diff options
Diffstat (limited to 'drivers/net/wan/hdlc_raw.c')
| -rw-r--r-- | drivers/net/wan/hdlc_raw.c | 69 |
1 files changed, 47 insertions, 22 deletions
diff --git a/drivers/net/wan/hdlc_raw.c b/drivers/net/wan/hdlc_raw.c index 9456d31cb1c..5dc153e8a29 100644 --- a/drivers/net/wan/hdlc_raw.c +++ b/drivers/net/wan/hdlc_raw.c @@ -2,36 +2,41 @@ * Generic HDLC support routines for Linux * HDLC support * - * Copyright (C) 1999 - 2003 Krzysztof Halasa <khc@pm.waw.pl> + * Copyright (C) 1999 - 2006 Krzysztof Halasa <khc@pm.waw.pl> * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License * as published by the Free Software Foundation. */ -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/poll.h> #include <linux/errno.h> +#include <linux/hdlc.h> #include <linux/if_arp.h> +#include <linux/inetdevice.h> #include <linux/init.h> -#include <linux/skbuff.h> +#include <linux/kernel.h> +#include <linux/module.h> #include <linux/pkt_sched.h> -#include <linux/inetdevice.h> -#include <linux/lapb.h> +#include <linux/poll.h> #include <linux/rtnetlink.h> -#include <linux/hdlc.h> +#include <linux/skbuff.h> + +static int raw_ioctl(struct net_device *dev, struct ifreq *ifr); static __be16 raw_type_trans(struct sk_buff *skb, struct net_device *dev) { - return __constant_htons(ETH_P_IP); + return cpu_to_be16(ETH_P_IP); } +static struct hdlc_proto proto = { + .type_trans = raw_type_trans, + .ioctl = raw_ioctl, + .module = THIS_MODULE, +}; -int hdlc_raw_ioctl(struct net_device *dev, struct ifreq *ifr) +static int raw_ioctl(struct net_device *dev, struct ifreq *ifr) { raw_hdlc_proto __user *raw_s = ifr->ifr_settings.ifs_ifsu.raw_hdlc; const size_t size = sizeof(raw_hdlc_proto); @@ -41,12 +46,14 @@ int hdlc_raw_ioctl(struct net_device *dev, struct ifreq *ifr) switch (ifr->ifr_settings.type) { case IF_GET_PROTO: + if (dev_to_hdlc(dev)->proto != &proto) + return -EINVAL; ifr->ifr_settings.type = IF_PROTO_HDLC; if (ifr->ifr_settings.size < size) { ifr->ifr_settings.size = size; /* data size wanted */ return -ENOBUFS; } - if (copy_to_user(raw_s, &hdlc->state.raw_hdlc.settings, size)) + if (copy_to_user(raw_s, hdlc->state, size)) return -EFAULT; return 0; @@ -71,19 +78,37 @@ int hdlc_raw_ioctl(struct net_device *dev, struct ifreq *ifr) if (result) return result; - hdlc_proto_detach(hdlc); - memcpy(&hdlc->state.raw_hdlc.settings, &new_settings, size); - memset(&hdlc->proto, 0, sizeof(hdlc->proto)); - - hdlc->proto.type_trans = raw_type_trans; - hdlc->proto.id = IF_PROTO_HDLC; - dev->hard_start_xmit = hdlc->xmit; - dev->hard_header = NULL; + result = attach_hdlc_protocol(dev, &proto, + sizeof(raw_hdlc_proto)); + if (result) + return result; + memcpy(hdlc->state, &new_settings, size); dev->type = ARPHRD_RAWHDLC; - dev->flags = IFF_POINTOPOINT | IFF_NOARP; - dev->addr_len = 0; + netif_dormant_off(dev); return 0; } return -EINVAL; } + + +static int __init mod_init(void) +{ + register_hdlc_protocol(&proto); + return 0; +} + + + +static void __exit mod_exit(void) +{ + unregister_hdlc_protocol(&proto); +} + + +module_init(mod_init); +module_exit(mod_exit); + +MODULE_AUTHOR("Krzysztof Halasa <khc@pm.waw.pl>"); +MODULE_DESCRIPTION("Raw HDLC protocol support for generic HDLC"); +MODULE_LICENSE("GPL v2"); |