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1# ChangeLog for Path Sandbox 1# ChangeLog for Path Sandbox
2# Copyright 1999-2004 Gentoo Foundation; Distributed under the GPL v2 2# Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3# $Header$ 3# $Header$
4
5 01 Dec 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, Makefile.am,
6 localdecls.h, scripts/Makefile.am, scripts/gen_symbol_version_map.awk,
7 scripts/gen_symbol_header.awk, src/Makefile.am, src/symbols.in,
8 src/libsandbox.c, src/getcwd.c, src/sandbox.c, data/sandbox.bashrc:
9
10 Use versioned symbols on supported libc's for functions we wrap, as well as
11 provide all versions of specific functions. Some syntax cleanups.
12
13 Only check SANDBOX_ACTIVE, and not its value. More BASH_ENV fixes.
14
15 Rename configure.in to configure.ac.
16
17 Fix non-versioned libc's to also prepend '__' to internal symbols by using
18 strong aliases.
19
20 Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
21 symbol map, and all non-exported symbols are local. Cleanup getcwd.c, as
22 the generic getcwd for older 2.4 kernels do not work properly anyhow, and
23 just makes things slower. Some other warning fixes.
24
25 Rename src/symbols.in to src/symbols.h.in.
26
27 Cleanup local defines for egetcwd() and erealpath().
28
29 Rename filter_path() to resolve_path() and other renames for clarity.
30
31 Fixup SANDBOX_ON handling after already running changes.
32
33 Use egetcwd() in sandbox.c.
34
35 Rather use fstat() to get file size in file_length() than lseek().
36
37 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
38 sandbox_fdutils.c:
39
40 Detect if we on 64bit arch automatically.
41
42 Update contact email. Fix quoting.
43
44 Revert 64bit arch test, as we should build the 32bit version without full
45 path checking as well, and add --enable-multilib switch to configure.
46
47* sandbox-1.2.14 (2005/11/28)
48
49 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
50 sandbox.c, sandbox.h, sandbox.bashrc:
51
52 Check generic getcwd()'s return as well for validity, bug #101728.
53
54 Cleanup environ variables.
55
56 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
57 to readonly in sandbox.bashrc.
58
59 Make sure we use our bashrc.
60
61 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
62
63 Do not pass mode to true_open and true_open64 if not needed. Should fix a
64 segfault in some cases.
65
66* sandbox-1.2.13 (2005/09/12)
67
68 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
69
70 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
71 itself.
72
73 Make libsb_fini() do cleanup a bit more complete just in case we get another
74 uClibc 'call preloaded library fini before that of app' issue ... probably
75 will not help much, but we try.
76
77 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
78
79 Also allow symlink() system call to operate on a symlink in a writable path
80 that points to non-writable path, bug #104711.
81
82* sandbox-1.2.12 (2005/08/05)
83
84 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
85 sandbox.h:
86
87 Do not give an access violation if the access() system call do not have
88 write/read access - it does not actually modify, so we only need to return
89 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
90 bug #101433.
91
92 If we are called from the command line, do not care about PORTAGE_TMPDIR,
93 and make the current directory the work directory. Also rename the variable
94 portage_tmp_dir to work_dir.
95
96 Remove the tmp_dir variable - we do not need it.
97
98 Improve error handling for get_sandbox_*_envvar() functions.
99
100 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
101
102 Still do normal log if debugging is requested.
103
104 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
105 to only enable if equal to "1" or "yes".
106
107 Add /dev/tts to write permit, bug #42809.
108
109 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
110 sandbox_futils.c:
111
112 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
113 in libsandbox .. bug #100309.
114
115 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
116
117 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
118
119* sandbox-1.2.11 (2005/07/14)
120
121 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
122 Fix getcwd, bug #98419.
123
124 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
125 libsandbox.c:
126 - Try to cleanup and make error handling/printing consistent.
127 - Remove old logs if present and conflicting with current.
128 - Fix compile error with previous change, and return rather then exit().
