#include <ctype.h>
#include <stdio.h>
+#include <string.h>
#include "../command.h"
#include "../loglevel.h"
OPT_CONDITION,
OPT_ACTION,
OPT_ID,
- OPT_USER_ID,
+ OPT_OWNER_UID,
OPT_RATE_POLICY,
OPT_NAME,
OPT_FILTER,
- OPT_EXCLUDE_NAMES,
+ OPT_EXCLUDE_NAME,
OPT_EVENT_NAME,
OPT_LOG_LEVEL,
static const struct argpar_opt_descr event_rule_opt_descrs[] = {
{ OPT_FILTER, 'f', "filter", true },
{ OPT_NAME, 'n', "name", true },
- { OPT_EXCLUDE_NAMES, 'x', "exclude-names", true },
+ { OPT_EXCLUDE_NAME, 'x', "exclude-name", true },
{ OPT_LOG_LEVEL, 'l', "log-level", true },
{ OPT_EVENT_NAME, 'E', "event-name", true },
if (strcmp(arg, "tracepoint") == 0 || strcmp(arg, "logging") == 0) {
*dest = LTTNG_EVENT_RULE_TYPE_TRACEPOINT;
- } else if (strcmp (arg, "kprobe") == 0 || strcmp(arg, "kernel-probe") == 0) {
+ } else if (strcmp(arg, "kprobe") == 0 ||
+ strcmp(arg, "kernel-probe") == 0) {
*dest = LTTNG_EVENT_RULE_TYPE_KERNEL_PROBE;
- } else if (strcmp (arg, "uprobe") == 0 || strcmp(arg, "userspace-probe") == 0) {
+ } else if (strcmp(arg, "uprobe") == 0 ||
+ strcmp(arg, "userspace-probe") == 0) {
*dest = LTTNG_EVENT_RULE_TYPE_USERSPACE_PROBE;
- } else if (strcmp (arg, "function") == 0) {
+ } else if (strcmp(arg, "function") == 0) {
*dest = LTTNG_EVENT_RULE_TYPE_KERNEL_FUNCTION;
- } else if (strcmp (arg, "syscall") == 0) {
+ } else if (strncmp(arg, "syscall", strlen("syscall")) == 0) {
+ /*
+ * Matches the following:
+ * - syscall
+ * - syscall:entry
+ * - syscall:exit
+ * - syscall:entry+exit
+ * - syscall:*
+ *
+ * Validation for the right side is left to further usage sites.
+ */
*dest = LTTNG_EVENT_RULE_TYPE_SYSCALL;
} else {
ERR("Invalid `--type` value: %s", arg);
return ret;
}
+static bool parse_syscall_emission_site_from_type(const char *str,
+ enum lttng_event_rule_syscall_emission_site_type *type)
+{
+ bool ret = false;
+ if (strcmp(str, "syscall") == 0 ||
+ strcmp(str, "syscall:entry+exit") == 0) {
+ *type = LTTNG_EVENT_RULE_SYSCALL_EMISSION_SITE_ENTRY_EXIT;
+ } else if (strcmp(str, "syscall:entry") == 0) {
+ *type = LTTNG_EVENT_RULE_SYSCALL_EMISSION_SITE_ENTRY;
+ } else if (strcmp(str, "syscall:exit") == 0) {
+ *type = LTTNG_EVENT_RULE_SYSCALL_EMISSION_SITE_EXIT;
+ } else {
+ goto error;
+ }
+
+ ret = true;
+
+error:
+ return ret;
+}
+
/* This is defined in enable_events.c. */
LTTNG_HIDDEN
-int create_exclusion_list_and_validate(const char *event_name,
- const char *exclusions_arg,
- char ***exclusion_list);
+int validate_exclusion_list(
+ const char *event_name, const char *const *exclusions);
/*
* Parse `str` as a log level in domain `domain_type`.
