本文主要是介绍linux设备上的Onvif 实现5：实现Probe命令检测设备，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
学习Onvif的最关键步骤就是设备发现，一般来说开发的设备都是客户端，只要能被服务端正确发现就大功告成啦！
本文分别实现了客户端和服务端的识别流程，可以配合起来运行测试。
第一部分：实现Probe检测实例
代码目录：
\\192.168.0.234\work\gaoht\gsoap\test
\\192.168.0.234\work\gaoht\gsoap\probe-sample
Gsoap 2.8.15
onviftest 12.06
Wsdl 下载地址：Home - ONVIF Mandarin
选择链接另存为wsdl文件即可。
1 创建工作目录\\192.168.0.234\work\gaoht\gsoap\probe-sample，把remotediscovery.wsdl、soapcpp2、wsdl2h、WS-typemap.dat拷贝到此处。
cp /work/gaoht/gsoap/gsoap-2.8/gsoap/bin/linux386/soapcpp2 ./
cp /work/gaoht/gsoap/gsoap-2.8/gsoap/bin/linux386/ wsdl2h ./
cp /work/gaoht/gsoap/gsoap-2.8/gsoap/WS/WS-typemap.dat ./
Gsoap 2.8.15版本下的WS-typemap.dat是完整的，支持WS-Discovery。
Gsoap 2.8.3下的gsoap/typemap.dat需要手工添加命令空间。这个文件不同导致生成的RemoteDiscoveryBinding.nsmap前缀是不同的。
2 运行wsdl2h:
./wsdl2h -s -c -t WS-typemap.dat -o remotediscovery.h remotediscovery.wsdl
生成结果是remotediscovery.h
3 运行soapcpp2
用到了/gsoap-2.8/gsoap/import 中的头文件，必须指定import路径。
./soapcpp2 -c -L -x -I../gsoap-2.8/gsoap/import remotediscovery.h
生成的文件是：
RemoteDiscoveryBinding.nsmap、wsdd.nsmap 这两者是相同的
soapC.c
soapH.h
soapClient.c
soapServer.c
soapStub.h
4 拷贝工作所需的文件到工作目录
gsoap/stdsoap2.c
gsoap/stdsoap2.h
gsoap/plugin/wsaapi.c
gsoap/plugin/wsaapi.h
gsoap/plugin/wsddapi.c
gsoap/plugin/ wsddapi.h
gsoap/plugin/threads.h 这个文件被wsddapi.h包含，
gsoap/plugin/cdatatype.h 这个文件被wsddapi.h包含
5 编写server端程序，创建deviceserver.c，内容如下：
/******************************************************************************
* Copyright 2010-2013
* FileName: deviceserver.c
* Desc: 监视网络摄像头设备发现服务器文件
*
*
* Author: Tom-hongtao.gao
* Date: 2013/05/30
* Notes: 数据结构使用链表
*
* -----------------------------------------------------------------
* Histroy: v1.0 2013/05/30, Tom-hongtao.gao create this file
*
******************************************************************************/
/*-------------------------------- Includes ----------------------------------*/
#include "uuid32.h"
#include "soapStub.h"
#include "RemoteDiscoveryBinding.nsmap"
#include "wsddapi.h"
/*-------------------- Global Definitions and Declarations -------------------*/
/*----------------------- Constant / Macro Definitions -----------------------*/
/*------------------------ Type Declarations ---------------------------------*/
/*------------------------ Variable Declarations -----------------------------*/
/*------------------------ Function Prototype --------------------------------*/
/*------------------------ Function Implement --------------------------------*/
int main(int argc, char **argv)
{
int m, s;
struct ip_mreq mcast;
//初始化SOAP执行环境
struct soap probe_soap;
soap_init2(&probe_soap, SOAP_IO_UDP|SOAP_IO_FLUSH, SOAP_IO_UDP|SOAP_IO_FLUSH);
soap_set_namespaces(&probe_soap, namespaces);
/*下面的函数是将创建的SOAP与指定的监听端口进行绑定，即通过SOAP创建监听
套接字，并将该套接字绑定到指定端口，从而在该端口上监听Web服务请求，
返回创建的套接字标识 */
if(!soap_valid_socket(soap_bind(&probe_soap, NULL, 3702, 10)))
{
soap_print_fault(&probe_soap, stderr);
exit(1);
}
mcast.imr_multiaddr.s_addr = inet_addr("239.255.255.250");
mcast.imr_interface.s_addr = htonl(INADDR_ANY);
if(setsockopt(probe_soap.master, IPPROTO_IP, IP_ADD_MEMBERSHIP, (char*)&mcast, sizeof(mcast)) < 0)
{
printf("setsockopt error!\n");
return 0;
}
//成功绑定之后，便开始监听
for (;;)
{
//监听直到有连接请求
s = soap_accept(&probe_soap);
if (s < 0) {
soap_print_fault(&probe_soap, stderr);
exit(-1);
}
fprintf(stderr, "Socket connection successful: slave socket = %d\n", s);
