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Revision 187 - (hide annotations) (download)
Thu Dec 1 01:00:40 2005 UTC (8 years, 11 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 30559 byte(s)
Fix non-versioned libc's to also prepend '__' to internal symbols by using
strong aliases.

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 183 01 Dec 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, Makefile.am,
6     localdecls.h, scripts/Makefile.am, scripts/gen_symbol_version_map.awk,
7     scripts/gen_symbol_header.awk, src/Makefile.am, src/symbols.in,
8 azarah 184 src/libsandbox.c, src/getcwd.c, src/sandbox.c, data/sandbox.bashrc:
9 azarah 183
10     Use versioned symbols on supported libc's for functions we wrap, as well as
11     provide all versions of specific functions. Some syntax cleanups.
12    
13 azarah 184 Only check SANDBOX_ACTIVE, and not its value. More BASH_ENV fixes.
14    
15 azarah 186 Rename configure.in to configure.ac.
16    
17 azarah 187 Fix non-versioned libc's to also prepend '__' to internal symbols by using
18     strong aliases.
19    
20 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
21 azarah 181 sandbox_fdutils.c:
22 azarah 179
23     Detect if we on 64bit arch automatically.
24    
25 azarah 180 Update contact email. Fix quoting.
26    
27 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
28     path checking as well, and add --enable-multilib switch to configure.
29    
30 azarah 176 * sandbox-1.2.14 (2005/11/28)
31    
32 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
33 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
34 azarah 172
35     Check generic getcwd()'s return as well for validity, bug #101728.
36    
37 azarah 173 Cleanup environ variables.
38    
39 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
40     to readonly in sandbox.bashrc.
41    
42 azarah 175 Make sure we use our bashrc.
43    
44 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
45    
46     Do not pass mode to true_open and true_open64 if not needed. Should fix a
47     segfault in some cases.
48    
49 azarah 169 * sandbox-1.2.13 (2005/09/12)
50 azarah 167
51 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
52 azarah 165
53     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
54     itself.
55    
56 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
57     uClibc 'call preloaded library fini before that of app' issue ... probably
58     will not help much, but we try.
59    
60 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
61    
62     Also allow symlink() system call to operate on a symlink in a writable path
63     that points to non-writable path, bug #104711.
64    
65 azarah 160 * sandbox-1.2.12 (2005/08/05)
66    
67 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
68     sandbox.h:
69 azarah 156
70     Do not give an access violation if the access() system call do not have
71     write/read access - it does not actually modify, so we only need to return
72     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
73     bug #101433.
74    
75 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
76     and make the current directory the work directory. Also rename the variable
77     portage_tmp_dir to work_dir.
78    
79 azarah 158 Remove the tmp_dir variable - we do not need it.
80    
81 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
82    
83 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
84    
85     Still do normal log if debugging is requested.
86    
87 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
88     to only enable if equal to "1" or "yes".
89    
90 azarah 155 Add /dev/tts to write permit, bug #42809.
91    
92 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
93     sandbox_futils.c:
94    
95     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
96     in libsandbox .. bug #100309.
97    
98 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
99    
100     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
101    
102 azarah 149 * sandbox-1.2.11 (2005/07/14)
103    
104 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
105     Fix getcwd, bug #98419.
106    
107 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
108     libsandbox.c:
109 azarah 146 - Try to cleanup and make error handling/printing consistent.
110     - Remove old logs if present and conflicting with current.
111 azarah 147 - Fix compile error with previous change, and return rather then exit().
112 azarah 145
113 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
114     sandbox.h, sandbox_futils.c:
115     - Fix possible segfault in env init code.
116     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
117     write to /var/log/sandbox/, so in theory do not need all that.
118 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
119 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
120 azarah 142 - Remove unused includes and variables.
121 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
122     OUTSIDE_LIBSANDBOX is not defined.
123 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
124     printing's last line not honouring NOCOLOR.
125 azarah 138
126 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
127     libsandbox.c:
128     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
129     write to it.
130 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
131 azarah 136 - Add check_prefixes() with major cleanup on check_access().
132 azarah 137 - Cleanup init_env_entries() and check_prefixes().
133 azarah 134
134 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
135     sandbox_futils.c, libsandbox.c:
136     Remove unused 'pids file' code.
137    
138 azarah 128 * sandbox-1.2.10 (2005/07/03)
139    
140 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
141     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
142    
143 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
144     General cleanups:
145     - Remove fooling around with exit codes - we error out on presence of a log
146     anyhow.
147 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
148     appropriate there.
149 azarah 123
150 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
151     Cleanup the fail_nametoolong stuff a bit more.
152    
153 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
154 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
155    
156     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
157 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
158     in check_syscall(). Should speed things up a bit (at least for the getcwd()
159     and long path name test it goes down to under a second, and not 10+ seconds
160     like before). Also warn if we skip checking due to the canonicalized path
161     being too long.
