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Revision 138 - (show annotations) (download)
Thu Jul 7 13:01:31 2005 UTC (9 years ago) by azarah
File size: 26101 byte(s)
Fix possible segfault in env init code.
1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
6 Fix possible segfault in env init code.
7
8 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
9 libsandbox.c:
10 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
11 write to it.
12 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
13 - Add check_prefixes() with major cleanup on check_access().
14 - Cleanup init_env_entries() and check_prefixes().
15
16 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
17 sandbox_futils.c, libsandbox.c:
18 Remove unused 'pids file' code.
19
20 * sandbox-1.2.10 (2005/07/03)
21
22 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
23 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
24
25 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
26 General cleanups:
27 - Remove fooling around with exit codes - we error out on presence of a log
28 anyhow.
29 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
30 appropriate there.
31
32 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
33 Cleanup the fail_nametoolong stuff a bit more.
34
35 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
36 Remove hopefully the last ld.so.preload bits we do not use anymore.
37
38 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
39 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
40 in check_syscall(). Should speed things up a bit (at least for the getcwd()
41 and long path name test it goes down to under a second, and not 10+ seconds
42 like before). Also warn if we skip checking due to the canonicalized path
43 being too long.
44
45 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
46 More comment/readability cleanups.
47
48 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
49 sandbox_futils.c, libsandbox.c:
50 Some strncpy/strncat and other cleanups.
51
52 * sandbox-1.2.9 (2005/06/09)
53
54 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
55 Move symlink hack down a bit to try and minimize on the amount of lstat()
56 calls we do.
57
58 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
59 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
60
61 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
62 Add wrapper for access() function, bug #85413.
63
64 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
65 Use generic getcwd() implementation from uclibc - should be more portable
66 and looks a bit cleaner.
67
68 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
69 Make sure our true_* pointers are initialized to NULL, and that we check for
70 all references that they are valid.
71
72 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
73 Be default we will fail if the path name we try to canonicalize is too long.
74 This however could cause issues with some things (bug #94630 and #21766), so
75 if fail_nametoolong == 0, canonicalize() will return a null length string and
76 do not fail.
77
78 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
79 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
80 make sure we re-export the new TMPDIR environment variable.
81
82 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
83 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
84 by Marcus D. Hanwell <cryos@gentoo.org>.
85
86 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
87 Add /dev/console to write list, bug #38588.
88
89 * sandbox-1.2.8 (2005/05/13)
90
91 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
92 sandbox.h, sandbox_futils.c:
93 General cleanups.
94
95 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
96 sandbox.h:
97 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
98
99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
100 sandbox.h, sandbox_futils.c:
101 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
102 to use TMPDIR if present in environment.
103
104 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
105 Remove sandbox_log_file from main() as its no longer used.
106
107 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
108 sandbox_futils.c:
109 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
110 if already exported when sandbox started). Fix get_sandbox_log() and new
111 get_sandbox_debug_log() to not use already exported environment variables if
112 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
113 SB_PATH_MAX fixes.
114
115 * sandbox-1.2.7 (2005/05/12)
116
117 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
118 sandbox_futils.c:
119 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
120
121 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
122 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
123 with '(null)' in it if we did not call sandbox with absolute path.
124
125 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
126 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
127 for the child.
128
129 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
130 Remove global preload_adaptable as it is no longer used.
131
132 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
133 Rewrite environment stuff to only be set when execve'ing the child process
134 to try and avoid issues like bug #91541 that causes sandbox to crash if
135 we set LD_PRELOAD sandbox side already.
136
137 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
138 Move print_sandbox_log() up to make things neater.
139
140 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
141 Remove load_preload_libs(), as its not used anymore.
142
143 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
144 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
145
146 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
147 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
148
149 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
150 Remove ld.so.preload crap - we are not going to use it again.
151
152 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
153 Fix typo in code that checks if we got valid group information, causing a
154 segmentation fault, bug #91637.
155
156 * sandbox-1.2.6 (2005/05/10)
157
158 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
159 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
160 for some odd reason, bug #91541.
161
162 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
163 Fix typo (sizeof -> strlen).
164
165 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
166 rewrote the sbcontext caching code so it accounts for env changes since lib
167 initialization.
168
169 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
170 We create libctest.c via configure, so no need to keep it around. Do some
171 cleanup related to libctest.c and libctest during configure.
172
173 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
174 Add rename support of symlinks pointing to protected files/directories.
175
176 * sandbox-1.2.5 (2005/05/04)
177
178 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
179 sandbox.bashrc:
180 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
181 already set, init of the env vars fails for some reason, so do this later on,
182 and do not warn (bug #91431).
183
184 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
185 sandbox.bashrc:
186 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
187
188 * sandbox-1.2.4 (2005/05/03)
189
190 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
191 Do not init the env entries with each call, as it creates too many calls to
192 lstat, etc. Should speedup things a bit, bug #91040.
