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Revision 179 - (hide annotations) (download)
Mon Nov 28 11:04:14 2005 UTC (8 years, 4 months ago) by azarah
Original Path: trunk/ChangeLog
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Detect if we on 64bit arch automatically.
1 ferringb 2 # ChangeLog for Path Sandbox
2 vapier 53 # Copyright 1999-2005 Gentoo Foundation; Distributed under the GPL v2
3 ferringb 2 # $Header$
4    
5 azarah 179 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> configure.in:
6    
7     Detect if we on 64bit arch automatically.
8    
9 azarah 176 * sandbox-1.2.14 (2005/11/28)
10    
11 azarah 173 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
12 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
13 azarah 172
14     Check generic getcwd()'s return as well for validity, bug #101728.
15    
16 azarah 173 Cleanup environ variables.
17    
18 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
19     to readonly in sandbox.bashrc.
20    
21 azarah 175 Make sure we use our bashrc.
22    
23 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
24    
25     Do not pass mode to true_open and true_open64 if not needed. Should fix a
26     segfault in some cases.
27    
28 azarah 169 * sandbox-1.2.13 (2005/09/12)
29 azarah 167
30 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
31 azarah 165
32     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
33     itself.
34    
35 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
36     uClibc 'call preloaded library fini before that of app' issue ... probably
37     will not help much, but we try.
38    
39 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
40    
41     Also allow symlink() system call to operate on a symlink in a writable path
42     that points to non-writable path, bug #104711.
43    
44 azarah 160 * sandbox-1.2.12 (2005/08/05)
45    
46 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
47     sandbox.h:
48 azarah 156
49     Do not give an access violation if the access() system call do not have
50     write/read access - it does not actually modify, so we only need to return
51     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
52     bug #101433.
53    
54 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
55     and make the current directory the work directory. Also rename the variable
56     portage_tmp_dir to work_dir.
57    
58 azarah 158 Remove the tmp_dir variable - we do not need it.
59    
60 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
61    
62 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
63    
64     Still do normal log if debugging is requested.
65    
66 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
67     to only enable if equal to "1" or "yes".
68    
69 azarah 155 Add /dev/tts to write permit, bug #42809.
70    
71 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
72     sandbox_futils.c:
73    
74     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
75     in libsandbox .. bug #100309.
76    
77 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
78    
79     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
80    
81 azarah 149 * sandbox-1.2.11 (2005/07/14)
82    
83 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
84     Fix getcwd, bug #98419.
85    
86 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
87     libsandbox.c:
88 azarah 146 - Try to cleanup and make error handling/printing consistent.
89     - Remove old logs if present and conflicting with current.
90 azarah 147 - Fix compile error with previous change, and return rather then exit().
91 azarah 145
92 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
93     sandbox.h, sandbox_futils.c:
94     - Fix possible segfault in env init code.
95     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
96     write to /var/log/sandbox/, so in theory do not need all that.
97 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
98 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
99 azarah 142 - Remove unused includes and variables.
100 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
101     OUTSIDE_LIBSANDBOX is not defined.
102 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
103     printing's last line not honouring NOCOLOR.
104 azarah 138
105 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
106     libsandbox.c:
107     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
108     write to it.
109 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
110 azarah 136 - Add check_prefixes() with major cleanup on check_access().
111 azarah 137 - Cleanup init_env_entries() and check_prefixes().
112 azarah 134
113 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
114     sandbox_futils.c, libsandbox.c:
115     Remove unused 'pids file' code.
116    
117 azarah 128 * sandbox-1.2.10 (2005/07/03)
118    
119 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
120     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
121    
122 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
123     General cleanups:
124     - Remove fooling around with exit codes - we error out on presence of a log
125     anyhow.
126 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
127     appropriate there.
128 azarah 123
129 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
130     Cleanup the fail_nametoolong stuff a bit more.
131    
132 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
133 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
134    
135     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
136 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
137     in check_syscall(). Should speed things up a bit (at least for the getcwd()
138     and long path name test it goes down to under a second, and not 10+ seconds
139     like before). Also warn if we skip checking due to the canonicalized path
140     being too long.
141    
142     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
143 azarah 118 More comment/readability cleanups.
144    
145 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
146     sandbox_futils.c, libsandbox.c:
147     Some strncpy/strncat and other cleanups.
148    
149 azarah 115 * sandbox-1.2.9 (2005/06/09)
150    
151 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
152     Move symlink hack down a bit to try and minimize on the amount of lstat()
153     calls we do.
154    
155 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
156     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
157    
158 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
159     Add wrapper for access() function, bug #85413.
160    
161 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
162     Use generic getcwd() implementation from uclibc - should be more portable
163     and looks a bit cleaner.
