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Found by 'make syntax-check'.
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guestfsd calls many different tools. Keeping track of all of them is
error prone. This patch introduces a new helper macro to put the command
string into its own ELF section:
GUESTFSD_EXT_CMD(C_variable, command_name);
This syntax makes it still possible to grep for used command names.
The actual usage of the collected list could be like this:
objcopy -j .guestfsd_ext_cmds -O binary daemon/guestfsd /dev/stdout |
tr '\0' '\n' | sort -u
The resulting output will be used to tell mkinitrd which programs to
copy into the initrd.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
RWMJ:
- Move str_vgchange at request of author.
- Fix snprintf call in daemon/debug.c
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See commit 840536ea5a0568296dfd3e483442c76b93c5a949
and commit 956fc5a3feacc970ea763697bf28fb686c875408.
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This updates commit 956fc5a3feacc970ea763697bf28fb686c875408 so
that we call udev_settle after rereading the partition table. This
ensures that the devices nodes for the new partitions have been
created.
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On fast machines sfdisk has some sort of race where it
fails to re-read the partition table it has just created
(it's not clear if this is a race in sfdisk, the kernel or
some other component).
This commit works around the problem by calling
blockdev --rereadpt after sfdisk operations, which
experience shows is enough to stop the problem from
happening.
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Change the appliance so PATH includes common directories. Thus
we don't need to hard-code paths to binaries (eg. "/sbin/fdisk")
everywhere.
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The RPC stubs already prefix the command name to error messages.
The daemon doesn't have to do this. As a (small) benefit this also
makes the daemon slightly smaller.
Code in the daemon such as:
if (argv[0] == NULL) {
reply_with_error ("passed an empty list");
return NULL;
}
now results in error messages like this:
><fs> command ""
libguestfs: error: command: passed an empty list
(whereas previously you would have seen ..command: command:..)
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* daemon/fallocate.c (do_fallocate): Format was not a string literal.
* daemon/sfdisk.c (sfdisk): Likewise.
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Also, ...
* src/generator.ml: Add DeviceList type, and propagate that change
out to all calling/interface code.
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* daemon/sfdisk.c (sfdisk): Don't let outrageous "extra_flag"
or "device" strings overflow a fixed-size buffer.
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Nearly every file-related function in daemons/*.c is affected:
Remove this pair of statements from each affected do_* function:
- NEED_ROOT (return -1);
- ABS_PATH (dir, return -1);
and change the type of the corresponding parameter to "const char *".
* src/generator.ml: Emit NEED_ROOT just once, even when there are two or
more Pathname args.
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Then update each affected function, removing each uses of RESOLVE_DEVICE,
now that it's generated in caller from stub.c.
* daemon/blockdev.c (call_blockdev): Remove use of RESOLVE_DEVICE.
* daemon/devsparts.c (do_mkfs): Likewise.
* daemon/ext2.c (do_e2fsck_f, do_get_e2label, do_get_e2uuid): Likewise.
(do_resize2fs, do_set_e2label, do_set_e2uuid, do_tune2fs_l): Likewise.
* daemon/fsck.c (do_fsck): Likewise.
* daemon/grub.c (do_grub_install): Likewise.
* daemon/lvm.c (do_lvremove, do_pvcreate, do_pvremove): Likewise.
(do_pvresize): Likewise.
* daemon/mount.c (do_mount_vfs): Likewise.
* daemon/ntfs.c (do_ntfs_3g_probe): Likewise.
* daemon/scrub.c (do_scrub_device): Likewise.
* daemon/sfdisk.c (sfdisk, sfdisk_flag): Likewise.
* daemon/swap.c (do_mkswap, do_mkswap_L, do_mkswap_U): Likewise.
(do_swapoff_device, do_swapon_device): Likewise.
* daemon/zero.c (do_zero): Likewise.
* daemon/zerofree.c (do_zerofree): Likewise.
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Use this command:
git grep -l -w IS_DEVICE|xargs perl -pi -e \
's/\b(?:IS_DEVICE)\b( \(.*?,) (.*?)\)/RESOLVE_DEVICE$1 return $2)/'
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Do it by running this command:
[exempted files are matched via .x-sc_TAB_in_indentation]
git ls-files \
| pcregrep -vf .x-sc_TAB_in_indentation \
| xargs pcregrep -l '^ *\t' \
| xargs perl -MText::Tabs -ni -le \
'$m=/^( *\t[ \t]*)(.*)/; print $m ? expand($1) . $2 : $_'
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This command is a saner interface to partitioning.
All partition sizes are specified in megabytes (not cylinders).
You don't need to specify the cyls/heads/secs parameters.
All the test code has been updated to use this, so it is now
CHS-independent (eg. when CHS changes as between IDE and virtio).
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Because udev operates asynchronously, we found errors which were
caused by a previous command (eg. sfdisk or pvremove) creating
or removing a device, and that change not having happened by the
time the next command was run.
This patch adds calls to '/sbin/udevadm settle' after any commands
which can add or remove device nodes.
If udev is not being used or not available, this should have no
effect. The command fails and this is silently ignored.
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Should use 'pclose' instead of 'fclose' (although fclose happens
to work because of glibc internals).
The result of pclose is the exit status of the command, so we
need to test this is != 0.
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sfdisk-disk-geometry commands. Pass --no-reread flag to sfdisk.
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