162    
163     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
164 azarah 118 More comment/readability cleanups.
165    
166 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
167     sandbox_futils.c, libsandbox.c:
168     Some strncpy/strncat and other cleanups.
169    
170 azarah 115 * sandbox-1.2.9 (2005/06/09)
171    
172 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
173     Move symlink hack down a bit to try and minimize on the amount of lstat()
174     calls we do.
175    
176 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
177     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
178    
179 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
180     Add wrapper for access() function, bug #85413.
181    
182 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
183     Use generic getcwd() implementation from uclibc - should be more portable
184     and looks a bit cleaner.
185    
186 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
187     Make sure our true_* pointers are initialized to NULL, and that we check for
188     all references that they are valid.
189    
190 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
191     Be default we will fail if the path name we try to canonicalize is too long.
192     This however could cause issues with some things (bug #94630 and #21766), so
193     if fail_nametoolong == 0, canonicalize() will return a null length string and
194     do not fail.
195    
196 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
197     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
198     make sure we re-export the new TMPDIR environment variable.
199    
200 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
201     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
202     by Marcus D. Hanwell <cryos@gentoo.org>.
203    
204 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
205     Add /dev/console to write list, bug #38588.
206    
207 azarah 102 * sandbox-1.2.8 (2005/05/13)
208    
209 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
210 azarah 101 sandbox.h, sandbox_futils.c:
211     General cleanups.
212    
213     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
214 azarah 100 sandbox.h:
215     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
216    
217     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
218 azarah 99 sandbox.h, sandbox_futils.c:
219     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
220     to use TMPDIR if present in environment.
221    
222 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
223     Remove sandbox_log_file from main() as its no longer used.
224    
225 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
226     sandbox_futils.c:
227     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
228     if already exported when sandbox started). Fix get_sandbox_log() and new
229     get_sandbox_debug_log() to not use already exported environment variables if
230     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
231     SB_PATH_MAX fixes.
232    
233 azarah 94 * sandbox-1.2.7 (2005/05/12)
234    
235 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
236     sandbox_futils.c:
237     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
238    
239 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
240     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
241     with '(null)' in it if we did not call sandbox with absolute path.
242    
243 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
244 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
245     for the child.
246    
247     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
248 azarah 90 Remove global preload_adaptable as it is no longer used.
249    
250     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
251 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
252     to try and avoid issues like bug #91541 that causes sandbox to crash if
253     we set LD_PRELOAD sandbox side already.
254    
255 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
256 azarah 88 Move print_sandbox_log() up to make things neater.
257    
258     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
259 azarah 87 Remove load_preload_libs(), as its not used anymore.
260    
261 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
262 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
263    
264     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
265 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
266    
267     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
268 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
269    
270 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
271     Fix typo in code that checks if we got valid group information, causing a
272     segmentation fault, bug #91637.
273    
274 azarah 79 * sandbox-1.2.6 (2005/05/10)
275    
276 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
277     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
278     for some odd reason, bug #91541.
279    
280 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
281     Fix typo (sizeof -> strlen).
282    
283 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
284     rewrote the sbcontext caching code so it accounts for env changes since lib
285     initialization.
286    
287 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
288     We create libctest.c via configure, so no need to keep it around. Do some
289     cleanup related to libctest.c and libctest during configure.
290    
291 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
292     Add rename support of symlinks pointing to protected files/directories.
293    
294 azarah 72 * sandbox-1.2.5 (2005/05/04)
295    
296 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
297     sandbox.bashrc:
298     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
299     already set, init of the env vars fails for some reason, so do this later on,
300     and do not warn (bug #91431).
301    
302 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
303     sandbox.bashrc:
304     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
305    
306 azarah 68 * sandbox-1.2.4 (2005/05/03)
307    
308 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
309     Do not init the env entries with each call, as it creates too many calls to
310 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
311 azarah 66
312 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
313     Add /dev/pty to default write list. Noticed by Morfic.
314    
315 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
316     sandbox.h:
317     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
318     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
319    
320 azarah 59 * sandbox-1.2.3 (2005/04/29)
321    
322 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
323     Do not check for (*&#$(* CXX or F77.
324    
325 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
326     Do not append '/' to pathname in filter_path() if it already ends with it.
327    
328 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
329     With az's help, clean up autotools to work with cross-compiling.
330    
331 azarah 59 * sandbox-1.2.2 (2005/04/28)
332 azarah 48
333 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
334     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
335     have issues; bug #90592.
336    
337 azarah 59 * sandbox-1.2.1 (2005/04/23)
338 azarah 44
339 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
340     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
341     Make sure all functions used in libsandbox.c is declared static. Define
342     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
343     linking with its object. Hopefully this will fix bug #90153.
