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1# ChangeLog for Path Sandbox 1# ChangeLog for Path Sandbox
2# Copyright 1999-2004 Gentoo Foundation; Distributed under the GPL v2 2# Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3# $Header$ 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.
4 425
5 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4: 426 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
6 Gutted the bugger so it stops checking for a c++ and fortran compiler. 427 Gutted the bugger so it stops checking for a c++ and fortran compiler.
7 Do *not* regenerate aclocal.m4 for making a release until a better 428 Do *not* regenerate aclocal.m4 for making a release until a better
8 solution is created. 429 solution is created.

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