diff options
Diffstat (limited to 'addons/ot/src/cli.c')
| -rw-r--r-- | addons/ot/src/cli.c | 397 |
1 files changed, 397 insertions, 0 deletions
diff --git a/addons/ot/src/cli.c b/addons/ot/src/cli.c new file mode 100644 index 0000000..9132fe9 --- /dev/null +++ b/addons/ot/src/cli.c @@ -0,0 +1,397 @@ +/*** + * Copyright 2020 HAProxy Technologies + * + * This file is part of the HAProxy OpenTracing filter. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ +#include "include.h" + + +/*** + * NAME + * flt_ot_cli_set_msg - + * + * ARGUMENTS + * appctx - + * err - + * msg - + * cli_state - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * This function does not return a value. + */ +static void cmn_cli_set_msg(struct appctx *appctx, char *err, char *msg, int cli_state) +{ + struct cli_print_ctx *ctx = applet_reserve_svcctx(appctx, sizeof(*ctx)); + + FLT_OT_FUNC("%p, %p, %p, %d", appctx, err, msg, cli_state); + + if ((appctx == NULL) || ((err == NULL) && (msg == NULL))) + FLT_OT_RETURN(); + + ctx->err = (err == NULL) ? msg : err; + appctx->st0 = (ctx->err == NULL) ? CLI_ST_PROMPT : cli_state; + + FLT_OT_DBG(1, "err(%d): \"%s\"", appctx->st0, ctx->err); + + FLT_OT_RETURN(); +} + + +#ifdef DEBUG_OT + +/*** + * NAME + * flt_ot_cli_parse_debug - + * + * ARGUMENTS + * args - + * payload - + * appctx - + * private - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * - + */ +static int flt_ot_cli_parse_debug(char **args, char *payload, struct appctx *appctx, void *private) +{ + char *err = NULL, *msg = NULL; + uint8_t value; + int retval = 0; + + FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private); + + FLT_OT_ARGS_DUMP(); + + if (FLT_OT_ARG_ISVALID(2)) { + value = flt_ot_strtoll(args[2], 0, 255, &err); + if (err == NULL) { + _HA_ATOMIC_STORE(&(flt_ot_debug.level), value); + + (void)memprintf(&msg, FLT_OT_CLI_CMD " : debug level set to %hhu", value); + } else { + retval = 1; + } + } else { + value = _HA_ATOMIC_LOAD(&(flt_ot_debug.level)); + + (void)memprintf(&msg, FLT_OT_CLI_CMD " : current debug level is %hhu", value); + } + + cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_FREE); + + FLT_OT_RETURN_INT(retval); +} + +#endif /* DEBUG_OT */ + + +/*** + * NAME + * flt_ot_cli_parse_disabled - + * + * ARGUMENTS + * args - + * payload - + * appctx - + * private - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * - + */ +static int flt_ot_cli_parse_disabled(char **args, char *payload, struct appctx *appctx, void *private) +{ + char *msg = NULL; + bool value = (uintptr_t)private; + int retval = 0; + + FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private); + + FLT_OT_ARGS_DUMP(); + + FLT_OT_PROXIES_LIST_START() { + _HA_ATOMIC_STORE(&(conf->tracer->flag_disabled), value); + + (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : filter %sabled", FLT_OT_CLI_MSG_CAT(msg), value ? "dis" : "en"); + } FLT_OT_PROXIES_LIST_END(); + + cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_FREE); + + FLT_OT_RETURN_INT(retval); +} + + +/*** + * NAME + * flt_ot_cli_parse_option - + * + * ARGUMENTS + * args - + * payload - + * appctx - + * private - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * - + */ +static int flt_ot_cli_parse_option(char **args, char *payload, struct appctx *appctx, void *private) +{ + char *msg = NULL; + bool value = (uintptr_t)private; + int retval = 0; + + FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private); + + FLT_OT_ARGS_DUMP(); + + FLT_OT_PROXIES_LIST_START() { + _HA_ATOMIC_STORE(&(conf->tracer->flag_harderr), value); + + (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : filter set %s-errors", FLT_OT_CLI_MSG_CAT(msg), value ? "hard" : "soft"); + } FLT_OT_PROXIES_LIST_END(); + + cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_FREE); + + FLT_OT_RETURN_INT(retval); +} + + +/*** + * NAME + * flt_ot_cli_parse_logging - + * + * ARGUMENTS + * args - + * payload - + * appctx - + * private - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * - + */ +static int flt_ot_cli_parse_logging(char **args, char *payload, struct appctx *appctx, void *private) +{ + char *err = NULL, *msg = NULL; + uint8_t value; + int retval = 0; + + FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private); + + FLT_OT_ARGS_DUMP(); + + if (FLT_OT_ARG_ISVALID(2)) { + if (strcasecmp(args[2], FLT_OT_CLI_LOGGING_OFF) == 0) { + value = FLT_OT_LOGGING_OFF; + } + else if (strcasecmp(args[2], FLT_OT_CLI_LOGGING_ON) == 0) { + value = FLT_OT_LOGGING_ON; + } + else if (strcasecmp(args[2], FLT_OT_CLI_LOGGING_NOLOGNORM) == 0) { + value = FLT_OT_LOGGING_ON | FLT_OT_LOGGING_NOLOGNORM; + } + else { + (void)memprintf(&err, "'%s' : invalid value, use <" FLT_OT_CLI_LOGGING_OFF " | " FLT_OT_CLI_LOGGING_ON " | " FLT_OT_CLI_LOGGING_NOLOGNORM ">", args[2]); + + retval = 1; + } + + if (retval == 0) { + FLT_OT_PROXIES_LIST_START() { + _HA_ATOMIC_STORE(&(conf->tracer->logging), value); + + (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : logging is %s", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_CLI_LOGGING_STATE(value)); + } FLT_OT_PROXIES_LIST_END(); + } + } else { + FLT_OT_PROXIES_LIST_START() { + value = _HA_ATOMIC_LOAD(&(conf->tracer->logging)); + + (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : logging is currently %s", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_CLI_LOGGING_STATE(value)); + } FLT_OT_PROXIES_LIST_END(); + } + + cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_FREE); + + FLT_OT_RETURN_INT(retval); +} + + +/*** + * NAME + * flt_ot_cli_parse_rate - + * + * ARGUMENTS + * args - + * payload - + * appctx - + * private - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * - + */ +static int flt_ot_cli_parse_rate(char **args, char *payload, struct appctx *appctx, void *private) +{ + char *err = NULL, *msg = NULL; + uint32_t value; + int retval = 0; + + FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private); + + FLT_OT_ARGS_DUMP(); + + if (FLT_OT_ARG_ISVALID(2)) { + value = FLT_OT_FLOAT_U32(flt_ot_strtod(args[2], 0.0, FLT_OT_RATE_LIMIT_MAX, &err), FLT_OT_RATE_LIMIT_MAX); + if (err == NULL) { + FLT_OT_PROXIES_LIST_START() { + _HA_ATOMIC_STORE(&(conf->tracer->rate_limit), value); + + (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : rate limit set to %.2f", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_U32_FLOAT(value, FLT_OT_RATE_LIMIT_MAX)); + } FLT_OT_PROXIES_LIST_END(); + } else { + retval = 1; + } + } else { + FLT_OT_PROXIES_LIST_START() { + value = _HA_ATOMIC_LOAD(&(conf->tracer->rate_limit)); + + (void)memprintf(&msg, "%s%s" FLT_OT_CLI_CMD " : current rate limit is %.2f", FLT_OT_CLI_MSG_CAT(msg), FLT_OT_U32_FLOAT(value, FLT_OT_RATE_LIMIT_MAX)); + } FLT_OT_PROXIES_LIST_END(); + } + + cmn_cli_set_msg(appctx, err, msg, CLI_ST_PRINT_FREE); + + FLT_OT_RETURN_INT(retval); +} + + +/*** + * NAME + * flt_ot_cli_parse_status - + * + * ARGUMENTS + * args - + * payload - + * appctx - + * private - + * + * DESCRIPTION + * - + * + * RETURN VALUE + * - + */ +static int flt_ot_cli_parse_status(char **args, char *payload, struct appctx *appctx, void *private) +{ + const char *nl = ""; + char *msg = NULL; + int retval = 0; + + FLT_OT_FUNC("%p, \"%s\", %p, %p", args, payload, appctx, private); + + FLT_OT_ARGS_DUMP(); + flt_ot_filters_dump(); + + (void)memprintf(&msg, " " FLT_OT_OPT_NAME " filter status\n" FLT_OT_STR_DASH_78); +#ifdef DEBUG_OT + (void)memprintf(&msg, "%s\n debug level: 0x%02hhx\n", msg, flt_ot_debug.level); +#endif + + FLT_OT_PROXIES_LIST_START() { + (void)memprintf(&msg, "%s\n%s filter %s\n", msg, nl, conf->id); + (void)memprintf(&msg, "%s configuration: %s\n", msg, conf->cfg_file); + (void)memprintf(&msg, "%s disable count: %" PRIu64 " %" PRIu64 "\n\n", msg, conf->cnt.disabled[0], conf->cnt.disabled[1]); + (void)memprintf(&msg, "%s tracer %s\n", msg, conf->tracer->id); + (void)memprintf(&msg, "%s configuration: %s\n", msg, conf->tracer->config); + (void)memprintf(&msg, "%s plugin: %s\n", msg, conf->tracer->plugin); + (void)memprintf(&msg, "%s rate limit: %.2f %%\n", msg, FLT_OT_U32_FLOAT(conf->tracer->rate_limit, FLT_OT_RATE_LIMIT_MAX)); + (void)memprintf(&msg, "%s hard errors: %s\n", msg, FLT_OT_STR_FLAG_YN(conf->tracer->flag_harderr)); + (void)memprintf(&msg, "%s disabled: %s\n", msg, FLT_OT_STR_FLAG_YN(conf->tracer->flag_disabled)); + (void)memprintf(&msg, "%s logging: %s\n", msg, FLT_OT_CLI_LOGGING_STATE(conf->tracer->logging)); + (void)memprintf(&msg, "%s analyzers: %08x", msg, conf->tracer->analyzers); + + nl = "\n"; + } FLT_OT_PROXIES_LIST_END(); + + cmn_cli_set_msg(appctx, NULL, msg, CLI_ST_PRINT_FREE); + + FLT_OT_RETURN_INT(retval); +} + + +static struct cli_kw_list cli_kws = { { }, { +#ifdef DEBUG_OT + { { FLT_OT_CLI_CMD, "debug", NULL }, FLT_OT_CLI_CMD " debug [level] : set the OT filter debug level (default: get current debug level)", flt_ot_cli_parse_debug, NULL, NULL, NULL, 0 }, +#endif + { { FLT_OT_CLI_CMD, "disable", NULL }, FLT_OT_CLI_CMD " disable : disable the OT filter", flt_ot_cli_parse_disabled, NULL, NULL, (void *)1, 0 }, + { { FLT_OT_CLI_CMD, "enable", NULL }, FLT_OT_CLI_CMD " enable : enable the OT filter", flt_ot_cli_parse_disabled, NULL, NULL, (void *)0, 0 }, + { { FLT_OT_CLI_CMD, "soft-errors", NULL }, FLT_OT_CLI_CMD " soft-errors : turning off hard-errors mode", flt_ot_cli_parse_option, NULL, NULL, (void *)0, 0 }, + { { FLT_OT_CLI_CMD, "hard-errors", NULL }, FLT_OT_CLI_CMD " hard-errors : enabling hard-errors mode", flt_ot_cli_parse_option, NULL, NULL, (void *)1, 0 }, + { { FLT_OT_CLI_CMD, "logging", NULL }, FLT_OT_CLI_CMD " logging [state] : set logging state (default: get current logging state)", flt_ot_cli_parse_logging, NULL, NULL, NULL, 0 }, + { { FLT_OT_CLI_CMD, "rate", NULL }, FLT_OT_CLI_CMD " rate [value] : set the rate limit (default: get current rate value)", flt_ot_cli_parse_rate, NULL, NULL, NULL, 0 }, + { { FLT_OT_CLI_CMD, "status", NULL }, FLT_OT_CLI_CMD " status : show the OT filter status", flt_ot_cli_parse_status, NULL, NULL, NULL, 0 }, + { /* END */ } +}}; + + +/*** + * NAME + * flt_ot_cli_init - + * + * ARGUMENTS + * This function takes no arguments. + * + * DESCRIPTION + * - + * + * RETURN VALUE + * This function does not return a value. + */ +void flt_ot_cli_init(void) +{ + FLT_OT_FUNC(""); + + /* Register CLI keywords. */ + cli_register_kw(&cli_kws); + + FLT_OT_RETURN(); +} + +/* + * Local variables: + * c-indent-level: 8 + * c-basic-offset: 8 + * End: + * + * vi: noexpandtab shiftwidth=8 tabstop=8 + */ |