/*****************************************************************************
函 数 名 : hmac_roam_find_in_blacklist
功能描述 : 检查列表中是否存在该bssid
输入参数 :
输出参数 : 无
返 回 值 : OAL_SUCC 或 失败错误码
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2015年7月8日
作 者 : g00260350
修改内容 : 新生成函数
*****************************************************************************/
OAL_STATIC oal_bool_enum_uint8 hmac_roam_alg_find_in_bsslist(hmac_roam_bss_list_stru *pst_roam_bss_list, oal_uint8 *puc_bssid)
{
hmac_roam_bss_info_stru *pst_cur_bss;
oal_uint32 ul_current_index;
oal_uint32 ul_now;
oal_uint32 ul_timeout;
oal_uint32 ul_delta_time;
oal_uint16 us_count_limit;
ul_now = (oal_uint32)OAL_TIME_GET_STAMP_MS();
for (ul_current_index = 0; ul_current_index < ROAM_LIST_MAX; ul_current_index++)
{
pst_cur_bss = &pst_roam_bss_list->ast_bss[ul_current_index];
ul_timeout = pst_cur_bss->ul_timeout;
us_count_limit = pst_cur_bss->us_count_limit;
if (0 == oal_compare_mac_addr(pst_cur_bss->auc_bssid, puc_bssid))
{
/* 如果在超时时间内出现count_limit次以上记录 */
ul_delta_time = OAL_TIME_GET_RUNTIME(pst_cur_bss->ul_time_stamp, ul_now);
if ((ul_delta_time <= ul_timeout) &&
(pst_cur_bss->us_count >= us_count_limit))
{
return OAL_TRUE;
}
return OAL_FALSE;
}
}
return OAL_FALSE;
}
/*****************************************************************************
函 数 名 : hmac_roam_alg_bss_check
功能描述 :
输入参数 :
输出参数 : 无
返 回 值 : OAL_SUCC 或 失败错误码
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2015年7月10日
作 者 : g00260350
修改内容 : 新生成函数
*****************************************************************************/
mac_bss_dscr_stru *hmac_roam_alg_select_bss(hmac_roam_info_stru *pst_roam_info)
{
hmac_vap_stru *pst_hmac_vap;
mac_vap_stru *pst_mac_vap;
mac_bss_dscr_stru *pst_bss_dscr;
hmac_roam_alg_stru *pst_roam_alg;
oal_int8 c_delta_rssi;
if (OAL_PTR_NULL == pst_roam_info)
{
return OAL_PTR_NULL;
}
pst_hmac_vap = pst_roam_info->pst_hmac_vap;
if (OAL_PTR_NULL == pst_hmac_vap)
{
return OAL_PTR_NULL;
}
pst_mac_vap = &(pst_hmac_vap->st_vap_base_info);
pst_roam_alg = &(pst_roam_info->st_alg);
/* 取得最大 rssi 的 bss */
pst_bss_dscr = pst_roam_alg->pst_max_rssi_bss;
if ((OAL_PTR_NULL != pst_roam_alg->pst_max_capacity_bss) && (pst_roam_alg->ul_max_capacity >= ROAM_THROUGHPUT_THRESHOLD))
{
/* 取得最大 capacity 的 bss*/
pst_bss_dscr = pst_roam_alg->pst_max_capacity_bss;
}
if(OAL_PTR_NULL == pst_bss_dscr)
{
/* should not be here */
return OAL_PTR_NULL;
}
/* 过滤当前关联的 bss */
if (0 == oal_compare_mac_addr(pst_mac_vap->auc_bssid, pst_bss_dscr->auc_bssid))
