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Revision 120 - (hide annotations) (download)
Sat Jun 11 10:04:07 2005 UTC (9 years, 5 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 24903 byte(s)
Remove hopefully the last ld.so.preload bits we do not use anymore.
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 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
6 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
7    
8     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
9 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
10     in check_syscall(). Should speed things up a bit (at least for the getcwd()
11     and long path name test it goes down to under a second, and not 10+ seconds
12     like before). Also warn if we skip checking due to the canonicalized path
13     being too long.
14    
15     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
16 azarah 118 More comment/readability cleanups.
17    
18 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
19     sandbox_futils.c, libsandbox.c:
20     Some strncpy/strncat and other cleanups.
21    
22 azarah 115 * sandbox-1.2.9 (2005/06/09)
23    
24 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
25     Move symlink hack down a bit to try and minimize on the amount of lstat()
26     calls we do.
27    
28 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
29     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
30    
31 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
32     Add wrapper for access() function, bug #85413.
33    
34 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
35     Use generic getcwd() implementation from uclibc - should be more portable
36     and looks a bit cleaner.
37    
38 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
39     Make sure our true_* pointers are initialized to NULL, and that we check for
40     all references that they are valid.
41    
42 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
43     Be default we will fail if the path name we try to canonicalize is too long.
44     This however could cause issues with some things (bug #94630 and #21766), so
45     if fail_nametoolong == 0, canonicalize() will return a null length string and
46     do not fail.
47    
48 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
49     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
50     make sure we re-export the new TMPDIR environment variable.
51    
52 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
53     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
54     by Marcus D. Hanwell <cryos@gentoo.org>.
55    
56 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
57     Add /dev/console to write list, bug #38588.
58    
59 azarah 102 * sandbox-1.2.8 (2005/05/13)
60    
61 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
62 azarah 101 sandbox.h, sandbox_futils.c:
63     General cleanups.
64    
65     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
66 azarah 100 sandbox.h:
67     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
68    
69     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
70 azarah 99 sandbox.h, sandbox_futils.c:
71     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
72     to use TMPDIR if present in environment.
73    
74 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
75     Remove sandbox_log_file from main() as its no longer used.
76    
77 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
78     sandbox_futils.c:
79     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
80     if already exported when sandbox started). Fix get_sandbox_log() and new
81     get_sandbox_debug_log() to not use already exported environment variables if
82     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
83     SB_PATH_MAX fixes.
84    
85 azarah 94 * sandbox-1.2.7 (2005/05/12)
86    
87 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
88     sandbox_futils.c:
89     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
90    
91 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
92     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
93     with '(null)' in it if we did not call sandbox with absolute path.
94    
95 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
96 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
97     for the child.
98    
99     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
100 azarah 90 Remove global preload_adaptable as it is no longer used.
101    
102     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
103 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
104     to try and avoid issues like bug #91541 that causes sandbox to crash if
105     we set LD_PRELOAD sandbox side already.
106    
107 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
108 azarah 88 Move print_sandbox_log() up to make things neater.
109    
110     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
111 azarah 87 Remove load_preload_libs(), as its not used anymore.
112    
113 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
114 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
115    
116     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
117 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
118    
119     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
120 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
121    
122 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
123     Fix typo in code that checks if we got valid group information, causing a
124     segmentation fault, bug #91637.
125    
126 azarah 79 * sandbox-1.2.6 (2005/05/10)
127    
128 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
129     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
130     for some odd reason, bug #91541.
131    
132 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
133     Fix typo (sizeof -> strlen).
134    
135 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
136     rewrote the sbcontext caching code so it accounts for env changes since lib
137     initialization.
138    
139 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
140     We create libctest.c via configure, so no need to keep it around. Do some
141     cleanup related to libctest.c and libctest during configure.
142    
143 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
144     Add rename support of symlinks pointing to protected files/directories.
145    
146 azarah 72 * sandbox-1.2.5 (2005/05/04)
147    
148 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
149     sandbox.bashrc:
150     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
151     already set, init of the env vars fails for some reason, so do this later on,
152     and do not warn (bug #91431).
153    
154 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
155     sandbox.bashrc:
156     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
157    
158 azarah 68 * sandbox-1.2.4 (2005/05/03)
159    
160 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
161     Do not init the env entries with each call, as it creates too many calls to
162 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
163 azarah 66
164 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
165     Add /dev/pty to default write list. Noticed by Morfic.
166    
167 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
168     sandbox.h:
169     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
170     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
171    
172 azarah 59 * sandbox-1.2.3 (2005/04/29)
173    
174 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
175     Do not check for (*&#$(* CXX or F77.
176    
177 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
178     Do not append '/' to pathname in filter_path() if it already ends with it.
179    
180 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
181     With az's help, clean up autotools to work with cross-compiling.
182    
183 azarah 59 * sandbox-1.2.2 (2005/04/28)
184 azarah 48
185 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
186     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
187     have issues; bug #90592.
