/** | |
* @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 <adam@sics.se> | |
* | |
* Improved by Marc Boucher <marc@mbsi.ca> and David Haas <dhaas@alum.rpi.edu> | |
* | |
*/ | |
#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/tcpip.h" | |
#include <string.h> | |
#define NUM_SOCKETS MEMP_NUM_NETCONN | |
/** Contains all internal pointers and states used for a socket */ | |
struct lwip_socket { | |
/** sockets currently are built on netconns, each socket has one netconn */ | |
struct netconn *conn; | |
/** data that was left from the previous read */ | |
struct netbuf *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 */ | |
u16_t rcvevent; | |
/** number of times data was received, set by event_callback(), | |
tested by select */ | |
u16_t sendevent; | |
/** socket flags (currently, only used for O_NONBLOCK) */ | |
u16_t flags; | |
/** last error that occurred on this socket */ | |
int err; | |
}; | |
/** Description for a task waiting in select */ | |
struct lwip_select_cb { | |
/** Pointer to the next waiting task */ | |
struct lwip_select_cb *next; | |
/** 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 */ | |
sys_sem_t sem; | |
}; | |
/** This struct is used to pass data to the set/getsockopt_internal | |
* functions running in tcpip_thread context (only a void* is allowed) */ | |
struct lwip_setgetsockopt_data { | |
/** socket struct for which to change options */ | |
struct lwip_socket *sock; | |
/** socket index for which to change options */ | |
int s; | |
/** level of the option to process */ | |
int level; | |
/** name of the option to process */ | |
int optname; | |
/** set: value to set the option to | |
* get: value of the option is stored here */ | |
void *optval; | |
/** size of *optval */ | |
socklen_t *optlen; | |
/** if an error occures, it is temporarily stored here */ | |
err_t err; | |
}; | |
/** The global array of available sockets */ | |
static struct lwip_socket sockets[NUM_SOCKETS]; | |
/** The global list of tasks waiting for select */ | |
static struct lwip_select_cb *select_cb_list; | |
/** Semaphore protecting the sockets array */ | |
static sys_sem_t socksem; | |
/** Semaphore protecting select_cb_list */ | |
static sys_sem_t selectsem; | |
/** 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. */ | |
EHOSTUNREACH, /* ERR_RTE -3 Routing problem. */ | |
ECONNABORTED, /* ERR_ABRT -4 Connection aborted. */ | |
ECONNRESET, /* ERR_RST -5 Connection reset. */ | |
ESHUTDOWN, /* ERR_CLSD -6 Connection closed. */ | |
ENOTCONN, /* ERR_CONN -7 Not connected. */ | |
EINVAL, /* ERR_VAL -8 Illegal value. */ | |
EIO, /* ERR_ARG -9 Illegal argument. */ | |
EADDRINUSE, /* ERR_USE -10 Address in use. */ | |
-1, /* ERR_IF -11 Low-level netif error */ | |
-1, /* ERR_ISCONN -12 Already connected. */ | |
ETIMEDOUT, /* ERR_TIMEOUT -13 Timeout */ | |
EINPROGRESS /* ERR_INPROGRESS -14 Operation in progress */ | |
}; | |
#define ERR_TO_ERRNO_TABLE_SIZE \ | |
(sizeof(err_to_errno_table)/sizeof(err_to_errno_table[0])) | |
#define err_to_errno(err) \ | |
((unsigned)(-(err)) < ERR_TO_ERRNO_TABLE_SIZE ? \ | |
err_to_errno_table[-(err)] : EIO) | |
#ifdef ERRNO | |
#define set_errno(err) errno = (err) | |
#else | |
#define set_errno(err) | |
#endif | |
#define sock_set_errno(sk, e) do { \ | |
sk->err = (e); \ | |
set_errno(sk->err); \ | |
} while (0) | |
/* Forward delcaration of some functions */ | |
static void event_callback(struct netconn *conn, enum netconn_evt evt, u16_t len); | |
static void lwip_getsockopt_internal(void *arg); | |
static void lwip_setsockopt_internal(void *arg); | |
/** | |
* Initialize this module. This function has to be called before any other | |
* functions in this module! | |
*/ | |
void | |
lwip_socket_init(void) | |
{ | |
socksem = sys_sem_new(1); | |
selectsem = sys_sem_new(1); | |
} | |
/** | |
* Map a externally used socket index to the internal socket representation. | |
* | |
* @param s externally used socket index | |
* @return struct lwip_socket for the socket or NULL if not found | |
*/ | |
static struct lwip_socket * | |
get_socket(int s) | |
{ | |
struct lwip_socket *sock; | |
if ((s < 0) || (s >= NUM_SOCKETS)) { | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", s)); | |
set_errno(EBADF); | |
return NULL; | |
} | |
sock = &sockets[s]; | |
if (!sock->conn) { | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): not active\n", s)); | |
set_errno(EBADF); | |
return NULL; | |
} | |
return sock; | |
} | |
/** | |
* Allocate a new socket for a given netconn. | |
* | |
* @param newconn the netconn for which to allocate a socket | |
* @return the index of the new socket; -1 on error | |
*/ | |
static int | |
alloc_socket(struct netconn *newconn) | |
{ | |
int i; | |
/* Protect socket array */ | |
sys_sem_wait(socksem); | |
/* allocate a new socket identifier */ | |
for (i = 0; i < NUM_SOCKETS; ++i) { | |
if (!sockets[i].conn) { | |
sockets[i].conn = newconn; | |
sockets[i].lastdata = NULL; | |
sockets[i].lastoffset = 0; | |
sockets[i].rcvevent = 0; | |
sockets[i].sendevent = 1; /* TCP send buf is empty */ | |
sockets[i].flags = 0; | |
sockets[i].err = 0; | |
sys_sem_signal(socksem); | |
return i; | |
} | |
} | |
sys_sem_signal(socksem); | |
return -1; | |
} | |
/* 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_socket *sock, *nsock; | |
struct netconn *newconn; | |
struct ip_addr naddr; | |
u16_t port; | |
int newsock; | |
struct sockaddr_in sin; | |
