From c613d16fa77fb7738a436ba23979ecf60ec82494 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Mon, 2 Dec 2013 23:17:51 -0800 Subject: mwifiex: fix an issue with Appletalk devices SNAP/LLC header in the AARP packet is being stripped off while preparing an EthernetII header. Annex M, Table M.3 in 802.11 spec says that some header (ex. AppleTalk AARP(2)) should pass through untouched. This patch modifies the check to exclude/include EthernetII header translation for special cases. Signed-off-by: Amitkumar Karwar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/uap_txrx.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers/net/wireless/mwifiex/uap_txrx.c') diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c index 0d4b7d62ebc..a0bd954b3ab 100644 --- a/drivers/net/wireless/mwifiex/uap_txrx.c +++ b/drivers/net/wireless/mwifiex/uap_txrx.c @@ -111,8 +111,12 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv, return; } - if (!memcmp(&rx_pkt_hdr->rfc1042_hdr, rfc1042_header, - sizeof(rfc1042_header))) { + if ((!memcmp(&rx_pkt_hdr->rfc1042_hdr, bridge_tunnel_header, + sizeof(bridge_tunnel_header))) || + (!memcmp(&rx_pkt_hdr->rfc1042_hdr, rfc1042_header, + sizeof(rfc1042_header)) && + ntohs(rx_pkt_hdr->rfc1042_hdr.snap_type) != ETH_P_AARP && + ntohs(rx_pkt_hdr->rfc1042_hdr.snap_type) != ETH_P_IPX)) { /* Replace the 803 header and rfc1042 header (llc/snap) with * an Ethernet II header, keep the src/dst and snap_type * (ethertype). -- cgit v1.2.3-70-g09d2