/[path-sandbox]/trunk/ChangeLog
Gentoo

Contents of /trunk/ChangeLog

Parent Directory Parent Directory | Revision Log Revision Log


Revision 189 - (show annotations) (download)
Thu Dec 1 09:46:17 2005 UTC (8 years, 8 months ago) by azarah
File size: 30845 byte(s)
Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
symbol map, and all non-exported symbols are local.  Cleanup getcwd.c, as
the generic getcwd for older 2.4 kernels do not work properly anyhow, and
just makes things slower.  Some other warning fixes.

1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 01 Dec 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, Makefile.am,
6 localdecls.h, scripts/Makefile.am, scripts/gen_symbol_version_map.awk,
7 scripts/gen_symbol_header.awk, src/Makefile.am, src/symbols.in,
8 src/libsandbox.c, src/getcwd.c, src/sandbox.c, data/sandbox.bashrc:
9
10 Use versioned symbols on supported libc's for functions we wrap, as well as
11 provide all versions of specific functions. Some syntax cleanups.
12
13 Only check SANDBOX_ACTIVE, and not its value. More BASH_ENV fixes.
14
15 Rename configure.in to configure.ac.
16
17 Fix non-versioned libc's to also prepend '__' to internal symbols by using
18 strong aliases.
19
20 Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
21 symbol map, and all non-exported symbols are local. Cleanup getcwd.c, as
22 the generic getcwd for older 2.4 kernels do not work properly anyhow, and
23 just makes things slower. Some other warning fixes.
24
25 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
26 sandbox_fdutils.c:
27
28 Detect if we on 64bit arch automatically.
29
30 Update contact email. Fix quoting.
31
32 Revert 64bit arch test, as we should build the 32bit version without full
33 path checking as well, and add --enable-multilib switch to configure.
34
35 * sandbox-1.2.14 (2005/11/28)
36
37 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
38 sandbox.c, sandbox.h, sandbox.bashrc:
39
40 Check generic getcwd()'s return as well for validity, bug #101728.
41
42 Cleanup environ variables.
43
44 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
45 to readonly in sandbox.bashrc.
46
47 Make sure we use our bashrc.
48
49 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
50
51 Do not pass mode to true_open and true_open64 if not needed. Should fix a
52 segfault in some cases.
53
54 * sandbox-1.2.13 (2005/09/12)
55
56 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
57
58 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
59 itself.
60
61 Make libsb_fini() do cleanup a bit more complete just in case we get another
62 uClibc 'call preloaded library fini before that of app' issue ... probably
63 will not help much, but we try.
64
65 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
66
67 Also allow symlink() system call to operate on a symlink in a writable path
68 that points to non-writable path, bug #104711.
69
70 * sandbox-1.2.12 (2005/08/05)
71
72 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
73 sandbox.h:
74
75 Do not give an access violation if the access() system call do not have
76 write/read access - it does not actually modify, so we only need to return
77 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
78 bug #101433.
79
80 If we are called from the command line, do not care about PORTAGE_TMPDIR,
81 and make the current directory the work directory. Also rename the variable
82 portage_tmp_dir to work_dir.
83
84 Remove the tmp_dir variable - we do not need it.
85
86 Improve error handling for get_sandbox_*_envvar() functions.
87
88 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
89
90 Still do normal log if debugging is requested.
91
92 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
93 to only enable if equal to "1" or "yes".
94
95 Add /dev/tts to write permit, bug #42809.
96
97 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
98 sandbox_futils.c:
99
100 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
101 in libsandbox .. bug #100309.
102
103 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
104
105 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
106
107 * sandbox-1.2.11 (2005/07/14)
108
109 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
110 Fix getcwd, bug #98419.
111
112 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
113 libsandbox.c:
114 - Try to cleanup and make error handling/printing consistent.
115 - Remove old logs if present and conflicting with current.
116 - Fix compile error with previous change, and return rather then exit().
