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Revision 193 - (show annotations) (download)
Thu Dec 1 10:54:12 2005 UTC (8 years, 7 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 31080 byte(s)
Fixup SANDBOX_ON handling after already running changes.
1 # ChangeLog for Path Sandbox
2 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 # $Header$
4
5 01 Dec 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, Makefile.am,
6 localdecls.h, scripts/Makefile.am, scripts/gen_symbol_version_map.awk,
7 scripts/gen_symbol_header.awk, src/Makefile.am, src/symbols.in,
8 src/libsandbox.c, src/getcwd.c, src/sandbox.c, data/sandbox.bashrc:
9
10 Use versioned symbols on supported libc's for functions we wrap, as well as
11 provide all versions of specific functions. Some syntax cleanups.
12
13 Only check SANDBOX_ACTIVE, and not its value. More BASH_ENV fixes.
14
15 Rename configure.in to configure.ac.
16
17 Fix non-versioned libc's to also prepend '__' to internal symbols by using
18 strong aliases.
19
20 Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
21 symbol map, and all non-exported symbols are local. Cleanup getcwd.c, as
22 the generic getcwd for older 2.4 kernels do not work properly anyhow, and
23 just makes things slower. Some other warning fixes.
24
25 Rename src/symbols.in to src/symbols.h.in.
26
27 Cleanup local defines for egetcwd() and erealpath().
28
29 Rename filter_path() to resolve_path() and other renames for clarity.
30
31 Fixup SANDBOX_ON handling after already running changes.
32
33 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
34 sandbox_fdutils.c:
35
36 Detect if we on 64bit arch automatically.
37
38 Update contact email. Fix quoting.
39
40 Revert 64bit arch test, as we should build the 32bit version without full
41 path checking as well, and add --enable-multilib switch to configure.
42
43 * sandbox-1.2.14 (2005/11/28)
44
45 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
46 sandbox.c, sandbox.h, sandbox.bashrc:
47
48 Check generic getcwd()'s return as well for validity, bug #101728.
49
50 Cleanup environ variables.
51
52 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
53 to readonly in sandbox.bashrc.
54
55 Make sure we use our bashrc.
56
57 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58
59 Do not pass mode to true_open and true_open64 if not needed. Should fix a
60 segfault in some cases.
61
62 * sandbox-1.2.13 (2005/09/12)
63
64 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
65
66 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
67 itself.
68
69 Make libsb_fini() do cleanup a bit more complete just in case we get another
70 uClibc 'call preloaded library fini before that of app' issue ... probably
71 will not help much, but we try.
72
73 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
74
75 Also allow symlink() system call to operate on a symlink in a writable path
76 that points to non-writable path, bug #104711.
77
78 * sandbox-1.2.12 (2005/08/05)
79
80 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
81 sandbox.h:
82
83 Do not give an access violation if the access() system call do not have
84 write/read access - it does not actually modify, so we only need to return
85 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
86 bug #101433.
87
88 If we are called from the command line, do not care about PORTAGE_TMPDIR,
89 and make the current directory the work directory. Also rename the variable
90 portage_tmp_dir to work_dir.
91
92 Remove the tmp_dir variable - we do not need it.
93
94 Improve error handling for get_sandbox_*_envvar() functions.
95
96 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
97
98 Still do normal log if debugging is requested.
99
100 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
101 to only enable if equal to "1" or "yes".
102
103 Add /dev/tts to write permit, bug #42809.
104
105 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
106 sandbox_futils.c:
107
108 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
109 in libsandbox .. bug #100309.
110
111 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
112
113 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
114
115 * sandbox-1.2.11 (2005/07/14)
116
117 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
118 Fix getcwd, bug #98419.
119
120 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
121 libsandbox.c:
122 - Try to cleanup and make error handling/printing consistent.
123 - Remove old logs if present and conflicting with current.
124 - Fix compile error with previous change, and return rather then exit().
125
126 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
127 sandbox.h, sandbox_futils.c:
128 - Fix possible segfault in env init code.
129 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
130 write to /var/log/sandbox/, so in theory do not need all that.
131 - Redo the interface of the get_* functions so that we do not leak memory.
132 - Remove sandbox_dir and co - we are not using it anymore.
133 - Remove unused includes and variables.
134 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
135 OUTSIDE_LIBSANDBOX is not defined.
136 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
137 printing's last line not honouring NOCOLOR.
138
139 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
140 libsandbox.c:
141 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
142 write to it.
143 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
144 - Add check_prefixes() with major cleanup on check_access().
145 - Cleanup init_env_entries() and check_prefixes().
146
147 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
148 sandbox_futils.c, libsandbox.c:
149 Remove unused 'pids file' code.
150
151 * sandbox-1.2.10 (2005/07/03)
152
153 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
154 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
155
156 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
157 General cleanups:
158 - Remove fooling around with exit codes - we error out on presence of a log
159 anyhow.
