Commit | Line | Data |
---|---|---|
f86f6389 | 1 | /* |
ab5be9fa | 2 | * Copyright (C) 2018 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com> |
f86f6389 | 3 | * |
ab5be9fa | 4 | * SPDX-License-Identifier: GPL-2.0-only |
f86f6389 | 5 | * |
f86f6389 JR |
6 | */ |
7 | ||
8 | #define _LGPL_SOURCE | |
28ab034a JG |
9 | #include "cmd-2-11.hpp" |
10 | #include "utils.hpp" | |
f86f6389 | 11 | |
c9e313bc | 12 | #include <common/common.hpp> |
c9e313bc SM |
13 | #include <common/compat/endian.hpp> |
14 | #include <common/compat/string.hpp> | |
28ab034a JG |
15 | #include <common/sessiond-comm/relayd.hpp> |
16 | ||
f86f6389 JR |
17 | #include <lttng/constant.h> |
18 | ||
28ab034a | 19 | #include <inttypes.h> |
f86f6389 JR |
20 | |
21 | int cmd_create_session_2_11(const struct lttng_buffer_view *payload, | |
28ab034a JG |
22 | char *session_name, |
23 | char *hostname, | |
24 | char *base_path, | |
25 | uint32_t *live_timer, | |
26 | bool *snapshot, | |
27 | uint64_t *id_sessiond, | |
28 | lttng_uuid& sessiond_uuid, | |
29 | bool *has_current_chunk, | |
30 | uint64_t *current_chunk_id, | |
31 | time_t *creation_time, | |
32 | bool *session_name_contains_creation_time) | |
f86f6389 JR |
33 | { |
34 | int ret; | |
35 | struct lttcomm_relayd_create_session_2_11 header; | |
6fa5fe7c | 36 | size_t header_len, received_names_size, offset; |
f86f6389 JR |
37 | struct lttng_buffer_view session_name_view; |
38 | struct lttng_buffer_view hostname_view; | |
6fa5fe7c | 39 | struct lttng_buffer_view base_path_view; |
f86f6389 JR |
40 | |
41 | header_len = sizeof(header); | |
42 | ||
43 | if (payload->size < header_len) { | |
44 | ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes", | |
28ab034a JG |
45 | header_len, |
46 | payload->size); | |
f86f6389 JR |
47 | ret = -1; |
48 | goto error; | |
49 | } | |
50 | memcpy(&header, payload->data, header_len); | |
51 | ||
52 | header.session_name_len = be32toh(header.session_name_len); | |
53 | header.hostname_len = be32toh(header.hostname_len); | |
6fa5fe7c | 54 | header.base_path_len = be32toh(header.base_path_len); |
f86f6389 | 55 | header.live_timer = be32toh(header.live_timer); |
84fa4db5 JG |
56 | header.current_chunk_id.value = be64toh(header.current_chunk_id.value); |
57 | header.current_chunk_id.is_set = !!header.current_chunk_id.is_set; | |
db1da059 | 58 | header.creation_time = be64toh(header.creation_time); |
d1bc11c3 | 59 | header.session_id = be64toh(header.session_id); |
f86f6389 | 60 | |
28ab034a JG |
61 | std::copy(std::begin(header.sessiond_uuid), |
62 | std::end(header.sessiond_uuid), | |
63 | sessiond_uuid.begin()); | |
23c8ff50 | 64 | |
28ab034a | 65 | received_names_size = header.session_name_len + header.hostname_len + header.base_path_len; |
f86f6389 JR |
66 | if (payload->size < header_len + received_names_size) { |
67 | ERR("Unexpected payload size in \"cmd_create_session_2_11\": expected >= %zu bytes, got %zu bytes", | |
28ab034a JG |
68 | header_len + received_names_size, |
69 | payload->size); | |
f86f6389 JR |
70 | ret = -1; |
71 | goto error; | |
72 | } | |
73 | ||
74 | /* Validate length against defined constant. */ | |
75 | if (header.session_name_len > LTTNG_NAME_MAX) { | |
76 | ret = -ENAMETOOLONG; | |
28ab034a JG |
77 | ERR("Length of session name (%" PRIu32 |
78 | " bytes) received in create_session command exceeds maximum length (%d bytes)", | |
79 | header.session_name_len, | |
80 | LTTNG_NAME_MAX); | |
f86f6389 | 81 | goto error; |
e7f8eff3 JG |
82 | } else if (header.session_name_len == 0) { |
83 | ret = -EINVAL; | |
84 | ERR("Illegal session name length of 0 received"); | |
85 | goto error; | |
f86f6389 JR |
86 | } |
87 | if (header.hostname_len > LTTNG_HOST_NAME_MAX) { | |
88 | ret = -ENAMETOOLONG; | |
28ab034a JG |
89 | ERR("Length of hostname (%" PRIu32 |
90 | " bytes) received in create_session command exceeds maximum length (%d bytes)", | |
