net: Namespace network symbols to avoid conflicts with Posix/libc

Rename network symbols i.e., add net_, NET_ or ZSOCK_ prefixes
to those network symbols that can be found in Posix or libc.
This way we can avoid circular dependency issues.

Add also a compatibility header file that allows user to continue
use various network APIs without adding either net_, NET_ or ZSOCK_
prefixes.

Signed-off-by: Jukka Rissanen <[email protected]>

Author: jukkar

include/zephyr/net/net_compat.h

@@ -0,0 +1,315 @@
+/** @file
+ * @brief Network namespace compatibility mode header
+ *
+ * Allows to use relevant network symbols without the "net_", "NET_" or
+ * "ZSOCK_" prefixes.
+ */
+
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef ZEPHYR_INCLUDE_NET_NET_COMPAT_H_
+#define ZEPHYR_INCLUDE_NET_NET_COMPAT_H_
+
+/**
+ * @brief Network namespace compatibility mode symbols
+ * @defgroup net_compat Network namespace compatibility mode symbols
+ * @since 4.4
+ * @version 0.0.1
+ * @ingroup networking
+ * @{
+ */
+
+/* No need to generate documentation for the compatibility mode symbols */
+/** @cond INTERNAL_HIDDEN */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Prevent direct inclusion of this file. This is a private header
+ * meant to be included via <net/net_ip.h>.
+ */
+#if !defined(ZEPHYR_INCLUDE_NET_COMPAT_MODE_SYMBOLS)
+#error "This header file should not be included directly. " \
+	"Include <zephyr/net/net_ip.h> instead."
+#endif /* !defined(ZEPHYR_INCLUDE_NET_COMPAT_MODE_SYMBOLS) */
+
+#define PF_UNSPEC   NET_PF_UNSPEC
+#define PF_INET     NET_PF_INET
+#define PF_INET6    NET_PF_INET6
+#define PF_PACKET   NET_PF_PACKET
+#define PF_CAN      NET_PF_CAN
+#define PF_NET_MGMT NET_PF_NET_MGMT
+#define PF_LOCAL    NET_PF_LOCAL
+#define PF_UNIX     NET_PF_UNIX
+
+#define AF_UNSPEC      NET_PF_UNSPEC
+#define AF_INET        NET_PF_INET
+#define AF_INET6       NET_PF_INET6
+#define AF_PACKET      NET_PF_PACKET
+#define AF_CAN         NET_PF_CAN
+#define AF_NET_MGMT    NET_PF_NET_MGMT
+#define AF_LOCAL       NET_PF_LOCAL
+#define AF_UNIX        NET_PF_UNIX
+
+#define IPPROTO_IP        NET_IPPROTO_IP
+#define IPPROTO_ICMP      NET_IPPROTO_ICMP
+#define IPPROTO_IGMP      NET_IPPROTO_IGMP
+#define IPPROTO_ETH_P_ALL NET_IPPROTO_ETH_P_ALL
+#define IPPROTO_IPIP      NET_IPPROTO_IPIP
+#define IPPROTO_TCP       NET_IPPROTO_TCP
+#define IPPROTO_UDP       NET_IPPROTO_UDP
+#define IPPROTO_IPV6      NET_IPPROTO_IPV6
+#define IPPROTO_ICMPV6    NET_IPPROTO_ICMPV6
+#define IPPROTO_RAW       NET_IPPROTO_RAW
+#define IPPROTO_TLS_1_0   NET_IPPROTO_TLS_1_0
+#define IPPROTO_TLS_1_1   NET_IPPROTO_TLS_1_1
+#define IPPROTO_TLS_1_2   NET_IPPROTO_TLS_1_2
+#define IPPROTO_TLS_1_3   NET_IPPROTO_TLS_1_3
+#define IPPROTO_DTLS_1_0  NET_IPPROTO_DTLS_1_0
+#define IPPROTO_DTLS_1_2  NET_IPPROTO_DTLS_1_2
