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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 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
6
7 Do not give an access violation if the access() system call do not have
8 write/read access - it does not actually modify, so we only need to return
9 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
10 bug #101433.
11
12 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
13
14 Still do normal log if debugging is requested.
15
16 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
17 to only enable if equal to "1" or "yes".
18
19 Add /dev/tts to write permit, bug #42809.
20
21 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
22 sandbox_futils.c:
23
24 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
25 in libsandbox .. bug #100309.
26
27 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
28
29 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
30
31* sandbox-1.2.11 (2005/07/14)
32
33 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
34 Fix getcwd, bug #98419.
35
36 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
37 libsandbox.c:
38 - Try to cleanup and make error handling/printing consistent.
39 - Remove old logs if present and conflicting with current.
40 - Fix compile error with previous change, and return rather then exit().
41
42 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
43 sandbox.h, sandbox_futils.c:
44 - Fix possible segfault in env init code.
45 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
46 write to /var/log/sandbox/, so in theory do not need all that.
47 - Redo the interface of the get_* functions so that we do not leak memory.
48 - Remove sandbox_dir and co - we are not using it anymore.
49 - Remove unused includes and variables.
50 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
51 OUTSIDE_LIBSANDBOX is not defined.
52 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
53 printing's last line not honouring NOCOLOR.
54
55 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
56 libsandbox.c:
57 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
58 write to it.
59 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
60 - Add check_prefixes() with major cleanup on check_access().
61 - Cleanup init_env_entries() and check_prefixes().
62
63 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
64 sandbox_futils.c, libsandbox.c:
65 Remove unused 'pids file' code.
66
67* sandbox-1.2.10 (2005/07/03)
68
69 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
70 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
71
72 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
73 General cleanups:
74 - Remove fooling around with exit codes - we error out on presence of a log
75 anyhow.
76 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
77 appropriate there.
78
79 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
80 Cleanup the fail_nametoolong stuff a bit more.
81
82 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
83 Remove hopefully the last ld.so.preload bits we do not use anymore.
84
85 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
86 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
87 in check_syscall(). Should speed things up a bit (at least for the getcwd()
88 and long path name test it goes down to under a second, and not 10+ seconds
89 like before). Also warn if we skip checking due to the canonicalized path
90 being too long.
91
92 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
93 More comment/readability cleanups.
94
95 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
96 sandbox_futils.c, libsandbox.c:
97 Some strncpy/strncat and other cleanups.
98
99* sandbox-1.2.9 (2005/06/09)
100
101 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
102 Move symlink hack down a bit to try and minimize on the amount of lstat()
103 calls we do.
104
105 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
106 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
107
108 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
109 Add wrapper for access() function, bug #85413.
110
111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
112 Use generic getcwd() implementation from uclibc - should be more portable
113 and looks a bit cleaner.
114
115 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
116 Make sure our true_* pointers are initialized to NULL, and that we check for
117 all references that they are valid.
118
119 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
120 Be default we will fail if the path name we try to canonicalize is too long.
121 This however could cause issues with some things (bug #94630 and #21766), so
122 if fail_nametoolong == 0, canonicalize() will return a null length string and
123 do not fail.
124
125 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
126 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
127 make sure we re-export the new TMPDIR environment variable.
128
129 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
130 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
131 by Marcus D. Hanwell <cryos@gentoo.org>.
132
133 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
134 Add /dev/console to write list, bug #38588.
135
136* sandbox-1.2.8 (2005/05/13)
137
138 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
139 sandbox.h, sandbox_futils.c:
140 General cleanups.
141
142 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
143 sandbox.h:
144 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
145
146 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
147 sandbox.h, sandbox_futils.c:
148 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
149 to use TMPDIR if present in environment.
150
151 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
152 Remove sandbox_log_file from main() as its no longer used.
153
154 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
155 sandbox_futils.c:
156 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
157 if already exported when sandbox started). Fix get_sandbox_log() and new
158 get_sandbox_debug_log() to not use already exported environment variables if
159 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
160 SB_PATH_MAX fixes.
161
162* sandbox-1.2.7 (2005/05/12)
163
164 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
165 sandbox_futils.c:
166 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
167
168 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
169 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
170 with '(null)' in it if we did not call sandbox with absolute path.
171
172 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
173 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
174 for the child.
