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qga: conditionalize schema for commands only supported on Windows

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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>
This commit is contained in:
Daniel P. Berrangé 2024-07-12 14:24:49 +01:00 • committed by Konstantin Kostiuk
parent 83a7a1ab9a
commit dedf99f303
2 changed files with 10 additions and 14 deletions
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9
qga/commands-posix.c
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@ -1207,8 +1207,6 @@ GList *ga_command_init_blockedrpcs(GList *blockedrpcs)
blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-fstrim"));
#endif
blockedrpcs = g_list_append(blockedrpcs, g_strdup("guest-get-devices"));
return blockedrpcs;
}
@ -1419,13 +1417,6 @@ GuestOSInfo *qmp_guest_get_osinfo(Error **errp)
return info;
}
GuestDeviceInfoList *qmp_guest_get_devices(Error **errp)
{
error_setg(errp, QERR_UNSUPPORTED);
return NULL;
}
#ifndef HOST_NAME_MAX
# ifdef _POSIX_HOST_NAME_MAX
# define HOST_NAME_MAX _POSIX_HOST_NAME_MAX