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
)
40 struct lttcomm_relayd_create_session_2_11 header
;
41 size_t header_len
, received_names_size
, offset
;
42 struct lttng_buffer_view session_name_view
;
43 struct lttng_buffer_view hostname_view
;
44 struct lttng_buffer_view base_path_view
;
46 header_len
= sizeof(header
);
48 if (payload
->size
< header_len
) {
49 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
50 header_len
, payload
->size
);
54 memcpy(&header
, payload
->data
, header_len
);
56 header
.session_name_len
= be32toh(header
.session_name_len
);
57 header
.hostname_len
= be32toh(header
.hostname_len
);
58 header
.base_path_len
= be32toh(header
.base_path_len
);
59 header
.live_timer
= be32toh(header
.live_timer
);
60 header
.current_chunk_id
.value
= be64toh(header
.current_chunk_id
.value
);
61 header
.current_chunk_id
.is_set
= !!header
.current_chunk_id
.is_set
;
62 header
.creation_time
= be64toh(header
.creation_time
);
64 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
66 received_names_size
= header
.session_name_len
+ header
.hostname_len
+
68 if (payload
->size
< header_len
+ received_names_size
) {
69 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
70 header_len
+ received_names_size
, payload
->size
);
75 /* Validate length against defined constant. */
76 if (header
.session_name_len
> LTTNG_NAME_MAX
) {
78 ERR("Length of session name (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.session_name_len
, LTTNG_NAME_MAX
);
81 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
83 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
86 if (header
.base_path_len
> LTTNG_PATH_MAX
) {
88 ERR("Length of base_path (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.base_path_len
, PATH_MAX
);
93 session_name_view
= lttng_buffer_view_from_view(payload
, offset
,
94 header
.session_name_len
);
95 offset
+= header
.session_name_len
;
96 hostname_view
= lttng_buffer_view_from_view(payload
,
97 offset
, header
.hostname_len
);
98 offset
+= header
.hostname_len
;
99 base_path_view
= lttng_buffer_view_from_view(payload
,
100 offset
, header
.base_path_len
);
102 /* Validate that names are NULL terminated. */
103 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
104 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
109 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
110 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
115 if (base_path_view
.size
!= 0 &&
116 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
117 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
123 * Length and null-termination check are already performed.
124 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
126 strcpy(session_name
, session_name_view
.data
);
127 strcpy(hostname
, hostname_view
.data
);
128 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
130 *live_timer
= header
.live_timer
;
131 *snapshot
= !!header
.snapshot
;
132 *current_chunk_id
= header
.current_chunk_id
.value
;
133 *has_current_chunk
= header
.current_chunk_id
.is_set
;
134 *creation_time
= (time_t) header
.creation_time
;
143 * cmd_recv_stream_2_11 allocates path_name and channel_name.
145 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
146 char **ret_path_name
, char **ret_channel_name
,
147 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
148 uint64_t *trace_archive_id
)
151 struct lttcomm_relayd_add_stream_2_11 header
;
152 size_t header_len
, received_names_size
;
153 struct lttng_buffer_view channel_name_view
;
154 struct lttng_buffer_view pathname_view
;
155 char *path_name
= NULL
;
156 char *channel_name
= NULL
;
158 header_len
= sizeof(header
);
160 if (payload
->size
< header_len
) {
161 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
162 header_len
, payload
->size
);
166 memcpy(&header
, payload
->data
, header_len
);
168 header
.channel_name_len
= be32toh(header
.channel_name_len
);
169 header
.pathname_len
= be32toh(header
.pathname_len
);
170 header
.tracefile_size
= be64toh(header
.tracefile_size
);
171 header
.tracefile_count
= be64toh(header
.tracefile_count
);
172 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
174 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
175 if (payload
->size
< header_len
+ received_names_size
) {
176 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
177 header_len
+ received_names_size
, payload
->size
);
182 /* Validate length against defined constant. */
183 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
185 ERR("Channel name too long");
188 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
190 ERR("Pathname too long");
194 /* Validate that names are (NULL terminated. */
195 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
196 header
.channel_name_len
);
197 pathname_view
= lttng_buffer_view_from_view(payload
,
198 header_len
+ header
.channel_name_len
, header
.pathname_len
);
200 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
201 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
206 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
207 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
212 channel_name
= strdup(channel_name_view
.data
);
215 PERROR("Channel name allocation");
219 path_name
= strdup(pathname_view
.data
);
221 PERROR("Path name allocation");
226 *tracefile_size
= header
.tracefile_size
;
227 *tracefile_count
= header
.tracefile_count
;
228 *trace_archive_id
= header
.trace_chunk_id
;
229 *ret_path_name
= path_name
;
230 *ret_channel_name
= channel_name
;
231 /* Move ownership to caller */