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Revision 195 - (hide annotations) (download)
Thu Dec 1 11:04:31 2005 UTC (8 years, 11 months ago) by azarah
Original Path: trunk/ChangeLog
File size: 31181 byte(s)
Rather use fstat() to get file size in file_length() than lseek().
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 194 Use egetcwd() in sandbox.c.
34    
35 azarah 195 Rather use fstat() to get file size in file_length() than lseek().
36    
37 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, sandbox.c,
38 azarah 181 sandbox_fdutils.c:
39 azarah 179
40     Detect if we on 64bit arch automatically.
41    
42 azarah 180 Update contact email. Fix quoting.
43    
44 azarah 181 Revert 64bit arch test, as we should build the 32bit version without full
45     path checking as well, and add --enable-multilib switch to configure.
46    
47 azarah 176 * sandbox-1.2.14 (2005/11/28)
48    
49 azarah 183 28 Nov 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
50 azarah 174 sandbox.c, sandbox.h, sandbox.bashrc:
51 azarah 172
52     Check generic getcwd()'s return as well for validity, bug #101728.
53    
54 azarah 173 Cleanup environ variables.
55    
56 azarah 174 Rather check SANDBOX_ACTIVE if we are already running. Set SANDBOX_ACTIVE
57     to readonly in sandbox.bashrc.
58    
59 azarah 175 Make sure we use our bashrc.
60    
61 azarah 170 01 Nov 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
62    
63     Do not pass mode to true_open and true_open64 if not needed. Should fix a
64     segfault in some cases.
65    
66 azarah 169 * sandbox-1.2.13 (2005/09/12)
67 azarah 167
68 azarah 166 12 Sep 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, libsandbox.c:
69 azarah 165
70     Do not handle adding working directory to SANDBOX_WRITE, as portage does it
71     itself.
72    
73 azarah 166 Make libsb_fini() do cleanup a bit more complete just in case we get another
74     uClibc 'call preloaded library fini before that of app' issue ... probably
75     will not help much, but we try.
76    
77 azarah 164 04 Sep 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
78    
79     Also allow symlink() system call to operate on a symlink in a writable path
80     that points to non-writable path, bug #104711.
81    
82 azarah 160 * sandbox-1.2.12 (2005/08/05)
83    
84 azarah 159 05 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
85     sandbox.h:
86 azarah 156
87     Do not give an access violation if the access() system call do not have
88     write/read access - it does not actually modify, so we only need to return
89     not being able to write/read. Noted by Andres Loeh <kosmikus@gentoo.org>,
90     bug #101433.
91    
92 azarah 157 If we are called from the command line, do not care about PORTAGE_TMPDIR,
93     and make the current directory the work directory. Also rename the variable
94     portage_tmp_dir to work_dir.
95    
96 azarah 158 Remove the tmp_dir variable - we do not need it.
97    
98 azarah 159 Improve error handling for get_sandbox_*_envvar() functions.
99    
100 azarah 153 01 Aug 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
101    
102     Still do normal log if debugging is requested.
103    
104 azarah 154 Add support for SANDBOX_VERBOSE (enabled by default). Adjust SANDBOX_DEBUG
105     to only enable if equal to "1" or "yes".
106    
107 azarah 155 Add /dev/tts to write permit, bug #42809.
108    
109 azarah 152 27 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
110     sandbox_futils.c:
111    
112     Do not resolve symlinks in PORTAGE_TMPDIR in sandbox .. we will handle that
113     in libsandbox .. bug #100309.
114    
115 azarah 151 22 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h:
116    
117     Print all logging to stderr, bug #90343, comment #15, by Zac Medico.
118    
119 azarah 149 * sandbox-1.2.11 (2005/07/14)
120    
121 azarah 148 14 July 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
122     Fix getcwd, bug #98419.
123    
124 azarah 145 08 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c,
125     libsandbox.c:
126 azarah 146 - Try to cleanup and make error handling/printing consistent.
127     - Remove old logs if present and conflicting with current.
128 azarah 147 - Fix compile error with previous change, and return rather then exit().
129 azarah 145
130 azarah 139 07 July 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
131     sandbox.h, sandbox_futils.c:
132     - Fix possible segfault in env init code.
133     - Major cleanup of sandbox_futils.c. Removed most of the functions as we now
134     write to /var/log/sandbox/, so in theory do not need all that.
