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js/src/devtools/sharkctl.cpp@6474c204b198 (annotated)

js/src/devtools/sharkctl.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 06:09:35 +0100
changeset 0
6474c204b198
permissions
-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0 1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0 2 * vim: set ts=8 sts=4 et sw=4 tw=99:
michael@0 3 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 4 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 6
michael@0 7 #ifdef __APPLE__
michael@0 8
michael@0 9 #include "sharkctl.h"
michael@0 10 #include <stddef.h>
michael@0 11 #include <stdio.h>
michael@0 12 #include <stdlib.h>
michael@0 13 #include <unistd.h>
michael@0 14
michael@0 15 #include "jsutil.h"
michael@0 16
michael@0 17 #define SHARK_MSG_ACQUIRE 0x29a
michael@0 18 #define SHARK_MSG_RELEASE 0x29b
michael@0 19 #define SHARK_MSG_STOP 0x29c
michael@0 20 #define SHARK_MSG_START 0x29d
michael@0 21
michael@0 22 #define RECV_SIZEOF(ty) offsetof(ty, out)
michael@0 23
michael@0 24 // Private API in libSystem.dylib
michael@0 25 extern "C" void bootstrap_look_up(mach_port_t special_port, const char *name,
michael@0 26 mach_port_t *dest_port);
michael@0 27
michael@0 28 struct chud_client_acquire_msg {
michael@0 29 mach_msg_header_t hdr;
michael@0 30 uint32_t unk0; // always 0
michael@0 31 uint32_t unk1; // always 1
michael@0 32 uint32_t pid;
michael@0 33 uint32_t out[2];
michael@0 34 };
michael@0 35
michael@0 36 struct chud_client_start_msg {
michael@0 37 mach_msg_header_t hdr;
michael@0 38 uint32_t unk0; // always 1
michael@0 39 uint32_t name0;
michael@0 40 uint32_t arg2; // always 6
michael@0 41 uint8_t unk1; // always 0
michael@0 42 uint8_t unk2; // always 1
michael@0 43 uint8_t unk3; // uninitialized
michael@0 44 uint8_t unk4; // always 1
michael@0 45 uint32_t unk5; // always 0
michael@0 46 uint32_t unk6; // always 1
michael@0 47 uint32_t name1; // same as name0
michael@0 48 };
michael@0 49
michael@0 50 struct chud_client_stop_msg {
michael@0 51 mach_msg_header_t hdr;
michael@0 52 uint32_t out[5];
michael@0 53 };
michael@0 54
michael@0 55 struct chud_client_release_msg {
michael@0 56 mach_msg_header_t hdr;
michael@0 57 uint32_t unk0; // always 0
michael@0 58 uint32_t unk1; // always 1
michael@0 59 uint32_t pid;
michael@0 60 uint32_t out[2];
michael@0 61 };
michael@0 62
michael@0 63 static mach_port_t
michael@0 64 CreatePort(void)
michael@0 65 {
michael@0 66 mach_port_t bootstrap_port, shark_port = 0;
michael@0 67 task_get_special_port(mach_task_self(), TASK_BOOTSTRAP_PORT,
michael@0 68 &bootstrap_port);
michael@0 69 bootstrap_look_up(bootstrap_port, "CHUD_IPC", &shark_port);
michael@0 70 return shark_port;
michael@0 71 }
michael@0 72
michael@0 73 static mach_msg_return_t
michael@0 74 Connect(mach_port_t shark_port)
michael@0 75 {
michael@0 76 mach_port_t reply_port = mig_get_reply_port();
michael@0 77
michael@0 78 struct chud_client_acquire_msg msg;
michael@0 79 msg.hdr.msgh_bits = 0x1513;
michael@0 80 msg.hdr.msgh_size = sizeof(mach_msg_header_t);
michael@0 81 msg.hdr.msgh_remote_port = shark_port;
michael@0 82 msg.hdr.msgh_local_port = reply_port;
michael@0 83 msg.hdr.msgh_reserved = 0;
michael@0 84 msg.hdr.msgh_id = SHARK_MSG_ACQUIRE;
michael@0 85 msg.unk0 = 0;
michael@0 86 msg.unk1 = 1;
michael@0 87 msg.pid = getpid();
michael@0 88
michael@0 89 JS_ASSERT(RECV_SIZEOF(struct chud_client_acquire_msg) == 0x24);
michael@0 90 JS_ASSERT(sizeof(msg) == 0x2c);
michael@0 91 mach_msg_return_t result = mach_msg(&msg.hdr, MACH_SEND_MSG | MACH_RCV_MSG,
michael@0 92 RECV_SIZEOF(struct chud_client_acquire_msg),
michael@0 93 sizeof(msg), reply_port, 0, 0);
michael@0 94 mig_dealloc_reply_port(reply_port);
michael@0 95 return result;
michael@0 96 }
michael@0 97
michael@0 98 static mach_msg_return_t
michael@0 99 Start(mach_port_t shark_port, uint32_t name)
michael@0 100 {
michael@0 101 mach_port_t reply_port = mig_get_reply_port();
michael@0 102
