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Revision 2648 - (hide annotations) (download)
Tue Jul 2 18:52:29 2013 UTC (8 years, 3 months ago) by davidg
File size: 16750 byte(s)
Added clean-crl to packaging

1 davidg 1758 ==============================================================================
2     CHANGES to fetch-crl - the Certificate Revocation List retrieval tool
3     ==============================================================================
4     The fetch-crl utility will retrieve certificate revocation lists (CRLs) for
5     a set of installed trust anchors, based on crl_url files or IGTF-style info
6     files. It will install these for use with OpenSSL, NSS or third-party tools.
7    
8 davidg 2639 Changes in 3.0.11-1
9     ----------------------
10     * Added reference to /etc/fetch-crl.d/ to the man page, used shortened URL
11     to full documentation in man page
12 davidg 2648 * Added version information to help output and added -V option
13     * Added a dangerous clean-crl script to remove stale .r* files (beware!)
14 davidg 2639
15 davidg 2608 Changes in 3.0.10-1
16     ----------------------
17     * Added a "noquiet" option in the configuration file that will override
18     the default single "-q" option in the cro-job that is shipped with
19     the fetch-crl3 init scripts (feature request by Ryan Taylor)
20     * Added option "--inet6glue" and "inet6glue" config setting to load
21 davidg 2609 the Net::INET6Glue perl module (if it is available) to use IPv6
22 davidg 2608 connections in LWP to download CRLs
23    
24 davidg 2433 Changes in 3.0.8-1
25     ----------------------
26     * Trust anchor name inferrence based on retrieved-CRL added as option (at cost
27     of retrieving CRL even if there is no accompanying trust anchor found later)
28     Option is disabled by default, but can be enabled by using @HASH@ in the
29     ca-template name list. (feature request by Rob van der Wal, SARA, NL)
30    
31 davidg 2305 Changes in 3.0.7-1
32     ----------------------
33     * CRL modofication time heuristic inadvertently modified file name templates
34     (solves issue kindly reported by Elan Ruusamae)
35     * Expanded representation of tokenisation characters in strings to work
36     around bug in file(1) (rhbz#699546, works around RedHat Bugzilla 699548)
37    
38 davidg 2233 Changes in 3.0.6-1
39     ----------------------
40     * Response parsing disabled to suppress superfluous warning on unexpected
41     UTF-8 respons when retrieving a CRL (solves RedHat Bugzilla 688902)
42    
43 davidg 2188 Changes in 3.0.5-1
44     ----------------------
45     * CRLs for multiple similarly-named trust anchors might not all be downloaded.
46     This is fixed in this release.
47     * Spurious "restoreLogMode" internal errors are no longer raised
48    
49 davidg 2085 Changes in 3.0.4-1
50     ----------------------
51     * Add support for directory based drop-in configuration in /etc/fetch-crl.d/
52     * Only use cached CRL contents if the nextUpdate time of the cached CRL is
53     still in the future. This will ensure that a new download is attempted
54     each and everytime for CRLs that have already expired.
55    
56 davidg 1924 Changes in 3.0.3-1
57     ----------------------
58     * Clean up of man page format macro PU (reported by Mattias Ellert)
59    
60 davidg 1922 Changes in 3.0.2-1
61     ----------------------
62     * Clean up of man page format macro PU (reported by Mattias Ellert)
63    
64 davidg 1901 Changes in 3.0.1-1
65     ----------------------
66     * hunts through more places to find the latest successful CRL download to
67     set the latest local modification time for a CRL
68     (resolves a comparison error in case output and infodir are unset)
69    
70 davidg 1878 Changes in 3.0.0-0.RC4
71     ----------------------
72     * the config file name has changed to fetch-crl.conf, although a
73     fetch-crl.cnf file will also be used when present
74     * symlinked meta-data files can be ignored with the --nosymlinks option
75     (or nosymlinks in the configuration file). This allows fetch-crl to be
76     used effectively with new-format IGTF distribution before 1.37
77     * infinite loop for non-indexed CA file names fixed
78    
79 davidg 1758 Changes in fetch-crl 3.0
80     ------------------------
81     * fetch-crl 3.0 is a complete re-write, and shares no code with the 1.x and
82     2.x series utility of the same name, although the function and some of
83     the syntax is obviously the same
84    
85     * support for multiple output formats: OpenSSL 1 in dual-hash mode, specific
86     DER and PEM outputs, and NSS databases
87     * support for multiple CRLs for a single CA, allowing more than one CA with
88     the same subject name but different CLRs. Review your client software to see
89     if and how these CRLs are used.
