1 /*
2  * Copyright (c) 2023 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #include <string.h>
17 #include <stdlib.h>
18 #include <osal_mem.h>
19 #include <pthread.h>
20 
21 #include "hdf_log.h"
22 #include "securec.h"
23 #include "hostapd_client.h"
24 
25 #ifdef __cplusplus
26 #if __cplusplus
27 extern "C" {
28 #endif
29 #endif
30 
31 #ifndef EOK
32 #define EOK 0
33 #endif
34 
35 #define MAX_CALL_BACK_COUNT 10
36 static struct HostapdCallbackEvent *g_hostapdCallbackEventMap[MAX_CALL_BACK_COUNT] = {NULL};
37 static pthread_mutex_t g_hostapdCallbackMutex = PTHREAD_MUTEX_INITIALIZER;
38 
HostapdRegisterEventCallback(OnReceiveFunc onRecFunc,uint32_t eventType,const char * ifName)39 int32_t HostapdRegisterEventCallback(OnReceiveFunc onRecFunc, uint32_t eventType, const char *ifName)
40 {
41     uint32_t i;
42     struct HostapdCallbackEvent *callbackEvent = NULL;
43 
44     if (onRecFunc == NULL || ifName == NULL) {
45         HDF_LOGE("%s: input parameter invalid, line: %d", __FUNCTION__, __LINE__);
46         return -1;
47     }
48     pthread_mutex_lock(&g_hostapdCallbackMutex);
49     for (i = 0; i < MAX_CALL_BACK_COUNT; i++) {
50         if (g_hostapdCallbackEventMap[i] != NULL  && (strcmp(g_hostapdCallbackEventMap[i]->ifName, ifName) == 0)
51             && g_hostapdCallbackEventMap[i]->onRecFunc == onRecFunc) {
52             HDF_LOGI("%s the onRecFunc has been registered!", __FUNCTION__);
53             pthread_mutex_unlock(&g_hostapdCallbackMutex);
54             return 0;
55         }
56     }
57     pthread_mutex_unlock(&g_hostapdCallbackMutex);
58     callbackEvent = (struct HostapdCallbackEvent *)malloc(sizeof(struct HostapdCallbackEvent));
59     if (callbackEvent == NULL) {
60         HDF_LOGE("%s fail: malloc fail!", __FUNCTION__);
61         return -1;
62     }
63     callbackEvent->eventType = eventType;
64     if (strcpy_s(callbackEvent->ifName, IFNAMSIZ, ifName) != 0) {
65         free(callbackEvent);
66         HDF_LOGE("%s: ifName strcpy_s fail", __FUNCTION__);
67         return -1;
68     }
69     callbackEvent->onRecFunc = onRecFunc;
70     pthread_mutex_lock(&g_hostapdCallbackMutex);
71     for (i = 0; i < MAX_CALL_BACK_COUNT; i++) {
72         if (g_hostapdCallbackEventMap[i] == NULL) {
73             g_hostapdCallbackEventMap[i] = callbackEvent;
74             HDF_LOGD("%s: WifiRegisterEventCallback successful", __FUNCTION__);
75             HDF_LOGD("%s: callbackEvent->eventType =%d ", __FUNCTION__, callbackEvent->eventType);
76             pthread_mutex_unlock(&g_hostapdCallbackMutex);
77             return 0;
78         }
79     }
80     pthread_mutex_unlock(&g_hostapdCallbackMutex);
81     free(callbackEvent);
82     HDF_LOGE("%s fail: register onRecFunc num more than %d!", __FUNCTION__, MAX_CALL_BACK_COUNT);
83     return -1;
84 }
85 
HostapdUnregisterEventCallback(OnReceiveFunc onRecFunc,uint32_t eventType,const char * ifName)86 int32_t HostapdUnregisterEventCallback(OnReceiveFunc onRecFunc, uint32_t eventType, const char *ifName)
87 {
88     uint32_t i;
89 
90     if (onRecFunc == NULL || ifName == NULL) {
91         HDF_LOGE("%s: input parameter invalid, line: %d", __FUNCTION__, __LINE__);
92         return HDF_FAILURE;
93     }
94     pthread_mutex_lock(&g_hostapdCallbackMutex);
95     for (i = 0; i < MAX_CALL_BACK_COUNT; i++) {
96         if (g_hostapdCallbackEventMap[i] != NULL && g_hostapdCallbackEventMap[i]->eventType == eventType &&
97             (strcmp(g_hostapdCallbackEventMap[i]->ifName, ifName) == 0) &&
98             g_hostapdCallbackEventMap[i]->onRecFunc == onRecFunc) {
99             g_hostapdCallbackEventMap[i]->onRecFunc = NULL;
100             free(g_hostapdCallbackEventMap[i]);
101             g_hostapdCallbackEventMap[i] = NULL;
102             pthread_mutex_unlock(&g_hostapdCallbackMutex);
103             return HDF_SUCCESS;
104         }
105     }
106     pthread_mutex_unlock(&g_hostapdCallbackMutex);
107     return HDF_FAILURE;
108 }
109 
HostapdEventReport(const char * ifName,uint32_t event,void * data)110 void HostapdEventReport(const char *ifName, uint32_t event, void *data)
111 {
112     uint32_t i;
113 
114     OnReceiveFunc callbackEventMap[MAX_CALL_BACK_COUNT] = {NULL};
115     pthread_mutex_lock(&g_hostapdCallbackMutex);
116     for (i = 0; i < MAX_CALL_BACK_COUNT; i++) {
117         if (g_hostapdCallbackEventMap[i] != NULL && (strcmp(g_hostapdCallbackEventMap[i]->ifName, ifName) == 0) &&
118             (((1 << event) & g_hostapdCallbackEventMap[i]->eventType) != 0)) {
119             HDF_LOGI("%s: send event = %u, ifName = %s", __FUNCTION__, event, ifName);
120             callbackEventMap[i] = g_hostapdCallbackEventMap[i]->onRecFunc;
121         }
122     }
123     pthread_mutex_unlock(&g_hostapdCallbackMutex);
124     for (i = 0; i < MAX_CALL_BACK_COUNT; i++) {
125         if (callbackEventMap[i] != NULL) {
126             HDF_LOGI("%s: call event = %u, ifName = %s", __FUNCTION__, event, ifName);
127             callbackEventMap[i](event, data, ifName);
128         }
129     }
130 }
131