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

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