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Revision 190 - (show annotations) (download)
Thu Dec 1 09:47:42 2005 UTC (9 years ago) by azarah
File size: 30891 byte(s)
Rename src/symbols.in to src/symbols.h.in.
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 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
28 sandbox_fdutils.c:
29
30 Detect if we on 64bit arch automatically.
31
32 Update contact email. Fix quoting.
33
34 Revert 64bit arch test, as we should build the 32bit version without full
35 path checking as well, and add --enable-multilib switch to configure.
36
37 * sandbox-1.2.14 (2005/11/28)
38
39 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
40 sandbox.c, sandbox.h, sandbox.bashrc:
41
42 Check generic getcwd()'s return as well for validity, bug #101728.
43
44 Cleanup environ variables.
45
46 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
47 to readonly in sandbox.bashrc.
48
49 Make sure we use our bashrc.
50
51 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
52
53 Do not pass mode to true_open and true_open64 if not needed. Should fix a
54 segfault in some cases.
55
56 * sandbox-1.2.13 (2005/09/12)
57
58 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
59
60 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
61 itself.
62
63 Make libsb_fini() do cleanup a bit more complete just in case we get another
64 uClibc 'call preloaded library fini before that of app' issue ... probably
65 will not help much, but we try.
66
67 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
68
69 Also allow symlink() system call to operate on a symlink in a writable path
70 that points to non-writable path, bug #104711.
71
72 * sandbox-1.2.12 (2005/08/05)
73
74 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
75 sandbox.h:
76
77 Do not give an access violation if the access() system call do not have
78 write/read access - it does not actually modify, so we only need to return
79 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
80 bug #101433.
81
82 If we are called from the command line, do not care about PORTAGE_TMPDIR,
83 and make the current directory the work directory. Also rename the variable
84 portage_tmp_dir to work_dir.
85
86 Remove the tmp_dir variable - we do not need it.
87
88 Improve error handling for get_sandbox_*_envvar() functions.
89
90 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
91
92 Still do normal log if debugging is requested.
93
94 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
95 to only enable if equal to "1" or "yes".
96
97 Add /dev/tts to write permit, bug #42809.
98
99 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
100 sandbox_futils.c:
101
102 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
103 in libsandbox .. bug #100309.
104
105 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
106
107 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
108
109 * sandbox-1.2.11 (2005/07/14)
110
111 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
112 Fix getcwd, bug #98419.
113
114 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
115 libsandbox.c:
116 - Try to cleanup and make error handling/printing consistent.
117 - Remove old logs if present and conflicting with current.
118 - Fix compile error with previous change, and return rather then exit().
119
120 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
121 sandbox.h, sandbox_futils.c:
122 - Fix possible segfault in env init code.
123 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
124 write to /var/log/sandbox/, so in theory do not need all that.
125 - Redo the interface of the get_* functions so that we do not leak memory.
126 - Remove sandbox_dir and co - we are not using it anymore.
127 - Remove unused includes and variables.
128 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
129 OUTSIDE_LIBSANDBOX is not defined.
130 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
131 printing's last line not honouring NOCOLOR.
132
133 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
134 libsandbox.c:
135 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
136 write to it.
137 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
138 - Add check_prefixes() with major cleanup on check_access().
139 - Cleanup init_env_entries() and check_prefixes().
140
141 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
142 sandbox_futils.c, libsandbox.c:
143 Remove unused 'pids file' code.
144
145 * sandbox-1.2.10 (2005/07/03)
146
147 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
148 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
149
150 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
151 General cleanups:
152 - Remove fooling around with exit codes - we error out on presence of a log
153 anyhow.
154 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
155 appropriate there.
156
157 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
158 Cleanup the fail_nametoolong stuff a bit more.
159
160 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
161 Remove hopefully the last ld.so.preload bits we do not use anymore.
162
163 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
164 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
165 in check_syscall(). Should speed things up a bit (at least for the getcwd()
166 and long path name test it goes down to under a second, and not 10+ seconds
167 like before). Also warn if we skip checking due to the canonicalized path
168 being too long.
169
170 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
171 More comment/readability cleanups.
172
173 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
174 sandbox_futils.c, libsandbox.c:
175 Some strncpy/strncat and other cleanups.
176
177 * sandbox-1.2.9 (2005/06/09)
178
179 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
180 Move symlink hack down a bit to try and minimize on the amount of lstat()
181 calls we do.
182
183 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
184 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
185
186 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
187 Add wrapper for access() function, bug #85413.
188
189 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
190 Use generic getcwd() implementation from uclibc - should be more portable
191 and looks a bit cleaner.