/* 连接成功后，便处理并响应请求，下面的函数就是用来处理并响应请求的，
它封装了所有的处理与响应过程，在该函数中调用了本地所实现的相关Web
服务方法，它所需要的所有请求信息都在SOAP结构体中。*/
soap_serve(&probe_soap);
soap_destroy(&probe_soap); //服务完成后，便撤销SOAP环境
soap_end(&probe_soap); //清除所有资源，关闭套接字
}
soap_done(&probe_soap);
return 0;
}
SOAP_FMAC5 int SOAP_FMAC6 SOAP_ENV__Fault(struct soap* soap, char *faultcode, char *faultstring, char *faultactor,
struct SOAP_ENV__Detail *detail, struct SOAP_ENV__Code *SOAP_ENV__Code,
struct SOAP_ENV__Reason *SOAP_ENV__Reason,
char *SOAP_ENV__Node, char *SOAP_ENV__Role,
struct SOAP_ENV__Detail *SOAP_ENV__Detail )
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
return 0;
}
void wsdd_event_Hello(struct soap *soap, unsigned int InstanceId, const char *SequenceId, unsigned int MessageNumber, const char *MessageID, const char *RelatesTo, const char *EndpointReference, const char *Types, const char *Scopes, const char *MatchBy, const char *XAddrs, unsigned int MetadataVersion)
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
return 0;
}
void wsdd_event_Bye(struct soap *soap, unsigned int InstanceId, const char *SequenceId, unsigned int MessageNumber, const char *MessageID, const char *RelatesTo, const char *EndpointReference, const char *Types, const char *Scopes, const char *MatchBy, const char *XAddrs, unsigned int *MetadataVersion)
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
return 0;
}
soap_wsdd_mode wsdd_event_Probe(struct soap *soap, const char *MessageID, const char *ReplyTo, const char *Types, const char *Scopes, const char *MatchBy, struct wsdd__ProbeMatchesType *matches)
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
printf("MessageID:%s\n", MessageID);
printf("ReplyTo:%s\n",ReplyTo);
printf("Types:%s\n",Types);
printf("Scopes:%s\n",Scopes);
printf("MatchBy:%s\n",MatchBy);
//测试代码
soap_wsdd_init_ProbeMatches(soap,matches);
soap_wsdd_add_ProbeMatch(soap,matches,
"urn:uuid:464A4854-4656-5242-4530-313035394100",
"ns1:NetworkVideoTransmitter",
"onvif://www.onvif.org/type/video_encoder onvif://www.onvif.org/type/audio_encoder onvif://www.onvif.org/hardware/IPC-model onvif://www.onvif.org/name/IPC-model",
NULL,
"http://192.168.0.243/onvif/device_service",10);
return 0;
}
void wsdd_event_ProbeMatches(struct soap *soap, unsigned int InstanceId, const char *SequenceId, unsigned int MessageNumber, const char *MessageID, const char *RelatesTo, struct wsdd__ProbeMatchesType *matches)
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
return 0;
}
soap_wsdd_mode wsdd_event_Resolve(struct soap *soap, const char *MessageID, const char *ReplyTo, const char *EndpointReference, struct wsdd__ResolveMatchType *match)
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
return 0;
}
void wsdd_event_ResolveMatches(struct soap *soap, unsigned int InstanceId, const char *SequenceId, unsigned int MessageNumber, const char *MessageID, const char *RelatesTo, struct wsdd__ResolveMatchType *match)
{
printf("%s,%d\n",__FUNCTION__, __LINE__);
return 0;
}
6 创建客户端程序 deviceprobe.c，代码如下：
/******************************************************************************
* Copyright 2010-2013 A
* FileName: deviceprobe.c
* Desc: 监视网络摄像头设备发现文件
*
*
* Author: Tom-hongtao.gao
* Date: 2013/05/30
* Notes: 数据结构使用链表
*
* -----------------------------------------------------------------
* Histroy: v1.0 2013/05/30, Tom-hongtao.gao create this file
*
