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0416e3dde1
(that does not work with dumpleases) dumpleases: fix -a option. networking/udhcp/*: code shrink, more compact static leases struture, better comments, etc function old new delta find_free_or_expired_address - 147 +147 nobody_responds_to_arp - 84 +84 read_opt 781 830 +49 dumpleases_main 435 447 +12 send_ACK 229 232 +3 read_staticlease 90 93 +3 addStaticLease 60 61 +1 getIpByMac 46 43 -3 reservedIp 31 20 -11 keywords 304 288 -16 send_offer 428 403 -25 write_leases 225 193 -32 read_leases 184 143 -41 read_yn 64 - -64 find_address 191 - -191 ------------------------------------------------------------------------------ (add/remove: 2/2 grow/shrink: 5/6 up/down: 299/-383) Total: -84 bytes
80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
/* vi: set sw=4 ts=4: */
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/*
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* static_leases.c -- Couple of functions to assist with storing and
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* retrieving data for static leases
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*
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* Wade Berrier <wberrier@myrealbox.com> September 2004
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*
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* Licensed under GPLv2, see file LICENSE in this tarball for details.
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*/
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#include "common.h"
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#include "dhcpd.h"
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/* Takes the address of the pointer to the static_leases linked list,
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* Address to a 6 byte mac address
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* Address to a 4 byte ip address */
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void FAST_FUNC addStaticLease(struct static_lease **lease_struct, uint8_t *mac, uint32_t ip)
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{
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struct static_lease *new_static_lease;
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/* Build new node */
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new_static_lease = xzalloc(sizeof(struct static_lease));
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memcpy(new_static_lease->mac, mac, 6);
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new_static_lease->ip = ip;
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/*new_static_lease->next = NULL;*/
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/* If it's the first node to be added... */
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if (*lease_struct == NULL) {
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*lease_struct = new_static_lease;
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} else {
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struct static_lease *cur = *lease_struct;
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while (cur->next)
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cur = cur->next;
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cur->next = new_static_lease;
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}
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}
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/* Check to see if a mac has an associated static lease */
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uint32_t FAST_FUNC getIpByMac(struct static_lease *lease_struct, void *mac)
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{
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while (lease_struct) {
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if (memcmp(lease_struct->mac, mac, 6) == 0)
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return lease_struct->ip;
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lease_struct = lease_struct->next;
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}
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return 0;
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}
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/* Check to see if an ip is reserved as a static ip */
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int FAST_FUNC reservedIp(struct static_lease *lease_struct, uint32_t ip)
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{
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while (lease_struct) {
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if (lease_struct->ip == ip)
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return 1;
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lease_struct = lease_struct->next;
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}
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return 0;
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}
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#if ENABLE_UDHCP_DEBUG
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/* Print out static leases just to check what's going on */
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/* Takes the address of the pointer to the static_leases linked list */
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void FAST_FUNC printStaticLeases(struct static_lease **arg)
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{
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struct static_lease *cur = *arg;
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while (cur) {
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printf("PrintStaticLeases: Lease mac Value: %02x:%02x:%02x:%02x:%02x:%02x\n",
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cur->mac[0], cur->mac[1], cur->mac[2],
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cur->mac[3], cur->mac[4], cur->mac[5]
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);
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printf("PrintStaticLeases: Lease ip Value: %x\n", cur->ip);
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cur = cur->next;
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}
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}
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#endif
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