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Revision 192 - (show annotations) (download)
Thu Dec 1 10:45:43 2005 UTC (8 years, 9 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 31020 byte(s)
Rename filter_path() to resolve_path() and other renames for clarity.
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 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
32 sandbox_fdutils.c:
33
34 Detect if we on 64bit arch automatically.
35
36 Update contact email. Fix quoting.
37
38 Revert 64bit arch test, as we should build the 32bit version without full
39 path checking as well, and add --enable-multilib switch to configure.
40
41 * sandbox-1.2.14 (2005/11/28)
42
43 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
44 sandbox.c, sandbox.h, sandbox.bashrc:
45
46 Check generic getcwd()'s return as well for validity, bug #101728.
47
48 Cleanup environ variables.
49
50 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
51 to readonly in sandbox.bashrc.
52
53 Make sure we use our bashrc.
54
55 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
56
57 Do not pass mode to true_open and true_open64 if not needed. Should fix a
58 segfault in some cases.
59
60 * sandbox-1.2.13 (2005/09/12)
61
62 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
63
64 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
65 itself.
66
67 Make libsb_fini() do cleanup a bit more complete just in case we get another
68 uClibc 'call preloaded library fini before that of app' issue ... probably
69 will not help much, but we try.
70
71 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
72
73 Also allow symlink() system call to operate on a symlink in a writable path
74 that points to non-writable path, bug #104711.
75
76 * sandbox-1.2.12 (2005/08/05)
77
78 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
79 sandbox.h:
80
81 Do not give an access violation if the access() system call do not have
82 write/read access - it does not actually modify, so we only need to return
83 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
84 bug #101433.
85
86 If we are called from the command line, do not care about PORTAGE_TMPDIR,
87 and make the current directory the work directory. Also rename the variable
88 portage_tmp_dir to work_dir.
89
90 Remove the tmp_dir variable - we do not need it.
91
92 Improve error handling for get_sandbox_*_envvar() functions.
93
94 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
95
96 Still do normal log if debugging is requested.
97
98 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
99 to only enable if equal to "1" or "yes".
100
101 Add /dev/tts to write permit, bug #42809.
102
103 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
104 sandbox_futils.c:
105
106 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
107 in libsandbox .. bug #100309.
108
109 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
110
111 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
112
113 * sandbox-1.2.11 (2005/07/14)
114
115 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
116 Fix getcwd, bug #98419.
117
118 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
119 libsandbox.c:
120 - Try to cleanup and make error handling/printing consistent.
121 - Remove old logs if present and conflicting with current.
122 - Fix compile error with previous change, and return rather then exit().
123
124 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
125 sandbox.h, sandbox_futils.c:
126 - Fix possible segfault in env init code.
127 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
128 write to /var/log/sandbox/, so in theory do not need all that.
129 - Redo the interface of the get_* functions so that we do not leak memory.
130 - Remove sandbox_dir and co - we are not using it anymore.
131 - Remove unused includes and variables.
132 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
133 OUTSIDE_LIBSANDBOX is not defined.
134 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
135 printing's last line not honouring NOCOLOR.
136
137 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
138 libsandbox.c:
139 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
140 write to it.
141 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
142 - Add check_prefixes() with major cleanup on check_access().
143 - Cleanup init_env_entries() and check_prefixes().
144
145 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
146 sandbox_futils.c, libsandbox.c:
147 Remove unused 'pids file' code.
148
149 * sandbox-1.2.10 (2005/07/03)
150
151 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
152 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
153
154 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
155 General cleanups:
156 - Remove fooling around with exit codes - we error out on presence of a log
157 anyhow.
158 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
159 appropriate there.
160
161 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
162 Cleanup the fail_nametoolong stuff a bit more.
163
164 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
165 Remove hopefully the last ld.so.preload bits we do not use anymore.
166
167 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
168 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
169 in check_syscall(). Should speed things up a bit (at least for the getcwd()
170 and long path name test it goes down to under a second, and not 10+ seconds
171 like before). Also warn if we skip checking due to the canonicalized path
172 being too long.
173
174 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
175 More comment/readability cleanups.
176
177 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
178 sandbox_futils.c, libsandbox.c:
179 Some strncpy/strncat and other cleanups.
180
181 * sandbox-1.2.9 (2005/06/09)
182
183 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
184 Move symlink hack down a bit to try and minimize on the amount of lstat()
185 calls we do.
186
187 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
188 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
189
190 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
191 Add wrapper for access() function, bug #85413.
192
193 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
194 Use generic getcwd() implementation from uclibc - should be more portable
195 and looks a bit cleaner.
