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Revision 169 - (show annotations) (download)
Tue Nov 1 15:41:31 2005 UTC (8 years, 8 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 29022 byte(s)
Fix wrong version number.
1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 * sandbox-1.2.13 (2005/09/12)
6
7 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
8
9 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
10 itself.
11
12 Make libsb_fini() do cleanup a bit more complete just in case we get another
13 uClibc 'call preloaded library fini before that of app' issue ... probably
14 will not help much, but we try.
15
16 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
17
18 Also allow symlink() system call to operate on a symlink in a writable path
19 that points to non-writable path, bug #104711.
20
21 * sandbox-1.2.12 (2005/08/05)
22
23 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
24 sandbox.h:
25
26 Do not give an access violation if the access() system call do not have
27 write/read access - it does not actually modify, so we only need to return
28 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
29 bug #101433.
30
31 If we are called from the command line, do not care about PORTAGE_TMPDIR,
32 and make the current directory the work directory. Also rename the variable
33 portage_tmp_dir to work_dir.
34
35 Remove the tmp_dir variable - we do not need it.
36
37 Improve error handling for get_sandbox_*_envvar() functions.
38
39 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
40
41 Still do normal log if debugging is requested.
42
43 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
44 to only enable if equal to "1" or "yes".
45
46 Add /dev/tts to write permit, bug #42809.
47
48 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
49 sandbox_futils.c:
50
51 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
52 in libsandbox .. bug #100309.
53
54 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
55
56 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
57
58 * sandbox-1.2.11 (2005/07/14)
59
60 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
61 Fix getcwd, bug #98419.
62
63 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
64 libsandbox.c:
65 - Try to cleanup and make error handling/printing consistent.
66 - Remove old logs if present and conflicting with current.
67 - Fix compile error with previous change, and return rather then exit().
68
69 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
70 sandbox.h, sandbox_futils.c:
71 - Fix possible segfault in env init code.
72 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
73 write to /var/log/sandbox/, so in theory do not need all that.
74 - Redo the interface of the get_* functions so that we do not leak memory.
75 - Remove sandbox_dir and co - we are not using it anymore.
76 - Remove unused includes and variables.
77 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
78 OUTSIDE_LIBSANDBOX is not defined.
79 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
80 printing's last line not honouring NOCOLOR.
81
82 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
83 libsandbox.c:
84 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
85 write to it.
86 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
87 - Add check_prefixes() with major cleanup on check_access().
88 - Cleanup init_env_entries() and check_prefixes().
89
90 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
91 sandbox_futils.c, libsandbox.c:
92 Remove unused 'pids file' code.
93
94 * sandbox-1.2.10 (2005/07/03)
95
96 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
97 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
98
99 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
100 General cleanups:
101 - Remove fooling around with exit codes - we error out on presence of a log
102 anyhow.
103 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
104 appropriate there.
105
106 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
107 Cleanup the fail_nametoolong stuff a bit more.
108
109 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
110 Remove hopefully the last ld.so.preload bits we do not use anymore.
111
112 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
113 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
114 in check_syscall(). Should speed things up a bit (at least for the getcwd()
115 and long path name test it goes down to under a second, and not 10+ seconds
116 like before). Also warn if we skip checking due to the canonicalized path
117 being too long.
118
119 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
120 More comment/readability cleanups.
121
122 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
123 sandbox_futils.c, libsandbox.c:
124 Some strncpy/strncat and other cleanups.
125
126 * sandbox-1.2.9 (2005/06/09)
127
128 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
129 Move symlink hack down a bit to try and minimize on the amount of lstat()
130 calls we do.
131
132 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
133 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
134
135 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
136 Add wrapper for access() function, bug #85413.
137
138 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
139 Use generic getcwd() implementation from uclibc - should be more portable
140 and looks a bit cleaner.
141
142 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
143 Make sure our true_* pointers are initialized to NULL, and that we check for
144 all references that they are valid.
145
146 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
147 Be default we will fail if the path name we try to canonicalize is too long.
148 This however could cause issues with some things (bug #94630 and #21766), so
149 if fail_nametoolong == 0, canonicalize() will return a null length string and
150 do not fail.
151
152 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
153 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
154 make sure we re-export the new TMPDIR environment variable.
155
156 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
157 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
158 by Marcus D. Hanwell <cryos@gentoo.org>.
