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Revision 193 - (hide annotations) (download)
Thu Dec 1 10:54:12 2005 UTC (8 years, 4 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 31080 byte(s)
Fixup SANDBOX_ON handling after already running changes.
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 189 Remove the SB_STATIC and including of getcwd.c, etc voodoo, as we new use a
21     symbol map, and all non-exported symbols are local. Cleanup getcwd.c, as
22     the generic getcwd for older 2.4 kernels do not work properly anyhow, and
23     just makes things slower. Some other warning fixes.
24    
25 azarah 190 Rename src/symbols.in to src/symbols.h.in.
26    
27 azarah 191 Cleanup local defines for egetcwd() and erealpath().
28    
29 azarah 192 Rename filter_path() to resolve_path() and other renames for clarity.
30    
31 azarah 193 Fixup SANDBOX_ON handling after already running changes.
32    
33 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
34 azarah 181 sandbox_fdutils.c:
35 azarah 179
36     Detect if we on 64bit arch automatically.
37    
38 azarah 180 Update contact email. Fix quoting.
39    
40 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
41     path checking as well, and add --enable-multilib switch to configure.
42    
43 azarah 176 * sandbox-1.2.14 (2005/11/28)
44    
45 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
46 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
47 azarah 172
48     Check generic getcwd()'s return as well for validity, bug #101728.
49    
50 azarah 173 Cleanup environ variables.
51    
52 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
53     to readonly in sandbox.bashrc.
54    
55 azarah 175 Make sure we use our bashrc.
56    
57 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
58    
59     Do not pass mode to true_open and true_open64 if not needed. Should fix a
60     segfault in some cases.
61    
62 azarah 169 * sandbox-1.2.13 (2005/09/12)
63 azarah 167
64 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
65 azarah 165
66     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
67     itself.
68    
69 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
70     uClibc 'call preloaded library fini before that of app' issue ... probably
71     will not help much, but we try.
72    
73 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
74    
75     Also allow symlink() system call to operate on a symlink in a writable path
76     that points to non-writable path, bug #104711.
77    
78 azarah 160 * sandbox-1.2.12 (2005/08/05)
79    
80 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
81     sandbox.h:
82 azarah 156
83     Do not give an access violation if the access() system call do not have
84     write/read access - it does not actually modify, so we only need to return
85     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
86     bug #101433.
87    
88 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
89     and make the current directory the work directory. Also rename the variable
90     portage_tmp_dir to work_dir.
91    
92 azarah 158 Remove the tmp_dir variable - we do not need it.
93    
94 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
95    
96 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
97    
98     Still do normal log if debugging is requested.
99    
100 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
101     to only enable if equal to "1" or "yes".
102    
103 azarah 155 Add /dev/tts to write permit, bug #42809.
104    
105 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
106     sandbox_futils.c:
107    
108     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
109     in libsandbox .. bug #100309.
110    
111 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
112    
113     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
114    
115 azarah 149 * sandbox-1.2.11 (2005/07/14)
116    
117 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
118     Fix getcwd, bug #98419.
119    
120 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
121     libsandbox.c:
122 azarah 146 - Try to cleanup and make error handling/printing consistent.
123     - Remove old logs if present and conflicting with current.
124 azarah 147 - Fix compile error with previous change, and return rather then exit().
125 azarah 145
126 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
127     sandbox.h, sandbox_futils.c:
128     - Fix possible segfault in env init code.
129     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
130     write to /var/log/sandbox/, so in theory do not need all that.
131 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
132 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
133 azarah 142 - Remove unused includes and variables.
134 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
135     OUTSIDE_LIBSANDBOX is not defined.
136 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
137     printing's last line not honouring NOCOLOR.
138 azarah 138
139 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
140     libsandbox.c:
141     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
142     write to it.
143 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
144 azarah 136 - Add check_prefixes() with major cleanup on check_access().
145 azarah 137 - Cleanup init_env_entries() and check_prefixes().
146 azarah 134
147 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
148     sandbox_futils.c, libsandbox.c:
149     Remove unused 'pids file' code.
150    
151 azarah 128 * sandbox-1.2.10 (2005/07/03)
152    
153 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
154     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
155    
156 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
157     General cleanups:
158     - Remove fooling around with exit codes - we error out on presence of a log
159     anyhow.
160 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
161     appropriate there.
162 azarah 123
163 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
164     Cleanup the fail_nametoolong stuff a bit more.
165    
166 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
167 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
168    
169     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
170 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
171     in check_syscall(). Should speed things up a bit (at least for the getcwd()
172     and long path name test it goes down to under a second, and not 10+ seconds
173     like before). Also warn if we skip checking due to the canonicalized path
174     being too long.
175    
176     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
177 azarah 118 More comment/readability cleanups.
