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Revision 170 - (show annotations) (download)
Tue Nov 1 16:02:30 2005 UTC (8 years, 9 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 29193 byte(s)
Do not pass mode to true_open and true_open64 if not needed.  Should fix a
segfault in some cases.

1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
6
7 Do not pass mode to true_open and true_open64 if not needed. Should fix a
8 segfault in some cases.
9
10 * sandbox-1.2.13 (2005/09/12)
11
12 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
13
14 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
15 itself.
16
17 Make libsb_fini() do cleanup a bit more complete just in case we get another
18 uClibc 'call preloaded library fini before that of app' issue ... probably
19 will not help much, but we try.
20
21 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
22
23 Also allow symlink() system call to operate on a symlink in a writable path
24 that points to non-writable path, bug #104711.
25
26 * sandbox-1.2.12 (2005/08/05)
27
28 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
29 sandbox.h:
30
31 Do not give an access violation if the access() system call do not have
32 write/read access - it does not actually modify, so we only need to return
33 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
34 bug #101433.
35
36 If we are called from the command line, do not care about PORTAGE_TMPDIR,
37 and make the current directory the work directory. Also rename the variable
38 portage_tmp_dir to work_dir.
39
40 Remove the tmp_dir variable - we do not need it.
41
42 Improve error handling for get_sandbox_*_envvar() functions.
43
44 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
45
46 Still do normal log if debugging is requested.
47
48 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
49 to only enable if equal to "1" or "yes".
50
51 Add /dev/tts to write permit, bug #42809.
52
53 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
54 sandbox_futils.c:
55
56 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
57 in libsandbox .. bug #100309.
58
59 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
60
61 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
62
63 * sandbox-1.2.11 (2005/07/14)
64
65 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
66 Fix getcwd, bug #98419.
67
68 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
69 libsandbox.c:
70 - Try to cleanup and make error handling/printing consistent.
71 - Remove old logs if present and conflicting with current.
72 - Fix compile error with previous change, and return rather then exit().
73
74 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
75 sandbox.h, sandbox_futils.c:
76 - Fix possible segfault in env init code.
77 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
78 write to /var/log/sandbox/, so in theory do not need all that.
79 - Redo the interface of the get_* functions so that we do not leak memory.
80 - Remove sandbox_dir and co - we are not using it anymore.
81 - Remove unused includes and variables.
82 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
83 OUTSIDE_LIBSANDBOX is not defined.
84 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
85 printing's last line not honouring NOCOLOR.
86
87 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
88 libsandbox.c:
89 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
90 write to it.
91 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
92 - Add check_prefixes() with major cleanup on check_access().
93 - Cleanup init_env_entries() and check_prefixes().
94
95 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
96 sandbox_futils.c, libsandbox.c:
97 Remove unused 'pids file' code.
98
99 * sandbox-1.2.10 (2005/07/03)
100
101 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
102 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
103
104 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
105 General cleanups:
106 - Remove fooling around with exit codes - we error out on presence of a log
107 anyhow.
108 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
109 appropriate there.
110
111 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
112 Cleanup the fail_nametoolong stuff a bit more.
113
114 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
115 Remove hopefully the last ld.so.preload bits we do not use anymore.
116
117 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
118 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
119 in check_syscall(). Should speed things up a bit (at least for the getcwd()
120 and long path name test it goes down to under a second, and not 10+ seconds
121 like before). Also warn if we skip checking due to the canonicalized path
122 being too long.
123
124 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
125 More comment/readability cleanups.
126
127 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
128 sandbox_futils.c, libsandbox.c:
129 Some strncpy/strncat and other cleanups.
130
131 * sandbox-1.2.9 (2005/06/09)
132
133 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
134 Move symlink hack down a bit to try and minimize on the amount of lstat()
135 calls we do.
136
137 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
138 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
139
140 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
141 Add wrapper for access() function, bug #85413.
142
143 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
144 Use generic getcwd() implementation from uclibc - should be more portable
145 and looks a bit cleaner.
146
147 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
148 Make sure our true_* pointers are initialized to NULL, and that we check for
149 all references that they are valid.
150
151 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
152 Be default we will fail if the path name we try to canonicalize is too long.
153 This however could cause issues with some things (bug #94630 and #21766), so
154 if fail_nametoolong == 0, canonicalize() will return a null length string and
155 do not fail.