135 azarah 140 - Redo the interface of the get_* functions so that we do not leak memory.
136 azarah 141 - Remove sandbox_dir and co - we are not using it anymore.
137 azarah 142 - Remove unused includes and variables.
138 azarah 143 - Only declare functions in sandbox_futils.c that are used in libsandbox.c when
139     OUTSIDE_LIBSANDBOX is not defined.
140 azarah 144 - Cleanup access/log printing. Make access printing honour NOCOLOR. Fix log
141     printing's last line not honouring NOCOLOR.
142 azarah 138
143 azarah 134 06 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.h, sandbox_futils.c,
144     libsandbox.c:
145     - Change log dir to /var/log/sandbox/. Make sure the sandboxed process cannot
146     write to it.
147 azarah 135 - Clean up logging in libsandbox.c, and hopefully make it more consistant.
148 azarah 136 - Add check_prefixes() with major cleanup on check_access().
149 azarah 137 - Cleanup init_env_entries() and check_prefixes().
150 azarah 134
151 azarah 133 05 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
152     sandbox_futils.c, libsandbox.c:
153     Remove unused 'pids file' code.
154    
155 azarah 128 * sandbox-1.2.10 (2005/07/03)
156    
157 azarah 126 03 July 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
158     Add PREDICT items for nss-db, bug #92079. Patch from Robin Johnson.
159    
160 azarah 123 17 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
161     General cleanups:
162     - Remove fooling around with exit codes - we error out on presence of a log
163     anyhow.
164 azarah 124 - Move get_sandbox_*_envvar() to sandbox_setup_environ(), as its more
165     appropriate there.
166 azarah 123
167 azarah 121 12 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
168     Cleanup the fail_nametoolong stuff a bit more.
169    
170 azarah 118 11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
171 azarah 120 Remove hopefully the last ld.so.preload bits we do not use anymore.
172    
173     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
174 azarah 119 Remove the unneeded canonicalize() calls in the wrappers - we do it anyhow
175     in check_syscall(). Should speed things up a bit (at least for the getcwd()
176     and long path name test it goes down to under a second, and not 10+ seconds
177     like before). Also warn if we skip checking due to the canonicalized path
178     being too long.
179    
180     11 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
181 azarah 118 More comment/readability cleanups.
182    
183 azarah 117 10 June 2005; Martin Schlemmer <azarah@gentoo.org> canonicalize.c, getcwd.c,
184     sandbox_futils.c, libsandbox.c:
185     Some strncpy/strncat and other cleanups.
186    
187 azarah 115 * sandbox-1.2.9 (2005/06/09)
188    
189 azarah 114 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
190     Move symlink hack down a bit to try and minimize on the amount of lstat()
191     calls we do.
192    
193 azarah 113 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
194     Add hack to allow writing to /proc/self/fd (or /dev/fd), bug #91516.
195    
196 azarah 112 09 June 2005; Martin Schlemmer <azarah@gentoo.org> symbols.in, libsandbox.c:
197     Add wrapper for access() function, bug #85413.
198    
199 azarah 111 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c:
200     Use generic getcwd() implementation from uclibc - should be more portable
201     and looks a bit cleaner.
202    
203 azarah 110 09 June 2005; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c:
204     Make sure our true_* pointers are initialized to NULL, and that we check for
205     all references that they are valid.
206    
207 azarah 109 09 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
208     Be default we will fail if the path name we try to canonicalize is too long.
209     This however could cause issues with some things (bug #94630 and #21766), so
210     if fail_nametoolong == 0, canonicalize() will return a null length string and
211     do not fail.
212    
213 azarah 108 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c:
214     Do not abort if TMPDIR is not valid, but rather use '/tmp', bug #94360. Also
215     make sure we re-export the new TMPDIR environment variable.
216    
217 azarah 106 08 June 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
218     Fix incorrect free of non-malloc'd array, bug #92313 and #94020. Fix noted
219     by Marcus D. Hanwell <cryos@gentoo.org>.
