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