117
118 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
119 sandbox.h, sandbox_futils.c:
120 - Fix possible segfault in env init code.
121 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
122 write to /var/log/sandbox/, so in theory do not need all that.
123 - Redo the interface of the get_* functions so that we do not leak memory.
124 - Remove sandbox_dir and co - we are not using it anymore.
125 - Remove unused includes and variables.
126 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
127 OUTSIDE_LIBSANDBOX is not defined.
128 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
129 printing's last line not honouring NOCOLOR.
130
131 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
132 libsandbox.c:
133 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
134 write to it.
135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
136 - Add check_prefixes() with major cleanup on check_access().
137 - Cleanup init_env_entries() and check_prefixes().
138
139 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
140 sandbox_futils.c, libsandbox.c:
141 Remove unused 'pids file' code.
142
143 * sandbox-1.2.10 (2005/07/03)
144
145 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
146 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
147
148 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
149 General cleanups:
150 - Remove fooling around with exit codes - we error out on presence of a log
151 anyhow.
152 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
153 appropriate there.
154
155 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
156 Cleanup the fail_nametoolong stuff a bit more.
157
158 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
159 Remove hopefully the last ld.so.preload bits we do not use anymore.
160
161 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
162 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
163 in check_syscall(). Should speed things up a bit (at least for the getcwd()
164 and long path name test it goes down to under a second, and not 10+ seconds
165 like before). Also warn if we skip checking due to the canonicalized path
166 being too long.
167
168 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
169 More comment/readability cleanups.
170
171 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
172 sandbox_futils.c, libsandbox.c:
173 Some strncpy/strncat and other cleanups.
174
175 * sandbox-1.2.9 (2005/06/09)
176
177 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
178 Move symlink hack down a bit to try and minimize on the amount of lstat()
179 calls we do.
180
181 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
182 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
183
184 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
185 Add wrapper for access() function, bug #85413.
186
187 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
188 Use generic getcwd() implementation from uclibc - should be more portable
189 and looks a bit cleaner.
190
191 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
192 Make sure our true_* pointers are initialized to NULL, and that we check for
193 all references that they are valid.
194
195 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
196 Be default we will fail if the path name we try to canonicalize is too long.
197 This however could cause issues with some things (bug #94630 and #21766), so
198 if fail_nametoolong == 0, canonicalize() will return a null length string and
199 do not fail.
200
201 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
202 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
203 make sure we re-export the new TMPDIR environment variable.
204
205 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
206 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
207 by Marcus D. Hanwell <cryos@gentoo.org>.
208
209 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
210 Add /dev/console to write list, bug #38588.
211
212 * sandbox-1.2.8 (2005/05/13)
213
214 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
215 sandbox.h, sandbox_futils.c:
216 General cleanups.
217
218 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
219 sandbox.h:
220 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
221
222 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
223 sandbox.h, sandbox_futils.c:
224 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
225 to use TMPDIR if present in environment.
226
227 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
228 Remove sandbox_log_file from main() as its no longer used.
229
230 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
231 sandbox_futils.c:
232 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
233 if already exported when sandbox started). Fix get_sandbox_log() and new
234 get_sandbox_debug_log() to not use already exported environment variables if
235 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
236 SB_PATH_MAX fixes.
237
238 * sandbox-1.2.7 (2005/05/12)
239
240 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
241 sandbox_futils.c:
242 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
243
244 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
245 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
246 with '(null)' in it if we did not call sandbox with absolute path.
247
248 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
249 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
250 for the child.
251
252 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
253 Remove global preload_adaptable as it is no longer used.
254
255 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
256 Rewrite environment stuff to only be set when execve'ing the child process
257 to try and avoid issues like bug #91541 that causes sandbox to crash if
258 we set LD_PRELOAD sandbox side already.
