/** * @file * Sockets BSD-Like API module * */ /* * Copyright (c) 2001-2004 Swedish Institute of Computer Science. * All rights reserved. * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY * OF SUCH DAMAGE. * * This file is part of the lwIP TCP/IP stack. * * Author: Adam Dunkels * * Improved by Marc Boucher and David Haas * */ #include "lwip/opt.h" #if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ #include "lwip/sockets.h" #include "lwip/api.h" #include "lwip/sys.h" #include "lwip/igmp.h" #include "lwip/inet.h" #include "lwip/tcp.h" #include "lwip/raw.h" #include "lwip/udp.h" #include "lwip/memp.h" #include "lwip/pbuf.h" #include "lwip/priv/tcpip_priv.h" #include "lwip/priv/api_msg.h" //#include "esp_common.h" #if LWIP_CHECKSUM_ON_COPY #include "lwip/inet_chksum.h" #endif #include /* If the netconn API is not required publicly, then we include the necessary files here to get the implementation */ #if !LWIP_NETCONN #undef LWIP_NETCONN #define LWIP_NETCONN 1 #include "api_msg.c" #include "api_lib.c" #include "netbuf.c" #undef LWIP_NETCONN #define LWIP_NETCONN 0 #endif #if LWIP_IPV4 #define IP4ADDR_PORT_TO_SOCKADDR(sin, ipaddr, port) do { \ (sin)->sin_len = sizeof(struct sockaddr_in); \ (sin)->sin_family = AF_INET; \ (sin)->sin_port = htons((port)); \ inet_addr_from_ipaddr(&(sin)->sin_addr, ipaddr); \ memset((sin)->sin_zero, 0, SIN_ZERO_LEN); }while(0) #define SOCKADDR4_TO_IP4ADDR_PORT(sin, ipaddr, port) do { \ inet_addr_to_ipaddr(ip_2_ip4(ipaddr), &((sin)->sin_addr)); \ (port) = ntohs((sin)->sin_port); }while(0) #endif /* LWIP_IPV4 */ #if LWIP_IPV6 #define IP6ADDR_PORT_TO_SOCKADDR(sin6, ipaddr, port) do { \ (sin6)->sin6_len = sizeof(struct sockaddr_in6); \ (sin6)->sin6_family = AF_INET6; \ (sin6)->sin6_port = htons((port)); \ (sin6)->sin6_flowinfo = 0; \ inet6_addr_from_ip6addr(&(sin6)->sin6_addr, ipaddr); \ (sin6)->sin6_scope_id = 0; }while(0) #define SOCKADDR6_TO_IP6ADDR_PORT(sin6, ipaddr, port) do { \ inet6_addr_to_ip6addr(ip_2_ip6(ipaddr), &((sin6)->sin6_addr)); \ (port) = ntohs((sin6)->sin6_port); }while(0) #endif /* LWIP_IPV6 */ #if LWIP_IPV4 && LWIP_IPV6 static void sockaddr_to_ipaddr_port(const struct sockaddr* sockaddr, ip_addr_t* ipaddr, u16_t* port); #define IS_SOCK_ADDR_LEN_VALID(namelen) (((namelen) == sizeof(struct sockaddr_in)) || \ ((namelen) == sizeof(struct sockaddr_in6))) #define IS_SOCK_ADDR_TYPE_VALID(name) (((name)->sa_family == AF_INET) || \ ((name)->sa_family == AF_INET6)) #define SOCK_ADDR_TYPE_MATCH(name, sock) \ ((((name)->sa_family == AF_INET) && !(NETCONNTYPE_ISIPV6((sock)->conn->type))) || \ (((name)->sa_family == AF_INET6) && (NETCONNTYPE_ISIPV6((sock)->conn->type)))) #define IPADDR_PORT_TO_SOCKADDR(sockaddr, ipaddr, port) do { \ if (IP_IS_V6(ipaddr)) { \ IP6ADDR_PORT_TO_SOCKADDR((struct sockaddr_in6*)(void*)(sockaddr), ip_2_ip6(ipaddr), port); \ } else { \ IP4ADDR_PORT_TO_SOCKADDR((struct sockaddr_in*)(void*)(sockaddr), ip_2_ip4(ipaddr), port); \ } } while(0) #define SOCKADDR_TO_IPADDR_PORT(sockaddr, ipaddr, port) sockaddr_to_ipaddr_port(sockaddr, ipaddr, &(port)) #define DOMAIN_TO_NETCONN_TYPE(domain, type) (((domain) == AF_INET) ? \ (type) : (enum netconn_type)((type) | NETCONN_TYPE_IPV6)) #elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */ #define IS_SOCK_ADDR_LEN_VALID(namelen) ((namelen) == sizeof(struct sockaddr_in6)) #define IS_SOCK_ADDR_TYPE_VALID(name) ((name)->sa_family == AF_INET6) #define SOCK_ADDR_TYPE_MATCH(name, sock) 1 #define IPADDR_PORT_TO_SOCKADDR(sockaddr, ipaddr, port) \ IP6ADDR_PORT_TO_SOCKADDR((struct sockaddr_in6*)(void*)(sockaddr), ip_2_ip6(ipaddr), port) #define SOCKADDR_TO_IPADDR_PORT(sockaddr, ipaddr, port) \ SOCKADDR6_TO_IP6ADDR_PORT((const struct sockaddr_in6*)(const void*)(sockaddr), ipaddr, port) #define DOMAIN_TO_NETCONN_TYPE(domain, netconn_type) (netconn_type) #else /*-> LWIP_IPV4: LWIP_IPV4 && LWIP_IPV6 */ #define IS_SOCK_ADDR_LEN_VALID(namelen) ((namelen) == sizeof(struct sockaddr_in)) #define IS_SOCK_ADDR_TYPE_VALID(name) ((name)->sa_family == AF_INET) #define SOCK_ADDR_TYPE_MATCH(name, sock) 1 #define IPADDR_PORT_TO_SOCKADDR(sockaddr, ipaddr, port) \ IP4ADDR_PORT_TO_SOCKADDR((struct sockaddr_in*)(void*)(sockaddr), ip_2_ip4(ipaddr), port) #define SOCKADDR_TO_IPADDR_PORT(sockaddr, ipaddr, port) \ SOCKADDR4_TO_IP4ADDR_PORT((const struct sockaddr_in*)(const void*)(sockaddr), ipaddr, port) #define DOMAIN_TO_NETCONN_TYPE(domain, netconn_type) (netconn_type) #endif /* LWIP_IPV6 */ #define IS_SOCK_ADDR_TYPE_VALID_OR_UNSPEC(name) (((name)->sa_family == AF_UNSPEC) || \ IS_SOCK_ADDR_TYPE_VALID(name)) #define SOCK_ADDR_TYPE_MATCH_OR_UNSPEC(name, sock) (((name)->sa_family == AF_UNSPEC) || \ SOCK_ADDR_TYPE_MATCH(name, sock)) #define IS_SOCK_ADDR_ALIGNED(name) ((((mem_ptr_t)(name)) % 4) == 0) #define LWIP_SOCKOPT_CHECK_OPTLEN(optlen, opttype) do { if ((optlen) < sizeof(opttype)) { return EINVAL; }}while(0) #define LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, optlen, opttype) do { \ LWIP_SOCKOPT_CHECK_OPTLEN(optlen, opttype); \ if ((sock)->conn == NULL) { return EINVAL; } }while(0) #define LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, opttype) do { \ LWIP_SOCKOPT_CHECK_OPTLEN(optlen, opttype); \ if (((sock)->conn == NULL) || ((sock)->conn->pcb.tcp == NULL)) { return EINVAL; } }while(0) #define LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, opttype, netconntype) do { \ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, opttype); \ if (NETCONNTYPE_GROUP(netconn_type((sock)->conn)) != netconntype) { return ENOPROTOOPT; } }while(0) #define LWIP_SETGETSOCKOPT_DATA_VAR_REF(name) API_VAR_REF(name) #define LWIP_SETGETSOCKOPT_DATA_VAR_DECLARE(name) API_VAR_DECLARE(struct lwip_setgetsockopt_data, name) #define LWIP_SETGETSOCKOPT_DATA_VAR_FREE(name) API_VAR_FREE(MEMP_SOCKET_SETGETSOCKOPT_DATA, name) #if LWIP_MPU_COMPATIBLE #define LWIP_SETGETSOCKOPT_DATA_VAR_ALLOC(name, sock) do { \ name = (struct lwip_setgetsockopt_data *)memp_malloc(MEMP_SOCKET_SETGETSOCKOPT_DATA); \ if (name == NULL) { \ sock_set_errno(sock, ENOMEM); \ return -1; \ } }while(0) #else /* LWIP_MPU_COMPATIBLE */ #define LWIP_SETGETSOCKOPT_DATA_VAR_ALLOC(name, sock) #endif /* LWIP_MPU_COMPATIBLE */ #if LWIP_SO_SNDRCVTIMEO_NONSTANDARD #define LWIP_SO_SNDRCVTIMEO_OPTTYPE int #define LWIP_SO_SNDRCVTIMEO_SET(optval, val) (*(int *)(optval) = (val)) #define LWIP_SO_SNDRCVTIMEO_GET_MS(optval) ((s32_t)*(const int*)(optval)) #else #define LWIP_SO_SNDRCVTIMEO_OPTTYPE struct timeval #define LWIP_SO_SNDRCVTIMEO_SET(optval, val) do { \ s32_t loc = (val); \ ((struct timeval *)(optval))->tv_sec = (loc) / 1000U; \ ((struct timeval *)(optval))->tv_usec = ((loc) % 1000U) * 1000U; }while(0) #define LWIP_SO_SNDRCVTIMEO_GET_MS(optval) ((((const struct timeval *)(optval))->tv_sec * 1000U) + (((const struct timeval *)(optval))->tv_usec / 1000U)) #endif #define NUM_SOCKETS MEMP_NUM_NETCONN /** This is overridable for the rare case where more than 255 threads * select on the same socket... */ #ifndef SELWAIT_T #define SELWAIT_T u8_t #endif /** Contains all internal pointers and states used for a socket */ struct lwip_sock { /** sockets currently are built on netconns, each socket has one netconn */ struct netconn *conn; /** data that was left from the previous read */ void *lastdata; /** offset in the data that was left from the previous read */ u16_t lastoffset; /** number of times data was received, set by event_callback(), tested by the receive and select functions */ s16_t rcvevent; /** number of times data was ACKed (free send buffer), set by event_callback(), tested by select */ u16_t sendevent; /** error happened for this socket, set by event_callback(), tested by select */ u16_t errevent; /** last error that occurred on this socket (in fact, all our errnos fit into an u8_t) */ u8_t err; #if ESP_THREAD_SAFE /* lock is used to protect state/ref field, however this lock is not a perfect lock, e.g * taskA and taskB can access sock X, then taskA freed sock X, before taskB detect * this, taskC reuse sock X, then when taskB try to access sock X, problem may happen. * A mitigation solution may be, when allocate a socket, alloc the least frequently used * socket. */ sys_mutex_t lock; /* can be LWIP_SOCK_OPEN/LWIP_SOCK_CLOSING/LWIP_SOCK_CLOSED */ u8_t state; /* if ref is 0, the sock need/can to be freed */ s8_t ref; /* indicate how long the sock is in LWIP_SOCK_CLOSED status */ u8_t age; #endif /** counter of how many threads are waiting for this socket using select */ SELWAIT_T select_waiting; }; #if ESP_THREAD_SAFE #define LWIP_SOCK_OPEN 0 #define LWIP_SOCK_CLOSING 1 #define LWIP_SOCK_CLOSED 2 #define LWIP_SOCK_LOCK(sock) \ do{\ /*LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("l\n"));*/\ sys_mutex_lock(&sock->lock);\ /*LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("l ok\n"));*/\ }while(0) #define LWIP_SOCK_UNLOCK(sock) \ do{\ sys_mutex_unlock(&sock->lock);\ /*LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG1, ("unl\n"));*/\ }while(0) #define LWIP_FREE_SOCK(sock) \ do{\ if(sock->conn && NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP){\ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_FREE_SOCK:free tcp sock\n"));\ free_socket(sock, 1);\ } else {\ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_FREE_SOCK:free non-tcp sock\n"));\ free_socket(sock, 0);\ }\ }while(0) #define LWIP_SET_CLOSE_FLAG() \ do{\ LWIP_SOCK_LOCK(__sock);\ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("mark sock closing\n"));\ __sock->state = LWIP_SOCK_CLOSING;\ LWIP_SOCK_UNLOCK(__sock);\ }while(0) #define LWIP_API_LOCK() \ struct lwip_sock *__sock;\ int __ret;\ \ __sock = get_socket(s);\ if (!