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Revision 175 - (hide annotations) (download)
Mon Nov 28 10:24:06 2005 UTC (8 years, 7 months ago) by azarah
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Make sure we use our bashrc.
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 173 28 Nov 2005 Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
6 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
7 azarah 172
8     Check generic getcwd()'s return as well for validity, bug #101728.
9    
10 azarah 173 Cleanup environ variables.
11    
12 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
13     to readonly in sandbox.bashrc.
14    
15 azarah 175 Make sure we use our bashrc.
16    
17 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
18    
19     Do not pass mode to true_open and true_open64 if not needed. Should fix a
20     segfault in some cases.
21    
22 azarah 169 * sandbox-1.2.13 (2005/09/12)
23 azarah 167
24 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
25 azarah 165
26     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
27     itself.
28    
29 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
30     uClibc 'call preloaded library fini before that of app' issue ... probably
31     will not help much, but we try.
32    
33 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
34    
35     Also allow symlink() system call to operate on a symlink in a writable path
36     that points to non-writable path, bug #104711.
37    
38 azarah 160 * sandbox-1.2.12 (2005/08/05)
39    
40 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
41     sandbox.h:
42 azarah 156
43     Do not give an access violation if the access() system call do not have
44     write/read access - it does not actually modify, so we only need to return
45     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
46     bug #101433.
47    
48 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
49     and make the current directory the work directory. Also rename the variable
50     portage_tmp_dir to work_dir.
51    
52 azarah 158 Remove the tmp_dir variable - we do not need it.
53    
54 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
55    
56 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
57    
58     Still do normal log if debugging is requested.
59    
60 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
61     to only enable if equal to "1" or "yes".
62    
63 azarah 155 Add /dev/tts to write permit, bug #42809.
64    
65 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
66     sandbox_futils.c:
67    
68     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
69     in libsandbox .. bug #100309.
70    
71 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
72    
73     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
74    
75 azarah 149 * sandbox-1.2.11 (2005/07/14)
76    
77 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
78     Fix getcwd, bug #98419.
79    
80 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
81     libsandbox.c:
82 azarah 146 - Try to cleanup and make error handling/printing consistent.
83     - Remove old logs if present and conflicting with current.
84 azarah 147 - Fix compile error with previous change, and return rather then exit().
85 azarah 145
86 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
87     sandbox.h, sandbox_futils.c:
88     - Fix possible segfault in env init code.
89     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
90     write to /var/log/sandbox/, so in theory do not need all that.
91 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
92 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
93 azarah 142 - Remove unused includes and variables.
94 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
95     OUTSIDE_LIBSANDBOX is not defined.
96 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
97     printing's last line not honouring NOCOLOR.
98 azarah 138
99 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
100     libsandbox.c:
101     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
102     write to it.
103 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
104 azarah 136 - Add check_prefixes() with major cleanup on check_access().
105 azarah 137 - Cleanup init_env_entries() and check_prefixes().
106 azarah 134
107 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
108     sandbox_futils.c, libsandbox.c:
109     Remove unused 'pids file' code.
110    
111 azarah 128 * sandbox-1.2.10 (2005/07/03)
112    
113 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
114     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
115    
116 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
117     General cleanups:
118     - Remove fooling around with exit codes - we error out on presence of a log
119     anyhow.
120 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
121     appropriate there.
122 azarah 123
123 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
124     Cleanup the fail_nametoolong stuff a bit more.
125    
126 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
127 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
128    
129     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
130 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
131     in check_syscall(). Should speed things up a bit (at least for the getcwd()
132     and long path name test it goes down to under a second, and not 10+ seconds
133     like before). Also warn if we skip checking due to the canonicalized path
134     being too long.
135    
136     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
137 azarah 118 More comment/readability cleanups.
138    
139 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
140     sandbox_futils.c, libsandbox.c:
141     Some strncpy/strncat and other cleanups.
142    
143 azarah 115 * sandbox-1.2.9 (2005/06/09)
144    
145 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
146     Move symlink hack down a bit to try and minimize on the amount of lstat()
147     calls we do.
148    
149 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
150     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
151    
152 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
153     Add wrapper for access() function, bug #85413.
154    
155 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
156     Use generic getcwd() implementation from uclibc - should be more portable
157     and looks a bit cleaner.
158    
159 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
160     Make sure our true_* pointers are initialized to NULL, and that we check for
161     all references that they are valid.
162    
163 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
164     Be default we will fail if the path name we try to canonicalize is too long.
165     This however could cause issues with some things (bug #94630 and #21766), so
166     if fail_nametoolong == 0, canonicalize() will return a null length string and
167     do not fail.
