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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, sandbox.c,
6 sandbox.h:
7
8 Do not give an access violation if the access() system call do not have
9 write/read access - it does not actually modify, so we only need to return
10 not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
11 bug #101433.
12
13 If we are called from the command line, do not care about PORTAGE_TMPDIR,
14 and make the current directory the work directory. Also rename the variable
15 portage_tmp_dir to work_dir.
16
17 Remove the tmp_dir variable - we do not need it.
18
19 Improve error handling for get_sandbox_*_envvar() functions.
20
21 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
22
23 Still do normal log if debugging is requested.
24
25 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
26 to only enable if equal to "1" or "yes".
27
28 Add /dev/tts to write permit, bug #42809.
29
30 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
31 sandbox_futils.c:
32
33 Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
34 in libsandbox .. bug #100309.
35
36 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
37
38 Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
39
40* sandbox-1.2.11 (2005/07/14)
41
42 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
43 Fix getcwd, bug #98419.
44
45 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
46 libsandbox.c:
47 - Try to cleanup and make error handling/printing consistent.
48 - Remove old logs if present and conflicting with current.
49 - Fix compile error with previous change, and return rather then exit().
50
51 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
52 sandbox.h, sandbox_futils.c:
53 - Fix possible segfault in env init code.
54 - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
55 write to /var/log/sandbox/, so in theory do not need all that.
56 - Redo the interface of the get_* functions so that we do not leak memory.
57 - Remove sandbox_dir and co - we are not using it anymore.
58 - Remove unused includes and variables.
59 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
60 OUTSIDE_LIBSANDBOX is not defined.
61 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
62 printing's last line not honouring NOCOLOR.
63
64 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
65 libsandbox.c:
66 - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
67 write to it.
68 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
69 - Add check_prefixes() with major cleanup on check_access().
70 - Cleanup init_env_entries() and check_prefixes().
71
72 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
73 sandbox_futils.c, libsandbox.c:
74 Remove unused 'pids file' code.
75
76* sandbox-1.2.10 (2005/07/03)
77
78 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
79 Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
80
81 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
82 General cleanups:
83 - Remove fooling around with exit codes - we error out on presence of a log
84 anyhow.
85 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
86 appropriate there.
87
88 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
89 Cleanup the fail_nametoolong stuff a bit more.
90
91 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
92 Remove hopefully the last ld.so.preload bits we do not use anymore.
93
94 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
95 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
96 in check_syscall(). Should speed things up a bit (at least for the getcwd()
97 and long path name test it goes down to under a second, and not 10+ seconds
98 like before). Also warn if we skip checking due to the canonicalized path
99 being too long.
100
101 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
102 More comment/readability cleanups.
103
104 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
105 sandbox_futils.c, libsandbox.c:
106 Some strncpy/strncat and other cleanups.
107
108* sandbox-1.2.9 (2005/06/09)
109
110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
111 Move symlink hack down a bit to try and minimize on the amount of lstat()
112 calls we do.
113
114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
115 Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
116
117 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
118 Add wrapper for access() function, bug #85413.
119
120 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
121 Use generic getcwd() implementation from uclibc - should be more portable
122 and looks a bit cleaner.
123
124 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
125 Make sure our true_* pointers are initialized to NULL, and that we check for
126 all references that they are valid.
127
128 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
129 Be default we will fail if the path name we try to canonicalize is too long.
130 This however could cause issues with some things (bug #94630 and #21766), so
131 if fail_nametoolong == 0, canonicalize() will return a null length string and
132 do not fail.
133
134 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
135 Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
136 make sure we re-export the new TMPDIR environment variable.
137
138 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
139 Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
140 by Marcus D. Hanwell <cryos@gentoo.org>.
141
142 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
143 Add /dev/console to write list, bug #38588.
144
145* sandbox-1.2.8 (2005/05/13)
146
147 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
148 sandbox.h, sandbox_futils.c:
149 General cleanups.
150
151 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
152 sandbox.h:
153 Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
154
155 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
156 sandbox.h, sandbox_futils.c:
157 Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
158 to use TMPDIR if present in environment.
159
160 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
161 Remove sandbox_log_file from main() as its no longer used.
162
163 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
164 sandbox_futils.c:
165 Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
166 if already exported when sandbox started). Fix get_sandbox_log() and new
167 get_sandbox_debug_log() to not use already exported environment variables if
168 they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
169 SB_PATH_MAX fixes.
170
171* sandbox-1.2.7 (2005/05/12)
172
173 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
174 sandbox_futils.c:
175 More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
176
177 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
178 Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
179 with '(null)' in it if we did not call sandbox with absolute path.
