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Revision 157 - (show annotations) (download)
Fri Aug 5 13:55:08 2005 UTC (8 years, 11 months ago) by azarah
File size: 28267 byte(s)
If we are called from the command line, do not care about PORTAGE_TMPDIR,
and make the current directory the work directory.  Also rename the variable
portage_tmp_dir to work_dir.

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

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