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authorAmitkumar Karwar <akarwar@marvell.com>2013-12-02 23:17:51 -0800
committerJohn W. Linville <linville@tuxdriver.com>2013-12-09 15:35:28 -0500
commitc613d16fa77fb7738a436ba23979ecf60ec82494 (patch)
treed6fcfe4c45cb1217708c20713da244558fce8e93 /drivers/net/wireless/mwifiex/sta_rx.c
parent1bf947a79177643f33b875586642b61cb175782a (diff)
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 <akarwar@marvell.com> Signed-off-by: Bing Zhao <bzhao@marvell.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/mwifiex/sta_rx.c')
-rw-r--r--drivers/net/wireless/mwifiex/sta_rx.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/wireless/mwifiex/sta_rx.c b/drivers/net/wireless/mwifiex/sta_rx.c
index 241c0e5fc8f..45238995952 100644
--- a/drivers/net/wireless/mwifiex/sta_rx.c
+++ b/drivers/net/wireless/mwifiex/sta_rx.c
@@ -94,8 +94,12 @@ int mwifiex_process_rx_packet(struct mwifiex_private *priv,
rx_pkt_hdr = (void *)local_rx_pd +
le16_to_cpu(local_rx_pd->rx_pkt_offset);
- 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
* EthernetII header, keep the src/dst and snap_type