The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 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 | |
Yabin Cui | aed3c61 | 2015-09-22 15:52:57 -0700 | [diff] [blame] | 17 | #define TRACE_TAG SOCKETS |
Dan Albert | 3313426 | 2015-03-19 15:21:08 -0700 | [diff] [blame] | 18 | |
| 19 | #include "sysdeps.h" |
| 20 | |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 21 | #include <ctype.h> |
| 22 | #include <errno.h> |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 25 | #include <string.h> |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 26 | #include <unistd.h> |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 27 | |
Spencer Low | 363af56 | 2015-11-07 18:51:54 -0800 | [diff] [blame] | 28 | #include <algorithm> |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 29 | #include <mutex> |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 30 | #include <string> |
| 31 | #include <vector> |
Spencer Low | 363af56 | 2015-11-07 18:51:54 -0800 | [diff] [blame] | 32 | |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 33 | #if !ADB_HOST |
Elliott Hughes | ffdec18 | 2016-09-23 15:40:03 -0700 | [diff] [blame] | 34 | #include <android-base/properties.h> |
Steven Moreland | d73be1b | 2017-04-13 23:48:57 -0700 | [diff] [blame] | 35 | #include <log/log_properties.h> |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 36 | #endif |
Dan Albert | 3313426 | 2015-03-19 15:21:08 -0700 | [diff] [blame] | 37 | |
| 38 | #include "adb.h" |
| 39 | #include "adb_io.h" |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 40 | #include "range.h" |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 41 | #include "transport.h" |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 42 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 43 | static std::recursive_mutex& local_socket_list_lock = *new std::recursive_mutex(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 44 | static unsigned local_socket_next_id = 1; |
| 45 | |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 46 | static auto& local_socket_list = *new std::vector<asocket*>(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 47 | |
| 48 | /* the the list of currently closing local sockets. |
| 49 | ** these have no peer anymore, but still packets to |
| 50 | ** write to their fd. |
| 51 | */ |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 52 | static auto& local_socket_closing_list = *new std::vector<asocket*>(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 53 | |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 54 | // Parse the global list of sockets to find one with id |local_id|. |
| 55 | // If |peer_id| is not 0, also check that it is connected to a peer |
| 56 | // with id |peer_id|. Returns an asocket handle on success, NULL on failure. |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 57 | asocket* find_local_socket(unsigned local_id, unsigned peer_id) { |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 58 | asocket* result = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 59 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 60 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 61 | for (asocket* s : local_socket_list) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 62 | if (s->id != local_id) { |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 63 | continue; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 64 | } |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 65 | if (peer_id == 0 || (s->peer && s->peer->id == peer_id)) { |
André Goddard Rosa | 8182829 | 2010-06-12 11:40:20 -0300 | [diff] [blame] | 66 | result = s; |
André Goddard Rosa | 8182829 | 2010-06-12 11:40:20 -0300 | [diff] [blame] | 67 | } |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 68 | break; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 69 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 70 | |
| 71 | return result; |
| 72 | } |
| 73 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 74 | void install_local_socket(asocket* s) { |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 75 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 76 | |
| 77 | s->id = local_socket_next_id++; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 78 | |
| 79 | // Socket ids should never be 0. |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 80 | if (local_socket_next_id == 0) { |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 81 | fatal("local socket id overflow"); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 82 | } |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 83 | |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 84 | local_socket_list.push_back(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 85 | } |
| 86 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 87 | void remove_socket(asocket* s) { |
Josh Gao | 62c92f0 | 2017-09-13 11:17:33 -0700 | [diff] [blame] | 88 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 89 | for (auto list : { &local_socket_list, &local_socket_closing_list }) { |
| 90 | list->erase(std::remove_if(list->begin(), list->end(), [s](asocket* x) { return x == s; }), |
| 91 | list->end()); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 92 | } |
| 93 | } |
| 94 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 95 | void close_all_sockets(atransport* t) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 96 | /* this is a little gross, but since s->close() *will* modify |
| 97 | ** the list out from under you, your options are limited. |
| 98 | */ |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 99 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 100 | restart: |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 101 | for (asocket* s : local_socket_list) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 102 | if (s->transport == t || (s->peer && s->peer->transport == t)) { |
Josh Gao | 53eb31d | 2016-05-18 10:39:48 -0700 | [diff] [blame] | 103 | s->close(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 104 | goto restart; |
| 105 | } |
