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 |
| 34 | #include "cutils/properties.h" |
| 35 | #endif |
Dan Albert | 3313426 | 2015-03-19 15:21:08 -0700 | [diff] [blame] | 36 | |
| 37 | #include "adb.h" |
| 38 | #include "adb_io.h" |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 39 | #include "sysdeps/mutex.h" |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 40 | #include "transport.h" |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 41 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 42 | static void local_socket_close(asocket* s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 43 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 44 | 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] | 45 | static unsigned local_socket_next_id = 1; |
| 46 | |
| 47 | static asocket local_socket_list = { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 48 | .next = &local_socket_list, .prev = &local_socket_list, |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 49 | }; |
| 50 | |
| 51 | /* the the list of currently closing local sockets. |
| 52 | ** these have no peer anymore, but still packets to |
| 53 | ** write to their fd. |
| 54 | */ |
| 55 | static asocket local_socket_closing_list = { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 56 | .next = &local_socket_closing_list, .prev = &local_socket_closing_list, |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 57 | }; |
| 58 | |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 59 | // Parse the global list of sockets to find one with id |local_id|. |
| 60 | // If |peer_id| is not 0, also check that it is connected to a peer |
| 61 | // 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] | 62 | asocket* find_local_socket(unsigned local_id, unsigned peer_id) { |
| 63 | asocket* s; |
| 64 | asocket* result = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 65 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 66 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
André Goddard Rosa | 8182829 | 2010-06-12 11:40:20 -0300 | [diff] [blame] | 67 | for (s = local_socket_list.next; s != &local_socket_list; s = s->next) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 68 | if (s->id != local_id) { |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 69 | continue; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 70 | } |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 71 | if (peer_id == 0 || (s->peer && s->peer->id == peer_id)) { |
André Goddard Rosa | 8182829 | 2010-06-12 11:40:20 -0300 | [diff] [blame] | 72 | result = s; |
André Goddard Rosa | 8182829 | 2010-06-12 11:40:20 -0300 | [diff] [blame] | 73 | } |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 74 | break; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 75 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 76 | |
| 77 | return result; |
| 78 | } |
| 79 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 80 | static void insert_local_socket(asocket* s, asocket* list) { |
| 81 | s->next = list; |
| 82 | s->prev = s->next->prev; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 83 | s->prev->next = s; |
| 84 | s->next->prev = s; |
| 85 | } |
| 86 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 87 | void install_local_socket(asocket* s) { |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 88 | 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] | 89 | |
| 90 | s->id = local_socket_next_id++; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 91 | |
| 92 | // Socket ids should never be 0. |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 93 | if (local_socket_next_id == 0) { |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 94 | fatal("local socket id overflow"); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 95 | } |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 96 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 97 | insert_local_socket(s, &local_socket_list); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 98 | } |
| 99 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 100 | void remove_socket(asocket* s) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 101 | // socket_list_lock should already be held |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 102 | if (s->prev && s->next) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 103 | s->prev->next = s->next; |
| 104 | s->next->prev = s->prev; |
| 105 | s->next = 0; |
| 106 | s->prev = 0; |
| 107 | s->id = 0; |
| 108 | } |
| 109 | } |
| 110 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 111 | void close_all_sockets(atransport* t) { |
| 112 | asocket* s; |
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 | /* this is a little gross, but since s->close() *will* modify |
| 115 | ** the list out from under you, your options are limited. |
| 116 | */ |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 117 | 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] | 118 | restart: |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 119 | for (s = local_socket_list.next; s != &local_socket_list; s = s->next) { |
| 120 | if (s->transport == t || (s->peer && s->peer->transport == t)) { |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 121 | local_socket_close(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 122 | goto restart; |
| 123 | } |
| 124 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 125 | } |
| 126 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 127 | static int local_socket_enqueue(asocket* s, apacket* p) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 128 | D("LS(%d): enqueue %d", s->id, p->len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 129 | |
| 130 | p->ptr = p->data; |
