BSD Sockets compatible API . More...

Topics
	Socket options for TLS

Data Structures
struct	zsock_addrinfo
	Definition used when querying address information. More...

struct	ifreq
	Interface description structure. More...

struct	in_pktinfo
	Incoming IPv4 packet information. More...

struct	ip_mreqn
	Struct used when joining or leaving a IPv4 multicast group. More...

struct	ip_mreq
	Struct used when setting a IPv4 multicast network interface. More...

struct	ipv6_mreq
	Struct used when joining or leaving a IPv6 multicast group. More...

struct	in6_pktinfo
	Incoming IPv6 packet information. More...

struct	zsock_pollfd
	Definition of the monitored socket/file descriptor. More...

Macros
#define	ZSOCK_FD_SETSIZE ZVFS_FD_SETSIZE
	Number of file descriptors which can be added to zsock_fd_set.

Typedefs
typedef struct zvfs_fd_set	zsock_fd_set
	Socket file descriptor set.

Functions
void *	zsock_get_context_object (int sock)
	Obtain a file descriptor's associated net context.

int	zsock_socket (int family, int type, int proto)
	Create a network socket.

int	zsock_socketpair (int family, int type, int proto, int *sv)
	Create an unnamed pair of connected sockets.

int	zsock_close (int sock)
	Close a network socket.

int	zsock_shutdown (int sock, int how)
	Shutdown socket send/receive operations.

int	zsock_bind (int sock, const struct sockaddr *addr, socklen_t addrlen)
	Bind a socket to a local network address.

int	zsock_connect (int sock, const struct sockaddr *addr, socklen_t addrlen)
	Connect a socket to a peer network address.

int	zsock_listen (int sock, int backlog)
	Set up a STREAM socket to accept peer connections.

int	zsock_accept (int sock, struct sockaddr addr, socklen_t addrlen)
	Accept a connection on listening socket.

ssize_t	zsock_sendto (int sock, const void buf, size_t len, int flags, const struct sockaddr dest_addr, socklen_t addrlen)
	Send data to an arbitrary network address.

static ssize_t	zsock_send (int sock, const void *buf, size_t len, int flags)
	Send data to a connected peer.

ssize_t	zsock_sendmsg (int sock, const struct msghdr *msg, int flags)
	Send data to an arbitrary network address.

ssize_t	zsock_recvfrom (int sock, void buf, size_t max_len, int flags, struct sockaddr src_addr, socklen_t *addrlen)
	Receive data from an arbitrary network address.

ssize_t	zsock_recvmsg (int sock, struct msghdr *msg, int flags)
	Receive a message from an arbitrary network address.

static ssize_t	zsock_recv (int sock, void *buf, size_t max_len, int flags)
	Receive data from a connected peer.

int	zsock_fcntl_impl (int sock, int cmd, int flags)
	Control blocking/non-blocking mode of a socket.

int	zsock_ioctl_impl (int sock, unsigned long request, va_list ap)
	Control underlying socket parameters.

static int	zsock_poll (struct zsock_pollfd *fds, int nfds, int timeout)
	Efficiently poll multiple sockets for events.

int	zsock_getsockopt (int sock, int level, int optname, void optval, socklen_t optlen)
	Get various socket options.

int	zsock_setsockopt (int sock, int level, int optname, const void *optval, socklen_t optlen)
	Set various socket options.

int	zsock_getpeername (int sock, struct sockaddr addr, socklen_t addrlen)
	Get peer name.

int	zsock_getsockname (int sock, struct sockaddr addr, socklen_t addrlen)
	Get socket name.

int	zsock_gethostname (char *buf, size_t len)
	Get local host name.

static char *	zsock_inet_ntop (sa_family_t family, const void src, char dst, size_t size)
	Convert network address from internal to numeric ASCII form.

int	zsock_inet_pton (sa_family_t family, const char src, void dst)
	Convert network address from numeric ASCII form to internal representation.

int	zsock_getaddrinfo (const char host, const char service, const struct zsock_addrinfo hints, struct zsock_addrinfo *res)
	Resolve a domain name to one or more network addresses.

void	zsock_freeaddrinfo (struct zsock_addrinfo *ai)
	Free results returned by zsock_getaddrinfo()

const char *	zsock_gai_strerror (int errcode)
	Convert zsock_getaddrinfo() error code to textual message.

int	zsock_getnameinfo (const struct sockaddr addr, socklen_t addrlen, char host, socklen_t hostlen, char *serv, socklen_t servlen, int flags)
	Resolve a network address to a domain name or ASCII address.

static int	zsock_select (int nfds, zsock_fd_set readfds, zsock_fd_set writefds, zsock_fd_set exceptfds, struct zsock_timeval timeout)
	Legacy function to poll multiple sockets for events.

static void	ZSOCK_FD_ZERO (zsock_fd_set *set)
	Initialize (clear) fd_set.

static int	ZSOCK_FD_ISSET (int fd, zsock_fd_set *set)
	Check whether socket is a member of fd_set.

static void	ZSOCK_FD_CLR (int fd, zsock_fd_set *set)
	Remove socket from fd_set.

static void	ZSOCK_FD_SET (int fd, zsock_fd_set *set)
	Add socket to fd_set.

Options for poll()
#define	ZSOCK_POLLIN 1
	zsock_poll: Poll for readability

#define	ZSOCK_POLLPRI 2
	zsock_poll: Poll for exceptional condition

#define	ZSOCK_POLLOUT 4
	zsock_poll: Poll for writability

#define	ZSOCK_POLLERR 8
	zsock_poll: Poll results in error condition (output value only)

#define	ZSOCK_POLLHUP 0x10
	zsock_poll: Poll detected closed connection (output value only)

#define	ZSOCK_POLLNVAL 0x20
	zsock_poll: Invalid socket (output value only)

Options for sending and receiving data
#define	ZSOCK_MSG_PEEK 0x02
	zsock_recv: Read data without removing it from socket input queue

#define	ZSOCK_MSG_CTRUNC 0x08
	zsock_recvmsg: Control data buffer too small.

#define	ZSOCK_MSG_TRUNC 0x20
	zsock_recv: return the real length of the datagram, even when it was longer than the passed buffer

#define	ZSOCK_MSG_DONTWAIT 0x40
	zsock_recv/zsock_send: Override operation to non-blocking

#define	ZSOCK_MSG_WAITALL 0x100
	zsock_recv: block until the full amount of data can be returned

Options for shutdown() function
#define	ZSOCK_SHUT_RD 0
	zsock_shutdown: Shut down for reading

#define	ZSOCK_SHUT_WR 1
	zsock_shutdown: Shut down for writing

#define	ZSOCK_SHUT_RDWR 2
	zsock_shutdown: Shut down for both reading and writing

Flags for getaddrinfo() hints
#define	AI_PASSIVE 0x1
	Address for bind() (vs for connect())

#define	AI_CANONNAME 0x2
	Fill in ai_canonname.

