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authortzafrir <tzafrir@5390a7c7-147a-4af0-8ec9-7488f05a26cb>2008-02-04 23:00:48 +0000
committertzafrir <tzafrir@5390a7c7-147a-4af0-8ec9-7488f05a26cb>2008-02-04 23:00:48 +0000
commit7e068801fbf82413ac0a5e63e586c268bd457434 (patch)
tree9b61e9a4e07167e0b7d347e4336245724befa29c /datamods/hdlc_cisco.c
parent29daeebad888269fa0ee2ca7e54e238c8498ca2d (diff)
Move kernel stuff to under kernel/
(merged branch /zaptel/team/tzafrir/move ) Closes issue #7117. git-svn-id: http://svn.digium.com/svn/zaptel/branches/1.4@3793 5390a7c7-147a-4af0-8ec9-7488f05a26cb
Diffstat (limited to 'datamods/hdlc_cisco.c')
-rw-r--r--datamods/hdlc_cisco.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/datamods/hdlc_cisco.c b/datamods/hdlc_cisco.c
deleted file mode 100644
index 1fd0466..0000000
--- a/datamods/hdlc_cisco.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * Generic HDLC support routines for Linux
- * Cisco HDLC support
- *
- * Copyright (C) 2000 - 2003 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/if_arp.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <linux/pkt_sched.h>
-#include <linux/inetdevice.h>
-#include <linux/lapb.h>
-#include <linux/rtnetlink.h>
-#include <linux/hdlc.h>
-
-#undef DEBUG_HARD_HEADER
-
-#define CISCO_MULTICAST 0x8F /* Cisco multicast address */
-#define CISCO_UNICAST 0x0F /* Cisco unicast address */
-#define CISCO_KEEPALIVE 0x8035 /* Cisco keepalive protocol */
-#define CISCO_SYS_INFO 0x2000 /* Cisco interface/system info */
-#define CISCO_ADDR_REQ 0 /* Cisco address request */
-#define CISCO_ADDR_REPLY 1 /* Cisco address reply */
-#define CISCO_KEEPALIVE_REQ 2 /* Cisco keepalive request */
-
-
-static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev,
- u16 type, void *daddr, void *saddr,
- unsigned int len)
-{
- hdlc_header *data;
-#ifdef DEBUG_HARD_HEADER
- printk(KERN_DEBUG "%s: cisco_hard_header called\n", dev->name);
-#endif
-
- skb_push(skb, sizeof(hdlc_header));
- data = (hdlc_header*)skb->data;
- if (type == CISCO_KEEPALIVE)
- data->address = CISCO_MULTICAST;
- else
- data->address = CISCO_UNICAST;
- data->control = 0;
- data->protocol = htons(type);
-
- return sizeof(hdlc_header);
-}
-
-
-
-static void cisco_keepalive_send(struct net_device *dev, u32 type,
- u32 par1, u32 par2)
-{
- struct sk_buff *skb;
- cisco_packet *data;
-
- skb = dev_alloc_skb(sizeof(hdlc_header) + sizeof(cisco_packet));
- if (!skb) {
- printk(KERN_WARNING
- "%s: Memory squeeze on cisco_keepalive_send()\n",
- dev->name);
- return;
- }
- skb_reserve(skb, 4);
- cisco_hard_header(skb, dev, CISCO_KEEPALIVE, NULL, NULL, 0);
- data = (cisco_packet*)(skb->data + 4);
-
- data->type = htonl(type);
- data->par1 = htonl(par1);
- data->par2 = htonl(par2);
- data->rel = 0xFFFF;
- /* we will need do_div here if 1000 % HZ != 0 */
- data->time = htonl((jiffies - INITIAL_JIFFIES) * (1000 / HZ));
-
- skb_put(skb, sizeof(cisco_packet));
- skb->priority = TC_PRIO_CONTROL;
- skb->dev = dev;
- skb->nh.raw = skb->data;
-
- dev_queue_xmit(skb);
-}
-
-
-
