1 /*
2  * Copyright (c) 2019 Fastly, Kazuho Oku
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a copy
5  * of this software and associated documentation files (the "Software"), to
6  * deal in the Software without restriction, including without limitation the
7  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
8  * sell copies of the Software, and to permit persons to whom the Software is
9  * furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
20  * IN THE SOFTWARE.
21  *
22  * Below is an example bpftrace script that logs the events in JSON-logging
23  * format.  The script can be invoked like:
24  *
25  * % sudo dtrace -c './cli 127.0.0.1 4433' -s misc/dtrace/dtrace.d
26  */
27 
28 picotls$target:::picotls_new {
29     printf("\n{\"addr\": \"0x%p\", \"event\": \"new\", \"is_server\": %d}", arg0, arg1);
30 }
31 picotls$target:::picotls_free {
32     printf("\n{\"addr\": \"0x%p\", \"event\": \"free\"}", arg0);
33 }
34 picotls$target:::picotls_client_random {
35     printf("\n{\"addr\": \"0x%p\", \"event\": \"client_random\", \"bytes\": \"%s\"}", arg0, copyinstr(arg1));
36 }
37 picotls$target:::picotls_new_secret {
38     printf("\n{\"addr\": \"0x%p\", \"event\": \"new_secret\", \"label\": \"%s\", \"secret\": \"%s\"}", arg0, copyinstr(arg1), copyinstr(arg2));
39 }
40 picotls$target:::picotls_receive_message {
41     printf("\n{\"addr\": \"0x%p\", \"event\": \"receive_message\", \"type\": %d, \"ret\": %d}\n", arg0, arg1, arg4);
42     tracemem(copyin(arg2, arg3), 65535, arg3);
43 }
44