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Diffstat (limited to 'net/bluetooth/a2mp.c')
-rw-r--r--net/bluetooth/a2mp.c92
1 files changed, 56 insertions, 36 deletions
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 17f33a62f6d..9514cc9e850 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -15,8 +15,9 @@
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "a2mp.h"
+#include "amp.h"
/* Global AMP Manager list */
LIST_HEAD(amp_mgr_list);
@@ -75,33 +76,26 @@ u8 __next_ident(struct amp_mgr *mgr)
return mgr->ident;
}
-static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
-{
- cl->id = 0;
- cl->type = 0;
- cl->status = 1;
-}
-
/* hci_dev_list shall be locked */
-static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
+static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl)
{
- int i = 0;
struct hci_dev *hdev;
+ int i = 1;
- __a2mp_cl_bredr(cl);
+ cl[0].id = AMP_ID_BREDR;
+ cl[0].type = AMP_TYPE_BREDR;
+ cl[0].status = AMP_STATUS_BLUETOOTH_ONLY;
list_for_each_entry(hdev, &hci_dev_list, list) {
- /* Iterate through AMP controllers */
- if (hdev->id == HCI_BREDR_ID)
- continue;
-
- /* Starting from second entry */
- if (++i >= num_ctrl)
- return;
-
- cl[i].id = hdev->id;
- cl[i].type = hdev->amp_type;
- cl[i].status = hdev->amp_status;
+ if (hdev->dev_type == HCI_AMP) {
+ cl[i].id = hdev->id;
+ cl[i].type = hdev->amp_type;
+ if (test_bit(HCI_UP, &hdev->flags))
+ cl[i].status = hdev->amp_status;
+ else
+ cl[i].status = AMP_STATUS_POWERED_DOWN;
+ i++;
+ }
}
}
@@ -129,6 +123,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
struct a2mp_discov_rsp *rsp;
u16 ext_feat;
u8 num_ctrl;
+ struct hci_dev *hdev;
if (len < sizeof(*req))
return -EINVAL;
@@ -152,7 +147,14 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
read_lock(&hci_dev_list_lock);
- num_ctrl = __hci_num_ctrl();
+ /* at minimum the BR/EDR needs to be listed */
+ num_ctrl = 1;
+
+ list_for_each_entry(hdev, &hci_dev_list, list) {
+ if (hdev->dev_type == HCI_AMP)
+ num_ctrl++;
+ }
+
len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp);
rsp = kmalloc(len, GFP_ATOMIC);
if (!rsp) {
@@ -160,10 +162,10 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
return -ENOMEM;
}
- rsp->mtu = __constant_cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU);
+ rsp->mtu = cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU);
rsp->ext_feat = 0;
- __a2mp_add_cl(mgr, rsp->cl, num_ctrl);
+ __a2mp_add_cl(mgr, rsp->cl);
read_unlock(&hci_dev_list_lock);
@@ -208,7 +210,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type,
cl->status);
- if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) {
+ if (cl->id != AMP_ID_BREDR && cl->type != AMP_TYPE_BREDR) {
struct a2mp_info_req req;
found = true;
@@ -233,7 +235,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
BT_DBG("chan %p state %s", chan,
state_to_string(chan->state));
- if (chan->chan_type == L2CAP_CHAN_CONN_FIX_A2MP)
+ if (chan->scid == L2CAP_CID_A2MP)
continue;
l2cap_chan_lock(chan);
@@ -344,7 +346,7 @@ static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb,
tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
hdev = hci_dev_get(req->id);
- if (!hdev || hdev->amp_type == HCI_BREDR || tmp) {
+ if (!hdev || hdev->amp_type == AMP_TYPE_BREDR || tmp) {
struct a2mp_amp_assoc_rsp rsp;
rsp.id = req->id;
@@ -451,7 +453,7 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
rsp.remote_id = req->local_id;
hdev = hci_dev_get(req->remote_id);
- if (!hdev || hdev->amp_type != HCI_AMP) {
+ if (!hdev || hdev->amp_type == AMP_TYPE_BREDR) {
rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
goto send_rsp;
}
@@ -535,7 +537,8 @@ static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
goto send_rsp;
}
- hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, mgr->l2cap_conn->dst);
+ hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK,
+ &mgr->l2cap_conn->hcon->dst);
if (!hcon) {
BT_ERR("No phys link exist");
rsp.status = A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS;
@@ -646,7 +649,7 @@ static int a2mp_chan_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
if (err) {
struct a2mp_cmd_rej rej;
- rej.reason = __constant_cpu_to_le16(0);
+ rej.reason = cpu_to_le16(0);
hdr = (void *) skb->data;
BT_DBG("Send A2MP Rej: cmd 0x%2.2x err %d", hdr->code, err);
@@ -669,7 +672,8 @@ static void a2mp_chan_close_cb(struct l2cap_chan *chan)
l2cap_chan_put(chan);
}
-static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state)
+static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state,
+ int err)
{
struct amp_mgr *mgr = chan->data;
@@ -691,7 +695,13 @@ static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state)
static struct sk_buff *a2mp_chan_alloc_skb_cb(struct l2cap_chan *chan,
unsigned long len, int nb)
{
- return bt_skb_alloc(len, GFP_KERNEL);
+ struct sk_buff *skb;
+
+ skb = bt_skb_alloc(len, GFP_KERNEL);
+ if (!skb)
+ return ERR_PTR(-ENOMEM);
+
+ return skb;
}
static struct l2cap_ops a2mp_chan_ops = {
@@ -706,6 +716,9 @@ static struct l2cap_ops a2mp_chan_ops = {
.teardown = l2cap_chan_no_teardown,
.ready = l2cap_chan_no_ready,
.defer = l2cap_chan_no_defer,
+ .resume = l2cap_chan_no_resume,
+ .set_shutdown = l2cap_chan_no_set_shutdown,
+ .get_sndtimeo = l2cap_chan_no_get_sndtimeo,
};
static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)
@@ -719,7 +732,11 @@ static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)
BT_DBG("chan %p", chan);
- chan->chan_type = L2CAP_CHAN_CONN_FIX_A2MP;
+ chan->chan_type = L2CAP_CHAN_FIXED;
+ chan->scid = L2CAP_CID_A2MP;
+ chan->dcid = L2CAP_CID_A2MP;
+ chan->omtu = L2CAP_A2MP_DEFAULT_MTU;
+ chan->imtu = L2CAP_A2MP_DEFAULT_MTU;
chan->flush_to = L2CAP_DEFAULT_FLUSH_TO;
chan->ops = &a2mp_chan_ops;
@@ -829,6 +846,9 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
{
struct amp_mgr *mgr;
+ if (conn->hcon->type != ACL_LINK)
+ return NULL;
+
mgr = amp_mgr_create(conn, false);
if (!mgr) {
BT_ERR("Could not create AMP manager");
@@ -871,7 +891,7 @@ void a2mp_send_getinfo_rsp(struct hci_dev *hdev)
rsp.id = hdev->id;
rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
- if (hdev->amp_type != HCI_BREDR) {
+ if (hdev->amp_type != AMP_TYPE_BREDR) {
rsp.status = 0;
rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);
rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 07:45:00 +0000