344    
345 azarah 59 * sandbox-1.2 (2005/04/23)
346 azarah 46
347 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
348     Allow lchown a symlink in write-allowed path pointing to write-denied
349     target.
350    
351 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
352     Also show resolved symlink names in the log.
353    
354 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
355     Seems -nostdlib was the problem with the constructor/destructor - remove it
356     from Makefile.am, and change the constructor/destructor names again.
357    
358 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
359     Also rename the _init() and _fini() declarations.
360    
361 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
362     Fixup the constructor/destructor function names again (they should be _init()
363     and _fini() it seems, and not being called caused sandbox_lib_path to be
364     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
365     Add both the path in given SANDBOX_x variable, as well as its symlink
366     resolved path in init_env_entries(). Modify filter_path() to be able to
367     resolve paths without resolving symlinks, as well as to be able to resolve
368     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
369     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
370     for bug #31019 cause access violations if we try to remove a symlink that is
371     not in protected path, but points to a protected path. Fix a memory leak in
372     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
373     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
374     (pid_string was uninitialized). General syntax cleanups.
375    
376 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
377     infamous "pids file is not a regular file" w/out newline bug.
378    
379 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
380     Correct libc_version path detection, since it was screwing up if libdir !=
381     "/lib/".
382    
383     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
384 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
385    
386 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
387 azarah 31 Fix symbols.in not added to dist.
388    
389 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
390 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
391     White space fixes.
392    
393 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
394 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
395 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
396     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
397     for glibc and other libc's that use this. Update libsandbox.c to use these
398     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
399     process unset it.
400    
401 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
402 ferringb 28 killed off _init and _fini in favor of
403     void __attribute__ ((constructor)) init_func and
404     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
405    
406 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
407     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
408     having the hick-ups.
409    
410 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
411     Makefile.am: Fixed compilation.
412    
413 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
414     Gutted the bugger so it stops checking for a c++ and fortran compiler.
415     Do *not* regenerate aclocal.m4 for making a release until a better
416     solution is created.
417    
418 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
419     Removal of more hardcoded paths.
420    
421 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
422     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
423    
424     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
425 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
426     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
427     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
428     To get to a point of testing, automake && autoconf; created requisite files w/
429     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
430     /lib and /usr/lib/portage/bin.
431    
432 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
433     closing out bug #70225, potential overflow of the sandbox_pids_file var.
434    
435     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
436     (think it was at least) allows intermixing of code and data segments. bug #70351
437     should be fixed by this.
438    
439     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
440     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
441    
442     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
443     Seth Robertson that tracked down all adjuct flags for read operations that
444     do not invoke a write operation.
445    
446     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
447     Another fix from jstubbs regarding a free() on a stack variable for the
448     environment -- tracking now prevents extraneous free()'s segfault.
449    
450     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
451     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
452     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
453     Also remove the errno = ESUCCESS settings as documentation points out that
454     a library isn't allowed to do that.
455    
456     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
457     file_security_check() function to check random potential exploits on files
458     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
459     the 'system-crippling' exploits (bug 21923) and catches a few other
460     potential problems.
461    
462     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
463     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
464    
465     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
466     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
467     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
468    
469     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
470     Fix permissions and group of pids file and logs. Permissions should be 0664
471     and group should be 'portage'. Bug #34260.
472    
473     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
474     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
475     to the real execve (in our execve wrapper). Seems that on some arches (sparc
476     among others) do not allow us to tamper with the readonly copy passed to
477     execve, so pass our own copy of the environment. Bug #42290.
478    
479     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
480     Changed tail to head and added a notice about duration of glibc check.
481    
482     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
483     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
484     as there isn't a guarentee that it is dynamic.
485    
486     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487     If 'file' passed to before_syscall(const char *func, const char *file) is
488     invalid, we should set errno to ENOENT, and not EINVAL. This should
489     close bug #32238.
490    
491     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
492     Fix a bug that occurs mainly on 64bit arch, where the file passed to
493     the functions we wrap, is invalid, and then cause canonicalize to pass
494     garbage to before_syscall(), thanks to great detective work from
495     Andrea Luzzardi <al@sig11.org> (bug #29846).
496    
497     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
498     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
499    
500     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
501     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
502     only checked the destination patch, and not the source, so we could move
503     a protected file to a unprotected directory, and then delete/modify it.
504     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
505    
506     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
507     Added python2.3 to the predict section/variable.
508    
509     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
510     sandbox.h, sandbox_futils.c :
511     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
512     it is not set, it will revert to its old value.
513    
514     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
515     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
516     rather than failing with a violation, bug #29748.
517    
518     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
519     Fix canonicalize() to ignore calls with path = "".
520    
521     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
522     sandbox_futils.c, canonicalize.c :
523     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
524     call handled strings larger than PATH_MAX (bug #21766). It however does not
525     work the same on 2.4 kernels.
