+++ /dev/null
-/*
- * Copyright (C) 2017 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2 only,
- * as published by the Free Software Foundation.
- *
- * 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 "version.h"
-#include "sessiond-config.h"
-#include <assert.h>
-#include "lttng-ust-ctl.h"
-#include <common/defaults.h>
-#include <limits.h>
-#include <errno.h>
-#include <ctype.h>
-#include <common/error.h>
-#include <common/utils.h>
-#include <common/compat/getenv.h>
-
-static
-struct sessiond_config sessiond_config_build_defaults = {
- .quiet = false,
- .verbose = 0,
- .verbose_consumer = 0,
-
- .agent_tcp_port = { .begin = DEFAULT_AGENT_TCP_PORT_RANGE_BEGIN, .end = DEFAULT_AGENT_TCP_PORT_RANGE_END },
- .app_socket_timeout = DEFAULT_APP_SOCKET_RW_TIMEOUT,
-
- .no_kernel = false,
- .background = false,
- .daemonize = false,
- .sig_parent = false,
-
- .tracing_group_name.value = DEFAULT_TRACING_GROUP,
- .kmod_probes_list.value = NULL,
- .kmod_extra_probes_list.value = NULL,
-
- .rundir.value = NULL,
-
- .apps_unix_sock_path.value = NULL,
- .client_unix_sock_path.value = NULL,
- .wait_shm_path.value = NULL,
- .health_unix_sock_path.value = NULL,
- .lttng_ust_clock_plugin.value = NULL,
- .pid_file_path.value = NULL,
- .lock_file_path.value = NULL,
- .agent_port_file_path.value = NULL,
- .load_session_path.value = NULL,
-
- .consumerd32_path.value = NULL,
- .consumerd32_bin_path.value = NULL,
- .consumerd32_lib_dir.value = NULL,
- .consumerd32_err_unix_sock_path.value = NULL,
- .consumerd32_cmd_unix_sock_path.value = NULL,
-
- .consumerd64_path.value = NULL,
- .consumerd64_bin_path.value = NULL,
- .consumerd64_lib_dir.value = NULL,
- .consumerd64_err_unix_sock_path.value = NULL,
- .consumerd64_cmd_unix_sock_path.value = NULL,
-
- .kconsumerd_path.value = NULL,
- .kconsumerd_err_unix_sock_path.value = NULL,
- .kconsumerd_cmd_unix_sock_path.value = NULL,
-};
-
-static
-void config_string_fini(struct config_string *str)
-{
- config_string_set(str, NULL);
-}
-
-static
-void config_string_set_static(struct config_string *config_str,
- const char *value)
-{
- config_string_set(config_str, (char *) value);
- config_str->should_free = false;
-}
-
-/* Only use for dynamically-allocated strings. */
-LTTNG_HIDDEN
-void config_string_set(struct config_string *config_str, char *value)
-{
- assert(config_str);
- if (config_str->should_free) {
- free(config_str->value);
- config_str->should_free = false;
- }
-
- config_str->should_free = !!value;
- config_str->value = value;
-}
-
-LTTNG_HIDDEN
-int sessiond_config_apply_env_config(struct sessiond_config *config)
-{
- int ret = 0;
- const char *env_value;
-
- env_value = getenv(DEFAULT_APP_SOCKET_TIMEOUT_ENV);
- if (env_value) {
- char *endptr;
- long int_val;
-
- errno = 0;
- int_val = strtoul(env_value, &endptr, 0);
- if (errno != 0 || int_val > INT_MAX ||
- (int_val < 0 && int_val != -1)) {
- ERR("Invalid value \"%s\" used for \"%s\" environment variable",
- env_value, DEFAULT_APP_SOCKET_TIMEOUT_ENV);
- ret = -1;
- goto end;
- }
-
- config->app_socket_timeout = int_val;
- }
-
- env_value = lttng_secure_getenv("LTTNG_CONSUMERD32_BIN");
- if (env_value) {
- config_string_set_static(&config->consumerd32_bin_path,
- env_value);
- }
- env_value = lttng_secure_getenv("LTTNG_CONSUMERD64_BIN");