91 | header.hostname_len, | |
92 | LTTNG_HOST_NAME_MAX); | |
f86f6389 JR |
93 | goto error; |
94 | } | |
6fa5fe7c MD |
95 | if (header.base_path_len > LTTNG_PATH_MAX) { |
96 | ret = -ENAMETOOLONG; | |
28ab034a JG |
97 | ERR("Length of base_path (%" PRIu32 |
98 | " bytes) received in create_session command exceeds maximum length (%d bytes)", | |
99 | header.base_path_len, | |
100 | PATH_MAX); | |
6fa5fe7c MD |
101 | goto error; |
102 | } | |
f86f6389 | 103 | |
6fa5fe7c | 104 | offset = header_len; |
28ab034a | 105 | session_name_view = lttng_buffer_view_from_view(payload, offset, header.session_name_len); |
3e6e0df2 JG |
106 | if (!lttng_buffer_view_is_valid(&session_name_view)) { |
107 | ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain session name"); | |
108 | ret = -1; | |
109 | goto error; | |
110 | } | |
111 | ||
6fa5fe7c | 112 | offset += header.session_name_len; |
28ab034a | 113 | hostname_view = lttng_buffer_view_from_view(payload, offset, header.hostname_len); |
3e6e0df2 JG |
114 | if (!lttng_buffer_view_is_valid(&hostname_view)) { |
115 | ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain hostname"); | |
116 | ret = -1; | |
117 | goto error; | |
118 | } | |
119 | ||
6fa5fe7c | 120 | offset += header.hostname_len; |
28ab034a | 121 | base_path_view = lttng_buffer_view_from_view(payload, offset, header.base_path_len); |
3e6e0df2 JG |
122 | if (header.base_path_len > 0 && !lttng_buffer_view_is_valid(&base_path_view)) { |
123 | ERR("Invalid payload in \"cmd_create_session_2_11\": buffer too short to contain base path"); | |
124 | ret = -1; | |
125 | goto error; | |
126 | } | |
f86f6389 JR |
127 | |
128 | /* Validate that names are NULL terminated. */ | |
129 | if (session_name_view.data[session_name_view.size - 1] != '\0') { | |
130 | ERR("cmd_create_session_2_11 session_name is invalid (not NULL terminated)"); | |
131 | ret = -1; | |
132 | goto error; | |
133 | } | |
134 | ||
135 | if (hostname_view.data[hostname_view.size - 1] != '\0') { | |
136 | ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)"); | |
137 | ret = -1; | |
138 | goto error; | |
139 | } | |
140 | ||
28ab034a | 141 | if (base_path_view.size != 0 && base_path_view.data[base_path_view.size - 1] != '\0') { |
6fa5fe7c MD |
142 | ERR("cmd_create_session_2_11 base_path is invalid (not NULL terminated)"); |
143 | ret = -1; | |
144 | goto error; | |
145 | } | |
146 | ||
f86f6389 JR |
147 | /* |
148 | * Length and null-termination check are already performed. | |
6fa5fe7c | 149 | * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected. |
f86f6389 JR |
150 | */ |
151 | strcpy(session_name, session_name_view.data); | |
152 | strcpy(hostname, hostname_view.data); | |
6fa5fe7c | 153 | strcpy(base_path, base_path_view.size ? base_path_view.data : ""); |
f86f6389 JR |
154 | |
155 | *live_timer = header.live_timer; | |
156 | *snapshot = !!header.snapshot; | |
84fa4db5 JG |
157 | *current_chunk_id = header.current_chunk_id.value; |
158 | *has_current_chunk = header.current_chunk_id.is_set; | |
db1da059 | 159 | *creation_time = (time_t) header.creation_time; |
28ab034a | 160 | *session_name_contains_creation_time = header.session_name_contains_creation_time; |
d1bc11c3 | 161 | *id_sessiond = header.session_id; |
f86f6389 JR |
162 | |
163 | ret = 0; | |
164 | ||
165 | error: | |
166 | return ret; | |
167 | } | |
2f21a469 JR |
168 | |
169 | /* | |
170 | * cmd_recv_stream_2_11 allocates path_name and channel_name. | |
171 | */ | |
172 | int cmd_recv_stream_2_11(const struct lttng_buffer_view *payload, | |
28ab034a JG |
173 | char **ret_path_name, |
174 | char **ret_channel_name, | |
175 | uint64_t *tracefile_size, | |
176 | uint64_t *tracefile_count, | |
177 | uint64_t *trace_archive_id) | |
2f21a469 JR |
178 | { |
179 | int ret; | |
180 | struct lttcomm_relayd_add_stream_2_11 header; | |
181 | size_t header_len, received_names_size; | |
