[net][sal] Add SAL (socket abstraction layer) framework

13 files changed, 840 insertions, 0 deletions

diff --git a/components/net/sal_socket/include/dfs_net/dfs_net.h b/components/net/sal_socket/include/dfs_net/dfs_net.h
new file mode 100644
index 0000000000..2a21fe3858
--- /dev/null
+++ b/components/net/sal_socket/include/dfs_net/dfs_net.h
@@ -0,0 +1,43 @@
+/*
+ * File      : dfs_net.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015-2016, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ * 2016-05-05     Bernard      rename dfs_lwip to dfs_net.
+ */
+
+#ifndef DFS_NET_H__
+#define DFS_NET_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <dfs_file.h>
+
+const struct dfs_file_ops* dfs_net_get_fops(void);
+int dfs_net_getsocket(int fd);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+
diff --git a/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h b/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h
new file mode 100644
index 0000000000..c2e2d54d3a
--- /dev/null
+++ b/components/net/sal_socket/include/dfs_net/sys_select/sys/select.h
@@ -0,0 +1,30 @@
+/*
+ * File      : select.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-05-02     Bernard      First version
+ */
+
+#ifndef SELECT_H__
+#define SELECT_H__
+
+#include <dfs_select.h>
+
+#endif
diff --git a/components/net/sal_socket/include/sal.h b/components/net/sal_socket/include/sal.h
new file mode 100644
index 0000000000..8a9dd61b67
--- /dev/null
+++ b/components/net/sal_socket/include/sal.h
@@ -0,0 +1,101 @@
+/*
+ * File      : sal.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-17     ChenYong     First version
+ */
+
+#ifndef SAL_H__
+#define SAL_H__
+
+#include <dfs_file.h>
+#include <rtdevice.h>
+
+#if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
+typedef uint32_t socklen_t;
+#endif
+
+/* sal socket magic word */
+#define SAL_SOCKET_MAGIC               0x5A10
+
+/* The maximum number of sockets structure */
+#define SAL_SOCKETS_NUM                DFS_FD_MAX
+
+/* The maximum number of protocol families */
+#ifndef SAL_PROTO_FAMILIES_NUM
+#define SAL_PROTO_FAMILIES_NUM         4
+#endif
+
+/* sal socket offset */
+#ifndef SAL_SOCKET_OFFSET
+#define SAL_SOCKET_OFFSET              0
+#endif
+
+struct proto_ops
+{
+    int (*socket)     (int domain, int type, int protocol);
+    int (*closesocket)(int s);
+    int (*bind)       (int s, const struct sockaddr *name, socklen_t namelen);
+    int (*listen)     (int s, int backlog);
+    int (*connect)    (int s, const struct sockaddr *name, socklen_t namelen);
+    int (*accept)     (int s, struct sockaddr *addr, socklen_t *addrlen);
+    int (*sendto)     (int s, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen);
+    int (*recvfrom)   (int s, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen);
+    int (*getsockopt) (int s, int level, int optname, void *optval, socklen_t *optlen);
+    int (*setsockopt) (int s, int level, int optname, const void *optval, socklen_t optlen);
+    int (*shutdown)   (int s, int how);
+    int (*getpeername)(int s, struct sockaddr *name, socklen_t *namelen);
+    int (*getsockname)(int s, struct sockaddr *name, socklen_t *namelen);
+    int (*ioctlsocket)(int s, long cmd, void *arg);
+    int (*poll)       (struct dfs_fd *file, struct rt_pollreq *req);
+};
+
+struct sal_socket
+{
