Currently we rely on fsfreeze/thaw commands disabling/enabling logging then having other commands check whether logging is disabled to avoid executing if they aren't safe for running while a filesystem is frozen. Instead, have an explicit whitelist of fsfreeze-safe commands, and consolidate logging and command enablement/disablement into a pair of helper functions: ga_set_frozen()/ga_unset_frozen() Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
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* QEMU Guest Agent core declarations
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*
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* Copyright IBM Corp. 2011
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*
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* Authors:
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* Adam Litke <aglitke@linux.vnet.ibm.com>
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* Michael Roth <mdroth@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qapi/qmp-core.h"
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#include "qemu-common.h"
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#define QGA_VERSION "1.0"
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#define QGA_READ_COUNT_DEFAULT 4096
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typedef struct GAState GAState;
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typedef struct GACommandState GACommandState;
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extern GAState *ga_state;
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void ga_command_state_init(GAState *s, GACommandState *cs);
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void ga_command_state_add(GACommandState *cs,
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void (*init)(void),
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void (*cleanup)(void));
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void ga_command_state_init_all(GACommandState *cs);
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void ga_command_state_cleanup_all(GACommandState *cs);
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GACommandState *ga_command_state_new(void);
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bool ga_logging_enabled(GAState *s);
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void ga_disable_logging(GAState *s);
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void ga_enable_logging(GAState *s);
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void slog(const gchar *fmt, ...);
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void ga_set_response_delimited(GAState *s);
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bool ga_is_frozen(GAState *s);
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void ga_set_frozen(GAState *s);
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void ga_unset_frozen(GAState *s);
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