193
194 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
195 Add /dev/pty to default write list. Noticed by Morfic.
196
197 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
198 sandbox.h:
199 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
200 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
201
202 * sandbox-1.2.3 (2005/04/29)
203
204 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
205 Do not check for (*&#$(* CXX or F77.
206
207 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
208 Do not append '/' to pathname in filter_path() if it already ends with it.
209
210 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
211 With az's help, clean up autotools to work with cross-compiling.
212
213 * sandbox-1.2.2 (2005/04/28)
214
215 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
216 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
217 have issues; bug #90592.
218
219 * sandbox-1.2.1 (2005/04/23)
220
221 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
222 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
223 Make sure all functions used in libsandbox.c is declared static. Define
224 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
225 linking with its object. Hopefully this will fix bug #90153.
226
227 * sandbox-1.2 (2005/04/23)
228
229 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
230 Allow lchown a symlink in write-allowed path pointing to write-denied
231 target.
232
233 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
234 Also show resolved symlink names in the log.
235
236 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
237 Seems -nostdlib was the problem with the constructor/destructor - remove it
238 from Makefile.am, and change the constructor/destructor names again.
239
240 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
241 Also rename the _init() and _fini() declarations.
242
243 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
244 Fixup the constructor/destructor function names again (they should be _init()
245 and _fini() it seems, and not being called caused sandbox_lib_path to be
246 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
247 Add both the path in given SANDBOX_x variable, as well as its symlink
248 resolved path in init_env_entries(). Modify filter_path() to be able to
249 resolve paths without resolving symlinks, as well as to be able to resolve
250 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
251 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
252 for bug #31019 cause access violations if we try to remove a symlink that is
253 not in protected path, but points to a protected path. Fix a memory leak in
254 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
255 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
256 (pid_string was uninitialized). General syntax cleanups.
257
258 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
259 infamous "pids file is not a regular file" w/out newline bug.
260
261 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
262 Correct libc_version path detection, since it was screwing up if libdir !=
263 "/lib/".
264
265 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
266 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
267
268 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
269 Fix symbols.in not added to dist.
270
271 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
272 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
273 White space fixes.
274
275 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
276 configure.in, getcwd.c, libsandbox.c, symbols.in:
277 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
278 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
279 for glibc and other libc's that use this. Update libsandbox.c to use these
280 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
281 process unset it.
282
283 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
284 killed off _init and _fini in favor of
285 void __attribute__ ((constructor)) init_func and
286 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
287
288 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
289 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
290 having the hick-ups.
291
292 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
293 Makefile.am: Fixed compilation.
294
295 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
296 Gutted the bugger so it stops checking for a c++ and fortran compiler.
297 Do *not* regenerate aclocal.m4 for making a release until a better
298 solution is created.
299
300 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
301 Removal of more hardcoded paths.
302
303 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
304 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
305
306 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
307 Sandbox is now autotooled, create-localdecls needs to be killed and the code
308 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
309 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
310 To get to a point of testing, automake && autoconf; created requisite files w/
311 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
312 /lib and /usr/lib/portage/bin.
313
314 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
315 closing out bug #70225, potential overflow of the sandbox_pids_file var.
316
317 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
318 (think it was at least) allows intermixing of code and data segments. bug #70351
319 should be fixed by this.
320
321 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
322 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
323
324 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
325 Seth Robertson that tracked down all adjuct flags for read operations that
326 do not invoke a write operation.
327
328 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
329 Another fix from jstubbs regarding a free() on a stack variable for the
330 environment -- tracking now prevents extraneous free()'s segfault.
331
332 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
333 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
334 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
335 Also remove the errno = ESUCCESS settings as documentation points out that
336 a library isn't allowed to do that.
337
338 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
339 file_security_check() function to check random potential exploits on files
340 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
341 the 'system-crippling' exploits (bug 21923) and catches a few other
342 potential problems.
343
344 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
345 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
346
347 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
348 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
349 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
350
351 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
352 Fix permissions and group of pids file and logs. Permissions should be 0664
353 and group should be 'portage'. Bug #34260.
354
355 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
356 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
357 to the real execve (in our execve wrapper). Seems that on some arches (sparc
358 among others) do not allow us to tamper with the readonly copy passed to
359 execve, so pass our own copy of the environment. Bug #42290.
360
361 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
362 Changed tail to head and added a notice about duration of glibc check.
363
364 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
365 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
366 as there isn't a guarentee that it is dynamic.
367
368 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
369 If 'file' passed to before_syscall(const char *func, const char *file) is
370 invalid, we should set errno to ENOENT, and not EINVAL. This should
371 close bug #32238.
372
373 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
374 Fix a bug that occurs mainly on 64bit arch, where the file passed to
375 the functions we wrap, is invalid, and then cause canonicalize to pass
376 garbage to before_syscall(), thanks to great detective work from
377 Andrea Luzzardi <al@sig11.org> (bug #29846).
378
379 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
380 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
381
382 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
383 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
384 only checked the destination patch, and not the source, so we could move
385 a protected file to a unprotected directory, and then delete/modify it.
386 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
387
388 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
389 Added python2.3 to the predict section/variable.
390
391 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
392 sandbox.h, sandbox_futils.c :
393 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
394 it is not set, it will revert to its old value.