struct filter_parser_ctx *parser_ctx = NULL;
struct lttng_log_level_rule *log_level_rule = NULL;
+ /* Event rule type option */
+ char *event_rule_type_str = NULL;
+
/* Tracepoint and syscall options. */
char *name = NULL;
- char *exclude_names = NULL;
- char **exclusion_list = NULL;
+ /* Array of strings. */
+ struct lttng_dynamic_pointer_array exclude_names;
/* For userspace / kernel probe and function. */
char *location = NULL;
lttng_dynamic_pointer_array_init(&res.capture_descriptors,
destroy_event_expr);
+
+ lttng_dynamic_pointer_array_init(&exclude_names, free);
+
state = argpar_state_create(*argc, *argv, event_rule_opt_descrs);
if (!state) {
ERR("Failed to allocate an argpar state.");
goto error;
}
+ /* Save the string for later use. */
+ if (!assign_string(&event_rule_type_str,
+ item_opt->arg,
+ "--type/-t")) {
+ goto error;
+ }
+
break;
case OPT_LOCATION:
if (!assign_string(&location,
}
break;
- case OPT_EXCLUDE_NAMES:
- if (!assign_string(&exclude_names,
- item_opt->arg,
- "--exclude-names/-x")) {
+ case OPT_EXCLUDE_NAME:
+ {
+ int ret;
+
+ ret = lttng_dynamic_pointer_array_add_pointer(
+ &exclude_names,
+ strdup(item_opt->arg));
+ if (ret != 0) {
+ ERR("Failed to add pointer to dynamic pointer array.");
goto error;
}
break;
+ }
case OPT_LOG_LEVEL:
if (!assign_string(&log_level_str,
item_opt->arg, "--log-level/-l")) {
goto error;
}
- if (exclude_names) {
- ERR("Can't use --exclude-names/-x with %s event rules.",
+ if (lttng_dynamic_pointer_array_get_count(&exclude_names) > 0) {
+ ERR("Can't use --exclude-name/-x with %s event rules.",
lttng_event_rule_type_str(
event_rule_type));
goto error;
}
}
- /* If --exclude/-x was passed, split it into an exclusion list. */
- if (exclude_names) {
+ /* If --exclude-name/-x was passed, split it into an exclusion list. */
+ if (lttng_dynamic_pointer_array_get_count(&exclude_names) > 0) {
if (domain_type != LTTNG_DOMAIN_UST) {
ERR("Event name exclusions are not yet implemented for %s event rules.",
get_domain_str(domain_type));
goto error;
}
- if (create_exclusion_list_and_validate(name,
- exclude_names, &exclusion_list) != 0) {
- ERR("Failed to create exclusion list.");
+ if (validate_exclusion_list(name,
+ (const char **) exclude_names.array.buffer
+ .data
+
+ ) != 0) {
+ /*
+ * Assume validate_exclusion_list already prints an
+ * error message.
+ */
goto error;
}
}
}
/* Set exclusion list. */
- if (exclusion_list) {
+ if (lttng_dynamic_pointer_array_get_count(&exclude_names) > 0) {
int n;
-
- for (n = 0; exclusion_list[n]; n++) {
- event_rule_status = lttng_event_rule_tracepoint_add_exclusion(
- res.er,
- exclusion_list[n]);
+ int count = lttng_dynamic_pointer_array_get_count(
+ &exclude_names);
+
+ for (n = 0; n < count; n++) {
+ const char *exclude_name =
+ lttng_dynamic_pointer_array_get_pointer(
+ &exclude_names,
+ n);
+
+ event_rule_status =
+ lttng_event_rule_tracepoint_add_exclusion(
+ res.er,
+ exclude_name);
if (event_rule_status !=
LTTNG_EVENT_RULE_STATUS_OK) {
ERR("Failed to set tracepoint exclusion list element '%s'",
- exclusion_list[n]);
+ exclude_name);
goto error;
}
}
case LTTNG_EVENT_RULE_TYPE_SYSCALL:
{
enum lttng_event_rule_status event_rule_status;
+ enum lttng_event_rule_syscall_emission_site_type emission_site_type;
- res.er = lttng_event_rule_syscall_create();
+ if (!parse_syscall_emission_site_from_type(
+ event_rule_type_str, &emission_site_type)) {
+ ERR("Failed to parse syscall type '%s'.", event_rule_type_str);
+ goto error;
+ }
+
+ res.er = lttng_event_rule_syscall_create(emission_site_type);
if (!res.er) {
ERR("Failed to create syscall event rule.");
goto error;
argpar_state_destroy(state);
free(filter);
free(name);
- free(exclude_names);
+ lttng_dynamic_pointer_array_reset(&exclude_names);
free(log_level_str);
free(location);
free(event_name);
+ free(event_rule_type_str);
- strutils_free_null_terminated_array_of_strings(exclusion_list);
lttng_kernel_probe_location_destroy(kernel_probe_location);
lttng_userspace_probe_location_destroy(userspace_probe_location);
lttng_log_level_rule_destroy(log_level_rule);
goto error;
}