+    uint32_t magic;                    /* sal socket magic word */
+
+    int socket;                        /* sal socket descriptor */
+    int domain;
+    int type;
+    int protocol;
+
+    const struct proto_ops  *ops;      /* socket options */
+    void *user_data;                   /* specific sal socket data */
+};
+
+struct proto_family
+{
+    int family;                        /* primary protocol families type*/
+    int sec_family;                    /* secondary protocol families type*/
+    int             (*create)(struct sal_socket *sal_socket, int type, int protocol);   /* register socket options */
+
+    struct hostent* (*gethostbyname)  (const char *name);
+    int             (*gethostbyname_r)(const char *name, struct hostent *ret, char *buf, size_t buflen, struct hostent **result, int *h_errnop);
+    void            (*freeaddrinfo)   (struct addrinfo *ai);
+    int             (*getaddrinfo)    (const char *nodename, const char *servname, const struct addrinfo *hints, struct addrinfo **res);
+};
+
+/* SAL socket initialization */
+int sal_init(void);
+
+int sal_proto_family_register(const struct proto_family *pf);
+struct sal_socket *sal_get_socket(int sock);
+
+#endif /* SAL_H__ */
diff --git a/components/net/sal_socket/include/sal_ipaddr.h b/components/net/sal_socket/include/sal_ipaddr.h
new file mode 100644
index 0000000000..814d1d16e9
--- /dev/null
+++ b/components/net/sal_socket/include/sal_ipaddr.h
@@ -0,0 +1,138 @@
+/*
+ * File      : sal_ipaddr.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-18     ChenYong     First version
+ */
+#ifndef SAL_IPADDR_H__
+#define SAL_IPADDR_H__
+
+#include "sal_type.h"
+
+/** IPv4 only: set the IP address given as an u32_t */
+#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
+/** IPv4 only: get the IP address as an u32_t */
+#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
+
+#define IP4ADDR_STRLEN_MAX  16
+
+/* These macros should be calculated by the preprocessor and are used
+   with compile-time constants only (so that there is no little-endian
+   overhead at runtime). */
+#define PP_HTONS(x) ((((x) & 0x00ffUL) << 8) | (((x) & 0xff00UL) >> 8))
+#define PP_NTOHS(x) PP_HTONS(x)
+#define PP_HTONL(x) ((((x) & 0x000000ffUL) << 24) | \
+                     (((x) & 0x0000ff00UL) <<  8) | \
+                     (((x) & 0x00ff0000UL) >>  8) | \
+                     (((x) & 0xff000000UL) >> 24))
+#define PP_NTOHL(x) PP_HTONL(x)
+
+#define htons(x) (u16_t)PP_HTONS(x)
+#define ntohs(x) (u16_t)PP_NTOHS(x)
+#define htonl(x) (u32_t)PP_HTONL(x)
+#define ntohl(x) (u32_t)PP_NTOHL(x)
+
+/* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED
+   to prevent this code from redefining it. */
+#if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED)
+typedef u32_t in_addr_t;
+#endif
+
+struct in_addr
+{
+    in_addr_t s_addr;
+};
+
+struct in6_addr
+{
+    union
+    {
+        u32_t u32_addr[4];
+        u8_t u8_addr[16];
+    } un;
+#define s6_addr  un.u8_addr
+};
+
+enum sal_ip_addr_type
+{
+    /** IPv4 */
+    IPADDR_TYPE_V4 = 0U,
+    /** IPv6 */
+    IPADDR_TYPE_V6 = 6U,
+    /** IPv4+IPv6 ("dual-stack") */
+    IPADDR_TYPE_ANY = 46U
+};
+
+typedef struct ip4_addr
+{
+    u32_t addr;
+} ip4_addr_t;
+
+typedef struct ip6_addr
+{
+    u32_t addr[4];
+} ip6_addr_t;
+
+typedef struct _ip_addr
+{
+    union
