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Revision 157 - (hide annotations) (download)
Fri Aug 5 13:55:08 2005 UTC (8 years, 8 months ago) by azarah
File size: 28267 byte(s)
If we are called from the command line, do not care about PORTAGE_TMPDIR,
and make the current directory the work directory.  Also rename the variable
portage_tmp_dir to work_dir.

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

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