static int rtmac_chrdev_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct rtmac_config cfg;
struct rtnet_device *rtdev;
if( !suser() )
return -EPERM;
if( copy_from_user(&cfg, (void*)arg, sizeof(struct rtmac_config)) )
return -EFAULT;
rtdev = rtdev_get_by_name(cfg.if_name);
if( !rtdev ) {
rt_printk("RTmac: invalid interface %s\n", cfg.if_name);
return -ENODEV;
}
if( !(rtdev->rtmac && rtdev->rtmac->ioctl_ops) ) {
return -ENOTTY;
}
switch( cmd ) {
case RTMAC_IOC_CLIENT:
return rtmac_ioctl_client(rtdev);
break;
case RTMAC_IOC_MASTER:
return rtmac_ioctl_master(rtdev, cfg.cycle, cfg.mtu);
break;
case RTMAC_IOC_UP:
return rtmac_ioctl_up(rtdev);
break;
case RTMAC_IOC_DOWN:
return rtmac_ioctl_down(rtdev);
break;
case RTMAC_IOC_ADD:
return rtmac_ioctl_add(rtdev, cfg.ip_addr);
break;
case RTMAC_IOC_REMOVE:
return rtmac_ioctl_remove(rtdev, cfg.ip_addr);
break;
case RTMAC_IOC_ADD_NRT:
return rtmac_ioctl_add_nrt(rtdev, cfg.ip_addr);
break;
case RTMAC_IOC_REMOVE_NRT:
return rtmac_ioctl_remove_nrt(rtdev, cfg.ip_addr);
break;
case RTMAC_IOC_CYCLE:
return rtmac_ioctl_cycle(rtdev, cfg.cycle);
break;
case RTMAC_IOC_MTU:
return rtmac_ioctl_mtu(rtdev, cfg.mtu);
break;
case RTMAC_IOC_OFFSET:
return rtmac_ioctl_offset(rtdev, cfg.ip_addr, cfg.offset);
default:
return -ENOTTY;
}
}
void rtmac_release(void)
{
rt_printk("RTmac: end realtime medium access control\n");
tdma_stop(rtdev_get_by_name(dev));
#ifdef CONFIG_PROC_FS
rtmac_proc_release();
#endif
rtmac_chrdev_release();
}
/***
* rtdev_alloc_name - allocate a name for the rtnet_device
* @rtdev: the rtnet_device
* @name_mask: a name mask (e.g. "rteth%d" for ethernet)
*
* This function have to be called from the driver probe function.
*/
void rtdev_alloc_name(struct rtnet_device *rtdev, const char *mask)
{
char buf[IFNAMSIZ];
int i;
struct rtnet_device *tmp;
for (i = 0; i < MAX_RT_DEVICES; i++) {
snprintf(buf, IFNAMSIZ, mask, i);
if ((tmp = rtdev_get_by_name(buf)) == NULL) {
strncpy(rtdev->name, buf, IFNAMSIZ);
break;
}
else
rtdev_dereference(tmp);
}
}
int rtmac_init(void)
{
int ret = 0;
rt_printk("RTmac: init realtime medium access control\n");
ret = tdma_start(rtdev_get_by_name(dev));
if (ret)
return ret;
#ifdef CONFIG_PROC_FS
ret = rtmac_proc_register();
if (ret)
return ret;
#endif
ret = rtmac_chrdev_init();
if (ret)
return ret;
return ret;
}
/***
* rt_socket_if_ioctl
*/
int rt_socket_if_ioctl(struct rtdm_dev_context *context, int call_flags,
int request, void *arg)
{
struct rtnet_device *rtdev;
struct ifreq *cur_ifr;
struct sockaddr_in *sin;
int i;
int size;
struct ifconf *ifc = arg;
struct ifreq *ifr = arg;
int ret = 0;
switch (request) {
case SIOCGIFCONF:
size = 0;
cur_ifr = ifc->ifc_req;
for (i = 1; i <= MAX_RT_DEVICES; i++) {
rtdev = rtdev_get_by_index(i);
if (rtdev != NULL) {
if ((rtdev->flags & IFF_RUNNING) == 0) {
rtdev_dereference(rtdev);
continue;
}
size += sizeof(struct ifreq);
if (size > ifc->ifc_len) {
rtdev_dereference(rtdev);
size = ifc->ifc_len;
break;
}
strncpy(cur_ifr->ifr_name, rtdev->name,
IFNAMSIZ);
sin = (struct sockaddr_in *)&cur_ifr->ifr_addr;
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = rtdev->local_ip;
cur_ifr++;
rtdev_dereference(rtdev);
}
}
ifc->ifc_len = size;
break;
case SIOCGIFFLAGS:
rtdev = rtdev_get_by_name(ifr->ifr_name);
if (rtdev == NULL)
return -ENODEV;
