Anton wrote: > Hi, > > Following on from a previous (now lost :-)) posting, I have been trying > to send out IPv6 packets from a kernel module using the kern_sendmsg() > function. Since in theory I need this function to be started in > interrupt context (actually, softirq context), but since this is > impossible because kern_sendmsg() needs to sleep, I have created a work > queue which calls the kern_sendmsg() function separately. The work queue > is scheduled from the softirq context (actually, at the moment this > happens from a Netfilter hook). The work queue function creates a msghdr > structure, fills in a sin6_addr structure, calls sock_create_kern() and > then uses this socket to send an IPv6 packet, which consists of a header > (struct ipv6hdr *iphdr) and some data following on from this. The above > packet is placed in the msghdr structure by setting (after the > appropriate initializations): > msg.msg_iov->iov_base = (char *) ip6hdr; > msg.msg_iov->iov_len = sizeof( struct ipv6hdr + ntohs( > ip6hdr->payload_len ) );
Shouldn't this be: msg.msg_iov->iov_len = sizeof (struct ipv6hdr) + ntohs (ip6hdr->payload_len); Seems you use sizeof (nthos (...)), and that seems wrong. -- Roar B. Rotvik - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html