static void rtcfg_conn_check_cfg_timeout(struct rtcfg_connection *conn)
{
struct rtcfg_device *rtcfg_dev;
if (!conn->cfg_timeout)
return;
if (rtdm_clock_read() >= conn->last_frame + conn->cfg_timeout) {
rtcfg_dev = &device[conn->ifindex];
rtcfg_dev->stations_found--;
if (conn->state == RTCFG_CONN_STAGE_2)
rtcfg_dev->spec.srv.clients_configured--;
rtcfg_next_conn_state(conn, RTCFG_CONN_SEARCHING);
conn->cfg_offs = 0;
conn->flags = 0;
#ifdef CONFIG_RTNET_RTIPV4
if (conn->addr_type == RTCFG_ADDR_IP) {
struct rtnet_device *rtdev;
/* MAC address yet unknown -> use broadcast address */
rtdev = rtdev_get_by_index(conn->ifindex);
if (rtdev == NULL)
return;
memcpy(conn->mac_addr, rtdev->broadcast, MAX_ADDR_LEN);
rtdev_dereference(rtdev);
}
#endif /* CONFIG_RTNET_RTIPV4 */
}
}
int rtcfg_send_ready(int ifindex)
{
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_ready *ready_frm;
rtdev = rtdev_get_by_index(ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len + sizeof(struct rtcfg_frm_ready);
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
ready_frm = (struct rtcfg_frm_ready *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_ready));
ready_frm->head.id = RTCFG_ID_READY;
ready_frm->head.version = 0;
return rtcfg_send_frame(rtskb, rtdev, eth_broadcast);
}
/***
* rt_packet_getsockname
*/
int rt_packet_getsockname(struct rtsocket *s, struct sockaddr *addr,
socklen_t *addrlen)
{
struct sockaddr_ll *sll = (struct sockaddr_ll*)addr;
struct rtnet_device *rtdev;
if (*addrlen < sizeof(struct sockaddr_ll))
return -EINVAL;
sll->sll_family = AF_PACKET;
sll->sll_ifindex = s->prot.packet.ifindex;
sll->sll_protocol = s->protocol;
rtdev = rtdev_get_by_index(s->prot.packet.ifindex);
if (rtdev != NULL) {
sll->sll_hatype = rtdev->type;
sll->sll_halen = rtdev->addr_len;
memcpy(sll->sll_addr, rtdev->dev_addr, rtdev->addr_len);
rtdev_dereference(rtdev);
} else {
sll->sll_hatype = 0;
sll->sll_halen = 0;
}
*addrlen = sizeof(struct sockaddr_ll);
return 0;
}
int rtcfg_send_ack(int ifindex)
{
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_ack_cfg *ack_frm;
rtdev = rtdev_get_by_index(ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len + sizeof(struct rtcfg_frm_ack_cfg);
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
ack_frm = (struct rtcfg_frm_ack_cfg *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_ack_cfg));
ack_frm->head.id = RTCFG_ID_ACK_CFG;
ack_frm->head.version = 0;
ack_frm->ack_len = htonl(device[ifindex].cfg_offs);
return rtcfg_send_frame(rtskb, rtdev, device[ifindex].srv_mac_addr);
}
int rtcfg_send_stage_1(struct rtcfg_connection *conn)
{
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_stage_1_cfg *stage_1_frm;
rtdev = rtdev_get_by_index(conn->ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len +
sizeof(struct rtcfg_frm_stage_1_cfg) + conn->stage1_size +
#ifdef CONFIG_RTNET_RTIPV4
(((conn->addr_type & RTCFG_ADDR_MASK) == RTCFG_ADDR_IP) ?
