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* qga: update schema for guest-get-disks 'dependents' fieldMichael Roth2020-11-161-4/+6
| | | | | | | | | | | | | | | | | | | | | | | The recently-added 'guest-get-disk' command returns a list of GuestDiskInfo entries, which in turn have a 'dependents' field which lists devices these entries are dependent upon. Thus, 'dependencies' is a better name for this field. Address this by renaming the field accordingly. Additionally, 'dependents' is specified as non-optional, even though it's not implemented for w32. This is misleading, since it gives users the impression that a particular disk might not have dependencies, when in reality that information is simply not known to the guest agent. Address this by making 'dependents' an optional field, and only marking it as in-use when the facilities to obtain this information are available to the guest agent. Cc: Eric Blake <eblake@redhat.com> Cc: Tomáš Golembiovský <tgolembi@redhat.com> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com>
* qga: fix missing closedir() in qmp_guest_get_disks()Michael Roth2020-11-091-0/+3
| | | | | | | | | | | | | We opendir("/sys/block") at the beginning of the function, but we never close it prior to returning. Fixes: Coverity CID 1436130 Fixes: fed3956429d5 ("qga: add implementation of guest-get-disks for Linux") Reported-by: Peter Maydell <peter.maydell@linaro.org> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Cc: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com>
* qga: add implementation of guest-get-disks for LinuxTomáš Golembiovský2020-11-021-11/+292
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The command lists all disks (real and virtual) as well as disk partitions. For each disk the list of dependent disks is also listed and /dev path is used as a handle so it can be matched with "name" field of other returned disk entries. For disk partitions the "dependents" list is populated with the the parent device for easier tracking of hierarchy. Example output: { "return": [ ... { "name": "/dev/dm-0", "partition": false, "dependents": [ "/dev/sda2" ], "alias": "luks-7062202e-5b9b-433e-81e8-6628c40da9f7" }, { "name": "/dev/sda2", "partition": true, "dependents": [ "/dev/sda" ] }, { "name": "/dev/sda", "partition": false, "address": { "serial": "SAMSUNG_MZ7LN512HCHP-000L1_S1ZKNXAG822493", "bus-type": "sata", ... "dev": "/dev/sda", "target": 0 }, "dependents": [] }, ... ] } Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> *add missing stub for !defined(CONFIG_FSFREEZE) *remove unused deps_dir variable Signed-off-by: Michael Roth <michael.roth@amd.com>
* qga: add command guest-get-disksTomáš Golembiovský2020-11-021-0/+6
| | | | | | | | | | | | | | | | Add API and stubs for new guest-get-disks command. The command guest-get-fsinfo can be used to list information about disks and partitions but it is limited only to mounted disks with filesystem. This new command should allow listing information about disks of the VM regardles whether they are mounted or not. This can be usefull for management applications for mapping virtualized devices or pass-through devices to device names in the guest OS. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <michael.roth@amd.com>
* util: rename qemu_open() to qemu_open_old()Daniel P. Berrangé2020-09-161-3/+3
| | | | | | | | | | | We want to introduce a new version of qemu_open() that uses an Error object for reporting problems and make this it the preferred interface. Rename the existing method to release the namespace for the new impl. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
* qga: add command guest-get-devices for reporting VirtIO devicesTomáš Golembiovský2020-09-131-0/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add command for reporting devices on Windows guest. The intent is not so much to report the devices but more importantly the driver (and its version) that is assigned to the device. This gives caller the information whether VirtIO drivers are installed and/or whether inadequate driver is used on a device (e.g. QXL device with base VGA driver). Example: [ { "driver-date": "2019-08-12", "driver-name": "Red Hat VirtIO SCSI controller", "driver-version": "100.80.104.17300", "address": { "type": "pci", "data": { "device-id": 4162, "vendor-id": 6900 } } }, ... ] Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> *remove redundant glib autoptr declaration for GuestDeviceInfo Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga/commands-posix: Support fsinfo for non-PCI virtio devices, tooThomas Huth2020-09-131-1/+41