259
260 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
261 Move print_sandbox_log() up to make things neater.
262
263 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
264 Remove load_preload_libs(), as its not used anymore.
265
266 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
267 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
268
269 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
270 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
271
272 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
273 Remove ld.so.preload crap - we are not going to use it again.
274
275 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
276 Fix typo in code that checks if we got valid group information, causing a
277 segmentation fault, bug #91637.
278
279 * sandbox-1.2.6 (2005/05/10)
280
281 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
282 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
283 for some odd reason, bug #91541.
284
285 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
286 Fix typo (sizeof -> strlen).
287
288 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
289 rewrote the sbcontext caching code so it accounts for env changes since lib
290 initialization.
291
292 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
293 We create libctest.c via configure, so no need to keep it around. Do some
294 cleanup related to libctest.c and libctest during configure.
295
296 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
297 Add rename support of symlinks pointing to protected files/directories.
298
299 * sandbox-1.2.5 (2005/05/04)
300
301 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
302 sandbox.bashrc:
303 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
304 already set, init of the env vars fails for some reason, so do this later on,
305 and do not warn (bug #91431).
306
307 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
308 sandbox.bashrc:
309 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
310
311 * sandbox-1.2.4 (2005/05/03)
312
313 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
314 Do not init the env entries with each call, as it creates too many calls to
315 lstat, etc. Should speedup things a bit, bug #91040.
316
317 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
318 Add /dev/pty to default write list. Noticed by Morfic.
319
320 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
321 sandbox.h:
322 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
323 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
324
325 * sandbox-1.2.3 (2005/04/29)
326
327 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
328 Do not check for (*&#$(* CXX or F77.
329
330 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
331 Do not append '/' to pathname in filter_path() if it already ends with it.
332
333 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
334 With az's help, clean up autotools to work with cross-compiling.
335
336 * sandbox-1.2.2 (2005/04/28)
337
338 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
339 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
340 have issues; bug #90592.
341
342 * sandbox-1.2.1 (2005/04/23)
343
344 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
345 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
346 Make sure all functions used in libsandbox.c is declared static. Define
347 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
348 linking with its object. Hopefully this will fix bug #90153.
349
350 * sandbox-1.2 (2005/04/23)
351
352 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
353 Allow lchown a symlink in write-allowed path pointing to write-denied
354 target.
355
356 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
357 Also show resolved symlink names in the log.
358
359 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
360 Seems -nostdlib was the problem with the constructor/destructor - remove it
361 from Makefile.am, and change the constructor/destructor names again.
362
363 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
364 Also rename the _init() and _fini() declarations.
365
366 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
367 Fixup the constructor/destructor function names again (they should be _init()
368 and _fini() it seems, and not being called caused sandbox_lib_path to be
369 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
370 Add both the path in given SANDBOX_x variable, as well as its symlink
371 resolved path in init_env_entries(). Modify filter_path() to be able to
372 resolve paths without resolving symlinks, as well as to be able to resolve
373 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
374 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
375 for bug #31019 cause access violations if we try to remove a symlink that is
376 not in protected path, but points to a protected path. Fix a memory leak in
377 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
378 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
379 (pid_string was uninitialized). General syntax cleanups.
380
381 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
382 infamous "pids file is not a regular file" w/out newline bug.
383
384 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
385 Correct libc_version path detection, since it was screwing up if libdir !=
386 "/lib/".
387
388 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
389 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
390
391 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
392 Fix symbols.in not added to dist.
393
394 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
395 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
396 White space fixes.
397
398 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
399 configure.in, getcwd.c, libsandbox.c, symbols.in:
400 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
401 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
402 for glibc and other libc's that use this. Update libsandbox.c to use these
403 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
404 process unset it.
405
406 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
407 killed off _init and _fini in favor of
408 void __attribute__ ((constructor)) init_func and
409 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
410
411 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
412 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
413 having the hick-ups.
414
415 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
416 Makefile.am: Fixed compilation.
417
418 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
419 Gutted the bugger so it stops checking for a c++ and fortran compiler.
420 Do *not* regenerate aclocal.m4 for making a release until a better
421 solution is created.
