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/*
* gbp.h : Group Based Policy
*
* Copyright (c) 2018 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <plugins/gbp/gbp_scanner.h>
#include <plugins/gbp/gbp_endpoint.h>
#include <plugins/gbp/gbp_vxlan.h>
/**
* Scanner logger
*/
vlib_log_class_t gs_logger;
/**
* Scanner state
*/
static bool gs_enabled;
#define GBP_SCANNER_DBG(...) \
vlib_log_debug (gs_logger, __VA_ARGS__);
static uword
gbp_scanner (vlib_main_t * vm, vlib_node_runtime_t * rt, vlib_frame_t * f)
{
uword event_type, *event_data = 0;
bool do_scan = 0;
while (1)
{
do_scan = 0;
if (gs_enabled)
{
/* scan every 'inactive threshold' seconds */
vlib_process_wait_for_event_or_clock (vm,
gbp_endpoint_scan_threshold
());
}
else
vlib_process_wait_for_event (vm);
event_type = vlib_process_get_events (vm, &event_data);
vec_reset_length (event_data);
switch (event_type)
{
case ~0:
/* timer expired */
do_scan = 1;
break;
case GBP_ENDPOINT_SCAN_START:
gs_enabled = 1;
break;
case GBP_ENDPOINT_SCAN_STOP:
gs_enabled = 0;
break;
case GBP_ENDPOINT_SCAN_SET_TIME:
break;
default:
ASSERT (0);
}
if (do_scan)
{
GBP_SCANNER_DBG ("start");
gbp_endpoint_scan (vm);
GBP_SCANNER_DBG ("stop");
}
}
return 0;
}
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (gbp_scanner_node) = {
.function = gbp_scanner,
.type = VLIB_NODE_TYPE_PROCESS,
.name = "gbp-scanner",
};
/* *INDENT-ON* */
static clib_error_t *
gbp_scanner_cli (vlib_main_t * vm,
unformat_input_t * input, vlib_cli_command_t * cmd)
{
vlib_cli_output (vm, "GBP-scanner: enabled:%d interval:%f",
gs_enabled, gbp_endpoint_scan_threshold ());
return (NULL);
}
/*?
* Show GBP scanner
*
* @cliexpar
* @cliexstart{show gbp scanner}
* @cliexend
?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (gbp_scanner_cli_node, static) = {
.path = "show gbp scanner",
.short_help = "show gbp scanner",
.function = gbp_scanner_cli,
};
/* *INDENT-ON* */
static clib_error_t *
gbp_scanner_init (vlib_main_t * vm)
{
gs_logger = vlib_log_register_class ("gbp", "scan");
return (NULL);
}
VLIB_INIT_FUNCTION (gbp_scanner_init);
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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