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: 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".

dhcp: make DHCP_OPTION_* enum public libsystemd-network provides the public function sd_dhcp_client_set_request_option() to enable the request of a given DHCP option. However the enum defining such options is defined in the internal header dhcp-protocol.h. Move the enum definition to the public header sd-dhcp-client.h and properly namespace values.

dhcp: export routes as opaque objects At the moment sd_dhcp_lease_get_routes() returns an array of structs which are not defined in public headers. Instead, change the function to return an array of pointers to opaque sd_dhcp_route objects.

networkd: dhcp4 - dirty link when the lease changes Without this commit, we risk not picking up DNS addresses as soon as they are available.

networkd: dhcp4 - style fixes

networkd: link - (de)serialize IPv4LL and DHCPv4 addresses This initializes the clients to try rebinding the preexisting addresses before doing anything else.

networkd: route - clean up confusion between 'metric' and 'priority' Different tools use different terms for the same concept, let's try to stick with 'priority', as that is what the netlink API uses.

networkd: route - rename fields in struct

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

networkd: route - simplify route_new()

networkd: address - merge _change() into _configure() These functions are almost entirely the same, so avoid duplication.

networkd: address - factor out address_update() Call back into link_check_ready() whenever an address state change may have made a link ready.

networkd: link - only consider configured when all addresses are ready We were considering a link configured whilst its IPv6 addresses were still tentative. Fixes issue #650.

networkd: make address_{establish,release}() static No need to expose these functions, but rather call them from address_{add,drop}.

networkd: address - process in manager.c rather than link.c

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

sd-dhcp: fix namespacing Prefix all constants with SD_DHCP_CLIENT_* to avoid namespacing conflicts.

networkd: adjust error codes for nonexisting DHCP data Commit 0339cd770 changed libsystemd-network's error code for missing DHCP lease data from ENOENT to ENODATA. Adjust networkd accordingly. This fixes interfaces being stuck in "degraded/configuring" mode forever. https://github.com/systemd/systemd/issues/1147

networkd: port many log messages over to newer logging API Let's drop some strerror() invocations, and make use of the easier to use newer logging APIs.

networkd: properly reset transient hostname when we lose a DHCP lease Previously we were setting the transient hostname again, rather than resetting it.

networkd: optionally push dhcp timezone into timedated

networkd: fix indentation

dhcp: NTP servers should be requested by networkd but not implicitly by sd-dhcp The library so far always requested the NTP servers. This might be unnecessary in some uses, hence let's move the request into networkd instead.

dhcp,network: implement RFC 4833 (DHCP Timezone option) This one is simply to add: encode the tzdata timezone in the DHCP options and optionally make use of it.

sd-dhcp: don't randomly ref objects In our API design, getter-functions don't ref objects. Calls like foo_get_bar() will not ref 'bar'. We never do that and there is no real reason to do it in single threaded APIs. If you need a ref-count, you better take it yourself *BEFORE* doing anything else on the parent object (as this might invalidate your pointer). Right now, sd_dhcp?_get_lease() refs the lease it returns. A lot of code-paths in systemd do not expect this and thus leak the lease reference. Fix this by changing the API to not ref returned objects.

tree-wide: fix indentation

networkd: fix neworkd crash fix issue #827 hostname should be init to NULL.

networkd: DHCP override hostname This patch enhances the DHCP client to send the hostname reference http://lists.freedesktop.org/archives/systemd-devel/2014-July/021550.html Tested with Example conf: [Match] Name=eth1 [Network] DHCP=v4 [DHCP] SendHostname=true Hostname=test

sd-netlink: rename from sd-rtnl

networkd: actually always use AddressFamilyBoolean as the bit mask it is

util: split all hostname related calls into hostname-util.c

core,network: major per-object logging rework This changes log_unit_info() (and friends) to take a real Unit* object insted of just a unit name as parameter. The call will now prefix all logged messages with the unit name, thus allowing the unit name to be dropped from the various passed romat strings, simplifying invocations drastically, and unifying log output across messages. Also, UNIT= vs. USER_UNIT= is now derived from the Manager object attached to the Unit object, instead of getpid(). This has the benefit of correcting the field for --test runs. Also contains a couple of other logging improvements: - Drops a couple of strerror() invocations in favour of using %m. - Not only .mount units now warn if a symlinks exist for the mount point already, .automount units do that too, now. - A few invocations of log_struct() that didn't actually pass any additional structured data have been replaced by simpler invocations of log_unit_info() and friends. - For structured data a new LOG_UNIT_MESSAGE() macro has been added, that works like LOG_MESSAGE() but prefixes the message with the unit name. Similar, there's now LOG_LINK_MESSAGE() and LOG_NETDEV_MESSAGE(). - For structured data new LOG_UNIT_ID(), LOG_LINK_INTERFACE(), LOG_NETDEV_INTERFACE() macros have been added that generate the necessary per object fields. The old log_unit_struct() call has been removed in favour of these new macros used in raw log_struct() invocations. In addition to removing one more function call this allows generated structured log messages that contain two object fields, as necessary for example for network interfaces that are joined into another network interface, and whose messages shall be indexed by both. - The LOG_ERRNO() macro has been removed, in favour of log_struct_errno(). The latter has the benefit of ensuring that %m in format strings is properly resolved to the specified error number. - A number of logging messages have been converted to use log_unit_info() instead of log_info() - The client code in sysv-generator no longer #includes core code from src/core/. - log_unit_full_errno() has been removed, log_unit_full() instead takes an errno now, too. - log_unit_info(), log_link_info(), log_netdev_info() and friends, now avoid double evaluation of their parameters

networkd: Make DHCP client ID creation configurable

networkd: introduce an AddressFamilyBoolean enum type This introduces am AddressFamilyBoolean type that works more or less like a booleaan, but can optionally turn on/off things for ipv4 and ipv6 independently. THis also ports the DHCP field over to it.

networkd: manager - enumerate addresses globally, rather than per-link The kernel always returns all addresses, rather than only for the given link, so let's only enumerate once.

networkd: update logging macros for parameter order, and errno, to match rest of the code

log: rearrange log function naming - Rename log_meta() → log_internal(), to follow naming scheme of most other log functions that are usually invoked through macros, but never directly. - Rename log_info_object() to log_object_info(), simply because the object should be before any other parameters, to follow OO-style programming style.

sd-dhcp-client: support non-Ethernet hardware addresses Like Infiniband. See RFC 4390 section 2.1 for details on DHCP and Infiniband; chaddr is zeroed, hlen is set to 0, and htype is set to ARPHRD_INFINIBAND because IB hardware addresses are 20 bytes in length.

networkd: dhcp4 - fix unchecked return value Found by coverity. CID #1237529 and #1237528.

networkd: allow specification of DHCP route metric This lets the routing metric for links to be specified per-network, still defaulting to DHCP_ROUTE_METRIC (1024) if unspecified. Hopefully this helps with multiple interfaces configured via DHCP.

networkd: add preferred source to dhcp4 gateway route This makes DHCPv4 and IPv4LL coexist peacefully. [tomegun: apply to both the dhcp routes, use in_addr_is_null() rather than a separate variable to indicate when prefsrc should be applied]

networkd: dhcp4 - fix copy-paste error Reported by poma.

networkd: link - split out dhcp4 handling