Commit Graph

42 Commits

Author SHA1 Message Date
Peter Krempa
7a268c7c3a qemu: Move virQEMUFileOpenAs to qemu_domain.c
Commit 4362068979 moved the function to
util/virqemu.c which is compiled also on win32 and geteuid()/getegid()
doesn't exist there.

Move it to qemu_domain.c which is compiled only when the qemu driver is
enabled. Originally I didn't want to put it here as qemu_domain.c is a
code dump for helper functions but this is the least invasive fix.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-08-24 18:12:44 +02:00
Peter Krempa
4362068979 qemuOpenFileAs: Move into util/virqemu.c
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-08-24 16:40:42 +02:00
Fangge Jin
500810f3c5 src: fix word spell typos
Signed-off-by: Fangge Jin <fjin@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-07-09 10:01:41 +02:00
Laine Stump
f3c87f098e util: eliminate unnecessary labels
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-07-08 16:35:48 -04:00
Laine Stump
f2090f362d util: use g_auto() for all virBuffers
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-07-08 16:34:26 -04:00
Peter Krempa
78d30aa0bf qemu: Prepare for testing of 'netdev_add' props via qemuxml2argvtest
qemuxml2argv test suite is way more comprehensive than the hotplug
suite. Since we share the code paths for monitor and command line
hotplug we can easily test the properties of devices against the QAPI
schema.

To achieve this we'll need to skip the JSON->commandline conversion for
the test run so that we can analyze the pure properties. This patch adds
flags for the comand line generator and hook them into the
JSON->commandline convertor for -netdev. An upcoming patch will make use
of this new infrastructure.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-05-20 09:41:58 +02:00
Peter Krempa
da820e1c22 virQEMUBuildNetdevCommandlineFromJSON: Prepare for quirky 'guestfwd'
QEMU models guestfwd as:

 'guestfwd': [
                 { "str": "tcp:10.0.2.1:4600-chardev:charchannel0" },
                 { "str": "...."},
             ]

but the command line as:

guestfwd=tcp:10.0.2.1:4600-chardev:charchannel0,guestfwd=...

I guess the original idea was to make it extensible while not worrying
about adding another object for it. Either way it requires us to add yet
another JSON->cmdline convertor for arrays.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-05-20 09:41:57 +02:00
Peter Krempa
486bfba8b2 util: virqemu: Introduce virQEMUBuildNetdevCommandlineFromJSON
In preparation for converting the generator of -netdev to generate JSON
which will be used to do the command line rather than the other way
around we need to introduce a convertor which properly configures
virQEMUBuildCommandLineJSON for the quirks of -netdev.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-05-20 09:41:57 +02:00
Peter Krempa
3cc35bf88e virQEMUBuildCommandLineJSON: Add possibility for using 'on/off' instead of 'yes/no'
In some cases we use 'on/off' for command line arguments. Add a switch
which will select the preferred spelling for a specific usage.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-05-20 09:41:57 +02:00
Peter Krempa
220751091f virQEMUBuildCommandLineJSON: Allow skipping certain keys
Allow reusing this for formatting of netdev_add arguments into -netdev.
We need to be able to skip the 'type' property as it's used without the
prefix by our generator.

Add infrastructure which allows skipping property with a specific name.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-05-20 09:41:57 +02:00
Ján Tomko
0a125c7144 virBufferTrim: do not accept len
Always trim the full specified suffix.

All of the callers outside of tests were passing either
strlen or the actual length of the string.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-02-03 19:44:38 +01:00
Han Han
1bd17918b6 util: Do not assume comma after object id
For qemu object like rng-builtin, there are no properties after id
property. We should always set comma after object id. Otherwise it will
cause trailing comma on object:
    -object rng-builtin,id=ID,

Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-24 17:03:29 +01:00
Michal Privoznik
91d88aaf23 util: Use g_strdup_printf() instead of virAsprintf()
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-11-12 16:15:58 +01:00
Peter Krempa
0967708b81 util: buffer: Remove virBufferCheckError
The function now does not return an error so we can drop it fully.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-10-24 19:35:34 +02:00
Ján Tomko
45678bd70a Use g_autoptr instead of VIR_AUTOPTR
Since commit 44e7f02915
    util: rewrite auto cleanup macros to use glib's equivalent

