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apache / nuttx-apps / e68d5ffb98a0d84410cce36e60d8f3c24e67605f / . / wireless / gs2200m / gs2200m_main.c
blob: 20afec3e79f02e8361bc30d24023bb40932d2442 [file] [log] [blame]
/****************************************************************************
* apps/wireless/gs2200m/gs2200m_main.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <stdint.h>
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <debug.h>
#include <fcntl.h>
#include <errno.h>
#include <poll.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <nuttx/net/usrsock.h>
#include <nuttx/wireless/wireless.h>
#include <nuttx/wireless/gs2200m.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* #define GS2200M_TRACE */
#ifdef GS2200M_TRACE
# define gs2200m_printf(v, ...) printf(v, ##__VA_ARGS__)
#else
# define gs2200m_printf(v, ...)
#endif
#define SOCKET_BASE 10000
#define SOCKET_COUNT 16
/****************************************************************************
* Private Data Types
****************************************************************************/
enum sock_state_e
{
CLOSED,
OPENED,
BOUND,
CONNECTED,
};
struct usock_s
{
int8_t type;
char cid;
enum sock_state_e state;
uint16_t lport; /* local port */
struct sockaddr_in raddr; /* remote addr */
};
struct gs2200m_s
{
char *ssid;
char *key;
uint8_t mode;
uint8_t ch;
int gsfd;
struct usock_s sockets[SOCKET_COUNT];
};
union usrsock_request_u
{
struct usrsock_request_socket_s socket;
struct usrsock_request_close_s close;
struct usrsock_request_connect_s connect;
struct usrsock_request_sendto_s sendto;
struct usrsock_request_recvfrom_s recvfrom;
struct usrsock_request_setsockopt_s setsockopt;
struct usrsock_request_getsockopt_s getsockopt;
struct usrsock_request_getsockname_s getsockname;
struct usrsock_request_getpeername_s getpeername;
struct usrsock_request_bind_s bind;
struct usrsock_request_listen_s listen;
struct usrsock_request_accept_s accept;
struct usrsock_request_ioctl_s ioctl;
};
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
static int socket_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int close_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int connect_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int sendto_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int recvfrom_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int setsockopt_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int getsockopt_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int getsockname_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int getpeername_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int ioctl_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int bind_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int listen_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
static int accept_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf);
/****************************************************************************
* Private Data
****************************************************************************/
static const struct usrsock_req_handler_s
{
uint32_t hdrlen;
int (CODE *fn)(int fd, FAR struct gs2200m_s *priv, FAR void *req);
}
handlers[USRSOCK_REQUEST__MAX] =
{
{
sizeof(struct usrsock_request_socket_s),
socket_request,
},
{
sizeof(struct usrsock_request_close_s),
close_request,
},
{
sizeof(struct usrsock_request_connect_s),
connect_request,
},
{
sizeof(struct usrsock_request_sendto_s),
sendto_request,
},
{
sizeof(struct usrsock_request_recvfrom_s),
recvfrom_request,
},
{
sizeof(struct usrsock_request_setsockopt_s),
setsockopt_request,
},
{
sizeof(struct usrsock_request_getsockopt_s),
getsockopt_request,
},
{
sizeof(struct usrsock_request_getsockname_s),
getsockname_request,
},
{
sizeof(struct usrsock_request_getpeername_s),
getpeername_request,
},
{
sizeof(struct usrsock_request_bind_s),
bind_request,
},
{
sizeof(struct usrsock_request_listen_s),
listen_request,
},
{
sizeof(struct usrsock_request_accept_s),
accept_request,
},
{
sizeof(struct usrsock_request_ioctl_s),
ioctl_request,
},
};
static struct gs2200m_s *_daemon;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: _write_to_usock
****************************************************************************/
static int _write_to_usock(int fd, void *buf, size_t count)
{
ssize_t wlen;
wlen = write(fd, buf, count);
if (wlen < 0)
{
return -errno;
}
if (wlen != count)
{
return -ENOSPC;
}
return OK;
}
/****************************************************************************
* Name: _send_ack_common
****************************************************************************/
static int _send_ack_common(int fd,
