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Revision 187 - (show annotations) (download)
Thu Dec 1 01:00:40 2005 UTC (8 years, 11 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 30559 byte(s)
Fix non-versioned libc's to also prepend '__' to internal symbols by using
strong aliases.

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

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