C++ (Cpp) toi_fill_skb_pool Beispiele

Beispiel #1

static int netlink_prepare(struct user_helper_data *uhd)
{
	uhd->next = uhd_list;
	uhd_list = uhd;

	uhd->sock_seq = 0x42c0ffee;
	uhd->nl = netlink_kernel_create(&init_net, uhd->netlink_id, 0,
			toi_user_rcv_skb, NULL, THIS_MODULE);
	if (!uhd->nl) {
		printk(KERN_INFO "Failed to allocate netlink socket for %s.\n",
				uhd->name);
		return -ENOMEM;
	}

	toi_fill_skb_pool(uhd);

	return 0;
}

Beispiel #2

Datei: tuxonice_netlink.c Projekt: Scorpio92/mediatek

static int netlink_prepare(struct user_helper_data *uhd)
{
	struct netlink_kernel_cfg cfg = {
		.groups = 0,
		.input = toi_user_rcv_skb,
	};

	uhd->next = uhd_list;
	uhd_list = uhd;

	uhd->sock_seq = 0x42c0ffee;
	uhd->nl = netlink_kernel_create(&init_net, uhd->netlink_id, &cfg);
	if (!uhd->nl) {
		printk(KERN_INFO "Failed to allocate netlink socket for %s.\n",
				uhd->name);
		return -ENOMEM;
	}

	toi_fill_skb_pool(uhd);

	return 0;
}

void toi_netlink_close(struct user_helper_data *uhd)
{
	struct task_struct *t;

	toi_read_lock_tasklist();
	t = find_task_by_pid_ns(uhd->pid, &init_pid_ns);
	if (t)
		t->flags &= ~PF_NOFREEZE;
	toi_read_unlock_tasklist();

	toi_send_netlink_message(uhd, NETLINK_MSG_CLEANUP, NULL, 0);
}
EXPORT_SYMBOL_GPL(toi_netlink_close);

int toi_netlink_setup(struct user_helper_data *uhd)
{
	/* In case userui didn't cleanup properly on us */
	toi_netlink_close_complete(uhd);

	if (netlink_prepare(uhd) < 0) {
		printk(KERN_INFO "Netlink prepare failed.\n");
		return 1;
	}

	if (toi_launch_userspace_program(uhd->program, uhd->netlink_id,
				UMH_WAIT_EXEC, uhd->debug) < 0) {
		printk(KERN_INFO "Launch userspace program failed.\n");
		toi_netlink_close_complete(uhd);
		return 1;
	}

	/* Wait 2 seconds for the userspace process to make contact */
	wait_for_completion_timeout(&uhd->wait_for_process, 2*HZ);

	if (uhd->pid == -1) {
		printk(KERN_INFO "%s: Failed to contact userspace process.\n",
				uhd->name);
		toi_netlink_close_complete(uhd);
		return 1;
	}

	return 0;
}