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WiP: oem-factory-reset: unattended factory-reset + reownership #1849

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WiP: oem-factory-reset: unattended factory-reset + reownership #1849

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@tlaurion tlaurion commented Nov 19, 2024 •
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WiP

Putting oem-factory-reset user/oem mode to function unattended will happen here once #1850 is finished and merged.

size differences, taking x220-hotp-maximized to against master

Raw sizes diff (empty space below): 90084-84964=5120 bytes (eff dic is 17258 bytes)

master:

Nov 15 17:57:07 "/root/heads/build/x86/coreboot-24.02.01/x220-hotp-maximized/cbfstool" "/root/heads/build/x86/coreboot-24.02.01/x220-hotp-maximized/coreboot.rom" print
Nov 15 17:57:07 FMAP REGION: COREBOOT
Nov 15 17:57:07 Name                           Offset     Type           Size   Comp
Nov 15 17:57:07 cbfs_master_header             0x0        cbfs header        32 none
Nov 15 17:57:07 fallback/romstage              0x80       stage           98160 none
Nov 15 17:57:07 cpu_microcode_blob.bin         0x18080    microcode       26624 none
Nov 15 17:57:07 fallback/ramstage              0x1e8c0    stage          148872 LZMA (323424 decompressed)
Nov 15 17:57:07 config                         0x42ec0    raw              3359 LZMA (10703 decompressed)
Nov 15 17:57:07 revision                       0x43c40    raw               724 none
Nov 15 17:57:07 build_info                     0x43f40    raw               101 none
Nov 15 17:57:07 bootsplash.jpg                 0x44000    bootsplash      43282 none
Nov 15 17:57:07 fallback/dsdt.aml              0x4e940    raw             14715 none
Nov 15 17:57:07 vbt.bin                        0x52300    raw              1400 LZMA (3985 decompressed)
Nov 15 17:57:07 cmos_layout.bin                0x528c0    cmos_layout      1976 none
Nov 15 17:57:07 fallback/postcar               0x530c0    stage           29980 none
Nov 15 17:57:07 fallback/payload               0x5a640    simple elf    7705386 none
Nov 15 17:57:07 (empty)                        0x7b39c0   null            90084 none
Nov 15 17:57:07 bootblock                      0x7c99c0   bootblock       25600 none
Nov 15 17:57:07 2024-11-15 17:57:07+00:00 INSTALL   build/x86/coreboot-24.02.01/x220-hotp-maximized/coreboot.rom => build/x86/x220-hotp-maximized/heads-x220-hotp-maximized-v0.2.0-2422-g9ed131b.rom

this PR:

Nov 19 16:47:33 "/root/heads/build/x86/coreboot-24.02.01/x220-hotp-maximized/cbfstool" "/root/heads/build/x86/coreboot-24.02.01/x220-hotp-maximized/coreboot.rom" print
Nov 19 16:47:33 FMAP REGION: COREBOOT
Nov 19 16:47:33 Name                           Offset     Type           Size   Comp
Nov 19 16:47:33 cbfs_master_header             0x0        cbfs header        32 none
Nov 19 16:47:33 fallback/romstage              0x80       stage           98160 none
Nov 19 16:47:33 cpu_microcode_blob.bin         0x18080    microcode       26624 none
Nov 19 16:47:33 fallback/ramstage              0x1e8c0    stage          148872 LZMA (323424 decompressed)
Nov 19 16:47:33 config                         0x42ec0    raw              3361 LZMA (10703 decompressed)
Nov 19 16:47:33 revision                       0x43c40    raw               724 none
Nov 19 16:47:33 build_info                     0x43f40    raw               101 none
Nov 19 16:47:33 bootsplash.jpg                 0x44000    bootsplash      43282 none
Nov 19 16:47:33 fallback/dsdt.aml              0x4e940    raw             14715 none
Nov 19 16:47:33 vbt.bin                        0x52300    raw              1400 LZMA (3985 decompressed)
Nov 19 16:47:33 cmos_layout.bin                0x528c0    cmos_layout      1976 none
Nov 19 16:47:33 fallback/postcar               0x530c0    stage           29980 none
Nov 19 16:47:33 fallback/payload               0x5a640    simple elf    7710506 none
Nov 19 16:47:33 (empty)                        0x7b4dc0   null            84964 none
Nov 19 16:47:33 bootblock                      0x7c99c0   bootblock       25600 none
Nov 19 16:47:33 2024-11-19 16:47:33+00:00 INSTALL   build/x86/coreboot-24.02.01/x220-hotp-maximized/coreboot.rom => build/x86/x220-hotp-maximized/heads-x220-hotp-maximized-v0.2.0-2431-g9cd07cb.rom