err_t err; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d)...\n", s)); | |
sock = get_socket(s); | |
if (!sock) | |
return -1; | |
newconn = netconn_accept(sock->conn); | |
if (!newconn) { | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) failed, err=%d\n", s, sock->conn->err)); | |
sock_set_errno(sock, err_to_errno(sock->conn->err)); | |
return -1; | |
} | |
/* get the IP address and port of the remote host */ | |
err = netconn_peer(newconn, &naddr, &port); | |
if (err != ERR_OK) { | |
netconn_delete(newconn); | |
sock_set_errno(sock, err_to_errno(err)); | |
return -1; | |
} | |
memset(&sin, 0, sizeof(sin)); | |
sin.sin_len = sizeof(sin); | |
sin.sin_family = AF_INET; | |
sin.sin_port = htons(port); | |
sin.sin_addr.s_addr = naddr.addr; | |
if (*addrlen > sizeof(sin)) | |
*addrlen = sizeof(sin); | |
SMEMCPY(addr, &sin, *addrlen); | |
newsock = alloc_socket(newconn); | |
if (newsock == -1) { | |
netconn_delete(newconn); | |
sock_set_errno(sock, ENFILE); | |
return -1; | |
} | |
LWIP_ASSERT("invalid socket index", (newsock >= 0) && (newsock < NUM_SOCKETS)); | |
newconn->callback = event_callback; | |
nsock = &sockets[newsock]; | |
LWIP_ASSERT("invalid socket pointer", nsock != NULL); | |
sys_sem_wait(socksem); | |
/* 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! | |
*/ | |
nsock->rcvevent += -1 - newconn->socket; | |
newconn->socket = newsock; | |
sys_sem_signal(socksem); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_accept(%d) returning new sock=%d addr=", s, newsock)); | |
ip_addr_debug_print(SOCKETS_DEBUG, &naddr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u\n", port)); | |
sock_set_errno(sock, 0); | |
return newsock; | |
} | |
int | |
lwip_bind(int s, struct sockaddr *name, socklen_t namelen) | |
{ | |
struct lwip_socket *sock; | |
struct ip_addr local_addr; | |
u16_t local_port; | |
err_t err; | |
sock = get_socket(s); | |
if (!sock) | |
return -1; | |
LWIP_ERROR("lwip_bind: invalid address", ((namelen == sizeof(struct sockaddr_in)) && | |
((((struct sockaddr_in *)name)->sin_family) == AF_INET)), | |
sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); | |
local_addr.addr = ((struct sockaddr_in *)name)->sin_addr.s_addr; | |
local_port = ((struct sockaddr_in *)name)->sin_port; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_bind(%d, addr=", s)); | |
ip_addr_debug_print(SOCKETS_DEBUG, &local_addr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u)\n", ntohs(local_port))); | |
err = netconn_bind(sock->conn, &local_addr, ntohs(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_socket *sock; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_close(%d)\n", s)); | |
sock = get_socket(s); | |
if (!sock) { | |
return -1; | |
} | |
netconn_delete(sock->conn); | |
sys_sem_wait(socksem); | |
if (sock->lastdata) { | |
netbuf_delete(sock->lastdata); | |
} | |
sock->lastdata = NULL; | |
sock->lastoffset = 0; | |
sock->conn = NULL; | |
sock_set_errno(sock, 0); | |
sys_sem_signal(socksem); | |
return 0; | |
} | |
int | |
lwip_connect(int s, const struct sockaddr *name, socklen_t namelen) | |
{ | |
struct lwip_socket *sock; | |
err_t err; | |
sock = get_socket(s); | |
if (!sock) | |
return -1; | |
LWIP_ERROR("lwip_connect: invalid address", ((namelen == sizeof(struct sockaddr_in)) && | |
((((struct sockaddr_in *)name)->sin_family) == AF_INET)), | |
sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); | |
if (((struct sockaddr_in *)name)->sin_family == AF_UNSPEC) { | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, AF_UNSPEC)\n", s)); | |
err = netconn_disconnect(sock->conn); | |
} else { | |
struct ip_addr remote_addr; | |
u16_t remote_port; | |
remote_addr.addr = ((struct sockaddr_in *)name)->sin_addr.s_addr; | |
remote_port = ((struct sockaddr_in *)name)->sin_port; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_connect(%d, addr=", s)); | |
ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u)\n", ntohs(remote_port))); | |
err = netconn_connect(sock->conn, &remote_addr, ntohs(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: need TCP_LISTEN_BACKLOG=1) | |
* @return 0 on success, non-zero on failure | |
*/ | |
int | |
lwip_listen(int s, int backlog) | |
{ | |
struct lwip_socket *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 */ | |
if (backlog < 0) { | |
backlog = 0; | |
} | |
if (backlog > 0xff) { | |
backlog = 0xff; | |
} | |
err = netconn_listen_with_backlog(sock->conn, backlog); | |
if (err != ERR_OK) { | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_listen(%d) failed, err=%d\n", s, err)); | |
sock_set_errno(sock, err_to_errno(err)); | |
return -1; | |
} | |
sock_set_errno(sock, 0); | |
return 0; | |
} | |
int | |
lwip_recvfrom(int s, void *mem, int len, unsigned int flags, | |
struct sockaddr *from, socklen_t *fromlen) | |
{ | |
struct lwip_socket *sock; | |
struct netbuf *buf; | |
u16_t buflen, copylen, off = 0; | |
struct ip_addr *addr; | |
u16_t port; | |
u8_t done = 0; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d, %p, %d, 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", (void*)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) || (sock->flags & O_NONBLOCK)) && !sock->rcvevent) { | |
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. */ | |
sock->lastdata = buf = netconn_recv(sock->conn); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: netconn_recv netbuf=%p\n", (void*)buf)); | |
if (!buf) { | |
