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Diffstat (limited to 'net/nfc')
-rw-r--r--net/nfc/core.c119
-rw-r--r--net/nfc/hci/core.c13
-rw-r--r--net/nfc/hci/shdlc.c6
-rw-r--r--net/nfc/llcp/commands.c54
-rw-r--r--net/nfc/llcp/llcp.c421
-rw-r--r--net/nfc/llcp/llcp.h26
-rw-r--r--net/nfc/llcp/sock.c47
-rw-r--r--net/nfc/nci/core.c15
-rw-r--r--net/nfc/netlink.c81
-rw-r--r--net/nfc/nfc.h12
10 files changed, 530 insertions, 264 deletions
diff --git a/net/nfc/core.c b/net/nfc/core.c
index 9f6ce011d35d..4177bb5104b9 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -121,14 +121,14 @@ error:
* The device remains polling for targets until a target is found or
* the nfc_stop_poll function is called.
*/
-int nfc_start_poll(struct nfc_dev *dev, u32 protocols)
+int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols)
{
int rc;
- pr_debug("dev_name=%s protocols=0x%x\n",
- dev_name(&dev->dev), protocols);
+ pr_debug("dev_name %s initiator protocols 0x%x target protocols 0x%x\n",
+ dev_name(&dev->dev), im_protocols, tm_protocols);
- if (!protocols)
+ if (!im_protocols && !tm_protocols)
return -EINVAL;
device_lock(&dev->dev);
@@ -143,9 +143,11 @@ int nfc_start_poll(struct nfc_dev *dev, u32 protocols)
goto error;
}
- rc = dev->ops->start_poll(dev, protocols);
- if (!rc)
+ rc = dev->ops->start_poll(dev, im_protocols, tm_protocols);
+ if (!rc) {
dev->polling = true;
+ dev->rf_mode = NFC_RF_NONE;
+ }
error:
device_unlock(&dev->dev);
@@ -235,8 +237,10 @@ int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode)
}
rc = dev->ops->dep_link_up(dev, target, comm_mode, gb, gb_len);
- if (!rc)
+ if (!rc) {
dev->active_target = target;
+ dev->rf_mode = NFC_RF_INITIATOR;
+ }
error:
device_unlock(&dev->dev);
@@ -264,11 +268,6 @@ int nfc_dep_link_down(struct nfc_dev *dev)
goto error;
}
- if (dev->dep_rf_mode == NFC_RF_TARGET) {
- rc = -EOPNOTSUPP;
- goto error;
- }
-
rc = dev->ops->dep_link_down(dev);
if (!rc) {
dev->dep_link_up = false;
@@ -286,7 +285,6 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
u8 comm_mode, u8 rf_mode)
{
dev->dep_link_up = true;
- dev->dep_rf_mode = rf_mode;
nfc_llcp_mac_is_up(dev, target_idx, comm_mode, rf_mode);
@@ -330,6 +328,7 @@ int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol)
rc = dev->ops->activate_target(dev, target, protocol);
if (!rc) {
dev->active_target = target;
+ dev->rf_mode = NFC_RF_INITIATOR;
if (dev->ops->check_presence)
mod_timer(&dev->check_pres_timer, jiffies +
@@ -409,27 +408,30 @@ int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb,
goto error;
}
- if (dev->active_target == NULL) {
- rc = -ENOTCONN;
- kfree_skb(skb);
- goto error;
- }
+ if (dev->rf_mode == NFC_RF_INITIATOR && dev->active_target != NULL) {
+ if (dev->active_target->idx != target_idx) {
+ rc = -EADDRNOTAVAIL;
+ kfree_skb(skb);
+ goto error;
+ }
- if (dev->active_target->idx != target_idx) {
- rc = -EADDRNOTAVAIL;
+ if (dev->ops->check_presence)
+ del_timer_sync(&dev->check_pres_timer);
+
+ rc = dev->ops->im_transceive(dev, dev->active_target, skb, cb,
+ cb_context);
+
+ if (!rc && dev->ops->check_presence)
+ mod_timer(&dev->check_pres_timer, jiffies +
+ msecs_to_jiffies(NFC_CHECK_PRES_FREQ_MS));
+ } else if (dev->rf_mode == NFC_RF_TARGET && dev->ops->tm_send != NULL) {
+ rc = dev->ops->tm_send(dev, skb);
+ } else {
+ rc = -ENOTCONN;
kfree_skb(skb);
goto error;
}
- if (dev->ops->check_presence)
- del_timer_sync(&dev->check_pres_timer);
-
- rc = dev->ops->data_exchange(dev, dev->active_target, skb, cb,
- cb_context);
-
- if (!rc && dev->ops->check_presence)
- mod_timer(&dev->check_pres_timer, jiffies +
- msecs_to_jiffies(NFC_CHECK_PRES_FREQ_MS));
error:
device_unlock(&dev->dev);
@@ -447,6 +449,63 @@ int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len)
}
EXPORT_SYMBOL(nfc_set_remote_general_bytes);
+u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len)
+{
+ pr_debug("dev_name=%s\n", dev_name(&dev->dev));
+
+ return nfc_llcp_general_bytes(dev, gb_len);
+}
+EXPORT_SYMBOL(nfc_get_local_general_bytes);
+
+int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb)
+{
+ /* Only LLCP target mode for now */
+ if (dev->dep_link_up == false) {
+ kfree_skb(skb);
+ return -ENOLINK;
+ }
+
+ return nfc_llcp_data_received(dev, skb);
+}
+EXPORT_SYMBOL(nfc_tm_data_received);
+
+int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode,
+ u8 *gb, size_t gb_len)
+{
+ int rc;
+
+ device_lock(&dev->dev);
+
+ dev->polling = false;
+
+ if (gb != NULL) {
+ rc = nfc_set_remote_general_bytes(dev, gb, gb_len);
+ if (rc < 0)
+ goto out;
+ }
+
