Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "adb_listeners.h" |
| 18 | |
Dan Albert | bf10647 | 2015-02-20 17:20:09 -0800 | [diff] [blame] | 19 | #include <stdio.h> |
Elliott Hughes | 3b967f5 | 2015-02-24 12:37:13 -0800 | [diff] [blame] | 20 | #include <stdlib.h> |
Dan Albert | bf10647 | 2015-02-20 17:20:09 -0800 | [diff] [blame] | 21 | |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 22 | #include <base/stringprintf.h> |
Elliott Hughes | 381cfa9 | 2015-07-23 17:12:58 -0700 | [diff] [blame] | 23 | #include <cutils/sockets.h> |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 24 | |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 25 | #include "sysdeps.h" |
Dan Albert | 7664901 | 2015-02-24 15:51:19 -0800 | [diff] [blame] | 26 | #include "transport.h" |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 27 | |
| 28 | int gListenAll = 0; /* Not static because it is used in commandline.c. */ |
| 29 | |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 30 | static alistener listener_list = { |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 31 | .next = &listener_list, |
| 32 | .prev = &listener_list, |
| 33 | }; |
| 34 | |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 35 | static void ss_listener_event_func(int _fd, unsigned ev, void *_l) { |
Elliott Hughes | cc65c3b | 2015-11-20 22:01:06 -0800 | [diff] [blame^] | 36 | if (ev & FDE_READ) { |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 37 | struct sockaddr addr; |
Elliott Hughes | cc65c3b | 2015-11-20 22:01:06 -0800 | [diff] [blame^] | 38 | socklen_t alen = sizeof(addr); |
| 39 | int fd = adb_socket_accept(_fd, &addr, &alen); |
| 40 | if (fd < 0) return; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 41 | |
Elliott Hughes | cc65c3b | 2015-11-20 22:01:06 -0800 | [diff] [blame^] | 42 | int rcv_buf_size = CHUNK_SIZE; |
| 43 | adb_setsockopt(fd, SOL_SOCKET, SO_RCVBUF, &rcv_buf_size, sizeof(rcv_buf_size)); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 44 | |
Elliott Hughes | cc65c3b | 2015-11-20 22:01:06 -0800 | [diff] [blame^] | 45 | asocket* s = create_local_socket(fd); |
| 46 | if (s) { |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 47 | connect_to_smartsocket(s); |
| 48 | return; |
| 49 | } |
| 50 | |
| 51 | adb_close(fd); |
| 52 | } |
| 53 | } |
| 54 | |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 55 | static void listener_event_func(int _fd, unsigned ev, void* _l) |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 56 | { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 57 | alistener* listener = reinterpret_cast<alistener*>(_l); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 58 | asocket *s; |
| 59 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 60 | if (ev & FDE_READ) { |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 61 | struct sockaddr addr; |
| 62 | socklen_t alen; |
| 63 | int fd; |
| 64 | |
| 65 | alen = sizeof(addr); |
| 66 | fd = adb_socket_accept(_fd, &addr, &alen); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 67 | if (fd < 0) { |
| 68 | return; |
| 69 | } |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 70 | |
| 71 | s = create_local_socket(fd); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 72 | if (s) { |
| 73 | s->transport = listener->transport; |
| 74 | connect_to_remote(s, listener->connect_to); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 75 | return; |
| 76 | } |
| 77 | |
| 78 | adb_close(fd); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | static void free_listener(alistener* l) |
| 83 | { |
| 84 | if (l->next) { |
| 85 | l->next->prev = l->prev; |
| 86 | l->prev->next = l->next; |
| 87 | l->next = l->prev = l; |
| 88 | } |
| 89 | |
| 90 | // closes the corresponding fd |
| 91 | fdevent_remove(&l->fde); |
| 92 | |
| 93 | if (l->local_name) |
| 94 | free((char*)l->local_name); |
| 95 | |
| 96 | if (l->connect_to) |
| 97 | free((char*)l->connect_to); |
| 98 | |
| 99 | if (l->transport) { |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 100 | l->transport->RemoveDisconnect(&l->disconnect); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 101 | } |
| 102 | free(l); |
| 103 | } |
| 104 | |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 105 | static void listener_disconnect(void* arg, atransport*) { |
| 106 | alistener* listener = reinterpret_cast<alistener*>(arg); |
| 107 | listener->transport = nullptr; |
| 108 | free_listener(listener); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 109 | } |
| 110 | |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 111 | static int local_name_to_fd(const char* name, std::string* error) { |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 112 | if (!strncmp("tcp:", name, 4)) { |