| 106 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 107 | } |
| 108 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 109 | static int local_socket_enqueue(asocket* s, std::string data) { |
| 110 | D("LS(%d): enqueue %zu", s->id, data.size()); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 111 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 112 | Range r(std::move(data)); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 113 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 114 | /* if there is already data queue'd, we will receive |
| 115 | ** events when it's time to write. just add this to |
| 116 | ** the tail |
| 117 | */ |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 118 | if (!s->packet_queue.empty()) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 119 | goto enqueue; |
| 120 | } |
| 121 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 122 | /* write as much as we can, until we |
| 123 | ** would block or there is an error/eof |
| 124 | */ |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 125 | while (!r.empty()) { |
| 126 | int rc = adb_write(s->fd, r.data(), r.size()); |
| 127 | if (rc > 0) { |
| 128 | r.drop_front(rc); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 129 | continue; |
| 130 | } |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 131 | |
| 132 | if (rc == 0 || errno != EAGAIN) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 133 | D("LS(%d): not ready, errno=%d: %s", s->id, errno, strerror(errno)); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 134 | s->has_write_error = true; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 135 | s->close(s); |
| 136 | return 1; /* not ready (error) */ |
| 137 | } else { |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 138 | // errno == EAGAIN |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 139 | break; |
| 140 | } |
| 141 | } |
| 142 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 143 | if (r.empty()) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 144 | return 0; /* ready for more data */ |
| 145 | } |
| 146 | |
| 147 | enqueue: |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 148 | /* make sure we are notified when we can drain the queue */ |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 149 | s->packet_queue.push_back(std::move(r)); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 150 | fdevent_add(&s->fde, FDE_WRITE); |
| 151 | |
| 152 | return 1; /* not ready (backlog) */ |
| 153 | } |
| 154 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 155 | static void local_socket_ready(asocket* s) { |
Nanik Tolaram | b627a0e | 2015-02-18 22:53:37 +1100 | [diff] [blame] | 156 | /* far side is ready for data, pay attention to |
| 157 | readable events */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 158 | fdevent_add(&s->fde, FDE_READ); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 159 | } |
| 160 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 161 | // be sure to hold the socket list lock when calling this |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 162 | static void local_socket_destroy(asocket* s) { |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 163 | int exit_on_close = s->exit_on_close; |
| 164 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 165 | D("LS(%d): destroying fde.fd=%d", s->id, s->fde.fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 166 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 167 | /* IMPORTANT: the remove closes the fd |
| 168 | ** that belongs to this socket |
| 169 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 170 | fdevent_remove(&s->fde); |
| 171 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 172 | remove_socket(s); |
| 173 | free(s); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 174 | |
| 175 | if (exit_on_close) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 176 | D("local_socket_destroy: exiting"); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 177 | exit(1); |
| 178 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 179 | } |
| 180 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 181 | static void local_socket_close(asocket* s) { |
| 182 | D("entered local_socket_close. LS(%d) fd=%d", s->id, s->fd); |
| 183 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 184 | if (s->peer) { |
| 185 | D("LS(%d): closing peer. peer->id=%d peer->fd=%d", s->id, s->peer->id, s->peer->fd); |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 186 | /* Note: it's important to call shutdown before disconnecting from |
| 187 | * the peer, this ensures that remote sockets can still get the id |
| 188 | * of the local socket they're connected to, to send a CLOSE() |
| 189 | * protocol event. */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 190 | if (s->peer->shutdown) { |
| 191 | s->peer->shutdown(s->peer); |
| 192 | } |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame] | 193 | s->peer->peer = nullptr; |
| 194 | s->peer->close(s->peer); |
| 195 | s->peer = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 196 | } |
| 197 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 198 | /* If we are already closing, or if there are no |
| 199 | ** pending packets, destroy immediately |
| 200 | */ |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 201 | if (s->closing || s->has_write_error || s->packet_queue.empty()) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 202 | int id = s->id; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 203 | local_socket_destroy(s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 204 | D("LS(%d): closed", id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 205 | return; |
| 206 | } |
| 207 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 208 | /* otherwise, put on the closing list |
| 209 | */ |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 210 | D("LS(%d): closing", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 211 | s->closing = 1; |
| 212 | fdevent_del(&s->fde, FDE_READ); |
