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
);
54 header
.session_id
= be64toh(header
.session_id
);
56 lttng_uuid_copy(sessiond_uuid
, header
.sessiond_uuid
);
58 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
);
72 } else if (header
.session_name_len
== 0) {
74 ERR("Illegal session name length of 0 received");
77 if (header
.hostname_len
> LTTNG_HOST_NAME_MAX
) {
79 ERR("Length of hostname (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.hostname_len
, LTTNG_HOST_NAME_MAX
);
82 if (header
.base_path_len
> LTTNG_PATH_MAX
) {
84 ERR("Length of base_path (%" PRIu32
" bytes) received in create_session command exceeds maximum length (%d bytes)", header
.base_path_len
, PATH_MAX
);
89 session_name_view
= lttng_buffer_view_from_view(payload
, offset
,
90 header
.session_name_len
);
91 offset
+= header
.session_name_len
;
92 hostname_view
= lttng_buffer_view_from_view(payload
,
93 offset
, header
.hostname_len
);
94 offset
+= header
.hostname_len
;
95 base_path_view
= lttng_buffer_view_from_view(payload
,
96 offset
, header
.base_path_len
);
98 /* Validate that names are NULL terminated. */
99 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
100 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
105 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
106 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
111 if (base_path_view
.size
!= 0 &&
112 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
113 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
119 * Length and null-termination check are already performed.
120 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
122 strcpy(session_name
, session_name_view
.data
);
123 strcpy(hostname
, hostname_view
.data
);
124 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
126 *live_timer
= header
.live_timer
;
127 *snapshot
= !!header
.snapshot
;
128 *current_chunk_id
= header
.current_chunk_id
.value
;
129 *has_current_chunk
= header
.current_chunk_id
.is_set
;
130 *creation_time
= (time_t) header
.creation_time
;
131 *session_name_contains_creation_time
=
132 header
.session_name_contains_creation_time
;
133 *id_sessiond
= header
.session_id
;
142 * cmd_recv_stream_2_11 allocates path_name and channel_name.
144 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
145 char **ret_path_name
, char **ret_channel_name
,
146 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
147 uint64_t *trace_archive_id
)
150 struct lttcomm_relayd_add_stream_2_11 header
;
151 size_t header_len
, received_names_size
;
152 struct lttng_buffer_view channel_name_view
;
153 struct lttng_buffer_view pathname_view
;
154 char *path_name
= NULL
;
155 char *channel_name
= NULL
;
157 header_len
= sizeof(header
);
159 if (payload
->size
< header_len
) {
160 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
161 header_len
, payload
->size
);
165 memcpy(&header
, payload
->data
, header_len
);
167 header
.channel_name_len
= be32toh(header
.channel_name_len
);
168 header
.pathname_len
= be32toh(header
.pathname_len
);
169 header
.tracefile_size
= be64toh(header
.tracefile_size
);
170 header
.tracefile_count
= be64toh(header
.tracefile_count
);
171 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
173 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
174 if (payload
->size
< header_len
+ received_names_size
) {
175 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
176 header_len
+ received_names_size
, payload
->size
);
181 /* Validate length against defined constant. */
182 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
184 ERR("Channel name too long");
187 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
189 ERR("Pathname too long");
193 /* Validate that names are (NULL terminated. */
194 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
195 header
.channel_name_len
);
196 pathname_view
= lttng_buffer_view_from_view(payload
,
197 header_len
+ header
.channel_name_len
, header
.pathname_len
);
199 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
200 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
205 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
206 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
211 channel_name
= strdup(channel_name_view
.data
);
214 PERROR("Channel name allocation");
218 path_name
= strdup(pathname_view
.data
);
220 PERROR("Path name allocation");
225 *tracefile_size
= header
.tracefile_size
;
226 *tracefile_count
= header
.tracefile_count
;
227 *trace_archive_id
= header
.trace_chunk_id
;
228 *ret_path_name
= path_name
;
229 *ret_channel_name
= channel_name
;
230 /* Move ownership to caller */