160 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
161 appropriate there.
162
163 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
164 Cleanup the fail_nametoolong stuff a bit more.
165
166 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
167 Remove hopefully the last ld.so.preload bits we do not use anymore.
168
169 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
170 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
171 in check_syscall(). Should speed things up a bit (at least for the getcwd()
172 and long path name test it goes down to under a second, and not 10+ seconds
173 like before). Also warn if we skip checking due to the canonicalized path
174 being too long.
175
176 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
177 More comment/readability cleanups.
178
179 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
180 sandbox_futils.c, libsandbox.c:
181 Some strncpy/strncat and other cleanups.
182
183 * sandbox-1.2.9 (2005/06/09)
184
185 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
186 Move symlink hack down a bit to try and minimize on the amount of lstat()
187 calls we do.
188
189 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
190 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
191
192 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
193 Add wrapper for access() function, bug #85413.
194
195 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
196 Use generic getcwd() implementation from uclibc - should be more portable
197 and looks a bit cleaner.
198
199 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
200 Make sure our true_* pointers are initialized to NULL, and that we check for
201 all references that they are valid.
202
203 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
204 Be default we will fail if the path name we try to canonicalize is too long.
205 This however could cause issues with some things (bug #94630 and #21766), so
206 if fail_nametoolong == 0, canonicalize() will return a null length string and
207 do not fail.
208
209 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
210 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
211 make sure we re-export the new TMPDIR environment variable.
212
213 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
214 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
215 by Marcus D. Hanwell <cryos@gentoo.org>.
216
217 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
218 Add /dev/console to write list, bug #38588.
219
220 * sandbox-1.2.8 (2005/05/13)
221
222 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
223 sandbox.h, sandbox_futils.c:
224 General cleanups.
225
226 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
227 sandbox.h:
228 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
229
230 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
231 sandbox.h, sandbox_futils.c:
232 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
233 to use TMPDIR if present in environment.
234
235 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
236 Remove sandbox_log_file from main() as its no longer used.
237
238 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
239 sandbox_futils.c:
240 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
241 if already exported when sandbox started). Fix get_sandbox_log() and new
242 get_sandbox_debug_log() to not use already exported environment variables if
243 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
244 SB_PATH_MAX fixes.
245
246 * sandbox-1.2.7 (2005/05/12)
247
248 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
249 sandbox_futils.c:
250 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
251
252 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
253 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
254 with '(null)' in it if we did not call sandbox with absolute path.
255
256 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
257 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
258 for the child.
259
260 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
261 Remove global preload_adaptable as it is no longer used.
262
263 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
264 Rewrite environment stuff to only be set when execve'ing the child process
265 to try and avoid issues like bug #91541 that causes sandbox to crash if
266 we set LD_PRELOAD sandbox side already.
267
268 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
269 Move print_sandbox_log() up to make things neater.
270
271 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
272 Remove load_preload_libs(), as its not used anymore.
273
274 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
275 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
276
277 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
278 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
279
280 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
281 Remove ld.so.preload crap - we are not going to use it again.
282
283 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
284 Fix typo in code that checks if we got valid group information, causing a
285 segmentation fault, bug #91637.
286
287 * sandbox-1.2.6 (2005/05/10)
288
289 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
290 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
291 for some odd reason, bug #91541.
292
293 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
294 Fix typo (sizeof -> strlen).
295
296 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
297 rewrote the sbcontext caching code so it accounts for env changes since lib
298 initialization.
299
300 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
301 We create libctest.c via configure, so no need to keep it around. Do some
302 cleanup related to libctest.c and libctest during configure.
303
304 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
305 Add rename support of symlinks pointing to protected files/directories.
306
307 * sandbox-1.2.5 (2005/05/04)
308
309 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
310 sandbox.bashrc:
311 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
312 already set, init of the env vars fails for some reason, so do this later on,
313 and do not warn (bug #91431).
314
315 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
316 sandbox.bashrc:
317 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
318
319 * sandbox-1.2.4 (2005/05/03)
320
321 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
322 Do not init the env entries with each call, as it creates too many calls to
323 lstat, etc. Should speedup things a bit, bug #91040.
324
325 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
326 Add /dev/pty to default write list. Noticed by Morfic.
327
328 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
329 sandbox.h:
330 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
331 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
332
333 * sandbox-1.2.3 (2005/04/29)
334
335 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
336 Do not check for (*&#$(* CXX or F77.
337
338 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
339 Do not append '/' to pathname in filter_path() if it already ends with it.
340
341 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
342 With az's help, clean up autotools to work with cross-compiling.
343
344 * sandbox-1.2.2 (2005/04/28)
345
346 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
347 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
348 have issues; bug #90592.