/* We should really do some error checking here. */ | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): buf == NULL!\n", s)); | |
sock_set_errno(sock, (((sock->conn->pcb.ip!=NULL) && (sock->conn->err==ERR_OK))?ETIMEDOUT:err_to_errno(sock->conn->err))); | |
return 0; | |
} | |
} | |
buflen = netbuf_len(buf); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: buflen=%d len=%d off=%d sock->lastoffset=%d\n", buflen, len, off, sock->lastoffset)); | |
buflen -= sock->lastoffset; | |
if (len > buflen) { | |
copylen = buflen; | |
} else { | |
copylen = len; | |
} | |
/* copy the contents of the received buffer into | |
the supplied memory pointer mem */ | |
netbuf_copy_partial(buf, (u8_t*)mem + off, copylen, sock->lastoffset); | |
off += copylen; | |
if (netconn_type(sock->conn) == NETCONN_TCP) { | |
len -= copylen; | |
if ( (len <= 0) || (buf->p->flags & PBUF_FLAG_PUSH) || !sock->rcvevent) { | |
done = 1; | |
} | |
} else { | |
done = 1; | |
} | |
/* 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 ((sock->conn->type == NETCONN_TCP) && (buflen - copylen > 0)) { | |
sock->lastdata = buf; | |
sock->lastoffset += copylen; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", (void*)buf)); | |
} else { | |
sock->lastdata = NULL; | |
sock->lastoffset = 0; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", (void*)buf)); | |
netbuf_delete(buf); | |
} | |
} else { | |
done = 1; | |
} | |
} while (!done); | |
/* Check to see from where the data was.*/ | |
if (from && fromlen) { | |
struct sockaddr_in sin; | |
if (netconn_type(sock->conn) == NETCONN_TCP) { | |
addr = (struct ip_addr*)&(sin.sin_addr.s_addr); | |
netconn_getaddr(sock->conn, addr, &port, 0); | |
} else { | |
addr = netbuf_fromaddr(buf); | |
port = netbuf_fromport(buf); | |
} | |
memset(&sin, 0, sizeof(sin)); | |
sin.sin_len = sizeof(sin); | |
sin.sin_family = AF_INET; | |
sin.sin_port = htons(port); | |
sin.sin_addr.s_addr = addr->addr; | |
if (*fromlen > sizeof(sin)) | |
*fromlen = sizeof(sin); | |
SMEMCPY(from, &sin, *fromlen); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s)); | |
ip_addr_debug_print(SOCKETS_DEBUG, addr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, off)); | |
} else { | |
#if SOCKETS_DEBUG | |
struct sockaddr_in sin; | |
if (netconn_type(sock->conn) == NETCONN_TCP) { | |
addr = (struct ip_addr*)&(sin.sin_addr.s_addr); | |
netconn_getaddr(sock->conn, addr, &port, 0); | |
} else { | |
addr = netbuf_fromaddr(buf); | |
port = netbuf_fromport(buf); | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s)); | |
ip_addr_debug_print(SOCKETS_DEBUG, addr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, off)); | |
#endif /* SOCKETS_DEBUG */ | |
} | |
sock_set_errno(sock, 0); | |
return off; | |
} | |
int | |
lwip_read(int s, void *mem, int len) | |
{ | |
return lwip_recvfrom(s, mem, len, 0, NULL, NULL); | |
} | |
int | |
lwip_recv(int s, void *mem, int len, unsigned int flags) | |
{ | |
return lwip_recvfrom(s, mem, len, flags, NULL, NULL); | |
} | |
int | |
lwip_send(int s, const void *data, int size, unsigned int flags) | |
{ | |
struct lwip_socket *sock; | |
err_t err; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%d, flags=0x%x)\n", | |
s, data, size, flags)); | |
sock = get_socket(s); | |
if (!sock) | |
return -1; | |
if (sock->conn->type!=NETCONN_TCP) { | |
#if (LWIP_UDP || LWIP_RAW) | |
return lwip_sendto(s, data, size, flags, NULL, 0); | |
#else | |
sock_set_errno(sock, err_to_errno(ERR_ARG)); | |
return -1; | |
#endif /* (LWIP_UDP || LWIP_RAW) */ | |
} | |
err = netconn_write(sock->conn, data, size, NETCONN_COPY | ((flags & MSG_MORE)?NETCONN_MORE:0)); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%d\n", s, err, size)); | |
sock_set_errno(sock, err_to_errno(err)); | |
return (err==ERR_OK?size:-1); | |
} | |
int | |
lwip_sendto(int s, const void *data, int size, unsigned int flags, | |
struct sockaddr *to, socklen_t tolen) | |
{ | |
struct lwip_socket *sock; | |
struct ip_addr remote_addr; | |
int err; | |
#if !LWIP_TCPIP_CORE_LOCKING | |
struct netbuf buf; | |
u16_t remote_port; | |
#endif | |
sock = get_socket(s); | |
if (!sock) | |
return -1; | |
if (sock->conn->type==NETCONN_TCP) { | |
#if LWIP_TCP | |
return lwip_send(s, data, size, flags); | |
#else | |
sock_set_errno(sock, err_to_errno(ERR_ARG)); | |
return -1; | |
#endif /* LWIP_TCP */ | |
} | |
LWIP_ASSERT("lwip_sendto: size must fit in u16_t", | |
((size >= 0) && (size <= 0xffff))); | |
LWIP_ERROR("lwip_sendto: invalid address", (((to == NULL) && (tolen == 0)) || | |
((tolen == sizeof(struct sockaddr_in)) && | |
((((struct sockaddr_in *)to)->sin_family) == AF_INET))), | |
sock_set_errno(sock, err_to_errno(ERR_ARG)); return -1;); | |
#if LWIP_TCPIP_CORE_LOCKING | |
/* Should only be consider like a sample or a simple way to experiment this option (no check of "to" field...) */ | |
{ struct pbuf* p; | |
p = pbuf_alloc(PBUF_TRANSPORT, 0, PBUF_REF); | |
if (p == NULL) { | |
err = ERR_MEM; | |
} else { | |
p->payload = (void*)data; | |
p->len = p->tot_len = size; | |
remote_addr.addr = ((struct sockaddr_in *)to)->sin_addr.s_addr; | |
LOCK_TCPIP_CORE(); | |
if (sock->conn->type==NETCONN_RAW) { | |
err = sock->conn->err = raw_sendto(sock->conn->pcb.raw, p, &remote_addr); | |
} else { | |
err = sock->conn->err = udp_sendto(sock->conn->pcb.udp, p, &remote_addr, ntohs(((struct sockaddr_in *)to)->sin_port)); | |
} | |
UNLOCK_TCPIP_CORE(); | |
pbuf_free(p); | |
} | |
} | |
#else | |
/* initialize a buffer */ | |
buf.p = buf.ptr = NULL; | |
if (to) { | |