| 213 | remove_socket(s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 214 | D("LS(%d): put on socket_closing_list fd=%d", s->id, s->fd); |
Josh Gao | 5e50764 | 2018-01-31 13:15:51 -0800 | [diff] [blame] | 215 | local_socket_closing_list.push_back(s); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 216 | CHECK_EQ(FDE_WRITE, s->fde.state & FDE_WRITE); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 217 | } |
| 218 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 219 | static void local_socket_event_func(int fd, unsigned ev, void* _s) { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 220 | asocket* s = reinterpret_cast<asocket*>(_s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 221 | D("LS(%d): event_func(fd=%d(==%d), ev=%04x)", s->id, s->fd, fd, ev); |
JP Abgrall | 408fa57 | 2011-03-16 15:57:42 -0700 | [diff] [blame] | 222 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 223 | /* put the FDE_WRITE processing before the FDE_READ |
| 224 | ** in order to simplify the code. |
| 225 | */ |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 226 | if (ev & FDE_WRITE) { |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 227 | while (!s->packet_queue.empty()) { |
| 228 | Range& r = s->packet_queue.front(); |
| 229 | while (!r.empty()) { |
| 230 | int rc = adb_write(fd, r.data(), r.size()); |
| 231 | if (rc == -1) { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 232 | /* returning here is ok because FDE_READ will |
| 233 | ** be processed in the next iteration loop |
| 234 | */ |
| 235 | if (errno == EAGAIN) { |
| 236 | return; |
| 237 | } |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 238 | } else if (rc > 0) { |
| 239 | r.drop_front(rc); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 240 | continue; |
| 241 | } |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 242 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 243 | D(" closing after write because rc=%d and errno is %d", rc, errno); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 244 | s->has_write_error = true; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 245 | s->close(s); |
| 246 | return; |
| 247 | } |
| 248 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 249 | if (r.empty()) { |
| 250 | s->packet_queue.pop_front(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 251 | } |
| 252 | } |
| 253 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 254 | /* if we sent the last packet of a closing socket, |
| 255 | ** we can now destroy it. |
| 256 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 257 | if (s->closing) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 258 | D(" closing because 'closing' is set after write"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 259 | s->close(s); |
| 260 | return; |
| 261 | } |
| 262 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 263 | /* no more packets queued, so we can ignore |
| 264 | ** writable events again and tell our peer |
| 265 | ** to resume writing |
| 266 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 267 | fdevent_del(&s->fde, FDE_WRITE); |
| 268 | s->peer->ready(s->peer); |
| 269 | } |
| 270 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 271 | if (ev & FDE_READ) { |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 272 | const size_t max_payload = s->get_max_payload(); |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 273 | std::string data; |
| 274 | data.resize(max_payload); |
| 275 | char* x = &data[0]; |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 276 | size_t avail = max_payload; |
| 277 | int r = 0; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 278 | int is_eof = 0; |
| 279 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 280 | while (avail > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 281 | r = adb_read(fd, x, avail); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 282 | D("LS(%d): post adb_read(fd=%d,...) r=%d (errno=%d) avail=%zu", s->id, s->fd, r, |
| 283 | r < 0 ? errno : 0, avail); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 284 | if (r == -1) { |
| 285 | if (errno == EAGAIN) { |
| 286 | break; |
| 287 | } |
| 288 | } else if (r > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 289 | avail -= r; |
| 290 | x += r; |
| 291 | continue; |
| 292 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 293 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 294 | /* r = 0 or unhandled error */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 295 | is_eof = 1; |
| 296 | break; |
| 297 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 298 | D("LS(%d): fd=%d post avail loop. r=%d is_eof=%d forced_eof=%d", s->id, s->fd, r, is_eof, |
| 299 | s->fde.force_eof); |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 300 | |
| 301 | if (avail != max_payload && s->peer) { |
| 302 | data.resize(max_payload - avail); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 303 | |
Yabin Cui | 0067412 | 2015-08-26 12:27:40 -0700 | [diff] [blame] | 304 | // s->peer->enqueue() may call s->close() and free s, |
| 305 | // so save variables for debug printing below. |
| 306 | unsigned saved_id = s->id; |
| 307 | int saved_fd = s->fd; |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 308 | r = s->peer->enqueue(s->peer, std::move(data)); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 309 | D("LS(%u): fd=%d post peer->enqueue(). r=%d", saved_id, saved_fd, r); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 310 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 311 | if (r < 0) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 312 | /* error return means they closed us as a side-effect |
| 313 | ** and we must return immediately. |
| 314 | ** |
| 315 | ** note that if we still have buffered packets, the |
| 316 | ** socket will be placed on the closing socket list. |
| 317 | ** this handler function will be called again |
| 318 | ** to process FDE_WRITE events. |
| 319 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 320 | return; |
| 321 | } |