******************************************************************************/
/*-------------------------------- Includes ----------------------------------*/
#include "uuid32.h"
//#include "stdsoap2.h"
//#include "soapH.h"
//#include "remotediscovery.h"
#include "soapStub.h"
#include "RemoteDiscoveryBinding.nsmap"
/*-------------------- Global Definitions and Declarations -------------------*/
/*----------------------- Constant / Macro Definitions -----------------------*/
/*------------------------ Type Declarations ---------------------------------*/
/*------------------------ Variable Declarations -----------------------------*/
/*------------------------ Function Prototype --------------------------------*/
/*------------------------ Function Implement --------------------------------*/
int main(int argc, char *argv[])
{
/* 变量声明 */
struct soap *soap; //soap环境变量
struct wsdd__ProbeType req; //用于发送消息描述
struct wsdd__ProbeType wsdd__Probe;
struct __wsdd__ProbeMatches resp;
//struct wsdd__ProbeMatchesType resp; //请求消息的回应
struct wsdd__ScopesType sScope; //描述查找哪类的Web服务
struct SOAP_ENV__Header header; //soap消息头描述
int count = 0; //获得的设信息备个数
int result = 0; //返回值
char uuid_string[64]; //存放uuid的(8-4-4-4-12)的格式
printf("%s : %d 000 : \n ",__FUNCTION__, __LINE__);
/************初始化*************/
memset(uuid_string, 0, 64);
strncpy(uuid_string,uuid_create_string(),36); //必须考虑到4个中间连字符
printf("uuid=%s \n ",uuid_string);
soap = soap_new(); //为soap申请变量空间,并初始化
if(soap==NULL)
return -1;
soap_set_namespaces(soap, namespaces); //设置soap的namespaces
printf("%s : %d \n ",__FUNCTION__, __LINE__);
soap->recv_timeout = 5; //超过5秒钟没有数据就退出
soap_default_SOAP_ENV__Header(soap, &header);//将header设置为soap消息 头属性
header.wsa__MessageID = uuid_string;
header.wsa__To = "urn:schemas-xmlsoap-org:ws:2005:04:discovery";
header.wsa__Action = "http://schemas.xmllocal_soap.org/ws/2005/04/discovery/Probe";
soap->header = &header; //设置soap头消息的ID
printf("%s : %d \n ",__FUNCTION__, __LINE__);
/*设置所需寻找设备的类型和范围,二者至少设定一个,
否则可能收到非ONVIF设备,出现异常*/
//设置soap消息的请求服务属性
soap_default_wsdd__ScopesType(soap, &sScope);
//sScope.__item = "";
sScope.__item = "onvif://www.onvif.org";
soap_default_wsdd__ProbeType(soap, &req);
req.Scopes = &sScope;
/*设置所需设备的类型,ns1为命名空间前缀,为wsdd.nsmap文件中
{"tdn","http://www.onvif.org/ver10/network/wsdl"}的tdn,如果不是tdn,而是其它,
例如ns1这里也要随之改为ns1 */
req.Types = "ns1:NetworkVideoTransmitter";
printf("%s : %d \n ",__FUNCTION__, __LINE__);
//调用gSoap接口
//soap_wsdd_Probe
result = soap_send___wsdd__Probe(soap, "soap.udp://239.255.255.250:3702/", NULL, &req);
printf("%s: %d, send probe request success!\n",__FUNCTION__, __LINE__);
if(result==-1)
{
printf("soap error: %d, %s, %s\n", soap->error, *soap_faultcode(soap), *soap_faultstring(soap));
result = soap->error;
}
else
{
do
{
printf("%s: %d, begin receive probematch... \n",__FUNCTION__, __LINE__);
printf("count=%d \n",count);
//接收ProbeMatches,成功返回0,否则-1
result = soap_recv___wsdd__ProbeMatches(soap, &resp);
printf(" --soap_recv___wsdd__ProbeMatches() result=%d \n",result);
if (result==-1)
{
printf("Find %d devices!\n", count);
break;
}
else
{
//读取服务端回应的Probematch消息
printf("soap_recv___wsdd__Probe: __sizeProbeMatch=%d\r\n",resp.wsdd__ProbeMatches->__sizeProbeMatch);
printf("Target EP Address : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->wsa__EndpointReference.Address);
printf("Target Type : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->Types);