196
197 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
198 Make sure our true_* pointers are initialized to NULL, and that we check for
199 all references that they are valid.
200
201 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
202 Be default we will fail if the path name we try to canonicalize is too long.
203 This however could cause issues with some things (bug #94630 and #21766), so
204 if fail_nametoolong == 0, canonicalize() will return a null length string and
205 do not fail.
206
207 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
208 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
209 make sure we re-export the new TMPDIR environment variable.
210
211 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
212 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
213 by Marcus D. Hanwell <cryos@gentoo.org>.
214
215 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
216 Add /dev/console to write list, bug #38588.
217
218 * sandbox-1.2.8 (2005/05/13)
219
220 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
221 sandbox.h, sandbox_futils.c:
222 General cleanups.
223
224 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
225 sandbox.h:
226 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
227
228 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
229 sandbox.h, sandbox_futils.c:
230 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
231 to use TMPDIR if present in environment.
232
233 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
234 Remove sandbox_log_file from main() as its no longer used.
235
236 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
237 sandbox_futils.c:
238 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
239 if already exported when sandbox started). Fix get_sandbox_log() and new
240 get_sandbox_debug_log() to not use already exported environment variables if
241 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
242 SB_PATH_MAX fixes.
243
244 * sandbox-1.2.7 (2005/05/12)
245
246 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
247 sandbox_futils.c:
248 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
249
250 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
251 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
252 with '(null)' in it if we did not call sandbox with absolute path.
253
254 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
255 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
256 for the child.
257
258 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
259 Remove global preload_adaptable as it is no longer used.
260
261 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
262 Rewrite environment stuff to only be set when execve'ing the child process
263 to try and avoid issues like bug #91541 that causes sandbox to crash if
264 we set LD_PRELOAD sandbox side already.
265
266 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
267 Move print_sandbox_log() up to make things neater.
268
269 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
270 Remove load_preload_libs(), as its not used anymore.
271
272 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
273 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
274
275 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
276 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
277
278 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
279 Remove ld.so.preload crap - we are not going to use it again.
280
281 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
282 Fix typo in code that checks if we got valid group information, causing a
283 segmentation fault, bug #91637.
284
285 * sandbox-1.2.6 (2005/05/10)
286
287 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
288 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
289 for some odd reason, bug #91541.
290
291 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
292 Fix typo (sizeof -> strlen).
293
294 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
295 rewrote the sbcontext caching code so it accounts for env changes since lib
296 initialization.
297
298 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
299 We create libctest.c via configure, so no need to keep it around. Do some
300 cleanup related to libctest.c and libctest during configure.
301
302 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
303 Add rename support of symlinks pointing to protected files/directories.
304
305 * sandbox-1.2.5 (2005/05/04)
306
307 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
308 sandbox.bashrc:
309 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
310 already set, init of the env vars fails for some reason, so do this later on,
311 and do not warn (bug #91431).
312
313 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
314 sandbox.bashrc:
315 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
316
317 * sandbox-1.2.4 (2005/05/03)
318
319 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
320 Do not init the env entries with each call, as it creates too many calls to
321 lstat, etc. Should speedup things a bit, bug #91040.
322
323 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
324 Add /dev/pty to default write list. Noticed by Morfic.
325
326 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
327 sandbox.h:
328 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
329 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
330
331 * sandbox-1.2.3 (2005/04/29)
332
333 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
334 Do not check for (*&#$(* CXX or F77.
335
336 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
337 Do not append '/' to pathname in filter_path() if it already ends with it.
338
339 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
340 With az's help, clean up autotools to work with cross-compiling.
341
342 * sandbox-1.2.2 (2005/04/28)
343
344 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
345 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
346 have issues; bug #90592.
347
348 * sandbox-1.2.1 (2005/04/23)
349
350 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
351 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
352 Make sure all functions used in libsandbox.c is declared static. Define
353 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
354 linking with its object. Hopefully this will fix bug #90153.
355
356 * sandbox-1.2 (2005/04/23)
357
358 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
359 Allow lchown a symlink in write-allowed path pointing to write-denied
360 target.
361
362 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
363 Also show resolved symlink names in the log.
364
365 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
366 Seems -nostdlib was the problem with the constructor/destructor - remove it
367 from Makefile.am, and change the constructor/destructor names again.
