1 files changed, 119 insertions, 0 deletions

diff --git a/networking/udhcp/static_leases.c b/networking/udhcp/static_leases.c
new file mode 100644
index 000000000..1124d39de
--- /dev/null
+++ b/networking/udhcp/static_leases.c
@@ -0,0 +1,119 @@
+/*
+ * static_leases.c -- Couple of functions to assist with storing and
+ * retrieving data for static leases
+ *
+ * Wade Berrier <wberrier@myrealbox.com> September 2004
+ *
+ */
+
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "static_leases.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 */
+int addStaticLease(struct static_lease **lease_struct, uint8_t *mac, uint32_t *ip)
+{
+
+        struct static_lease *cur;
+        struct static_lease *new_static_lease;
+
+        /* Build new node */
+        new_static_lease = xmalloc(sizeof(struct static_lease));
+        new_static_lease->mac = mac;
+        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
+        {
+                cur = *lease_struct;
+                while(cur->next != NULL)
+                {
+                        cur = cur->next;
+                }
+
+                cur->next = new_static_lease;
+        }
+
+        return 1;
+
+}
+
+/* Check to see if a mac has an associated static lease */
+uint32_t getIpByMac(struct static_lease *lease_struct, void *arg)
+{
+        uint32_t return_ip;
+        struct static_lease *cur = lease_struct;
+        uint8_t *mac = arg;
+
+        return_ip = 0;
+
+        while(cur != NULL)
+        {
+                /* If the client has the correct mac  */
+                if(memcmp(cur->mac, mac, 6) == 0)
+                {
+                        return_ip = *(cur->ip);
+                }
+
+                cur = cur->next;
+        }
+
+        return return_ip;
+
+}
+
+/* Check to see if an ip is reserved as a static ip */
+uint32_t reservedIp(struct static_lease *lease_struct, uint32_t ip)
+{
+        struct static_lease *cur = lease_struct;
+
+        uint32_t return_val = 0;
+
+        while(cur != NULL)
+        {
+                /* If the client has the correct ip  */
+                if(*cur->ip == ip)
+                        return_val = 1;
+
+                cur = cur->next;
+        }
+
+        return return_val;
+
+}
+
+#ifdef 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 printStaticLeases(struct static_lease **arg)
+{
+        /* Get a pointer to the linked list */
+        struct static_lease *cur = *arg;
+
+        while(cur != NULL)
+        {
+                /* printf("PrintStaticLeases: Lease mac Address: %x\n", cur->mac); */
+                printf("PrintStaticLeases: Lease mac Value: %x\n", *(cur->mac));
+                /* printf("PrintStaticLeases: Lease ip Address: %x\n", cur->ip); */
+                printf("PrintStaticLeases: Lease ip Value: %x\n", *(cur->ip));
+
+                cur = cur->next;
+        }
+
+
+}
+#endif
+
+
+