2 * Copyright (C) 2018 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
4 * SPDX-License-Identifier: GPL-2.0-only
11 #include <common/common.h>
12 #include <common/sessiond-comm/relayd.h>
14 #include <common/compat/endian.h>
15 #include <common/compat/string.h>
16 #include <lttng/constant.h>
21 int cmd_create_session_2_11(const struct lttng_buffer_view
*payload
,
22 char *session_name
, char *hostname
, char *base_path
,
23 uint32_t *live_timer
, bool *snapshot
,
24 uint64_t *id_sessiond
, lttng_uuid sessiond_uuid
,
25 bool *has_current_chunk
, uint64_t *current_chunk_id
,
26 time_t *creation_time
,
27 bool *session_name_contains_creation_time
)
30 struct lttcomm_relayd_create_session_2_11 header
;
31 size_t header_len
, received_names_size
, offset
;
32 struct lttng_buffer_view session_name_view
;
33 struct lttng_buffer_view hostname_view
;
34 struct lttng_buffer_view base_path_view
;
36 header_len
= sizeof(header
);
38 if (payload
->size
< header_len
) {
39 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
40 header_len
, payload
->size
);
44 memcpy(&header
, payload
->data
, header_len
);
46 header
.session_name_len
= be32toh(header
.session_name_len
);
47 header
.hostname_len
= be32toh(header
.hostname_len
);
48 header
.base_path_len
= be32toh(header
.base_path_len
);
49 header
.live_timer
= be32toh(header
.live_timer
);
50 header
.current_chunk_id
.value
= be64toh(header
.current_chunk_id
.value
);
51 header
.current_chunk_id
.is_set
= !!header
.current_chunk_id
.is_set
;
52 header
.creation_time
= be64toh(header
.creation_time
);
54 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
56 received_names_size
= header
.session_name_len
+ header
.hostname_len
+
58 if (payload
->size
< header_len
+ received_names_size
) {
59 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
60 header_len
+ received_names_size
, payload
->size
);
65 /* Validate length against defined constant. */
66 if (header
.session_name_len
> LTTNG_NAME_MAX
) {
68 ERR("Length of session name (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.session_name_len
, LTTNG_NAME_MAX
);
70 } else if (header
.session_name_len
== 0) {
72 ERR("Illegal session name length of 0 received");
75 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
77 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
80 if (header
.base_path_len
> LTTNG_PATH_MAX
) {
82 ERR("Length of base_path (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.base_path_len
, PATH_MAX
);
87 session_name_view
= lttng_buffer_view_from_view(payload
, offset
,
88 header
.session_name_len
);
89 if (!lttng_buffer_view_is_valid(&session_name_view
)) {
90 ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain session name");
95 offset
+= header
.session_name_len
;
96 hostname_view
= lttng_buffer_view_from_view(payload
,
97 offset
, header
.hostname_len
);
98 if (!lttng_buffer_view_is_valid(&hostname_view
)) {
99 ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain hostname");
104 offset
+= header
.hostname_len
;
105 base_path_view
= lttng_buffer_view_from_view(payload
,
106 offset
, header
.base_path_len
);
107 if (header
.base_path_len
> 0 && !lttng_buffer_view_is_valid(&base_path_view
)) {
108 ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain base path");
113 /* Validate that names are NULL terminated. */
114 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
115 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
120 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
121 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
126 if (base_path_view
.size
!= 0 &&
127 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
128 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
134 * Length and null-termination check are already performed.
135 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
137 strcpy(session_name
, session_name_view
.data
);
138 strcpy(hostname
, hostname_view
.data
);
139 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
141 *live_timer
= header
.live_timer
;
142 *snapshot
= !!header
.snapshot
;
143 *current_chunk_id
= header
.current_chunk_id
.value
;
144 *has_current_chunk
= header
.current_chunk_id
.is_set
;
145 *creation_time
= (time_t) header
.creation_time
;
146 *session_name_contains_creation_time
=
147 header
.session_name_contains_creation_time
;
156 * cmd_recv_stream_2_11 allocates path_name and channel_name.
158 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
159 char **ret_path_name
, char **ret_channel_name
,
160 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
161 uint64_t *trace_archive_id
)
164 struct lttcomm_relayd_add_stream_2_11 header
;
165 size_t header_len
, received_names_size
;
166 struct lttng_buffer_view channel_name_view
;
167 struct lttng_buffer_view pathname_view
;
168 char *path_name
= NULL
;
169 char *channel_name
= NULL
;
171 header_len
= sizeof(header
);
173 if (payload
->size
< header_len
) {
174 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
175 header_len
, payload
->size
);
179 memcpy(&header
, payload
->data
, header_len
);
181 header
.channel_name_len
= be32toh(header
.channel_name_len
);
182 header
.pathname_len
= be32toh(header
.pathname_len
);
183 header
.tracefile_size
= be64toh(header
.tracefile_size
);
184 header
.tracefile_count
= be64toh(header
.tracefile_count
);
185 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
187 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
188 if (payload
->size
< header_len
+ received_names_size
) {
189 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
190 header_len
+ received_names_size
, payload
->size
);
195 /* Validate length against defined constant. */
196 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
198 ERR("Channel name too long");
201 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
203 ERR("Pathname too long");
207 /* Validate that names are (NULL terminated. */
208 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
209 header
.channel_name_len
);
210 if (!lttng_buffer_view_is_valid(&channel_name_view
)) {
211 ERR("Invalid payload received in \"cmd_recv_stream_2_11\": buffer too short for channel name");
216 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
217 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
222 pathname_view
= lttng_buffer_view_from_view(payload
,
223 header_len
+ header
.channel_name_len
, header
.pathname_len
);
224 if (!lttng_buffer_view_is_valid(&pathname_view
)) {
225 ERR("Invalid payload received in \"cmd_recv_stream_2_11\": buffer too short for path name");
230 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
231 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
236 channel_name
= strdup(channel_name_view
.data
);
239 PERROR("Channel name allocation");
243 path_name
= strdup(pathname_view
.data
);
245 PERROR("Path name allocation");
250 *tracefile_size
= header
.tracefile_size
;
251 *tracefile_count
= header
.tracefile_count
;
252 *trace_archive_id
= header
.trace_chunk_id
;
253 *ret_path_name
= path_name
;
254 *ret_channel_name
= channel_name
;
255 /* Move ownership to caller */