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

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