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Revision 24 - (hide annotations) (download)
Sun Dec 5 05:42:10 2004 UTC (9 years, 7 months ago) by ferringb
Original Path: trunk/ChangeLog
File size: 13279 byte(s)
should make things compile again

1 ferringb 2 # ChangeLog for Path Sandbox
2     # Copyright 1999-2004 Gentoo Foundation; Distributed under the GPL v2
3     # $Header$
4    
5 ferringb 24 04 Dec 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, getcwd.c,
6     Makefile.am: Fixed compilation.
7    
8 ferringb 18 01 Dec 2004; Brian Harring <ferringb@gentoo.org> aclocal.m4:
9     Gutted the bugger so it stops checking for a c++ and fortran compiler.
10     Do *not* regenerate aclocal.m4 for making a release until a better
11     solution is created.
12    
13 ferringb 16 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, sandbox_futils.c:
14     Removal of more hardcoded paths.
15    
16 ferringb 13 20 Nov 2004; Brian Harring <ferringb@gentoo.org> Makefile.am, configure.in,
17     sandbox_futils.c: tweaks to install sandbox.bashrc, and use it.
18    
19     19 Nov 2004; Brian Harring <ferringb@gentoo.org>:
20 ferringb 6 Sandbox is now autotooled, create-localdecls needs to be killed and the code
21     shifted into configure.in. Currently builds *one* libsandbox.so- if multiple
22     are desired (-m64 and -m32 for amd64), the ebuild should do it (imo).
23     To get to a point of testing, automake && autoconf; created requisite files w/
24     a(utomake|clocal)-1.8, and autoconf 2.59. Installs to /usr/, instead of
25     /lib and /usr/lib/portage/bin.
26    
27 ferringb 2 14 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox.c:
28     closing out bug #70225, potential overflow of the sandbox_pids_file var.
29    
30     07 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c: c99 standard,
31     (think it was at least) allows intermixing of code and data segments. bug #70351
32     should be fixed by this.
33    
34     03 Nov 2004; Brian Harring <ferringb@gentoo.org> libsandbox.c, sandbox_futils.c:
35     futils fix from bug #65201 via solar, and libsandbox log path checks via #69137
36    
37     02 Aug 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Code from
38     Seth Robertson that tracked down all adjuct flags for read operations that
39     do not invoke a write operation.
40    
41     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
42     Another fix from jstubbs regarding a free() on a stack variable for the
43     environment -- tracking now prevents extraneous free()'s segfault.
44    
45     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c, sandbox.c:
46     J. Stubbs tracked down a new bug where mkdir was failing to the patch on
47     the lstat in mkdir... it now only returns 0 or -1 as documented for mkdir.
48     Also remove the errno = ESUCCESS settings as documentation points out that
49     a library isn't allowed to do that.
50    
51     04 Apr 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c: Added a
52     file_security_check() function to check random potential exploits on files
53     that sandbox is to load and read -- Normally sandboxpids.tmp. This fixes
54     the 'system-crippling' exploits (bug 21923) and catches a few other
55     potential problems.
56    
57     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> Makefile: Updates for
58     32/64 bit sandbox. Made CC and LD '?=' values to allow passed in CC to work.
59    
60     20 Mar 2004; Nicholas Jones <carpaski@gentoo.org> libsandbox.c:
61     bug 42048 -- Fixed the lstat/errno conditions for mkdir <caleb@g.o>.
62     Added the 64/32 bit sandbox patch for AMD64 bug 32963 <brad/azarah>.
63    
64     29 Feb 2004; Martin Schlemmer <azarah@gentoo.org> sandbox.c, sandbox_futils.c :
65     Fix permissions and group of pids file and logs. Permissions should be 0664
66     and group should be 'portage'. Bug #34260.
67    
68     28 Feb 2004; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
69     Besides a small cleanup, redo how we replace LD_PRELOAD in the environ passed
70     to the real execve (in our execve wrapper). Seems that on some arches (sparc
71     among others) do not allow us to tamper with the readonly copy passed to
72     execve, so pass our own copy of the environment. Bug #42290.
73    
74     11 Jan 2004; Nicholas Jones <carpaski@gentoo.org> create-decls:
75     Changed tail to head and added a notice about duration of glibc check.
76    
77     21 Dec 2003; Nicholas Jones <carpaski@gentoo.org> create-decls:
78     Changed the glibc subversion check to use /usr/bin/* instead of /bin/sh
79     as there isn't a guarentee that it is dynamic.
80    
81     02 Nov 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
82     If 'file' passed to before_syscall(const char *func, const char *file) is
83     invalid, we should set errno to ENOENT, and not EINVAL. This should
84     close bug #32238.
