Diff of /trunk/mkinitrd-magellan/busybox/networking/udhcp/static_leases.c

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	revision 983 by niro, Fri Apr 24 18:33:46 2009 UTC	revision 984 by niro, Sun May 30 11:32:42 2010 UTC
#	Line 5	Line 5
5	*	*
6	* Wade Berrier <wberrier@myrealbox.com> September 2004	* Wade Berrier <wberrier@myrealbox.com> September 2004
7	*	*
8		* Licensed under GPLv2, see file LICENSE in this tarball for details.
9	*/	*/
10
11	#include "common.h"	#include "common.h"
#	Line 12	Line 13
13
14
15	/* Takes the address of the pointer to the static_leases linked list,	/* Takes the address of the pointer to the static_leases linked list,
16	*   Address to a 6 byte mac address	* address to a 6 byte mac address,
17	*   Address to a 4 byte ip address */	* 4 byte IP address */
18	int FAST_FUNC addStaticLease(struct static_lease **lease_struct, uint8_t *mac, uint32_t *ip)	void FAST_FUNC add_static_lease(struct static_lease **st_lease_pp,
19		uint8_t *mac,
20		uint32_t nip)
21	{	{
22	struct static_lease *cur;	struct static_lease *st_lease;
	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) {
	cur = cur->next;
	}
23
24	cur->next = new_static_lease;	/* Find the tail of the list */
25		while ((st_lease = *st_lease_pp) != NULL) {
26		st_lease_pp = &st_lease->next;
27	}	}
28
29	return 1;	/* Add new node */
30		*st_lease_pp = st_lease = xzalloc(sizeof(*st_lease));
31		memcpy(st_lease->mac, mac, 6);
32		st_lease->nip = nip;
33		/*st_lease->next = NULL;*/
34	}	}
35
36	/* Check to see if a mac has an associated static lease */	/* Find static lease IP by mac */
37	uint32_t FAST_FUNC getIpByMac(struct static_lease *lease_struct, void *arg)	uint32_t FAST_FUNC get_static_nip_by_mac(struct static_lease *st_lease, void *mac)
38	{	{
39	uint32_t return_ip;	while (st_lease) {
40	struct static_lease *cur = lease_struct;	if (memcmp(st_lease->mac, mac, 6) == 0)
41	uint8_t *mac = arg;	return st_lease->nip;
42		st_lease = st_lease->next;
	return_ip = 0;
	while (cur) {
	/* If the client has the correct mac  */
	if (memcmp(cur->mac, mac, 6) == 0) {
	return_ip = *(cur->ip);
	}
	cur = cur->next;
43	}	}
44
45	return return_ip;	return 0;
46	}	}
47
48	/* Check to see if an ip is reserved as a static ip */	/* Check to see if an IP is reserved as a static IP */
49	uint32_t FAST_FUNC reservedIp(struct static_lease *lease_struct, uint32_t ip)	int FAST_FUNC is_nip_reserved(struct static_lease *st_lease, uint32_t nip)
50	{	{
51	struct static_lease *cur = lease_struct;	while (st_lease) {
52		if (st_lease->nip == nip)
53	uint32_t return_val = 0;	return 1;
54		st_lease = st_lease->next;
	while (cur) {
	/* If the client has the correct ip  */
	if (*cur->ip == ip)
	return_val = 1;
	cur = cur->next;
55	}	}
56
57	return return_val;	return 0;
58	}	}
59
60	#if ENABLE_UDHCP_DEBUG	#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 2
61	/* Print out static leases just to check what's going on */	/* Print out static leases just to check what's going on */
62	/* Takes the address of the pointer to the static_leases linked list */	/* Takes the address of the pointer to the static_leases linked list */
63	void FAST_FUNC printStaticLeases(struct static_lease **arg)	void FAST_FUNC log_static_leases(struct static_lease **st_lease_pp)
64	{	{
65	/* Get a pointer to the linked list */	struct static_lease *cur;
	struct static_lease *cur = *arg;
66
67	while (cur) {	if (dhcp_verbose < 2)
68	/* printf("PrintStaticLeases: Lease mac Address: %x\n", cur->mac); */	return;
	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));
69
70		cur = *st_lease_pp;
71		while (cur) {
72		bb_info_msg("static lease: mac:%02x:%02x:%02x:%02x:%02x:%02x nip:%x",
73		cur->mac[0], cur->mac[1], cur->mac[2],
74		cur->mac[3], cur->mac[4], cur->mac[5],
75		cur->nip
76		);
77	cur = cur->next;	cur = cur->next;
78	}	}
79	}	}

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