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.

tree-wide: sort includes Sort the includes accoding to the new coding style.

util-lib: split out allocation calls into alloc-util.[ch]

networkd: address - add hash helpers for Address objects Add compare_func and hash_func for the Address object. The notion of address equality is the same as in the kernel, and hashing preserves preserves equality. Two addresses are considered equal if: - they have the same address family, and - they are neither IPv4 nor IPv6 addresses, or - the local addresses are identical, and - they are IPv6 addresses, or - they have the same prefixlength, and - their peer prefixes are identical This fixes a bug in the old equality check, which got the local address and the peer prefix mixed up.

networkd: route/address - simplify and unify creators Rename new_dynamic() to simply _new() and reuse that from new_static().

networkd: refactor socket activation a bit

network-address,test-network: avoid undefined behaviour

test-network: fix off-by-one error in test

sd-network: remove redundant array size parameter from functions that return arrays As long as the number of array entries is relatively small it's nicer to simply return the number of entries directly, instead of using a size_t* return parameter for it.

test: network - skip if we don't have permissions to create netdevs

Add support for DHCP static route options This adds support for DHCP options 33 and 121: Static Route and Classless Static Route. To enable this feature, set UseRoutes=true in .network file. Returned routes are added to the routing table.

sd-dhcp-lease: move in_addr (de)serialization to shared network code

networkd: IP address equality

networkd: tie links to rtnl rather than udev This essentially swaps the roles of rtnl and udev in networkd. After this change libudev is only used for waiting for udev to initialize devices and to get udev-specific information needed for some [Match] attributes. This in particular simplifies the code in containers where udev is not really useful, but also simplifies things and reduces round-trips in the non-container case.

networkd: handle SIGINT and SIGTERM

test: always use assert_se in tests

networkd: add bridge support A bridge is specified in a .netdev file with a section [Bridge] and at least the entry Name=. A link may be joined to a bridge if the .network applied to it has a Bridge= entry giving the name of the bridge in its [Network] section. We eagerly create all bridges on startup, and links are added to bridges as soon as they both appear.

networkd: make sure Links and Networks are freed

networkd: make all calls async

network: fix tests One of the tests were assuming the network configuration dirs exist. We can't do that, so disable it for now.

networkd: add a basic network daemon This daemon listens for and configures network devices tagged with 'systemd-networkd'. By default, no devices are tagged so this daemon can safely run in parallel with existing network daemons/scripts. Networks are configured in /etc/systemd/network/*.network. The first .network file that matches a given link is applied. The matching logic is similar to the one for .link files, but additionally supports matching on interface name. The mid-term aim is to provide an alternative to ad-hoc scripts currently used in initrd's and for wired setups that don't change much (e.g., as seen on servers/and some embedded systems). Currently, static addresses and a gateway can be configured. Example .network file: [Match] Name=wlp2s0 [Network] Description=My Network Gateway=192.168.1.1 Address=192.168.1.23/24 Address=fe80::9aee:94ff:fe3f:c618/64