uint16_t events,
uint32_t xid,
FAR struct usrsock_message_req_ack_s *resp)
{
resp->head.msgid = USRSOCK_MESSAGE_RESPONSE_ACK;
resp->head.flags = 0;
resp->head.events = events;
resp->xid = xid;
/* Send ACK response. */
return _write_to_usock(fd, resp, sizeof(*resp));
}
/****************************************************************************
* Name: gs2200m_socket_alloc
****************************************************************************/
static int16_t gs2200m_socket_alloc(FAR struct gs2200m_s *priv, int type)
{
FAR struct usock_s *usock;
int16_t i;
for (i = 0; i < SOCKET_COUNT; i++)
{
usock = &priv->sockets[i];
if (CLOSED == usock->state)
{
memset(usock, 0, sizeof(*usock));
usock->cid = 'z'; /* Invalidate cid */
usock->state = OPENED;
usock->type = type;
return i + SOCKET_BASE;
}
}
return -1;
}
/****************************************************************************
* Name: gs2200m_socket_get
****************************************************************************/
static FAR struct usock_s *gs2200m_socket_get(FAR struct gs2200m_s *priv,
int sockid)
{
if (sockid < SOCKET_BASE)
{
return NULL;
}
sockid -= SOCKET_BASE;
if (sockid >= SOCKET_COUNT)
{
return NULL;
}
return &priv->sockets[sockid];
}
/****************************************************************************
* Name: gs2200m_find_socket_by_cid
****************************************************************************/
static FAR struct usock_s *
gs2200m_find_socket_by_cid(FAR struct gs2200m_s *priv,
char cid)
{
FAR struct usock_s *ret = NULL;
int i;
for (i = 0; i < SOCKET_COUNT; i++)
{
if (priv->sockets[i].cid == cid)
{
ret = &priv->sockets[i];
break;
}
}
return ret;
}
/****************************************************************************
* Name: gs2200m_socket_free
****************************************************************************/
static int gs2200m_socket_free(FAR struct gs2200m_s *priv, int sockid)
{
FAR struct usock_s *usock = gs2200m_socket_get(priv, sockid);
if (!usock)
{
return -EBADFD;
}
if (CLOSED == usock->state)
{
return -EFAULT;
}
usock->state = CLOSED;
usock->cid = 'z'; /* invalid */
return 0;
}
/****************************************************************************
* Name: read_req
****************************************************************************/
static ssize_t
read_req(int fd, FAR const struct usrsock_request_common_s *com_hdr,
FAR void *req, size_t reqsize)
{
ssize_t rlen;
rlen = read(fd, (uint8_t *)req + sizeof(*com_hdr),
reqsize - sizeof(*com_hdr));
if (rlen < 0)
{
return -errno;
}
if (rlen + sizeof(*com_hdr) != reqsize)
{
return -EMSGSIZE;
}
return rlen;
}
/****************************************************************************
* Name: usrsock_handle_request
****************************************************************************/
static int usrsock_handle_request(int fd, FAR struct gs2200m_s *priv)
{
FAR struct usrsock_request_common_s *com_hdr;
union usrsock_request_u req;
ssize_t rlen;
com_hdr = (FAR void *)&req;
rlen = read(fd, com_hdr, sizeof(*com_hdr));
if (rlen < 0)
{
return -errno;
}
if (rlen != sizeof(*com_hdr))
{
return -EMSGSIZE;
}
if (com_hdr->reqid >= USRSOCK_REQUEST__MAX ||
!handlers[com_hdr->reqid].fn)
{
ASSERT(false);
return -EIO;
}
assert(handlers[com_hdr->reqid].hdrlen <= sizeof(req));
rlen = read_req(fd, com_hdr, &req,
handlers[com_hdr->reqid].hdrlen);
if (rlen < 0)
{
return rlen;
}
return handlers[com_hdr->reqid].fn(fd, priv, &req);
}
/****************************************************************************
* Name: usock_send_event
****************************************************************************/
static int usock_send_event(int fd, FAR struct gs2200m_s *priv,
FAR struct usock_s *usock, int events)
{
FAR struct usrsock_message_socket_event_s event;
int i;
memset(&event, 0, sizeof(event));
event.head.flags = USRSOCK_MESSAGE_FLAG_EVENT;
event.head.msgid = USRSOCK_MESSAGE_SOCKET_EVENT;
for (i = 0; i < SOCKET_COUNT; i++)
{
if (usock == &priv->sockets[i])
{
break;
}
}
if (i == SOCKET_COUNT)
{
return -EINVAL;
}
event.usockid = i + SOCKET_BASE;
event.head.events = events;
return _write_to_usock(fd, &event, sizeof(event));
}
/****************************************************************************
* Name: usock_sendevent_toall
****************************************************************************/
static void usock_sendevent_toall(FAR struct gs2200m_s *priv, int fd)
{
int i;
for (i = 0; i < SOCKET_COUNT; i++)
{
if (priv->sockets[i].state != CLOSED)
{
usock_send_event(fd, priv, &priv->sockets[i],
USRSOCK_EVENT_RECVFROM_AVAIL);
