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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 4
5 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
6 sandbox.c, sandbox.h, sandbox.bashrc:
7
8 Check generic getcwd()'s return as well for validity, bug #101728.
9
10 Cleanup environ variables.
11
12 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
13 to readonly in sandbox.bashrc.
14
15 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
16
17 Do not pass mode to true_open and true_open64 if not needed. Should fix a
18 segfault in some cases.
19
20* sandbox-1.2.13 (2005/09/12)
21
22 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
23
24 Do not handle adding working directory to SANDBOX_WRITE, as portage does it
25 itself.
26
27 Make libsb_fini() do cleanup a bit more complete just in case we get another
28 uClibc 'call preloaded library fini before that of app' issue ... probably
29 will not help much, but we try.
30
31 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
32
33 Also allow symlink() system call to operate on a symlink in a writable path
34 that points to non-writable path, bug #104711.
35
36* sandbox-1.2.12 (2005/08/05)
37
38 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
39 sandbox.h:
40
41 Do not give an access violation if the access() system call do not have
42 write/read access - it does not actually modify, so we only need to return
43 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
44 bug #101433.
45
46 If we are called from the command line, do not care about PORTAGE_TMPDIR,
47 and make the current directory the work directory. Also rename the variable
48 portage_tmp_dir to work_dir.
49
50 Remove the tmp_dir variable - we do not need it.
51
52 Improve error handling for get_sandbox_*_envvar() functions.
53
54 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
55
56 Still do normal log if debugging is requested.
57
58 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
59 to only enable if equal to "1" or "yes".
60
61 Add /dev/tts to write permit, bug #42809.
62
63 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
64 sandbox_futils.c:
65
66 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
67 in libsandbox .. bug #100309.
68
69 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
70
71 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
72
73* sandbox-1.2.11 (2005/07/14)
74
75 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
76 Fix getcwd, bug #98419.
77
78 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
79 libsandbox.c:
80 - Try to cleanup and make error handling/printing consistent.
81 - Remove old logs if present and conflicting with current.
82 - Fix compile error with previous change, and return rather then exit().
83
84 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
85 sandbox.h, sandbox_futils.c:
86 - Fix possible segfault in env init code.
87 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
88 write to /var/log/sandbox/, so in theory do not need all that.
89 - Redo the interface of the get_* functions so that we do not leak memory.
90 - Remove sandbox_dir and co - we are not using it anymore.
91 - Remove unused includes and variables.
92 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
93 OUTSIDE_LIBSANDBOX is not defined.
94 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
95 printing's last line not honouring NOCOLOR.
96
97 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
98 libsandbox.c:
99 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
100 write to it.
101 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
102 - Add check_prefixes() with major cleanup on check_access().
103 - Cleanup init_env_entries() and check_prefixes().
104
105 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
106 sandbox_futils.c, libsandbox.c:
107 Remove unused 'pids file' code.
108
109* sandbox-1.2.10 (2005/07/03)
110
111 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
112 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
113
114 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
115 General cleanups:
116 - Remove fooling around with exit codes - we error out on presence of a log
117 anyhow.
118 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
119 appropriate there.
120
121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
122 Cleanup the fail_nametoolong stuff a bit more.
123
124 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
125 Remove hopefully the last ld.so.preload bits we do not use anymore.
126
127 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
128 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
129 in check_syscall(). Should speed things up a bit (at least for the getcwd()
130 and long path name test it goes down to under a second, and not 10+ seconds
131 like before). Also warn if we skip checking due to the canonicalized path
132 being too long.
133
134 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
135 More comment/readability cleanups.
136
137 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
138 sandbox_futils.c, libsandbox.c:
139 Some strncpy/strncat and other cleanups.
140
141* sandbox-1.2.9 (2005/06/09)
142
143 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
144 Move symlink hack down a bit to try and minimize on the amount of lstat()
145 calls we do.
146
147 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
148 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
149
150 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
151 Add wrapper for access() function, bug #85413.
152
153 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
154 Use generic getcwd() implementation from uclibc - should be more portable
155 and looks a bit cleaner.
156
157 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
158 Make sure our true_* pointers are initialized to NULL, and that we check for
159 all references that they are valid.
160
161 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
162 Be default we will fail if the path name we try to canonicalize is too long.
163 This however could cause issues with some things (bug #94630 and #21766), so
164 if fail_nametoolong == 0, canonicalize() will return a null length string and
165 do not fail.
166
167 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
168 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
169 make sure we re-export the new TMPDIR environment variable.
170
171 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
172 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
173 by Marcus D. Hanwell <cryos@gentoo.org>.
174
175 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
176 Add /dev/console to write list, bug #38588.
177
178* sandbox-1.2.8 (2005/05/13)
179
180 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
181 sandbox.h, sandbox_futils.c:
182 General cleanups.
183
184 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
185 sandbox.h:
186 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
187
188 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
189 sandbox.h, sandbox_futils.c:
190 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
191 to use TMPDIR if present in environment.