+ dev->rf_mode = NFC_RF_TARGET;
+
+ if (protocol == NFC_PROTO_NFC_DEP_MASK)
+ nfc_dep_link_is_up(dev, 0, comm_mode, NFC_RF_TARGET);
+
+ rc = nfc_genl_tm_activated(dev, protocol);
+
+out:
+ device_unlock(&dev->dev);
+
+ return rc;
+}
+EXPORT_SYMBOL(nfc_tm_activated);
+
+int nfc_tm_deactivated(struct nfc_dev *dev)
+{
+ dev->dep_link_up = false;
+
+ return nfc_genl_tm_deactivated(dev);
+}
+EXPORT_SYMBOL(nfc_tm_deactivated);
+
/**
* nfc_alloc_send_skb - allocate a skb for data exchange responses
*
@@ -678,7 +737,7 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops,
struct nfc_dev *dev;
if (!ops->start_poll || !ops->stop_poll || !ops->activate_target ||
- !ops->deactivate_target || !ops->data_exchange)
+ !ops->deactivate_target || !ops->im_transceive)
return NULL;
if (!supported_protocols)
diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c
index e1a640d2b588..a8b0b71e8f86 100644
--- a/net/nfc/hci/core.c
+++ b/net/nfc/hci/core.c
@@ -481,12 +481,13 @@ static int hci_dev_down(struct nfc_dev *nfc_dev)
return 0;
}
-static int hci_start_poll(struct nfc_dev *nfc_dev, u32 protocols)
+static int hci_start_poll(struct nfc_dev *nfc_dev,
+ u32 im_protocols, u32 tm_protocols)
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
if (hdev->ops->start_poll)
- return hdev->ops->start_poll(hdev, protocols);
+ return hdev->ops->start_poll(hdev, im_protocols, tm_protocols);
else
return nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE,
NFC_HCI_EVT_READER_REQUESTED, NULL, 0);
@@ -511,9 +512,9 @@ static void hci_deactivate_target(struct nfc_dev *nfc_dev,
{
}
-static int hci_data_exchange(struct nfc_dev *nfc_dev, struct nfc_target *target,
- struct sk_buff *skb, data_exchange_cb_t cb,
- void *cb_context)
+static int hci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
+ struct sk_buff *skb, data_exchange_cb_t cb,
+ void *cb_context)
{
struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev);
int r;
@@ -579,7 +580,7 @@ static struct nfc_ops hci_nfc_ops = {
.stop_poll = hci_stop_poll,
.activate_target = hci_activate_target,
.deactivate_target = hci_deactivate_target,
- .data_exchange = hci_data_exchange,
+ .im_transceive = hci_transceive,
.check_presence = hci_check_presence,
};
diff --git a/net/nfc/hci/shdlc.c b/net/nfc/hci/shdlc.c
index 5665dc6d893a..6b836e6242b7 100644
--- a/net/nfc/hci/shdlc.c
+++ b/net/nfc/hci/shdlc.c
@@ -765,14 +765,16 @@ static int nfc_shdlc_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb)
return 0;
}
-static int nfc_shdlc_start_poll(struct nfc_hci_dev *hdev, u32 protocols)
+static int nfc_shdlc_start_poll(struct nfc_hci_dev *hdev,
+ u32 im_protocols, u32 tm_protocols)
{
struct nfc_shdlc *shdlc = nfc_hci_get_clientdata(hdev);
pr_debug("\n");
if (shdlc->ops->start_poll)
- return shdlc->ops->start_poll(shdlc, protocols);
+ return shdlc->ops->start_poll(shdlc,
+ im_protocols, tm_protocols);
return 0;
}
diff --git a/net/nfc/llcp/commands.c b/net/nfc/llcp/commands.c
index bf8ae4f0b90c..b982b5b890d7 100644
--- a/net/nfc/llcp/commands.c
+++ b/net/nfc/llcp/commands.c
@@ -51,7 +51,7 @@ static u8 llcp_tlv8(u8 *tlv, u8 type)
return tlv[2];
}
-static u8 llcp_tlv16(u8 *tlv, u8 type)
+static u16 llcp_tlv16(u8 *tlv, u8 type)
{
if (tlv[0] != type || tlv[1] != llcp_tlv_length[tlv[0]])
return 0;
@@ -67,7 +67,7 @@ static u8 llcp_tlv_version(u8 *tlv)
static u16 llcp_tlv_miux(u8 *tlv)
{
- return llcp_tlv16(tlv, LLCP_TLV_MIUX) & 0x7f;
+ return llcp_tlv16(tlv, LLCP_TLV_MIUX) & 0x7ff;
}
static u16 llcp_tlv_wks(u8 *tlv)
@@ -117,8 +117,8 @@ u8 *nfc_llcp_build_tlv(u8 type, u8 *value, u8 value_length, u8 *tlv_length)
return tlv;
}
-int nfc_llcp_parse_tlv(struct nfc_llcp_local *local,
- u8 *tlv_array, u16 tlv_array_len)
+int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local,
+ u8 *tlv_array, u16 tlv_array_len)
{
u8 *tlv = tlv_array, type, length, offset = 0;
@@ -149,8 +149,45 @@ int nfc_llcp_parse_tlv(struct nfc_llcp_local *local,
case LLCP_TLV_OPT:
local->remote_opt = llcp_tlv_opt(tlv);
break;
+ default:
+ pr_err("Invalid gt tlv value 0x%x\n", type);
+ break;
+ }
+
+ offset += length + 2;
+ tlv += length + 2;
+ }
+
+ pr_debug("version 0x%x miu %d lto %d opt 0x%x wks 0x%x\n",
+ local->remote_version, local->remote_miu,
+ local->remote_lto, local->remote_opt,
+ local->remote_wks);
+
+ return 0;
+}
+
+int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
+ u8 *tlv_array, u16 tlv_array_len)
+{
+ u8 *tlv = tlv_array, type, length, offset = 0;
+
+ pr_debug("TLV array length %d\n", tlv_array_len);
+
+ if (sock == NULL)
+ return -ENOTCONN;
+