| 131 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 132 | /* if there is already data queue'd, we will receive |
| 133 | ** events when it's time to write. just add this to |
| 134 | ** the tail |
| 135 | */ |
| 136 | if (s->pkt_first) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 137 | goto enqueue; |
| 138 | } |
| 139 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 140 | /* write as much as we can, until we |
| 141 | ** would block or there is an error/eof |
| 142 | */ |
| 143 | while (p->len > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 144 | int r = adb_write(s->fd, p->ptr, p->len); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 145 | if (r > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 146 | p->len -= r; |
| 147 | p->ptr += r; |
| 148 | continue; |
| 149 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 150 | if ((r == 0) || (errno != EAGAIN)) { |
| 151 | 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] | 152 | put_apacket(p); |
| 153 | s->has_write_error = true; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 154 | s->close(s); |
| 155 | return 1; /* not ready (error) */ |
| 156 | } else { |
| 157 | break; |
| 158 | } |
| 159 | } |
| 160 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 161 | if (p->len == 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 162 | put_apacket(p); |
| 163 | return 0; /* ready for more data */ |
| 164 | } |
| 165 | |
| 166 | enqueue: |
| 167 | p->next = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 168 | if (s->pkt_first) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 169 | s->pkt_last->next = p; |
| 170 | } else { |
| 171 | s->pkt_first = p; |
| 172 | } |
| 173 | s->pkt_last = p; |
| 174 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 175 | /* make sure we are notified when we can drain the queue */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 176 | fdevent_add(&s->fde, FDE_WRITE); |
| 177 | |
| 178 | return 1; /* not ready (backlog) */ |
| 179 | } |
| 180 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 181 | static void local_socket_ready(asocket* s) { |
Nanik Tolaram | b627a0e | 2015-02-18 22:53:37 +1100 | [diff] [blame] | 182 | /* far side is ready for data, pay attention to |
| 183 | readable events */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 184 | fdevent_add(&s->fde, FDE_READ); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 185 | } |
| 186 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 187 | // be sure to hold the socket list lock when calling this |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 188 | static void local_socket_destroy(asocket* s) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 189 | apacket *p, *n; |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 190 | int exit_on_close = s->exit_on_close; |
| 191 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 192 | 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] | 193 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 194 | /* IMPORTANT: the remove closes the fd |
| 195 | ** that belongs to this socket |
| 196 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 197 | fdevent_remove(&s->fde); |
| 198 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 199 | /* dispose of any unwritten data */ |
| 200 | for (p = s->pkt_first; p; p = n) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 201 | D("LS(%d): discarding %d bytes", s->id, p->len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 202 | n = p->next; |
| 203 | put_apacket(p); |
| 204 | } |
| 205 | remove_socket(s); |
| 206 | free(s); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 207 | |
| 208 | if (exit_on_close) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 209 | D("local_socket_destroy: exiting"); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 210 | exit(1); |
| 211 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 212 | } |
| 213 | |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 214 | static void local_socket_close(asocket* s) { |
| 215 | D("entered local_socket_close. LS(%d) fd=%d", s->id, s->fd); |
| 216 | std::lock_guard<std::recursive_mutex> lock(local_socket_list_lock); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 217 | if (s->peer) { |
| 218 | 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] | 219 | /* Note: it's important to call shutdown before disconnecting from |
| 220 | * the peer, this ensures that remote sockets can still get the id |
| 221 | * of the local socket they're connected to, to send a CLOSE() |
| 222 | * protocol event. */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 223 | if (s->peer->shutdown) { |
| 224 | s->peer->shutdown(s->peer); |
| 225 | } |
Josh Gao | 9b587de | 2016-05-17 17:46:27 -0700 | [diff] [blame^] | 226 | s->peer->peer = nullptr; |
| 227 | s->peer->close(s->peer); |
| 228 | s->peer = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 229 | } |
| 230 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 231 | /* If we are already closing, or if there are no |
| 232 | ** pending packets, destroy immediately |
| 233 | */ |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 234 | if (s->closing || s->has_write_error || s->pkt_first == NULL) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 235 | int id = s->id; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 236 | local_socket_destroy(s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 237 | D("LS(%d): closed", id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 238 | return; |
| 239 | } |
| 240 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 241 | /* otherwise, put on the closing list |
| 242 | */ |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 243 | D("LS(%d): closing", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 244 | s->closing = 1; |