368
369 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
370 Also rename the _init() and _fini() declarations.
371
372 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
373 Fixup the constructor/destructor function names again (they should be _init()
374 and _fini() it seems, and not being called caused sandbox_lib_path to be
375 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
376 Add both the path in given SANDBOX_x variable, as well as its symlink
377 resolved path in init_env_entries(). Modify filter_path() to be able to
378 resolve paths without resolving symlinks, as well as to be able to resolve
379 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
380 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
381 for bug #31019 cause access violations if we try to remove a symlink that is
382 not in protected path, but points to a protected path. Fix a memory leak in
383 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
384 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
385 (pid_string was uninitialized). General syntax cleanups.
386
387 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
388 infamous "pids file is not a regular file" w/out newline bug.
389
390 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
391 Correct libc_version path detection, since it was screwing up if libdir !=
392 "/lib/".
393
394 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
395 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
396
397 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
398 Fix symbols.in not added to dist.
399
400 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
401 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
402 White space fixes.
403
404 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
405 configure.in, getcwd.c, libsandbox.c, symbols.in:
406 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
407 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
408 for glibc and other libc's that use this. Update libsandbox.c to use these
409 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
410 process unset it.
411
412 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
413 killed off _init and _fini in favor of
414 void __attribute__ ((constructor)) init_func and
415 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
416
417 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
418 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
419 having the hick-ups.
420
421 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
422 Makefile.am: Fixed compilation.
423
424 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
425 Gutted the bugger so it stops checking for a c++ and fortran compiler.
426 Do *not* regenerate aclocal.m4 for making a release until a better
427 solution is created.
428
429 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
430 Removal of more hardcoded paths.
431
432 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
433 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
434
435 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
436 Sandbox is now autotooled, create-localdecls needs to be killed and the code
437 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
438 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
439 To get to a point of testing, automake && autoconf; created requisite files w/
440 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
441 /lib and /usr/lib/portage/bin.
442
443 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
444 closing out bug #70225, potential overflow of the sandbox_pids_file var.
445
446 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
447 (think it was at least) allows intermixing of code and data segments. bug #70351
448 should be fixed by this.
449
450 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
451 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
452
453 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
454 Seth Robertson that tracked down all adjuct flags for read operations that
455 do not invoke a write operation.
456
457 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
458 Another fix from jstubbs regarding a free() on a stack variable for the
459 environment -- tracking now prevents extraneous free()'s segfault.
460
461 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
462 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
463 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
464 Also remove the errno = ESUCCESS settings as documentation points out that
465 a library isn't allowed to do that.
466
467 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
468 file_security_check() function to check random potential exploits on files
469 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
470 the 'system-crippling' exploits (bug 21923) and catches a few other
471 potential problems.
472
473 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
474 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
475
476 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
477 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
478 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
479
480 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
481 Fix permissions and group of pids file and logs. Permissions should be 0664
482 and group should be 'portage'. Bug #34260.
483
484 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
485 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
486 to the real execve (in our execve wrapper). Seems that on some arches (sparc
487 among others) do not allow us to tamper with the readonly copy passed to
488 execve, so pass our own copy of the environment. Bug #42290.
489
490 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
491 Changed tail to head and added a notice about duration of glibc check.
492
493 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
494 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
495 as there isn't a guarentee that it is dynamic.
496
497 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
498 If 'file' passed to before_syscall(const char *func, const char *file) is
499 invalid, we should set errno to ENOENT, and not EINVAL. This should
500 close bug #32238.
501
502 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
503 Fix a bug that occurs mainly on 64bit arch, where the file passed to
504 the functions we wrap, is invalid, and then cause canonicalize to pass
505 garbage to before_syscall(), thanks to great detective work from
506 Andrea Luzzardi <al@sig11.org> (bug #29846).
507
508 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
509 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
510
511 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
512 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
513 only checked the destination patch, and not the source, so we could move
514 a protected file to a unprotected directory, and then delete/modify it.
515 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
516
517 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
518 Added python2.3 to the predict section/variable.
519
520 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
521 sandbox.h, sandbox_futils.c :
522 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
523 it is not set, it will revert to its old value.
524
525 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
526 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
527 rather than failing with a violation, bug #29748.
528
529 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
530 Fix canonicalize() to ignore calls with path = "".
531
532 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
533 sandbox_futils.c, canonicalize.c :
534 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
535 call handled strings larger than PATH_MAX (bug #21766). It however does not
536 work the same on 2.4 kernels.
