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| author | Eric Dumazet <edumazet@google.com> | 2012-08-24 01:47:26 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-08-30 12:32:14 -0400 |
| commit | ee13040901c11b016d996ab5a946acaaa3461737 (patch) | |
| tree | a2665e1b0605559d28dc0ed30866491272f8d753 /net/core/netpoll.c | |
| parent | 6549dd43c04327071571edf7aea4465b16539422 (diff) | |
| download | blackbird-op-linux-ee13040901c11b016d996ab5a946acaaa3461737.tar.gz blackbird-op-linux-ee13040901c11b016d996ab5a946acaaa3461737.zip | |
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: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/netpoll.c')
| -rw-r--r-- | net/core/netpoll.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index 346b1eb83a1f..5af9c2692506 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -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; |
