net: sockets: Add a way to register a socket family handler (89bf1578) · Commits · Wenxi XU / zephyr

include/linker/common-rom.ld

+10 −0

Original line number	Diff line number	Diff line
		@@ -67,6 +67,16 @@
		__net_l2_end = .;
		} GROUP_LINK_IN(ROMABLE_REGION)

		#if defined(CONFIG_NET_SOCKETS)
		SECTION_PROLOGUE(net_socket_register,,)
		{
		__net_socket_register_start = .;
		*(".net_socket_register.init")
		KEEP((SORT_BY_NAME(".net_socket_register.init")))
		__net_socket_register_end = .;
		} GROUP_LINK_IN(ROMABLE_REGION)
		#endif

		SECTION_DATA_PROLOGUE(_bt_services_area,,SUBALIGN(4))
		{
		_bt_services_start = .;

+24 −0

Original line number	Diff line number	Diff line
		@@ -719,6 +719,30 @@ static inline char inet_ntop(sa_family_t family, const void src, char *dst,
		/** sockopt: Don't support IPv4 access (ignored, for compatibility) */
		#define IPV6_V6ONLY 26

		/** @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 struct net_socket_register \
		(NET_SOCKET_GET_NAME(socket_name)) __used \
		__attribute__((__section__(".net_socket_register.init"))) = { \
		.family = _family, \
		.is_supported = _is_supported, \
		.handler = _handler, \
		}

		/** @endcond */

		#ifdef __cplusplus
		}
		#endif

+2 −1

Original line number	Diff line number	Diff line
		@@ -896,7 +896,8 @@ class SizeCalculator:
		# These get copied into RAM only on non-XIP
		ro_sections = ["text", "ctors", "init_array", "reset", "object_access",
		"rodata", "devconfig", "net_l2", "vector", "sw_isr_table",
		"_bt_settings_area", "_bt_services_area", "vectors"]
		"_bt_settings_area", "_bt_services_area", "vectors",
		"net_socket_register"]

		def __init__(self, filename, extra_sections):
		"""Constructor

+22 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,9 @@ LOG_MODULE_REGISTER(net_sock, CONFIG_NET_SOCKETS_LOG_LEVEL);

		#include "sockets_internal.h"

		extern struct net_socket_register __net_socket_register_start[];
		extern struct net_socket_register __net_socket_register_end[];

		#define SET_ERRNO(x) \
		{ int _err = x; if (_err < 0) { errno = -_err; return -1; } }

		@@ -129,6 +132,25 @@ int zsock_socket_internal(int family, int type, int proto)

		int z_impl_zsock_socket(int family, int type, int proto)
		{
		struct net_socket_register *sock_family;

		for (sock_family = __net_socket_register_start;
		sock_family != __net_socket_register_end;
		sock_family++) {
		if (sock_family->family != family &&
		sock_family->family != AF_UNSPEC) {
		continue;
		}

		NET_ASSERT(sock_family->is_supported);

		if (!sock_family->is_supported(family, type, proto)) {
		continue;
		}

		return sock_family->handler(family, type, proto);
		}

		#if defined(CONFIG_NET_SOCKETS_SOCKOPT_TLS)
		if (((proto >= IPPROTO_TLS_1_0) && (proto <= IPPROTO_TLS_1_2)) \|\|
		(proto >= IPPROTO_DTLS_1_0 && proto <= IPPROTO_DTLS_1_2)) {