178    
179 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
180     sandbox_futils.c, libsandbox.c:
181     Some strncpy/strncat and other cleanups.
182    
183 azarah 115 * sandbox-1.2.9 (2005/06/09)
184    
185 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
186     Move symlink hack down a bit to try and minimize on the amount of lstat()
187     calls we do.
188    
189 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
190     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
191    
192 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
193     Add wrapper for access() function, bug #85413.
194    
195 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
196     Use generic getcwd() implementation from uclibc - should be more portable
197     and looks a bit cleaner.
198    
199 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
200     Make sure our true_* pointers are initialized to NULL, and that we check for
201     all references that they are valid.
202    
203 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
204     Be default we will fail if the path name we try to canonicalize is too long.
205     This however could cause issues with some things (bug #94630 and #21766), so
206     if fail_nametoolong == 0, canonicalize() will return a null length string and
207     do not fail.
208    
209 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
210     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
211     make sure we re-export the new TMPDIR environment variable.
212    
213 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
214     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
215     by Marcus D. Hanwell <cryos@gentoo.org>.
216    
217 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
218     Add /dev/console to write list, bug #38588.
219    
220 azarah 102 * sandbox-1.2.8 (2005/05/13)
221    
222 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
223 azarah 101 sandbox.h, sandbox_futils.c:
224     General cleanups.
225    
226     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
227 azarah 100 sandbox.h:
228     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
229    
230     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
231 azarah 99 sandbox.h, sandbox_futils.c:
232     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
233     to use TMPDIR if present in environment.
234    
235 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
236     Remove sandbox_log_file from main() as its no longer used.
237    
238 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
239     sandbox_futils.c:
240     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
241     if already exported when sandbox started). Fix get_sandbox_log() and new
242     get_sandbox_debug_log() to not use already exported environment variables if
243     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
244     SB_PATH_MAX fixes.
245    
246 azarah 94 * sandbox-1.2.7 (2005/05/12)
247    
248 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
249     sandbox_futils.c:
250     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
251    
252 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
253     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
254     with '(null)' in it if we did not call sandbox with absolute path.
255    
256 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
257 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
258     for the child.
259    
260     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
261 azarah 90 Remove global preload_adaptable as it is no longer used.
262    
263     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
264 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
265     to try and avoid issues like bug #91541 that causes sandbox to crash if
266     we set LD_PRELOAD sandbox side already.
267    
268 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
269 azarah 88 Move print_sandbox_log() up to make things neater.
270    
271     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
272 azarah 87 Remove load_preload_libs(), as its not used anymore.
273    
274 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
275 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
276    
277     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
278 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
279    
280     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
281 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
282    
283 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
284     Fix typo in code that checks if we got valid group information, causing a
285     segmentation fault, bug #91637.
286    
287 azarah 79 * sandbox-1.2.6 (2005/05/10)
288    
289 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
290     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
291     for some odd reason, bug #91541.
292    
293 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
294     Fix typo (sizeof -> strlen).
295    
296 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
297     rewrote the sbcontext caching code so it accounts for env changes since lib
298     initialization.
299    
300 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
301     We create libctest.c via configure, so no need to keep it around. Do some
302     cleanup related to libctest.c and libctest during configure.
303    
304 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
305     Add rename support of symlinks pointing to protected files/directories.
306    
307 azarah 72 * sandbox-1.2.5 (2005/05/04)
308    
309 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
310     sandbox.bashrc:
311     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
312     already set, init of the env vars fails for some reason, so do this later on,
313     and do not warn (bug #91431).
314    
315 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
316     sandbox.bashrc:
317     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
318    
319 azarah 68 * sandbox-1.2.4 (2005/05/03)
320    
321 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
322     Do not init the env entries with each call, as it creates too many calls to
323 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
324 azarah 66
325 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
326     Add /dev/pty to default write list. Noticed by Morfic.
327    
328 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
329     sandbox.h:
330     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
331     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
332    
333 azarah 59 * sandbox-1.2.3 (2005/04/29)
334    
335 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
336     Do not check for (*&#$(* CXX or F77.
337    
338 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
339     Do not append '/' to pathname in filter_path() if it already ends with it.
340    
341 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
342     With az's help, clean up autotools to work with cross-compiling.
343    
344 azarah 59 * sandbox-1.2.2 (2005/04/28)
345 azarah 48
346 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
347     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
348     have issues; bug #90592.
349    
350 azarah 59 * sandbox-1.2.1 (2005/04/23)
351 azarah 44
352 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
353     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
354     Make sure all functions used in libsandbox.c is declared static. Define
355     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
356     linking with its object. Hopefully this will fix bug #90153.
357    
358 azarah 59 * sandbox-1.2 (2005/04/23)
359 azarah 46
360 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
361     Allow lchown a symlink in write-allowed path pointing to write-denied
362     target.
