LICENSE (21086B)
1 This file contains the license for Tor, 2 a free software project to provide anonymity on the Internet. 3 4 It also lists the licenses for other components used by Tor. 5 6 For more information about Tor, see https://www.torproject.org/. 7 8 If you got this file as a part of a larger bundle, 9 there may be other license terms that you should be aware of. 10 11 =============================================================================== 12 Tor is distributed under the "3-clause BSD" license, a commonly used 13 software license that means Tor is both free software and open source: 14 15 Copyright (c) 2001-2004, Roger Dingledine 16 Copyright (c) 2004-2006, Roger Dingledine, Nick Mathewson 17 Copyright (c) 2007-2019, The Tor Project, Inc. 18 19 Redistribution and use in source and binary forms, with or without 20 modification, are permitted provided that the following conditions are 21 met: 22 23 * Redistributions of source code must retain the above copyright 24 notice, this list of conditions and the following disclaimer. 25 26 * Redistributions in binary form must reproduce the above 27 copyright notice, this list of conditions and the following disclaimer 28 in the documentation and/or other materials provided with the 29 distribution. 30 31 * Neither the names of the copyright owners nor the names of its 32 contributors may be used to endorse or promote products derived from 33 this software without specific prior written permission. 34 35 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 38 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 39 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 42 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 43 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 44 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 45 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 46 =============================================================================== 47 src/ext/strlcat.c and src/ext/strlcpy.c by Todd C. Miller are licensed 48 under the following license: 49 50 * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> 51 * All rights reserved. 52 * 53 * Redistribution and use in source and binary forms, with or without 54 * modification, are permitted provided that the following conditions 55 * are met: 56 * 1. Redistributions of source code must retain the above copyright 57 * notice, this list of conditions and the following disclaimer. 58 * 2. Redistributions in binary form must reproduce the above copyright 59 * notice, this list of conditions and the following disclaimer in the 60 * documentation and/or other materials provided with the distribution. 61 * 3. The name of the author may not be used to endorse or promote products 62 * derived from this software without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 65 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 66 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 67 * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 68 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 69 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 70 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 71 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 72 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 73 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 74 =============================================================================== 75 src/ext/tor_queue.h is licensed under the following license: 76 77 * Copyright (c) 1991, 1993 78 * The Regents of the University of California. All rights reserved. 79 * 80 * Redistribution and use in source and binary forms, with or without 81 * modification, are permitted provided that the following conditions 82 * are met: 83 * 1. Redistributions of source code must retain the above copyright 84 * notice, this list of conditions and the following disclaimer. 85 * 2. Redistributions in binary form must reproduce the above copyright 86 * notice, this list of conditions and the following disclaimer in the 87 * documentation and/or other materials provided with the distribution. 88 * 3. Neither the name of the University nor the names of its contributors 89 * may be used to endorse or promote products derived from this software 90 * without specific prior written permission. 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 93 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 95 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 96 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 97 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 98 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 100 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 101 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 102 * SUCH DAMAGE. 103 104 =============================================================================== 105 src/ext/csiphash.c is licensed under the following license: 106 107 Copyright (c) 2013 Marek Majkowski <marek@popcount.org> 108 109 Permission is hereby granted, free of charge, to any person obtaining a copy 110 of this software and associated documentation files (the "Software"), to deal 111 in the Software without restriction, including without limitation the rights 112 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 113 copies of the Software, and to permit persons to whom the Software is 114 furnished to do so, subject to the following conditions: 115 116 The above copyright notice and this permission notice shall be included in 117 all copies or substantial portions of the Software. 118 119 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 120 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 121 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 122 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 123 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 124 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 125 THE SOFTWARE. 126 =============================================================================== 127 Trunnel is distributed under this license: 128 129 Copyright 2014 The Tor Project, Inc. 130 131 Redistribution and use in source and binary forms, with or without 132 modification, are permitted provided that the following conditions are 133 met: 134 135 * Redistributions of source code must retain the above copyright 136 notice, this list of conditions and the following disclaimer. 137 138 * Redistributions in binary form must reproduce the above 139 copyright notice, this list of conditions and the following disclaimer 140 in the documentation and/or other materials provided with the 141 distribution. 