#define	AI_NUMERICHOST 0x4
	Assume host address is in numeric notation, don't DNS lookup.

#define	AI_V4MAPPED 0x8
	May return IPv4 mapped address for IPv6

#define	AI_ALL 0x10
	May return both native IPv6 and mapped IPv4 address for IPv6.

#define	AI_ADDRCONFIG 0x20
	IPv4/IPv6 support depends on local system config.

#define	AI_NUMERICSERV 0x400
	Assume service (port) is numeric.

#define	AI_EXTFLAGS 0x800
	Extra flags present (see RFC 5014)

Flags for getnameinfo()
#define	NI_NUMERICHOST 1
	zsock_getnameinfo(): Resolve to numeric address.

#define	NI_NUMERICSERV 2
	zsock_getnameinfo(): Resolve to numeric port number.

#define	NI_NOFQDN 4
	zsock_getnameinfo(): Return only hostname instead of FQDN

#define	NI_NAMEREQD 8
	zsock_getnameinfo(): Dummy option for compatibility

#define	NI_DGRAM 16
	zsock_getnameinfo(): Dummy option for compatibility

#define	NI_MAXHOST 64
	zsock_getnameinfo(): Max supported hostname length

Network interface name description
#define	IFNAMSIZ Z_DEVICE_MAX_NAME_LEN
	Network interface name length.

Socket level options (SOL_SOCKET)
#define	SOL_SOCKET 1
	Socket-level option.

#define	SO_DEBUG 1
	Recording debugging information (ignored, for compatibility)

#define	SO_REUSEADDR 2
	address reuse

#define	SO_TYPE 3
	Type of the socket.

#define	SO_ERROR 4
	Async error.

#define	SO_DONTROUTE 5
	Bypass normal routing and send directly to host (ignored, for compatibility)

#define	SO_BROADCAST 6
	Transmission of broadcast messages is supported (ignored, for compatibility)

#define	SO_SNDBUF 7
	Size of socket send buffer.

#define	SO_RCVBUF 8
	Size of socket recv buffer.

#define	SO_KEEPALIVE 9
	Enable sending keep-alive messages on connections.

#define	SO_OOBINLINE 10
	Place out-of-band data into receive stream (ignored, for compatibility)

#define	SO_PRIORITY 12
	Socket priority.

#define	SO_LINGER 13
	Socket lingers on close (ignored, for compatibility)

#define	SO_REUSEPORT 15
	Allow multiple sockets to reuse a single port.

#define	SO_RCVLOWAT 18
	Receive low watermark (ignored, for compatibility)

#define	SO_SNDLOWAT 19
	Send low watermark (ignored, for compatibility)

#define	SO_RCVTIMEO 20
	Receive timeout Applies to receive functions like recv(), but not to connect()

#define	SO_SNDTIMEO 21
	Send timeout.

#define	SO_BINDTODEVICE 25
	Bind a socket to an interface.

#define	SO_ACCEPTCONN 30
	Socket accepts incoming connections (ignored, for compatibility)

#define	SO_TIMESTAMPING 37
	Timestamp TX RX or both packets.

#define	SO_PROTOCOL 38
	Protocol used with the socket.

#define	SO_DOMAIN 39
	Domain used with SOCKET.

#define	SO_SOCKS5 60
	Enable SOCKS5 for Socket.

#define	SO_TXTIME 61
	Socket TX time (when the data should be sent)

#define	SCM_TXTIME SO_TXTIME
	Socket TX time (same as SO_TXTIME)

#define	SOF_TIMESTAMPING_RX_HARDWARE BIT(0)
	Timestamp generation flags.

#define	SOF_TIMESTAMPING_TX_HARDWARE BIT(1)
	Request TX timestamps generated by network adapter.

TCP level options (IPPROTO_TCP)
#define	TCP_NODELAY 1
	Disable TCP buffering (ignored, for compatibility)

#define	TCP_KEEPIDLE 2
	Start keepalives after this period (seconds)

#define	TCP_KEEPINTVL 3
	Interval between keepalives (seconds)

#define	TCP_KEEPCNT 4
	Number of keepalives before dropping connection.

IPv4 level options (IPPROTO_IP)
#define	IP_TOS 1
	Set or receive the Type-Of-Service value for an outgoing packet.

#define	IP_TTL 2
	Set or receive the Time-To-Live value for an outgoing packet.

#define	IP_PKTINFO 8
	Pass an IP_PKTINFO ancillary message that contains a pktinfo structure that supplies some information about the incoming packet.

#define	IP_MTU 14
	Retrieve the current known path MTU of the current socket.

#define	IP_MULTICAST_IF 32
	Set IPv4 multicast datagram network interface.

#define	IP_MULTICAST_TTL 33
	Set IPv4 multicast TTL value.

#define	IP_ADD_MEMBERSHIP 35
	Join IPv4 multicast group.

#define	IP_DROP_MEMBERSHIP 36
	Leave IPv4 multicast group.

#define	IP_LOCAL_PORT_RANGE 51
	Clamp down the global port range for a given socket.

IPv6 level options (IPPROTO_IPV6)
#define	IPV6_UNICAST_HOPS 16
	Set the unicast hop limit for the socket.

#define	IPV6_MULTICAST_IF 17
	Set multicast output network interface index for the socket.

#define	IPV6_MULTICAST_HOPS 18
	Set the multicast hop limit for the socket.

#define	IPV6_ADD_MEMBERSHIP 20
	Join IPv6 multicast group.

#define	IPV6_DROP_MEMBERSHIP 21
	Leave IPv6 multicast group.

#define	IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP
	Join IPv6 multicast group.

#define	IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP
	Leave IPv6 multicast group.

#define	IPV6_MTU 24
	For getsockopt(), retrieve the current known IPv6 path MTU of the given socket.

#define	IPV6_V6ONLY 26
	Don't support IPv4 access.

#define	IPV6_RECVPKTINFO 49
	Pass an IPV6_RECVPKTINFO ancillary message that contains a in6_pktinfo structure that supplies some information about the incoming packet.

#define	IPV6_ADDR_PREFERENCES 72
	RFC5014: Source address selection.

#define	IPV6_PREFER_SRC_TMP 0x0001
	Prefer temporary address as source.

#define	IPV6_PREFER_SRC_PUBLIC 0x0002
	Prefer public address as source.

#define	IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100
	Either public or temporary address is selected as a default source depending on the output interface configuration (this is the default value).