156
157 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
158 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
159 make sure we re-export the new TMPDIR environment variable.
160
161 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
162 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
163 by Marcus D. Hanwell <cryos@gentoo.org>.
164
165 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
166 Add /dev/console to write list, bug #38588.
167
168 * sandbox-1.2.8 (2005/05/13)
169
170 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
171 sandbox.h, sandbox_futils.c:
172 General cleanups.
173
174 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
175 sandbox.h:
176 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
177
178 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
179 sandbox.h, sandbox_futils.c:
180 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
181 to use TMPDIR if present in environment.
182
183 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
184 Remove sandbox_log_file from main() as its no longer used.
185
186 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
187 sandbox_futils.c:
188 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
189 if already exported when sandbox started). Fix get_sandbox_log() and new
190 get_sandbox_debug_log() to not use already exported environment variables if
191 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
192 SB_PATH_MAX fixes.
193
194 * sandbox-1.2.7 (2005/05/12)
195
196 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
197 sandbox_futils.c:
198 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
199
200 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
201 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
202 with '(null)' in it if we did not call sandbox with absolute path.
203
204 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
205 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
206 for the child.
207
208 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
209 Remove global preload_adaptable as it is no longer used.
210
211 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
212 Rewrite environment stuff to only be set when execve'ing the child process
213 to try and avoid issues like bug #91541 that causes sandbox to crash if
214 we set LD_PRELOAD sandbox side already.
215
216 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
217 Move print_sandbox_log() up to make things neater.
218
219 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
220 Remove load_preload_libs(), as its not used anymore.
221
222 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
223 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
224
225 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
226 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
227
228 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
229 Remove ld.so.preload crap - we are not going to use it again.
230
231 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
232 Fix typo in code that checks if we got valid group information, causing a
233 segmentation fault, bug #91637.
234
235 * sandbox-1.2.6 (2005/05/10)
236
237 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
238 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
239 for some odd reason, bug #91541.
240
241 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
242 Fix typo (sizeof -> strlen).
243
244 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
245 rewrote the sbcontext caching code so it accounts for env changes since lib
246 initialization.
247
248 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
249 We create libctest.c via configure, so no need to keep it around. Do some
250 cleanup related to libctest.c and libctest during configure.
251
252 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
253 Add rename support of symlinks pointing to protected files/directories.
254
255 * sandbox-1.2.5 (2005/05/04)
256
257 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
258 sandbox.bashrc:
259 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
260 already set, init of the env vars fails for some reason, so do this later on,
261 and do not warn (bug #91431).
262
263 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
264 sandbox.bashrc:
265 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
266
267 * sandbox-1.2.4 (2005/05/03)
268
269 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
270 Do not init the env entries with each call, as it creates too many calls to
271 lstat, etc. Should speedup things a bit, bug #91040.
272
273 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
274 Add /dev/pty to default write list. Noticed by Morfic.
275
276 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
277 sandbox.h:
278 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
279 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
280
281 * sandbox-1.2.3 (2005/04/29)
282
283 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
284 Do not check for (*&#$(* CXX or F77.
285
286 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
287 Do not append '/' to pathname in filter_path() if it already ends with it.
288
289 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
290 With az's help, clean up autotools to work with cross-compiling.
291
292 * sandbox-1.2.2 (2005/04/28)
293
294 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
295 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
296 have issues; bug #90592.
297
298 * sandbox-1.2.1 (2005/04/23)
299
300 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
301 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
302 Make sure all functions used in libsandbox.c is declared static. Define
303 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
304 linking with its object. Hopefully this will fix bug #90153.
305
306 * sandbox-1.2 (2005/04/23)
307
308 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
309 Allow lchown a symlink in write-allowed path pointing to write-denied
310 target.
311
312 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
313 Also show resolved symlink names in the log.
314
315 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
316 Seems -nostdlib was the problem with the constructor/destructor - remove it
317 from Makefile.am, and change the constructor/destructor names again.
318
319 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
320 Also rename the _init() and _fini() declarations.
321
322 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
323 Fixup the constructor/destructor function names again (they should be _init()
324 and _fini() it seems, and not being called caused sandbox_lib_path to be
325 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
326 Add both the path in given SANDBOX_x variable, as well as its symlink
327 resolved path in init_env_entries(). Modify filter_path() to be able to
328 resolve paths without resolving symlinks, as well as to be able to resolve
329 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
330 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
331 for bug #31019 cause access violations if we try to remove a symlink that is
332 not in protected path, but points to a protected path. Fix a memory leak in
333 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
334 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
335 (pid_string was uninitialized). General syntax cleanups.
