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zephyr/include/net/socket.h
Paul Sokolovsky 958e826b69 net: socket: Workaround issue with recent GCC and fcntl macro 
If we have CONFIG_NET_SOCKETS_POSIX_NAMES enabled (which is now
default), and also have CONFIG_NEWLIB_LIBC enabled, latest versions
of GCC throw a strange error like:

error: conflicting types for 'zsock_fcntl'
  692 | #define fcntl zsock_fcntl

After enough consideration, it seems that when Newlib is used, its
fcntl.h header is used, which declares fcntl() with POSIX prototype:
"int fcntl(int fd, int cmd, ...)". It seems that recent GCC, when
seeing the #define like above, checks that its right-hand side
(zsock_fcntl(int, int, int) above) is compatible with an existing
LHS prototype. That doesn't make sense from the point of view of
the C preprocessor semantics, and yet that's what apparently happens.

Make GCC happy by defining an inline wrapper function with
signature compatible with POSIX fcntl prototype, and use it in
the define, instead of zsock_fcntl directly.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
2021-04-14 11:10:16 -05:00

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/**
* @file
* @brief BSD Sockets compatible API definitions
*
* An API for applications to use BSD Sockets like API.
*/
/*
* Copyright (c) 2017-2018 Linaro Limited
* Copyright (c) 2021 Nordic Semiconductor
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef ZEPHYR_INCLUDE_NET_SOCKET_H_
#define ZEPHYR_INCLUDE_NET_SOCKET_H_
/**
* @brief BSD Sockets compatible API
* @defgroup bsd_sockets BSD Sockets compatible API
* @ingroup networking
* @{
*/
#include <sys/types.h>
#include <zephyr/types.h>
#include <net/net_ip.h>
#include <net/dns_resolve.h>
#include <net/socket_select.h>
#include <stdlib.h>
#ifdef __cplusplus
extern "C" {
#endif
struct zsock_pollfd {
int fd;
short events;
short revents;
};
/* ZSOCK_POLL* values are compatible with Linux */
/** zsock_poll: Poll for readability */
#define ZSOCK_POLLIN 1
/** zsock_poll: Compatibility value, ignored */
#define ZSOCK_POLLPRI 2
/** zsock_poll: Poll for writability */
#define ZSOCK_POLLOUT 4
/** zsock_poll: Poll results in error condition (output value only) */
#define ZSOCK_POLLERR 8
/** zsock_poll: Poll detected closed connection (output value only) */
#define ZSOCK_POLLHUP 0x10
/** zsock_poll: Invalid socket (output value only) */
#define ZSOCK_POLLNVAL 0x20
/** zsock_recv: Read data without removing it from socket input queue */
#define ZSOCK_MSG_PEEK 0x02
/** zsock_recv: return the real length of the datagram, even when it was longer
* than the passed buffer
*/
#define ZSOCK_MSG_TRUNC 0x20
/** zsock_recv/zsock_send: Override operation to non-blocking */
#define ZSOCK_MSG_DONTWAIT 0x40
/** zsock_recv: block until the full amount of data can be returned */
#define ZSOCK_MSG_WAITALL 0x100
/* Well-known values, e.g. from Linux man 2 shutdown:
* "The constants SHUT_RD, SHUT_WR, SHUT_RDWR have the value 0, 1, 2,
* respectively". Some software uses numeric values.
*/
/** zsock_shutdown: Shut down for reading */
#define ZSOCK_SHUT_RD 0
/** zsock_shutdown: Shut down for writing */
#define ZSOCK_SHUT_WR 1
/** zsock_shutdown: Shut down for both reading and writing */
#define ZSOCK_SHUT_RDWR 2
/** Protocol level for TLS.
* Here, the same socket protocol level for TLS as in Linux was used.
*/
#define SOL_TLS 282
/**
* @defgroup secure_sockets_options Socket options for TLS
* @{
*/
/** Socket option to select TLS credentials to use. It accepts and returns an
* array of sec_tag_t that indicate which TLS credentials should be used with
* specific socket.
*/
#define TLS_SEC_TAG_LIST 1
/** Write-only socket option to set hostname. It accepts a string containing
* the hostname (may be NULL to disable hostname verification). By default,
* hostname check is enforced for TLS clients.
*/
#define TLS_HOSTNAME 2
/** Socket option to select ciphersuites to use. It accepts and returns an array
* of integers with IANA assigned ciphersuite identifiers.
