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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 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
6 Fix getcwd, bug #98419.
7
8 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
9 libsandbox.c:
10 - Try to cleanup and make error handling/printing consistent.
11 - Remove old logs if present and conflicting with current.
12 - Fix compile error with previous change, and return rather then exit().
13
14 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
15 sandbox.h, sandbox_futils.c:
16 - Fix possible segfault in env init code.
17 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
18 write to /var/log/sandbox/, so in theory do not need all that.
19 - Redo the interface of the get_* functions so that we do not leak memory.
20 - Remove sandbox_dir and co - we are not using it anymore.
21 - Remove unused includes and variables.
22 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
23 OUTSIDE_LIBSANDBOX is not defined.
24 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
25 printing's last line not honouring NOCOLOR.
26
27 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
28 libsandbox.c:
29 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
30 write to it.
31 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
32 - Add check_prefixes() with major cleanup on check_access().
33 - Cleanup init_env_entries() and check_prefixes().
34
35 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
36 sandbox_futils.c, libsandbox.c:
37 Remove unused 'pids file' code.
38
39* sandbox-1.2.10 (2005/07/03)
40
41 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
42 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
43
44 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
45 General cleanups:
46 - Remove fooling around with exit codes - we error out on presence of a log
47 anyhow.
48 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
49 appropriate there.
50
51 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
52 Cleanup the fail_nametoolong stuff a bit more.
53
54 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
55 Remove hopefully the last ld.so.preload bits we do not use anymore.
56
57 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
59 in check_syscall(). Should speed things up a bit (at least for the getcwd()
60 and long path name test it goes down to under a second, and not 10+ seconds
61 like before). Also warn if we skip checking due to the canonicalized path
62 being too long.
63
64 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
65 More comment/readability cleanups.
66
67 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
68 sandbox_futils.c, libsandbox.c:
69 Some strncpy/strncat and other cleanups.
70
71* sandbox-1.2.9 (2005/06/09)
72
73 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
74 Move symlink hack down a bit to try and minimize on the amount of lstat()
75 calls we do.
76
77 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
78 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
79
80 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
81 Add wrapper for access() function, bug #85413.
82
83 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
84 Use generic getcwd() implementation from uclibc - should be more portable
85 and looks a bit cleaner.
86
87 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
88 Make sure our true_* pointers are initialized to NULL, and that we check for
89 all references that they are valid.
90
91 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
92 Be default we will fail if the path name we try to canonicalize is too long.
93 This however could cause issues with some things (bug #94630 and #21766), so
94 if fail_nametoolong == 0, canonicalize() will return a null length string and
95 do not fail.
96
97 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
98 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
99 make sure we re-export the new TMPDIR environment variable.
100
101 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
102 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
103 by Marcus D. Hanwell <cryos@gentoo.org>.
104
105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
106 Add /dev/console to write list, bug #38588.
107
108* sandbox-1.2.8 (2005/05/13)
109
110 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
111 sandbox.h, sandbox_futils.c:
112 General cleanups.
113
114 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
115 sandbox.h:
116 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
117
118 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
119 sandbox.h, sandbox_futils.c:
120 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
121 to use TMPDIR if present in environment.
122
123 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
124 Remove sandbox_log_file from main() as its no longer used.
125
126 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
127 sandbox_futils.c:
128 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
129 if already exported when sandbox started). Fix get_sandbox_log() and new
130 get_sandbox_debug_log() to not use already exported environment variables if
131 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
132 SB_PATH_MAX fixes.
133
134* sandbox-1.2.7 (2005/05/12)
135
136 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
137 sandbox_futils.c:
138 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
139
140 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
141 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
142 with '(null)' in it if we did not call sandbox with absolute path.
143
144 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
145 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
146 for the child.
147
148 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
149 Remove global preload_adaptable as it is no longer used.
150
151 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
152 Rewrite environment stuff to only be set when execve'ing the child process
153 to try and avoid issues like bug #91541 that causes sandbox to crash if
154 we set LD_PRELOAD sandbox side already.
