Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 1 | /* Copyright 1999 Peter Schlaile. |
| 2 | * Copyright 1999-2002,2006,2007,2009 Alain Knaff. |
| 3 | * This file is part of mtools. |
| 4 | * |
| 5 | * Mtools is free software: you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation, either version 3 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * Mtools is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with Mtools. If not, see <http://www.gnu.org/licenses/>. |
| 17 | * |
| 18 | * Small install-test utility to check if a floppyd-server is running on the |
| 19 | * X-Server-Host. |
| 20 | * |
| 21 | * written by: |
| 22 | * |
| 23 | * Peter Schlaile |
| 24 | * |
| 25 | * udbz@rz.uni-karlsruhe.de |
| 26 | * |
| 27 | */ |
| 28 | |
| 29 | #include "sysincludes.h" |
| 30 | #include "stream.h" |
| 31 | #include "mtools.h" |
| 32 | #include "msdos.h" |
| 33 | #include "scsi.h" |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 34 | #include "floppyd_io.h" |
| 35 | |
| 36 | #ifdef USE_FLOPPYD |
| 37 | #include <sys/socket.h> |
| 38 | #include <arpa/inet.h> |
| 39 | #include <netdb.h> |
| 40 | |
| 41 | /* ######################################################################## */ |
| 42 | |
| 43 | static const char* AuthErrors[] = { |
| 44 | "Auth success!", |
| 45 | "Auth failed: Packet oversized!", |
| 46 | "Auth failed: X-Cookie doesn't match!", |
| 47 | "Auth failed: Wrong transmission protocol version!", |
| 48 | "Auth failed: Device locked!" |
| 49 | }; |
| 50 | |
| 51 | #include "byte_dword.h" |
| 52 | #include "read_dword.h" |
| 53 | |
| 54 | static int write_dword(int handle, Dword parm) |
| 55 | { |
| 56 | Byte val[4]; |
| 57 | |
| 58 | dword2byte(parm, val); |
| 59 | |
| 60 | if(write(handle, val, 4) < 4) |
| 61 | return -1; |
| 62 | return 0; |
| 63 | } |
| 64 | |
| 65 | |
| 66 | /* ######################################################################## */ |
| 67 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 68 | static uint32_t authenticate_to_floppyd(char fullauth, int sock, char *display, |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 69 | uint32_t protoversion) |
| 70 | { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 71 | uint32_t filelen=0; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 72 | Byte buf[16]; |
| 73 | const char *command[] = { "xauth", "xauth", "extract", "-", 0, 0 }; |
| 74 | char *xcookie = NULL; |
| 75 | Dword errcode; |
| 76 | uint32_t bytesRead; |
| 77 | uint32_t cap=0; |
| 78 | |
| 79 | if (fullauth) { |
| 80 | command[4] = display; |
| 81 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 82 | filelen=(uint32_t)strlen(display); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 83 | filelen += 100; |
| 84 | |
| 85 | xcookie = (char *) safe_malloc(filelen+4); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 86 | filelen = (uint32_t) safePopenOut(command, xcookie+4, filelen); |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 87 | if(filelen < 1) |
| 88 | return AUTH_AUTHFAILED; |
| 89 | } |
| 90 | dword2byte(4,buf); |
| 91 | dword2byte(protoversion,buf+4); |
| 92 | if(write(sock, buf, 8) < 8) |
| 93 | return AUTH_IO_ERROR; |
| 94 | |
| 95 | bytesRead = read_dword(sock); |
| 96 | |
| 97 | if (bytesRead != 4 && bytesRead != 12) { |
| 98 | return AUTH_WRONGVERSION; |
| 99 | } |
| 100 | |
| 101 | |
| 102 | errcode = read_dword(sock); |
| 103 | |
| 104 | if (errcode != AUTH_SUCCESS) { |
| 105 | return errcode; |
| 106 | } |
| 107 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 108 | protoversion = FLOPPYD_PROTOCOL_VERSION_OLD; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 109 | if(bytesRead >= 12) { |
| 110 | protoversion = read_dword(sock); |
| 111 | cap = read_dword(sock); |
| 112 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 113 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 114 | fprintf(stderr, "Protocol Version=%d\n", protoversion); |