+
+#define SOCK_STREAM NET_SOCK_STREAM
+#define SOCK_DGRAM  NET_SOCK_DGRAM
+#define SOCK_RAW    NET_SOCK_RAW
+
+#define CAN_RAW NET_CAN_RAW
+#define SOL_CAN_RAW  (NET_SOL_CAN_BASE + NET_CAN_RAW)
+#define CAN_RAW_FILTER NET_CAN_RAW_FILTER
+
+#define ntohs(x)  net_ntohs(x)
+#define ntohl(x)  net_ntohl(x)
+#define ntohll(x) net_ntohll(x)
+#define htons(x)  net_htons(x)
+#define htonl(x)  net_htonl(x)
+#define htonll(x) net_htonll(x)
+
+#define in_addr  net_in_addr
+#define in6_addr net_in6_addr
+
+#define sockaddr         net_sockaddr
+#define sockaddr_in      net_sockaddr_in
+#define sockaddr_in6     net_sockaddr_in6
+#define sockaddr_ll      net_sockaddr_ll
+#define sockaddr_can     net_sockaddr_can
+#define sockaddr_un      net_sockaddr_un
+#define sockaddr_nm      net_sockaddr_nm
+#define sockaddr_ptr     net_sockaddr_ptr
+#define sockaddr_in_ptr  net_sockaddr_in_ptr
+#define sockaddr_in6_ptr net_sockaddr_in6_ptr
+#define sockaddr_ll_ptr  net_sockaddr_ll_ptr
+#define sockaddr_un_ptr  net_sockaddr_un_ptr
+#define sockaddr_can_ptr net_sockaddr_can_ptr
+#define sockaddr_storage net_sockaddr_storage
+
+#define sa_family_t   net_sa_family_t
+#define socklen_t     net_socklen_t
+
+#define iovec                     net_iovec
+#define msghdr                    net_msghdr
+#define cmsghdr                   net_cmsghdr
+#define ALIGN_H(x)                NET_ALIGN_H(x)
+#define ALIGN_D(x)                NET_ALIGN_D(x)
+#define CMSG_LEN(len)             NET_CMSG_LEN(len)
+#define CMSG_SPACE(len)           NET_CMSG_SPACE(len)
+#define CMSG_DATA(cmsg)           NET_CMSG_DATA(cmsg)
+#define CMSG_FIRSTHDR(msghdr)     NET_CMSG_FIRSTHDR(msghdr)
+#define CMSG_NXTHDR(msghdr, cmsg) NET_CMSG_NXTHDR(msghdr, cmsg)
+
+#define PACKET_HOST       NET_PACKET_HOST
+#define PACKET_BROADCAST  NET_PACKET_BROADCAST
+#define PACKET_MULTICAST  NET_PACKET_MULTICAST
+#define PACKET_OTHERHOST  NET_PACKET_OTHERHOST
+#define PACKET_OUTGOING   NET_PACKET_OUTGOING
+#define PACKET_LOOPBACK   NET_PACKET_LOOPBACK
+#define PACKET_FASTROUTE  NET_PACKET_FASTROUTE
+
+#define in6addr_any       net_in6addr_any
+#define in6addr_loopback  net_in6addr_loopback
+
+#define INADDR_ANY             NET_INADDR_ANY
+#define INADDR_BROADCAST       NET_INADDR_BROADCAST
+#define INADDR_ANY_INIT        NET_INADDR_ANY_INIT
+#define INADDR_LOOPBACK_INIT   NET_INADDR_LOOPBACK_INIT
+#define INET_ADDRSTRLEN        NET_INET_ADDRSTRLEN
+#define INET6_ADDRSTRLEN       NET_INET6_ADDRSTRLEN
+#define IN6ADDR_ANY_INIT       NET_IN6ADDR_ANY_INIT
+#define IN6ADDR_LOOPBACK_INIT  NET_IN6ADDR_LOOPBACK_INIT
+
+#define IFNAMSIZ NET_IFNAMSIZ
+
+#define in_pktinfo   net_in_pktinfo
+#define ip_mreqn     net_ip_mreqn
+#define ip_mreq      net_ip_mreq
+#define ipv6_mreq    net_ipv6_mreq
+#define in6_pktinfo  net_in6_pktinfo