+    {
+        ip6_addr_t ip6;
+        ip4_addr_t ip4;
+    } u_addr;
+    /** @ref sal_ip_addr_type */
+    u8_t type;
+} ip_addr_t;
+
+/** 255.255.255.255 */
+#define IPADDR_NONE         ((u32_t)0xffffffffUL)
+/** 127.0.0.1 */
+#define IPADDR_LOOPBACK     ((u32_t)0x7f000001UL)
+/** 0.0.0.0 */
+#define IPADDR_ANY          ((u32_t)0x00000000UL)
+/** 255.255.255.255 */
+#define IPADDR_BROADCAST    ((u32_t)0xffffffffUL)
+
+/** 255.255.255.255 */
+#define INADDR_NONE         IPADDR_NONE
+/** 127.0.0.1 */
+#define INADDR_LOOPBACK     IPADDR_LOOPBACK
+/** 0.0.0.0 */
+#define INADDR_ANY          IPADDR_ANY
+/** 255.255.255.255 */
+#define INADDR_BROADCAST    IPADDR_BROADCAST
+
+#define IPADDR_BROADCAST_STRING "255.255.255.255"
+
+in_addr_t sal_ipaddr_addr(const char *cp);
+int sal_ip4addr_aton(const char *cp, ip4_addr_t *addr);
+char *sal_ip4addr_ntoa(const ip4_addr_t *addr);
+char *sal_ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen);
+
+#define inet_addr(cp) sal_ipaddr_addr(cp)
+#define inet_aton(cp,addr) sal_ip4addr_aton(cp,(ip4_addr_t*)addr)
+#define inet_ntoa(addr) sal_ip4addr_ntoa((const ip4_addr_t*)&(addr))
+#define inet_ntoa_r(addr, buf, buflen)  sal_ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen)
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SAL_IPADDR_H__ */
diff --git a/components/net/sal_socket/include/sal_netdb.h b/components/net/sal_socket/include/sal_netdb.h
new file mode 100644
index 0000000000..12f7abe6b7
--- /dev/null
+++ b/components/net/sal_socket/include/sal_netdb.h
@@ -0,0 +1,91 @@
+/*
+ * File      : sal_netdb.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-24     ChenYong     First version
+ */
+#ifndef SAL_NETDB_H__
+#define SAL_NETDB_H__
+
+#include <sal_socket.h>
+
+#define EAI_NONAME      200
+#define EAI_SERVICE     201
+#define EAI_FAIL        202
+#define EAI_MEMORY      203
+#define EAI_FAMILY      204
+
+#define HOST_NOT_FOUND  210
+#define NO_DATA         211
+#define NO_RECOVERY     212
+#define TRY_AGAIN       213
+
+#define AI_PASSIVE      0x01
+#define AI_CANONNAME    0x02
+#define AI_NUMERICHOST  0x04
+#define AI_NUMERICSERV  0x08
+#define AI_V4MAPPED     0x10
+#define AI_ALL          0x20
+#define AI_ADDRCONFIG   0x40
+
+/* input flags for structure addrinfo */
+#define AI_PASSIVE      0x01
+#define AI_CANONNAME    0x02
+#define AI_NUMERICHOST  0x04
+#define AI_NUMERICSERV  0x08
+#define AI_V4MAPPED     0x10
+#define AI_ALL          0x20
+#define AI_ADDRCONFIG   0x40
+
+#define DNS_MAX_NAME_LENGTH 256
+
+struct hostent {
+    char  *h_name;      /* Official name of the host. */
+    char **h_aliases;   /* A pointer to an array of pointers to alternative host names,
+                           terminated by a null pointer. */
+    int    h_addrtype;  /* Address type. */
+    int    h_length;    /* The length, in bytes, of the address. */
+    char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
+                           network byte order) for the host, terminated by a null pointer. */
+#define h_addr h_addr_list[0] /* for backward compatibility */
+};
+
+struct addrinfo {
+    int               ai_flags;      /* Input flags. */
+    int               ai_family;     /* Address family of socket. */
+    int               ai_socktype;   /* Socket type. */
+    int               ai_protocol;   /* Protocol of socket. */
