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Revision 158 - (hide annotations) (download)
Fri Aug 5 13:58:53 2005 UTC (9 years, 1 month ago) by azarah
File size: 28319 byte(s)
Remove the tmp_dir variable - we do not need it.
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 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
13     and make the current directory the work directory. Also rename the variable
14     portage_tmp_dir to work_dir.
15    
16 azarah 158 Remove the tmp_dir variable - we do not need it.
17    
18 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
19    
20     Still do normal log if debugging is requested.
21    
22 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
23     to only enable if equal to "1" or "yes".
24    
25 azarah 155 Add /dev/tts to write permit, bug #42809.
26    
27 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
28     sandbox_futils.c:
29    
30     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
31     in libsandbox .. bug #100309.
32    
33 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
34    
35     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
36    
37 azarah 149 * sandbox-1.2.11 (2005/07/14)
38    
39 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
40     Fix getcwd, bug #98419.
41    
42 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
43     libsandbox.c:
44 azarah 146 - Try to cleanup and make error handling/printing consistent.
45     - Remove old logs if present and conflicting with current.
46 azarah 147 - Fix compile error with previous change, and return rather then exit().
47 azarah 145
48 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
49     sandbox.h, sandbox_futils.c:
50     - Fix possible segfault in env init code.
51     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
52     write to /var/log/sandbox/, so in theory do not need all that.
53 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
54 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
55 azarah 142 - Remove unused includes and variables.
56 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
57     OUTSIDE_LIBSANDBOX is not defined.
58 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
59     printing's last line not honouring NOCOLOR.
60 azarah 138
61 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
62     libsandbox.c:
63     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
64     write to it.
65 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
66 azarah 136 - Add check_prefixes() with major cleanup on check_access().
67 azarah 137 - Cleanup init_env_entries() and check_prefixes().
68 azarah 134
69 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
70     sandbox_futils.c, libsandbox.c:
71     Remove unused 'pids file' code.
72    
73 azarah 128 * sandbox-1.2.10 (2005/07/03)
74    
75 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
76     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
77    
78 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
79     General cleanups:
80     - Remove fooling around with exit codes - we error out on presence of a log
81     anyhow.
82 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
83     appropriate there.
84 azarah 123
85 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
86     Cleanup the fail_nametoolong stuff a bit more.
87    
88 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
89 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
90    
91     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
92 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
93     in check_syscall(). Should speed things up a bit (at least for the getcwd()
94     and long path name test it goes down to under a second, and not 10+ seconds
95     like before). Also warn if we skip checking due to the canonicalized path
96     being too long.
97    
98     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
99 azarah 118 More comment/readability cleanups.
100    
101 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
102     sandbox_futils.c, libsandbox.c:
103     Some strncpy/strncat and other cleanups.
104    
105 azarah 115 * sandbox-1.2.9 (2005/06/09)
106    
107 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
108     Move symlink hack down a bit to try and minimize on the amount of lstat()
109     calls we do.
110    
111 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
112     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
113    
114 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
115     Add wrapper for access() function, bug #85413.
116    
117 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
118     Use generic getcwd() implementation from uclibc - should be more portable
119     and looks a bit cleaner.
120    
121 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
122     Make sure our true_* pointers are initialized to NULL, and that we check for
123     all references that they are valid.
124    
125 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
126     Be default we will fail if the path name we try to canonicalize is too long.
127     This however could cause issues with some things (bug #94630 and #21766), so
128     if fail_nametoolong == 0, canonicalize() will return a null length string and
129     do not fail.
130    
131 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
132     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
133     make sure we re-export the new TMPDIR environment variable.
134    
135 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
136     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
137     by Marcus D. Hanwell <cryos@gentoo.org>.
138    
139 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
140     Add /dev/console to write list, bug #38588.
141    
142 azarah 102 * sandbox-1.2.8 (2005/05/13)
143    
144 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
145 azarah 101 sandbox.h, sandbox_futils.c:
146     General cleanups.
147    
148     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
149 azarah 100 sandbox.h:
150     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
151    
152     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
153 azarah 99 sandbox.h, sandbox_futils.c:
154     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
155     to use TMPDIR if present in environment.
