C++ (Cpp) RCV_SKB_FAIL Examples

Example #1

File: dn_rtmsg.c Project: Dronevery/JetsonTK1-kernel

static inline void dnrmg_receive_user_skb(struct sk_buff *skb)
{
    struct nlmsghdr *nlh = (struct nlmsghdr *)skb->data;

    if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
        return;

    if (!cap_raised(NETLINK_CB(skb).eff_cap, CAP_NET_ADMIN))
        RCV_SKB_FAIL(-EPERM);

    /* Eventually we might send routing messages too */

    RCV_SKB_FAIL(-EINVAL);
}

Example #2

File: dn_rtmsg.c Project: rldleblanc/linux

static inline void dnrmg_receive_user_skb(struct sk_buff *skb)
{
	struct nlmsghdr *nlh = nlmsg_hdr(skb);

	if (nlh->nlmsg_len < sizeof(*nlh) || skb->len < nlh->nlmsg_len)
		return;

	if (!netlink_capable(skb, CAP_NET_ADMIN))
		RCV_SKB_FAIL(-EPERM);

	/* Eventually we might send routing messages too */

	RCV_SKB_FAIL(-EINVAL);
}

Example #3

File: ip_queue_aodv.c Project: joninvski/aodvuu-ts7500

static __inline__ void netlink_receive_user_skb(struct sk_buff *skb)
{
	int status, type;
	struct nlmsghdr *nlh;

	if (skb->len < sizeof(struct nlmsghdr))
		return;

	nlh = (struct nlmsghdr *)skb->data;
	if (nlh->nlmsg_len < sizeof(struct nlmsghdr)
	    || skb->len < nlh->nlmsg_len)
	    	return;

	if(nlh->nlmsg_pid <= 0
	    || !(nlh->nlmsg_flags & NLM_F_REQUEST)
	    || nlh->nlmsg_flags & NLM_F_MULTI)
		RCV_SKB_FAIL(-EINVAL);
	if (nlh->nlmsg_flags & MSG_TRUNC)
		RCV_SKB_FAIL(-ECOMM);
	type = nlh->nlmsg_type;
	if (type < NLMSG_NOOP || type >= IPQM_MAX)
		RCV_SKB_FAIL(-EINVAL);
	if (type <= IPQM_BASE)
		return;
	if(!cap_raised(NETLINK_CB(skb).eff_cap, CAP_NET_ADMIN))
		RCV_SKB_FAIL(-EPERM);
	if (nlq->peer.pid && !nlq->peer.died
	    && (nlq->peer.pid != nlh->nlmsg_pid)) {
	    	printk(KERN_WARNING "ip_queue: peer pid changed from %d to "
	    	      "%d, flushing queue\n", nlq->peer.pid, nlh->nlmsg_pid);
		ipq_flush(nlq);
	}	
	nlq->peer.pid = nlh->nlmsg_pid;
	nlq->peer.died = 0;
	status = ipq_receive_peer(nlq, NLMSG_DATA(nlh),
	                          type, skb->len - NLMSG_LENGTH(0));
	if (status < 0)
		RCV_SKB_FAIL(status);
	if (nlh->nlmsg_flags & NLM_F_ACK)
		netlink_ack(skb, nlh, 0);
        return;
}