| | | | | | | | | | QEMU on s390x uses virtio via channel I/O instead of PCI by default. Add a function to detect and provide information for virtio-scsi and virtio-block devices here, too. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga/commands-posix: Move the udev code from the pci to the generic functionThomas Huth2020-09-131-29/+33
| | | | | | | | | | | The libudev-related code is independent from the other pci-related code and can be re-used for non-pci devices (like ccw devices on s390x). Thus move this part to the generic function. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1755075 Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga/commands-posix: Rework build_guest_fsinfo_for_real_device() functionThomas Huth2020-09-131-24/+41
| | | | | | | | | | We are going to support non-PCI devices soon. For this we need to split the generic GuestDiskAddress and GuestDiskAddressList memory allocation and list chaining into a separate function first. Signed-off-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* error: Eliminate error_propagate() manuallyMarkus Armbruster2020-07-101-3/+1Star
| | | | | | | | | | | When all we do with an Error we receive into a local variable is propagating to somewhere else, we can just as well receive it there right away. The previous two commits did that for sufficiently simple cases with Coccinelle. Do it for several more manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20200707160613.848843-37-armbru@redhat.com>
* qga: Plug unlikely memory leak in guest-set-memory-blocksMarkus Armbruster2020-07-021-0/+1
| | | | | | | | | | | | | | | | | transfer_memory_block() leaks an Error object when reading file /sys/devices/system/memory/memory<INDEX>/state fails with errno other than ENOENT, and @sys2memblk is false, i.e. when the state file exists but cannot be read (seems quite unlikely), and this is guest-set-memory-blocks, not guest-get-memory-blocks. Plug the leak. Fixes: bd240fca42d5f072fb758a71720d9de9990ac553 Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Cc: Hailiang Zhang <zhang.zhanghailiang@huawei.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Message-Id: <20200630090351.1247703-9-armbru@redhat.com>
* qga: Fix qmp_guest_get_memory_blocks() error handlingMarkus Armbruster2020-04-291-0/+3
| | | | | | | | | | | | | | | | | | | The Error ** argument must be NULL, &error_abort, &error_fatal, or a pointer to a variable containing NULL. Passing an argument of the latter kind twice without clearing it in between is wrong: if the first call sets an error, it no longer points to NULL for the second call. qmp_guest_get_memory_blocks() passes &local_err to transfer_memory_block() in a loop. If this fails in more than one iteration, it can trip error_setv()'s assertion. Fix it to break the loop. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200422130719.28225-14-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
* qga: Extract qmp_guest_file_read() to common commands.cPhilippe Mathieu-Daudé2020-04-151-19/+3Star
| | | | | | | Extract the common code shared by both POSIX/Win32 implementations. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: Extract guest_file_handle_find() to commands-common.hPhilippe Mathieu-Daudé2020-04-151-3/+4
| | | | | | | | As we are going to reuse this method, declare it in common header. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga/commands-posix: fix use after free of local_errVladimir Sementsov-Ogievskiy2020-04-041-0/+3
| | | | | | | | | | | local_err is used several times in guest_suspend(). Setting non-NULL local_err will crash, so let's zero it after freeing. Also fix possible leak of local_err in final if(). Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20200324153630.11882-7-vsementsov@virtuozzo.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* qga: rename Error ** parameter to more common errpVladimir Sementsov-Ogievskiy2019-12-181-1/+1
| | | | | | | | Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20191205174635.18758-13-vsementsov@virtuozzo.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
* qga: Fix guest-get-fsinfo error API violationsMarkus Armbruster2019-12-181-2/+4
| | | | | | | | | | | | | | | | | build_guest_fsinfo_for_virtual_device() dereferences @errp when build_guest_fsinfo_for_device() fails. That's wrong; see the big comment in error.h. Introduced in commit 46d4c5723e "qga: Add guest-get-fsinfo command". No caller actually passes null. Fix anyway: splice in a local Error *err, and error_propagate(). Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20191204093625.14836-10-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
* qga: fence guest-set-time if hwclock not availableCornelia Huck2019-12-141-1/+12