142 143 * Neither the names of the copyright owners nor the names of its 144 contributors may be used to endorse or promote products derived from 145 this software without specific prior written permission. 146 147 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 148 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 149 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 150 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 151 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 152 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 153 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 154 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 155 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 156 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 157 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 158 159 =============================================================================== 160 getdelim.c is distributed under this license: 161 162 Copyright (c) 2011 The NetBSD Foundation, Inc. 163 All rights reserved. 164 165 This code is derived from software contributed to The NetBSD Foundation 166 by Christos Zoulas. 167 168 Redistribution and use in source and binary forms, with or without 169 modification, are permitted provided that the following conditions 170 are met: 171 1. Redistributions of source code must retain the above copyright 172 notice, this list of conditions and the following disclaimer. 173 2. Redistributions in binary form must reproduce the above copyright 174 notice, this list of conditions and the following disclaimer in the 175 documentation and/or other materials provided with the distribution. 176 177 THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 178 ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 179 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 180 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 181 BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 182 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 183 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 184 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 185 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 186 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 187 POSSIBILITY OF SUCH DAMAGE. 188 189 =============================================================================== 190 src/config/geoip and src/config/geoip6: 191 192 These files are based on the IPFire Location Database. For more 193 information, see https://location.ipfire.org/. 194 195 The data is distributed under a creative commons "BY-SA 4.0" license. 196 197 Find the full license terms at: 198 https://creativecommons.org/licenses/by-sa/4.0/ 199 200 =============================================================================== 201 m4/pc_from_ucontext.m4 is available under the following license. Note that 202 it is *not* built into the Tor software. 203 204 Copyright (c) 2005, Google Inc. 205 All rights reserved. 206 207 Redistribution and use in source and binary forms, with or without 208 modification, are permitted provided that the following conditions are 209 met: 210 211 * Redistributions of source code must retain the above copyright 212 notice, this list of conditions and the following disclaimer. 213 * Redistributions in binary form must reproduce the above 214 copyright notice, this list of conditions and the following disclaimer 215 in the documentation and/or other materials provided with the 216 distribution. 217 * Neither the name of Google Inc. nor the names of its 218 contributors may be used to endorse or promote products derived from 219 this software without specific prior written permission. 220 221 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 222 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 223 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 224 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 225 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 226 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 227 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 228 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 229 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 230 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 231 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 232 233 =============================================================================== 234 m4/pkg.m4 is available under the following license. Note that 235 it is *not* built into the Tor software. 236 237 pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- 238 serial 1 (pkg-config-0.24) 239 240 Copyright © 2004 Scott James Remnant <scott@netsplit.com>. 241 242 This program is free software; you can redistribute it and/or modify 243 it under the terms of the GNU General Public License as published by 244 the Free Software Foundation; either version 2 of the License, or 245 (at your option) any later version. 246 247 This program is distributed in the hope that it will be useful, but 248 WITHOUT ANY WARRANTY; without even the implied warranty of 249 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 250 General Public License for more details. 251 252 You should have received a copy of the GNU General Public License 253 along with this program; if not, write to the Free Software 254 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 255 256 As a special exception to the GNU General Public License, if you 257 distribute this file as part of a program that contains a 258 configuration script generated by Autoconf, you may include it under 259 the same distribution terms that you use for the rest of that program. 260 =============================================================================== 261 src/ext/readpassphrase.[ch] are distributed under this license: 262 263 Copyright (c) 2000-2002, 2007 Todd C. Miller <Todd.Miller@courtesan.com> 264 265 Permission to use, copy, modify, and distribute this software for any 266 purpose with or without fee is hereby granted, provided that the above 267 copyright notice and this permission notice appear in all copies. 268 269 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 270 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 271 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 272 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 273 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 274 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 275 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 276 277 Sponsored in part by the Defense Advanced Research Projects 278 Agency (DARPA) and Air Force Research Laboratory, Air Force 279 Materiel Command, USAF, under agreement number F39502-99-1-0512. 