remote_addr.addr = ((struct sockaddr_in *)to)->sin_addr.s_addr; | |
remote_port = ntohs(((struct sockaddr_in *)to)->sin_port); | |
buf.addr = &remote_addr; | |
buf.port = remote_port; | |
} else { | |
remote_addr.addr = 0; | |
remote_port = 0; | |
buf.addr = NULL; | |
buf.port = 0; | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_sendto(%d, data=%p, size=%d, flags=0x%x to=", | |
s, data, size, flags)); | |
ip_addr_debug_print(SOCKETS_DEBUG, &remote_addr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u\n", remote_port)); | |
/* make the buffer point to the data that should be sent */ | |
if ((err = netbuf_ref(&buf, data, size)) == ERR_OK) { | |
/* send the data */ | |
err = netconn_send(sock->conn, &buf); | |
} | |
/* deallocated the buffer */ | |
if (buf.p != NULL) { | |
pbuf_free(buf.p); | |
} | |
#endif /* LWIP_TCPIP_CORE_LOCKING */ | |
sock_set_errno(sock, err_to_errno(err)); | |
return (err==ERR_OK?size:-1); | |
} | |
int | |
lwip_socket(int domain, int type, int protocol) | |
{ | |
struct netconn *conn; | |
int i; | |
LWIP_UNUSED_ARG(domain); | |
/* create a netconn */ | |
switch (type) { | |
case SOCK_RAW: | |
conn = netconn_new_with_proto_and_callback(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( (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(NETCONN_TCP, event_callback); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_socket(%s, SOCK_STREAM, %d) = ", | |
domain == PF_INET ? "PF_INET" : "UNKNOWN", protocol)); | |
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); | |
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, int size) | |
{ | |
return lwip_send(s, data, size, 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. | |
* | |
* exceptset is not used for now!!! | |
* | |
* @param maxfdp1 the highest socket index in the sets | |
* @param readset in: set of sockets to check for read events; | |
* out: set of sockets that had read events | |
* @param writeset in: set of sockets to check for write events; | |
* out: set of sockets that had write events | |
* @param exceptset not yet implemented | |
* @return number of sockets that had events (read+write) | |
*/ | |
static int | |
lwip_selscan(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset) | |
{ | |
int i, nready = 0; | |
fd_set lreadset, lwriteset, lexceptset; | |
struct lwip_socket *p_sock; | |
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 = 0; i < maxfdp1; i++) { | |
if (FD_ISSET(i, readset)) { | |
/* See if netconn of this socket is ready for read */ | |
p_sock = get_socket(i); | |
if (p_sock && (p_sock->lastdata || p_sock->rcvevent)) { | |
FD_SET(i, &lreadset); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for reading\n", i)); | |
nready++; | |
} | |
} | |
if (FD_ISSET(i, writeset)) { | |
/* See if netconn of this socket is ready for write */ | |
p_sock = get_socket(i); | |
if (p_sock && p_sock->sendevent) { | |
FD_SET(i, &lwriteset); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_selscan: fd=%d ready for writing\n", i)); | |
nready++; | |
} | |
} | |
} | |
*readset = lreadset; | |
*writeset = lwriteset; | |
FD_ZERO(exceptset); | |
return nready; | |
} | |
/** | |
* Processing exceptset is not yet implemented. | |
*/ | |
int | |
lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, | |
struct timeval *timeout) | |
{ | |
int i; | |
int nready; | |
fd_set lreadset, lwriteset, lexceptset; | |
u32_t msectimeout; | |
struct lwip_select_cb select_cb; | |
struct lwip_select_cb *p_selcb; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select(%d, %p, %p, %p, tvsec=%ld tvusec=%ld)\n", | |
maxfdp1, (void *)readset, (void *) writeset, (void *) exceptset, | |
timeout ? timeout->tv_sec : -1L, timeout ? timeout->tv_usec : -1L)); | |
select_cb.next = 0; | |
select_cb.readset = readset; | |
select_cb.writeset = writeset; | |
select_cb.exceptset = exceptset; | |
select_cb.sem_signalled = 0; | |
/* Protect ourselves searching through the list */ | |
sys_sem_wait(selectsem); | |
if (readset) | |
lreadset = *readset; | |
else | |
FD_ZERO(&lreadset); | |
if (writeset) | |
lwriteset = *writeset; | |
else | |
FD_ZERO(&lwriteset); | |
if (exceptset) | |
lexceptset = *exceptset; | |
else | |
FD_ZERO(&lexceptset); | |
/* Go through each socket in each list to count number of sockets which | |
currently match */ | |
nready = lwip_selscan(maxfdp1, &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) { | |
sys_sem_signal(selectsem); | |
if (readset) | |
FD_ZERO(readset); | |
if (writeset) | |
FD_ZERO(writeset); | |
if (exceptset) | |
FD_ZERO(exceptset); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: no timeout, returning 0\n")); | |
set_errno(0); | |
return 0; | |
} | |
/* 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.sem = sys_sem_new(0); | |
/* Note that we are still protected */ | |
/* Put this select_cb on top of list */ | |
select_cb.next = select_cb_list; | |
select_cb_list = &select_cb; | |
/* Now we can safely unprotect */ | |
sys_sem_signal(selectsem); | |
/* Now 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) | |
msectimeout = 1; | |
} | |
i = sys_sem_wait_timeout(select_cb.sem, msectimeout); | |
/* Take us off the list */ | |
sys_sem_wait(selectsem); | |
if (select_cb_list == &select_cb) | |
select_cb_list = select_cb.next; | |
else | |
for (p_selcb = select_cb_list; p_selcb; p_selcb = p_selcb->next) { | |
if (p_selcb->next == &select_cb) { | |
p_selcb->next = select_cb.next; | |
break; | |
} | |
