117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
//
|
||
// Created by xajhuang on 2023/3/23.
|
||
//
|
||
|
||
#include <time.h>
|
||
#include "lease.h"
|
||
#include "user_errno.h"
|
||
#include "zlog_module.h"
|
||
#include "dhcp_network.h"
|
||
#include "db_interface.h"
|
||
#include "uthash/utlist.h"
|
||
|
||
//static PMAC_FILTER g_allowTbl = NULL;
|
||
//static PMAC_FILTER g_blackListTbl = NULL;
|
||
//static PPRE_ALLOC_IP g_pPreAllocIp = NULL;
|
||
|
||
U32 lease_is_pre_assign(PDHCP_REQ pReq) {
|
||
char macStr[20] = {0};
|
||
U32 ipAddr;
|
||
|
||
MAC_TO_STR(pReq->cliMac, macStr);
|
||
if (lease_get_pre_assign(pReq->uid, macStr, pReq->hostName, &ipAddr) == ERR_ITEM_EXISTS) {
|
||
return ipAddr;
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
int usr_lease_lock_ip(PDHCP_USER pUser, U32 ip) {
|
||
PLOCK_IP pLock = (PLOCK_IP)malloc(sizeof(LOCK_IP));
|
||
|
||
if (pLock) {
|
||
memset(pLock, 0, sizeof(LOCK_IP));
|
||
pLock->ip = ip;
|
||
HASH_ADD_INT(pUser->plockIp, ip, pLock);
|
||
return ERR_SUCCESS;
|
||
}
|
||
|
||
return -ERR_MALLOC_MEMORY;
|
||
}
|
||
|
||
//int pre_alloc_dhcp_res(U32 uid, const char *pMac, U32 *pOutIp, PIPPOOL_INFO *pOutPool) {
|
||
int pre_alloc_dhcp_res(PDHCP_REQ pReq, PDHCP_USER pUser, U32 *pOutIp, PPOOL_CTX *pOutPool) {
|
||
PPOOL_CTX pPool, pTemp;
|
||
|
||
if (pReq == NULL || pOutIp == NULL || pOutPool == NULL) {
|
||
LOG_MOD(error, ZM_DHCP_LEASE, "Input params error: %p, %p\n", pOutIp, pOutPool);
|
||
return -ERR_INPUT_PARAMS;
|
||
}
|
||
|
||
LL_FOREACH_SAFE(pUser->pUserPool, pPool, pTemp) {
|
||
U32 addr;
|
||
|
||
// 查看是否预分配过该设备
|
||
if ((addr = lease_is_pre_assign(pReq)) != 0) {
|
||
*pOutIp = addr;
|
||
*pOutPool = pPool;
|
||
return ERR_SUCCESS;
|
||
}
|
||
|
||
addr = pPool->minAddr;
|
||
do {
|
||
PLOCK_IP pLock;
|
||
|
||
HASH_FIND_INT(pUser->plockIp, &addr, pLock);
|
||
|
||
// 该 IP 可用
|
||
if (pLock == NULL) {
|
||
#if 1
|
||
if (lease_ip_is_pre_assign(pReq->uid, addr) == FALSE) {
|
||
usr_lease_lock_ip(pUser, addr);
|
||
*pOutIp = addr;
|
||
*pOutPool = pPool;
|
||
|
||
lease_db_add_pre_assign(pReq, addr, pPool);
|
||
|
||
return ERR_SUCCESS;
|
||
}
|
||
#else
|
||
usr_lease_lock_ip(pUser, addr);
|
||
*pOutIp = addr;
|
||
*pOutPool = pPool;
|
||
|
||
lease_db_add_pre_assign(pReq, addr, pPool);
|
||
// LOG_MOD(debug, ZM_DHCP_LEASE, "User %u(%u) prepar assign ipaddr %08X of %p\n", pReq->uid, pUser->uid,
|
||
// addr, pPool);
|
||
return ERR_SUCCESS;
|
||
#endif
|
||
}
|
||
|
||
addr++;
|
||
} while (addr <= pPool->maxAddr);
|
||
}
|
||
|
||
// 清理所有超时的预分配IP
|
||
lease_clearup_timeout_pre_assign();
|
||
// 没有可预分配的IP，报错
|
||
//LOG_MOD(error, ZM_DHCP_LEASE, "No free ipaddress in poll: uid = %u, pool = %p\n", pReq->uid, pUser->pUserPool);
|
||
return -ERR_DHCP_NO_ADDR;
|
||
}
|
||
|
||
int dhcp_lease_init() {
|
||
int rc;
|
||
|
||
rc = lease_init_database();
|
||
|
||
if (rc != ERR_SUCCESS) {
|
||
return rc;
|
||
}
|
||
|
||
// 清理所有超时的预分配IP
|
||
lease_clearup_timeout_pre_assign();
|
||
|
||
// lock 预分配 IP
|
||
lease_lock_pre_assign_ip();
|
||
return ERR_SUCCESS;
|
||
} |