Commit Graph

7 Commits

Author SHA1 Message Date
Vadim Bendebury
65d3c277a2 Make cgpt_add error messages a little more verbose
When the cgpt utility complaints about parameter errors, it is
impossible to tell what exactly went wrong. This change consolidates
error definitions and adds a function to convert integer error values
into text messages.

BRANCH=none
BUG=none
TEST=manual
  . emerge-link vbooot_reference
  . copy generated `cgpt' to a Link device
  . run command with wrong arguments with respect to the existing GPT:
   localhost var # ./cgpt add -i 3 -b 3985408 -s 1757184 -t rootfs -l ROOT-A /dev/sda
   ERROR: cgpt add: Starting LBA overlaps
   ERROR: cgpt add: -i 3 -l ROOT-A -b 3985408 -s 1757184 -t 3CB8E202-3B7E-47DD-8A3C-7FF2A13CFCEC
  . on the host, in the chroot in src/platform/vboot_reference run

   $ make && make runtests

   observe all tests succeed

Change-Id: Ibd23ca0430a875f70524adc99e0509b26ae699b2
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/34003
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2012-09-26 12:02:24 -07:00
Bill Richardson
da77e6953c cgpt: Fix error in modifying size of an existing partition
Modifying the size of an existing partition without modifying the start as
well assumed the start was at block 0. Sometimes it was caught, often it
wasn't.

Fix the error, add a test to catch the problem.

BUG=chrome-os-partner:13090
BRANCH=all
TEST=manual

make && make runtests

Change-Id: I4f5a5031a90a3e78d886ed3573f61305316a3f1f
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/31418
Reviewed-by: Randall Spangler <rspangler@chromium.org>
2012-08-24 20:43:28 -07:00
Louis Yung-Chieh Lo
66b47ba37d cgpt: verify the modifications of 'cgpt add' before effected.
Current code only does basic check on parameters, but doesn't validate
if it can pass the CheckEntries(). So a user can accidentally break
the cgpt table by:

  cgpt add /dev/sda -i 6 -s 0  # 0 sector is not allowed for a partition.

  cgpt show /dev/sda
  ... INVALID_ENTRIES ...

This CL checks the new entry before we write it to disk. If new entry is
not good, we return fail.

Signed-off-by: Louis Yung-Chieh Lo <yjlou@chromium.org>
BUG=None
TEST=tested on link.
% cgpt add /dev/sda -i 6 -s 0
ERROR: cgpt add: A given parameter is not allowed.
% cgpt show /dev/sda
(no error, and partition 6 is still good)

Change-Id: Iee0ad24f73ca12028c0b8a0a5490b67c815488cf
Reviewed-on: https://gerrit.chromium.org/gerrit/25914
Commit-Ready: Yung-Chieh Lo <yjlou%chromium.org@gtempaccount.com>
Reviewed-by: Yung-Chieh Lo <yjlou%chromium.org@gtempaccount.com>
Tested-by: Yung-Chieh Lo <yjlou%chromium.org@gtempaccount.com>
2012-06-27 00:55:05 -07:00
Bill Richardson
23429d3d78 Let cgpt open devices in read-only mode when possible.
BUG=chromium-os:12430
TEST=manual

Running "make; make runtests" in src/platform/vboot_refererence will test
this change. Tests for use on a Chromebook are described in the bug report,
but will require a USB or SD card that has a physical write-protect switch.

Change-Id: I16a67bad3b59bec0981f4064f51fb1a29da65a90
Reviewed-on: https://gerrit.chromium.org/gerrit/21474
Tested-by: Bill Richardson <wfrichar@chromium.org>
Commit-Ready: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Che-Liang Chiou <clchiou@chromium.org>
2012-05-02 22:34:32 -07:00
Jay Srinivasan
5fac757abe Enable building of Cgpt C++ Library for 32-bit.
The existing library had a bunch of dependencies which are too many to
build for the 32-bit platform. So this checkin prunes the dependency
list by building only things that are absolutely required for the
functionality used in 32-bit Post-Installer.

Made the use of libuuid restricted only to cgpt and unit tests so that
libcgpt-cc.a doesn't depend on it.

BUG=chromium-os:25374
TEST=Built 32-bit and 64-bit. Tested 32-bit post-install.
Change-Id: Idd0826fdf507a95728fee8adac9520e26f05d469
Reviewed-on: https://gerrit.chromium.org/gerrit/16433
Reviewed-by: Don Garrett <dgarrett@chromium.org>
Reviewed-by: Sonny Rao <sonnyrao@chromium.org>
Commit-Ready: Jay Srinivasan <jaysri@chromium.org>
Tested-by: Jay Srinivasan <jaysri@chromium.org>
2012-02-23 15:10:38 -08:00
Jay Srinivasan
250549d3e7 Implementation of CgptManager C++ library and unit tests.
CgptManager exposes the cgpt commands via a C++ library so that
the post-installer for 32- to 64-bit upgrade can link directly
against a library and thus avoid any shell dependency.

The default make target will not build libcgpt-cc.a since it
requires some dependencies that are available only in chroot.
A separate follow-up checkin to the vboot_reference
ebuild will enable emerging the libcgpt-cc.a by default.

BUG=chromium-os:25374
TEST=Tested with the new unit tests for CgptManager,
     ran existing cgpt unit tests,  as well as running the
     cgpt commands manually. Built on both amd64 and x86.
     Tested that vboot_reference is also buildable outside of chroot.
     Tested that vboot_reference-firmware and vboot_reference-tests
     also build fine with these changes.
CQ-DEPEND=I99f6c321e09c2425eaa8171d78685d2d731954c8
Change-Id: I59a896255b8ea2fc8b1b2150ae7c4ff9d0769699
Reviewed-on: https://gerrit.chromium.org/gerrit/15730
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Gaurav Shah <gauravsh@chromium.org>
Commit-Ready: Jay Srinivasan <jaysri@chromium.org>
Tested-by: Jay Srinivasan <jaysri@chromium.org>
2012-02-16 19:18:08 -08:00
Jay Srinivasan
a058143982 Refactor of cgpt tool for 32->64 autoupdate work.
This check-in splits the cgpt into two layers. The top layer (cmd_* files) does
the command-line parsing and the bottom layer (cgpt_* files) does the actual
cgpt work.

This is done so that the bottom layer can be reused for the monolithic
C++ post-installer code that will be done in subsequent checkins.

BUG=chromium-os:25374
TEST=Tested with existing cgpt unit tests as well as running the cgpt commands manually.

Change-Id: I69a31eb3e867a1430cac9a694581331368aa7bb4
Reviewed-on: https://gerrit.chromium.org/gerrit/14940
Reviewed-by: Jay Srinivasan <jaysri@chromium.org>
Tested-by: Jay Srinivasan <jaysri@chromium.org>
Commit-Ready: Jay Srinivasan <jaysri@chromium.org>
2012-01-30 19:17:51 -08:00