cregit-Linux how code gets into the kernel

Release 4.7 net/rose/rose_timer.c

Directory: net/rose
/*
 * 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) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk)
 * Copyright (C) 2002 Ralf Baechle DO1GRB (ralf@gnu.org)
 */
#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 <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/fcntl.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <net/rose.h>

static void rose_heartbeat_expiry(unsigned long);
static void rose_timer_expiry(unsigned long);
static void rose_idletimer_expiry(unsigned long);


void rose_start_heartbeat(struct sock *sk) { del_timer(&sk->sk_timer); sk->sk_timer.data = (unsigned long)sk; sk->sk_timer.function = &rose_heartbeat_expiry; sk->sk_timer.expires = jiffies + 5 * HZ; add_timer(&sk->sk_timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git5491.53%150.00%
arnaldo carvalho de meloarnaldo carvalho de melo58.47%150.00%
Total59100.00%2100.00%


void rose_start_t1timer(struct sock *sk) { struct rose_sock *rose = rose_sk(sk); del_timer(&rose->timer); rose->timer.data = (unsigned long)sk; rose->timer.function = &rose_timer_expiry; rose->timer.expires = jiffies + rose->t1; add_timer(&rose->timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git5985.51%133.33%
david s. millerdavid s. miller811.59%133.33%
ralf baechleralf baechle22.90%133.33%
Total69100.00%3100.00%


void rose_start_t2timer(struct sock *sk) { struct rose_sock *rose = rose_sk(sk); del_timer(&rose->timer); rose->timer.data = (unsigned long)sk; rose->timer.function = &rose_timer_expiry; rose->timer.expires = jiffies + rose->t2; add_timer(&rose->timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git5985.51%133.33%
david s. millerdavid s. miller811.59%133.33%
ralf baechleralf baechle22.90%133.33%
Total69100.00%3100.00%


void rose_start_t3timer(struct sock *sk) { struct rose_sock *rose = rose_sk(sk); del_timer(&rose->timer); rose->timer.data = (unsigned long)sk; rose->timer.function = &rose_timer_expiry; rose->timer.expires = jiffies + rose->t3; add_timer(&rose->timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git5985.51%133.33%
david s. millerdavid s. miller811.59%133.33%
ralf baechleralf baechle22.90%133.33%
Total69100.00%3100.00%


void rose_start_hbtimer(struct sock *sk) { struct rose_sock *rose = rose_sk(sk); del_timer(&rose->timer); rose->timer.data = (unsigned long)sk; rose->timer.function = &rose_timer_expiry; rose->timer.expires = jiffies + rose->hb; add_timer(&rose->timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git5985.51%133.33%
david s. millerdavid s. miller811.59%133.33%
ralf baechleralf baechle22.90%133.33%
Total69100.00%3100.00%


void rose_start_idletimer(struct sock *sk) { struct rose_sock *rose = rose_sk(sk); del_timer(&rose->idletimer); if (rose->idle > 0) { rose->idletimer.data = (unsigned long)sk; rose->idletimer.function = &rose_idletimer_expiry; rose->idletimer.expires = jiffies + rose->idle; add_timer(&rose->idletimer); } }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git6987.34%133.33%
david s. millerdavid s. miller810.13%133.33%
ralf baechleralf baechle22.53%133.33%
Total79100.00%3100.00%


void rose_stop_heartbeat(struct sock *sk) { del_timer(&sk->sk_timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git1794.44%266.67%
arnaldo carvalho de meloarnaldo carvalho de melo15.56%133.33%
Total18100.00%3100.00%


void rose_stop_timer(struct sock *sk) { del_timer(&rose_sk(sk)->timer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git1885.71%266.67%
david s. millerdavid s. miller314.29%133.33%
Total21100.00%3100.00%


void rose_stop_idletimer(struct sock *sk) { del_timer(&rose_sk(sk)->idletimer); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git1885.71%266.67%
david s. millerdavid s. miller314.29%133.33%
Total21100.00%3100.00%


