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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 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
6 Fix possible segfault in env init code.
7
8 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
9 libsandbox.c:
10 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
11 write to it.
12 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
13 - Add check_prefixes() with major cleanup on check_access().
14 - Cleanup init_env_entries() and check_prefixes().
15
16 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
17 sandbox_futils.c, libsandbox.c:
18 Remove unused 'pids file' code.
19
20* sandbox-1.2.10 (2005/07/03)
21
22 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
23 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
24
25 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
26 General cleanups:
27 - Remove fooling around with exit codes - we error out on presence of a log
28 anyhow.
29 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
30 appropriate there.
31
32 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
33 Cleanup the fail_nametoolong stuff a bit more.
34
35 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
36 Remove hopefully the last ld.so.preload bits we do not use anymore.
37
38 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
39 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
40 in check_syscall(). Should speed things up a bit (at least for the getcwd()
41 and long path name test it goes down to under a second, and not 10+ seconds
42 like before). Also warn if we skip checking due to the canonicalized path
43 being too long.
44
45 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
46 More comment/readability cleanups.
47
48 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
49 sandbox_futils.c, libsandbox.c:
50 Some strncpy/strncat and other cleanups.
51
52* sandbox-1.2.9 (2005/06/09)
53
54 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
55 Move symlink hack down a bit to try and minimize on the amount of lstat()
56 calls we do.
57
58 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
59 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
60
61 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
62 Add wrapper for access() function, bug #85413.
63
64 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
65 Use generic getcwd() implementation from uclibc - should be more portable
66 and looks a bit cleaner.
67
68 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
69 Make sure our true_* pointers are initialized to NULL, and that we check for
70 all references that they are valid.
71
72 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
73 Be default we will fail if the path name we try to canonicalize is too long.
74 This however could cause issues with some things (bug #94630 and #21766), so
75 if fail_nametoolong == 0, canonicalize() will return a null length string and
76 do not fail.
77
78 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
79 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
80 make sure we re-export the new TMPDIR environment variable.
81
82 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
83 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
84 by Marcus D. Hanwell <cryos@gentoo.org>.
85
86 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
87 Add /dev/console to write list, bug #38588.
88
89* sandbox-1.2.8 (2005/05/13)
90
91 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
92 sandbox.h, sandbox_futils.c:
93 General cleanups.
94
95 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
96 sandbox.h:
97 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
98
99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
100 sandbox.h, sandbox_futils.c:
101 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
102 to use TMPDIR if present in environment.
103
104 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
105 Remove sandbox_log_file from main() as its no longer used.
106
107 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
108 sandbox_futils.c:
109 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
110 if already exported when sandbox started). Fix get_sandbox_log() and new
111 get_sandbox_debug_log() to not use already exported environment variables if
112 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
113 SB_PATH_MAX fixes.
114
115* sandbox-1.2.7 (2005/05/12)
116
117 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
118 sandbox_futils.c:
119 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
120
121 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
122 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
123 with '(null)' in it if we did not call sandbox with absolute path.
124
125 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
126 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
127 for the child.
128
129 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
130 Remove global preload_adaptable as it is no longer used.
131
132 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
133 Rewrite environment stuff to only be set when execve'ing the child process
134 to try and avoid issues like bug #91541 that causes sandbox to crash if
135 we set LD_PRELOAD sandbox side already.
136
137 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
138 Move print_sandbox_log() up to make things neater.
139
140 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
141 Remove load_preload_libs(), as its not used anymore.
142
143 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
144 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
145
146 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
147 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
148
149 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
150 Remove ld.so.preload crap - we are not going to use it again.
151
152 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
153 Fix typo in code that checks if we got valid group information, causing a
154 segmentation fault, bug #91637.
155
156* sandbox-1.2.6 (2005/05/10)
157
158 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
159 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
160 for some odd reason, bug #91541.
161
162 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
163 Fix typo (sizeof -> strlen).
164
165 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
166 rewrote the sbcontext caching code so it accounts for env changes since lib
167 initialization.
168
169 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
170 We create libctest.c via configure, so no need to keep it around. Do some
171 cleanup related to libctest.c and libctest during configure.
172
173 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
174 Add rename support of symlinks pointing to protected files/directories.
175
176* sandbox-1.2.5 (2005/05/04)
177
178 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
179 sandbox.bashrc:
180 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
181 already set, init of the env vars fails for some reason, so do this later on,
182 and do not warn (bug #91431).
183
184 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
185 sandbox.bashrc:
186 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
187
188* sandbox-1.2.4 (2005/05/03)
189
190 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
191 Do not init the env entries with each call, as it creates too many calls to
192 lstat, etc. Should speedup things a bit, bug #91040.
193
194 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
195 Add /dev/pty to default write list. Noticed by Morfic.
196
197 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
198 sandbox.h:
199 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
200 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
201
202* sandbox-1.2.3 (2005/04/29)
203
204 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
205 Do not check for (*&#$(* CXX or F77.
206
207 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
208 Do not append '/' to pathname in filter_path() if it already ends with it.
209
210 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
211 With az's help, clean up autotools to work with cross-compiling.
212
213* sandbox-1.2.2 (2005/04/28)
214
215 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
216 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
217 have issues; bug #90592.
218
219* sandbox-1.2.1 (2005/04/23)
220
221 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
222 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
223 Make sure all functions used in libsandbox.c is declared static. Define
224 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
225 linking with its object. Hopefully this will fix bug #90153.
226
227* sandbox-1.2 (2005/04/23)
228
229 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
230 Allow lchown a symlink in write-allowed path pointing to write-denied
231 target.
232
233 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
234 Also show resolved symlink names in the log.
235
236 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
237 Seems -nostdlib was the problem with the constructor/destructor - remove it
238 from Makefile.am, and change the constructor/destructor names again.
239
240 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
241 Also rename the _init() and _fini() declarations.
242
243 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
244 Fixup the constructor/destructor function names again (they should be _init()
245 and _fini() it seems, and not being called caused sandbox_lib_path to be
246 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
247 Add both the path in given SANDBOX_x variable, as well as its symlink
248 resolved path in init_env_entries(). Modify filter_path() to be able to
249 resolve paths without resolving symlinks, as well as to be able to resolve
250 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
251 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
252 for bug #31019 cause access violations if we try to remove a symlink that is
253 not in protected path, but points to a protected path. Fix a memory leak in
254 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
255 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
256 (pid_string was uninitialized). General syntax cleanups.
257
258 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
259 infamous "pids file is not a regular file" w/out newline bug.
260
261 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
262 Correct libc_version path detection, since it was screwing up if libdir !=
263 "/lib/".
264
265 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
266 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
267
268 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
269 Fix symbols.in not added to dist.
270
271 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
272 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
273 White space fixes.
274
275 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
276 configure.in, getcwd.c, libsandbox.c, symbols.in:
277 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
278 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
279 for glibc and other libc's that use this. Update libsandbox.c to use these
280 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
281 process unset it.
282
283 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
284 killed off _init and _fini in favor of
285 void __attribute__ ((constructor)) init_func and
286 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
287
288 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
289 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
290 having the hick-ups.
291
292 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
293 Makefile.am: Fixed compilation.
4 294
5 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4: 295 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
6 Gutted the bugger so it stops checking for a c++ and fortran compiler. 296 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 297 Do *not* regenerate aclocal.m4 for making a release until a better
8 solution is created. 298 solution is created.

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