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Revision 173 - (show annotations) (download)
Mon Nov 28 10:05:52 2005 UTC (8 years, 9 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 29393 byte(s)
Cleanup environ variables.
1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
6 sandbox.c, sandbox.h:
7
8 Check generic getcwd()'s return as well for validity, bug #101728.
9
10 Cleanup environ variables.
11
12 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
13
14 Do not pass mode to true_open and true_open64 if not needed. Should fix a
15 segfault in some cases.
16
17 * sandbox-1.2.13 (2005/09/12)
18
19 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
20
21 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
22 itself.
23
24 Make libsb_fini() do cleanup a bit more complete just in case we get another
25 uClibc 'call preloaded library fini before that of app' issue ... probably
26 will not help much, but we try.
27
28 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
29
30 Also allow symlink() system call to operate on a symlink in a writable path
31 that points to non-writable path, bug #104711.
32
33 * sandbox-1.2.12 (2005/08/05)
34
35 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
36 sandbox.h:
37
38 Do not give an access violation if the access() system call do not have
39 write/read access - it does not actually modify, so we only need to return
40 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
41 bug #101433.
42
43 If we are called from the command line, do not care about PORTAGE_TMPDIR,
44 and make the current directory the work directory. Also rename the variable
45 portage_tmp_dir to work_dir.
46
47 Remove the tmp_dir variable - we do not need it.
48
49 Improve error handling for get_sandbox_*_envvar() functions.
50
51 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
52
53 Still do normal log if debugging is requested.
54
55 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
56 to only enable if equal to "1" or "yes".
57
58 Add /dev/tts to write permit, bug #42809.
59
60 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
61 sandbox_futils.c:
62
63 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
64 in libsandbox .. bug #100309.
65
66 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
67
68 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
69
70 * sandbox-1.2.11 (2005/07/14)
71
72 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
73 Fix getcwd, bug #98419.
74
75 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
76 libsandbox.c:
77 - Try to cleanup and make error handling/printing consistent.
78 - Remove old logs if present and conflicting with current.
79 - Fix compile error with previous change, and return rather then exit().
80
81 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
82 sandbox.h, sandbox_futils.c:
83 - Fix possible segfault in env init code.
84 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
85 write to /var/log/sandbox/, so in theory do not need all that.
86 - Redo the interface of the get_* functions so that we do not leak memory.
87 - Remove sandbox_dir and co - we are not using it anymore.
88 - Remove unused includes and variables.
89 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
90 OUTSIDE_LIBSANDBOX is not defined.
91 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
92 printing's last line not honouring NOCOLOR.
93
94 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
95 libsandbox.c:
96 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
97 write to it.
98 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
99 - Add check_prefixes() with major cleanup on check_access().
100 - Cleanup init_env_entries() and check_prefixes().
101
102 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
103 sandbox_futils.c, libsandbox.c:
104 Remove unused 'pids file' code.
105
106 * sandbox-1.2.10 (2005/07/03)
107
108 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
109 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
110
111 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
112 General cleanups:
113 - Remove fooling around with exit codes - we error out on presence of a log
114 anyhow.
115 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
116 appropriate there.
117
118 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
119 Cleanup the fail_nametoolong stuff a bit more.
120
121 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
122 Remove hopefully the last ld.so.preload bits we do not use anymore.
123
124 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
125 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
126 in check_syscall(). Should speed things up a bit (at least for the getcwd()
127 and long path name test it goes down to under a second, and not 10+ seconds
128 like before). Also warn if we skip checking due to the canonicalized path
129 being too long.
130
131 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
132 More comment/readability cleanups.
133
134 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
135 sandbox_futils.c, libsandbox.c:
136 Some strncpy/strncat and other cleanups.
137
138 * sandbox-1.2.9 (2005/06/09)
139
140 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
141 Move symlink hack down a bit to try and minimize on the amount of lstat()
142 calls we do.
143
144 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
145 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
146
147 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
148 Add wrapper for access() function, bug #85413.
149
150 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
151 Use generic getcwd() implementation from uclibc - should be more portable
152 and looks a bit cleaner.
153
154 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
155 Make sure our true_* pointers are initialized to NULL, and that we check for
156 all references that they are valid.
157
158 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
159 Be default we will fail if the path name we try to canonicalize is too long.
160 This however could cause issues with some things (bug #94630 and #21766), so
161 if fail_nametoolong == 0, canonicalize() will return a null length string and
162 do not fail.
