* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <common/common.h>
#include <common/defaults.h>
+#include <common/compat/endian.h>
#include <common/sessiond-comm/relayd.h>
+#include <common/index/ctf-index.h>
#include "relayd.h"
char *buf;
uint64_t buf_size = sizeof(header);
+ if (rsock->sock.fd < 0) {
+ return -ECONNRESET;
+ }
+
if (data) {
buf_size += size;
}
goto alloc_error;
}
+ memset(&header, 0, sizeof(header));
header.cmd = htobe32(cmd);
header.data_size = htobe64(size);
{
int ret;
+ if (rsock->sock.fd < 0) {
+ return -ECONNRESET;
+ }
+
DBG3("Relayd waiting for reply of size %zu", size);
ret = rsock->sock.ops->recvmsg(&rsock->sock, data, size, 0);
return ret;
}
+/*
+ * Starting at 2.4, RELAYD_CREATE_SESSION takes additional parameters to
+ * support the live reading capability.
+ */
+static int relayd_create_session_2_4(struct lttcomm_relayd_sock *rsock,
+ uint64_t *session_id, char *session_name, char *hostname,
+ int session_live_timer, unsigned int snapshot)
+{
+ int ret;
+ struct lttcomm_relayd_create_session_2_4 msg;
+
+ if (lttng_strncpy(msg.session_name, session_name,
+ sizeof(msg.session_name))) {
+ ret = -1;
+ goto error;
+ }
+ if (lttng_strncpy(msg.hostname, hostname, sizeof(msg.hostname))) {
+ ret = -1;
+ goto error;
+ }
+ msg.live_timer = htobe32(session_live_timer);
+ msg.snapshot = htobe32(snapshot);
+
+ /* Send command */
+ ret = send_command(rsock, RELAYD_CREATE_SESSION, &msg, sizeof(msg), 0);
+ if (ret < 0) {
+ goto error;
+ }
+
+error:
+ return ret;
+}
+
+/*
+ * RELAYD_CREATE_SESSION from 2.1 to 2.3.
+ */
+static int relayd_create_session_2_1(struct lttcomm_relayd_sock *rsock,
+ uint64_t *session_id)
+{
+ int ret;
+
+ /* Send command */
+ ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0);
+ if (ret < 0) {
+ goto error;
+ }
+
+error:
+ return ret;
+}
+
/*
* Send a RELAYD_CREATE_SESSION command to the relayd with the given socket and
* set session_id of the relayd if we have a successful reply from the relayd.
* On success, return 0 else a negative value which is either an errno error or
* a lttng error code from the relayd.
*/
-int relayd_create_session(struct lttcomm_relayd_sock *rsock, uint64_t *session_id)
+int relayd_create_session(struct lttcomm_relayd_sock *rsock, uint64_t *session_id,
+ char *session_name, char *hostname, int session_live_timer,
+ unsigned int snapshot)
{
int ret;
struct lttcomm_relayd_status_session reply;
DBG("Relayd create session");
- /* Send command */
- ret = send_command(rsock, RELAYD_CREATE_SESSION, NULL, 0, 0);
+ switch(rsock->minor) {
+ case 1:
+ case 2:
+ case 3:
+ ret = relayd_create_session_2_1(rsock, session_id);
+ break;
+ case 4:
+ default:
+ ret = relayd_create_session_2_4(rsock, session_id, session_name,
+ hostname, session_live_timer, snapshot);
+ break;
+ }
+
if (ret < 0) {
goto error;
}
/* Compat with relayd 2.1 */
if (rsock->minor == 1) {
- strncpy(msg.channel_name, channel_name, sizeof(msg.channel_name));
- strncpy(msg.pathname, pathname, sizeof(msg.pathname));
+ memset(&msg, 0, sizeof(msg));
+ if (lttng_strncpy(msg.channel_name, channel_name,
+ sizeof(msg.channel_name))) {
+ ret = -1;
+ goto error;
+ }
+ if (lttng_strncpy(msg.pathname, pathname,
+ sizeof(msg.pathname))) {
+ ret = -1;
+ goto error;
+ }
/* Send command */
ret = send_command(rsock, RELAYD_ADD_STREAM, (void *) &msg, sizeof(msg), 0);
goto error;
}
} else {
+ memset(&msg_2_2, 0, sizeof(msg_2_2));
/* Compat with relayd 2.2+ */
- strncpy(msg_2_2.channel_name, channel_name, sizeof(msg_2_2.channel_name));
- strncpy(msg_2_2.pathname, pathname, sizeof(msg_2_2.pathname));
+ if (lttng_strncpy(msg_2_2.channel_name, channel_name,
+ sizeof(msg_2_2.channel_name))) {
+ ret = -1;
+ goto error;
+ }
+ if (lttng_strncpy(msg_2_2.pathname, pathname,
+ sizeof(msg_2_2.pathname))) {
+ ret = -1;
+ goto error;
+ }
msg_2_2.tracefile_size = htobe64(tracefile_size);
msg_2_2.tracefile_count = htobe64(tracefile_count);
return ret;
}
+/*
+ * Inform the relay that all the streams for the current channel has been sent.
