net/dhcp: Introduce per-interface timeout

Currently we have a global timeout for all network cards in the BOOTP/DHCP
discovery process.

Make this timeout a per-interface one, so better accommodate the upcoming
4-way DHCP handshake and to also cover the lease time limit a DHCP offer
will come with.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Andrei Borzenkov 2019-03-07 15:14:12 +00:00 committed by Daniel Kiper
parent 5459243465
commit 12e1b6e604
2 changed files with 36 additions and 4 deletions

View file

@ -292,6 +292,8 @@ struct grub_net_network_level_interface
struct grub_net_bootp_packet *dhcp_ack;
grub_size_t dhcp_acklen;
grub_uint16_t vlantag;
unsigned dhcp_tmo_left; /* DHCPv4 running retransmission timeout */
unsigned dhcp_tmo; /* DHCPv4 current retransmission timeout */
void *data;
};