85    
86     14 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
87     Fix a bug that occurs mainly on 64bit arch, where the file passed to
88     the functions we wrap, is invalid, and then cause canonicalize to pass
89     garbage to before_syscall(), thanks to great detective work from
90     Andrea Luzzardi <al@sig11.org> (bug #29846).
91    
92     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
93     Add a uClibc detection patch from Peter S. Mazinger <ps.m@gmx.net>.
94    
95     13 Oct 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
96     Fix a bug in libsandbox.c 's checking in the rename wrapper - it basically
97     only checked the destination patch, and not the source, so we could move
98     a protected file to a unprotected directory, and then delete/modify it.
99     Thanks to Andrea Luzzardi (scox) <al@sig11.org>, bug #30992, for this fix.
100    
101     12 Oct 2003; Nicholas Jones <carpaski@gentoo.org> sandbox.c :
102     Added python2.3 to the predict section/variable.
103    
104     28 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, sandbox.c,
105     sandbox.h, sandbox_futils.c :
106     Add support to set the pids file via SANDBOX_PIDS_FILE at startup. If
107     it is not set, it will revert to its old value.
108    
109     27 Sep 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
110     Fix our mkdir wrapper to check if the dir exist, and return EEXIST if so,
111     rather than failing with a violation, bug #29748.
112    
113     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
114     Fix canonicalize() to ignore calls with path = "".
115    
116     27 Jul 2003; Martin Schlemmer <azarah@gentoo.org> getcwd.c, libsandbox.c,
117     sandbox_futils.c, canonicalize.c :
118     Once again coreutils fails, as my systems had 2.5 kernel, the getcwd system
119     call handled strings larger than PATH_MAX (bug #21766). It however does not
120     work the same on 2.4 kernels.
121    
122     To fix, I added the posix implementation of getcwd() (from glibc cvs) that
123     do not need the system call. We use the default getcwd() function via a
124     wrapper (egetcwd), and then lstat the returned path. If lstat fails, it
125     means the current directory was removed, OR that the the system call for
126     getcwd failed (curious is that it do not fail and return NULL or set
127     errno, but rather just truncate the retured directory - usually from the
128     start), and if so, we use the generic getcwd() function (__egetcwd). Note
129     that we do not use the generic version all the time, as it calls lstat()
130     a great number of times, and performance degrade much.
131    
132     29 Jun 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls,
133     libsandbox.c :
134     Make sure SB_PATH_MAX will not wrap. Fix two possible memory leaks.
135    
136     22 Jun 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c, canonicalize.c
137     create-localdecls :
138     When checking path names of files accessed, we need to canonicalize it, else
139     it may be a symlink in a 'write allowed' directory pointing to a file in a
140     directory we should not have write access to.
141    
142     With something like coreutils-5.0, we have two problems:
143     1) One of the tests checks if getcwd() can return a path longer than
144     PATH_MAX. This test then tries to create a dir which even while
145     created local (mkdir("conftest2")), it ends up being resolved with
146     a name that is much larger than PATH_MAX. The problem now is that
147     canonicalize() have undefined behaviour when the path was too long
148     (returned wrongly truncated paths, etc), and pass the wrong path to
149     before_syscall() (causing the bogus sandbox violations).
150     2) The ecanonicalize() function we used, along with the canonicalize()
151     function did not support longer than PATH_MAX. This is partly a
152     cause for 1), but the error checking (rather lack of it) of calls
153     to erealpath() in canonicalize() was the prime reason for 1).
154    
155     As we do not use this canonicalized name to call the function, we resolve this
156     by fixing canonicalize() to do better error checking, and ecanonicalize() as
157     well as all functions in libsandbox.c to use a PATH_MAX of 'PATH_MAX * 2'.
158     While they will resolve paths properly now, and can check if a write/read is
159     allowed, the functions called from the sandboxed environment will still work
160     as expected.
161    
162     This should resolve bug #21766.
163    
164     06 Apr 2003; Martin Schlemmer <azarah@gentoo.org> libsandbox.c :
165     For some reason sandbox fails with a 'open_wr' if you run 'locale -a' under
166     it (bug #16298).
167    
168     Problem is that for some reason locale fopen's locale.alias with mode "rm".
169    
170     -------------------------------------------------------
171     nosferatu root # grep fopen locale.log
172     fopen("/usr/share/locale/locale.alias", "rm"ACCESS DENIED open_wr: /usr/share/locale/locale.alias
173     nosferatu root #
174     --------------------------------------------------------
175    
176     I checked the source of locale, but it have fopen with mode 'r', so
177     not sure where the "rm" mode comes from. Anyhow, changed the check in
178     before_syscall_open_char() to also see mode "rm" as readonly.