{
return OAL_PTR_NULL;
}
/* rssi增益处理 */
c_delta_rssi = hmac_roam_alg_adjust_rssi_increase(pst_roam_info, pst_bss_dscr);
if (c_delta_rssi <= 0)
{
return OAL_PTR_NULL;
}
return pst_bss_dscr;
}
/*****************************************************************************
函 数 名 : hmac_roam_alg_bss_in_ess
功能描述 :
输入参数 :
输出参数 : 无
返 回 值 : OAL_SUCC 或 失败错误码
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2015年11月25日
作 者 : g00260350
修改内容 : 新生成函数
*****************************************************************************/
oal_uint32 hmac_roam_alg_bss_in_ess(hmac_roam_info_stru *pst_roam_info, mac_bss_dscr_stru *pst_bss_dscr)
{
hmac_vap_stru *pst_hmac_vap;
mac_vap_stru *pst_mac_vap;
hmac_roam_alg_stru *pst_roam_alg;
mac_cfg_ssid_param_stru st_cfg_ssid;
oal_uint8 uc_stru_len;
if ((OAL_PTR_NULL == pst_roam_info) || (OAL_PTR_NULL == pst_bss_dscr))
{
OAM_ERROR_LOG0(0, OAM_SF_ROAM, "{hmac_roam_alg_bss_in_ess::param null.}");
return OAL_ERR_CODE_PTR_NULL;
}
pst_hmac_vap = pst_roam_info->pst_hmac_vap;
if (OAL_PTR_NULL == pst_hmac_vap)
{
return OAL_ERR_CODE_ROAM_INVALID_VAP;
}
pst_mac_vap = &(pst_hmac_vap->st_vap_base_info);
mac_mib_get_ssid(pst_mac_vap, &uc_stru_len, (oal_uint8 *)(&st_cfg_ssid));
if ((OAL_STRLEN(pst_bss_dscr->ac_ssid) != st_cfg_ssid.uc_ssid_len) ||
(0 != oal_memcmp(st_cfg_ssid.ac_ssid, pst_bss_dscr->ac_ssid, st_cfg_ssid.uc_ssid_len)))
{
return OAL_SUCC;
}
pst_roam_alg = &(pst_roam_info->st_alg);
/* 是否扫描到了当前关联的 bss, 仅置位，不过滤 */
if (0 != oal_compare_mac_addr(pst_mac_vap->auc_bssid, pst_bss_dscr->auc_bssid))
{
pst_roam_alg->uc_another_bss_scaned = 1;
hmac_roam_ignore_rssi_trigger(pst_hmac_vap, OAL_FALSE);
}
return OAL_SUCC;
}
oal_netbuf_stru* hmac_defrag_process(hmac_user_stru *pst_hmac_user, oal_netbuf_stru *pst_netbuf, oal_uint32 ul_hrdsize)
{
mac_ieee80211_frame_stru *pst_mac_hdr = OAL_PTR_NULL;
mac_ieee80211_frame_stru *pst_last_hdr = OAL_PTR_NULL;
oal_uint16 us_rx_seq = 0;
oal_uint16 us_last_seq = 0;
oal_uint8 uc_frag_num = 0;
oal_uint8 uc_last_frag_num = 0;
oal_bool_enum_uint8 en_more_frag = OAL_FALSE;
oal_netbuf_stru *pst_new_buf = OAL_PTR_NULL;
mac_rx_ctl_stru *pst_rx_ctl;
oal_uint32 ul_ret;
oal_uint8 uc_device_id;
mac_device_stru *pst_mac_device;
oal_uint32 ul_core_id;
pst_mac_hdr = (mac_ieee80211_frame_stru *)oal_netbuf_data(pst_netbuf);
us_rx_seq = pst_mac_hdr->bit_seq_num;
uc_frag_num = (oal_uint8)pst_mac_hdr->bit_frag_num;
en_more_frag = (oal_bool_enum_uint8)pst_mac_hdr->st_frame_control.bit_more_frag;
/* 如果没有什么可以去分片的则直接返回 */