164    
165 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
166     Make sure our true_* pointers are initialized to NULL, and that we check for
167     all references that they are valid.
168    
169 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
170     Be default we will fail if the path name we try to canonicalize is too long.
171     This however could cause issues with some things (bug #94630 and #21766), so
172     if fail_nametoolong == 0, canonicalize() will return a null length string and
173     do not fail.
174    
175 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
176     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
177     make sure we re-export the new TMPDIR environment variable.
178    
179 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
180     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
181     by Marcus D. Hanwell <cryos@gentoo.org>.
182    
183 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
184     Add /dev/console to write list, bug #38588.
185    
186 azarah 102 * sandbox-1.2.8 (2005/05/13)
187    
188 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
189 azarah 101 sandbox.h, sandbox_futils.c:
190     General cleanups.
191    
192     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
193 azarah 100 sandbox.h:
194     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
195    
196     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
197 azarah 99 sandbox.h, sandbox_futils.c:
198     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
199     to use TMPDIR if present in environment.
200    
201 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
202     Remove sandbox_log_file from main() as its no longer used.
203    
204 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
205     sandbox_futils.c:
206     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
207     if already exported when sandbox started). Fix get_sandbox_log() and new
208     get_sandbox_debug_log() to not use already exported environment variables if
209     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
210     SB_PATH_MAX fixes.
211    
212 azarah 94 * sandbox-1.2.7 (2005/05/12)
213    
214 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
215     sandbox_futils.c:
216     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
217    
218 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
219     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
220     with '(null)' in it if we did not call sandbox with absolute path.
221    
222 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
223 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
224     for the child.
225    
226     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
227 azarah 90 Remove global preload_adaptable as it is no longer used.
228    
229     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
230 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
231     to try and avoid issues like bug #91541 that causes sandbox to crash if
232     we set LD_PRELOAD sandbox side already.
233    
234 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
235 azarah 88 Move print_sandbox_log() up to make things neater.
236    
237     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
238 azarah 87 Remove load_preload_libs(), as its not used anymore.
239    
240 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
241 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
242    
243     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
244 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
245    
246     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
247 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
248    
249 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
250     Fix typo in code that checks if we got valid group information, causing a
251     segmentation fault, bug #91637.
252    
253 azarah 79 * sandbox-1.2.6 (2005/05/10)
254    
255 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
256     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
257     for some odd reason, bug #91541.
258    
259 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
260     Fix typo (sizeof -> strlen).
261    
262 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
263     rewrote the sbcontext caching code so it accounts for env changes since lib
264     initialization.
265    
266 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
267     We create libctest.c via configure, so no need to keep it around. Do some
268     cleanup related to libctest.c and libctest during configure.
269    
270 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
271     Add rename support of symlinks pointing to protected files/directories.
272    
273 azarah 72 * sandbox-1.2.5 (2005/05/04)
274    
275 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
276     sandbox.bashrc:
277     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
278     already set, init of the env vars fails for some reason, so do this later on,
279     and do not warn (bug #91431).
280    
281 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
282     sandbox.bashrc:
283     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
284    
285 azarah 68 * sandbox-1.2.4 (2005/05/03)
286    
287 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
288     Do not init the env entries with each call, as it creates too many calls to
289 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
290 azarah 66
291 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
292     Add /dev/pty to default write list. Noticed by Morfic.
293    
294 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
295     sandbox.h:
296     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
297     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
298    
299 azarah 59 * sandbox-1.2.3 (2005/04/29)
300    
301 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
302     Do not check for (*&#$(* CXX or F77.
303    
304 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
305     Do not append '/' to pathname in filter_path() if it already ends with it.
306    
307 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
308     With az's help, clean up autotools to work with cross-compiling.
309    
310 azarah 59 * sandbox-1.2.2 (2005/04/28)
311 azarah 48
312 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
313     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
314     have issues; bug #90592.
315    
316 azarah 59 * sandbox-1.2.1 (2005/04/23)
317 azarah 44
318 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
319     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
320     Make sure all functions used in libsandbox.c is declared static. Define
321     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
322     linking with its object. Hopefully this will fix bug #90153.
323    
324 azarah 59 * sandbox-1.2 (2005/04/23)
325 azarah 46
326 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
327     Allow lchown a symlink in write-allowed path pointing to write-denied
328     target.
329    
330 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
331     Also show resolved symlink names in the log.
332    
333 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
334     Seems -nostdlib was the problem with the constructor/destructor - remove it
335     from Makefile.am, and change the constructor/destructor names again.