- c = lttng_condition_on_event_create(res.er);
+ c = lttng_condition_event_rule_matches_create(res.er);
lttng_event_rule_destroy(res.er);
res.er = NULL;
if (!c) {
assert(expr);
assert(*expr);
- status = lttng_condition_on_event_append_capture_descriptor(
+ status = lttng_condition_event_rule_matches_append_capture_descriptor(
c, *expr);
if (status != LTTNG_CONDITION_STATUS_OK) {
if (status == LTTNG_CONDITION_STATUS_UNSUPPORTED) {
return c;
}
-static
-struct lttng_condition *handle_condition_session_consumed_size(int *argc, const char ***argv)
-{
- struct lttng_condition *cond = NULL;
- struct argpar_state *state = NULL;
- struct argpar_item *item = NULL;
- const char *threshold_arg = NULL;
- const char *session_name_arg = NULL;
- uint64_t threshold;
- char *error = NULL;
- enum lttng_condition_status condition_status;
-
- state = argpar_state_create(*argc, *argv, event_rule_opt_descrs);
- if (!state) {
- ERR("Failed to allocate an argpar state.");
- goto error;
- }
-
- while (true) {
- enum argpar_state_parse_next_status status;
-
- ARGPAR_ITEM_DESTROY_AND_RESET(item);
- status = argpar_state_parse_next(state, &item, &error);
- if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR) {
- ERR("%s", error);
- goto error;
- } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_ERROR_UNKNOWN_OPT) {
- /* Just stop parsing here. */
- break;
- } else if (status == ARGPAR_STATE_PARSE_NEXT_STATUS_END) {
- break;
- }
-
- assert(status == ARGPAR_STATE_PARSE_NEXT_STATUS_OK);
-
- if (item->type == ARGPAR_ITEM_TYPE_OPT) {
- const struct argpar_item_opt *item_opt =
- (const struct argpar_item_opt *) item;
-
- switch (item_opt->descr->id) {
- default:
- abort();
- }
- } else {
- const struct argpar_item_non_opt *item_non_opt;
-
- assert(item->type == ARGPAR_ITEM_TYPE_NON_OPT);
-
- item_non_opt = (const struct argpar_item_non_opt *) item;
-
- switch (item_non_opt->non_opt_index) {
- case 0:
- session_name_arg = item_non_opt->arg;
- break;
- case 1:
- threshold_arg = item_non_opt->arg;
- break;
- default:
- ERR("Unexpected argument `%s`.",
- item_non_opt->arg);
- goto error;
- }
- }
- }
-
- *argc -= argpar_state_get_ingested_orig_args(state);
- *argv += argpar_state_get_ingested_orig_args(state);
-
- if (!session_name_arg) {
- ERR("Missing session name argument.");
- goto error;
- }
-
- if (!threshold_arg) {
- ERR("Missing threshold argument.");
- goto error;
- }
-
- if (utils_parse_size_suffix(threshold_arg, &threshold) != 0) {
- ERR("Failed to parse `%s` as a size.", threshold_arg);
- goto error;
- }
-
- cond = lttng_condition_session_consumed_size_create();
- if (!cond) {
- ERR("Failed to allocate a session consumed size condition.");
- goto error;
- }
-
- condition_status = lttng_condition_session_consumed_size_set_session_name(
- cond, session_name_arg);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- ERR("Failed to set session consumed size condition's session name to '%s'.",
- session_name_arg);
- goto error;
- }
-
- condition_status = lttng_condition_session_consumed_size_set_threshold(
- cond, threshold);
- if (condition_status != LTTNG_CONDITION_STATUS_OK) {
- ERR("Failed to set session consumed size condition threshold.");
- goto error;
- }
-
- goto end;
-
-error:
- lttng_condition_destroy(cond);
- cond = NULL;
-
-end:
- argpar_state_destroy(state);
- argpar_item_destroy(item);
- free(error);
- return cond;
-}
-
-static
-struct lttng_condition *handle_condition_buffer_usage_high(int *argc, const char ***argv)
-{
- ERR("High buffer usage threshold conditions are unsupported for the moment.");
- return NULL;
-}
-
-static
-struct lttng_condition *handle_condition_buffer_usage_low(int *argc, const char ***argv)
-{
- ERR("Low buffer usage threshold conditions are unsupported for the moment.");
- return NULL;
-}
-
-static
-struct lttng_condition *handle_condition_session_rotation_ongoing(int *argc, const char ***argv)
-{
- ERR("Session rotation ongoing conditions are unsupported for the moment.");
- return NULL;
-}
-
-static
-struct lttng_condition *handle_condition_session_rotation_completed(int *argc, const char ***argv)
-{
