2 * Copyright (C) 2018 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
4 * SPDX-License-Identifier: GPL-2.0-only
12 #include <common/common.h>
13 #include <common/sessiond-comm/relayd.h>
15 #include <common/compat/endian.h>
16 #include <common/compat/string.h>
17 #include <lttng/constant.h>
22 int cmd_create_session_2_11(const struct lttng_buffer_view
*payload
,
23 char *session_name
, char *hostname
, char *base_path
,
24 uint32_t *live_timer
, bool *snapshot
,
25 uint64_t *id_sessiond
, lttng_uuid sessiond_uuid
,
26 bool *has_current_chunk
, uint64_t *current_chunk_id
,
27 time_t *creation_time
,
28 bool *session_name_contains_creation_time
)
31 struct lttcomm_relayd_create_session_2_11 header
;
32 size_t header_len
, received_names_size
, offset
;
33 struct lttng_buffer_view session_name_view
;
34 struct lttng_buffer_view hostname_view
;
35 struct lttng_buffer_view base_path_view
;
37 header_len
= sizeof(header
);
39 if (payload
->size
< header_len
) {
40 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
41 header_len
, payload
->size
);
45 memcpy(&header
, payload
->data
, header_len
);
47 header
.session_name_len
= be32toh(header
.session_name_len
);
48 header
.hostname_len
= be32toh(header
.hostname_len
);
49 header
.base_path_len
= be32toh(header
.base_path_len
);
50 header
.live_timer
= be32toh(header
.live_timer
);
51 header
.current_chunk_id
.value
= be64toh(header
.current_chunk_id
.value
);
52 header
.current_chunk_id
.is_set
= !!header
.current_chunk_id
.is_set
;
53 header
.creation_time
= be64toh(header
.creation_time
);
55 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
57 received_names_size
= header
.session_name_len
+ header
.hostname_len
+
59 if (payload
->size
< header_len
+ received_names_size
) {
60 ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes",
61 header_len
+ received_names_size
, payload
->size
);
66 /* Validate length against defined constant. */
67 if (header
.session_name_len
> LTTNG_NAME_MAX
) {
69 ERR("Length of session name (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.session_name_len
, LTTNG_NAME_MAX
);
71 } else if (header
.session_name_len
== 0) {
73 ERR("Illegal session name length of 0 received");
76 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
78 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
81 if (header
.base_path_len
> LTTNG_PATH_MAX
) {
83 ERR("Length of base_path (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.base_path_len
, PATH_MAX
);
88 session_name_view
= lttng_buffer_view_from_view(payload
, offset
,
89 header
.session_name_len
);
90 if (!lttng_buffer_view_is_valid(&session_name_view
)) {
91 ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain session name");
96 offset
+= header
.session_name_len
;
97 hostname_view
= lttng_buffer_view_from_view(payload
,
98 offset
, header
.hostname_len
);
99 if (!lttng_buffer_view_is_valid(&hostname_view
)) {
100 ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain hostname");
105 offset
+= header
.hostname_len
;
106 base_path_view
= lttng_buffer_view_from_view(payload
,
107 offset
, header
.base_path_len
);
108 if (header
.base_path_len
> 0 && !lttng_buffer_view_is_valid(&base_path_view
)) {
109 ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain base path");
114 /* Validate that names are NULL terminated. */
115 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
116 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
121 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
122 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
127 if (base_path_view
.size
!= 0 &&
128 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
129 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
135 * Length and null-termination check are already performed.
136 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
138 strcpy(session_name
, session_name_view
.data
);
139 strcpy(hostname
, hostname_view
.data
);
140 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
142 *live_timer
= header
.live_timer
;
143 *snapshot
= !!header
.snapshot
;
144 *current_chunk_id
= header
.current_chunk_id
.value
;
145 *has_current_chunk
= header
.current_chunk_id
.is_set
;
146 *creation_time
= (time_t) header
.creation_time
;
147 *session_name_contains_creation_time
=
148 header
.session_name_contains_creation_time
;
157 * cmd_recv_stream_2_11 allocates path_name and channel_name.
159 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
160 char **ret_path_name
, char **ret_channel_name
,
161 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
162 uint64_t *trace_archive_id
)
165 struct lttcomm_relayd_add_stream_2_11 header
;
166 size_t header_len
, received_names_size
;
167 struct lttng_buffer_view channel_name_view
;
168 struct lttng_buffer_view pathname_view
;
169 char *path_name
= NULL
;
170 char *channel_name
= NULL
;
172 header_len
= sizeof(header
);
174 if (payload
->size
< header_len
) {
175 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
176 header_len
, payload
->size
);
180 memcpy(&header
, payload
->data
, header_len
);
182 header
.channel_name_len
= be32toh(header
.channel_name_len
);
183 header
.pathname_len
= be32toh(header
.pathname_len
);
184 header
.tracefile_size
= be64toh(header
.tracefile_size
);
185 header
.tracefile_count
= be64toh(header
.tracefile_count
);
186 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
188 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
189 if (payload
->size
< header_len
+ received_names_size
) {
190 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
191 header_len
+ received_names_size
, payload
->size
);
196 /* Validate length against defined constant. */
197 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
199 ERR("Channel name too long");
202 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
204 ERR("Pathname too long");
208 /* Validate that names are (NULL terminated. */
209 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
210 header
.channel_name_len
);
211 if (!lttng_buffer_view_is_valid(&channel_name_view
)) {
212 ERR("Invalid payload received in \"cmd_recv_stream_2_11\": buffer too short for channel name");
217 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
218 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
223 pathname_view
= lttng_buffer_view_from_view(payload
,
224 header_len
+ header
.channel_name_len
, header
.pathname_len
);
225 if (!lttng_buffer_view_is_valid(&pathname_view
)) {
226 ERR("Invalid payload received in \"cmd_recv_stream_2_11\": buffer too short for path name");
231 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
232 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
237 channel_name
= strdup(channel_name_view
.data
);
240 PERROR("Channel name allocation");
244 path_name
= strdup(pathname_view
.data
);
246 PERROR("Path name allocation");
251 *tracefile_size
= header
.tracefile_size
;
252 *tracefile_count
= header
.tracefile_count
;
253 *trace_archive_id
= header
.trace_chunk_id
;
254 *ret_path_name
= path_name
;
255 *ret_channel_name
= channel_name
;
256 /* Move ownership to caller */