-static __be16 cisco_type_trans(struct sk_buff *skb, struct net_device *dev)
-{
- hdlc_header *data = (hdlc_header*)skb->data;
-
- if (skb->len < sizeof(hdlc_header))
- return __constant_htons(ETH_P_HDLC);
-
- if (data->address != CISCO_MULTICAST &&
- data->address != CISCO_UNICAST)
- return __constant_htons(ETH_P_HDLC);
-
- switch(data->protocol) {
- case __constant_htons(ETH_P_IP):
- case __constant_htons(ETH_P_IPX):
- case __constant_htons(ETH_P_IPV6):
- skb_pull(skb, sizeof(hdlc_header));
- return data->protocol;
- default:
- return __constant_htons(ETH_P_HDLC);
- }
-}
-
-
-static int cisco_rx(struct sk_buff *skb)
-{
- struct net_device *dev = skb->dev;
- hdlc_device *hdlc = dev_to_hdlc(dev);
- hdlc_header *data = (hdlc_header*)skb->data;
- cisco_packet *cisco_data;
- struct in_device *in_dev;
- u32 addr, mask;
-
- if (skb->len < sizeof(hdlc_header))
- goto rx_error;
-
- if (data->address != CISCO_MULTICAST &&
- data->address != CISCO_UNICAST)
- goto rx_error;
-
- switch(ntohs(data->protocol)) {
- case CISCO_SYS_INFO:
- /* Packet is not needed, drop it. */
- dev_kfree_skb_any(skb);
- return NET_RX_SUCCESS;
-
- case CISCO_KEEPALIVE:
- if (skb->len != sizeof(hdlc_header) + CISCO_PACKET_LEN &&
- skb->len != sizeof(hdlc_header) + CISCO_BIG_PACKET_LEN) {
- printk(KERN_INFO "%s: Invalid length of Cisco "
- "control packet (%d bytes)\n",
- dev->name, skb->len);
- goto rx_error;
- }
-
- cisco_data = (cisco_packet*)(skb->data + sizeof(hdlc_header));
-
- switch(ntohl (cisco_data->type)) {
- case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */
- in_dev = dev->ip_ptr;
- addr = 0;
- mask = ~0; /* is the mask correct? */
-
- if (in_dev != NULL) {
- struct in_ifaddr **ifap = &in_dev->ifa_list;
-
- while (*ifap != NULL) {
- if (strcmp(dev->name,
- (*ifap)->ifa_label) == 0) {
- addr = (*ifap)->ifa_local;
- mask = (*ifap)->ifa_mask;
- break;
- }
- ifap = &(*ifap)->ifa_next;
- }
-
- cisco_keepalive_send(dev, CISCO_ADDR_REPLY,
- addr, mask);
- }
- dev_kfree_skb_any(skb);
- return NET_RX_SUCCESS;
-
- case CISCO_ADDR_REPLY:
- printk(KERN_INFO "%s: Unexpected Cisco IP address "
- "reply\n", dev->name);
- goto rx_error;
-
- case CISCO_KEEPALIVE_REQ:
- hdlc->state.cisco.rxseq = ntohl(cisco_data->par1);
- if (hdlc->state.cisco.request_sent &&
- ntohl(cisco_data->par2)==hdlc->state.cisco.txseq) {
- hdlc->state.cisco.last_poll = jiffies;
- if (!hdlc->state.cisco.up) {
- u32 sec, min, hrs, days;
- sec = ntohl(cisco_data->time) / 1000;
- min = sec / 60; sec -= min * 60;
- hrs = min / 60; min -= hrs * 60;
- days = hrs / 24; hrs -= days * 24;
- printk(KERN_INFO "%s: Link up (peer "
- "uptime %ud%uh%um%us)\n",
- dev->name, days, hrs,
- min, sec);
-#if 0
- netif_carrier_on(dev);
-#endif
- hdlc->state.cisco.up = 1;
- }
- }
-
- dev_kfree_skb_any(skb);
- return NET_RX_SUCCESS;
- } /* switch(keepalive type) */
- } /* switch(protocol) */
-
- printk(KERN_INFO "%s: Unsupported protocol %x\n", dev->name,
- data->protocol);
- dev_kfree_skb_any(skb);
- return NET_RX_DROP;
-
- rx_error:
- hdlc->stats.rx_errors++; /* Mark error */
- dev_kfree_skb_any(skb);
