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* treewide: make some functions staticHans Dedecker2018-11-191-1/+1
| | | | Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: gracefully handle device names exceeding IFNAMESIZHans Dedecker2018-08-141-6/+24
| | | | | | | | | | | | Instead of truncating the device name when it exceeds IFNAMSIZ length; let device_set_ifname return an error code and do not add the device to the device list. This avoids possible issues with device names becoming identical due the truncation and as a result unexpected behavior. Further let the different device types gracefully handle the error code returned by device_init Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: add support for setting the isolate options for bridge portsFelix Fietkau2018-03-131-0/+6
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* remove rps/xps configuration supportFelix Fietkau2018-02-261-64/+0
| | | | | | | | It is overly complex, yet does not cover common scenarios very well. It will be replaced with a simpler shell script that provides a better default policy Signed-off-by: Felix Fietkau <nbd@nbd.name>
* interface-ip: harden eui64 IPv6 prefix address generationHans Dedecker2017-12-151-1/+1
| | | | | | | | | | | Check if a mac address is actually present when generating an eui64 based IPv6 address; in case of failure bail out. At the same time make sure the active mac address is used as input for the eui64 based IPv6 address and guarantee IPv6 prefix address generation is based on the actual config by resetting the IPv6 prefix address in the assignment structure when it gets deleted. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* allow setting rps/xps defualt values via uciJohn Crispin2017-08-221-2/+12
| | | | Signed-off-by: John Crispin <john@phrozen.org>
* netifd: Add option to configure locktime for each deviceAlin Năstac2017-02-111-0/+10
| | | | | | | | | | | The UCI parameter neighlocktime allows to control the hardware address to IP mapping lock time in the IPv4 neighbour table. The IPv6 lock time was not set because it is not used at all in any kernel versions, hardware address override being controlled in this case by the override flag present in the NA packet. Signed-off-by: Alin Nastac <alin.nastac@gmail.com>
* netifd: Add sendredirects config supportDaniel Golle2017-01-101-0/+10
| | | | | | | | | | | | | | | | | | | | | | Setting /proc/sys/net/ipv4/conf/*/send_redirects is useful if a single layer-2 domain is shared among routed subnets. Sending redirects will prevents traffic from taking unnessesary detours through a gateway in cases where direct connectivity on layer 2 exists. This is commonly the case if an existing LAN infratructure with dump switches is used to additionally carry routing protocols like OLSR which are supported only by some nodes on the network. It's important to note that the default value for send_redirects differs for interface types (it's enabled on physical ethernet interfaces, but disabled e.g. on VLANs) due to olsrd changing /proc/sys/net/ipv4/conf/default/send_redirects during boot, thus the default differs also depending e.g. on the way an on-board switch is integrated on specific boards (as eth0 exists before olsrd is started, eth0.1 gets created by netifd later on...) Having a way to explicitely enable or disable send_redirects is thus desireable also to unify the default behaviour among different, but seemingly similar devices supported. Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* device: Use device_find for better readibility in device_createHans Dedecker2016-11-221-1/+1
| | | | | | | Use device_find in device_create so it's clear a device lookup is being done in the device list. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: ignore MTU values below minimumFelix Fietkau2016-09-281-2/+2
| | | | Signed-off-by: Felix Fietkau <nbd@nbd.name>
* device: Drop device down event during device release if device gets active againHans Dedecker2016-09-261-0/+4
| | | | | | | | | | | | Fixes a race condition as the device can be active again; due to a device_claim; by the logic behind the set_state device type function. In this case the down event cannot be sent anymore as it would bring down the interface(s) referencing the device. This can be the case for an aliased device when the underlying device is switched during a reload; the alias_set_device function can add a new dependency on the new active device which will put the aliased device in active mode again as the aliased device is already claimed by the interface using it. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: Move the different device type registrations to the device type fileHans Dedecker2016-09-261-10/+5
| | | | | | While at it; make device_types static if only used in the device type file Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* bridge: Allow setting multicast_fast_leave_optionHans Dedecker2016-09-141-0/+9
| | | | | | | | | | | | | | | | Setting the multicast_fast_leave option of a bridge allows to control the forwarding of multicast traffic when an IGMP/MLD leave is received. In case multicast_leave_option is enabled and a leave is received the multicast membership will immediately be dropped on the bridge port while in the other case the multicast membership will time out in the bridge. This could be usefull in scenarios where explicit multicast membership host tracking is not supported in the upstream network. In this case the multicast stream is still flowing after a leave is received resulting into possible bandwidth saturation on the lan if a new stream is joined as multiple multicast streams are received. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: add device handler listArne Kappen2016-08-261-0/+43
| | | | | | | | Device handlers now also declare if they have bridge capabilities and include a string to prefix device names for their types. Signed-off-by: Arne Kappen <akappen@inet.tu-berlin.de> Signed-off-by: Felix Fietkau <nbd@nbd.name> [cleanup/fixes]
