remove in place of external link

1 files changed, 0 insertions, 158 deletions

diff --git a/networking/udhcp/leases.c b/networking/udhcp/leases.c
deleted file mode 100644
index bb08c3a..0000000
--- a/networking/udhcp/leases.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * leases.c -- tools to manage DHCP leases
- * Russ Dill <Russ.Dill@asu.edu> July 2001
- */
-
-#include <time.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-
-#include "dhcpd.h"
-#include "files.h"
-#include "options.h"
-#include "leases.h"
-#include "arpping.h"
-#include "common.h"
-
-#include "static_leases.h"
-
-
-uint8_t blank_chaddr[] = {[0 ... 15] = 0};
-
-/* clear every lease out that chaddr OR yiaddr matches and is nonzero */
-void clear_lease(uint8_t *chaddr, uint32_t yiaddr)
-{
-	unsigned int i, j;
-
-	for (j = 0; j < 16 && !chaddr[j]; j++);
-
-	for (i = 0; i < server_config.max_leases; i++)
-		if ((j != 16 && !memcmp(leases[i].chaddr, chaddr, 16)) ||
-		    (yiaddr && leases[i].yiaddr == yiaddr)) {
-			memset(&(leases[i]), 0, sizeof(struct dhcpOfferedAddr));
-		}
-}
-
-
-/* add a lease into the table, clearing out any old ones */
-struct dhcpOfferedAddr *add_lease(uint8_t *chaddr, uint32_t yiaddr, unsigned long lease)
-{
-	struct dhcpOfferedAddr *oldest;
-
-	/* clean out any old ones */
-	clear_lease(chaddr, yiaddr);
-
-	oldest = oldest_expired_lease();
-
-	if (oldest) {
-		memcpy(oldest->chaddr, chaddr, 16);
-		oldest->yiaddr = yiaddr;
-		oldest->expires = time(0) + lease;
-	}
-
-	return oldest;
-}
-
-
-/* true if a lease has expired */
-int lease_expired(struct dhcpOfferedAddr *lease)
-{
-	return (lease->expires < (unsigned long) time(0));
-}
-
-
-/* Find the oldest expired lease, NULL if there are no expired leases */
-struct dhcpOfferedAddr *oldest_expired_lease(void)
-{
-	struct dhcpOfferedAddr *oldest = NULL;
-	unsigned long oldest_lease = time(0);
-	unsigned int i;
-
-
-	for (i = 0; i < server_config.max_leases; i++)
-		if (oldest_lease > leases[i].expires) {
-			oldest_lease = leases[i].expires;
-			oldest = &(leases[i]);
-		}
-	return oldest;
-
-}
-
-
-/* Find the first lease that matches chaddr, NULL if no match */
-struct dhcpOfferedAddr *find_lease_by_chaddr(uint8_t *chaddr)
-{
-	unsigned int i;
-
-	for (i = 0; i < server_config.max_leases; i++)
-		if (!memcmp(leases[i].chaddr, chaddr, 16)) return &(leases[i]);
-
-	return NULL;
-}
-
-
-/* Find the first lease that matches yiaddr, NULL is no match */
-struct dhcpOfferedAddr *find_lease_by_yiaddr(uint32_t yiaddr)
-{
-	unsigned int i;
-
-	for (i = 0; i < server_config.max_leases; i++)
-		if (leases[i].yiaddr == yiaddr) return &(leases[i]);
-
-	return NULL;
-}
-
-
-/* check is an IP is taken, if it is, add it to the lease table */
-static int check_ip(uint32_t addr)
-{
-	struct in_addr temp;
-
-	if (arpping(addr, server_config.server, server_config.arp, server_config.interface) == 0) {
-		temp.s_addr = addr;
-		LOG(LOG_INFO, "%s belongs to someone, reserving it for %ld seconds",
-			inet_ntoa(temp), server_config.conflict_time);
-		add_lease(blank_chaddr, addr, server_config.conflict_time);
-		return 1;
-	} else return 0;
-}
-
-
-/* find an assignable address, it check_expired is true, we check all the expired leases as well.
- * Maybe this should try expired leases by age... */
-uint32_t find_address(int check_expired)
-{
-	uint32_t addr, ret;
-	struct dhcpOfferedAddr *lease = NULL;
-
-	addr = ntohl(server_config.start); /* addr is in host order here */
-	for (;addr <= ntohl(server_config.end); addr++) {
-
-		/* ie, 192.168.55.0 */
-		if (!(addr & 0xFF)) continue;
-
-		/* ie, 192.168.55.255 */
-		if ((addr & 0xFF) == 0xFF) continue;
-
-		/* Only do if it isn't an assigned as a static lease */
-		if(!reservedIp(server_config.static_leases, htonl(addr)))
-		{
-
-		/* lease is not taken */
-		ret = htonl(addr);
-		if ((!(lease = find_lease_by_yiaddr(ret)) ||
-
-		     /* or it expired and we are checking for expired leases */
-		     (check_expired  && lease_expired(lease))) &&
-
-		     /* and it isn't on the network */
-		     !check_ip(ret)) {
-			return ret;
-			break;
-		}
-	}
-	}
-	return 0;
-}