90     * stateful retrieval helps reduce bandwidth usage by caching the CRLs locally
91     and respecting the Cache Control headers sent by the web server hosting the
92     CRL. This can reduce the number of downloads
93     * support for HEAD-only requests when state preservation is used (initially
94     only retrieve HTTP headers, and only if the CRL actually changed to a full
95     download)
96     * support for more CRL retrieval protocols (file:// and ftp://)
97     * ability to try site-local URLs first, before relying on the URLs shipped with
98     the trust anchor. This allows building an explicit local caching (web) server.
99     * ability to specify additional URLs to try in case the URLs shipped with the
100     trust anchor were not responsive. This allows for automatic fall-back to
101     (local or global) mirror services for CRL downloads
102     * warnings and errors can be suppressed on a per-trust anchor basis, to allow
103     silencing for particularly unstable trust anchors
104     * aging tolerance (the delay time before errors are generated in case downloads
105     consistently fail) can be configured on a per-trust anchor basis
106     * parallel downloading for multiple trust anchors
107     * minimized use of temporary files in the file system (now limited to the
108     invocation of OpenSSL only, and only for brief periods of time)
109     * dependencies on wget, lynx and other unix utilities have been removed
110     * explicit web proxy support (using LWP http proxies)
111     * completely re-written in perl, with some (hopefully minimal) dependencies:
112     LWP, Sys::Syslog, POSIX. And Data::Dumper (when debugging is enabled),
113     and IO::Select (if parallel downloads are enabled).
114    
115     Differences with respect to the previous versions
116    
117     * when downloading CRLs via https, the server certificate is not checked,
118     neither for the correct DNS name nor for being issued by a valid CA. Since
119     the CRL in itself is signed, this is not a security vulnerability. If
120     stricter checking is anyway desired, and the Crypt::SSLeay perl module has
121     been installed, set the HTTPS_CA_FILE environment variable before invoking
122     fetch-crl -- but keep in mind that the DNS name verification is limited
123     and will (incorrectly) reject DNS names if these are listed only in the
124     subjectAlternativeName of the server certificate
125     * Existing files with a name that matches a CRL target name are overwritten,
126     even if they did not originally contain CRL data. In v2 this was configurable
127     via the FORCE_OVERWRITE configuration setting. In version 3, files are
128     overwritten by default, and this can no longer be configured.
129     * fetch-crl3 will no longer check CA certificates for consistency or validity
130     by themselves, only retrieved CRLs are verified
131    
132     Downsides of the new version
133    
134     * it requires perl5 to be installed (tested with perl 5.8.0 and higher) with
135     libwww-perl, whereas version 2 only required a traditional Bourne shell
136     * requires a version of OpenSSL (0.9.5a or better) to be installed. Needs
137     OpenSSL 1.0.0 (at least beta5) for dual-hash support.
138     * when using parallel downloads, it can only run on pure-POSIX systems
139     * parallelism in combination with the NSS database output format is not tested
140     * Even when only the NSS database output format has been selected, OpenSSL is
141     still needed for verification and processing
142    
143    
144     ==============================================================================
145    
146     The change log below applies to the 1.x and 2.x series fetch-crl and is
147     included for historical purposes only. Fetch-crl3, with which this
148     changes file is being shipped, is a complete re-write of the utility.
149     Although a lot of backwards compatibility has been preserves, there have
150     been significant changes and the information below should NOT be used
151     to infer any behaviour of fetch-crl3.