163
164 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
165 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
166 make sure we re-export the new TMPDIR environment variable.
167
168 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
169 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
170 by Marcus D. Hanwell <cryos@gentoo.org>.
171
172 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
173 Add /dev/console to write list, bug #38588.
174
175 * sandbox-1.2.8 (2005/05/13)
176
177 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
178 sandbox.h, sandbox_futils.c:
179 General cleanups.
180
181 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
182 sandbox.h:
183 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
184
185 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
186 sandbox.h, sandbox_futils.c:
187 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
188 to use TMPDIR if present in environment.
189
190 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
191 Remove sandbox_log_file from main() as its no longer used.
192
193 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
194 sandbox_futils.c:
195 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
196 if already exported when sandbox started). Fix get_sandbox_log() and new
197 get_sandbox_debug_log() to not use already exported environment variables if
198 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
199 SB_PATH_MAX fixes.
200
201 * sandbox-1.2.7 (2005/05/12)
202
203 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
204 sandbox_futils.c:
205 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
206
207 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
208 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
209 with '(null)' in it if we did not call sandbox with absolute path.
210
211 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
212 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
213 for the child.
214
215 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
216 Remove global preload_adaptable as it is no longer used.
217
218 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
219 Rewrite environment stuff to only be set when execve'ing the child process
220 to try and avoid issues like bug #91541 that causes sandbox to crash if
221 we set LD_PRELOAD sandbox side already.
222
223 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
224 Move print_sandbox_log() up to make things neater.
225
226 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
227 Remove load_preload_libs(), as its not used anymore.
228
229 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
230 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
231
232 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
233 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
234
235 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
236 Remove ld.so.preload crap - we are not going to use it again.
237
238 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
239 Fix typo in code that checks if we got valid group information, causing a
240 segmentation fault, bug #91637.
241
242 * sandbox-1.2.6 (2005/05/10)
243
244 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
245 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
246 for some odd reason, bug #91541.
247
248 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
249 Fix typo (sizeof -> strlen).
250
251 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
252 rewrote the sbcontext caching code so it accounts for env changes since lib
253 initialization.
254
255 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
256 We create libctest.c via configure, so no need to keep it around. Do some
257 cleanup related to libctest.c and libctest during configure.
258
259 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
260 Add rename support of symlinks pointing to protected files/directories.
261
262 * sandbox-1.2.5 (2005/05/04)
263
264 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
265 sandbox.bashrc:
266 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
267 already set, init of the env vars fails for some reason, so do this later on,
268 and do not warn (bug #91431).
269
270 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
271 sandbox.bashrc:
272 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
273
274 * sandbox-1.2.4 (2005/05/03)
275
276 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
277 Do not init the env entries with each call, as it creates too many calls to
278 lstat, etc. Should speedup things a bit, bug #91040.
279
280 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
281 Add /dev/pty to default write list. Noticed by Morfic.
282
283 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
284 sandbox.h:
285 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
286 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
287
288 * sandbox-1.2.3 (2005/04/29)
289
290 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
291 Do not check for (*&#$(* CXX or F77.
292
293 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
294 Do not append '/' to pathname in filter_path() if it already ends with it.
295
296 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
297 With az's help, clean up autotools to work with cross-compiling.
298
299 * sandbox-1.2.2 (2005/04/28)
300
301 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
302 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
303 have issues; bug #90592.
304
305 * sandbox-1.2.1 (2005/04/23)
306
307 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
308 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
309 Make sure all functions used in libsandbox.c is declared static. Define
310 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
311 linking with its object. Hopefully this will fix bug #90153.
312
313 * sandbox-1.2 (2005/04/23)
314
315 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
316 Allow lchown a symlink in write-allowed path pointing to write-denied
317 target.
318
319 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
320 Also show resolved symlink names in the log.
321
322 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
323 Seems -nostdlib was the problem with the constructor/destructor - remove it
324 from Makefile.am, and change the constructor/destructor names again.
325
326 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
327 Also rename the _init() and _fini() declarations.
328
329 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
330 Fixup the constructor/destructor function names again (they should be _init()
331 and _fini() it seems, and not being called caused sandbox_lib_path to be
332 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
333 Add both the path in given SANDBOX_x variable, as well as its symlink
334 resolved path in init_env_entries(). Modify filter_path() to be able to
335 resolve paths without resolving symlinks, as well as to be able to resolve
336 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
337 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
338 for bug #31019 cause access violations if we try to remove a symlink that is
339 not in protected path, but points to a protected path. Fix a memory leak in
340 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
341 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
342 (pid_string was uninitialized). General syntax cleanups.
