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
, char *base_path
,
34 uint32_t *live_timer
, bool *snapshot
,
35 uint64_t *id_sessiond
, lttng_uuid sessiond_uuid
,
36 bool *has_current_chunk
, uint64_t *current_chunk_id
,
37 time_t *creation_time
,
38 bool *session_name_contains_creation_time
)
41 struct lttcomm_relayd_create_session_2_11 header
;
42 size_t header_len
, received_names_size
, offset
;
43 struct lttng_buffer_view session_name_view
;
44 struct lttng_buffer_view hostname_view
;
45 struct lttng_buffer_view base_path_view
;
47 header_len
= sizeof(header
);
49 if (payload
->size
< header_len
) {
50 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
51 header_len
, payload
->size
);
55 memcpy(&header
, payload
->data
, header_len
);
57 header
.session_name_len
= be32toh(header
.session_name_len
);
58 header
.hostname_len
= be32toh(header
.hostname_len
);
59 header
.base_path_len
= be32toh(header
.base_path_len
);
60 header
.live_timer
= be32toh(header
.live_timer
);
61 header
.current_chunk_id
.value
= be64toh(header
.current_chunk_id
.value
);
62 header
.current_chunk_id
.is_set
= !!header
.current_chunk_id
.is_set
;
63 header
.creation_time
= be64toh(header
.creation_time
);
65 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
67 received_names_size
= header
.session_name_len
+ header
.hostname_len
+
69 if (payload
->size
< header_len
+ received_names_size
) {
70 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
71 header_len
+ received_names_size
, payload
->size
);
76 /* Validate length against defined constant. */
77 if (header
.session_name_len
> LTTNG_NAME_MAX
) {
79 ERR("Length of session name (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.session_name_len
, LTTNG_NAME_MAX
);
82 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
84 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
87 if (header
.base_path_len
> LTTNG_PATH_MAX
) {
89 ERR("Length of base_path (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.base_path_len
, PATH_MAX
);
94 session_name_view
= lttng_buffer_view_from_view(payload
, offset
,
95 header
.session_name_len
);
96 offset
+= header
.session_name_len
;
97 hostname_view
= lttng_buffer_view_from_view(payload
,
98 offset
, header
.hostname_len
);
99 offset
+= header
.hostname_len
;
100 base_path_view
= lttng_buffer_view_from_view(payload
,
101 offset
, header
.base_path_len
);
103 /* Validate that names are NULL terminated. */
104 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
105 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
110 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
111 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
116 if (base_path_view
.size
!= 0 &&
117 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
118 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
124 * Length and null-termination check are already performed.
125 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
127 strcpy(session_name
, session_name_view
.data
);
128 strcpy(hostname
, hostname_view
.data
);
129 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
131 *live_timer
= header
.live_timer
;
132 *snapshot
= !!header
.snapshot
;
133 *current_chunk_id
= header
.current_chunk_id
.value
;
134 *has_current_chunk
= header
.current_chunk_id
.is_set
;
135 *creation_time
= (time_t) header
.creation_time
;
136 *session_name_contains_creation_time
=
137 header
.session_name_contains_creation_time
;
146 * cmd_recv_stream_2_11 allocates path_name and channel_name.
148 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
149 char **ret_path_name
, char **ret_channel_name
,
150 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
151 uint64_t *trace_archive_id
)
154 struct lttcomm_relayd_add_stream_2_11 header
;
155 size_t header_len
, received_names_size
;
156 struct lttng_buffer_view channel_name_view
;
157 struct lttng_buffer_view pathname_view
;
158 char *path_name
= NULL
;
159 char *channel_name
= NULL
;
161 header_len
= sizeof(header
);
163 if (payload
->size
< header_len
) {
164 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
165 header_len
, payload
->size
);
169 memcpy(&header
, payload
->data
, header_len
);
171 header
.channel_name_len
= be32toh(header
.channel_name_len
);
172 header
.pathname_len
= be32toh(header
.pathname_len
);
173 header
.tracefile_size
= be64toh(header
.tracefile_size
);
174 header
.tracefile_count
= be64toh(header
.tracefile_count
);
175 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
177 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
178 if (payload
->size
< header_len
+ received_names_size
) {
179 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
180 header_len
+ received_names_size
, payload
->size
);
185 /* Validate length against defined constant. */
186 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
188 ERR("Channel name too long");
191 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
193 ERR("Pathname too long");
197 /* Validate that names are (NULL terminated. */
198 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
199 header
.channel_name_len
);
200 pathname_view
= lttng_buffer_view_from_view(payload
,
201 header_len
+ header
.channel_name_len
, header
.pathname_len
);
203 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
204 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
209 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
210 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
215 channel_name
= strdup(channel_name_view
.data
);
218 PERROR("Channel name allocation");
222 path_name
= strdup(pathname_view
.data
);
224 PERROR("Path name allocation");
229 *tracefile_size
= header
.tracefile_size
;
230 *tracefile_count
= header
.tracefile_count
;
231 *trace_archive_id
= header
.trace_chunk_id
;
232 *ret_path_name
= path_name
;
233 *ret_channel_name
= channel_name
;
234 /* Move ownership to caller */