Szymon Starzycki | b015b16 | 2013-09-05 14:26:28 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2009-2013, Google Inc. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * * Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * * Redistributions in binary form must reproduce the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer in |
| 12 | * the documentation and/or other materials provided with the |
| 13 | * distribution. |
| 14 | * * Neither the name of Google, Inc. nor the names of its contributors |
| 15 | * may be used to endorse or promote products derived from this |
| 16 | * software without specific prior written permission. |
| 17 | * |
| 18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 25 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 26 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 27 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 28 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 29 | * SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include <stdlib.h> |
| 33 | #include <sys/types.h> |
| 34 | #include <sys/socket.h> |
| 35 | #include <unistd.h> |
| 36 | #include <cutils/sockets.h> |
| 37 | |
| 38 | #include "debug.h" |
| 39 | #include "transport.h" |
| 40 | #include "utils.h" |
| 41 | |
| 42 | |
| 43 | #define container_of(ptr, type, member) \ |
| 44 | ((type*)((char*)(ptr) - offsetof(type, member))) |
| 45 | |
| 46 | #define SOCKET_WORKING 0 |
| 47 | #define SOCKET_STOPPED -1 |
| 48 | |
| 49 | |
| 50 | struct socket_transport { |
| 51 | struct transport transport; |
| 52 | |
| 53 | int fd; |
| 54 | }; |
| 55 | |
| 56 | struct socket_handle { |
| 57 | struct transport_handle handle; |
| 58 | |
| 59 | int fd; |
| 60 | }; |
| 61 | |
| 62 | void socket_close(struct transport_handle *thandle) |
| 63 | { |
| 64 | struct socket_handle * handle = container_of(thandle, struct socket_handle, handle); |
| 65 | close(handle->fd); |
| 66 | } |
| 67 | |
| 68 | struct transport_handle *socket_connect(struct transport *transport) |
| 69 | { |
| 70 | struct socket_handle *handle = calloc(sizeof(struct socket_handle), 1); |
| 71 | struct socket_transport *socket_transport = container_of(transport, struct socket_transport, transport); |
| 72 | struct sockaddr addr; |
| 73 | socklen_t alen = sizeof(addr); |
| 74 | |
| 75 | handle->fd = accept(socket_transport->fd, &addr, &alen); |
| 76 | |
| 77 | if (handle->fd < 0) { |
| 78 | D(WARN, "socket connect error"); |
| 79 | return NULL; |
| 80 | } |
| 81 | |
| 82 | D(DEBUG, "[ socket_thread - registering device ]"); |
| 83 | return &handle->handle; |
| 84 | } |
| 85 | |
| 86 | ssize_t socket_write(struct transport_handle *thandle, const void *data, size_t len) |
| 87 | { |
| 88 | ssize_t ret; |
| 89 | struct socket_handle *handle = container_of(thandle, struct socket_handle, handle); |
| 90 | |
| 91 | D(DEBUG, "about to write (fd=%d, len=%d)", handle->fd, len); |
| 92 | ret = bulk_write(handle->fd, data, len); |
| 93 | if (ret < 0) { |
| 94 | D(ERR, "ERROR: fd = %d, ret = %zd", handle->fd, ret); |
| 95 | return -1; |
| 96 | } |
| 97 | D(DEBUG, "[ socket_write done fd=%d ]", handle->fd); |
| 98 | return ret; |
| 99 | } |
| 100 | |
| 101 | ssize_t socket_read(struct transport_handle *thandle, void *data, size_t len) |
| 102 | { |
| 103 | ssize_t ret; |
| 104 | struct socket_handle *handle = container_of(thandle, struct socket_handle, handle); |
| 105 | |
| 106 | D(DEBUG, "about to read (fd=%d, len=%d)", handle->fd, len); |
| 107 | ret = bulk_read(handle->fd, data, len); |
| 108 | if (ret < 0) { |
| 109 | D(ERR, "ERROR: fd = %d, ret = %zd", handle->fd, ret); |
| 110 | return -1; |
| 111 | } |
| 112 | D(DEBUG, "[ socket_read done fd=%d ret=%zd]", handle->fd, ret); |
| 113 | return ret; |
| 114 | } |
| 115 | |
| 116 | static int listen_socket_init(struct socket_transport *socket_transport) |
| 117 | { |
| 118 | int s = android_get_control_socket("fastbootd"); |
| 119 | |
| 120 | if (s < 0) { |
| 121 | D(WARN, "android_get_control_socket(fastbootd): %s\n", strerror(errno)); |
| 122 | return 0; |
| 123 | } |
| 124 | |
| 125 | if (listen(s, 4) < 0) { |
| 126 | D(WARN, "listen(control socket): %s\n", strerror(errno)); |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | socket_transport->fd = s; |
| 131 | |
| 132 | return 1; |
| 133 | } |
| 134 | |
| 135 | |
| 136 | int transport_socket_init() |
| 137 | { |
| 138 | struct socket_transport *socket_transport = malloc(sizeof(struct socket_transport)); |
Szymon Starzycki | 8fa2f34 | 2013-10-03 11:06:45 -0700 | [diff] [blame] | 139 | |
Szymon Starzycki | b015b16 | 2013-09-05 14:26:28 -0700 | [diff] [blame] | 140 | socket_transport->transport.connect = socket_connect; |
| 141 | socket_transport->transport.close = socket_close; |
| 142 | socket_transport->transport.read = socket_read; |
| 143 | socket_transport->transport.write = socket_write; |
Szymon Starzycki | 8fa2f34 | 2013-10-03 11:06:45 -0700 | [diff] [blame] | 144 | |
Szymon Starzycki | b015b16 | 2013-09-05 14:26:28 -0700 | [diff] [blame] | 145 | if (!listen_socket_init(socket_transport)) { |
| 146 | D(ERR, "socket transport init failed"); |
| 147 | free(socket_transport); |
| 148 | return 0; |
| 149 | } |
| 150 | |
| 151 | transport_register(&socket_transport->transport); |
| 152 | return 1; |
| 153 | } |
| 154 | |