if (!en_more_frag && 0 == uc_frag_num && OAL_PTR_NULL == pst_hmac_user->pst_defrag_netbuf)
{
return pst_netbuf;
}
OAL_MEM_NETBUF_TRACE(pst_netbuf, OAL_FALSE);
/* 首先检查到来的分片报文是不是属于正在重组的分片报文 */
if (pst_hmac_user->pst_defrag_netbuf)
{
frw_timer_restart_timer(&pst_hmac_user->st_defrag_timer, HMAC_FRAG_TIMEOUT, OAL_FALSE);
pst_last_hdr = (mac_ieee80211_frame_stru *)oal_netbuf_data(pst_hmac_user->pst_defrag_netbuf);
us_last_seq = pst_last_hdr->bit_seq_num;
uc_last_frag_num = (oal_uint8)pst_last_hdr->bit_frag_num;
/* 如果地址不匹配，序列号不匹配，分片号不匹配则释放现在正在重组的报文 */
if (us_rx_seq != us_last_seq ||
uc_frag_num != (uc_last_frag_num + 1) ||
oal_compare_mac_addr(pst_last_hdr->auc_address1, pst_mac_hdr->auc_address1) ||
oal_compare_mac_addr(pst_last_hdr->auc_address2, pst_mac_hdr->auc_address2))
{
oal_netbuf_free(pst_hmac_user->pst_defrag_netbuf);
FRW_TIMER_IMMEDIATE_DESTROY_TIMER(&pst_hmac_user->st_defrag_timer);
pst_hmac_user->pst_defrag_netbuf = OAL_PTR_NULL;
}
}
/* 判断到来的分片报文是否是第一个分片 */
if (OAL_PTR_NULL == pst_hmac_user->pst_defrag_netbuf)
{
/* 首片分片的分片号不为0则释放 */
if (uc_frag_num != 0)
{
oal_netbuf_free(pst_netbuf);
OAM_STAT_VAP_INCR(pst_hmac_user->st_user_base_info.uc_vap_id, rx_defrag_process_dropped, 1);
OAM_INFO_LOG3(pst_hmac_user->st_user_base_info.uc_vap_id, OAM_SF_ANY,
"{hmac_defrag_process::The first frag_num is not Zero(%d), seq_num[%d], mor_frag[%d].}",
uc_frag_num, us_rx_seq, en_more_frag);
return OAL_PTR_NULL;
}
/* 没有分片,直接返回 */
if (0 == en_more_frag && 0 == uc_frag_num)
{
return pst_netbuf;
}
uc_device_id = pst_hmac_user->st_user_base_info.uc_device_id;
pst_mac_device = mac_res_get_dev((oal_uint32)uc_device_id);
if (OAL_PTR_NULL == pst_mac_device)
{
OAM_ERROR_LOG4(pst_hmac_user->st_user_base_info.uc_vap_id, OAM_SF_ANY,
"{hmac_defrag_process::user index[%d] user mac:XX:XX:XX:%02X:%02X:%02X}",
pst_hmac_user->st_user_base_info.us_assoc_id,
pst_hmac_user->st_user_base_info.auc_user_mac_addr[3],
pst_hmac_user->st_user_base_info.auc_user_mac_addr[4],
pst_hmac_user->st_user_base_info.auc_user_mac_addr[5]);
/* user异常，丢弃报文 */
oal_netbuf_free(pst_netbuf);
OAM_STAT_VAP_INCR(pst_hmac_user->st_user_base_info.uc_vap_id, rx_defrag_process_dropped, 1);
return OAL_PTR_NULL;
}
ul_core_id = pst_mac_device->ul_core_id;
/* 启动超时定时器，超时释放重组报文 */
FRW_TIMER_CREATE_TIMER(&pst_hmac_user->st_defrag_timer,
hmac_defrag_timeout_fn,
HMAC_FRAG_TIMEOUT,
pst_hmac_user,
OAL_FALSE,
OAM_MODULE_ID_HMAC,
ul_core_id);
/* 内存池netbuf只有1600 可能不够，参照A公司申请2500操作系统原生态报文 */