detailed analysis

user@heads-tests-deb12-nix:/tmp$ wget -q https://output.circle-artifacts.com/output/job/79356cac-2be2-4ea8-a04e-21c602d0af87/artifacts/0/build/x86/x220-hotp-maximized/sizes.txt -O 1849
user@heads-tests-deb12-nix:/tmp$ wget -q https://output.circle-artifacts.com/output/job/0e4032fa-a6d7-4244-a116-883bb8deef8f/artifacts/0/build/x86/x220-hotp-maximized/sizes.txt -O master
user@heads-tests-deb12-nix:/tmp$ diff -u master 1849
--- master	2024-11-15 12:57:11.000000000 -0500
+++ 1849	2024-11-19 11:47:37.000000000 -0500
@@ -1,4 +1,4 @@
-2024-11-15 17:56:15+00:00 9ed131b79d5feca7ca689f86642f1367e1fa1478 clean
+2024-11-19 16:46:44+00:00 9cd07cbd1e8920eab3165eb560945fef565e650a clean
  2822912:/root/heads/build/x86/x220-hotp-maximized/bzImage
   930816:/root/heads/build/x86/x220-hotp-maximized/modules.cpio
 -----
@@ -75,7 +75,7 @@
     1740:./etc/terminfo/l/linux
      733:./etc/config
 -----
-  406016:/root/heads/build/x86/x220-hotp-maximized/heads.cpio
+  423424:/root/heads/build/x86/x220-hotp-maximized/heads.cpio
 -----
     1585:./.ash_history
       73:./.gnupg/gpg-agent.conf
@@ -84,10 +84,7 @@
     1046:./bin/cbfs-init
      221:./bin/cbfs.sh
     1933:./bin/change-time.sh
-   23638:./bin/config-gui.sh
     7703:./bin/flash-gui.sh
-    3293:./bin/flash.sh
-     372:./bin/flashprog-kgpe-d16-openbmc.sh
     1313:./bin/generic-init
     8977:./bin/gpg-gui.sh
      137:./bin/gpgv
@@ -99,9 +96,7 @@
     1503:./bin/kexec-iso-init
     2090:./bin/kexec-parse-bls
     5311:./bin/kexec-parse-boot
-   12014:./bin/kexec-save-default
     2376:./bin/kexec-save-key
-    9548:./bin/kexec-seal-key
    11751:./bin/kexec-select-boot
     2079:./bin/kexec-sign-config
      976:./bin/kexec-unseal-key
@@ -110,14 +105,12 @@
     2841:./bin/media-scan
     6012:./bin/mount-usb
     4610:./bin/network-init-recovery
-   54633:./bin/oem-factory-reset
     2348:./bin/oem-system-info-xx30
      324:./bin/poweroff
      841:./bin/qubes-measure-luks
      719:./bin/reboot
    15321:./bin/root-hashes-gui.sh
     6248:./bin/seal-hotpkey
-    2127:./bin/seal-totp
     1258:./bin/setconsolefont.sh
      657:./bin/talos-init
      189:./bin/tpm-reset
@@ -131,7 +124,13 @@
      352:./bin/wget-measure.sh
      410:./bin/wipe-totp
      639:./bin/xx30-flash.init
-   12373:./etc/ash_functions
+   23638:./bin/config-gui.sh
+    3293:./bin/flash.sh
+     372:./bin/flashprog-kgpe-d16-openbmc.sh
+   12014:./bin/kexec-save-default
+    9548:./bin/kexec-seal-key
+   50901:./bin/oem-factory-reset
+    2127:./bin/seal-totp
       17:./etc/distro/gpg-agent.conf
     1168:./etc/distro/keys/archlinux.key
     1629:./etc/distro/keys/qubes-4.1.key
@@ -140,20 +139,22 @@
      404:./etc/distro/keys/qubes-weekly-builds-signing-key.asc
    23488:./etc/distro/keys/tails.key
      197:./etc/fstab
-   27558:./etc/functions
       10:./etc/group
     5781:./etc/gui_functions
       20:./etc/hosts
-   24617:./etc/luks-functions
      813:./etc/mke2fs.conf
      174:./etc/motd
       26:./etc/passwd
       27:./etc/shells
-    9061:./init
+   12373:./etc/ash_functions
+   17258:./etc/diceware_dictionnaries/eff_short_wordlist_2_0.txt
+   31078:./etc/functions
+   24617:./etc/luks-functions
     1375:./mount-boot
        0:./run/cryptsetup/.placeholder
      924:./sbin/config-dhcp.sh
     1840:./sbin/insmod
+    9064:./init
 -----
- 4893184:build/x86/x220-hotp-maximized/initrd.cpio.xz
- 8388608:/root/heads/build/x86/x220-hotp-maximized/heads-x220-hotp-maximized-v0.2.0-2422-g9ed131b.rom
+ 4898304:build/x86/x220-hotp-maximized/initrd.cpio.xz
+ 8388608:/root/heads/build/x86/x220-hotp-maximized/heads-x220-hotp-maximized-v0.2.0-2431-g9cd07cb.rom