#define	IPV6_PREFER_SRC_COA 0x0004
	Prefer Care-of address as source.

#define	IPV6_PREFER_SRC_HOME 0x0400
	Prefer Home address as source.

#define	IPV6_PREFER_SRC_CGA 0x0008
	Prefer CGA (Cryptographically Generated Address) address as source.

#define	IPV6_PREFER_SRC_NONCGA 0x0800
	Prefer non-CGA address as source.

#define	IPV6_TCLASS 67
	Set or receive the traffic class value for an outgoing packet.

Backlog size for listen()
#define	SOMAXCONN 128
	listen: The maximum backlog queue length

Macros for checking special IPv6 addresses.
#define	IN6_IS_ADDR_UNSPECIFIED(addr)
	Check unspecified IPv6 address.

#define	IN6_IS_ADDR_LOOPBACK(addr)
	Check loopback IPv6 address.

#define	IN6_IS_ADDR_MULTICAST(addr)
	Check IPv6 multicast address.

#define	IN6_IS_ADDR_LINKLOCAL(addr)
	Check IPv6 link local address.

#define	IN6_IS_ADDR_SITELOCAL(addr)
	Check IPv6 site local address.

#define	IN6_IS_ADDR_V4MAPPED(addr)
	Check IPv6 v4 mapped address.

#define	IN6_IS_ADDR_MC_GLOBAL(addr)
	Check IPv6 multicast global address.

#define	IN6_IS_ADDR_MC_NODELOCAL(addr)
	Check IPv6 multicast node local address.

#define	IN6_IS_ADDR_MC_LINKLOCAL(addr)
	Check IPv6 multicast link local address.

#define	IN6_IS_ADDR_MC_SITELOCAL(addr)
	Check IPv6 multicast site local address.

#define	IN6_IS_ADDR_MC_ORGLOCAL(addr)
	Check IPv6 multicast organization local address.

Detailed Description

BSD Sockets compatible API .

Since: 1.9

Version: 1.0.0

Macro Definition Documentation

◆ AI_ADDRCONFIG

#define AI_ADDRCONFIG 0x20

#include <zephyr/net/socket.h>

IPv4/IPv6 support depends on local system config.

◆ AI_ALL

#define AI_ALL 0x10

#include <zephyr/net/socket.h>

May return both native IPv6 and mapped IPv4 address for IPv6.

◆ AI_CANONNAME

#define AI_CANONNAME 0x2

#include <zephyr/net/socket.h>

Fill in ai_canonname.

◆ AI_EXTFLAGS

#define AI_EXTFLAGS 0x800

#include <zephyr/net/socket.h>

Extra flags present (see RFC 5014)

◆ AI_NUMERICHOST

#define AI_NUMERICHOST 0x4

#include <zephyr/net/socket.h>

Assume host address is in numeric notation, don't DNS lookup.

◆ AI_NUMERICSERV

#define AI_NUMERICSERV 0x400

#include <zephyr/net/socket.h>

Assume service (port) is numeric.

◆ AI_PASSIVE

#define AI_PASSIVE 0x1

#include <zephyr/net/socket.h>

Address for bind() (vs for connect())

◆ AI_V4MAPPED

#define AI_V4MAPPED 0x8

#include <zephyr/net/socket.h>

May return IPv4 mapped address for IPv6

◆ IFNAMSIZ

#define IFNAMSIZ Z_DEVICE_MAX_NAME_LEN

#include <zephyr/net/socket.h>

Network interface name length.

◆ IN6_IS_ADDR_LINKLOCAL

#define IN6_IS_ADDR_LINKLOCAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_ll_addr(addr)

net_ipv6_is_ll_addr

static bool net_ipv6_is_ll_addr(const struct in6_addr *addr)

Check if the given IPv6 address is a link local address.

Definition net_ip.h:980

Check IPv6 link local address.

◆ IN6_IS_ADDR_LOOPBACK

#define IN6_IS_ADDR_LOOPBACK ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_loopback(addr)

net_ipv6_is_addr_loopback

static bool net_ipv6_is_addr_loopback(struct in6_addr *addr)

Check if the IPv6 address is a loopback address (::1).

Definition net_ip.h:679

Check loopback IPv6 address.

◆ IN6_IS_ADDR_MC_GLOBAL

#define IN6_IS_ADDR_MC_GLOBAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_mcast_global(addr)

net_ipv6_is_addr_mcast_global

static bool net_ipv6_is_addr_mcast_global(const struct in6_addr *addr)

Check if the IPv6 address is a global multicast address (FFxE::/16).

Definition net_ip.h:1209

Check IPv6 multicast global address.

◆ IN6_IS_ADDR_MC_LINKLOCAL

#define IN6_IS_ADDR_MC_LINKLOCAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_mcast_link(addr)

net_ipv6_is_addr_mcast_link

static bool net_ipv6_is_addr_mcast_link(const struct in6_addr *addr)

Check if the IPv6 address is a link local scope multicast address (FFx2::).

Definition net_ip.h:1237

Check IPv6 multicast link local address.

◆ IN6_IS_ADDR_MC_NODELOCAL

#define IN6_IS_ADDR_MC_NODELOCAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_mcast_iface(addr)

net_ipv6_is_addr_mcast_iface

static bool net_ipv6_is_addr_mcast_iface(const struct in6_addr *addr)

Check if the IPv6 address is a interface scope multicast address (FFx1::).

Definition net_ip.h:1223

Check IPv6 multicast node local address.

◆ IN6_IS_ADDR_MC_ORGLOCAL

#define IN6_IS_ADDR_MC_ORGLOCAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_mcast_org(addr)

net_ipv6_is_addr_mcast_org

static bool net_ipv6_is_addr_mcast_org(const struct in6_addr *addr)

Check if the IPv6 address is an organization scope multicast address (FFx8::).

Definition net_ip.h:1279

Check IPv6 multicast organization local address.

◆ IN6_IS_ADDR_MC_SITELOCAL

#define IN6_IS_ADDR_MC_SITELOCAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_mcast_site(addr)

net_ipv6_is_addr_mcast_site

static bool net_ipv6_is_addr_mcast_site(const struct in6_addr *addr)

Check if the IPv6 address is a site scope multicast address (FFx5::).

Definition net_ip.h:1265

Check IPv6 multicast site local address.

◆ IN6_IS_ADDR_MULTICAST

#define IN6_IS_ADDR_MULTICAST ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_addr_mcast(addr)

net_ipv6_is_addr_mcast

static bool net_ipv6_is_addr_mcast(const struct in6_addr *addr)

Check if the IPv6 address is a multicast address.

Definition net_ip.h:694

Check IPv6 multicast address.