156    
157 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
158     Remove sandbox_log_file from main() as its no longer used.
159    
160 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
161     sandbox_futils.c:
162     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
163     if already exported when sandbox started). Fix get_sandbox_log() and new
164     get_sandbox_debug_log() to not use already exported environment variables if
165     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
166     SB_PATH_MAX fixes.
167    
168 azarah 94 * sandbox-1.2.7 (2005/05/12)
169    
170 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
171     sandbox_futils.c:
172     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
173    
174 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
175     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
176     with '(null)' in it if we did not call sandbox with absolute path.
177    
178 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
179 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
180     for the child.
181    
182     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
183 azarah 90 Remove global preload_adaptable as it is no longer used.
184    
185     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
186 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
187     to try and avoid issues like bug #91541 that causes sandbox to crash if
188     we set LD_PRELOAD sandbox side already.
189    
190 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
191 azarah 88 Move print_sandbox_log() up to make things neater.
192    
193     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
194 azarah 87 Remove load_preload_libs(), as its not used anymore.
195    
196 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
197 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
198    
199     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
200 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
201    
202     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
203 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
204    
205 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
206     Fix typo in code that checks if we got valid group information, causing a
207     segmentation fault, bug #91637.
208    
209 azarah 79 * sandbox-1.2.6 (2005/05/10)
210    
211 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
212     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
213     for some odd reason, bug #91541.
214    
215 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
216     Fix typo (sizeof -> strlen).
217    
218 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
219     rewrote the sbcontext caching code so it accounts for env changes since lib
220     initialization.
221    
222 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
223     We create libctest.c via configure, so no need to keep it around. Do some
224     cleanup related to libctest.c and libctest during configure.
225    
226 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
227     Add rename support of symlinks pointing to protected files/directories.
228    
229 azarah 72 * sandbox-1.2.5 (2005/05/04)
230    
231 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
232     sandbox.bashrc:
233     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
234     already set, init of the env vars fails for some reason, so do this later on,
235     and do not warn (bug #91431).
236    
237 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
238     sandbox.bashrc:
239     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
240    
241 azarah 68 * sandbox-1.2.4 (2005/05/03)
242    
243 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
244     Do not init the env entries with each call, as it creates too many calls to
245 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
246 azarah 66
247 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
248     Add /dev/pty to default write list. Noticed by Morfic.
249    
250 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
251     sandbox.h:
252     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
253     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
254    
255 azarah 59 * sandbox-1.2.3 (2005/04/29)
256    
257 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
258     Do not check for (*&#$(* CXX or F77.
259    
260 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
261     Do not append '/' to pathname in filter_path() if it already ends with it.
262    
263 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
264     With az's help, clean up autotools to work with cross-compiling.
265    
266 azarah 59 * sandbox-1.2.2 (2005/04/28)
267 azarah 48
268 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
269     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
270     have issues; bug #90592.
271    
272 azarah 59 * sandbox-1.2.1 (2005/04/23)
273 azarah 44
274 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
275     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
276     Make sure all functions used in libsandbox.c is declared static. Define
277     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
278     linking with its object. Hopefully this will fix bug #90153.
279    
280 azarah 59 * sandbox-1.2 (2005/04/23)
281 azarah 46
282 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
283     Allow lchown a symlink in write-allowed path pointing to write-denied
284     target.
285    
286 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
287     Also show resolved symlink names in the log.
288    
289 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
290     Seems -nostdlib was the problem with the constructor/destructor - remove it
291     from Makefile.am, and change the constructor/destructor names again.
292    
293 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
294     Also rename the _init() and _fini() declarations.
295    
296 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
297     Fixup the constructor/destructor function names again (they should be _init()
298     and _fini() it seems, and not being called caused sandbox_lib_path to be
299     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
300     Add both the path in given SANDBOX_x variable, as well as its symlink
301     resolved path in init_env_entries(). Modify filter_path() to be able to
302     resolve paths without resolving symlinks, as well as to be able to resolve
303     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
304     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
305     for bug #31019 cause access violations if we try to remove a symlink that is
306     not in protected path, but points to a protected path. Fix a memory leak in
307     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
308     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
309     (pid_string was uninitialized). General syntax cleanups.
310    
311 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
312     infamous "pids file is not a regular file" w/out newline bug.
