Hi.
We have two imx28 with linux kernel 3.10. we make a network device driver (eth2) to send message by the spi bus. The problems begins when We receive a message.
The driver works fine. We know that the protocol number of the messagte is htons(ETH_P_IPV6), because te skb->protocol=0x86dd.
struct sk_buff *skb;
skb->protocol = eth_type_trans(skb, dev);
In one imx28 We create a socket to send message:
sock = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
memset(&client, 0, sizeof(client));
client.sin6_family = AF_INET6;
client.sin6_addr = in6addr_any;
client.sin6_port = htons(20000);
client.sin6_scope_id=if_nametoindex("eth2");
//From
memset(&from, 0, sizeof(from));
from.sin6_family = AF_INET6;
inet_pton(AF_INET6,"ff02::2",(void*)&from.sin6_addr.s6_addr);
from.sin6_port = htons(15118);
//bind
bind(sockEnvio,(struct sockaddr *)&client,sizeof(client));
//send
sendto(sockEnvio, data, localIPLen, 0, (struct sockaddr *) &from, sizeof(from)) ;
In the other imx28 We create a socket to receive the message
sock = socket(AF_INET6, SOCK_DGRAM, htons(ETH_P_IPV6))) < 0)
memset(&client, 0, sizeof(client));
client.sin6_family = AF_INET6;
client.sin6_addr = in6addr_any;
client.sin6_port = htons(20000);
client.sin6_scope_id=if_nametoindex("eth2");
//bind
bind(sockEnvio,(struct sockaddr *)&client,sizeof(client));
//send
recvfrom(sockEnvio,buffer, BUFFER_SIZE , 0 , (struct sockaddr *) &from , &from_size);
When We change the type of the socket to socket(AF_PACKET , SOCK_RAW , htons(ETH_P_IPV6))) < 0) We receive the message.
Are we missing anything? Could you help us, please?
Thanks in advance for your help.