◆ IN6_IS_ADDR_SITELOCAL

#define IN6_IS_ADDR_SITELOCAL ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_is_sl_addr(addr)

net_ipv6_is_sl_addr

static bool net_ipv6_is_sl_addr(const struct in6_addr *addr)

Check if the given IPv6 address is a site local address.

Definition net_ip.h:992

Check IPv6 site local address.

◆ IN6_IS_ADDR_UNSPECIFIED

#define IN6_IS_ADDR_UNSPECIFIED ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_addr_cmp(net_ipv6_unspecified_address(), addr)

net_ipv6_addr_cmp

static bool net_ipv6_addr_cmp(const struct in6_addr *addr1, const struct in6_addr *addr2)

Compare two IPv6 addresses.

Definition net_ip.h:952

net_ipv6_unspecified_address

const struct in6_addr * net_ipv6_unspecified_address(void)

Return pointer to any (all bits zeros) IPv6 address.

Check unspecified IPv6 address.

◆ IN6_IS_ADDR_V4MAPPED

#define IN6_IS_ADDR_V4MAPPED ( addr )

#include <zephyr/net/socket.h>

Value:

net_ipv6_addr_is_v4_mapped(addr)

net_ipv6_addr_is_v4_mapped

static bool net_ipv6_addr_is_v4_mapped(const struct in6_addr *addr)

Is the IPv6 address an IPv4 mapped one.

Definition net_ip.h:1450

Check IPv6 v4 mapped address.

◆ IP_ADD_MEMBERSHIP

#define IP_ADD_MEMBERSHIP 35

#include <zephyr/net/socket.h>

Join IPv4 multicast group.

◆ IP_DROP_MEMBERSHIP

#define IP_DROP_MEMBERSHIP 36

#include <zephyr/net/socket.h>

Leave IPv4 multicast group.

◆ IP_LOCAL_PORT_RANGE

#define IP_LOCAL_PORT_RANGE 51

#include <zephyr/net/socket.h>

Clamp down the global port range for a given socket.

◆ IP_MTU

#define IP_MTU 14

#include <zephyr/net/socket.h>

Retrieve the current known path MTU of the current socket.

Returns an integer. IP_MTU is valid only for getsockopt and can be employed only when the socket has been connected.

◆ IP_MULTICAST_IF

#define IP_MULTICAST_IF 32

#include <zephyr/net/socket.h>

Set IPv4 multicast datagram network interface.

◆ IP_MULTICAST_TTL

#define IP_MULTICAST_TTL 33

#include <zephyr/net/socket.h>

Set IPv4 multicast TTL value.

◆ IP_PKTINFO

#define IP_PKTINFO 8

#include <zephyr/net/socket.h>

Pass an IP_PKTINFO ancillary message that contains a pktinfo structure that supplies some information about the incoming packet.

◆ IP_TOS

#define IP_TOS 1

#include <zephyr/net/socket.h>

Set or receive the Type-Of-Service value for an outgoing packet.

◆ IP_TTL

#define IP_TTL 2

#include <zephyr/net/socket.h>

Set or receive the Time-To-Live value for an outgoing packet.

◆ IPV6_ADD_MEMBERSHIP

#define IPV6_ADD_MEMBERSHIP 20

#include <zephyr/net/socket.h>

Join IPv6 multicast group.

◆ IPV6_ADDR_PREFERENCES

#define IPV6_ADDR_PREFERENCES 72

#include <zephyr/net/socket.h>

RFC5014: Source address selection.

◆ IPV6_DROP_MEMBERSHIP

#define IPV6_DROP_MEMBERSHIP 21

#include <zephyr/net/socket.h>

Leave IPv6 multicast group.

◆ IPV6_JOIN_GROUP

#define IPV6_JOIN_GROUP IPV6_ADD_MEMBERSHIP

#include <zephyr/net/socket.h>

Join IPv6 multicast group.

◆ IPV6_LEAVE_GROUP

#define IPV6_LEAVE_GROUP IPV6_DROP_MEMBERSHIP

#include <zephyr/net/socket.h>

Leave IPv6 multicast group.

◆ IPV6_MTU

#define IPV6_MTU 24

#include <zephyr/net/socket.h>

For getsockopt(), retrieve the current known IPv6 path MTU of the given socket.

Valid only when the socket has been connected. For setsockopt(), set the MTU to be used for the socket. The MTU is limited by the device MTU or the path MTU when path MTU discovery is enabled.

◆ IPV6_MULTICAST_HOPS

#define IPV6_MULTICAST_HOPS 18

#include <zephyr/net/socket.h>

Set the multicast hop limit for the socket.

◆ IPV6_MULTICAST_IF

#define IPV6_MULTICAST_IF 17

#include <zephyr/net/socket.h>

Set multicast output network interface index for the socket.

◆ IPV6_PREFER_SRC_CGA

#define IPV6_PREFER_SRC_CGA 0x0008

#include <zephyr/net/socket.h>

Prefer CGA (Cryptographically Generated Address) address as source.

Ignored in Zephyr.

◆ IPV6_PREFER_SRC_COA

#define IPV6_PREFER_SRC_COA 0x0004

#include <zephyr/net/socket.h>

Prefer Care-of address as source.

Ignored in Zephyr.

◆ IPV6_PREFER_SRC_HOME

#define IPV6_PREFER_SRC_HOME 0x0400

#include <zephyr/net/socket.h>

Prefer Home address as source.

Ignored in Zephyr.

◆ IPV6_PREFER_SRC_NONCGA

#define IPV6_PREFER_SRC_NONCGA 0x0800

#include <zephyr/net/socket.h>

Prefer non-CGA address as source.

Ignored in Zephyr.

◆ IPV6_PREFER_SRC_PUBLIC

#define IPV6_PREFER_SRC_PUBLIC 0x0002

#include <zephyr/net/socket.h>

Prefer public address as source.

◆ IPV6_PREFER_SRC_PUBTMP_DEFAULT

#define IPV6_PREFER_SRC_PUBTMP_DEFAULT 0x0100

#include <zephyr/net/socket.h>

Either public or temporary address is selected as a default source depending on the output interface configuration (this is the default value).

This is Linux specific option not found in the RFC.

◆ IPV6_PREFER_SRC_TMP

#define IPV6_PREFER_SRC_TMP 0x0001

#include <zephyr/net/socket.h>

Prefer temporary address as source.

◆ IPV6_RECVPKTINFO

#define IPV6_RECVPKTINFO 49

#include <zephyr/net/socket.h>

Pass an IPV6_RECVPKTINFO ancillary message that contains a in6_pktinfo structure that supplies some information about the incoming packet.

See RFC 3542.