188    
189 azarah 59 * sandbox-1.2.1 (2005/04/23)
190 azarah 44
191 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
192     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
193     Make sure all functions used in libsandbox.c is declared static. Define
194     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
195     linking with its object. Hopefully this will fix bug #90153.
196    
197 azarah 59 * sandbox-1.2 (2005/04/23)
198 azarah 46
199 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
200     Allow lchown a symlink in write-allowed path pointing to write-denied
201     target.
202    
203 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
204     Also show resolved symlink names in the log.
205    
206 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
207     Seems -nostdlib was the problem with the constructor/destructor - remove it
208     from Makefile.am, and change the constructor/destructor names again.
209    
210 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
211     Also rename the _init() and _fini() declarations.
212    
213 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
214     Fixup the constructor/destructor function names again (they should be _init()
215     and _fini() it seems, and not being called caused sandbox_lib_path to be
216     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
217     Add both the path in given SANDBOX_x variable, as well as its symlink
218     resolved path in init_env_entries(). Modify filter_path() to be able to
219     resolve paths without resolving symlinks, as well as to be able to resolve
220     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
221     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
222     for bug #31019 cause access violations if we try to remove a symlink that is
223     not in protected path, but points to a protected path. Fix a memory leak in
224     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
225     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
226     (pid_string was uninitialized). General syntax cleanups.
227    
228 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
229     infamous "pids file is not a regular file" w/out newline bug.
230    
231 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
232     Correct libc_version path detection, since it was screwing up if libdir !=
233     "/lib/".
234    
235     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
236 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
237    
238 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
239 azarah 31 Fix symbols.in not added to dist.
240    
241 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
242 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
243     White space fixes.
244    
245 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
246 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
247 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
248     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
249     for glibc and other libc's that use this. Update libsandbox.c to use these
250     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
251     process unset it.
252    
253 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
254 ferringb 28 killed off _init and _fini in favor of
255     void __attribute__ ((constructor)) init_func and
256     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
257    
258 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
259     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
260     having the hick-ups.
261    
262 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
263     Makefile.am: Fixed compilation.
264    
265 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
266     Gutted the bugger so it stops checking for a c++ and fortran compiler.
267     Do *not* regenerate aclocal.m4 for making a release until a better
268     solution is created.
269    
270 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
271     Removal of more hardcoded paths.
272    
273 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
274     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
275    
276     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
277 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
278     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
279     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
280     To get to a point of testing, automake && autoconf; created requisite files w/
281     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
282     /lib and /usr/lib/portage/bin.
283    
284 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
285     closing out bug #70225, potential overflow of the sandbox_pids_file var.
286    
287     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
288     (think it was at least) allows intermixing of code and data segments. bug #70351
289     should be fixed by this.
290    
291     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
292     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
293    
294     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
295     Seth Robertson that tracked down all adjuct flags for read operations that
296     do not invoke a write operation.
297    
298     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
299     Another fix from jstubbs regarding a free() on a stack variable for the
300     environment -- tracking now prevents extraneous free()'s segfault.
301    
302     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
303     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
304     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
305     Also remove the errno = ESUCCESS settings as documentation points out that
306     a library isn't allowed to do that.
307    
308     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
309     file_security_check() function to check random potential exploits on files
310     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
311     the 'system-crippling' exploits (bug 21923) and catches a few other
312     potential problems.
313    
314     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
315     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
316    
317     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
318     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
319     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
320    
321     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
322     Fix permissions and group of pids file and logs. Permissions should be 0664
323     and group should be 'portage'. Bug #34260.
324    
325     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
326     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
327     to the real execve (in our execve wrapper). Seems that on some arches (sparc
328     among others) do not allow us to tamper with the readonly copy passed to
329     execve, so pass our own copy of the environment. Bug #42290.
330    
331     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
332     Changed tail to head and added a notice about duration of glibc check.
333    
334     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
335     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
336     as there isn't a guarentee that it is dynamic.
337    
338     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
339     If 'file' passed to before_syscall(const char *func, const char *file) is
340     invalid, we should set errno to ENOENT, and not EINVAL. This should
341     close bug #32238.
342    
343     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
344     Fix a bug that occurs mainly on 64bit arch, where the file passed to
345     the functions we wrap, is invalid, and then cause canonicalize to pass
346     garbage to before_syscall(), thanks to great detective work from
347     Andrea Luzzardi <al@sig11.org> (bug #29846).
348    
349     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
350     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
351    
352     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
353     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
354     only checked the destination patch, and not the source, so we could move
355     a protected file to a unprotected directory, and then delete/modify it.
356     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
357    
358     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
359     Added python2.3 to the predict section/variable.
360    
361     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
362     sandbox.h, sandbox_futils.c :
363     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
364     it is not set, it will revert to its old value.
365    
366     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
367     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
368     rather than failing with a violation, bug #29748.
