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Revision 181 - (show annotations) (download)
Mon Nov 28 11:35:30 2005 UTC (8 years, 7 months ago) by azarah
File size: 29913 byte(s)
Revert 64bit arch test, as we should build the 32bit version without full
path checking as well, and add --enable-multilib switch to configure.

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

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