} | |
sys_sem_signal(selectsem); | |
sys_sem_free(select_cb.sem); | |
if (i == 0) { | |
/* Timeout */ | |
if (readset) | |
FD_ZERO(readset); | |
if (writeset) | |
FD_ZERO(writeset); | |
if (exceptset) | |
FD_ZERO(exceptset); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: timeout expired\n")); | |
set_errno(0); | |
return 0; | |
} | |
if (readset) | |
lreadset = *readset; | |
else | |
FD_ZERO(&lreadset); | |
if (writeset) | |
lwriteset = *writeset; | |
else | |
FD_ZERO(&lwriteset); | |
if (exceptset) | |
lexceptset = *exceptset; | |
else | |
FD_ZERO(&lexceptset); | |
/* See what's set */ | |
nready = lwip_selscan(maxfdp1, &lreadset, &lwriteset, &lexceptset); | |
} else | |
sys_sem_signal(selectsem); | |
if (readset) | |
*readset = lreadset; | |
if (writeset) | |
*writeset = lwriteset; | |
if (exceptset) | |
*exceptset = lexceptset; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_select: nready=%d\n", nready)); | |
set_errno(0); | |
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_socket *sock; | |
struct lwip_select_cb *scb; | |
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_sem_wait(socksem); | |
if (conn->socket < 0) { | |
if (evt == NETCONN_EVT_RCVPLUS) { | |
conn->socket--; | |
} | |
sys_sem_signal(socksem); | |
return; | |
} | |
sys_sem_signal(socksem); | |
} | |
sock = get_socket(s); | |
if (!sock) { | |
return; | |
} | |
} else { | |
return; | |
} | |
sys_sem_wait(selectsem); | |
/* 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; | |
default: | |
LWIP_ASSERT("unknown event", 0); | |
break; | |
} | |
sys_sem_signal(selectsem); | |
/* Now decide if anyone is waiting for this socket */ | |
/* NOTE: This code is written this way to protect the select link list | |
but to avoid a deadlock situation by releasing socksem before | |
signalling for the select. This means we need to go through the 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. */ | |
while (1) { | |
sys_sem_wait(selectsem); | |
for (scb = select_cb_list; scb; scb = scb->next) { | |
if (scb->sem_signalled == 0) { | |
/* Test this select call for our socket */ | |
if (scb->readset && FD_ISSET(s, scb->readset)) | |
if (sock->rcvevent) | |
break; | |
if (scb->writeset && FD_ISSET(s, scb->writeset)) | |
if (sock->sendevent) | |
break; | |
} | |
} | |
if (scb) { | |
scb->sem_signalled = 1; | |
sys_sem_signal(selectsem); | |
sys_sem_signal(scb->sem); | |
} else { | |
sys_sem_signal(selectsem); | |
break; | |
} | |
} | |
} | |
/** | |
* Unimplemented: Close one end of a full-duplex connection. | |
* Currently, the full connection is closed. | |
*/ | |
int | |
lwip_shutdown(int s, int how) | |
{ | |
LWIP_UNUSED_ARG(how); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_shutdown(%d, how=%d)\n", s, how)); | |
return lwip_close(s); /* XXX temporary hack until proper implementation */ | |
} | |
static int | |
lwip_getaddrname(int s, struct sockaddr *name, socklen_t *namelen, u8_t local) | |
{ | |
struct lwip_socket *sock; | |
struct sockaddr_in sin; | |
struct ip_addr naddr; | |
sock = get_socket(s); | |
if (!sock) | |
return -1; | |
memset(&sin, 0, sizeof(sin)); | |
sin.sin_len = sizeof(sin); | |
sin.sin_family = AF_INET; | |
/* get the IP address and port */ | |
netconn_getaddr(sock->conn, &naddr, &sin.sin_port, local); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getaddrname(%d, addr=", s)); | |
ip_addr_debug_print(SOCKETS_DEBUG, &naddr); | |
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%d)\n", sin.sin_port)); | |
sin.sin_port = htons(sin.sin_port); | |
sin.sin_addr.s_addr = naddr.addr; | |
if (*namelen > sizeof(sin)) | |
*namelen = sizeof(sin); | |
SMEMCPY(name, &sin, *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) | |
{ | |
err_t err = ERR_OK; | |
struct lwip_socket *sock = get_socket(s); | |
struct lwip_setgetsockopt_data data; | |
if (!sock) | |
return -1; | |
if ((NULL == optval) || (NULL == optlen)) { | |
sock_set_errno(sock, EFAULT); | |
return -1; | |
} | |
/* Do length and type checks for the various options first, to keep it readable. */ | |
switch (level) { | |
/* Level: SOL_SOCKET */ | |
case SOL_SOCKET: | |
switch (optname) { | |
case SO_ACCEPTCONN: | |
case SO_BROADCAST: | |
/* UNIMPL case SO_DEBUG: */ | |
/* UNIMPL case SO_DONTROUTE: */ | |
case SO_ERROR: | |
case SO_KEEPALIVE: | |
/* UNIMPL case SO_CONTIMEO: */ | |
/* UNIMPL case SO_SNDTIMEO: */ | |
#if LWIP_SO_RCVTIMEO | |
case SO_RCVTIMEO: | |
#endif /* LWIP_SO_RCVTIMEO */ | |
#if LWIP_SO_RCVBUF | |
case SO_RCVBUF: | |
#endif /* LWIP_SO_RCVBUF */ | |
/* UNIMPL case SO_OOBINLINE: */ | |
/* UNIMPL case SO_SNDBUF: */ | |
/* UNIMPL case SO_RCVLOWAT: */ | |
/* UNIMPL case SO_SNDLOWAT: */ | |
#if SO_REUSE | |
case SO_REUSEADDR: | |
case SO_REUSEPORT: | |
#endif /* SO_REUSE */ | |
case SO_TYPE: | |
/* UNIMPL case SO_USELOOPBACK: */ | |
if (*optlen < sizeof(int)) { | |
err = EINVAL; | |
} | |
break; | |
case SO_NO_CHECK: | |
if (*optlen < sizeof(int)) { | |
err = EINVAL; | |
} | |
#if LWIP_UDP | |
if ((sock->conn->type != NETCONN_UDP) || | |
((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) { | |
/* this flag is only available for UDP, not for UDP lite */ | |
err = EAFNOSUPPORT; | |
} | |
#endif /* LWIP_UDP */ | |
break; | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
/* Level: IPPROTO_IP */ | |
case IPPROTO_IP: | |
switch (optname) { | |
/* UNIMPL case IP_HDRINCL: */ | |
/* UNIMPL case IP_RCVDSTADDR: */ | |
/* UNIMPL case IP_RCVIF: */ | |
case IP_TTL: | |