else {
ifr->ifr_flags = rtdev->flags;
rtdev_dereference(rtdev);
}
break;
default:
ret = -EOPNOTSUPP;
break;
}
return ret;
}
int rtwlan_tx(struct rtskb *rtskb, struct rtnet_device *rtnet_dev)
{
struct rtwlan_device * rtwlan = rtnetdev_priv(rtnet_dev);
struct ieee80211_hdr_3addr header = { /* Ensure zero initialized */
.duration_id = 0,
.seq_ctl = 0
};
u8 dest[ETH_ALEN], src[ETH_ALEN];
/* Save source and destination addresses */
memcpy(dest, rtskb->data, ETH_ALEN);
memcpy(src, rtskb->data + ETH_ALEN, ETH_ALEN);
/* Generate ieee80211 compatible header */
memcpy(header.addr3, src, ETH_ALEN); /* BSSID */
memcpy(header.addr2, src, ETH_ALEN); /* SA */
memcpy(header.addr1, dest, ETH_ALEN); /* DA */
/* Frame Control */
switch(rtwlan->mode) {
case RTWLAN_MODE_RAW:
header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_BEACON);
break;
case RTWLAN_MODE_ACK:
header.frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA);
break;
default:
return -1;
}
memcpy(rtskb_push(rtskb, IEEE80211_3ADDR_LEN), &header, IEEE80211_3ADDR_LEN);
return 0;
}
EXPORT_SYMBOL(rtwlan_tx);
/**
* rtalloc_wlandev - Allocates and sets up a wlan device
* @sizeof_priv: size of additional driver-private structure to
* be allocated for this wlan device
*
* Fill in the fields of the device structure with wlan-generic
* values. Basically does everything except registering the device.
*
* A 32-byte alignment is enforced for the private data area.
*/
struct rtnet_device * rtwlan_alloc_dev(int sizeof_priv)
{
struct rtnet_device *rtnet_dev;
RTWLAN_DEBUG("Start.\n");
rtnet_dev = rt_alloc_etherdev(sizeof(struct rtwlan_device) + sizeof_priv);
if (!rtnet_dev)
return NULL;
rtdev_alloc_name(rtnet_dev, "rtwlan%d");
return rtnet_dev;
}
EXPORT_SYMBOL(rtwlan_alloc_dev);
int rtwlan_ioctl(struct rtnet_device * rtdev,
unsigned int request,
unsigned long arg)
{
struct rtwlan_cmd cmd;
int ret=0;
if (copy_from_user(&cmd, (void *)arg, sizeof(cmd)) != 0)
return -EFAULT;
switch(request) {
case IOC_RTWLAN_IFINFO:
if (cmd.args.info.ifindex > 0)
rtdev = rtdev_get_by_index(cmd.args.info.ifindex);
else
rtdev = rtdev_get_by_name(cmd.head.if_name);
if (rtdev == NULL)
return -ENODEV;
if (down_interruptible(&rtdev->nrt_lock)) {
rtdev_dereference(rtdev);
return -ERESTARTSYS;
}
if (rtdev->do_ioctl)
ret = rtdev->do_ioctl(rtdev, request, &cmd);
else
ret = -ENORTWLANDEV;
memcpy(cmd.head.if_name, rtdev->name, IFNAMSIZ);
cmd.args.info.ifindex = rtdev->ifindex;
cmd.args.info.flags = rtdev->flags;
up(&rtdev->nrt_lock);
rtdev_dereference(rtdev);
break;
case IOC_RTWLAN_MODE:
case IOC_RTWLAN_BITRATE:
case IOC_RTWLAN_CHANNEL:
case IOC_RTWLAN_TXPOWER:
case IOC_RTWLAN_DROPBCAST:
case IOC_RTWLAN_DROPMCAST:
case IOC_RTWLAN_REGREAD:
case IOC_RTWLAN_REGWRITE:
case IOC_RTWLAN_BBPWRITE:
case IOC_RTWLAN_BBPREAD:
case IOC_RTWLAN_BBPSENS:
if (down_interruptible(&rtdev->nrt_lock))
return -ERESTARTSYS;
if (rtdev->do_ioctl)
ret = rtdev->do_ioctl(rtdev, request, &cmd);
else
ret = -ENORTWLANDEV;
up(&rtdev->nrt_lock);
break;
default:
ret = -ENOTTY;
}
if (copy_to_user((void *)arg, &cmd, sizeof(cmd)) != 0)
return -EFAULT;
return ret;
}
struct rtnet_ioctls rtnet_wlan_ioctls = {
service_name: "rtwlan ioctl",
ioctl_type: RTNET_IOC_TYPE_RTWLAN,
handler: rtwlan_ioctl
};
/***
* rt_socket_if_ioctl
*/