220    
221 azarah 105 08 June 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
222     Add /dev/console to write list, bug #38588.
223    
224 azarah 102 * sandbox-1.2.8 (2005/05/13)
225    
226 azarah 99 13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
227 azarah 101 sandbox.h, sandbox_futils.c:
228     General cleanups.
229    
230     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
231 azarah 100 sandbox.h:
232     Various LD_PRELOAD cleanups. Do not unset LD_PRELOAD for parent.
233    
234     13 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
235 azarah 99 sandbox.h, sandbox_futils.c:
236     Modify get_sandbox_pids_file(), get_sandbox_log() and get_sandbox_debug_log()
237     to use TMPDIR if present in environment.
238    
239 azarah 98 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
240     Remove sandbox_log_file from main() as its no longer used.
241    
242 azarah 97 13 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
243     sandbox_futils.c:
244     Add get_sandbox_debug_log(), and use it (add behaviour similar to SANDBOX_LOG
245     if already exported when sandbox started). Fix get_sandbox_log() and new
246     get_sandbox_debug_log() to not use already exported environment variables if
247     they have '/' in them. Use snprintf()'s instead of strncpy()'s. More
248     SB_PATH_MAX fixes.
249    
250 azarah 94 * sandbox-1.2.7 (2005/05/12)
251    
252 azarah 93 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
253     sandbox_futils.c:
254     More path limit fixes. Declare SB_BUF_LEN global and use it where needed.
255    
256 azarah 92 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
257     Fix paths limited to 255 chars. Fix get_sandbox_dir() returning a string
258     with '(null)' in it if we did not call sandbox with absolute path.
259    
260 azarah 89 12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
261 azarah 91 Set SANDBOX_ON *before* doing the child's env stuff, else its not set
262     for the child.
263    
264     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
265 azarah 90 Remove global preload_adaptable as it is no longer used.
266    
267     12 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
268 azarah 89 Rewrite environment stuff to only be set when execve'ing the child process
269     to try and avoid issues like bug #91541 that causes sandbox to crash if
270     we set LD_PRELOAD sandbox side already.
271    
272 azarah 87 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
273 azarah 88 Move print_sandbox_log() up to make things neater.
274    
275     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
276 azarah 87 Remove load_preload_libs(), as its not used anymore.
277    
278 azarah 83 11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
279 azarah 86 Remove NO_FORK stuff, as its not used, and 'strace -f' works just fine.
280    
281     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
282 azarah 84 Remove USE_SYSTEM_SHELL stuff, as it is not secure, and not in use.
283    
284     11 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h:
285 azarah 83 Remove ld.so.preload crap - we are not going to use it again.
286    
287 azarah 82 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox_futils.c:
288     Fix typo in code that checks if we got valid group information, causing a
289     segmentation fault, bug #91637.
290    
291 azarah 79 * sandbox-1.2.6 (2005/05/10)
292    
293 azarah 78 10 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
294     Do not use LD_PRELOAD if it contains libtsocks.so, as it breaks sandbox
295     for some odd reason, bug #91541.
296    
297 azarah 77 09 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
298     Fix typo (sizeof -> strlen).
299    
300 ferringb 76 08 May 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
301     rewrote the sbcontext caching code so it accounts for env changes since lib
302     initialization.
303    
304 azarah 75 05 May 2005; Martin Schlemmer <azarah@gentoo.org> configure.in, libctest.c:
305     We create libctest.c via configure, so no need to keep it around. Do some
306     cleanup related to libctest.c and libctest during configure.
307    
308 azarah 74 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
309     Add rename support of symlinks pointing to protected files/directories.
310    
311 azarah 72 * sandbox-1.2.5 (2005/05/04)
312    
313 azarah 71 04 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
314     sandbox.bashrc:
315     Do not reset already set LD_PRELOAD when starting sandbox. If LD_PRELOAD is
316     already set, init of the env vars fails for some reason, so do this later on,
317     and do not warn (bug #91431).
318    
319 azarah 70 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox.h,
320     sandbox.bashrc:
321     Fixup sandbox and sandbox.bashrc to call bash with the proper .bashrc.
322    
323 azarah 68 * sandbox-1.2.4 (2005/05/03)
324    
325 azarah 66 03 May 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
326     Do not init the env entries with each call, as it creates too many calls to
327 azarah 67 lstat, etc. Should speedup things a bit, bug #91040.
