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Revision 174 - (hide annotations) (download)
Mon Nov 28 10:13:15 2005 UTC (8 years, 8 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 29519 byte(s)
Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
to readonly in sandbox.bashrc.

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

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