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Revision 166 - (show annotations) (download)
Mon Sep 12 06:50:53 2005 UTC (9 years, 1 month ago) by azarah
Original Path: trunk/ChangeLog
File size: 28991 byte(s)
Make libsb_fini() do cleanup a bit more complete just in case we get another
uClibc 'call preloaded library fini before that of app' issue ... probably
will not help much, but we try.

1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
6
7 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
8 itself.
9
10 Make libsb_fini() do cleanup a bit more complete just in case we get another
11 uClibc 'call preloaded library fini before that of app' issue ... probably
12 will not help much, but we try.
13
14 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
15
16 Also allow symlink() system call to operate on a symlink in a writable path
17 that points to non-writable path, bug #104711.
18
19 * sandbox-1.2.12 (2005/08/05)
20
21 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
22 sandbox.h:
23
24 Do not give an access violation if the access() system call do not have
25 write/read access - it does not actually modify, so we only need to return
26 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
27 bug #101433.
28
29 If we are called from the command line, do not care about PORTAGE_TMPDIR,
30 and make the current directory the work directory. Also rename the variable
31 portage_tmp_dir to work_dir.
32
33 Remove the tmp_dir variable - we do not need it.
34
35 Improve error handling for get_sandbox_*_envvar() functions.
36
37 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
38
39 Still do normal log if debugging is requested.
40
41 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
42 to only enable if equal to "1" or "yes".
43
44 Add /dev/tts to write permit, bug #42809.
45
46 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
47 sandbox_futils.c:
48
49 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
50 in libsandbox .. bug #100309.
51
52 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
53
54 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
55
56 * sandbox-1.2.11 (2005/07/14)
57
58 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
59 Fix getcwd, bug #98419.
60
61 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
62 libsandbox.c:
63 - Try to cleanup and make error handling/printing consistent.
64 - Remove old logs if present and conflicting with current.
65 - Fix compile error with previous change, and return rather then exit().
66
67 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
68 sandbox.h, sandbox_futils.c:
69 - Fix possible segfault in env init code.
70 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
71 write to /var/log/sandbox/, so in theory do not need all that.
72 - Redo the interface of the get_* functions so that we do not leak memory.
73 - Remove sandbox_dir and co - we are not using it anymore.
74 - Remove unused includes and variables.
75 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
76 OUTSIDE_LIBSANDBOX is not defined.
77 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
78 printing's last line not honouring NOCOLOR.
79
80 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
81 libsandbox.c:
82 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
83 write to it.
84 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
85 - Add check_prefixes() with major cleanup on check_access().
86 - Cleanup init_env_entries() and check_prefixes().
87
88 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
89 sandbox_futils.c, libsandbox.c:
90 Remove unused 'pids file' code.
91
92 * sandbox-1.2.10 (2005/07/03)
93
94 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
95 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
96
97 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
98 General cleanups:
99 - Remove fooling around with exit codes - we error out on presence of a log
100 anyhow.
101 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
102 appropriate there.
103
104 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
105 Cleanup the fail_nametoolong stuff a bit more.
106
107 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
108 Remove hopefully the last ld.so.preload bits we do not use anymore.
109
110 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
111 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
112 in check_syscall(). Should speed things up a bit (at least for the getcwd()
113 and long path name test it goes down to under a second, and not 10+ seconds
114 like before). Also warn if we skip checking due to the canonicalized path
115 being too long.
116
117 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
118 More comment/readability cleanups.
119
120 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
121 sandbox_futils.c, libsandbox.c:
122 Some strncpy/strncat and other cleanups.
123
124 * sandbox-1.2.9 (2005/06/09)
125
126 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
127 Move symlink hack down a bit to try and minimize on the amount of lstat()
128 calls we do.
129
130 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
131 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
132
133 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
134 Add wrapper for access() function, bug #85413.
135
136 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
137 Use generic getcwd() implementation from uclibc - should be more portable
138 and looks a bit cleaner.
139
140 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
141 Make sure our true_* pointers are initialized to NULL, and that we check for
142 all references that they are valid.
143
144 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
145 Be default we will fail if the path name we try to canonicalize is too long.
146 This however could cause issues with some things (bug #94630 and #21766), so
147 if fail_nametoolong == 0, canonicalize() will return a null length string and
148 do not fail.
149
150 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
151 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
152 make sure we re-export the new TMPDIR environment variable.
