diff options
| author | sjur.brandeland@stericsson.com <sjur.brandeland@stericsson.com> | 2012-03-11 11:28:32 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-11 23:38:16 +0100 |
| commit | e3abcc2a8538f7d5f64dbf85404bdf8a1d1581b3 (patch) | |
| tree | 68ea01fce98ab33507788f2c1ae8f830c077e987 /net | |
| parent | caif: Fix for a race in socket transmit with flow control. (diff) | |
| download | linux-e3abcc2a8538f7d5f64dbf85404bdf8a1d1581b3.tar.xz linux-e3abcc2a8538f7d5f64dbf85404bdf8a1d1581b3.zip | |
caif: make zero a legal caif connetion id.
Connection ID configured through RTNL must allow zero as
connection id. If connection-id is not given when creating the
interface, configure a loopback interface using ifindex as
connection-id.
Signed-off-by: Sjur Brændeland <sjur.brandeland@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/caif/chnl_net.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/caif/chnl_net.c b/net/caif/chnl_net.c index e866234d0e5a..20618dd3088b 100644 --- a/net/caif/chnl_net.c +++ b/net/caif/chnl_net.c @@ -28,6 +28,7 @@ /* 5 sec. connect timeout */ #define CONNECT_TIMEOUT (5 * HZ) #define CAIF_NET_DEFAULT_QUEUE_LEN 500 +#define UNDEF_CONNID 0xffffffff /*This list is protected by the rtnl lock. */ static LIST_HEAD(chnl_net_list); @@ -408,7 +409,7 @@ static void ipcaif_net_setup(struct net_device *dev) priv->conn_req.link_selector = CAIF_LINK_HIGH_BANDW; priv->conn_req.priority = CAIF_PRIO_LOW; /* Insert illegal value */ - priv->conn_req.sockaddr.u.dgm.connection_id = 0; + priv->conn_req.sockaddr.u.dgm.connection_id = UNDEF_CONNID; priv->flowenabled = false; init_waitqueue_head(&priv->netmgmt_wq); @@ -471,9 +472,11 @@ static int ipcaif_newlink(struct net *src_net, struct net_device *dev, else list_add(&caifdev->list_field, &chnl_net_list); - /* Take ifindex as connection-id if null */ - if (caifdev->conn_req.sockaddr.u.dgm.connection_id == 0) + /* Use ifindex as connection id, and use loopback channel default. */ + if (caifdev->conn_req.sockaddr.u.dgm.connection_id == UNDEF_CONNID) { caifdev->conn_req.sockaddr.u.dgm.connection_id = dev->ifindex; + caifdev->conn_req.protocol = CAIFPROTO_DATAGRAM_LOOP; + } return ret; } |