| 322 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 323 | if (r > 0) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 324 | /* if the remote cannot accept further events, |
| 325 | ** we disable notification of READs. They'll |
| 326 | ** be enabled again when we get a call to ready() |
| 327 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 328 | fdevent_del(&s->fde, FDE_READ); |
| 329 | } |
| 330 | } |
JP Abgrall | 112445b | 2011-04-12 22:01:58 -0700 | [diff] [blame] | 331 | /* Don't allow a forced eof if data is still there */ |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 332 | if ((s->fde.force_eof && !r) || is_eof) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 333 | D(" closing because is_eof=%d r=%d s->fde.force_eof=%d", is_eof, r, s->fde.force_eof); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 334 | s->close(s); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 335 | return; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 336 | } |
| 337 | } |
| 338 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 339 | if (ev & FDE_ERROR) { |
| 340 | /* this should be caught be the next read or write |
| 341 | ** catching it here means we may skip the last few |
| 342 | ** bytes of readable data. |
| 343 | */ |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 344 | D("LS(%d): FDE_ERROR (fd=%d)", s->id, s->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 345 | return; |
| 346 | } |
| 347 | } |
| 348 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 349 | asocket* create_local_socket(int fd) { |
| 350 | asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(asocket))); |
| 351 | if (s == NULL) { |
| 352 | fatal("cannot allocate socket"); |
| 353 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 354 | s->fd = fd; |
| 355 | s->enqueue = local_socket_enqueue; |
| 356 | s->ready = local_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 357 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 358 | s->close = local_socket_close; |
JP Abgrall | 408fa57 | 2011-03-16 15:57:42 -0700 | [diff] [blame] | 359 | install_local_socket(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 360 | |
| 361 | fdevent_install(&s->fde, fd, local_socket_event_func, s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 362 | D("LS(%d): created (fd=%d)", s->id, s->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 363 | return s; |
| 364 | } |
| 365 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 366 | asocket* create_local_service_socket(const char* name, const atransport* transport) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 367 | #if !ADB_HOST |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 368 | if (!strcmp(name, "jdwp")) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 369 | return create_jdwp_service_socket(); |
| 370 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 371 | if (!strcmp(name, "track-jdwp")) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 372 | return create_jdwp_tracker_service_socket(); |
| 373 | } |
| 374 | #endif |
David Pursell | 0955c66 | 2015-08-31 10:42:13 -0700 | [diff] [blame] | 375 | int fd = service_to_fd(name, transport); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 376 | if (fd < 0) { |
Elliott Hughes | ffc73a3 | 2016-06-15 14:46:56 -0700 | [diff] [blame] | 377 | return nullptr; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 378 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 379 | |
Dan Pasanen | 9885881 | 2014-10-06 12:57:20 -0500 | [diff] [blame] | 380 | asocket* s = create_local_socket(fd); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 381 | D("LS(%d): bound to '%s' via %d", s->id, name, fd); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 382 | |
JP Abgrall | f91259a | 2012-03-30 13:19:11 -0700 | [diff] [blame] | 383 | #if !ADB_HOST |
Mark Salyzyn | 97787a0 | 2016-03-28 15:52:13 -0700 | [diff] [blame] | 384 | if ((!strncmp(name, "root:", 5) && getuid() != 0 && __android_log_is_debuggable()) || |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 385 | (!strncmp(name, "unroot:", 7) && getuid() == 0) || |
| 386 | !strncmp(name, "usb:", 4) || |
| 387 | !strncmp(name, "tcpip:", 6)) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 388 | D("LS(%d): enabling exit_on_close", s->id); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 389 | s->exit_on_close = 1; |
| 390 | } |
JP Abgrall | f91259a | 2012-03-30 13:19:11 -0700 | [diff] [blame] | 391 | #endif |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 392 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 393 | return s; |
| 394 | } |
| 395 | |
| 396 | #if ADB_HOST |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 397 | static asocket* create_host_service_socket(const char* name, const char* serial, |
| 398 | TransportId transport_id) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 399 | asocket* s; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 400 | |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 401 | s = host_service_to_socket(name, serial, transport_id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 402 | |
| 403 | if (s != NULL) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 404 | D("LS(%d) bound to '%s'", s->id, name); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 405 | return s; |
| 406 | } |
| 407 | |
| 408 | return s; |
| 409 | } |
| 410 | #endif /* ADB_HOST */ |
| 411 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 412 | static int remote_socket_enqueue(asocket* s, std::string data) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 413 | D("entered remote_socket_enqueue RS(%d) WRITE fd=%d peer.fd=%d", s->id, s->fd, s->peer->fd); |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 414 | apacket* p = get_apacket(); |
| 415 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 416 | p->msg.command = A_WRTE; |
| 417 | p->msg.arg0 = s->peer->id; |
| 418 | p->msg.arg1 = s->id; |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 419 | p->msg.data_length = data.size(); |
| 420 | |
| 421 | if (data.size() > sizeof(p->data)) { |
| 422 | put_apacket(p); |
| 423 | return -1; |
