2.7a) fixes all known problems with this. This code has been checked into the CVS tree in all branches as well. -- ====================================================================== Herb Lewis Silicon Graphics Networking Engineer