395
396 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
397 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
398 rather than failing with a violation, bug #29748.
399
400 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
401 Fix canonicalize() to ignore calls with path = "".
402
403 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
404 sandbox_futils.c, canonicalize.c :
405 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
406 call handled strings larger than PATH_MAX (bug #21766). It however does not
407 work the same on 2.4 kernels.
408
409 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
410 do not need the system call. We use the default getcwd() function via a
411 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
412 means the current directory was removed, OR that the the system call for
413 getcwd failed (curious is that it do not fail and return NULL or set
414 errno, but rather just truncate the retured directory - usually from the
415 start), and if so, we use the generic getcwd() function (__egetcwd). Note
416 that we do not use the generic version all the time, as it calls lstat()
417 a great number of times, and performance degrade much.
418
419 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
420 libsandbox.c :
421 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
422
423 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
424 create-localdecls :
425 When checking path names of files accessed, we need to canonicalize it, else
426 it may be a symlink in a 'write allowed' directory pointing to a file in a
427 directory we should not have write access to.
428
429 With something like coreutils-5.0, we have two problems:
430 1) One of the tests checks if getcwd() can return a path longer than
431 PATH_MAX. This test then tries to create a dir which even while
432 created local (mkdir("conftest2")), it ends up being resolved with
433 a name that is much larger than PATH_MAX. The problem now is that
434 canonicalize() have undefined behaviour when the path was too long
435 (returned wrongly truncated paths, etc), and pass the wrong path to
436 before_syscall() (causing the bogus sandbox violations).
437 2) The ecanonicalize() function we used, along with the canonicalize()
438 function did not support longer than PATH_MAX. This is partly a
439 cause for 1), but the error checking (rather lack of it) of calls
440 to erealpath() in canonicalize() was the prime reason for 1).
441
442 As we do not use this canonicalized name to call the function, we resolve this
443 by fixing canonicalize() to do better error checking, and ecanonicalize() as
444 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
445 While they will resolve paths properly now, and can check if a write/read is
446 allowed, the functions called from the sandboxed environment will still work
447 as expected.
448
449 This should resolve bug #21766.
450
451 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
452 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
453 it (bug #16298).
454
455 Problem is that for some reason locale fopen's locale.alias with mode "rm".
456
457 -------------------------------------------------------
458 nosferatu root # grep fopen locale.log
459 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
460 nosferatu root #
461 --------------------------------------------------------
462
463 I checked the source of locale, but it have fopen with mode 'r', so
464 not sure where the "rm" mode comes from. Anyhow, changed the check in
465 before_syscall_open_char() to also see mode "rm" as readonly.
466
467 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
468
469 Add glibc-2.3 support.
470
471 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
472
473 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
474 operations releated to preload, as well as only try to modify ld.so.preload
475 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
476 not using ld.so.preload. Fix to not write this instance of sandbox's pid
477 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
478
479 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
480
481 Changed the LD to CC for hppa.
482
483 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
484
485 Killed the previous changes I made.
486
487 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
488
489 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
490
491 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
492
493 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
494
495 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
496
497 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
498 for this fix.
499
500 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
501
502 sandbox_futils defined a dirname() function that was masking the same
503 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
504 '/usr/lib/portage/bi/'). Fixed function to return expected results and
505 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
506 11231.
507
508 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
509
510 Fix a segfault in libsandbox.c if canonicalize() was called with
511 first parameter = NULL.
512
513 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
514
515 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
516 cleanup() for this.
517
518 Change cleanup() in sandbox.c not to exit with fail status if
519 the pidsfile is missing. We really should still display sandbox
520 violations if they occured.
521
522 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
523
524 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
525 the last sandbox running.
526
527 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
528
529 Major cleanups to mainly libsandbox.c again.
530
531 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
532
533 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
534 parties involved should please contact me so that we can fix it.
535
536 Add opendir wrapper to libsandbox.c.
537
538 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
539
540 Do some more cleanups to ecanonicalize(), as it dropped filenames in
541 rare cases (after my symlink cleanups), and caused glibc to bork.
542 These fixes went into canonicalize.c.
543
544 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
545
546 Fix spawn_shell() and main() in sandbox.c to properly return fail
547 status.
548
549 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
550
551 The new canonicalize() function in libsandbox.c also resolved symlinks,
552 which caused on cleaning sandbox errors if the symlink pointed to a
553 file in the live root. Ripped out canonicalize() and realpath() from
554 glibc; removed the symlink stuff, and changed them to ecanonicalize()
555 and erealpath().
556
557 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
558
559 Ripped out all the wrappers, and implemented those of InstallWatch.
560 Losts of cleanups and bugfixes. Implement a execve that forces
561 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
562 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
563 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
564 parts; it now have an install target.
565
566 Reformat the whole thing to look somewhat like the reworked sandbox.c
567 and new sandbox.h and sandbox_futils.c from:
568
569 Brad House <brad@mainstreetsoftworks.com>.
570
571 Additional Copyrights now due to the InstallWatch code:
572
573 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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