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Sat Dec 13 08:19:38 2014 UTC (6 years, 11 months ago) by davidg
File size: 17822 byte(s)
Add changelog and bump version

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 2761 Changes in 3.0.15-1
9     ----------------------
10     * Fixed issues resulting in undefined attribute values to be returned for CRL
11    
12 davidg 2715 Changes in 3.0.14-1
13     ----------------------
14     * Requesting CRL retrieval for an empty trust anchor store is now a warning
15     and no longer an error
16    
17 davidg 2690 Changes in 3.0.13-1
18     ----------------------
19     * Supplied system init script for boot phase will not re-run inadvertently
20 davidg 2693 * Add rcmode config option (added differentiated reporting and success-on-
21     solely-retrieval-errors)
22     * Add --define key=val command line argument to augment configuration data
23 davidg 2694 * Setting FETCHCRL_OPTIONS in /etc/sysconfig/fetch-crl will add these
24     options to the commandline of fetch-crl on start from cron or at boot time
25     Setting FETCHCRL_BOOT_OPTIONS adds them to the boot init script only
26     (e.g. FETCHCRLBOOTOPTIONS="--define rcmode=differentiated")
27     and FETCHCRL_CRON_OPTIONS does the same only for the cron job script
28 davidg 2690
29 davidg 2672 Changes in 3.0.12-1
30     ----------------------
31     * PEM formatted CRLs now always include a final newline character (fix
32     provided by Harald Barth <haba@kth.se>)
33    
34 davidg 2639 Changes in 3.0.11-1
35     ----------------------
36     * Added reference to /etc/fetch-crl.d/ to the man page, used shortened URL
37     to full documentation in man page
38 davidg 2648 * Added version information to help output and added -V option
39     * Added a dangerous clean-crl script to remove stale .r* files (beware!)
40 davidg 2639
41 davidg 2608 Changes in 3.0.10-1
42     ----------------------
43     * Added a "noquiet" option in the configuration file that will override
44     the default single "-q" option in the cro-job that is shipped with
45     the fetch-crl3 init scripts (feature request by Ryan Taylor)
46     * Added option "--inet6glue" and "inet6glue" config setting to load
47 davidg 2609 the Net::INET6Glue perl module (if it is available) to use IPv6
48 davidg 2608 connections in LWP to download CRLs
49    
50 davidg 2433 Changes in 3.0.8-1
51     ----------------------
52     * Trust anchor name inferrence based on retrieved-CRL added as option (at cost
53     of retrieving CRL even if there is no accompanying trust anchor found later)
54     Option is disabled by default, but can be enabled by using @HASH@ in the
55     ca-template name list. (feature request by Rob van der Wal, SARA, NL)
56    
57 davidg 2305 Changes in 3.0.7-1
58     ----------------------
59     * CRL modofication time heuristic inadvertently modified file name templates
60     (solves issue kindly reported by Elan Ruusamae)
61     * Expanded representation of tokenisation characters in strings to work
62     around bug in file(1) (rhbz#699546, works around RedHat Bugzilla 699548)
63    
64 davidg 2233 Changes in 3.0.6-1
65     ----------------------
66     * Response parsing disabled to suppress superfluous warning on unexpected
67     UTF-8 respons when retrieving a CRL (solves RedHat Bugzilla 688902)
68    
69 davidg 2188 Changes in 3.0.5-1
70     ----------------------
71     * CRLs for multiple similarly-named trust anchors might not all be downloaded.
72     This is fixed in this release.
73     * Spurious "restoreLogMode" internal errors are no longer raised
74    
75 davidg 2085 Changes in 3.0.4-1
76     ----------------------
77     * Add support for directory based drop-in configuration in /etc/fetch-crl.d/
78     * Only use cached CRL contents if the nextUpdate time of the cached CRL is
79     still in the future. This will ensure that a new download is attempted
80     each and everytime for CRLs that have already expired.