153
154 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
155 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
156 by Marcus D. Hanwell <cryos@gentoo.org>.
157
158 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
159 Add /dev/console to write list, bug #38588.
160
161 * sandbox-1.2.8 (2005/05/13)
162
163 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
164 sandbox.h, sandbox_futils.c:
165 General cleanups.
166
167 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
168 sandbox.h:
169 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
170
171 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
172 sandbox.h, sandbox_futils.c:
173 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
174 to use TMPDIR if present in environment.
175
176 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
177 Remove sandbox_log_file from main() as its no longer used.
178
179 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
180 sandbox_futils.c:
181 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
182 if already exported when sandbox started). Fix get_sandbox_log() and new
183 get_sandbox_debug_log() to not use already exported environment variables if
184 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
185 SB_PATH_MAX fixes.
186
187 * sandbox-1.2.7 (2005/05/12)
188
189 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
190 sandbox_futils.c:
191 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
192
193 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
194 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
195 with '(null)' in it if we did not call sandbox with absolute path.
196
197 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
198 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
199 for the child.
200
201 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
202 Remove global preload_adaptable as it is no longer used.
203
204 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
205 Rewrite environment stuff to only be set when execve'ing the child process
206 to try and avoid issues like bug #91541 that causes sandbox to crash if
207 we set LD_PRELOAD sandbox side already.
208
209 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
210 Move print_sandbox_log() up to make things neater.
211
212 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
213 Remove load_preload_libs(), as its not used anymore.
214
215 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
216 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
217
218 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
219 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
220
221 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
222 Remove ld.so.preload crap - we are not going to use it again.
223
224 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
225 Fix typo in code that checks if we got valid group information, causing a
226 segmentation fault, bug #91637.
227
228 * sandbox-1.2.6 (2005/05/10)
229
230 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
231 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
232 for some odd reason, bug #91541.
233
234 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
235 Fix typo (sizeof -> strlen).
236
237 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
238 rewrote the sbcontext caching code so it accounts for env changes since lib
239 initialization.
240
241 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
242 We create libctest.c via configure, so no need to keep it around. Do some
243 cleanup related to libctest.c and libctest during configure.
244
245 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
246 Add rename support of symlinks pointing to protected files/directories.
247
248 * sandbox-1.2.5 (2005/05/04)
249
250 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
251 sandbox.bashrc:
252 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
253 already set, init of the env vars fails for some reason, so do this later on,
254 and do not warn (bug #91431).
255
256 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
257 sandbox.bashrc:
258 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
259
260 * sandbox-1.2.4 (2005/05/03)
261
262 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
263 Do not init the env entries with each call, as it creates too many calls to
264 lstat, etc. Should speedup things a bit, bug #91040.
265
266 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
267 Add /dev/pty to default write list. Noticed by Morfic.
268
269 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
270 sandbox.h:
271 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
272 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
273
274 * sandbox-1.2.3 (2005/04/29)
275
276 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
277 Do not check for (*&#$(* CXX or F77.
278
279 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
280 Do not append '/' to pathname in filter_path() if it already ends with it.
281
282 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
283 With az's help, clean up autotools to work with cross-compiling.
284
285 * sandbox-1.2.2 (2005/04/28)
286
287 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
288 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
289 have issues; bug #90592.
290
291 * sandbox-1.2.1 (2005/04/23)
292
293 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
294 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
295 Make sure all functions used in libsandbox.c is declared static. Define
296 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
297 linking with its object. Hopefully this will fix bug #90153.
298
299 * sandbox-1.2 (2005/04/23)
300
301 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
302 Allow lchown a symlink in write-allowed path pointing to write-denied
303 target.
304
305 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
306 Also show resolved symlink names in the log.
307
308 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
309 Seems -nostdlib was the problem with the constructor/destructor - remove it
310 from Makefile.am, and change the constructor/destructor names again.
311
312 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
313 Also rename the _init() and _fini() declarations.
314
315 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
316 Fixup the constructor/destructor function names again (they should be _init()
317 and _fini() it seems, and not being called caused sandbox_lib_path to be
318 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
319 Add both the path in given SANDBOX_x variable, as well as its symlink
320 resolved path in init_env_entries(). Modify filter_path() to be able to
321 resolve paths without resolving symlinks, as well as to be able to resolve
322 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
323 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
324 for bug #31019 cause access violations if we try to remove a symlink that is
325 not in protected path, but points to a protected path. Fix a memory leak in
326 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
327 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
328 (pid_string was uninitialized). General syntax cleanups.