+ while (offset < tlv_array_len) {
+ type = tlv[0];
+ length = tlv[1];
+
+ pr_debug("type 0x%x length %d\n", type, length);
+
+ switch (type) {
+ case LLCP_TLV_MIUX:
+ sock->miu = llcp_tlv_miux(tlv) + 128;
+ break;
case LLCP_TLV_RW:
- local->remote_rw = llcp_tlv_rw(tlv);
+ sock->rw = llcp_tlv_rw(tlv);
break;
case LLCP_TLV_SN:
break;
@@ -163,10 +200,7 @@ int nfc_llcp_parse_tlv(struct nfc_llcp_local *local,
tlv += length + 2;
}
- pr_debug("version 0x%x miu %d lto %d opt 0x%x wks 0x%x rw %d\n",
- local->remote_version, local->remote_miu,
- local->remote_lto, local->remote_opt,
- local->remote_wks, local->remote_rw);
+ pr_debug("sock %p rw %d miu %d\n", sock, sock->rw, sock->miu);
return 0;
}
@@ -474,7 +508,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock,
while (remaining_len > 0) {
- frag_len = min_t(size_t, local->remote_miu, remaining_len);
+ frag_len = min_t(size_t, sock->miu, remaining_len);
pr_debug("Fragment %zd bytes remaining %zd",
frag_len, remaining_len);
diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c
index 42994fac26d6..5d503eeb15a1 100644
--- a/net/nfc/llcp/llcp.c
+++ b/net/nfc/llcp/llcp.c
@@ -31,47 +31,41 @@ static u8 llcp_magic[3] = {0x46, 0x66, 0x6d};
static struct list_head llcp_devices;
-static void nfc_llcp_socket_release(struct nfc_llcp_local *local)
+void nfc_llcp_sock_link(struct llcp_sock_list *l, struct sock *sk)
{
- struct nfc_llcp_sock *parent, *s, *n;
- struct sock *sk, *parent_sk;
- int i;
-
- mutex_lock(&local->socket_lock);
-
- for (i = 0; i < LLCP_MAX_SAP; i++) {
- parent = local->sockets[i];
- if (parent == NULL)
- continue;
-
- /* Release all child sockets */
- list_for_each_entry_safe(s, n, &parent->list, list) {
- list_del_init(&s->list);
- sk = &s->sk;
-
- lock_sock(sk);
-
- if (sk->sk_state == LLCP_CONNECTED)
- nfc_put_device(s->dev);
+ write_lock(&l->lock);
+ sk_add_node(sk, &l->head);
+ write_unlock(&l->lock);
+}
- sk->sk_state = LLCP_CLOSED;
+void nfc_llcp_sock_unlink(struct llcp_sock_list *l, struct sock *sk)
+{
+ write_lock(&l->lock);
+ sk_del_node_init(sk);
+ write_unlock(&l->lock);
+}
- release_sock(sk);
+static void nfc_llcp_socket_release(struct nfc_llcp_local *local)
+{
+ struct sock *sk;
+ struct hlist_node *node, *tmp;
+ struct nfc_llcp_sock *llcp_sock;
- sock_orphan(sk);
+ write_lock(&local->sockets.lock);
- s->local = NULL;
- }
+ sk_for_each_safe(sk, node, tmp, &local->sockets.head) {
+ llcp_sock = nfc_llcp_sock(sk);
- parent_sk = &parent->sk;
+ lock_sock(sk);
- lock_sock(parent_sk);
+ if (sk->sk_state == LLCP_CONNECTED)
+ nfc_put_device(llcp_sock->dev);
- if (parent_sk->sk_state == LLCP_LISTEN) {
+ if (sk->sk_state == LLCP_LISTEN) {
struct nfc_llcp_sock *lsk, *n;
struct sock *accept_sk;
- list_for_each_entry_safe(lsk, n, &parent->accept_queue,
+ list_for_each_entry_safe(lsk, n, &llcp_sock->accept_queue,
accept_queue) {
accept_sk = &lsk->sk;
lock_sock(accept_sk);
@@ -83,24 +77,53 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local)
release_sock(accept_sk);
sock_orphan(accept_sk);
-
- lsk->local = NULL;
}
}
- if (parent_sk->sk_state == LLCP_CONNECTED)
- nfc_put_device(parent->dev);
-
- parent_sk->sk_state = LLCP_CLOSED;
+ sk->sk_state = LLCP_CLOSED;
- release_sock(parent_sk);
+ release_sock(sk);
- sock_orphan(parent_sk);
+ sock_orphan(sk);
- parent->local = NULL;
+ sk_del_node_init(sk);
}
- mutex_unlock(&local->socket_lock);
+ write_unlock(&local->sockets.lock);
+}
+
+struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local)
+{
+ kref_get(&local->ref);
+
+ return local;
+}
+
+static void local_release(struct kref *ref)
+{
+ struct nfc_llcp_local *local;
+
+ local = container_of(ref, struct nfc_llcp_local, ref);
+
+ list_del(&local->list);
+ nfc_llcp_socket_release(local);
+ del_timer_sync(&local->link_timer);
+ skb_queue_purge(&local->tx_queue);
+ destroy_workqueue(local->tx_wq);
+ destroy_workqueue(local->rx_wq);
+ destroy_workqueue(local->timeout_wq);
+ kfree_skb(local->rx_pending);
+ kfree(local);
+}
+
+int nfc_llcp_local_put(struct nfc_llcp_local *local)
+{
+ WARN_ON(local == NULL);
+
+ if (local == NULL)
+ return 0;
+
+ return kref_put(&local->ref, local_release);
}
static void nfc_llcp_clear_sdp(struct nfc_llcp_local *local)
@@ -384,31 +407,9 @@ int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len)
return -EINVAL;
}
- return nfc_llcp_parse_tlv(local,
- &local->remote_gb[3],
- local->remote_gb_len - 3);
-}
-
-static void nfc_llcp_tx_work(struct work_struct *work)
-{
- struct nfc_llcp_local *local = container_of(work, struct nfc_llcp_local,
- tx_work);
- struct sk_buff *skb;
-
