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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, sandbox.c,
6 sandbox.h, sandbox_futils.c:
7 - Fix possible segfault in env init code.
8 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
9 write to /var/log/sandbox/, so in theory do not need all that.
10 - Redo the interface of the get_* functions so that we do not leak memory.
11 - Remove sandbox_dir and co - we are not using it anymore.
12
13 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
14 libsandbox.c:
15 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
16 write to it.
17 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
18 - Add check_prefixes() with major cleanup on check_access().
19 - Cleanup init_env_entries() and check_prefixes().
20
21 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
22 sandbox_futils.c, libsandbox.c:
23 Remove unused 'pids file' code.
24
25* sandbox-1.2.10 (2005/07/03)
26
27 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
28 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
29
30 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
31 General cleanups:
32 - Remove fooling around with exit codes - we error out on presence of a log
33 anyhow.
34 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
35 appropriate there.
36
37 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
38 Cleanup the fail_nametoolong stuff a bit more.
39
40 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
41 Remove hopefully the last ld.so.preload bits we do not use anymore.
42
43 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
44 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
45 in check_syscall(). Should speed things up a bit (at least for the getcwd()
46 and long path name test it goes down to under a second, and not 10+ seconds
47 like before). Also warn if we skip checking due to the canonicalized path
48 being too long.
49
50 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
51 More comment/readability cleanups.
52
53 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
54 sandbox_futils.c, libsandbox.c:
55 Some strncpy/strncat and other cleanups.
56
57* sandbox-1.2.9 (2005/06/09)
58
59 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
60 Move symlink hack down a bit to try and minimize on the amount of lstat()
61 calls we do.
62
63 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
64 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
65
66 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
67 Add wrapper for access() function, bug #85413.
68
69 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
70 Use generic getcwd() implementation from uclibc - should be more portable
71 and looks a bit cleaner.
72
73 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
74 Make sure our true_* pointers are initialized to NULL, and that we check for
75 all references that they are valid.
76
77 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
78 Be default we will fail if the path name we try to canonicalize is too long.
79 This however could cause issues with some things (bug #94630 and #21766), so
80 if fail_nametoolong == 0, canonicalize() will return a null length string and
81 do not fail.
82
83 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
84 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
85 make sure we re-export the new TMPDIR environment variable.
86
87 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
88 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
89 by Marcus D. Hanwell <cryos@gentoo.org>.
90
91 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
92 Add /dev/console to write list, bug #38588.
93
94* sandbox-1.2.8 (2005/05/13)
95
96 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
97 sandbox.h, sandbox_futils.c:
98 General cleanups.
99
100 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
101 sandbox.h:
102 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
103
104 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
105 sandbox.h, sandbox_futils.c:
106 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
107 to use TMPDIR if present in environment.
108
109 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
110 Remove sandbox_log_file from main() as its no longer used.
111
112 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
113 sandbox_futils.c:
114 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
115 if already exported when sandbox started). Fix get_sandbox_log() and new
116 get_sandbox_debug_log() to not use already exported environment variables if
117 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
118 SB_PATH_MAX fixes.
119
120* sandbox-1.2.7 (2005/05/12)
121
122 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
123 sandbox_futils.c:
124 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
125
126 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
127 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
128 with '(null)' in it if we did not call sandbox with absolute path.
129
130 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
131 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
132 for the child.
133
134 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
135 Remove global preload_adaptable as it is no longer used.
136
137 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
138 Rewrite environment stuff to only be set when execve'ing the child process
139 to try and avoid issues like bug #91541 that causes sandbox to crash if
140 we set LD_PRELOAD sandbox side already.
141
142 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
143 Move print_sandbox_log() up to make things neater.
144
145 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
146 Remove load_preload_libs(), as its not used anymore.
147
148 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
149 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
150
151 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
152 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
153
154 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
155 Remove ld.so.preload crap - we are not going to use it again.
156
157 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
158 Fix typo in code that checks if we got valid group information, causing a
159 segmentation fault, bug #91637.