| 113 | int port = atoi(name + 4); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 114 | if (gListenAll > 0) { |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 115 | return network_inaddr_any_server(port, SOCK_STREAM, error); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 116 | } else { |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 117 | return network_loopback_server(port, SOCK_STREAM, error); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 118 | } |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 119 | } |
Elliott Hughes | 095307e | 2015-07-09 10:03:18 -0700 | [diff] [blame] | 120 | #if !defined(_WIN32) // No Unix-domain sockets on Windows. |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 121 | // It's nonsensical to support the "reserved" space on the adb host side |
| 122 | if (!strncmp(name, "local:", 6)) { |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 123 | return network_local_server(name + 6, |
| 124 | ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM, error); |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 125 | } else if (!strncmp(name, "localabstract:", 14)) { |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 126 | return network_local_server(name + 14, |
| 127 | ANDROID_SOCKET_NAMESPACE_ABSTRACT, SOCK_STREAM, error); |
Elliott Hughes | 424af02 | 2015-05-29 17:55:19 -0700 | [diff] [blame] | 128 | } else if (!strncmp(name, "localfilesystem:", 16)) { |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 129 | return network_local_server(name + 16, |
| 130 | ANDROID_SOCKET_NAMESPACE_FILESYSTEM, SOCK_STREAM, error); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | #endif |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 134 | *error = android::base::StringPrintf("unknown local portname '%s'", name); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 135 | return -1; |
| 136 | } |
| 137 | |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 138 | // Write the list of current listeners (network redirections) into a string. |
| 139 | std::string format_listeners() { |
| 140 | std::string result; |
| 141 | for (alistener* l = listener_list.next; l != &listener_list; l = l->next) { |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 142 | // Ignore special listeners like those for *smartsocket* |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 143 | if (l->connect_to[0] == '*') { |
| 144 | continue; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 145 | } |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 146 | // <device-serial> " " <local-name> " " <remote-name> "\n" |
Elliott Hughes | 34c20bb | 2015-07-21 17:09:06 -0700 | [diff] [blame] | 147 | // Entries from "adb reverse" have no serial. |
Elliott Hughes | e67f1f8 | 2015-04-30 17:32:03 -0700 | [diff] [blame] | 148 | android::base::StringAppendF(&result, "%s %s %s\n", |
Elliott Hughes | 34c20bb | 2015-07-21 17:09:06 -0700 | [diff] [blame] | 149 | l->transport->serial ? l->transport->serial : "(reverse)", |
| 150 | l->local_name, l->connect_to); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 151 | } |
| 152 | return result; |
| 153 | } |
| 154 | |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 155 | InstallStatus remove_listener(const char *local_name, atransport* transport) { |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 156 | alistener *l; |
| 157 | |
| 158 | for (l = listener_list.next; l != &listener_list; l = l->next) { |
| 159 | if (!strcmp(local_name, l->local_name)) { |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 160 | free_listener(l); |
Elliott Hughes | 7b50609 | 2015-04-20 08:09:20 -0700 | [diff] [blame] | 161 | return INSTALL_STATUS_OK; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 162 | } |
| 163 | } |
Elliott Hughes | 7b50609 | 2015-04-20 08:09:20 -0700 | [diff] [blame] | 164 | return INSTALL_STATUS_LISTENER_NOT_FOUND; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 165 | } |
| 166 | |
| 167 | void remove_all_listeners(void) |
| 168 | { |
| 169 | alistener *l, *l_next; |
| 170 | for (l = listener_list.next; l != &listener_list; l = l_next) { |
| 171 | l_next = l->next; |
| 172 | // Never remove smart sockets. |
| 173 | if (l->connect_to[0] == '*') |
| 174 | continue; |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 175 | free_listener(l); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 176 | } |
| 177 | } |
| 178 | |
Elliott Hughes | 3bd73c1 | 2015-05-05 13:10:43 -0700 | [diff] [blame] | 179 | InstallStatus install_listener(const std::string& local_name, |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 180 | const char *connect_to, |
| 181 | atransport* transport, |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 182 | int no_rebind, |
| 183 | std::string* error) |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 184 | { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 185 | for (alistener* l = listener_list.next; l != &listener_list; l = l->next) { |