| | | | | | | | | | | | | | | | | | | The Posix implementation of guest-set-time invokes hwclock to set/retrieve the time to/from the hardware clock. If hwclock is not available, the user is currently informed that "hwclock failed to set hardware clock to system time", which is quite misleading. This may happen e.g. on s390x, which has a different timekeeping concept anyway. Let's check for the availability of the hwclock command and return QERR_UNSUPPORTED for guest-set-time if it is not available. Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Message-Id: <20191205115350.18713-1-cohuck@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
* qga: Add "guest-get-memory-block-info" to blacklistBasil Salman2019-11-041-1/+2
| | | | | | | | | | | | | Memory block commands are only supported for linux with sysfs, "guest-get-memory-block-info" was not in blacklist for other cases. Reported on: https://bugzilla.redhat.com/show_bug.cgi?id=1751431 Signed-off-by: Basil Salman <bsalman@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* Include qemu-common.h exactly where neededMarkus Armbruster2019-06-121-0/+1
| | | | | | | | | | | | | | | | No header includes qemu-common.h after this commit, as prescribed by qemu-common.h's file comment. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190523143508.25387-5-armbru@redhat.com> [Rebased with conflicts resolved automatically, except for include/hw/arm/xlnx-zynqmp.h hw/arm/nrf51_soc.c hw/arm/msf2-soc.c block/qcow2-refcount.c block/qcow2-cluster.c block/qcow2-cache.c target/arm/cpu.h target/lm32/cpu.h target/m68k/cpu.h target/mips/cpu.h target/moxie/cpu.h target/nios2/cpu.h target/openrisc/cpu.h target/riscv/cpu.h target/tilegx/cpu.h target/tricore/cpu.h target/unicore32/cpu.h target/xtensa/cpu.h; bsd-user/main.c and net/tap-bsd.c fixed up]
* qemu/queue.h: simplify reverse access to QTAILQPaolo Bonzini2019-01-111-1/+1
| | | | | | | The new definition of QTAILQ does not require passing the headname, remove it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* error: Remove NULL checks on error_propagate() callsMarkus Armbruster2018-12-181-5/+2Star
| | | | | | | | | | | | | | | | | Patch created mechanically by rerunning: $ spatch --sp-file scripts/coccinelle/error_propagate_null.cocci \ --macro-file scripts/cocci-macro-file.h \ --dir . --in-place Whitespace tidied up manually. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20181213173113.11211-1-armbru@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* qga: linux: return disk device in guest-get-fsinfoTomáš Golembiovský2018-10-311-1/+6
| | | | | | | | Report device node of the disk on Linux (e.g. "/dev/sda2"). Requirs libudev. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: linux: report disk serial numberTomáš Golembiovský2018-10-311-2/+30
| | | | | | | | | | | | | | | | | | | | | | Add reporting of disk serial number on Linux guests. The feature depends on libudev. Example: { "name": "dm-2", "mountpoint": "/", ... "disk": [ { "serial": "SAMSUNG_MZ7LN512HCHP-000L1_S1ZKNXAG822493", ... } ], } Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: ignore non present cpus when handling qmp_guest_get_vcpus()Igor Mammedov2018-10-301-56/+59
| | | | | | | | | | | | | | | | | If VM has VCPUs plugged sparselly (for example a VM started with 3 VCPUs (cpu0, cpu1 and cpu2) and then cpu1 was hotunplugged so only cpu0 and cpu2 are present), QGA will rise a error error: internal error: unable to execute QEMU agent command 'guest-get-vcpus': open("/sys/devices/system/cpu/cpu1/"): No such file or directory when virsh vcpucount FOO --guest is executed. Fix it by ignoring non present CPUs when fetching CPUs status from sysfs. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: fix file descriptor leakPaolo Bonzini2018-07-161-0/+1
| | | | | | | | | The file descriptor for /sys/power/state was never closed. Reported by Coverity. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: fix 'driver' leak in guest-get-fsinfoMarc-André Lureau2018-07-161-0/+1
| | | | | | | | | | | 'driver' is leaked when the loop is not broken. Leak introduced by commit 743c71d03c20d64f2bae5fba6f26cdf5e4b1bda6, spotted by ASAN. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: removing bios_supports_modeDaniel Henrique Barboza2018-07-031-40/+18Star