2*RTCFG_ADDRSIZE_IP : 0);
#else /* !CONFIG_RTNET_RTIPV4 */
0;
#endif /* CONFIG_RTNET_RTIPV4 */
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
stage_1_frm = (struct rtcfg_frm_stage_1_cfg *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_stage_1_cfg));
stage_1_frm->head.id = RTCFG_ID_STAGE_1_CFG;
stage_1_frm->head.version = 0;
stage_1_frm->addr_type = conn->addr_type & RTCFG_ADDR_MASK;
#ifdef CONFIG_RTNET_RTIPV4
if (stage_1_frm->addr_type == RTCFG_ADDR_IP) {
rtskb_put(rtskb, 2*RTCFG_ADDRSIZE_IP);
memcpy(stage_1_frm->client_addr, &(conn->addr.ip_addr), 4);
stage_1_frm = (struct rtcfg_frm_stage_1_cfg *)
(((u8 *)stage_1_frm) + RTCFG_ADDRSIZE_IP);
memcpy(stage_1_frm->server_addr, &(rtdev->local_ip), 4);
stage_1_frm = (struct rtcfg_frm_stage_1_cfg *)
(((u8 *)stage_1_frm) + RTCFG_ADDRSIZE_IP);
}
#endif /* CONFIG_RTNET_RTIPV4 */
stage_1_frm->burstrate = device[conn->ifindex].burstrate;
stage_1_frm->cfg_len = htons(conn->stage1_size);
memcpy(rtskb_put(rtskb, conn->stage1_size), conn->stage1_data,
conn->stage1_size);
return rtcfg_send_frame(rtskb, rtdev, conn->mac_addr);
}
static int rtnet_mgr_read_proc (char *page, char **start,
off_t off, int count, int *eof, void *data)
{
PROC_PRINT_VARS;
int i;
struct rtnet_device *rtdev;
unsigned int rtskb_len;
PROC_PRINT("\nRTnet\n\n");
PROC_PRINT("Devices:\n");
for (i = 1; i <= MAX_RT_DEVICES; i++) {
rtdev = rtdev_get_by_index(i);
if (rtdev != NULL) {
PROC_PRINT(" %s: %s rxq=%d\n",
rtdev->name,
(rtdev->flags & IFF_UP) ? "UP" : "DOWN",
rtdev->rxqueue_len);
rtdev_dereference(rtdev);
}
}
rtskb_len = ALIGN_RTSKB_STRUCT_LEN + SKB_DATA_ALIGN(RTSKB_SIZE);
PROC_PRINT("\nrtskb pools current/max: %d / %d\n"
"rtskbs current/max: %d / %d\n"
"rtskb memory need current/max: %d / %d\n\n",
rtskb_pools, rtskb_pools_max,
rtskb_amount, rtskb_amount_max,
rtskb_amount * rtskb_len, rtskb_amount_max * rtskb_len);
PROC_PRINT_DONE;
}
int rtcfg_send_simple_frame(int ifindex, int frame_id, u8 *dest_addr)
{
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_simple *simple_frm;
rtdev = rtdev_get_by_index(ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len + sizeof(struct rtcfg_frm_simple);
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
simple_frm = (struct rtcfg_frm_simple *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_simple));
simple_frm->head.id = frame_id;
simple_frm->head.version = 0;
return rtcfg_send_frame(rtskb, rtdev,
(dest_addr) ? dest_addr : rtdev->broadcast);
}
static int rtnet_read_proc_devices(char *buf, char **start, off_t offset,
int count, int *eof, void *data)
{
int i;
int res;
struct rtnet_device *rtdev;
RTNET_PROC_PRINT_VARS(80);
if (!RTNET_PROC_PRINT("Name\t\tFlags\n"))
goto done;
for (i = 1; i <= MAX_RT_DEVICES; i++) {
rtdev = rtdev_get_by_index(i);
if (rtdev != NULL) {
res = RTNET_PROC_PRINT("%-15s %s%s%s%s\n",
rtdev->name,
(rtdev->flags & IFF_UP) ? "UP" : "DOWN",
(rtdev->flags & IFF_BROADCAST) ? " BROADCAST" : "",
(rtdev->flags & IFF_LOOPBACK) ? " LOOPBACK" : "",
(rtdev->flags & IFF_PROMISC) ? " PROMISC" : "");
rtdev_dereference(rtdev);
if (!res)
break;
}
}
done:
RTNET_PROC_PRINT_DONE;
}
int rtcfg_send_dead_station(struct rtcfg_connection *conn)
{
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_dead_station *dead_station_frm;
rtdev = rtdev_get_by_index(conn->ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len +
sizeof(struct rtcfg_frm_dead_station) +
#ifdef CONFIG_RTNET_RTIPV4
(((conn->addr_type & RTCFG_ADDR_MASK) == RTCFG_ADDR_IP) ?