}
}
}
/****************************************************************************
* Name: socket_request
****************************************************************************/
static int socket_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_socket_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
uint16_t events = 0;
int16_t usockid;
int ret;
gs2200m_printf("%s: start type=%d\n",
__func__, req->type);
/* Check domain requested */
if (req->domain != AF_INET)
{
usockid = -EAFNOSUPPORT;
}
else
{
/* Allocate socket. */
usockid = gs2200m_socket_alloc(priv, req->type);
ASSERT(0 < usockid);
}
/* Send ACK response */
memset(&resp, 0, sizeof(resp));
resp.result = usockid;
if (req->type == SOCK_DGRAM)
{
events = USRSOCK_EVENT_SENDTO_READY;
}
ret = _send_ack_common(fd, events, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
gs2200m_printf("%s: end\n", __func__);
return OK;
}
/****************************************************************************
* Name: close_request
****************************************************************************/
static int close_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_close_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
struct gs2200m_close_msg clmsg;
FAR struct usock_s *usock;
char cid;
int ret = 0;
gs2200m_printf("%s: start\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
cid = usock->cid;
if ((BOUND != usock->state) && (CONNECTED != usock->state))
{
ret = -EBADFD;
goto errout;
}
memset(&clmsg, 0, sizeof(clmsg));
clmsg.cid = cid;
ioctl(priv->gsfd, GS2200M_IOC_CLOSE, (unsigned long)&clmsg);
errout:
/* Send ACK response */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
/* Free socket */
ret = gs2200m_socket_free(priv, req->usockid);
gs2200m_printf("%s: end\n", __func__);
return OK;
}
/****************************************************************************
* Name: connect_request
****************************************************************************/
static int connect_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_connect_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
struct gs2200m_connect_msg cmsg;
struct sockaddr_in addr;
FAR struct usock_s *usock;
int events;
ssize_t wlen;
ssize_t rlen;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: start\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
/* Check if this socket is already connected. */
if (CONNECTED == usock->state)
{
ret = -EISCONN;
goto prepare;
}
memset(&cmsg, 0, sizeof(cmsg));
/* Check if this socket is already connected. */
if (BOUND == usock->state)
{
if (usock->type == SOCK_STREAM)
{
ret = -EISCONN;
goto prepare;
}
else
{
/* Firstly, close the socket */
struct gs2200m_close_msg clmsg;
memset(&clmsg, 0, sizeof(clmsg));
clmsg.cid = usock->cid;
ioctl(priv->gsfd, GS2200M_IOC_CLOSE, (unsigned long)&clmsg);
/* Copy the local port info */
cmsg.lport = usock->lport;
usock->state = OPENED;
}
}
/* Check if address size ok. */
if (req->addrlen > sizeof(addr))
{
ret = -EFAULT;
goto prepare;
}
/* Read address. */
rlen = read(fd, &addr, sizeof(addr));
if (rlen < 0 || rlen < req->addrlen)
{
ret = -EFAULT;
goto prepare;
}
/* Check address family. */
if (addr.sin_family != AF_INET)
{
ret = -EAFNOSUPPORT;
goto prepare;
}
snprintf(cmsg.addr, sizeof(cmsg.addr), "%s",
inet_ntoa(addr.sin_addr));
snprintf(cmsg.port, sizeof(cmsg.port), "%d",
ntohs(addr.sin_port));
cmsg.cid = 'z'; /* set to invalid */
cmsg.type = usock->type;
ret = ioctl(priv->gsfd, GS2200M_IOC_CONNECT,
(unsigned long)&cmsg);
if (0 == ret)
{
usock->cid = cmsg.cid;
usock->state = CONNECTED;
usock->raddr = addr;
}
else
{
ret = -errno;
}
prepare:
/* Send ACK response. */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
events = USRSOCK_EVENT_SENDTO_READY;
wlen = usock_send_event(fd, priv, usock, events);
if (wlen < 0)
{
return wlen;
}
gs2200m_printf("%s: end\n", __func__);
return OK;
}
/****************************************************************************
* Name: sendto_request
****************************************************************************/
static int sendto_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_sendto_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
struct gs2200m_send_msg smsg;
FAR struct usock_s *usock;
uint8_t *sendbuf = NULL;
ssize_t wlen;
ssize_t rlen;
int nret;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: start (buflen=%d)\n",
__func__, req->buflen);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
/* Check if this socket is connected. */
if (SOCK_STREAM == usock->type && CONNECTED != usock->state)
{
ret = -ENOTCONN;
goto prepare;
}
/* Check if the address size is non-zero.