+    socklen_t         ai_addrlen;    /* Length of socket address. */
+    struct sockaddr  *ai_addr;       /* Socket address of socket. */
+    char             *ai_canonname;  /* Canonical name of service location. */
+    struct addrinfo  *ai_next;       /* Pointer to next in list. */
+};
+
+struct hostent *sal_gethostbyname(const char *name);
+
+int sal_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
+                size_t buflen, struct hostent **result, int *h_errnop);
+void sal_freeaddrinfo(struct addrinfo *ai);
+int sal_getaddrinfo(const char *nodename,
+       const char *servname,
+       const struct addrinfo *hints,
+       struct addrinfo **res);
+
+#endif /* SAL_NETDB_H__ */
diff --git a/components/net/sal_socket/include/sal_socket.h b/components/net/sal_socket/include/sal_socket.h
new file mode 100644
index 0000000000..0261561613
--- /dev/null
+++ b/components/net/sal_socket/include/sal_socket.h
@@ -0,0 +1,166 @@
+/*
+ * File      : sal_socket.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-24     ChenYong     First version
+ */
+
+#ifndef SAL_SOCKET_H__
+#define SAL_SOCKET_H__
+
+#include "sal_ipaddr.h"
+
+#if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED)
+typedef uint32_t socklen_t;
+#endif
+
+#if !defined(sa_family_t) && !defined(SA_FAMILY_T_DEFINED)
+typedef uint8_t sa_family_t;
+#endif
+
+/* If your port already typedef's in_port_t, define IN_PORT_T_DEFINED
+   to prevent this code from redefining it. */
+#if !defined(in_port_t) && !defined(IN_PORT_T_DEFINED)
+typedef uint16_t in_port_t;
+#endif
+
+/* Socket protocol types (TCP/UDP/RAW) */
+#define SOCK_STREAM     1
+#define SOCK_DGRAM      2
+#define SOCK_RAW        3
+
+#define SOCK_MAX (SOCK_RAW + 1)
+
+/*
+ * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c)
+ */
+#define SO_REUSEADDR   0x0004 /* Allow local address reuse */
+#define SO_KEEPALIVE   0x0008 /* keep connections alive */
+#define SO_BROADCAST   0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
+
+/*
+ * Additional options, not kept in so_options.
+ */
+#define SO_DEBUG       0x0001 /* Unimplemented: turn on debugging info recording */
+#define SO_ACCEPTCONN  0x0002 /* socket has had listen() */
+#define SO_DONTROUTE   0x0010 /* Unimplemented: just use interface addresses */
+#define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */
+#define SO_LINGER      0x0080 /* linger on close if data present */
+#define SO_DONTLINGER  ((int)(~SO_LINGER))
+#define SO_OOBINLINE   0x0100 /* Unimplemented: leave received OOB data in line */
+#define SO_REUSEPORT   0x0200 /* Unimplemented: allow local address & port reuse */
+#define SO_SNDBUF      0x1001 /* Unimplemented: send buffer size */
+#define SO_RCVBUF      0x1002 /* receive buffer size */
+#define SO_SNDLOWAT    0x1003 /* Unimplemented: send low-water mark */
+#define SO_RCVLOWAT    0x1004 /* Unimplemented: receive low-water mark */
+#define SO_SNDTIMEO    0x1005 /* send timeout */
+#define SO_RCVTIMEO    0x1006 /* receive timeout */
+#define SO_ERROR       0x1007 /* get error status and clear */
+#define SO_TYPE        0x1008 /* get socket type */
+#define SO_CONTIMEO    0x1009 /* Unimplemented: connect timeout */
+#define SO_NO_CHECK    0x100a /* don't create UDP checksum */
+
+/*
+ * Level number for (get/set)sockopt() to apply to socket itself.
