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

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