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admin: Introduce virAdmServerGetClientLimits

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Enable retrieval of the number of maximum clients connected to all sockets
combined, as well as the number of maximum clients waiting for authentication,
in order to be successfully connected. These are the attributes configurable
through libvirtd.conf, however, it could be handy to not only know values for
these limits, but also the values for the current number of clients
connected and number of clients currently waiting for authentication which are
changing dynamically. This API does both, retrieves the limits as well as the
current dynamic values.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
This commit is contained in:
Erik Skultety
2016-05-19 12:31:53 +02:00
parent 02f674e610
commit 509bd5d8b3
10 changed files with 207 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files
daemon/admin.c
+44
View File
@@ -301,4 +301,48 @@ adminDispatchClientGetInfo(virNetServerPtr server ATTRIBUTE_UNUSED,
virObjectUnref(srv);
return rv;
}
static int
adminDispatchServerGetClientLimits(virNetServerPtr server ATTRIBUTE_UNUSED,
virNetServerClientPtr client,
virNetMessagePtr msg ATTRIBUTE_UNUSED,
virNetMessageErrorPtr rerr ATTRIBUTE_UNUSED,
admin_server_get_client_limits_args *args,
admin_server_get_client_limits_ret *ret)
{
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)))
goto cleanup;
if (adminServerGetClientLimits(srv, &params, &nparams, args->flags) < 0)
goto cleanup;
if (nparams > ADMIN_SERVER_CLIENT_LIMITS_MAX) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Number of client processing parameters %d exceeds "
"max allowed limit: %d"), nparams,
ADMIN_SERVER_CLIENT_LIMITS_MAX);
goto cleanup;
}
if (virTypedParamsSerialize(params, nparams,
(virTypedParameterRemotePtr *) &ret->params.params_val,
&ret->params.params_len, 0) < 0)
goto cleanup;
rv = 0;
cleanup:
if (rv < 0)
virNetMessageSaveError(rerr);
virTypedParamsFree(params, nparams);
virObjectUnref(srv);
return rv;
}
#include "admin_dispatch.h"
daemon/admin_server.c
+41
View File
@@ -311,3 +311,44 @@ int adminClientClose(virNetServerClientPtr client,
virNetServerClientClose(client);
return 0;
}
int
adminServerGetClientLimits(virNetServerPtr srv,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags)
{
int ret = -1;
int maxparams = 0;
virTypedParameterPtr tmpparams = NULL;
virCheckFlags(0, -1);
if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
VIR_SERVER_CLIENTS_MAX,
virNetServerGetMaxClients(srv)) < 0)
goto cleanup;
if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
VIR_SERVER_CLIENTS_CURRENT,
virNetServerGetCurrentClients(srv)) < 0)
goto cleanup;
if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
VIR_SERVER_CLIENTS_UNAUTH_MAX,
virNetServerGetMaxUnauthClients(srv)) < 0)
goto cleanup;
if (virTypedParamsAddUInt(&tmpparams, nparams, &maxparams,
VIR_SERVER_CLIENTS_UNAUTH_CURRENT,
virNetServerGetCurrentUnauthClients(srv)) < 0)
goto cleanup;
*params = tmpparams;
tmpparams = NULL;
ret = 0;
cleanup:
virTypedParamsFree(tmpparams, *nparams);
return ret;
}
daemon/admin_server.h
+5
View File
@@ -62,4 +62,9 @@ int adminClientGetInfo(virNetServerClientPtr client,
int adminClientClose(virNetServerClientPtr client,
unsigned int flags);
int adminServerGetClientLimits(virNetServerPtr srv,
virTypedParameterPtr *params,
int *nparams,
unsigned int flags);
#endif /* __LIBVIRTD_ADMIN_SERVER_H__ */