168    
169 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
170     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
171     make sure we re-export the new TMPDIR environment variable.
172    
173 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
174     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
175     by Marcus D. Hanwell <cryos@gentoo.org>.
176    
177 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
178     Add /dev/console to write list, bug #38588.
179    
180 azarah 102 * sandbox-1.2.8 (2005/05/13)
181    
182 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
183 azarah 101 sandbox.h, sandbox_futils.c:
184     General cleanups.
185    
186     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
187 azarah 100 sandbox.h:
188     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
189    
190     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
191 azarah 99 sandbox.h, sandbox_futils.c:
192     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
193     to use TMPDIR if present in environment.
194    
195 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
196     Remove sandbox_log_file from main() as its no longer used.
197    
198 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
199     sandbox_futils.c:
200     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
201     if already exported when sandbox started). Fix get_sandbox_log() and new
202     get_sandbox_debug_log() to not use already exported environment variables if
203     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
204     SB_PATH_MAX fixes.
205    
206 azarah 94 * sandbox-1.2.7 (2005/05/12)
207    
208 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
209     sandbox_futils.c:
210     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
211    
212 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
213     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
214     with '(null)' in it if we did not call sandbox with absolute path.
215    
216 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
217 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
218     for the child.
219    
220     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
221 azarah 90 Remove global preload_adaptable as it is no longer used.
222    
223     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
224 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
225     to try and avoid issues like bug #91541 that causes sandbox to crash if
226     we set LD_PRELOAD sandbox side already.
227    
228 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
229 azarah 88 Move print_sandbox_log() up to make things neater.
230    
231     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
232 azarah 87 Remove load_preload_libs(), as its not used anymore.
233    
234 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
235 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
236    
237     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
238 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
239    
240     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
241 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
242    
243 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
244     Fix typo in code that checks if we got valid group information, causing a
245     segmentation fault, bug #91637.
246    
247 azarah 79 * sandbox-1.2.6 (2005/05/10)
248    
249 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
250     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
251     for some odd reason, bug #91541.
252    
253 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
254     Fix typo (sizeof -> strlen).
255    
256 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
257     rewrote the sbcontext caching code so it accounts for env changes since lib
258     initialization.
259    
260 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
261     We create libctest.c via configure, so no need to keep it around. Do some
262     cleanup related to libctest.c and libctest during configure.
263    
264 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
265     Add rename support of symlinks pointing to protected files/directories.
266    
267 azarah 72 * sandbox-1.2.5 (2005/05/04)
268    
269 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
270     sandbox.bashrc:
271     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
272     already set, init of the env vars fails for some reason, so do this later on,
273     and do not warn (bug #91431).
274    
275 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
276     sandbox.bashrc:
277     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
278    
279 azarah 68 * sandbox-1.2.4 (2005/05/03)
280    
281 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
282     Do not init the env entries with each call, as it creates too many calls to
283 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
284 azarah 66
285 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
286     Add /dev/pty to default write list. Noticed by Morfic.
287    
288 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
289     sandbox.h:
290     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
291     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
292    
293 azarah 59 * sandbox-1.2.3 (2005/04/29)
294    
295 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
296     Do not check for (*&#$(* CXX or F77.
297    
298 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
299     Do not append '/' to pathname in filter_path() if it already ends with it.
300    
301 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
302     With az's help, clean up autotools to work with cross-compiling.
303    
304 azarah 59 * sandbox-1.2.2 (2005/04/28)
305 azarah 48
306 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
307     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
308     have issues; bug #90592.
309    
310 azarah 59 * sandbox-1.2.1 (2005/04/23)
311 azarah 44
312 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
313     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
314     Make sure all functions used in libsandbox.c is declared static. Define
315     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
316     linking with its object. Hopefully this will fix bug #90153.
317    
318 azarah 59 * sandbox-1.2 (2005/04/23)
319 azarah 46
320 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
321     Allow lchown a symlink in write-allowed path pointing to write-denied
322     target.
323    
324 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
325     Also show resolved symlink names in the log.
326    
327 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
328     Seems -nostdlib was the problem with the constructor/destructor - remove it
329     from Makefile.am, and change the constructor/destructor names again.