- skb = skb_dequeue(&local->tx_queue);
- if (skb != NULL) {
- pr_debug("Sending pending skb\n");
- print_hex_dump(KERN_DEBUG, "LLCP Tx: ", DUMP_PREFIX_OFFSET,
- 16, 1, skb->data, skb->len, true);
-
- nfc_data_exchange(local->dev, local->target_idx,
- skb, nfc_llcp_recv, local);
- } else {
- nfc_llcp_send_symm(local->dev);
- }
-
- mod_timer(&local->link_timer,
- jiffies + msecs_to_jiffies(local->remote_lto));
+ return nfc_llcp_parse_gb_tlv(local,
+ &local->remote_gb[3],
+ local->remote_gb_len - 3);
}
static u8 nfc_llcp_dsap(struct sk_buff *pdu)
@@ -443,46 +444,146 @@ static void nfc_llcp_set_nrns(struct nfc_llcp_sock *sock, struct sk_buff *pdu)
sock->recv_ack_n = (sock->recv_n - 1) % 16;
}
+static void nfc_llcp_tx_work(struct work_struct *work)
+{
+ struct nfc_llcp_local *local = container_of(work, struct nfc_llcp_local,
+ tx_work);
+ struct sk_buff *skb;
+ struct sock *sk;
+ struct nfc_llcp_sock *llcp_sock;
+
+ skb = skb_dequeue(&local->tx_queue);
+ if (skb != NULL) {
+ sk = skb->sk;
+ llcp_sock = nfc_llcp_sock(sk);
+ if (llcp_sock != NULL) {
+ int ret;
+
+ pr_debug("Sending pending skb\n");
+ print_hex_dump(KERN_DEBUG, "LLCP Tx: ",
+ DUMP_PREFIX_OFFSET, 16, 1,
+ skb->data, skb->len, true);
+
+ ret = nfc_data_exchange(local->dev, local->target_idx,
+ skb, nfc_llcp_recv, local);
+
+ if (!ret && nfc_llcp_ptype(skb) == LLCP_PDU_I) {
+ skb = skb_get(skb);
+ skb_queue_tail(&llcp_sock->tx_pending_queue,
+ skb);
+ }
+ } else {
+ nfc_llcp_send_symm(local->dev);
+ }
+ } else {
+ nfc_llcp_send_symm(local->dev);
+ }
+
+ mod_timer(&local->link_timer,
+ jiffies + msecs_to_jiffies(2 * local->remote_lto));
+}
+
+static struct nfc_llcp_sock *nfc_llcp_connecting_sock_get(struct nfc_llcp_local *local,
+ u8 ssap)
+{
+ struct sock *sk;
+ struct nfc_llcp_sock *llcp_sock;
+ struct hlist_node *node;
+
+ read_lock(&local->connecting_sockets.lock);
+
+ sk_for_each(sk, node, &local->connecting_sockets.head) {
+ llcp_sock = nfc_llcp_sock(sk);
+
+ if (llcp_sock->ssap == ssap) {
+ sock_hold(&llcp_sock->sk);
+ goto out;
+ }
+ }
+
+ llcp_sock = NULL;
+
+out:
+ read_unlock(&local->connecting_sockets.lock);
+
+ return llcp_sock;
+}
+
static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local,
u8 ssap, u8 dsap)
{
- struct nfc_llcp_sock *sock, *llcp_sock, *n;
+ struct sock *sk;
+ struct hlist_node *node;
+ struct nfc_llcp_sock *llcp_sock;
pr_debug("ssap dsap %d %d\n", ssap, dsap);
if (ssap == 0 && dsap == 0)
return NULL;
- mutex_lock(&local->socket_lock);
- sock = local->sockets[ssap];
- if (sock == NULL) {
- mutex_unlock(&local->socket_lock);
- return NULL;
- }
+ read_lock(&local->sockets.lock);
- pr_debug("root dsap %d (%d)\n", sock->dsap, dsap);
+ llcp_sock = NULL;
- if (sock->dsap == dsap) {
- sock_hold(&sock->sk);
- mutex_unlock(&local->socket_lock);
- return sock;
+ sk_for_each(sk, node, &local->sockets.head) {
+ llcp_sock = nfc_llcp_sock(sk);
+
+ if (llcp_sock->ssap == ssap &&
+ llcp_sock->dsap == dsap)
+ break;
}
- list_for_each_entry_safe(llcp_sock, n, &sock->list, list) {
- pr_debug("llcp_sock %p sk %p dsap %d\n", llcp_sock,
- &llcp_sock->sk, llcp_sock->dsap);
- if (llcp_sock->dsap == dsap) {
- sock_hold(&llcp_sock->sk);
- mutex_unlock(&local->socket_lock);
- return llcp_sock;
- }
+ read_unlock(&local->sockets.lock);
+
+ if (llcp_sock == NULL)
+ return NULL;
+
+ sock_hold(&llcp_sock->sk);
+
+ return llcp_sock;
+}
+
+static struct nfc_llcp_sock *nfc_llcp_sock_get_sn(struct nfc_llcp_local *local,
+ u8 *sn, size_t sn_len)
+{
+ struct sock *sk;
+ struct hlist_node *node;
+ struct nfc_llcp_sock *llcp_sock;
+
+ pr_debug("sn %zd\n", sn_len);
+
+ if (sn == NULL || sn_len == 0)
+ return NULL;
+
+ read_lock(&local->sockets.lock);
+
+ llcp_sock = NULL;
+
+ sk_for_each(sk, node, &local->sockets.head) {
+ llcp_sock = nfc_llcp_sock(sk);
+
+ if (llcp_sock->sk.sk_state != LLCP_LISTEN)
+ continue;
+
+ if (llcp_sock->service_name == NULL ||
+ llcp_sock->service_name_len == 0)
+ continue;
+
+ if (llcp_sock->service_name_len != sn_len)
+ continue;
+
+ if (memcmp(sn, llcp_sock->service_name, sn_len) == 0)
+ break;
}
- pr_err("Could not find socket for %d %d\n", ssap, dsap);
+ read_unlock(&local->sockets.lock);
- mutex_unlock(&local->socket_lock);
+ if (llcp_sock == NULL)
+ return NULL;
- return NULL;
+ sock_hold(&llcp_sock->sk);
+
+ return llcp_sock;
}
static void nfc_llcp_sock_put(struct nfc_llcp_sock *sock)
@@ -518,35 +619,19 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
{
struct sock *new_sk, *parent;
struct nfc_llcp_sock *sock, *new_sock;
- u8 dsap, ssap, bound_sap, reason;