* connection-mode socket does not accept address
*/
if (usock->type == SOCK_STREAM && req->addrlen > 0)
{
ret = -EISCONN;
goto prepare;
}
memset(&smsg, 0, sizeof(smsg));
smsg.is_tcp = (usock->type == SOCK_STREAM) ? true : false;
/* For UDP, addlen must be provided */
if (usock->type == SOCK_DGRAM)
{
if (CONNECTED != usock->state)
{
if (req->addrlen == 0)
{
ret = -EINVAL;
goto prepare;
}
/* In UDP case, read the address. */
rlen = read(fd, &smsg.addr, sizeof(smsg.addr));
if (rlen < 0 || rlen < req->addrlen)
{
ret = -EFAULT;
goto prepare;
}
}
else if (CONNECTED == usock->state)
{
/* Copy remote address */
smsg.addr = usock->raddr;
}
else
{
ASSERT(false);
}
gs2200m_printf("%s: addr: %s:%d",
__func__,
inet_ntoa(smsg.addr.sin_addr),
ntohs(smsg.addr.sin_port));
}
/* Check if the request has data. */
if (req->buflen > 0)
{
sendbuf = calloc(1, req->buflen);
ASSERT(sendbuf);
/* Read data from usrsock. */
rlen = read(fd, sendbuf, req->buflen);
if (rlen < 0 || rlen < req->buflen)
{
ret = -EFAULT;
goto prepare;
}
smsg.cid = usock->cid;
smsg.buf = sendbuf;
smsg.len = req->buflen;
nret = ioctl(priv->gsfd, GS2200M_IOC_SEND,
(unsigned long)&smsg);
if (usock->cid != smsg.cid)
{
/* cid is newly assigned (bound) */
usock->cid = smsg.cid;
usock->state = BOUND;
}
if (0 != nret)
{
ret = -errno;
goto prepare;
}
/* return length which gs2200m sent */
ret = smsg.len;
}
prepare:
if (sendbuf)
{
free(sendbuf);
}
/* Send ACK response. */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
/* Let kernel-side know that there is space for more send data. */
wlen = usock_send_event(fd, priv, usock,
USRSOCK_EVENT_SENDTO_READY);
if (wlen < 0)
{
return wlen;
}
gs2200m_printf("%s: end\n", __func__);
return OK;
}
/****************************************************************************
* Name: recvfrom_request
****************************************************************************/
static int recvfrom_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_recvfrom_s *req = hdrbuf;
struct usrsock_message_datareq_ack_s resp;
struct usrsock_message_req_ack_s resp1;
struct gs2200m_recv_msg rmsg;
FAR struct usock_s *usock;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: start (req->max_buflen=%d)\n",
__func__, req->max_buflen);
memset(&rmsg, 0, sizeof(rmsg));
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
/* Check if this socket is connected. */
if (SOCK_STREAM == usock->type && CONNECTED != usock->state)
{
ret = -ENOTCONN;
goto prepare;
}
rmsg.cid = usock->cid;
rmsg.reqlen = req->max_buflen;
rmsg.is_tcp = (usock->type == SOCK_STREAM) ? true : false;
rmsg.flags = req->flags;
if (0 < req->max_buflen)
{
rmsg.buf = calloc(1, req->max_buflen);
ASSERT(rmsg.buf);
ret = ioctl(priv->gsfd, GS2200M_IOC_RECV,
(unsigned long)&rmsg);
}
if (0 == ret)
{
ret = rmsg.len;
}
else
{
ret = -errno;
}
if (!rmsg.is_tcp)
{
gs2200m_printf("%s: from (%s:%d)\n",
__func__,
inet_ntoa(rmsg.addr.sin_addr),
ntohs(rmsg.addr.sin_port));
}
prepare:
/* Prepare response. */
memset(&resp, 0, sizeof(resp));
resp.reqack.result = ret;
resp.reqack.xid = req->head.xid;
resp.reqack.head.msgid = USRSOCK_MESSAGE_RESPONSE_DATA_ACK;
resp.reqack.head.flags = 0;
resp.reqack.head.events = 0;
if (0 <= ret)
{
resp.valuelen_nontrunc = sizeof(rmsg.addr);
resp.valuelen = MIN(resp.valuelen_nontrunc,
req->max_addrlen);
if ((0 == rmsg.len) && (0 != rmsg.reqlen))
{
usock_send_event(fd, priv, usock,
USRSOCK_EVENT_REMOTE_CLOSED
);
/* Send ack only */
memset(&resp1, 0, sizeof(resp1));