- if (env_value) {
- config_string_set_static(&config->consumerd64_bin_path,
- env_value);
- }
-
- env_value = lttng_secure_getenv("LTTNG_CONSUMERD32_LIBDIR");
- if (env_value) {
- config_string_set_static(&config->consumerd32_lib_dir,
- env_value);
- }
- env_value = lttng_secure_getenv("LTTNG_CONSUMERD64_LIBDIR");
- if (env_value) {
- config_string_set_static(&config->consumerd64_lib_dir,
- env_value);
- }
-
- env_value = lttng_secure_getenv("LTTNG_UST_CLOCK_PLUGIN");
- if (env_value) {
- config_string_set_static(&config->lttng_ust_clock_plugin,
- env_value);
- }
-
- env_value = lttng_secure_getenv(DEFAULT_LTTNG_KMOD_PROBES);
- if (env_value) {
- config_string_set_static(&config->kmod_probes_list,
- env_value);
- }
-
- env_value = lttng_secure_getenv(DEFAULT_LTTNG_EXTRA_KMOD_PROBES);
- if (env_value) {
- config_string_set_static(&config->kmod_extra_probes_list,
- env_value);
- }
-end:
- return ret;
-}
-
-static
-int config_set_paths_root(struct sessiond_config *config)
-{
- int ret = 0;
-
- config_string_set(&config->rundir, strdup(DEFAULT_LTTNG_RUNDIR));
- if (!config->rundir.value) {
- ERR("Failed to set rundir");
- ret = -1;
- goto end;
- }
-
- config_string_set_static(&config->apps_unix_sock_path,
- DEFAULT_GLOBAL_APPS_UNIX_SOCK);
- config_string_set_static(&config->client_unix_sock_path,
- DEFAULT_GLOBAL_CLIENT_UNIX_SOCK);
- config_string_set_static(&config->wait_shm_path,
- DEFAULT_GLOBAL_APPS_WAIT_SHM_PATH);
- config_string_set_static(&config->health_unix_sock_path,
- DEFAULT_GLOBAL_HEALTH_UNIX_SOCK);
-end:
- return ret;
-}
-
-static
-int config_set_paths_non_root(struct sessiond_config *config)
-{
- int ret = 0;
- const char *home_path = utils_get_home_dir();
- char *str;
-
- if (home_path == NULL) {
- ERR("Can't get HOME directory for sockets creation.");
- ret = -1;
- goto end;
- }
-
- /*
- * Create rundir from home path. This will create something like
- * $HOME/.lttng
- */
- ret = asprintf(&str, DEFAULT_LTTNG_HOME_RUNDIR, home_path);
- if (ret < 0) {
- ERR("Failed to set rundir");
- goto end;
- }
- config_string_set(&config->rundir, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_HOME_APPS_UNIX_SOCK, home_path);
- if (ret < 0) {
- ERR("Failed to set default home apps unix socket path");
- goto end;
- }
- config_string_set(&config->apps_unix_sock_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_HOME_CLIENT_UNIX_SOCK, home_path);
- if (ret < 0) {
- ERR("Failed to set default home client unix socket path");
- goto end;
- }
- config_string_set(&config->client_unix_sock_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_HOME_APPS_WAIT_SHM_PATH, getuid());
- if (ret < 0) {
- ERR("Failed to set default home apps wait shm path");
- goto end;
- }
- config_string_set(&config->wait_shm_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_HOME_HEALTH_UNIX_SOCK, home_path);
- if (ret < 0) {
- ERR("Failed to set default home health UNIX socket path");
- goto end;
- }
- config_string_set(&config->health_unix_sock_path, str);
- str = NULL;
-
- ret = 0;
-end:
- return ret;
-}
-
-LTTNG_HIDDEN
-int sessiond_config_init(struct sessiond_config *config)
-{
- int ret;
- bool is_root = (getuid() == 0);
- char *str;
-
- assert(config);
- memcpy(config, &sessiond_config_build_defaults, sizeof(*config));