| 245 | fdevent_del(&s->fde, FDE_READ); |
| 246 | remove_socket(s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 247 | D("LS(%d): put on socket_closing_list fd=%d", s->id, s->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 248 | insert_local_socket(s, &local_socket_closing_list); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 249 | CHECK_EQ(FDE_WRITE, s->fde.state & FDE_WRITE); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 250 | } |
| 251 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 252 | static void local_socket_event_func(int fd, unsigned ev, void* _s) { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 253 | asocket* s = reinterpret_cast<asocket*>(_s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 254 | 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] | 255 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 256 | /* put the FDE_WRITE processing before the FDE_READ |
| 257 | ** in order to simplify the code. |
| 258 | */ |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 259 | if (ev & FDE_WRITE) { |
| 260 | apacket* p; |
| 261 | while ((p = s->pkt_first) != nullptr) { |
| 262 | while (p->len > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 263 | int r = adb_write(fd, p->ptr, p->len); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 264 | if (r == -1) { |
| 265 | /* returning here is ok because FDE_READ will |
| 266 | ** be processed in the next iteration loop |
| 267 | */ |
| 268 | if (errno == EAGAIN) { |
| 269 | return; |
| 270 | } |
| 271 | } else if (r > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 272 | p->ptr += r; |
| 273 | p->len -= r; |
| 274 | continue; |
| 275 | } |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 276 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 277 | D(" closing after write because r=%d and errno is %d", r, errno); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 278 | s->has_write_error = true; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 279 | s->close(s); |
| 280 | return; |
| 281 | } |
| 282 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 283 | if (p->len == 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 284 | s->pkt_first = p->next; |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 285 | if (s->pkt_first == 0) { |
| 286 | s->pkt_last = 0; |
| 287 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 288 | put_apacket(p); |
| 289 | } |
| 290 | } |
| 291 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 292 | /* if we sent the last packet of a closing socket, |
| 293 | ** we can now destroy it. |
| 294 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 295 | if (s->closing) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 296 | D(" closing because 'closing' is set after write"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 297 | s->close(s); |
| 298 | return; |
| 299 | } |
| 300 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 301 | /* no more packets queued, so we can ignore |
| 302 | ** writable events again and tell our peer |
| 303 | ** to resume writing |
| 304 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 305 | fdevent_del(&s->fde, FDE_WRITE); |
| 306 | s->peer->ready(s->peer); |
| 307 | } |
| 308 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 309 | if (ev & FDE_READ) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 310 | apacket* p = get_apacket(); |
| 311 | unsigned char* x = p->data; |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 312 | const size_t max_payload = s->get_max_payload(); |
| 313 | size_t avail = max_payload; |
| 314 | int r = 0; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 315 | int is_eof = 0; |
| 316 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 317 | while (avail > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 318 | r = adb_read(fd, x, avail); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 319 | D("LS(%d): post adb_read(fd=%d,...) r=%d (errno=%d) avail=%zu", s->id, s->fd, r, |
| 320 | r < 0 ? errno : 0, avail); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 321 | if (r == -1) { |
| 322 | if (errno == EAGAIN) { |
| 323 | break; |
| 324 | } |
| 325 | } else if (r > 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 326 | avail -= r; |
| 327 | x += r; |
| 328 | continue; |
| 329 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 330 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 331 | /* r = 0 or unhandled error */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 332 | is_eof = 1; |
| 333 | break; |
| 334 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 335 | D("LS(%d): fd=%d post avail loop. r=%d is_eof=%d forced_eof=%d", s->id, s->fd, r, is_eof, |
| 336 | s->fde.force_eof); |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 337 | if ((avail == max_payload) || (s->peer == 0)) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 338 | put_apacket(p); |
| 339 | } else { |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 340 | p->len = max_payload - avail; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 341 | |
Yabin Cui | 0067412 | 2015-08-26 12:27:40 -0700 | [diff] [blame] | 342 | // s->peer->enqueue() may call s->close() and free s, |
| 343 | // so save variables for debug printing below. |
| 344 | unsigned saved_id = s->id; |
| 345 | int saved_fd = s->fd; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 346 | r = s->peer->enqueue(s->peer, p); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 347 | 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] | 348 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 349 | if (r < 0) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 350 | /* error return means they closed us as a side-effect |