__sock) {\ return -1;\ }\ \ do{\ LWIP_SOCK_LOCK(__sock);\ __sock->ref ++;\ if (__sock->state != LWIP_SOCK_OPEN) {\ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_API_LOCK:soc is %d, return\n", __sock->state));\ __sock->ref --;\ LWIP_SOCK_UNLOCK(__sock);\ return -1;\ }\ \ LWIP_SOCK_UNLOCK(__sock);\ }while(0) #define LWIP_API_UNLOCK() \ do{\ LWIP_SOCK_LOCK(__sock);\ __sock->ref --;\ if (__sock->state == LWIP_SOCK_CLOSING) {\ if (__sock->ref == 0){\ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_API_UNLOCK:ref 0, free __sock\n"));\ LWIP_FREE_SOCK(__sock);\ LWIP_SOCK_UNLOCK(__sock);\ return __ret;\ }\ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_API_UNLOCK: soc state is closing, return\n"));\ LWIP_SOCK_UNLOCK(__sock);\ return __ret;\ }\ \ LWIP_SOCK_UNLOCK(__sock);\ return __ret;\ }while(0) #endif #if LWIP_NETCONN_SEM_PER_THREAD #define SELECT_SEM_T sys_sem_t* #define SELECT_SEM_PTR(sem) (sem) #else /* LWIP_NETCONN_SEM_PER_THREAD */ #define SELECT_SEM_T sys_sem_t #define SELECT_SEM_PTR(sem) (&(sem)) #endif /* LWIP_NETCONN_SEM_PER_THREAD */ /** Description for a task waiting in select */ struct lwip_select_cb { /** Pointer to the next waiting task */ struct lwip_select_cb *next; /** Pointer to the previous waiting task */ struct lwip_select_cb *prev; /** readset passed to select */ fd_set *readset; /** writeset passed to select */ fd_set *writeset; /** unimplemented: exceptset passed to select */ fd_set *exceptset; /** don't signal the same semaphore twice: set to 1 when signalled */ int sem_signalled; /** semaphore to wake up a task waiting for select */ SELECT_SEM_T sem; }; /** A struct sockaddr replacement that has the same alignment as sockaddr_in/ * sockaddr_in6 if instantiated. */ union sockaddr_aligned { struct sockaddr sa; #if LWIP_IPV6 struct sockaddr_in6 sin6; #endif /* LWIP_IPV6 */ #if LWIP_IPV4 struct sockaddr_in sin; #endif /* LWIP_IPV4 */ }; #if LWIP_IGMP /* Define the number of IPv4 multicast memberships, default is one per socket */ #ifndef LWIP_SOCKET_MAX_MEMBERSHIPS #define LWIP_SOCKET_MAX_MEMBERSHIPS NUM_SOCKETS #endif /* This is to keep track of IP_ADD_MEMBERSHIP calls to drop the membership when a socket is closed */ struct lwip_socket_multicast_pair { /** the socket (+1 to not require initialization) */ int sa; /** the interface address */ ip4_addr_t if_addr; /** the group address */ ip4_addr_t multi_addr; }; struct lwip_socket_multicast_pair socket_ipv4_multicast_memberships[LWIP_SOCKET_MAX_MEMBERSHIPS]; static int lwip_socket_register_membership(int s, const ip4_addr_t *if_addr, const ip4_addr_t *multi_addr); static void lwip_socket_unregister_membership(int s, const ip4_addr_t *if_addr, const ip4_addr_t *multi_addr); static void lwip_socket_drop_registered_memberships(int s); #endif /* LWIP_IGMP */ #if ESP_LWIP #include "esp_wifi_internal.h" #include "esp_system.h" /* Please be notified that this flow control is just a workaround for fixing wifi Q full issue. * Under UDP/TCP pressure test, we found that the sockets may cause wifi tx queue full if the socket * sending speed is faster than the wifi sending speed, it will finally cause the packet to be dropped * in wifi layer, it's not acceptable in some application. That's why we introdue the tx flow control here. * However, current solution is just a workaround, we need to consider the return value of wifi tx interface, * and feedback the return value to lwip and let lwip do the flow control itself. */ static inline void esp32_tx_flow_ctrl(void) { //TODO we need to do flow control for UDP #if 0 uint8_t _wait_delay = 1; while ((system_get_free_heap_size() < HEAP_HIGHWAT) || esp_wifi_internal_tx_is_stop()){ vTaskDelay(_wait_delay/portTICK_RATE_MS); if (_wait_delay < 64) _wait_delay *= 2; } #endif } #else #define esp32_tx_flow_ctrl() #endif /** The global array of available sockets */ static struct lwip_sock sockets[NUM_SOCKETS]; #if ESP_THREAD_SAFE static bool sockets_init_flag = false; #endif /** The global list of tasks waiting for select */ static struct lwip_select_cb *select_cb_list; /** This counter is increased from lwip_select when the list is changed and checked in event_callback to see if it has changed. */ static volatile int select_cb_ctr; /** Table to quickly map an lwIP error (err_t) to a socket error * by using -err as an index */ static const int err_to_errno_table[] = { 0, /* ERR_OK 0 No error, everything OK. */ ENOMEM, /* ERR_MEM -1 Out of memory error. */ ENOBUFS, /* ERR_BUF -2 Buffer error. */ EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */ EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */ EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */ EINVAL, /* ERR_VAL -6 Illegal value. */ EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */ EADDRINUSE, /* ERR_USE -8 Address in use. */ #if ESP_LWIP EALREADY, /* ERR_ALREADY -9 Already connected. */ EISCONN, /* ERR_ISCONN -10 Conn already established */ ECONNABORTED, /* ERR_ABRT -11 Connection aborted. */ ECONNRESET, /* ERR_RST -12 Connection reset. */ ENOTCONN, /* ERR_CLSD -13 Connection closed. */ ENOTCONN, /* ERR_CONN -14 Not connected. */ EIO, /* ERR_ARG -15 Illegal argument. */ -1, /* ERR_IF -16 Low-level netif error */ #else EALREADY, /* ERR_ALREADY -9 Already connecting. */ EISCONN, /* ERR_ISCONN -10 Conn already established.*/ ENOTCONN, /* ERR_CONN -11 Not connected. */ -1, /* ERR_IF -12 Low-level netif error */ ECONNABORTED, /* ERR_ABRT -13 Connection aborted. */ ECONNRESET, /* ERR_RST -14 Connection reset. */ ENOTCONN, /* ERR_CLSD -15 Connection closed. */ EIO /* ERR_ARG -16 Illegal argument. */ #endif }; #define ERR_TO_ERRNO_TABLE_SIZE LWIP_ARRAYSIZE(err_to_errno_table) #define err_to_errno(err) \ ((unsigned)(-(signed)(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \ err_to_errno_table[-(signed)(err)] : EIO) #if LWIP_SOCKET_SET_ERRNO #ifndef set_errno #define set_errno(err) do { if (err) { errno = (err); } } while(0) #endif #else /* LWIP_SOCKET_SET_ERRNO */ #define set_errno(err) #endif /* LWIP_SOCKET_SET_ERRNO */ #define sock_set_errno(sk, e) do { \ const int sockerr = (e); \ sk->err = (u8_t)sockerr; \ set_errno(sockerr); \ } while (0) /* Forward declaration of some functions */ static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len); #if !LWIP_TCPIP_CORE_LOCKING static void lwip_getsockopt_callback(void *arg); static void lwip_setsockopt_callback(void *arg); #endif static u8_t lwip_getsockopt_impl(int s, int level, int optname, void *optval, socklen_t *optlen); static u8_t lwip_setsockopt_impl(int s, int level, int optname, const void *optval, socklen_t optlen); #if LWIP_IPV4 && LWIP_IPV6 static void sockaddr_to_ipaddr_port(const struct sockaddr* sockaddr, ip_addr_t* ipaddr, u16_t* port) { if ((sockaddr->sa_family) == AF_INET6) { SOCKADDR6_TO_IP6ADDR_PORT((const struct sockaddr_in6*)(const void*)(sockaddr), ipaddr, *port); ipaddr->type = IPADDR_TYPE_V6; } else { SOCKADDR4_TO_IP4ADDR_PORT((const struct sockaddr_in*)(const void*)(sockaddr), ipaddr, *port); ipaddr->type = IPADDR_TYPE_V4; } } #endif /* LWIP_IPV4 && LWIP_IPV6 */ /** LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */ void lwip_socket_thread_init(void) { netconn_thread_init(); } /** LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore */ void lwip_socket_thread_cleanup(void) { netconn_thread_cleanup(); } /** * Map a externally used socket index to the internal socket representation. * * @param s externally used socket index * @return struct lwip_sock for the socket or NULL if not found */ static struct lwip_sock * get_socket(int s) { struct lwip_sock *sock; s -= LWIP_SOCKET_OFFSET; if ((s < 0) || (s >= NUM_SOCKETS)) { LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s + LWIP_SOCKET_OFFSET)); set_errno(EBADF); return NULL; } sock = &sockets[s]; if (!sock->conn) { LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s + LWIP_SOCKET_OFFSET)); set_errno(EBADF); return NULL; } return sock; } /** * Same as get_socket but doesn't set errno * * @param s externally used socket index * @return struct lwip_sock for the socket or NULL if not found */ static struct lwip_sock * tryget_socket(int s) { s -= LWIP_SOCKET_OFFSET; if ((s < 0) || (s >= NUM_SOCKETS)) { return NULL; } if (!sockets[s].conn) { return NULL; } return &sockets[s]; } /** * Allocate a new socket for a given netconn. * * @param newconn the netconn for which to allocate a socket * @param accepted 1 if socket has been created by accept(), * 0 if socket has been created by socket() * @return the index of the new socket; -1 on error */ static int alloc_socket(struct netconn *newconn, int accepted) { int i; SYS_ARCH_DECL_PROTECT(lev); #if ESP_THREAD_SAFE bool found = false; int oldest = -1; SYS_ARCH_PROTECT(lev); if (sockets_init_flag == false){ sockets_init_flag = true; memset(sockets, 0, sizeof(sockets)); } for (i = 0; i < NUM_SOCKETS; ++i) { sockets[i].age ++; if (found == true){ continue; } if (!sockets[i].conn && (sockets[i].state == LWIP_SOCK_OPEN)) { found = true; oldest = i; continue; } if (!sockets[i].conn){ if (oldest == -1 || sockets[i].age > sockets[oldest].age){ oldest = i; } } } if ((oldest != -1) && !sockets[oldest].conn) { found = true; sockets[oldest].conn = newconn; } SYS_ARCH_UNPROTECT(lev); if (found == true) { sockets[oldest].lastdata = NULL; sockets[oldest].lastoffset = 0; sockets[oldest].rcvevent = 0; /* TCP sendbuf is empty, but the socket is not yet writable until connected * (unless it has been created by accept()). */ sockets[oldest].sendevent = (NETCONNTYPE_GROUP(newconn->type) == NETCONN_TCP ? (accepted != 0) : 1); sockets[oldest].errevent = 0; sockets[oldest].err = 0; sockets[oldest].select_waiting = 0; sockets[oldest].state = LWIP_SOCK_OPEN; sockets[oldest].age = 0; sockets[oldest].ref = 0; if (!sockets[oldest].lock){ /* one time init and never free */ if (sys_mutex_new(&sockets[oldest].lock) != ERR_OK){ LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("new sock lock fail\n")); return -1; } } LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("alloc_socket: alloc %d ok\n", oldest)); return oldest + LWIP_SOCKET_OFFSET; } LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("alloc_socket: failed\n")); #else /* allocate a new socket identifier */ for (i = 0; i < NUM_SOCKETS; ++i) { /* Protect socket array */ SYS_ARCH_PROTECT(lev); if (!sockets[i].conn) { sockets[i].conn = newconn; /* The socket is not yet known to anyone, so no need to protect after having marked it as used. */ SYS_ARCH_UNPROTECT(lev); sockets[i].lastdata = NULL; sockets[i].lastoffset = 0; sockets[i].rcvevent = 0; /* TCP sendbuf is empty, but the socket is not yet writable until connected * (unless it has been created by accept()). */ sockets[i].sendevent = (NETCONNTYPE_GROUP(newconn->type) == NETCONN_TCP ? (accepted != 0) : 1); sockets[i].errevent = 0; sockets[i].err = 0; sockets[i].select_waiting = 0; return i + LWIP_SOCKET_OFFSET; } SYS_ARCH_UNPROTECT(lev); } #endif return -1; } /** Free a socket. The socket's netconn must have been * delete before! * * @param sock the socket to free * @param is_tcp != 0 for TCP sockets, used to free lastdata */ static void free_socket(struct lwip_sock *sock, int is_tcp) { void *lastdata; SYS_ARCH_DECL_PROTECT(lev); LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("free_sockset:free socket s=%p is_tcp=%d\n", sock, is_tcp)); lastdata = sock->lastdata; sock->lastdata = NULL; sock->lastoffset = 0; sock->err = 0; #if ESP_THREAD_SAFE if (sock->conn){ netconn_free(sock->conn); } SYS_ARCH_PROTECT(lev); sock->age = 0; sock->conn = NULL; sock->state = LWIP_SOCK_CLOSED; SYS_ARCH_UNPROTECT(lev); #endif /* Protect socket array */ SYS_ARCH_SET(sock->conn, NULL); /* don't use 'sock' after this line, as another task might have allocated it */ if (lastdata != NULL) { if (is_tcp) { LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("free_sockset:free lastdata pbuf=%p\n", lastdata)); pbuf_free((struct pbuf *)lastdata); } else { LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("free_sockset:free lastdata, netbuf=%p\n", lastdata)); netbuf_delete((struct netbuf *)lastdata); } } } /* Below this, the well-known socket functions are implemented. * Use google.com or opengroup.org to get a good description :-) * * Exceptions are documented! */ int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen) { struct lwip_sock *sock, *nsock; struct netconn *newconn; ip_addr_t naddr; u16_t port = 0; int newsock; err_t err; SYS_ARCH_DECL_PROTECT(lev); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s)); sock = get_socket(s); if (!sock) { return -1; } if (netconn_is_nonblocking(sock->conn) && (sock->rcvevent <= 0)) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): returning EWOULDBLOCK\n", s)); sock_set_errno(sock, EWOULDBLOCK); return -1; } /* wait for a new connection */ err = netconn_accept(sock->conn, &newconn); if (err != ERR_OK) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_acept failed, err=%d\n", s, err)); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { sock_set_errno(sock, EOPNOTSUPP); return EOPNOTSUPP; } sock_set_errno(sock, err_to_errno(err)); return -1; } LWIP_ASSERT("newconn != NULL", newconn != NULL); /* Prevent automatic window updates, we do this on our own! */ netconn_set_noautorecved(newconn, 1); newsock = alloc_socket(newconn, 1); if (newsock == -1) { netconn_delete(newconn); sock_set_errno(sock, ENFILE); return -1; } LWIP_ASSERT("invalid socket index", (newsock >= LWIP_SOCKET_OFFSET) && (newsock < NUM_SOCKETS + LWIP_SOCKET_OFFSET)); LWIP_ASSERT("newconn->callback == event_callback", newconn->callback == event_callback); nsock = &sockets[newsock - LWIP_SOCKET_OFFSET]; /* See event_callback: If data comes in right away after an accept, even * though the server task might not have created a new socket yet. * In that case, newconn->socket is counted down (newconn->socket--), * so nsock->rcvevent is >= 1 here! */ SYS_ARCH_PROTECT(lev); nsock->rcvevent += (s16_t)(-1 - newconn->socket); newconn->socket = newsock; SYS_ARCH_UNPROTECT(lev); /* Note that POSIX only requires us to check addr is non-NULL. addrlen must * not be NULL if addr is valid. */ if (addr != NULL) { union sockaddr_aligned tempaddr; /* get the IP address and port of the remote host */ err = netconn_peer(newconn, &naddr, &port); if (err != ERR_OK) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d): netconn_peer failed, err=%d\n", s, err)); netconn_delete(newconn); free_socket(nsock, 1); sock_set_errno(sock, err_to_errno(err)); return -1; } LWIP_ASSERT("addr valid but addrlen NULL", addrlen != NULL); IPADDR_PORT_TO_SOCKADDR(&tempaddr, &naddr, port); if (*addrlen > tempaddr.sa.sa_len) { *addrlen = tempaddr.sa.sa_len; } MEMCPY(addr, &tempaddr, *addrlen); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock)); ip_addr_debug_print_val(SOCKETS_DEBUG, naddr); LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", port)); } else { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d", s, newsock)); } sock_set_errno(sock, 0); return newsock; } int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen) { struct lwip_sock *sock; ip_addr_t local_addr; u16_t local_port; err_t err; sock = get_socket(s); if (!sock) { return -1; } if (!SOCK_ADDR_TYPE_MATCH(name, sock)) { /* sockaddr does not match socket type (IPv4/IPv6) */ sock_set_errno(sock, err_to_errno(ERR_VAL)); return -1; } /* check size, family and alignment of 'name' */ LWIP_ERROR("lwip_bind: invalid address", (IS_SOCK_ADDR_LEN_VALID(namelen) && IS_SOCK_ADDR_TYPE_VALID(name) && IS_SOCK_ADDR_ALIGNED(name)), sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); LWIP_UNUSED_ARG(namelen); SOCKADDR_TO_IPADDR_PORT(name, &local_addr, local_port); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s)); ip_addr_debug_print_val(SOCKETS_DEBUG, local_addr); LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", local_port)); err = netconn_bind(sock->conn, &local_addr, local_port); if (err != ERR_OK) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) failed, err=%d\n", s, err)); sock_set_errno(sock, err_to_errno(err)); return -1; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d) succeeded\n", s)); sock_set_errno(sock, 0); return 0; } int lwip_close(int s) { struct lwip_sock *sock; int is_tcp = 0; err_t err; LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("lwip_close: (%d)\n", s)); sock = get_socket(s); if (!sock) { LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("lwip_close: sock is null, return -1\n")); return -1; } if (sock->conn != NULL) { is_tcp = NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP; LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("lwip_close: is_tcp=%d\n", is_tcp)); } else { LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("conn is null\n")); LWIP_ASSERT("lwip_close: sock->lastdata == NULL", sock->lastdata == NULL); } #if LWIP_IGMP /* drop all possibly joined IGMP memberships */ lwip_socket_drop_registered_memberships(s); #endif /* LWIP_IGMP */ err = netconn_delete(sock->conn); if (err != ERR_OK) { LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("netconn_delete fail, ret=%d\n", err)); sock_set_errno(sock, err_to_errno(err)); return -1; } #if !ESP_THREAD_SAFE free_socket(sock, is_tcp); #endif set_errno(0); return 0; } int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen) { struct lwip_sock *sock; err_t err; sock = get_socket(s); if (!sock) { return -1; } if (!SOCK_ADDR_TYPE_MATCH_OR_UNSPEC(name, sock)) { /* sockaddr does not match socket type (IPv4/IPv6) */ sock_set_errno(sock, err_to_errno(ERR_VAL)); return -1; } LWIP_UNUSED_ARG(namelen); if (name->sa_family == AF_UNSPEC) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s)); err = netconn_disconnect(sock->conn); } else { ip_addr_t remote_addr; u16_t remote_port; /* check size, family and alignment of 'name' */ LWIP_ERROR("lwip_connect: invalid address", IS_SOCK_ADDR_LEN_VALID(namelen) && IS_SOCK_ADDR_TYPE_VALID_OR_UNSPEC(name) && IS_SOCK_ADDR_ALIGNED(name), sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); SOCKADDR_TO_IPADDR_PORT(name, &remote_addr, remote_port); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s)); ip_addr_debug_print_val(SOCKETS_DEBUG, remote_addr); LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", remote_port)); err = netconn_connect(sock->conn, &remote_addr, remote_port); } if (err != ERR_OK) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) failed, err=%d\n", s, err)); sock_set_errno(sock, err_to_errno(err)); return -1; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d) succeeded\n", s)); sock_set_errno(sock, 0); return 0; } /** * Set a socket into listen mode. * The socket may not have been used for another connection previously. * * @param s the socket to set to listening mode * @param backlog (ATTENTION: needs TCP_LISTEN_BACKLOG=1) * @return 0 on success, non-zero on failure */ int lwip_listen(int s, int backlog) { struct lwip_sock *sock; err_t err; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d, backlog=%d)\n", s, backlog)); sock = get_socket(s); if (!sock) { return -1; } /* limit the "backlog" parameter to fit in an u8_t */ backlog = LWIP_MIN(LWIP_MAX(backlog, 0), 0xff); err = netconn_listen_with_backlog(sock->conn, (u8_t)backlog); if (err != ERR_OK) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err)); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { sock_set_errno(sock, EOPNOTSUPP); return -1; } sock_set_errno(sock, err_to_errno(err)); return -1; } sock_set_errno(sock, 0); return 0; } int lwip_recvfrom(int s, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen) { struct lwip_sock *sock; void *buf = NULL; struct pbuf *p; u16_t buflen, copylen; int off = 0; u8_t done = 0; err_t err; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %"SZT_F", 0x%x, ..)\n", s, mem, len, flags)); sock = get_socket(s); if (!sock) { return -1; } do { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: top while sock->lastdata=%p\n", sock->lastdata)); /* Check if there is data left from the last recv operation. */ if (sock->lastdata) { buf = sock->lastdata; } else { /* If this is non-blocking call, then check first */ if (((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) && (sock->rcvevent <= 0)) { if (off > 0) { /* update receive window */ netconn_recved(sock->conn, (u32_t)off); /* already received data, return that */ sock_set_errno(sock, 0); return off; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): returning EWOULDBLOCK\n", s)); sock_set_errno(sock, EWOULDBLOCK); return -1; } /* No data was left from the previous operation, so we try to get some from the network. */ if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { err = netconn_recv_tcp_pbuf(sock->conn, (struct pbuf **)&buf); } else { err = netconn_recv(sock->conn, (struct netbuf **)&buf); } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv err=%d, netbuf=%p\n", err, buf)); if (err != ERR_OK) { if (off > 0) { /* update receive window */ netconn_recved(sock->conn, (u32_t)off); if (err == ERR_CLSD) { /* closed but already received data, ensure select gets the FIN, too */ event_callback(sock->conn, NETCONN_EVT_RCVPLUS, 0); } /* already received data, return that */ sock_set_errno(sock, 0); return off; } /* We should really do some error checking here. */ LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL, error is \"%s\"!\n", s, lwip_strerr(err))); sock_set_errno(sock, err_to_errno(err)); if (err == ERR_CLSD) { return 0; } else { return -1; } } LWIP_ASSERT("buf != NULL", buf != NULL); sock->lastdata = buf; } if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { p = (struct pbuf *)buf; } else { p = ((struct netbuf *)buf)->p; } buflen = p->tot_len; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%"U16_F" len=%"SZT_F" off=%d sock->lastoffset=%"U16_F"\n", buflen, len, off, sock->lastoffset)); buflen -= sock->lastoffset; if (len > buflen) { copylen = buflen; } else { copylen = (u16_t)len; } /* copy the contents of the received buffer into the supplied memory pointer mem */ pbuf_copy_partial(p, (u8_t*)mem + off, copylen, sock->lastoffset); off += copylen; if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { LWIP_ASSERT("invalid copylen, len would underflow", len >= copylen); len -= copylen; if ((len <= 0) || (p->flags & PBUF_FLAG_PUSH) || (sock->rcvevent <= 0) || ((flags & MSG_PEEK) != 0)) { done = 1; } } else { done = 1; } /* Check to see from where the data was.