329
330 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
331 infamous "pids file is not a regular file" w/out newline bug.
332
333 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
334 Correct libc_version path detection, since it was screwing up if libdir !=
335 "/lib/".
336
337 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
338 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
339
340 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
341 Fix symbols.in not added to dist.
342
343 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
344 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
345 White space fixes.
346
347 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
348 configure.in, getcwd.c, libsandbox.c, symbols.in:
349 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
350 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
351 for glibc and other libc's that use this. Update libsandbox.c to use these
352 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
353 process unset it.
354
355 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
356 killed off _init and _fini in favor of
357 void __attribute__ ((constructor)) init_func and
358 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
359
360 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
361 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
362 having the hick-ups.
363
364 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
365 Makefile.am: Fixed compilation.
366
367 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
368 Gutted the bugger so it stops checking for a c++ and fortran compiler.
369 Do *not* regenerate aclocal.m4 for making a release until a better
370 solution is created.
371
372 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
373 Removal of more hardcoded paths.
374
375 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
376 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
377
378 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
379 Sandbox is now autotooled, create-localdecls needs to be killed and the code
380 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
381 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
382 To get to a point of testing, automake && autoconf; created requisite files w/
383 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
384 /lib and /usr/lib/portage/bin.
385
386 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
387 closing out bug #70225, potential overflow of the sandbox_pids_file var.
388
389 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
390 (think it was at least) allows intermixing of code and data segments. bug #70351
391 should be fixed by this.
392
393 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
394 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
395
396 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
397 Seth Robertson that tracked down all adjuct flags for read operations that
398 do not invoke a write operation.
399
400 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
401 Another fix from jstubbs regarding a free() on a stack variable for the
402 environment -- tracking now prevents extraneous free()'s segfault.
403
404 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
405 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
406 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
407 Also remove the errno = ESUCCESS settings as documentation points out that
408 a library isn't allowed to do that.
409
410 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
411 file_security_check() function to check random potential exploits on files
412 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
413 the 'system-crippling' exploits (bug 21923) and catches a few other
414 potential problems.
415
416 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
417 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
418
419 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
420 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
421 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
422
423 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
424 Fix permissions and group of pids file and logs. Permissions should be 0664
425 and group should be 'portage'. Bug #34260.
426
427 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
428 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
429 to the real execve (in our execve wrapper). Seems that on some arches (sparc
430 among others) do not allow us to tamper with the readonly copy passed to
431 execve, so pass our own copy of the environment. Bug #42290.
432
433 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
434 Changed tail to head and added a notice about duration of glibc check.
435
436 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
437 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
438 as there isn't a guarentee that it is dynamic.
439
440 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
441 If 'file' passed to before_syscall(const char *func, const char *file) is
442 invalid, we should set errno to ENOENT, and not EINVAL. This should
443 close bug #32238.
444
445 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
446 Fix a bug that occurs mainly on 64bit arch, where the file passed to
447 the functions we wrap, is invalid, and then cause canonicalize to pass
448 garbage to before_syscall(), thanks to great detective work from
449 Andrea Luzzardi <al@sig11.org> (bug #29846).
450
451 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
452 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
453
454 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
455 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
456 only checked the destination patch, and not the source, so we could move
457 a protected file to a unprotected directory, and then delete/modify it.
458 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
459
460 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
461 Added python2.3 to the predict section/variable.
462
463 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
464 sandbox.h, sandbox_futils.c :
465 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
466 it is not set, it will revert to its old value.
467
468 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
469 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
470 rather than failing with a violation, bug #29748.
471
472 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
473 Fix canonicalize() to ignore calls with path = "".
474
475 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
476 sandbox_futils.c, canonicalize.c :
477 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
478 call handled strings larger than PATH_MAX (bug #21766). It however does not
479 work the same on 2.4 kernels.
480
481 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
482 do not need the system call. We use the default getcwd() function via a
483 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
484 means the current directory was removed, OR that the the system call for
485 getcwd failed (curious is that it do not fail and return NULL or set
486 errno, but rather just truncate the retured directory - usually from the
487 start), and if so, we use the generic getcwd() function (__egetcwd). Note
488 that we do not use the generic version all the time, as it calls lstat()
489 a great number of times, and performance degrade much.