343
344 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
345 infamous "pids file is not a regular file" w/out newline bug.
346
347 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
348 Correct libc_version path detection, since it was screwing up if libdir !=
349 "/lib/".
350
351 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
352 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
353
354 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
355 Fix symbols.in not added to dist.
356
357 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
358 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
359 White space fixes.
360
361 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
362 configure.in, getcwd.c, libsandbox.c, symbols.in:
363 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
364 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
365 for glibc and other libc's that use this. Update libsandbox.c to use these
366 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
367 process unset it.
368
369 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
370 killed off _init and _fini in favor of
371 void __attribute__ ((constructor)) init_func and
372 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
373
374 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
375 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
376 having the hick-ups.
377
378 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
379 Makefile.am: Fixed compilation.
380
381 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
382 Gutted the bugger so it stops checking for a c++ and fortran compiler.
383 Do *not* regenerate aclocal.m4 for making a release until a better
384 solution is created.
385
386 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
387 Removal of more hardcoded paths.
388
389 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
390 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
391
392 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
393 Sandbox is now autotooled, create-localdecls needs to be killed and the code
394 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
395 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
396 To get to a point of testing, automake && autoconf; created requisite files w/
397 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
398 /lib and /usr/lib/portage/bin.
399
400 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
401 closing out bug #70225, potential overflow of the sandbox_pids_file var.
402
403 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
404 (think it was at least) allows intermixing of code and data segments. bug #70351
405 should be fixed by this.
406
407 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
408 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
409
410 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
411 Seth Robertson that tracked down all adjuct flags for read operations that
412 do not invoke a write operation.
413
414 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
415 Another fix from jstubbs regarding a free() on a stack variable for the
416 environment -- tracking now prevents extraneous free()'s segfault.
417
418 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
419 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
420 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
421 Also remove the errno = ESUCCESS settings as documentation points out that
422 a library isn't allowed to do that.
423
424 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
425 file_security_check() function to check random potential exploits on files
426 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
427 the 'system-crippling' exploits (bug 21923) and catches a few other
428 potential problems.
429
430 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
431 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
432
433 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
434 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
435 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
436
437 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
438 Fix permissions and group of pids file and logs. Permissions should be 0664
439 and group should be 'portage'. Bug #34260.
440
441 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
442 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
443 to the real execve (in our execve wrapper). Seems that on some arches (sparc
444 among others) do not allow us to tamper with the readonly copy passed to
445 execve, so pass our own copy of the environment. Bug #42290.
446
447 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
448 Changed tail to head and added a notice about duration of glibc check.
449
450 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
451 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
452 as there isn't a guarentee that it is dynamic.
453
454 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
455 If 'file' passed to before_syscall(const char *func, const char *file) is
456 invalid, we should set errno to ENOENT, and not EINVAL. This should
457 close bug #32238.
458
459 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
460 Fix a bug that occurs mainly on 64bit arch, where the file passed to
461 the functions we wrap, is invalid, and then cause canonicalize to pass
462 garbage to before_syscall(), thanks to great detective work from
463 Andrea Luzzardi <al@sig11.org> (bug #29846).
464
465 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
466 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
467
468 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
469 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
470 only checked the destination patch, and not the source, so we could move
471 a protected file to a unprotected directory, and then delete/modify it.
472 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
473
474 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
475 Added python2.3 to the predict section/variable.
476
477 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
478 sandbox.h, sandbox_futils.c :
479 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
480 it is not set, it will revert to its old value.
481
482 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
483 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
484 rather than failing with a violation, bug #29748.
485
486 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487 Fix canonicalize() to ignore calls with path = "".
488
489 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
490 sandbox_futils.c, canonicalize.c :
491 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
492 call handled strings larger than PATH_MAX (bug #21766). It however does not
493 work the same on 2.4 kernels.
494
495 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
496 do not need the system call. We use the default getcwd() function via a
497 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
498 means the current directory was removed, OR that the the system call for
499 getcwd failed (curious is that it do not fail and return NULL or set
500 errno, but rather just truncate the retured directory - usually from the
501 start), and if so, we use the generic getcwd() function (__egetcwd). Note
502 that we do not use the generic version all the time, as it calls lstat()
503 a great number of times, and performance degrade much.
