diff options
Diffstat (limited to 'net/lapb/lapb_timer.c')
| -rw-r--r-- | net/lapb/lapb_timer.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/net/lapb/lapb_timer.c b/net/lapb/lapb_timer.c deleted file mode 100644 index 5d4ae01951b5..000000000000 --- a/net/lapb/lapb_timer.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * LAPB release 002 - * - * This code REQUIRES 2.1.15 or higher/ NET3.038 - * - * This module: - * This module 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. - * - * History - * LAPB 001 Jonathan Naylor Started Coding - * LAPB 002 Jonathan Naylor New timer architecture. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/errno.h> -#include <linux/types.h> -#include <linux/socket.h> -#include <linux/in.h> -#include <linux/kernel.h> -#include <linux/jiffies.h> -#include <linux/timer.h> -#include <linux/string.h> -#include <linux/sockios.h> -#include <linux/net.h> -#include <linux/inet.h> -#include <linux/skbuff.h> -#include <net/sock.h> -#include <linux/uaccess.h> -#include <linux/fcntl.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <net/lapb.h> - -static void lapb_t1timer_expiry(struct timer_list *); -static void lapb_t2timer_expiry(struct timer_list *); - -void lapb_start_t1timer(struct lapb_cb *lapb) -{ - del_timer(&lapb->t1timer); - - lapb->t1timer.function = lapb_t1timer_expiry; - lapb->t1timer.expires = jiffies + lapb->t1; - - add_timer(&lapb->t1timer); -} - -void lapb_start_t2timer(struct lapb_cb *lapb) -{ - del_timer(&lapb->t2timer); - - lapb->t2timer.function = lapb_t2timer_expiry; - lapb->t2timer.expires = jiffies + lapb->t2; - - add_timer(&lapb->t2timer); -} - -void lapb_stop_t1timer(struct lapb_cb *lapb) -{ - del_timer(&lapb->t1timer); -} - -void lapb_stop_t2timer(struct lapb_cb *lapb) -{ - del_timer(&lapb->t2timer); -} - -int lapb_t1timer_running(struct lapb_cb *lapb) -{ - return timer_pending(&lapb->t1timer); -} - -static void lapb_t2timer_expiry(struct timer_list *t) -{ - struct lapb_cb *lapb = from_timer(lapb, t, t2timer); - - if (lapb->condition & LAPB_ACK_PENDING_CONDITION) { - lapb->condition &= ~LAPB_ACK_PENDING_CONDITION; - lapb_timeout_response(lapb); - } -} - -static void lapb_t1timer_expiry(struct timer_list *t) -{ - struct lapb_cb *lapb = from_timer(lapb, t, t1timer); - - switch (lapb->state) { - - /* - * If we are a DCE, keep going DM .. DM .. DM - */ - case LAPB_STATE_0: - if (lapb->mode & LAPB_DCE) - lapb_send_control(lapb, LAPB_DM, LAPB_POLLOFF, LAPB_RESPONSE); - break; - - /* - * Awaiting connection state, send SABM(E), up to N2 times. - */ - case LAPB_STATE_1: - if (lapb->n2count == lapb->n2) { - lapb_clear_queues(lapb); - lapb->state = LAPB_STATE_0; - lapb_disconnect_indication(lapb, LAPB_TIMEDOUT); - lapb_dbg(0, "(%p) S1 -> S0\n", lapb->dev); - return; - } else { - lapb->n2count++; - if (lapb->mode & LAPB_EXTENDED) { - lapb_dbg(1, "(%p) S1 TX SABME(1)\n", - lapb->dev); - lapb_send_control(lapb, LAPB_SABME, LAPB_POLLON, LAPB_COMMAND); - } else { - lapb_dbg(1, "(%p) S1 TX SABM(1)\n", - lapb->dev); - lapb_send_control(lapb, LAPB_SABM, LAPB_POLLON, LAPB_COMMAND); - } - } - break; - - /* - * Awaiting disconnection state, send DISC, up to N2 times. - */ - case LAPB_STATE_2: - if (lapb->n2count == lapb->n2) { - lapb_clear_queues(lapb); - lapb->state = LAPB_STATE_0; - lapb_disconnect_confirmation(lapb, LAPB_TIMEDOUT); - lapb_dbg(0, "(%p) S2 -> S0\n", lapb->dev); - return; - } else { - lapb->n2count++; - lapb_dbg(1, "(%p) S2 TX DISC(1)\n", lapb->dev); - lapb_send_control(lapb, LAPB_DISC, LAPB_POLLON, LAPB_COMMAND); - } - break; - - /* - * Data transfer state, restransmit I frames, up to N2 times. - */ - case LAPB_STATE_3: - if (lapb->n2count == lapb->n2) { - lapb_clear_queues(lapb); - lapb->state = LAPB_STATE_0; - lapb_stop_t2timer(lapb); - lapb_disconnect_indication(lapb, LAPB_TIMEDOUT); - lapb_dbg(0, "(%p) S3 -> S0\n", lapb->dev); - return; - } else { - lapb->n2count++; - lapb_requeue_frames(lapb); - lapb_kick(lapb); - } - break; - - /* - * Frame reject state, restransmit FRMR frames, up to N2 times. - */ - case LAPB_STATE_4: - if (lapb->n2count == lapb->n2) { - lapb_clear_queues(lapb); - lapb->state = LAPB_STATE_0; - lapb_disconnect_indication(lapb, LAPB_TIMEDOUT); - lapb_dbg(0, "(%p) S4 -> S0\n", lapb->dev); - return; - } else { - lapb->n2count++; - lapb_transmit_frmr(lapb); - } - break; - } - - lapb_start_t1timer(lapb); -} |