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Revision 147 - (hide annotations) (download)
Fri Jul 8 15:49:23 2005 UTC (9 years, 5 months ago) by azarah
File size: 27020 byte(s)
Fix compile error with previous change, and return rather then exit().
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 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
6     libsandbox.c:
7 azarah 146 - Try to cleanup and make error handling/printing consistent.
8     - Remove old logs if present and conflicting with current.
9 azarah 147 - Fix compile error with previous change, and return rather then exit().
10 azarah 145
11 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
12     sandbox.h, sandbox_futils.c:
13     - Fix possible segfault in env init code.
14     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
15     write to /var/log/sandbox/, so in theory do not need all that.
16 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
17 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
18 azarah 142 - Remove unused includes and variables.
19 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
20     OUTSIDE_LIBSANDBOX is not defined.
21 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
22     printing's last line not honouring NOCOLOR.
23 azarah 138
24 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
25     libsandbox.c:
26     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
27     write to it.
28 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
29 azarah 136 - Add check_prefixes() with major cleanup on check_access().
30 azarah 137 - Cleanup init_env_entries() and check_prefixes().
31 azarah 134
32 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
33     sandbox_futils.c, libsandbox.c:
34     Remove unused 'pids file' code.
35    
36 azarah 128 * sandbox-1.2.10 (2005/07/03)
37    
38 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
39     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
40    
41 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
42     General cleanups:
43     - Remove fooling around with exit codes - we error out on presence of a log
44     anyhow.
45 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
46     appropriate there.
47 azarah 123
48 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
49     Cleanup the fail_nametoolong stuff a bit more.
50    
51 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
52 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
53    
54     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
55 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
56     in check_syscall(). Should speed things up a bit (at least for the getcwd()
57     and long path name test it goes down to under a second, and not 10+ seconds
58     like before). Also warn if we skip checking due to the canonicalized path
59     being too long.
60    
61     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
62 azarah 118 More comment/readability cleanups.
63    
64 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
65     sandbox_futils.c, libsandbox.c:
66     Some strncpy/strncat and other cleanups.
67    
68 azarah 115 * sandbox-1.2.9 (2005/06/09)
69    
70 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
71     Move symlink hack down a bit to try and minimize on the amount of lstat()
72     calls we do.
73    
74 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
75     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
76    
77 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
78     Add wrapper for access() function, bug #85413.
79    
80 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
81     Use generic getcwd() implementation from uclibc - should be more portable
82     and looks a bit cleaner.
83    
84 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
85     Make sure our true_* pointers are initialized to NULL, and that we check for
86     all references that they are valid.
87    
88 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
89     Be default we will fail if the path name we try to canonicalize is too long.
90     This however could cause issues with some things (bug #94630 and #21766), so
91     if fail_nametoolong == 0, canonicalize() will return a null length string and
92     do not fail.
93    
94 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
95     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
96     make sure we re-export the new TMPDIR environment variable.
97    
98 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
99     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
100     by Marcus D. Hanwell <cryos@gentoo.org>.
101    
102 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
103     Add /dev/console to write list, bug #38588.
104    
105 azarah 102 * sandbox-1.2.8 (2005/05/13)
106    
107 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
108 azarah 101 sandbox.h, sandbox_futils.c:
109     General cleanups.
110    
111     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
112 azarah 100 sandbox.h:
113     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
114    
115     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
116 azarah 99 sandbox.h, sandbox_futils.c:
117     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
118     to use TMPDIR if present in environment.
119    
120 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
121     Remove sandbox_log_file from main() as its no longer used.
122    
123 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
124     sandbox_futils.c:
125     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
126     if already exported when sandbox started). Fix get_sandbox_log() and new
127     get_sandbox_debug_log() to not use already exported environment variables if
128     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
129     SB_PATH_MAX fixes.
130    
131 azarah 94 * sandbox-1.2.7 (2005/05/12)
132    
133 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
134     sandbox_futils.c:
135     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
136    
137 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
138     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
139     with '(null)' in it if we did not call sandbox with absolute path.
140    
141 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
142 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
143     for the child.