180
181 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
182 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
183 for the child.
184
185 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
186 Remove global preload_adaptable as it is no longer used.
187
188 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
189 Rewrite environment stuff to only be set when execve'ing the child process
190 to try and avoid issues like bug #91541 that causes sandbox to crash if
191 we set LD_PRELOAD sandbox side already.
192
193 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
194 Move print_sandbox_log() up to make things neater.
195
196 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
197 Remove load_preload_libs(), as its not used anymore.
198
199 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
200 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
201
202 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
203 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
204
205 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
206 Remove ld.so.preload crap - we are not going to use it again.
207
208 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
209 Fix typo in code that checks if we got valid group information, causing a
210 segmentation fault, bug #91637.
211
212* sandbox-1.2.6 (2005/05/10)
213
214 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
215 Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
216 for some odd reason, bug #91541.
217
218 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
219 Fix typo (sizeof -> strlen).
220
221 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
222 rewrote the sbcontext caching code so it accounts for env changes since lib
223 initialization.
224
225 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
226 We create libctest.c via configure, so no need to keep it around. Do some
227 cleanup related to libctest.c and libctest during configure.
228
229 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
230 Add rename support of symlinks pointing to protected files/directories.
231
232* sandbox-1.2.5 (2005/05/04)
233
234 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
235 sandbox.bashrc:
236 Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
237 already set, init of the env vars fails for some reason, so do this later on,
238 and do not warn (bug #91431).
239
240 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
241 sandbox.bashrc:
242 Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
243
244* sandbox-1.2.4 (2005/05/03)
245
246 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
247 Do not init the env entries with each call, as it creates too many calls to
248 lstat, etc. Should speedup things a bit, bug #91040.
249
250 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
251 Add /dev/pty to default write list. Noticed by Morfic.
252
253 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
254 sandbox.h:
255 uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
256 exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
257
258* sandbox-1.2.3 (2005/04/29)
259
260 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
261 Do not check for (*&#$(* CXX or F77.
262
263 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
264 Do not append '/' to pathname in filter_path() if it already ends with it.
265
266 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
267 With az's help, clean up autotools to work with cross-compiling.
268
269* sandbox-1.2.2 (2005/04/28)
270
271 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
272 Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
273 have issues; bug #90592.
274
275* sandbox-1.2.1 (2005/04/23)
276
277 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
278 getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
279 Make sure all functions used in libsandbox.c is declared static. Define
280 SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
281 linking with its object. Hopefully this will fix bug #90153.
282
283* sandbox-1.2 (2005/04/23)
284
285 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
286 Allow lchown a symlink in write-allowed path pointing to write-denied
287 target.
288
289 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
290 Also show resolved symlink names in the log.
291
292 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
293 Seems -nostdlib was the problem with the constructor/destructor - remove it
294 from Makefile.am, and change the constructor/destructor names again.
295
296 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
297 Also rename the _init() and _fini() declarations.
298
299 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
300 Fixup the constructor/destructor function names again (they should be _init()
301 and _fini() it seems, and not being called caused sandbox_lib_path to be
302 unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
303 Add both the path in given SANDBOX_x variable, as well as its symlink
304 resolved path in init_env_entries(). Modify filter_path() to be able to
305 resolve paths without resolving symlinks, as well as to be able to resolve
306 symlinks. Fix a possible segfault in check_access(). Add symlink resolving
307 to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
308 for bug #31019 cause access violations if we try to remove a symlink that is
309 not in protected path, but points to a protected path. Fix a memory leak in
310 sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
311 (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
312 (pid_string was uninitialized). General syntax cleanups.
313
314 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
315 infamous "pids file is not a regular file" w/out newline bug.
316
317 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
318 Correct libc_version path detection, since it was screwing up if libdir !=
319 "/lib/".
320
321 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
322 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
323
324 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
325 Fix symbols.in not added to dist.
326
327 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
328 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
329 White space fixes.
330
331 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
332 configure.in, getcwd.c, libsandbox.c, symbols.in:
333 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
334 getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
335 for glibc and other libc's that use this. Update libsandbox.c to use these
336 symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
337 process unset it.
338
5 01 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c: 339 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
6 killed off _init and _fini in favor of 340 killed off _init and _fini in favor of
7 void __attribute__ ((constructor)) init_func and 341 void __attribute__ ((constructor)) init_func and
8 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated. 342 void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
9 343
10 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c, 344 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,

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