192
193 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
194 Make sure our true_* pointers are initialized to NULL, and that we check for
195 all references that they are valid.
196
197 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
198 Be default we will fail if the path name we try to canonicalize is too long.
199 This however could cause issues with some things (bug #94630 and #21766), so
200 if fail_nametoolong == 0, canonicalize() will return a null length string and
201 do not fail.
202
203 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
204 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
205 make sure we re-export the new TMPDIR environment variable.
206
207 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
208 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
209 by Marcus D. Hanwell <cryos@gentoo.org>.
210
211 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
212 Add /dev/console to write list, bug #38588.
213
214 * sandbox-1.2.8 (2005/05/13)
215
216 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
217 sandbox.h, sandbox_futils.c:
218 General cleanups.
219
220 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
221 sandbox.h:
222 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
223
224 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
225 sandbox.h, sandbox_futils.c:
226 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
227 to use TMPDIR if present in environment.
228
229 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
230 Remove sandbox_log_file from main() as its no longer used.
231
232 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
233 sandbox_futils.c:
234 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
235 if already exported when sandbox started). Fix get_sandbox_log() and new
236 get_sandbox_debug_log() to not use already exported environment variables if
237 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
238 SB_PATH_MAX fixes.
239
240 * sandbox-1.2.7 (2005/05/12)
241
242 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
243 sandbox_futils.c:
244 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
245
246 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
247 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
248 with '(null)' in it if we did not call sandbox with absolute path.
249
250 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
251 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
252 for the child.
253
254 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
255 Remove global preload_adaptable as it is no longer used.
256
257 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
258 Rewrite environment stuff to only be set when execve'ing the child process
259 to try and avoid issues like bug #91541 that causes sandbox to crash if
260 we set LD_PRELOAD sandbox side already.
261
262 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
263 Move print_sandbox_log() up to make things neater.
264
265 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
266 Remove load_preload_libs(), as its not used anymore.
267
268 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
269 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
270
271 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
272 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
273
274 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
275 Remove ld.so.preload crap - we are not going to use it again.
276
277 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
278 Fix typo in code that checks if we got valid group information, causing a
279 segmentation fault, bug #91637.
280
281 * sandbox-1.2.6 (2005/05/10)
282
283 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
284 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
285 for some odd reason, bug #91541.
286
287 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
288 Fix typo (sizeof -> strlen).
289
290 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
291 rewrote the sbcontext caching code so it accounts for env changes since lib
292 initialization.
293
294 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
295 We create libctest.c via configure, so no need to keep it around. Do some
296 cleanup related to libctest.c and libctest during configure.
297
298 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
299 Add rename support of symlinks pointing to protected files/directories.
300
301 * sandbox-1.2.5 (2005/05/04)
302
303 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
304 sandbox.bashrc:
305 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
306 already set, init of the env vars fails for some reason, so do this later on,
307 and do not warn (bug #91431).
308
309 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
310 sandbox.bashrc:
311 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
312
313 * sandbox-1.2.4 (2005/05/03)
314
315 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
316 Do not init the env entries with each call, as it creates too many calls to
317 lstat, etc. Should speedup things a bit, bug #91040.
318
319 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
320 Add /dev/pty to default write list. Noticed by Morfic.
321
322 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
323 sandbox.h:
324 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
325 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
326
327 * sandbox-1.2.3 (2005/04/29)
328
329 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
330 Do not check for (*&#$(* CXX or F77.
331
332 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
333 Do not append '/' to pathname in filter_path() if it already ends with it.
334
335 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
336 With az's help, clean up autotools to work with cross-compiling.
337
338 * sandbox-1.2.2 (2005/04/28)
339
340 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
341 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
342 have issues; bug #90592.
343
344 * sandbox-1.2.1 (2005/04/23)
345
346 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
347 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
348 Make sure all functions used in libsandbox.c is declared static. Define
349 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
350 linking with its object. Hopefully this will fix bug #90153.
351
352 * sandbox-1.2 (2005/04/23)
353
354 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
355 Allow lchown a symlink in write-allowed path pointing to write-denied
356 target.
357
358 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
359 Also show resolved symlink names in the log.
360
361 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
362 Seems -nostdlib was the problem with the constructor/destructor - remove it
363 from Makefile.am, and change the constructor/destructor names again.
