Release 4.15 net/ax25/ax25_std_timer.c
/*
* 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 (C) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk)
* Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
* Copyright (C) Joerg Reuter DL1BKE (jreuter@yaina.de)
* Copyright (C) Frederic Rible F1OAT (frible@teaser.fr)
*/
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <net/ax25.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <net/tcp_states.h>
#include <linux/uaccess.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
void ax25_std_heartbeat_expiry(ax25_cb *ax25)
{
struct sock *sk = ax25->sk;
if (sk)
bh_lock_sock(sk);
switch (ax25->state) {
case AX25_STATE_0:
case AX25_STATE_2:
/* Magic here: If we listen() and a new link dies before it
is accepted() it isn't 'dead' so doesn't get removed. */
if (!sk || sock_flag(sk, SOCK_DESTROY) ||
(sk->sk_state == TCP_LISTEN &&
sock_flag(sk, SOCK_DEAD))) {
if (sk) {
sock_hold(sk);
ax25_destroy_socket(ax25);
bh_unlock_sock(sk);
/* Ungrab socket and destroy it */
sock_put(sk);
} else
ax25_destroy_socket(ax25);
return;
}
break;
case AX25_STATE_3:
case AX25_STATE_4:
/*
* Check the state of the receive buffer.
*/
if (sk != NULL) {
if (atomic_read(&sk->sk_rmem_alloc) <
(sk->sk_rcvbuf >> 1) &&
(ax25->condition & AX25_COND_OWN_RX_BUSY)) {
ax25->condition &= ~AX25_COND_OWN_RX_BUSY;
ax25->condition &= ~AX25_COND_ACK_PENDING;
ax25_send_control(ax25, AX25_RR, AX25_POLLOFF, AX25_RESPONSE);
break;
}
}
}
if (sk)
bh_unlock_sock(sk);
ax25_start_heartbeat(ax25);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 106 | 56.08% | 3 | 27.27% |
| Jeroen Vreeken | 54 | 28.57% | 1 | 9.09% |
| David S. Miller | 9 | 4.76% | 1 | 9.09% |
| Arnaldo Carvalho de Melo | 9 | 4.76% | 2 | 18.18% |
| Basil Gunn | 4 | 2.12% | 1 | 9.09% |
| James Morris | 4 | 2.12% | 1 | 9.09% |
| Eric Dumazet | 2 | 1.06% | 1 | 9.09% |
| Ralf Bächle | 1 | 0.53% | 1 | 9.09% |
| Total | 189 | 100.00% | 11 | 100.00% |
void ax25_std_t2timer_expiry(ax25_cb *ax25)
{
if (ax25->condition & AX25_COND_ACK_PENDING) {
ax25->condition &= ~AX25_COND_ACK_PENDING;
ax25_std_timeout_response(ax25);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 31 | 100.00% | 2 | 100.00% |
| Total | 31 | 100.00% | 2 | 100.00% |
void ax25_std_t3timer_expiry(ax25_cb *ax25)
{
ax25->n2count = 0;
ax25_std_transmit_enquiry(ax25);
ax25->state = AX25_STATE_4;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 26 | 100.00% | 2 | 100.00% |
| Total | 26 | 100.00% | 2 | 100.00% |
void ax25_std_idletimer_expiry(ax25_cb *ax25)
{
ax25_clear_queues(ax25);
ax25->n2count = 0;
ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
ax25->state = AX25_STATE_2;
ax25_calculate_t1(ax25);
ax25_start_t1timer(ax25);
ax25_stop_t2timer(ax25);
ax25_stop_t3timer(ax25);
if (ax25->sk != NULL) {
bh_lock_sock(ax25->sk);
ax25->sk->sk_state = TCP_CLOSE;
ax25->sk->sk_err = 0;
ax25->sk->sk_shutdown |= SEND_SHUTDOWN;
if (!sock_flag(ax25->sk, SOCK_DEAD)) {
ax25->sk->sk_state_change(ax25->sk);
sock_set_flag(ax25->sk, SOCK_DEAD);
}
bh_unlock_sock(ax25->sk);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 109 | 78.42% | 2 | 33.33% |
| Jeroen Vreeken | 14 | 10.07% | 1 | 16.67% |
| Arnaldo Carvalho de Melo | 12 | 8.63% | 2 | 33.33% |
| James Morris | 4 | 2.88% | 1 | 16.67% |
| Total | 139 | 100.00% | 6 | 100.00% |
void ax25_std_t1timer_expiry(ax25_cb *ax25)
{
switch (ax25->state) {
case AX25_STATE_1:
if (ax25->n2count == ax25->n2) {
if (ax25->modulus == AX25_MODULUS) {
ax25_disconnect(ax25, ETIMEDOUT);
return;
} else {
ax25->modulus = AX25_MODULUS;
ax25->window = ax25->ax25_dev->values[AX25_VALUES_WINDOW];
ax25->n2count = 0;
ax25_send_control(ax25, AX25_SABM, AX25_POLLON, AX25_COMMAND);
}
} else {
ax25->n2count++;
if (ax25->modulus == AX25_MODULUS)
ax25_send_control(ax25, AX25_SABM, AX25_POLLON, AX25_COMMAND);
else
ax25_send_control(ax25, AX25_SABME, AX25_POLLON, AX25_COMMAND);
}
break;
case AX25_STATE_2:
if (ax25->n2count == ax25->n2) {
ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
if (!sock_flag(ax25->sk, SOCK_DESTROY))
ax25_disconnect(ax25, ETIMEDOUT);
return;
} else {
ax25->n2count++;
ax25_send_control(ax25, AX25_DISC, AX25_POLLON, AX25_COMMAND);
}
break;
case AX25_STATE_3:
ax25->n2count = 1;
ax25_std_transmit_enquiry(ax25);
ax25->state = AX25_STATE_4;
break;
case AX25_STATE_4:
if (ax25->n2count == ax25->n2) {
ax25_send_control(ax25, AX25_DM, AX25_POLLON, AX25_RESPONSE);
ax25_disconnect(ax25, ETIMEDOUT);
return;
} else {
ax25->n2count++;
ax25_std_transmit_enquiry(ax25);
}
break;
}
ax25_calculate_t1(ax25);
ax25_start_t1timer(ax25);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 262 | 95.62% | 2 | 66.67% |
| Basil Gunn | 12 | 4.38% | 1 | 33.33% |
| Total | 274 | 100.00% | 3 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Linus Torvalds (pre-git) | 587 | 81.87% | 3 | 20.00% |
| Jeroen Vreeken | 68 | 9.48% | 1 | 6.67% |
| Arnaldo Carvalho de Melo | 22 | 3.07% | 3 | 20.00% |
| Basil Gunn | 16 | 2.23% | 1 | 6.67% |
| David S. Miller | 11 | 1.53% | 2 | 13.33% |
| James Morris | 8 | 1.12% | 1 | 6.67% |
| Ralf Bächle | 2 | 0.28% | 2 | 13.33% |
| Eric Dumazet | 2 | 0.28% | 1 | 6.67% |
| Linus Torvalds | 1 | 0.14% | 1 | 6.67% |
| Total | 717 | 100.00% | 15 | 100.00% |
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