363    
364 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
365     Also show resolved symlink names in the log.
366    
367 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
368     Seems -nostdlib was the problem with the constructor/destructor - remove it
369     from Makefile.am, and change the constructor/destructor names again.
370    
371 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
372     Also rename the _init() and _fini() declarations.
373    
374 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
375     Fixup the constructor/destructor function names again (they should be _init()
376     and _fini() it seems, and not being called caused sandbox_lib_path to be
377     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
378     Add both the path in given SANDBOX_x variable, as well as its symlink
379     resolved path in init_env_entries(). Modify filter_path() to be able to
380     resolve paths without resolving symlinks, as well as to be able to resolve
381     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
382     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
383     for bug #31019 cause access violations if we try to remove a symlink that is
384     not in protected path, but points to a protected path. Fix a memory leak in
385     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
386     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
387     (pid_string was uninitialized). General syntax cleanups.
388    
389 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
390     infamous "pids file is not a regular file" w/out newline bug.
391    
392 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
393     Correct libc_version path detection, since it was screwing up if libdir !=
394     "/lib/".
395    
396     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
397 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
398    
399 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
400 azarah 31 Fix symbols.in not added to dist.
401    
402 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
403 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
404     White space fixes.
405    
406 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
407 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
408 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
409     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
410     for glibc and other libc's that use this. Update libsandbox.c to use these
411     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
412     process unset it.
413    
414 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
415 ferringb 28 killed off _init and _fini in favor of
416     void __attribute__ ((constructor)) init_func and
417     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
418    
419 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
420     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
421     having the hick-ups.
422    
423 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
424     Makefile.am: Fixed compilation.
425    
426 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
427     Gutted the bugger so it stops checking for a c++ and fortran compiler.
428     Do *not* regenerate aclocal.m4 for making a release until a better
429     solution is created.
430    
431 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
432     Removal of more hardcoded paths.
433    
434 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
435     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
436    
437     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
438 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
439     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
440     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
441     To get to a point of testing, automake && autoconf; created requisite files w/
442     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
443     /lib and /usr/lib/portage/bin.
444    
445 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
446     closing out bug #70225, potential overflow of the sandbox_pids_file var.
447    
448     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
449     (think it was at least) allows intermixing of code and data segments. bug #70351
450     should be fixed by this.
451    
452     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
453     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
454    
455     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
456     Seth Robertson that tracked down all adjuct flags for read operations that
457     do not invoke a write operation.
458    
459     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
460     Another fix from jstubbs regarding a free() on a stack variable for the
461     environment -- tracking now prevents extraneous free()'s segfault.
462    
463     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
464     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
465     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
466     Also remove the errno = ESUCCESS settings as documentation points out that
467     a library isn't allowed to do that.
468    
469     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
470     file_security_check() function to check random potential exploits on files
471     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
472     the 'system-crippling' exploits (bug 21923) and catches a few other
473     potential problems.
474    
475     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
476     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
477    
478     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
479     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
480     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
481    
482     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
483     Fix permissions and group of pids file and logs. Permissions should be 0664
484     and group should be 'portage'. Bug #34260.
485    
486     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
487     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
488     to the real execve (in our execve wrapper). Seems that on some arches (sparc
489     among others) do not allow us to tamper with the readonly copy passed to
490     execve, so pass our own copy of the environment. Bug #42290.
491    
492     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
493     Changed tail to head and added a notice about duration of glibc check.
494    
495     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
496     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
497     as there isn't a guarentee that it is dynamic.
498    
499     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
500     If 'file' passed to before_syscall(const char *func, const char *file) is
501     invalid, we should set errno to ENOENT, and not EINVAL. This should
502     close bug #32238.
503    
504     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
505     Fix a bug that occurs mainly on 64bit arch, where the file passed to
506     the functions we wrap, is invalid, and then cause canonicalize to pass
507     garbage to before_syscall(), thanks to great detective work from
508     Andrea Luzzardi <al@sig11.org> (bug #29846).
509    
510     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
511     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
512    
513     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
514     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
515     only checked the destination patch, and not the source, so we could move
516     a protected file to a unprotected directory, and then delete/modify it.
517     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
518    
519     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
520     Added python2.3 to the predict section/variable.
521    
522     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
523     sandbox.h, sandbox_futils.c :
524     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
525     it is not set, it will revert to its old value.
526    
527     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
528     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
529     rather than failing with a violation, bug #29748.
530    
531     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
532     Fix canonicalize() to ignore calls with path = "".
533    
534     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
535     sandbox_futils.c, canonicalize.c :
536     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
537     call handled strings larger than PATH_MAX (bug #21766). It however does not
538     work the same on 2.4 kernels.
