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

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