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Mon Nov 28 11:13:17 2005 UTC (8 years, 9 months ago) by azarah
File size: 29732 byte(s)
Update contact email.  Fix quoting.
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:
6
7 Detect if we on 64bit arch automatically.
8
9 Update contact email. Fix quoting.
10
11 * sandbox-1.2.14 (2005/11/28)
12
13 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
14 sandbox.c, sandbox.h, sandbox.bashrc:
15
16 Check generic getcwd()'s return as well for validity, bug #101728.
17
18 Cleanup environ variables.
19
20 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
21 to readonly in sandbox.bashrc.
22
23 Make sure we use our bashrc.
24
25 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
26
27 Do not pass mode to true_open and true_open64 if not needed. Should fix a
28 segfault in some cases.
29
30 * sandbox-1.2.13 (2005/09/12)
31
32 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
33
34 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
35 itself.
36
37 Make libsb_fini() do cleanup a bit more complete just in case we get another
38 uClibc 'call preloaded library fini before that of app' issue ... probably
39 will not help much, but we try.
40
41 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
42
43 Also allow symlink() system call to operate on a symlink in a writable path
44 that points to non-writable path, bug #104711.
45
46 * sandbox-1.2.12 (2005/08/05)
47
48 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
49 sandbox.h:
50
51 Do not give an access violation if the access() system call do not have
52 write/read access - it does not actually modify, so we only need to return
53 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
54 bug #101433.
55
56 If we are called from the command line, do not care about PORTAGE_TMPDIR,
57 and make the current directory the work directory. Also rename the variable
58 portage_tmp_dir to work_dir.
59
60 Remove the tmp_dir variable - we do not need it.
61
62 Improve error handling for get_sandbox_*_envvar() functions.
63
64 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
65
66 Still do normal log if debugging is requested.
67
68 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
69 to only enable if equal to "1" or "yes".
70
71 Add /dev/tts to write permit, bug #42809.
72
73 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
74 sandbox_futils.c:
75
76 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
77 in libsandbox .. bug #100309.
78
79 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
80
81 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
82
83 * sandbox-1.2.11 (2005/07/14)
84
85 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
86 Fix getcwd, bug #98419.
87
88 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
89 libsandbox.c:
90 - Try to cleanup and make error handling/printing consistent.
91 - Remove old logs if present and conflicting with current.
92 - Fix compile error with previous change, and return rather then exit().
93
94 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
95 sandbox.h, sandbox_futils.c:
96 - Fix possible segfault in env init code.
97 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
98 write to /var/log/sandbox/, so in theory do not need all that.
99 - Redo the interface of the get_* functions so that we do not leak memory.
100 - Remove sandbox_dir and co - we are not using it anymore.
101 - Remove unused includes and variables.
102 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
103 OUTSIDE_LIBSANDBOX is not defined.
104 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
105 printing's last line not honouring NOCOLOR.
106
107 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
108 libsandbox.c:
109 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
110 write to it.
111 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
112 - Add check_prefixes() with major cleanup on check_access().
113 - Cleanup init_env_entries() and check_prefixes().
114
115 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
116 sandbox_futils.c, libsandbox.c:
117 Remove unused 'pids file' code.
118
119 * sandbox-1.2.10 (2005/07/03)
120
121 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
122 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
123
124 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
125 General cleanups:
126 - Remove fooling around with exit codes - we error out on presence of a log
127 anyhow.
128 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
129 appropriate there.
130
131 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
132 Cleanup the fail_nametoolong stuff a bit more.
133
134 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
135 Remove hopefully the last ld.so.preload bits we do not use anymore.
136
137 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
138 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
139 in check_syscall(). Should speed things up a bit (at least for the getcwd()
140 and long path name test it goes down to under a second, and not 10+ seconds
141 like before). Also warn if we skip checking due to the canonicalized path
142 being too long.
143
144 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
145 More comment/readability cleanups.
146
147 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
148 sandbox_futils.c, libsandbox.c:
149 Some strncpy/strncat and other cleanups.
150
151 * sandbox-1.2.9 (2005/06/09)
152
153 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
154 Move symlink hack down a bit to try and minimize on the amount of lstat()
155 calls we do.
156
157 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
158 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
159
160 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
161 Add wrapper for access() function, bug #85413.
162
163 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
164 Use generic getcwd() implementation from uclibc - should be more portable
165 and looks a bit cleaner.
166
167 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
168 Make sure our true_* pointers are initialized to NULL, and that we check for
169 all references that they are valid.