| 351 | ** and we must return immediately. |
| 352 | ** |
| 353 | ** note that if we still have buffered packets, the |
| 354 | ** socket will be placed on the closing socket list. |
| 355 | ** this handler function will be called again |
| 356 | ** to process FDE_WRITE events. |
| 357 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 358 | return; |
| 359 | } |
| 360 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 361 | if (r > 0) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 362 | /* if the remote cannot accept further events, |
| 363 | ** we disable notification of READs. They'll |
| 364 | ** be enabled again when we get a call to ready() |
| 365 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 366 | fdevent_del(&s->fde, FDE_READ); |
| 367 | } |
| 368 | } |
JP Abgrall | 112445b | 2011-04-12 22:01:58 -0700 | [diff] [blame] | 369 | /* Don't allow a forced eof if data is still there */ |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 370 | if ((s->fde.force_eof && !r) || is_eof) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 371 | 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] | 372 | s->close(s); |
Yabin Cui | c1b1f6f | 2015-09-15 16:27:09 -0700 | [diff] [blame] | 373 | return; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 374 | } |
| 375 | } |
| 376 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 377 | if (ev & FDE_ERROR) { |
| 378 | /* this should be caught be the next read or write |
| 379 | ** catching it here means we may skip the last few |
| 380 | ** bytes of readable data. |
| 381 | */ |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 382 | 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] | 383 | return; |
| 384 | } |
| 385 | } |
| 386 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 387 | asocket* create_local_socket(int fd) { |
| 388 | asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(asocket))); |
| 389 | if (s == NULL) { |
| 390 | fatal("cannot allocate socket"); |
| 391 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 392 | s->fd = fd; |
| 393 | s->enqueue = local_socket_enqueue; |
| 394 | s->ready = local_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 395 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 396 | s->close = local_socket_close; |
JP Abgrall | 408fa57 | 2011-03-16 15:57:42 -0700 | [diff] [blame] | 397 | install_local_socket(s); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 398 | |
| 399 | fdevent_install(&s->fde, fd, local_socket_event_func, s); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 400 | 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] | 401 | return s; |
| 402 | } |
| 403 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 404 | 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] | 405 | #if !ADB_HOST |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 406 | if (!strcmp(name, "jdwp")) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 407 | return create_jdwp_service_socket(); |
| 408 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 409 | if (!strcmp(name, "track-jdwp")) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 410 | return create_jdwp_tracker_service_socket(); |
| 411 | } |
| 412 | #endif |
David Pursell | 0955c66 | 2015-08-31 10:42:13 -0700 | [diff] [blame] | 413 | int fd = service_to_fd(name, transport); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 414 | if (fd < 0) { |
| 415 | return 0; |
| 416 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 417 | |
Dan Pasanen | 9885881 | 2014-10-06 12:57:20 -0500 | [diff] [blame] | 418 | asocket* s = create_local_socket(fd); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 419 | D("LS(%d): bound to '%s' via %d", s->id, name, fd); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 420 | |
JP Abgrall | f91259a | 2012-03-30 13:19:11 -0700 | [diff] [blame] | 421 | #if !ADB_HOST |
Dan Pasanen | 9885881 | 2014-10-06 12:57:20 -0500 | [diff] [blame] | 422 | char debug[PROPERTY_VALUE_MAX]; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 423 | if (!strncmp(name, "root:", 5)) { |
jzhuan5 | 1297d22 | 2013-05-24 17:40:15 -0400 | [diff] [blame] | 424 | property_get("ro.debuggable", debug, ""); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 425 | } |
jzhuan5 | 1297d22 | 2013-05-24 17:40:15 -0400 | [diff] [blame] | 426 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 427 | if ((!strncmp(name, "root:", 5) && getuid() != 0 && strcmp(debug, "1") == 0) || |
| 428 | (!strncmp(name, "unroot:", 7) && getuid() == 0) || |
| 429 | !strncmp(name, "usb:", 4) || |
| 430 | !strncmp(name, "tcpip:", 6)) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 431 | D("LS(%d): enabling exit_on_close", s->id); |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 432 | s->exit_on_close = 1; |
| 433 | } |
JP Abgrall | f91259a | 2012-03-30 13:19:11 -0700 | [diff] [blame] | 434 | #endif |
Benoit Goby | f366b36 | 2012-03-16 14:50:07 -0700 | [diff] [blame] | 435 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 436 | return s; |
| 437 | } |
| 438 | |
| 439 | #if ADB_HOST |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 440 | static asocket* create_host_service_socket(const char* name, const char* serial) { |
| 441 | asocket* s; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 442 | |
| 443 | s = host_service_to_socket(name, serial); |
| 444 | |
| 445 | if (s != NULL) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 446 | D("LS(%d) bound to '%s'", s->id, name); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 447 | return s; |
| 448 | } |
| 449 | |
| 450 | return s; |
| 451 | } |
| 452 | #endif /* ADB_HOST */ |