-
- if (is_root) {
- ret = config_set_paths_root(config);
- } else {
- ret = config_set_paths_non_root(config);
- }
- if (ret < 0) {
- goto error;
- }
-
- /* 32 bits consumerd path setup */
- ret = asprintf(&str, DEFAULT_USTCONSUMERD32_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set 32-bit consumer path");
- goto error;
- }
- config_string_set(&config->consumerd32_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_USTCONSUMERD32_ERR_SOCK_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set 32-bit consumer error socket path");
- goto error;
- }
- config_string_set(&config->consumerd32_err_unix_sock_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_USTCONSUMERD32_CMD_SOCK_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set 32-bit consumer command socket path");
- goto error;
- }
- config_string_set(&config->consumerd32_cmd_unix_sock_path, str);
- str = NULL;
-
- /* 64 bits consumerd path setup */
- ret = asprintf(&str, DEFAULT_USTCONSUMERD64_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set 64-bit consumer path");
- goto error;
- }
- config_string_set(&config->consumerd64_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_USTCONSUMERD64_ERR_SOCK_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set 64-bit consumer error socket path");
- goto error;
- }
- config_string_set(&config->consumerd64_err_unix_sock_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_USTCONSUMERD64_CMD_SOCK_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set 64-bit consumer command socket path");
- goto error;
- }
- config_string_set(&config->consumerd64_cmd_unix_sock_path, str);
- str = NULL;
-
- /* kconsumerd consumerd path setup */
- ret = asprintf(&str, DEFAULT_KCONSUMERD_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set kernel consumer path");
- goto error;
- }
- config_string_set(&config->kconsumerd_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_KCONSUMERD_ERR_SOCK_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set kernel consumer error socket path");
- goto error;
- }
- config_string_set(&config->kconsumerd_err_unix_sock_path, str);
- str = NULL;
-
- ret = asprintf(&str, DEFAULT_KCONSUMERD_CMD_SOCK_PATH,
- config->rundir.value);
- if (ret < 0) {
- ERR("Failed to set kernel consumer command socket path");
- goto error;
- }
- config_string_set(&config->kconsumerd_cmd_unix_sock_path, str);
- str = NULL;
-
- ret = asprintf(&str, "%s/%s", config->rundir.value,
- DEFAULT_LTTNG_SESSIOND_PIDFILE);
- if (ret < 0) {
- ERR("Failed to set PID file path");
- goto error;
- }
- config_string_set(&config->pid_file_path, str);
- str = NULL;
-
- ret = asprintf(&str, "%s/%s", config->rundir.value,
- DEFAULT_LTTNG_SESSIOND_LOCKFILE);
- if (ret < 0) {
- ERR("Failed to set lock file path");
- goto error;
- }
- config_string_set(&config->lock_file_path, str);
- str = NULL;
-
- ret = asprintf(&str, "%s/%s", config->rundir.value,
- DEFAULT_LTTNG_SESSIOND_AGENTPORT_FILE);
- if (ret < 0) {
- ERR("Failed to set agent port file path");
- goto error;
- }
- config_string_set(&config->agent_port_file_path, str);
- str = NULL;
-
- /*
- * Allow INSTALL_BIN_PATH to be used as a target path for the
- * native architecture size consumer if CONFIG_CONSUMER*_PATH
- * has not been defined.