pst_new_buf = OAL_MEM_NETBUF_ALLOC(OAL_NORMAL_NETBUF, HMAC_MAX_FRAG_SIZE, OAL_NETBUF_PRIORITY_MID);
if (OAL_PTR_NULL == pst_new_buf)
{
OAM_ERROR_LOG1(pst_hmac_user->st_user_base_info.uc_vap_id, OAM_SF_ANY, "{hmac_defrag_process::Alloc new_buf null,size[%d].}", HMAC_MAX_FRAG_SIZE);
return OAL_PTR_NULL;
}
OAL_MEM_NETBUF_TRACE(pst_new_buf, OAL_FALSE);
/* 将分片报文拷贝到新申请的报文中并挂接到用户结构体下，释放原有的报文 */
oal_netbuf_init(pst_new_buf, OAL_NETBUF_LEN(pst_netbuf));
oal_netbuf_copydata(pst_netbuf, 0, oal_netbuf_data(pst_new_buf), OAL_NETBUF_LEN(pst_netbuf));
oal_memcopy(OAL_NETBUF_CB(pst_new_buf), OAL_NETBUF_CB(pst_netbuf), MAC_TX_CTL_SIZE);
pst_rx_ctl = (mac_rx_ctl_stru *)OAL_NETBUF_CB(pst_new_buf);
pst_rx_ctl->pul_mac_hdr_start_addr = (oal_uint32 *)OAL_NETBUF_HEADER(pst_new_buf);
pst_hmac_user->pst_defrag_netbuf = pst_new_buf;
oal_netbuf_free(pst_netbuf);
pst_netbuf = pst_new_buf;
}
else
{
if (OAL_UNLIKELY(OAL_PTR_NULL == pst_last_hdr))
{
OAM_ERROR_LOG0(pst_hmac_user->st_user_base_info.uc_vap_id, OAM_SF_ANY, "{hmac_defrag_process::pst_last_hdr is NULL.}");
return OAL_PTR_NULL;
}
/* 此分片是期望的到来的分片，重启定时器，并进行重组 */
frw_timer_restart_timer(&pst_hmac_user->st_defrag_timer, HMAC_FRAG_TIMEOUT, OAL_FALSE);
oal_netbuf_pull(pst_netbuf, ul_hrdsize);
/* 记录最新分片报文的分片号 */
pst_last_hdr->bit_seq_num = pst_mac_hdr->bit_seq_num;
pst_last_hdr->bit_frag_num = pst_mac_hdr->bit_frag_num;
/*此接口内会调用dev_kfree_skb*/
oal_netbuf_concat(pst_hmac_user->pst_defrag_netbuf, pst_netbuf);
}
/* 判断是否重组完毕，存在更多报文返回空指针，重组完毕返回组好的报文 */
if (en_more_frag)
{
pst_netbuf = OAL_PTR_NULL;
}
else
{
if (OAL_UNLIKELY(OAL_PTR_NULL == pst_last_hdr))
{
OAM_ERROR_LOG0(pst_hmac_user->st_user_base_info.uc_vap_id, OAM_SF_ANY, "{hmac_defrag_process::pst_last_hdr is NULL.}");
oal_netbuf_free(pst_netbuf);
pst_hmac_user->pst_defrag_netbuf = OAL_PTR_NULL;
return OAL_PTR_NULL;
}
pst_netbuf = pst_hmac_user->pst_defrag_netbuf;
/* 对重组好的报文进行mic检查 */
ul_ret = hmac_de_mic(pst_hmac_user, pst_netbuf);
if (OAL_SUCC != ul_ret)
{
oal_netbuf_free(pst_netbuf);
OAM_STAT_VAP_INCR(pst_hmac_user->st_user_base_info.uc_vap_id, rx_de_mic_fail_dropped, 1);
pst_netbuf = OAL_PTR_NULL;
OAM_INFO_LOG1(pst_hmac_user->st_user_base_info.uc_vap_id, OAM_SF_ANY, "{hmac_defrag_process::hmac_de_mic failed[%d].}", ul_ret);
}
pst_hmac_user->pst_defrag_netbuf = OAL_PTR_NULL;
pst_last_hdr->bit_frag_num = 0;
FRW_TIMER_IMMEDIATE_DESTROY_TIMER(&pst_hmac_user->st_defrag_timer);
}
return pst_netbuf;
}
/*****************************************************************************
函 数 名 : hmac_roam_alg_bss_check
功能描述 :
输入参数 :