+ */
+#define  SOL_SOCKET  0xfff    /* options for socket level */
+
+#define AF_UNSPEC       0
+#define AF_INET         2
+#define AF_INET6        10
+#define AF_CAN          29  /* Controller Area Network      */
+#define AF_AT           45  /* AT socket */
+#define PF_INET         AF_INET
+#define PF_INET6        AF_INET6
+#define PF_UNSPEC       AF_UNSPEC
+#define PF_CAN          AF_CAN
+#define PF_AT           AF_AT
+
+#define AF_MAX          (AF_AT + 1)  /* For now.. */
+
+#define IPPROTO_IP      0
+#define IPPROTO_ICMP    1
+#define IPPROTO_TCP     6
+#define IPPROTO_UDP     17
+#define IPPROTO_IPV6    41
+#define IPPROTO_ICMPV6  58
+#define IPPROTO_UDPLITE 136
+#define IPPROTO_RAW     255
+
+/* Flags we can use with send and recv. */
+#define MSG_PEEK       0x01    /* Peeks at an incoming message */
+#define MSG_WAITALL    0x02    /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */
+#define MSG_OOB        0x04    /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */
+#define MSG_DONTWAIT   0x08    /* Nonblocking i/o for this operation only */
+#define MSG_MORE       0x10    /* Sender will send more */
+
+/*
+ * Options for level IPPROTO_TCP
+ */
+#define TCP_NODELAY    0x01    /* don't delay send to coalesce packets */
+#define TCP_KEEPALIVE  0x02    /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */
+#define TCP_KEEPIDLE   0x03    /* set pcb->keep_idle  - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
+#define TCP_KEEPINTVL  0x04    /* set pcb->keep_intvl - Use seconds for get/setsockopt */
+#define TCP_KEEPCNT    0x05    /* set pcb->keep_cnt   - Use number of probes sent for get/setsockopt */
+
+struct sockaddr {
+  uint8_t     sa_len;
+  sa_family_t sa_family;
+  char        sa_data[14];
+};
+
+/* members are in network byte order */
+struct sockaddr_in {
+  uint8_t         sin_len;
+  sa_family_t     sin_family;
+  in_port_t       sin_port;
+  struct in_addr  sin_addr;
+#define SIN_ZERO_LEN 8
+  char            sin_zero[SIN_ZERO_LEN];
+};
+
+struct sockaddr_storage {
+  uint8_t     s2_len;
+  sa_family_t ss_family;
+  char        s2_data1[2];
+  uint32_t    s2_data2[3];
+#if SAL_IPV6
+  u32_t       s2_data3[3];
+#endif /* SAL_IPV6 */
+};
+
+int sal_accept(int socket, struct sockaddr *addr, socklen_t *addrlen);
+int sal_bind(int socket, const struct sockaddr *name, socklen_t namelen);
+int sal_shutdown(int socket, int how);
+int sal_getpeername (int socket, struct sockaddr *name, socklen_t *namelen);
+int sal_getsockname (int socket, struct sockaddr *name, socklen_t *namelen);
+int sal_getsockopt (int socket, int level, int optname, void *optval, socklen_t *optlen);
+int sal_setsockopt (int socket, int level, int optname, const void *optval, socklen_t optlen);
+int sal_connect(int socket, const struct sockaddr *name, socklen_t namelen);
+int sal_listen(int socket, int backlog);
+int sal_recvfrom(int socket, void *mem, size_t len, int flags,
+      struct sockaddr *from, socklen_t *fromlen);
+int sal_sendto(int socket, const void *dataptr, size_t size, int flags,
+    const struct sockaddr *to, socklen_t tolen);
+int sal_socket(int domain, int type, int protocol);
+int sal_closesocket(int socket);
+int sal_ioctlsocket(int socket, long cmd, void *arg);
+
+#endif /* SAL_SOCKET_H__ */
diff --git a/components/net/sal_socket/include/sal_type.h b/components/net/sal_socket/include/sal_type.h
new file mode 100644
index 0000000000..0446d5f4e1
--- /dev/null
+++ b/components/net/sal_socket/include/sal_type.h
@@ -0,0 +1,40 @@
+/*
+ * File      : sal_type.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2018-05-17     ChenYong     First version
+ */
+
+#ifndef SAL_TYPE_H__
+#define SAL_TYPE_H__
+
+#include <stdlib.h>
+#include <stdint.h>
+
+typedef int8_t    err_t;
+typedef uint8_t   u8_t;
+typedef int8_t    s8_t;
+typedef uint16_t  u16_t;
+typedef int16_t   s16_t;
+typedef uint32_t  u32_t;
+typedef int32_t   s32_t;
+typedef uintptr_t mem_ptr_t;
+
+#endif /* SAL_TYPE_H__ */
diff --git a/components/net/sal_socket/include/socket/arpa/inet.h b/components/net/sal_socket/include/socket/arpa/inet.h
new file mode 100644
index 0000000000..e7d856d434
--- /dev/null
