From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- net/netrom/nr_loopback.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 net/netrom/nr_loopback.c (limited to 'net/netrom/nr_loopback.c') diff --git a/net/netrom/nr_loopback.c b/net/netrom/nr_loopback.c new file mode 100644 index 00000000000..165b2abce11 --- /dev/null +++ b/net/netrom/nr_loopback.c @@ -0,0 +1,76 @@ +/* + * 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. + * + * Copyright Tomi Manninen OH2BNS (oh2bns@sral.fi) + */ +#include +#include +#include +#include +#include +#include +#include + +static void nr_loopback_timer(unsigned long); + +static struct sk_buff_head loopback_queue; +static struct timer_list loopback_timer = TIMER_INITIALIZER(nr_loopback_timer, 0, 0); + +void __init nr_loopback_init(void) +{ + skb_queue_head_init(&loopback_queue); +} + +static inline int nr_loopback_running(void) +{ + return timer_pending(&loopback_timer); +} + +int nr_loopback_queue(struct sk_buff *skb) +{ + struct sk_buff *skbn; + + if ((skbn = alloc_skb(skb->len, GFP_ATOMIC)) != NULL) { + memcpy(skb_put(skbn, skb->len), skb->data, skb->len); + skbn->h.raw = skbn->data; + + skb_queue_tail(&loopback_queue, skbn); + + if (!nr_loopback_running()) + mod_timer(&loopback_timer, jiffies + 10); + } + + kfree_skb(skb); + return 1; +} + +static void nr_loopback_timer(unsigned long param) +{ + struct sk_buff *skb; + ax25_address *nr_dest; + struct net_device *dev; + + if ((skb = skb_dequeue(&loopback_queue)) != NULL) { + nr_dest = (ax25_address *)(skb->data + 7); + + dev = nr_dev_get(nr_dest); + + if (dev == NULL || nr_rx_frame(skb, dev) == 0) + kfree_skb(skb); + + if (dev != NULL) + dev_put(dev); + + if (!skb_queue_empty(&loopback_queue) && !nr_loopback_running()) + mod_timer(&loopback_timer, jiffies + 10); + } +} + +void __exit nr_loopback_clear(void) +{ + del_timer_sync(&loopback_timer); + skb_queue_purge(&loopback_queue); +} -- cgit v1.2.3-70-g09d2