removing unlocking/relocking implementation for vnode for auditing path, instead, define separate functions in vfs_cache.c for locked vnode as argument.

Thanks for all suggestions. I have incorporated them into my code. There is just a directory vnode unlocking/relocking issue not done yet.

follow up on changes suggested by asomers@

Please re-review it,
I updated the diff after removing the vnode_mount macro as suggested by Rick.

• correct the IP addresses which were not in the documentation range

• add ipacl entry in tests Makefile
• fix minor issues in mac_ipacl.4

• make tests more structured with atf
• update man page mac_ipacl.4

fix errors shown by mandoc -Tlint for mac_ipacl.4
fix the license and copyrights

Hi, @0mp thanks for the suggestion :).

• move man page to its right place

• Correct the license file for mac_ipacl.c and mac_ipacl.4
• fix Kyua for test shell scripts
• fix errors in mac_ipacl.4 man page

I have a few doubts:

• I'm not clear about the license, should the TrustedBSD be included? if yes, then how? Also, I have copied the sysctl_rules from mac_portacl, Is it infringing any copyright as of now? I've read BSD license is very open, can I mention the mac_portacl?
• should #ifdef INET/INET6 be put in mac_policy.h and mac_framework.h?
• after adding INET/INET6 in mac_ipacl, kyua stopped working for test scripts. It gives errors as "ip4_test:main -> broken: Received signal 6 [0.033s] ip6_test:main -> broken: Received signal 6 [0.032s]" As scripts they are testing fine.

fix style issues
fix copyright issue

add #ifdef INET and #ifdef in INET6
fix indentation and style issues
add mac_ipacl entry in kernel conf and modules Makefile

Add copyright and license.
Add a man page for mac_ipacl

indentation and style changes,
moved subnet check code from rules_check to parser,

correct the diff file