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

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