Elliott Hughes | ab52c18 | 2015-05-01 17:04:38 -0700 | [diff] [blame] | 186 | if (local_name == l->local_name) { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 187 | char* cto; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 188 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 189 | /* can't repurpose a smartsocket */ |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 190 | if(l->connect_to[0] == '*') { |
Spencer Low | bf7c605 | 2015-08-11 16:45:32 -0700 | [diff] [blame] | 191 | *error = "cannot repurpose smartsocket"; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 192 | return INSTALL_STATUS_INTERNAL_ERROR; |
| 193 | } |
| 194 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 195 | /* can't repurpose a listener if 'no_rebind' is true */ |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 196 | if (no_rebind) { |
Spencer Low | bf7c605 | 2015-08-11 16:45:32 -0700 | [diff] [blame] | 197 | *error = "cannot rebind"; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 198 | return INSTALL_STATUS_CANNOT_REBIND; |
| 199 | } |
| 200 | |
| 201 | cto = strdup(connect_to); |
| 202 | if(cto == 0) { |
Spencer Low | bf7c605 | 2015-08-11 16:45:32 -0700 | [diff] [blame] | 203 | *error = "cannot duplicate string"; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 204 | return INSTALL_STATUS_INTERNAL_ERROR; |
| 205 | } |
| 206 | |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 207 | free((void*) l->connect_to); |
| 208 | l->connect_to = cto; |
| 209 | if (l->transport != transport) { |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 210 | l->transport->RemoveDisconnect(&l->disconnect); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 211 | l->transport = transport; |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 212 | l->transport->AddDisconnect(&l->disconnect); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 213 | } |
| 214 | return INSTALL_STATUS_OK; |
| 215 | } |
| 216 | } |
| 217 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 218 | alistener* listener = reinterpret_cast<alistener*>( |
| 219 | calloc(1, sizeof(alistener))); |
| 220 | if (listener == nullptr) { |
| 221 | goto nomem; |
| 222 | } |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 223 | |
Elliott Hughes | ab52c18 | 2015-05-01 17:04:38 -0700 | [diff] [blame] | 224 | listener->local_name = strdup(local_name.c_str()); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 225 | if (listener->local_name == nullptr) { |
| 226 | goto nomem; |
| 227 | } |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 228 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 229 | listener->connect_to = strdup(connect_to); |
| 230 | if (listener->connect_to == nullptr) { |
| 231 | goto nomem; |
| 232 | } |
| 233 | |
Spencer Low | 5200c66 | 2015-07-30 23:07:55 -0700 | [diff] [blame] | 234 | listener->fd = local_name_to_fd(listener->local_name, error); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 235 | if (listener->fd < 0) { |
| 236 | free(listener->local_name); |
| 237 | free(listener->connect_to); |
| 238 | free(listener); |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 239 | return INSTALL_STATUS_CANNOT_BIND; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 240 | } |
| 241 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 242 | close_on_exec(listener->fd); |
| 243 | if (!strcmp(listener->connect_to, "*smartsocket*")) { |
| 244 | fdevent_install(&listener->fde, listener->fd, ss_listener_event_func, |
| 245 | listener); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 246 | } else { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 247 | fdevent_install(&listener->fde, listener->fd, listener_event_func, |
| 248 | listener); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 249 | } |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 250 | fdevent_set(&listener->fde, FDE_READ); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 251 | |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 252 | listener->next = &listener_list; |
| 253 | listener->prev = listener_list.prev; |
| 254 | listener->next->prev = listener; |
| 255 | listener->prev->next = listener; |
| 256 | listener->transport = transport; |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 257 | |
| 258 | if (transport) { |
Dan Albert | bac3474 | 2015-02-25 17:51:28 -0800 | [diff] [blame] | 259 | listener->disconnect.opaque = listener; |
| 260 | listener->disconnect.func = listener_disconnect; |
Yabin Cui | b329824 | 2015-08-28 15:09:44 -0700 | [diff] [blame] | 261 | transport->AddDisconnect(&listener->disconnect); |
Dan Albert | e9fca14 | 2015-02-18 18:03:26 -0800 | [diff] [blame] | 262 | } |
| 263 | return INSTALL_STATUS_OK; |
| 264 | |
| 265 | nomem: |
| 266 | fatal("cannot allocate listener"); |
| 267 | return INSTALL_STATUS_INTERNAL_ERROR; |
| 268 | } |