onvif soap 协议的错误代码

在 stdsoap2.h 头文件中定义的的宏
#define SOAP_EOF                        EOF
#define SOAP_OK                         0
#define SOAP_CLI_FAULT                  1
#define SOAP_SVR_FAULT                  2
#define SOAP_TAG_MISMATCH               3
#define SOAP_TYPE                       4
#define SOAP_SYNTAX_ERROR               5
#define SOAP_NO_TAG                     6
#define SOAP_IOB                        7
#define SOAP_MUSTUNDERSTAND             8
#define SOAP_NAMESPACE                  9
#define SOAP_USER_ERROR                 10
#define SOAP_FATAL_ERROR                11      /* deprecated */
#define SOAP_FAULT                      12
#define SOAP_NO_METHOD                  13
#define SOAP_NO_DATA                    14
#define SOAP_GET_METHOD                 15
#define SOAP_PUT_METHOD                 16
#define SOAP_PATCH_METHOD               17
#define SOAP_DEL_METHOD                 18
#define SOAP_HTTP_METHOD                19
#define SOAP_EOM                        20
#define SOAP_MOE                        21
#define SOAP_HDR                        22
#define SOAP_NULL                       23
#define SOAP_DUPLICATE_ID               24
#define SOAP_MISSING_ID                 25
#define SOAP_HREF                       26
#define SOAP_UDP_ERROR                  27
#define SOAP_TCP_ERROR                  28
#define SOAP_HTTP_ERROR                 29
#define SOAP_SSL_ERROR                  30
#define SOAP_ZLIB_ERROR                 31
#define SOAP_DIME_ERROR                 32
#define SOAP_DIME_HREF                  33
#define SOAP_DIME_MISMATCH              34
#define SOAP_DIME_END                   35
#define SOAP_MIME_ERROR                 36
#define SOAP_MIME_HREF                  37
#define SOAP_MIME_END                   38
#define SOAP_VERSIONMISMATCH            39
#define SOAP_PLUGIN_ERROR               40
#define SOAP_DATAENCODINGUNKNOWN        41      /* unused */
#define SOAP_REQUIRED                   42
#define SOAP_PROHIBITED                 43
#define SOAP_OCCURS                     44
#define SOAP_LENGTH                     45
#define SOAP_PATTERN                    46
#define SOAP_FD_EXCEEDED                47
#define SOAP_UTF_ERROR                  48
#define SOAP_NTLM_ERROR                 49
#define SOAP_LEVEL                      50
#define SOAP_FIXED                      51
#define SOAP_EMPTY                      52
#define SOAP_END_TAG                    53
#define SOAP_ERR                        99

SOAP_TCP_ERROR 28  错误通常表示在网络通信过程中发生了 TCP 层的连接错误。具体而言，这类错误通常意味着以下几种情况之一：

1. 设备不可达：程序尝试连接设备的 IP 地址或端口失败，比如设备断开网络连接，或者设备 IP 地址或端口配置错误。
2. 网络不通：客户端和设备之间的网络中断，比如 VPN 未连接或网络被防火墙阻断。
3. 超时：TCP 连接尝试超时，设备响应速度慢，或由于网络延迟无法建立连接。
4. 路由问题：客户端的网络配置（例如子网、网关设置等）错误，导致无法连接到设备的 IP 地址。