+++ b/components/net/sal_socket/include/socket/arpa/inet.h
@@ -0,0 +1,30 @@
+/*
+ * File      : inet.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ */
+
+#ifndef INET_H__
+#define INET_H__
+
+#include <sal_ipaddr.h>
+
+#endif
diff --git a/components/net/sal_socket/include/socket/netdb.h b/components/net/sal_socket/include/socket/netdb.h
new file mode 100644
index 0000000000..c1ffbb826c
--- /dev/null
+++ b/components/net/sal_socket/include/socket/netdb.h
@@ -0,0 +1,49 @@
+/*
+ * File      : netdb.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ * 2108-05-24     ChenYong     Add socket abstraction layer
+ */
+
+#ifndef NETDB_H__
+#define NETDB_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sal_netdb.h>
+
+struct hostent *gethostbyname(const char *name);
+
+int gethostbyname_r(const char *name, struct hostent *ret, char *buf,
+                size_t buflen, struct hostent **result, int *h_errnop);
+void freeaddrinfo(struct addrinfo *ai);
+int getaddrinfo(const char *nodename,
+       const char *servname,
+       const struct addrinfo *hints,
+       struct addrinfo **res);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/net/sal_socket/include/socket/netinet/in.h b/components/net/sal_socket/include/socket/netinet/in.h
new file mode 100644
index 0000000000..d01a9b3f89
--- /dev/null
+++ b/components/net/sal_socket/include/socket/netinet/in.h
@@ -0,0 +1,34 @@
+/*
+ * File      : in.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ */
+
+#ifndef IN_H__
+#define IN_H__
+
+#include <sys/socket.h>
+
+#ifndef IN6_IS_ADDR_MULTICAST
+#define IN6_IS_ADDR_MULTICAST(a) (((uint8_t *) (a))[0] == 0xff)
+#endif
+
+#endif
diff --git a/components/net/sal_socket/include/socket/netinet/tcp.h b/components/net/sal_socket/include/socket/netinet/tcp.h
new file mode 100644
index 0000000000..aafb0f15d0
--- /dev/null
+++ b/components/net/sal_socket/include/socket/netinet/tcp.h
@@ -0,0 +1,30 @@
+/*
+ * File      : tcp.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ */
+
+#ifndef TCP_H__
+#define TCP_H__
+
+#include <sys/socket.h>
+
+#endif
diff --git a/components/net/sal_socket/include/socket/netinet/udp.h b/components/net/sal_socket/include/socket/netinet/udp.h
new file mode 100644
index 0000000000..4b84755e68
--- /dev/null
+++ b/components/net/sal_socket/include/socket/netinet/udp.h
@@ -0,0 +1,30 @@
+/*
+ * File      : udp.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ */
+
+#ifndef UDP_H__
+#define UDP_H__
+
+#include <sys/socket.h>
+
+#endif
diff --git a/components/net/sal_socket/include/socket/sys_socket/sys/socket.h b/components/net/sal_socket/include/socket/sys_socket/sys/socket.h
new file mode 100644
index 0000000000..2b0357ff81
--- /dev/null
+++ b/components/net/sal_socket/include/socket/sys_socket/sys/socket.h
@@ -0,0 +1,58 @@
+/*
+ * File      : socket.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2018, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-02-17     Bernard      First version
+ * 2018-05-17     ChenYong     Add socket abstraction layer
+ */
+
+#ifndef SYS_SOCKET_H_
+#define SYS_SOCKET_H_
+
+#include <sal_socket.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int accept(int s, struct sockaddr *addr, socklen_t *addrlen);
+int bind(int s, const struct sockaddr *name, socklen_t namelen);
+int shutdown(int s, int how);
+int getpeername (int s, struct sockaddr *name, socklen_t *namelen);
+int getsockname (int s, struct sockaddr *name, socklen_t *namelen);
+int getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
+int setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
+int connect(int s, const struct sockaddr *name, socklen_t namelen);
+int listen(int s, int backlog);
+int recv(int s, void *mem, size_t len, int flags);
+int recvfrom(int s, void *mem, size_t len, int flags,
+      struct sockaddr *from, socklen_t *fromlen);
+int send(int s, const void *dataptr, size_t size, int flags);
+int sendto(int s, const void *dataptr, size_t size, int flags,
+    const struct sockaddr *to, socklen_t tolen);
+int socket(int domain, int type, int protocol);
+int closesocket(int s);
+int ioctlsocket(int s, long cmd, void *arg);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _SYS_SOCKET_H_ */