539    
540     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
541     do not need the system call. We use the default getcwd() function via a
542     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
543     means the current directory was removed, OR that the the system call for
544     getcwd failed (curious is that it do not fail and return NULL or set
545     errno, but rather just truncate the retured directory - usually from the
546     start), and if so, we use the generic getcwd() function (__egetcwd). Note
547     that we do not use the generic version all the time, as it calls lstat()
548     a great number of times, and performance degrade much.
549    
550     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
551     libsandbox.c :
552     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
553    
554     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
555     create-localdecls :
556     When checking path names of files accessed, we need to canonicalize it, else
557     it may be a symlink in a 'write allowed' directory pointing to a file in a
558     directory we should not have write access to.
559    
560     With something like coreutils-5.0, we have two problems:
561     1) One of the tests checks if getcwd() can return a path longer than
562     PATH_MAX. This test then tries to create a dir which even while
563     created local (mkdir("conftest2")), it ends up being resolved with
564     a name that is much larger than PATH_MAX. The problem now is that
565     canonicalize() have undefined behaviour when the path was too long
566     (returned wrongly truncated paths, etc), and pass the wrong path to
567     before_syscall() (causing the bogus sandbox violations).
568     2) The ecanonicalize() function we used, along with the canonicalize()
569     function did not support longer than PATH_MAX. This is partly a
570     cause for 1), but the error checking (rather lack of it) of calls
571     to erealpath() in canonicalize() was the prime reason for 1).
572    
573     As we do not use this canonicalized name to call the function, we resolve this
574     by fixing canonicalize() to do better error checking, and ecanonicalize() as
575     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
576     While they will resolve paths properly now, and can check if a write/read is
577     allowed, the functions called from the sandboxed environment will still work
578     as expected.
579    
580     This should resolve bug #21766.
581    
582     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
583     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
584     it (bug #16298).
585    
586     Problem is that for some reason locale fopen's locale.alias with mode "rm".
587    
588     -------------------------------------------------------
589     nosferatu root # grep fopen locale.log
590     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
591     nosferatu root #
592     --------------------------------------------------------
593    
594     I checked the source of locale, but it have fopen with mode 'r', so
595     not sure where the "rm" mode comes from. Anyhow, changed the check in
596     before_syscall_open_char() to also see mode "rm" as readonly.
597    
598     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
599    
600     Add glibc-2.3 support.
601    
602     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
603    
604     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
605     operations releated to preload, as well as only try to modify ld.so.preload
606     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
607     not using ld.so.preload. Fix to not write this instance of sandbox's pid
608     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
609    
610     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
611    
612     Changed the LD to CC for hppa.
613    
614     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
615    
616     Killed the previous changes I made.
617    
618     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
619    
620     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
621    
622     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
623    
624     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
625    
626     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
627    
628     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
629     for this fix.
630    
631     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
632    
633     sandbox_futils defined a dirname() function that was masking the same
634     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
635     '/usr/lib/portage/bi/'). Fixed function to return expected results and
636     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
637     11231.
638    
639     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
640    
641     Fix a segfault in libsandbox.c if canonicalize() was called with
642     first parameter = NULL.
643    
644     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
645    
646     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
647     cleanup() for this.
648    
649     Change cleanup() in sandbox.c not to exit with fail status if
650     the pidsfile is missing. We really should still display sandbox
651     violations if they occured.
652    
653     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
654    
655     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
656     the last sandbox running.
657    
658     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
659    
660     Major cleanups to mainly libsandbox.c again.
661    
662     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
663    
664     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
665     parties involved should please contact me so that we can fix it.
666    
667     Add opendir wrapper to libsandbox.c.
668    
669     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
670    
671     Do some more cleanups to ecanonicalize(), as it dropped filenames in
672     rare cases (after my symlink cleanups), and caused glibc to bork.
673     These fixes went into canonicalize.c.
674    
675     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
676    
677     Fix spawn_shell() and main() in sandbox.c to properly return fail
678     status.
679    
680     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
681    
682     The new canonicalize() function in libsandbox.c also resolved symlinks,
683     which caused on cleaning sandbox errors if the symlink pointed to a
684     file in the live root. Ripped out canonicalize() and realpath() from
685     glibc; removed the symlink stuff, and changed them to ecanonicalize()
686     and erealpath().
687    
688     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
689    
690     Ripped out all the wrappers, and implemented those of InstallWatch.
691     Losts of cleanups and bugfixes. Implement a execve that forces
692     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
693     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
694     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
695     parts; it now have an install target.
696    
697     Reformat the whole thing to look somewhat like the reworked sandbox.c
698     and new sandbox.h and sandbox_futils.c from:
699    
700     Brad House <brad@mainstreetsoftworks.com>.
701    
702     Additional Copyrights now due to the InstallWatch code:
703    
704     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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