129
130 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
131 sandbox.h, sandbox_futils.c:
132 - Fix possible segfault in env init code.
133 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
134 write to /var/log/sandbox/, so in theory do not need all that.
135 - Redo the interface of the get_* functions so that we do not leak memory.
136 - Remove sandbox_dir and co - we are not using it anymore.
137 - Remove unused includes and variables.
138 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
139 OUTSIDE_LIBSANDBOX is not defined.
140 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
141 printing's last line not honouring NOCOLOR.
142
143 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
144 libsandbox.c:
145 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
146 write to it.
147 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
148 - Add check_prefixes() with major cleanup on check_access().
149 - Cleanup init_env_entries() and check_prefixes().
150
151 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
152 sandbox_futils.c, libsandbox.c:
153 Remove unused 'pids file' code.
154
155* sandbox-1.2.10 (2005/07/03)
156
157 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
158 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
159
160 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
161 General cleanups:
162 - Remove fooling around with exit codes - we error out on presence of a log
163 anyhow.
164 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
165 appropriate there.
166
167 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
168 Cleanup the fail_nametoolong stuff a bit more.
169
170 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
171 Remove hopefully the last ld.so.preload bits we do not use anymore.
172
173 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
174 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
175 in check_syscall(). Should speed things up a bit (at least for the getcwd()
176 and long path name test it goes down to under a second, and not 10+ seconds
177 like before). Also warn if we skip checking due to the canonicalized path
178 being too long.
179
180 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
181 More comment/readability cleanups.
182
183 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
184 sandbox_futils.c, libsandbox.c:
185 Some strncpy/strncat and other cleanups.
186
187* sandbox-1.2.9 (2005/06/09)
188
189 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
190 Move symlink hack down a bit to try and minimize on the amount of lstat()
191 calls we do.
192
193 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
194 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
195
196 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
197 Add wrapper for access() function, bug #85413.
198
199 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
200 Use generic getcwd() implementation from uclibc - should be more portable
201 and looks a bit cleaner.
202
203 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
204 Make sure our true_* pointers are initialized to NULL, and that we check for
205 all references that they are valid.
206
207 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
208 Be default we will fail if the path name we try to canonicalize is too long.
209 This however could cause issues with some things (bug #94630 and #21766), so
210 if fail_nametoolong == 0, canonicalize() will return a null length string and
211 do not fail.
212
213 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
214 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
215 make sure we re-export the new TMPDIR environment variable.
216
217 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
218 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
219 by Marcus D. Hanwell <cryos@gentoo.org>.
220
221 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
222 Add /dev/console to write list, bug #38588.
223
224* sandbox-1.2.8 (2005/05/13)
225
226 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
227 sandbox.h, sandbox_futils.c:
228 General cleanups.
229
230 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
231 sandbox.h:
232 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
233
234 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
235 sandbox.h, sandbox_futils.c:
236 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
237 to use TMPDIR if present in environment.
238
239 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
240 Remove sandbox_log_file from main() as its no longer used.
241
242 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
243 sandbox_futils.c:
244 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
245 if already exported when sandbox started). Fix get_sandbox_log() and new
246 get_sandbox_debug_log() to not use already exported environment variables if
247 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
248 SB_PATH_MAX fixes.
249
250* sandbox-1.2.7 (2005/05/12)
251
252 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
253 sandbox_futils.c:
254 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
255
256 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
257 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
258 with '(null)' in it if we did not call sandbox with absolute path.
259
260 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
261 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
262 for the child.
263
264 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
265 Remove global preload_adaptable as it is no longer used.
266
267 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
268 Rewrite environment stuff to only be set when execve'ing the child process
269 to try and avoid issues like bug #91541 that causes sandbox to crash if
270 we set LD_PRELOAD sandbox side already.
271
272 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
273 Move print_sandbox_log() up to make things neater.
274
275 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
276 Remove load_preload_libs(), as its not used anymore.
277
278 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
279 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
280
281 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
282 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
283
284 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
285 Remove ld.so.preload crap - we are not going to use it again.
286
287 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
288 Fix typo in code that checks if we got valid group information, causing a
289 segmentation fault, bug #91637.
