/*
* Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
+ * Copyright (C) 2016 - 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
* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#define _GNU_SOURCE
#define _LGPL_SOURCE
#include <assert.h>
-#include <string.h>
#include <inttypes.h>
#include <urcu/list.h>
#include <urcu/uatomic.h>
#include <common/sessiond-comm/sessiond-comm.h>
#include <common/relayd/relayd.h>
#include <common/utils.h>
+#include <common/compat/string.h>
#include "channel.h"
#include "consumer.h"
strncpy(tmp_events[i].name, event->name, sizeof(tmp_events[i].name));
tmp_events[i].name[sizeof(tmp_events[i].name) - 1] = '\0';
tmp_events[i].enabled = event->enabled;
- tmp_events[i].loglevel = event->loglevel;
+ tmp_events[i].loglevel = event->loglevel_value;
tmp_events[i].loglevel_type = event->loglevel_type;
i++;
}
assert(attr);
assert(domain);
- len = strnlen(attr->name, sizeof(attr->name));
+ len = lttng_strnlen(attr->name, sizeof(attr->name));
/* Validate channel name */
if (attr->name[0] == '.' ||
break;
}
case LTTNG_DOMAIN_UST:
+ case LTTNG_DOMAIN_JUL:
+ case LTTNG_DOMAIN_LOG4J:
+ case LTTNG_DOMAIN_PYTHON:
{
struct ltt_ust_channel *uchan;
+ /*
+ * FIXME
+ *
+ * Current agent implementation limitations force us to allow
+ * only one channel at once in "agent" subdomains. Each
+ * subdomain has a default channel name which must be strictly
+ * adhered to.
+ */
+ if (domain->type == LTTNG_DOMAIN_JUL) {
+ if (strncmp(attr->name, DEFAULT_JUL_CHANNEL_NAME,
+ LTTNG_SYMBOL_NAME_LEN)) {
+ ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ goto error;
+ }
+ } else if (domain->type == LTTNG_DOMAIN_LOG4J) {
+ if (strncmp(attr->name, DEFAULT_LOG4J_CHANNEL_NAME,
+ LTTNG_SYMBOL_NAME_LEN)) {
+ ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ goto error;
+ }
+ } else if (domain->type == LTTNG_DOMAIN_PYTHON) {
+ if (strncmp(attr->name, DEFAULT_PYTHON_CHANNEL_NAME,
+ LTTNG_SYMBOL_NAME_LEN)) {
+ ret = LTTNG_ERR_INVALID_CHANNEL_NAME;
+ goto error;
+ }
+ }
+
chan_ht = usess->domain_global.channels;
uchan = trace_ust_find_channel_by_name(chan_ht, attr->name);
switch (event->type) {
case LTTNG_EVENT_ALL:
- ret = event_kernel_disable_event_all(kchan);
- if (ret != LTTNG_OK) {
- goto error_unlock;
- }
- break;
- case LTTNG_EVENT_TRACEPOINT: /* fall-through */
+ case LTTNG_EVENT_TRACEPOINT:
case LTTNG_EVENT_SYSCALL:
- if (!strcmp(event_name, "*")) {
- ret = event_kernel_disable_event_type(kchan,
- event->type);
+ case LTTNG_EVENT_PROBE:
+ case LTTNG_EVENT_FUNCTION:
+ case LTTNG_EVENT_FUNCTION_ENTRY:/* fall-through */
+ if (event_name[0] == '\0') {
+ ret = event_kernel_disable_event(kchan,
+ NULL, event->type);
} else {
ret = event_kernel_disable_event(kchan,
- event_name);
- }
- if (ret != LTTNG_OK) {
- goto error_unlock;
+ event_name, event->type);
}
- break;
- case LTTNG_EVENT_PROBE:
- case LTTNG_EVENT_FUNCTION:
- case LTTNG_EVENT_FUNCTION_ENTRY:
- ret = event_kernel_disable_event(kchan, event_name);
if (ret != LTTNG_OK) {
goto error_unlock;
}
/*
* If a non-default channel has been created in the
- * session, explicitely require that -c chan_name needs
+ * session, explicitly require that -c chan_name needs
* to be provided.
*/
if (usess->has_non_default_channel && channel_name[0] == '\0') {
switch (event->type) {
case LTTNG_EVENT_ALL:
- ret = event_ust_disable_tracepoint(usess, uchan, event_name);
+ /*
+ * An empty event name means that everything
+ * should be disabled.
+ */
+ if (event->name[0] == '\0') {
+ ret = event_ust_disable_all_tracepoints(usess, uchan);
+ } else {
+ ret = event_ust_disable_tracepoint(usess, uchan,
+ event_name);
+ }
if (ret != LTTNG_OK) {
goto error_unlock;
}
ret = -LTTNG_ERR_UST_EVENT_NOT_FOUND;
goto error_unlock;
}
- /* The wild card * means that everything should be disabled. */
- if (strncmp(event->name, "*", 1) == 0 && strlen(event->name) == 1) {
+ /*
+ * An empty event name means that everything
+ * should be disabled.
+ */
+ if (event->name[0] == '\0') {
ret = event_agent_disable_all(usess, agt);
} else {
ret = event_agent_disable(usess, agt, event_name);
char *channel_name, struct lttng_event_context *ctx, int kwpipe)
{
int ret, chan_kern_created = 0, chan_ust_created = 0;
+ char *app_ctx_provider_name = NULL, *app_ctx_name = NULL;
+
+ if (ctx->ctx == LTTNG_EVENT_CONTEXT_APP_CONTEXT) {
+ app_ctx_provider_name = ctx->u.app_ctx.provider_name;
+ app_ctx_name = ctx->u.app_ctx.ctx_name;
+ }
switch (domain) {
case LTTNG_DOMAIN_KERNEL:
goto error;
}
break;
+ case LTTNG_DOMAIN_JUL:
+ case LTTNG_DOMAIN_LOG4J:
+ {
+ /*
+ * Validate channel name.
