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

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