170
171 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
172 Be default we will fail if the path name we try to canonicalize is too long.
173 This however could cause issues with some things (bug #94630 and #21766), so
174 if fail_nametoolong == 0, canonicalize() will return a null length string and
175 do not fail.
176
177 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
178 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
179 make sure we re-export the new TMPDIR environment variable.
180
181 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
182 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
183 by Marcus D. Hanwell <cryos@gentoo.org>.
184
185 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
186 Add /dev/console to write list, bug #38588.
187
188 * sandbox-1.2.8 (2005/05/13)
189
190 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
191 sandbox.h, sandbox_futils.c:
192 General cleanups.
193
194 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
195 sandbox.h:
196 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
197
198 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
199 sandbox.h, sandbox_futils.c:
200 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
201 to use TMPDIR if present in environment.
202
203 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
204 Remove sandbox_log_file from main() as its no longer used.
205
206 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
207 sandbox_futils.c:
208 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
209 if already exported when sandbox started). Fix get_sandbox_log() and new
210 get_sandbox_debug_log() to not use already exported environment variables if
211 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
212 SB_PATH_MAX fixes.
213
214 * sandbox-1.2.7 (2005/05/12)
215
216 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
217 sandbox_futils.c:
218 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
219
220 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
221 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
222 with '(null)' in it if we did not call sandbox with absolute path.
223
224 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
225 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
226 for the child.
227
228 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
229 Remove global preload_adaptable as it is no longer used.
230
231 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
232 Rewrite environment stuff to only be set when execve'ing the child process
233 to try and avoid issues like bug #91541 that causes sandbox to crash if
234 we set LD_PRELOAD sandbox side already.
235
236 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
237 Move print_sandbox_log() up to make things neater.
238
239 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
240 Remove load_preload_libs(), as its not used anymore.
241
242 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
243 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
244
245 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
246 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
247
248 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
249 Remove ld.so.preload crap - we are not going to use it again.
250
251 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
252 Fix typo in code that checks if we got valid group information, causing a
253 segmentation fault, bug #91637.
254
255 * sandbox-1.2.6 (2005/05/10)
256
257 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
258 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
259 for some odd reason, bug #91541.
260
261 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
262 Fix typo (sizeof -> strlen).
263
264 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
265 rewrote the sbcontext caching code so it accounts for env changes since lib
266 initialization.
267
268 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
269 We create libctest.c via configure, so no need to keep it around. Do some
270 cleanup related to libctest.c and libctest during configure.
271
272 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
273 Add rename support of symlinks pointing to protected files/directories.
274
275 * sandbox-1.2.5 (2005/05/04)
276
277 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
278 sandbox.bashrc:
279 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
280 already set, init of the env vars fails for some reason, so do this later on,
281 and do not warn (bug #91431).
282
283 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
284 sandbox.bashrc:
285 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
286
287 * sandbox-1.2.4 (2005/05/03)
288
289 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
290 Do not init the env entries with each call, as it creates too many calls to
291 lstat, etc. Should speedup things a bit, bug #91040.
292
293 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
294 Add /dev/pty to default write list. Noticed by Morfic.
295
296 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
297 sandbox.h:
298 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
299 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
300
301 * sandbox-1.2.3 (2005/04/29)
302
303 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
304 Do not check for (*&#$(* CXX or F77.
305
306 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
307 Do not append '/' to pathname in filter_path() if it already ends with it.
308
309 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
310 With az's help, clean up autotools to work with cross-compiling.
311
312 * sandbox-1.2.2 (2005/04/28)
313
314 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
315 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
316 have issues; bug #90592.
317
318 * sandbox-1.2.1 (2005/04/23)
319
320 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
321 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
322 Make sure all functions used in libsandbox.c is declared static. Define
323 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
324 linking with its object. Hopefully this will fix bug #90153.
325
326 * sandbox-1.2 (2005/04/23)
327
328 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
329 Allow lchown a symlink in write-allowed path pointing to write-denied
330 target.
331
332 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
333 Also show resolved symlink names in the log.
334
335 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
336 Seems -nostdlib was the problem with the constructor/destructor - remove it
337 from Makefile.am, and change the constructor/destructor names again.
