Commit | Line | Data |
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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 | |
9 | #include <assert.h> | |
10 | #include <inttypes.h> | |
11 | ||
12 | #include <common/common.h> | |
13 | #include <common/sessiond-comm/relayd.h> | |
14 | ||
15 | #include <common/compat/endian.h> | |
16 | #include <common/compat/string.h> | |
17 | #include <lttng/constant.h> | |
18 | ||
19 | #include "cmd-2-11.h" | |
2f21a469 | 20 | #include "utils.h" |
f86f6389 JR |
21 | |
22 | int cmd_create_session_2_11(const struct lttng_buffer_view *payload, | |
6fa5fe7c | 23 | char *session_name, char *hostname, char *base_path, |
23c8ff50 | 24 | uint32_t *live_timer, bool *snapshot, |
1e791a74 | 25 | uint64_t *id_sessiond, lttng_uuid sessiond_uuid, |
db1da059 | 26 | bool *has_current_chunk, uint64_t *current_chunk_id, |
46ef2188 MD |
27 | time_t *creation_time, |
28 | bool *session_name_contains_creation_time) | |
f86f6389 JR |
29 | { |
30 | int ret; | |
31 | struct lttcomm_relayd_create_session_2_11 header; | |
6fa5fe7c | 32 | size_t header_len, received_names_size, offset; |
f86f6389 JR |
33 | struct lttng_buffer_view session_name_view; |
34 | struct lttng_buffer_view hostname_view; | |
6fa5fe7c | 35 | struct lttng_buffer_view base_path_view; |
f86f6389 JR |
36 | |
37 | header_len = sizeof(header); | |
38 | ||
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); | |
42 | ret = -1; | |
43 | goto error; | |
44 | } | |
45 | memcpy(&header, payload->data, header_len); | |
46 | ||
47 | header.session_name_len = be32toh(header.session_name_len); | |
48 | header.hostname_len = be32toh(header.hostname_len); | |
6fa5fe7c | 49 | header.base_path_len = be32toh(header.base_path_len); |
f86f6389 | 50 | header.live_timer = be32toh(header.live_timer); |
84fa4db5 JG |
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; | |
db1da059 | 53 | header.creation_time = be64toh(header.creation_time); |
c5cd91c8 | 54 | header.session_id = be64toh(header.session_id); |
f86f6389 | 55 | |
23c8ff50 JG |
56 | lttng_uuid_copy(sessiond_uuid, header.sessiond_uuid); |
57 | ||
6fa5fe7c MD |
58 | received_names_size = header.session_name_len + header.hostname_len + |
59 | header.base_path_len; | |
f86f6389 JR |
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); | |
63 | ret = -1; | |
64 | goto error; | |
65 | } | |
66 | ||
67 | /* Validate length against defined constant. */ | |
68 | if (header.session_name_len > LTTNG_NAME_MAX) { | |
69 | ret = -ENAMETOOLONG; | |
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); | |
71 | goto error; | |
e7f8eff3 JG |
72 | } else if (header.session_name_len == 0) { |
73 | ret = -EINVAL; | |
74 | ERR("Illegal session name length of 0 received"); | |
75 | goto error; | |
f86f6389 JR |
76 | } |
77 | if (header.hostname_len > LTTNG_HOST_NAME_MAX) { | |
78 | ret = -ENAMETOOLONG; | |
79 | ERR("Length of hostname (%" PRIu32 " bytes) received in create_session command exceeds maximum length (%d bytes)", header.hostname_len, LTTNG_HOST_NAME_MAX); | |
80 | goto error; | |
81 | } | |
6fa5fe7c MD |
82 | if (header.base_path_len > LTTNG_PATH_MAX) { |
83 | ret = -ENAMETOOLONG; | |
84 | ERR("Length of base_path (%" PRIu32 " bytes) received in create_session command exceeds maximum length (%d bytes)", header.base_path_len, PATH_MAX); | |
85 | goto error; | |
86 | } | |
f86f6389 | 87 | |
6fa5fe7c MD |
88 | offset = header_len; |
89 | session_name_view = lttng_buffer_view_from_view(payload, offset, | |
f86f6389 | 90 | header.session_name_len); |
6fa5fe7c | 91 | offset += header.session_name_len; |
f86f6389 | 92 | hostname_view = lttng_buffer_view_from_view(payload, |
6fa5fe7c MD |
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); | |
f86f6389 JR |
97 | |
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)"); | |
101 | ret = -1; | |
102 | goto error; | |
103 | } | |
104 | ||
105 | if (hostname_view.data[hostname_view.size - 1] != '\0') { | |