| 453 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 454 | static int remote_socket_enqueue(asocket* s, apacket* p) { |
| 455 | D("entered remote_socket_enqueue RS(%d) WRITE fd=%d peer.fd=%d", s->id, s->fd, s->peer->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 456 | p->msg.command = A_WRTE; |
| 457 | p->msg.arg0 = s->peer->id; |
| 458 | p->msg.arg1 = s->id; |
| 459 | p->msg.data_length = p->len; |
| 460 | send_packet(p, s->transport); |
| 461 | return 1; |
| 462 | } |
| 463 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 464 | static void remote_socket_ready(asocket* s) { |
| 465 | D("entered remote_socket_ready RS(%d) OKAY fd=%d peer.fd=%d", s->id, s->fd, s->peer->fd); |
| 466 | apacket* p = get_apacket(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 467 | p->msg.command = A_OKAY; |
| 468 | p->msg.arg0 = s->peer->id; |
| 469 | p->msg.arg1 = s->id; |
| 470 | send_packet(p, s->transport); |
| 471 | } |
| 472 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 473 | static void remote_socket_shutdown(asocket* s) { |
| 474 | D("entered remote_socket_shutdown RS(%d) CLOSE fd=%d peer->fd=%d", s->id, s->fd, |
| 475 | s->peer ? s->peer->fd : -1); |
| 476 | apacket* p = get_apacket(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 477 | p->msg.command = A_CLSE; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 478 | if (s->peer) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 479 | p->msg.arg0 = s->peer->id; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 480 | } |
| 481 | p->msg.arg1 = s->id; |
| 482 | send_packet(p, s->transport); |
| 483 | } |
| 484 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 485 | static void remote_socket_close(asocket* s) { |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 486 | if (s->peer) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 487 | s->peer->peer = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 488 | 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] | 489 | s->peer->close(s->peer); |
| 490 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 491 | D("entered remote_socket_close RS(%d) CLOSE fd=%d peer->fd=%d", s->id, s->fd, |
| 492 | s->peer ? s->peer->fd : -1); |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 493 | D("RS(%d): closed", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 494 | free(s); |
| 495 | } |
| 496 | |
Yabin Cui | fd28f32 | 2015-08-27 18:50:04 -0700 | [diff] [blame] | 497 | // Create a remote socket to exchange packets with a remote service through transport |
| 498 | // |t|. Where |id| is the socket id of the corresponding service on the other |
| 499 | // side of the transport (it is allocated by the remote side and _cannot_ be 0). |
| 500 | // Returns a new non-NULL asocket handle. |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 501 | asocket* create_remote_socket(unsigned id, atransport* t) { |
| 502 | if (id == 0) { |
| 503 | fatal("invalid remote socket id (0)"); |
| 504 | } |
Yabin Cui | fd28f32 | 2015-08-27 18:50:04 -0700 | [diff] [blame] | 505 | asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(asocket))); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 506 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 507 | if (s == NULL) { |
| 508 | fatal("cannot allocate socket"); |
| 509 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 510 | s->id = id; |
| 511 | s->enqueue = remote_socket_enqueue; |
| 512 | s->ready = remote_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 513 | s->shutdown = remote_socket_shutdown; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 514 | s->close = remote_socket_close; |
| 515 | s->transport = t; |
| 516 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 517 | D("RS(%d): created", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 518 | return s; |
| 519 | } |
| 520 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 521 | void connect_to_remote(asocket* s, const char* destination) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 522 | 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] | 523 | apacket* p = get_apacket(); |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 524 | size_t len = strlen(destination) + 1; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 525 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 526 | if (len > (s->get_max_payload() - 1)) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 527 | fatal("destination oversized"); |
| 528 | } |
| 529 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 530 | D("LS(%d): connect('%s')", s->id, destination); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 531 | p->msg.command = A_OPEN; |
| 532 | p->msg.arg0 = s->id; |
| 533 | p->msg.data_length = len; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 534 | strcpy((char*)p->data, destination); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 535 | send_packet(p, s->transport); |
| 536 | } |
| 537 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 538 | /* this is used by magic sockets to rig local sockets to |
| 539 | send the go-ahead message when they connect */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 540 | static void local_socket_ready_notify(asocket* s) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 541 | s->ready = local_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 542 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 543 | s->close = local_socket_close; |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 544 | SendOkay(s->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 545 | s->ready(s); |
| 546 | } |
| 547 | |
| 548 | /* this is used by magic sockets to rig local sockets to |
| 549 | send the failure message if they are closed before |