输出参数 : 无
返 回 值 : OAL_SUCC 或 失败错误码
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2015年3月18日
作 者 : g00260350
修改内容 : 新生成函数
*****************************************************************************/
oal_uint32 hmac_roam_alg_bss_check(hmac_roam_info_stru *pst_roam_info, mac_bss_dscr_stru *pst_bss_dscr)
{
hmac_vap_stru *pst_hmac_vap;
mac_vap_stru *pst_mac_vap;
hmac_roam_alg_stru *pst_roam_alg;
mac_cap_info_stru *pst_cap_info;
oal_uint8 *puc_pmkid;
mac_cfg_ssid_param_stru st_cfg_ssid;
oal_uint32 ul_ret;
oal_uint32 ul_avail_channel_capacity;
oal_uint8 uc_stru_len;
oal_int8 c_delta_rssi;
oal_int8 c_tmp_rssi;
if ((OAL_PTR_NULL == pst_roam_info) || (OAL_PTR_NULL == pst_bss_dscr))
{
OAM_ERROR_LOG0(0, OAM_SF_ROAM, "{hmac_roam_alg_bss_check::param null.}");
return OAL_ERR_CODE_PTR_NULL;
}
pst_hmac_vap = pst_roam_info->pst_hmac_vap;
if (OAL_PTR_NULL == pst_hmac_vap)
{
return OAL_ERR_CODE_ROAM_INVALID_VAP;
}
pst_mac_vap = &(pst_hmac_vap->st_vap_base_info);
mac_mib_get_ssid(pst_mac_vap, &uc_stru_len, (oal_uint8 *)(&st_cfg_ssid));
if ((OAL_STRLEN(pst_bss_dscr->ac_ssid) != st_cfg_ssid.uc_ssid_len) ||
(0 != oal_memcmp(st_cfg_ssid.ac_ssid, pst_bss_dscr->ac_ssid, st_cfg_ssid.uc_ssid_len)))
{
return OAL_SUCC;
}
pst_roam_alg = &(pst_roam_info->st_alg);
/* 挑选HMAC_SCAN_MAX_VALID_SCANNED_BSS_EXPIRE时间以内的有效bss */
if (oal_time_after((oal_uint32)OAL_TIME_GET_STAMP_MS(),(pst_bss_dscr->ul_timestamp + HMAC_SCAN_MAX_VALID_SCANNED_BSS_EXPIRE)))
{
return OAL_SUCC;
}
/* 检查黑名单 */
ul_ret = hmac_roam_alg_find_in_blacklist(pst_roam_info, pst_bss_dscr->auc_bssid);
if (OAL_TRUE == ul_ret)
{
OAM_WARNING_LOG3(0, OAM_SF_ROAM,"{hmac_roam_alg_bss_check:: [%02X:XX:XX:XX:%02X:%02X] in blacklist!}",
pst_bss_dscr->auc_bssid[0], pst_bss_dscr->auc_bssid[4], pst_bss_dscr->auc_bssid[5]);
return OAL_SUCC;
}
/* 排除当前bss的rssi值计算，本地已经保存了dmac上报的rssi */
if (0 == oal_compare_mac_addr(pst_mac_vap->auc_bssid, pst_bss_dscr->auc_bssid))
{
return OAL_SUCC;
}
/* wep的bss直接过滤掉 */
pst_cap_info = (mac_cap_info_stru *)&pst_bss_dscr->us_cap_info;
if ((0 == pst_bss_dscr->st_bss_sec_info.uc_bss_80211i_mode) &&
(0 != pst_cap_info->bit_privacy))
{
return OAL_SUCC;
}
/* open加密方式到wpa/wpa2直接过滤掉 */
/*lint -e731*/
if ((0 == pst_cap_info->bit_privacy) != (OAL_TRUE != mac_mib_get_privacyinvoked(&pst_hmac_vap->st_vap_base_info)))
{
return OAL_SUCC;
}
/*lint +e731*/
/* c_current_rssi为0时，表示linkloss上报的触发，不需要考虑rssi增益 */
c_delta_rssi = hmac_roam_alg_adjust_rssi_increase(pst_roam_info, pst_bss_dscr);
if (c_delta_rssi <= 0)
{
return OAL_SUCC;