336    
337 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
338     Also rename the _init() and _fini() declarations.
339    
340 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
341     Fixup the constructor/destructor function names again (they should be _init()
342     and _fini() it seems, and not being called caused sandbox_lib_path to be
343     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
344     Add both the path in given SANDBOX_x variable, as well as its symlink
345     resolved path in init_env_entries(). Modify filter_path() to be able to
346     resolve paths without resolving symlinks, as well as to be able to resolve
347     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
348     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
349     for bug #31019 cause access violations if we try to remove a symlink that is
350     not in protected path, but points to a protected path. Fix a memory leak in
351     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
352     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
353     (pid_string was uninitialized). General syntax cleanups.
354    
355 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
356     infamous "pids file is not a regular file" w/out newline bug.
357    
358 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
359     Correct libc_version path detection, since it was screwing up if libdir !=
360     "/lib/".
361    
362     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
363 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
364    
365 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
366 azarah 31 Fix symbols.in not added to dist.
367    
368 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
369 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
370     White space fixes.
371    
372 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
373 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
374 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
375     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
376     for glibc and other libc's that use this. Update libsandbox.c to use these
377     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
378     process unset it.
379    
380 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
381 ferringb 28 killed off _init and _fini in favor of
382     void __attribute__ ((constructor)) init_func and
383     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
384    
385 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
386     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
387     having the hick-ups.
388    
389 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
390     Makefile.am: Fixed compilation.
391    
392 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
393     Gutted the bugger so it stops checking for a c++ and fortran compiler.
394     Do *not* regenerate aclocal.m4 for making a release until a better
395     solution is created.
396    
397 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
398     Removal of more hardcoded paths.
399    
400 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
401     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
402    
403     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
404 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
405     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
406     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
407     To get to a point of testing, automake && autoconf; created requisite files w/
408     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
409     /lib and /usr/lib/portage/bin.
410    
411 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
412     closing out bug #70225, potential overflow of the sandbox_pids_file var.
413    
414     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
415     (think it was at least) allows intermixing of code and data segments. bug #70351
416     should be fixed by this.
417    
418     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
419     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
420    
421     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
422     Seth Robertson that tracked down all adjuct flags for read operations that
423     do not invoke a write operation.
424    
425     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
426     Another fix from jstubbs regarding a free() on a stack variable for the
427     environment -- tracking now prevents extraneous free()'s segfault.
428    
429     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
430     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
431     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
432     Also remove the errno = ESUCCESS settings as documentation points out that
433     a library isn't allowed to do that.
434    
435     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
436     file_security_check() function to check random potential exploits on files
437     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
438     the 'system-crippling' exploits (bug 21923) and catches a few other
439     potential problems.
440    
441     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
442     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
443    
444     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
445     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
446     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
447    
448     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
449     Fix permissions and group of pids file and logs. Permissions should be 0664
450     and group should be 'portage'. Bug #34260.
451    
452     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
453     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
454     to the real execve (in our execve wrapper). Seems that on some arches (sparc
455     among others) do not allow us to tamper with the readonly copy passed to
456     execve, so pass our own copy of the environment. Bug #42290.
457    
458     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
459     Changed tail to head and added a notice about duration of glibc check.
460    
461     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
462     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
463     as there isn't a guarentee that it is dynamic.
464    
465     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
466     If 'file' passed to before_syscall(const char *func, const char *file) is
467     invalid, we should set errno to ENOENT, and not EINVAL. This should
468     close bug #32238.
469    
470     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
471     Fix a bug that occurs mainly on 64bit arch, where the file passed to
472     the functions we wrap, is invalid, and then cause canonicalize to pass
473     garbage to before_syscall(), thanks to great detective work from
474     Andrea Luzzardi <al@sig11.org> (bug #29846).
475    
476     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
477     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
478    
479     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
480     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
481     only checked the destination patch, and not the source, so we could move
482     a protected file to a unprotected directory, and then delete/modify it.
483     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
484    
485     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
486     Added python2.3 to the predict section/variable.
487    
488     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
489     sandbox.h, sandbox_futils.c :
490     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
491     it is not set, it will revert to its old value.
492    
493     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
494     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
495     rather than failing with a violation, bug #29748.
496    
497     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
498     Fix canonicalize() to ignore calls with path = "".
499    
500     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
501     sandbox_futils.c, canonicalize.c :
502     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
503     call handled strings larger than PATH_MAX (bug #21766). It however does not
504     work the same on 2.4 kernels.