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bios_support_mode verifies if the guest has support for a certain suspend mode but it doesn't inform back which suspend tool provides it. The caller, guest_suspend, executes all suspend strategies in order again. After adding systemd suspend support, bios_support_mode now will verify for support for systemd, then pmutils, then Linux sys state file. In a worst case scenario where both systemd and pmutils isn't supported but Linux sys state is: - bios_supports_mode will check for systemd, then pmutils, then Linux sys state. It will tell guest_suspend that there is support, but it will not tell who provides it; - guest_suspend will try to execute (and fail) systemd suspend, then pmutils suspend, to only then use the Linux sys suspend. The time spent executing systemd and pmutils suspend was wasted and could be avoided, but only bios_support_mode knew it but didn't inform it back. A quicker approach is to nuke bios_supports_mode and control whether we found support at all with a bool flag inside guest_suspend. guest_suspend will search for suspend support and execute it as soon as possible. If the a given suspend mechanism fails, continue to the next. If no suspend support is found, the "not supported" message is still being sent back to the user. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: systemd hibernate/suspend/hybrid-sleep supportDaniel Henrique Barboza2018-07-031-0/+72
| | | | | | | | | | | | | | | | | | | | | | | | | pmutils isn't being supported by newer OSes like Fedora 27 or Mint. This means that the only suspend option QGA offers for these guests are writing directly into the Linux sys state file. This also means that QGA also loses the ability to do hybrid suspend in those guests - this suspend mode is only available when using pmutils. Newer guests can use systemd facilities to do all the suspend types QGA supports. The mapping in comparison with pmutils is: - pm-hibernate -> systemctl hibernate - pm-suspend -> systemctl suspend - pm-suspend-hybrid -> systemctl hybrid-sleep To discover whether systemd supports these functions, we inspect the status of the services that implements them. With this patch, we can offer hybrid suspend again for newer guests that do not have pmutils support anymore. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: removing switch statements, adding run_process_childDaniel Henrique Barboza2018-07-031-127/+88Star
| | | | | | | | | | | | | | | | | | | | | | | | This is a cleanup of the resulting code after detaching pmutils and Linux sys state file logic: - remove the SUSPEND_MODE_* macros and use an enumeration instead. At the same time, drop the switch statements at the start of each function and use the enumeration index to get the right binary/argument; - create a new function called run_process_child(). This function uses g_spawn_sync() to execute a shell command, returning the exit code. This is a common operation in the pmutils functions and will be used in the systemd implementation as well, so this function will avoid code repetition. There are more places inside commands-posix.c where this new run_process_child function can also be used, but one step at a time. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> *check/propagate local_err before setting errp directly Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: guest_suspend: decoupling pm-utils and sys logicDaniel Henrique Barboza2018-07-031-62/+108
| | | | | | | | | Following the same logic of the previous patch, let's also decouple the suspend logic from guest_suspend into specialized functions, one for each strategy we support at this moment. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: bios_supports_mode: decoupling pm-utils and sys logicDaniel Henrique Barboza2018-07-031-48/+68
| | | | | | | | | | | | | | | | | | | | In bios_supports_mode there is a verification to assert if the chosen suspend mode is supported by the pmutils tools and, if not, we see if the Linux sys state files supports it. This verification is done in the same function, one after the other, and it works for now. But, when adding a new suspend mechanism that will not necessarily follow the same return 0 or 1 logic of pmutils, this code will be hard to deal with. This patch decouple the two existing logics into their own functions, pmutils_supports_mode and linux_sys_state_supports_mode, which in turn are used inside bios_support_mode. The existing logic is kept but now it's easier to extend it. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: refactoring qmp_guest_suspend_* functionsDaniel Henrique Barboza2018-07-031-32/+55