280 281 =============================================================================== 282 src/ext/mulodi4.c is distributed under this license: 283 284 ========================================================================= 285 compiler_rt License 286 ========================================================================= 287 288 The compiler_rt library is dual licensed under both the 289 University of Illinois "BSD-Like" license and the MIT license. 290 As a user of this code you may choose to use it under either 291 license. As a contributor, you agree to allow your code to be 292 used under both. 293 294 Full text of the relevant licenses is included below. 295 296 ========================================================================= 297 298 University of Illinois/NCSA 299 Open Source License 300 301 Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT 302 303 All rights reserved. 304 305 Developed by: 306 307 LLVM Team 308 309 University of Illinois at Urbana-Champaign 310 311 http://llvm.org 312 313 Permission is hereby granted, free of charge, to any person 314 obtaining a copy of this software and associated documentation 315 files (the "Software"), to deal with the Software without 316 restriction, including without limitation the rights to use, 317 copy, modify, merge, publish, distribute, sublicense, and/or sell 318 copies of the Software, and to permit persons to whom the 319 Software is furnished to do so, subject to the following 320 conditions: 321 322 * Redistributions of source code must retain the above 323 copyright notice, this list of conditions and the following 324 disclaimers. 325 326 * Redistributions in binary form must reproduce the above 327 copyright notice, this list of conditions and the following 328 disclaimers in the documentation and/or other materials 329 provided with the distribution. 330 331 * Neither the names of the LLVM Team, University of Illinois 332 at Urbana-Champaign, nor the names of its contributors may 333 be used to endorse or promote products derived from this 334 Software without specific prior written permission. 335 336 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 337 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 338 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 339 NONINFRINGEMENT. IN NO EVENT SHALL THE CONTRIBUTORS OR COPYRIGHT 340 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 341 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 342 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 343 OTHER DEALINGS WITH THE SOFTWARE. 344 345 ========================================================================= 346 347 Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT 348 349 Permission is hereby granted, free of charge, to any person 350 obtaining a copy of this software and associated documentation 351 files (the "Software"), to deal in the Software without 352 restriction, including without limitation the rights to use, 353 copy, modify, merge, publish, distribute, sublicense, and/or sell 354 copies of the Software, and to permit persons to whom the 355 Software is furnished to do so, subject to the following 356 conditions: 357 358 The above copyright notice and this permission notice shall be 359 included in all copies or substantial portions of the Software. 360 361 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 362 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 363 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 364 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 365 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 366 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 367 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 368 OTHER DEALINGS IN THE SOFTWARE. 369 370 ========================================================================= 371 Copyrights and Licenses for Third Party Software Distributed with LLVM: 372 ========================================================================= 373 374 The LLVM software contains code written by third parties. Such 375 software will have its own individual LICENSE.TXT file in the 376 directory in which it appears. This file will describe the 377 copyrights, license, and restrictions which apply to that code. 378 379 The disclaimer of warranty in the University of Illinois Open 380 Source License applies to all code in the LLVM Distribution, and 381 nothing in any of the other licenses gives permission to use the 382 names of the LLVM Team or the University of Illinois to endorse 383 or promote products derived from this Software. 384 385 =============================================================================== 386 Parts of src/ext/polyval are based on Thomas Pornin's GHASH implementation in 387 BearSSL, and distributed under the following license: 388 389 Copyright (c) 2016 Thomas Pornin <pornin@bolet.org> 390 391 Permission is hereby granted, free of charge, to any person obtaining 392 a copy of this software and associated documentation files (the 393 "Software"), to deal in the Software without restriction, including 394 without limitation the rights to use, copy, modify, merge, publish, 395 distribute, sublicense, and/or sell copies of the Software, and to 396 permit persons to whom the Software is furnished to do so, subject to 397 the following conditions: 398 399 The above copyright notice and this permission notice shall be 400 included in all copies or substantial portions of the Software. 401 402 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 403 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 404 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 405 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 406 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 407 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 408 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 409 SOFTWARE. 410 411 412 =============================================================================== 413 If you got Tor as a static binary with OpenSSL included, then you should know: 414 "This product includes software developed by the OpenSSL Project 415 for use in the OpenSSL Toolkit (http://www.openssl.org/)" 416 ===============================================================================