Commit ee130409 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

netpoll: provide an IP ident in UDP frames 



Let's fill IP header ident field with a meaningful value,
it might help some setups.

Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6549dd43

net/core/netpoll.c

+2 −1
Original line number Diff line number Diff line
@@ -388,6 +388,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len) 
	struct udphdr *udph;

	struct iphdr *iph;

	struct ethhdr *eth;

	static atomic_t ip_ident;



	udp_len = len + sizeof(*udph);

	ip_len = udp_len + sizeof(*iph);
@@ -423,7 +424,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len) 
	put_unaligned(0x45, (unsigned char *)iph);

	iph->tos      = 0;

	put_unaligned(htons(ip_len), &(iph->tot_len));

	iph->id       = 0;

	iph->id       = htons(atomic_inc_return(&ip_ident));

	iph->frag_off = 0;

	iph->ttl      = 64;

	iph->protocol = IPPROTO_UDP;