290
291* sandbox-1.2.6 (2005/05/10)
292
293 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
294 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
295 for some odd reason, bug #91541.
296
297 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
298 Fix typo (sizeof -> strlen).
299
300 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
301 rewrote the sbcontext caching code so it accounts for env changes since lib
302 initialization.
303
304 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
305 We create libctest.c via configure, so no need to keep it around. Do some
306 cleanup related to libctest.c and libctest during configure.
307
308 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
309 Add rename support of symlinks pointing to protected files/directories.
310
311* sandbox-1.2.5 (2005/05/04)
312
313 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
314 sandbox.bashrc:
315 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
316 already set, init of the env vars fails for some reason, so do this later on,
317 and do not warn (bug #91431).
318
319 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
320 sandbox.bashrc:
321 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
322
323* sandbox-1.2.4 (2005/05/03)
324
325 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
326 Do not init the env entries with each call, as it creates too many calls to
327 lstat, etc. Should speedup things a bit, bug #91040.
328
329 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
330 Add /dev/pty to default write list. Noticed by Morfic.
331
332 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
333 sandbox.h:
334 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
335 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
336
337* sandbox-1.2.3 (2005/04/29)
338
339 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
340 Do not check for (*&#$(* CXX or F77.
341
342 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
343 Do not append '/' to pathname in filter_path() if it already ends with it.
344
345 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
346 With az's help, clean up autotools to work with cross-compiling.
347
348* sandbox-1.2.2 (2005/04/28)
349
350 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
351 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
352 have issues; bug #90592.
353
354* sandbox-1.2.1 (2005/04/23)
355
356 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
357 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
358 Make sure all functions used in libsandbox.c is declared static. Define
359 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
360 linking with its object. Hopefully this will fix bug #90153.
361
362* sandbox-1.2 (2005/04/23)
363
364 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
365 Allow lchown a symlink in write-allowed path pointing to write-denied
366 target.
367
368 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
369 Also show resolved symlink names in the log.
370
371 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
372 Seems -nostdlib was the problem with the constructor/destructor - remove it
373 from Makefile.am, and change the constructor/destructor names again.
374
375 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
376 Also rename the _init() and _fini() declarations.
377
378 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
379 Fixup the constructor/destructor function names again (they should be _init()
380 and _fini() it seems, and not being called caused sandbox_lib_path to be
381 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
382 Add both the path in given SANDBOX_x variable, as well as its symlink
383 resolved path in init_env_entries(). Modify filter_path() to be able to
384 resolve paths without resolving symlinks, as well as to be able to resolve
385 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
386 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
387 for bug #31019 cause access violations if we try to remove a symlink that is
388 not in protected path, but points to a protected path. Fix a memory leak in
389 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
390 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
391 (pid_string was uninitialized). General syntax cleanups.
392
393 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
394 infamous "pids file is not a regular file" w/out newline bug.
395
396 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
397 Correct libc_version path detection, since it was screwing up if libdir !=
398 "/lib/".
399
400 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
401 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
402
403 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
404 Fix symbols.in not added to dist.
405
406 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
407 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
408 White space fixes.
409
410 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
411 configure.in, getcwd.c, libsandbox.c, symbols.in:
412 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
413 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
414 for glibc and other libc's that use this. Update libsandbox.c to use these
415 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
416 process unset it.
417
418 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
419 killed off _init and _fini in favor of
420 void __attribute__ ((constructor)) init_func and
421 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
422
423 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
424 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
425 having the hick-ups.
426
427 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
428 Makefile.am: Fixed compilation.
4 429
5 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4: 430 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
6 Gutted the bugger so it stops checking for a c++ and fortran compiler. 431 Gutted the bugger so it stops checking for a c++ and fortran compiler.
7 Do *not* regenerate aclocal.m4 for making a release until a better 432 Do *not* regenerate aclocal.m4 for making a release until a better
8 solution is created. 433 solution is created.

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