+ u8 dsap, ssap, reason;
dsap = nfc_llcp_dsap(skb);
ssap = nfc_llcp_ssap(skb);
pr_debug("%d %d\n", dsap, ssap);
- nfc_llcp_parse_tlv(local, &skb->data[LLCP_HEADER_SIZE],
- skb->len - LLCP_HEADER_SIZE);
-
if (dsap != LLCP_SAP_SDP) {
- bound_sap = dsap;
-
- mutex_lock(&local->socket_lock);
- sock = local->sockets[dsap];
- if (sock == NULL) {
- mutex_unlock(&local->socket_lock);
+ sock = nfc_llcp_sock_get(local, dsap, LLCP_SAP_SDP);
+ if (sock == NULL || sock->sk.sk_state != LLCP_LISTEN) {
reason = LLCP_DM_NOBOUND;
goto fail;
}
-
- sock_hold(&sock->sk);
- mutex_unlock(&local->socket_lock);
-
- lock_sock(&sock->sk);
-
- if (sock->dsap == LLCP_SAP_SDP &&
- sock->sk.sk_state == LLCP_LISTEN)
- goto enqueue;
} else {
u8 *sn;
size_t sn_len;
@@ -559,40 +644,15 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local,
pr_debug("Service name length %zu\n", sn_len);
- mutex_lock(&local->socket_lock);
- for (bound_sap = 0; bound_sap < LLCP_LOCAL_SAP_OFFSET;
- bound_sap++) {
- sock = local->sockets[bound_sap];
- if (sock == NULL)
- continue;
-
- if (sock->service_name == NULL ||
- sock->service_name_len == 0)
- continue;
-
- if (sock->service_name_len != sn_len)
- continue;
-
- if (sock->dsap == LLCP_SAP_SDP &&
- sock->sk.sk_state == LLCP_LISTEN &&
- !memcmp(sn, sock->service_name, sn_len)) {
- pr_debug("Found service name at SAP %d\n",
- bound_sap);
- sock_hold(&sock->sk);
- mutex_unlock(&local->socket_lock);
-
- lock_sock(&sock->sk);
-
- goto enqueue;
- }
+ sock = nfc_llcp_sock_get_sn(local, sn, sn_len);
+ if (sock == NULL) {
+ reason = LLCP_DM_NOBOUND;
+ goto fail;
}
- mutex_unlock(&local->socket_lock);
}
- reason = LLCP_DM_NOBOUND;
- goto fail;
+ lock_sock(&sock->sk);
-enqueue:
parent = &sock->sk;
if (sk_acceptq_is_full(parent)) {
@@ -612,15 +672,19 @@ enqueue:
new_sock = nfc_llcp_sock(new_sk);
new_sock->dev = local->dev;
- new_sock->local = local;
+ new_sock->local = nfc_llcp_local_get(local);
+ new_sock->miu = local->remote_miu;
new_sock->nfc_protocol = sock->nfc_protocol;
- new_sock->ssap = bound_sap;
+ new_sock->ssap = sock->ssap;
new_sock->dsap = ssap;
new_sock->parent = parent;
+ nfc_llcp_parse_connection_tlv(new_sock, &skb->data[LLCP_HEADER_SIZE],
+ skb->len - LLCP_HEADER_SIZE);
+
pr_debug("new sock %p sk %p\n", new_sock, &new_sock->sk);
- list_add_tail(&new_sock->list, &sock->list);
+ nfc_llcp_sock_link(&local->sockets, new_sk);
nfc_llcp_accept_enqueue(&sock->sk, new_sk);
@@ -654,12 +718,12 @@ int nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock)
pr_debug("Remote ready %d tx queue len %d remote rw %d",
sock->remote_ready, skb_queue_len(&sock->tx_pending_queue),
- local->remote_rw);
+ sock->rw);
/* Try to queue some I frames for transmission */
while (sock->remote_ready &&
- skb_queue_len(&sock->tx_pending_queue) < local->remote_rw) {
- struct sk_buff *pdu, *pending_pdu;
+ skb_queue_len(&sock->tx_pending_queue) < sock->rw) {
+ struct sk_buff *pdu;
pdu = skb_dequeue(&sock->tx_queue);
if (pdu == NULL)
@@ -668,10 +732,7 @@ int nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock)
/* Update N(S)/N(R) */
nfc_llcp_set_nrns(sock, pdu);
- pending_pdu = skb_clone(pdu, GFP_KERNEL);
-
skb_queue_tail(&local->tx_queue, pdu);
- skb_queue_tail(&sock->tx_pending_queue, pending_pdu);
nr_frames++;
}
@@ -728,11 +789,21 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local,
llcp_sock->send_ack_n = nr;
- skb_queue_walk_safe(&llcp_sock->tx_pending_queue, s, tmp)
- if (nfc_llcp_ns(s) <= nr) {
- skb_unlink(s, &llcp_sock->tx_pending_queue);
- kfree_skb(s);
- }
+ /* Remove and free all skbs until ns == nr */
+ skb_queue_walk_safe(&llcp_sock->tx_pending_queue, s, tmp) {
+ skb_unlink(s, &llcp_sock->tx_pending_queue);
+ kfree_skb(s);
+
+ if (nfc_llcp_ns(s) == nr)
+ break;
+ }
+
+ /* Re-queue the remaining skbs for transmission */
+ skb_queue_reverse_walk_safe(&llcp_sock->tx_pending_queue,
+ s, tmp) {
+ skb_unlink(s, &llcp_sock->tx_pending_queue);
+ skb_queue_head(&local->tx_queue, s);
+ }
}
if (ptype == LLCP_PDU_RR)
@@ -740,7 +811,7 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local,
else if (ptype == LLCP_PDU_RNR)
llcp_sock->remote_ready = false;
- if (nfc_llcp_queue_i_frames(llcp_sock) == 0)
+ if (nfc_llcp_queue_i_frames(llcp_sock) == 0 && ptype == LLCP_PDU_I)
nfc_llcp_send_rr(llcp_sock);
release_sock(sk);
@@ -791,11 +862,7 @@ static void nfc_llcp_recv_cc(struct nfc_llcp_local *local, struct sk_buff *skb)
dsap = nfc_llcp_dsap(skb);
ssap = nfc_llcp_ssap(skb);
- llcp_sock = nfc_llcp_sock_get(local, dsap, ssap);
-
- if (llcp_sock == NULL)
