/* * 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, 2); } 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:2", gs_enabled); 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: */