| | | | | | | | | | | | | | | | To be able to add new suspend mechanisms we need to detach the existing QMP functions from the current implementation specifics. At this moment we have functions such as qmp_guest_suspend_ram calling bios_suspend_mode and guest_suspend passing the pmutils command and arguments as parameters. This patch removes this logic from the QMP functions, moving them to the respective functions that will have to deal with which binary to use. Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qemu-ga: make get-fsinfo work over pci bridgesMarc-André Lureau2018-07-031-4/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Iterate over the PCI bridges to lookup the PCI device associated with the block device. This allows to lookup the driver under the following syspath: /sys/devices/pci0000:00/0000:00:02.2/0000:03:00.0/virtio2/block/vda/vda3 It also works with an "old-style" Q35 libvirt hierarchy: root complex -> DMI-PCI bridge -> PCI-PCI bridge -> virtio controller, ex: /sys/devices/pci0000:00/0000:00:03.0/0000:01:01.0/0000:02:01.0/virtio1/block/vda/vda3 The setup can be reproduced with the following qemu command line (Thanks Marcel for help): qemu-system-x86_64 -M q35 \ -device i82801b11-bridge,id=dmi2pci_bridge,bus=pcie.0 -device pci-bridge,id=pci_bridge,bus=dmi2pci_bridge,addr=0x1,chassis_nr=1 -device virtio-blk-pci,scsi=off,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1,bus=pci_bridge,addr=0x1 For consistency with other syspath-related debug messages, replace a \"%s\" in the message with '%s'. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1567041 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: add mountpoint usage info to GuestFilesystemInfoChen Hanxiao2018-07-031-0/+15
| | | | | | | | | | | | | This patch adds support for getting the usage of mounted filesystem. The usage of fs stored as used_bytes and total_bytes. It's very useful when we try to monitor guest's filesystem. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Cc: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: check bytes count read by guest-file-readPrasad J Pandit2018-07-031-1/+1
| | | | | | | | | | | | While reading file content via 'guest-file-read' command, 'qmp_guest_file_read' routine allocates buffer of count+1 bytes. It could overflow for large values of 'count'. Add check to avoid it. Reported-by: Fakhri Zulkifli <mohdfakhrizulkifli@gmail.com> Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> Cc: qemu-stable@nongnu.org Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: unset frozen state if no mount points are frozenChen Hanxiao2018-07-031-0/+6
| | | | | | | | | | | | | | If we set mountpoints to qmp_guest_fsfreeze_freeze_list, we may got nothing to freeze as all mountpoints are not valid. So call ga_unset_frozen in this senario. Also, if we return 0 frozen fs, there is no need to call guest-fsfreeze-thaw. Cc: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Chen Hanxiao <chenhanxiao@gmail.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: use local path for local headersMichael S. Tsirkin2018-06-011-1/+1
| | | | | | | | | When pulling in headers that are in the same directory as the C file (as opposed to one in include/), we should use its relative path, without a directory. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
* use g_path_get_basename instead of basenameJulia Suvorova2018-03-061-2/+2
| | | | | | | | | | | | | | basename(3) and dirname(3) modify their argument and may return pointers to statically allocated memory which may be overwritten by subsequent calls. g_path_get_basename and g_path_get_dirname have no such issues, and therefore more preferable. Signed-off-by: Julia Suvorova <jusual@mail.ru> Message-Id: <1519888086-4207-1-git-send-email-jusual@mail.ru> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* qapi: Move qapi-schema.json to qapi/, rename generated filesMarkus Armbruster2018-03-021-1/+1
| | | | | | | | | | | | | | | | | | | Move qapi-schema.json to qapi/, so it's next to its modules, and all files get generated to qapi/, not just the ones generated for modules. Consistently name the generated files qapi-MODULE.EXT: qmp-commands.[ch] become qapi-commands.[ch], qapi-event.[ch] become qapi-events.[ch], and qmp-introspect.[ch] become qapi-introspect.[ch]. This gets rid of the temporary hacks in scripts/qapi/commands.py, scripts/qapi/events.py, and scripts/qapi/common.py. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-28-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> [eblake: Fix trailing dot in tpm.c, undo temporary hack for OSX toolchain] Signed-off-by: Eric Blake <eblake@redhat.com>
* qga: use ARRAY_SIZE macroPhilippe Mathieu-Daudé2018-02-101-1/+1
| | | | | | | | Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
* Include qapi/error.h exactly where neededMarkus Armbruster2018-02-091-0/+1
| | | | | | | | | | | | | | This cleanup makes the number of objects depending on qapi/error.h drop from 1910 (out of 4743) to 1612 in my "build everything" tree. While there, separate #include from file comment with a blank line, and drop a useless comment on why qemu/osdep.h is included first. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180201111846.21846-5-armbru@redhat.com> [Semantic conflict with commit 34e304e975 resolved, OSX breakage fixed]