336
337 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
338 infamous "pids file is not a regular file" w/out newline bug.
339
340 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
341 Correct libc_version path detection, since it was screwing up if libdir !=
342 "/lib/".
343
344 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
345 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
346
347 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
348 Fix symbols.in not added to dist.
349
350 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
351 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
352 White space fixes.
353
354 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
355 configure.in, getcwd.c, libsandbox.c, symbols.in:
356 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
357 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
358 for glibc and other libc's that use this. Update libsandbox.c to use these
359 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
360 process unset it.
361
362 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
363 killed off _init and _fini in favor of
364 void __attribute__ ((constructor)) init_func and
365 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
366
367 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
368 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
369 having the hick-ups.
370
371 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
372 Makefile.am: Fixed compilation.
373
374 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
375 Gutted the bugger so it stops checking for a c++ and fortran compiler.
376 Do *not* regenerate aclocal.m4 for making a release until a better
377 solution is created.
378
379 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
380 Removal of more hardcoded paths.
381
382 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
383 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
384
385 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
386 Sandbox is now autotooled, create-localdecls needs to be killed and the code
387 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
388 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
389 To get to a point of testing, automake && autoconf; created requisite files w/
390 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
391 /lib and /usr/lib/portage/bin.
392
393 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
394 closing out bug #70225, potential overflow of the sandbox_pids_file var.
395
396 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
397 (think it was at least) allows intermixing of code and data segments. bug #70351
398 should be fixed by this.
399
400 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
401 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
402
403 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
404 Seth Robertson that tracked down all adjuct flags for read operations that
405 do not invoke a write operation.
406
407 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
408 Another fix from jstubbs regarding a free() on a stack variable for the
409 environment -- tracking now prevents extraneous free()'s segfault.
410
411 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
412 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
413 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
414 Also remove the errno = ESUCCESS settings as documentation points out that
415 a library isn't allowed to do that.
416
417 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
418 file_security_check() function to check random potential exploits on files
419 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
420 the 'system-crippling' exploits (bug 21923) and catches a few other
421 potential problems.
422
423 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
424 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
425
426 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
427 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
428 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
429
430 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
431 Fix permissions and group of pids file and logs. Permissions should be 0664
432 and group should be 'portage'. Bug #34260.
433
434 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
435 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
436 to the real execve (in our execve wrapper). Seems that on some arches (sparc
437 among others) do not allow us to tamper with the readonly copy passed to
438 execve, so pass our own copy of the environment. Bug #42290.
439
440 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
441 Changed tail to head and added a notice about duration of glibc check.
442
443 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
444 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
445 as there isn't a guarentee that it is dynamic.
446
447 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
448 If 'file' passed to before_syscall(const char *func, const char *file) is
449 invalid, we should set errno to ENOENT, and not EINVAL. This should
450 close bug #32238.
451
452 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
453 Fix a bug that occurs mainly on 64bit arch, where the file passed to
454 the functions we wrap, is invalid, and then cause canonicalize to pass
455 garbage to before_syscall(), thanks to great detective work from
456 Andrea Luzzardi <al@sig11.org> (bug #29846).
457
458 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
459 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
460
461 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
462 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
463 only checked the destination patch, and not the source, so we could move
464 a protected file to a unprotected directory, and then delete/modify it.
465 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
466
467 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
468 Added python2.3 to the predict section/variable.
469
470 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
471 sandbox.h, sandbox_futils.c :
472 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
473 it is not set, it will revert to its old value.
474
475 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
476 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
477 rather than failing with a violation, bug #29748.
478
479 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
480 Fix canonicalize() to ignore calls with path = "".
481
482 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
483 sandbox_futils.c, canonicalize.c :
484 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
485 call handled strings larger than PATH_MAX (bug #21766). It however does not
486 work the same on 2.4 kernels.
487
488 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
489 do not need the system call. We use the default getcwd() function via a
490 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
491 means the current directory was removed, OR that the the system call for
492 getcwd failed (curious is that it do not fail and return NULL or set
493 errno, but rather just truncate the retured directory - usually from the
494 start), and if so, we use the generic getcwd() function (__egetcwd). Note
495 that we do not use the generic version all the time, as it calls lstat()
496 a great number of times, and performance degrade much.
