Mbed OS Socket API. More...

Data Structures
class	CellularNonIPSocket
	Socket implementation for cellular Non-IP data delivery(NIDD). More...

class	DNS
	Base class for DNS provider. More...

class	DTLSSocket
	DTLSSocket implement DTLS stream over UDP Socket. More...

class	DTLSSocketWrapper
	DTLSSocketWrapper implement DTLS stream over the existing Socket transport. More...

class	ICMPSocket
	ICMP socket implementation. More...

class	InternetDatagramSocket
	InternetDatagramSocket socket implementation. More...

class	InternetSocket
	Socket implementation that uses IP network stack. More...

class	NetworkStack
	NetworkStack class. More...

struct	nsapi_addr
	IP address structure for passing IP addresses by value. More...

struct	nsapi_wifi_ap
	nsapi_wifi_ap structure More...

struct	nsapi_stack
	nsapi_stack structure More...

struct	nsapi_ip_mreq
	nsapi_ip_mreq structure More...

struct	nsapi_latency_req
	nsapi_latency_req structure More...

struct	nsapi_stagger_req
	nsapi_stagger_req structure More...

struct	nsapi_msghdr
	nsapi_msghdr More...

struct	nsapi_pktinfo
	nsapi_pktinfo structure More...

struct	nsapi_stack_api
	nsapi_stack_api structure More...

class	Socket
	Socket interface. More...

class	SocketAddress
	SocketAddress class. More...

class	TCPSocket
	TCP socket connection. More...

class	TLSSocket
	TLSSocket is a wrapper around TCPSocket for interacting with TLS servers. More...

class	TLSSocketWrapper
	TLSSocket is a wrapper around Socket for interacting with TLS servers. More...

class	UDPSocket
	UDP socket implementation. More...

Macros
#define	NSAPI_INTERFACE_PREFIX_SIZE 2
	Size of 2 char network interface name from driver. More...

#define	NSAPI_INTERFACE_NAME_MAX_SIZE 6
	Maximum size of network interface name. More...

#define	NSAPI_IP_SIZE NSAPI_IPv6_SIZE
	Maximum size of IP address representation. More...

#define	NSAPI_IP_BYTES NSAPI_IPv6_BYTES
	Maximum number of bytes for IP address. More...

#define	NSAPI_MAC_SIZE 18
	Maximum size of MAC address representation. More...

#define	NSAPI_MAC_BYTES 6
	Maximum number of bytes for MAC address. More...

#define	NSAPI_IPv4_SIZE 16
	Size of IPv4 representation. More...

#define	NSAPI_IPv4_BYTES 4
	Number of bytes in IPv4 address. More...

#define	NSAPI_IPv6_SIZE 40
	Size of IPv6 representation. More...

#define	NSAPI_IPv6_BYTES 16
	Number of bytes in IPv6 address. More...

Typedefs
typedef signed int	nsapi_error_t
	Type used to represent error codes. More...

typedef unsigned int	nsapi_size_t
	Type used to represent the size of data passed through sockets. More...

typedef signed int	nsapi_size_or_error_t
	Type used to represent either a size or error passed through sockets. More...

typedef signed int	nsapi_value_or_error_t
	Type used to represent either a value or error. More...

typedef enum nsapi_security	nsapi_security_t
	Enum of encryption types. More...

typedef struct nsapi_addr	nsapi_addr_t
	IP address structure for passing IP addresses by value. More...

typedef void *	nsapi_socket_t
	Opaque handle for network sockets. More...

typedef struct nsapi_wifi_ap	nsapi_wifi_ap_t
	nsapi_wifi_ap structure More...

typedef struct nsapi_stack	nsapi_stack_t
	nsapi_stack structure More...

typedef struct nsapi_ip_mreq	nsapi_ip_mreq_t
	nsapi_ip_mreq structure More...

typedef struct nsapi_latency_req	nsapi_latency_req_t
	nsapi_latency_req structure More...

typedef struct nsapi_stagger_req	nsapi_stagger_req_t
	nsapi_stagger_req structure More...

typedef struct nsapi_msghdr	nsapi_msghdr_t
	nsapi_msghdr More...

typedef struct nsapi_pktinfo	nsapi_pktinfo_t
	nsapi_pktinfo structure More...

typedef struct nsapi_stack_api	nsapi_stack_api_t
	nsapi_stack_api structure More...