case IP_TOS: | |
if (*optlen < sizeof(int)) { | |
err = EINVAL; | |
} | |
break; | |
#if LWIP_IGMP | |
case IP_MULTICAST_TTL: | |
if (*optlen < sizeof(u8_t)) { | |
err = EINVAL; | |
} | |
break; | |
case IP_MULTICAST_IF: | |
if (*optlen < sizeof(struct in_addr)) { | |
err = EINVAL; | |
} | |
break; | |
#endif /* LWIP_IGMP */ | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
#if LWIP_TCP | |
/* Level: IPPROTO_TCP */ | |
case IPPROTO_TCP: | |
if (*optlen < sizeof(int)) { | |
err = EINVAL; | |
break; | |
} | |
/* If this is no TCP socket, ignore any options. */ | |
if (sock->conn->type != NETCONN_TCP) | |
return 0; | |
switch (optname) { | |
case TCP_NODELAY: | |
case TCP_KEEPALIVE: | |
#if LWIP_TCP_KEEPALIVE | |
case TCP_KEEPIDLE: | |
case TCP_KEEPINTVL: | |
case TCP_KEEPCNT: | |
#endif /* LWIP_TCP_KEEPALIVE */ | |
break; | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_TCP */ | |
#if LWIP_UDP && LWIP_UDPLITE | |
/* Level: IPPROTO_UDPLITE */ | |
case IPPROTO_UDPLITE: | |
if (*optlen < sizeof(int)) { | |
err = EINVAL; | |
break; | |
} | |
/* If this is no UDP lite socket, ignore any options. */ | |
if (sock->conn->type != NETCONN_UDPLITE) | |
return 0; | |
switch (optname) { | |
case UDPLITE_SEND_CSCOV: | |
case UDPLITE_RECV_CSCOV: | |
break; | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_UDP && LWIP_UDPLITE*/ | |
/* UNDEFINED LEVEL */ | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n", | |
s, level, optname)); | |
err = ENOPROTOOPT; | |
} /* switch */ | |
if (err != ERR_OK) { | |
sock_set_errno(sock, err); | |
return -1; | |
} | |
/* Now do the actual option processing */ | |
data.sock = sock; | |
data.level = level; | |
data.optname = optname; | |
data.optval = optval; | |
data.optlen = optlen; | |
data.err = err; | |
tcpip_callback(lwip_getsockopt_internal, &data); | |
sys_arch_sem_wait(sock->conn->op_completed, 0); | |
/* maybe lwip_getsockopt_internal has changed err */ | |
err = data.err; | |
sock_set_errno(sock, err); | |
return err ? -1 : 0; | |
} | |
static void | |
lwip_getsockopt_internal(void *arg) | |
{ | |
struct lwip_socket *sock; | |
#ifdef LWIP_DEBUG | |
int s; | |
#endif /* LWIP_DEBUG */ | |
int level, optname; | |
void *optval; | |
struct lwip_setgetsockopt_data *data; | |
LWIP_ASSERT("arg != NULL", arg != NULL); | |
data = (struct lwip_setgetsockopt_data*)arg; | |
sock = data->sock; | |
#ifdef LWIP_DEBUG | |
s = data->s; | |
#endif /* LWIP_DEBUG */ | |
level = data->level; | |
optname = data->optname; | |
optval = data->optval; | |
switch (level) { | |
/* Level: SOL_SOCKET */ | |
case SOL_SOCKET: | |
switch (optname) { | |
/* The option flags */ | |
case SO_ACCEPTCONN: | |
case SO_BROADCAST: | |
/* UNIMPL case SO_DEBUG: */ | |
/* UNIMPL case SO_DONTROUTE: */ | |
case SO_KEEPALIVE: | |
/* UNIMPL case SO_OOBINCLUDE: */ | |
#if SO_REUSE | |
case SO_REUSEADDR: | |
case SO_REUSEPORT: | |
#endif /* SO_REUSE */ | |
/*case SO_USELOOPBACK: UNIMPL */ | |
*(int*)optval = sock->conn->pcb.ip->so_options & 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: | |
switch (NETCONNTYPE_GROUP(sock->conn->type)) { | |
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 = sock->conn->type; | |
LWIP_DEBUGF(SOCKETS_DEBUG, | |
("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE): unrecognized socket type %d\n", | |
s, *(int *)optval)); | |
} /* switch (sock->conn->type) */ | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, SOL_SOCKET, SO_TYPE) = %d\n", | |
s, *(int *)optval)); | |
break; | |
case SO_ERROR: | |
if (sock->err == 0) { | |
sock_set_errno(sock, err_to_errno(sock->conn->err)); | |
} | |
*(int *)optval = 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_RCVTIMEO | |
case SO_RCVTIMEO: | |
*(int *)optval = sock->conn->recv_timeout; | |
break; | |
#endif /* LWIP_SO_RCVTIMEO */ | |
#if LWIP_SO_RCVBUF | |
case SO_RCVBUF: | |
*(int *)optval = sock->conn->recv_bufsize; | |
break; | |
#endif /* LWIP_SO_RCVBUF */ | |
#if LWIP_UDP | |
case SO_NO_CHECK: | |
*(int*)optval = (udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_NOCHKSUM) ? 1 : 0; | |
break; | |
#endif /* LWIP_UDP*/ | |
} /* switch (optname) */ | |
break; | |
/* Level: IPPROTO_IP */ | |
case IPPROTO_IP: | |
switch (optname) { | |
case IP_TTL: | |
*(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: | |
*(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_IGMP | |
case IP_MULTICAST_TTL: | |
*(u8_t*)optval = sock->conn->pcb.ip->ttl; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_TTL) = %d\n", | |
s, *(int *)optval)); | |
break; | |
case IP_MULTICAST_IF: | |
((struct in_addr*) optval)->s_addr = sock->conn->pcb.udp->multicast_ip.addr; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_getsockopt(%d, IPPROTO_IP, IP_MULTICAST_IF) = 0x%x\n", | |
s, *(u32_t *)optval)); | |
break; | |
#endif /* LWIP_IGMP */ | |
} /* switch (optname) */ | |
break; | |
#if LWIP_TCP | |
/* Level: IPPROTO_TCP */ | |
case IPPROTO_TCP: | |
switch (optname) { | |
case TCP_NODELAY: | |
*(int*)optval = (sock->conn->pcb.tcp->flags & TF_NODELAY); | |
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_IP, 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_IP, 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_IP, 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_IP, TCP_KEEPCNT) = %d\n", | |
s, *(int *)optval)); | |
break; | |
#endif /* LWIP_TCP_KEEPALIVE */ | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_TCP */ | |
#if LWIP_UDP && LWIP_UDPLITE | |