369    
370     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
371     Fix canonicalize() to ignore calls with path = "".
372    
373     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
374     sandbox_futils.c, canonicalize.c :
375     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
376     call handled strings larger than PATH_MAX (bug #21766). It however does not
377     work the same on 2.4 kernels.
378    
379     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
380     do not need the system call. We use the default getcwd() function via a
381     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
382     means the current directory was removed, OR that the the system call for
383     getcwd failed (curious is that it do not fail and return NULL or set
384     errno, but rather just truncate the retured directory - usually from the
385     start), and if so, we use the generic getcwd() function (__egetcwd). Note
386     that we do not use the generic version all the time, as it calls lstat()
387     a great number of times, and performance degrade much.
388    
389     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
390     libsandbox.c :
391     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
392    
393     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
394     create-localdecls :
395     When checking path names of files accessed, we need to canonicalize it, else
396     it may be a symlink in a 'write allowed' directory pointing to a file in a
397     directory we should not have write access to.
398    
399     With something like coreutils-5.0, we have two problems:
400     1) One of the tests checks if getcwd() can return a path longer than
401     PATH_MAX. This test then tries to create a dir which even while
402     created local (mkdir("conftest2")), it ends up being resolved with
403     a name that is much larger than PATH_MAX. The problem now is that
404     canonicalize() have undefined behaviour when the path was too long
405     (returned wrongly truncated paths, etc), and pass the wrong path to
406     before_syscall() (causing the bogus sandbox violations).
407     2) The ecanonicalize() function we used, along with the canonicalize()
408     function did not support longer than PATH_MAX. This is partly a
409     cause for 1), but the error checking (rather lack of it) of calls
410     to erealpath() in canonicalize() was the prime reason for 1).
411    
412     As we do not use this canonicalized name to call the function, we resolve this
413     by fixing canonicalize() to do better error checking, and ecanonicalize() as
414     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
415     While they will resolve paths properly now, and can check if a write/read is
416     allowed, the functions called from the sandboxed environment will still work
417     as expected.
418    
419     This should resolve bug #21766.
420    
421     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
422     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
423     it (bug #16298).
424    
425     Problem is that for some reason locale fopen's locale.alias with mode "rm".
426    
427     -------------------------------------------------------
428     nosferatu root # grep fopen locale.log
429     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
430     nosferatu root #
431     --------------------------------------------------------
432    
433     I checked the source of locale, but it have fopen with mode 'r', so
434     not sure where the "rm" mode comes from. Anyhow, changed the check in
435     before_syscall_open_char() to also see mode "rm" as readonly.
436    
437     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
438    
439     Add glibc-2.3 support.
440    
441     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
442    
443     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
444     operations releated to preload, as well as only try to modify ld.so.preload
445     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
446     not using ld.so.preload. Fix to not write this instance of sandbox's pid
447     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
448    
449     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
450    
451     Changed the LD to CC for hppa.
452    
453     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
454    
455     Killed the previous changes I made.
456    
457     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
458    
459     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
460    
461     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
462    
463     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
464    
465     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
466    
467     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
468     for this fix.
469    
470     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
471    
472     sandbox_futils defined a dirname() function that was masking the same
473     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
474     '/usr/lib/portage/bi/'). Fixed function to return expected results and
475     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
476     11231.
477    
478     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
479    
480     Fix a segfault in libsandbox.c if canonicalize() was called with
481     first parameter = NULL.
482    
483     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
484    
485     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
486     cleanup() for this.
487    
488     Change cleanup() in sandbox.c not to exit with fail status if
489     the pidsfile is missing. We really should still display sandbox
490     violations if they occured.
491    
492     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
493    
494     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
495     the last sandbox running.
496    
497     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
498    
499     Major cleanups to mainly libsandbox.c again.
500    
501     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
502    
503     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
504     parties involved should please contact me so that we can fix it.
505    
506     Add opendir wrapper to libsandbox.c.
507    
508     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
509    
510     Do some more cleanups to ecanonicalize(), as it dropped filenames in
511     rare cases (after my symlink cleanups), and caused glibc to bork.
512     These fixes went into canonicalize.c.
513    
514     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
515    
516     Fix spawn_shell() and main() in sandbox.c to properly return fail
517     status.
518    
519     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
520    
521     The new canonicalize() function in libsandbox.c also resolved symlinks,
522     which caused on cleaning sandbox errors if the symlink pointed to a
523     file in the live root. Ripped out canonicalize() and realpath() from
524     glibc; removed the symlink stuff, and changed them to ecanonicalize()
525     and erealpath().
526    
527     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
528    
529     Ripped out all the wrappers, and implemented those of InstallWatch.
530     Losts of cleanups and bugfixes. Implement a execve that forces
531     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
532     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
533     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
534     parts; it now have an install target.
535    
536     Reformat the whole thing to look somewhat like the reworked sandbox.c
537     and new sandbox.h and sandbox_futils.c from:
538    
539     Brad House <brad@mainstreetsoftworks.com>.
540    
541     Additional Copyrights now due to the InstallWatch code:
542    
543     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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