◆ IPV6_TCLASS

#define IPV6_TCLASS 67

#include <zephyr/net/socket.h>

Set or receive the traffic class value for an outgoing packet.

◆ IPV6_UNICAST_HOPS

#define IPV6_UNICAST_HOPS 16

#include <zephyr/net/socket.h>

Set the unicast hop limit for the socket.

◆ IPV6_V6ONLY

#define IPV6_V6ONLY 26

#include <zephyr/net/socket.h>

Don't support IPv4 access.

◆ NI_DGRAM

#define NI_DGRAM 16

#include <zephyr/net/socket.h>

zsock_getnameinfo(): Dummy option for compatibility

◆ NI_MAXHOST

#define NI_MAXHOST 64

#include <zephyr/net/socket.h>

zsock_getnameinfo(): Max supported hostname length

◆ NI_NAMEREQD

#define NI_NAMEREQD 8

#include <zephyr/net/socket.h>

zsock_getnameinfo(): Dummy option for compatibility

◆ NI_NOFQDN

#define NI_NOFQDN 4

#include <zephyr/net/socket.h>

zsock_getnameinfo(): Return only hostname instead of FQDN

◆ NI_NUMERICHOST

#define NI_NUMERICHOST 1

#include <zephyr/net/socket.h>

zsock_getnameinfo(): Resolve to numeric address.

◆ NI_NUMERICSERV

#define NI_NUMERICSERV 2

#include <zephyr/net/socket.h>

zsock_getnameinfo(): Resolve to numeric port number.

◆ SCM_TXTIME

#define SCM_TXTIME SO_TXTIME

#include <zephyr/net/socket.h>

Socket TX time (same as SO_TXTIME)

◆ SO_ACCEPTCONN

#define SO_ACCEPTCONN 30

#include <zephyr/net/socket.h>

Socket accepts incoming connections (ignored, for compatibility)

◆ SO_BINDTODEVICE

#define SO_BINDTODEVICE 25

#include <zephyr/net/socket.h>

Bind a socket to an interface.

◆ SO_BROADCAST

#define SO_BROADCAST 6

#include <zephyr/net/socket.h>

Transmission of broadcast messages is supported (ignored, for compatibility)

◆ SO_DEBUG

#define SO_DEBUG 1

#include <zephyr/net/socket.h>

Recording debugging information (ignored, for compatibility)

◆ SO_DOMAIN

#define SO_DOMAIN 39

#include <zephyr/net/socket.h>

Domain used with SOCKET.

◆ SO_DONTROUTE

#define SO_DONTROUTE 5

#include <zephyr/net/socket.h>

Bypass normal routing and send directly to host (ignored, for compatibility)

◆ SO_ERROR

#define SO_ERROR 4

#include <zephyr/net/socket.h>

Async error.

◆ SO_KEEPALIVE

#define SO_KEEPALIVE 9

#include <zephyr/net/socket.h>

Enable sending keep-alive messages on connections.

◆ SO_LINGER

#define SO_LINGER 13

#include <zephyr/net/socket.h>

Socket lingers on close (ignored, for compatibility)

◆ SO_OOBINLINE

#define SO_OOBINLINE 10

#include <zephyr/net/socket.h>

Place out-of-band data into receive stream (ignored, for compatibility)

◆ SO_PRIORITY

#define SO_PRIORITY 12

#include <zephyr/net/socket.h>

Socket priority.

◆ SO_PROTOCOL

#define SO_PROTOCOL 38

#include <zephyr/net/socket.h>

Protocol used with the socket.

◆ SO_RCVBUF

#define SO_RCVBUF 8

#include <zephyr/net/socket.h>

Size of socket recv buffer.

◆ SO_RCVLOWAT

#define SO_RCVLOWAT 18

#include <zephyr/net/socket.h>

Receive low watermark (ignored, for compatibility)

◆ SO_RCVTIMEO

#define SO_RCVTIMEO 20

#include <zephyr/net/socket.h>

Receive timeout Applies to receive functions like recv(), but not to connect()

◆ SO_REUSEADDR

#define SO_REUSEADDR 2

#include <zephyr/net/socket.h>

address reuse

◆ SO_REUSEPORT

#define SO_REUSEPORT 15

#include <zephyr/net/socket.h>

Allow multiple sockets to reuse a single port.

◆ SO_SNDBUF

#define SO_SNDBUF 7

#include <zephyr/net/socket.h>

Size of socket send buffer.

◆ SO_SNDLOWAT

#define SO_SNDLOWAT 19

#include <zephyr/net/socket.h>

Send low watermark (ignored, for compatibility)

◆ SO_SNDTIMEO

#define SO_SNDTIMEO 21

#include <zephyr/net/socket.h>

Send timeout.

◆ SO_SOCKS5

#define SO_SOCKS5 60

#include <zephyr/net/socket.h>

Enable SOCKS5 for Socket.

◆ SO_TIMESTAMPING

#define SO_TIMESTAMPING 37

#include <zephyr/net/socket.h>

Timestamp TX RX or both packets.

Supports multiple timestamp sources.

◆ SO_TXTIME

#define SO_TXTIME 61

#include <zephyr/net/socket.h>

Socket TX time (when the data should be sent)

◆ SO_TYPE

#define SO_TYPE 3

#include <zephyr/net/socket.h>

Type of the socket.

◆ SOF_TIMESTAMPING_RX_HARDWARE

#define SOF_TIMESTAMPING_RX_HARDWARE BIT(0)

#include <zephyr/net/socket.h>

Timestamp generation flags.

Request RX timestamps generated by network adapter.

◆ SOF_TIMESTAMPING_TX_HARDWARE

#define SOF_TIMESTAMPING_TX_HARDWARE BIT(1)

#include <zephyr/net/socket.h>

Request TX timestamps generated by network adapter.

This can be enabled via socket option or control messages.

◆ SOL_SOCKET

#define SOL_SOCKET 1

#include <zephyr/net/socket.h>

Socket-level option.

◆ SOMAXCONN

#define SOMAXCONN 128

#include <zephyr/net/socket.h>

listen: The maximum backlog queue length

◆ TCP_KEEPCNT

#define TCP_KEEPCNT 4

#include <zephyr/net/socket.h>

Number of keepalives before dropping connection.

◆ TCP_KEEPIDLE

#define TCP_KEEPIDLE 2

#include <zephyr/net/socket.h>

Start keepalives after this period (seconds)

◆ TCP_KEEPINTVL

#define TCP_KEEPINTVL 3

#include <zephyr/net/socket.h>

Interval between keepalives (seconds)

◆ TCP_NODELAY

#define TCP_NODELAY 1

#include <zephyr/net/socket.h>

Disable TCP buffering (ignored, for compatibility)

◆ ZSOCK_FD_SETSIZE

#define ZSOCK_FD_SETSIZE ZVFS_FD_SETSIZE

#include <zephyr/net/socket_select.h>

Number of file descriptors which can be added to zsock_fd_set.