537
538 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
539 do not need the system call. We use the default getcwd() function via a
540 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
541 means the current directory was removed, OR that the the system call for
542 getcwd failed (curious is that it do not fail and return NULL or set
543 errno, but rather just truncate the retured directory - usually from the
544 start), and if so, we use the generic getcwd() function (__egetcwd). Note
545 that we do not use the generic version all the time, as it calls lstat()
546 a great number of times, and performance degrade much.
547
548 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
549 libsandbox.c :
550 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
551
552 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
553 create-localdecls :
554 When checking path names of files accessed, we need to canonicalize it, else
555 it may be a symlink in a 'write allowed' directory pointing to a file in a
556 directory we should not have write access to.
557
558 With something like coreutils-5.0, we have two problems:
559 1) One of the tests checks if getcwd() can return a path longer than
560 PATH_MAX. This test then tries to create a dir which even while
561 created local (mkdir("conftest2")), it ends up being resolved with
562 a name that is much larger than PATH_MAX. The problem now is that
563 canonicalize() have undefined behaviour when the path was too long
564 (returned wrongly truncated paths, etc), and pass the wrong path to
565 before_syscall() (causing the bogus sandbox violations).
566 2) The ecanonicalize() function we used, along with the canonicalize()
567 function did not support longer than PATH_MAX. This is partly a
568 cause for 1), but the error checking (rather lack of it) of calls
569 to erealpath() in canonicalize() was the prime reason for 1).
570
571 As we do not use this canonicalized name to call the function, we resolve this
572 by fixing canonicalize() to do better error checking, and ecanonicalize() as
573 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
574 While they will resolve paths properly now, and can check if a write/read is
575 allowed, the functions called from the sandboxed environment will still work
576 as expected.
577
578 This should resolve bug #21766.
579
580 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
581 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
582 it (bug #16298).
583
584 Problem is that for some reason locale fopen's locale.alias with mode "rm".
585
586 -------------------------------------------------------
587 nosferatu root # grep fopen locale.log
588 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
589 nosferatu root #
590 --------------------------------------------------------
591
592 I checked the source of locale, but it have fopen with mode 'r', so
593 not sure where the "rm" mode comes from. Anyhow, changed the check in
594 before_syscall_open_char() to also see mode "rm" as readonly.
595
596 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
597
598 Add glibc-2.3 support.
599
600 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
601
602 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
603 operations releated to preload, as well as only try to modify ld.so.preload
604 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
605 not using ld.so.preload. Fix to not write this instance of sandbox's pid
606 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
607
608 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
609
610 Changed the LD to CC for hppa.
611
612 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
613
614 Killed the previous changes I made.
615
616 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
617
618 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
619
620 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
621
622 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
623
624 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
625
626 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
627 for this fix.
628
629 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
630
631 sandbox_futils defined a dirname() function that was masking the same
632 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
633 '/usr/lib/portage/bi/'). Fixed function to return expected results and
634 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
635 11231.
636
637 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
638
639 Fix a segfault in libsandbox.c if canonicalize() was called with
640 first parameter = NULL.
641
642 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
643
644 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
645 cleanup() for this.
646
647 Change cleanup() in sandbox.c not to exit with fail status if
648 the pidsfile is missing. We really should still display sandbox
649 violations if they occured.
650
651 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
652
653 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
654 the last sandbox running.
655
656 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
657
658 Major cleanups to mainly libsandbox.c again.
659
660 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
661
662 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
663 parties involved should please contact me so that we can fix it.
664
665 Add opendir wrapper to libsandbox.c.
666
667 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
668
669 Do some more cleanups to ecanonicalize(), as it dropped filenames in
670 rare cases (after my symlink cleanups), and caused glibc to bork.
671 These fixes went into canonicalize.c.
672
673 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
674
675 Fix spawn_shell() and main() in sandbox.c to properly return fail
676 status.
677
678 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
679
680 The new canonicalize() function in libsandbox.c also resolved symlinks,
681 which caused on cleaning sandbox errors if the symlink pointed to a
682 file in the live root. Ripped out canonicalize() and realpath() from
683 glibc; removed the symlink stuff, and changed them to ecanonicalize()
684 and erealpath().
685
686 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
687
688 Ripped out all the wrappers, and implemented those of InstallWatch.
689 Losts of cleanups and bugfixes. Implement a execve that forces
690 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
691 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
692 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
693 parts; it now have an install target.
694
695 Reformat the whole thing to look somewhat like the reworked sandbox.c
696 and new sandbox.h and sandbox_futils.c from:
697
698 Brad House <brad@mainstreetsoftworks.com>.
699
700 Additional Copyrights now due to the InstallWatch code:
701
702 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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