+ * If no channel name is given and the domain is JUL or LOG4J,
+ * set it to the appropriate domain-specific channel name. If
+ * a name is provided but does not match the expexted channel
+ * name, return an error.
+ */
+ if (domain == LTTNG_DOMAIN_JUL && *channel_name &&
+ strcmp(channel_name,
+ DEFAULT_JUL_CHANNEL_NAME)) {
+ ret = LTTNG_ERR_UST_CHAN_NOT_FOUND;
+ goto error;
+ } else if (domain == LTTNG_DOMAIN_LOG4J && *channel_name &&
+ strcmp(channel_name,
+ DEFAULT_LOG4J_CHANNEL_NAME)) {
+ ret = LTTNG_ERR_UST_CHAN_NOT_FOUND;
+ goto error;
+ }
+ /* break is _not_ missing here. */
+ }
case LTTNG_DOMAIN_UST:
{
struct ltt_ust_session *usess = session->ust_session;
}
ret = context_ust_add(usess, domain, ctx, channel_name);
+ free(app_ctx_provider_name);
+ free(app_ctx_name);
+ app_ctx_name = NULL;
+ app_ctx_provider_name = NULL;
if (ret != LTTNG_OK) {
goto error;
}
goto error;
}
- return LTTNG_OK;
+ ret = LTTNG_OK;
+ goto end;
error:
if (chan_kern_created) {
uchan);
trace_ust_destroy_channel(uchan);
}
+end:
+ free(app_ctx_provider_name);
+ free(app_ctx_name);
return ret;
}
DBG("Enable event command for event \'%s\'", event->name);
+ rcu_read_lock();
+
ret = validate_event_name(event->name);
if (ret) {
goto error;
}
- rcu_read_lock();
-
switch (domain->type) {
case LTTNG_DOMAIN_KERNEL:
{
event->type = LTTNG_EVENT_SYSCALL; /* Hack */
ret = event_kernel_enable_event(kchan, event,
filter_expression_a, filter_a);
+ /* We have passed ownership */
+ filter_expression_a = NULL;
+ filter_a = NULL;
if (ret != LTTNG_OK) {
- free(filter_expression_a);
- free(filter_a);
goto error;
}
break;
filter_expression = NULL;
filter = NULL;
exclusion = NULL;
- if (ret != LTTNG_OK) {
+ if (ret != LTTNG_OK && ret != LTTNG_ERR_UST_EVENT_ENABLED) {
goto error;
}
break;
memset(&uevent, 0, sizeof(uevent));
uevent.type = LTTNG_EVENT_TRACEPOINT;
uevent.loglevel_type = LTTNG_EVENT_LOGLEVEL_ALL;
- default_event_name = event_get_default_agent_ust_name(domain->type);
+ default_event_name = event_get_default_agent_ust_name(
+ domain->type);
if (!default_event_name) {
ret = LTTNG_ERR_FATAL;
goto error;
}
{
- struct lttng_filter_bytecode *filter_copy = NULL;
char *filter_expression_copy = NULL;
+ struct lttng_filter_bytecode *filter_copy = NULL;
if (filter) {
- filter_copy = zmalloc(
- sizeof(struct lttng_filter_bytecode)
- + filter->len);
+ const size_t filter_size = sizeof(
+ struct lttng_filter_bytecode)
+ + filter->len;
+
+ filter_copy = zmalloc(filter_size);
if (!filter_copy) {
ret = LTTNG_ERR_NOMEM;
goto error;
}
+ memcpy(filter_copy, filter, filter_size);
- memcpy(filter_copy, filter,
- sizeof(struct lttng_filter_bytecode)
- + filter->len);
- }
-
- if (filter_expression) {
filter_expression_copy =
strdup(filter_expression);
if (!filter_expression) {
ret = LTTNG_ERR_NOMEM;
- goto error_free_copy;
+ }
+
+ if (!filter_expression_copy || !filter_copy) {
+ free(filter_expression_copy);
+ free(filter_copy);
+ goto error;
}
}
(char *) default_chan_name,
&uevent, filter_expression_copy,
filter_copy, NULL, wpipe);
- filter_copy = NULL;
- filter_expression_copy = NULL;
-error_free_copy:
- free(filter_copy);
- free(filter_expression_copy);
}
if (ret != LTTNG_OK && ret != LTTNG_ERR_UST_EVENT_ENABLED) {
if (strncmp(event->name, "*", 1) == 0 && strlen(event->name) == 1) {
ret = event_agent_enable_all(usess, agt, event, filter,
filter_expression);
- filter = NULL;
} else {
ret = event_agent_enable(usess, agt, event, filter,
filter_expression);
- filter = NULL;
}
+ filter = NULL;
+ filter_expression = NULL;
if (ret != LTTNG_OK) {
goto error;
}
* Create session in no output mode with URIs set to NULL. The uris we've
* received are for a default snapshot output if one.
*/
- ret = cmd_create_session_uri(name, NULL, 0, creds, -1);
+ ret = cmd_create_session_uri(name, NULL, 0, creds, 0);
if (ret != LTTNG_OK) {
goto error;
}
rcu_read_lock();
cds_lfht_for_each_entry(session->ust_session->agents->ht,
&iter.iter, agt, node.node) {
- nb_event = list_lttng_agent_events(agt, events);
+ if (agt->domain == domain) {
+ nb_event = list_lttng_agent_events(
+ agt, events);
+ break;
+ }
}
rcu_read_unlock();
}
projects / lttng-tools.git / blobdiff