resp1.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp1);
goto err_out;
}
}
/* Send response. */
ret = _write_to_usock(fd, &resp, sizeof(resp));
if (0 > ret)
{
goto err_out;
}
if (0 < resp.valuelen)
{
/* Send address (value) */
ret = _write_to_usock(fd, &rmsg.addr, resp.valuelen);
if (0 > ret)
{
goto err_out;
}
}
if (resp.reqack.result > 0)
{
/* Send buffer */
ret = _write_to_usock(fd, rmsg.buf, resp.reqack.result);
if (0 > ret)
{
goto err_out;
}
}
err_out:
gs2200m_printf("%s: *** end ret=%d\n", __func__, ret);
if (rmsg.buf)
{
free(rmsg.buf);
}
return ret;
}
/****************************************************************************
* Name: bind_request
****************************************************************************/
static int bind_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_bind_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
struct gs2200m_bind_msg bmsg;
FAR struct usock_s *usock;
struct sockaddr_in addr;
ssize_t rlen;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: called ****\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
/* Check if address size ok. */
if (req->addrlen > sizeof(addr))
{
ret = -EFAULT;
goto prepare;
}
/* Read address. */
rlen = read(fd, &addr, sizeof(addr));
if (rlen < 0 || rlen < req->addrlen)
{
ret = -EFAULT;
goto prepare;
}
/* Check address family. */
if (addr.sin_family != AF_INET)
{
ret = -EAFNOSUPPORT;
goto prepare;
}
snprintf(bmsg.port, sizeof(bmsg.port), "%d", ntohs(addr.sin_port));
bmsg.cid = 'z'; /* set to invalid */
bmsg.is_tcp = (usock->type == SOCK_STREAM) ? true : false;
ret = ioctl(priv->gsfd, GS2200M_IOC_BIND, (unsigned long)&bmsg);
if (0 == ret)
{
usock->cid = bmsg.cid;
usock->lport = ntohs(addr.sin_port);
usock->state = BOUND;
}
prepare:
/* Send ACK response. */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
gs2200m_printf("%s: end\n", __func__);
return OK;
}
/****************************************************************************
* Name: listen_request
****************************************************************************/
static int listen_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_listen_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
FAR struct usock_s *usock;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: called ****\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
}
/* Send ACK response. */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
gs2200m_printf("%s: end\n", __func__);
return ret;
}
/****************************************************************************
* Name: accept_request
****************************************************************************/
static int accept_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_accept_s *req = hdrbuf;
struct usrsock_message_datareq_ack_s resp;
struct gs2200m_accept_msg amsg;
FAR struct usock_s *usock;
FAR struct usock_s *new_usock = NULL;
int ret = 0;
int16_t usockid; /* usockid for new client */
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: called ****\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
/* TODO: need to check if specified socket exists */
/* Call gs2200m driver to obtain new cid for client */
amsg.cid = usock->cid; /* Set server cid */
ret = ioctl(priv->gsfd, GS2200M_IOC_ACCEPT, (unsigned long)&amsg);
if (-1 == ret)
{
goto prepare;
}
/* allocate socket. */
usockid = gs2200m_socket_alloc(priv, SOCK_STREAM);
ASSERT(0 < usockid);
new_usock = gs2200m_socket_get(priv, usockid);