349
350 * sandbox-1.2.1 (2005/04/23)
351
352 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
353 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
354 Make sure all functions used in libsandbox.c is declared static. Define
355 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
356 linking with its object. Hopefully this will fix bug #90153.
357
358 * sandbox-1.2 (2005/04/23)
359
360 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
361 Allow lchown a symlink in write-allowed path pointing to write-denied
362 target.
363
364 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
365 Also show resolved symlink names in the log.
366
367 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
368 Seems -nostdlib was the problem with the constructor/destructor - remove it
369 from Makefile.am, and change the constructor/destructor names again.
370
371 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
372 Also rename the _init() and _fini() declarations.
373
374 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
375 Fixup the constructor/destructor function names again (they should be _init()
376 and _fini() it seems, and not being called caused sandbox_lib_path to be
377 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
378 Add both the path in given SANDBOX_x variable, as well as its symlink
379 resolved path in init_env_entries(). Modify filter_path() to be able to
380 resolve paths without resolving symlinks, as well as to be able to resolve
381 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
382 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
383 for bug #31019 cause access violations if we try to remove a symlink that is
384 not in protected path, but points to a protected path. Fix a memory leak in
385 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
386 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
387 (pid_string was uninitialized). General syntax cleanups.
388
389 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
390 infamous "pids file is not a regular file" w/out newline bug.
391
392 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
393 Correct libc_version path detection, since it was screwing up if libdir !=
394 "/lib/".
395
396 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
397 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
398
399 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
400 Fix symbols.in not added to dist.
401
402 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
403 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
404 White space fixes.
405
406 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
407 configure.in, getcwd.c, libsandbox.c, symbols.in:
408 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
409 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
410 for glibc and other libc's that use this. Update libsandbox.c to use these
411 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
412 process unset it.
413
414 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
415 killed off _init and _fini in favor of
416 void __attribute__ ((constructor)) init_func and
417 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
418
419 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
420 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
421 having the hick-ups.
422
423 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
424 Makefile.am: Fixed compilation.
425
426 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
427 Gutted the bugger so it stops checking for a c++ and fortran compiler.
428 Do *not* regenerate aclocal.m4 for making a release until a better
429 solution is created.
430
431 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
432 Removal of more hardcoded paths.
433
434 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
435 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
436
437 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
438 Sandbox is now autotooled, create-localdecls needs to be killed and the code
439 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
440 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
441 To get to a point of testing, automake && autoconf; created requisite files w/
442 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
443 /lib and /usr/lib/portage/bin.
444
445 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
446 closing out bug #70225, potential overflow of the sandbox_pids_file var.
447
448 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
449 (think it was at least) allows intermixing of code and data segments. bug #70351
450 should be fixed by this.
451
452 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
453 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
454
455 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
456 Seth Robertson that tracked down all adjuct flags for read operations that
457 do not invoke a write operation.
458
459 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
460 Another fix from jstubbs regarding a free() on a stack variable for the
461 environment -- tracking now prevents extraneous free()'s segfault.
462
463 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
464 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
465 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
466 Also remove the errno = ESUCCESS settings as documentation points out that
467 a library isn't allowed to do that.
468
469 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
470 file_security_check() function to check random potential exploits on files
471 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
472 the 'system-crippling' exploits (bug 21923) and catches a few other
473 potential problems.
474
475 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
476 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
477
478 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
479 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
480 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
481
482 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
483 Fix permissions and group of pids file and logs. Permissions should be 0664
484 and group should be 'portage'. Bug #34260.
485
486 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
488 to the real execve (in our execve wrapper). Seems that on some arches (sparc
489 among others) do not allow us to tamper with the readonly copy passed to
490 execve, so pass our own copy of the environment. Bug #42290.
491
492 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
493 Changed tail to head and added a notice about duration of glibc check.
494
495 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
496 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
497 as there isn't a guarentee that it is dynamic.
498
499 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
500 If 'file' passed to before_syscall(const char *func, const char *file) is
501 invalid, we should set errno to ENOENT, and not EINVAL. This should
502 close bug #32238.
503
504 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
505 Fix a bug that occurs mainly on 64bit arch, where the file passed to
506 the functions we wrap, is invalid, and then cause canonicalize to pass
507 garbage to before_syscall(), thanks to great detective work from
508 Andrea Luzzardi <al@sig11.org> (bug #29846).
509
510 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
511 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
512
513 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
514 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
515 only checked the destination patch, and not the source, so we could move
516 a protected file to a unprotected directory, and then delete/modify it.
517 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
518
519 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
520 Added python2.3 to the predict section/variable.
521
522 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
523 sandbox.h, sandbox_futils.c :
524 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
525 it is not set, it will revert to its old value.
526
527 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
528 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
529 rather than failing with a violation, bug #29748.