+#define ifreq        net_ifreq
+
+#define SOL_TLS                           ZSOCK_SOL_TLS
+#define TLS_SEC_TAG_LIST                  ZSOCK_TLS_SEC_TAG_LIST
+#define TLS_HOSTNAME                      ZSOCK_TLS_HOSTNAME
+#define TLS_CIPHERSUITE_LIST              ZSOCK_TLS_CIPHERSUITE_LIST
+#define TLS_CIPHERSUITE_USED              ZSOCK_TLS_CIPHERSUITE_USED
+#define TLS_PEER_VERIFY                   ZSOCK_TLS_PEER_VERIFY
+#define TLS_DTLS_ROLE                     ZSOCK_TLS_DTLS_ROLE
+#define TLS_ALPN_LIST                     ZSOCK_TLS_ALPN_LIST
+#define TLS_DTLS_HANDSHAKE_TIMEOUT_MIN    ZSOCK_TLS_DTLS_HANDSHAKE_TIMEOUT_MIN
+#define TLS_DTLS_HANDSHAKE_TIMEOUT_MAX    ZSOCK_TLS_DTLS_HANDSHAKE_TIMEOUT_MAX
+#define TLS_CERT_NOCOPY                   ZSOCK_TLS_CERT_NOCOPY
+#define TLS_NATIVE                        ZSOCK_TLS_NATIVE
+#define TLS_SESSION_CACHE                 ZSOCK_TLS_SESSION_CACHE
+#define TLS_SESSION_CACHE_PURGE           ZSOCK_TLS_SESSION_CACHE_PURGE
+#define TLS_DTLS_CID                      ZSOCK_TLS_DTLS_CID
+#define TLS_DTLS_CID_STATUS               ZSOCK_TLS_DTLS_CID_STATUS
+#define TLS_DTLS_CID_VALUE                ZSOCK_TLS_DTLS_CID_VALUE
+#define TLS_DTLS_PEER_CID_VALUE           ZSOCK_TLS_DTLS_PEER_CID_VALUE
+#define TLS_DTLS_HANDSHAKE_ON_CONNECT     ZSOCK_TLS_DTLS_HANDSHAKE_ON_CONNECT
+#define TLS_CERT_VERIFY_RESULT            ZSOCK_TLS_CERT_VERIFY_RESULT
+#define TLS_CERT_VERIFY_CALLBACK          ZSOCK_TLS_CERT_VERIFY_CALLBACK
+#define TLS_PEER_VERIFY_NONE              ZSOCK_TLS_PEER_VERIFY_NONE
+#define TLS_PEER_VERIFY_OPTIONAL          ZSOCK_TLS_PEER_VERIFY_OPTIONAL
+#define TLS_PEER_VERIFY_REQUIRED          ZSOCK_TLS_PEER_VERIFY_REQUIRED
+#define TLS_DTLS_ROLE_CLIENT              ZSOCK_TLS_DTLS_ROLE_CLIENT
+#define TLS_DTLS_ROLE_SERVER              ZSOCK_TLS_DTLS_ROLE_SERVER
+#define TLS_CERT_NOCOPY_NONE              ZSOCK_TLS_CERT_NOCOPY_NONE
+#define TLS_CERT_NOCOPY_OPTIONAL          ZSOCK_TLS_CERT_NOCOPY_OPTIONAL
+#define TLS_SESSION_CACHE_DISABLED        ZSOCK_TLS_SESSION_CACHE_DISABLED
+#define TLS_SESSION_CACHE_ENABLED         ZSOCK_TLS_SESSION_CACHE_ENABLED
+#define TLS_DTLS_CID_DISABLED             ZSOCK_TLS_DTLS_CID_DISABLED
+#define TLS_DTLS_CID_SUPPORTED            ZSOCK_TLS_DTLS_CID_SUPPORTED
+#define TLS_DTLS_CID_ENABLED              ZSOCK_TLS_DTLS_CID_ENABLED
+#define TLS_DTLS_CID_STATUS_DISABLED      ZSOCK_TLS_DTLS_CID_STATUS_DISABLED
+#define TLS_DTLS_CID_STATUS_DOWNLINK      ZSOCK_TLS_DTLS_CID_STATUS_DOWNLINK
+#define TLS_DTLS_CID_STATUS_UPLINK        ZSOCK_TLS_DTLS_CID_STATUS_UPLINK
+#define TLS_DTLS_CID_STATUS_BIDIRECTIONAL ZSOCK_TLS_DTLS_CID_STATUS_BIDIRECTIONAL
+
+#define tls_cert_verify_cb zsock_tls_cert_verify_cb
+
+#define AI_PASSIVE      ZSOCK_AI_PASSIVE
+#define AI_CANONNAME    ZSOCK_AI_CANONNAME