/* Set cid for the new_usock to be used in gs2200m driver */
new_usock->cid = amsg.cid;
new_usock->state = CONNECTED;
new_usock->raddr = amsg.addr;
prepare:
/* Prepare response. */
memset(&resp, 0, sizeof(resp));
resp.reqack.xid = req->head.xid;
resp.reqack.head.msgid = USRSOCK_MESSAGE_RESPONSE_DATA_ACK;
resp.reqack.head.flags = 0;
resp.reqack.head.events = 0;
if (0 == ret)
{
resp.reqack.result = 2; /* new_usock->raddr + usock */
resp.valuelen_nontrunc = sizeof(new_usock->raddr);
resp.valuelen = resp.valuelen_nontrunc;
}
else
{
resp.reqack.result = ret;
resp.valuelen = 0;
}
/* Send response. */
ret = _write_to_usock(fd, &resp, sizeof(resp));
if (0 > ret)
{
goto err_out;
}
if (resp.valuelen > 0)
{
/* Send address (value) */
ret = _write_to_usock(fd, &new_usock->raddr, resp.valuelen);
if (0 > ret)
{
goto err_out;
}
/* Send new usockid info */
ret = _write_to_usock(fd, &usockid, sizeof(usockid));
if (0 > ret)
{
goto err_out;
}
/* Set events ofr new_usock */
usock_send_event(fd, priv, new_usock,
USRSOCK_EVENT_SENDTO_READY
);
}
err_out:
gs2200m_printf("%s: end\n", __func__);
return ret;
}
/****************************************************************************
* Name: setsockopt_request
****************************************************************************/
static int setsockopt_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_setsockopt_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
FAR struct usock_s *usock;
ssize_t rlen;
int ret = 0;
int value;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: called ****\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
if (req->level != SOL_SOCKET)
{
gs2200m_printf("setsockopt: level=%d not supported\n",
__func__, req->level);
ret = -ENOPROTOOPT;
goto prepare;
}
if (req->option != SO_REUSEADDR)
{
gs2200m_printf("setsockopt: option=%d not supported\n",
__func__, req->option);
ret = -ENOPROTOOPT;
goto prepare;
}
if (req->valuelen < sizeof(value))
{
ret = -EINVAL;
goto prepare;
}
/* Read value. */
rlen = read(fd, &value, sizeof(value));
if (rlen < 0 || rlen < sizeof(value))
{
ret = -EFAULT;
goto prepare;
}
/* Debug print */
gs2200m_printf("setsockopt: option=%d value=%d\n",
__func__, req->option, value);
ret = OK;
prepare:
/* Send ACK response */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
gs2200m_printf("%s: end (ret=%d)\n", __func__, ret);
return ret;
}
/****************************************************************************
* Name: getsockopt_request
****************************************************************************/
static int getsockopt_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
DEBUGASSERT(false);
return -ENOSYS;
}
/****************************************************************************
* Name: getsockname_request
****************************************************************************/
static int getsockname_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_getsockname_s *req = hdrbuf;
struct usrsock_message_datareq_ack_s resp;
struct gs2200m_name_msg nmsg;
FAR struct usock_s *usock;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: called ****\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
memset(&nmsg, 0, sizeof(nmsg));
nmsg.cid = usock->cid;
nmsg.local = true; /* Obtain local address & port */
ret = ioctl(priv->gsfd, GS2200M_IOC_NAME, (unsigned long)&nmsg);
prepare:
/* Prepare response. */
memset(&resp, 0, sizeof(resp));
resp.reqack.xid = req->head.xid;