364
365 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
366 Also rename the _init() and _fini() declarations.
367
368 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
369 Fixup the constructor/destructor function names again (they should be _init()
370 and _fini() it seems, and not being called caused sandbox_lib_path to be
371 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
372 Add both the path in given SANDBOX_x variable, as well as its symlink
373 resolved path in init_env_entries(). Modify filter_path() to be able to
374 resolve paths without resolving symlinks, as well as to be able to resolve
375 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
376 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
377 for bug #31019 cause access violations if we try to remove a symlink that is
378 not in protected path, but points to a protected path. Fix a memory leak in
379 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
380 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
381 (pid_string was uninitialized). General syntax cleanups.
382
383 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
384 infamous "pids file is not a regular file" w/out newline bug.
385
386 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
387 Correct libc_version path detection, since it was screwing up if libdir !=
388 "/lib/".
389
390 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
391 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
392
393 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
394 Fix symbols.in not added to dist.
395
396 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
397 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
398 White space fixes.
399
400 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
401 configure.in, getcwd.c, libsandbox.c, symbols.in:
402 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
403 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
404 for glibc and other libc's that use this. Update libsandbox.c to use these
405 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
406 process unset it.
407
408 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
409 killed off _init and _fini in favor of
410 void __attribute__ ((constructor)) init_func and
411 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
412
413 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
414 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
415 having the hick-ups.
416
417 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
418 Makefile.am: Fixed compilation.
419
420 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
421 Gutted the bugger so it stops checking for a c++ and fortran compiler.
422 Do *not* regenerate aclocal.m4 for making a release until a better
423 solution is created.
424
425 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
426 Removal of more hardcoded paths.
427
428 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
429 sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
430
431 19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
432 Sandbox is now autotooled, create-localdecls needs to be killed and the code
433 shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
434 are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
435 To get to a point of testing, automake && autoconf; created requisite files w/
436 a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
437 /lib and /usr/lib/portage/bin.
438
439 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
440 closing out bug #70225, potential overflow of the sandbox_pids_file var.
441
442 07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
443 (think it was at least) allows intermixing of code and data segments. bug #70351
444 should be fixed by this.
445
446 03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
447 futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
448
449 02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
450 Seth Robertson that tracked down all adjuct flags for read operations that
451 do not invoke a write operation.
452
453 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
454 Another fix from jstubbs regarding a free() on a stack variable for the
455 environment -- tracking now prevents extraneous free()'s segfault.
456
457 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
458 J. Stubbs tracked down a new bug where mkdir was failing to the patch on
459 the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
460 Also remove the errno = ESUCCESS settings as documentation points out that
461 a library isn't allowed to do that.
462
463 04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
464 file_security_check() function to check random potential exploits on files
465 that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
466 the 'system-crippling' exploits (bug 21923) and catches a few other
467 potential problems.
468
469 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
470 32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
471
472 20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
473 bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
474 Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
475
476 29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
477 Fix permissions and group of pids file and logs. Permissions should be 0664
478 and group should be 'portage'. Bug #34260.
479
480 28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
481 Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
482 to the real execve (in our execve wrapper). Seems that on some arches (sparc
483 among others) do not allow us to tamper with the readonly copy passed to
484 execve, so pass our own copy of the environment. Bug #42290.
485
486 11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
487 Changed tail to head and added a notice about duration of glibc check.
488
489 21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
490 Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
491 as there isn't a guarentee that it is dynamic.
492
493 02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
494 If 'file' passed to before_syscall(const char *func, const char *file) is
495 invalid, we should set errno to ENOENT, and not EINVAL. This should
496 close bug #32238.
497
498 14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
499 Fix a bug that occurs mainly on 64bit arch, where the file passed to
500 the functions we wrap, is invalid, and then cause canonicalize to pass
501 garbage to before_syscall(), thanks to great detective work from
502 Andrea Luzzardi <al@sig11.org> (bug #29846).
503
504 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
505 Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
506
507 13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
508 Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
509 only checked the destination patch, and not the source, so we could move
510 a protected file to a unprotected directory, and then delete/modify it.
511 Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
512
513 12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
514 Added python2.3 to the predict section/variable.
515
516 28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
517 sandbox.h, sandbox_futils.c :
518 Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
519 it is not set, it will revert to its old value.
520
521 27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
522 Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
523 rather than failing with a violation, bug #29748.
524
525 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
526 Fix canonicalize() to ignore calls with path = "".
527
528 27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
529 sandbox_futils.c, canonicalize.c :
530 Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
531 call handled strings larger than PATH_MAX (bug #21766). It however does not
532 work the same on 2.4 kernels.
533
534 To fix, I added the posix implementation of getcwd() (from glibc cvs) that
535 do not need the system call. We use the default getcwd() function via a
536 wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
537 means the current directory was removed, OR that the the system call for
538 getcwd failed (curious is that it do not fail and return NULL or set
539 errno, but rather just truncate the retured directory - usually from the
540 start), and if so, we use the generic getcwd() function (__egetcwd). Note
541 that we do not use the generic version all the time, as it calls lstat()
542 a great number of times, and performance degrade much.
