dev_valid_name – check if name is okay for network device Synopsis bool dev_valid_name(const char * name); Arguments name name string Description Network device names need to be valid file names to to allow sysfs to work. We also disallow any kind of whitespace. Copyright
dev_set_promiscuity – update promiscuity count on a device Synopsis int dev_set_promiscuity(struct net_device *dev, int inc); Arguments dev device inc modifier Description Add or remove promiscuity from a device. While the count in the device remains above zero the interface remains promiscuous. Once it hits zero the device reverts back to normal filtering operation. A negative…
dev_set_mtu – Change maximum transfer unit Synopsis int dev_set_mtu(struct net_device *dev, int new_mtu); Arguments dev device new_mtu new transfer unit Description Change the maximum transfer size of the network device. Copyright
dev_set_mac_address – Change Media Access Control Address Synopsis int dev_set_mac_address(struct net_device *dev, struct sockaddr *sa); Arguments dev device sa new address Description Change the hardware (MAC) address of the device Copyright
dev_set_group – Change group this device belongs to Synopsis void dev_set_group(struct net_device *dev, int new_group); Arguments dev device new_group group this device should belong to Copyright
dev_set_allmulti – update allmulti count on a device Synopsis int dev_set_allmulti(struct net_device *dev, int inc); Arguments dev device inc modifier Description Add or remove reception of all multicast frames to a device. While the count in the device remains above zero the interface remains listening to all interfaces. Once it hits zero the device reverts…
dev_remove_pack – remove packet handler Synopsis void dev_remove_pack(struct packet_type *pt); Arguments pt packet type declaration Description Remove a protocol handler that was previously added to the kernel protocol handlers by dev_add_pack. The passed packet_type is removed from the kernel lists and can be freed or reused once this function returns. This call sleeps to guarantee…
dev_remove_offload – remove packet offload handler Synopsis void dev_remove_offload(struct packet_offload *po); Arguments po packet offload declaration Description Remove a packet offload handler that was previously added to the kernel offload handlers by dev_add_offload. The passed offload_type is removed from the kernel lists and can be freed or reused once this function returns. This call sleeps…
dev_put – release reference to device Synopsis void dev_put(struct net_device *dev); Arguments dev network device Description Release reference to device to allow it to be freed. Copyright
dev_open – prepare an interface for use. Synopsis int dev_open(struct net_device *dev); Arguments dev device to open Description Takes a device from down to up state. The device’s private open function is invoked and then the multicast lists are loaded. Finally the device is moved into the up state and a NETDEV_UP message is sent…
dev_loopback_xmit – loop back skb Synopsis int dev_loopback_xmit(struct net *net, struct sock *sk, struct sk_buff *skb); Arguments net network namespace this loopback is happening in sk sk needed to be a netfilter okfn skb buffer to transmit Copyright
dev_hold – get reference to device Synopsis void dev_hold(struct net_device *dev); Arguments dev network device Description Hold reference to device to keep it from being freed. Copyright
dev_getbyhwaddr_rcu – find a device by its hardware address Synopsis struct net_device *dev_getbyhwaddr_rcu(struct net *net, unsigned short type, const char *ha); Arguments net the applicable net namespace type media type of device ha hardware address Description Search for an interface by MAC address. Returns NULL if the device is not found or a pointer to…
dev_get_stats – get network device statistics Synopsis struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, struct rtnl_link_stats64 *storage); Arguments dev device to get statistics from storage place to store stats Description Get network statistics from device. Return storage. The device driver may provide its own method by setting dev->netdev_ops->get_stats64 or dev->netdev_ops->get_stats; otherwise the internal statistics structure is used….
dev_get_phys_port_name – Get device physical port name Synopsis int dev_get_phys_port_name(struct net_device *dev, char *name, size_t len); Arguments dev device name port name len limit of bytes to copy to name Description Get device physical port name Copyright
dev_get_phys_port_id – Get device physical port ID Synopsis int dev_get_phys_port_id(struct net_device *dev, struct netdev_phys_item_id *ppid); Arguments dev device ppid port ID Description Get device physical port ID Copyright
dev_get_iflink – get ‘iflink’ value of a interface Synopsis int dev_get_iflink(const struct net_device *dev); Arguments dev targeted interface Description Indicates the ifindex the interface is linked to. Physical interfaces have the same ‘ifindex’ and ‘iflink’ values. Copyright
dev_get_flags – get flags reported to userspace Synopsis unsigned int dev_get_flags(const struct net_device *dev); Arguments dev device Description Get the combination of flag bits exported through APIs to userspace. Copyright
dev_get_by_name_rcu – find a device by its name Synopsis struct net_device *dev_get_by_name_rcu(struct net *net, const char *name); Arguments net the applicable net namespace name name to find Description Find an interface by name. If the name is found a pointer to the device is returned. If the name is not found then NULL is returned….
dev_get_by_name – find a device by its name Synopsis struct net_device *dev_get_by_name(struct net *net, const char *name); Arguments net the applicable net namespace name name to find Description Find an interface by name. This can be called from any context and does its own locking. The returned handle has the usage count incremented and the…