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2025-02-26qga: Add log to guest-fsfreeze-thaw commandKonstantin Kostiuk1-0/+2
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20241216154552.213961-2-kkostiuk@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2025-01-06qga: implement a 'guest-get-load' commandDaniel P. Berrangé1-0/+20
Provide a way to report the process load average, via a new 'guest-get-load' command. This is only implemented for POSIX platforms providing 'getloadavg'. Example illustrated with qmp-shell: (QEMU) guest-get-load { "return": { "load15m": 1.546875, "load1m": 1.669921875, "load5m": 1.9306640625 } } Windows has no native equivalent API, but it would be possible to simulate it as illustrated here (BSD-3-Clause): https://github.com/giampaolo/psutil/pull/1485 This is left as an exercise for future contributors. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Message-ID: <20241202121927.864335-1-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-11-04qemu-ga: Fix a SIGSEGV in ga_run_command() helperSunil Nimmagadda1-1/+1
qemu-ga on a NetBSD -current VM terminates with a SIGSEGV upon receiving 'guest-set-time' command... Core was generated by `qemu-ga'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x000000000cd37a40 in ga_pipe_read_str (fd=fd@entry=0xffffff922a20, str=str@entry=0xffffff922a18) at ../qga/commands-posix.c:88 88 *str[len] = '\0'; [Current thread is 1 (process 1112)] (gdb) bt #0 0x000000000cd37a40 in ga_pipe_read_str (fd=fd@entry=0xffffff922a20, str=str@entry=0xffffff922a18) at ../qga/commands-posix.c:88 #1 0x000000000cd37b60 in ga_run_command (argv=argv@entry=0xffffff922a90, action=action@entry=0xcda34b8 "set hardware clock to system time", errp=errp@entry=0xffffff922a70, in_str=0x0) at ../qga/commands-posix.c:164 #2 0x000000000cd380c4 in qmp_guest_set_time (has_time=<optimized out>, time_ns=<optimized out>, errp=errp@entry=0xffffff922ad0) at ../qga/commands-posix.c:304 #3 0x000000000cd253d8 in qmp_marshal_guest_set_time (args=<optimized out>, ret=<optimized out>, errp=0xffffff922b48) at qga/qga-qapi-commands.c:193 #4 0x000000000cd4e71c in qmp_dispatch (cmds=cmds@entry=0xcdf5b18 <ga_commands>, request=request@entry=0xf3c711a4b000, allow_oob=allow_oob@entry=false, cur_mon=cur_mon@entry=0x0) at ../qapi/qmp-dispatch.c:220 #5 0x000000000cd36524 in process_event (opaque=0xf3c711a79000, obj=0xf3c711a4b000, err=0x0) at ../qga/main.c:677 #6 0x000000000cd526f0 in json_message_process_token (lexer=lexer@entry=0xf3c711a79018, input=0xf3c712072480, type=type@entry=JSON_RCURLY, x=28, y=1) at ../qobject/json-streamer.c:99 #7 0x000000000cd93860 in json_lexer_feed_char (lexer=lexer@entry=0xf3c711a79018, ch=125 '}', flush=flush@entry=false) at ../qobject/json-lexer.c:313 #8 0x000000000cd93a00 in json_lexer_feed (lexer=lexer@entry=0xf3c711a79018, buffer=buffer@entry=0xffffff922d10 "{\"execute\":\"guest-set-time\"}\n", size=<optimized out>) at ../qobject/json-lexer.c:350 #9 0x000000000cd5290c in json_message_parser_feed (parser=parser@entry=0xf3c711a79000, buffer=buffer@entry=0xffffff922d10 "{\"execute\":\"guest-set-time\"}\n", size=<optimized out>) at ../qobject/json-streamer.c:121 #10 0x000000000cd361fc in channel_event_cb (condition=<optimized out>, data=0xf3c711a79000) at ../qga/main.c:703 #11 0x000000000cd3710c in ga_channel_client_event (channel=<optimized out>, condition=<optimized out>, data=0xf3c711b2d300) at ../qga/channel-posix.c:94 #12 0x0000f3c7120d9bec in g_main_dispatch () from /usr/pkg/lib/libglib-2.0.so.0 #13 0x0000f3c7120dd25c in g_main_context_iterate_unlocked.constprop () from /usr/pkg/lib/libglib-2.0.so.0 #14 0x0000f3c7120ddbf0 in g_main_loop_run () from /usr/pkg/lib/libglib-2.0.so.0 #15 0x000000000cda00d8 in run_agent_once (s=0xf3c711a79000) at ../qga/main.c:1522 #16 run_agent (s=0xf3c711a79000) at ../qga/main.c:1559 #17 main (argc=<optimized out>, argv=<optimized out>) at ../qga/main.c:1671 (gdb) The commandline options used on the host machine... qemu-system-aarch64 \ -machine type=virt,pflash0=rom \ -m 8G \ -cpu host \ -smp 8 \ -accel hvf \ -device virtio-net-pci,netdev=unet \ -device virtio-blk-pci,drive=hd \ -drive file=netbsd.qcow2,if=none,id=hd \ -netdev user,id=unet,hostfwd=tcp::2223-:22 \ -object rng-random,filename=/dev/urandom,id=viornd0 \ -device virtio-rng-pci,rng=viornd0 \ -serial mon:stdio \ -display none \ -blockdev node-name=rom,driver=file,filename=/opt/homebrew/Cellar/qemu/9.0.2/share/qemu/edk2-aarch64-code.fd,read-only=true \ -chardev socket,path=/tmp/qga_netbsd.sock,server=on,wait=off,id=qga0 \ -device virtio-serial \ -device virtconsole,chardev=qga0,name=org.qemu.guest_agent.0 This patch rectifies the operator precedence while assigning the NUL terminator. Fixes: c3f32c13a325f1ca9a0b08c19fefe9e5cc04289d Signed-off-by: Sunil Nimmagadda <sunil@nimmagadda.net> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Link: https://lore.kernel.org/r/m15xppk9qg.fsf@nimmagadda.net Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-10-18error: Drop superfluous #include "qapi/qmp/qerror.h"Markus Armbruster1-1/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20241010150144.986655-2-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-07-19qga/commands-posix: Make ga_wait_child() return booleanZhao Liu1-4/+4
