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authorDenis Vlasenko2009-01-01 17:52:09 +0000
committerDenis Vlasenko2009-01-01 17:52:09 +0000
commit0416e3dde17ea9295635c52183b30fe3d7172333 (patch)
tree4eea1c401c74d6ec42f18c67090f73001103e0db /networking/udhcp/static_leases.c
parentb2ec03813c34bc3de2ddf9a0974be4e5b31ec757 (diff)
downloadbusybox-0416e3dde17ea9295635c52183b30fe3d7172333.zip
busybox-0416e3dde17ea9295635c52183b30fe3d7172333.tar.gz
udhcpd: disable opton to have absolute lease times in lease file
(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
Diffstat (limited to 'networking/udhcp/static_leases.c')
-rw-r--r--networking/udhcp/static_leases.c67
1 files changed, 23 insertions, 44 deletions
diff --git a/networking/udhcp/static_leases.c b/networking/udhcp/static_leases.c
index 7540f7f..1e77a58 100644
--- a/networking/udhcp/static_leases.c
+++ b/networking/udhcp/static_leases.c
@@ -15,69 +15,49 @@
/* 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 FAST_FUNC addStaticLease(struct static_lease **lease_struct, uint8_t *mac, uint32_t *ip)
+void FAST_FUNC 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 = xzalloc(sizeof(struct static_lease));
+ memcpy(new_static_lease->mac, mac, 6);
new_static_lease->ip = ip;
- new_static_lease->next = NULL;
+ /*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) {
+ struct static_lease *cur = *lease_struct;
+ while (cur->next)
cur = cur->next;
- }
-
cur->next = new_static_lease;
}
-
- return 1;
}
/* Check to see if a mac has an associated static lease */
-uint32_t FAST_FUNC getIpByMac(struct static_lease *lease_struct, void *arg)
+uint32_t FAST_FUNC getIpByMac(struct static_lease *lease_struct, void *mac)
{
- uint32_t return_ip;
- struct static_lease *cur = lease_struct;
- uint8_t *mac = arg;
-
- 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;
+ while (lease_struct) {
+ if (memcmp(lease_struct->mac, mac, 6) == 0)
+ return lease_struct->ip;
+ lease_struct = lease_struct->next;
}
- return return_ip;
+ return 0;
}
/* Check to see if an ip is reserved as a static ip */
-uint32_t FAST_FUNC reservedIp(struct static_lease *lease_struct, uint32_t ip)
+int FAST_FUNC reservedIp(struct static_lease *lease_struct, uint32_t ip)
{
- struct static_lease *cur = lease_struct;
-
- uint32_t return_val = 0;
-
- while (cur) {
- /* If the client has the correct ip */
- if (*cur->ip == ip)
- return_val = 1;
-
- cur = cur->next;
+ while (lease_struct) {
+ if (lease_struct->ip == ip)
+ return 1;
+ lease_struct = lease_struct->next;
}
- return return_val;
+ return 0;
}
#if ENABLE_UDHCP_DEBUG
@@ -85,15 +65,14 @@ uint32_t FAST_FUNC reservedIp(struct static_lease *lease_struct, uint32_t ip)
/* Takes the address of the pointer to the static_leases linked list */
void FAST_FUNC printStaticLeases(struct static_lease **arg)
{
- /* Get a pointer to the linked list */
struct static_lease *cur = *arg;
while (cur) {
- /* 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));
-
+ 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;
}
}