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

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