Enumerations

Functions
NetworkStack *	nsapi_create_stack (nsapi_stack_t *stack)
	Convert a raw nsapi_stack_t object into a C++ NetworkStack object. More...

nsapi_error_t	nsapi_dns_query (nsapi_stack_t stack, const char host, nsapi_addr_t *addr, nsapi_version_t version)
	Query a domain name server for an IP address of a given hostname. More...

nsapi_size_or_error_t	nsapi_dns_query_multiple (nsapi_stack_t stack, const char host, nsapi_addr_t *addr, nsapi_size_t addr_count, nsapi_version_t version)
	Query a domain name server for multiple IP address of a given hostname. More...

nsapi_error_t	nsapi_dns_add_server (nsapi_addr_t addr, const char *interface_name)
	Add a domain name server to list of servers to query. More...

Detailed Description

Mbed OS Socket API.

Macro Definition Documentation

#define NSAPI_INTERFACE_NAME_MAX_SIZE 6

Maximum size of network interface name.

Definition at line 189 of file nsapi_types.h.

#define NSAPI_INTERFACE_PREFIX_SIZE 2

Size of 2 char network interface name from driver.

Definition at line 185 of file nsapi_types.h.

#define NSAPI_IP_BYTES NSAPI_IPv6_BYTES

Maximum number of bytes for IP address.

Definition at line 197 of file nsapi_types.h.

#define NSAPI_IP_SIZE NSAPI_IPv6_SIZE

Maximum size of IP address representation.

Definition at line 193 of file nsapi_types.h.

#define NSAPI_IPv4_BYTES 4

Number of bytes in IPv4 address.

Definition at line 213 of file nsapi_types.h.

#define NSAPI_IPv4_SIZE 16

Size of IPv4 representation.

Definition at line 209 of file nsapi_types.h.

#define NSAPI_IPv6_BYTES 16

Number of bytes in IPv6 address.

Definition at line 221 of file nsapi_types.h.

#define NSAPI_IPv6_SIZE 40

Size of IPv6 representation.

Definition at line 217 of file nsapi_types.h.

#define NSAPI_MAC_BYTES 6

Maximum number of bytes for MAC address.

Definition at line 205 of file nsapi_types.h.

#define NSAPI_MAC_SIZE 18

Maximum size of MAC address representation.

Definition at line 201 of file nsapi_types.h.

Typedef Documentation

typedef struct nsapi_addr nsapi_addr_t

IP address structure for passing IP addresses by value.

typedef signed int nsapi_error_t

Type used to represent error codes.

This is a separate type from enum nsapi_error to avoid breaking compatibility in type-sensitive overloads

Definition at line 142 of file nsapi_types.h.

typedef struct nsapi_ip_mreq nsapi_ip_mreq_t

nsapi_ip_mreq structure

typedef struct nsapi_latency_req nsapi_latency_req_t

nsapi_latency_req structure

typedef struct nsapi_msghdr nsapi_msghdr_t

nsapi_msghdr

typedef struct nsapi_pktinfo nsapi_pktinfo_t

nsapi_pktinfo structure

typedef enum nsapi_security nsapi_security_t

Enum of encryption types.

The security type specifies a particular security to use when connected to a WiFi network

typedef signed int nsapi_size_or_error_t

Type used to represent either a size or error passed through sockets.

A valid nsapi_size_or_error_t is either a non-negative size or a negative error code from the nsapi_error_t

Definition at line 153 of file nsapi_types.h.

typedef unsigned int nsapi_size_t

Type used to represent the size of data passed through sockets.

Definition at line 146 of file nsapi_types.h.

typedef void* nsapi_socket_t

Opaque handle for network sockets.

Definition at line 254 of file nsapi_types.h.

typedef struct nsapi_stack_api nsapi_stack_api_t

nsapi_stack_api structure

Common api structure for network stack operations. A network stack can provide a nsapi_stack_api structure filled out with the appropriate implementation.

Unsupported operations can be left as null pointers.

typedef struct nsapi_stack nsapi_stack_t

nsapi_stack structure

Stack structure representing a specific instance of a stack.

typedef struct nsapi_stagger_req nsapi_stagger_req_t

nsapi_stagger_req structure

typedef signed int nsapi_value_or_error_t

Type used to represent either a value or error.

A valid nsapi_value_or_error_t is either a non-negative value or a negative error code from the nsapi_error_t

Definition at line 160 of file nsapi_types.h.

typedef struct nsapi_wifi_ap nsapi_wifi_ap_t

nsapi_wifi_ap structure

Structure representing a WiFi Access Point

Enumeration Type Documentation

enum nsapi_connection_status

Enum of connection status types.

Valid error codes have negative values.

Enumerator
NSAPI_STATUS_LOCAL_UP	local IP address set
NSAPI_STATUS_GLOBAL_UP	global IP address set
NSAPI_STATUS_DISCONNECTED	no connection to network
NSAPI_STATUS_CONNECTING	connecting to network

Definition at line 115 of file nsapi_types.h.

enum nsapi_error

Enum of standardized error codes.