* device: prepare for adding device handlers dynamicallyArne Kappen2016-08-261-8/+12
| | | | | | | | - remove const from device handler struct - pass device handler type to create function Signed-off-by: Arne Kappen <akappen@inet.tu-berlin.de> Signed-off-by: Felix Fietkau <nbd@nbd.name> [cleanup]
* device: Fix dotted vlan interface staying downHans Dedecker2016-06-061-0/+8
| | | | | | | | | | | | | | | | | | | Using the config below a dotted vlan interface stays down as get_vlan_device does not find the device due to the aliased device stacked on top of the base device. As all devices; aliased devices being the exception; are in the device list use device_find to find the device when setting the link state config interface 'test' option proto 'static' option ipaddr '192.168.2.1' option netmask '255.255.255.0' config interface 'test2' option ifname '@test.1' option proto 'dhcp' Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: Fix device find failure in avl list due to device name changeHans Dedecker2016-06-061-4/+25
| | | | | | | | As device name is used as key in avl list a device name change will break the avl find logic. Function device_set_ifname offers api to set the device name and re-inserts the avl node in the list when the avl key value is changed. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Add option to configure gc_stale_time for each deviceAlin Năstac2016-06-011-0/+14
| | | | | | | The UCI parameter neighgcstaletime allows to control how much time will STALE entries be kept in the neighbour table for both IPv4 and IPv6. Signed-off-by: Alin Nastac <alin.nastac@gmail.com>
* bridge: make learning and unicast-flood configurable per bridge portLinus Lüssing2016-05-221-0/+18
| | | | | | | | | | | | | | | | | | Tuning these two options allows a more fine grained configuration of the forwarding database (fdb) of a bridge. The former allows to enable or disable the learning of the presence of MAC addresses behind a bridge port. (default: enabled on all ports) The latter allows to tune the behaviour in case a destination MAC address of a frame is unknown to the fdb, like only flooding on specific ports or not flooding on any port. (default: flood on all ports, except incoming) This can be useful to create a dumb hub, for instance for monitoring purposes. Or in larger layer 2 mesh networks to avoid keeping redundant databases (e.g. with the batman-adv translation table). Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
* device: Fix null pointer derefence if device is unsetHans Dedecker2016-02-011-3/+10
| | | | | | | | Fix null pointer deference in device_claim if device is unset in device_user struct. Typically this is observed when the parent device is removed from (mac)vlan device config followed by a network reload Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: Support multicast config optionHans Dedecker2016-02-011-0/+10
| | | | | | | | Make multicast device flag configurable by extending device attributes with the multicast attribute Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> Signed-off-by: Nick Podolak <nicholas.podolak@dtechlabs.com>
* device: Fix possible segfaultHans Dedecker2016-02-011-0/+3
| | | | Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: fetch settings from external devices to make them usable for status ↵Felix Fietkau2015-11-171-0/+2
| | | | | | output Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* device: preserve orig_settings flags for querying device statusFelix Fietkau2015-11-171-1/+1
| | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* device: Resolve ifindex for external claimed devicesHans Dedecker2015-09-101-4/+9
| | | | | | | | Fixes regression issues introduced by commit 3224b80 as external (PPP) device ifindex was not in sync with kernel device ifindex due to re-creation of the device by the PPP daemon Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: Don't call set_state for external device in device_claimHans Dedecker2015-09-021-5/+4
| | | | | | | | | | | The function set_state disable is not called for external devices in device_release which means for external vlan/macvlan devices they won't be deleted. As a result of this the set_state enable call for external devices by device_claim fails as vlan/macvlan devices cannot be created since the device already exists in the kernel. Therefore move the external device check from device_set_state to device_claim so external vlan/macvlan devices are not created again and can also be external. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: apply settings when existing device becomes externalHans Dedecker2015-09-021-0/+1
| | | | | | Make sure device settings are applied when existing device becomes external Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* bridge: Allow setting multicast_router optionLinus Lüssing2015-08-251-0/+12
| | | | | | | | | | | | | | | | | | | | | | The multicast_router option of a bridge allows to control the forwarding behaviour of multicast packets independant of the listener state: * 0: Only forward if specific listener is present * 1 (default): Forward if specific listener or a multicast router was detected (currently only learned via query messages, no MRD support yet) * 2: Always forward any multicast traffic on this port Since MRD is not mandated you might end up with silent multicast routers (e.g. if your link has more than one multicast router; only one can become the selected, "noisy" querier). Here you might need a manual configuration option like the "multicast_router" option. Other scenarios where this can be useful are for instance: * Segmentation of IGMP/MLD domains together with ebtables * Dedicated bridge port for monitoring/debugging purposes Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
* bridge: Allow setting multicast_to_unicast optionLinus Lüssing2015-08-251-0/+9