* If not set, socket will allow all ciphersuites available in the system
* (mebdTLS default behavior).
*/
#define TLS_CIPHERSUITE_LIST 3
/** Read-only socket option to read a ciphersuite chosen during TLS handshake.
* It returns an integer containing an IANA assigned ciphersuite identifier
* of chosen ciphersuite.
*/
#define TLS_CIPHERSUITE_USED 4
/** Write-only socket option to set peer verification level for TLS connection.
* This option accepts an integer with a peer verification level, compatible
* with mbedTLS values:
* - 0 - none
* - 1 - optional
* - 2 - required
*
* If not set, socket will use mbedTLS defaults (none for servers, required
* for clients).
*/
#define TLS_PEER_VERIFY 5
/** Write-only socket option to set role for DTLS connection. This option
* is irrelevant for TLS connections, as for them role is selected based on
* connect()/listen() usage. By default, DTLS will assume client role.
* This option accepts an integer with a TLS role, compatible with
* mbedTLS values:
* - 0 - client
* - 1 - server
*/
#define TLS_DTLS_ROLE 6
/** Socket option for setting the supported Application Layer Protocols.
* It accepts and returns a const char array of NULL terminated strings
* representing the supported application layer protocols listed during
* the TLS handshake.
*/
#define TLS_ALPN_LIST 7
/** Socket option to set DTLS handshake timeout. The timeout starts at min,
* and upon retransmission the timeout is doubled util max is reached.
* Min and max arguments are separate options. The time unit is ms.
*/
#define TLS_DTLS_HANDSHAKE_TIMEOUT_MIN 8
#define TLS_DTLS_HANDSHAKE_TIMEOUT_MAX 9
/** @} */
/* Valid values for TLS_PEER_VERIFY option */
#define TLS_PEER_VERIFY_NONE 0 /**< Peer verification disabled. */
#define TLS_PEER_VERIFY_OPTIONAL 1 /**< Peer verification optional. */
#define TLS_PEER_VERIFY_REQUIRED 2 /**< Peer verification required. */
/* Valid values for TLS_DTLS_ROLE option */
#define TLS_DTLS_ROLE_CLIENT 0 /**< Client role in a DTLS session. */
#define TLS_DTLS_ROLE_SERVER 1 /**< Server role in a DTLS session. */
struct zsock_addrinfo {
struct zsock_addrinfo *ai_next;
int ai_flags;
int ai_family;
int ai_socktype;
int ai_protocol;
socklen_t ai_addrlen;
struct sockaddr *ai_addr;
char *ai_canonname;
struct sockaddr _ai_addr;
char _ai_canonname[DNS_MAX_NAME_SIZE + 1];
};
/**
* @brief 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.
*
* @param sock file descriptor
* @return pointer to associated network socket object, or NULL if the
* file descriptor wasn't valid or the caller had no access permission
*/
__syscall void *zsock_get_context_object(int sock);
/**
* @brief Create a network socket
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*
* If CONFIG_USERSPACE is enabled, the caller will be granted access to the
* context object associated with the returned file descriptor.
* @see zsock_get_context_object()
*
*/
__syscall int zsock_socket(int family, int type, int proto);
/**
* @brief Create an unnamed pair of connected sockets
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_socketpair(int family, int type, int proto, int *sv);
/**
* @brief Close a network socket
*
* @details
* @rst
* Close a network socket.
* This function is also exposed as ``close()``
* if :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined (in which case it
* may conflict with generic POSIX ``close()`` function).
* @endrst
*/
__syscall int zsock_close(int sock);
/**
* @brief Shutdown socket send/receive operations
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_shutdown(int sock, int how);
/**
* @brief Bind a socket to a local network address
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_bind(int sock, const struct sockaddr *addr,
socklen_t addrlen);
/**
* @brief Connect a socket to a peer network address
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_connect(int sock, const struct sockaddr *addr,
socklen_t addrlen);
/**
* @brief Set up a STREAM socket to accept peer connections
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_listen(int sock, int backlog);
/**
* @brief Accept a connection on listening socket
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_accept(int sock, struct sockaddr *addr, socklen_t *addrlen);
/**
* @brief Send data to an arbitrary network address
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall ssize_t zsock_sendto(int sock, const void *buf, size_t len,
int flags, const struct sockaddr *dest_addr,
socklen_t addrlen);
/**
* @brief Send data to a connected peer
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
static inline ssize_t zsock_send(int sock, const void *buf, size_t len,
int flags)
{
return zsock_sendto(sock, buf, len, flags, NULL, 0);
}
/**
* @brief Send data to an arbitrary network address
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall ssize_t zsock_sendmsg(int sock, const struct msghdr *msg,
int flags);
/**
* @brief Receive data from an arbitrary network address
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall ssize_t zsock_recvfrom(int sock, void *buf, size_t max_len,
int flags, struct sockaddr *src_addr,
socklen_t *addrlen);
/**
* @brief Receive data from a connected peer
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
static inline ssize_t zsock_recv(int sock, void *buf, size_t max_len,
int flags)
{
return zsock_recvfrom(sock, buf, max_len, flags, NULL, NULL);
}
/**
* @brief Control blocking/non-blocking mode of a socket
*
* @details
* @rst
* This functions allow to (only) configure a socket for blocking or
* non-blocking operation (O_NONBLOCK).