Valid error codes have negative values and may be returned by any network operation.

Enumerator
NSAPI_ERROR_OK	no error
NSAPI_ERROR_WOULD_BLOCK	no data is not available but call is non-blocking
NSAPI_ERROR_UNSUPPORTED	unsupported functionality
NSAPI_ERROR_PARAMETER	invalid configuration
NSAPI_ERROR_NO_CONNECTION	not connected to a network
NSAPI_ERROR_NO_SOCKET	socket not available for use
NSAPI_ERROR_NO_ADDRESS	IP address is not known
NSAPI_ERROR_NO_MEMORY	memory resource not available
NSAPI_ERROR_NO_SSID	ssid not found
NSAPI_ERROR_DNS_FAILURE	DNS failed to complete successfully
NSAPI_ERROR_DHCP_FAILURE	DHCP failed to complete successfully
NSAPI_ERROR_AUTH_FAILURE	connection to access point failed
NSAPI_ERROR_DEVICE_ERROR	failure interfacing with the network processor
NSAPI_ERROR_IN_PROGRESS	operation (eg connect) in progress
NSAPI_ERROR_ALREADY	operation (eg connect) already in progress
NSAPI_ERROR_IS_CONNECTED	socket is already connected
NSAPI_ERROR_CONNECTION_LOST	connection lost
NSAPI_ERROR_CONNECTION_TIMEOUT	connection timed out
NSAPI_ERROR_ADDRESS_IN_USE	Address already in use
NSAPI_ERROR_TIMEOUT	operation timed out
NSAPI_ERROR_BUSY	device is busy and cannot accept new operation

Definition at line 84 of file nsapi_types.h.

enum nsapi_event

Enum of event types.

Event callbacks are accompanied with an event-dependent parameter passed as an intptr_t.

Enumerator
NSAPI_EVENT_CONNECTION_STATUS_CHANGE	network connection status has changed, the parameter = new status (nsapi_connection_status_t)
NSAPI_EVENT_CELLULAR_STATUS_BASE	Cellular modem status has changed, See the enum values from enum cellular_connection_status_t in /connectivity/cellular/framework/common/CellularCommon.h
NSAPI_EVENT_CELLULAR_STATUS_END	cellular modem status has changed, See the enum values from enum cellular_connection_status_t in /connectivity/cellular/framework/common/CellularCommon.h

Definition at line 130 of file nsapi_types.h.

enum nsapi_ip_stack

Supported IP protocol versions of IP stack.

Definition at line 343 of file nsapi_types.h.

enum nsapi_protocol

Enum of socket protocols.

The socket protocol specifies a particular protocol to be used with a newly created socket.

Enumerator
NSAPI_TCP	Socket is of TCP type
NSAPI_UDP	Socket is of UDP type
NSAPI_ICMP	Socket is of ICMP type

Definition at line 264 of file nsapi_types.h.

enum nsapi_security

Enum of encryption types.

The security type specifies a particular security to use when connected to a WiFi network

Enumerator
NSAPI_SECURITY_NONE	open access point
NSAPI_SECURITY_WEP	phrase conforms to WEP
NSAPI_SECURITY_WPA	phrase conforms to WPA
NSAPI_SECURITY_WPA2	phrase conforms to WPA2
NSAPI_SECURITY_WPA_WPA2	phrase conforms to WPA/WPA2
NSAPI_SECURITY_PAP	phrase conforms to PPP authentication context
NSAPI_SECURITY_CHAP	phrase conforms to PPP authentication context
NSAPI_SECURITY_EAP_TLS	phrase conforms to EAP-TLS
NSAPI_SECURITY_PEAP	phrase conforms to PEAP
NSAPI_SECURITY_WPA2_ENT	phrase conforms to WPA2-AES and WPA-TKIP with enterprise security
NSAPI_SECURITY_WPA3	phrase conforms to WPA3
NSAPI_SECURITY_WPA3_WPA2	phrase conforms to WPA3_WPA2
NSAPI_SECURITY_UNKNOWN	unknown/unsupported security in scan results

Definition at line 167 of file nsapi_types.h.

enum nsapi_socket_level

Enum of standardized socket option levels for use with Socket::setsockopt and getsockopt.

Enumerator
NSAPI_SOCKET	Socket option level - see nsapi_socket_option_t for options

Definition at line 297 of file nsapi_types.h.

enum nsapi_socket_option

Enum of standardized socket option names for level NSAPI_SOCKET of Socket::setsockopt and getsockopt.

These options may not be supported on all stacks, in which case NSAPI_ERROR_UNSUPPORTED may be returned.

