diff options
| author | Tilman Schmidt <tilman@imap.cc> | 2010-06-21 17:54:19 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-26 08:16:59 +0400 |
| commit | e7752ee280608a24e27f163641121bdc2c68d6af (patch) | |
| tree | a731b1d9b2c95732d2882a52bb20e4af7546de59 /drivers/isdn/gigaset/capi.c | |
| parent | ed770f01360b392564650bf1553ce723fa46afec (diff) | |
| download | linux-e7752ee280608a24e27f163641121bdc2c68d6af.tar.xz | |
isdn/gigaset: honor CAPI application's buffer size request
Fix the Gigaset CAPI driver to limit the length of a connection's
payload data receive buffers to the corresponding CAPI application's
data buffer size, as some real-life CAPI applications tend to be
rather unhappy if they receive bigger data blocks than requested.
Impact: bugfix
Signed-off-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/isdn/gigaset/capi.c')
| -rw-r--r-- | drivers/isdn/gigaset/capi.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c index 8f78f15c8ef7..245a6083f79d 100644 --- a/drivers/isdn/gigaset/capi.c +++ b/drivers/isdn/gigaset/capi.c @@ -80,6 +80,7 @@ struct gigaset_capi_appl { struct list_head ctrlist; struct gigaset_capi_appl *bcnext; u16 id; + struct capi_register_params rp; u16 nextMessageNumber; u32 listenInfoMask; u32 listenCIPmask; @@ -945,6 +946,7 @@ static void gigaset_register_appl(struct capi_ctr *ctr, u16 appl, return; } ap->id = appl; + ap->rp = *rp; list_add(&ap->ctrlist, &iif->appls); } @@ -1166,6 +1168,9 @@ static void do_connect_req(struct gigaset_capi_ctr *iif, } ap->bcnext = NULL; bcs->ap = ap; + bcs->rx_bufsize = ap->rp.datablklen; + dev_kfree_skb(bcs->rx_skb); + gigaset_new_rx_skb(bcs); cmsg->adr.adrPLCI |= (bcs->channel + 1) << 8; /* build command table */ @@ -1435,6 +1440,9 @@ static void do_connect_resp(struct gigaset_capi_ctr *iif, CapiCallGivenToOtherApplication); ap->bcnext = NULL; bcs->ap = ap; + bcs->rx_bufsize = ap->rp.datablklen; + dev_kfree_skb(bcs->rx_skb); + gigaset_new_rx_skb(bcs); bcs->chstate |= CHS_NOTIFY_LL; /* check/encode B channel protocol */ |