160
161* sandbox-1.2.6 (2005/05/10)
162
163 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
164 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
165 for some odd reason, bug #91541.
166
167 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
168 Fix typo (sizeof -> strlen).
169
170 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
171 rewrote the sbcontext caching code so it accounts for env changes since lib
172 initialization.
173
174 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
175 We create libctest.c via configure, so no need to keep it around. Do some
176 cleanup related to libctest.c and libctest during configure.
177
178 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
179 Add rename support of symlinks pointing to protected files/directories.
180
181* sandbox-1.2.5 (2005/05/04)
182
183 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
184 sandbox.bashrc:
185 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
186 already set, init of the env vars fails for some reason, so do this later on,
187 and do not warn (bug #91431).
188
189 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
190 sandbox.bashrc:
191 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
192
193* sandbox-1.2.4 (2005/05/03)
194
195 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
196 Do not init the env entries with each call, as it creates too many calls to
197 lstat, etc. Should speedup things a bit, bug #91040.
198
199 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
200 Add /dev/pty to default write list. Noticed by Morfic.
201
202 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
203 sandbox.h:
204 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
205 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
206
207* sandbox-1.2.3 (2005/04/29)
208
209 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
210 Do not check for (*&#$(* CXX or F77.
211
212 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
213 Do not append '/' to pathname in filter_path() if it already ends with it.
214
215 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
216 With az's help, clean up autotools to work with cross-compiling.
217
218* sandbox-1.2.2 (2005/04/28)
219
220 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
221 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
222 have issues; bug #90592.
223
224* sandbox-1.2.1 (2005/04/23)
225
226 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
227 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
228 Make sure all functions used in libsandbox.c is declared static. Define
229 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
230 linking with its object. Hopefully this will fix bug #90153.
231
232* sandbox-1.2 (2005/04/23)
233
234 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
235 Allow lchown a symlink in write-allowed path pointing to write-denied
236 target.
237
238 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
239 Also show resolved symlink names in the log.
240
241 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
242 Seems -nostdlib was the problem with the constructor/destructor - remove it
243 from Makefile.am, and change the constructor/destructor names again.
244
245 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
246 Also rename the _init() and _fini() declarations.
247
248 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
249 Fixup the constructor/destructor function names again (they should be _init()
250 and _fini() it seems, and not being called caused sandbox_lib_path to be
251 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
252 Add both the path in given SANDBOX_x variable, as well as its symlink
253 resolved path in init_env_entries(). Modify filter_path() to be able to
254 resolve paths without resolving symlinks, as well as to be able to resolve
255 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
256 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
257 for bug #31019 cause access violations if we try to remove a symlink that is
258 not in protected path, but points to a protected path. Fix a memory leak in
259 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
260 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
261 (pid_string was uninitialized). General syntax cleanups.
262
263 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
264 infamous "pids file is not a regular file" w/out newline bug.
265
266 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
267 Correct libc_version path detection, since it was screwing up if libdir !=
268 "/lib/".
269
270 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
271 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
272
273 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
274 Fix symbols.in not added to dist.
275
276 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
277 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
278 White space fixes.
279
280 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
281 configure.in, getcwd.c, libsandbox.c, symbols.in:
282 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
283 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
284 for glibc and other libc's that use this. Update libsandbox.c to use these
285 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
286 process unset it.
287
288 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
289 killed off _init and _fini in favor of
290 void __attribute__ ((constructor)) init_func and
291 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
292
293 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
294 canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
295 having the hick-ups.
296
297 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
298 Makefile.am: Fixed compilation.
4 299
5 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4: 300 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
6 Gutted the bugger so it stops checking for a c++ and fortran compiler. 301 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 302 Do *not* regenerate aclocal.m4 for making a release until a better
8 solution is created. 303 solution is created.

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