+#define AI_NUMERICHOST  ZSOCK_AI_NUMERICHOST
+#define AI_V4MAPPED     ZSOCK_AI_V4MAPPED
+#define AI_ALL          ZSOCK_AI_ALL
+#define AI_ADDRCONFIG   ZSOCK_AI_ADDRCONFIG
+#define AI_NUMERICSERV  ZSOCK_AI_NUMERICSERV
+#define AI_EXTFLAGS     ZSOCK_AI_EXTFLAGS
+
+#define NI_NUMERICHOST  ZSOCK_NI_NUMERICHOST
+#define NI_NUMERICSERV  ZSOCK_NI_NUMERICSERV
+#define NI_NOFQDN       ZSOCK_NI_NOFQDN
+#define NI_NAMEREQD     ZSOCK_NI_NAMEREQD
+#define NI_DGRAM        ZSOCK_NI_DGRAM
+#define NI_MAXHOST      ZSOCK_NI_MAXHOST
+
+#define SOL_SOCKET                    ZSOCK_SOL_SOCKET
+#define SO_DEBUG                      ZSOCK_SO_DEBUG
+#define SO_REUSEADDR                  ZSOCK_SO_REUSEADDR
+#define SO_TYPE                       ZSOCK_SO_TYPE
+#define SO_ERROR                      ZSOCK_SO_ERROR
+#define SO_DONTROUTE                  ZSOCK_SO_DONTROUTE
+#define SO_BROADCAST                  ZSOCK_SO_BROADCAST
+#define SO_SNDBUF                     ZSOCK_SO_SNDBUF
+#define SO_RCVBUF                     ZSOCK_SO_RCVBUF
+#define SO_KEEPALIVE                  ZSOCK_SO_KEEPALIVE
+#define SO_OOBINLINE                  ZSOCK_SO_OOBINLINE
+#define SO_PRIORITY                   ZSOCK_SO_PRIORITY
+#define SO_LINGER                     ZSOCK_SO_LINGER
+#define SO_REUSEPORT                  ZSOCK_SO_REUSEPORT
+#define SO_RCVLOWAT                   ZSOCK_SO_RCVLOWAT
+#define SO_SNDLOWAT                   ZSOCK_SO_SNDLOWAT
+#define SO_RCVTIMEO                   ZSOCK_SO_RCVTIMEO
+#define SO_SNDTIMEO                   ZSOCK_SO_SNDTIMEO
+#define SO_BINDTODEVICE               ZSOCK_SO_BINDTODEVICE
+#define SO_ACCEPTCONN                 ZSOCK_SO_ACCEPTCONN
+#define SO_TIMESTAMPING               ZSOCK_SO_TIMESTAMPING
+#define SO_PROTOCOL                   ZSOCK_SO_PROTOCOL
+#define SO_DOMAIN                     ZSOCK_SO_DOMAIN
+#define SO_SOCKS5                     ZSOCK_SO_SOCKS5
+#define SO_TXTIME                     ZSOCK_SO_TXTIME
+#define SCM_TXTIME                    ZSOCK_SCM_TXTIME
+#define SOF_TIMESTAMPING_RX_HARDWARE  ZSOCK_SOF_TIMESTAMPING_RX_HARDWARE
+#define SOF_TIMESTAMPING_TX_HARDWARE  ZSOCK_SOF_TIMESTAMPING_TX_HARDWARE
+
+#define SHUT_RD   ZSOCK_SHUT_RD
+#define SHUT_WR   ZSOCK_SHUT_WR
+#define SHUT_RDWR ZSOCK_SHUT_RDWR
+
+#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 TCP_NODELAY    ZSOCK_TCP_NODELAY
+#define TCP_KEEPIDLE   ZSOCK_TCP_KEEPIDLE
+#define TCP_KEEPINTVL  ZSOCK_TCP_KEEPINTVL
+#define TCP_KEEPCNT    ZSOCK_TCP_KEEPCNT
+
+#define IP_TOS               ZSOCK_IP_TOS
+#define IP_TTL               ZSOCK_IP_TTL
+#define IP_PKTINFO           ZSOCK_IP_PKTINFO
+#define IP_RECVTTL           ZSOCK_IP_RECVTTL
+#define IP_MTU               ZSOCK_IP_MTU
+#define IP_MULTICAST_IF      ZSOCK_IP_MULTICAST_IF
+#define IP_MULTICAST_TTL     ZSOCK_IP_MULTICAST_TTL