*/ if (done) { #if !SOCKETS_DEBUG if (from && fromlen) #endif /* !SOCKETS_DEBUG */ { u16_t port; ip_addr_t tmpaddr; ip_addr_t *fromaddr; union sockaddr_aligned saddr; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s)); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { fromaddr = &tmpaddr; netconn_getaddr(sock->conn, fromaddr, &port, 0); } else { port = netbuf_fromport((struct netbuf *)buf); fromaddr = netbuf_fromaddr((struct netbuf *)buf); } IPADDR_PORT_TO_SOCKADDR(&saddr, fromaddr, port); ip_addr_debug_print(SOCKETS_DEBUG, fromaddr); LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off)); if (from && fromlen) { if (*fromlen > saddr.sa.sa_len) { *fromlen = saddr.sa.sa_len; } MEMCPY(from, &saddr, *fromlen); #if ESP_LWIP } else { /*fix the code for setting the UDP PROTO's remote infomation by liuh at 2014.8.27*/ if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_UDP){ sock->conn->pcb.udp->remote_ip.u_addr.ip4.addr = fromaddr->u_addr.ip4.addr; sock->conn->pcb.udp->remote_port = port; } #endif } } } /* If we don't peek the incoming message... */ if ((flags & MSG_PEEK) == 0) { /* If this is a TCP socket, check if there is data left in the buffer. If so, it should be saved in the sock structure for next time around. */ if ((NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) && (buflen - copylen > 0)) { sock->lastdata = buf; sock->lastoffset += copylen; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", buf)); } else { sock->lastdata = NULL; sock->lastoffset = 0; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", buf)); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { pbuf_free((struct pbuf *)buf); } else { netbuf_delete((struct netbuf *)buf); } buf = NULL; } } } while (!done); if ((off > 0) && (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) && ((flags & MSG_PEEK) == 0)) { /* update receive window */ netconn_recved(sock->conn, (u32_t)off); } sock_set_errno(sock, 0); return off; } int lwip_read(int s, void *mem, size_t len) { return lwip_recvfrom(s, mem, len, 0, NULL, NULL); } int lwip_recv(int s, void *mem, size_t len, int flags) { return lwip_recvfrom(s, mem, len, flags, NULL, NULL); } int lwip_send(int s, const void *data, size_t size, int flags) { struct lwip_sock *sock; err_t err; u8_t write_flags; size_t written; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n", s, data, size, flags)); sock = get_socket(s); if (!sock) { return -1; } if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { #if (LWIP_UDP || LWIP_RAW) return lwip_sendto(s, data, size, flags, NULL, 0); #else /* (LWIP_UDP || LWIP_RAW) */ sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1; #endif /* (LWIP_UDP || LWIP_RAW) */ } write_flags = NETCONN_COPY | ((flags & MSG_MORE) ? NETCONN_MORE : 0) | ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0); written = 0; err = netconn_write_partly(sock->conn, data, size, write_flags, &written); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d written=%"SZT_F"\n", s, err, written)); sock_set_errno(sock, err_to_errno(err)); return (err == ERR_OK ? (int)written : -1); } int lwip_sendmsg(int s, const struct msghdr *msg, int flags) { struct lwip_sock *sock; struct netbuf *chain_buf; u16_t remote_port; int i; #if LWIP_TCP u8_t write_flags; size_t written; #endif int size = 0; err_t err = ERR_OK; sock = get_socket(s); if (!sock) { return -1; } LWIP_ERROR("lwip_sendmsg: invalid msghdr", msg != NULL, sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); LWIP_UNUSED_ARG(msg->msg_control); LWIP_UNUSED_ARG(msg->msg_controllen); LWIP_UNUSED_ARG(msg->msg_flags); LWIP_ERROR("lwip_sendmsg: invalid msghdr iov", (msg->msg_iov != NULL && msg->msg_iovlen != 0), sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { #if LWIP_TCP write_flags = NETCONN_COPY | ((flags & MSG_MORE) ? NETCONN_MORE : 0) | ((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0); for (i = 0; i < msg->msg_iovlen; i++) { written = 0; err = netconn_write_partly(sock->conn, msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len, write_flags, &written); if (err == ERR_OK) { size += written; /* check that the entire IO vector was accepected, if not return a partial write */ if (written != msg->msg_iov[i].iov_len) break; } /* none of this IO vector was accepted, but previous was, return partial write and conceal ERR_WOULDBLOCK */ else if (err == ERR_WOULDBLOCK && size > 0) { err = ERR_OK; /* let ERR_WOULDBLOCK persist on the netconn since we are returning ERR_OK */ break; } else { size = -1; break; } } sock_set_errno(sock, err_to_errno(err)); return size; #else /* LWIP_TCP */ sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1; #endif /* LWIP_TCP */ } /* else, UDP and RAW NETCONNs */ #if LWIP_UDP || LWIP_RAW LWIP_UNUSED_ARG(flags); LWIP_ERROR("lwip_sendmsg: invalid msghdr name", (((msg->msg_name == NULL) && (msg->msg_namelen == 0)) || IS_SOCK_ADDR_LEN_VALID(msg->msg_namelen)) , sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); /* initialize chain buffer with destination */ chain_buf = netbuf_new(); if (!chain_buf) { sock_set_errno(sock, err_to_errno(ERR_MEM)); return -1; } if (msg->msg_name) { SOCKADDR_TO_IPADDR_PORT((const struct sockaddr *)msg->msg_name, &chain_buf->addr, remote_port); netbuf_fromport(chain_buf) = remote_port; } #if LWIP_NETIF_TX_SINGLE_PBUF for (i = 0; i < msg->msg_iovlen; i++) { size += msg->msg_iov[i].iov_len; } /* Allocate a new netbuf and copy the data into it. */ if (netbuf_alloc(chain_buf, (u16_t)size) == NULL) { err = ERR_MEM; } else { /* flatten the IO vectors */ size_t offset = 0; for (i = 0; i < msg->msg_iovlen; i++) { MEMCPY(&((u8_t*)chain_buf->p->payload)[offset], msg->msg_iov[i].iov_base, msg->msg_iov[i].iov_len); offset += msg->msg_iov[i].iov_len; } #if LWIP_CHECKSUM_ON_COPY { /* This can be improved by using LWIP_CHKSUM_COPY() and aggregating the checksum for each IO vector */ u16_t chksum = ~inet_chksum_pbuf(chain_buf->p); netbuf_set_chksum(chain_buf, chksum); } #endif /* LWIP_CHECKSUM_ON_COPY */ err = ERR_OK; } #else /* LWIP_NETIF_TX_SINGLE_PBUF */ /* create a chained netbuf from the IO vectors. NOTE: we assemble a pbuf chain manually to avoid having to allocate, chain, and delete a netbuf for each iov */ for (i = 0; i < msg->msg_iovlen; i++) { struct pbuf *p = pbuf_alloc(PBUF_TRANSPORT, 0, PBUF_REF); if (p == NULL) { err = ERR_MEM; /* let netbuf_delete() cleanup chain_buf */ break; } p->payload = msg->msg_iov[i].iov_base; LWIP_ASSERT("iov_len < u16_t", msg->msg_iov[i].iov_len <= 0xFFFF); p->len = p->tot_len = (u16_t)msg->msg_iov[i].iov_len; /* netbuf empty, add new pbuf */ if (chain_buf->p == NULL) { chain_buf->p = chain_buf->ptr = p; /* add pbuf to existing pbuf chain */ } else { pbuf_cat(chain_buf->p, p); } } /* save size of total chain */ if (err == ERR_OK) { size = netbuf_len(chain_buf); } #endif /* LWIP_NETIF_TX_SINGLE_PBUF */ if (err == ERR_OK) { /* send the data */ err = netconn_send(sock->conn, chain_buf); } /* deallocated the buffer */ netbuf_delete(chain_buf); sock_set_errno(sock, err_to_errno(err)); return (err == ERR_OK ? size : -1); #else /* LWIP_UDP || LWIP_RAW */ sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1; #endif /* LWIP_UDP || LWIP_RAW */ } int lwip_sendto(int s, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen) { struct lwip_sock *sock; err_t err; u16_t short_size; u16_t remote_port; struct netbuf buf; sock = get_socket(s); if (!sock) { return -1; } if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP) { #if LWIP_TCP return lwip_send(s, data, size, flags); #else /* LWIP_TCP */ LWIP_UNUSED_ARG(flags); sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1; #endif /* LWIP_TCP */ } esp32_tx_flow_ctrl(); if ((to != NULL) && !SOCK_ADDR_TYPE_MATCH(to, sock)) { /* sockaddr does not match socket type (IPv4/IPv6) */ sock_set_errno(sock, err_to_errno(ERR_VAL)); return -1; } /* @todo: split into multiple sendto's? */ LWIP_ASSERT("lwip_sendto: size must fit in u16_t", size <= 0xffff); short_size = (u16_t)size; LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) || (IS_SOCK_ADDR_LEN_VALID(tolen) && IS_SOCK_ADDR_TYPE_VALID(to) && IS_SOCK_ADDR_ALIGNED(to))), sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); LWIP_UNUSED_ARG(tolen); /* initialize a buffer */ buf.p = buf.ptr = NULL; #if LWIP_CHECKSUM_ON_COPY buf.flags = 0; #endif /* LWIP_CHECKSUM_ON_COPY */ if (to) { SOCKADDR_TO_IPADDR_PORT(to, &buf.addr, remote_port); } else { #if ESP_LWIP /*fix the code for getting the UDP proto's remote information by liuh at 2014.8.27*/ if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_UDP){ if(NETCONNTYPE_ISIPV6(netconn_type(sock->conn))) { memcpy(&buf.addr.u_addr.ip6.addr, sock->conn->pcb.udp->remote_ip.u_addr.ip6.addr,16); remote_port = sock->conn->pcb.udp->remote_port; IP_SET_TYPE(&buf.addr, IPADDR_TYPE_V6); } else { buf.addr.u_addr.ip4.addr = sock->conn->pcb.udp->remote_ip.u_addr.ip4.addr; remote_port = sock->conn->pcb.udp->remote_port; IP_SET_TYPE(&buf.addr, IPADDR_TYPE_V4); } } else { #endif remote_port = 0; ip_addr_set_any(NETCONNTYPE_ISIPV6(netconn_type(sock->conn)), &buf.addr); #if ESP_LWIP } #endif } netbuf_fromport(&buf) = remote_port; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, short_size=%"U16_F", flags=0x%x to=", s, data, short_size, flags)); ip_addr_debug_print(SOCKETS_DEBUG, &buf.addr); LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F"\n", remote_port)); /* make the buffer point to the data that should be sent */ #if LWIP_NETIF_TX_SINGLE_PBUF /* Allocate a new netbuf and copy the data into it. */ if (netbuf_alloc(&buf, short_size) == NULL) { err = ERR_MEM; } else { #if LWIP_CHECKSUM_ON_COPY if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_RAW) { u16_t chksum = LWIP_CHKSUM_COPY(buf.p->payload, data, short_size); netbuf_set_chksum(&buf, chksum); } else #endif /* LWIP_CHECKSUM_ON_COPY */ { MEMCPY(buf.p->payload, data, short_size); } err = ERR_OK; } #else /* LWIP_NETIF_TX_SINGLE_PBUF */ err = netbuf_ref(&buf, data, short_size); #endif /* LWIP_NETIF_TX_SINGLE_PBUF */ if (err == ERR_OK) { /* send the data */ err = netconn_send(sock->conn, &buf); } /* deallocated the buffer */ netbuf_free(&buf); sock_set_errno(sock, err_to_errno(err)); return (err == ERR_OK ? short_size : -1); } int lwip_socket(int domain, int type, int protocol) { struct netconn *conn; int i; #if !LWIP_IPV6 LWIP_UNUSED_ARG(domain); /* @todo: check this */ #endif /* LWIP_IPV6 */ /* create a netconn */ switch (type) { case SOCK_RAW: conn = netconn_new_with_proto_and_callback(DOMAIN_TO_NETCONN_TYPE(domain, NETCONN_RAW), (u8_t)protocol, event_callback); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_RAW, %d) = ", domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); break; case SOCK_DGRAM: conn = netconn_new_with_callback(DOMAIN_TO_NETCONN_TYPE(domain, ((protocol == IPPROTO_UDPLITE) ? NETCONN_UDPLITE : NETCONN_UDP)) , event_callback); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_DGRAM, %d) = ", domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); break; case SOCK_STREAM: conn = netconn_new_with_callback(DOMAIN_TO_NETCONN_TYPE(domain, NETCONN_TCP), event_callback); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ", domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); if (conn != NULL) { /* Prevent automatic window updates, we do this on our own! */ netconn_set_noautorecved(conn, 1); } break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%d, %d/UNKNOWN, %d) = -1\n", domain, type, protocol)); set_errno(EINVAL); return -1; } if (!conn) { LWIP_DEBUGF(SOCKETS_DEBUG, ("-1 / ENOBUFS (could not create netconn)\n")); set_errno(ENOBUFS); return -1; } i = alloc_socket(conn, 0); if (i == -1) { netconn_delete(conn); set_errno(ENFILE); return -1; } conn->socket = i; LWIP_DEBUGF(SOCKETS_DEBUG, ("%d\n", i)); set_errno(0); return i; } int lwip_write(int s, const void *data, size_t size) { return lwip_send(s, data, size, 0); } int lwip_writev(int s, const struct iovec *iov, int iovcnt) { struct msghdr msg; msg.msg_name = NULL; msg.msg_namelen = 0; /* Hack: we have to cast via number to cast from 'const' pointer to non-const. Blame the opengroup standard for this inconsistency. */ msg.msg_iov = (struct iovec *)(size_t)iov; msg.msg_iovlen = iovcnt; msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_flags = 0; return lwip_sendmsg(s, &msg, 0); } /** * Go through the readset and writeset lists and see which socket of the sockets * set in the sets has events. On return, readset, writeset and exceptset have * the sockets enabled that had events. * * @param maxfdp1 the highest socket index in the sets * @param readset_in: set of sockets to check for read events * @param writeset_in: set of sockets to check for write events * @param exceptset_in: set of sockets to check for error events * @param readset_out: set of sockets that had read events * @param writeset_out: set of sockets that had write events * @param exceptset_out: set os sockets that had error events * @return number of sockets that had events (read/write/exception) (>= 0) */ static int lwip_selscan(int maxfdp1, fd_set *readset_in, fd_set *writeset_in, fd_set *exceptset_in, fd_set *readset_out, fd_set *writeset_out, fd_set *exceptset_out) { int i, nready = 0; fd_set lreadset, lwriteset, lexceptset; struct lwip_sock *sock; SYS_ARCH_DECL_PROTECT(lev); FD_ZERO(&lreadset); FD_ZERO(&lwriteset); FD_ZERO(&lexceptset); /* Go through each socket in each list to count number of sockets which currently match */ for (i = LWIP_SOCKET_OFFSET; i < maxfdp1; i++) { /* if this FD is not in the set, continue */ if (!