@tlaurion
diceware: add short list v2, requiring 4 dices and providing longer w…
f90701f 
…ords then short list v1 for easier to remember passphrases

This lists comes from https://www.eff.org/files/2016/09/08/eff_short_wordlist_2_0.txt
Refered in article: https://www.eff.org/dice

Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
initrd/etc/functions: add generate_passphrase logic
7e26b17 
Nothing uses it for the moment, needs to be called from recovery shell: bash, source /etc/functions. generate_passphrase

- parses dictionary to check how many dice rolls needed on first entry, defaults to EFF short list v2 (bigger words easier to remember, 4 dices roll instead of 5)
  - defaults to using initrd/etc/diceware_dictionnaries/eff_short_wordlist_2_0.txt, parametrable
  - make sure format of dictionary is 'digit word' and fail early otherwise: we expect EFF diceware format dictionaries
- enforces max length of 256 chars, parametrable, reduces number of words to fit if not override
- enforces default 3 words passphrase, parametrable
- enforces captialization of first letter, lowercase parametrable
- read multiple bytes from /dev/urandom to fit number of dice rolls

Unrelated: uniformize format of file

Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
WiP initrd/bin/oem-factory-reset: format unification
0ac0fde 
Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
WiP initrd/bin/oem-factory-reset: add --mode (oem/user) skeleton
329ed10 
Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
/etc/functions:: reuse detect_boot_device instead of trying only to m…
3322af5 
…ount /etc/fstab existing /boot partition (otherwise early 'o' to enter oem mode of oem-factory-reset

Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
WiP initrd/bin/oem-factory-reset: add qrcode+secet output loop until …
6df5e24 
…user press y (end of reownership wizard secret output)

Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
WiP
c8ed23d 
Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
WiP
e01a748 
Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion
WiP
9cd07cb 
works:
- oem and user mode passphrase generation
- qrcode

missing:
- unattended
  - luks reencryption + passphrase change for OEM mode (only input to be provided) with SINGLE passphrase when in unattended mode
    - same for user reownership when previously OEM reset unattended

Signed-off-by: Thierry Laurion <[email protected]>
@tlaurion tlaurion marked this pull request as draft November 19, 2024 15:49
@tlaurion tlaurion mentioned this pull request Nov 19, 2024
Merged
@tlaurion tlaurion changed the title WiP: oem-factory-reset: Generate passphrases, output in both text + qrcode prior of reboot WiP: oem-factory-reset: unattended factory-reset + reownership Nov 19, 2024
@tlaurion tlaurion mentioned this pull request Nov 20, 2024
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