| 424 | } |
| 425 | |
| 426 | // TODO: Convert apacket::data to a type that we can move into. |
| 427 | memcpy(p->data, data.data(), data.size()); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 428 | send_packet(p, s->transport); |
| 429 | return 1; |
| 430 | } |
| 431 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 432 | static void remote_socket_ready(asocket* s) { |
| 433 | D("entered remote_socket_ready RS(%d) OKAY fd=%d peer.fd=%d", s->id, s->fd, s->peer->fd); |
| 434 | apacket* p = get_apacket(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 435 | p->msg.command = A_OKAY; |
| 436 | p->msg.arg0 = s->peer->id; |
| 437 | p->msg.arg1 = s->id; |
| 438 | send_packet(p, s->transport); |
| 439 | } |
| 440 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 441 | static void remote_socket_shutdown(asocket* s) { |
| 442 | D("entered remote_socket_shutdown RS(%d) CLOSE fd=%d peer->fd=%d", s->id, s->fd, |
| 443 | s->peer ? s->peer->fd : -1); |
| 444 | apacket* p = get_apacket(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 445 | p->msg.command = A_CLSE; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 446 | if (s->peer) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 447 | p->msg.arg0 = s->peer->id; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 448 | } |
| 449 | p->msg.arg1 = s->id; |
| 450 | send_packet(p, s->transport); |
| 451 | } |
| 452 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 453 | static void remote_socket_close(asocket* s) { |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 454 | if (s->peer) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 455 | s->peer->peer = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 456 | D("RS(%d) peer->close()ing peer->id=%d peer->fd=%d", s->id, s->peer->id, s->peer->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 457 | s->peer->close(s->peer); |
| 458 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 459 | D("entered remote_socket_close RS(%d) CLOSE fd=%d peer->fd=%d", s->id, s->fd, |
| 460 | s->peer ? s->peer->fd : -1); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 461 | D("RS(%d): closed", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 462 | free(s); |
| 463 | } |
| 464 | |
Yabin Cui | fd28f32 | 2015-08-27 18:50:04 -0700 | [diff] [blame] | 465 | // Create a remote socket to exchange packets with a remote service through transport |
| 466 | // |t|. Where |id| is the socket id of the corresponding service on the other |
| 467 | // side of the transport (it is allocated by the remote side and _cannot_ be 0). |
| 468 | // Returns a new non-NULL asocket handle. |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 469 | asocket* create_remote_socket(unsigned id, atransport* t) { |
| 470 | if (id == 0) { |
| 471 | fatal("invalid remote socket id (0)"); |
| 472 | } |
Yabin Cui | fd28f32 | 2015-08-27 18:50:04 -0700 | [diff] [blame] | 473 | asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(asocket))); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 474 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 475 | if (s == NULL) { |
| 476 | fatal("cannot allocate socket"); |
| 477 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 478 | s->id = id; |
| 479 | s->enqueue = remote_socket_enqueue; |
| 480 | s->ready = remote_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 481 | s->shutdown = remote_socket_shutdown; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 482 | s->close = remote_socket_close; |
| 483 | s->transport = t; |
| 484 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 485 | D("RS(%d): created", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 486 | return s; |
| 487 | } |
| 488 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 489 | void connect_to_remote(asocket* s, const char* destination) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 490 | D("Connect_to_remote call RS(%d) fd=%d", s->id, s->fd); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 491 | apacket* p = get_apacket(); |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 492 | size_t len = strlen(destination) + 1; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 493 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 494 | if (len > (s->get_max_payload() - 1)) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 495 | fatal("destination oversized"); |
| 496 | } |
| 497 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 498 | D("LS(%d): connect('%s')", s->id, destination); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 499 | p->msg.command = A_OPEN; |
| 500 | p->msg.arg0 = s->id; |
| 501 | p->msg.data_length = len; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 502 | strcpy((char*)p->data, destination); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 503 | send_packet(p, s->transport); |
| 504 | } |
| 505 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 506 | /* this is used by magic sockets to rig local sockets to |
| 507 | send the go-ahead message when they connect */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 508 | static void local_socket_ready_notify(asocket* s) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 509 | s->ready = local_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 510 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 511 | s->close = local_socket_close; |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 512 | SendOkay(s->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 513 | s->ready(s); |
| 514 | } |
| 515 | |
| 516 | /* this is used by magic sockets to rig local sockets to |
| 517 | send the failure message if they are closed before |
| 518 | connected (to avoid closing them without a status message) */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 519 | static void local_socket_close_notify(asocket* s) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 520 | s->ready = local_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 521 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 522 | s->close = local_socket_close; |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 523 | SendFail(s->fd, "closed"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 524 | s->close(s); |
