2 * Copyright (C) 2018 - Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License, version 2 only, as
6 * published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc., 51
15 * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <common/common.h>
23 #include <common/sessiond-comm/relayd.h>
25 #include <common/compat/endian.h>
26 #include <common/compat/string.h>
27 #include <lttng/constant.h>
32 int cmd_create_session_2_11(const struct lttng_buffer_view
*payload
,
33 char *session_name
, char *hostname
,
34 uint32_t *live_timer
, bool *snapshot
,
35 lttng_uuid sessiond_uuid
)
38 struct lttcomm_relayd_create_session_2_11 header
;
39 size_t header_len
, received_names_size
;
40 struct lttng_buffer_view session_name_view
;
41 struct lttng_buffer_view hostname_view
;
43 header_len
= sizeof(header
);
45 if (payload
->size
< header_len
) {
46 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
47 header_len
, payload
->size
);
51 memcpy(&header
, payload
->data
, header_len
);
53 header
.session_name_len
= be32toh(header
.session_name_len
);
54 header
.hostname_len
= be32toh(header
.hostname_len
);
55 header
.live_timer
= be32toh(header
.live_timer
);
57 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
59 received_names_size
= header
.session_name_len
+ header
.hostname_len
;
60 if (payload
->size
< header_len
+ received_names_size
) {
61 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
62 header_len
+ received_names_size
, payload
->size
);
67 /* Validate length against defined constant. */
68 if (header
.session_name_len
> LTTNG_NAME_MAX
) {
70 ERR("Length of session name (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.session_name_len
, LTTNG_NAME_MAX
);
73 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
75 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
79 session_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
80 header
.session_name_len
);
81 hostname_view
= lttng_buffer_view_from_view(payload
,
82 header_len
+ header
.session_name_len
, header
.hostname_len
);
84 /* Validate that names are NULL terminated. */
85 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
86 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
91 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
92 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
98 * Length and null-termination check are already performed.
99 * LTTNG_NAME_MAX and LTTNG_HOST_NAME_MAX max size are expected.
101 strcpy(session_name
, session_name_view
.data
);
102 strcpy(hostname
, hostname_view
.data
);
104 *live_timer
= header
.live_timer
;
105 *snapshot
= !!header
.snapshot
;
114 * cmd_recv_stream_2_11 allocates path_name and channel_name.
116 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
117 char **ret_path_name
, char **ret_channel_name
,
118 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
119 uint64_t *trace_archive_id
)
122 struct lttcomm_relayd_add_stream_2_11 header
;
123 size_t header_len
, received_names_size
;
124 struct lttng_buffer_view channel_name_view
;
125 struct lttng_buffer_view pathname_view
;
126 char *path_name
= NULL
;
127 char *channel_name
= NULL
;
129 header_len
= sizeof(header
);
131 if (payload
->size
< header_len
) {
132 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
133 header_len
, payload
->size
);
137 memcpy(&header
, payload
->data
, header_len
);
139 header
.channel_name_len
= be32toh(header
.channel_name_len
);
140 header
.pathname_len
= be32toh(header
.pathname_len
);
141 header
.tracefile_size
= be64toh(header
.tracefile_size
);
142 header
.tracefile_count
= be64toh(header
.tracefile_count
);
143 header
.trace_archive_id
= be64toh(header
.trace_archive_id
);
145 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
146 if (payload
->size
< header_len
+ received_names_size
) {
147 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
148 header_len
+ received_names_size
, payload
->size
);
153 /* Validate length against defined constant. */
154 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
156 ERR("Channel name too long");
159 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
161 ERR("Pathname too long");
165 /* Validate that names are (NULL terminated. */
166 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
167 header
.channel_name_len
);
168 pathname_view
= lttng_buffer_view_from_view(payload
,
169 header_len
+ header
.channel_name_len
, header
.pathname_len
);
171 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
172 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
177 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
178 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
183 channel_name
= strdup(channel_name_view
.data
);
186 PERROR("Channel name allocation");
190 path_name
= create_output_path(pathname_view
.data
);
192 PERROR("Path name allocation");
197 *tracefile_size
= header
.tracefile_size
;
198 *tracefile_count
= header
.tracefile_count
;
199 *trace_archive_id
= header
.trace_archive_id
;
200 *ret_path_name
= path_name
;
201 *ret_channel_name
= channel_name
;
202 /* Move ownership to caller */