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

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