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admin: Introduce virAdmServerSetClientLimits

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Opposite operation to virAdmServerGetClientLimits. Understandably though,
setting values for current number of clients connected or still waiting
for authentication does not make sense, since changes to these values are event
dependent, i.e. a client connects - counter is increased. Thus only the limits
to maximum clients connected and waiting for authentication can be set. Should
a request for other controls to be set arrive (provided such a setting will
be first introduced to the config), the set of configuration controls can be
later expanded (thanks to typed params). This patch also introduces a
constraint that the maximum number of clients waiting for authentication has to
be less than the overall maximum number of clients connected and any attempt to
violate this constraint will be denied.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Erik Skultety
2016-04-04 14:24:52 +02:00
parent 509bd5d8b3
commit 8b1f04693d
12 changed files with 223 additions and 1 deletions
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38
daemon/admin.c
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@@ -345,4 +345,42 @@ adminDispatchServerGetClientLimits(virNetServerPtr server ATTRIBUTE_UNUSED,
virObjectUnref(srv);
return rv;
}
static int
adminDispatchServerSetClientLimits(virNetServerPtr server ATTRIBUTE_UNUSED,
virNetServerClientPtr client,
virNetMessagePtr msg ATTRIBUTE_UNUSED,
virNetMessageErrorPtr rerr ATTRIBUTE_UNUSED,
admin_server_set_client_limits_args *args)
{
int rv = -1;
virNetServerPtr srv = NULL;
virTypedParameterPtr params = NULL;
int nparams = 0;
struct daemonAdmClientPrivate *priv =
virNetServerClientGetPrivateData(client);
if (!(srv = virNetDaemonGetServer(priv->dmn, args->srv.name))) {
virReportError(VIR_ERR_NO_SERVER,
_("no server with matching name '%s' found"),
args->srv.name);
goto cleanup;
}
if (virTypedParamsDeserialize((virTypedParameterRemotePtr) args->params.params_val,
args->params.params_len,
ADMIN_SERVER_CLIENT_LIMITS_MAX, &params, &nparams) < 0)
goto cleanup;
if (adminServerSetClientLimits(srv, params, nparams, args->flags) < 0)
goto cleanup;
rv = 0;
cleanup:
if (rv < 0)
virNetMessageSaveError(rerr);
virTypedParamsFree(params, nparams);
virObjectUnref(srv);
return rv;
}
#include "admin_dispatch.h"