* This function is also exposed as ``fcntl()``
* if :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined (in which case
* it may conflict with generic POSIX ``fcntl()`` function).
* @endrst
*/
__syscall int zsock_fcntl(int sock, int cmd, int flags);
/**
* @brief Efficiently poll multiple sockets for events
*
* @details
* @rst
* See `POSIX.1-2017 article
* <http://pubs.opengroup.org/onlinepubs/9699919799/functions/poll.html>`__
* for normative description. (In Zephyr this function works only with
* sockets, not arbitrary file descriptors.)
* This function is also exposed as ``poll()``
* if :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined (in which case
* it may conflict with generic POSIX ``poll()`` function).
* @endrst
*/
__syscall int zsock_poll(struct zsock_pollfd *fds, int nfds, int timeout);
/**
* @brief Get various socket options
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_getsockopt(int sock, int level, int optname,
void *optval, socklen_t *optlen);
/**
* @brief Set various socket options
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_setsockopt(int sock, int level, int optname,
const void *optval, socklen_t optlen);
/**
* @brief Get socket name
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_getsockname(int sock, struct sockaddr *addr,
socklen_t *addrlen);
/**
* @brief Get local host name
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_gethostname(char *buf, size_t len);
/**
* @brief Convert network address from internal to numeric ASCII form
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
static inline char *zsock_inet_ntop(sa_family_t family, const void *src,
char *dst, size_t size)
{
return net_addr_ntop(family, src, dst, size);
}
/**
* @brief Convert network address from numeric ASCII form to internal representation
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
__syscall int zsock_inet_pton(sa_family_t family, const char *src, void *dst);
/** @cond INTERNAL_HIDDEN */
__syscall int z_zsock_getaddrinfo_internal(const char *host,
const char *service,
const struct zsock_addrinfo *hints,
struct zsock_addrinfo *res);
/** @endcond */
/* Flags for getaddrinfo() hints. */
/** Address for bind() (vs for connect()) */
#define AI_PASSIVE 0x1
/** Fill in ai_canonname */
#define AI_CANONNAME 0x2
/** Assume host address is in numeric notation, don't DNS lookup */
#define AI_NUMERICHOST 0x4
/** May return IPv4 mapped address for IPv6 */
#define AI_V4MAPPED 0x8
/** May return both native IPv6 and mapped IPv4 address for IPv6 */
#define AI_ALL 0x10
/** IPv4/IPv6 support depends on local system config */
#define AI_ADDRCONFIG 0x20
/** Assume service (port) is numeric */
#define AI_NUMERICSERV 0x400
/**
* @brief Resolve a domain name to one or more network addresses
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
int zsock_getaddrinfo(const char *host, const char *service,
const struct zsock_addrinfo *hints,
struct zsock_addrinfo **res);
/**
* @brief Free results returned by zsock_getaddrinfo()
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
void zsock_freeaddrinfo(struct zsock_addrinfo *ai);
/**
* @brief Convert zsock_getaddrinfo() error code to textual message
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
const char *zsock_gai_strerror(int errcode);
/** zsock_getnameinfo(): Resolve to numeric address. */
#define NI_NUMERICHOST 1
/** zsock_getnameinfo(): Resolve to numeric port number. */
#define NI_NUMERICSERV 2
/** zsock_getnameinfo(): Return only hostname instead of FQDN */
#define NI_NOFQDN 4
/** zsock_getnameinfo(): Dummy option for compatibility */
#define NI_NAMEREQD 8
/** zsock_getnameinfo(): Dummy option for compatibility */
#define NI_DGRAM 16
/* POSIX extensions */
/** zsock_getnameinfo(): Max supported hostname length */
#ifndef NI_MAXHOST
#define NI_MAXHOST 64
#endif
/**
* @brief Resolve a network address to a domain name or ASCII address
*
* @details
* @rst
* 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 :option:`CONFIG_NET_SOCKETS_POSIX_NAMES` is defined.