| | | | | | | | | | | With this patch the multicast_to_unicast feature can be disabled for all wireless interfaces via an according option on the uci bridge interface. This patch also exports the setting information to wireless handler scripts. The hostapd script will need that information to determine whether to enable or disable ap-isolation, for instance. Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
* netifd: Spawn device events when registering dependency in device_replaceHans Dedecker2015-08-251-12/+17
| | | | | | | Spawn device events when adding dependency in device_replace so the dependency installer gets the actual device status Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Remove obsolete device_set_present in device_replaceHans Dedecker2015-08-251-5/+1
| | | | | | | New device does not need to be set present as device_check_state called via device_init sets the device present after probing the kernel device Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Fix device usage after freeHans Dedecker2015-08-251-0/+3
| | | | | | | | Prevent new device from being freed in device_replace when device_unlock is called along the function chain triggered by setting the old device as not present Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Fix SEG fault when device cannot be allocatedHans Dedecker2015-08-251-0/+3
| | | | Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: apply initial settings when creating an external deviceFelix Fietkau2015-07-191-0/+2
| | | | | | Fixes RPS/XPS settings for wlan devices Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* netifd: Add dadtransmits config optionHans Dedecker2015-07-031-1/+11
| | | | | | | Config option dadtransmits allows to configure the amount of Duplicate Address Detection probes to be sent Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* Add mtu6 option to override IPv6 MTUSteven Barth2015-06-241-0/+9
| | | | Signed-off-by: Steven Barth <steven@midlink.org>
* netifd: Support for configurable default packet steering behaviorHans Dedecker2015-05-121-7/+49
| | | | | | | | | | | | The default packet steering behavior can be configured via the parameter default_ps in the global section; the default value is true to keep backwards compatibility. Device packet steering (rps/xps) config can still be used to override the default behavior. This allows you to disable packet steering for all devices without the need to define a device config list which disables receive/transmit packet steering Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* device: remove DEV_ATTR_IFNAME, it is unusedFelix Fietkau2015-04-171-1/+0
| | | | | | | Ensures that interfaces with only 'ifname' matching the device config don't cause iface->device_config to be set Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* device: fix default initialization for RPS/XPSFelix Fietkau2015-03-221-0/+2
| | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* device: add support for configuring RPS/XPS (enabled by default if available)Felix Fietkau2015-03-221-0/+12
| | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* netifd:Make sure interface device config is also cachedHans Dedecker2015-03-191-1/+1
| | | | | | | | | | Fixes issue interface device config is not applied in some cases. As the interface device config was applied but not always cached; an interface device config diff was not always detected. Simplify device config setting by exposing as api only device_apply_config Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Add option to configure base_reachable_time_ms for each deviceHans Dedecker2015-02-091-0/+14
| | | | | | | | The UCI parameter neighreachabletime allows to control the hardware address to IP mapping lifetime in the neighbour table for both IPv4 and IPv6 Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> Signed-off-by: Jean-Francois Remy <jeff@melix.org>
* device: force changes to be applied via state change if necessaryFelix Fietkau2015-01-241-0/+4
| | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* device: simplify config blob memory allocation handlingFelix Fietkau2015-01-241-5/+5
| | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* device: move config apply handling to a helper functionFelix Fietkau2015-01-241-29/+41
| | | | Signed-off-by: Felix Fietkau <nbd@openwrt.org>
* netifd: Add mldversion config supportSteven Barth2014-12-231-1/+14
| | | | | | | | | | | | Config support to set the MLD host version on device level; possible values are : 1 : MLDv1 2 : MLDv2 Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> Cleaned up and simplified. Signed-off-by: Steven Barth <steven@midlink.org>
* netifd: Add igmpversion config supportHans Dedecker2014-12-081-0/+11
| | | | | | | | | | | | | Config support to set the IGMP host version on device level; possible values are : 1 : IGMPv1 2 : IGMPv2 3 : IGMPv3 Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> Cleand up and simplified Signed-off-by: Steven Barth <steven@midlink.org>
* netifd: Add acceptlocal config supportHans Dedecker2014-11-191-0/+9
| | | | | | Adds support to accept packets with local source address. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Add rpfilter config supportHans Dedecker2014-11-191-0/+11
| | | | | | | | | | | Reverse path filtering config support; possible values are: 0: no source validation 1|strict: strict mode as packet will be dropped if the incoming interface is not the best reverse path 2|loose: loose mode as packet will be dropped if the source address is not reachable via any interface Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
* netifd: Fix device ifindex overwrite when processing netlink event messagesHans Dedecker2014-11-191-0/+8
| | | | | | | | | | | When a device with the same name is deleted and created again in the kernel the ifindex changes. A race condition will occur when netlink event messages linked to the old device are processed and will thus overwrite the correct ifindex of the new device. Further make sure a valid ifindex is in place for both external and internal devices when setting the state to enabled. Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
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