}
ul_avail_channel_capacity = hmac_roam_alg_calc_avail_channel_capacity(pst_bss_dscr);
if ((0 != ul_avail_channel_capacity) &&
((OAL_PTR_NULL == pst_roam_alg->pst_max_capacity_bss) ||
(ul_avail_channel_capacity > pst_roam_alg->ul_max_capacity)))
{
//暂时不考虑容量
//pst_roam_alg->ul_max_capacity = ul_avail_channel_capacity;
//pst_roam_alg->pst_max_capacity_bss = pst_bss_dscr;
}
c_tmp_rssi = pst_bss_dscr->c_rssi;
/* 对于已存在pmk缓存的bss进行加分处理 */
puc_pmkid = hmac_vap_get_pmksa(pst_hmac_vap, pst_bss_dscr->auc_bssid);
if (OAL_PTR_NULL != puc_pmkid)
{
c_tmp_rssi += ROAM_RSSI_DIFF_4_DB;
}
if ((OAL_PTR_NULL == pst_roam_alg->pst_max_rssi_bss) ||
(c_tmp_rssi > pst_roam_alg->c_max_rssi))
{
pst_roam_alg->c_max_rssi = c_tmp_rssi;
pst_roam_alg->pst_max_rssi_bss = pst_bss_dscr;
}
return OAL_SUCC;
}
/*****************************************************************************
函 数 名 : hmac_roam_alg_add_list
功能描述 : 将bssid添加到列表中
输入参数 :
输出参数 : 无
返 回 值 : OAL_SUCC 或 失败错误码
调用函数 :
被调函数 :
修改历史 :
1.日 期 : 2015年7月8日
作 者 : g00260350
修改内容 : 新生成函数
*****************************************************************************/
OAL_STATIC oal_uint32 hmac_roam_alg_add_bsslist(hmac_roam_bss_list_stru *pst_roam_bss_list, oal_uint8 *puc_bssid, roam_blacklist_type_enum_uint8 list_type)
{
hmac_roam_bss_info_stru *pst_cur_bss;
hmac_roam_bss_info_stru *pst_oldest_bss;
hmac_roam_bss_info_stru *pst_zero_bss;
oal_uint8 auc_mac_zero[WLAN_MAC_ADDR_LEN] = {0};
oal_uint32 ul_current_index;
oal_uint32 ul_now;
oal_uint32 ul_timeout;
pst_oldest_bss = OAL_PTR_NULL;
pst_zero_bss = OAL_PTR_NULL;
ul_now = (oal_uint32)OAL_TIME_GET_STAMP_MS();
for (ul_current_index = 0; ul_current_index < ROAM_LIST_MAX; ul_current_index++)
{
pst_cur_bss = &pst_roam_bss_list->ast_bss[ul_current_index];
ul_timeout = (oal_uint32)pst_cur_bss->ul_timeout;
if (0 == oal_compare_mac_addr(pst_cur_bss->auc_bssid, puc_bssid))
{
/* 优先查找已存在的记录，如果名单超时更新时间戳，否则更新count */
if (OAL_TIME_GET_RUNTIME(pst_cur_bss->ul_time_stamp, ul_now) > ul_timeout)
{
pst_cur_bss->ul_time_stamp = ul_now;
pst_cur_bss->us_count = 1;
}
else
{
pst_cur_bss->us_count++;
if(pst_cur_bss->us_count == pst_cur_bss->us_count_limit)
{
pst_cur_bss->ul_time_stamp = ul_now;
}
}
return OAL_SUCC;
}
/* 记录第一个空记录 */
if (OAL_PTR_NULL != pst_zero_bss)
{
continue;
}
if (0 == oal_compare_mac_addr(pst_cur_bss->auc_bssid, auc_mac_zero))
{
pst_zero_bss = pst_cur_bss;
continue;
}
/* 记录一个非空最老记录 */
if (OAL_PTR_NULL == pst_oldest_bss)
{
pst_oldest_bss = pst_cur_bss;
}
else
{