VIR_AUTOPTR aliases to g_autoptr. Replace all of its use by the GLib
macro version.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-16 12:06:43 +02:00
Ján Tomko
1e2ae2e311 Use g_autofree instead of VIR_AUTOFREE
Since commit 44e7f02915
    util: rewrite auto cleanup macros to use glib's equivalent

VIR_AUTOFREE is just an alias for g_autofree. Use the GLib macros
directly instead of our custom aliases.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-10-16 12:06:43 +02:00
Shi Lei
34e9c29357 util: Fix misaligned arguments and misaligned conditions for [if|while|...]
This patch just fixes misaligned arguments and misaligned conditions
of src/util/*.c.

Signed-off-by: Shi Lei <shi_lei@massclouds.com>
2018-09-24 10:02:40 +02:00
Peter Krempa
6bbc5c3035 util: virqemu: Simplify debugging if building QOM object with missing args
Print the values so it's simpler to debug.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-08-21 15:46:06 +02:00
Sukrit Bhatnagar
9d399be949 util: qemu: use VIR_AUTOPTR for aggregate types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOPTR macro for declaring aggregate pointer variables,
majority of the calls to *Free functions can be dropped, which
in turn leads to getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-07 16:29:56 +02:00
Sukrit Bhatnagar
4fe2eea3aa util: qemu: use VIR_AUTOFREE instead of VIR_FREE for scalar types
By making use of GNU C's cleanup attribute handled by the
VIR_AUTOFREE macro for declaring scalar variables, majority
of the VIR_FREE calls can be dropped, which in turn leads to
getting rid of most of our cleanup sections.

Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-08-07 16:29:56 +02:00
John Ferlan
af0e6580cd storage: Rename encryption info variable for clarity
Change from @enc to @encinfo leaving @enc for the vol->target.encryption
in the storageBackendCreateQemuImgSetOptions code path.

Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Michal Privoznik <mprivozn@redhat.com>
2018-06-26 14:02:43 -04:00
Peter Krempa
d766021c60 qemu: Delete old unused code for adding objects to qemu
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:59 +02:00
Peter Krempa
efd32528d0 util: qemu: Introduce helper for formatting command line from new object props
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:59 +02:00
Peter Krempa
bf26dd222f qemu: Rename virQEMUBuildObjectCommandlineFromJSON
s/virQEMUBuildObjectCommandlineFromJSON/virQEMUBuildObjectCommandlineFromJSONType/

The function adds the object of a certain type. Change the name so that
we make room for the generic function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:59 +02:00
John Ferlan
9629fe258f storage_util: Rename virQEMUBuildLuksOpts
Rename to storageBackendCreateQemuImgOpts - which is what it's doing.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2018-05-15 16:54:58 -04:00
Peter Krempa
66cb1fa231 util: qemu: Don't access virJSONValue directly in virQEMUBuildCommandLineJSONRecurse
Use the accessors instead.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-04-03 13:34:33 +02:00
Peter Krempa
0f0ad1116c json: Replace access to virJSONValue->type by virJSONValueGetType
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-04-03 13:34:33 +02:00
Pavel Hrdina
9fd816ed33 Revert "util: virqemu: introduce virQEMUBuildBufferEscape"
This reverts commit 22b02f4492.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2017-06-12 12:45:42 +02:00
Pavel Hrdina
22b02f4492 util: virqemu: introduce virQEMUBuildBufferEscape
This will eventually replace virQEMUBuildBufferEscapeComma, however
it's not possible right now.  Some parts of the code that uses the
old function needs to be refactored.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2017-02-24 12:58:48 +01:00
Jiri Denemark
c1cb4cb9f6 virjson: Remove const from virJSONValueObjectForeachKeyValue
Almost none of our virJSONValue*Get* functions accept const virJSONValue
pointers and it wouldn't even make sense since we sometimes modify what
we get. And because there is no reason for preventing callers of
virJSONValueObjectForeachKeyValue from modifying the values they get in
each iteration we can just stop doing it.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-12-14 16:21:57 +01:00
John Ferlan
6aba53468a util: Remove need for local 'nelems'
Since it's only used in loop - just go direct.
2016-10-10 16:08:39 -04:00
Michal Privoznik
84b476e2bd virqemu: Reflect return type of virJSONValueArraySize()
The virJSONValueArraySize() function return ssize_t (with
possibly returning -1 if the passed json is not an array).
Storing the return value into size_t is possibly dangerous then.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-08-04 15:30:38 +02:00
Peter Krempa
f444101729 qemu: command: Add infrastructure for object specified disk sources
To allow richer definitions of disk sources add infrastructure that will
allow to register functionst generating a JSON object based definition.

