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Revision 156 - (hide annotations) (download)
Fri Aug 5 13:33:54 2005 UTC (9 years ago) by azarah
Original Path: trunk/ChangeLog
File size: 28080 byte(s)
Do not give an access violation if the access() system call do not have
write/read access - it does not actually modify, so we only need to return
not being able to write/read.  Noted by Andres Loeh <kosmikus@gentoo.org>,
bug #101433.

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

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