base-files: change network_find_wan() procedure to ignore default gateways in different routing tables

SVN-Revision: 36553

SVN-Revision: 35300

SVN-Revision: 35287

SVN-Revision: 35286

SVN-Revision: 35168

SVN-Revision: 34733

base-files: rework cache handling in network.sh to keep the entire parsed ifstatus, use jshn namespaces to support using it concurrently with other jshn users

SVN-Revision: 34725

	- support reading inactive gateways and DNS information in
	  network_get_gateway(), network_get_dnsserver() and network_get_dnssearch()
	  by passing "true" as optional last argument
	- internally cache fetched values to speed up subsequent accesses to the same
	  data, introduce network_flush_cache() to clear them
	- add some inline function documentation

SVN-Revision: 34722

SVN-Revision: 33391

base-files: implement network_get_dnsserver() and network_get_dnssearch() in /lib/functions/network.sh

SVN-Revision: 32531

SVN-Revision: 32525

base-files: implement network_get_gateway(), network_get_gateway6(), network_find_wan() and network_find_wan6() in /lib/functions/network.sh

SVN-Revision: 32397

base-files: implement network_defer_device() and network_ready_device() wrappers for upcoming netifd iface deferring support

SVN-Revision: 32106

SVN-Revision: 31978

base-files: let network_get_device() return the l3 interface, introduce network_get_physdev() to obtain the underlying iface (if applicable)

SVN-Revision: 31960

SVN-Revision: 31937

base-files: introduce /lib/functions/network.sh This file will contain common procedures to deal with network interfaces. Initially provides network_get_ipaddr(), network_get_ipaddr6(), network_get_subnet() and network_get_subnet6() to determine the primary IP addresses or subnets of a given logical interface.

SVN-Revision: 31935