This infrastructure will then convert the definition to the proper
command line syntax and use it in cases where it's necessary. This will
allow to keep legacy definitions for back-compat when possible and use
the new definitions for the configurations requiring them.
2016-07-27 13:33:10 +02:00
Peter Krempa
74df83a9eb util: qemu: Add support for numbered array members
Add support for converting objects nested in arrays with a numbering
discriminator on the command line. This syntax is used for the
object-based specification of disk source properties.
2016-07-27 13:33:10 +02:00
Peter Krempa
ca620e35ea util: qemu: Don't generate any extra commas in virQEMUBuildCommandLineJSON
The function would generate a leading comma. Let the callers properly
add commas by formatting the commas at the end and trimming the trailing
one.
2016-07-27 09:40:12 +02:00
Peter Krempa
b7eef33df2 util: qemu: Allow for different approaches to format JSON arrays
For use with memory hotplug virQEMUBuildCommandLineJSONRecurse attempted
to format JSON arrays as bitmap on the command line. Make the formatter
function configurable so that it can be reused with different syntaxes
of arrays such as numbered arrays for use with disk sources.

This patch extracts the code and adds a parameter for the function that
will allow to plug in different formatters.
2016-07-27 09:40:07 +02:00
Peter Krempa
cd86d6f465 util: qemu: Allow nested objects in JSON -> commandline generator
Move the iterator of objects to the recursive function so that nested
objects are supported by flattening the structure with '.' delimiters.
2016-07-27 09:39:58 +02:00
Peter Krempa
25a272ada4 util: qemu: Add support for user-passed strings in JSON->commandline
Until now the JSON->commandline convertor was used only for objects
created by qemu. To allow reusing it with disk formatter we'll need to
escape ',' as usual in qemu commandlines.
2016-07-27 09:39:53 +02:00
Peter Krempa
f0276c3489 util: qemu: Add wrapper for JSON -> commandline conversion
Refactor the command line generator by adding a wrapper (with
documentation) that will handle the outermost object iteration.

This patch also renames the functions and tweaks the error message for
nested arrays to be more universal.

The new function is then reused to simplify qemucommandutiltest.
2016-07-27 09:39:46 +02:00
John Ferlan
5e46d7d6b6 storage: Add support to create a luks volume
Partially resolves:
https://bugzilla.redhat.com/show_bug.cgi?id=1301021

If the volume xml was looking to create a luks volume take the necessary
steps in order to make that happen.

The processing will be:
 1. create a temporary file (virStorageBackendCreateQemuImgSecretPath)
   1a. use the storage driver state dir path that uses the pool and
       volume name as a base.

 2. create a secret object (virStorageBackendCreateQemuImgSecretObject)
   2a. use an alias combinding the volume name and "_luks0"
   2b. add the file to the object

 3. create/add luks options to the commandline (virQEMUBuildLuksOpts)
   3a. at the very least a "key-secret=%s" using the secret object alias
   3b. if found in the XML the various "cipher" and "ivgen" options

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-07-19 09:40:01 -04:00
John Ferlan
8215aab003 qemu: Move and rename qemuBufferEscapeComma
Move to virqemu and rename to virQEMUBuildBufferEscapeComma. This can then
be shared by the storage driver when it builds the command line for qemuimg
2016-07-19 07:13:09 -04:00
John Ferlan
1b5f1884a2 qemu: Move and rename qemuBuildObjectCommandlineFromJSON
Move the module from qemu_command.c to a new module virqemu.c and
rename the API to virQEMUBuildObjectCommandline.

This API will then be shareable with qemu-img and the need to build
a security object for luks support.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-06-06 13:44:51 -04:00