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Commit 6f61fd47 authored by Gustavo F. Padovan's avatar Gustavo F. Padovan
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Bluetooth: Move SDU related vars to struct l2cap_chan 

As part of the moving channel stuff to l2cap_chan.
Signed-off-by: default avatarGustavo F. Padovan <padovan@profusion.mobi>
parent 6a026610
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Showing with 41 additions and 41 deletions
include/net/bluetooth/l2cap.h
View file @ 6f61fd47
......@@ -298,6 +298,10 @@ struct l2cap_chan {
__u8 unacked_frames;
__u8 retry_count;
__u8 num_acked;
__u16 sdu_len;
__u16 partial_sdu_len;
struct sk_buff *sdu;
struct list_head list;
};
......@@ -364,10 +368,6 @@ struct l2cap_pinfo {
__u8 conf_state;
__u16 sdu_len;
__u16 partial_sdu_len;
struct sk_buff *sdu;
__u8 tx_win;
__u8 max_tx;
__u8 remote_tx_win;
......
net/bluetooth/l2cap_core.c
View file @ 6f61fd47
......@@ -2875,13 +2875,13 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
if (chan->conn_state & L2CAP_CONN_SAR_SDU)
goto drop;
pi->sdu_len = get_unaligned_le16(skb->data);
chan->sdu_len = get_unaligned_le16(skb->data);
if (pi->sdu_len > pi->imtu)
if (chan->sdu_len > pi->imtu)
goto disconnect;
pi->sdu = bt_skb_alloc(pi->sdu_len, GFP_ATOMIC);
if (!pi->sdu)
chan->sdu = bt_skb_alloc(chan->sdu_len, GFP_ATOMIC);
if (!chan->sdu)
return -ENOMEM;
/* pull sdu_len bytes only after alloc, because of Local Busy
......@@ -2889,24 +2889,24 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
* only once, i.e., when alloc does not fail */
skb_pull(skb, 2);
memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
chan->conn_state |= L2CAP_CONN_SAR_SDU;
pi->partial_sdu_len = skb->len;
chan->partial_sdu_len = skb->len;
break;
case L2CAP_SDU_CONTINUE:
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
goto disconnect;
if (!pi->sdu)
if (!chan->sdu)
goto disconnect;
pi->partial_sdu_len += skb->len;
if (pi->partial_sdu_len > pi->sdu_len)
chan->partial_sdu_len += skb->len;
if (chan->partial_sdu_len > chan->sdu_len)
goto drop;
memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
break;
......@@ -2914,22 +2914,22 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
goto disconnect;
if (!pi->sdu)
if (!chan->sdu)
goto disconnect;
if (!(chan->conn_state & L2CAP_CONN_SAR_RETRY)) {
pi->partial_sdu_len += skb->len;
chan->partial_sdu_len += skb->len;
if (pi->partial_sdu_len > pi->imtu)
if (chan->partial_sdu_len > pi->imtu)
goto drop;
if (pi->partial_sdu_len != pi->sdu_len)
if (chan->partial_sdu_len != chan->sdu_len)
goto drop;
memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
}
_skb = skb_clone(pi->sdu, GFP_ATOMIC);
_skb = skb_clone(chan->sdu, GFP_ATOMIC);
if (!_skb) {
chan->conn_state |= L2CAP_CONN_SAR_RETRY;
return -ENOMEM;
......@@ -2945,7 +2945,7 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
chan->conn_state &= ~L2CAP_CONN_SAR_RETRY;
chan->conn_state &= ~L2CAP_CONN_SAR_SDU;
kfree_skb(pi->sdu);
kfree_skb(chan->sdu);
break;
}
......@@ -2953,8 +2953,8 @@ static int l2cap_ertm_reassembly_sdu(struct l2cap_chan *chan, struct sk_buff *sk
return 0;
drop:
kfree_skb(pi->sdu);
pi->sdu = NULL;
kfree_skb(chan->sdu);
chan->sdu = NULL;
disconnect:
l2cap_send_disconn_req(pi->conn, chan->sk, ECONNRESET);
......@@ -3104,7 +3104,7 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
switch (control & L2CAP_CTRL_SAR) {
case L2CAP_SDU_UNSEGMENTED:
if (chan->conn_state & L2CAP_CONN_SAR_SDU) {
kfree_skb(pi->sdu);
kfree_skb(chan->sdu);
break;
}
......@@ -3116,28 +3116,28 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
case L2CAP_SDU_START:
if (chan->conn_state & L2CAP_CONN_SAR_SDU) {
kfree_skb(pi->sdu);
kfree_skb(chan->sdu);
break;
}
pi->sdu_len = get_unaligned_le16(skb->data);
chan->sdu_len = get_unaligned_le16(skb->data);
skb_pull(skb, 2);
if (pi->sdu_len > pi->imtu) {
if (chan->sdu_len > pi->imtu) {
err = -EMSGSIZE;
break;
}
pi->sdu = bt_skb_alloc(pi->sdu_len, GFP_ATOMIC);
if (!pi->sdu) {
chan->sdu = bt_skb_alloc(chan->sdu_len, GFP_ATOMIC);
if (!chan->sdu) {
err = -ENOMEM;
break;
}
memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
chan->conn_state |= L2CAP_CONN_SAR_SDU;
pi->partial_sdu_len = skb->len;
chan->partial_sdu_len = skb->len;
err = 0;
break;
......@@ -3145,11 +3145,11 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
break;
memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
pi->partial_sdu_len += skb->len;
if (pi->partial_sdu_len > pi->sdu_len)
kfree_skb(pi->sdu);
chan->partial_sdu_len += skb->len;
if (chan->partial_sdu_len > chan->sdu_len)
kfree_skb(chan->sdu);
else
err = 0;
......@@ -3159,16 +3159,16 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
if (!(chan->conn_state & L2CAP_CONN_SAR_SDU))
break;
memcpy(skb_put(pi->sdu, skb->len), skb->data, skb->len);
memcpy(skb_put(chan->sdu, skb->len), skb->data, skb->len);
chan->conn_state &= ~L2CAP_CONN_SAR_SDU;
pi->partial_sdu_len += skb->len;
chan->partial_sdu_len += skb->len;
if (pi->partial_sdu_len > pi->imtu)
if (chan->partial_sdu_len > pi->imtu)
goto drop;
if (pi->partial_sdu_len == pi->sdu_len) {
_skb = skb_clone(pi->sdu, GFP_ATOMIC);
if (chan->partial_sdu_len == chan->sdu_len) {
_skb = skb_clone(chan->sdu, GFP_ATOMIC);
err = sock_queue_rcv_skb(chan->sk, _skb);
if (err < 0)
kfree_skb(_skb);
......@@ -3176,7 +3176,7 @@ static int l2cap_streaming_reassembly_sdu(struct l2cap_chan *chan, struct sk_buf
err = 0;
drop:
kfree_skb(pi->sdu);
kfree_skb(chan->sdu);
break;
}
......
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