SSDP Control Point Functions

Functions to manage SSDP for UPnP Control Points. More...

void	ssdp_handle_ctrlpt_msg (http_message_t *hmsg, sockaddr_storage *dest_addr, int timeout)
	This function handles the ssdp messages from the devices.
int	SearchByTarget (int Hnd, int Mx, char *St, void *Cookie)
	Creates and send the search request for a specific URL.

Detailed Description

Functions to manage SSDP for UPnP Control Points.

Function Documentation

ssdp_handle_ctrlpt_msg()

void ssdp_handle_ctrlpt_msg	(	http_message_t *	hmsg,
		sockaddr_storage *	dest_addr,
		int	timeout
	)

This function handles the ssdp messages from the devices.

These messages includes the search replies, advertisement of device coming alive and bye byes.

Parameters

[in]	hmsg	SSDP message from the device.
[in]	dest_addr	Address of the device.
[in]	timeout	timeout kept by the control point while sending search message. Only in search reply.

Definition at line 285 of file ssdp_ctrlpt.cpp.

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SearchByTarget()

int SearchByTarget	(	int	Hnd,
		int	Mx,
		char *	St,
		void *	Cookie
	)

Creates and send the search request for a specific URL.

This function implements the search request of the discovery phase. A M-SEARCH request is sent on the SSDP channel for both IPv4 and IPv6 addresses. The search target(ST) is required and must be one of the following:

• "ssdp:all" : Search for all devices and services.
• "ssdp:rootdevice" : Search for root devices only.
• "uuid:<device-uuid>" : Search for a particular device.
• "urn:schemas-upnp-org:device:<deviceType:v>"
• "urn:schemas-upnp-org:service:<serviceType:v>"
• "urn:<domain-name>:device:<deviceType:v>"
• "urn:<domain-name>:service:<serviceType:v>"

Returns

On success: 1
On error:

• UPNP_E_INVALID_PARAM
• UPNP_E_INTERNAL_ERROR
• UPNP_E_INVALID_ARGUMENT
• UPNP_E_BUFFER_TOO_SMALL

Parameters

[in]	Hnd	The handle of the client performing the search.
[in]	Mx	Number of seconds to wait, to collect all the responses.
[in]	St	Search target.
[in]	Cookie	Cookie provided by control point application. This cokie will be returned to application in the callback.

Definition at line 545 of file ssdp_ctrlpt.cpp.

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