◆ ZSOCK_MSG_CTRUNC

#define ZSOCK_MSG_CTRUNC 0x08

#include <zephyr/net/socket.h>

zsock_recvmsg: Control data buffer too small.

◆ ZSOCK_MSG_DONTWAIT

#define ZSOCK_MSG_DONTWAIT 0x40

#include <zephyr/net/socket.h>

zsock_recv/zsock_send: Override operation to non-blocking

◆ ZSOCK_MSG_PEEK

#define ZSOCK_MSG_PEEK 0x02

#include <zephyr/net/socket.h>

zsock_recv: Read data without removing it from socket input queue

◆ ZSOCK_MSG_TRUNC

#define ZSOCK_MSG_TRUNC 0x20

#include <zephyr/net/socket.h>

zsock_recv: return the real length of the datagram, even when it was longer than the passed buffer

◆ ZSOCK_MSG_WAITALL

#define ZSOCK_MSG_WAITALL 0x100

#include <zephyr/net/socket.h>

zsock_recv: block until the full amount of data can be returned

◆ ZSOCK_POLLERR

#define ZSOCK_POLLERR 8

#include <zephyr/net/socket.h>

zsock_poll: Poll results in error condition (output value only)

◆ ZSOCK_POLLHUP

#define ZSOCK_POLLHUP 0x10

#include <zephyr/net/socket.h>

zsock_poll: Poll detected closed connection (output value only)

◆ ZSOCK_POLLIN

#define ZSOCK_POLLIN 1

#include <zephyr/net/socket.h>

zsock_poll: Poll for readability

◆ ZSOCK_POLLNVAL

#define ZSOCK_POLLNVAL 0x20

#include <zephyr/net/socket.h>

zsock_poll: Invalid socket (output value only)

◆ ZSOCK_POLLOUT

#define ZSOCK_POLLOUT 4

#include <zephyr/net/socket.h>

zsock_poll: Poll for writability

◆ ZSOCK_POLLPRI

#define ZSOCK_POLLPRI 2

#include <zephyr/net/socket.h>

zsock_poll: Poll for exceptional condition

◆ ZSOCK_SHUT_RD

#define ZSOCK_SHUT_RD 0

#include <zephyr/net/socket.h>

zsock_shutdown: Shut down for reading

◆ ZSOCK_SHUT_RDWR

#define ZSOCK_SHUT_RDWR 2

#include <zephyr/net/socket.h>

zsock_shutdown: Shut down for both reading and writing

◆ ZSOCK_SHUT_WR

#define ZSOCK_SHUT_WR 1

#include <zephyr/net/socket.h>

zsock_shutdown: Shut down for writing

Typedef Documentation

◆ zsock_fd_set

typedef struct zvfs_fd_set zsock_fd_set

#include <zephyr/net/socket_select.h>

Socket file descriptor set.

Function Documentation

◆ zsock_accept()

int zsock_accept	(	int	sock,
		struct sockaddr *	addr,
		socklen_t *	addrlen )

#include <zephyr/net/socket.h>

Accept a connection on listening socket.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/accept.html for normative description. This function is also exposed as accept() if CONFIG_POSIX_API is defined.

◆ zsock_bind()

int zsock_bind	(	int	sock,
		const struct sockaddr *	addr,
		socklen_t	addrlen )

#include <zephyr/net/socket.h>

Bind a socket to a local network address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/bind.html for normative description. This function is also exposed as bind() if CONFIG_POSIX_API is defined.

◆ zsock_close()

int zsock_close ( int sock )

#include <zephyr/net/socket.h>

Close a network socket.

Close a network socket. This function is also exposed as close() if CONFIG_POSIX_API is defined (in which case it may conflict with generic POSIX close() function).

◆ zsock_connect()

int zsock_connect	(	int	sock,
		const struct sockaddr *	addr,
		socklen_t	addrlen )

#include <zephyr/net/socket.h>

Connect a socket to a peer network address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/connect.html for normative description. This function is also exposed as connect() if CONFIG_POSIX_API is defined.

◆ zsock_fcntl_impl()

int zsock_fcntl_impl	(	int	sock,
		int	cmd,
		int	flags )

#include <zephyr/net/socket.h>

Control blocking/non-blocking mode of a socket.

This functions allow to (only) configure a socket for blocking or non-blocking operation (O_NONBLOCK). This function is also exposed as fcntl() if CONFIG_POSIX_API is defined (in which case it may conflict with generic POSIX fcntl() function).

◆ ZSOCK_FD_CLR()

static void ZSOCK_FD_CLR	(	int	fd,
		zsock_fd_set *	set )

inlinestatic

#include <zephyr/net/socket_select.h>

Remove socket from fd_set.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html for normative description. This function is also exposed as FD_CLR() if CONFIG_POSIX_API is defined.

◆ ZSOCK_FD_ISSET()

static int ZSOCK_FD_ISSET	(	int	fd,
		zsock_fd_set *	set )

inlinestatic

#include <zephyr/net/socket_select.h>

Check whether socket is a member of fd_set.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html for normative description. This function is also exposed as FD_ISSET() if CONFIG_POSIX_API is defined.

◆ ZSOCK_FD_SET()

static void ZSOCK_FD_SET	(	int	fd,
		zsock_fd_set *	set )

inlinestatic

#include <zephyr/net/socket_select.h>

Add socket to fd_set.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html for normative description. This function is also exposed as FD_SET() if CONFIG_POSIX_API is defined.

◆ ZSOCK_FD_ZERO()

static void ZSOCK_FD_ZERO ( zsock_fd_set * set )

inlinestatic

#include <zephyr/net/socket_select.h>

Initialize (clear) fd_set.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html for normative description. This function is also exposed as FD_ZERO() if CONFIG_POSIX_API is defined.

◆ zsock_freeaddrinfo()

void zsock_freeaddrinfo ( struct zsock_addrinfo * ai )

#include <zephyr/net/socket.h>

Free results returned by zsock_getaddrinfo()

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/freeaddrinfo.html for normative description. This function is also exposed as freeaddrinfo() if CONFIG_POSIX_API is defined.

◆ zsock_gai_strerror()

const char * zsock_gai_strerror ( int errcode )

#include <zephyr/net/socket.h>

Convert zsock_getaddrinfo() error code to textual message.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/gai_strerror.html for normative description. This function is also exposed as gai_strerror() if CONFIG_POSIX_API is defined.

◆ zsock_get_context_object()

void * zsock_get_context_object ( int sock )

#include <zephyr/net/socket.h>

Obtain a file descriptor's associated net context.

