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

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