| 525 | } |
| 526 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 527 | static unsigned unhex(const char* s, int len) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 528 | unsigned n = 0, c; |
| 529 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 530 | while (len-- > 0) { |
| 531 | switch ((c = *s++)) { |
| 532 | case '0': |
| 533 | case '1': |
| 534 | case '2': |
| 535 | case '3': |
| 536 | case '4': |
| 537 | case '5': |
| 538 | case '6': |
| 539 | case '7': |
| 540 | case '8': |
| 541 | case '9': |
| 542 | c -= '0'; |
| 543 | break; |
| 544 | case 'a': |
| 545 | case 'b': |
| 546 | case 'c': |
| 547 | case 'd': |
| 548 | case 'e': |
| 549 | case 'f': |
| 550 | c = c - 'a' + 10; |
| 551 | break; |
| 552 | case 'A': |
| 553 | case 'B': |
| 554 | case 'C': |
| 555 | case 'D': |
| 556 | case 'E': |
| 557 | case 'F': |
| 558 | c = c - 'A' + 10; |
| 559 | break; |
| 560 | default: |
| 561 | return 0xffffffff; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 562 | } |
| 563 | |
| 564 | n = (n << 4) | c; |
| 565 | } |
| 566 | |
| 567 | return n; |
| 568 | } |
| 569 | |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 570 | #if ADB_HOST |
| 571 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 572 | namespace internal { |
Scott Anderson | 2ca3e6b | 2012-05-30 18:11:27 -0700 | [diff] [blame] | 573 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 574 | // Returns the position in |service| following the target serial parameter. Serial format can be |
| 575 | // any of: |
| 576 | // * [tcp:|udp:]<serial>[:<port>]:<command> |
| 577 | // * <prefix>:<serial>:<command> |
| 578 | // Where <port> must be a base-10 number and <prefix> may be any of {usb,product,model,device}. |
| 579 | // |
| 580 | // The returned pointer will point to the ':' just before <command>, or nullptr if not found. |
Dan Austin | b4cff49 | 2016-03-28 15:32:37 -0700 | [diff] [blame] | 581 | char* skip_host_serial(char* service) { |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 582 | static const std::vector<std::string>& prefixes = |
| 583 | *(new std::vector<std::string>{"usb:", "product:", "model:", "device:"}); |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 584 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 585 | for (const std::string& prefix : prefixes) { |
| 586 | if (!strncmp(service, prefix.c_str(), prefix.length())) { |
| 587 | return strchr(service + prefix.length(), ':'); |
| 588 | } |
Scott Anderson | 3608d83 | 2012-05-31 12:04:23 -0700 | [diff] [blame] | 589 | } |
| 590 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 591 | // For fastboot compatibility, ignore protocol prefixes. |
| 592 | if (!strncmp(service, "tcp:", 4) || !strncmp(service, "udp:", 4)) { |
| 593 | service += 4; |
| 594 | } |
| 595 | |
David Pursell | 73d55aa | 2016-09-21 12:08:37 -0700 | [diff] [blame] | 596 | // Check for an IPv6 address. `adb connect` creates the serial number from the canonical |
| 597 | // network address so it will always have the [] delimiters. |
| 598 | if (service[0] == '[') { |
| 599 | char* ipv6_end = strchr(service, ']'); |
| 600 | if (ipv6_end != nullptr) { |
| 601 | service = ipv6_end; |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | // The next colon we find must either begin the port field or the command field. |
| 606 | char* colon_ptr = strchr(service, ':'); |
| 607 | if (!colon_ptr) { |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 608 | // No colon in service string. |
| 609 | return nullptr; |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 610 | } |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 611 | |
David Pursell | 73d55aa | 2016-09-21 12:08:37 -0700 | [diff] [blame] | 612 | // If the next field is only decimal digits and ends with another colon, it's a port. |
| 613 | char* serial_end = colon_ptr; |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 614 | if (isdigit(serial_end[1])) { |
| 615 | serial_end++; |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 616 | while (*serial_end && isdigit(*serial_end)) { |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 617 | serial_end++; |
| 618 | } |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 619 | if (*serial_end != ':') { |
David Pursell | 73d55aa | 2016-09-21 12:08:37 -0700 | [diff] [blame] | 620 | // Something other than "<port>:" was found, this must be the command field instead. |
| 621 | serial_end = colon_ptr; |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 622 | } |
| 623 | } |
| 624 | return serial_end; |
| 625 | } |
| 626 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 627 | } // namespace internal |
| 628 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 629 | #endif // ADB_HOST |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 630 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 631 | static int smart_socket_enqueue(asocket* s, std::string data) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 632 | #if ADB_HOST |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 633 | char* service = nullptr; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 634 | char* serial = nullptr; |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 635 | TransportId transport_id = 0; |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 636 | TransportType type = kTransportAny; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 637 | #endif |
| 638 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 639 | D("SS(%d): enqueue %zu", s->id, data.size()); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 640 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 641 | if (s->smart_socket_data.empty()) { |
| 642 | s->smart_socket_data = std::move(data); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 643 | } else { |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 644 | std::copy(data.begin(), data.end(), std::back_inserter(s->smart_socket_data)); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 645 | } |