159
160 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
161 Add /dev/console to write list, bug #38588.
162
163 * sandbox-1.2.8 (2005/05/13)
164
165 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
166 sandbox.h, sandbox_futils.c:
167 General cleanups.
168
169 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
170 sandbox.h:
171 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
172
173 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
174 sandbox.h, sandbox_futils.c:
175 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
176 to use TMPDIR if present in environment.
177
178 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
179 Remove sandbox_log_file from main() as its no longer used.
180
181 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
182 sandbox_futils.c:
183 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
184 if already exported when sandbox started). Fix get_sandbox_log() and new
185 get_sandbox_debug_log() to not use already exported environment variables if
186 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
187 SB_PATH_MAX fixes.
188
189 * sandbox-1.2.7 (2005/05/12)
190
191 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
192 sandbox_futils.c:
193 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
194
195 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
196 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
197 with '(null)' in it if we did not call sandbox with absolute path.
198
199 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
200 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
201 for the child.
202
203 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
204 Remove global preload_adaptable as it is no longer used.
205
206 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
207 Rewrite environment stuff to only be set when execve'ing the child process
208 to try and avoid issues like bug #91541 that causes sandbox to crash if
209 we set LD_PRELOAD sandbox side already.
210
211 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
212 Move print_sandbox_log() up to make things neater.
213
214 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
215 Remove load_preload_libs(), as its not used anymore.
216
217 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
218 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
219
220 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
221 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
222
223 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
224 Remove ld.so.preload crap - we are not going to use it again.
225
226 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
227 Fix typo in code that checks if we got valid group information, causing a
228 segmentation fault, bug #91637.
229
230 * sandbox-1.2.6 (2005/05/10)
231
232 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
233 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
234 for some odd reason, bug #91541.
235
236 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
237 Fix typo (sizeof -> strlen).
238
239 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
240 rewrote the sbcontext caching code so it accounts for env changes since lib
241 initialization.
242
243 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
244 We create libctest.c via configure, so no need to keep it around. Do some
245 cleanup related to libctest.c and libctest during configure.
246
247 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
248 Add rename support of symlinks pointing to protected files/directories.
249
250 * sandbox-1.2.5 (2005/05/04)
251
252 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
253 sandbox.bashrc:
254 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
255 already set, init of the env vars fails for some reason, so do this later on,
256 and do not warn (bug #91431).
257
258 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
259 sandbox.bashrc:
260 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
261
262 * sandbox-1.2.4 (2005/05/03)
263
264 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
265 Do not init the env entries with each call, as it creates too many calls to
266 lstat, etc. Should speedup things a bit, bug #91040.
267
268 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
269 Add /dev/pty to default write list. Noticed by Morfic.
270
271 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
272 sandbox.h:
273 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
274 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
275
276 * sandbox-1.2.3 (2005/04/29)
277
278 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
279 Do not check for (*&#$(* CXX or F77.
280
281 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
282 Do not append '/' to pathname in filter_path() if it already ends with it.
283
284 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
285 With az's help, clean up autotools to work with cross-compiling.
286
287 * sandbox-1.2.2 (2005/04/28)
288
289 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
290 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
291 have issues; bug #90592.
292
293 * sandbox-1.2.1 (2005/04/23)
294
295 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
296 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
297 Make sure all functions used in libsandbox.c is declared static. Define
298 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
299 linking with its object. Hopefully this will fix bug #90153.
300
301 * sandbox-1.2 (2005/04/23)
302
303 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
304 Allow lchown a symlink in write-allowed path pointing to write-denied
305 target.
306
307 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
308 Also show resolved symlink names in the log.
309
310 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
311 Seems -nostdlib was the problem with the constructor/destructor - remove it
312 from Makefile.am, and change the constructor/destructor names again.
313
314 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
315 Also rename the _init() and _fini() declarations.
316
317 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
318 Fixup the constructor/destructor function names again (they should be _init()
319 and _fini() it seems, and not being called caused sandbox_lib_path to be
320 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
321 Add both the path in given SANDBOX_x variable, as well as its symlink
322 resolved path in init_env_entries(). Modify filter_path() to be able to
323 resolve paths without resolving symlinks, as well as to be able to resolve
324 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
325 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
326 for bug #31019 cause access violations if we try to remove a symlink that is
327 not in protected path, but points to a protected path. Fix a memory leak in
328 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
329 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
330 (pid_string was uninitialized). General syntax cleanups.
