Re: [libvirt] [PATCHv2 3/7] network: backend functions for updating network dns host/srv/txt

These three functions are very similar - none allow a MODIFY operation; you can only add or delete. The biggest difference between them (other than the data itself) is in the criteria for determining a match, and whether or not multiple matches are possible: 1) for HOST records, it's considered a match if the IP address or any of the hostnames of an existing record matches. 2) for SRV records, it's a match if all of domain+service+protocol+target *which have been specified* are matched. 3) for TXT records, there is only a single field to match - name (value can be the same for multiple records, and isn't considered a search term), so by definition there can be no ambiguous matches. In all three cases, if any matches are found, ADD will fail; if multiple matches are found, it means the search term was ambiguous, and a DELETE will fail. The upper level code in bridge_driver.c is already implemented for these functions - appropriate conf files will be re-written, and dnsmasq will be SIGHUPed or restarted as appropriate. --- src/conf/network_conf.c | 240 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 232 insertions(+), 8 deletions(-)