diff options
Diffstat (limited to 'networking/udhcp/dhcpd.c')
| -rw-r--r-- | networking/udhcp/dhcpd.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/networking/udhcp/dhcpd.c b/networking/udhcp/dhcpd.c index a1a7f6b..4b3ed24 100644 --- a/networking/udhcp/dhcpd.c +++ b/networking/udhcp/dhcpd.c @@ -28,6 +28,7 @@ //usage: "\n -f Run in foreground" //usage: "\n -S Log to syslog too" //usage: "\n -I ADDR Local address" +//usage: "\n -a MSEC Timeout for ARP ping (default 2000)" //usage: IF_FEATURE_UDHCP_PORT( //usage: "\n -P N Use port N (default 67)" //usage: ) @@ -148,7 +149,8 @@ static uint32_t select_lease_time(struct dhcp_packet *packet) static NOINLINE void send_offer(struct dhcp_packet *oldpacket, uint32_t static_lease_nip, struct dyn_lease *lease, - uint8_t *requested_ip_opt) + uint8_t *requested_ip_opt, + unsigned arpping_ms) { struct dhcp_packet packet; uint32_t lease_time_sec; @@ -187,7 +189,7 @@ static NOINLINE void send_offer(struct dhcp_packet *oldpacket, } else { /* Otherwise, find a free IP */ - packet.yiaddr = find_free_or_expired_nip(oldpacket->chaddr); + packet.yiaddr = find_free_or_expired_nip(oldpacket->chaddr, arpping_ms); } if (!packet.yiaddr) { @@ -304,6 +306,8 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) unsigned opt; struct option_set *option; char *str_I = str_I; + const char *str_a = "2000"; + unsigned arpping_ms; IF_FEATURE_UDHCP_PORT(char *str_P;) #if ENABLE_FEATURE_UDHCP_PORT @@ -314,9 +318,10 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) #if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 1 opt_complementary = "vv"; #endif - opt = getopt32(argv, "fSI:v" + opt = getopt32(argv, "fSI:va:" IF_FEATURE_UDHCP_PORT("P:") , &str_I + , &str_a IF_FEATURE_UDHCP_PORT(, &str_P) IF_UDHCP_VERBOSE(, &dhcp_verbose) ); @@ -336,11 +341,13 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) free(lsa); } #if ENABLE_FEATURE_UDHCP_PORT - if (opt & 16) { /* -P */ + if (opt & 32) { /* -P */ SERVER_PORT = xatou16(str_P); CLIENT_PORT = SERVER_PORT + 1; } #endif + arpping_ms = xatou(str_a); + /* Would rather not do read_config before daemonization - * otherwise NOMMU machines will parse config twice */ read_config(argv[0] ? argv[0] : DHCPD_CONF_FILE); @@ -498,7 +505,7 @@ int udhcpd_main(int argc UNUSED_PARAM, char **argv) case DHCPDISCOVER: log1("Received DISCOVER"); - send_offer(&packet, static_lease_nip, lease, requested_ip_opt); + send_offer(&packet, static_lease_nip, lease, requested_ip_opt, arpping_ms); break; case DHCPREQUEST: |