504
505 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
506 libsandbox.c :
507 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
508
509 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
510 create-localdecls :
511 When checking path names of files accessed, we need to canonicalize it, else
512 it may be a symlink in a 'write allowed' directory pointing to a file in a
513 directory we should not have write access to.
514
515 With something like coreutils-5.0, we have two problems:
516 1) One of the tests checks if getcwd() can return a path longer than
517 PATH_MAX. This test then tries to create a dir which even while
518 created local (mkdir("conftest2")), it ends up being resolved with
519 a name that is much larger than PATH_MAX. The problem now is that
520 canonicalize() have undefined behaviour when the path was too long
521 (returned wrongly truncated paths, etc), and pass the wrong path to
522 before_syscall() (causing the bogus sandbox violations).
523 2) The ecanonicalize() function we used, along with the canonicalize()
524 function did not support longer than PATH_MAX. This is partly a
525 cause for 1), but the error checking (rather lack of it) of calls
526 to erealpath() in canonicalize() was the prime reason for 1).
527
528 As we do not use this canonicalized name to call the function, we resolve this
529 by fixing canonicalize() to do better error checking, and ecanonicalize() as
530 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
531 While they will resolve paths properly now, and can check if a write/read is
532 allowed, the functions called from the sandboxed environment will still work
533 as expected.
534
535 This should resolve bug #21766.
536
537 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
538 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
539 it (bug #16298).
540
541 Problem is that for some reason locale fopen's locale.alias with mode "rm".
542
543 -------------------------------------------------------
544 nosferatu root # grep fopen locale.log
545 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
546 nosferatu root #
547 --------------------------------------------------------
548
549 I checked the source of locale, but it have fopen with mode 'r', so
550 not sure where the "rm" mode comes from. Anyhow, changed the check in
551 before_syscall_open_char() to also see mode "rm" as readonly.
552
553 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
554
555 Add glibc-2.3 support.
556
557 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
558
559 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
560 operations releated to preload, as well as only try to modify ld.so.preload
561 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
562 not using ld.so.preload. Fix to not write this instance of sandbox's pid
563 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
564
565 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
566
567 Changed the LD to CC for hppa.
568
569 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
570
571 Killed the previous changes I made.
572
573 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
574
575 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
576
577 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
578
579 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
580
581 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
582
583 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
584 for this fix.
585
586 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
587
588 sandbox_futils defined a dirname() function that was masking the same
589 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
590 '/usr/lib/portage/bi/'). Fixed function to return expected results and
591 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
592 11231.
593
594 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
595
596 Fix a segfault in libsandbox.c if canonicalize() was called with
597 first parameter = NULL.
598
599 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
600
601 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
602 cleanup() for this.
603
604 Change cleanup() in sandbox.c not to exit with fail status if
605 the pidsfile is missing. We really should still display sandbox
606 violations if they occured.
607
608 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
609
610 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
611 the last sandbox running.
612
613 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
614
615 Major cleanups to mainly libsandbox.c again.
616
617 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
618
619 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
620 parties involved should please contact me so that we can fix it.
621
622 Add opendir wrapper to libsandbox.c.
623
624 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
625
626 Do some more cleanups to ecanonicalize(), as it dropped filenames in
627 rare cases (after my symlink cleanups), and caused glibc to bork.
628 These fixes went into canonicalize.c.
629
630 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
631
632 Fix spawn_shell() and main() in sandbox.c to properly return fail
633 status.
634
635 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
636
637 The new canonicalize() function in libsandbox.c also resolved symlinks,
638 which caused on cleaning sandbox errors if the symlink pointed to a
639 file in the live root. Ripped out canonicalize() and realpath() from
640 glibc; removed the symlink stuff, and changed them to ecanonicalize()
641 and erealpath().
642
643 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
644
645 Ripped out all the wrappers, and implemented those of InstallWatch.
646 Losts of cleanups and bugfixes. Implement a execve that forces
647 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
648 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
649 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
650 parts; it now have an install target.
651
652 Reformat the whole thing to look somewhat like the reworked sandbox.c
653 and new sandbox.h and sandbox_futils.c from:
654
655 Brad House <brad@mainstreetsoftworks.com>.
656
657 Additional Copyrights now due to the InstallWatch code:
658
659 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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