| 550 | connected (to avoid closing them without a status message) */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 551 | static void local_socket_close_notify(asocket* s) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 552 | s->ready = local_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 553 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 554 | s->close = local_socket_close; |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 555 | SendFail(s->fd, "closed"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 556 | s->close(s); |
| 557 | } |
| 558 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 559 | static unsigned unhex(unsigned char* s, int len) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 560 | unsigned n = 0, c; |
| 561 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 562 | while (len-- > 0) { |
| 563 | switch ((c = *s++)) { |
| 564 | case '0': |
| 565 | case '1': |
| 566 | case '2': |
| 567 | case '3': |
| 568 | case '4': |
| 569 | case '5': |
| 570 | case '6': |
| 571 | case '7': |
| 572 | case '8': |
| 573 | case '9': |
| 574 | c -= '0'; |
| 575 | break; |
| 576 | case 'a': |
| 577 | case 'b': |
| 578 | case 'c': |
| 579 | case 'd': |
| 580 | case 'e': |
| 581 | case 'f': |
| 582 | c = c - 'a' + 10; |
| 583 | break; |
| 584 | case 'A': |
| 585 | case 'B': |
| 586 | case 'C': |
| 587 | case 'D': |
| 588 | case 'E': |
| 589 | case 'F': |
| 590 | c = c - 'A' + 10; |
| 591 | break; |
| 592 | default: |
| 593 | return 0xffffffff; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | n = (n << 4) | c; |
| 597 | } |
| 598 | |
| 599 | return n; |
| 600 | } |
| 601 | |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 602 | #if ADB_HOST |
| 603 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 604 | namespace internal { |
Scott Anderson | 2ca3e6b | 2012-05-30 18:11:27 -0700 | [diff] [blame] | 605 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 606 | // Returns the position in |service| following the target serial parameter. Serial format can be |
| 607 | // any of: |
| 608 | // * [tcp:|udp:]<serial>[:<port>]:<command> |
| 609 | // * <prefix>:<serial>:<command> |
| 610 | // Where <port> must be a base-10 number and <prefix> may be any of {usb,product,model,device}. |
| 611 | // |
| 612 | // 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] | 613 | char* skip_host_serial(char* service) { |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 614 | static const std::vector<std::string>& prefixes = |
| 615 | *(new std::vector<std::string>{"usb:", "product:", "model:", "device:"}); |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 616 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 617 | for (const std::string& prefix : prefixes) { |
| 618 | if (!strncmp(service, prefix.c_str(), prefix.length())) { |
| 619 | return strchr(service + prefix.length(), ':'); |
| 620 | } |
Scott Anderson | 3608d83 | 2012-05-31 12:04:23 -0700 | [diff] [blame] | 621 | } |
| 622 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 623 | // For fastboot compatibility, ignore protocol prefixes. |
| 624 | if (!strncmp(service, "tcp:", 4) || !strncmp(service, "udp:", 4)) { |
| 625 | service += 4; |
| 626 | } |
| 627 | |
| 628 | char* first_colon = strchr(service, ':'); |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 629 | if (!first_colon) { |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 630 | // No colon in service string. |
| 631 | return nullptr; |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 632 | } |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 633 | |
| 634 | char* serial_end = first_colon; |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 635 | if (isdigit(serial_end[1])) { |
| 636 | serial_end++; |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 637 | while (*serial_end && isdigit(*serial_end)) { |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 638 | serial_end++; |
| 639 | } |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 640 | if (*serial_end != ':') { |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 641 | // Something other than numbers was found, reset the end. |
| 642 | serial_end = first_colon; |
| 643 | } |
| 644 | } |
| 645 | return serial_end; |
| 646 | } |
| 647 | |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 648 | } // namespace internal |
| 649 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 650 | #endif // ADB_HOST |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 651 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 652 | static int smart_socket_enqueue(asocket* s, apacket* p) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 653 | unsigned len; |
| 654 | #if ADB_HOST |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 655 | char* service = nullptr; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 656 | char* serial = nullptr; |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 657 | TransportType type = kTransportAny; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 658 | #endif |
| 659 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 660 | D("SS(%d): enqueue %d", s->id, p->len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 661 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 662 | if (s->pkt_first == 0) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 663 | s->pkt_first = p; |
| 664 | s->pkt_last = p; |
| 665 | } else { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 666 | if ((s->pkt_first->len + p->len) > s->get_max_payload()) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 667 | D("SS(%d): overflow", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 668 | put_apacket(p); |
| 669 | goto fail; |
| 670 | } |
