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

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