144    
145     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
146 azarah 90 Remove global preload_adaptable as it is no longer used.
147    
148     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
149 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
150     to try and avoid issues like bug #91541 that causes sandbox to crash if
151     we set LD_PRELOAD sandbox side already.
152    
153 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
154 azarah 88 Move print_sandbox_log() up to make things neater.
155    
156     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
157 azarah 87 Remove load_preload_libs(), as its not used anymore.
158    
159 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
160 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
161    
162     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
163 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
164    
165     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
166 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
167    
168 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
169     Fix typo in code that checks if we got valid group information, causing a
170     segmentation fault, bug #91637.
171    
172 azarah 79 * sandbox-1.2.6 (2005/05/10)
173    
174 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
175     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
176     for some odd reason, bug #91541.
177    
178 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
179     Fix typo (sizeof -> strlen).
180    
181 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
182     rewrote the sbcontext caching code so it accounts for env changes since lib
183     initialization.
184    
185 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
186     We create libctest.c via configure, so no need to keep it around. Do some
187     cleanup related to libctest.c and libctest during configure.
188    
189 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
190     Add rename support of symlinks pointing to protected files/directories.
191    
192 azarah 72 * sandbox-1.2.5 (2005/05/04)
193    
194 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
195     sandbox.bashrc:
196     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
197     already set, init of the env vars fails for some reason, so do this later on,
198     and do not warn (bug #91431).
199    
200 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
201     sandbox.bashrc:
202     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
203    
204 azarah 68 * sandbox-1.2.4 (2005/05/03)
205    
206 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
207     Do not init the env entries with each call, as it creates too many calls to
208 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
209 azarah 66
210 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
211     Add /dev/pty to default write list. Noticed by Morfic.
212    
213 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
214     sandbox.h:
215     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
216     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
217    
218 azarah 59 * sandbox-1.2.3 (2005/04/29)
219    
220 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
221     Do not check for (*&#$(* CXX or F77.
222    
223 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
224     Do not append '/' to pathname in filter_path() if it already ends with it.
225    
226 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
227     With az's help, clean up autotools to work with cross-compiling.
228    
229 azarah 59 * sandbox-1.2.2 (2005/04/28)
230 azarah 48
231 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
232     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
233     have issues; bug #90592.
234    
235 azarah 59 * sandbox-1.2.1 (2005/04/23)
236 azarah 44
237 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
238     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
239     Make sure all functions used in libsandbox.c is declared static. Define
240     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
241     linking with its object. Hopefully this will fix bug #90153.
242    
243 azarah 59 * sandbox-1.2 (2005/04/23)
244 azarah 46
245 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
246     Allow lchown a symlink in write-allowed path pointing to write-denied
247     target.
248    
249 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
250     Also show resolved symlink names in the log.
251    
252 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
253     Seems -nostdlib was the problem with the constructor/destructor - remove it
254     from Makefile.am, and change the constructor/destructor names again.
255    
256 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
257     Also rename the _init() and _fini() declarations.
258    
259 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
260     Fixup the constructor/destructor function names again (they should be _init()
261     and _fini() it seems, and not being called caused sandbox_lib_path to be
262     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
263     Add both the path in given SANDBOX_x variable, as well as its symlink
264     resolved path in init_env_entries(). Modify filter_path() to be able to
265     resolve paths without resolving symlinks, as well as to be able to resolve
266     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
267     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
268     for bug #31019 cause access violations if we try to remove a symlink that is
269     not in protected path, but points to a protected path. Fix a memory leak in
270     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
271     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
272     (pid_string was uninitialized). General syntax cleanups.
273    
274 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
275     infamous "pids file is not a regular file" w/out newline bug.
276    
277 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
278     Correct libc_version path detection, since it was screwing up if libdir !=
279     "/lib/".
280    
281     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
282 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
283    
284 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
285 azarah 31 Fix symbols.in not added to dist.
286    
287 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
288 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
289     White space fixes.
290    
291 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
292 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
293 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
294     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
295     for glibc and other libc's that use this. Update libsandbox.c to use these
296     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
297     process unset it.