| 671 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 672 | memcpy(s->pkt_first->data + s->pkt_first->len, p->data, p->len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 673 | s->pkt_first->len += p->len; |
| 674 | put_apacket(p); |
| 675 | |
| 676 | p = s->pkt_first; |
| 677 | } |
| 678 | |
Josh Gao | 7e6683c | 2016-01-15 14:35:54 -0800 | [diff] [blame] | 679 | /* don't bother if we can't decode the length */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 680 | if (p->len < 4) { |
| 681 | return 0; |
| 682 | } |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 683 | |
| 684 | len = unhex(p->data, 4); |
Josh Gao | 7e6683c | 2016-01-15 14:35:54 -0800 | [diff] [blame] | 685 | if ((len < 1) || (len > MAX_PAYLOAD_V1)) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 686 | D("SS(%d): bad size (%d)", s->id, len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 687 | goto fail; |
| 688 | } |
| 689 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 690 | D("SS(%d): len is %d", s->id, len); |
Josh Gao | 7e6683c | 2016-01-15 14:35:54 -0800 | [diff] [blame] | 691 | /* can't do anything until we have the full header */ |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 692 | if ((len + 4) > p->len) { |
| 693 | D("SS(%d): waiting for %d more bytes", s->id, len + 4 - p->len); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 694 | return 0; |
| 695 | } |
| 696 | |
| 697 | p->data[len + 4] = 0; |
| 698 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 699 | D("SS(%d): '%s'", s->id, (char*)(p->data + 4)); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 700 | |
| 701 | #if ADB_HOST |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 702 | service = (char*)p->data + 4; |
| 703 | if (!strncmp(service, "host-serial:", strlen("host-serial:"))) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 704 | char* serial_end; |
| 705 | service += strlen("host-serial:"); |
| 706 | |
Terence Haddock | 28e1390 | 2011-03-16 09:43:56 +0100 | [diff] [blame] | 707 | // serial number should follow "host:" and could be a host:port string. |
David Pursell | 3f902aa | 2016-03-01 08:58:26 -0800 | [diff] [blame] | 708 | serial_end = internal::skip_host_serial(service); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 709 | if (serial_end) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 710 | *serial_end = 0; // terminate string |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 711 | serial = service; |
| 712 | service = serial_end + 1; |
| 713 | } |
| 714 | } else if (!strncmp(service, "host-usb:", strlen("host-usb:"))) { |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 715 | type = kTransportUsb; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 716 | service += strlen("host-usb:"); |
| 717 | } else if (!strncmp(service, "host-local:", strlen("host-local:"))) { |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 718 | type = kTransportLocal; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 719 | service += strlen("host-local:"); |
| 720 | } else if (!strncmp(service, "host:", strlen("host:"))) { |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 721 | type = kTransportAny; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 722 | service += strlen("host:"); |
| 723 | } else { |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 724 | service = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 725 | } |
| 726 | |
| 727 | if (service) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 728 | asocket* s2; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 729 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 730 | /* some requests are handled immediately -- in that |
| 731 | ** case the handle_host_request() routine has sent |
| 732 | ** the OKAY or FAIL message and all we have to do |
| 733 | ** is clean up. |
| 734 | */ |
| 735 | if (handle_host_request(service, type, serial, s->peer->fd, s) == 0) { |
| 736 | /* XXX fail message? */ |
| 737 | 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] | 738 | goto fail; |
| 739 | } |
| 740 | if (!strncmp(service, "transport", strlen("transport"))) { |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 741 | D("SS(%d): okay transport", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 742 | p->len = 0; |
| 743 | return 0; |
| 744 | } |
| 745 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 746 | /* try to find a local service with this name. |
| 747 | ** if no such service exists, we'll fail out |
| 748 | ** and tear down here. |
| 749 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 750 | s2 = create_host_service_socket(service, serial); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 751 | if (s2 == 0) { |
| 752 | D("SS(%d): couldn't create host service '%s'", s->id, service); |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 753 | SendFail(s->peer->fd, "unknown host service"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 754 | goto fail; |
| 755 | } |
| 756 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 757 | /* we've connected to a local host service, |
| 758 | ** so we make our peer back into a regular |
| 759 | ** local socket and bind it to the new local |
| 760 | ** service socket, acknowledge the successful |
| 761 | ** connection, and close this smart socket now |
| 762 | ** that its work is done. |
| 763 | */ |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 764 | SendOkay(s->peer->fd); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 765 | |
| 766 | s->peer->ready = local_socket_ready; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 767 | s->peer->shutdown = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 768 | s->peer->close = local_socket_close; |
| 769 | s->peer->peer = s2; |
| 770 | s2->peer = s->peer; |