497
498 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
499 libsandbox.c :
500 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
501
502 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
503 create-localdecls :
504 When checking path names of files accessed, we need to canonicalize it, else
505 it may be a symlink in a 'write allowed' directory pointing to a file in a
506 directory we should not have write access to.
507
508 With something like coreutils-5.0, we have two problems:
509 1) One of the tests checks if getcwd() can return a path longer than
510 PATH_MAX. This test then tries to create a dir which even while
511 created local (mkdir("conftest2")), it ends up being resolved with
512 a name that is much larger than PATH_MAX. The problem now is that
513 canonicalize() have undefined behaviour when the path was too long
514 (returned wrongly truncated paths, etc), and pass the wrong path to
515 before_syscall() (causing the bogus sandbox violations).
516 2) The ecanonicalize() function we used, along with the canonicalize()
517 function did not support longer than PATH_MAX. This is partly a
518 cause for 1), but the error checking (rather lack of it) of calls
519 to erealpath() in canonicalize() was the prime reason for 1).
520
521 As we do not use this canonicalized name to call the function, we resolve this
522 by fixing canonicalize() to do better error checking, and ecanonicalize() as
523 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
524 While they will resolve paths properly now, and can check if a write/read is
525 allowed, the functions called from the sandboxed environment will still work
526 as expected.
527
528 This should resolve bug #21766.
529
530 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
531 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
532 it (bug #16298).
533
534 Problem is that for some reason locale fopen's locale.alias with mode "rm".
535
536 -------------------------------------------------------
537 nosferatu root # grep fopen locale.log
538 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
539 nosferatu root #
540 --------------------------------------------------------
541
542 I checked the source of locale, but it have fopen with mode 'r', so
543 not sure where the "rm" mode comes from. Anyhow, changed the check in
544 before_syscall_open_char() to also see mode "rm" as readonly.
545
546 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
547
548 Add glibc-2.3 support.
549
550 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
551
552 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
553 operations releated to preload, as well as only try to modify ld.so.preload
554 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
555 not using ld.so.preload. Fix to not write this instance of sandbox's pid
556 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
557
558 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
559
560 Changed the LD to CC for hppa.
561
562 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
563
564 Killed the previous changes I made.
565
566 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
567
568 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
569
570 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
571
572 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
573
574 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
575
576 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
577 for this fix.
578
579 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
580
581 sandbox_futils defined a dirname() function that was masking the same
582 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
583 '/usr/lib/portage/bi/'). Fixed function to return expected results and
584 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
585 11231.
586
587 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
588
589 Fix a segfault in libsandbox.c if canonicalize() was called with
590 first parameter = NULL.
591
592 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
593
594 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
595 cleanup() for this.
596
597 Change cleanup() in sandbox.c not to exit with fail status if
598 the pidsfile is missing. We really should still display sandbox
599 violations if they occured.
600
601 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
602
603 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
604 the last sandbox running.
605
606 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
607
608 Major cleanups to mainly libsandbox.c again.
609
610 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
611
612 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
613 parties involved should please contact me so that we can fix it.
614
615 Add opendir wrapper to libsandbox.c.
616
617 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
618
619 Do some more cleanups to ecanonicalize(), as it dropped filenames in
620 rare cases (after my symlink cleanups), and caused glibc to bork.
621 These fixes went into canonicalize.c.
622
623 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
624
625 Fix spawn_shell() and main() in sandbox.c to properly return fail
626 status.
627
628 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
629
630 The new canonicalize() function in libsandbox.c also resolved symlinks,
631 which caused on cleaning sandbox errors if the symlink pointed to a
632 file in the live root. Ripped out canonicalize() and realpath() from
633 glibc; removed the symlink stuff, and changed them to ecanonicalize()
634 and erealpath().
635
636 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
637
638 Ripped out all the wrappers, and implemented those of InstallWatch.
639 Losts of cleanups and bugfixes. Implement a execve that forces
640 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
641 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
642 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
643 parts; it now have an install target.
644
645 Reformat the whole thing to look somewhat like the reworked sandbox.c
646 and new sandbox.h and sandbox_futils.c from:
647
648 Brad House <brad@mainstreetsoftworks.com>.
649
650 Additional Copyrights now due to the InstallWatch code:
651
652 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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