Dhcp_clientval pp : Stdlib.Format.formatter -> t -> unitval create :
?options:Dhcp_wire.dhcp_option list ->
?requests:Dhcp_wire.option_code list ->
Cstruct.uint32 ->
Macaddr.t ->
t * Dhcp_wire.pktcreate ~options ~requests xid mac returns a pair of t, buffer. t represents the current state of the client in the lease transaction, and buffer is the suggested next packet the caller should take to progress toward accepting a lease. The argument xid allows the caller to specify a transaction ID to use for the lease attempt. requests is a list of option codes which the client should ask for in its attempt to get a DHCP lease. If requests is not given, we'll make an educated guess rather than requesting nothing. options is a list of options which the client will send in the DHCP DISCOVER and DHCP REQUEST.
val input :
t ->
Cstruct.t ->
[ `Response of t * Dhcp_wire.pkt | `New_lease of t * Dhcp_wire.pkt | `Noop ]input t buf attempts to advance the state of t with the contents of buf. If buf is invalid or not useful given the current state of t, `Noop is returned indicating no action should be taken. Otherwise, either a `Response will be suggested along with a t whose state has been advanced, or a `New_lease will be returned along with a t whose state has been advanced.
val lease : t -> Dhcp_wire.pkt optionlease t will return Some lease if t has succeeded in completing a lease transaction with some server. Note that the library has no sense of the passage of time, so expiration is not considered; there is no guarantee that Some lease is still valid on the network. The caller is responsible for keeping track of the time at which the lease was obtained, and renewing the lease when necessary. If t hasn't yet completed a lease transaction, None will be returned.
val renew : t -> [ `Response of t * Dhcp_wire.pkt | `Noop ]renew t returns either a `Response with the next state and suggested action of the client attempting to renew t's lease, or `Noop if t does not have a lease and therefore can't be renewed.