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

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