From 58a406def4374c08d063ec9ff97da74a74e1a9bf Mon Sep 17 00:00:00 2001 From: Ido Schimmel Date: Sun, 15 Sep 2019 09:46:35 +0300 Subject: netdevsim: Set offsets to various protocol layers The driver periodically generates "trapped" UDP packets that it then passes on to devlink. Set the offsets to the various protocol layers. This is a prerequisite to the next patch, where drop monitor is taught to check that the offset to the MAC header was set. Acked-by: Jiri Pirko Signed-off-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/netdevsim/dev.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index 7fba7b271a57..56576d4f34a5 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -374,12 +374,14 @@ static struct sk_buff *nsim_dev_trap_skb_build(void) return NULL; tot_len = sizeof(struct iphdr) + sizeof(struct udphdr) + data_len; + skb_reset_mac_header(skb); eth = skb_put(skb, sizeof(struct ethhdr)); eth_random_addr(eth->h_dest); eth_random_addr(eth->h_source); eth->h_proto = htons(ETH_P_IP); skb->protocol = htons(ETH_P_IP); + skb_set_network_header(skb, skb->len); iph = skb_put(skb, sizeof(struct iphdr)); iph->protocol = IPPROTO_UDP; iph->saddr = in_aton("192.0.2.1"); @@ -392,6 +394,7 @@ static struct sk_buff *nsim_dev_trap_skb_build(void) iph->check = 0; iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl); + skb_set_transport_header(skb, skb->len); udph = skb_put_zero(skb, sizeof(struct udphdr) + data_len); get_random_bytes(&udph->source, sizeof(u16)); get_random_bytes(&udph->dest, sizeof(u16)); -- cgit v1.2.3-70-g09d2