490
491 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
492 libsandbox.c :
493 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
494
495 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
496 create-localdecls :
497 When checking path names of files accessed, we need to canonicalize it, else
498 it may be a symlink in a 'write allowed' directory pointing to a file in a
499 directory we should not have write access to.
500
501 With something like coreutils-5.0, we have two problems:
502 1) One of the tests checks if getcwd() can return a path longer than
503 PATH_MAX. This test then tries to create a dir which even while
504 created local (mkdir("conftest2")), it ends up being resolved with
505 a name that is much larger than PATH_MAX. The problem now is that
506 canonicalize() have undefined behaviour when the path was too long
507 (returned wrongly truncated paths, etc), and pass the wrong path to
508 before_syscall() (causing the bogus sandbox violations).
509 2) The ecanonicalize() function we used, along with the canonicalize()
510 function did not support longer than PATH_MAX. This is partly a
511 cause for 1), but the error checking (rather lack of it) of calls
512 to erealpath() in canonicalize() was the prime reason for 1).
513
514 As we do not use this canonicalized name to call the function, we resolve this
515 by fixing canonicalize() to do better error checking, and ecanonicalize() as
516 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
517 While they will resolve paths properly now, and can check if a write/read is
518 allowed, the functions called from the sandboxed environment will still work
519 as expected.
520
521 This should resolve bug #21766.
522
523 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
524 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
525 it (bug #16298).
526
527 Problem is that for some reason locale fopen's locale.alias with mode "rm".
528
529 -------------------------------------------------------
530 nosferatu root # grep fopen locale.log
531 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
532 nosferatu root #
533 --------------------------------------------------------
534
535 I checked the source of locale, but it have fopen with mode 'r', so
536 not sure where the "rm" mode comes from. Anyhow, changed the check in
537 before_syscall_open_char() to also see mode "rm" as readonly.
538
539 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
540
541 Add glibc-2.3 support.
542
543 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
544
545 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
546 operations releated to preload, as well as only try to modify ld.so.preload
547 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
548 not using ld.so.preload. Fix to not write this instance of sandbox's pid
549 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
550
551 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
552
553 Changed the LD to CC for hppa.
554
555 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
556
557 Killed the previous changes I made.
558
559 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
560
561 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
562
563 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
564
565 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
566
567 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
568
569 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
570 for this fix.
571
572 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
573
574 sandbox_futils defined a dirname() function that was masking the same
575 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
576 '/usr/lib/portage/bi/'). Fixed function to return expected results and
577 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
578 11231.
579
580 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
581
582 Fix a segfault in libsandbox.c if canonicalize() was called with
583 first parameter = NULL.
584
585 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
586
587 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
588 cleanup() for this.
589
590 Change cleanup() in sandbox.c not to exit with fail status if
591 the pidsfile is missing. We really should still display sandbox
592 violations if they occured.
593
594 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
595
596 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
597 the last sandbox running.
598
599 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
600
601 Major cleanups to mainly libsandbox.c again.
602
603 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
604
605 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
606 parties involved should please contact me so that we can fix it.
607
608 Add opendir wrapper to libsandbox.c.
609
610 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
611
612 Do some more cleanups to ecanonicalize(), as it dropped filenames in
613 rare cases (after my symlink cleanups), and caused glibc to bork.
614 These fixes went into canonicalize.c.
615
616 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
617
618 Fix spawn_shell() and main() in sandbox.c to properly return fail
619 status.
620
621 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
622
623 The new canonicalize() function in libsandbox.c also resolved symlinks,
624 which caused on cleaning sandbox errors if the symlink pointed to a
625 file in the live root. Ripped out canonicalize() and realpath() from
626 glibc; removed the symlink stuff, and changed them to ecanonicalize()
627 and erealpath().
628
629 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
630
631 Ripped out all the wrappers, and implemented those of InstallWatch.
632 Losts of cleanups and bugfixes. Implement a execve that forces
633 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
634 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
635 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
636 parts; it now have an install target.
637
638 Reformat the whole thing to look somewhat like the reworked sandbox.c
639 and new sandbox.h and sandbox_futils.c from:
640
641 Brad House <brad@mainstreetsoftworks.com>.
642
643 Additional Copyrights now due to the InstallWatch code:
644
645 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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