526    
527     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
528     do not need the system call. We use the default getcwd() function via a
529     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
530     means the current directory was removed, OR that the the system call for
531     getcwd failed (curious is that it do not fail and return NULL or set
532     errno, but rather just truncate the retured directory - usually from the
533     start), and if so, we use the generic getcwd() function (__egetcwd). Note
534     that we do not use the generic version all the time, as it calls lstat()
535     a great number of times, and performance degrade much.
536    
537     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
538     libsandbox.c :
539     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
540    
541     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
542     create-localdecls :
543     When checking path names of files accessed, we need to canonicalize it, else
544     it may be a symlink in a 'write allowed' directory pointing to a file in a
545     directory we should not have write access to.
546    
547     With something like coreutils-5.0, we have two problems:
548     1) One of the tests checks if getcwd() can return a path longer than
549     PATH_MAX. This test then tries to create a dir which even while
550     created local (mkdir("conftest2")), it ends up being resolved with
551     a name that is much larger than PATH_MAX. The problem now is that
552     canonicalize() have undefined behaviour when the path was too long
553     (returned wrongly truncated paths, etc), and pass the wrong path to
554     before_syscall() (causing the bogus sandbox violations).
555     2) The ecanonicalize() function we used, along with the canonicalize()
556     function did not support longer than PATH_MAX. This is partly a
557     cause for 1), but the error checking (rather lack of it) of calls
558     to erealpath() in canonicalize() was the prime reason for 1).
559    
560     As we do not use this canonicalized name to call the function, we resolve this
561     by fixing canonicalize() to do better error checking, and ecanonicalize() as
562     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
563     While they will resolve paths properly now, and can check if a write/read is
564     allowed, the functions called from the sandboxed environment will still work
565     as expected.
566    
567     This should resolve bug #21766.
568    
569     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
570     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
571     it (bug #16298).
572    
573     Problem is that for some reason locale fopen's locale.alias with mode "rm".
574    
575     -------------------------------------------------------
576     nosferatu root # grep fopen locale.log
577     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
578     nosferatu root #
579     --------------------------------------------------------
580    
581     I checked the source of locale, but it have fopen with mode 'r', so
582     not sure where the "rm" mode comes from. Anyhow, changed the check in
583     before_syscall_open_char() to also see mode "rm" as readonly.
584    
585     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
586    
587     Add glibc-2.3 support.
588    
589     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
590    
591     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
592     operations releated to preload, as well as only try to modify ld.so.preload
593     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
594     not using ld.so.preload. Fix to not write this instance of sandbox's pid
595     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
596    
597     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
598    
599     Changed the LD to CC for hppa.
600    
601     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
602    
603     Killed the previous changes I made.
604    
605     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
606    
607     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
608    
609     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
610    
611     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
612    
613     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
614    
615     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
616     for this fix.
617    
618     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
619    
620     sandbox_futils defined a dirname() function that was masking the same
621     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
622     '/usr/lib/portage/bi/'). Fixed function to return expected results and
623     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
624     11231.
625    
626     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
627    
628     Fix a segfault in libsandbox.c if canonicalize() was called with
629     first parameter = NULL.
630    
631     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
632    
633     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
634     cleanup() for this.
635    
636     Change cleanup() in sandbox.c not to exit with fail status if
637     the pidsfile is missing. We really should still display sandbox
638     violations if they occured.
639    
640     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
641    
642     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
643     the last sandbox running.
644    
645     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
646    
647     Major cleanups to mainly libsandbox.c again.
648    
649     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
650    
651     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
652     parties involved should please contact me so that we can fix it.
653    
654     Add opendir wrapper to libsandbox.c.
655    
656     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
657    
658     Do some more cleanups to ecanonicalize(), as it dropped filenames in
659     rare cases (after my symlink cleanups), and caused glibc to bork.
660     These fixes went into canonicalize.c.
661    
662     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
663    
664     Fix spawn_shell() and main() in sandbox.c to properly return fail
665     status.
666    
667     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
668    
669     The new canonicalize() function in libsandbox.c also resolved symlinks,
670     which caused on cleaning sandbox errors if the symlink pointed to a
671     file in the live root. Ripped out canonicalize() and realpath() from
672     glibc; removed the symlink stuff, and changed them to ecanonicalize()
673     and erealpath().
674    
675     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
676    
677     Ripped out all the wrappers, and implemented those of InstallWatch.
678     Losts of cleanups and bugfixes. Implement a execve that forces
679     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
680     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
681     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
682     parts; it now have an install target.
683    
684     Reformat the whole thing to look somewhat like the reworked sandbox.c
685     and new sandbox.h and sandbox_futils.c from:
686    
687     Brad House <brad@mainstreetsoftworks.com>.
688    
689     Additional Copyrights now due to the InstallWatch code:
690    
691     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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