- */
-#if (CAA_BITS_PER_LONG == 32)
- config_string_set_static(&config->consumerd32_bin_path,
- INSTALL_BIN_PATH "/" DEFAULT_CONSUMERD_FILE);
- config_string_set_static(&config->consumerd32_lib_dir,
- INSTALL_LIB_PATH);
-#elif (CAA_BITS_PER_LONG == 64)
- config_string_set_static(&config->consumerd64_bin_path,
- INSTALL_BIN_PATH "/" DEFAULT_CONSUMERD_FILE);
- config_string_set_static(&config->consumerd64_lib_dir,
- INSTALL_LIB_PATH);
-#else
-#error "Unknown bitness"
-#endif
- ret = 0;
- return ret;
-error:
- sessiond_config_fini(config);
- return ret;
-}
-
-LTTNG_HIDDEN
-void sessiond_config_fini(struct sessiond_config *config)
-{
- config_string_fini(&config->tracing_group_name);
- config_string_fini(&config->kmod_probes_list);
- config_string_fini(&config->kmod_extra_probes_list);
- config_string_fini(&config->rundir);
- config_string_fini(&config->apps_unix_sock_path);
- config_string_fini(&config->client_unix_sock_path);
- config_string_fini(&config->wait_shm_path);
- config_string_fini(&config->health_unix_sock_path);
- config_string_fini(&config->lttng_ust_clock_plugin);
- config_string_fini(&config->pid_file_path);
- config_string_fini(&config->lock_file_path);
- config_string_fini(&config->load_session_path);
- config_string_fini(&config->agent_port_file_path);
- config_string_fini(&config->consumerd32_path);
- config_string_fini(&config->consumerd32_bin_path);
- config_string_fini(&config->consumerd32_lib_dir);
- config_string_fini(&config->consumerd32_err_unix_sock_path);
- config_string_fini(&config->consumerd32_cmd_unix_sock_path);
- config_string_fini(&config->consumerd64_path);
- config_string_fini(&config->consumerd64_bin_path);
- config_string_fini(&config->consumerd64_lib_dir);
- config_string_fini(&config->consumerd64_err_unix_sock_path);
- config_string_fini(&config->consumerd64_cmd_unix_sock_path);
- config_string_fini(&config->kconsumerd_path);
- config_string_fini(&config->kconsumerd_err_unix_sock_path);
- config_string_fini(&config->kconsumerd_cmd_unix_sock_path);
-}
-
-static
-int resolve_path(struct config_string *path)
-{
- int ret = 0;
- char *absolute_path;
-
- if (!path->value || path->value[0] == '/') {
- goto end;
- }
-
- absolute_path = utils_expand_path(path->value);
- if (!absolute_path) {
- ret = -1;
- goto end;
- }
-
- config_string_set(path, absolute_path);
-end:
- return ret;
-}
-
-#define RESOLVE_CHECK(path_config_str) \
- if (resolve_path(path_config_str)) \
- return -1
-
-LTTNG_HIDDEN
-int sessiond_config_resolve_paths(struct sessiond_config *config)
-{
- RESOLVE_CHECK(&config->apps_unix_sock_path);
- RESOLVE_CHECK(&config->client_unix_sock_path);
- RESOLVE_CHECK(&config->wait_shm_path);
- RESOLVE_CHECK(&config->health_unix_sock_path);
- RESOLVE_CHECK(&config->lttng_ust_clock_plugin);
- RESOLVE_CHECK(&config->pid_file_path);
- RESOLVE_CHECK(&config->lock_file_path);
- RESOLVE_CHECK(&config->load_session_path);
- RESOLVE_CHECK(&config->agent_port_file_path);
- RESOLVE_CHECK(&config->consumerd32_path);
- RESOLVE_CHECK(&config->consumerd32_bin_path);
- RESOLVE_CHECK(&config->consumerd32_lib_dir);
- RESOLVE_CHECK(&config->consumerd32_err_unix_sock_path);
- RESOLVE_CHECK(&config->consumerd32_cmd_unix_sock_path);
- RESOLVE_CHECK(&config->consumerd64_path);
- RESOLVE_CHECK(&config->consumerd64_bin_path);
- RESOLVE_CHECK(&config->consumerd64_lib_dir);
- RESOLVE_CHECK(&config->consumerd64_err_unix_sock_path);
- RESOLVE_CHECK(&config->consumerd64_cmd_unix_sock_path);
- RESOLVE_CHECK(&config->kconsumerd_path);
- RESOLVE_CHECK(&config->kconsumerd_err_unix_sock_path);
- RESOLVE_CHECK(&config->kconsumerd_cmd_unix_sock_path);
- return 0;
-}
-
-LTTNG_HIDDEN
-void sessiond_config_log(struct sessiond_config *config)