152    
153     Fetch-crl 1.x and 2.x were released under the EU DataGrid License.
154    
155     Changes in version EGP 2.8.5
156     ----------------------------
157     (2010.06.03)
158    
159     * fetch-crl was occasionally leaving behind {hash}.r0.XXXXXX.r0 files
160     This has been fixed in this release (patch thanks to Jason Smith, BNL)
161     * man page was not compliant to Debian guidelines, this has been fixed
162     (patch thanks to Mattias Ellert, Uppsala University)
163    
164     Changes in version EGP 2.8.4
165     ----------------------------
166     (2010.04.04)
167    
168     * Fixes error when randomWait is not set [RH Bug 579488]
169    
170     Changes in version EGP 2.8.3
171     ----------------------------
172     (2010.03.28)
173    
174     * Preserve SELinux context for CRL files if SElinux status program exists
175     and selinux is enabled (RH bug 577403)
176     * Fix argument parsing on syslog facility specification (RH bug 577387)
177     * Increase granularity of the RandomWait and allow for 0 in -r option
178    
179     Changes in version EGP 2.8.2
180     ----------------------------
181     (2010.03.03)
182    
183     * Improved support for multiple CRL URLs by downloading until a success
184     is achieved, instead of downloading all of them
185     * Imported randomwait patch from Steve Traylen
186    
187     Changes in version EGP 2.8.1
188     ----------------------------
189     (2010.01.26)
190    
191     * The installed CRL file is re-checked for validity to catch file system
192     errors and local disk corruption. When possible, it will try to restore
193     a backup copy. Failures are not subject to aging tolerance.
194    
195     Changes in version EGP 2.8.0
196     ----------------------------
197     (2009.09.22)
198    
199     * The RPM packaging has been overhauled and is now sufficiently conformant
200     to EPEL and FedoraProject guidelines.
201     * New init scripts and a cron job entry have been added to allow management
202     of fetch-crl via the chkconfig mechanism
203    
204     These changes were contributed by Steve Traylen (CERN, Geneva, CH).
205    
206     Changes in version EGP 2.7.0
207     ----------------------------
208     (2009.01.25)
209    
210     * Warnings and errors are now counted. If there are errors in the download
211     or verification process for one or more CRLs, the exit status will be 1;
212     if there are errors in the local setup or in the script invocation, the
213     exit status will be 2.
214     * The installed CRLs no longer have the textual representation of the CRL,
215     but only the PEM data blob, thus reducing IO and memory requirements.
216     * the CRL aging threshold is now set by default to 24 hours. The previous
217     default was 0. The CRL aging threshold is set in the config file using
218     CRL_AGING_THRESHOLD=<xx>, or with the "-a" command-line argument.
219     * Default network timeouts reduced to 10 seconds (was 30) and retries to 2
220     * Added caching and conditional downloading. When CACHEDIR is set, the
221     original downloads are preserved and wget timestamping mode enabled.
222     When the content did not change, only the timestamp on the installed
223     CRL is updated. If SLOPPYCRLHASHES is set, the has is calculated based
224     on the name of the crl_url file, otherwise it is taken from the CRL itself.
225     - The CACHEDIR must be exclusively writable by the user running fetch-crl
226     - Setting CACHEDIR significantly reduced the bandwidth used by fetch-crl
227     * Added RESETPATHMODE setting in sysconfig. It defines whether or not to
228     set re-set $PATH to "/bin:/usr/bin" before start. The search for OpenSSL
229     may be done based on the old path.
230     yes=always replace; searchopenssl=search for openssl first and then reset;
231     no=keep original path, whatever that me be (may be empty if called from cron)
232     Default="yes". This replaces the hard-coded path in the tool!
233     * Hidden "FORCE_OVERWRITE" option now has a regular name. This is backwards-
234     compatible. Set FORCE_OVERWRITE=yes if you want files overwritten that
235     have a CRL-like name and ought to have CRL content, but currently do not.
236     * Addresses gLite Savannah bugs 28418 and 29559. Bug 27023 is partially
237     addressed. Bug 20062 can be remedied with WGET_OPTS arguments.