static void rose_heartbeat_expiry(unsigned long param) { struct sock *sk = (struct sock *)param; struct rose_sock *rose = rose_sk(sk); bh_lock_sock(sk); switch (rose->state) { case ROSE_STATE_0: /* Magic here: If we listen() and a new link dies before it is accepted() it isn't 'dead' so doesn't get removed. */ if (sock_flag(sk, SOCK_DESTROY) || (sk->sk_state == TCP_LISTEN && sock_flag(sk, SOCK_DEAD))) { bh_unlock_sock(sk); rose_destroy_socket(sk); return; } break; case ROSE_STATE_3: /* * Check for the state of the receive buffer. */ if (atomic_read(&sk->sk_rmem_alloc) < (sk->sk_rcvbuf / 2) && (rose->condition & ROSE_COND_OWN_RX_BUSY)) { rose->condition &= ~ROSE_COND_OWN_RX_BUSY; rose->condition &= ~ROSE_COND_ACK_PENDING; rose->vl = rose->vr; rose_write_internal(sk, ROSE_RR); rose_stop_timer(sk); /* HB */ break; } break; } rose_start_heartbeat(sk); bh_unlock_sock(sk); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git12675.90%538.46%
ralf baechleralf baechle148.43%323.08%
arnaldo carvalho de meloarnaldo carvalho de melo95.42%215.38%
david s. millerdavid s. miller84.82%17.69%
andrew mortonandrew morton53.01%17.69%
james morrisjames morris42.41%17.69%
Total166100.00%13100.00%


static void rose_timer_expiry(unsigned long param) { struct sock *sk = (struct sock *)param; struct rose_sock *rose = rose_sk(sk); bh_lock_sock(sk); switch (rose->state) { case ROSE_STATE_1: /* T1 */ case ROSE_STATE_4: /* T2 */ rose_write_internal(sk, ROSE_CLEAR_REQUEST); rose->state = ROSE_STATE_2; rose_start_t3timer(sk); break; case ROSE_STATE_2: /* T3 */ rose->neighbour->use--; rose_disconnect(sk, ETIMEDOUT, -1, -1); break; case ROSE_STATE_3: /* HB */ if (rose->condition & ROSE_COND_ACK_PENDING) { rose->condition &= ~ROSE_COND_ACK_PENDING; rose_enquiry_response(sk); } break; } bh_unlock_sock(sk); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git10984.50%457.14%
ralf baechleralf baechle129.30%228.57%
david s. millerdavid s. miller86.20%114.29%
Total129100.00%7100.00%


static void rose_idletimer_expiry(unsigned long param) { struct sock *sk = (struct sock *)param; bh_lock_sock(sk); rose_clear_queues(sk); rose_write_internal(sk, ROSE_CLEAR_REQUEST); rose_sk(sk)->state = ROSE_STATE_2; rose_start_t3timer(sk); sk->sk_state = TCP_CLOSE; sk->sk_err = 0; sk->sk_shutdown |= SEND_SHUTDOWN; if (!sock_flag(sk, SOCK_DEAD)) { sk->sk_state_change(sk); sock_set_flag(sk, SOCK_DEAD); } bh_unlock_sock(sk); }

Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git7371.57%337.50%
arnaldo carvalho de meloarnaldo carvalho de melo1211.76%225.00%
ralf baechleralf baechle109.80%112.50%
james morrisjames morris43.92%112.50%
david s. millerdavid s. miller32.94%112.50%
Total102100.00%8100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
pre-gitpre-git80083.68%637.50%
david s. millerdavid s. miller677.01%16.25%
ralf baechleralf baechle474.92%318.75%
arnaldo carvalho de meloarnaldo carvalho de melo282.93%318.75%
james morrisjames morris80.84%16.25%
andrew mortonandrew morton50.52%16.25%
rusty russellrusty russell10.10%16.25%
Total956100.00%16100.00%
Directory: net/rose
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