Make ga_wait_child() return boolean and check the returned boolean in ga_run_command() instead of dereferencing @errp. Cc: Michael Roth <michael.roth@amd.com> Cc: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Message-ID: <20240716162351.270095-1-zhao1.liu@intel.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: centralize logic for disabling/enabling commandsDaniel P. Berrangé1-6/+0
It is confusing having many different pieces of code enabling and disabling commands, and it is not clear that they all have the same semantics, especially wrt prioritization of the block/allow lists. The code attempted to prevent the user from setting both the block and allow lists concurrently, however, the logic was flawed as it checked settings in the configuration file separately from the command line arguments. Thus it was possible to set a block list in the config file and an allow list via a command line argument. The --dump-conf option also creates a configuration file with both keys present, even if unset, which means it is creating a config that cannot actually be loaded again. Centralizing the code in a single method "ga_apply_command_filters" will provide a strong guarantee of consistency and clarify the intended behaviour. With this there is no compelling technical reason to prevent concurrent setting of both the allow and block lists, so this flawed restriction is removed. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Message-ID: <20240712132459.3974109-23-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands not supported on other UNIXDaniel P. Berrangé1-8/+0
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on other UNIX. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-18-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands requiring utmpxDaniel P. Berrangé1-9/+1
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the get-users command on POSIX platforms lacking required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-17-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands requiring fstrimDaniel P. Berrangé1-13/+0
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the filesystem trimming commands on POSIX platforms lacking required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-15-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands requiring fsfreezeDaniel P. Berrangé1-47/+0
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the schema to fully exclude generation of the filesystem freezing commands on POSIX platforms lacking the required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-14-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands only supported on WindowsDaniel P. Berrangé1-9/+0
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on non-Windows. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-13-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands requiring linux/win32Daniel P. Berrangé1-28/+2
Some commands were blocked based on CONFIG_FSFREEZE, but their impl had nothing todo with CONFIG_FSFREEZE, and were instead either Linux-only, or Win+Linux-only. Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the stats and fsinfo commands on platforms that can't support them. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-12-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands requiring getifaddrsDaniel P. Berrangé1-13/+0
Rather than creating stubs for every comamnd that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the network interface command on POSIX platforms lacking getifaddrs(). The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-11-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands unsupported on non-Linux POSIXDaniel P. Berrangé1-66/+0
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on non-Linux POSIX platforms The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240712132459.3974109-10-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: conditionalize schema for commands unsupported on WindowsDaniel P. Berrangé1-1/+1
Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on Windows. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This changes the error message for affected commands from {"class": "CommandNotFound", "desc": "Command FOO has been disabled"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} This also fixes an accidental inconsistency where some commands (guest-get-diskstats & guest-get-cpustats) are implemented as stubs, yet not added to the blockedrpc list. Those change their error message from {"class": "GenericError, "desc": "this feature or command is not currently supported"} to {"class": "CommandNotFound", "desc": "The command FOO has not been found"} The final additional benefit is that the QGA protocol reference now documents what conditions enable use of the command. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240712132459.3974109-9-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: move linux memory block command impls to commands-linux.cDaniel P. Berrangé1-310/+1
The qmp_guest_{set,get}_{memory_blocks,block_info} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c This also removes a "#ifdef CONFIG_LINUX" that was nested inside a "#ifdef __linux__". Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-7-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: move linux disk/cpu stats command impls to commands-linux.cDaniel P. Berrangé1-199/+0
The qmp_guest_{diskstats,cpustats} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c This also removes a "#ifdef CONFIG_LINUX" that was nested inside a "#ifdef __linux__". Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Message-ID: <20240712132459.3974109-6-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: move linux fs/disk command impls to commands-linux.cDaniel P. Berrangé1-909/+0
The qmp_guest_{fstrim, get_fsinfo, get_disks} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240712132459.3974109-5-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: move linux suspend command impls to commands-linux.cDaniel P. Berrangé1-265/+0
The qmp_guest_suspend_{disk,ram,hybrid} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240712132459.3974109-4-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: move linux vcpu command impls to commands-linux.cDaniel P. Berrangé1-139/+0
The qmp_guest_set_vcpus and qmp_guest_get_vcpus command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20240712132459.3974109-3-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-07-19qga: drop blocking of guest-get-memory-block-size commandDaniel P. Berrangé1-1/+1
This command has never existed in tree, since it was renamed to guest-get-memory-block-info before being merged. Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20240712132459.3974109-2-berrange@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-03qga/commands-posix: fix typo in qmp_guest_set_user_passwordPaolo Bonzini1-1/+1
qga/commands-posix.c does not compile on FreeBSD due to a confusion between "chpasswdata" (wrong) and "chpasswddata" (used in the #else branch). Fixes: 0e5b75a390 ("qga/commands-posix: qmp_guest_set_user_password: use ga_run_command helper") Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-05-01qga/commands-posix: qmp_guest_set_user_password: use ga_run_command helperAndrey Drobyshev1-83/+13
There's no need to check for the existence of the "chpasswd", "pw" executables, as the exec() call will do that for us. Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-8-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-01qga/commands-posix: don't do fork()/exec() when suspending via sysfsAndrey Drobyshev1-36/+5
Since commit 246d76eba ("qga: guest_suspend: decoupling pm-utils and sys logic") pm-utils logic is running in a separate child from the sysfs logic. Now when suspending via sysfs we don't really need to do that in a separate process as we only need to perform one write to /sys/power/state. Let's just use g_file_set_contents() to simplify things here. Suggested-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-7-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-01qga/commands-posix: execute_fsfreeze_hook: use ga_run_command helperAndrey Drobyshev1-32/+3
There's no need to check for the existence of the hook executable, as the exec() call will do that for us. Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-6-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-01qga/commands-posix: qmp_guest_set_time: use ga_run_command helperAndrey Drobyshev1-40/+3
There's no need to check for the existence of "/sbin/hwclock", the exec() call will do that for us. Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-5-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-01qga/commands-posix: qmp_guest_shutdown: use ga_run_command helperAndrey Drobyshev1-33/+6