- llcp_sock = nfc_llcp_sock_get(local, dsap, LLCP_SAP_SDP);
-
+ llcp_sock = nfc_llcp_connecting_sock_get(local, dsap);
if (llcp_sock == NULL) {
pr_err("Invalid CC\n");
nfc_llcp_send_dm(local, dsap, ssap, LLCP_DM_NOCONN);
@@ -803,11 +870,15 @@ static void nfc_llcp_recv_cc(struct nfc_llcp_local *local, struct sk_buff *skb)
return;
}
- llcp_sock->dsap = ssap;
sk = &llcp_sock->sk;
- nfc_llcp_parse_tlv(local, &skb->data[LLCP_HEADER_SIZE],
- skb->len - LLCP_HEADER_SIZE);
+ /* Unlink from connecting and link to the client array */
+ nfc_llcp_sock_unlink(&local->connecting_sockets, sk);
+ nfc_llcp_sock_link(&local->sockets, sk);
+ llcp_sock->dsap = ssap;
+
+ nfc_llcp_parse_connection_tlv(llcp_sock, &skb->data[LLCP_HEADER_SIZE],
+ skb->len - LLCP_HEADER_SIZE);
sk->sk_state = LLCP_CONNECTED;
sk->sk_state_change(sk);
@@ -891,6 +962,21 @@ void nfc_llcp_recv(void *data, struct sk_buff *skb, int err)
return;
}
+int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb)
+{
+ struct nfc_llcp_local *local;
+
+ local = nfc_llcp_find_local(dev);
+ if (local == NULL)
+ return -ENODEV;
+
+ local->rx_pending = skb_get(skb);
+ del_timer(&local->link_timer);
+ queue_work(local->rx_wq, &local->rx_work);
+
+ return 0;
+}
+
void nfc_llcp_mac_is_down(struct nfc_dev *dev)
{
struct nfc_llcp_local *local;
@@ -943,8 +1029,8 @@ int nfc_llcp_register_device(struct nfc_dev *ndev)
local->dev = ndev;
INIT_LIST_HEAD(&local->list);
+ kref_init(&local->ref);
mutex_init(&local->sdp_lock);
- mutex_init(&local->socket_lock);
init_timer(&local->link_timer);
local->link_timer.data = (unsigned long) local;
local->link_timer.function = nfc_llcp_symm_timer;
@@ -984,11 +1070,13 @@ int nfc_llcp_register_device(struct nfc_dev *ndev)
goto err_rx_wq;
}
+ local->sockets.lock = __RW_LOCK_UNLOCKED(local->sockets.lock);
+ local->connecting_sockets.lock = __RW_LOCK_UNLOCKED(local->connecting_sockets.lock);
+
nfc_llcp_build_gb(local);
local->remote_miu = LLCP_DEFAULT_MIU;
local->remote_lto = LLCP_DEFAULT_LTO;
- local->remote_rw = LLCP_DEFAULT_RW;
list_add(&llcp_devices, &local->list);
@@ -1015,14 +1103,7 @@ void nfc_llcp_unregister_device(struct nfc_dev *dev)
return;
}
- list_del(&local->list);
- nfc_llcp_socket_release(local);
- del_timer_sync(&local->link_timer);
- skb_queue_purge(&local->tx_queue);
- destroy_workqueue(local->tx_wq);
- destroy_workqueue(local->rx_wq);
- kfree_skb(local->rx_pending);
- kfree(local);
+ nfc_llcp_local_put(local);
}
int __init nfc_llcp_init(void)
diff --git a/net/nfc/llcp/llcp.h b/net/nfc/llcp/llcp.h
index 50680ce5ae43..7286c86982ff 100644
--- a/net/nfc/llcp/llcp.h
+++ b/net/nfc/llcp/llcp.h
@@ -40,12 +40,18 @@ enum llcp_state {
struct nfc_llcp_sock;
+struct llcp_sock_list {
+ struct hlist_head head;
+ rwlock_t lock;
+};
+
struct nfc_llcp_local {
struct list_head list;
struct nfc_dev *dev;
+ struct kref ref;
+
struct mutex sdp_lock;
- struct mutex socket_lock;
struct timer_list link_timer;
struct sk_buff_head tx_queue;
@@ -77,24 +83,26 @@ struct nfc_llcp_local {
u16 remote_lto;
u8 remote_opt;
u16 remote_wks;
- u8 remote_rw;
/* sockets array */
- struct nfc_llcp_sock *sockets[LLCP_MAX_SAP];
+ struct llcp_sock_list sockets;
+ struct llcp_sock_list connecting_sockets;
};
struct nfc_llcp_sock {
struct sock sk;
- struct list_head list;
struct nfc_dev *dev;
struct nfc_llcp_local *local;
u32 target_idx;
u32 nfc_protocol;
+ /* Link parameters */
u8 ssap;
u8 dsap;
char *service_name;
size_t service_name_len;
+ u8 rw;
+ u16 miu;
/* Link variables */
u8 send_n;
@@ -164,7 +172,11 @@ struct nfc_llcp_sock {
#define LLCP_DM_REJ 0x03
+void nfc_llcp_sock_link(struct llcp_sock_list *l, struct sock *s);
+void nfc_llcp_sock_unlink(struct llcp_sock_list *l, struct sock *s);
struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev);
+struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local);
+int nfc_llcp_local_put(struct nfc_llcp_local *local);
u8 nfc_llcp_get_sdp_ssap(struct nfc_llcp_local *local,
struct nfc_llcp_sock *sock);
u8 nfc_llcp_get_local_ssap(struct nfc_llcp_local *local);
@@ -179,8 +191,10 @@ void nfc_llcp_accept_enqueue(struct sock *parent, struct sock *sk);
struct sock *nfc_llcp_accept_dequeue(struct sock *sk, struct socket *newsock);
/* TLV API */
-int nfc_llcp_parse_tlv(struct nfc_llcp_local *local,
- u8 *tlv_array, u16 tlv_array_len);
+int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local,
+ u8 *tlv_array, u16 tlv_array_len);
+int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
+ u8 *tlv_array, u16 tlv_array_len);
/* Commands API */
void nfc_llcp_recv(void *data, struct sk_buff *skb, int err);
diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c
index 17a707db40eb..2c0b317344b7 100644
--- a/net/nfc/llcp/sock.c
+++ b/net/nfc/llcp/sock.c
@@ -111,7 +111,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
}
llcp_sock->dev = dev;
- llcp_sock->local = local;
+ llcp_sock->local = nfc_llcp_local_get(local);
llcp_sock->nfc_protocol = llcp_addr.nfc_protocol;
llcp_sock->service_name_len = min_t(unsigned int,
llcp_addr.service_name_len,
@@ -124,7 +124,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
if (llcp_sock->ssap == LLCP_MAX_SAP)
goto put_dev;
- local->sockets[llcp_sock->ssap] = llcp_sock;
+ nfc_llcp_sock_link(&local->sockets, sk);
pr_debug("Socket bound to SAP %d\n", llcp_sock->ssap);
@@ -382,15 +382,6 @@ static int llcp_sock_release(struct socket *sock)
goto out;
}
- mutex_lock(&local->socket_lock);
-
- if (llcp_sock == local->sockets[llcp_sock->ssap])
- local->sockets[llcp_sock->ssap] = NULL;
- else
- list_del_init(&llcp_sock->list);
-
- mutex_unlock(&local->socket_lock);
-
lock_sock(sk);
/* Send a DISC */
@@ -415,14 +406,12 @@ static int llcp_sock_release(struct socket *sock)
}
}
- /* Freeing the SAP */
- if ((sk->sk_state == LLCP_CONNECTED
- && llcp_sock->ssap > LLCP_LOCAL_SAP_OFFSET) ||
- sk->sk_state == LLCP_BOUND || sk->sk_state == LLCP_LISTEN)
- nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap);
+ nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap);
release_sock(sk);
+ nfc_llcp_sock_unlink(&local->sockets, sk);
+
out:
sock_orphan(sk);
sock_put(sk);
@@ -490,7 +479,8 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
}
llcp_sock->dev = dev;
- llcp_sock->local = local;
+ llcp_sock->local = nfc_llcp_local_get(local);
+ llcp_sock->miu = llcp_sock->local->remote_miu;
llcp_sock->ssap = nfc_llcp_get_local_ssap(local);
if (llcp_sock->ssap == LLCP_SAP_MAX) {
ret = -ENOMEM;
@@ -508,21 +498,26 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr,
llcp_sock->service_name_len,
GFP_KERNEL);
- local->sockets[llcp_sock->ssap] = llcp_sock;
+ nfc_llcp_sock_link(&local->connecting_sockets, sk);
ret = nfc_llcp_send_connect(llcp_sock);
if (ret)
- goto put_dev;
+ goto sock_unlink;
ret = sock_wait_state(sk, LLCP_CONNECTED,
sock_sndtimeo(sk, flags & O_NONBLOCK));
if (ret)
- goto put_dev;
+ goto sock_unlink;
release_sock(sk);
return 0;
+sock_unlink:
+ nfc_llcp_put_ssap(local, llcp_sock->ssap);
+
+ nfc_llcp_sock_unlink(&local->connecting_sockets, sk);
+
put_dev:
nfc_put_device(dev);
@@ -687,13 +682,14 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
llcp_sock->ssap = 0;
llcp_sock->dsap = LLCP_SAP_SDP;
+ llcp_sock->rw = LLCP_DEFAULT_RW;
+ llcp_sock->miu = LLCP_DEFAULT_MIU;
llcp_sock->send_n = llcp_sock->send_ack_n = 0;
llcp_sock->recv_n = llcp_sock->recv_ack_n = 0;
llcp_sock->remote_ready = 1;
skb_queue_head_init(&llcp_sock->tx_queue);
skb_queue_head_init(&llcp_sock->tx_pending_queue);
skb_queue_head_init(&llcp_sock->tx_backlog_queue);
- INIT_LIST_HEAD(&llcp_sock->list);
INIT_LIST_HEAD(&llcp_sock->accept_queue);
if (sock != NULL)
@@ -704,8 +700,6 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp)
void nfc_llcp_sock_free(struct nfc_llcp_sock *sock)
{
- struct nfc_llcp_local *local = sock->local;
-
kfree(sock->service_name);
skb_queue_purge(&sock->tx_queue);
@@ -714,12 +708,9 @@ void nfc_llcp_sock_free(struct nfc_llcp_sock *sock)
list_del_init(&sock->accept_queue);
- if (local != NULL && sock == local->sockets[sock->ssap])
- local->sockets[sock->ssap] = NULL;
- else
- list_del_init(&sock->list);
-
sock->parent = NULL;
+
+ nfc_llcp_local_put(sock->local);
}
static int llcp_sock_create(struct net *net, struct socket *sock,
diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c
index d560e6f13072..766a02b1dfa1 100644
--- a/net/nfc/nci/core.c
+++ b/net/nfc/nci/core.c
@@ -387,7 +387,8 @@ static int nci_dev_down(struct nfc_dev *nfc_dev)
return nci_close_device(ndev);
}
-static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols)
+static int nci_start_poll(struct nfc_dev *nfc_dev,
+ __u32 im_protocols, __u32 tm_protocols)
{
struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
int rc;
@@ -413,11 +414,11 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols)
return -EBUSY;
}
- rc = nci_request(ndev, nci_rf_discover_req, protocols,
+ rc = nci_request(ndev, nci_rf_discover_req, im_protocols,
msecs_to_jiffies(NCI_RF_DISC_TIMEOUT));
if (!rc)
- ndev->poll_prots = protocols;
+ ndev->poll_prots = im_protocols;
return rc;
}
@@ -521,9 +522,9 @@ static void nci_deactivate_target(struct nfc_dev *nfc_dev,
}
}
