Struct base::sys::linux::NetlinkGenericRead

pub struct NetlinkGenericRead {
    allocation: LayoutAllocation,
    len: usize,
}

Fields

allocation: LayoutAllocation

len: usize

Implementations

impl NetlinkGenericRead

pub fn iter(&self) -> NetlinkMessageIter<'_>

pub fn get_multicast_group_id(&self, group_name: String) -> Option<u32>

Parse NetlinkGeneric response in order to get multicast group id

On success, returns group_id for a given group_name

Arguments

• group_name - String with group_name for which we are looking group_id

Response from family_name_query (CTRL_CMD_GETFAMILY) is a netlink message with multiple attributes encapsulated (some of them are nested). An example response layout is illustrated below:

{ CTRL_ATTR_FAMILY_NAME CTRL_ATTR_FAMILY_ID CTRL_ATTR_VERSION … CTRL_ATTR_MCAST_GROUPS { GR1 (nl_attr._type = 1) { CTRL_ATTR_MCAST_GRP_ID *we need parse this attr to obtain group id used for the group mask CTRL_ATTR_MCAST_GRP_NAME *group_name that we need to match with } GR2 (nl_attr._type = 2) { CTRL_ATTR_MCAST_GRP_ID CTRL_ATTR_MCAST_GRP_NAME } … } }