330    
331 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
332     Also rename the _init() and _fini() declarations.
333    
334 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
335     Fixup the constructor/destructor function names again (they should be _init()
336     and _fini() it seems, and not being called caused sandbox_lib_path to be
337     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
338     Add both the path in given SANDBOX_x variable, as well as its symlink
339     resolved path in init_env_entries(). Modify filter_path() to be able to
340     resolve paths without resolving symlinks, as well as to be able to resolve
341     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
342     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
343     for bug #31019 cause access violations if we try to remove a symlink that is
344     not in protected path, but points to a protected path. Fix a memory leak in
345     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
346     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
347     (pid_string was uninitialized). General syntax cleanups.
348    
349 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
350     infamous "pids file is not a regular file" w/out newline bug.
351    
352 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
353     Correct libc_version path detection, since it was screwing up if libdir !=
354     "/lib/".
355    
356     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
357 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
358    
359 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
360 azarah 31 Fix symbols.in not added to dist.
361    
362 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
363 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
364     White space fixes.
365    
366 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
367 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
368 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
369     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
370     for glibc and other libc's that use this. Update libsandbox.c to use these
371     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
372     process unset it.
373    
374 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
375 ferringb 28 killed off _init and _fini in favor of
376     void __attribute__ ((constructor)) init_func and
377     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
378    
379 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
380     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
381     having the hick-ups.
382    
383 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
384     Makefile.am: Fixed compilation.
385    
386 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
387     Gutted the bugger so it stops checking for a c++ and fortran compiler.
388     Do *not* regenerate aclocal.m4 for making a release until a better
389     solution is created.
390    
391 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
392     Removal of more hardcoded paths.
393    
394 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
395     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
396    
397     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
398 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
399     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
400     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
401     To get to a point of testing, automake && autoconf; created requisite files w/
402     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
403     /lib and /usr/lib/portage/bin.
404    
405 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
406     closing out bug #70225, potential overflow of the sandbox_pids_file var.
407    
408     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
409     (think it was at least) allows intermixing of code and data segments. bug #70351
410     should be fixed by this.
411    
412     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
413     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
414    
415     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
416     Seth Robertson that tracked down all adjuct flags for read operations that
417     do not invoke a write operation.
418    
419     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
420     Another fix from jstubbs regarding a free() on a stack variable for the
421     environment -- tracking now prevents extraneous free()'s segfault.
422    
423     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
424     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
425     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
426     Also remove the errno = ESUCCESS settings as documentation points out that
427     a library isn't allowed to do that.
428    
429     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
430     file_security_check() function to check random potential exploits on files
431     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
432     the 'system-crippling' exploits (bug 21923) and catches a few other
433     potential problems.
434    
435     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
436     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
437    
438     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
439     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
440     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
441    
442     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
443     Fix permissions and group of pids file and logs. Permissions should be 0664
444     and group should be 'portage'. Bug #34260.
445    
446     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
447     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
448     to the real execve (in our execve wrapper). Seems that on some arches (sparc
449     among others) do not allow us to tamper with the readonly copy passed to
450     execve, so pass our own copy of the environment. Bug #42290.
451    
452     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
453     Changed tail to head and added a notice about duration of glibc check.
454    
455     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
456     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
457     as there isn't a guarentee that it is dynamic.
458    
459     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
460     If 'file' passed to before_syscall(const char *func, const char *file) is
461     invalid, we should set errno to ENOENT, and not EINVAL. This should
462     close bug #32238.
463    
464     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
465     Fix a bug that occurs mainly on 64bit arch, where the file passed to
466     the functions we wrap, is invalid, and then cause canonicalize to pass
467     garbage to before_syscall(), thanks to great detective work from
468     Andrea Luzzardi <al@sig11.org> (bug #29846).
469    
470     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
471     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
472    
473     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
474     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
475     only checked the destination patch, and not the source, so we could move
476     a protected file to a unprotected directory, and then delete/modify it.
477     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
478    
479     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
480     Added python2.3 to the predict section/variable.
481    
482     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
483     sandbox.h, sandbox_futils.c :
484     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
485     it is not set, it will revert to its old value.
486    
487     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
488     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
489     rather than failing with a violation, bug #29748.
490    
491     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
492     Fix canonicalize() to ignore calls with path = "".
493    
494     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
495     sandbox_futils.c, canonicalize.c :
496     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
497     call handled strings larger than PATH_MAX (bug #21766). It however does not
498     work the same on 2.4 kernels.
499    
500     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
501     do not need the system call. We use the default getcwd() function via a
502     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
503     means the current directory was removed, OR that the the system call for
504     getcwd failed (curious is that it do not fail and return NULL or set
505     errno, but rather just truncate the retured directory - usually from the
506     start), and if so, we use the generic getcwd() function (__egetcwd). Note
507     that we do not use the generic version all the time, as it calls lstat()
508     a great number of times, and performance degrade much.