106 | ERR("cmd_create_session_2_11 hostname is invalid (not NULL terminated)"); | |
107 | ret = -1; | |
108 | goto error; | |
109 | } | |
110 | ||
6fa5fe7c MD |
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)"); | |
114 | ret = -1; | |
115 | goto error; | |
116 | } | |
117 | ||
f86f6389 JR |
118 | /* |
119 | * Length and null-termination check are already performed. | |
6fa5fe7c | 120 | * LTTNG_NAME_MAX, LTTNG_HOST_NAME_MAX, and LTTNG_PATH_MAX max sizes are expected. |
f86f6389 JR |
121 | */ |
122 | strcpy(session_name, session_name_view.data); | |
123 | strcpy(hostname, hostname_view.data); | |
6fa5fe7c | 124 | strcpy(base_path, base_path_view.size ? base_path_view.data : ""); |
f86f6389 JR |
125 | |
126 | *live_timer = header.live_timer; | |
127 | *snapshot = !!header.snapshot; | |
84fa4db5 JG |
128 | *current_chunk_id = header.current_chunk_id.value; |
129 | *has_current_chunk = header.current_chunk_id.is_set; | |
db1da059 | 130 | *creation_time = (time_t) header.creation_time; |
46ef2188 MD |
131 | *session_name_contains_creation_time = |
132 | header.session_name_contains_creation_time; | |
c5cd91c8 | 133 | *id_sessiond = header.session_id; |
f86f6389 JR |
134 | |
135 | ret = 0; | |
136 | ||
137 | error: | |
138 | return ret; | |
139 | } | |
2f21a469 JR |
140 | |
141 | /* | |
142 | * cmd_recv_stream_2_11 allocates path_name and channel_name. | |
143 | */ | |
144 | int cmd_recv_stream_2_11(const struct lttng_buffer_view *payload, | |
145 | char **ret_path_name, char **ret_channel_name, | |
0b50e4b3 JG |
146 | uint64_t *tracefile_size, uint64_t *tracefile_count, |
147 | uint64_t *trace_archive_id) | |
2f21a469 JR |
148 | { |
149 | int ret; | |
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; | |
156 | ||
157 | header_len = sizeof(header); | |
158 | ||
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); | |
162 | ret = -1; | |
163 | goto error; | |
164 | } | |
165 | memcpy(&header, payload->data, header_len); | |
166 | ||
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); | |
348a81dc | 171 | header.trace_chunk_id = be64toh(header.trace_chunk_id); |
2f21a469 JR |
172 | |
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); | |
177 | ret = -1; | |
178 | goto error; | |
179 | } | |
180 | ||
181 | /* Validate length against defined constant. */ | |
182 | if (header.channel_name_len > DEFAULT_STREAM_NAME_LEN) { | |
183 | ret = -ENAMETOOLONG; | |
184 | ERR("Channel name too long"); | |
185 | goto error; | |
186 | } | |
187 | if (header.pathname_len > LTTNG_NAME_MAX) { | |
188 | ret = -ENAMETOOLONG; | |
189 | ERR("Pathname too long"); | |
190 | goto error; | |
191 | } | |
192 | ||
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); | |
198 | ||
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)"); | |
201 | ret = -1; | |
202 | goto error; | |
203 | } | |
204 | ||
205 | if (pathname_view.data[pathname_view.size - 1] != '\0') { | |
206 | ERR("cmd_recv_stream_2_11 patname is invalid (not NULL terminated)"); | |
207 | ret = -1; | |
208 | goto error; | |
209 | } | |
210 | ||
211 | channel_name = strdup(channel_name_view.data); | |
212 | if (!channel_name) { | |
213 | ret = -errno; | |
214 | PERROR("Channel name allocation"); | |
215 | goto error; | |
216 | } | |
217 | ||
348a81dc | 218 | path_name = strdup(pathname_view.data); |
2f21a469 JR |
219 | if (!path_name) { |
220 | PERROR("Path name allocation"); | |
221 | ret = -ENOMEM; | |
222 | goto error; | |
223 | } | |
224 | ||
225 | *tracefile_size = header.tracefile_size; | |
226 | *tracefile_count = header.tracefile_count; | |
348a81dc | 227 | *trace_archive_id = header.trace_chunk_id; |
2f21a469 JR |
228 | *ret_path_name = path_name; |
229 | *ret_channel_name = channel_name; | |
230 | /* Move ownership to caller */ | |
231 | path_name = NULL; | |
232 | channel_name = NULL; | |
233 | ret = 0; | |
234 | error: | |
235 | free(channel_name); | |
236 | free(path_name); | |
237 | return ret; | |
238 | } |