313    
314 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
315     Correct libc_version path detection, since it was screwing up if libdir !=
316     "/lib/".
317    
318     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
319 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
320    
321 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
322 azarah 31 Fix symbols.in not added to dist.
323    
324 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
325 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
326     White space fixes.
327    
328 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
329 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
330 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
331     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
332     for glibc and other libc's that use this. Update libsandbox.c to use these
333     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
334     process unset it.
335    
336 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
337 ferringb 28 killed off _init and _fini in favor of
338     void __attribute__ ((constructor)) init_func and
339     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
340    
341 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
342     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
343     having the hick-ups.
344    
345 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
346     Makefile.am: Fixed compilation.
347    
348 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
349     Gutted the bugger so it stops checking for a c++ and fortran compiler.
350     Do *not* regenerate aclocal.m4 for making a release until a better
351     solution is created.
352    
353 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
354     Removal of more hardcoded paths.
355    
356 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
357     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
358    
359     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
360 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
361     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
362     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
363     To get to a point of testing, automake && autoconf; created requisite files w/
364     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
365     /lib and /usr/lib/portage/bin.
366    
367 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
368     closing out bug #70225, potential overflow of the sandbox_pids_file var.
369    
370     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
371     (think it was at least) allows intermixing of code and data segments. bug #70351
372     should be fixed by this.
373    
374     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
375     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
376    
377     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
378     Seth Robertson that tracked down all adjuct flags for read operations that
379     do not invoke a write operation.
380    
381     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
382     Another fix from jstubbs regarding a free() on a stack variable for the
383     environment -- tracking now prevents extraneous free()'s segfault.
384    
385     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
386     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
387     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
388     Also remove the errno = ESUCCESS settings as documentation points out that
389     a library isn't allowed to do that.
390    
391     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
392     file_security_check() function to check random potential exploits on files
393     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
394     the 'system-crippling' exploits (bug 21923) and catches a few other
395     potential problems.
396    
397     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
398     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
399    
400     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
401     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
402     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
403    
404     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
405     Fix permissions and group of pids file and logs. Permissions should be 0664
406     and group should be 'portage'. Bug #34260.
407    
408     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
409     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
410     to the real execve (in our execve wrapper). Seems that on some arches (sparc
411     among others) do not allow us to tamper with the readonly copy passed to
412     execve, so pass our own copy of the environment. Bug #42290.
413    
414     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
415     Changed tail to head and added a notice about duration of glibc check.
416    
417     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
418     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
419     as there isn't a guarentee that it is dynamic.
420    
421     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
422     If 'file' passed to before_syscall(const char *func, const char *file) is
423     invalid, we should set errno to ENOENT, and not EINVAL. This should
424     close bug #32238.
425    
426     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
427     Fix a bug that occurs mainly on 64bit arch, where the file passed to
428     the functions we wrap, is invalid, and then cause canonicalize to pass
429     garbage to before_syscall(), thanks to great detective work from
430     Andrea Luzzardi <al@sig11.org> (bug #29846).
431    
432     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
433     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
434    
435     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
436     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
437     only checked the destination patch, and not the source, so we could move
438     a protected file to a unprotected directory, and then delete/modify it.
439     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
440    
441     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
442     Added python2.3 to the predict section/variable.
443    
444     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
445     sandbox.h, sandbox_futils.c :
446     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
447     it is not set, it will revert to its old value.
448    
449     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
450     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
451     rather than failing with a violation, bug #29748.
452    
453     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
454     Fix canonicalize() to ignore calls with path = "".
455    
456     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
457     sandbox_futils.c, canonicalize.c :
458     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
459     call handled strings larger than PATH_MAX (bug #21766). It however does not
460     work the same on 2.4 kernels.
461    
462     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
463     do not need the system call. We use the default getcwd() function via a
464     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
465     means the current directory was removed, OR that the the system call for
466     getcwd failed (curious is that it do not fail and return NULL or set
467     errno, but rather just truncate the retured directory - usually from the
468     start), and if so, we use the generic getcwd() function (__egetcwd). Note
469     that we do not use the generic version all the time, as it calls lstat()
470     a great number of times, and performance degrade much.
471    
472     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
473     libsandbox.c :
474     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
475    
476     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
477     create-localdecls :
478     When checking path names of files accessed, we need to canonicalize it, else
479     it may be a symlink in a 'write allowed' directory pointing to a file in a
480     directory we should not have write access to.