422
423 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
424 Removal of more hardcoded paths.
425
426 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
427 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
428
429 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
430 Sandbox is now autotooled, create-localdecls needs to be killed and the code
431 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
432 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
433 To get to a point of testing, automake && autoconf; created requisite files w/
434 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
435 /lib and /usr/lib/portage/bin.
436
437 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
438 closing out bug #70225, potential overflow of the sandbox_pids_file var.
439
440 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
441 (think it was at least) allows intermixing of code and data segments. bug #70351
442 should be fixed by this.
443
444 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
445 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
446
447 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
448 Seth Robertson that tracked down all adjuct flags for read operations that
449 do not invoke a write operation.
450
451 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
452 Another fix from jstubbs regarding a free() on a stack variable for the
453 environment -- tracking now prevents extraneous free()'s segfault.
454
455 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
456 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
457 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
458 Also remove the errno = ESUCCESS settings as documentation points out that
459 a library isn't allowed to do that.
460
461 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
462 file_security_check() function to check random potential exploits on files
463 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
464 the 'system-crippling' exploits (bug 21923) and catches a few other
465 potential problems.
466
467 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
468 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
469
470 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
471 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
472 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
473
474 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
475 Fix permissions and group of pids file and logs. Permissions should be 0664
476 and group should be 'portage'. Bug #34260.
477
478 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
479 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
480 to the real execve (in our execve wrapper). Seems that on some arches (sparc
481 among others) do not allow us to tamper with the readonly copy passed to
482 execve, so pass our own copy of the environment. Bug #42290.
483
484 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
485 Changed tail to head and added a notice about duration of glibc check.
486
487 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
488 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
489 as there isn't a guarentee that it is dynamic.
490
491 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
492 If 'file' passed to before_syscall(const char *func, const char *file) is
493 invalid, we should set errno to ENOENT, and not EINVAL. This should
494 close bug #32238.
495
496 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
497 Fix a bug that occurs mainly on 64bit arch, where the file passed to
498 the functions we wrap, is invalid, and then cause canonicalize to pass
499 garbage to before_syscall(), thanks to great detective work from
500 Andrea Luzzardi <al@sig11.org> (bug #29846).
501
502 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
503 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
504
505 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
506 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
507 only checked the destination patch, and not the source, so we could move
508 a protected file to a unprotected directory, and then delete/modify it.
509 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
510
511 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
512 Added python2.3 to the predict section/variable.
513
514 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
515 sandbox.h, sandbox_futils.c :
516 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
517 it is not set, it will revert to its old value.
518
519 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
520 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
521 rather than failing with a violation, bug #29748.
522
523 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
524 Fix canonicalize() to ignore calls with path = "".
525
526 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
527 sandbox_futils.c, canonicalize.c :
528 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
529 call handled strings larger than PATH_MAX (bug #21766). It however does not
530 work the same on 2.4 kernels.
531
532 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
533 do not need the system call. We use the default getcwd() function via a
534 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
535 means the current directory was removed, OR that the the system call for
536 getcwd failed (curious is that it do not fail and return NULL or set
537 errno, but rather just truncate the retured directory - usually from the
538 start), and if so, we use the generic getcwd() function (__egetcwd). Note
539 that we do not use the generic version all the time, as it calls lstat()
540 a great number of times, and performance degrade much.
541
542 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
543 libsandbox.c :
544 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
545
546 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
547 create-localdecls :
548 When checking path names of files accessed, we need to canonicalize it, else
549 it may be a symlink in a 'write allowed' directory pointing to a file in a
550 directory we should not have write access to.
