Previously, all net_rcv_msg-messages sent by netif_rx_handle were malformed. It never was a problem in practice, since the messages are not complex and thus the kernel does not try to parse the message.
struct net_rcv_msg contains an additional field of type boolean_t. This field has no associated type descriptor, so it must not be included in the message. * libmachdev/net.c (netif_rx_handle): Account for the extra field in the msgh_size calculation. --- libmachdev/net.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/libmachdev/net.c b/libmachdev/net.c index 07bb74a..e04b558 100644 --- a/libmachdev/net.c +++ b/libmachdev/net.c @@ -243,8 +243,10 @@ netif_rx_handle (char *data, int len, struct net_device *dev) pack_size = len - sizeof (struct ethhdr); /* remember message sizes must be rounded up */ - net_msg->msg_hdr.msgh_size = (((mach_msg_size_t) (sizeof(struct net_rcv_msg) - - NET_RCV_MAX + pack_size)) + 3) & ~3; + net_msg->msg_hdr.msgh_size = + (((mach_msg_size_t) (sizeof (struct net_rcv_msg) + - sizeof net_msg->sent + - NET_RCV_MAX + pack_size)) + 3) & ~3; /* Copy packet into message buffer. */ eh = (struct ether_header *) (net_msg->header); -- 2.0.0