543
544 29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
545 libsandbox.c :
546 Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
547
548 22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
549 create-localdecls :
550 When checking path names of files accessed, we need to canonicalize it, else
551 it may be a symlink in a 'write allowed' directory pointing to a file in a
552 directory we should not have write access to.
553
554 With something like coreutils-5.0, we have two problems:
555 1) One of the tests checks if getcwd() can return a path longer than
556 PATH_MAX. This test then tries to create a dir which even while
557 created local (mkdir("conftest2")), it ends up being resolved with
558 a name that is much larger than PATH_MAX. The problem now is that
559 canonicalize() have undefined behaviour when the path was too long
560 (returned wrongly truncated paths, etc), and pass the wrong path to
561 before_syscall() (causing the bogus sandbox violations).
562 2) The ecanonicalize() function we used, along with the canonicalize()
563 function did not support longer than PATH_MAX. This is partly a
564 cause for 1), but the error checking (rather lack of it) of calls
565 to erealpath() in canonicalize() was the prime reason for 1).
566
567 As we do not use this canonicalized name to call the function, we resolve this
568 by fixing canonicalize() to do better error checking, and ecanonicalize() as
569 well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
570 While they will resolve paths properly now, and can check if a write/read is
571 allowed, the functions called from the sandboxed environment will still work
572 as expected.
573
574 This should resolve bug #21766.
575
576 06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
577 For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
578 it (bug #16298).
579
580 Problem is that for some reason locale fopen's locale.alias with mode "rm".
581
582 -------------------------------------------------------
583 nosferatu root # grep fopen locale.log
584 fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
585 nosferatu root #
586 --------------------------------------------------------
587
588 I checked the source of locale, but it have fopen with mode 'r', so
589 not sure where the "rm" mode comes from. Anyhow, changed the check in
590 before_syscall_open_char() to also see mode "rm" as readonly.
591
592 23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
593
594 Add glibc-2.3 support.
595
596 22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
597
598 Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
599 operations releated to preload, as well as only try to modify ld.so.preload
600 if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
601 not using ld.so.preload. Fix to not write this instance of sandbox's pid
602 to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
603
604 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
605
606 Changed the LD to CC for hppa.
607
608 22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
609
610 Killed the previous changes I made.
611
612 17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
613
614 Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
615
616 09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
617
618 Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
619
620 16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
621
622 Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
623 for this fix.
624
625 4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
626
627 sandbox_futils defined a dirname() function that was masking the same
628 function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
629 '/usr/lib/portage/bi/'). Fixed function to return expected results and
630 renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
631 11231.
632
633 4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
634
635 Fix a segfault in libsandbox.c if canonicalize() was called with
636 first parameter = NULL.
637
638 1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
639
640 Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
641 cleanup() for this.
642
643 Change cleanup() in sandbox.c not to exit with fail status if
644 the pidsfile is missing. We really should still display sandbox
645 violations if they occured.
646
647 31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
648
649 Update cleanup() in sandbox.c to remove the PIDSFILE if this is
650 the last sandbox running.
651
652 25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
653
654 Major cleanups to mainly libsandbox.c again.
655
656 22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
657
658 Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
659 parties involved should please contact me so that we can fix it.
660
661 Add opendir wrapper to libsandbox.c.
662
663 21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
664
665 Do some more cleanups to ecanonicalize(), as it dropped filenames in
666 rare cases (after my symlink cleanups), and caused glibc to bork.
667 These fixes went into canonicalize.c.
668
669 20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
670
671 Fix spawn_shell() and main() in sandbox.c to properly return fail
672 status.
673
674 19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
675
676 The new canonicalize() function in libsandbox.c also resolved symlinks,
677 which caused on cleaning sandbox errors if the symlink pointed to a
678 file in the live root. Ripped out canonicalize() and realpath() from
679 glibc; removed the symlink stuff, and changed them to ecanonicalize()
680 and erealpath().
681
682 18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
683
684 Ripped out all the wrappers, and implemented those of InstallWatch.
685 Losts of cleanups and bugfixes. Implement a execve that forces
686 $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
687 /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
688 sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
689 parts; it now have an install target.
690
691 Reformat the whole thing to look somewhat like the reworked sandbox.c
692 and new sandbox.h and sandbox_futils.c from:
693
694 Brad House <brad@mainstreetsoftworks.com>.
695
696 Additional Copyrights now due to the InstallWatch code:
697
698 Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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