331
332 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
333 infamous "pids file is not a regular file" w/out newline bug.
334
335 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
336 Correct libc_version path detection, since it was screwing up if libdir !=
337 "/lib/".
338
339 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
340 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
341
342 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
343 Fix symbols.in not added to dist.
344
345 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
346 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
347 White space fixes.
348
349 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
350 configure.in, getcwd.c, libsandbox.c, symbols.in:
351 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
352 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
353 for glibc and other libc's that use this. Update libsandbox.c to use these
354 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
355 process unset it.
356
357 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
358 killed off _init and _fini in favor of
359 void __attribute__ ((constructor)) init_func and
360 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
361
362 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
363 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
364 having the hick-ups.
365
366 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
367 Makefile.am: Fixed compilation.
368
369 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
370 Gutted the bugger so it stops checking for a c++ and fortran compiler.
371 Do *not* regenerate aclocal.m4 for making a release until a better
372 solution is created.
373
374 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
375 Removal of more hardcoded paths.
376
377 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
378 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
379
380 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
381 Sandbox is now autotooled, create-localdecls needs to be killed and the code
382 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
383 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
384 To get to a point of testing, automake && autoconf; created requisite files w/
385 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
386 /lib and /usr/lib/portage/bin.
387
388 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
389 closing out bug #70225, potential overflow of the sandbox_pids_file var.
390
391 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
392 (think it was at least) allows intermixing of code and data segments. bug #70351
393 should be fixed by this.
394
395 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
396 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
397
398 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
399 Seth Robertson that tracked down all adjuct flags for read operations that
400 do not invoke a write operation.
401
402 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
403 Another fix from jstubbs regarding a free() on a stack variable for the
404 environment -- tracking now prevents extraneous free()'s segfault.
405
406 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
407 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
408 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
409 Also remove the errno = ESUCCESS settings as documentation points out that
410 a library isn't allowed to do that.
411
412 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
413 file_security_check() function to check random potential exploits on files
414 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
415 the 'system-crippling' exploits (bug 21923) and catches a few other
416 potential problems.
417
418 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
419 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
420
421 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
422 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
423 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
424
425 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
426 Fix permissions and group of pids file and logs. Permissions should be 0664
427 and group should be 'portage'. Bug #34260.
428
429 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
430 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
431 to the real execve (in our execve wrapper). Seems that on some arches (sparc
432 among others) do not allow us to tamper with the readonly copy passed to
433 execve, so pass our own copy of the environment. Bug #42290.
434
435 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
436 Changed tail to head and added a notice about duration of glibc check.
437
438 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
439 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
440 as there isn't a guarentee that it is dynamic.
441
442 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
443 If 'file' passed to before_syscall(const char *func, const char *file) is
444 invalid, we should set errno to ENOENT, and not EINVAL. This should
445 close bug #32238.
446
447 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
448 Fix a bug that occurs mainly on 64bit arch, where the file passed to
449 the functions we wrap, is invalid, and then cause canonicalize to pass
450 garbage to before_syscall(), thanks to great detective work from
451 Andrea Luzzardi <al@sig11.org> (bug #29846).
452
453 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
454 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
455
456 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
457 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
458 only checked the destination patch, and not the source, so we could move
459 a protected file to a unprotected directory, and then delete/modify it.
460 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
461
462 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
463 Added python2.3 to the predict section/variable.
464
465 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
466 sandbox.h, sandbox_futils.c :
467 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
468 it is not set, it will revert to its old value.
469
470 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
471 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
472 rather than failing with a violation, bug #29748.
473
474 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
475 Fix canonicalize() to ignore calls with path = "".
476
477 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
478 sandbox_futils.c, canonicalize.c :
479 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
480 call handled strings larger than PATH_MAX (bug #21766). It however does not
481 work the same on 2.4 kernels.
482
483 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
484 do not need the system call. We use the default getcwd() function via a
485 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
486 means the current directory was removed, OR that the the system call for
487 getcwd failed (curious is that it do not fail and return NULL or set
488 errno, but rather just truncate the retured directory - usually from the
489 start), and if so, we use the generic getcwd() function (__egetcwd). Note
490 that we do not use the generic version all the time, as it calls lstat()
491 a great number of times, and performance degrade much.