- ERR("Session rotation completed conditions are unsupported for the moment.");
- return NULL;
-}
-
struct condition_descr {
const char *name;
struct lttng_condition *(*handler) (int *argc, const char ***argv);
static const
struct condition_descr condition_descrs[] = {
{ "event-rule-matches", handle_condition_event },
- { "on-session-consumed-size", handle_condition_session_consumed_size },
- { "on-buffer-usage-high", handle_condition_buffer_usage_high },
- { "on-buffer-usage-low", handle_condition_buffer_usage_low },
- { "on-session-rotation-ongoing", handle_condition_session_rotation_ongoing },
- { "on-session-rotation-completed", handle_condition_session_rotation_completed },
};
static
{ OPT_RATE_POLICY, '\0', "rate-policy", true },
ARGPAR_OPT_DESCR_SENTINEL
};
-
+
state = argpar_state_create(*argc, *argv, rate_policy_opt_descrs);
if (!state) {
ERR("Failed to allocate an argpar state.");
{ OPT_CONDITION, '\0', "condition", true },
{ OPT_ACTION, '\0', "action", true },
{ OPT_NAME, '\0', "name", true },
- { OPT_USER_ID, '\0', "user-id", true },
+ { OPT_OWNER_UID, '\0', "owner-uid", true },
ARGPAR_OPT_DESCR_SENTINEL,
};
struct lttng_dynamic_pointer_array actions;
struct argpar_state *argpar_state = NULL;
struct argpar_item *argpar_item = NULL;
- struct lttng_action *action_group = NULL;
+ struct lttng_action *action_list = NULL;
struct lttng_action *action = NULL;
struct lttng_trigger *trigger = NULL;
char *error = NULL;
char *name = NULL;
int i;
- char *user_id = NULL;
+ char *owner_uid = NULL;
+ enum lttng_error_code ret_code;
lttng_dynamic_pointer_array_init(&actions, lttng_actions_destructor);
break;
}
- case OPT_USER_ID:
+ case OPT_OWNER_UID:
{
- if (!assign_string(&user_id, item_opt->arg,
- "--user-id")) {
+ if (!assign_string(&owner_uid, item_opt->arg,
+ "--owner-uid")) {
goto error;
}
goto error;
}
- action_group = lttng_action_group_create();
- if (!action_group) {
+ action_list = lttng_action_list_create();
+ if (!action_list) {
goto error;
}
action = lttng_dynamic_pointer_array_steal_pointer(&actions, i);
- status = lttng_action_group_add_action(action_group, action);
+ status = lttng_action_list_add_action(action_list, action);
if (status != LTTNG_ACTION_STATUS_OK) {
goto error;
}
/*
- * The `lttng_action_group_add_action()` takes a reference to
+ * The `lttng_action_list_add_action()` takes a reference to
* the action. We can destroy ours.
*/
lttng_action_destroy(action);
action = NULL;
}
- trigger = lttng_trigger_create(condition, action_group);
+ trigger = lttng_trigger_create(condition, action_list);
if (!trigger) {
goto error;
}
- if (name) {
- enum lttng_trigger_status trigger_status =
- lttng_trigger_set_name(trigger, name);
-
- if (trigger_status != LTTNG_TRIGGER_STATUS_OK) {
- ERR("Failed to set trigger name.");
- goto error;
- }
- }
-
- if (user_id) {
+ if (owner_uid) {
enum lttng_trigger_status trigger_status;
char *end;
long long uid;
errno = 0;
- uid = strtol(user_id, &end, 10);
- if (end == user_id || *end != '\0' || errno != 0) {
- ERR("Failed to parse `%s` as a user id.", user_id);
+ uid = strtol(owner_uid, &end, 10);
+ if (end == owner_uid || *end != '\0' || errno != 0) {
+ ERR("Failed to parse `%s` as a user id.", owner_uid);
}
trigger_status = lttng_trigger_set_owner_uid(trigger, uid);
}
}
- ret = lttng_register_trigger(trigger);
- if (ret) {
- ERR("Failed to register trigger: %s.", lttng_strerror(ret));
+ if (name) {
+ ret_code = lttng_register_trigger_with_name(trigger, name);
+ } else {
+ ret_code = lttng_register_trigger_with_automatic_name(trigger);
+ }
+
+ if (ret_code != LTTNG_OK) {
+ ERR("Failed to register trigger: %s.",
+ lttng_strerror(-ret_code));
goto error;
}
MSG("Trigger registered successfully.");
+ ret = 0;
goto end;
argpar_item_destroy(argpar_item);
lttng_dynamic_pointer_array_reset(&actions);
lttng_condition_destroy(condition);
- lttng_action_destroy(action_group);
+ lttng_action_destroy(action_list);
lttng_action_destroy(action);
lttng_trigger_destroy(trigger);
free(error);
free(name);
- free(user_id);
+ free(owner_uid);
return ret;
}
projects / lttng-tools.git / blobdiff