| 115 | if(protoversion >= FLOPPYD_PROTOCOL_VERSION) { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 116 | fprintf(stderr, "Capabilities:%s%s\n", |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 117 | (cap & FLOPPYD_CAP_EXPLICIT_OPEN) ? " ExplicitOpen" : "", |
| 118 | (cap & FLOPPYD_CAP_LARGE_SEEK) ? " LargeFiles" : ""); |
| 119 | } |
| 120 | |
| 121 | if (fullauth) { |
| 122 | dword2byte(filelen, (Byte *) xcookie); |
| 123 | if(write(sock, xcookie, filelen+4) < (ssize_t)(filelen+4)) |
| 124 | return AUTH_IO_ERROR; |
| 125 | |
| 126 | if (read_dword(sock) != 4) { |
| 127 | return AUTH_PACKETOVERSIZE; |
| 128 | } |
| 129 | |
| 130 | errcode = read_dword(sock); |
| 131 | } |
| 132 | |
| 133 | return errcode; |
| 134 | |
| 135 | } |
| 136 | |
| 137 | |
| 138 | /* ######################################################################## */ |
| 139 | |
| 140 | static int get_host_and_port(const char* name, char** hostname, char **display, |
| 141 | uint16_t* port) |
| 142 | { |
| 143 | char* newname = strdup(name); |
| 144 | char* p; |
| 145 | char* p2; |
| 146 | |
| 147 | p = newname; |
| 148 | while (*p != '/' && *p) p++; |
| 149 | p2 = p; |
| 150 | if (*p) p++; |
| 151 | *p2 = 0; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 152 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 153 | *port = atou16(p); |
| 154 | if (*port == 0) { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 155 | *port = FLOPPYD_DEFAULT_PORT; |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 156 | } |
| 157 | |
| 158 | *display = strdup(newname); |
| 159 | |
| 160 | p = newname; |
| 161 | while (*p != ':' && *p) p++; |
| 162 | p2 = p; |
| 163 | if (*p) p++; |
| 164 | *p2 = 0; |
| 165 | |
| 166 | *port += atoi(p); /* add display number to the port */ |
| 167 | |
| 168 | if (!*newname || strcmp(newname, "unix") == 0) { |
| 169 | free(newname); |
| 170 | newname = strdup("localhost"); |
| 171 | } |
| 172 | |
| 173 | *hostname = newname; |
| 174 | return 1; |
| 175 | } |
| 176 | |
| 177 | /* |
| 178 | * * Return the IP address of the specified host. |
| 179 | * */ |
| 180 | static in_addr_t getipaddress(char *ipaddr) |
| 181 | { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 182 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 183 | struct hostent *host; |
| 184 | in_addr_t ip; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 185 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 186 | if (((ip = inet_addr(ipaddr)) == INADDR_NONE) && |
| 187 | (strcmp(ipaddr, "255.255.255.255") != 0)) { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 188 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 189 | if ((host = gethostbyname(ipaddr)) != NULL) { |
| 190 | memcpy(&ip, host->h_addr, sizeof(ip)); |
| 191 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 192 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 193 | endhostent(); |
| 194 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 195 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 196 | #ifdef DEBUG |
| 197 | fprintf(stderr, "IP lookup %s -> 0x%08lx\n", ipaddr, ip); |
| 198 | #endif |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 199 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 200 | return (ip); |
| 201 | } |
| 202 | |
| 203 | /* |
| 204 | * * Connect to the floppyd server. |
| 205 | * */ |
| 206 | static int connect_to_server(in_addr_t ip, uint16_t port) |
| 207 | { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 208 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 209 | struct sockaddr_in addr; |
| 210 | int sock; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 211 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 212 | /* |
| 213 | * Allocate a socket. |
| 214 | */ |
| 215 | if ((sock = socket(AF_INET, SOCK_STREAM, 0)) < 0) { |