338
339 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
340 Also rename the _init() and _fini() declarations.
341
342 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
343 Fixup the constructor/destructor function names again (they should be _init()
344 and _fini() it seems, and not being called caused sandbox_lib_path to be
345 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
346 Add both the path in given SANDBOX_x variable, as well as its symlink
347 resolved path in init_env_entries(). Modify filter_path() to be able to
348 resolve paths without resolving symlinks, as well as to be able to resolve
349 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
350 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
351 for bug #31019 cause access violations if we try to remove a symlink that is
352 not in protected path, but points to a protected path. Fix a memory leak in
353 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
354 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
355 (pid_string was uninitialized). General syntax cleanups.
356
357 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
358 infamous "pids file is not a regular file" w/out newline bug.
359
360 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
361 Correct libc_version path detection, since it was screwing up if libdir !=
362 "/lib/".
363
364 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
365 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
366
367 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
368 Fix symbols.in not added to dist.
369
370 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
371 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
372 White space fixes.
373
374 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
375 configure.in, getcwd.c, libsandbox.c, symbols.in:
376 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
377 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
378 for glibc and other libc's that use this. Update libsandbox.c to use these
379 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
380 process unset it.
381
382 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
383 killed off _init and _fini in favor of
384 void __attribute__ ((constructor)) init_func and
385 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
386
387 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
388 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
389 having the hick-ups.
390
391 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
392 Makefile.am: Fixed compilation.
393
394 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
395 Gutted the bugger so it stops checking for a c++ and fortran compiler.
396 Do *not* regenerate aclocal.m4 for making a release until a better
397 solution is created.
398
399 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
400 Removal of more hardcoded paths.
401
402 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
403 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
404
405 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
406 Sandbox is now autotooled, create-localdecls needs to be killed and the code
407 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
408 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
409 To get to a point of testing, automake && autoconf; created requisite files w/
410 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
411 /lib and /usr/lib/portage/bin.
412
413 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
414 closing out bug #70225, potential overflow of the sandbox_pids_file var.
415
416 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
417 (think it was at least) allows intermixing of code and data segments. bug #70351
418 should be fixed by this.
419
420 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
421 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
422
423 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
424 Seth Robertson that tracked down all adjuct flags for read operations that
425 do not invoke a write operation.
426
427 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
428 Another fix from jstubbs regarding a free() on a stack variable for the
429 environment -- tracking now prevents extraneous free()'s segfault.
430
431 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
432 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
433 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
434 Also remove the errno = ESUCCESS settings as documentation points out that
435 a library isn't allowed to do that.
436
437 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
438 file_security_check() function to check random potential exploits on files
439 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
440 the 'system-crippling' exploits (bug 21923) and catches a few other
441 potential problems.
442
443 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
444 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
445
446 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
447 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
448 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
449
450 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
451 Fix permissions and group of pids file and logs. Permissions should be 0664
452 and group should be 'portage'. Bug #34260.
453
454 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
455 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
456 to the real execve (in our execve wrapper). Seems that on some arches (sparc
457 among others) do not allow us to tamper with the readonly copy passed to
458 execve, so pass our own copy of the environment. Bug #42290.
459
460 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
461 Changed tail to head and added a notice about duration of glibc check.
462
463 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
464 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
465 as there isn't a guarentee that it is dynamic.
466
467 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
468 If 'file' passed to before_syscall(const char *func, const char *file) is
469 invalid, we should set errno to ENOENT, and not EINVAL. This should
470 close bug #32238.
471
472 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
473 Fix a bug that occurs mainly on 64bit arch, where the file passed to
474 the functions we wrap, is invalid, and then cause canonicalize to pass
475 garbage to before_syscall(), thanks to great detective work from
476 Andrea Luzzardi <al@sig11.org> (bug #29846).
477
478 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
479 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
480
481 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
482 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
483 only checked the destination patch, and not the source, so we could move
484 a protected file to a unprotected directory, and then delete/modify it.
485 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
486
487 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
488 Added python2.3 to the predict section/variable.
489
490 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
491 sandbox.h, sandbox_futils.c :
492 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
493 it is not set, it will revert to its old value.
494
495 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
496 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
497 rather than failing with a violation, bug #29748.
498
499 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
500 Fix canonicalize() to ignore calls with path = "".
501
502 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
503 sandbox_futils.c, canonicalize.c :
504 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
505 call handled strings larger than PATH_MAX (bug #21766). It however does not
506 work the same on 2.4 kernels.
507
508 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
509 do not need the system call. We use the default getcwd() function via a
510 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
511 means the current directory was removed, OR that the the system call for
512 getcwd failed (curious is that it do not fail and return NULL or set
513 errno, but rather just truncate the retured directory - usually from the
514 start), and if so, we use the generic getcwd() function (__egetcwd). Note
515 that we do not use the generic version all the time, as it calls lstat()
516 a great number of times, and performance degrade much.