if (OAL_TIME_GET_RUNTIME(pst_cur_bss->ul_time_stamp, ul_now) >
OAL_TIME_GET_RUNTIME(pst_oldest_bss->ul_time_stamp, ul_now))
{
pst_oldest_bss = pst_cur_bss;
}
}
}
if (OAL_PTR_NULL == pst_zero_bss)
{
pst_zero_bss = pst_oldest_bss;
}
if (OAL_PTR_NULL != pst_zero_bss)
{
oal_set_mac_addr(pst_zero_bss->auc_bssid, puc_bssid);
pst_zero_bss->ul_time_stamp = ul_now;
pst_zero_bss->us_count = 1;
return OAL_SUCC;
}
return OAL_FAIL;
}
oal_uint32 hmac_roam_alg_bss_check(hmac_roam_info_stru *pst_roam_info, mac_bss_dscr_stru *pst_bss_dscr)
{
hmac_vap_stru *pst_hmac_vap;
mac_vap_stru *pst_mac_vap;
hmac_roam_alg_stru *pst_roam_alg;
mac_cap_info_stru *pst_cap_info;
mac_cfg_ssid_param_stru st_cfg_ssid;
oal_uint32 ul_ret;
oal_uint32 ul_avail_channel_capacity;
oal_uint8 uc_stru_len;
oal_int8 c_delta_rssi;
if ((OAL_PTR_NULL == pst_roam_info) || (OAL_PTR_NULL == pst_bss_dscr))
{
OAM_ERROR_LOG0(0, OAM_SF_ROAM, "{hmac_roam_alg_bss_check::param null.}");
return OAL_ERR_CODE_PTR_NULL;
}
pst_hmac_vap = pst_roam_info->pst_hmac_vap;
if (OAL_PTR_NULL == pst_hmac_vap)
{
return OAL_ERR_CODE_ROAM_INVALID_VAP;
}
pst_mac_vap = &(pst_hmac_vap->st_vap_base_info);
mac_mib_get_ssid(pst_mac_vap, &uc_stru_len, (oal_uint8 *)(&st_cfg_ssid));
if ((OAL_STRLEN(pst_bss_dscr->ac_ssid) != st_cfg_ssid.uc_ssid_len) ||
(0 != oal_memcmp(st_cfg_ssid.ac_ssid, pst_bss_dscr->ac_ssid, st_cfg_ssid.uc_ssid_len)))
{
return OAL_SUCC;
}
pst_roam_alg = &(pst_roam_info->st_alg);
/* 检查黑名单 */
ul_ret = hmac_roam_alg_find_in_blacklist(pst_roam_info, pst_bss_dscr->auc_bssid);
if (OAL_TRUE == ul_ret)
{
return OAL_SUCC;
}
/* 排除当前bss的rssi值计算，本地已经保存了dmac上报的rssi */
if (0 == oal_compare_mac_addr(pst_mac_vap->auc_bssid, pst_bss_dscr->auc_bssid))
{
return OAL_SUCC;
}
/* wep的bss直接过滤掉 */
pst_cap_info = (mac_cap_info_stru *)&pst_bss_dscr->us_cap_info;
if ((0 == pst_bss_dscr->st_bss_sec_info.uc_bss_80211i_mode) &&
(0 != pst_cap_info->bit_privacy))
{
return OAL_SUCC;
}
/* open加密方式到wpa/wpa2直接过滤掉 */
/*lint -e731*/
if ((0 == pst_cap_info->bit_privacy) != (OAL_TRUE != mac_mib_get_privacyinvoked(&pst_hmac_vap->st_vap_base_info)))
{
return OAL_SUCC;
}
/*lint +e731*/
/* c_current_rssi为0时，表示linkloss上报的触发，不需要考虑rssi增益 */
c_delta_rssi = hmac_roam_alg_adjust_rssi_increase(pst_roam_info, pst_bss_dscr);
if (c_delta_rssi <= 0)
{
return OAL_SUCC;
}
ul_avail_channel_capacity = hmac_roam_alg_calc_avail_channel_capacity(pst_bss_dscr);
if ((0 != ul_avail_channel_capacity) &&
((OAL_PTR_NULL == pst_roam_alg->pst_max_capacity_bss) ||
(ul_avail_channel_capacity > pst_roam_alg->ul_max_capacity)))