* qga: add network stats to guest-network-get-interfacesZhiPeng Lu2017-10-261-1/+73
| | | | | | | | | | | | | we can get the network interface statistics inside a virtual machine by guest-network-get-interfaces command. it is very useful for us tomonitor and analyze network traffic. Signed-off-by: ZhiPeng Lu <lu.zhipeng@zte.com.cn> * don't rely on sizeof(wchar[]) for wchar[] indexing * avoid camelCase variable names * fix up getline() usage * condensed commit subject line Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* test-qga: add test for guest-get-osinfoTomáš Golembiovský2017-07-181-4/+9
| | | | | | | | | | | | | Add test for guest-get-osinfo command. Qemu-ga was modified to accept QGA_OS_RELEASE environment variable. If the variable is defined it is interpreted as path to the os-release file and it is parsed instead of the default paths. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> * move declarations to beginning of functions Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qemu-ga: add guest-get-osinfo commandTomáš Golembiovský2017-07-181-0/+135
| | | | | | | | | | | | | | | Add a new 'guest-get-osinfo' command for reporting basic information of the guest operating system. This includes machine architecture, version and release of the kernel and several fields from os-release file if it is present (as defined in [1]). [1] https://www.freedesktop.org/software/systemd/man/os-release.html Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com> Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> * moved declarations to beginning of functions * dropped unecessary initialization of struct utsname Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qemu-ga: check if utmpx.h is available on the systemTomáš Golembiovský2017-07-181-1/+16
| | | | | | | | | Commit 161a56a9065 added command guest-get-users and requires the utmpx.h (defined by POSIX) to work. It is however not always available (e.g. on OpenBSD) therefor a check for its existence is necessary. Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qemu-ga: remove useless allocationMarc-André Lureau2017-06-041-3/+1Star
| | | | | | | | | There is no need to duplicate a fixed string. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* qga: fix compiler warnings (clang 5)Philippe Mathieu-Daudé2017-05-071-3/+5
| | | | | | | | | | | | | | static code analyzer complain: qga/commands-posix.c:2127:9: warning: Null pointer passed as an argument to a 'nonnull' parameter closedir(dp); ^~~~~~~~~~~~ Reported-by: Clang Static Analyzer Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* qga: Add 'guest-get-users' commandVinzenz Feenstra2017-04-271-0/+60
| | | | | | | | | | | | | | | | | | | A command that will list all currently logged in users, and the time since when they are logged in. Examples: virsh # qemu-agent-command F25 '{ "execute": "guest-get-users" }' {"return":[{"login-time":1490622289.903835,"user":"root"}]} virsh # qemu-agent-command Win2k12r2 '{ "execute": "guest-get-users" }' {"return":[{"login-time":1490351044.670552,"domain":"LADIDA", "user":"Administrator"}]} Signed-off-by: Vinzenz Feenstra <vfeenstr@redhat.com> * make g_hash_table_contains compat func inline to avoid unused warnings Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* qga: don't fail if mount doesn't have slave devicesMichael Roth2017-03-301-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some cases the slave devices of a virtual block device are tracked by the parent in the corresponding sysfs node. For instance, if we have a loop-back mount of the form: /dev/loop3p1 on /home/mdroth/mnt type ext4 (rw,relatime,data=ordered) this will be reflected in sysfs as: /sys/devices/virtual/block/loop3/ ... /sys/devices/virtual/block/loop3/slaves /sys/devices/virtual/block/loop3/loop3p1 The current code however assumes the mounted virtual block device, loop3p1 in this case, contains the slaves directory, and reports an error otherwise. This breaks 'make check' in certain environments. Fix this by simply skipping attempts to generate disk topology information in these cases. Since this information is documented in QAPI as optionally-reported, this should be ok from an API perspective. In the future, this can possibly be improved upon by collecting topology information from the parent in these cases. Reported-by: Peter Maydell <peter.maydell@linaro.org> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Tested-by: Peter Maydell <peter.maydell@linaro.org>
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-12-18 12:18:16 +0100