328 azarah 66
329 azarah 65 03 May 2005; Martin Schlemmer <azarah@gentoo.org> sandbox.c:
330     Add /dev/pty to default write list. Noticed by Morfic.
331    
332 vapier 62 02 May 2005; Mike Frysinger <vapier@gentoo.org> configure.in, localdecls.h,
333     sandbox.h:
334     uClibc doesn't support dlvsym() so add a configure check to make sure it doesn't
335     exist. Also update localdecls.h so BROKEN_RTLD_NEXT isn't defined in uClibc.
336    
337 azarah 59 * sandbox-1.2.3 (2005/04/29)
338    
339 azarah 56 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> configure.in:
340     Do not check for (*&#$(* CXX or F77.
341    
342 azarah 54 29 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
343     Do not append '/' to pathname in filter_path() if it already ends with it.
344    
345 vapier 53 28 Apr 2005; Mike Frysinger <vapier@gentoo.org> Makefile.am, configure.in:
346     With az's help, clean up autotools to work with cross-compiling.
347    
348 azarah 59 * sandbox-1.2.2 (2005/04/28)
349 azarah 48
350 azarah 47 28 Apr 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
351     Only check for /dev/{null,zero} for unlink hack, else ricers using /dev/shm
352     have issues; bug #90592.
353    
354 azarah 59 * sandbox-1.2.1 (2005/04/23)
355 azarah 44
356 azarah 43 23 Apr 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
357     getcwd.c, libsandbox.c, localdecls.h, sandbox.h, sandbox_futils.c:
358     Make sure all functions used in libsandbox.c is declared static. Define
359     SB_STATIC in localdecls.h for this. Include sandbox_futils.c rather than
360     linking with its object. Hopefully this will fix bug #90153.
361    
362 azarah 59 * sandbox-1.2 (2005/04/23)
363 azarah 46
364 azarah 40 22 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
365     Allow lchown a symlink in write-allowed path pointing to write-denied
366     target.
367    
368 genone 39 21 Mar 2005; Marius Mauch <genone@gentoo.org> libsandbox.c:
369     Also show resolved symlink names in the log.
370    
371 azarah 37 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, libsandbox.c:
372     Seems -nostdlib was the problem with the constructor/destructor - remove it
373     from Makefile.am, and change the constructor/destructor names again.
374    
375 azarah 36 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
376     Also rename the _init() and _fini() declarations.
377    
378 azarah 35 14 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c:
379     Fixup the constructor/destructor function names again (they should be _init()
380     and _fini() it seems, and not being called caused sandbox_lib_path to be
381     unset, and thus breaking the execve() wrapper's LD_PRELOAD protection).
382     Add both the path in given SANDBOX_x variable, as well as its symlink
383     resolved path in init_env_entries(). Modify filter_path() to be able to
384     resolve paths without resolving symlinks, as well as to be able to resolve
385     symlinks. Fix a possible segfault in check_access(). Add symlink resolving
386     to check_access() resolving bug #31019. Add 'hack' for unlink, as the fix
387     for bug #31019 cause access violations if we try to remove a symlink that is
388     not in protected path, but points to a protected path. Fix a memory leak in
389     sandbox.c (sandbox_pids_file in main()). Fix the realpath() calls in main()
390     (sandbox.c) being unchecked. Fix the debug logname not having the pid in it
391     (pid_string was uninitialized). General syntax cleanups.
392    
393 ferringb 34 09 Mar 2005; Brian Harring <ferringb@gentoo.org> sandbox.c: Fixed the
394     infamous "pids file is not a regular file" w/out newline bug.
395    
396 ferringb 33 09 Mar 2005; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in:
397     Correct libc_version path detection, since it was screwing up if libdir !=
398     "/lib/".
399    
400     02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> libsandbox.c:
401 azarah 32 Hack to make sure sandboxed process cannot remove a device node, bug #79836.
402    
403 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am:
404 azarah 31 Fix symbols.in not added to dist.
405    
406 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
407 azarah 30 getcwd.c, libsandbox.c, sandbox.c, sandbox.h, sandbox_futils.c:
408     White space fixes.
409    
410 ferringb 33 02 Mar 2005; Martin Schlemmer <azarah@gentoo.org> Makefile.am, canonicalize.c,
411 azarah 30 configure.in, getcwd.c, libsandbox.c, symbols.in:
412 azarah 29 Fix inverse test logic in canonicalize.c, use a strncpy. Fix gcc warning in
413     getcwd.c. Add symbols.in and logic to Makefile.am to generate symbol versions
414     for glibc and other libc's that use this. Update libsandbox.c to use these
415     symbol versions if available. Fix exec wrapper to re-export LD_PRELOAD if the
416     process unset it.