printf("Target Service Address : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->XAddrs);
printf("Target Metadata Version : %d\r\n",resp.wsdd__ProbeMatches->ProbeMatch->MetadataVersion);
printf("Target Scopes Address : %s\r\n", resp.wsdd__ProbeMatches->ProbeMatch->Scopes->__item);
count++;
}
}while(1);
}
printf("%s : %d \n ",__FUNCTION__, __LINE__);
//清除soap
soap_end(soap); // clean up and remove deserialized data
soap_free(soap);//detach and free runtime context
soap_done(soap); // detach context (last use and no longer in scope)
return result;
}
7 创建uuid文件：md5c.c, md5c.h, uuid32.h, uuid32.c
8 创建makefile，内容如下：
GSOAP_ROOT = /work/gaoht/gsoap/gsoap-2.8/gsoap
CC = gcc -g -DWITH_NONAMESPACES
INCLUDE = -I$(GSOAP_ROOT)
SERVER_OBJS = soapC.o stdsoap2.o soapClient.o soapServer.o md5c.o uuid32.o deviceserver.o wsddapi.o wsaapi.o
CLIENT_OBJS = soapC.o stdsoap2.o soapClient.o md5c.o uuid32.o deviceprobe.o
all: server client
server: $(SERVER_OBJS)
$(CC) $(INCLUDE) -o deviceserver $(SERVER_OBJS)
client: $(CLIENT_OBJS)
$(CC) $(INCLUDE) -o deviceprobe $(CLIENT_OBJS)
clean:
rm -f *.o deviceprobe deviceserver
9 直接运行make all，生成应用程序deviceprobe、deviceserver。
tom@shelly-desktop:~/gsoap/probe-sample$ make all
gcc -g -DWITH_NONAMESPACES -c -o soapC.o soapC.c
gcc -g -DWITH_NONAMESPACES -c -o stdsoap2.o stdsoap2.c
gcc -g -DWITH_NONAMESPACES -c -o soapClient.o soapClient.c
gcc -g -DWITH_NONAMESPACES -c -o soapServer.o soapServer.c
gcc -g -DWITH_NONAMESPACES -c -o deviceserver.o deviceserver.c
deviceserver.c: In function ‘wsdd_event_Hello’:
deviceserver.c:115: warning: ‘return’ with a value, in function returning void
deviceserver.c: In function ‘wsdd_event_Bye’:
deviceserver.c:121: warning: ‘return’ with a value, in function returning void
deviceserver.c: In function ‘wsdd_event_ProbeMatches’:
deviceserver.c:146: warning: ‘return’ with a value, in function returning void
deviceserver.c: In function ‘wsdd_event_ResolveMatches’:
deviceserver.c:157: warning: ‘return’ with a value, in function returning void
gcc -g -DWITH_NONAMESPACES -c -o wsddapi.o wsddapi.c
gcc -g -DWITH_NONAMESPACES -c -o wsaapi.o wsaapi.c
gcc -g -DWITH_NONAMESPACES -I/work/gaoht/gsoap/gsoap-2.8/gsoap -o deviceserver soapC.o stdsoap2.o soapClient.o soapServer.o deviceserver.o wsddapi.o wsaapi.o
gcc -g -DWITH_NONAMESPACES -c -o md5c.o md5c.c
gcc -g -DWITH_NONAMESPACES -c -o uuid32.o uuid32.c
uuid32.c: In function ‘uuid_create’:
uuid32.c:152: warning: integer constant is too large for ‘long’ type
uuid32.c: In function ‘uuid_to_string’:
uuid32.c:224: warning: format ‘%08lx’ expects type ‘long unsigned int’, but argument 8 has type ‘uint32’
uuid32.c: In function ‘uuid_to_timestamp’:
uuid32.c:277: warning: integer constant is too large for ‘long’ type
uuid32.c:286: warning: passing argument 1 of ‘localtime’ from incompatible pointer type
/usr/include/time.h:237: note: expected ‘const time_t *’ but argument is of type ‘int64 *’
gcc -g -DWITH_NONAMESPACES -c -o deviceprobe.o deviceprobe.c
gcc -g -DWITH_NONAMESPACES -I/work/gaoht/gsoap/gsoap-2.8/gsoap -o deviceprobe soapC.o stdsoap2.o soapClient.o md5c.o uuid32.o deviceprobe.o
tom@shelly-desktop:~/gsoap/probe-sample$
10 运行deviceserver，
使用onviftest 12.06工具测试：发现了服务器192.168.15.234这个设备。
11 运行deviceprobe，收到deviceserver、摄像头的应答。
发出probe命令, 收到服务器deviceserver应答:
紧接着又收到了摄像头的应答
居然上传不了图片:::
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