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qga: centralize logic for disabling/enabling commands

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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>
This commit is contained in:
Daniel P. Berrangé 2024-07-12 14:24:59 +01:00 • committed by Konstantin Kostiuk
parent f8bf2347ed
commit 2e3b166c41
4 changed files with 70 additions and 84 deletions
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6
qga/commands-win32.c
View file

@ -1958,12 +1958,6 @@ done:
g_free(rawpasswddata);
}
/* add unsupported commands to the list of blocked RPCs */
GList *ga_command_init_blockedrpcs(GList *blockedrpcs)
{
return blockedrpcs;
}
/* register init/cleanup routines for stateful command groups */
void ga_command_state_init(GAState *s, GACommandState *cs)
{