417    
418 ferringb 33 01 Mar 2005; Brian Harring <ferringb@gentoo.org> libsandbox.c:
419 ferringb 28 killed off _init and _fini in favor of
420     void __attribute__ ((constructor)) init_func and
421     void __attribute__ ((destructor)) closing_func. _(init|func) were deprecated.
422    
423 ferringb 26 06 Dec 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, libsandbox.c,
424     canonicalize.c, getcwd.c: Fixed compilation *again*. Hopefully cvs is done
425     having the hick-ups.
426    
427 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
428     Makefile.am: Fixed compilation.
429    
430 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
431     Gutted the bugger so it stops checking for a c++ and fortran compiler.
432     Do *not* regenerate aclocal.m4 for making a release until a better
433     solution is created.
434    
435 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
436     Removal of more hardcoded paths.
437    
438 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
439     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
440    
441     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
442 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
443     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
444     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
445     To get to a point of testing, automake && autoconf; created requisite files w/
446     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
447     /lib and /usr/lib/portage/bin.
448    
449 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
450     closing out bug #70225, potential overflow of the sandbox_pids_file var.
451    
452     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
453     (think it was at least) allows intermixing of code and data segments. bug #70351
454     should be fixed by this.
455    
456     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
457     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
458    
459     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
460     Seth Robertson that tracked down all adjuct flags for read operations that
461     do not invoke a write operation.
462    
463     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
464     Another fix from jstubbs regarding a free() on a stack variable for the
465     environment -- tracking now prevents extraneous free()'s segfault.
466    
467     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
468     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
469     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
470     Also remove the errno = ESUCCESS settings as documentation points out that
471     a library isn't allowed to do that.
472    
473     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
474     file_security_check() function to check random potential exploits on files
475     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
476     the 'system-crippling' exploits (bug 21923) and catches a few other
477     potential problems.
478    
479     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
480     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
481    
482     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
483     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
484     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
485    
486     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
487     Fix permissions and group of pids file and logs. Permissions should be 0664
488     and group should be 'portage'. Bug #34260.
489    
490     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
491     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
492     to the real execve (in our execve wrapper). Seems that on some arches (sparc
493     among others) do not allow us to tamper with the readonly copy passed to
494     execve, so pass our own copy of the environment. Bug #42290.
495    
496     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
497     Changed tail to head and added a notice about duration of glibc check.
498    
499     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
500     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
501     as there isn't a guarentee that it is dynamic.
502    
503     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
504     If 'file' passed to before_syscall(const char *func, const char *file) is
505     invalid, we should set errno to ENOENT, and not EINVAL. This should
506     close bug #32238.
507    
508     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
509     Fix a bug that occurs mainly on 64bit arch, where the file passed to
510     the functions we wrap, is invalid, and then cause canonicalize to pass
511     garbage to before_syscall(), thanks to great detective work from
512     Andrea Luzzardi <al@sig11.org> (bug #29846).
513    
514     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
515     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
516    
517     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
518     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
519     only checked the destination patch, and not the source, so we could move
520     a protected file to a unprotected directory, and then delete/modify it.
521     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
522    
523     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
524     Added python2.3 to the predict section/variable.
525    
526     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
527     sandbox.h, sandbox_futils.c :
528     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
529     it is not set, it will revert to its old value.
530    
531     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
532     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
533     rather than failing with a violation, bug #29748.
534    
535     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
536     Fix canonicalize() to ignore calls with path = "".
537    
538     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
539     sandbox_futils.c, canonicalize.c :
540     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
541     call handled strings larger than PATH_MAX (bug #21766). It however does not
542     work the same on 2.4 kernels.
543    
544     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
545     do not need the system call. We use the default getcwd() function via a
546     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
547     means the current directory was removed, OR that the the system call for
548     getcwd failed (curious is that it do not fail and return NULL or set
549     errno, but rather just truncate the retured directory - usually from the
550     start), and if so, we use the generic getcwd() function (__egetcwd). Note
551     that we do not use the generic version all the time, as it calls lstat()
552     a great number of times, and performance degrade much.