492
493 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
494 libsandbox.c :
495 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
496
497 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
498 create-localdecls :
499 When checking path names of files accessed, we need to canonicalize it, else
500 it may be a symlink in a 'write allowed' directory pointing to a file in a
501 directory we should not have write access to.
502
503 With something like coreutils-5.0, we have two problems:
504 1) One of the tests checks if getcwd() can return a path longer than
505 PATH_MAX. This test then tries to create a dir which even while
506 created local (mkdir("conftest2")), it ends up being resolved with
507 a name that is much larger than PATH_MAX. The problem now is that
508 canonicalize() have undefined behaviour when the path was too long
509 (returned wrongly truncated paths, etc), and pass the wrong path to
510 before_syscall() (causing the bogus sandbox violations).
511 2) The ecanonicalize() function we used, along with the canonicalize()
512 function did not support longer than PATH_MAX. This is partly a
513 cause for 1), but the error checking (rather lack of it) of calls
514 to erealpath() in canonicalize() was the prime reason for 1).
515
516 As we do not use this canonicalized name to call the function, we resolve this
517 by fixing canonicalize() to do better error checking, and ecanonicalize() as
518 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
519 While they will resolve paths properly now, and can check if a write/read is
520 allowed, the functions called from the sandboxed environment will still work
521 as expected.
522
523 This should resolve bug #21766.
524
525 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
526 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
527 it (bug #16298).
528
529 Problem is that for some reason locale fopen's locale.alias with mode "rm".
530
531 -------------------------------------------------------
532 nosferatu root # grep fopen locale.log
533 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
534 nosferatu root #
535 --------------------------------------------------------
536
537 I checked the source of locale, but it have fopen with mode 'r', so
538 not sure where the "rm" mode comes from. Anyhow, changed the check in
539 before_syscall_open_char() to also see mode "rm" as readonly.
540
541 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
542
543 Add glibc-2.3 support.
544
545 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
546
547 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
548 operations releated to preload, as well as only try to modify ld.so.preload
549 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
550 not using ld.so.preload. Fix to not write this instance of sandbox's pid
551 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
552
553 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
554
555 Changed the LD to CC for hppa.
556
557 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
558
559 Killed the previous changes I made.
560
561 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
562
563 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
564
565 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
566
567 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
568
569 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
570
571 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
572 for this fix.
573
574 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
575
576 sandbox_futils defined a dirname() function that was masking the same
577 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
578 '/usr/lib/portage/bi/'). Fixed function to return expected results and
579 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
580 11231.
581
582 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
583
584 Fix a segfault in libsandbox.c if canonicalize() was called with
585 first parameter = NULL.
586
587 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
588
589 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
590 cleanup() for this.
591
592 Change cleanup() in sandbox.c not to exit with fail status if
593 the pidsfile is missing. We really should still display sandbox
594 violations if they occured.
595
596 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
597
598 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
599 the last sandbox running.
600
601 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
602
603 Major cleanups to mainly libsandbox.c again.
604
605 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
606
607 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
608 parties involved should please contact me so that we can fix it.
609
610 Add opendir wrapper to libsandbox.c.
611
612 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
613
614 Do some more cleanups to ecanonicalize(), as it dropped filenames in
615 rare cases (after my symlink cleanups), and caused glibc to bork.
616 These fixes went into canonicalize.c.
617
618 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
619
620 Fix spawn_shell() and main() in sandbox.c to properly return fail
621 status.
622
623 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
624
625 The new canonicalize() function in libsandbox.c also resolved symlinks,
626 which caused on cleaning sandbox errors if the symlink pointed to a
627 file in the live root. Ripped out canonicalize() and realpath() from
628 glibc; removed the symlink stuff, and changed them to ecanonicalize()
629 and erealpath().
630
631 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
632
633 Ripped out all the wrappers, and implemented those of InstallWatch.
634 Losts of cleanups and bugfixes. Implement a execve that forces
635 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
636 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
637 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
638 parts; it now have an install target.
639
640 Reformat the whole thing to look somewhat like the reworked sandbox.c
641 and new sandbox.h and sandbox_futils.c from:
642
643 Brad House <brad@mainstreetsoftworks.com>.
644
645 Additional Copyrights now due to the InstallWatch code:
646
647 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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