[sr-dev] git:master: dns_cache: added support for permanent entries

[Miklos Tirpak]

Module: sip-router
Branch: master
Commit: ec79c28a238fa8e66823161daa7994a679ef56f2
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=ec79c28a238fa8e66823161daa7994a679ef56f2

Author: Miklos Tirpak <miklos at iptel.org>
Committer: Miklos Tirpak <miklos at iptel.org>
Date:   Wed Jun 16 15:49:24 2010 +0200

dns_cache: added support for permanent entries

Permanent entries are intended to be used for management
purposes, i.e. they are useful if there is no DNS server
available for instance. Such entries never expire, and overwrite
any existing entry that was added by the resolver.
They can be added to the cache from modules or over the RPC calls
dns.add_a, dns.add_aaaa and dns.add_srv with the flag value of 2.
(or 3 in case of negative permanent entry)

- err_flags in struct dns_hash_entry is changed to be a general
purpose flag, and renamed to ent_flag.
- DNS_BAD_NAME is renamed to DNS_FLAG_BAD_NAME
- DNS_FLAG_PERMANENT value is added.
- new rpc call to force deleting the permanent entries from the
cache: dns.delete_all_force. (dns.delete_all deletes only
the non-permanent entries.)

---

 core_cmd.c  |   10 ++++-
 dns_cache.c |  143 +++++++++++++++++++++++++++++++++++++++++++----------------
 dns_cache.h |   23 +++++++--
 3 files changed, 131 insertions(+), 45 deletions(-)

Diff:   http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commitdiff;h=ec79c28a238fa8e66823161daa7994a679ef56f2