| 646 | |
Josh Gao | 7e6683c | 2016-01-15 14:35:54 -0800 | [diff] [blame] | 647 | /* don't bother if we can't decode the length */ |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 648 | if (s->smart_socket_data.size() < 4) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 649 | return 0; |
| 650 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 651 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 652 | uint32_t len = unhex(s->smart_socket_data.data(), 4); |
| 653 | if (len == 0 || len > MAX_PAYLOAD) { |
| 654 | D("SS(%d): bad size (%u)", s->id, len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 655 | goto fail; |
| 656 | } |
| 657 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 658 | D("SS(%d): len is %u", s->id, len); |
Josh Gao | 7e6683c | 2016-01-15 14:35:54 -0800 | [diff] [blame] | 659 | /* can't do anything until we have the full header */ |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 660 | if ((len + 4) > s->smart_socket_data.size()) { |
| 661 | D("SS(%d): waiting for %zu more bytes", s->id, len + 4 - s->smart_socket_data.size()); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 662 | return 0; |
| 663 | } |
| 664 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 665 | s->smart_socket_data[len + 4] = 0; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 666 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 667 | D("SS(%d): '%s'", s->id, (char*)(s->smart_socket_data.data() + 4)); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 668 | |
| 669 | #if ADB_HOST |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 670 | service = &s->smart_socket_data[4]; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 671 | if (!strncmp(service, "host-serial:", strlen("host-serial:"))) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 672 | char* serial_end; |
| 673 | service += strlen("host-serial:"); |
| 674 | |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 675 | // serial number should follow "host:" and could be a host:port string. |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 676 | serial_end = internal::skip_host_serial(service); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 677 | if (serial_end) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 678 | *serial_end = 0; // terminate string |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 679 | serial = service; |
| 680 | service = serial_end + 1; |
| 681 | } |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 682 | } else if (!strncmp(service, "host-transport-id:", strlen("host-transport-id:"))) { |
| 683 | service += strlen("host-transport-id:"); |
| 684 | transport_id = strtoll(service, &service, 10); |
| 685 | |
| 686 | if (*service != ':') { |
| 687 | return -1; |
| 688 | } |
| 689 | service++; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 690 | } else if (!strncmp(service, "host-usb:", strlen("host-usb:"))) { |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 691 | type = kTransportUsb; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 692 | service += strlen("host-usb:"); |
| 693 | } else if (!strncmp(service, "host-local:", strlen("host-local:"))) { |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 694 | type = kTransportLocal; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 695 | service += strlen("host-local:"); |
| 696 | } else if (!strncmp(service, "host:", strlen("host:"))) { |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 697 | type = kTransportAny; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 698 | service += strlen("host:"); |
| 699 | } else { |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 700 | service = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | if (service) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 704 | asocket* s2; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 705 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 706 | /* some requests are handled immediately -- in that |
| 707 | ** case the handle_host_request() routine has sent |
| 708 | ** the OKAY or FAIL message and all we have to do |
| 709 | ** is clean up. |
| 710 | */ |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 711 | if (handle_host_request(service, type, serial, transport_id, s->peer->fd, s) == 0) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 712 | /* XXX fail message? */ |
| 713 | D("SS(%d): handled host service '%s'", s->id, service); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 714 | goto fail; |
| 715 | } |
| 716 | if (!strncmp(service, "transport", strlen("transport"))) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 717 | D("SS(%d): okay transport", s->id); |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 718 | s->smart_socket_data.clear(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 719 | return 0; |
| 720 | } |
| 721 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 722 | /* try to find a local service with this name. |
| 723 | ** if no such service exists, we'll fail out |
| 724 | ** and tear down here. |
| 725 | */ |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 726 | s2 = create_host_service_socket(service, serial, transport_id); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 727 | if (s2 == 0) { |
| 728 | D("SS(%d): couldn't create host service '%s'", s->id, service); |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 729 | SendFail(s->peer->fd, "unknown host service"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 730 | goto fail; |
| 731 | } |
| 732 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 733 | /* we've connected to a local host service, |
| 734 | ** so we make our peer back into a regular |
| 735 | ** local socket and bind it to the new local |
| 736 | ** service socket, acknowledge the successful |
| 737 | ** connection, and close this smart socket now |
| 738 | ** that its work is done. |
| 739 | */ |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 740 | SendOkay(s->peer->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 741 | |