175
176 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
177 Remove global preload_adaptable as it is no longer used.
178
179 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
180 Rewrite environment stuff to only be set when execve'ing the child process
181 to try and avoid issues like bug #91541 that causes sandbox to crash if
182 we set LD_PRELOAD sandbox side already.
183
184 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
185 Move print_sandbox_log() up to make things neater.
186
187 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
188 Remove load_preload_libs(), as its not used anymore.
189
190 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
191 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
192
193 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
194 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
195
196 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
197 Remove ld.so.preload crap - we are not going to use it again.
198
199 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
200 Fix typo in code that checks if we got valid group information, causing a
201 segmentation fault, bug #91637.
202
203* sandbox-1.2.6 (2005/05/10)
204
205 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
206 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
207 for some odd reason, bug #91541.
208
209 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
210 Fix typo (sizeof -> strlen).
211
212 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
213 rewrote the sbcontext caching code so it accounts for env changes since lib
214 initialization.
215
216 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
217 We create libctest.c via configure, so no need to keep it around. Do some
218 cleanup related to libctest.c and libctest during configure.
219
220 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
221 Add rename support of symlinks pointing to protected files/directories.
222
223* sandbox-1.2.5 (2005/05/04)
224
225 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
226 sandbox.bashrc:
227 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
228 already set, init of the env vars fails for some reason, so do this later on,
229 and do not warn (bug #91431).
230
231 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
232 sandbox.bashrc:
233 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
234
235* sandbox-1.2.4 (2005/05/03)
236
237 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
238 Do not init the env entries with each call, as it creates too many calls to
239 lstat, etc. Should speedup things a bit, bug #91040.
240
241 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
242 Add /dev/pty to default write list. Noticed by Morfic.
243
244 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
245 sandbox.h:
246 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
247 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
248
249* sandbox-1.2.3 (2005/04/29)
250
251 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
252 Do not check for (*&#$(* CXX or F77.
253
254 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
255 Do not append '/' to pathname in filter_path() if it already ends with it.
256
257 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
258 With az's help, clean up autotools to work with cross-compiling.
259
260* sandbox-1.2.2 (2005/04/28)
261
262 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
263 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
264 have issues; bug #90592.
265
266* sandbox-1.2.1 (2005/04/23)
267
268 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
269 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
270 Make sure all functions used in libsandbox.c is declared static. Define
271 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
272 linking with its object. Hopefully this will fix bug #90153.
273
274* sandbox-1.2 (2005/04/23)
275
276 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
277 Allow lchown a symlink in write-allowed path pointing to write-denied
278 target.
279
280 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
281 Also show resolved symlink names in the log.
282
283 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
284 Seems -nostdlib was the problem with the constructor/destructor - remove it
285 from Makefile.am, and change the constructor/destructor names again.
286
287 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
288 Also rename the _init() and _fini() declarations.
289
290 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
291 Fixup the constructor/destructor function names again (they should be _init()
292 and _fini() it seems, and not being called caused sandbox_lib_path to be
293 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
294 Add both the path in given SANDBOX_x variable, as well as its symlink
295 resolved path in init_env_entries(). Modify filter_path() to be able to
296 resolve paths without resolving symlinks, as well as to be able to resolve
297 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
298 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
299 for bug #31019 cause access violations if we try to remove a symlink that is
300 not in protected path, but points to a protected path. Fix a memory leak in
301 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
302 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
303 (pid_string was uninitialized). General syntax cleanups.
304
305 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
306 infamous "pids file is not a regular file" w/out newline bug.
307
308 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
309 Correct libc_version path detection, since it was screwing up if libdir !=
310 "/lib/".
311
312 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
313 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
314
315 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
316 Fix symbols.in not added to dist.
317
318 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
319 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
320 White space fixes.
321
322 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
323 configure.in, getcwd.c, libsandbox.c, symbols.in:
324 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
325 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
326 for glibc and other libc's that use this. Update libsandbox.c to use these
327 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
328 process unset it.
329
5 01 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c: 330 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
6 killed off _init and _fini in favor of 331 killed off _init and _fini in favor of
7 void __attribute__ ((constructor)) init_func and 332 void __attribute__ ((constructor)) init_func and
8 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated. 333 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
9 334
10 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c, 335 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,

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