505    
506     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
507     do not need the system call. We use the default getcwd() function via a
508     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
509     means the current directory was removed, OR that the the system call for
510     getcwd failed (curious is that it do not fail and return NULL or set
511     errno, but rather just truncate the retured directory - usually from the
512     start), and if so, we use the generic getcwd() function (__egetcwd). Note
513     that we do not use the generic version all the time, as it calls lstat()
514     a great number of times, and performance degrade much.
515    
516     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
517     libsandbox.c :
518     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
519    
520     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
521     create-localdecls :
522     When checking path names of files accessed, we need to canonicalize it, else
523     it may be a symlink in a 'write allowed' directory pointing to a file in a
524     directory we should not have write access to.
525    
526     With something like coreutils-5.0, we have two problems:
527     1) One of the tests checks if getcwd() can return a path longer than
528     PATH_MAX. This test then tries to create a dir which even while
529     created local (mkdir("conftest2")), it ends up being resolved with
530     a name that is much larger than PATH_MAX. The problem now is that
531     canonicalize() have undefined behaviour when the path was too long
532     (returned wrongly truncated paths, etc), and pass the wrong path to
533     before_syscall() (causing the bogus sandbox violations).
534     2) The ecanonicalize() function we used, along with the canonicalize()
535     function did not support longer than PATH_MAX. This is partly a
536     cause for 1), but the error checking (rather lack of it) of calls
537     to erealpath() in canonicalize() was the prime reason for 1).
538    
539     As we do not use this canonicalized name to call the function, we resolve this
540     by fixing canonicalize() to do better error checking, and ecanonicalize() as
541     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
542     While they will resolve paths properly now, and can check if a write/read is
543     allowed, the functions called from the sandboxed environment will still work
544     as expected.
545    
546     This should resolve bug #21766.
547    
548     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
549     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
550     it (bug #16298).
551    
552     Problem is that for some reason locale fopen's locale.alias with mode "rm".
553    
554     -------------------------------------------------------
555     nosferatu root # grep fopen locale.log
556     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
557     nosferatu root #
558     --------------------------------------------------------
559    
560     I checked the source of locale, but it have fopen with mode 'r', so
561     not sure where the "rm" mode comes from. Anyhow, changed the check in
562     before_syscall_open_char() to also see mode "rm" as readonly.
563    
564     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
565    
566     Add glibc-2.3 support.
567    
568     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
569    
570     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
571     operations releated to preload, as well as only try to modify ld.so.preload
572     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
573     not using ld.so.preload. Fix to not write this instance of sandbox's pid
574     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
575    
576     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
577    
578     Changed the LD to CC for hppa.
579    
580     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
581    
582     Killed the previous changes I made.
583    
584     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
585    
586     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
587    
588     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
589    
590     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
591    
592     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
593    
594     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
595     for this fix.
596    
597     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
598    
599     sandbox_futils defined a dirname() function that was masking the same
600     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
601     '/usr/lib/portage/bi/'). Fixed function to return expected results and
602     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
603     11231.
604    
605     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
606    
607     Fix a segfault in libsandbox.c if canonicalize() was called with
608     first parameter = NULL.
609    
610     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
611    
612     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
613     cleanup() for this.
614    
615     Change cleanup() in sandbox.c not to exit with fail status if
616     the pidsfile is missing. We really should still display sandbox
617     violations if they occured.
618    
619     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
620    
621     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
622     the last sandbox running.
623    
624     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
625    
626     Major cleanups to mainly libsandbox.c again.
627    
628     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
629    
630     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
631     parties involved should please contact me so that we can fix it.
632    
633     Add opendir wrapper to libsandbox.c.
634    
635     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
636    
637     Do some more cleanups to ecanonicalize(), as it dropped filenames in
638     rare cases (after my symlink cleanups), and caused glibc to bork.
639     These fixes went into canonicalize.c.
640    
641     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
642    
643     Fix spawn_shell() and main() in sandbox.c to properly return fail
644     status.
645    
646     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
647    
648     The new canonicalize() function in libsandbox.c also resolved symlinks,
649     which caused on cleaning sandbox errors if the symlink pointed to a
650     file in the live root. Ripped out canonicalize() and realpath() from
651     glibc; removed the symlink stuff, and changed them to ecanonicalize()
652     and erealpath().
653    
654     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
655    
656     Ripped out all the wrappers, and implemented those of InstallWatch.
657     Losts of cleanups and bugfixes. Implement a execve that forces
658     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
659     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
660     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
661     parts; it now have an install target.
662    
663     Reformat the whole thing to look somewhat like the reworked sandbox.c
664     and new sandbox.h and sandbox_futils.c from:
665    
666     Brad House <brad@mainstreetsoftworks.com>.
667    
668     Additional Copyrights now due to the InstallWatch code:
669    
670     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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