(readset_in && FD_ISSET(i, readset_in)) && !(writeset_in && FD_ISSET(i, writeset_in)) && !(exceptset_in && FD_ISSET(i, exceptset_in))) { continue; } /* First get the socket's status (protected)... */ SYS_ARCH_PROTECT(lev); sock = tryget_socket(i); if (sock != NULL) { void* lastdata = sock->lastdata; s16_t rcvevent = sock->rcvevent; u16_t sendevent = sock->sendevent; u16_t errevent = sock->errevent; SYS_ARCH_UNPROTECT(lev); /* ... then examine it: */ /* See if netconn of this socket is ready for read */ if (readset_in && FD_ISSET(i, readset_in) && ((lastdata != NULL) || (rcvevent > 0))) { FD_SET(i, &lreadset); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i)); nready++; } /* See if netconn of this socket is ready for write */ if (writeset_in && FD_ISSET(i, writeset_in) && (sendevent != 0)) { FD_SET(i, &lwriteset); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i)); nready++; } /* See if netconn of this socket had an error */ if (exceptset_in && FD_ISSET(i, exceptset_in) && (errevent != 0)) { FD_SET(i, &lexceptset); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for exception\n", i)); nready++; } } else { SYS_ARCH_UNPROTECT(lev); /* continue on to next FD in list */ } } /* copy local sets to the ones provided as arguments */ *readset_out = lreadset; *writeset_out = lwriteset; *exceptset_out = lexceptset; LWIP_ASSERT("nready >= 0", nready >= 0); return nready; } int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, struct timeval *timeout) { u32_t waitres = 0; int nready; fd_set lreadset, lwriteset, lexceptset; u32_t msectimeout; struct lwip_select_cb select_cb; int i; int maxfdp2; #if LWIP_NETCONN_SEM_PER_THREAD int waited = 0; #endif SYS_ARCH_DECL_PROTECT(lev); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%"S32_F" tvusec=%"S32_F")\n", maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset, timeout ? (s32_t)timeout->tv_sec : (s32_t)-1, timeout ? (s32_t)timeout->tv_usec : (s32_t)-1)); /* Go through each socket in each list to count number of sockets which currently match */ nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset); /* If we don't have any current events, then suspend if we are supposed to */ if (!nready) { if (timeout && timeout->tv_sec == 0 && timeout->tv_usec == 0) { LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n")); /* This is OK as the local fdsets are empty and nready is zero, or we would have returned earlier. */ goto return_copy_fdsets; } /* None ready: add our semaphore to list: We don't actually need any dynamic memory. Our entry on the list is only valid while we are in this function, so it's ok to use local variables. */ select_cb.next = NULL; select_cb.prev = NULL; select_cb.readset = readset; select_cb.writeset = writeset; select_cb.exceptset = exceptset; select_cb.sem_signalled = 0; #if LWIP_NETCONN_SEM_PER_THREAD select_cb.sem = LWIP_NETCONN_THREAD_SEM_GET(); #else /* LWIP_NETCONN_SEM_PER_THREAD */ if (sys_sem_new(&select_cb.sem, 0) != ERR_OK) { /* failed to create semaphore */ set_errno(ENOMEM); return -1; } #endif /* LWIP_NETCONN_SEM_PER_THREAD */ /* Protect the select_cb_list */ SYS_ARCH_PROTECT(lev); /* Put this select_cb on top of list */ select_cb.next = select_cb_list; if (select_cb_list != NULL) { select_cb_list->prev = &select_cb; } select_cb_list = &select_cb; /* Increasing this counter tells event_callback that the list has changed. */ select_cb_ctr++; /* Now we can safely unprotect */ SYS_ARCH_UNPROTECT(lev); /* Increase select_waiting for each socket we are interested in */ maxfdp2 = maxfdp1; for (i = LWIP_SOCKET_OFFSET; i < maxfdp1; i++) { if ((readset && FD_ISSET(i, readset)) || (writeset && FD_ISSET(i, writeset)) || (exceptset && FD_ISSET(i, exceptset))) { struct lwip_sock *sock; SYS_ARCH_PROTECT(lev); sock = tryget_socket(i); if (sock != NULL) { sock->select_waiting++; LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0); } else { /* Not a valid socket */ nready = -1; maxfdp2 = i; SYS_ARCH_UNPROTECT(lev); break; } SYS_ARCH_UNPROTECT(lev); } } if (nready >= 0) { /* Call lwip_selscan again: there could have been events between the last scan (without us on the list) and putting us on the list! */ nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset); if (!nready) { /* Still none ready, just wait to be woken */ if (timeout == 0) { /* Wait forever */ msectimeout = 0; } else { msectimeout = ((timeout->tv_sec * 1000) + ((timeout->tv_usec + 500)/1000)); if (msectimeout == 0) { /* Wait 1ms at least (0 means wait forever) */ msectimeout = 1; } } waitres = sys_arch_sem_wait(SELECT_SEM_PTR(select_cb.sem), msectimeout); #if LWIP_NETCONN_SEM_PER_THREAD waited = 1; #endif } } /* Decrease select_waiting for each socket we are interested in */ for (i = LWIP_SOCKET_OFFSET; i < maxfdp2; i++) { if ((readset && FD_ISSET(i, readset)) || (writeset && FD_ISSET(i, writeset)) || (exceptset && FD_ISSET(i, exceptset))) { struct lwip_sock *sock; SYS_ARCH_PROTECT(lev); sock = tryget_socket(i); if (sock != NULL) { /* @todo: what if this is a new socket (reallocated?) in this case, select_waiting-- would be wrong (a global 'sockalloc' counter, stored per socket could help) */ LWIP_ASSERT("sock->select_waiting > 0", sock->select_waiting > 0); if (sock->select_waiting > 0) { sock->select_waiting--; } } else { /* Not a valid socket */ nready = -1; } SYS_ARCH_UNPROTECT(lev); } } /* Take us off the list */ SYS_ARCH_PROTECT(lev); if (select_cb.next != NULL) { select_cb.next->prev = select_cb.prev; } if (select_cb_list == &select_cb) { LWIP_ASSERT("select_cb.prev == NULL", select_cb.prev == NULL); select_cb_list = select_cb.next; } else { LWIP_ASSERT("select_cb.prev != NULL", select_cb.prev != NULL); select_cb.prev->next = select_cb.next; } /* Increasing this counter tells event_callback that the list has changed. */ select_cb_ctr++; SYS_ARCH_UNPROTECT(lev); #if LWIP_NETCONN_SEM_PER_THREAD if (select_cb.sem_signalled && (!waited || (waitres == SYS_ARCH_TIMEOUT))) { /* don't leave the thread-local semaphore signalled */ sys_arch_sem_wait(select_cb.sem, 1); } #else /* LWIP_NETCONN_SEM_PER_THREAD */ sys_sem_free(&select_cb.sem); #endif /* LWIP_NETCONN_SEM_PER_THREAD */ if (nready < 0) { /* This happens when a socket got closed while waiting */ set_errno(EBADF); return -1; } if (waitres == SYS_ARCH_TIMEOUT) { /* Timeout */ LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n")); /* This is OK as the local fdsets are empty and nready is zero, or we would have returned earlier. */ goto return_copy_fdsets; } /* See what's set */ nready = lwip_selscan(maxfdp1, readset, writeset, exceptset, &lreadset, &lwriteset, &lexceptset); } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready)); return_copy_fdsets: set_errno(0); if (readset) { *readset = lreadset; } if (writeset) { *writeset = lwriteset; } if (exceptset) { *exceptset = lexceptset; } return nready; } /** * Callback registered in the netconn layer for each socket-netconn. * Processes recvevent (data available) and wakes up tasks waiting for select. */ static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len) { int s; struct lwip_sock *sock; struct lwip_select_cb *scb; int last_select_cb_ctr; SYS_ARCH_DECL_PROTECT(lev); LWIP_UNUSED_ARG(len); /* Get socket */ if (conn) { s = conn->socket; if (s < 0) { /* Data comes in right away after an accept, even though * the server task might not have created a new socket yet. * Just count down (or up) if that's the case and we * will use the data later. Note that only receive events * can happen before the new socket is set up. */ SYS_ARCH_PROTECT(lev); if (conn->socket < 0) { if (evt == NETCONN_EVT_RCVPLUS) { conn->socket--; } SYS_ARCH_UNPROTECT(lev); return; } s = conn->socket; SYS_ARCH_UNPROTECT(lev); } sock = get_socket(s); if (!sock) { return; } } else { return; } SYS_ARCH_PROTECT(lev); /* Set event as required */ switch (evt) { case NETCONN_EVT_RCVPLUS: sock->rcvevent++; break; case NETCONN_EVT_RCVMINUS: sock->rcvevent--; break; case NETCONN_EVT_SENDPLUS: sock->sendevent = 1; break; case NETCONN_EVT_SENDMINUS: sock->sendevent = 0; break; case NETCONN_EVT_ERROR: sock->errevent = 1; break; default: LWIP_ASSERT("unknown event", 0); break; } if (sock->select_waiting == 0) { /* noone is waiting for this socket, no need to check select_cb_list */ SYS_ARCH_UNPROTECT(lev); return; } /* Now decide if anyone is waiting for this socket */ /* NOTE: This code goes through the select_cb_list list multiple times ONLY IF a select was actually waiting. We go through the list the number of waiting select calls + 1. This list is expected to be small. */ /* At this point, SYS_ARCH is still protected! */ again: for (scb = select_cb_list; scb != NULL; scb = scb->next) { /* remember the state of select_cb_list to detect changes */ last_select_cb_ctr = select_cb_ctr; if (scb->sem_signalled == 0) { /* semaphore not signalled yet */ int do_signal = 0; /* Test this select call for our socket */ if (sock->rcvevent > 0) { if (scb->readset && FD_ISSET(s, scb->readset)) { do_signal = 1; } } if (sock->sendevent != 0) { if (!do_signal && scb->writeset && FD_ISSET(s, scb->writeset)) { do_signal = 1; } } if (sock->errevent != 0) { if (!do_signal && scb->exceptset && FD_ISSET(s, scb->exceptset)) { do_signal = 1; } } if (do_signal) { scb->sem_signalled = 1; /* Don't call SYS_ARCH_UNPROTECT() before signaling the semaphore, as this might lead to the select thread taking itself off the list, invalidating the semaphore. */ sys_sem_signal(SELECT_SEM_PTR(scb->sem)); } } /* unlock interrupts with each step */ SYS_ARCH_UNPROTECT(lev); /* this makes sure interrupt protection time is short */ SYS_ARCH_PROTECT(lev); if (last_select_cb_ctr != select_cb_ctr) { /* someone has changed select_cb_list, restart at the beginning */ goto again; } } SYS_ARCH_UNPROTECT(lev); } /** * Unimplemented: Close one end of a full-duplex connection. * Currently, the full connection is closed. */ int lwip_shutdown(int s, int how) { #if ! ESP_LWIP struct lwip_sock *sock; err_t err; u8_t shut_rx = 0, shut_tx = 0; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how)); sock = get_socket(s); if (!sock) { return -1; } if (sock->conn != NULL) { if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { sock_set_errno(sock, EOPNOTSUPP); return -1; } } else { sock_set_errno(sock, ENOTCONN); return -1; } if (how == SHUT_RD) { shut_rx = 1; } else if (how == SHUT_WR) { shut_tx = 1; } else if (how == SHUT_RDWR) { shut_rx = 1; shut_tx = 1; } else { sock_set_errno(sock, EINVAL); return -1; } err = netconn_shutdown(sock->conn, shut_rx, shut_tx); sock_set_errno(sock, err_to_errno(err)); return (err == ERR_OK ? 