wlan: Add Dhcp server offload feature
Add support to set the dhcp server offload.
dhcp info such as DHCP enable, server ip address,
number of clients, and start address of dhcp pool
will be sent to firmware.
Change-Id: Id24c355820287d77b0e4200b86b42fe80e6cd4f8
CRs-Fixed: 1091422
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index 39e1b2c..39c3303 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -9173,6 +9173,114 @@
return ret;
}
+#ifdef DHCP_SERVER_OFFLOAD
+void hdd_dhcp_server_offload_done(void *fw_dhcp_srv_offload_cb_context,
+ VOS_STATUS status)
+{
+ hdd_adapter_t* adapter = (hdd_adapter_t*)fw_dhcp_srv_offload_cb_context;
+
+ ENTER();
+
+ if (NULL == adapter)
+ {
+ hddLog(VOS_TRACE_LEVEL_ERROR,
+ "%s: adapter is NULL",__func__);
+ return;
+ }
+
+ adapter->dhcp_status.dhcp_offload_status = status;
+ vos_event_set(&adapter->dhcp_status.vos_event);
+ return;
+}
+
+/**
+ * wlan_hdd_set_dhcp_server_offload() - set dhcp server offload
+ * @hostapd_adapter: pointer to hostapd adapter.
+ *
+ * Return: None
+ */
+static VOS_STATUS wlan_hdd_set_dhcp_server_offload(hdd_adapter_t *hostapd_adapter)
+{
+ hdd_context_t *hdd_ctx = WLAN_HDD_GET_CTX(hostapd_adapter);
+ sir_dhcp_srv_offload_info dhcp_srv_info;
+ tANI_U8 num_entries = 0;
+ tANI_U8 srv_ip[IPADDR_NUM_ENTRIES];
+ tANI_U8 num;
+ tANI_U32 temp;
+ VOS_STATUS ret;
+
+ ENTER();
+
+ ret = wlan_hdd_validate_context(hdd_ctx);
+ if (0 != ret)
+ return VOS_STATUS_E_INVAL;
+
+ /* Prepare the request to send to SME */
+ dhcp_srv_info = vos_mem_malloc(sizeof(*dhcp_srv_info));
+ if (NULL == dhcp_srv_info) {
+ hddLog(VOS_TRACE_LEVEL_ERROR,
+ "%s: could not allocate tDhcpSrvOffloadInfo!", __func__);
+ return VOS_STATUS_E_NOMEM;
+ }
+
+ vos_mem_zero(dhcp_srv_info, sizeof(*dhcp_srv_info));
+
+ dhcp_srv_info->bssidx = hostapd_adapter->sessionId;
+ dhcp_srv_info->dhcp_srv_offload_enabled = TRUE;
+ dhcp_srv_info->dhcp_client_num = hdd_ctx->cfg_ini->dhcp_max_num_clients;
+ dhcp_srv_info->start_lsb = hdd_ctx->cfg_ini->dhcp_start_lsb;
+ dhcp_srv_info->dhcp_offload_callback = hdd_dhcp_server_offload_done;
+ dhcp_srv_info->dhcp_server_offload_cb_context = hostapd_adapter;
+
+ hdd_string_to_u8_array(hdd_ctx->cfg_ini->dhcp_srv_ip,
+ srv_ip,
+ &num_entries,
+ IPADDR_NUM_ENTRIES);
+ if (num_entries != IPADDR_NUM_ENTRIES) {
+ hddLog(VOS_TRACE_LEVEL_ERROR,
+ "%s: incorrect IP address (%s) assigned for DHCP server!",
+ __func__, hdd_ctx->cfg_ini->dhcp_srv_ip);
+ vos_mem_free(dhcp_srv_info);
+ return VOS_STATUS_E_FAILURE;
+ }
+
+ if ((srv_ip[0] >= 224) && (srv_ip[0] <= 239)) {
+ hddLog(VOS_TRACE_LEVEL_ERROR,
+ "%s: invalid IP address (%s)! It could NOT be multicast IP address!",
+ __func__, hdd_ctx->cfg_ini->dhcp_srv_ip);
+ vos_mem_free(dhcp_srv_info);
+ return VOS_STATUS_E_FAILURE;
+ }
+
+ if (srv_ip[IPADDR_NUM_ENTRIES-1] >= DHCP_START_POOL_ADDRESS) {
+ hddLog(VOS_TRACE_LEVEL_ERROR,
+ "%s: invalid IP address (%s)! The last field must be less than 100!",
+ __func__, hdd_ctx->cfg_ini->dhcp_srv_ip);
+ vos_mem_free(dhcp_srv_info);
+ return VOS_STATUS_E_FAILURE;
+ }
+
+ for (num = 0; num < num_entries; num++) {
+ temp = srv_ip[num];
+ dhcp_srv_info->dhcp_srv_ip |= (temp << (8 * num));
+ }
+
+ if (eHAL_STATUS_SUCCESS !=
+ sme_set_dhcp_srv_offload(hdd_ctx->hHal, dhcp_srv_info)) {
+ hddLog(VOS_TRACE_LEVEL_ERROR,
+ "%s: sme_set_dhcp_srv_offload fail!", __func__);
+ vos_mem_free(dhcp_srv_info);
+ return VOS_STATUS_E_FAILURE;
+ }
+
+ hddLog(VOS_TRACE_LEVEL_INFO_HIGH,
+ "%s: enable DHCP Server offload successfully!", __func__);
+
+ vos_mem_free(dhcp_srv_info);
+ return 0;
+}
+#endif /* DHCP_SERVER_OFFLOAD */
+
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0))
static int wlan_hdd_cfg80211_start_bss(hdd_adapter_t *pHostapdAdapter,
struct beacon_parameters *params)
@@ -9659,6 +9767,29 @@
hdd_wmm_init(pHostapdAdapter);
wlan_hdd_incr_active_session(pHddCtx, pHostapdAdapter->device_mode);
+#ifdef DHCP_SERVER_OFFLOAD
+ /* set dhcp server offload */
+ if (iniConfig->enable_dhcp_srv_offload &&
+ sme_IsFeatureSupportedByFW(SAP_OFFLOADS)) {
+ status = wlan_hdd_set_dhcp_server_offload(pHostapdAdapter);
+ if (!VOS_IS_STATUS_SUCCESS(status))
+ {
+ VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
+ ("HDD DHCP Server Offload Failed!!"));
+ return -EINVAL;
+ }
+ vos_event_reset(&pHostapdAdapter->dhcp_status.vos_event);
+ status = vos_wait_single_event(&pHostapdAdapter->dhcp_status.vos_event, 2000);
+ if (!VOS_IS_STATUS_SUCCESS(status) || pHostapdAdapter->dhcp_status.dhcp_offload_status)
+ {
+ VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR,
+ ("ERROR: DHCP HDD vos wait for single_event failed!! %d"),
+ pHostapdAdapter->dhcp_status.dhcp_offload_status);
+ return -EINVAL;
+ }
+ }
+#endif /* DHCP_SERVER_OFFLOAD */
+
#ifdef WLAN_FEATURE_P2P_DEBUG
if (pHostapdAdapter->device_mode == WLAN_HDD_P2P_GO)
{