Also remove the G_GNUC_UNUSED attribute added in the previous commit from the helper. Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-4-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-01qga: introduce ga_run_command() helper for guest cmd executionAndrey Drobyshev1-0/+150
When executing guest commands in *nix environment, we repeat the same fork/exec pattern multiple times. Let's just separate it into a single helper which would also be able to feed input data into the launched process' stdin. This way we can avoid code duplication. To keep the history more bisectable, let's replace qmp commands implementations one by one. Also add G_GNUC_UNUSED attribute to the helper and remove it in the next commit. Originally-by: Yuri Pudgorodskiy <yur@virtuozzo.com> Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-3-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-05-01qga: guest-get-fsinfo: add optional 'total-bytes-privileged' fieldAndrey Drobyshev1-0/+2
Since the commit 25b5ff1a86 ("qga: add mountpoint usage info to GuestFilesystemInfo") we have 2 values reported in guest-get-fsinfo: used = (f_blocks - f_bfree), total = (f_blocks - f_bfree + f_bavail) as returned by statvfs(3). While on Windows guests that's all we can get with GetDiskFreeSpaceExA(), on POSIX guests we might also be interested in total file system size, as it's visible for root user. Let's add an optional field 'total-bytes-privileged' to GuestFilesystemInfo struct, which'd only be reported on POSIX and represent f_blocks value as returned by statvfs(3). While here, also tweak the docs to reflect better where those values come from. Signed-off-by: Andrey Drobyshev <andrey.drobyshev@virtuozzo.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Link: https://lore.kernel.org/r/20240320161648.158226-2-andrey.drobyshev@virtuozzo.com Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2024-01-30qga: Solaris has net/if_arp.h and netinet/if_ether.h but not ETHER_ADDR_LENNick Briggs1-1/+4
Solaris has net/if_arp.h and netinet/if_ether.h rather than net/ethernet.h, but does not define ETHER_ADDR_LEN, instead providing ETHERADDRL. Signed-off-by: Nick Briggs <nicholas.h.briggs@gmail.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2023-09-08qga/: spelling fixesMichael Tokarev1-1/+1
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Eric Blake <eblake@redhat.com>
2023-05-04qga: Fix suspend on Linux guests without systemdMark Somerville1-6/+6
Allow the Linux guest agent to attempt each of the suspend methods (systemctl, pm-* and writing to /sys) in turn. Prior to this guests without systemd failed to suspend due to `guest_suspend` returning early regardless of the return value of `systemd_supports_mode`. Signed-off-by: Mark Somerville <mark@qpok.net> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2023-05-04qga/linux: add usb support to guest-get-fsinfoKfir Manor1-1/+5
Signed-off-by: Kfir Manor <kfir@daynix.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2023-02-08qga: Clean up includesMarkus Armbruster1-1/+0
This commit was created with scripts/clean-includes. All .c should include qemu/osdep.h first. The script performs three related cleanups: * Ensure .c files include qemu/osdep.h first. * Including it in a .h is redundant, since the .c already includes it. Drop such inclusions. * Likewise, including headers qemu/osdep.h includes is redundant. Drop these, too. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-Id: <20230202133830.2152150-11-armbru@redhat.com>
2023-01-09error handling: Use RETRY_ON_EINTR() macro where applicableNikita Ivanov1-3/+1
There is a defined RETRY_ON_EINTR() macro in qemu/osdep.h which handles the same while loop. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/415 Signed-off-by: Nikita Ivanov <nivanov@cloudlinux.com> Message-Id: <20221023090422.242617-3-nivanov@cloudlinux.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> [thuth: Dropped the hunk that changed socket_accept() in libqtest.c] Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-12-20qga: Add initial OpenBSD and NetBSD supportBrad Smith1-2/+7
qga: Add initial OpenBSD and NetBSD support Signed-off-by: Brad Smith <brad@comstyle.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-12-14qapi qga: Elide redundant has_FOO in generated CMarkus Armbruster1-24/+8
The has_FOO for pointer-valued FOO are redundant, except for arrays. They are also a nuisance to work with. Recent commit "qapi: Start to elide redundant has_FOO in generated C" provided the means to elide them step by step. This is the step for qga/qapi-schema.json. Said commit explains the transformation in more detail. The invariant violations mentioned there do not occur here. Cc: Michael Roth <michael.roth@amd.com> Cc: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20221104160712.3005652-30-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2022-10-26qga: Move HW address getting to a separate functionAlexander Ivanov1-42/+56