530
531 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
532 Fix canonicalize() to ignore calls with path = "".
533
534 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
535 sandbox_futils.c, canonicalize.c :
536 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
537 call handled strings larger than PATH_MAX (bug #21766). It however does not
538 work the same on 2.4 kernels.
539
540 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
541 do not need the system call. We use the default getcwd() function via a
542 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
543 means the current directory was removed, OR that the the system call for
544 getcwd failed (curious is that it do not fail and return NULL or set
545 errno, but rather just truncate the retured directory - usually from the
546 start), and if so, we use the generic getcwd() function (__egetcwd). Note
547 that we do not use the generic version all the time, as it calls lstat()
548 a great number of times, and performance degrade much.
549
550 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
551 libsandbox.c :
552 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
553
554 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
555 create-localdecls :
556 When checking path names of files accessed, we need to canonicalize it, else
557 it may be a symlink in a 'write allowed' directory pointing to a file in a
558 directory we should not have write access to.
559
560 With something like coreutils-5.0, we have two problems:
561 1) One of the tests checks if getcwd() can return a path longer than
562 PATH_MAX. This test then tries to create a dir which even while
563 created local (mkdir("conftest2")), it ends up being resolved with
564 a name that is much larger than PATH_MAX. The problem now is that
565 canonicalize() have undefined behaviour when the path was too long
566 (returned wrongly truncated paths, etc), and pass the wrong path to
567 before_syscall() (causing the bogus sandbox violations).
568 2) The ecanonicalize() function we used, along with the canonicalize()
569 function did not support longer than PATH_MAX. This is partly a
570 cause for 1), but the error checking (rather lack of it) of calls
571 to erealpath() in canonicalize() was the prime reason for 1).
572
573 As we do not use this canonicalized name to call the function, we resolve this
574 by fixing canonicalize() to do better error checking, and ecanonicalize() as
575 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
576 While they will resolve paths properly now, and can check if a write/read is
577 allowed, the functions called from the sandboxed environment will still work
578 as expected.
579
580 This should resolve bug #21766.
581
582 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
583 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
584 it (bug #16298).
585
586 Problem is that for some reason locale fopen's locale.alias with mode "rm".
587
588 -------------------------------------------------------
589 nosferatu root # grep fopen locale.log
590 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
591 nosferatu root #
592 --------------------------------------------------------
593
594 I checked the source of locale, but it have fopen with mode 'r', so
595 not sure where the "rm" mode comes from. Anyhow, changed the check in
596 before_syscall_open_char() to also see mode "rm" as readonly.
597
598 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
599
600 Add glibc-2.3 support.
601
602 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
603
604 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
605 operations releated to preload, as well as only try to modify ld.so.preload
606 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
607 not using ld.so.preload. Fix to not write this instance of sandbox's pid
608 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
609
610 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
611
612 Changed the LD to CC for hppa.
613
614 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
615
616 Killed the previous changes I made.
617
618 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
619
620 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
621
622 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
623
624 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
625
626 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
627
628 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
629 for this fix.
630
631 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
632
633 sandbox_futils defined a dirname() function that was masking the same
634 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
635 '/usr/lib/portage/bi/'). Fixed function to return expected results and
636 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
637 11231.
638
639 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
640
641 Fix a segfault in libsandbox.c if canonicalize() was called with
642 first parameter = NULL.
643
644 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
645
646 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
647 cleanup() for this.
648
649 Change cleanup() in sandbox.c not to exit with fail status if
650 the pidsfile is missing. We really should still display sandbox
651 violations if they occured.
652
653 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
654
655 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
656 the last sandbox running.
657
658 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
659
660 Major cleanups to mainly libsandbox.c again.
661
662 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
663
664 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
665 parties involved should please contact me so that we can fix it.
666
667 Add opendir wrapper to libsandbox.c.
668
669 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
670
671 Do some more cleanups to ecanonicalize(), as it dropped filenames in
672 rare cases (after my symlink cleanups), and caused glibc to bork.
673 These fixes went into canonicalize.c.
674
675 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
676
677 Fix spawn_shell() and main() in sandbox.c to properly return fail
678 status.
679
680 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
681
682 The new canonicalize() function in libsandbox.c also resolved symlinks,
683 which caused on cleaning sandbox errors if the symlink pointed to a
684 file in the live root. Ripped out canonicalize() and realpath() from
685 glibc; removed the symlink stuff, and changed them to ecanonicalize()
686 and erealpath().
687
688 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
689
690 Ripped out all the wrappers, and implemented those of InstallWatch.
691 Losts of cleanups and bugfixes. Implement a execve that forces
692 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
693 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
694 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
695 parts; it now have an install target.
696
697 Reformat the whole thing to look somewhat like the reworked sandbox.c
698 and new sandbox.h and sandbox_futils.c from:
699
700 Brad House <brad@mainstreetsoftworks.com>.
701
702 Additional Copyrights now due to the InstallWatch code:
703
704 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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