diff options
| author | Dale Rahn <drahn@cvs.openbsd.org> | 2007-02-26 15:41:29 +0000 |
|---|---|---|
| committer | Dale Rahn <drahn@cvs.openbsd.org> | 2007-02-26 15:41:29 +0000 |
| commit | e8548968d65be2932de040d64de4e2aa50f7dc73 (patch) | |
| tree | 27765f4689d248db888c7d97edcd645d2fbe3aff /sys/dev | |
| parent | 6cb71475498c3c6d872fdd2bec32b516b20e392d (diff) | |
Make the buffer size more reasonable, drop packets that dont fit in buffer.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/usb/if_cdcef.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sys/dev/usb/if_cdcef.c b/sys/dev/usb/if_cdcef.c index 8bb8b0822ee..9a507509286 100644 --- a/sys/dev/usb/if_cdcef.c +++ b/sys/dev/usb/if_cdcef.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_cdcef.c,v 1.9 2007/02/24 21:57:27 drahn Exp $ */ +/* $OpenBSD: if_cdcef.c,v 1.10 2007/02/26 15:41:28 drahn Exp $ */ /* * Copyright (c) 2007 Dale Rahn <drahn@openbsd.org> @@ -55,7 +55,8 @@ #define CDCEF_PRODUCT_STRING "CDC Ethernet Emulation" #define CDCEF_SERIAL_STRING "1.00" -#define CDCEF_BUFSZ 65536 +#define CDCEF_BUFSZ 1600 + struct cdcef_softc { struct usbf_function sc_dev; @@ -290,9 +291,11 @@ cdcef_start(struct ifnet *ifp) return; } - - if (sc->sc_listening == 0) { - /* drop packet because reciever is not listening */ + if (sc->sc_listening == 0 || m_head->mpkthdr.len > CDCEF_BUFSZ) { + /* + * drop packet because reciever is not listening, + * or if packet is larger than xmit buffer + */ IFQ_DEQUEUE(&ifp->if_snd, m_head); m_freem(m_head); return; |