0 : -1); #else return ERR_OK; #endif } static int lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local) { struct lwip_sock *sock; union sockaddr_aligned saddr; ip_addr_t naddr; u16_t port; err_t err; sock = get_socket(s); if (!sock) { return -1; } /* get the IP address and port */ /* @todo: this does not work for IPv6, yet */ err = netconn_getaddr(sock->conn, &naddr, &port, local); if (err != ERR_OK) { sock_set_errno(sock, err_to_errno(err)); return -1; } IPADDR_PORT_TO_SOCKADDR(&saddr, &naddr, port); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s)); ip_addr_debug_print_val(SOCKETS_DEBUG, naddr); LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F")\n", port)); if (*namelen > saddr.sa.sa_len) { *namelen = saddr.sa.sa_len; } MEMCPY(name, &saddr, *namelen); sock_set_errno(sock, 0); return 0; } int lwip_getpeername(int s, struct sockaddr *name, socklen_t *namelen) { return lwip_getaddrname(s, name, namelen, 0); } int lwip_getsockname(int s, struct sockaddr *name, socklen_t *namelen) { return lwip_getaddrname(s, name, namelen, 1); } int lwip_getsockopt(int s, int level, int optname, void *optval, socklen_t *optlen) { u8_t err; struct lwip_sock *sock = get_socket(s); #if !LWIP_TCPIP_CORE_LOCKING LWIP_SETGETSOCKOPT_DATA_VAR_DECLARE(data); #endif /* !LWIP_TCPIP_CORE_LOCKING */ if (!sock) { return -1; } if ((NULL == optval) || (NULL == optlen)) { sock_set_errno(sock, EFAULT); return -1; } #if LWIP_TCPIP_CORE_LOCKING /* core-locking can just call the -impl function */ LOCK_TCPIP_CORE(); err = lwip_getsockopt_impl(s, level, optname, optval, optlen); UNLOCK_TCPIP_CORE(); #else /* LWIP_TCPIP_CORE_LOCKING */ #if LWIP_MPU_COMPATIBLE /* MPU_COMPATIBLE copies the optval data, so check for max size here */ if (*optlen > LWIP_SETGETSOCKOPT_MAXOPTLEN) { sock_set_errno(sock, ENOBUFS); return -1; } #endif /* LWIP_MPU_COMPATIBLE */ LWIP_SETGETSOCKOPT_DATA_VAR_ALLOC(data, sock); LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).s = s; LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).level = level; LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optname = optname; LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optlen = *optlen; #if !LWIP_MPU_COMPATIBLE LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optval.p = optval; #endif /* !LWIP_MPU_COMPATIBLE */ LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).err = 0; #if LWIP_NETCONN_SEM_PER_THREAD LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).completed_sem = LWIP_NETCONN_THREAD_SEM_GET(); #else LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).completed_sem = &sock->conn->op_completed; #endif err = tcpip_callback(lwip_getsockopt_callback, &LWIP_SETGETSOCKOPT_DATA_VAR_REF(data)); if (err != ERR_OK) { LWIP_SETGETSOCKOPT_DATA_VAR_FREE(data); sock_set_errno(sock, err_to_errno(err)); return -1; } sys_arch_sem_wait((sys_sem_t*)(LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).completed_sem), 0); /* write back optlen and optval */ *optlen = LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optlen; #if LWIP_MPU_COMPATIBLE memcpy(optval, LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optval, LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optlen); #endif /* LWIP_MPU_COMPATIBLE */ /* maybe lwip_getsockopt_internal has changed err */ err = LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).err; LWIP_SETGETSOCKOPT_DATA_VAR_FREE(data); #endif /* LWIP_TCPIP_CORE_LOCKING */ sock_set_errno(sock, err); return err ? -1 : 0; } #if !LWIP_TCPIP_CORE_LOCKING /** lwip_getsockopt_callback: only used without CORE_LOCKING * to get into the tcpip_thread */ static void lwip_getsockopt_callback(void *arg) { struct lwip_setgetsockopt_data *data; LWIP_ASSERT("arg != NULL", arg != NULL); data = (struct lwip_setgetsockopt_data*)arg; data->err = lwip_getsockopt_impl(data->s, data->level, data->optname, #if LWIP_MPU_COMPATIBLE data->optval, #else /* LWIP_MPU_COMPATIBLE */ data->optval.p, #endif /* LWIP_MPU_COMPATIBLE */ &data->optlen); sys_sem_signal((sys_sem_t*)(data->completed_sem)); } #endif /* LWIP_TCPIP_CORE_LOCKING */ /** lwip_getsockopt_impl: the actual implementation of getsockopt: * same argument as lwip_getsockopt, either called directly or through callback */ static u8_t lwip_getsockopt_impl(int s, int level, int optname, void *optval, socklen_t *optlen) { u8_t err = 0; struct lwip_sock *sock = tryget_socket(s); if (!sock) { return EBADF; } switch (level) { /* Level: SOL_SOCKET */ case SOL_SOCKET: switch (optname) { #if LWIP_TCP case SO_ACCEPTCONN: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, int); if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_TCP) { return ENOPROTOOPT; } if ((sock->conn->pcb.tcp != NULL) && (sock->conn->pcb.tcp->state == LISTEN)) { *(int*)optval = 1; } else { *(int*)optval = 0; } break; #endif /* LWIP_TCP */ /* The option flags */ case SO_BROADCAST: case SO_KEEPALIVE: #if SO_REUSE case SO_REUSEADDR: #endif /* SO_REUSE */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, int); *(int*)optval = ip_get_option(sock->conn->pcb.ip, optname); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, optname=0x%x, ..) = %s\n", s, optname, (*(int*)optval?"on":"off"))); break; case SO_TYPE: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, *optlen, int); switch (NETCONNTYPE_GROUP(netconn_type(sock->conn))) { case NETCONN_RAW: *(int*)optval = SOCK_RAW; break; case NETCONN_TCP: *(int*)optval = SOCK_STREAM; break; case NETCONN_UDP: *(int*)optval = SOCK_DGRAM; break; default: /* unrecognized socket type */ *(int*)optval = netconn_type(sock->conn); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n", s, *(int *)optval)); } /* switch (netconn_type(sock->conn)) */ LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n", s, *(int *)optval)); break; case SO_ERROR: LWIP_SOCKOPT_CHECK_OPTLEN(*optlen, int); /* only overwrite ERR_OK or temporary errors */ if (((sock->err == 0) || (sock->err == EINPROGRESS)) && (sock->conn != NULL)) { sock_set_errno(sock, err_to_errno(sock->conn->last_err)); } *(int *)optval = (sock->err == 0xFF ? (int)-1 : (int)sock->err); sock->err = 0; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_ERROR) = %d\n", s, *(int *)optval)); break; #if LWIP_SO_SNDTIMEO case SO_SNDTIMEO: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, *optlen, LWIP_SO_SNDRCVTIMEO_OPTTYPE); LWIP_SO_SNDRCVTIMEO_SET(optval, netconn_get_sendtimeout(sock->conn)); break; #endif /* LWIP_SO_SNDTIMEO */ #if LWIP_SO_RCVTIMEO case SO_RCVTIMEO: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, *optlen, LWIP_SO_SNDRCVTIMEO_OPTTYPE); LWIP_SO_SNDRCVTIMEO_SET(optval, netconn_get_recvtimeout(sock->conn)); break; #endif /* LWIP_SO_RCVTIMEO */ #if LWIP_SO_RCVBUF case SO_RCVBUF: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, *optlen, int); *(int *)optval = netconn_get_recvbufsize(sock->conn); break; #endif /* LWIP_SO_RCVBUF */ #if LWIP_SO_LINGER case SO_LINGER: { s16_t conn_linger; struct linger* linger = (struct linger*)optval; LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, *optlen, struct linger); conn_linger = sock->conn->linger; if (conn_linger >= 0) { linger->l_onoff = 1; linger->l_linger = (int)conn_linger; } else { linger->l_onoff = 0; linger->l_linger = 0; } } break; #endif /* LWIP_SO_LINGER */ #if LWIP_UDP case SO_NO_CHECK: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, *optlen, int, NETCONN_UDP); #if LWIP_UDPLITE if ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0) { /* this flag is only available for UDP, not for UDP lite */ return EAFNOSUPPORT; } #endif /* LWIP_UDPLITE */ *(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0; break; #endif /* LWIP_UDP*/ default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; /* Level: IPPROTO_IP */ case IPPROTO_IP: switch (optname) { case IP_TTL: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, int); *(int*)optval = sock->conn->pcb.ip->ttl; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TTL) = %d\n", s, *(int *)optval)); break; case IP_TOS: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, int); *(int*)optval = sock->conn->pcb.ip->tos; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_TOS) = %d\n", s, *(int *)optval)); break; #if LWIP_MULTICAST_TX_OPTIONS case IP_MULTICAST_TTL: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, u8_t); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_UDP) { return ENOPROTOOPT; } *(u8_t*)optval = sock->conn->pcb.udp->mcast_ttl; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n", s, *(int *)optval)); break; case IP_MULTICAST_IF: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, struct in_addr); if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_UDP) { return ENOPROTOOPT; } inet_addr_from_ipaddr((struct in_addr*)optval, udp_get_multicast_netif_addr(sock->conn->pcb.udp)); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%"X32_F"\n", s, *(u32_t *)optval)); break; case IP_MULTICAST_LOOP: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, u8_t); if ((sock->conn->pcb.udp->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) { *(u8_t*)optval = 1; } else { *(u8_t*)optval = 0; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_LOOP) = %d\n", s, *(int *)optval)); break; #endif /* LWIP_MULTICAST_TX_OPTIONS */ default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #if LWIP_TCP /* Level: IPPROTO_TCP */ case IPPROTO_TCP: /* Special case: all IPPROTO_TCP option take an int */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, *optlen, int, NETCONN_TCP); switch (optname) { case TCP_NODELAY: *(int*)optval = tcp_nagle_disabled(sock->conn->pcb.tcp); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_NODELAY) = %s\n", s, (*(int*)optval)?"on":"off") ); break; case TCP_KEEPALIVE: *(int*)optval = (int)sock->conn->pcb.tcp->keep_idle; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) = %d\n", s, *(int *)optval)); break; #if LWIP_TCP_KEEPALIVE case TCP_KEEPIDLE: *(int*)optval = (int)(sock->conn->pcb.tcp->keep_idle/1000); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) = %d\n", s, *(int *)optval)); break; case TCP_KEEPINTVL: *(int*)optval = (int)(sock->conn->pcb.tcp->keep_intvl/1000); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) = %d\n", s, *(int *)optval)); break; case TCP_KEEPCNT: *(int*)optval = (int)sock->conn->pcb.tcp->keep_cnt; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) = %d\n", s, *(int *)optval)); break; #endif /* LWIP_TCP_KEEPALIVE */ #if ESP_PER_SOC_TCP_WND case TCP_WINDOW: *(int*)optval = (int)sock->conn->pcb.tcp->per_soc_tcp_wnd; break; case TCP_SNDBUF: *(int*)optval = (int)sock->conn->pcb.tcp->per_soc_tcp_snd_buf; break; #endif default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #endif /* LWIP_TCP */ #if LWIP_IPV6 /* Level: IPPROTO_IPV6 */ case IPPROTO_IPV6: switch (optname) { case IPV6_V6ONLY: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, *optlen, int); /* @todo: this does not work for datagram sockets, yet */ if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { return ENOPROTOOPT; } *(int*)optval = (netconn_get_ipv6only(sock->conn) ? 