* @endrst
*/
int zsock_getnameinfo(const struct sockaddr *addr, socklen_t addrlen,
char *host, socklen_t hostlen,
char *serv, socklen_t servlen, int flags);
#if defined(CONFIG_NET_SOCKETS_POSIX_NAMES)
#define pollfd zsock_pollfd
static inline int socket(int family, int type, int proto)
{
return zsock_socket(family, type, proto);
}
static inline int socketpair(int family, int type, int proto, int sv[2])
{
return zsock_socketpair(family, type, proto, sv);
}
static inline int close(int sock)
{
return zsock_close(sock);
}
static inline int shutdown(int sock, int how)
{
return zsock_shutdown(sock, how);
}
static inline int bind(int sock, const struct sockaddr *addr, socklen_t addrlen)
{
return zsock_bind(sock, addr, addrlen);
}
static inline int connect(int sock, const struct sockaddr *addr,
socklen_t addrlen)
{
return zsock_connect(sock, addr, addrlen);
}
static inline int listen(int sock, int backlog)
{
return zsock_listen(sock, backlog);
}
static inline int accept(int sock, struct sockaddr *addr, socklen_t *addrlen)
{
return zsock_accept(sock, addr, addrlen);
}
static inline ssize_t send(int sock, const void *buf, size_t len, int flags)
{
return zsock_send(sock, buf, len, flags);
}
static inline ssize_t recv(int sock, void *buf, size_t max_len, int flags)
{
return zsock_recv(sock, buf, max_len, flags);
}
/*
* Need this wrapper because newer GCC versions got too smart and "typecheck"
* even macros, so '#define fcntl zsock_fcntl' leads to error.
*/
static inline int zsock_fcntl_wrapper(int sock, int cmd, ...)
{
va_list args;
int flags;
va_start(args, cmd);
flags = va_arg(args, int);
va_end(args);
return zsock_fcntl(sock, cmd, flags);
}
#define fcntl zsock_fcntl_wrapper
static inline ssize_t sendto(int sock, const void *buf, size_t len, int flags,
const struct sockaddr *dest_addr,
socklen_t addrlen)
{
return zsock_sendto(sock, buf, len, flags, dest_addr, addrlen);
}
static inline ssize_t sendmsg(int sock, const struct msghdr *message,
int flags)
{
return zsock_sendmsg(sock, message, flags);
}
static inline ssize_t recvfrom(int sock, void *buf, size_t max_len, int flags,
struct sockaddr *src_addr, socklen_t *addrlen)
{
return zsock_recvfrom(sock, buf, max_len, flags, src_addr, addrlen);
}
static inline int poll(struct zsock_pollfd *fds, int nfds, int timeout)
{
return zsock_poll(fds, nfds, timeout);
}
static inline int getsockopt(int sock, int level, int optname,
void *optval, socklen_t *optlen)
{
return zsock_getsockopt(sock, level, optname, optval, optlen);
}
static inline int setsockopt(int sock, int level, int optname,
const void *optval, socklen_t optlen)
{
return zsock_setsockopt(sock, level, optname, optval, optlen);
}
static inline int getsockname(int sock, struct sockaddr *addr,
socklen_t *addrlen)
{
return zsock_getsockname(sock, addr, addrlen);
}
static inline int getaddrinfo(const char *host, const char *service,
const struct zsock_addrinfo *hints,
struct zsock_addrinfo **res)
{
return zsock_getaddrinfo(host, service, hints, res);
}
static inline void freeaddrinfo(struct zsock_addrinfo *ai)
{
zsock_freeaddrinfo(ai);
}
static inline const char *gai_strerror(int errcode)
{
return zsock_gai_strerror(errcode);
}
static inline int getnameinfo(const struct sockaddr *addr, socklen_t addrlen,
char *host, socklen_t hostlen,
char *serv, socklen_t servlen, int flags)
{
return zsock_getnameinfo(addr, addrlen, host, hostlen,