With CONFIG_USERSPACE enabled, the kernel's object permission system must apply to socket file descriptors. When a socket is opened, by default only the caller has permission, access by other threads will fail unless they have been specifically granted permission.

This is achieved by tagging data structure definitions that implement the underlying object associated with a network socket file descriptor with '__net_socket`. All pointers to instances of these will be known to the kernel as kernel objects with type K_OBJ_NET_SOCKET.

This API is intended for threads that need to grant access to the object associated with a particular file descriptor to another thread. The returned pointer represents the underlying K_OBJ_NET_SOCKET and may be passed to APIs like k_object_access_grant().

In a system like Linux which has the notion of threads running in processes in a shared virtual address space, this sort of management is unnecessary as the scope of file descriptors is implemented at the process level.

However in Zephyr the file descriptor scope is global, and MPU-based systems are not able to implement a process-like model due to the lack of memory virtualization hardware. They use discrete object permissions and memory domains instead to define thread access scope.

User threads will have no direct access to the returned object and will fault if they try to access its memory; the pointer can only be used to make permission assignment calls, which follow exactly the rules for other kernel objects like device drivers and IPC.

Parameters

sock	file descriptor

Returns: pointer to associated network socket object, or NULL if the file descriptor wasn't valid or the caller had no access permission

◆ zsock_getaddrinfo()

int zsock_getaddrinfo	(	const char *	host,
		const char *	service,
		const struct zsock_addrinfo *	hints,
		struct zsock_addrinfo **	res )

#include <zephyr/net/socket.h>

Resolve a domain name to one or more network addresses.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/getaddrinfo.html for normative description. This function is also exposed as getaddrinfo() if CONFIG_POSIX_API is defined.

◆ zsock_gethostname()

int zsock_gethostname	(	char *	buf,
		size_t	len )

#include <zephyr/net/socket.h>

Get local host name.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/gethostname.html for normative description. This function is also exposed as gethostname() if CONFIG_POSIX_API is defined.

◆ zsock_getnameinfo()

int zsock_getnameinfo	(	const struct sockaddr *	addr,
		socklen_t	addrlen,
		char *	host,
		socklen_t	hostlen,
		char *	serv,
		socklen_t	servlen,
		int	flags )

#include <zephyr/net/socket.h>

Resolve a network address to a domain name or ASCII address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/getnameinfo.html for normative description. This function is also exposed as getnameinfo() if CONFIG_POSIX_API is defined.

◆ zsock_getpeername()

int zsock_getpeername	(	int	sock,
		struct sockaddr *	addr,
		socklen_t *	addrlen )

#include <zephyr/net/socket.h>

Get peer name.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/getpeername.html for normative description. This function is also exposed as getpeername() if CONFIG_POSIX_API is defined.

◆ zsock_getsockname()

int zsock_getsockname	(	int	sock,
		struct sockaddr *	addr,
		socklen_t *	addrlen )

#include <zephyr/net/socket.h>

Get socket name.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsockname.html for normative description. This function is also exposed as getsockname() if CONFIG_POSIX_API is defined.

◆ zsock_getsockopt()

int zsock_getsockopt	(	int	sock,
		int	level,
		int	optname,
		void *	optval,
		socklen_t *	optlen )

#include <zephyr/net/socket.h>

Get various socket options.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/getsockopt.html for normative description. In Zephyr this function supports a subset of socket options described by POSIX, but also some additional options available in Linux (some options are dummy and provided to ease porting of existing code). This function is also exposed as getsockopt() if CONFIG_POSIX_API is defined.

◆ zsock_inet_ntop()

static char * zsock_inet_ntop	(	sa_family_t	family,
		const void *	src,
		char *	dst,
		size_t	size )

inlinestatic

#include <zephyr/net/socket.h>

Convert network address from internal to numeric ASCII form.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/inet_ntop.html for normative description. This function is also exposed as inet_ntop() if CONFIG_POSIX_API is defined.

◆ zsock_inet_pton()

int zsock_inet_pton	(	sa_family_t	family,
		const char *	src,
		void *	dst )

#include <zephyr/net/socket.h>

Convert network address from numeric ASCII form to internal representation.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/inet_pton.html for normative description. This function is also exposed as inet_pton() if CONFIG_POSIX_API is defined.

◆ zsock_ioctl_impl()

int zsock_ioctl_impl	(	int	sock,
		unsigned long	request,
		va_list	ap )

#include <zephyr/net/socket.h>

Control underlying socket parameters.

See POSIX.1-2017 article https://pubs.opengroup.org/onlinepubs/9699919799/functions/ioctl.html for normative description. This function enables querying or manipulating underlying socket parameters. Currently supported request values include ZFD_IOCTL_FIONBIO, and ZFD_IOCTL_FIONREAD, to set non-blocking mode, and query the number of bytes available to read, respectively. This function is also exposed as ioctl() if CONFIG_POSIX_API is defined (in which case it may conflict with generic POSIX ioctl() function).

◆ zsock_listen()

int zsock_listen	(	int	sock,
		int	backlog )

#include <zephyr/net/socket.h>

Set up a STREAM socket to accept peer connections.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/listen.html for normative description. This function is also exposed as listen() if CONFIG_POSIX_API is defined.

◆ zsock_poll()

static int zsock_poll	(	struct zsock_pollfd *	fds,
		int	nfds,
		int	timeout )

inlinestatic

#include <zephyr/net/socket.h>

Efficiently poll multiple sockets for events.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/poll.html for normative description. This function is also exposed as poll() if CONFIG_POSIX_API is defined (in which case it may conflict with generic POSIX poll() function).

◆ zsock_recv()

static ssize_t zsock_recv	(	int	sock,
		void *	buf,
		size_t	max_len,
		int	flags )

inlinestatic

#include <zephyr/net/socket.h>

Receive data from a connected peer.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/recv.html for normative description. This function is also exposed as recv() if CONFIG_POSIX_API is defined.

◆ zsock_recvfrom()

ssize_t zsock_recvfrom	(	int	sock,
		void *	buf,
		size_t	max_len,
		int	flags,
		struct sockaddr *	src_addr,
		socklen_t *	addrlen )

#include <zephyr/net/socket.h>

Receive data from an arbitrary network address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/recvfrom.html for normative description. This function is also exposed as recvfrom() if CONFIG_POSIX_API is defined.

◆ zsock_recvmsg()

ssize_t zsock_recvmsg	(	int	sock,
		struct msghdr *	msg,
		int	flags )

#include <zephyr/net/socket.h>

Receive a message from an arbitrary network address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/recvmsg.html for normative description. This function is also exposed as recvmsg() if CONFIG_POSIX_API is defined.