RTCFG_ADDRSIZE_IP : 0);
#else /* !CONFIG_RTNET_RTIPV4 */
0;
#endif /* CONFIG_RTNET_RTIPV4 */
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
dead_station_frm = (struct rtcfg_frm_dead_station *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_dead_station));
dead_station_frm->head.id = RTCFG_ID_DEAD_STATION;
dead_station_frm->head.version = 0;
dead_station_frm->addr_type = conn->addr_type & RTCFG_ADDR_MASK;
#ifdef CONFIG_RTNET_RTIPV4
if (dead_station_frm->addr_type == RTCFG_ADDR_IP) {
rtskb_put(rtskb, RTCFG_ADDRSIZE_IP);
memcpy(dead_station_frm->logical_addr, &(conn->addr.ip_addr), 4);
dead_station_frm = (struct rtcfg_frm_dead_station *)
(((u8 *)dead_station_frm) + RTCFG_ADDRSIZE_IP);
}
#endif /* CONFIG_RTNET_RTIPV4 */
/* Ethernet-specific! */
memcpy(dead_station_frm->physical_addr, conn->mac_addr, ETH_ALEN);
memset(&dead_station_frm->physical_addr[ETH_ALEN], 0,
sizeof(dead_station_frm->physical_addr) - ETH_ALEN);
return rtcfg_send_frame(rtskb, rtdev, rtdev->broadcast);
}
int rtcfg_send_announce_reply(int ifindex, u8 *dest_mac_addr)
{
struct rtcfg_device *rtcfg_dev = &device[ifindex];
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_announce *announce_rpl;
rtdev = rtdev_get_by_index(ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len +
sizeof(struct rtcfg_frm_announce) +
#ifdef CONFIG_RTNET_RTIPV4
((rtcfg_dev->spec.clt.addr_type == RTCFG_ADDR_IP) ?
RTCFG_ADDRSIZE_IP : 0);
#else /* !CONFIG_RTNET_RTIPV4 */
0;
#endif /* CONFIG_RTNET_RTIPV4 */
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
announce_rpl = (struct rtcfg_frm_announce *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_announce));
announce_rpl->head.id = RTCFG_ID_ANNOUNCE_REPLY;
announce_rpl->head.version = 0;
announce_rpl->addr_type = rtcfg_dev->spec.clt.addr_type;
#ifdef CONFIG_RTNET_RTIPV4
if (announce_rpl->addr_type == RTCFG_ADDR_IP) {
rtskb_put(rtskb, RTCFG_ADDRSIZE_IP);
memcpy(announce_rpl->addr, &(rtdev->local_ip), 4);
announce_rpl = (struct rtcfg_frm_announce *)
(((u8 *)announce_rpl) + RTCFG_ADDRSIZE_IP);
}
#endif /* CONFIG_RTNET_RTIPV4 */
announce_rpl->flags = rtcfg_dev->flags & RTCFG_FLAG_READY;
announce_rpl->burstrate = 0; /* padding field */
return rtcfg_send_frame(rtskb, rtdev, dest_mac_addr);
}
int rtcfg_send_announce_new(int ifindex)
{
struct rtcfg_device *rtcfg_dev = &device[ifindex];
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_announce *announce_new;
rtdev = rtdev_get_by_index(ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len + sizeof(struct rtcfg_frm_announce) +
#ifdef CONFIG_RTNET_RTIPV4
(((rtcfg_dev->spec.clt.addr_type & RTCFG_ADDR_MASK) == RTCFG_ADDR_IP) ?
RTCFG_ADDRSIZE_IP : 0);
#else /* !CONFIG_RTNET_RTIPV4 */
0;
#endif /* CONFIG_RTNET_RTIPV4 */
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
announce_new = (struct rtcfg_frm_announce *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_announce));
announce_new->head.id = RTCFG_ID_ANNOUNCE_NEW;
announce_new->head.version = 0;
announce_new->addr_type = rtcfg_dev->spec.clt.addr_type;
#ifdef CONFIG_RTNET_RTIPV4
if (announce_new->addr_type == RTCFG_ADDR_IP) {
rtskb_put(rtskb, RTCFG_ADDRSIZE_IP);
memcpy(announce_new->addr, &(rtdev->local_ip), 4);
announce_new = (struct rtcfg_frm_announce *)
(((u8 *)announce_new) + RTCFG_ADDRSIZE_IP);
}
#endif /* CONFIG_RTNET_RTIPV4 */