155
156 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
157 Move print_sandbox_log() up to make things neater.
158
159 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
160 Remove load_preload_libs(), as its not used anymore.
161
162 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
163 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
164
165 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
166 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
167
168 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
169 Remove ld.so.preload crap - we are not going to use it again.
170
171 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
172 Fix typo in code that checks if we got valid group information, causing a
173 segmentation fault, bug #91637.
174
175* sandbox-1.2.6 (2005/05/10)
176
177 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
178 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
179 for some odd reason, bug #91541.
180
181 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
182 Fix typo (sizeof -> strlen).
183
184 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
185 rewrote the sbcontext caching code so it accounts for env changes since lib
186 initialization.
187
188 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
189 We create libctest.c via configure, so no need to keep it around. Do some
190 cleanup related to libctest.c and libctest during configure.
191
192 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
193 Add rename support of symlinks pointing to protected files/directories.
194
195* sandbox-1.2.5 (2005/05/04)
196
197 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
198 sandbox.bashrc:
199 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
200 already set, init of the env vars fails for some reason, so do this later on,
201 and do not warn (bug #91431).
202
203 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
204 sandbox.bashrc:
205 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
206
207* sandbox-1.2.4 (2005/05/03)
208
209 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
210 Do not init the env entries with each call, as it creates too many calls to
211 lstat, etc. Should speedup things a bit, bug #91040.
212
213 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
214 Add /dev/pty to default write list. Noticed by Morfic.
215
216 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
217 sandbox.h:
218 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
219 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
220
221* sandbox-1.2.3 (2005/04/29)
222
223 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
224 Do not check for (*&#$(* CXX or F77.
225
226 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
227 Do not append '/' to pathname in filter_path() if it already ends with it.
228
229 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
230 With az's help, clean up autotools to work with cross-compiling.
231
232* sandbox-1.2.2 (2005/04/28)
233
234 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
235 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
236 have issues; bug #90592.
237
238* sandbox-1.2.1 (2005/04/23)
239
240 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
241 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
242 Make sure all functions used in libsandbox.c is declared static. Define
243 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
244 linking with its object. Hopefully this will fix bug #90153.
245
246* sandbox-1.2 (2005/04/23)
247
248 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
249 Allow lchown a symlink in write-allowed path pointing to write-denied
250 target.
251
252 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
253 Also show resolved symlink names in the log.
254
255 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
256 Seems -nostdlib was the problem with the constructor/destructor - remove it
257 from Makefile.am, and change the constructor/destructor names again.
258
259 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
260 Also rename the _init() and _fini() declarations.
261
262 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
263 Fixup the constructor/destructor function names again (they should be _init()
264 and _fini() it seems, and not being called caused sandbox_lib_path to be
265 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
266 Add both the path in given SANDBOX_x variable, as well as its symlink
267 resolved path in init_env_entries(). Modify filter_path() to be able to
268 resolve paths without resolving symlinks, as well as to be able to resolve
269 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
270 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
271 for bug #31019 cause access violations if we try to remove a symlink that is
272 not in protected path, but points to a protected path. Fix a memory leak in
273 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
274 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
275 (pid_string was uninitialized). General syntax cleanups.
276
277 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
278 infamous "pids file is not a regular file" w/out newline bug.
279
280 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
281 Correct libc_version path detection, since it was screwing up if libdir !=
282 "/lib/".
283
284 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
285 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
286
287 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
288 Fix symbols.in not added to dist.
289
290 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
291 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
292 White space fixes.
293
294 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
295 configure.in, getcwd.c, libsandbox.c, symbols.in:
296 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
297 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
298 for glibc and other libc's that use this. Update libsandbox.c to use these
299 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
300 process unset it.
301
5 01 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c: 302 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
6 killed off _init and _fini in favor of 303 killed off _init and _fini in favor of
7 void __attribute__ ((constructor)) init_func and 304 void __attribute__ ((constructor)) init_func and
8 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated. 305 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
9 306
10 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c, 307 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,

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