| 771 | s->peer = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 772 | D("SS(%d): okay", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 773 | s->close(s); |
| 774 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 775 | /* initial state is "ready" */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 776 | s2->ready(s2); |
| 777 | return 0; |
| 778 | } |
| 779 | #else /* !ADB_HOST */ |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 780 | if (s->transport == nullptr) { |
Elliott Hughes | 7be29c8 | 2015-04-16 22:54:44 -0700 | [diff] [blame] | 781 | std::string error_msg = "unknown failure"; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 782 | s->transport = acquire_one_transport(kTransportAny, nullptr, nullptr, &error_msg); |
| 783 | if (s->transport == nullptr) { |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 784 | SendFail(s->peer->fd, error_msg); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 785 | goto fail; |
| 786 | } |
| 787 | } |
| 788 | #endif |
| 789 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 790 | if (!(s->transport) || (s->transport->connection_state == kCsOffline)) { |
| 791 | /* if there's no remote we fail the connection |
| 792 | ** right here and terminate it |
| 793 | */ |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 794 | SendFail(s->peer->fd, "device offline (x)"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 795 | goto fail; |
| 796 | } |
| 797 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 798 | /* instrument our peer to pass the success or fail |
| 799 | ** message back once it connects or closes, then |
| 800 | ** detach from it, request the connection, and |
| 801 | ** tear down |
| 802 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 803 | s->peer->ready = local_socket_ready_notify; |
Elliott Hughes | 8d28e19 | 2015-10-07 14:55:10 -0700 | [diff] [blame] | 804 | s->peer->shutdown = nullptr; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 805 | s->peer->close = local_socket_close_notify; |
| 806 | s->peer->peer = 0; |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 807 | /* give him our transport and upref it */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 808 | s->peer->transport = s->transport; |
| 809 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 810 | connect_to_remote(s->peer, (char*)(p->data + 4)); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 811 | s->peer = 0; |
| 812 | s->close(s); |
| 813 | return 1; |
| 814 | |
| 815 | fail: |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 816 | /* we're going to close our peer as a side-effect, so |
| 817 | ** return -1 to signal that state to the local socket |
| 818 | ** who is enqueueing against us |
| 819 | */ |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 820 | s->close(s); |
| 821 | return -1; |
| 822 | } |
| 823 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 824 | static void smart_socket_ready(asocket* s) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 825 | D("SS(%d): ready", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 826 | } |
| 827 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 828 | static void smart_socket_close(asocket* s) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 829 | D("SS(%d): closed", s->id); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 830 | if (s->pkt_first) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 831 | put_apacket(s->pkt_first); |
| 832 | } |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 833 | if (s->peer) { |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 834 | s->peer->peer = 0; |
| 835 | s->peer->close(s->peer); |
Tom Marlin | 49f1857 | 2011-05-13 13:24:55 -0500 | [diff] [blame] | 836 | s->peer = 0; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 837 | } |
| 838 | free(s); |
| 839 | } |
| 840 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 841 | static asocket* create_smart_socket(void) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 842 | D("Creating smart socket"); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 843 | asocket* s = reinterpret_cast<asocket*>(calloc(1, sizeof(asocket))); |
André Goddard Rosa | c419e2a | 2010-06-10 20:48:19 -0300 | [diff] [blame] | 844 | if (s == NULL) fatal("cannot allocate socket"); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 845 | s->enqueue = smart_socket_enqueue; |
| 846 | s->ready = smart_socket_ready; |
David 'Digit' Turner | 818d641 | 2013-12-13 14:09:44 +0100 | [diff] [blame] | 847 | s->shutdown = NULL; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 848 | s->close = smart_socket_close; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 849 | |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 850 | D("SS(%d)", s->id); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 851 | return s; |
| 852 | } |
| 853 | |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 854 | void connect_to_smartsocket(asocket* s) { |
Yabin Cui | 7a3f8d6 | 2015-09-02 17:44:28 -0700 | [diff] [blame] | 855 | D("Connecting to smart socket"); |
Josh Gao | 52bd852 | 2016-05-17 16:55:06 -0700 | [diff] [blame] | 856 | asocket* ss = create_smart_socket(); |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 857 | s->peer = ss; |
| 858 | ss->peer = s; |
| 859 | s->ready(s); |
| 860 | } |
Tamas Berghammer | 3d2904c | 2015-07-13 19:12:28 +0100 | [diff] [blame] | 861 | |
| 862 | size_t asocket::get_max_payload() const { |
| 863 | size_t max_payload = MAX_PAYLOAD; |
| 864 | if (transport) { |
| 865 | max_payload = std::min(max_payload, transport->get_max_payload()); |
| 866 | } |
| 867 | if (peer && peer->transport) { |
| 868 | max_payload = std::min(max_payload, peer->transport->get_max_payload()); |
| 869 | } |
| 870 | return max_payload; |
| 871 | } |