announce_new->flags = rtcfg_dev->flags;
announce_new->burstrate = rtcfg_dev->burstrate;
return rtcfg_send_frame(rtskb, rtdev, rtdev->broadcast);
}
int rtcfg_send_stage_2(struct rtcfg_connection *conn, int send_data)
{
struct rtnet_device *rtdev;
struct rtcfg_device *rtcfg_dev = &device[conn->ifindex];
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_stage_2_cfg *stage_2_frm;
size_t total_size;
size_t frag_size;
rtdev = rtdev_get_by_index(conn->ifindex);
if (rtdev == NULL)
return -ENODEV;
if (send_data) {
total_size = conn->stage2_file->size;
frag_size = MIN(rtdev->mtu - sizeof(struct rtcfg_frm_stage_2_cfg),
total_size);
} else {
total_size = 0;
frag_size = 0;
}
rtskb_size = rtdev->hard_header_len +
sizeof(struct rtcfg_frm_stage_2_cfg) + frag_size;
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
stage_2_frm = (struct rtcfg_frm_stage_2_cfg *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_stage_2_cfg));
stage_2_frm->head.id = RTCFG_ID_STAGE_2_CFG;
stage_2_frm->head.version = 0;
stage_2_frm->flags = rtcfg_dev->flags;
stage_2_frm->stations = htonl(rtcfg_dev->other_stations);
stage_2_frm->heartbeat_period = htons(0);
stage_2_frm->cfg_len = htonl(total_size);
if (send_data)
memcpy(rtskb_put(rtskb, frag_size), conn->stage2_file->buffer,
frag_size);
conn->cfg_offs = frag_size;
return rtcfg_send_frame(rtskb, rtdev, conn->mac_addr);
}
int rtcfg_send_announce_new(int ifindex)
{
struct rtcfg_device *rtcfg_dev = &device[ifindex];
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_announce *announce_new;
rtdev = rtdev_get_by_index(ifindex);
if (rtdev == NULL)
return -ENODEV;
rtskb_size = rtdev->hard_header_len + sizeof(struct rtcfg_frm_announce) +
((rtcfg_dev->addr_type == RTCFG_ADDR_IP) ? RTCFG_ADDRSIZE_IP : 0);
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
announce_new = (struct rtcfg_frm_announce *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_announce));
announce_new->head.id = RTCFG_ID_ANNOUNCE_NEW;
announce_new->head.version = 0;
announce_new->addr_type = rtcfg_dev->addr_type;
if (announce_new->addr_type == RTCFG_ADDR_IP) {
rtskb_put(rtskb, RTCFG_ADDRSIZE_IP);
*(u32*)announce_new->addr = rtdev->local_ip;
announce_new = (struct rtcfg_frm_announce *)
(((u8 *)announce_new) + RTCFG_ADDRSIZE_IP);
}
announce_new->flags = rtcfg_dev->flags;
announce_new->burstrate = rtcfg_dev->burstrate;
return rtcfg_send_frame(rtskb, rtdev, rtdev->broadcast);
}
static void rtcfg_conn_check_heartbeat(struct rtcfg_connection *conn)
{
u64 timeout;
struct rtcfg_device *rtcfg_dev;
timeout = device[conn->ifindex].spec.srv.heartbeat_timeout;
if (!timeout)
return;
if (rtdm_clock_read() >= conn->last_frame + timeout) {
rtcfg_dev = &device[conn->ifindex];
rtcfg_dev->stations_found--;
rtcfg_dev->stations_ready--;
rtcfg_dev->spec.srv.clients_configured--;
rtcfg_send_dead_station(conn);
rtcfg_next_conn_state(conn, RTCFG_CONN_DEAD);
conn->cfg_offs = 0;
conn->flags = 0;
#ifdef CONFIG_RTNET_RTIPV4
if ((conn->addr_type & RTCFG_ADDR_MASK) == RTCFG_ADDR_IP) {
struct rtnet_device *rtdev = rtdev_get_by_index(conn->ifindex);
rt_ip_route_del_host(conn->addr.ip_addr, rtdev);
if (rtdev == NULL)
return;
if (!(conn->addr_type & FLAG_ASSIGN_ADDR_BY_MAC))
/* MAC address yet unknown -> use broadcast address */
memcpy(conn->mac_addr, rtdev->broadcast, MAX_ADDR_LEN);
rtdev_dereference(rtdev);