192
193 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
194 Remove sandbox_log_file from main() as its no longer used.
195
196 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
197 sandbox_futils.c:
198 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
199 if already exported when sandbox started). Fix get_sandbox_log() and new
200 get_sandbox_debug_log() to not use already exported environment variables if
201 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
202 SB_PATH_MAX fixes.
203
204* sandbox-1.2.7 (2005/05/12)
205
206 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
207 sandbox_futils.c:
208 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
209
210 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
211 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
212 with '(null)' in it if we did not call sandbox with absolute path.
213
214 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
215 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
216 for the child.
217
218 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
219 Remove global preload_adaptable as it is no longer used.
220
221 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
222 Rewrite environment stuff to only be set when execve'ing the child process
223 to try and avoid issues like bug #91541 that causes sandbox to crash if
224 we set LD_PRELOAD sandbox side already.
225
226 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
227 Move print_sandbox_log() up to make things neater.
228
229 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
230 Remove load_preload_libs(), as its not used anymore.
231
232 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
233 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
234
235 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
236 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
237
238 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
239 Remove ld.so.preload crap - we are not going to use it again.
240
241 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
242 Fix typo in code that checks if we got valid group information, causing a
243 segmentation fault, bug #91637.
244
245* sandbox-1.2.6 (2005/05/10)
246
247 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
248 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
249 for some odd reason, bug #91541.
250
251 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
252 Fix typo (sizeof -> strlen).
253
254 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
255 rewrote the sbcontext caching code so it accounts for env changes since lib
256 initialization.
257
258 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
259 We create libctest.c via configure, so no need to keep it around. Do some
260 cleanup related to libctest.c and libctest during configure.
261
262 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
263 Add rename support of symlinks pointing to protected files/directories.
264
265* sandbox-1.2.5 (2005/05/04)
266
267 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
268 sandbox.bashrc:
269 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
270 already set, init of the env vars fails for some reason, so do this later on,
271 and do not warn (bug #91431).
272
273 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
274 sandbox.bashrc:
275 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
276
277* sandbox-1.2.4 (2005/05/03)
278
279 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
280 Do not init the env entries with each call, as it creates too many calls to
281 lstat, etc. Should speedup things a bit, bug #91040.
282
283 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
284 Add /dev/pty to default write list. Noticed by Morfic.
285
286 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
287 sandbox.h:
288 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
289 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
290
291* sandbox-1.2.3 (2005/04/29)
292
293 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
294 Do not check for (*&#$(* CXX or F77.
295
296 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
297 Do not append '/' to pathname in filter_path() if it already ends with it.
298
299 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
300 With az's help, clean up autotools to work with cross-compiling.
301
302* sandbox-1.2.2 (2005/04/28)
303
304 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
305 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
306 have issues; bug #90592.
307
308* sandbox-1.2.1 (2005/04/23)
309
310 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
311 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
312 Make sure all functions used in libsandbox.c is declared static. Define
313 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
314 linking with its object. Hopefully this will fix bug #90153.
315
316* sandbox-1.2 (2005/04/23)
317
318 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
319 Allow lchown a symlink in write-allowed path pointing to write-denied
320 target.
321
322 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
323 Also show resolved symlink names in the log.
324
325 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
326 Seems -nostdlib was the problem with the constructor/destructor - remove it
327 from Makefile.am, and change the constructor/destructor names again.
328
329 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
330 Also rename the _init() and _fini() declarations.
331
332 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
333 Fixup the constructor/destructor function names again (they should be _init()
334 and _fini() it seems, and not being called caused sandbox_lib_path to be
335 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
336 Add both the path in given SANDBOX_x variable, as well as its symlink
337 resolved path in init_env_entries(). Modify filter_path() to be able to
338 resolve paths without resolving symlinks, as well as to be able to resolve
339 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
340 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
341 for bug #31019 cause access violations if we try to remove a symlink that is
342 not in protected path, but points to a protected path. Fix a memory leak in
343 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
344 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
345 (pid_string was uninitialized). General syntax cleanups.
346
347 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
348 infamous "pids file is not a regular file" w/out newline bug.
349
350 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
351 Correct libc_version path detection, since it was screwing up if libdir !=
352 "/lib/".
353
354 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
355 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
356
357 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
358 Fix symbols.in not added to dist.
359
360 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
361 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
362 White space fixes.
363
364 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
365 configure.in, getcwd.c, libsandbox.c, symbols.in:
366 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
367 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
368 for glibc and other libc's that use this. Update libsandbox.c to use these
369 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
370 process unset it.
371
5 01 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c: 372 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
6 killed off _init and _fini in favor of 373 killed off _init and _fini in favor of
7 void __attribute__ ((constructor)) init_func and 374 void __attribute__ ((constructor)) init_func and
8 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated. 375 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
9 376
10 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c, 377 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,

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