Linux下onvif客户端获取ipc摄像头 GetServices：获取媒体地址（有的h265摄像头必须要这个接口）

GetServices：获取媒体地址（有些h265的摄像头必须用到这个接口，得到获取能力时没获取到的另一个媒体地址）

鉴权：但是在使用这个接口之前是需要鉴权的。ONVIF协议规定，部分接口需要鉴权，部分接口不需要鉴权，在调用需要鉴权的接口时不使用鉴权，会导致接口调用失败。实现鉴权的方式之一可以调用gSOAP源码中的 soap_wsse_add_UsernameTokenDigest()函数。要安装依赖库OpenSSL

实现代码：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>

#include "soapH.h"
#include "stdsoap2.h"
#include "soapStub.h"
#include "wsseapi.h"

#include "wsdd.nsmap" //命名空间

static struct soap* ONVIF_Initsoap(struct SOAP_ENV__Header *header, const char *was_To, const char *was_Action, int timeout)
{
    struct soap *soap = NULL;    // soap环境变量
    unsigned char macaddr[];
    char _HwId[];
    unsigned int Flagrand;

    soap = soap_new();
    if(soap == NULL)
    {
        printf("[%d]soap = NULL\n", __LINE__);
        return NULL;
    }

    soap_set_namespaces(soap, namespaces);   // 设置soap的namespaces，即设置命名空间

    // 设置超时（超过指定时间没有数据就退出）
    if(timeout > )
    {
        soap->recv_timeout = timeout;
        soap->send_timeout = timeout;
        soap->connect_timeout = timeout;
    }
    else
    {
        //Maximum waittime : 20s
        soap->recv_timeout  = ;
        soap->send_timeout  = ;
        soap->connect_timeout = ;
    }

    soap_default_SOAP_ENV__Header(soap, header);

    //Create SessionID randomly,生成uuid(windows下叫guid，linux下叫uuid)，格式为urn:uuid:8-4-4-4-12，由系统随机产生
    srand((int)time());
    Flagrand = rand()% + ;
    macaddr[] = 0x1;
    macaddr[] = 0x2;
    macaddr[] = 0x3;
    macaddr[] = 0x4;
    macaddr[] = 0x5;
    macaddr[] = 0x6;
    sprintf(_HwId, "urn:uuid:%ud68a-1dd2-11b2-a105-%02X%02X%02X%02X%02X%02X", Flagrand, macaddr[], macaddr[], macaddr[],macaddr[],macaddr[],macaddr[]);
    header->wsa__MessageID = (char *)malloc();
    memset(header->wsa__MessageID, , );
    strncpy(header->wsa__MessageID, _HwId, strlen(_HwId));    //wsa__MessageID存放的是uuid

    if(was_Action != NULL)
    {
        header->wsa__Action = (char*)malloc();
        memset(header->wsa__Action, '\0', );
        strncpy(header->wsa__Action, was_Action, ); //
    }
    if(was_To != NULL)
    {
        header->wsa__To = (char *)malloc();
        memset(header->wsa__To, '\0', );
        strncpy(header->wsa__To, was_To, );//"urn:schemas-xmlsoap-org:ws:2005:04:discovery";
    }
    soap->header = header;
    return soap;
}

//释放函数
void ONVIF_soap_delete(struct soap *soap)
{
    soap_destroy(soap);                      // remove deserialized class instances (C++ only)
    soap_end(soap);                          // Clean up deserialized data (except class instances) and temporary data
    soap_free(soap);                         // Reset and deallocate the context created with soap_new or soap_copy
}

//鉴权
static int ONVIF_SetAuthInfo(struct soap *soap, const char *username, const char *password)
{
    int result = ;
    if((NULL != username) || (NULL != password)){
        soap_wsse_add_UsernameTokenDigest(soap, NULL, username, password);
    }else{
        printf("un etAuth\n");
        result = -;
    }

    return result;
}

int main(int argc,char *argv[])
{
    int i = ;
    int ret = ;
    char secvre_addr[] = "http://172.168.0.211/onvif/device_service"; //设备搜索获取得到的服务地址
    struct SOAP_ENV__Header header;
    struct _tds__GetServices *tds__GetServices;
    struct _tds__GetServicesResponse *tds__GetServicesResponse;

    struct soap* soap = ONVIF_Initsoap(&header, NULL, NULL, );

    //tds__GetServices->IncludeCapability = (enum xsd__boolean *)soap_malloc(soap, sizeof(int));
    //*(tds__GetServices->IncludeCapability) = (enum xsd__boolean)0;

    tds__GetServices->IncludeCapability = ;

    ONVIF_SetAuthInfo(soap,"admin","");  //鉴权
    soap_call___tds__GetServices(soap,secvre_addr,NULL, tds__GetServices, tds__GetServicesResponse);
    if(soap->error){
        ret = -;
        printf("soap error: %d, %s, %s\n", soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
        return ret;
    }else{
        if (tds__GetServicesResponse->Service[i].Namespace != NULL ){
            for(i=; i<tds__GetServicesResponse->__sizeService; i++)
            {
                if(strcmp(tds__GetServicesResponse->Service[i].Namespace, "http://www.onvif.org/ver20/media/wsdl") == )
                {
                    printf("  media_addr[%d] %s\n", i, tds__GetServicesResponse->Service[i].XAddr);
                }
                if(strcmp(tds__GetServicesResponse->Service[i].Namespace, "http://www.onvif.org/ver10/media/wsdl") == )
                {
                    printf("  media_addr->XAddr[%d] %s\n", i, tds__GetServicesResponse->Service[i].XAddr);

                }
            }

        }
    }

    ONVIF_soap_delete(soap);
    return ret;
}

编译：gcc -o test get_GetServices_test.c stdsoap2.c soapC.c md5.c dom.c mecevp.c smdevp.c threads.c wsaapi.c wsseapi.c soapClient.c -I import/ -DWITH_OPENSSL -lssl -lcrypto -ldl

结果：

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