Enumerator
NSAPI_REUSEADDR	Allow bind to reuse local addresses
NSAPI_KEEPALIVE	Enables sending of keepalive messages
NSAPI_KEEPIDLE	Sets timeout value to initiate keepalive
NSAPI_KEEPINTVL	Sets timeout value for keepalive
NSAPI_LINGER	Keeps close from returning until queues empty
NSAPI_SNDBUF	Sets send buffer size
NSAPI_RCVBUF	Sets recv buffer size
NSAPI_ADD_MEMBERSHIP	Add membership to multicast address
NSAPI_DROP_MEMBERSHIP	Drop membership to multicast address
NSAPI_BIND_TO_DEVICE	Bind socket network interface name
NSAPI_LATENCY	Read estimated latency to destination
NSAPI_STAGGER	Read estimated stagger value to destination
NSAPI_IPTOS	Set IP type of service to set specific precedence
NSAPI_BROADCAST	Set broadcast flag for UDP socket
NSAPI_PKTINFO	Get additional information when using sendto_control/recvfrom_control

Definition at line 309 of file nsapi_types.h.

enum nsapi_stack_level

Enum of standardized stack option levels for use with NetworkStack::setstackopt and getstackopt.

Enumerator
NSAPI_STACK	Stack option level - see nsapi_stack_option_t for options

Definition at line 275 of file nsapi_types.h.

enum nsapi_stack_option

Enum of standardized stack option names for level NSAPI_STACK of NetworkStack::setstackopt and getstackopt.

These options may not be supported on all stacks, in which case NSAPI_ERROR_UNSUPPORTED may be returned.

Enumerator
NSAPI_IPV4_MRU	Sets/gets size of largest IPv4 fragmented datagram to reassemble
NSAPI_IPV6_MRU	Sets/gets size of largest IPv6 fragmented datagram to reassemble

Definition at line 287 of file nsapi_types.h.

enum nsapi_tlssocket_level

Enumerator
NSAPI_TLSSOCKET_LEVEL	TLSSocket option level - see nsapi_tlssocket_option_t for options

Definition at line 327 of file nsapi_types.h.

enum nsapi_tlssocket_option

Enumerator
NSAPI_TLSSOCKET_SET_HOSTNAME	Set host name
NSAPI_TLSSOCKET_SET_CACERT	Set server CA certificate
NSAPI_TLSSOCKET_SET_CLCERT	Set client certificate
NSAPI_TLSSOCKET_SET_CLKEY	Set client key
NSAPI_TLSSOCKET_ENABLE	Enable TLSSocket

Definition at line 331 of file nsapi_types.h.

enum nsapi_version

Enum of IP address versions.

The IP version specifies the type of an IP address.

Enumerator
NSAPI_UNSPEC	Address is unspecified
NSAPI_IPv4	Address is IPv4
NSAPI_IPv6	Address is IPv6

Definition at line 229 of file nsapi_types.h.

Function Documentation

NetworkStack* nsapi_create_stack ( nsapi_stack_t * stack )

Convert a raw nsapi_stack_t object into a C++ NetworkStack object.

Parameters

stack

Pointer to an object that can be converted to a stack

A raw nsapi_stack_t object
A pointer to a network stack
A pointer to a network interface

Returns: Pointer to the underlying network stack

nsapi_error_t nsapi_dns_add_server	(	nsapi_addr_t	addr,
		const char *	interface_name
	)

Add a domain name server to list of servers to query.

Parameters

addr	Destination for the host address

Returns: 0 on success, negative error code on failure

nsapi_error_t nsapi_dns_query	(	nsapi_stack_t *	stack,
		const char *	host,
		nsapi_addr_t *	addr,
		nsapi_version_t	version
	)

Query a domain name server for an IP address of a given hostname.

Parameters

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Destination for the host address
version	IP version to resolve

Returns: 0 on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

nsapi_size_or_error_t nsapi_dns_query_multiple	(	nsapi_stack_t *	stack,
		const char *	host,
		nsapi_addr_t *	addr,
		nsapi_size_t	addr_count,
		nsapi_version_t	version
	)

Query a domain name server for multiple IP address of a given hostname.

Parameters

stack	Network stack as target for DNS query
host	Hostname to resolve
addr	Array for the host addresses
addr_count	Number of addresses allocated in the array
version	IP version to resolve

Returns: Number of addresses found on success, negative error code on failure NSAPI_ERROR_DNS_FAILURE indicates the host could not be found

Data Structures

Macros

Typedefs

Enumerations

Functions

Detailed Description

Macro Definition Documentation

Typedef Documentation

Enumeration Type Documentation

Function Documentation

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