179    
180     23 Feb 2003; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
181    
182     Add glibc-2.3 support.
183    
184     22 Feb 2003; Martin Schlemmer <azarah@gentoo.org> sandbox.c :
185    
186     Some /etc/ld.so.preload fixes. Just changed the #if defines to cover all
187     operations releated to preload, as well as only try to modify ld.so.preload
188     if we can. Also modify to write the pid to /tmp/sandboxpids.tmp even when
189     not using ld.so.preload. Fix to not write this instance of sandbox's pid
190     to /tmp/sandboxpids.tmp on exit if this is not the last sandbox running.
191    
192     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> Makefile :
193    
194     Changed the LD to CC for hppa.
195    
196     22 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
197    
198     Killed the previous changes I made.
199    
200     17 Feb 2003; Nicholas Jones <carpaski@gentoo.org> create-localdecls :
201    
202     Added parisc to BROKEN_RTLD_ARCHLIST to see if it we can fix the relocation probs.
203    
204     09 Jan 2003; J Robert Ray <jrray@gentoo.org> sandbox.c :
205    
206     Don't segfault if $HOME isn't set, set $HOME to "/" instead. Fixes bug 10868.
207    
208     16 Dec 2002; Martin Schlemmer <azarah@gentoo.org> create-localdecls :
209    
210     Fix memory leak for mips, bug #12236. Thanks to Torgeir Hansen <torgeir@trenger.ro>
211     for this fix.
212    
213     4 Dec 2002; J Robert Ray <jrray@gentoo.org> sandbox.h sandbox_futils.c :
214    
215     sandbox_futils defined a dirname() function that was masking the same
216     function in glibc and was broken (e.g.: SANDBOX_DIR was being set to
217     '/usr/lib/portage/bi/'). Fixed function to return expected results and
218     renamed it to sb_dirname() to no longer mask the glibc function. Closes bug
219     11231.
220    
221     4 Dec 2002; Martin Schlemmer <azarah@gentoo.org> :
222    
223     Fix a segfault in libsandbox.c if canonicalize() was called with
224     first parameter = NULL.
225    
226     1 Sep 2002; Martin Schlemmer <azarah@gentoo.org> :
227    
228     Fix my braindead 'return 1;' in a void function. Updated sandbox.c,
229     cleanup() for this.
230    
231     Change cleanup() in sandbox.c not to exit with fail status if
232     the pidsfile is missing. We really should still display sandbox
233     violations if they occured.
234    
235     31 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
236    
237     Update cleanup() in sandbox.c to remove the PIDSFILE if this is
238     the last sandbox running.
239    
240     25 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
241    
242     Major cleanups to mainly libsandbox.c again.
243    
244     22 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
245    
246     Add copyrights to sandbox.h and sandbox_futils.h. If wrong, the
247     parties involved should please contact me so that we can fix it.
248    
249     Add opendir wrapper to libsandbox.c.
250    
251     21 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
252    
253     Do some more cleanups to ecanonicalize(), as it dropped filenames in
254     rare cases (after my symlink cleanups), and caused glibc to bork.
255     These fixes went into canonicalize.c.
256    
257     20 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
258    
259     Fix spawn_shell() and main() in sandbox.c to properly return fail
260     status.
261    
262     19 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
263    
264     The new canonicalize() function in libsandbox.c also resolved symlinks,
265     which caused on cleaning sandbox errors if the symlink pointed to a
266     file in the live root. Ripped out canonicalize() and realpath() from
267     glibc; removed the symlink stuff, and changed them to ecanonicalize()
268     and erealpath().
269    
270     18 Aug 2002; Martin Schlemmer <azarah@gentoo.org> :
271    
272     Ripped out all the wrappers, and implemented those of InstallWatch.
273     Losts of cleanups and bugfixes. Implement a execve that forces
274     $LIBSANDBOX in $LD_PRELOAD. We can now thus do away with the feared
275     /etc/ld.so.preload (*g*) ... Made the needed changes to sandbox.c,
276     sandbox.h and sandbox_futils.c. Rewrote the Makefile for most
277     parts; it now have an install target.
278    
279     Reformat the whole thing to look somewhat like the reworked sandbox.c
280     and new sandbox.h and sandbox_futils.c from:
281    
282     Brad House <brad@mainstreetsoftworks.com>.
283    
284     Additional Copyrights now due to the InstallWatch code:
285    
286     Copyright (C) 1998-9 Pancrazio `Ezio' de Mauro <p@demauro.net>

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