}
#endif /* CONFIG_RTNET_RTIPV4 */
}
}
int rtcfg_send_stage_2_frag(struct rtcfg_connection *conn)
{
struct rtnet_device *rtdev;
struct rtskb *rtskb;
unsigned int rtskb_size;
struct rtcfg_frm_stage_2_cfg_frag *stage_2_frm;
size_t frag_size;
rtdev = rtdev_get_by_index(conn->ifindex);
if (rtdev == NULL)
return -ENODEV;
frag_size = MIN(rtdev->get_mtu(rtdev, RTCFG_SKB_PRIO) -
sizeof(struct rtcfg_frm_stage_2_cfg_frag),
conn->stage2_file->size - conn->cfg_offs);
rtskb_size = rtdev->hard_header_len +
sizeof(struct rtcfg_frm_stage_2_cfg_frag) + frag_size;
rtskb = alloc_rtskb(rtskb_size, &rtcfg_pool);
if (rtskb == NULL) {
rtdev_dereference(rtdev);
return -ENOBUFS;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
stage_2_frm = (struct rtcfg_frm_stage_2_cfg_frag *)
rtskb_put(rtskb, sizeof(struct rtcfg_frm_stage_2_cfg_frag));
stage_2_frm->head.id = RTCFG_ID_STAGE_2_CFG_FRAG;
stage_2_frm->head.version = 0;
stage_2_frm->frag_offs = htonl(conn->cfg_offs);
memcpy(rtskb_put(rtskb, frag_size),
conn->stage2_file->buffer + conn->cfg_offs, frag_size);
conn->cfg_offs += frag_size;
return rtcfg_send_frame(rtskb, rtdev, conn->mac_addr);
}
/***
* rt_packet_getsockname
*/
int rt_packet_getsockname(struct rtsocket *sock, struct sockaddr *addr,
socklen_t *addrlen)
{
struct sockaddr_ll *sll = (struct sockaddr_ll*)addr;
struct rtnet_device *rtdev;
rtdm_lockctx_t context;
if (*addrlen < sizeof(struct sockaddr_ll))
return -EINVAL;
rtdm_lock_get_irqsave(&sock->param_lock, context);
sll->sll_family = AF_PACKET;
sll->sll_ifindex = sock->prot.packet.ifindex;
sll->sll_protocol = sock->protocol;
rtdm_lock_put_irqrestore(&sock->param_lock, context);
rtdev = rtdev_get_by_index(sll->sll_ifindex);
if (rtdev != NULL) {
sll->sll_hatype = rtdev->type;
sll->sll_halen = rtdev->addr_len;
memcpy(sll->sll_addr, rtdev->dev_addr, rtdev->addr_len);
rtdev_dereference(rtdev);
} else {
sll->sll_hatype = 0;
sll->sll_halen = 0;
}
*addrlen = sizeof(struct sockaddr_ll);
return 0;
}
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 *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 __init rtcap_init(void)
{
struct rtnet_device *rtdev;
struct net_device *dev;
int ret;
int devices = 0;
int i;
unsigned long flags;
printk("RTcap: real-time capturing interface\n");
#if defined(CONFIG_RTAI_24) || defined(CONFIG_RTAI_30) || defined(CONFIG_RTAI_31)
if (start_timer) {
rt_set_oneshot_mode();
start_rt_timer(0);
}
#endif
rtskb_queue_init(&cap_queue);
ret = rtos_nrt_signal_init(&cap_signal, rtcap_signal_handler);
if (ret < 0)
goto error1;
for (i = 0; i < MAX_RT_DEVICES; i++) {
tap_device[i].present = 0;
rtdev = rtdev_get_by_index(i);
if (rtdev != NULL) {
down(&rtdev->nrt_sem);
if (test_bit(PRIV_FLAG_UP, &rtdev->priv_flags)) {
up(&rtdev->nrt_sem);
printk("RTcap: %s busy, skipping device!\n", rtdev->name);
rtdev_dereference(rtdev);
continue;
}
if (rtdev->mac_priv != NULL) {
up(&rtdev->nrt_sem);
printk("RTcap: RTmac discipline already active on device %s. "
"Load RTcap before RTmac!\n", rtdev->name);
rtdev_dereference(rtdev);
continue;
}
memset(&tap_device[i].tap_dev_stats, 0,
sizeof(struct net_device_stats));
dev = &tap_device[i].tap_dev;
memset(dev, 0, sizeof(struct net_device));
dev->init = tap_dev_init;
dev->priv = rtdev;
strncpy(dev->name, rtdev->name, IFNAMSIZ-1);
dev->name[IFNAMSIZ-1] = 0;
ret = register_netdev(dev);