81    
82 davidg 1924 Changes in 3.0.3-1
83     ----------------------
84     * Clean up of man page format macro PU (reported by Mattias Ellert)
85    
86 davidg 1922 Changes in 3.0.2-1
87     ----------------------
88     * Clean up of man page format macro PU (reported by Mattias Ellert)
89    
90 davidg 1901 Changes in 3.0.1-1
91     ----------------------
92     * hunts through more places to find the latest successful CRL download to
93     set the latest local modification time for a CRL
94     (resolves a comparison error in case output and infodir are unset)
95    
96 davidg 1878 Changes in 3.0.0-0.RC4
97     ----------------------
98     * the config file name has changed to fetch-crl.conf, although a
99     fetch-crl.cnf file will also be used when present
100     * symlinked meta-data files can be ignored with the --nosymlinks option
101     (or nosymlinks in the configuration file). This allows fetch-crl to be
102     used effectively with new-format IGTF distribution before 1.37
103     * infinite loop for non-indexed CA file names fixed
104    
105 davidg 1758 Changes in fetch-crl 3.0
106     ------------------------
107     * fetch-crl 3.0 is a complete re-write, and shares no code with the 1.x and
108     2.x series utility of the same name, although the function and some of
109     the syntax is obviously the same
110    
111     * support for multiple output formats: OpenSSL 1 in dual-hash mode, specific
112     DER and PEM outputs, and NSS databases
113     * support for multiple CRLs for a single CA, allowing more than one CA with
114     the same subject name but different CLRs. Review your client software to see
115     if and how these CRLs are used.
116     * stateful retrieval helps reduce bandwidth usage by caching the CRLs locally
117     and respecting the Cache Control headers sent by the web server hosting the
118     CRL. This can reduce the number of downloads
119     * support for HEAD-only requests when state preservation is used (initially
120     only retrieve HTTP headers, and only if the CRL actually changed to a full
121     download)
122     * support for more CRL retrieval protocols (file:// and ftp://)
123     * ability to try site-local URLs first, before relying on the URLs shipped with
124     the trust anchor. This allows building an explicit local caching (web) server.
125     * ability to specify additional URLs to try in case the URLs shipped with the
126     trust anchor were not responsive. This allows for automatic fall-back to
127     (local or global) mirror services for CRL downloads
128     * warnings and errors can be suppressed on a per-trust anchor basis, to allow
129     silencing for particularly unstable trust anchors
130     * aging tolerance (the delay time before errors are generated in case downloads
131     consistently fail) can be configured on a per-trust anchor basis
132     * parallel downloading for multiple trust anchors
133     * minimized use of temporary files in the file system (now limited to the
134     invocation of OpenSSL only, and only for brief periods of time)
135     * dependencies on wget, lynx and other unix utilities have been removed
136     * explicit web proxy support (using LWP http proxies)
137     * completely re-written in perl, with some (hopefully minimal) dependencies:
138     LWP, Sys::Syslog, POSIX. And Data::Dumper (when debugging is enabled),
139     and IO::Select (if parallel downloads are enabled).
140    
141     Differences with respect to the previous versions
142    
143     * when downloading CRLs via https, the server certificate is not checked,
144     neither for the correct DNS name nor for being issued by a valid CA. Since
145     the CRL in itself is signed, this is not a security vulnerability. If
146     stricter checking is anyway desired, and the Crypt::SSLeay perl module has
147     been installed, set the HTTPS_CA_FILE environment variable before invoking
148     fetch-crl -- but keep in mind that the DNS name verification is limited
149     and will (incorrectly) reject DNS names if these are listed only in the
150     subjectAlternativeName of the server certificate
151     * Existing files with a name that matches a CRL target name are overwritten,
152     even if they did not originally contain CRL data. In v2 this was configurable
153     via the FORCE_OVERWRITE configuration setting. In version 3, files are
154     overwritten by default, and this can no longer be configured.
155     * fetch-crl3 will no longer check CA certificates for consistency or validity
156     by themselves, only retrieved CRLs are verified
157    
158     Downsides of the new version
159    
160     * it requires perl5 to be installed (tested with perl 5.8.0 and higher) with
161     libwww-perl, whereas version 2 only required a traditional Bourne shell
162     * requires a version of OpenSSL (0.9.5a or better) to be installed. Needs
163     OpenSSL 1.0.0 (at least beta5) for dual-hash support.
164     * when using parallel downloads, it can only run on pure-POSIX systems
165     * parallelism in combination with the NSS database output format is not tested
166     * Even when only the NSS database output format has been selected, OpenSSL is
167     still needed for verification and processing
168    
169    
170     ==============================================================================
171    
172     The change log below applies to the 1.x and 2.x series fetch-crl and is
173     included for historical purposes only. Fetch-crl3, with which this
174     changes file is being shipped, is a complete re-write of the utility.
175     Although a lot of backwards compatibility has been preserves, there have
176     been significant changes and the information below should NOT be used
177     to infer any behaviour of fetch-crl3.