| 216 | return (-1); |
| 217 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 218 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 219 | /* |
| 220 | * Set the address to connect to. |
| 221 | */ |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 222 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 223 | addr.sin_family = AF_INET; |
| 224 | addr.sin_port = htons(port); |
| 225 | addr.sin_addr.s_addr = ip; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 226 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 227 | /* |
| 228 | * Connect our socket to the above address. |
| 229 | */ |
| 230 | if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) < 0) { |
| 231 | return (-1); |
| 232 | } |
| 233 | |
| 234 | /* |
| 235 | * Set the keepalive socket option to on. |
| 236 | */ |
| 237 | { |
| 238 | int on = 1; |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 239 | setsockopt(STDIN_FILENO, SOL_SOCKET, SO_KEEPALIVE, |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 240 | (char *)&on, sizeof(on)); |
| 241 | |
| 242 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 243 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 244 | return (sock); |
| 245 | } |
| 246 | |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 247 | int main (int argc, char** argv) |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 248 | { |
| 249 | char* hostname; |
| 250 | char* display; |
| 251 | char* name; |
| 252 | uint16_t port; |
| 253 | int sock; |
| 254 | uint32_t reply; |
| 255 | int rval; |
| 256 | uint32_t protoversion; |
| 257 | char fullauth = 0; |
| 258 | Byte opcode = OP_CLOSE; |
| 259 | |
| 260 | if (argc < 2) { |
| 261 | puts("Usage: floppyd_installtest [-f] Connect-String\n" |
| 262 | "-f\tDo full X-Cookie-Authentication"); |
| 263 | return -1; |
| 264 | } |
| 265 | |
| 266 | name = argv[1]; |
| 267 | if (strcmp(name, "-f") == 0) { |
| 268 | fullauth = 1; |
| 269 | name = argv[2]; |
| 270 | } |
| 271 | |
| 272 | rval = get_host_and_port(name, &hostname, &display, &port); |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 273 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 274 | if (!rval) return -1; |
| 275 | |
| 276 | sock = connect_to_server(getipaddress(hostname), port); |
| 277 | |
| 278 | if (sock == -1) { |
| 279 | fprintf(stderr, |
| 280 | "Can't connect to floppyd server on %s, port %i!\n", |
| 281 | hostname, port); |
| 282 | return -1; |
| 283 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 284 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 285 | protoversion = FLOPPYD_PROTOCOL_VERSION; |
| 286 | while(1) { |
| 287 | reply = authenticate_to_floppyd(fullauth, sock, display, |
| 288 | protoversion); |
| 289 | if(protoversion == FLOPPYD_PROTOCOL_VERSION_OLD) |
| 290 | break; |
| 291 | if(reply == AUTH_WRONGVERSION) { |
| 292 | /* fall back on old version */ |
| 293 | protoversion = FLOPPYD_PROTOCOL_VERSION_OLD; |
| 294 | continue; |
| 295 | } |
| 296 | break; |
| 297 | } |
| 298 | |
| 299 | if (reply != 0) { |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 300 | fprintf(stderr, |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 301 | "Connection to floppyd failed:\n" |
| 302 | "%s\n", AuthErrors[reply]); |
| 303 | return -1; |
| 304 | } |
Yi Kong | 39bbd96 | 2022-01-09 19:41:38 +0800 | [diff] [blame] | 305 | |
Alistair Delva | beaee83 | 2021-02-24 11:27:23 -0800 | [diff] [blame] | 306 | free(hostname); |
| 307 | free(display); |
| 308 | |
| 309 | if(write_dword(sock, 1) < 0) { |
| 310 | fprintf(stderr, |
| 311 | "Short write to floppyd:\n" |
| 312 | "%s\n", strerror(errno)); |
| 313 | } |
| 314 | |
| 315 | if(write(sock, &opcode, 1) < 0) { |
| 316 | fprintf(stderr, |
| 317 | "Short write to floppyd:\n" |
| 318 | "%s\n", strerror(errno)); |
| 319 | } |
| 320 | |
| 321 | close(sock); |
| 322 | |
| 323 | return 0; |
| 324 | } |
| 325 | #endif |