481    
482     With something like coreutils-5.0, we have two problems:
483     1) One of the tests checks if getcwd() can return a path longer than
484     PATH_MAX. This test then tries to create a dir which even while
485     created local (mkdir("conftest2")), it ends up being resolved with
486     a name that is much larger than PATH_MAX. The problem now is that
487     canonicalize() have undefined behaviour when the path was too long
488     (returned wrongly truncated paths, etc), and pass the wrong path to
489     before_syscall() (causing the bogus sandbox violations).
490     2) The ecanonicalize() function we used, along with the canonicalize()
491     function did not support longer than PATH_MAX. This is partly a
492     cause for 1), but the error checking (rather lack of it) of calls
493     to erealpath() in canonicalize() was the prime reason for 1).
494    
495     As we do not use this canonicalized name to call the function, we resolve this
496     by fixing canonicalize() to do better error checking, and ecanonicalize() as
497     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
498     While they will resolve paths properly now, and can check if a write/read is
499     allowed, the functions called from the sandboxed environment will still work
500     as expected.
501    
502     This should resolve bug #21766.
503    
504     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
505     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
506     it (bug #16298).
507    
508     Problem is that for some reason locale fopen's locale.alias with mode "rm".
509    
510     -------------------------------------------------------
511     nosferatu root # grep fopen locale.log
512     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
513     nosferatu root #
514     --------------------------------------------------------
515    
516     I checked the source of locale, but it have fopen with mode 'r', so
517     not sure where the "rm" mode comes from. Anyhow, changed the check in
518     before_syscall_open_char() to also see mode "rm" as readonly.
519    
520     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
521    
522     Add glibc-2.3 support.
523    
524     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
525    
526     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
527     operations releated to preload, as well as only try to modify ld.so.preload
528     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
529     not using ld.so.preload. Fix to not write this instance of sandbox's pid
530     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
531    
532     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
533    
534     Changed the LD to CC for hppa.
535    
536     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
537    
538     Killed the previous changes I made.
539    
540     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
541    
542     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
543    
544     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
545    
546     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
547    
548     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
549    
550     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
551     for this fix.
552    
553     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
554    
555     sandbox_futils defined a dirname() function that was masking the same
556     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
557     '/usr/lib/portage/bi/'). Fixed function to return expected results and
558     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
559     11231.
560    
561     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
562    
563     Fix a segfault in libsandbox.c if canonicalize() was called with
564     first parameter = NULL.
565    
566     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
567    
568     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
569     cleanup() for this.
570    
571     Change cleanup() in sandbox.c not to exit with fail status if
572     the pidsfile is missing. We really should still display sandbox
573     violations if they occured.
574    
575     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
576    
577     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
578     the last sandbox running.
579    
580     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
581    
582     Major cleanups to mainly libsandbox.c again.
583    
584     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
585    
586     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
587     parties involved should please contact me so that we can fix it.
588    
589     Add opendir wrapper to libsandbox.c.
590    
591     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
592    
593     Do some more cleanups to ecanonicalize(), as it dropped filenames in
594     rare cases (after my symlink cleanups), and caused glibc to bork.
595     These fixes went into canonicalize.c.
596    
597     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
598    
599     Fix spawn_shell() and main() in sandbox.c to properly return fail
600     status.
601    
602     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
603    
604     The new canonicalize() function in libsandbox.c also resolved symlinks,
605     which caused on cleaning sandbox errors if the symlink pointed to a
606     file in the live root. Ripped out canonicalize() and realpath() from
607     glibc; removed the symlink stuff, and changed them to ecanonicalize()
608     and erealpath().
609    
610     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
611    
612     Ripped out all the wrappers, and implemented those of InstallWatch.
613     Losts of cleanups and bugfixes. Implement a execve that forces
614     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
615     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
616     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
617     parts; it now have an install target.
618    
619     Reformat the whole thing to look somewhat like the reworked sandbox.c
620     and new sandbox.h and sandbox_futils.c from:
621    
622     Brad House <brad@mainstreetsoftworks.com>.
623    
624     Additional Copyrights now due to the InstallWatch code:
625    
626     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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