178    
179     Fetch-crl 1.x and 2.x were released under the EU DataGrid License.
180    
181     Changes in version EGP 2.8.5
182     ----------------------------
183     (2010.06.03)
184    
185     * fetch-crl was occasionally leaving behind {hash}.r0.XXXXXX.r0 files
186     This has been fixed in this release (patch thanks to Jason Smith, BNL)
187     * man page was not compliant to Debian guidelines, this has been fixed
188     (patch thanks to Mattias Ellert, Uppsala University)
189    
190     Changes in version EGP 2.8.4
191     ----------------------------
192     (2010.04.04)
193    
194     * Fixes error when randomWait is not set [RH Bug 579488]
195    
196     Changes in version EGP 2.8.3
197     ----------------------------
198     (2010.03.28)
199    
200     * Preserve SELinux context for CRL files if SElinux status program exists
201     and selinux is enabled (RH bug 577403)
202     * Fix argument parsing on syslog facility specification (RH bug 577387)
203     * Increase granularity of the RandomWait and allow for 0 in -r option
204    
205     Changes in version EGP 2.8.2
206     ----------------------------
207     (2010.03.03)
208    
209     * Improved support for multiple CRL URLs by downloading until a success
210     is achieved, instead of downloading all of them
211     * Imported randomwait patch from Steve Traylen
212    
213     Changes in version EGP 2.8.1
214     ----------------------------
215     (2010.01.26)
216    
217     * The installed CRL file is re-checked for validity to catch file system
218     errors and local disk corruption. When possible, it will try to restore
219     a backup copy. Failures are not subject to aging tolerance.
220    
221     Changes in version EGP 2.8.0
222     ----------------------------
223     (2009.09.22)
224    
225     * The RPM packaging has been overhauled and is now sufficiently conformant
226     to EPEL and FedoraProject guidelines.
227     * New init scripts and a cron job entry have been added to allow management
228     of fetch-crl via the chkconfig mechanism
229    
230     These changes were contributed by Steve Traylen (CERN, Geneva, CH).
231    
232     Changes in version EGP 2.7.0
233     ----------------------------
234     (2009.01.25)
235    
236     * Warnings and errors are now counted. If there are errors in the download
237     or verification process for one or more CRLs, the exit status will be 1;
238     if there are errors in the local setup or in the script invocation, the
239     exit status will be 2.
240     * The installed CRLs no longer have the textual representation of the CRL,
241     but only the PEM data blob, thus reducing IO and memory requirements.
242     * the CRL aging threshold is now set by default to 24 hours. The previous
243     default was 0. The CRL aging threshold is set in the config file using
244     CRL_AGING_THRESHOLD=<xx>, or with the "-a" command-line argument.
245     * Default network timeouts reduced to 10 seconds (was 30) and retries to 2
246     * Added caching and conditional downloading. When CACHEDIR is set, the
247     original downloads are preserved and wget timestamping mode enabled.
248     When the content did not change, only the timestamp on the installed
249     CRL is updated. If SLOPPYCRLHASHES is set, the has is calculated based
250     on the name of the crl_url file, otherwise it is taken from the CRL itself.
251     - The CACHEDIR must be exclusively writable by the user running fetch-crl
252     - Setting CACHEDIR significantly reduced the bandwidth used by fetch-crl
253     * Added RESETPATHMODE setting in sysconfig. It defines whether or not to
254     set re-set $PATH to "/bin:/usr/bin" before start. The search for OpenSSL
255     may be done based on the old path.
256     yes=always replace; searchopenssl=search for openssl first and then reset;
257     no=keep original path, whatever that me be (may be empty if called from cron)
258     Default="yes". This replaces the hard-coded path in the tool!
259     * Hidden "FORCE_OVERWRITE" option now has a regular name. This is backwards-
260     compatible. Set FORCE_OVERWRITE=yes if you want files overwritten that
261     have a CRL-like name and ought to have CRL content, but currently do not.
262     * Addresses gLite Savannah bugs 28418 and 29559. Bug 27023 is partially
263     addressed. Bug 20062 can be remedied with WGET_OPTS arguments.
