diff options
| -rw-r--r-- | networking/udhcp/dhcpd.c | 27 |
1 files changed, 9 insertions, 18 deletions
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c index 26fb304..d7887d9 100644 --- a/networking/udhcp/dhcpd.c +++ b/networking/udhcp/dhcpd.c @@ -120,12 +120,11 @@ static uint32_t select_lease_time(struct dhcp_packet *packet) } /* send a DHCP OFFER to a DHCP DISCOVER */ -static int send_offer(struct dhcp_packet *oldpacket) +static int send_offer(struct dhcp_packet *oldpacket, uint32_t static_lease_nip, struct dyn_lease *lease) { struct dhcp_packet packet; uint32_t req_nip; uint32_t lease_time_sec = server_config.max_lease_sec; - uint32_t static_lease_ip; uint8_t *req_ip_opt; const char *p_host_name; struct option_set *curr; @@ -133,18 +132,10 @@ static int send_offer(struct dhcp_packet *oldpacket) init_packet(&packet, oldpacket, DHCPOFFER); - static_lease_ip = get_static_nip_by_mac(server_config.static_leases, oldpacket->chaddr); - /* ADDME: if static, short circuit */ - if (!static_lease_ip) { - struct dyn_lease *lease; - - lease = find_lease_by_mac(oldpacket->chaddr); + if (!static_lease_nip) { /* The client is in our lease/offered table */ if (lease) { - signed_leasetime_t tmp = lease->expires - time(NULL); - if (tmp >= 0) - lease_time_sec = tmp; packet.yiaddr = lease->lease_nip; } /* Or the client has requested an IP */ @@ -183,7 +174,7 @@ static int send_offer(struct dhcp_packet *oldpacket) lease_time_sec = select_lease_time(oldpacket); } else { /* It is a static lease... use it */ - packet.yiaddr = static_lease_ip; + packet.yiaddr = static_lease_nip; } add_simple_option(packet.options, DHCP_LEASE_TIME, htonl(lease_time_sec)); @@ -288,7 +279,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) int server_socket = -1, retval, max_sock; struct dhcp_packet packet; uint8_t *state; - uint32_t static_lease_ip; + uint32_t static_lease_nip; unsigned timeout_end; unsigned num_ips; unsigned opt; @@ -439,12 +430,12 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) } /* Look for a static lease */ - static_lease_ip = get_static_nip_by_mac(server_config.static_leases, &packet.chaddr); - if (static_lease_ip) { - bb_info_msg("Found static lease: %x", static_lease_ip); + static_lease_nip = get_static_nip_by_mac(server_config.static_leases, &packet.chaddr); + if (static_lease_nip) { + bb_info_msg("Found static lease: %x", static_lease_nip); memcpy(&fake_lease.lease_mac, &packet.chaddr, 6); - fake_lease.lease_nip = static_lease_ip; + fake_lease.lease_nip = static_lease_nip; fake_lease.expires = 0; lease = &fake_lease; @@ -456,7 +447,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) case DHCPDISCOVER: log1("Received DISCOVER"); - if (send_offer(&packet) < 0) { + if (send_offer(&packet, static_lease_nip, lease) < 0) { bb_error_msg("send OFFER failed"); } break; |