298    
299 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
300 ferringb 28 killed off _init and _fini in favor of
301     void __attribute__ ((constructor)) init_func and
302     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
303    
304 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
305     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
306     having the hick-ups.
307    
308 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
309     Makefile.am: Fixed compilation.
310    
311 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
312     Gutted the bugger so it stops checking for a c++ and fortran compiler.
313     Do *not* regenerate aclocal.m4 for making a release until a better
314     solution is created.
315    
316 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
317     Removal of more hardcoded paths.
318    
319 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
320     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
321    
322     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
323 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
324     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
325     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
326     To get to a point of testing, automake && autoconf; created requisite files w/
327     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
328     /lib and /usr/lib/portage/bin.
329    
330 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
331     closing out bug #70225, potential overflow of the sandbox_pids_file var.
332    
333     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
334     (think it was at least) allows intermixing of code and data segments. bug #70351
335     should be fixed by this.
336    
337     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
338     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
339    
340     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
341     Seth Robertson that tracked down all adjuct flags for read operations that
342     do not invoke a write operation.
343    
344     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
345     Another fix from jstubbs regarding a free() on a stack variable for the
346     environment -- tracking now prevents extraneous free()'s segfault.
347    
348     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
349     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
350     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
351     Also remove the errno = ESUCCESS settings as documentation points out that
352     a library isn't allowed to do that.
353    
354     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
355     file_security_check() function to check random potential exploits on files
356     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
357     the 'system-crippling' exploits (bug 21923) and catches a few other
358     potential problems.
359    
360     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
361     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
362    
363     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
364     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
365     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
366    
367     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
368     Fix permissions and group of pids file and logs. Permissions should be 0664
369     and group should be 'portage'. Bug #34260.
370    
371     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
372     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
373     to the real execve (in our execve wrapper). Seems that on some arches (sparc
374     among others) do not allow us to tamper with the readonly copy passed to
375     execve, so pass our own copy of the environment. Bug #42290.
376    
377     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
378     Changed tail to head and added a notice about duration of glibc check.
379    
380     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
381     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
382     as there isn't a guarentee that it is dynamic.
383    
384     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
385     If 'file' passed to before_syscall(const char *func, const char *file) is
386     invalid, we should set errno to ENOENT, and not EINVAL. This should
387     close bug #32238.
388    
389     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
390     Fix a bug that occurs mainly on 64bit arch, where the file passed to
391     the functions we wrap, is invalid, and then cause canonicalize to pass
392     garbage to before_syscall(), thanks to great detective work from
393     Andrea Luzzardi <al@sig11.org> (bug #29846).
394    
395     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
396     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
397    
398     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
399     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
400     only checked the destination patch, and not the source, so we could move
401     a protected file to a unprotected directory, and then delete/modify it.
402     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
403    
404     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
405     Added python2.3 to the predict section/variable.
406    
407     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
408     sandbox.h, sandbox_futils.c :
409     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
410     it is not set, it will revert to its old value.
411    
412     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
413     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
414     rather than failing with a violation, bug #29748.
415    
416     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
417     Fix canonicalize() to ignore calls with path = "".
418    
419     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
420     sandbox_futils.c, canonicalize.c :
421     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
422     call handled strings larger than PATH_MAX (bug #21766). It however does not
423     work the same on 2.4 kernels.
424    
425     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
426     do not need the system call. We use the default getcwd() function via a
427     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
428     means the current directory was removed, OR that the the system call for
429     getcwd failed (curious is that it do not fail and return NULL or set
430     errno, but rather just truncate the retured directory - usually from the
431     start), and if so, we use the generic getcwd() function (__egetcwd). Note
432     that we do not use the generic version all the time, as it calls lstat()
433     a great number of times, and performance degrade much.
434    
435     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
436     libsandbox.c :
437     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
438    
439     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
440     create-localdecls :
441     When checking path names of files accessed, we need to canonicalize it, else
442     it may be a symlink in a 'write allowed' directory pointing to a file in a
443     directory we should not have write access to.