+ *
+ * On success return 0 else return ret_code negative value.
+ */
+int relayd_streams_sent(struct lttcomm_relayd_sock *rsock)
+{
+ int ret;
+ struct lttcomm_relayd_generic_reply reply;
+
+ /* Code flow error. Safety net. */
+ assert(rsock);
+
+ DBG("Relayd sending streams sent.");
+
+ /* This feature was introduced in 2.4, ignore it for earlier versions. */
+ if (rsock->minor < 4) {
+ ret = 0;
+ goto end;
+ }
+
+ /* Send command */
+ ret = send_command(rsock, RELAYD_STREAMS_SENT, NULL, 0, 0);
+ if (ret < 0) {
+ goto error;
+ }
+
+ /* Waiting for reply */
+ ret = recv_reply(rsock, (void *) &reply, sizeof(reply));
+ if (ret < 0) {
+ goto error;
+ }
+
+ /* Back to host bytes order. */
+ reply.ret_code = be32toh(reply.ret_code);
+
+ /* Return session id or negative ret code. */
+ if (reply.ret_code != LTTNG_OK) {
+ ret = -1;
+ ERR("Relayd streams sent replied error %d", reply.ret_code);
+ goto error;
+ } else {
+ /* Success */
+ ret = 0;
+ }
+
+ DBG("Relayd streams sent success");
+
+error:
+end:
+ return ret;
+}
+
/*
* Check version numbers on the relayd.
* If major versions are compatible, we assign minor_to_use to the
DBG("Relayd version check for major.minor %u.%u", rsock->major,
rsock->minor);
+ memset(&msg, 0, sizeof(msg));
/* Prepare network byte order before transmission. */
msg.major = htobe32(rsock->major);
msg.minor = htobe32(rsock->minor);
/* Code flow error. Safety net. */
assert(rsock);
+ if (!rsock->sock.ops) {
+ /*
+ * Attempting a connect on a non-initialized socket.
+ */
+ return -ECONNRESET;
+ }
+
DBG3("Relayd connect ...");
return rsock->sock.ops->connect(&rsock->sock);
PERROR("relayd_close default close");
}
}
+ rsock->sock.fd = -1;
end:
return ret;
assert(rsock);
assert(hdr);
+ if (rsock->sock.fd < 0) {
+ return -ECONNRESET;
+ }
+
DBG3("Relayd sending data header of size %zu", size);
/* Again, safety net */
DBG("Relayd closing stream id %" PRIu64, stream_id);
+ memset(&msg, 0, sizeof(msg));
msg.stream_id = htobe64(stream_id);
msg.last_net_seq_num = htobe64(last_net_seq_num);
DBG("Relayd data pending for stream id %" PRIu64, stream_id);
+ memset(&msg, 0, sizeof(msg));
msg.stream_id = htobe64(stream_id);
msg.last_net_seq_num = htobe64(last_net_seq_num);
DBG("Relayd checking quiescent control state");
+ memset(&msg, 0, sizeof(msg));
msg.stream_id = htobe64(metadata_stream_id);
/* Send command */
DBG("Relayd begin data pending");
+ memset(&msg, 0, sizeof(msg));
msg.session_id = htobe64(id);
/* Send command */
int relayd_end_data_pending(struct lttcomm_relayd_sock *rsock, uint64_t id,
unsigned int *is_data_inflight)
{
- int ret;
+ int ret, recv_ret;
struct lttcomm_relayd_end_data_pending msg;
struct lttcomm_relayd_generic_reply reply;
DBG("Relayd end data pending");
+ memset(&msg, 0, sizeof(msg));
msg.session_id = htobe64(id);
/* Send command */
goto error;
}
- reply.ret_code = be32toh(reply.ret_code);
- if (reply.ret_code < 0) {
- ret = reply.ret_code;
+ recv_ret = be32toh(reply.ret_code);
+ if (recv_ret < 0) {
+ ret = recv_ret;
goto error;
}
- *is_data_inflight = reply.ret_code;
+ *is_data_inflight = recv_ret;
- DBG("Relayd end data pending is data inflight: %d", reply.ret_code);
+ DBG("Relayd end data pending is data inflight: %d", recv_ret);
return 0;
error:
return ret;
}
+
+/*
+ * Send index to the relayd.
