1 files changed, 79 insertions, 0 deletions
diff --git a/release/src/router/busybox/networking/udhcp/static_leases.c b/release/src/router/busybox/networking/udhcp/static_leases.c
new file mode 100644
index 00000000..1e77a58f
--- /dev/null
+++ b/release/src/router/busybox/networking/udhcp/static_leases.c
@@ -0,0 +1,79 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * static_leases.c -- Couple of functions to assist with storing and
+ * retrieving data for static leases
+ *
+ * Wade Berrier <wberrier@myrealbox.com> September 2004
+ *
+ * Licensed under GPLv2, see file LICENSE in this tarball for details.
+ */
+
+#include "common.h"
+#include "dhcpd.h"
+
+
+/* Takes the address of the pointer to the static_leases linked list,
+ *   Address to a 6 byte mac address
+ *   Address to a 4 byte ip address */
+void FAST_FUNC addStaticLease(struct static_lease **lease_struct, uint8_t *mac, uint32_t ip)
+{
+	struct static_lease *new_static_lease;
+
+	/* Build new node */
+	new_static_lease = xzalloc(sizeof(struct static_lease));
+	memcpy(new_static_lease->mac, mac, 6);
+	new_static_lease->ip = ip;
+	/*new_static_lease->next = NULL;*/
+
+	/* If it's the first node to be added... */
+	if (*lease_struct == NULL) {
+		*lease_struct = new_static_lease;
+	} else {
+		struct static_lease *cur = *lease_struct;
+		while (cur->next)
+			cur = cur->next;
+		cur->next = new_static_lease;
+	}
+}
+
+/* Check to see if a mac has an associated static lease */
+uint32_t FAST_FUNC getIpByMac(struct static_lease *lease_struct, void *mac)
+{
+	while (lease_struct) {
+		if (memcmp(lease_struct->mac, mac, 6) == 0)
+			return lease_struct->ip;
+		lease_struct = lease_struct->next;
+	}
+
+	return 0;
+}
+
+/* Check to see if an ip is reserved as a static ip */
+int FAST_FUNC reservedIp(struct static_lease *lease_struct, uint32_t ip)
+{
+	while (lease_struct) {
+		if (lease_struct->ip == ip)
+			return 1;
+		lease_struct = lease_struct->next;
+	}
+
+	return 0;
+}
+
+#if ENABLE_UDHCP_DEBUG
+/* Print out static leases just to check what's going on */
+/* Takes the address of the pointer to the static_leases linked list */
+void FAST_FUNC printStaticLeases(struct static_lease **arg)
+{
+	struct static_lease *cur = *arg;
+
+	while (cur) {
+		printf("PrintStaticLeases: Lease mac Value: %02x:%02x:%02x:%02x:%02x:%02x\n",
+			cur->mac[0], cur->mac[1], cur->mac[2],
+			cur->mac[3], cur->mac[4], cur->mac[5]
+		);
+		printf("PrintStaticLeases: Lease ip Value: %x\n", cur->ip);
+		cur = cur->next;
+	}
+}
+#endif