238     Addresses OSG ticket 4673.
239    
240     Changes in version EGP 2.6.6
241     ----------------------------
242     (2007.09.16)
243     (version 2.5.5 is invalid and was not publicly released)
244    
245     * Added obscure configuration parameter to allow overwriting of
246     arbitrary data files with a downloaded CRL (on request of
247     CERN, see https://savannah.cern.ch/bugs/index.php?29559)
248    
249     Changes in version EGP 2.6.4
250     ----------------------------
251     (2007.08.15)
252    
253     * Expired CA issuer certificate now gives a warning instead of an error
254     with the full verification result message
255     * additional logfile output target can be selected via the configuration file
256     * CRL aging threshold documented in manual page. Errors will now also be
257     generated in the CRL download failed consistently and the current CRL
258     has already expired
259    
260     Changes in version EGP 2.6.3
261     ----------------------------
262     (2006.11.13)
263    
264     * cron job example: fetch-crl invocation syntax error corrected
265    
266     Changes in version EGP 2.6.2
267     ----------------------------
268     (2006.10.27)
269    
270     * fixed bug: older wget versions do not recognise --no-check-certificate
271    
272     Changes in version EGP 2.6.1
273     ----------------------------
274     (2006.10.25)
275    
276     * fixed local timezone vs UTC error in LastUpdate CRL validation comparison
277     * fixed time comparison is the one-hour LastUpdate/download tolerance
278     (both fixes thanks to Alain Roy)
279     * added support for directory names containing whitespace
280     * added support for syslog reporting (via -f option or SYSLOGFACILITY directive)
281     * SERVERCERTCHECK=no is now the default. It can be reset via the configuration
282     file, or using the "--check-server-certificate" commandline option
283     * the main configuration file location (formerly fixed to be
284     /etc/sysconfig/fetch-crl) can now be set via the variable $FETCH_CRL_SYSCONFIG
285     * logfile format timestamp and tag have been normalised
286    
287     Changes in version EGP 2.6
288     --------------------------
289     (2006.05.20)
290    
291     * if the current local CRL has a lastUpdate time in the future, and the
292     newly downloaded CRL is older that the current one, allow the installation
293     of the newly downloaded CRL and issue a warning.
294     * added non-suppressable warning in case the newly downloaded CRL has a
295     lastUpdate time in the future, but install that CRL anyway (as the local
296     clock might have been wrong).
297    
298     Changes in version EGP 2.5
299     --------------------------
300     (2006.01.16)
301    
302     * added additional configuration arguments and configuration variables
303     to skip the server certificate check in wget
304     (to support https:// URLs where the server is authenticated with
305     a certificate that is not part of it's own trusted domain, such as
306     the KISTI URL)
307    
308     Changes in version EGP 2.4
309     --------------------------
310     (2005.11.15)
311    
312     * for those platforms that support the stat(1) command, and in case the
313     .crl_url file is named after the hash of the crl subject name to download,
314     error eporting for individual download errors can be suppressed for
315     a configurable amount of time as set via the "-a" option (unit: hours).
316    
317     Changes in version EGP 2.3
318     --------------------------
319     (2005.11.05)
320    
321     * do not replace recent CRLs with ones that have an older lastUpdate
322     timestamp (prevents ARP/DNS DoS attacks)
323    
324     Changes in version EGP 2.2
325     --------------------------
326     (2005.10.27)
327    
328     * secure http download by wget recognise the CAs in the trusted directory.
329     solves the issue described in the LCG bug tracking system
330     https://savannah.cern.ch/bugs/index.php?func=detailitem&item_id=12182
331    
332     Changes in version EGP 2.1
333     --------------------------
334     (2005.08.12)
335     * specifically look for the most recent version of OpenSSL. The
336     one in GLOBUS_LOCATION (which used to take precedence in the
337     previous releases) is outdated in many cases and caused
338     troubles on the LCG production systems in validating v2 CRLs
339     * added manual page fetch-crl(8)
340    
341     Changes in version EGP 2.0
342     --------------------------
343     (2005.02.28)
344     * name of the installed script changed to "fetch-crl"
345     * the cronjob script is no longer installed by default, but supplied
346     as an example in the %doc directory
347     * RPM is now relocatable (default install in /usr)
348     * READMA and CHANGES file now inclued in %doc tree
349     * make install now installs
350     * version increased to 2.0
351    
352     Changes in version EGP 1.9
353     --------------------------
354     (2005.02.24)
355     * the content of the final target CRL file is now checked for
356     containing a valid CRL if it already exists. If it does not
357     contain a CRL, an error is displayed and the file left untouched
358     So making the final ".r0" file in ${outdir} a link to something else
359     will not work, preventing an escalation in the final stage.
360    
361     Changes in version EGP 1.8
362     --------------------------
363     (changes from Fabio's version 1.7, 2005.02.24)
364    
365     * All temporary files (the initial CRL download using wget
366     and the PEM-converted version of that file) are now created using
367     mktemp
368     * the RetrieveFileByURL function will not overwrite files that
369     have any data in them
370     * Note that the script can be run by a non-priviledged user, but
371     that the output directory must be made writable by that user
372     in an out-of-band way.
373    
374     EDG version 1.7
375     ---------------
376     Imported with consent of Fabio Hernandez and Steve Traylen from
377     the original EDG repository.
378     The EU DataGrid License applies, see http://www.eu-datagrid.org/

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