Bug fix to ensure that a User-Agent string can be specified when the
fwknop client uses wget via SSL to resolve the external IP address. This
closes issue #134 on github reported by Barry Allard. The fwknop now
uses the wget '-U' option to specify the User-Agent string with a
default of "Fwknop/<version>". In addition, a new command line argument
"--use-wget-user-agent" to allow the default wget User-Agent string to
apply instead.
External IP resolution via '-R' (or '--resolve-ip-http') is now done via SSL by
default. The IP resolution URL is now 'https://www.cipherdyne.org/cgi-gin/myip',
and a warning is generated in '-R' mode whenever a non-HTTPS URL is specified
(it is safer just to use the default). The fwknop client leverages 'wget' for
this operation since that is cleaner than having fwknop link against an SSL
library.
When validating access.conf stanzas make sure that one of
GPG_REMOTE_ID or GPG_FINGERPRINT_ID is specified whenever GnuPG
signatures are to be verified for incoming SPA packets. Signature
verification is the default, and can only be disabled with
GPG_DISABLE_SIG but this is NOT recommended.
Add a new GPG_FINGERPRINT_ID variable to the access.conf file
so that full GnuPG fingerprints can be required for incoming SPA packets
in addition to the appreviated GnuPG signatures listed in GPG_REMOTE_ID.
From the test suite, an example fingerprint is
GPG_FINGERPRINT_ID 00CC95F05BC146B6AC4038C9E36F443C6A3FAD56
This is a significant commit to add the ability to leverage libfko fault
injections from both the fwknop client and server command lines via a
new option '--fault-injection-tag <tag name>'. This option is used by
the test suite with the tests/fault_injection.pl tests.
This commit adds support for diff'ing before and after gcov/lcov results
to see when new function/line coverage is added by the test suite. Here
is an example of its output:
Sun Jun 1 22:28:00 2014 CMD: ./coverage_diff.py
[+] Coverage: /home/mbr/git/fwknop.git/server/config_init.c
[+] new 'fcns' coverage: usage()
[+] new 'lines' coverage: 1015
[+] new 'lines' coverage: 1017
[+] new 'lines' coverage: 1019
[+] new 'lines' coverage: 1059
[+] new 'lines' coverage: 979
[+] Coverage: /home/mbr/git/fwknop.git/server/fw_util_iptables.c
[+] new 'lines' coverage: 560
[+] new 'lines' coverage: 561