551
552 With something like coreutils-5.0, we have two problems:
553 1) One of the tests checks if getcwd() can return a path longer than
554 PATH_MAX. This test then tries to create a dir which even while
555 created local (mkdir("conftest2")), it ends up being resolved with
556 a name that is much larger than PATH_MAX. The problem now is that
557 canonicalize() have undefined behaviour when the path was too long
558 (returned wrongly truncated paths, etc), and pass the wrong path to
559 before_syscall() (causing the bogus sandbox violations).
560 2) The ecanonicalize() function we used, along with the canonicalize()
561 function did not support longer than PATH_MAX. This is partly a
562 cause for 1), but the error checking (rather lack of it) of calls
563 to erealpath() in canonicalize() was the prime reason for 1).
564
565 As we do not use this canonicalized name to call the function, we resolve this
566 by fixing canonicalize() to do better error checking, and ecanonicalize() as
567 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
568 While they will resolve paths properly now, and can check if a write/read is
569 allowed, the functions called from the sandboxed environment will still work
570 as expected.
571
572 This should resolve bug #21766.
573
574 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
575 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
576 it (bug #16298).
577
578 Problem is that for some reason locale fopen's locale.alias with mode "rm".
579
580 -------------------------------------------------------
581 nosferatu root # grep fopen locale.log
582 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
583 nosferatu root #
584 --------------------------------------------------------
585
586 I checked the source of locale, but it have fopen with mode 'r', so
587 not sure where the "rm" mode comes from. Anyhow, changed the check in
588 before_syscall_open_char() to also see mode "rm" as readonly.
589
590 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
591
592 Add glibc-2.3 support.
593
594 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
595
596 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
597 operations releated to preload, as well as only try to modify ld.so.preload
598 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
599 not using ld.so.preload. Fix to not write this instance of sandbox's pid
600 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
601
602 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
603
604 Changed the LD to CC for hppa.
605
606 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
607
608 Killed the previous changes I made.
609
610 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
611
612 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
613
614 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
615
616 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
617
618 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
619
620 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
621 for this fix.
622
623 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
624
625 sandbox_futils defined a dirname() function that was masking the same
626 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
627 '/usr/lib/portage/bi/'). Fixed function to return expected results and
628 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
629 11231.
630
631 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
632
633 Fix a segfault in libsandbox.c if canonicalize() was called with
634 first parameter = NULL.
635
636 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
637
638 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
639 cleanup() for this.
640
641 Change cleanup() in sandbox.c not to exit with fail status if
642 the pidsfile is missing. We really should still display sandbox
643 violations if they occured.
644
645 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
646
647 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
648 the last sandbox running.
649
650 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
651
652 Major cleanups to mainly libsandbox.c again.
653
654 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
655
656 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
657 parties involved should please contact me so that we can fix it.
658
659 Add opendir wrapper to libsandbox.c.
660
661 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
662
663 Do some more cleanups to ecanonicalize(), as it dropped filenames in
664 rare cases (after my symlink cleanups), and caused glibc to bork.
665 These fixes went into canonicalize.c.
666
667 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
668
669 Fix spawn_shell() and main() in sandbox.c to properly return fail
670 status.
671
672 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
673
674 The new canonicalize() function in libsandbox.c also resolved symlinks,
675 which caused on cleaning sandbox errors if the symlink pointed to a
676 file in the live root. Ripped out canonicalize() and realpath() from
677 glibc; removed the symlink stuff, and changed them to ecanonicalize()
678 and erealpath().
679
680 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
681
682 Ripped out all the wrappers, and implemented those of InstallWatch.
683 Losts of cleanups and bugfixes. Implement a execve that forces
684 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
685 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
686 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
687 parts; it now have an install target.
688
689 Reformat the whole thing to look somewhat like the reworked sandbox.c
690 and new sandbox.h and sandbox_futils.c from:
691
692 Brad House <brad@mainstreetsoftworks.com>.
693
694 Additional Copyrights now due to the InstallWatch code:
695
696 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

Properties

Name Value
svn:eol-style native
svn:keywords Author Date Id Revision

  ViewVC Help
Powered by ViewVC 1.1.20