From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Add parsing Extended Flow Specification option in L2CAP Config Request
Based upon haijun.liu <haijun.liu@xxxxxxxxxxx> series of patches
(sent Sun, 22 Aug 2010)
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
net/bluetooth/l2cap_core.c | 43 +++++++++++++++++++++++++++++++++++++++++++
1 files changed, 43 insertions(+), 0 deletions(-)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index f5c4bbb..255dada 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2115,6 +2115,8 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
int type, hint, olen;
unsigned long val;
struct l2cap_conf_rfc rfc = { .mode = L2CAP_MODE_BASIC };
+ struct l2cap_conf_efs efs;
+ u8 remote_efs = 0;
u16 mtu = L2CAP_DEFAULT_MTU;
u16 result = L2CAP_CONF_SUCCESS;
u16 size;
@@ -2147,7 +2149,12 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
case L2CAP_CONF_FCS:
if (val == L2CAP_FCS_NONE)
set_bit(CONF_NO_FCS_RECV, &chan->conf_state);
+ break;
+ case L2CAP_CONF_EFS:
+ remote_efs = 1;
+ if (olen == sizeof(efs))
+ memcpy(&efs, (void *) val, olen);
break;
case L2CAP_CONF_EWS:
@@ -2182,6 +2189,9 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
break;
}
+ if (remote_efs && __l2cap_efs_supported(chan))
+ set_bit(FLAG_EFS_ENABLE, &chan->flags);
+
if (chan->mode != rfc.mode)
return -ECONNREFUSED;
@@ -2200,6 +2210,26 @@ done:
sizeof(rfc), (unsigned long) &rfc);
}
+ /*
+ Add extended flow specification option check here.
+ */
+ if (result == L2CAP_CONF_SUCCESS && remote_efs) {
+ if (!test_bit(FLAG_EFS_ENABLE, &chan->flags))
+ return -ECONNREFUSED;
+
+ if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
+ efs.stype != L2CAP_SERV_NOTRAFIC &&
+ efs.stype != chan->local_stype) {
+
+ result = L2CAP_CONF_UNACCEPT;
+
+ if (chan->num_conf_req >= 1)
+ return -ECONNREFUSED;
+
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
+ sizeof(efs), (unsigned long) &efs);
+ }
+ }
if (result == L2CAP_CONF_SUCCESS) {
/* Configure output options and let the other side know
@@ -2245,6 +2275,19 @@ done:
l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
sizeof(rfc), (unsigned long) &rfc);
+ if (test_bit(FLAG_EFS_ENABLE, &chan->flags)) {
+ chan->remote_id = efs.id;
+ chan->remote_stype = efs.stype;
+ chan->remote_msdu = le16_to_cpu(efs.msdu);
+ chan->remote_flush_to =
+ le32_to_cpu(efs.flush_to);
+ chan->remote_acc_lat =
+ le32_to_cpu(efs.acc_lat);
+ chan->remote_sdu_itime =
+ le32_to_cpu(efs.sdu_itime);
+ l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS,
+ sizeof(efs), (unsigned long) &efs);
+ }
break;
case L2CAP_MODE_STREAMING:
--
1.7.4.1
--
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