/* Level: IPPROTO_UDPLITE */ | |
case IPPROTO_UDPLITE: | |
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; | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_UDP */ | |
} /* switch (level) */ | |
sys_sem_signal(sock->conn->op_completed); | |
} | |
int | |
lwip_setsockopt(int s, int level, int optname, const void *optval, socklen_t optlen) | |
{ | |
struct lwip_socket *sock = get_socket(s); | |
int err = ERR_OK; | |
struct lwip_setgetsockopt_data data; | |
if (!sock) | |
return -1; | |
if (NULL == optval) { | |
sock_set_errno(sock, EFAULT); | |
return -1; | |
} | |
/* Do length and type checks for the various options first, to keep it readable. */ | |
switch (level) { | |
/* Level: SOL_SOCKET */ | |
case SOL_SOCKET: | |
switch (optname) { | |
case SO_BROADCAST: | |
/* UNIMPL case SO_DEBUG: */ | |
/* UNIMPL case SO_DONTROUTE: */ | |
case SO_KEEPALIVE: | |
/* UNIMPL case case SO_CONTIMEO: */ | |
/* UNIMPL case case SO_SNDTIMEO: */ | |
#if LWIP_SO_RCVTIMEO | |
case SO_RCVTIMEO: | |
#endif /* LWIP_SO_RCVTIMEO */ | |
#if LWIP_SO_RCVBUF | |
case SO_RCVBUF: | |
#endif /* LWIP_SO_RCVBUF */ | |
/* UNIMPL case SO_OOBINLINE: */ | |
/* UNIMPL case SO_SNDBUF: */ | |
/* UNIMPL case SO_RCVLOWAT: */ | |
/* UNIMPL case SO_SNDLOWAT: */ | |
#if SO_REUSE | |
case SO_REUSEADDR: | |
case SO_REUSEPORT: | |
#endif /* SO_REUSE */ | |
/* UNIMPL case SO_USELOOPBACK: */ | |
if (optlen < sizeof(int)) { | |
err = EINVAL; | |
} | |
break; | |
case SO_NO_CHECK: | |
if (optlen < sizeof(int)) { | |
err = EINVAL; | |
} | |
#if LWIP_UDP | |
if ((sock->conn->type != NETCONN_UDP) || | |
((udp_flags(sock->conn->pcb.udp) & UDP_FLAGS_UDPLITE) != 0)) { | |
/* this flag is only available for UDP, not for UDP lite */ | |
err = EAFNOSUPPORT; | |
} | |
#endif /* LWIP_UDP */ | |
break; | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
/* Level: IPPROTO_IP */ | |
case IPPROTO_IP: | |
switch (optname) { | |
/* UNIMPL case IP_HDRINCL: */ | |
/* UNIMPL case IP_RCVDSTADDR: */ | |
/* UNIMPL case IP_RCVIF: */ | |
case IP_TTL: | |
case IP_TOS: | |
if (optlen < sizeof(int)) { | |
err = EINVAL; | |
} | |
break; | |
#if LWIP_IGMP | |
case IP_MULTICAST_TTL: | |
if (optlen < sizeof(u8_t)) { | |
err = EINVAL; | |
} | |
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) { | |
err = EAFNOSUPPORT; | |
} | |
break; | |
case IP_MULTICAST_IF: | |
if (optlen < sizeof(struct in_addr)) { | |
err = EINVAL; | |
} | |
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) { | |
err = EAFNOSUPPORT; | |
} | |
break; | |
case IP_ADD_MEMBERSHIP: | |
case IP_DROP_MEMBERSHIP: | |
if (optlen < sizeof(struct ip_mreq)) { | |
err = EINVAL; | |
} | |
if (NETCONNTYPE_GROUP(sock->conn->type) != NETCONN_UDP) { | |
err = EAFNOSUPPORT; | |
} | |
break; | |
#endif /* LWIP_IGMP */ | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
#if LWIP_TCP | |
/* Level: IPPROTO_TCP */ | |
case IPPROTO_TCP: | |
if (optlen < sizeof(int)) { | |
err = EINVAL; | |
break; | |
} | |
/* If this is no TCP socket, ignore any options. */ | |
if (sock->conn->type != NETCONN_TCP) | |
return 0; | |
switch (optname) { | |
case TCP_NODELAY: | |
case TCP_KEEPALIVE: | |
#if LWIP_TCP_KEEPALIVE | |
case TCP_KEEPIDLE: | |
case TCP_KEEPINTVL: | |
case TCP_KEEPCNT: | |
#endif /* LWIP_TCP_KEEPALIVE */ | |
break; | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_TCP */ | |
#if LWIP_UDP && LWIP_UDPLITE | |
/* Level: IPPROTO_UDPLITE */ | |
case IPPROTO_UDPLITE: | |
if (optlen < sizeof(int)) { | |
err = EINVAL; | |
break; | |
} | |
/* If this is no UDP lite socket, ignore any options. */ | |
if (sock->conn->type != NETCONN_UDPLITE) | |
return 0; | |
switch (optname) { | |
case UDPLITE_SEND_CSCOV: | |
case UDPLITE_RECV_CSCOV: | |
break; | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UNIMPL: optname=0x%x, ..)\n", | |
s, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_UDP && LWIP_UDPLITE */ | |
/* UNDEFINED LEVEL */ | |
default: | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, level=0x%x, UNIMPL: optname=0x%x, ..)\n", | |
s, level, optname)); | |
err = ENOPROTOOPT; | |
} /* switch (level) */ | |
if (err != ERR_OK) { | |
sock_set_errno(sock, err); | |
return -1; | |
} | |
/* Now do the actual option processing */ | |
data.sock = sock; | |
data.level = level; | |
data.optname = optname; | |
data.optval = (void*)optval; | |
data.optlen = &optlen; | |
data.err = err; | |
tcpip_callback(lwip_setsockopt_internal, &data); | |
sys_arch_sem_wait(sock->conn->op_completed, 0); | |
/* maybe lwip_setsockopt_internal has changed err */ | |
err = data.err; | |
sock_set_errno(sock, err); | |
return err ? -1 : 0; | |
} | |
static void | |
lwip_setsockopt_internal(void *arg) | |
{ | |
struct lwip_socket *sock; | |
#ifdef LWIP_DEBUG | |
int s; | |
#endif /* LWIP_DEBUG */ | |
int level, optname; | |
const void *optval; | |
struct lwip_setgetsockopt_data *data; | |
LWIP_ASSERT("arg != NULL", arg != NULL); | |
data = (struct lwip_setgetsockopt_data*)arg; | |
sock = data->sock; | |
#ifdef LWIP_DEBUG | |
s = data->s; | |
#endif /* LWIP_DEBUG */ | |
level = data->level; | |
optname = data->optname; | |
optval = data->optval; | |
switch (level) { | |
/* Level: SOL_SOCKET */ | |
case SOL_SOCKET: | |
switch (optname) { | |
/* The option flags */ | |
case SO_BROADCAST: | |
/* UNIMPL case SO_DEBUG: */ | |
/* UNIMPL case SO_DONTROUTE: */ | |
case SO_KEEPALIVE: | |
/* UNIMPL case SO_OOBINCLUDE: */ | |
#if SO_REUSE | |
case SO_REUSEADDR: | |
case SO_REUSEPORT: | |