264     Addresses OSG ticket 4673.
265    
266     Changes in version EGP 2.6.6
267     ----------------------------
268     (2007.09.16)
269     (version 2.5.5 is invalid and was not publicly released)
270    
271     * Added obscure configuration parameter to allow overwriting of
272     arbitrary data files with a downloaded CRL (on request of
273     CERN, see https://savannah.cern.ch/bugs/index.php?29559)
274    
275     Changes in version EGP 2.6.4
276     ----------------------------
277     (2007.08.15)
278    
279     * Expired CA issuer certificate now gives a warning instead of an error
280     with the full verification result message
281     * additional logfile output target can be selected via the configuration file
282     * CRL aging threshold documented in manual page. Errors will now also be
283     generated in the CRL download failed consistently and the current CRL
284     has already expired
285    
286     Changes in version EGP 2.6.3
287     ----------------------------
288     (2006.11.13)
289    
290     * cron job example: fetch-crl invocation syntax error corrected
291    
292     Changes in version EGP 2.6.2
293     ----------------------------
294     (2006.10.27)
295    
296     * fixed bug: older wget versions do not recognise --no-check-certificate
297    
298     Changes in version EGP 2.6.1
299     ----------------------------
300     (2006.10.25)
301    
302     * fixed local timezone vs UTC error in LastUpdate CRL validation comparison
303     * fixed time comparison is the one-hour LastUpdate/download tolerance
304     (both fixes thanks to Alain Roy)
305     * added support for directory names containing whitespace
306     * added support for syslog reporting (via -f option or SYSLOGFACILITY directive)
307     * SERVERCERTCHECK=no is now the default. It can be reset via the configuration
308     file, or using the "--check-server-certificate" commandline option
309     * the main configuration file location (formerly fixed to be
310     /etc/sysconfig/fetch-crl) can now be set via the variable $FETCH_CRL_SYSCONFIG
311     * logfile format timestamp and tag have been normalised
312    
313     Changes in version EGP 2.6
314     --------------------------
315     (2006.05.20)
316    
317     * if the current local CRL has a lastUpdate time in the future, and the
318     newly downloaded CRL is older that the current one, allow the installation
319     of the newly downloaded CRL and issue a warning.
320     * added non-suppressable warning in case the newly downloaded CRL has a
321     lastUpdate time in the future, but install that CRL anyway (as the local
322     clock might have been wrong).
323    
324     Changes in version EGP 2.5
325     --------------------------
326     (2006.01.16)
327    
328     * added additional configuration arguments and configuration variables
329     to skip the server certificate check in wget
330     (to support https:// URLs where the server is authenticated with
331     a certificate that is not part of it's own trusted domain, such as
332     the KISTI URL)
333    
334     Changes in version EGP 2.4
335     --------------------------
336     (2005.11.15)
337    
338     * for those platforms that support the stat(1) command, and in case the
339     .crl_url file is named after the hash of the crl subject name to download,
340     error eporting for individual download errors can be suppressed for
341     a configurable amount of time as set via the "-a" option (unit: hours).
342    
343     Changes in version EGP 2.3
344     --------------------------
345     (2005.11.05)
346    
347     * do not replace recent CRLs with ones that have an older lastUpdate
348     timestamp (prevents ARP/DNS DoS attacks)
349    
350     Changes in version EGP 2.2
351     --------------------------
352     (2005.10.27)
353    
354     * secure http download by wget recognise the CAs in the trusted directory.
355     solves the issue described in the LCG bug tracking system
356     https://savannah.cern.ch/bugs/index.php?func=detailitem&item_id=12182
357    
358     Changes in version EGP 2.1
359     --------------------------
360     (2005.08.12)
361     * specifically look for the most recent version of OpenSSL. The
362     one in GLOBUS_LOCATION (which used to take precedence in the
363     previous releases) is outdated in many cases and caused
364     troubles on the LCG production systems in validating v2 CRLs
365     * added manual page fetch-crl(8)
366    
367     Changes in version EGP 2.0
368     --------------------------
369     (2005.02.28)
370     * name of the installed script changed to "fetch-crl"
371     * the cronjob script is no longer installed by default, but supplied
372     as an example in the %doc directory
373     * RPM is now relocatable (default install in /usr)
374     * READMA and CHANGES file now inclued in %doc tree
375     * make install now installs
376     * version increased to 2.0
377    
378     Changes in version EGP 1.9
379     --------------------------
380     (2005.02.24)
381     * the content of the final target CRL file is now checked for
382     containing a valid CRL if it already exists. If it does not
383     contain a CRL, an error is displayed and the file left untouched
384     So making the final ".r0" file in ${outdir} a link to something else
385     will not work, preventing an escalation in the final stage.
386    
387     Changes in version EGP 1.8
388     --------------------------
389     (changes from Fabio's version 1.7, 2005.02.24)
390    
391     * All temporary files (the initial CRL download using wget
392     and the PEM-converted version of that file) are now created using
393     mktemp
394     * the RetrieveFileByURL function will not overwrite files that
395     have any data in them
396     * Note that the script can be run by a non-priviledged user, but
397     that the output directory must be made writable by that user
398     in an out-of-band way.
399    
400     EDG version 1.7
401     ---------------
402     Imported with consent of Fabio Hernandez and Steve Traylen from
403     the original EDG repository.
404     The EU DataGrid License applies, see http://www.eu-datagrid.org/

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