In the next patch FreeBSD support for guest-network-get-interfaces will be added. Previously move Linux-specific code of HW address getting to a separate functions and add a dumb function to commands-bsd.c. Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-10-26qga: Add support for user password setting in FreeBSDAlexander Ivanov1-10/+25
Move qmp_guest_set_user_password() from __linux__ condition to (__linux__ || __FreeBSD__) condition. Add command and arguments for password setting in FreeBSD. Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-10-26qga: Add shutdown/halt/reboot support for FreeBSDAlexander Ivanov1-0/+7
Add appropriate shutdown command arguments to qmp_guest_shutdown() for FreeBSD. Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-10-26qga: Add UFS freeze/thaw support for FreeBSDAlexander Ivanov1-158/+150
UFS supports FS freezing through ioctl UFSSUSPEND on /dev/ufssuspend. Frozen FS can be thawed by closing /dev/ufssuspend file descriptior. Use getmntinfo to get a list of mounted FS. Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-10-26qga: Move Linux-specific FS freeze/thaw code to a separate fileAlexander Ivanov1-272/+15
In the next patches we are going to add FreeBSD support for QEMU Guest Agent. In the result, code in commands-posix.c will be too cumbersome. Move Linux-specific FS freeze/thaw code to a separate file commands-linux.c keeping common POSIX code in commands-posix.c. Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-10-26qga: Add initial FreeBSD supportAlexander Ivanov1-0/+8
- Fix device path. - Fix virtio-serial channel initialization. - Make the code buildable in FreeBSD. Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Acked-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Alexander Ivanov <alexander.ivanov@virtuozzo.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-09-20qga: Replace 'blacklist' and 'whitelist' in the guest agent sourcesThomas Huth1-8/+8
Let's use better, more inclusive wording here. Message-Id: <20220727092135.302915-3-thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-07-18qga: treat get-guest-fsinfo as "best effort"John Snow1-1/+9
In some container environments, there may be references to block devices witnessable from a container through /proc/self/mountinfo that reference devices we simply don't have access to in the container, and cannot provide information about. Instead of failing the entire fsinfo command, return stub information for these failed lookups. This allows test-qga to pass under docker tests, which are in turn used by the CentOS VM tests. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220708153503.18864-2-jsnow@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-07-13qga: add command 'guest-get-cpustats'zhenwei pi1-0/+89
A vCPU thread always reaches 100% utilization when: - guest uses idle=poll - disable HLT vm-exit - enable MWAIT Add new guest agent command 'guest-get-cpustats' to get guest CPU statistics, we can know the guest workload and how busy the CPU is. Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: zhenwei pi <pizhenwei@bytedance.com> Message-Id: <20220707005602.696557-3-pizhenwei@bytedance.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2022-05-28qga: make build_fs_mount_list() return a boolMarc-André Lureau1-15/+10
Change build_fs_mount_list() to return bool, in accordance with the guidance under = Rules = in include/qapi/error.h Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Suggested-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220525144140.591926-10-marcandre.lureau@redhat.com>
2022-05-28qga: replace qemu_open_old() with qga_open_cloexec()Marc-André Lureau1-4/+4
qemu_open_old() uses qemu_open_internal() which handles special "/dev/fdset/" path for monitor fd sets, set CLOEXEC, and uses Error reporting (and some O_DIRECT special error casing). The monitor fdset handling is unnecessary for qga, use qga_open_cloexec() instead. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com> Message-Id: <20220525144140.591926-9-marcandre.lureau@redhat.com>
2022-05-28qga: use qga_open_cloexec() for safe_open_or_create()Marc-André Lureau1-4/+3
The function takes care of setting CLOEXEC. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220525144140.591926-7-marcandre.lureau@redhat.com>
2022-05-28qga: flatten safe_open_or_create()Marc-André Lureau1-60/+60
There is a bit too much nesting in the function, this can be simplified a bit to improve readability. This also helps with the following error handling changes. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20220525144140.591926-5-marcandre.lureau@redhat.com>