resp.reqack.head.msgid = USRSOCK_MESSAGE_RESPONSE_DATA_ACK;
resp.reqack.head.flags = 0;
resp.reqack.head.events = 0;
resp.reqack.result = ret;
if (0 == ret)
{
resp.valuelen_nontrunc = sizeof(nmsg.addr);
resp.valuelen = resp.valuelen_nontrunc;
if (resp.valuelen > req->max_addrlen)
{
resp.valuelen = req->max_addrlen;
}
}
else
{
resp.valuelen_nontrunc = 0;
resp.valuelen = 0;
}
/* Send response. */
ret = _write_to_usock(fd, &resp, sizeof(resp));
if (0 > ret)
{
goto err_out;
}
if (resp.valuelen > 0)
{
/* Send address (value) */
ret = _write_to_usock(fd, &nmsg.addr, resp.valuelen);
if (0 > ret)
{
goto err_out;
}
}
err_out:
gs2200m_printf("%s: end\n", __func__);
return ret;
}
/****************************************************************************
* Name: getpeername_request
****************************************************************************/
static int getpeername_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_getpeername_s *req = hdrbuf;
struct usrsock_message_datareq_ack_s resp;
FAR struct usock_s *usock;
int ret = 0;
DEBUGASSERT(priv);
DEBUGASSERT(req);
gs2200m_printf("%s: called ****\n", __func__);
/* Check if this socket exists. */
usock = gs2200m_socket_get(priv, req->usockid);
if (!usock)
{
ret = -EBADFD;
goto prepare;
}
if (CONNECTED != usock->state)
{
ret = -ENOTCONN;
}
prepare:
/* Prepare response. */
memset(&resp, 0, sizeof(resp));
resp.reqack.xid = req->head.xid;
resp.reqack.head.msgid = USRSOCK_MESSAGE_RESPONSE_DATA_ACK;
resp.reqack.head.flags = 0;
resp.reqack.head.events = 0;
resp.reqack.result = ret;
if (0 == ret)
{
resp.valuelen_nontrunc = sizeof(usock->raddr);
resp.valuelen = resp.valuelen_nontrunc;
if (resp.valuelen > req->max_addrlen)
{
resp.valuelen = req->max_addrlen;
}
}
else
{
resp.valuelen_nontrunc = 0;
resp.valuelen = 0;
}
/* Send response. */
ret = _write_to_usock(fd, &resp, sizeof(resp));
if (0 > ret)
{
goto err_out;
}
if (resp.valuelen > 0)
{
/* Send address (value) */
ret = _write_to_usock(fd, &usock->raddr, resp.valuelen);
if (0 > ret)
{
goto err_out;
}
}
err_out:
gs2200m_printf("%s: end\n", __func__);
return ret;
}
/****************************************************************************
* Name: ioctl_request
****************************************************************************/
static int ioctl_request(int fd, FAR struct gs2200m_s *priv,
FAR void *hdrbuf)
{
FAR struct usrsock_request_ioctl_s *req = hdrbuf;
struct usrsock_message_req_ack_s resp;
struct usrsock_message_datareq_ack_s resp2;
struct gs2200m_ifreq_msg imsg;
bool getreq = false;
int ret = -EINVAL;
memset(&imsg.ifr, 0, sizeof(imsg.ifr));
switch (req->cmd)
{
case SIOCGIFADDR:
case SIOCGIFFLAGS:
case SIOCGIFHWADDR:
case SIOCGIWNWID:
case SIOCGIWFREQ:
case SIOCGIWSENS:
getreq = true;
break;
case SIOCSIFADDR:
case SIOCSIFDSTADDR:
case SIOCSIFNETMASK:
read(fd, &imsg.ifr, sizeof(imsg.ifr));
break;
default:
break;
}
imsg.cmd = req->cmd;
ret = ioctl(priv->gsfd, GS2200M_IOC_IFREQ, (unsigned long)&imsg);
if (!getreq)
{
/* Send ACK response */
memset(&resp, 0, sizeof(resp));
resp.result = ret;
ret = _send_ack_common(fd, 0, req->head.xid, &resp);
if (0 > ret)
{
return ret;
}
}
if (getreq)
{
resp2.reqack.result = ret;
resp2.reqack.xid = req->head.xid;
resp2.reqack.head.msgid = USRSOCK_MESSAGE_RESPONSE_DATA_ACK;
resp2.reqack.head.flags = 0;
resp2.reqack.head.events = 0;
resp2.valuelen_nontrunc = sizeof(imsg.ifr);
resp2.valuelen = sizeof(imsg.ifr);
_write_to_usock(fd, &resp2, sizeof(resp2));
/* Return struct ifreq address */