553    
554     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
555     libsandbox.c :
556     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
557    
558     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
559     create-localdecls :
560     When checking path names of files accessed, we need to canonicalize it, else
561     it may be a symlink in a 'write allowed' directory pointing to a file in a
562     directory we should not have write access to.
563    
564     With something like coreutils-5.0, we have two problems:
565     1) One of the tests checks if getcwd() can return a path longer than
566     PATH_MAX. This test then tries to create a dir which even while
567     created local (mkdir("conftest2")), it ends up being resolved with
568     a name that is much larger than PATH_MAX. The problem now is that
569     canonicalize() have undefined behaviour when the path was too long
570     (returned wrongly truncated paths, etc), and pass the wrong path to
571     before_syscall() (causing the bogus sandbox violations).
572     2) The ecanonicalize() function we used, along with the canonicalize()
573     function did not support longer than PATH_MAX. This is partly a
574     cause for 1), but the error checking (rather lack of it) of calls
575     to erealpath() in canonicalize() was the prime reason for 1).
576    
577     As we do not use this canonicalized name to call the function, we resolve this
578     by fixing canonicalize() to do better error checking, and ecanonicalize() as
579     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
580     While they will resolve paths properly now, and can check if a write/read is
581     allowed, the functions called from the sandboxed environment will still work
582     as expected.
583    
584     This should resolve bug #21766.
585    
586     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
587     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
588     it (bug #16298).
589    
590     Problem is that for some reason locale fopen's locale.alias with mode "rm".
591    
592     -------------------------------------------------------
593     nosferatu root # grep fopen locale.log
594     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
595     nosferatu root #
596     --------------------------------------------------------
597    
598     I checked the source of locale, but it have fopen with mode 'r', so
599     not sure where the "rm" mode comes from. Anyhow, changed the check in
600     before_syscall_open_char() to also see mode "rm" as readonly.
601    
602     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
603    
604     Add glibc-2.3 support.
605    
606     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
607    
608     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
609     operations releated to preload, as well as only try to modify ld.so.preload
610     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
611     not using ld.so.preload. Fix to not write this instance of sandbox's pid
612     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
613    
614     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
615    
616     Changed the LD to CC for hppa.
617    
618     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
619    
620     Killed the previous changes I made.
621    
622     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
623    
624     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
625    
626     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
627    
628     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
629    
630     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
631    
632     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
633     for this fix.
634    
635     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
636    
637     sandbox_futils defined a dirname() function that was masking the same
638     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
639     '/usr/lib/portage/bi/'). Fixed function to return expected results and
640     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
641     11231.
642    
643     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
644    
645     Fix a segfault in libsandbox.c if canonicalize() was called with
646     first parameter = NULL.
647    
648     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
649    
650     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
651     cleanup() for this.
652    
653     Change cleanup() in sandbox.c not to exit with fail status if
654     the pidsfile is missing. We really should still display sandbox
655     violations if they occured.
656    
657     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
658    
659     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
660     the last sandbox running.
661    
662     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
663    
664     Major cleanups to mainly libsandbox.c again.
665    
666     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
667    
668     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
669     parties involved should please contact me so that we can fix it.
670    
671     Add opendir wrapper to libsandbox.c.
672    
673     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
674    
675     Do some more cleanups to ecanonicalize(), as it dropped filenames in
676     rare cases (after my symlink cleanups), and caused glibc to bork.
677     These fixes went into canonicalize.c.
678    
679     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
680    
681     Fix spawn_shell() and main() in sandbox.c to properly return fail
682     status.
683    
684     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
685    
686     The new canonicalize() function in libsandbox.c also resolved symlinks,
687     which caused on cleaning sandbox errors if the symlink pointed to a
688     file in the live root. Ripped out canonicalize() and realpath() from
689     glibc; removed the symlink stuff, and changed them to ecanonicalize()
690     and erealpath().
691    
692     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
693    
694     Ripped out all the wrappers, and implemented those of InstallWatch.
695     Losts of cleanups and bugfixes. Implement a execve that forces
696     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
697     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
698     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
699     parts; it now have an install target.
700    
701     Reformat the whole thing to look somewhat like the reworked sandbox.c
702     and new sandbox.h and sandbox_futils.c from:
703    
704     Brad House <brad@mainstreetsoftworks.com>.
705    
706     Additional Copyrights now due to the InstallWatch code:
707    
708     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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