◆ zsock_select()

static int zsock_select	(	int	nfds,
		zsock_fd_set *	readfds,
		zsock_fd_set *	writefds,
		zsock_fd_set *	exceptfds,
		struct zsock_timeval *	timeout )

inlinestatic

#include <zephyr/net/socket_select.h>

Legacy function to poll multiple sockets for events.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/select.html for normative description. This function is provided to ease porting of existing code and not recommended for usage due to its inefficiency, use zsock_poll() instead. In Zephyr this function works only with sockets, not arbitrary file descriptors. This function is also exposed as select() if CONFIG_POSIX_API is defined (in which case it may conflict with generic POSIX select() function).

◆ zsock_send()

static ssize_t zsock_send	(	int	sock,
		const void *	buf,
		size_t	len,
		int	flags )

inlinestatic

#include <zephyr/net/socket.h>

Send data to a connected peer.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/send.html for normative description. This function is also exposed as send() if CONFIG_POSIX_API is defined.

◆ zsock_sendmsg()

ssize_t zsock_sendmsg	(	int	sock,
		const struct msghdr *	msg,
		int	flags )

#include <zephyr/net/socket.h>

Send data to an arbitrary network address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/sendmsg.html for normative description. This function is also exposed as sendmsg() if CONFIG_POSIX_API is defined.

◆ zsock_sendto()

ssize_t zsock_sendto	(	int	sock,
		const void *	buf,
		size_t	len,
		int	flags,
		const struct sockaddr *	dest_addr,
		socklen_t	addrlen )

#include <zephyr/net/socket.h>

Send data to an arbitrary network address.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/sendto.html for normative description. This function is also exposed as sendto() if CONFIG_POSIX_API is defined.

◆ zsock_setsockopt()

int zsock_setsockopt	(	int	sock,
		int	level,
		int	optname,
		const void *	optval,
		socklen_t	optlen )

#include <zephyr/net/socket.h>

Set various socket options.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/setsockopt.html for normative description. In Zephyr this function supports a subset of socket options described by POSIX, but also some additional options available in Linux (some options are dummy and provided to ease porting of existing code). This function is also exposed as setsockopt() if CONFIG_POSIX_API is defined.

◆ zsock_shutdown()

int zsock_shutdown	(	int	sock,
		int	how )

#include <zephyr/net/socket.h>

Shutdown socket send/receive operations.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/shutdown.html for normative description, but currently this function has no effect in Zephyr and provided solely for compatibility with existing code. This function is also exposed as shutdown() if CONFIG_POSIX_API is defined.

◆ zsock_socket()

int zsock_socket	(	int	family,
		int	type,
		int	proto )

#include <zephyr/net/socket.h>

Create a network socket.

See POSIX.1-2017 article http://pubs.opengroup.org/onlinepubs/9699919799/functions/socket.html for normative description. This function is also exposed as socket() if CONFIG_POSIX_API is defined.

If CONFIG_USERSPACE is enabled, the caller will be granted access to the context object associated with the returned file descriptor.

See also: zsock_get_context_object()

◆ zsock_socketpair()

int zsock_socketpair	(	int	family,
		int	type,
		int	proto,
		int *	sv )

#include <zephyr/net/socket.h>

Create an unnamed pair of connected sockets.

See POSIX.1-2017 article https://pubs.opengroup.org/onlinepubs/009695399/functions/socketpair.html for normative description. This function is also exposed as socketpair() if CONFIG_POSIX_API is defined.

Topics

Data Structures

Macros

Typedefs

Functions

Options for poll()

Options for sending and receiving data

Options for shutdown() function

Flags for getaddrinfo() hints

Flags for getnameinfo()

Network interface name description

Socket level options (SOL_SOCKET)

TCP level options (IPPROTO_TCP)

IPv4 level options (IPPROTO_IP)

IPv6 level options (IPPROTO_IPV6)

Backlog size for listen()

Macros for checking special IPv6 addresses.

Detailed Description

Macro Definition Documentation

◆ AI_ADDRCONFIG

◆ AI_ALL

◆ AI_CANONNAME

◆ AI_EXTFLAGS

◆ AI_NUMERICHOST

◆ AI_NUMERICSERV

◆ AI_PASSIVE

◆ AI_V4MAPPED

◆ IFNAMSIZ

◆ IN6_IS_ADDR_LINKLOCAL

◆ IN6_IS_ADDR_LOOPBACK

◆ IN6_IS_ADDR_MC_GLOBAL

◆ IN6_IS_ADDR_MC_LINKLOCAL

◆ IN6_IS_ADDR_MC_NODELOCAL

◆ IN6_IS_ADDR_MC_ORGLOCAL

◆ IN6_IS_ADDR_MC_SITELOCAL

◆ IN6_IS_ADDR_MULTICAST

◆ IN6_IS_ADDR_SITELOCAL

◆ IN6_IS_ADDR_UNSPECIFIED

◆ IN6_IS_ADDR_V4MAPPED

◆ IP_ADD_MEMBERSHIP

◆ IP_DROP_MEMBERSHIP

◆ IP_LOCAL_PORT_RANGE

◆ IP_MTU

◆ IP_MULTICAST_IF

◆ IP_MULTICAST_TTL

◆ IP_PKTINFO

◆ IP_TOS

◆ IP_TTL

◆ IPV6_ADD_MEMBERSHIP

◆ IPV6_ADDR_PREFERENCES

◆ IPV6_DROP_MEMBERSHIP

◆ IPV6_JOIN_GROUP

◆ IPV6_LEAVE_GROUP

◆ IPV6_MTU

◆ IPV6_MULTICAST_HOPS

◆ IPV6_MULTICAST_IF

◆ IPV6_PREFER_SRC_CGA

◆ IPV6_PREFER_SRC_COA

◆ IPV6_PREFER_SRC_HOME

◆ IPV6_PREFER_SRC_NONCGA

◆ IPV6_PREFER_SRC_PUBLIC

◆ IPV6_PREFER_SRC_PUBTMP_DEFAULT

◆ IPV6_PREFER_SRC_TMP

◆ IPV6_RECVPKTINFO

◆ IPV6_TCLASS

◆ IPV6_UNICAST_HOPS

◆ IPV6_V6ONLY

◆ NI_DGRAM

◆ NI_MAXHOST

◆ NI_NAMEREQD

◆ NI_NOFQDN

◆ NI_NUMERICHOST

◆ NI_NUMERICSERV

◆ SCM_TXTIME

◆ SO_ACCEPTCONN

◆ SO_BINDTODEVICE

◆ SO_BROADCAST

◆ SO_DEBUG

◆ SO_DOMAIN

◆ SO_DONTROUTE