int rt_socket_if_ioctl(struct rtdm_dev_context *sockctx,
rtdm_user_info_t *user_info, int request, void *arg)
{
struct rtnet_device *rtdev;
struct ifreq *ifr = arg;
struct sockaddr_in *sin;
int ret = 0;
if (request == SIOCGIFCONF) {
struct ifconf *ifc = arg;
struct ifreq *cur_ifr = ifc->ifc_req;
int size = 0;
int i;
for (i = 1; i <= MAX_RT_DEVICES; i++) {
rtdev = rtdev_get_by_index(i);
if (rtdev != NULL) {
if ((rtdev->flags & IFF_RUNNING) == 0) {
rtdev_dereference(rtdev);
continue;
}
size += sizeof(struct ifreq);
if (size > ifc->ifc_len) {
rtdev_dereference(rtdev);
size = ifc->ifc_len;
break;
}
strncpy(cur_ifr->ifr_name, rtdev->name,
IFNAMSIZ);
sin = (struct sockaddr_in *)&cur_ifr->ifr_addr;
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = rtdev->local_ip;
cur_ifr++;
rtdev_dereference(rtdev);
}
}
ifc->ifc_len = size;
return 0;
}
rtdev = rtdev_get_by_name(ifr->ifr_name);
if (rtdev == NULL)
return -ENODEV;
switch (request) {
case SIOCGIFINDEX:
ifr->ifr_ifindex = rtdev->ifindex;
break;
case SIOCGIFFLAGS:
ifr->ifr_flags = rtdev->flags;
break;
case SIOCGIFHWADDR:
memcpy(ifr->ifr_hwaddr.sa_data, rtdev->dev_addr, rtdev->addr_len);
ifr->ifr_hwaddr.sa_family = rtdev->type;
break;
case SIOCGIFADDR:
sin = (struct sockaddr_in *)&ifr->ifr_addr;
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = rtdev->local_ip;
break;
case SIOCETHTOOL:
if (rtdev->do_ioctl != NULL)
ret = rtdev->do_ioctl(rtdev, request, arg);
else
ret = -EOPNOTSUPP;
break;
default:
ret = -EOPNOTSUPP;
break;
}
rtdev_dereference(rtdev);
return ret;
}
/**
* rtnet_ioctl -
* @inode:
* @file:
* @cmd:
* @arg:
*/
static int rtnet_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg)
{
struct rtnet_config cfg;
struct rtnet_device *rtdev;
int ret;
if (!suser())return -EPERM;
ret = copy_from_user(&cfg, (void *)arg, sizeof(cfg));
if (ret) return -EFAULT;
rtdev = rtdev_get_by_name(cfg.if_name);
if ( !rtdev ) {
rt_printk("RTnet: invalid interface %s\n", cfg.if_name);
return -ENODEV;
}
switch(cmd){
case IOC_RT_IFUP:
ret = rtdev_open(rtdev); // = 0, if dev already up
/*
* if device already up and ip changes, delete routing table and add new route
* if the dev changes state from close->open also add new route
*
* pretty ugly, isn't it ;)
*
*/
if( ret == 0 ) {
if( rtdev->local_addr != cfg.ip_addr ) {
rt_ip_route_del(rtdev);
rtdev->local_addr = cfg.ip_addr;
rt_ip_route_add(rtdev, cfg.ip_netaddr, cfg.ip_mask);
rt_arp_table_add(cfg.ip_addr, rtdev->dev_addr);
rt_ip_route_add_specific(rtdev, cfg.ip_broadcast, rtdev->broadcast);
}
} else {
rtdev->local_addr = cfg.ip_addr;
rt_ip_route_add(rtdev, cfg.ip_netaddr, cfg.ip_mask);
rt_arp_table_add(cfg.ip_addr, rtdev->dev_addr);
rt_ip_route_add_specific(rtdev, cfg.ip_broadcast, rtdev->broadcast);
}
return 0;
case IOC_RT_IFDOWN:
/*
* if rtmac is active on dev, don't shut it down....
*
* FIXME: if mac exists shut mac down, then device...
*/
if( rtdev->rtmac ) {
rt_printk("rtnet: rtmac is active on dev %s, cannot shut down\n", rtdev->name);
return -ENOTTY;
}
rt_ip_route_del(rtdev);
rtdev_close(rtdev);
return 0;
case IOC_RT_ROUTE_SOLICIT:
rt_arp_solicit(rtdev,cfg.ip_addr);
return 0;
case IOC_RT_ROUTE_DELETE:
// Billa: delete an ARP & ROUTE element in the lists
rt_arp_table_del(cfg.ip_addr);
rt_ip_route_del_specific(rtdev,cfg.ip_addr);
return 0;
default:
return -ENOTTY;
}
}
