1 /* 2 * Copyright 2016, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <stdint.h> 20 21 #include "dump_type.h" 22 23 // Sockets in the ANDROID_SOCKET_NAMESPACE_RESERVED namespace. 24 // Both sockets are SOCK_SEQPACKET sockets, so no explicit length field is needed. 25 constexpr char kTombstonedCrashSocketName[] = "tombstoned_crash"; 26 constexpr char kTombstonedJavaTraceSocketName[] = "tombstoned_java_trace"; 27 constexpr char kTombstonedInterceptSocketName[] = "tombstoned_intercept"; 28 29 enum class CrashPacketType : uint8_t { 30 // Initial request from crash_dump. 31 kDumpRequest = 0, 32 33 // Notification of a completed crash dump. 34 // Sent after a dump is completed and the process has been untraced, but 35 // before it has been resumed with SIGCONT. 36 kCompletedDump, 37 38 // Responses to kRequest. 39 // kPerformDump sends along an output fd via cmsg(3). 40 kPerformDump = 128, 41 kAbortDump, 42 }; 43 44 struct DumpRequest { 45 DebuggerdDumpType dump_type; 46 int32_t pid; 47 }; 48 49 // The full packet must always be written, regardless of whether the union is used. 50 struct TombstonedCrashPacket { 51 CrashPacketType packet_type; 52 union { 53 DumpRequest dump_request; 54 } packet; 55 }; 56 57 // Comes with a file descriptor via SCM_RIGHTS. 58 // This packet should be sent before an actual dump happens. 59 struct InterceptRequest { 60 DebuggerdDumpType dump_type; 61 int32_t pid; 62 }; 63 64 enum class InterceptStatus : uint8_t { 65 // Returned when an intercept of a different type has already been 66 // registered (and is active) for a given PID. 67 kFailedAlreadyRegistered, 68 // Returned in all other failure cases. 69 kFailed, 70 kStarted, 71 kRegistered, 72 }; 73 74 // Sent either immediately upon failure, or when the intercept has been used. 75 struct InterceptResponse { 76 InterceptStatus status; 77 char error_message[127]; // always null-terminated 78 }; 79