444    
445     With something like coreutils-5.0, we have two problems:
446     1) One of the tests checks if getcwd() can return a path longer than
447     PATH_MAX. This test then tries to create a dir which even while
448     created local (mkdir("conftest2")), it ends up being resolved with
449     a name that is much larger than PATH_MAX. The problem now is that
450     canonicalize() have undefined behaviour when the path was too long
451     (returned wrongly truncated paths, etc), and pass the wrong path to
452     before_syscall() (causing the bogus sandbox violations).
453     2) The ecanonicalize() function we used, along with the canonicalize()
454     function did not support longer than PATH_MAX. This is partly a
455     cause for 1), but the error checking (rather lack of it) of calls
456     to erealpath() in canonicalize() was the prime reason for 1).
457    
458     As we do not use this canonicalized name to call the function, we resolve this
459     by fixing canonicalize() to do better error checking, and ecanonicalize() as
460     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
461     While they will resolve paths properly now, and can check if a write/read is
462     allowed, the functions called from the sandboxed environment will still work
463     as expected.
464    
465     This should resolve bug #21766.
466    
467     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
468     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
469     it (bug #16298).
470    
471     Problem is that for some reason locale fopen's locale.alias with mode "rm".
472    
473     -------------------------------------------------------
474     nosferatu root # grep fopen locale.log
475     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
476     nosferatu root #
477     --------------------------------------------------------
478    
479     I checked the source of locale, but it have fopen with mode 'r', so
480     not sure where the "rm" mode comes from. Anyhow, changed the check in
481     before_syscall_open_char() to also see mode "rm" as readonly.
482    
483     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
484    
485     Add glibc-2.3 support.
486    
487     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
488    
489     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
490     operations releated to preload, as well as only try to modify ld.so.preload
491     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
492     not using ld.so.preload. Fix to not write this instance of sandbox's pid
493     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
494    
495     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
496    
497     Changed the LD to CC for hppa.
498    
499     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
500    
501     Killed the previous changes I made.
502    
503     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
504    
505     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
506    
507     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
508    
509     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
510    
511     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
512    
513     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
514     for this fix.
515    
516     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
517    
518     sandbox_futils defined a dirname() function that was masking the same
519     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
520     '/usr/lib/portage/bi/'). Fixed function to return expected results and
521     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
522     11231.
523    
524     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
525    
526     Fix a segfault in libsandbox.c if canonicalize() was called with
527     first parameter = NULL.
528    
529     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
530    
531     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
532     cleanup() for this.
533    
534     Change cleanup() in sandbox.c not to exit with fail status if
535     the pidsfile is missing. We really should still display sandbox
536     violations if they occured.
537    
538     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
539    
540     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
541     the last sandbox running.
542    
543     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
544    
545     Major cleanups to mainly libsandbox.c again.
546    
547     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
548    
549     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
550     parties involved should please contact me so that we can fix it.
551    
552     Add opendir wrapper to libsandbox.c.
553    
554     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
555    
556     Do some more cleanups to ecanonicalize(), as it dropped filenames in
557     rare cases (after my symlink cleanups), and caused glibc to bork.
558     These fixes went into canonicalize.c.
559    
560     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
561    
562     Fix spawn_shell() and main() in sandbox.c to properly return fail
563     status.
564    
565     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
566    
567     The new canonicalize() function in libsandbox.c also resolved symlinks,
568     which caused on cleaning sandbox errors if the symlink pointed to a
569     file in the live root. Ripped out canonicalize() and realpath() from
570     glibc; removed the symlink stuff, and changed them to ecanonicalize()
571     and erealpath().
572    
573     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
574    
575     Ripped out all the wrappers, and implemented those of InstallWatch.
576     Losts of cleanups and bugfixes. Implement a execve that forces
577     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
578     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
579     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
580     parts; it now have an install target.
581    
582     Reformat the whole thing to look somewhat like the reworked sandbox.c
583     and new sandbox.h and sandbox_futils.c from:
584    
585     Brad House <brad@mainstreetsoftworks.com>.
586    
587     Additional Copyrights now due to the InstallWatch code:
588    
589     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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