- return NET_RX_DROP;
-}
-
-
-
-static void cisco_timer(unsigned long arg)
-{
- struct net_device *dev = (struct net_device *)arg;
- hdlc_device *hdlc = dev_to_hdlc(dev);
-
- if (hdlc->state.cisco.up &&
- time_after(jiffies, hdlc->state.cisco.last_poll +
- hdlc->state.cisco.settings.timeout * HZ)) {
- hdlc->state.cisco.up = 0;
- printk(KERN_INFO "%s: Link down\n", dev->name);
-#if 0
- netif_carrier_off(dev);
-#endif
- }
-
- cisco_keepalive_send(dev, CISCO_KEEPALIVE_REQ,
- ++hdlc->state.cisco.txseq,
- hdlc->state.cisco.rxseq);
- hdlc->state.cisco.request_sent = 1;
- hdlc->state.cisco.timer.expires = jiffies +
- hdlc->state.cisco.settings.interval * HZ;
- hdlc->state.cisco.timer.function = cisco_timer;
- hdlc->state.cisco.timer.data = arg;
- add_timer(&hdlc->state.cisco.timer);
-}
-
-
-
-static void cisco_start(struct net_device *dev)
-{
- hdlc_device *hdlc = dev_to_hdlc(dev);
- hdlc->state.cisco.up = 0;
- hdlc->state.cisco.request_sent = 0;
- hdlc->state.cisco.txseq = hdlc->state.cisco.rxseq = 0;
-
- init_timer(&hdlc->state.cisco.timer);
- hdlc->state.cisco.timer.expires = jiffies + HZ; /*First poll after 1s*/
- hdlc->state.cisco.timer.function = cisco_timer;
- hdlc->state.cisco.timer.data = (unsigned long)dev;
- add_timer(&hdlc->state.cisco.timer);
-}
-
-
-
-static void cisco_stop(struct net_device *dev)
-{
- hdlc_device *hdlc = dev_to_hdlc(dev);
- del_timer_sync(&hdlc->state.cisco.timer);
-#if 0
- if (netif_carrier_ok(dev))
- netif_carrier_off(dev);
-#endif
- hdlc->state.cisco.up = 0;
- hdlc->state.cisco.request_sent = 0;
-}
-
-
-
-int hdlc_cisco_ioctl(struct net_device *dev, struct ifreq *ifr)
-{
- cisco_proto __user *cisco_s = ifr->ifr_settings.ifs_ifsu.cisco;
- const size_t size = sizeof(cisco_proto);
- cisco_proto new_settings;
- hdlc_device *hdlc = dev_to_hdlc(dev);
- int result;
-
- switch (ifr->ifr_settings.type) {
- case IF_GET_PROTO:
- ifr->ifr_settings.type = IF_PROTO_CISCO;
- if (ifr->ifr_settings.size < size) {
- ifr->ifr_settings.size = size; /* data size wanted */
- return -ENOBUFS;
- }
- if (copy_to_user(cisco_s, &hdlc->state.cisco.settings, size))
- return -EFAULT;
- return 0;
-
- case IF_PROTO_CISCO:
- if(!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if(dev->flags & IFF_UP)
- return -EBUSY;
-
- if (copy_from_user(&new_settings, cisco_s, size))
- return -EFAULT;
-
- if (new_settings.interval < 1 ||
- new_settings.timeout < 2)
- return -EINVAL;
-
- result=hdlc->attach(dev, ENCODING_NRZ,PARITY_CRC16_PR1_CCITT);
-
- if (result)
- return result;
-
- hdlc_proto_detach(hdlc);
- memcpy(&hdlc->state.cisco.settings, &new_settings, size);
- memset(&hdlc->proto, 0, sizeof(hdlc->proto));
-
- hdlc->proto.start = cisco_start;
- hdlc->proto.stop = cisco_stop;
- hdlc->proto.netif_rx = cisco_rx;
- hdlc->proto.type_trans = cisco_type_trans;
- hdlc->proto.id = IF_PROTO_CISCO;
- dev->hard_start_xmit = hdlc->xmit;
- dev->hard_header = cisco_hard_header;
- dev->hard_header_cache = NULL;
- dev->type = ARPHRD_CISCO;
- dev->flags = IFF_POINTOPOINT | IFF_NOARP;
- dev->addr_len = 0;
- return 0;
- }
-
- return -EINVAL;
-}