diff options
Diffstat (limited to 'dhcpv4/dhcpv4.go')
| -rw-r--r-- | dhcpv4/dhcpv4.go | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/dhcpv4/dhcpv4.go b/dhcpv4/dhcpv4.go index 89c7184..6043cd9 100644 --- a/dhcpv4/dhcpv4.go +++ b/dhcpv4/dhcpv4.go @@ -248,18 +248,22 @@ func NewRequestFromOffer(offer *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) )...) } -// NewRenewFromOffer builds a DHCPv4 RENEW-style request from an offer. RENEW requests have minor -// changes to their options compared to SELECT requests as specified by RFC 2131, section 4.3.2. -func NewRenewFromOffer(offer *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) { - return NewRequestFromOffer(offer, PrependModifiers(modifiers, - // The server identifier option must not be filled in - WithoutOption(OptionServerIdentifier), - // The requested IP address must not be filled in - WithoutOption(OptionRequestedIPAddress), +// NewRenewFromAck builds a DHCPv4 RENEW-style request from the ACK of a lease. RENEW requests have +// minor changes to their options compared to SELECT requests as specified by RFC 2131, section 4.3.2. +func NewRenewFromAck(ack *DHCPv4, modifiers ...Modifier) (*DHCPv4, error) { + return New(PrependModifiers(modifiers, + WithReply(ack), + WithMessageType(MessageTypeRequest), // The client IP must be filled in with the IP offered to the client - WithClientIP(offer.YourIPAddr), + WithClientIP(ack.YourIPAddr), // The renewal request must use unicast WithBroadcast(false), + WithRequestedOptions( + OptionSubnetMask, + OptionRouter, + OptionDomainName, + OptionDomainNameServer, + ), )...) } |