iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

qed: Fix non TCP packets should be dropped on iWARP ll2 connection

Browse Source 
[ Upstream commit 16da09047d3fb991dc48af41f6d255fd578e8ca2 ]

FW workaround. The iWARP LL2 connection did not expect TCP packets
to arrive on it's connection. The fix drops any non-tcp packets

Fixes b5c29ca ("qed: iWARP CM - setup a ll2 connection for handling
SYN packets")

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michal Kalderon 2018-03-14 14:49:28 +02:00 committed by Greg Kroah-Hartman
parent e44c173305
commit 497166d637
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/net/ethernet/qlogic/qed/qed_iwarp.c
View File

@ -1663,6 +1663,13 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
iph = (struct iphdr *)((u8 *)(ethh) + eth_hlen);
if (eth_type == ETH_P_IP) {
if (iph->protocol != IPPROTO_TCP) {
DP_NOTICE(p_hwfn,
"Unexpected ip protocol on ll2 %x\n",
iph->protocol);
return -EINVAL;
}
cm_info->local_ip[0] = ntohl(iph->daddr);
cm_info->remote_ip[0] = ntohl(iph->saddr);
cm_info->ip_version = TCP_IPV4;
@ -1671,6 +1678,14 @@ qed_iwarp_parse_rx_pkt(struct qed_hwfn *p_hwfn,
*payload_len = ntohs(iph->tot_len) - ip_hlen;
} else if (eth_type == ETH_P_IPV6) {
ip6h = (struct ipv6hdr *)iph;
if (ip6h->nexthdr != IPPROTO_TCP) {
DP_NOTICE(p_hwfn,
"Unexpected ip protocol on ll2 %x\n",
iph->protocol);
return -EINVAL;
}
for (i = 0; i < 4; i++) {
cm_info->local_ip[i] =
ntohl(ip6h->daddr.in6_u.u6_addr32[i]);