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 offset
+= header
.session_name_len
;
91 hostname_view
= lttng_buffer_view_from_view(payload
,
92 offset
, header
.hostname_len
);
93 offset
+= header
.hostname_len
;
94 base_path_view
= lttng_buffer_view_from_view(payload
,
95 offset
, header
.base_path_len
);
97 /* Validate that names are NULL terminated. */
98 if (session_name_view
.data
[session_name_view
.size
- 1] != '\0') {
99 ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)");
104 if (hostname_view
.data
[hostname_view
.size
- 1] != '\0') {
105 ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)");
110 if (base_path_view
.size
!= 0 &&
111 base_path_view
.data
[base_path_view
.size
- 1] != '\0') {
112 ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)");
118 * Length and null-termination check are already performed.
119 * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected.
121 strcpy(session_name
, session_name_view
.data
);
122 strcpy(hostname
, hostname_view
.data
);
123 strcpy(base_path
, base_path_view
.size
? base_path_view
.data
: "");
125 *live_timer
= header
.live_timer
;
126 *snapshot
= !!header
.snapshot
;
127 *current_chunk_id
= header
.current_chunk_id
.value
;
128 *has_current_chunk
= header
.current_chunk_id
.is_set
;
129 *creation_time
= (time_t) header
.creation_time
;
130 *session_name_contains_creation_time
=
131 header
.session_name_contains_creation_time
;
140 * cmd_recv_stream_2_11 allocates path_name and channel_name.
142 int cmd_recv_stream_2_11(const struct lttng_buffer_view
*payload
,
143 char **ret_path_name
, char **ret_channel_name
,
144 uint64_t *tracefile_size
, uint64_t *tracefile_count
,
145 uint64_t *trace_archive_id
)
148 struct lttcomm_relayd_add_stream_2_11 header
;
149 size_t header_len
, received_names_size
;
150 struct lttng_buffer_view channel_name_view
;
151 struct lttng_buffer_view pathname_view
;
152 char *path_name
= NULL
;
153 char *channel_name
= NULL
;
155 header_len
= sizeof(header
);
157 if (payload
->size
< header_len
) {
158 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
159 header_len
, payload
->size
);
163 memcpy(&header
, payload
->data
, header_len
);
165 header
.channel_name_len
= be32toh(header
.channel_name_len
);
166 header
.pathname_len
= be32toh(header
.pathname_len
);
167 header
.tracefile_size
= be64toh(header
.tracefile_size
);
168 header
.tracefile_count
= be64toh(header
.tracefile_count
);
169 header
.trace_chunk_id
= be64toh(header
.trace_chunk_id
);
171 received_names_size
= header
.channel_name_len
+ header
.pathname_len
;
172 if (payload
->size
< header_len
+ received_names_size
) {
173 ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes",
174 header_len
+ received_names_size
, payload
->size
);
179 /* Validate length against defined constant. */
180 if (header
.channel_name_len
> DEFAULT_STREAM_NAME_LEN
) {
182 ERR("Channel name too long");
185 if (header
.pathname_len
> LTTNG_NAME_MAX
) {
187 ERR("Pathname too long");
191 /* Validate that names are (NULL terminated. */
192 channel_name_view
= lttng_buffer_view_from_view(payload
, header_len
,
193 header
.channel_name_len
);
194 pathname_view
= lttng_buffer_view_from_view(payload
,
195 header_len
+ header
.channel_name_len
, header
.pathname_len
);
197 if (channel_name_view
.data
[channel_name_view
.size
- 1] != '\0') {
198 ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)");
203 if (pathname_view
.data
[pathname_view
.size
- 1] != '\0') {
204 ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)");
209 channel_name
= strdup(channel_name_view
.data
);
212 PERROR("Channel name allocation");
216 path_name
= strdup(pathname_view
.data
);
218 PERROR("Path name allocation");
223 *tracefile_size
= header
.tracefile_size
;
224 *tracefile_count
= header
.tracefile_count
;
225 *trace_archive_id
= header
.trace_chunk_id
;
226 *ret_path_name
= path_name
;
227 *ret_channel_name
= channel_name
;
228 /* Move ownership to caller */