1 : 0); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IPV6, IPV6_V6ONLY) = %d\n", s, *(int *)optval)); break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IPV6, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #endif /* LWIP_IPV6 */ #if LWIP_UDP && LWIP_UDPLITE /* Level: IPPROTO_UDPLITE */ case IPPROTO_UDPLITE: /* Special case: all IPPROTO_UDPLITE option take an int */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, *optlen, int); /* If this is no UDP lite socket, ignore any options. */ if (!NETCONNTYPE_ISUDPLITE(netconn_type(sock->conn))) { return ENOPROTOOPT; } switch (optname) { case UDPLITE_SEND_CSCOV: *(int*)optval = sock->conn->pcb.udp->chksum_len_tx; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) = %d\n", s, (*(int*)optval)) ); break; case UDPLITE_RECV_CSCOV: *(int*)optval = sock->conn->pcb.udp->chksum_len_rx; LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) = %d\n", s, (*(int*)optval)) ); break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #endif /* LWIP_UDP */ /* Level: IPPROTO_RAW */ case IPPROTO_RAW: switch (optname) { #if LWIP_IPV6 && LWIP_RAW case IPV6_CHECKSUM: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, *optlen, int, NETCONN_RAW); if (sock->conn->pcb.raw->chksum_reqd == 0) { *(int *)optval = -1; } else { *(int *)optval = sock->conn->pcb.raw->chksum_offset; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_RAW, IPV6_CHECKSUM) = %d\n", s, (*(int*)optval)) ); break; #endif /* LWIP_IPV6 && LWIP_RAW */ default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_RAW, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n", s, level, optname)); err = ENOPROTOOPT; break; } /* switch (level) */ return err; } int lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen) { u8_t err = 0; struct lwip_sock *sock = get_socket(s); #if !LWIP_TCPIP_CORE_LOCKING LWIP_SETGETSOCKOPT_DATA_VAR_DECLARE(data); #endif /* !LWIP_TCPIP_CORE_LOCKING */ if (!sock) { return -1; } if (NULL == optval) { sock_set_errno(sock, EFAULT); return -1; } #if LWIP_TCPIP_CORE_LOCKING /* core-locking can just call the -impl function */ LOCK_TCPIP_CORE(); err = lwip_setsockopt_impl(s, level, optname, optval, optlen); UNLOCK_TCPIP_CORE(); #else /* LWIP_TCPIP_CORE_LOCKING */ #if LWIP_MPU_COMPATIBLE /* MPU_COMPATIBLE copies the optval data, so check for max size here */ if (optlen > LWIP_SETGETSOCKOPT_MAXOPTLEN) { sock_set_errno(sock, ENOBUFS); return -1; } #endif /* LWIP_MPU_COMPATIBLE */ LWIP_SETGETSOCKOPT_DATA_VAR_ALLOC(data, sock); LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).s = s; LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).level = level; LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optname = optname; LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optlen = optlen; #if LWIP_MPU_COMPATIBLE memcpy(LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optval, optval, optlen); #else /* LWIP_MPU_COMPATIBLE */ LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).optval.pc = (const void*)optval; #endif /* LWIP_MPU_COMPATIBLE */ LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).err = 0; #if LWIP_NETCONN_SEM_PER_THREAD LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).completed_sem = LWIP_NETCONN_THREAD_SEM_GET(); #else LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).completed_sem = &sock->conn->op_completed; #endif err = tcpip_callback(lwip_setsockopt_callback, &LWIP_SETGETSOCKOPT_DATA_VAR_REF(data)); if (err != ERR_OK) { LWIP_SETGETSOCKOPT_DATA_VAR_FREE(data); sock_set_errno(sock, err_to_errno(err)); return -1; } sys_arch_sem_wait((sys_sem_t*)(LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).completed_sem), 0); /* maybe lwip_getsockopt_internal has changed err */ err = LWIP_SETGETSOCKOPT_DATA_VAR_REF(data).err; LWIP_SETGETSOCKOPT_DATA_VAR_FREE(data); #endif /* LWIP_TCPIP_CORE_LOCKING */ sock_set_errno(sock, err); return err ? -1 : 0; } #if !LWIP_TCPIP_CORE_LOCKING /** lwip_setsockopt_callback: only used without CORE_LOCKING * to get into the tcpip_thread */ static void lwip_setsockopt_callback(void *arg) { struct lwip_setgetsockopt_data *data; LWIP_ASSERT("arg != NULL", arg != NULL); data = (struct lwip_setgetsockopt_data*)arg; data->err = lwip_setsockopt_impl(data->s, data->level, data->optname, #if LWIP_MPU_COMPATIBLE data->optval, #else /* LWIP_MPU_COMPATIBLE */ data->optval.pc, #endif /* LWIP_MPU_COMPATIBLE */ data->optlen); sys_sem_signal((sys_sem_t*)(data->completed_sem)); } #endif /* LWIP_TCPIP_CORE_LOCKING */ /** lwip_setsockopt_impl: the actual implementation of setsockopt: * same argument as lwip_setsockopt, either called directly or through callback */ static u8_t lwip_setsockopt_impl(int s, int level, int optname, const void *optval, socklen_t optlen) { u8_t err = 0; struct lwip_sock *sock = tryget_socket(s); if (!sock) { return EBADF; } switch (level) { /* Level: SOL_SOCKET */ case SOL_SOCKET: switch (optname) { /* SO_ACCEPTCONN is get-only */ /* The option flags */ case SO_BROADCAST: case SO_KEEPALIVE: #if SO_REUSE case SO_REUSEADDR: #endif /* SO_REUSE */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, int); if (*(const int*)optval) { ip_set_option(sock->conn->pcb.ip, optname); } else { ip_reset_option(sock->conn->pcb.ip, optname); } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n", s, optname, (*(const int*)optval?"on":"off"))); break; /* SO_TYPE is get-only */ /* SO_ERROR is get-only */ #if LWIP_SO_SNDTIMEO case SO_SNDTIMEO: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, optlen, LWIP_SO_SNDRCVTIMEO_OPTTYPE); netconn_set_sendtimeout(sock->conn, LWIP_SO_SNDRCVTIMEO_GET_MS(optval)); break; #endif /* LWIP_SO_SNDTIMEO */ #if LWIP_SO_RCVTIMEO case SO_RCVTIMEO: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, optlen, LWIP_SO_SNDRCVTIMEO_OPTTYPE); netconn_set_recvtimeout(sock->conn, (int)LWIP_SO_SNDRCVTIMEO_GET_MS(optval)); break; #endif /* LWIP_SO_RCVTIMEO */ #if LWIP_SO_RCVBUF case SO_RCVBUF: LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, optlen, int); netconn_set_recvbufsize(sock->conn, *(const int*)optval); break; #endif /* LWIP_SO_RCVBUF */ #if LWIP_SO_LINGER case SO_LINGER: { const struct linger* linger = (const struct linger*)optval; LWIP_SOCKOPT_CHECK_OPTLEN_CONN(sock, optlen, struct linger); if (linger->l_onoff) { int lingersec = linger->l_linger; if (lingersec < 0) { return EINVAL; } if (lingersec > 0xFFFF) { lingersec = 0xFFFF; } sock->conn->linger = (s16_t)lingersec; } else { sock->conn->linger = -1; } } break; #endif /* LWIP_SO_LINGER */ #if LWIP_UDP case SO_NO_CHECK: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, int, NETCONN_UDP); #if LWIP_UDPLITE if ((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0) { /* this flag is only available for UDP, not for UDP lite */ return EAFNOSUPPORT; } #endif /* LWIP_UDPLITE */ if (*(const int*)optval) { udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_NOCHKSUM); } else { udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_NOCHKSUM); } break; #endif /* LWIP_UDP */ default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; /* Level: IPPROTO_IP */ case IPPROTO_IP: switch (optname) { case IP_TTL: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, int); sock->conn->pcb.ip->ttl = (u8_t)(*(const int*)optval); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %d\n", s, sock->conn->pcb.ip->ttl)); break; case IP_TOS: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, int); sock->conn->pcb.ip->tos = (u8_t)(*(const int*)optval); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %d\n", s, sock->conn->pcb.ip->tos)); break; #if LWIP_MULTICAST_TX_OPTIONS case IP_MULTICAST_TTL: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, u8_t, NETCONN_UDP); sock->conn->pcb.udp->mcast_ttl = (u8_t)(*(const u8_t*)optval); break; case IP_MULTICAST_IF: { ip4_addr_t if_addr; LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, struct in_addr, NETCONN_UDP); inet_addr_to_ipaddr(&if_addr, (const struct in_addr*)optval); udp_set_multicast_netif_addr(sock->conn->pcb.udp, &if_addr); } break; case IP_MULTICAST_LOOP: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, u8_t, NETCONN_UDP); if (*(const u8_t*)optval) { udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) | UDP_FLAGS_MULTICAST_LOOP); } else { udp_setflags(sock->conn->pcb.udp, udp_flags(sock->conn->pcb.udp) & ~UDP_FLAGS_MULTICAST_LOOP); } break; #endif /* LWIP_MULTICAST_TX_OPTIONS */ #if LWIP_IGMP case IP_ADD_MEMBERSHIP: case IP_DROP_MEMBERSHIP: { /* If this is a TCP or a RAW socket, ignore these options. */ /* @todo: assign membership to this socket so that it is dropped when state the socket */ err_t igmp_err; const struct ip_mreq *imr = (const struct ip_mreq *)optval; ip4_addr_t if_addr; ip4_addr_t multi_addr; LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, struct ip_mreq, NETCONN_UDP); inet_addr_to_ipaddr(&if_addr, &imr->imr_interface); inet_addr_to_ipaddr(&multi_addr, &imr->imr_multiaddr); if (optname == IP_ADD_MEMBERSHIP) { if (!lwip_socket_register_membership(s, &if_addr, &multi_addr)) { /* cannot track membership (out of memory) */ err = ENOMEM; igmp_err = ERR_OK; } else { igmp_err = igmp_joingroup(&if_addr, &multi_addr); } } else { igmp_err = igmp_leavegroup(&if_addr, &multi_addr); lwip_socket_unregister_membership(s, &if_addr, &multi_addr); } if (igmp_err != ERR_OK) { err = EADDRNOTAVAIL; } } break; #endif /* LWIP_IGMP */ default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #if LWIP_TCP /* Level: IPPROTO_TCP */ case IPPROTO_TCP: /* Special case: all IPPROTO_TCP option take an int */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, int, NETCONN_TCP); switch (optname) { case TCP_NODELAY: if (*(const int*)optval) { tcp_nagle_disable(sock->conn->pcb.tcp); } else { tcp_nagle_enable(sock->conn->pcb.tcp); } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n", s, (*(const int *)optval)?"on":"off") ); break; case TCP_KEEPALIVE: sock->conn->pcb.tcp->keep_idle = (u32_t)(*(const int*)optval); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %"U32_F"\n", s, sock->conn->pcb.tcp->keep_idle)); break; #if LWIP_TCP_KEEPALIVE case TCP_KEEPIDLE: sock->conn->pcb.tcp->keep_idle = 1000*(u32_t)(*(const int*)optval); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %"U32_F"\n", s, sock->conn->pcb.tcp->keep_idle)); break; case TCP_KEEPINTVL: sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(const int*)optval); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %"U32_F"\n", s, sock->conn->pcb.tcp->keep_intvl)); break; case TCP_KEEPCNT: sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(const int*)optval); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %"U32_F"\n", s, sock->conn->pcb.tcp->keep_cnt)); break; #endif /* LWIP_TCP_KEEPALIVE */ #if ESP_PER_SOC_TCP_WND case TCP_WINDOW: sock->conn->pcb.tcp->per_soc_tcp_wnd = ((u32_t)(*(const int*)optval)) * TCP_MSS; break; case TCP_SNDBUF: sock->conn->pcb.tcp->per_soc_tcp_snd_buf = ((u32_t)(*(const int*)optval)) * TCP_MSS; break; #endif default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #endif /* LWIP_TCP*/ #if LWIP_IPV6 /* Level: IPPROTO_IPV6 */ case IPPROTO_IPV6: switch (optname) { case IPV6_V6ONLY: /* @todo: this does not work for datagram sockets, yet */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, int, NETCONN_TCP); if (*(const int*)optval) { netconn_set_ipv6only(sock->conn, 1); } else { netconn_set_ipv6only(sock->conn, 0); } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IPV6, IPV6_V6ONLY, ..) -> %d\n", s, (netconn_get_ipv6only(sock->conn) ? 