+ */
+int relayd_send_index(struct lttcomm_relayd_sock *rsock,
+ struct ctf_packet_index *index, uint64_t relay_stream_id,
+ uint64_t net_seq_num)
+{
+ int ret;
+ struct lttcomm_relayd_index msg;
+ struct lttcomm_relayd_generic_reply reply;
+
+ /* Code flow error. Safety net. */
+ assert(rsock);
+
+ if (rsock->minor < 4) {
+ DBG("Not sending indexes before protocol 2.4");
+ ret = 0;
+ goto error;
+ }
+
+ DBG("Relayd sending index for stream ID %" PRIu64, relay_stream_id);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.relay_stream_id = htobe64(relay_stream_id);
+ msg.net_seq_num = htobe64(net_seq_num);
+
+ /* The index is already in big endian. */
+ msg.packet_size = index->packet_size;
+ msg.content_size = index->content_size;
+ msg.timestamp_begin = index->timestamp_begin;
+ msg.timestamp_end = index->timestamp_end;
+ msg.events_discarded = index->events_discarded;
+ msg.stream_id = index->stream_id;
+
+ if (rsock->minor >= 8) {
+ msg.stream_instance_id = index->stream_instance_id;
+ msg.packet_seq_num = index->packet_seq_num;
+ }
+
+ /* Send command */
+ ret = send_command(rsock, RELAYD_SEND_INDEX, &msg, sizeof(msg), 0);
+ if (ret < 0) {
+ goto error;
+ }
+
+ /* Receive response */
+ ret = recv_reply(rsock, (void *) &reply, sizeof(reply));
+ if (ret < 0) {
+ goto error;
+ }
+
+ reply.ret_code = be32toh(reply.ret_code);
+
+ /* Return session id or negative ret code. */
+ if (reply.ret_code != LTTNG_OK) {
+ ret = -1;
+ ERR("Relayd send index replied error %d", reply.ret_code);
+ } else {
+ /* Success */
+ ret = 0;
+ }
+
+error:
+ return ret;
+}
+
+/*
+ * Ask the relay to reset the metadata trace file (regeneration).
+ */
+int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock,
+ uint64_t stream_id, uint64_t version)
+{
+ int ret;
+ struct lttcomm_relayd_reset_metadata msg;
+ struct lttcomm_relayd_generic_reply reply;
+
+ /* Code flow error. Safety net. */
+ assert(rsock);
+
+ /* Should have been prevented by the sessiond. */
+ if (rsock->minor < 8) {
+ ERR("Metadata regeneration unsupported before 2.8");
+ ret = -1;
+ goto error;
+ }
+
+ DBG("Relayd reset metadata stream id %" PRIu64, stream_id);
+
+ memset(&msg, 0, sizeof(msg));
+ msg.stream_id = htobe64(stream_id);
+ msg.version = htobe64(version);
+
+ /* Send command */
+ ret = send_command(rsock, RELAYD_RESET_METADATA, (void *) &msg, sizeof(msg), 0);
+ if (ret < 0) {
+ goto error;
+ }
+
+ /* Receive response */
+ ret = recv_reply(rsock, (void *) &reply, sizeof(reply));
+ if (ret < 0) {
+ goto error;
+ }
+
+ reply.ret_code = be32toh(reply.ret_code);
+
+ /* Return session id or negative ret code. */
+ if (reply.ret_code != LTTNG_OK) {
+ ret = -1;
+ ERR("Relayd reset metadata replied error %d", reply.ret_code);
+ } else {
+ /* Success */
+ ret = 0;
+ }
+
+ DBG("Relayd reset metadata stream id %" PRIu64 " successfully", stream_id);
+
+error:
+ return ret;
+}
projects / lttng-tools.git / blobdiff