#endif /* SO_REUSE */ | |
/* UNIMPL case SO_USELOOPBACK: */ | |
if (*(int*)optval) { | |
sock->conn->pcb.ip->so_options |= optname; | |
} else { | |
sock->conn->pcb.ip->so_options &= ~optname; | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, SOL_SOCKET, optname=0x%x, ..) -> %s\n", | |
s, optname, (*(int*)optval?"on":"off"))); | |
break; | |
#if LWIP_SO_RCVTIMEO | |
case SO_RCVTIMEO: | |
sock->conn->recv_timeout = ( *(int*)optval ); | |
break; | |
#endif /* LWIP_SO_RCVTIMEO */ | |
#if LWIP_SO_RCVBUF | |
case SO_RCVBUF: | |
sock->conn->recv_bufsize = ( *(int*)optval ); | |
break; | |
#endif /* LWIP_SO_RCVBUF */ | |
#if LWIP_UDP | |
case SO_NO_CHECK: | |
if (*(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 */ | |
} /* switch (optname) */ | |
break; | |
/* Level: IPPROTO_IP */ | |
case IPPROTO_IP: | |
switch (optname) { | |
case IP_TTL: | |
sock->conn->pcb.ip->ttl = (u8_t)(*(int*)optval); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TTL, ..) -> %u\n", | |
s, sock->conn->pcb.ip->ttl)); | |
break; | |
case IP_TOS: | |
sock->conn->pcb.ip->tos = (u8_t)(*(int*)optval); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_IP, IP_TOS, ..)-> %u\n", | |
s, sock->conn->pcb.ip->tos)); | |
break; | |
#if LWIP_IGMP | |
case IP_MULTICAST_TTL: | |
sock->conn->pcb.udp->ttl = (u8_t)(*(u8_t*)optval); | |
break; | |
case IP_MULTICAST_IF: | |
sock->conn->pcb.udp->multicast_ip.addr = ((struct in_addr*) optval)->s_addr; | |
break; | |
case IP_ADD_MEMBERSHIP: | |
case IP_DROP_MEMBERSHIP: | |
{ | |
/* If this is a TCP or a RAW socket, ignore these options. */ | |
struct ip_mreq *imr = (struct ip_mreq *)optval; | |
if(optname == IP_ADD_MEMBERSHIP){ | |
data->err = igmp_joingroup((struct ip_addr*)&(imr->imr_interface.s_addr), (struct ip_addr*)&(imr->imr_multiaddr.s_addr)); | |
} else { | |
data->err = igmp_leavegroup((struct ip_addr*)&(imr->imr_interface.s_addr), (struct ip_addr*)&(imr->imr_multiaddr.s_addr)); | |
} | |
if(data->err != ERR_OK) { | |
data->err = EADDRNOTAVAIL; | |
} | |
} | |
break; | |
#endif /* LWIP_IGMP */ | |
} /* switch (optname) */ | |
break; | |
#if LWIP_TCP | |
/* Level: IPPROTO_TCP */ | |
case IPPROTO_TCP: | |
switch (optname) { | |
case TCP_NODELAY: | |
if (*(int*)optval) { | |
sock->conn->pcb.tcp->flags |= TF_NODELAY; | |
} else { | |
sock->conn->pcb.tcp->flags &= ~TF_NODELAY; | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_NODELAY) -> %s\n", | |
s, (*(int *)optval)?"on":"off") ); | |
break; | |
case TCP_KEEPALIVE: | |
sock->conn->pcb.tcp->keep_idle = (u32_t)(*(int*)optval); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPALIVE) -> %lu\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)(*(int*)optval); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPIDLE) -> %lu\n", | |
s, sock->conn->pcb.tcp->keep_idle)); | |
break; | |
case TCP_KEEPINTVL: | |
sock->conn->pcb.tcp->keep_intvl = 1000*(u32_t)(*(int*)optval); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPINTVL) -> %lu\n", | |
s, sock->conn->pcb.tcp->keep_intvl)); | |
break; | |
case TCP_KEEPCNT: | |
sock->conn->pcb.tcp->keep_cnt = (u32_t)(*(int*)optval); | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_TCP, TCP_KEEPCNT) -> %lu\n", | |
s, sock->conn->pcb.tcp->keep_cnt)); | |
break; | |
#endif /* LWIP_TCP_KEEPALIVE */ | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_TCP*/ | |
#if LWIP_UDP && LWIP_UDPLITE | |
/* Level: IPPROTO_UDPLITE */ | |
case IPPROTO_UDPLITE: | |
switch (optname) { | |
case UDPLITE_SEND_CSCOV: | |
if ((*(int*)optval != 0) && (*(int*)optval < 8)) { | |
/* don't allow illegal values! */ | |
sock->conn->pcb.udp->chksum_len_tx = 8; | |
} else { | |
sock->conn->pcb.udp->chksum_len_tx = *(int*)optval; | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV) -> %d\n", | |
s, (*(int*)optval)) ); | |
break; | |
case UDPLITE_RECV_CSCOV: | |
if ((*(int*)optval != 0) && (*(int*)optval < 8)) { | |
/* don't allow illegal values! */ | |
sock->conn->pcb.udp->chksum_len_rx = 8; | |
} else { | |
sock->conn->pcb.udp->chksum_len_rx = *(int*)optval; | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_setsockopt(%d, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV) -> %d\n", | |
s, (*(int*)optval)) ); | |
break; | |
} /* switch (optname) */ | |
break; | |
#endif /* LWIP_UDP */ | |
} /* switch (level) */ | |
sys_sem_signal(sock->conn->op_completed); | |
} | |
int | |
lwip_ioctl(int s, long cmd, void *argp) | |
{ | |
struct lwip_socket *sock = get_socket(s); | |
u16_t buflen = 0; | |
if (!sock) | |
return -1; | |
switch (cmd) { | |
case FIONREAD: | |
if (!argp) { | |
sock_set_errno(sock, EINVAL); | |
return -1; | |
} | |
SYS_ARCH_GET(sock->conn->recv_avail, *((u16_t*)argp)); | |
/* Check if there is data left from the last recv operation. /maq 041215 */ | |
if (sock->lastdata) { | |
buflen = netbuf_len(sock->lastdata); | |
buflen -= sock->lastoffset; | |
*((u16_t*)argp) += buflen; | |
} | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONREAD, %p) = %u\n", s, argp, *((u16_t*)argp))); | |
sock_set_errno(sock, 0); | |
return 0; | |
case FIONBIO: | |
if (argp && *(u32_t*)argp) | |
sock->flags |= O_NONBLOCK; | |
else | |
sock->flags &= ~O_NONBLOCK; | |
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_ioctl(%d, FIONBIO, %d)\n", s, !!(sock->flags & O_NONBLOCK))); | |
sock_set_errno(sock, 0); | |
return 0; | |
default: | |
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; | |
} /* switch (cmd) */ | |
} | |
#endif /* LWIP_SOCKET */ |