if (ret < 0) {
up(&rtdev->nrt_sem);
rtdev_dereference(rtdev);
printk("RTcap: unable to register %s!\n", dev->name);
goto error2;
}
tap_device[i].present = TAP_DEV;
tap_device[i].orig_xmit = rtdev->hard_start_xmit;
if ((rtdev->flags & IFF_LOOPBACK) == 0) {
dev = &tap_device[i].rtmac_tap_dev;
memset(dev, 0, sizeof(struct net_device));
dev->init = tap_dev_init;
dev->priv = rtdev;
strncpy(dev->name, rtdev->name, IFNAMSIZ-1);
dev->name[IFNAMSIZ-1] = 0;
strncat(dev->name, "-mac", IFNAMSIZ-strlen(dev->name));
ret = register_netdev(dev);
if (ret < 0) {
up(&rtdev->nrt_sem);
rtdev_dereference(rtdev);
printk("RTcap: unable to register %s!\n", dev->name);
goto error2;
}
tap_device[i].present |= RTMAC_TAP_DEV;
rtdev->hard_start_xmit = rtcap_xmit_hook;
} else
rtdev->hard_start_xmit = rtcap_loopback_xmit_hook;
/* If the device requires no xmit_lock, start_xmit points equals
* hard_start_xmit => we have to update this as well
*/
if (rtdev->features & RTNETIF_F_NON_EXCLUSIVE_XMIT)
rtdev->start_xmit = rtdev->hard_start_xmit;
tap_device[i].present |= XMIT_HOOK;
__MOD_INC_USE_COUNT(rtdev->owner);
up(&rtdev->nrt_sem);
devices++;
}
}
if (devices == 0) {
printk("RTcap: no real-time devices found!\n");
ret = -ENODEV;
goto error2;
}
if (rtskb_pool_init(&cap_pool, rtcap_rtskbs * devices) <
rtcap_rtskbs * devices) {
rtskb_pool_release(&cap_pool);
ret = -ENOMEM;
goto error2;
}
/* register capturing handlers with RTnet core */
rtos_spin_lock_irqsave(&rtcap_lock, flags);
rtcap_handler = rtcap_rx_hook;
rtos_spin_unlock_irqrestore(&rtcap_lock, flags);
return 0;
error2:
cleanup_tap_devices();
rtos_nrt_signal_delete(&cap_signal);
error1:
#if defined(CONFIG_RTAI_24) || defined(CONFIG_RTAI_30) || defined(CONFIG_RTAI_31)
if (start_timer)
stop_rt_timer();
#endif
return ret;
}
/***
* 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;
}
/***
* rt_packet_sendmsg
*/
int rt_packet_sendmsg(struct rtsocket *sock, const struct msghdr *msg,
size_t len, int flags)
{
struct sockaddr_ll *sll = (struct sockaddr_ll*)msg->msg_name;
struct rtnet_device *rtdev;
struct rtskb *rtskb;
int ret = 0;
if (flags & MSG_OOB) /* Mirror BSD error message compatibility */
return -EOPNOTSUPP;
/* a lot of sanity checks */
if ((flags & ~MSG_DONTWAIT) ||
(sll == NULL) || (msg->msg_namelen != sizeof(struct sockaddr_ll)) ||
((sll->sll_family != AF_PACKET) && (sll->sll_family != AF_UNSPEC)) ||
(sll->sll_ifindex <= 0))
return -EINVAL;
if ((rtdev = rtdev_get_by_index(sll->sll_ifindex)) == NULL)
return -ENODEV;
rtskb = alloc_rtskb(rtdev->hard_header_len + len, &sock->skb_pool);
if (rtskb == NULL) {
ret = -ENOBUFS;
goto out;
}
if ((len < 0) || (len > rtdev->mtu)) {
ret = -EMSGSIZE;
goto err;
}
if (sll->sll_halen != rtdev->addr_len) {
ret = -EINVAL;
goto err;
}
rtskb_reserve(rtskb, rtdev->hard_header_len);
rt_memcpy_fromkerneliovec(rtskb_put(rtskb, len), msg->msg_iov, len);
rtskb->rtdev = rtdev;
rtskb->priority = sock->priority;
if (rtdev->hard_header) {
ret = rtdev->hard_header(rtskb, rtdev, ntohs(sll->sll_protocol),
sll->sll_addr, rtdev->dev_addr, rtskb->len);
if (ret < 0)
goto err;
}
if ((rtdev->flags & IFF_UP) != 0) {
if (rtdev_xmit(rtskb) == 0)
ret = len;
else
ret = -EAGAIN;
} else {
ret = -ENETDOWN;
goto err;
}
out:
rtdev_dereference(rtdev);
return ret;
err:
kfree_rtskb(rtskb);
rtdev_dereference(rtdev);
return ret;
}