1 : 0))); break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IPV6, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #endif /* LWIP_IPV6 */ #if LWIP_UDP && LWIP_UDPLITE /* Level: IPPROTO_UDPLITE */ case IPPROTO_UDPLITE: /* Special case: all IPPROTO_UDPLITE option take an int */ LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB(sock, optlen, int); /* If this is no UDP lite socket, ignore any options. */ if (!NETCONNTYPE_ISUDPLITE(netconn_type(sock->conn))) { return ENOPROTOOPT; } switch (optname) { case UDPLITE_SEND_CSCOV: if ((*(const int*)optval != 0) && ((*(const int*)optval < 8) || (*(const int*)optval > 0xffff))) { /* don't allow illegal values! */ sock->conn->pcb.udp->chksum_len_tx = 8; } else { sock->conn->pcb.udp->chksum_len_tx = (u16_t)*(const int*)optval; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n", s, (*(const int*)optval)) ); break; case UDPLITE_RECV_CSCOV: if ((*(const int*)optval != 0) && ((*(const int*)optval < 8) || (*(const int*)optval > 0xffff))) { /* don't allow illegal values! */ sock->conn->pcb.udp->chksum_len_rx = 8; } else { sock->conn->pcb.udp->chksum_len_rx = (u16_t)*(const int*)optval; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n", s, (*(const int*)optval)) ); break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; #endif /* LWIP_UDP */ /* Level: IPPROTO_RAW */ case IPPROTO_RAW: switch (optname) { #if LWIP_IPV6 && LWIP_RAW case IPV6_CHECKSUM: LWIP_SOCKOPT_CHECK_OPTLEN_CONN_PCB_TYPE(sock, optlen, int, NETCONN_RAW); if (*(const int *)optval < 0) { sock->conn->pcb.raw->chksum_reqd = 0; } else if (*(const int *)optval & 1) { /* Per RFC3542, odd offsets are not allowed */ return EINVAL; } else { sock->conn->pcb.raw->chksum_reqd = 1; sock->conn->pcb.raw->chksum_offset = (u16_t)*(const int *)optval; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_RAW, IPV6_CHECKSUM, ..) -> %d\n", s, sock->conn->pcb.raw->chksum_reqd)); break; #endif /* LWIP_IPV6 && LWIP_RAW */ default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_RAW, UNIMPL: optname=0x%x, ..)\n", s, optname)); err = ENOPROTOOPT; break; } /* switch (optname) */ break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n", s, level, optname)); err = ENOPROTOOPT; break; } /* switch (level) */ return err; } int lwip_ioctl(int s, long cmd, void *argp) { struct lwip_sock *sock = get_socket(s); u8_t val; #if LWIP_SO_RCVBUF u16_t buflen = 0; int recv_avail; #endif /* LWIP_SO_RCVBUF */ if (!sock) { return -1; } switch (cmd) { #if LWIP_SO_RCVBUF || LWIP_FIONREAD_LINUXMODE case FIONREAD: if (!argp) { sock_set_errno(sock, EINVAL); return -1; } #if LWIP_FIONREAD_LINUXMODE if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { struct pbuf *p; if (sock->lastdata) { p = ((struct netbuf *)sock->lastdata)->p; *((int*)argp) = p->tot_len - sock->lastoffset; } else { struct netbuf *rxbuf; err_t err; if (sock->rcvevent <= 0) { *((int*)argp) = 0; } else { err = netconn_recv(sock->conn, &rxbuf); if (err != ERR_OK) { *((int*)argp) = 0; } else { sock->lastdata = rxbuf; sock->lastoffset = 0; *((int*)argp) = rxbuf->p->tot_len; } } } return 0; } #endif /* LWIP_FIONREAD_LINUXMODE */ #if LWIP_SO_RCVBUF /* we come here if either LWIP_FIONREAD_LINUXMODE==0 or this is a TCP socket */ SYS_ARCH_GET(sock->conn->recv_avail, recv_avail); if (recv_avail < 0) { recv_avail = 0; } *((int*)argp) = recv_avail; /* Check if there is data left from the last recv operation. /maq 041215 */ if (sock->lastdata) { struct pbuf *p = (struct pbuf *)sock->lastdata; if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) != NETCONN_TCP) { p = ((struct netbuf *)p)->p; } buflen = p->tot_len; buflen -= sock->lastoffset; *((int*)argp) += buflen; } LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %"U16_F"\n", s, argp, *((u16_t*)argp))); sock_set_errno(sock, 0); return 0; #else /* LWIP_SO_RCVBUF */ break; #endif /* LWIP_SO_RCVBUF */ #endif /* LWIP_SO_RCVBUF || LWIP_FIONREAD_LINUXMODE */ case (long)FIONBIO: val = 0; if (argp && *(u32_t*)argp) { val = 1; } netconn_set_nonblocking(sock->conn, val); LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, val)); sock_set_errno(sock, 0); return 0; default: break; } /* switch (cmd) */ LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, UNIMPL: 0x%lx, %p)\n", s, cmd, argp)); sock_set_errno(sock, ENOSYS); /* not yet implemented */ return -1; } /** A minimal implementation of fcntl. * Currently only the commands F_GETFL and F_SETFL are implemented. * Only the flag O_NONBLOCK is implemented. */ int lwip_fcntl(int s, int cmd, int val) { struct lwip_sock *sock = get_socket(s); int ret = -1; if (!sock) { return -1; } switch (cmd) { case F_GETFL: ret = netconn_is_nonblocking(sock->conn) ? O_NONBLOCK : 0; sock_set_errno(sock, 0); break; case F_SETFL: if ((val & ~O_NONBLOCK) == 0) { /* only O_NONBLOCK, all other bits are zero */ netconn_set_nonblocking(sock->conn, val & O_NONBLOCK); ret = 0; sock_set_errno(sock, 0); } else { sock_set_errno(sock, ENOSYS); /* not yet implemented */ } break; default: LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_fcntl(%d, UNIMPL: %d, %d)\n", s, cmd, val)); sock_set_errno(sock, ENOSYS); /* not yet implemented */ break; } return ret; } #if LWIP_IGMP /** Register a new IGMP membership. On socket close, the membership is dropped automatically. * * ATTENTION: this function is called from tcpip_thread (or under CORE_LOCK). * * @return 1 on success, 0 on failure */ static int lwip_socket_register_membership(int s, const ip4_addr_t *if_addr, const ip4_addr_t *multi_addr) { /* s+1 is stored in the array to prevent having to initialize the array (default initialization is to 0) */ int sa = s + 1; int i; for (i = 0; i < LWIP_SOCKET_MAX_MEMBERSHIPS; i++) { if (socket_ipv4_multicast_memberships[i].sa == 0) { socket_ipv4_multicast_memberships[i].sa = sa; ip4_addr_copy(socket_ipv4_multicast_memberships[i].if_addr, *if_addr); ip4_addr_copy(socket_ipv4_multicast_memberships[i].multi_addr, *multi_addr); return 1; } } return 0; } /** Unregister a previously registered membership. This prevents dropping the membership * on socket close. * * ATTENTION: this function is called from tcpip_thread (or under CORE_LOCK). */ static void lwip_socket_unregister_membership(int s, const ip4_addr_t *if_addr, const ip4_addr_t *multi_addr) { /* s+1 is stored in the array to prevent having to initialize the array (default initialization is to 0) */ int sa = s + 1; int i; for (i = 0; i < LWIP_SOCKET_MAX_MEMBERSHIPS; i++) { if ((socket_ipv4_multicast_memberships[i].sa == sa) && ip4_addr_cmp(&socket_ipv4_multicast_memberships[i].if_addr, if_addr) && ip4_addr_cmp(&socket_ipv4_multicast_memberships[i].multi_addr, multi_addr)) { socket_ipv4_multicast_memberships[i].sa = 0; ip4_addr_set_zero(&socket_ipv4_multicast_memberships[i].if_addr); ip4_addr_set_zero(&socket_ipv4_multicast_memberships[i].multi_addr); return; } } } /** Drop all memberships of a socket that were not dropped explicitly via setsockopt. * * ATTENTION: this function is NOT called from tcpip_thread (or under CORE_LOCK). */ static void lwip_socket_drop_registered_memberships(int s) { /* s+1 is stored in the array to prevent having to initialize the array (default initialization is to 0) */ int sa = s + 1; int i; LWIP_ASSERT("socket has no netconn", sockets[s].conn != NULL); for (i = 0; i < LWIP_SOCKET_MAX_MEMBERSHIPS; i++) { if (socket_ipv4_multicast_memberships[i].sa == sa) { ip_addr_t multi_addr, if_addr; ip_addr_copy_from_ip4(multi_addr, socket_ipv4_multicast_memberships[i].multi_addr); ip_addr_copy_from_ip4(if_addr, socket_ipv4_multicast_memberships[i].if_addr); socket_ipv4_multicast_memberships[i].sa = 0; ip4_addr_set_zero(&socket_ipv4_multicast_memberships[i].if_addr); ip4_addr_set_zero(&socket_ipv4_multicast_memberships[i].multi_addr); netconn_join_leave_group(sockets[s].conn, &multi_addr, &if_addr, NETCONN_LEAVE); } } } #endif /* LWIP_IGMP */ #if ESP_THREAD_SAFE int lwip_sendto_r(int s, const void *data, size_t size, int flags, const struct sockaddr *to, socklen_t tolen) { LWIP_API_LOCK(); __ret = lwip_sendto(s, data, size, flags, to, tolen); LWIP_API_UNLOCK(); } int lwip_send_r(int s, const void *data, size_t size, int flags) { LWIP_API_LOCK(); __ret = lwip_send(s, data, size, flags); LWIP_API_UNLOCK(); } int lwip_recvfrom_r(int s, void *mem, size_t len, int flags, struct sockaddr *from, socklen_t *fromlen) { LWIP_API_LOCK(); __ret = lwip_recvfrom(s, mem, len, flags, from, fromlen); LWIP_API_UNLOCK(); } int lwip_recv_r(int s, void *mem, size_t len, int flags) { return lwip_recvfrom_r(s, mem, len, flags, NULL, NULL); } int lwip_read_r(int s, void *mem, size_t len) { return lwip_recvfrom_r(s, mem, len, 0, NULL, NULL); } int lwip_sendmsg_r(int s, const struct msghdr *msg, int flags) { LWIP_API_LOCK(); __ret = lwip_sendmsg(s, msg, flags); LWIP_API_UNLOCK(); } int lwip_write_r(int s, const void *data, size_t size) { return lwip_send_r(s, data, size, 0); } int lwip_writev_r(int s, const struct iovec *iov, int iovcnt) { struct msghdr msg; msg.msg_name = NULL; msg.msg_namelen = 0; /* Hack: we have to cast via number to cast from 'const' pointer to non-const. Blame the opengroup standard for this inconsistency. */ msg.msg_iov = (struct iovec *)(size_t)iov; msg.msg_iovlen = iovcnt; msg.msg_control = NULL; msg.msg_controllen = 0; msg.msg_flags = 0; return lwip_sendmsg_r(s, &msg, 0); } int lwip_connect_r(int s, const struct sockaddr *name, socklen_t namelen) { LWIP_API_LOCK(); __ret = lwip_connect(s, name, namelen); LWIP_API_UNLOCK(); } int lwip_listen_r(int s, int backlog) { LWIP_API_LOCK(); __ret = lwip_listen(s, backlog); LWIP_API_UNLOCK(); } int lwip_bind_r(int s, const struct sockaddr *name, socklen_t namelen) { LWIP_API_LOCK(); __ret = lwip_bind(s, name, namelen); LWIP_API_UNLOCK(); } int lwip_accept_r(int s, struct sockaddr *addr, socklen_t *addrlen) { LWIP_API_LOCK(); __ret = lwip_accept(s, addr, addrlen); LWIP_API_UNLOCK(); } int lwip_ioctl_r(int s, long cmd, void *argp) { LWIP_API_LOCK(); __ret = lwip_ioctl(s, cmd, argp); LWIP_API_UNLOCK(); } int lwip_fcntl_r(int s, int cmd, int val) { LWIP_API_LOCK(); __ret = lwip_fcntl(s, cmd, val); LWIP_API_UNLOCK(); } int lwip_setsockopt_r(int s, int level, int optname, const void *optval, socklen_t optlen) { LWIP_API_LOCK(); __ret = lwip_setsockopt(s, level, optname, optval, optlen); LWIP_API_UNLOCK(); } int lwip_getsockopt_r(int s, int level, int optname, void *optval, socklen_t *optlen) { LWIP_API_LOCK(); __ret = lwip_getsockopt(s, level, optname, optval, optlen); LWIP_API_UNLOCK(); } int lwip_getpeername_r(int s, struct sockaddr *name, socklen_t *namelen) { LWIP_API_LOCK(); __ret = lwip_getpeername(s, name, namelen); LWIP_API_UNLOCK(); } int lwip_getsockname_r(int s, struct sockaddr *name, socklen_t *namelen) { LWIP_API_LOCK(); __ret = lwip_getsockname(s, name, namelen); LWIP_API_UNLOCK(); } int lwip_close_r(int s) { LWIP_API_LOCK(); LWIP_SET_CLOSE_FLAG(); __ret = lwip_close(s); LWIP_API_UNLOCK(); } int lwip_shutdown_r(int s, int how) { LWIP_API_LOCK(); __ret = lwip_shutdown(s, how); LWIP_API_UNLOCK(); } #endif #endif /* LWIP_SOCKET */