-static int nci_data_exchange(struct nfc_dev *nfc_dev, struct nfc_target *target,
- struct sk_buff *skb,
- data_exchange_cb_t cb, void *cb_context)
+static int nci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target,
+ struct sk_buff *skb,
+ data_exchange_cb_t cb, void *cb_context)
{
struct nci_dev *ndev = nfc_get_drvdata(nfc_dev);
int rc;
@@ -556,7 +557,7 @@ static struct nfc_ops nci_nfc_ops = {
.stop_poll = nci_stop_poll,
.activate_target = nci_activate_target,
.deactivate_target = nci_deactivate_target,
- .data_exchange = nci_data_exchange,
+ .im_transceive = nci_transceive,
};
/* ---- Interface to NCI drivers ---- */
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 581d419083aa..03c31db38f12 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -49,6 +49,8 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
[NFC_ATTR_COMM_MODE] = { .type = NLA_U8 },
[NFC_ATTR_RF_MODE] = { .type = NLA_U8 },
[NFC_ATTR_DEVICE_POWERED] = { .type = NLA_U8 },
+ [NFC_ATTR_IM_PROTOCOLS] = { .type = NLA_U32 },
+ [NFC_ATTR_TM_PROTOCOLS] = { .type = NLA_U32 },
};
static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target,
@@ -219,6 +221,68 @@ free_msg:
return -EMSGSIZE;
}
+int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_TM_ACTIVATED);
+ if (!hdr)
+ goto free_msg;
+
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
+ if (nla_put_u32(msg, NFC_ATTR_TM_PROTOCOLS, protocol))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
+int nfc_genl_tm_deactivated(struct nfc_dev *dev)
+{
+ struct sk_buff *msg;
+ void *hdr;
+
+ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+ NFC_EVENT_TM_DEACTIVATED);
+ if (!hdr)
+ goto free_msg;
+
+ if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+
+ genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+ return 0;
+
+nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+free_msg:
+ nlmsg_free(msg);
+ return -EMSGSIZE;
+}
+
int nfc_genl_device_added(struct nfc_dev *dev)
{
struct sk_buff *msg;
@@ -519,16 +583,25 @@ static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info)
struct nfc_dev *dev;
int rc;
u32 idx;
- u32 protocols;
+ u32 im_protocols = 0, tm_protocols = 0;
pr_debug("Poll start\n");
if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
- !info->attrs[NFC_ATTR_PROTOCOLS])
+ ((!info->attrs[NFC_ATTR_IM_PROTOCOLS] &&
+ !info->attrs[NFC_ATTR_PROTOCOLS]) &&
+ !info->attrs[NFC_ATTR_TM_PROTOCOLS]))
return -EINVAL;
idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
- protocols = nla_get_u32(info->attrs[NFC_ATTR_PROTOCOLS]);
+
+ if (info->attrs[NFC_ATTR_TM_PROTOCOLS])
+ tm_protocols = nla_get_u32(info->attrs[NFC_ATTR_TM_PROTOCOLS]);
+
+ if (info->attrs[NFC_ATTR_IM_PROTOCOLS])
+ im_protocols = nla_get_u32(info->attrs[NFC_ATTR_IM_PROTOCOLS]);
+ else if (info->attrs[NFC_ATTR_PROTOCOLS])
+ im_protocols = nla_get_u32(info->attrs[NFC_ATTR_PROTOCOLS]);
dev = nfc_get_device(idx);
if (!dev)
@@ -536,7 +609,7 @@ static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info)
mutex_lock(&dev->genl_data.genl_data_mutex);
- rc = nfc_start_poll(dev, protocols);
+ rc = nfc_start_poll(dev, im_protocols, tm_protocols);
if (!rc)
dev->genl_data.poll_req_pid = info->snd_pid;
diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h
index 3dd4232ae664..c5e42b79a418 100644
--- a/net/nfc/nfc.h
+++ b/net/nfc/nfc.h
@@ -55,6 +55,7 @@ int nfc_llcp_register_device(struct nfc_dev *dev);
void nfc_llcp_unregister_device(struct nfc_dev *dev);
int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len);
u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len);
+int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb);
int __init nfc_llcp_init(void);
void nfc_llcp_exit(void);
@@ -90,6 +91,12 @@ static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len)
return NULL;
}
+static inline int nfc_llcp_data_received(struct nfc_dev *dev,
+ struct sk_buff *skb)
+{
+ return 0;
+}
+
static inline int nfc_llcp_init(void)
{
return 0;
@@ -128,6 +135,9 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
u8 comm_mode, u8 rf_mode);
int nfc_genl_dep_link_down_event(struct nfc_dev *dev);
+int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol);
+int nfc_genl_tm_deactivated(struct nfc_dev *dev);
+
struct nfc_dev *nfc_get_device(unsigned int idx);
static inline void nfc_put_device(struct nfc_dev *dev)
@@ -158,7 +168,7 @@ int nfc_dev_up(struct nfc_dev *dev);
int nfc_dev_down(struct nfc_dev *dev);
-int nfc_start_poll(struct nfc_dev *dev, u32 protocols);
+int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols);
int nfc_stop_poll(struct nfc_dev *dev);