509    
510     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
511     libsandbox.c :
512     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
513    
514     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
515     create-localdecls :
516     When checking path names of files accessed, we need to canonicalize it, else
517     it may be a symlink in a 'write allowed' directory pointing to a file in a
518     directory we should not have write access to.
519    
520     With something like coreutils-5.0, we have two problems:
521     1) One of the tests checks if getcwd() can return a path longer than
522     PATH_MAX. This test then tries to create a dir which even while
523     created local (mkdir("conftest2")), it ends up being resolved with
524     a name that is much larger than PATH_MAX. The problem now is that
525     canonicalize() have undefined behaviour when the path was too long
526     (returned wrongly truncated paths, etc), and pass the wrong path to
527     before_syscall() (causing the bogus sandbox violations).
528     2) The ecanonicalize() function we used, along with the canonicalize()
529     function did not support longer than PATH_MAX. This is partly a
530     cause for 1), but the error checking (rather lack of it) of calls
531     to erealpath() in canonicalize() was the prime reason for 1).
532    
533     As we do not use this canonicalized name to call the function, we resolve this
534     by fixing canonicalize() to do better error checking, and ecanonicalize() as
535     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
536     While they will resolve paths properly now, and can check if a write/read is
537     allowed, the functions called from the sandboxed environment will still work
538     as expected.
539    
540     This should resolve bug #21766.
541    
542     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
543     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
544     it (bug #16298).
545    
546     Problem is that for some reason locale fopen's locale.alias with mode "rm".
547    
548     -------------------------------------------------------
549     nosferatu root # grep fopen locale.log
550     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
551     nosferatu root #
552     --------------------------------------------------------
553    
554     I checked the source of locale, but it have fopen with mode 'r', so
555     not sure where the "rm" mode comes from. Anyhow, changed the check in
556     before_syscall_open_char() to also see mode "rm" as readonly.
557    
558     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
559    
560     Add glibc-2.3 support.
561    
562     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
563    
564     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
565     operations releated to preload, as well as only try to modify ld.so.preload
566     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
567     not using ld.so.preload. Fix to not write this instance of sandbox's pid
568     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
569    
570     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
571    
572     Changed the LD to CC for hppa.
573    
574     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
575    
576     Killed the previous changes I made.
577    
578     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
579    
580     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
581    
582     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
583    
584     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
585    
586     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
587    
588     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
589     for this fix.
590    
591     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
592    
593     sandbox_futils defined a dirname() function that was masking the same
594     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
595     '/usr/lib/portage/bi/'). Fixed function to return expected results and
596     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
597     11231.
598    
599     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
600    
601     Fix a segfault in libsandbox.c if canonicalize() was called with
602     first parameter = NULL.
603    
604     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
605    
606     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
607     cleanup() for this.
608    
609     Change cleanup() in sandbox.c not to exit with fail status if
610     the pidsfile is missing. We really should still display sandbox
611     violations if they occured.
612    
613     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
614    
615     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
616     the last sandbox running.
617    
618     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
619    
620     Major cleanups to mainly libsandbox.c again.
621    
622     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
623    
624     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
625     parties involved should please contact me so that we can fix it.
626    
627     Add opendir wrapper to libsandbox.c.
628    
629     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
630    
631     Do some more cleanups to ecanonicalize(), as it dropped filenames in
632     rare cases (after my symlink cleanups), and caused glibc to bork.
633     These fixes went into canonicalize.c.
634    
635     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
636    
637     Fix spawn_shell() and main() in sandbox.c to properly return fail
638     status.
639    
640     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
641    
642     The new canonicalize() function in libsandbox.c also resolved symlinks,
643     which caused on cleaning sandbox errors if the symlink pointed to a
644     file in the live root. Ripped out canonicalize() and realpath() from
645     glibc; removed the symlink stuff, and changed them to ecanonicalize()
646     and erealpath().
647    
648     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
649    
650     Ripped out all the wrappers, and implemented those of InstallWatch.
651     Losts of cleanups and bugfixes. Implement a execve that forces
652     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
653     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
654     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
655     parts; it now have an install target.
656    
657     Reformat the whole thing to look somewhat like the reworked sandbox.c
658     and new sandbox.h and sandbox_futils.c from:
659    
660     Brad House <brad@mainstreetsoftworks.com>.
661    
662     Additional Copyrights now due to the InstallWatch code:
663    
664     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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