{
//暂时不考虑容量
//pst_roam_alg->ul_max_capacity = ul_avail_channel_capacity;
//pst_roam_alg->pst_max_capacity_bss = pst_bss_dscr;
}
if ((OAL_PTR_NULL == pst_roam_alg->pst_max_rssi_bss) ||
(pst_bss_dscr->c_rssi > pst_roam_alg->c_max_rssi))
{
pst_roam_alg->c_max_rssi = pst_bss_dscr->c_rssi;
pst_roam_alg->pst_max_rssi_bss = pst_bss_dscr;
}
return OAL_SUCC;
}
OAL_STATIC oal_uint32 hmac_roam_alg_add_bsslist(hmac_roam_bss_list_stru *pst_roam_bss_list, oal_uint8 *puc_bssid, roam_blacklist_type_enum_uint8 list_type)
{
hmac_roam_bss_info_stru *pst_cur_bss;
hmac_roam_bss_info_stru *pst_oldest_bss;
hmac_roam_bss_info_stru *pst_zero_bss;
oal_uint8 auc_mac_zero[WLAN_MAC_ADDR_LEN] = {0};
oal_uint32 ul_current_index;
oal_uint32 ul_now;
oal_uint32 ul_timeout;
pst_oldest_bss = OAL_PTR_NULL;
pst_zero_bss = OAL_PTR_NULL;
ul_now = (oal_uint32)OAL_TIME_GET_STAMP_MS();
for (ul_current_index = 0; ul_current_index < ROAM_LIST_MAX; ul_current_index++)
{
pst_cur_bss = &pst_roam_bss_list->ast_bss[ul_current_index];
ul_timeout = (oal_uint32)pst_cur_bss->ul_timeout;
if (0 == oal_compare_mac_addr(pst_cur_bss->auc_bssid, puc_bssid))
{
/* 优先查找已存在的记录，如果名单超时更新时间戳，否则更新count */
if (OAL_TIME_GET_RUNTIME(pst_cur_bss->ul_time_stamp, ul_now) > ul_timeout)
{
pst_cur_bss->ul_time_stamp = ul_now;
pst_cur_bss->us_count = 1;
/*漫游黑名单，以后有用*/
if(ROAM_BLACKLIST_TYPE_REJECT_AP == list_type)
{
pst_cur_bss->ul_timeout = ROAM_BLACKLIST_REJECT_AP_TIME_OUT;
}
}
else
{
pst_cur_bss->us_count++;
if(pst_cur_bss->us_count == pst_cur_bss->us_count_limit)
{
pst_cur_bss->ul_time_stamp = ul_now;
OAM_WARNING_LOG4(0, OAM_SF_ROAM,"{hmac_roam_alg_add_bsslist:: add new, [%02X:XX:XX:%02X:%02X:%02X]}",
pst_cur_bss->auc_bssid[0],pst_cur_bss->auc_bssid[3],pst_cur_bss->auc_bssid[4],pst_cur_bss->auc_bssid[5]);
}
}
return OAL_SUCC;
}
/* 记录第一个空记录 */
if (OAL_PTR_NULL != pst_zero_bss)
{
continue;
}
if (0 == oal_compare_mac_addr(pst_cur_bss->auc_bssid, auc_mac_zero))
{
pst_zero_bss = pst_cur_bss;
continue;
}
/* 记录一个非空最老记录 */
if (OAL_PTR_NULL == pst_oldest_bss)
{
pst_oldest_bss = pst_cur_bss;
}
else
{
if (OAL_TIME_GET_RUNTIME(pst_cur_bss->ul_time_stamp, ul_now) >
OAL_TIME_GET_RUNTIME(pst_oldest_bss->ul_time_stamp, ul_now))
{
pst_oldest_bss = pst_cur_bss;
}
}
}
if (OAL_PTR_NULL == pst_zero_bss)
{
pst_zero_bss = pst_oldest_bss;
}
if (OAL_PTR_NULL != pst_zero_bss)
{
oal_set_mac_addr(pst_zero_bss->auc_bssid, puc_bssid);
pst_zero_bss->ul_time_stamp = ul_now;
pst_zero_bss->us_count = 1;
return OAL_SUCC;
}
return OAL_FAIL;
}
