net/qrtr/tun.c

Source file repositories/reference/linux-study-clean/net/qrtr/tun.c

File Facts

System
Linux kernel
Corpus path
net/qrtr/tun.c
Extension
.c
Size
3452 bytes
Lines
177
Domain
Networking Core
Bucket
Sockets, Protocols, Packet Path, And Network Policy
Inferred role
Networking Core: operation-table or driver-model contract
Status
pattern implementation candidate

Why This File Exists

Networking stack implementation surface: socket APIs, protocol dispatch, packet flow, routing, filtering, and network namespaces.

Dependency Surface

Detected Declarations

Annotated Snippet

static const struct file_operations qrtr_tun_ops = {
	.owner = THIS_MODULE,
	.open = qrtr_tun_open,
	.poll = qrtr_tun_poll,
	.read_iter = qrtr_tun_read_iter,
	.write_iter = qrtr_tun_write_iter,
	.release = qrtr_tun_release,
};

static struct miscdevice qrtr_tun_miscdev = {
	MISC_DYNAMIC_MINOR,
	"qrtr-tun",
	&qrtr_tun_ops,
};

static int __init qrtr_tun_init(void)
{
	int ret;

	ret = misc_register(&qrtr_tun_miscdev);
	if (ret)
		pr_err("failed to register Qualcomm IPC Router tun device\n");

	return ret;
}

static void __exit qrtr_tun_exit(void)
{
	misc_deregister(&qrtr_tun_miscdev);
}

module_init(qrtr_tun_init);
module_exit(qrtr_tun_exit);

MODULE_DESCRIPTION("Qualcomm IPC Router TUN device");
MODULE_LICENSE("GPL v2");

Annotation

Implementation Notes