michael@0 103 struct chud_client_start_msg msg;
michael@0 104 msg.hdr.msgh_bits = 0x80001513;
michael@0 105 msg.hdr.msgh_size = sizeof(mach_msg_header_t);
michael@0 106 msg.hdr.msgh_remote_port = shark_port;
michael@0 107 msg.hdr.msgh_local_port = reply_port;
michael@0 108 msg.hdr.msgh_reserved = 0;
michael@0 109 msg.hdr.msgh_id = SHARK_MSG_START;
michael@0 110 msg.unk0 = 1;
michael@0 111 msg.name0 = name;
michael@0 112 msg.arg2 = 6;
michael@0 113 msg.unk1 = 0;
michael@0 114 msg.unk2 = 1;
michael@0 115 msg.unk3 = 0;
michael@0 116 msg.unk4 = 1;
michael@0 117 msg.unk5 = 0;
michael@0 118 msg.unk6 = 1;
michael@0 119 msg.name1 = name;
michael@0 120
michael@0 121 JS_ASSERT(sizeof(msg) == 0x34);
michael@0 122 mach_msg_return_t result = mach_msg(&msg.hdr, MACH_SEND_MSG | MACH_RCV_MSG,
michael@0 123 sizeof(msg), 0x30, reply_port, 0, 0);
michael@0 124 mig_dealloc_reply_port(reply_port);
michael@0 125 return result;
michael@0 126 }
michael@0 127
michael@0 128 mach_msg_return_t
michael@0 129 Stop(mach_port_t shark_port)
michael@0 130 {
michael@0 131 mach_port_t reply_port = mig_get_reply_port();
michael@0 132
michael@0 133 struct chud_client_stop_msg msg;
michael@0 134 msg.hdr.msgh_bits = 0x1513;
michael@0 135 msg.hdr.msgh_size = sizeof(mach_msg_header_t);
michael@0 136 msg.hdr.msgh_remote_port = shark_port;
michael@0 137 msg.hdr.msgh_local_port = reply_port;
michael@0 138 msg.hdr.msgh_reserved = 0;
michael@0 139 msg.hdr.msgh_id = SHARK_MSG_STOP;
michael@0 140
michael@0 141 JS_ASSERT(RECV_SIZEOF(struct chud_client_stop_msg) == 0x18);
michael@0 142 JS_ASSERT(sizeof(msg) == 0x2c);
michael@0 143 mach_msg_return_t result = mach_msg(&msg.hdr, MACH_SEND_MSG | MACH_RCV_MSG,
michael@0 144 RECV_SIZEOF(struct chud_client_stop_msg),
michael@0 145 sizeof(msg), reply_port, 0, 0);
michael@0 146 mig_dealloc_reply_port(reply_port);
michael@0 147 return result;
michael@0 148 }
michael@0 149
michael@0 150 static mach_msg_return_t
michael@0 151 Disconnect(mach_port_t shark_port)
michael@0 152 {
michael@0 153 mach_port_t reply_port = mig_get_reply_port();
michael@0 154
michael@0 155 struct chud_client_release_msg msg;
michael@0 156 msg.hdr.msgh_bits = 0x1513;
michael@0 157 msg.hdr.msgh_size = sizeof(mach_msg_header_t);
michael@0 158 msg.hdr.msgh_remote_port = shark_port;
michael@0 159 msg.hdr.msgh_local_port = reply_port;
michael@0 160 msg.hdr.msgh_reserved = 0;
michael@0 161 msg.hdr.msgh_id = SHARK_MSG_RELEASE;
michael@0 162 msg.unk0 = 0;
michael@0 163 msg.unk1 = 1;
michael@0 164 msg.pid = getpid();
michael@0 165
michael@0 166 JS_ASSERT(RECV_SIZEOF(struct chud_client_release_msg) == 0x24);
michael@0 167 JS_ASSERT(sizeof(msg) == 0x2c);
michael@0 168 mach_msg_return_t result = mach_msg(&msg.hdr, MACH_SEND_MSG | MACH_RCV_MSG,
michael@0 169 RECV_SIZEOF(struct chud_client_release_msg),
michael@0 170 sizeof(msg), reply_port, 0, 0);
michael@0 171 mig_dealloc_reply_port(reply_port);
michael@0 172 return result;
michael@0 173 }
michael@0 174
michael@0 175 static mach_port_t shark_port = 0;
michael@0 176 static bool connected = false;
michael@0 177 static bool running = false;
michael@0 178
michael@0 179 namespace Shark {
michael@0 180
michael@0 181 bool
michael@0 182 Start()
michael@0 183 {
michael@0 184 if (!shark_port && !(shark_port = CreatePort()))
michael@0 185 return false;
michael@0 186 if (!connected && Connect(shark_port))
michael@0 187 return false;
michael@0 188 connected = true;
michael@0 189 if (!running && ::Start(shark_port, 0xdeadbeef))
michael@0 190 return false;
michael@0 191 return running = true;
michael@0 192 }
michael@0 193
michael@0 194 void
michael@0 195 Stop()
michael@0 196 {
michael@0 197 if (!shark_port || !connected)
michael@0 198 return;
michael@0 199 ::Stop(shark_port);
michael@0 200 running = false;
michael@0 201 Disconnect(shark_port);
michael@0 202 connected = false;
michael@0 203 }
michael@0 204
michael@0 205 }
michael@0 206
michael@0 207 #endif

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