-{
- DBG_NO_LOC("[sessiond configuration]");
- DBG_NO_LOC("\tversion %s", VERSION);
- if (GIT_VERSION[0] != '\0') {
- DBG_NO_LOC("\tgit version %s", GIT_VERSION);
- }
- if (EXTRA_VERSION_NAME[0] != '\0') {
- DBG_NO_LOC("\textra version name %s", EXTRA_VERSION_NAME);
- }
- if (EXTRA_VERSION_DESCRIPTION[0] != '\0') {
- DBG_NO_LOC("\textra version description:\n\t%s", EXTRA_VERSION_DESCRIPTION);
- }
- DBG_NO_LOC("\tverbose: %i", config->verbose);
- DBG_NO_LOC("\tverbose consumer: %i", config->verbose_consumer);
- DBG_NO_LOC("\tquiet mode: %s", config->quiet ? "True" : "False");
- if (config->agent_tcp_port.begin == config->agent_tcp_port.end) {
- DBG_NO_LOC("\tagent_tcp_port: %i", config->agent_tcp_port.begin);
- } else {
- DBG_NO_LOC("\tagent_tcp_port: [%i, %i]",
- config->agent_tcp_port.begin,
- config->agent_tcp_port.end);
- }
- DBG_NO_LOC("\tapplication socket timeout: %i", config->app_socket_timeout);
- DBG_NO_LOC("\tno-kernel: %s", config->no_kernel ? "True" : "False");
- DBG_NO_LOC("\tbackground: %s", config->background ? "True" : "False");
- DBG_NO_LOC("\tdaemonize: %s", config->daemonize ? "True" : "False");
- DBG_NO_LOC("\tsignal parent on start: %s", config->sig_parent ? "True" : "False");
- DBG_NO_LOC("\ttracing group name: %s", config->tracing_group_name.value ? : "Unknown");
- DBG_NO_LOC("\tkmod_probe_list: %s", config->kmod_probes_list.value ? : "None");
- DBG_NO_LOC("\tkmod_extra_probe_list: %s", config->kmod_extra_probes_list.value ? : "None");
- DBG_NO_LOC("\trundir: %s", config->rundir.value ? : "Unknown");
- DBG_NO_LOC("\tapplication socket path: %s", config->apps_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tclient socket path: %s", config->client_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\twait shm path: %s", config->wait_shm_path.value ? : "Unknown");
- DBG_NO_LOC("\thealth socket path: %s", config->health_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tLTTNG_UST_CLOCK_PLUGIN: %s", config->lttng_ust_clock_plugin.value ? : "None");
- DBG_NO_LOC("\tpid file path: %s", config->pid_file_path.value ? : "Unknown");
- DBG_NO_LOC("\tlock file path: %s", config->lock_file_path.value ? : "Unknown");
- DBG_NO_LOC("\tsession load path: %s", config->load_session_path.value ? : "None");
- DBG_NO_LOC("\tagent port file path: %s", config->agent_port_file_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd32 path: %s", config->consumerd32_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd32 bin path: %s", config->consumerd32_bin_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd32 lib dir: %s", config->consumerd32_lib_dir.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd32 err unix sock path:%s", config->consumerd32_err_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd32 cmd unix sock path:%s", config->consumerd32_cmd_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd64 path: %s", config->consumerd64_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd64 bin path: %s", config->consumerd64_bin_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd64 lib dir: %s", config->consumerd64_lib_dir.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd64 err unix sock path:%s", config->consumerd64_err_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tconsumerd64 cmd unix sock path:%s", config->consumerd64_cmd_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tkconsumerd path: %s", config->kconsumerd_path.value ? : "Unknown");
- DBG_NO_LOC("\tkconsumerd err unix sock path: %s", config->kconsumerd_err_unix_sock_path.value ? : "Unknown");
- DBG_NO_LOC("\tkconsumerd cmd unix sock path: %s", config->kconsumerd_cmd_unix_sock_path.value ? : "Unknown");
-}
projects / lttng-tools.git / blobdiff