182 | struct lttng_buffer_view channel_name_view; | |
183 | struct lttng_buffer_view pathname_view; | |
cd9adb8b JG |
184 | char *path_name = nullptr; |
185 | char *channel_name = nullptr; | |
2f21a469 JR |
186 | |
187 | header_len = sizeof(header); | |
188 | ||
189 | if (payload->size < header_len) { | |
190 | ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes", | |
28ab034a JG |
191 | header_len, |
192 | payload->size); | |
2f21a469 JR |
193 | ret = -1; |
194 | goto error; | |
195 | } | |
196 | memcpy(&header, payload->data, header_len); | |
197 | ||
198 | header.channel_name_len = be32toh(header.channel_name_len); | |
199 | header.pathname_len = be32toh(header.pathname_len); | |
200 | header.tracefile_size = be64toh(header.tracefile_size); | |
201 | header.tracefile_count = be64toh(header.tracefile_count); | |
348a81dc | 202 | header.trace_chunk_id = be64toh(header.trace_chunk_id); |
2f21a469 JR |
203 | |
204 | received_names_size = header.channel_name_len + header.pathname_len; | |
205 | if (payload->size < header_len + received_names_size) { | |
206 | ERR("Unexpected payload size in \"cmd_recv_stream_2_11\": expected >= %zu bytes, got %zu bytes", | |
28ab034a JG |
207 | header_len + received_names_size, |
208 | payload->size); | |
2f21a469 JR |
209 | ret = -1; |
210 | goto error; | |
211 | } | |
212 | ||
213 | /* Validate length against defined constant. */ | |
214 | if (header.channel_name_len > DEFAULT_STREAM_NAME_LEN) { | |
215 | ret = -ENAMETOOLONG; | |
216 | ERR("Channel name too long"); | |
217 | goto error; | |
218 | } | |
219 | if (header.pathname_len > LTTNG_NAME_MAX) { | |
220 | ret = -ENAMETOOLONG; | |
221 | ERR("Pathname too long"); | |
222 | goto error; | |
223 | } | |
224 | ||
225 | /* Validate that names are (NULL terminated. */ | |
28ab034a JG |
226 | channel_name_view = |
227 | lttng_buffer_view_from_view(payload, header_len, header.channel_name_len); | |
3e6e0df2 JG |
228 | if (!lttng_buffer_view_is_valid(&channel_name_view)) { |
229 | ERR("Invalid payload received in \"cmd_recv_stream_2_11\": buffer too short for channel name"); | |
230 | ret = -1; | |
231 | goto error; | |
232 | } | |
2f21a469 JR |
233 | |
234 | if (channel_name_view.data[channel_name_view.size - 1] != '\0') { | |
235 | ERR("cmd_recv_stream_2_11 channel_name is invalid (not NULL terminated)"); | |
236 | ret = -1; | |
237 | goto error; | |
238 | } | |
239 | ||
28ab034a JG |
240 | pathname_view = lttng_buffer_view_from_view( |
241 | payload, header_len + header.channel_name_len, header.pathname_len); | |
3e6e0df2 JG |
242 | if (!lttng_buffer_view_is_valid(&pathname_view)) { |
243 | ERR("Invalid payload received in \"cmd_recv_stream_2_11\": buffer too short for path name"); | |
244 | ret = -1; | |
245 | goto error; | |
246 | } | |
247 | ||
2f21a469 JR |
248 | if (pathname_view.data[pathname_view.size - 1] != '\0') { |
249 | ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)"); | |
250 | ret = -1; | |
251 | goto error; | |
252 | } | |
253 | ||
254 | channel_name = strdup(channel_name_view.data); | |
255 | if (!channel_name) { | |
256 | ret = -errno; | |
257 | PERROR("Channel name allocation"); | |
258 | goto error; | |
259 | } | |
260 | ||
348a81dc | 261 | path_name = strdup(pathname_view.data); |
2f21a469 JR |
262 | if (!path_name) { |
263 | PERROR("Path name allocation"); | |
264 | ret = -ENOMEM; | |
265 | goto error; | |
266 | } | |
267 | ||
268 | *tracefile_size = header.tracefile_size; | |
269 | *tracefile_count = header.tracefile_count; | |
348a81dc | 270 | *trace_archive_id = header.trace_chunk_id; |
2f21a469 JR |
271 | *ret_path_name = path_name; |
272 | *ret_channel_name = channel_name; | |
273 | /* Move ownership to caller */ | |
cd9adb8b JG |
274 | path_name = nullptr; |
275 | channel_name = nullptr; | |
2f21a469 JR |
276 | ret = 0; |
277 | error: | |
278 | free(channel_name); | |
279 | free(path_name); | |
280 | return ret; | |
281 | } |