Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/net/pppox.c b/drivers/net/pppox.c
new file mode 100644
index 0000000..0c1e114
--- /dev/null
+++ b/drivers/net/pppox.c
@@ -0,0 +1,153 @@
+/** -*- linux-c -*- ***********************************************************
+ * Linux PPP over X/Ethernet (PPPoX/PPPoE) Sockets
+ *
+ * PPPoX --- Generic PPP encapsulation socket family
+ * PPPoE --- PPP over Ethernet (RFC 2516)
+ *
+ *
+ * Version: 0.5.2
+ *
+ * Author: Michal Ostrowski <mostrows@speakeasy.net>
+ *
+ * 051000 : Initialization cleanup
+ *
+ * License:
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/net.h>
+#include <linux/init.h>
+#include <linux/if_pppox.h>
+#include <linux/ppp_defs.h>
+#include <linux/if_ppp.h>
+#include <linux/ppp_channel.h>
+
+#include <net/sock.h>
+
+#include <asm/uaccess.h>
+
+static struct pppox_proto *pppox_protos[PX_MAX_PROTO + 1];
+
+int register_pppox_proto(int proto_num, struct pppox_proto *pp)
+{
+ if (proto_num < 0 || proto_num > PX_MAX_PROTO)
+ return -EINVAL;
+ if (pppox_protos[proto_num])
+ return -EALREADY;
+ pppox_protos[proto_num] = pp;
+ return 0;
+}
+
+void unregister_pppox_proto(int proto_num)
+{
+ if (proto_num >= 0 && proto_num <= PX_MAX_PROTO)
+ pppox_protos[proto_num] = NULL;
+}
+
+void pppox_unbind_sock(struct sock *sk)
+{
+ /* Clear connection to ppp device, if attached. */
+
+ if (sk->sk_state & (PPPOX_BOUND | PPPOX_ZOMBIE)) {
+ ppp_unregister_channel(&pppox_sk(sk)->chan);
+ sk->sk_state = PPPOX_DEAD;
+ }
+}
+
+EXPORT_SYMBOL(register_pppox_proto);
+EXPORT_SYMBOL(unregister_pppox_proto);
+EXPORT_SYMBOL(pppox_unbind_sock);
+
+static int pppox_ioctl(struct socket* sock, unsigned int cmd,
+ unsigned long arg)
+{
+ struct sock *sk = sock->sk;
+ struct pppox_sock *po = pppox_sk(sk);
+ int rc = 0;
+
+ lock_sock(sk);
+
+ switch (cmd) {
+ case PPPIOCGCHAN: {
+ int index;
+ rc = -ENOTCONN;
+ if (!(sk->sk_state & PPPOX_CONNECTED))
+ break;
+
+ rc = -EINVAL;
+ index = ppp_channel_index(&po->chan);
+ if (put_user(index , (int __user *) arg))
+ break;
+
+ rc = 0;
+ sk->sk_state |= PPPOX_BOUND;
+ break;
+ }
+ default:
+ if (pppox_protos[sk->sk_protocol]->ioctl)
+ rc = pppox_protos[sk->sk_protocol]->ioctl(sock, cmd,
+ arg);
+
+ break;
+ };
+
+ release_sock(sk);
+ return rc;
+}
+
+
+static int pppox_create(struct socket *sock, int protocol)
+{
+ int rc = -EPROTOTYPE;
+
+ if (protocol < 0 || protocol > PX_MAX_PROTO)
+ goto out;
+
+ rc = -EPROTONOSUPPORT;
+ if (!pppox_protos[protocol] ||
+ !try_module_get(pppox_protos[protocol]->owner))
+ goto out;
+
+ rc = pppox_protos[protocol]->create(sock);
+ if (!rc) {
+ /* We get to set the ioctl handler. */
+ /* For everything else, pppox is just a shell. */
+ sock->ops->ioctl = pppox_ioctl;
+ }
+ module_put(pppox_protos[protocol]->owner);
+out:
+ return rc;
+}
+
+static struct net_proto_family pppox_proto_family = {
+ .family = PF_PPPOX,
+ .create = pppox_create,
+ .owner = THIS_MODULE,
+};
+
+static int __init pppox_init(void)
+{
+ return sock_register(&pppox_proto_family);
+}
+
+static void __exit pppox_exit(void)
+{
+ sock_unregister(PF_PPPOX);
+}
+
+module_init(pppox_init);
+module_exit(pppox_exit);
+
+MODULE_AUTHOR("Michal Ostrowski <mostrows@speakeasy.net>");
+MODULE_DESCRIPTION("PPP over Ethernet driver (generic socket layer)");
+MODULE_LICENSE("GPL");