+#define IP_MULTICAST_LOOP    ZSOCK_IP_MULTICAST_LOOP
+#define IP_ADD_MEMBERSHIP    ZSOCK_IP_ADD_MEMBERSHIP
+#define IP_DROP_MEMBERSHIP   ZSOCK_IP_DROP_MEMBERSHIP
+#define IP_LOCAL_PORT_RANGE  ZSOCK_IP_LOCAL_PORT_RANGE
+
+#define IPV6_UNICAST_HOPS               ZSOCK_IPV6_UNICAST_HOPS
+#define IPV6_MULTICAST_IF               ZSOCK_IPV6_MULTICAST_IF
+#define IPV6_MULTICAST_HOPS             ZSOCK_IPV6_MULTICAST_HOPS
+#define IPV6_MULTICAST_LOOP             ZSOCK_IPV6_MULTICAST_LOOP
+#define IPV6_ADD_MEMBERSHIP             ZSOCK_IPV6_ADD_MEMBERSHIP
+#define IPV6_DROP_MEMBERSHIP            ZSOCK_IPV6_DROP_MEMBERSHIP
+#define IPV6_JOIN_GROUP                 ZSOCK_IPV6_ADD_MEMBERSHIP
+#define IPV6_LEAVE_GROUP                ZSOCK_IPV6_DROP_MEMBERSHIP
+#define IPV6_MTU                        ZSOCK_IPV6_MTU
+#define IPV6_V6ONLY                     ZSOCK_IPV6_V6ONLY
+#define IPV6_RECVPKTINFO                ZSOCK_IPV6_RECVPKTINFO
+#define IPV6_PKTINFO                    ZSOCK_IPV6_PKTINFO
+#define IPV6_RECVHOPLIMIT               ZSOCK_IPV6_RECVHOPLIMIT
+#define IPV6_HOPLIMIT                   ZSOCK_IPV6_HOPLIMIT
+#define IPV6_ADDR_PREFERENCES           ZSOCK_IPV6_ADDR_PREFERENCES
+#define IPV6_PREFER_SRC_TMP             ZSOCK_IPV6_PREFER_SRC_TMP
+#define IPV6_PREFER_SRC_PUBLIC          ZSOCK_IPV6_PREFER_SRC_PUBLIC
+#define IPV6_PREFER_SRC_PUBTMP_DEFAULT  ZSOCK_IPV6_PREFER_SRC_PUBTMP_DEFAULT
+#define IPV6_PREFER_SRC_COA             ZSOCK_IPV6_PREFER_SRC_COA
+#define IPV6_PREFER_SRC_HOME            ZSOCK_IPV6_PREFER_SRC_HOME
+#define IPV6_PREFER_SRC_CGA             ZSOCK_IPV6_PREFER_SRC_CGA
+#define IPV6_PREFER_SRC_NONCGA          ZSOCK_IPV6_PREFER_SRC_NONCGA
+#define IPV6_TCLASS                     ZSOCK_IPV6_TCLASS
+
+#define SOMAXCONN ZSOCK_SOMAXCONN
+
+#define IN6_IS_ADDR_UNSPECIFIED(addr)   ZSOCK_IN6_IS_ADDR_UNSPECIFIED(addr)
+#define IN6_IS_ADDR_LOOPBACK(addr)      ZSOCK_IN6_IS_ADDR_LOOPBACK(addr)
+#define IN6_IS_ADDR_MULTICAST(addr)     ZSOCK_IN6_IS_ADDR_MULTICAST(addr)
+#define IN6_IS_ADDR_LINKLOCAL(addr)     ZSOCK_IN6_IS_ADDR_LINKLOCAL(addr)
+#define IN6_IS_ADDR_SITELOCAL(addr)     ZSOCK_IN6_IS_ADDR_SITELOCAL(addr)
+#define IN6_IS_ADDR_V4MAPPED(addr)      ZSOCK_IN6_IS_ADDR_V4MAPPED(addr)
+#define IN6_IS_ADDR_MC_GLOBAL(addr)     ZSOCK_IN6_IS_ADDR_MC_GLOBAL(addr)
+#define IN6_IS_ADDR_MC_NODELOCAL(addr)  ZSOCK_IN6_IS_ADDR_MC_NODELOCAL(addr)
+#define IN6_IS_ADDR_MC_LINKLOCAL(addr)  ZSOCK_IN6_IS_ADDR_MC_LINKLOCAL(addr)
+#define IN6_IS_ADDR_MC_SITELOCAL(addr)  ZSOCK_IN6_IS_ADDR_MC_SITELOCAL(addr)
+#define IN6_IS_ADDR_MC_ORGLOCAL(addr)   ZSOCK_IN6_IS_ADDR_MC_ORGLOCAL(addr)
+
+#if !defined(ARPHRD_ETHER)
+#define ARPHRD_ETHER NET_ARPHRD_ETHER
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/** @endcond */
+
+/**
+ * @}
+ */
+
+#endif /* ZEPHYR_INCLUDE_NET_NET_COMPAT_H_ */