tree-wide: remove Emacs lines from all files This should be handled fine now by .dir-locals.el, so need to carry that stuff in every file.

networkd: optinally use DHCP lease domain info for routing only This changes the UseDomains= setting of .network files to take an optional third value "route", in addition to the boolean values. If set, the passed domain information is used for routing rules only, but not for the search path logic.

networkd: rename a few Network object properties to be more like the configuration settings All booleans called dhcp_xyz are now called ".dhcp_use_xyz", to match their respective configuration file settings. This should clarify things a bit, in particular as there is a DHCP hostname that was previously called just ".hostname" because ".dhcp_hostname" was already existing as a bool. Since this confusion is removed now because the bool is called ".dhcp_use_hostname", the string field is now renamed to ".dhcp_hostname".

networkd: rework Domains= setting Previously, .network files only knew a vaguely defined "Domains=" concept, for which the documentation declared it was the "DNS domain" for the network connection, without specifying what that means. With this the Domains setting is reworked, so that there are now "routing" domains and "search" domains. The former are to be used by resolved to route DNS request to specific network interfaces, the latter is to be used for searching single-label hostnames with (in addition to being used for routing). Both settings are configured in the "Domains=" setting. Normal domain names listed in it are now considered search domains (for compatibility with existing setups), while those prefixed with "~" are considered routing domains only. To route all lookups to a specific interface the routing domain "." may be used, referring to the root domain. An alternative syntax for this is the "*", as was already implemented before using the "wildcard" domain concept. This commit adds proper parsers for this new logic, and exposes this via the sd-network API. This information is not used by resolved yet, this will be added in a later commit.

resolved: introduce support for per-interface negative trust anchors

resolved,networkd: add a per-interface DNSSEC setting This adds a DNSSEC= setting to .network files, and makes resolved honour them.

networkd,resolved: add a per-interface mdns configuration option

resolved,networkd: unify ResolveSupport enum networkd previously knew an enum "ResolveSupport" for configuring per-interface LLMNR support, resolved had a similar enum just called "Support", with the same value and similar pasers. Unify this, call the enum ResolveSupport, and port both daemons to it.

tree-wide: sort includes in *.h This is a continuation of the previous include sort patch, which only sorted for .c files.

networkd: Add support to configure IPV6 hop limit This patch adds support to configure IPV6 hop limit. For example: /proc/sys/net/ipv6/conf/wlp3s0/hop_limit

networkd: add support for configure IPv6 DAD Configures Ipv6 Duplicate Address Detection. 10

networkd:add support to configure ipv6 acceprt ra This patch support to configure the ipv6 acceprt ra option. for more information see http://www.tldp.org/HOWTO/Linux+IPv6-HOWTO/proc-sys-net-ipv6..html

networkd: dhcp-server - allow configuration of the pool The constraints we place on the pool is that it is a contiguous sequence of addresses in the same subnet as the server address, not including the subnet nor broadcast addresses, but possibly including the server address itself. If the server address is included in the pool it is (obviously) reserved and not handed out to clients.

dhcp,network: support emitting DNS/NTP server information from DHCP server For now, this is very simple and IP addresses have to be configured manually.

networkd: split up networkd.h into per-object header files No functional changes, just moving definitions into separate header files.