517
518 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
519 libsandbox.c :
520 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
521
522 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
523 create-localdecls :
524 When checking path names of files accessed, we need to canonicalize it, else
525 it may be a symlink in a 'write allowed' directory pointing to a file in a
526 directory we should not have write access to.
527
528 With something like coreutils-5.0, we have two problems:
529 1) One of the tests checks if getcwd() can return a path longer than
530 PATH_MAX. This test then tries to create a dir which even while
531 created local (mkdir("conftest2")), it ends up being resolved with
532 a name that is much larger than PATH_MAX. The problem now is that
533 canonicalize() have undefined behaviour when the path was too long
534 (returned wrongly truncated paths, etc), and pass the wrong path to
535 before_syscall() (causing the bogus sandbox violations).
536 2) The ecanonicalize() function we used, along with the canonicalize()
537 function did not support longer than PATH_MAX. This is partly a
538 cause for 1), but the error checking (rather lack of it) of calls
539 to erealpath() in canonicalize() was the prime reason for 1).
540
541 As we do not use this canonicalized name to call the function, we resolve this
542 by fixing canonicalize() to do better error checking, and ecanonicalize() as
543 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
544 While they will resolve paths properly now, and can check if a write/read is
545 allowed, the functions called from the sandboxed environment will still work
546 as expected.
547
548 This should resolve bug #21766.
549
550 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
551 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
552 it (bug #16298).
553
554 Problem is that for some reason locale fopen's locale.alias with mode "rm".
555
556 -------------------------------------------------------
557 nosferatu root # grep fopen locale.log
558 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
559 nosferatu root #
560 --------------------------------------------------------
561
562 I checked the source of locale, but it have fopen with mode 'r', so
563 not sure where the "rm" mode comes from. Anyhow, changed the check in
564 before_syscall_open_char() to also see mode "rm" as readonly.
565
566 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
567
568 Add glibc-2.3 support.
569
570 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
571
572 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
573 operations releated to preload, as well as only try to modify ld.so.preload
574 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
575 not using ld.so.preload. Fix to not write this instance of sandbox's pid
576 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
577
578 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
579
580 Changed the LD to CC for hppa.
581
582 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
583
584 Killed the previous changes I made.
585
586 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
587
588 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
589
590 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
591
592 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
593
594 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
595
596 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
597 for this fix.
598
599 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
600
601 sandbox_futils defined a dirname() function that was masking the same
602 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
603 '/usr/lib/portage/bi/'). Fixed function to return expected results and
604 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
605 11231.
606
607 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
608
609 Fix a segfault in libsandbox.c if canonicalize() was called with
610 first parameter = NULL.
611
612 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
613
614 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
615 cleanup() for this.
616
617 Change cleanup() in sandbox.c not to exit with fail status if
618 the pidsfile is missing. We really should still display sandbox
619 violations if they occured.
620
621 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
622
623 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
624 the last sandbox running.
625
626 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
627
628 Major cleanups to mainly libsandbox.c again.
629
630 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
631
632 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
633 parties involved should please contact me so that we can fix it.
634
635 Add opendir wrapper to libsandbox.c.
636
637 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
638
639 Do some more cleanups to ecanonicalize(), as it dropped filenames in
640 rare cases (after my symlink cleanups), and caused glibc to bork.
641 These fixes went into canonicalize.c.
642
643 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
644
645 Fix spawn_shell() and main() in sandbox.c to properly return fail
646 status.
647
648 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
649
650 The new canonicalize() function in libsandbox.c also resolved symlinks,
651 which caused on cleaning sandbox errors if the symlink pointed to a
652 file in the live root. Ripped out canonicalize() and realpath() from
653 glibc; removed the symlink stuff, and changed them to ecanonicalize()
654 and erealpath().
655
656 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
657
658 Ripped out all the wrappers, and implemented those of InstallWatch.
659 Losts of cleanups and bugfixes. Implement a execve that forces
660 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
661 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
662 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
663 parts; it now have an install target.
664
665 Reformat the whole thing to look somewhat like the reworked sandbox.c
666 and new sandbox.h and sandbox_futils.c from:
667
668 Brad House <brad@mainstreetsoftworks.com>.
669
670 Additional Copyrights now due to the InstallWatch code:
671
672 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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