/*
* State machine for state 4, Frame Reject State.
* The handling of the timer(s) is in file lapb_timer.c.
*/
static void lapb_state4_machine(struct lapb_cb *lapb, struct sk_buff *skb,
struct lapb_frame *frame)
{
switch (frame->type) {
case LAPB_SABM:
lapb_dbg(1, "(%p) S4 RX SABM(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
lapb_dbg(1, "(%p) S4 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
} else {
lapb_dbg(1, "(%p) S4 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S4 -> S3\n", lapb->dev);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_3;
lapb->condition = 0x00;
lapb->n2count = 0;
lapb->vs = 0;
lapb->vr = 0;
lapb->va = 0;
lapb_connect_indication(lapb, LAPB_OK);
}
break;
case LAPB_SABME:
lapb_dbg(1, "(%p) S4 RX SABME(%d)\n", lapb->dev, frame->pf);
if (lapb->mode & LAPB_EXTENDED) {
lapb_dbg(1, "(%p) S4 TX UA(%d)\n",
lapb->dev, frame->pf);
lapb_dbg(0, "(%p) S4 -> S3\n", lapb->dev);
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_3;
lapb->condition = 0x00;
lapb->n2count = 0;
lapb->vs = 0;
lapb->vr = 0;
lapb->va = 0;
lapb_connect_indication(lapb, LAPB_OK);
} else {
lapb_dbg(1, "(%p) S4 TX DM(%d)\n",
lapb->dev, frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
}
break;
}
kfree_skb(skb);
}
/*
* State machine for state 0, Disconnected State.
* The handling of the timer(s) is in file lapb_timer.c.
*/
static void lapb_state0_machine(struct lapb_cb *lapb, struct sk_buff *skb,
struct lapb_frame *frame)
{
switch (frame->type) {
case LAPB_SABM:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 RX SABM(%d)\n",
lapb->dev, frame->pf);
#endif
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S0 -> S3\n",
lapb->dev);
#endif
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_3;
lapb->condition = 0x00;
lapb->n2count = 0;
lapb->vs = 0;
lapb->vr = 0;
lapb->va = 0;
lapb_connect_indication(lapb, LAPB_OK);
}
break;
case LAPB_SABME:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 RX SABME(%d)\n",
lapb->dev, frame->pf);
#endif
if (lapb->mode & LAPB_EXTENDED) {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
#if LAPB_DEBUG > 0
printk(KERN_DEBUG "lapb: (%p) S0 -> S3\n",
lapb->dev);
#endif
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
lapb_stop_t1timer(lapb);
lapb_stop_t2timer(lapb);
lapb->state = LAPB_STATE_3;
lapb->condition = 0x00;
lapb->n2count = 0;
lapb->vs = 0;
lapb->vr = 0;
lapb->va = 0;
lapb_connect_indication(lapb, LAPB_OK);
} else {
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 TX DM(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_send_control(lapb, LAPB_DM, frame->pf,
LAPB_RESPONSE);
}
break;
case LAPB_DISC:
#if LAPB_DEBUG > 1
printk(KERN_DEBUG "lapb: (%p) S0 RX DISC(%d)\n",
lapb->dev, frame->pf);
printk(KERN_DEBUG "lapb: (%p) S0 TX UA(%d)\n",
lapb->dev, frame->pf);
#endif
lapb_send_control(lapb, LAPB_UA, frame->pf,
LAPB_RESPONSE);
break;
default:
break;
}
kfree_skb(skb);
}
/*
* State machine for state 0, Disconnected State.
* The handling of the timer(s) is in file lapb_timer.c.
*/
void lapb_state0_machine(struct lapb_cs * lapb, struct lapb_frame * frame) {
struct lapb_cs_internal * lapb_int = lapb_get_internal(lapb);
switch (frame->type) {
case LAPB_SABM:
lapb->callbacks->debug(2, "[LAPB] S0 RX SABM(%d)", frame->pf);
if (lapb_is_extended(lapb)) {
lapb->callbacks->debug(2, "[LAPB] S0 TX DM(%d)", frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf, LAPB_RESPONSE);
} else {
lapb_stop_t201timer(lapb);
lapb->callbacks->debug(2, "[LAPB] S0 TX UA(%d)", frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf, LAPB_RESPONSE);
lapb_int->state = LAPB_STATE_3;
lapb_int->condition = 0x00;
lapb_int->vs = 0;
lapb_int->vr = 0;
//lapb_int->last_vr = 0;
lapb_int->va = 0;
lapb->callbacks->debug(1, "[LAPB] S0 -> S3");
lapb_connect_indication(lapb, LAPB_OK);
};
break;
case LAPB_SABME:
lapb->callbacks->debug(2, "[LAPB] S0 RX SABME(%d)", frame->pf);
if (lapb_is_extended(lapb)) {
lapb_stop_t201timer(lapb);
lapb->callbacks->debug(2, "[LAPB] S0 TX UA(%d)", frame->pf);
lapb_send_control(lapb, LAPB_UA, frame->pf, LAPB_RESPONSE);
lapb_int->state = LAPB_STATE_3;
lapb_int->condition = 0x00;
lapb_int->vs = 0;
lapb_int->vr = 0;
//lapb_int->last_vr = 0;
lapb_int->va = 0;
lapb->callbacks->debug(1, "[LAPB] S0 -> S3");
lapb_connect_indication(lapb, LAPB_OK);
} else {
lapb->callbacks->debug(2, "[LAPB] S0 TX DM(%d)", frame->pf);
lapb_send_control(lapb, LAPB_DM, frame->pf, LAPB_RESPONSE);
};
break;
case LAPB_DM:
if (!lapb->auto_connecting) break;
lapb->callbacks->debug(2, "[LAPB] S0 RX DM(%d)", frame->pf);
lapb_int->condition = 0x00;
if (lapb_is_extended(lapb)) {
lapb->callbacks->debug(2, "[LAPB] S0 TX SABME(1)");
lapb_send_control(lapb, LAPB_SABME, LAPB_POLLON, LAPB_COMMAND);
} else {
lapb->callbacks->debug(2, "[LAPB] S0 TX SABM(1)");
lapb_send_control(lapb, LAPB_SABM, LAPB_POLLON, LAPB_COMMAND);
};
lapb_int->state = LAPB_STATE_1;
lapb->callbacks->debug(1, "[LAPB] S0 -> S1");
break;
// case LAPB_DISC:
// lapb_debug(lapb, 1, "[LAPB] S0 RX DISC(%d)", frame->pf);
// lapb_debug(lapb, 1, "[LAPB] S0 TX UA(%d)", frame->pf);
// lapb_send_control(lapb, LAPB_UA, frame->pf, LAPB_RESPONSE);
// break;
default:
break;
};
}