_write_to_usock(fd, &imsg.ifr, resp2.valuelen);
}
return ret;
}
/****************************************************************************
* Name: gs2200m_loop
****************************************************************************/
static int gs2200m_loop(FAR struct gs2200m_s *priv)
{
struct gs2200m_assoc_msg amsg;
FAR struct usock_s *usock;
struct pollfd fds[2];
int fd[2];
char cid;
int ret;
fd[0] = open("/dev/usrsock", O_RDWR);
ASSERT(0 <= fd[0]);
fd[1] = open("/dev/gs2200m", O_RDWR);
ASSERT(0 <= fd[1]);
priv->gsfd = fd[1];
amsg.ssid = priv->ssid;
amsg.key = priv->key;
amsg.mode = priv->mode;
amsg.ch = priv->ch;
while (true)
{
ret = ioctl(priv->gsfd, GS2200M_IOC_ASSOC, (unsigned long)&amsg);
if (0 == ret)
{
break;
}
fprintf(stderr, "association failed : retrying\n");
}
while (true)
{
memset(fds, 0, sizeof(fds));
/* Check events from usrsock and gs2200m */
fds[0].fd = fd[0];
fds[0].events = POLLIN;
fds[1].fd = fd[1];
fds[1].events = POLLIN;
ret = poll(fds, 2, -1);
ASSERT(0 < ret);
if (fds[0].revents & POLLIN)
{
ret = usrsock_handle_request(fd[0], priv);
ASSERT(0 == ret);
}
if (fds[1].revents & POLLIN)
{
gs2200m_printf("=== %s: event from /dev/gs2200m\n",
__func__);
/* retrieve cid from gs2200m driver */
cid = 'z';
ret = read(fd[1], &cid, sizeof(cid));
ASSERT(ret == sizeof(cid));
/* Check if all socket destroy or not */
if (cid == DISASSOCIATION_CID)
{
gs2200m_printf("=== %s: Disassocitaion event\n",
__func__);
/* To release sockets blocking in user-sock,
* send event to all opened sockets.
*/
usock_sendevent_toall(priv, fd[0]);
}
else
{
/* find usock by the cid */
usock = gs2200m_find_socket_by_cid(priv, cid);
if (NULL == usock)
{
gs2200m_printf("=== %s: cid=%c not found (ignored)\n",
__func__, cid);
}
else
{
/* send event to call xxxx_request() */
usock_send_event(fd[0], priv, usock,
USRSOCK_EVENT_RECVFROM_AVAIL);
}
}
}
}
close(fd[1]);
close(fd[0]);
gs2200m_printf("finished: ret=%d\n", __func__, ret);
return ret;
}
/****************************************************************************
* Name: _show_usage
****************************************************************************/
static void _show_usage(FAR char *cmd)
{
fprintf(stderr,
"Usage: %s [-a [ch]] ssid passphrase(key) \n\n", cmd);
fprintf(stderr,
"AP mode : specify -a option (optionally with channel) with ssid\n"
" and 8 to 63 ascii passphrase for WPA2-PSK\n"
" or 10 hex digits key for WEP\n");
fprintf(stderr,
"STA mode: specify ssid and passphrase for WPA/WPA2 PSK\n");
}
/****************************************************************************
* Public Functions
****************************************************************************/
int main(int argc, FAR char *argv[])
{
int option;
int ret;
bool ap_mode = false;
if (_daemon)
{
fprintf(stderr, "%s is already running!\n", argv[0]);
return -1;
}
_daemon = calloc(sizeof(struct gs2200m_s), 1);
ASSERT(_daemon);
_daemon->mode = 0; /* default mode = 0 (station) */
while ((option = getopt(argc, argv, "a:")) != ERROR)
{
switch (option)
{
case 'a':
_daemon->mode = 1; /* ap mode */
_daemon->ch = 1;
if (5 == argc)
{
_daemon->ch = (int)atoi(optarg);
}
ap_mode = true;
break;
}
}
if ((ap_mode && (4 != argc) && (5 != argc))
|| (!ap_mode && 3 != argc))
{
_show_usage(argv[0]);
ret = ERROR;
goto errout;
}
_daemon->ssid = argv[argc - 2];
_daemon->key = argv[argc - 1];
ret = gs2200m_loop(_daemon);
errout:
if (_daemon)
{
free(_daemon);
_daemon = NULL;
}
return ret;
}