| 742 | s->peer->ready = local_socket_ready; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 743 | s->peer->shutdown = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 744 | s->peer->close = local_socket_close; |
| 745 | s->peer->peer = s2; |
| 746 | s2->peer = s->peer; |
| 747 | s->peer = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 748 | D("SS(%d): okay", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 749 | s->close(s); |
| 750 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 751 | /* initial state is "ready" */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 752 | s2->ready(s2); |
| 753 | return 0; |
| 754 | } |
| 755 | #else /* !ADB_HOST */ |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 756 | if (s->transport == nullptr) { |
Elliott Hughes | 7be29c8 | 2015-04-16 22:54:44 -0700 | [diff] [blame] | 757 | std::string error_msg = "unknown failure"; |
Josh Gao | b122b17 | 2017-08-16 16:57:01 -0700 | [diff] [blame] | 758 | s->transport = acquire_one_transport(kTransportAny, nullptr, 0, nullptr, &error_msg); |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 759 | if (s->transport == nullptr) { |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 760 | SendFail(s->peer->fd, error_msg); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 761 | goto fail; |
| 762 | } |
| 763 | } |
| 764 | #endif |
| 765 | |
Josh Gao | 22d2b3e | 2016-10-27 14:01:08 -0700 | [diff] [blame] | 766 | if (!s->transport) { |
| 767 | SendFail(s->peer->fd, "device offline (no transport)"); |
| 768 | goto fail; |
Yabin Cui | b5e1141 | 2017-03-10 16:01:01 -0800 | [diff] [blame] | 769 | } else if (s->transport->GetConnectionState() == kCsOffline) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 770 | /* if there's no remote we fail the connection |
| 771 | ** right here and terminate it |
| 772 | */ |
Josh Gao | 22d2b3e | 2016-10-27 14:01:08 -0700 | [diff] [blame] | 773 | SendFail(s->peer->fd, "device offline (transport offline)"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 774 | goto fail; |
| 775 | } |
| 776 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 777 | /* instrument our peer to pass the success or fail |
| 778 | ** message back once it connects or closes, then |
| 779 | ** detach from it, request the connection, and |
| 780 | ** tear down |
| 781 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 782 | s->peer->ready = local_socket_ready_notify; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 783 | s->peer->shutdown = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 784 | s->peer->close = local_socket_close_notify; |
| 785 | s->peer->peer = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 786 | /* give him our transport and upref it */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 787 | s->peer->transport = s->transport; |
| 788 | |
Josh Gao | 27cb7dc | 2018-02-01 13:17:50 -0800 | [diff] [blame^] | 789 | connect_to_remote(s->peer, s->smart_socket_data.data() + 4); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 790 | s->peer = 0; |
| 791 | s->close(s); |
| 792 | return 1; |
| 793 | |
| 794 | fail: |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 795 | /* we're going to close our peer as a side-effect, so |
| 796 | ** return -1 to signal that state to the local socket |
| 797 | ** who is enqueueing against us |
| 798 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 799 | s->close(s); |
| 800 | return -1; |
| 801 | } |
| 802 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 803 | static void smart_socket_ready(asocket* s) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 804 | D("SS(%d): ready", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 805 | } |
| 806 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 807 | static void smart_socket_close(asocket* s) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 808 | D("SS(%d): closed", s->id); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 809 | if (s->peer) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 810 | s->peer->peer = 0; |
| 811 | s->peer->close(s->peer); |
Tom Marlin | 49f1857 | 2011-05-13 13:24:55 -0500 | [diff] [blame] | 812 | s->peer = 0; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 813 | } |
| 814 | free(s); |
| 815 | } |
| 816 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 817 | static asocket* create_smart_socket(void) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 818 | D("Creating smart socket"); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 819 | asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(asocket))); |
André Goddard Rosa | c419e2a | 2010-06-10 20:48:19 -0300 | [diff] [blame] | 820 | if (s == NULL) fatal("cannot allocate socket"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 821 | s->enqueue = smart_socket_enqueue; |
| 822 | s->ready = smart_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 823 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 824 | s->close = smart_socket_close; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 825 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 826 | D("SS(%d)", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 827 | return s; |
| 828 | } |
| 829 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 830 | void connect_to_smartsocket(asocket* s) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 831 | D("Connecting to smart socket"); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 832 | asocket* ss = create_smart_socket(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 833 | s->peer = ss; |
| 834 | ss->peer = s; |
| 835 | s->ready(s); |
| 836 | } |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 837 | |
| 838 | size_t asocket::get_max_payload() const { |
| 839 | size_t max_payload = MAX_PAYLOAD; |
| 840 | if (transport) { |
| 841 | max_payload = std::min(max_payload, transport->get_max_payload()); |
| 842 | } |
| 843 | if (peer && peer->transport) { |
| 844 | max_payload = std::min(max_payload, peer->transport->get_max_payload()); |
| 845 | } |
| 846 | return max_payload; |
| 847 | } |