serv, servlen, flags);
}
#define addrinfo zsock_addrinfo
static inline int gethostname(char *buf, size_t len)
{
return zsock_gethostname(buf, len);
}
static inline int inet_pton(sa_family_t family, const char *src, void *dst)
{
return zsock_inet_pton(family, src, dst);
}
static inline char *inet_ntop(sa_family_t family, const void *src, char *dst,
size_t size)
{
return zsock_inet_ntop(family, src, dst, size);
}
#define POLLIN ZSOCK_POLLIN
#define POLLOUT ZSOCK_POLLOUT
#define POLLERR ZSOCK_POLLERR
#define POLLHUP ZSOCK_POLLHUP
#define POLLNVAL ZSOCK_POLLNVAL
#define MSG_PEEK ZSOCK_MSG_PEEK
#define MSG_TRUNC ZSOCK_MSG_TRUNC
#define MSG_DONTWAIT ZSOCK_MSG_DONTWAIT
#define MSG_WAITALL ZSOCK_MSG_WAITALL
#define SHUT_RD ZSOCK_SHUT_RD
#define SHUT_WR ZSOCK_SHUT_WR
#define SHUT_RDWR ZSOCK_SHUT_RDWR
#define EAI_BADFLAGS DNS_EAI_BADFLAGS
#define EAI_NONAME DNS_EAI_NONAME
#define EAI_AGAIN DNS_EAI_AGAIN
#define EAI_FAIL DNS_EAI_FAIL
#define EAI_NODATA DNS_EAI_NODATA
#define EAI_MEMORY DNS_EAI_MEMORY
#define EAI_SYSTEM DNS_EAI_SYSTEM
#define EAI_SERVICE DNS_EAI_SERVICE
#define EAI_SOCKTYPE DNS_EAI_SOCKTYPE
#define EAI_FAMILY DNS_EAI_FAMILY
#endif /* defined(CONFIG_NET_SOCKETS_POSIX_NAMES) */
#define IFNAMSIZ Z_DEVICE_MAX_NAME_LEN
/** Interface description structure */
struct ifreq {
char ifr_name[IFNAMSIZ]; /* Interface name */
};
/** sockopt: Socket-level option */
#define SOL_SOCKET 1
/* Socket options for SOL_SOCKET level */
/** sockopt: Enable server address reuse (ignored, for compatibility) */
#define SO_REUSEADDR 2
/** sockopt: Type of the socket */
#define SO_TYPE 3
/** sockopt: Async error (ignored, for compatibility) */
#define SO_ERROR 4
/**
* sockopt: Receive timeout
* Applies to receive functions like recv(), but not to connect()
*/
#define SO_RCVTIMEO 20
/** sockopt: Send timeout */
#define SO_SNDTIMEO 21
/** sockopt: Bind a socket to an interface */
#define SO_BINDTODEVICE 25
/** sockopt: Timestamp TX packets */
#define SO_TIMESTAMPING 37
/** sockopt: Protocol used with the socket */
#define SO_PROTOCOL 38
/* Socket options for IPPROTO_TCP level */
/** sockopt: Disable TCP buffering (ignored, for compatibility) */
#define TCP_NODELAY 1
/* Socket options for IPPROTO_IPV6 level */
/** sockopt: Don't support IPv4 access (ignored, for compatibility) */
#define IPV6_V6ONLY 26
/** sockopt: Socket priority */
#define SO_PRIORITY 12
/** sockopt: Socket TX time (when the data should be sent) */
#define SO_TXTIME 61
#define SCM_TXTIME SO_TXTIME
/* Socket options for SOCKS5 proxy */
/** sockopt: Enable SOCKS5 for Socket */
#define SO_SOCKS5 60
/** @cond INTERNAL_HIDDEN */
/**
* @brief Registration information for a given BSD socket family.
*/
struct net_socket_register {
int family;
bool (*is_supported)(int family, int type, int proto);
int (*handler)(int family, int type, int proto);
};
#define NET_SOCKET_GET_NAME(socket_name) \
(__net_socket_register_##socket_name)
#define NET_SOCKET_REGISTER(socket_name, _family, _is_supported, _handler) \
static const Z_STRUCT_SECTION_ITERABLE(net_socket_register, \
NET_SOCKET_GET_NAME(socket_name)) = { \
.family = _family, \
.is_supported = _is_supported, \
.handler = _handler, \
}
/** @endcond */
#ifdef __cplusplus
}
#endif
#include <syscalls/socket.h>
/**
* @}
*/
#endif /* ZEPHYR_INCLUDE_NET_SOCKET_H_ */
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