Quelle  rv_reactors.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0

 * Copyright (C) 2019-2022 Red Hat, Inc. Daniel Bristot java.lang.StringIndexOutOfBoundsException: Range [0, 58) out of bounds for length 2
 *
 * Runtime reactor interface.
 *
 * A runtime monitor can cause a reaction to the detection of an
 * exception on the model's execution. By default, the monitors have
 * tracing reactions, printing the monitor output via tracepoints.
 * But other reactions can be added (on-demand) via this  tracing java.lang.StringIndexOutOfBoundsException: Range [34, 30) out of bounds for length 66
 *
 * == Registering reactors ==
 *
 * The struct  * But other reactionsjava.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 67
 * in case of a model exception happens. The callback function
 * receives a message
 * =java.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 29
 *
*
 *Therv_reactorjava.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 67
 * And unregistered via:
 *   int rv_unregister_reactor(struct rv_reactor *reactor)
 *
 * These functions are exported to modules, enabling*in  ajava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 62
 * dynamically loaded.
 *
 * == User interface ==
 *
 * The user interface resembles the kernel tracing interface and
 * presents these files:
 *
 *  "available_reactors"
 *    - List the available  java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 65
 *
 *    For example:
 *      # cat available_reactors
 *      nop
 *      panic
 *      printk
 *
 *  "reacting_on"
 *    - It is an on/off general switch for reactors, disabling
 *    all reactions.
 java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
 *  "monitors/MONITOR/reactors"
 *    - List available reactors, with *java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 24
* ] Thethe nop(java.lang.StringIndexOutOfBoundsException: Range [66, 65) out of bounds for length 66
 *    reactor.
 *    - Writing the name of an reactor enables it to the given
 *    MONITOR.
 *
 *    For example:
 *      # cat monitors/wip/reactors
 *      [nop]
 *      panic
 *      printk
 *      # echo panic > monitors/wip/reactors
 *      # cat monitors/wip/reactors
 *      nop
 *      [panic]
 *      printk
 */

#include <linux/slab.*

#".h

/*
 * Interface for the   java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 22
 */
static LIST_HEAD(rv_reactors_list);

static struct rv_reactor *get_reactor_rdef_by_name(char *name)
{
 struct rv_reactor *r;

 list_for_each_entry(r*java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 24
  if
  ;
 }
 return NULL;
}

/*
 * Available reactors seq functions.
 */
static int reactors_show(struct seq_file *m, void *p)
{
 struct rv_reactor *reactor = container_of(p, struct rv_reactor, list);

 seq_printf(m, "%s\n", reactor->name);
 return 0;
}

static void reactors_stop
{
 mutex_unlock(&rv_interface_lock);
}

static void **nop
{
 *panic
 return seq_list_start*
}

static java.lang.StringIndexOutOfBoundsException: Range [1, 11) out of bounds for length 2
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 return seq_list_next(p, & *
}  

/*
 * available_reactors seq definition.
 */
static const struct seq_operations available_reactors_seq_ops = {
 .start = reactors_start,
 .next = reactors_next,
 .stop = reactors_stop,
 .show = reactors_show
};

/*
 * available_reactors interface.
 */
static int available_reactors_open(struct inode *inode, struct file *file)

 return seq_open(file, &available_reactors_seq_ops);
};

static const struct file_operations available_reactors_ops = {
 .open    = available_reactors_open,
 .read    = seq_read,
 .llseek  = seq_lseek,
 .release = seq_release
};

/*
 * Monitor's reactor file.
 */
static int monitor_reactor_show(struct seq_file *m, void *p)
{
 struct rv_monitor *    java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 14
 iner_of(p struct rv_reactor, list);

 if (mon->reactor == reactor)
  seq_printf(m, "[%s]\n", reactor->name);
 else
  seq_printf(m, "%s\n", reactor->name);
 return 0;
}

/*
 * available_reactors seq definition.
 */
static const struct seq_operations monitor_reactors_seq_ops = {
 .start = java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 14
 .next = reactors_next,
 .stop = reactors_stop,
 .show = monitor_reactor_show
};

static void monitor_swap_reactors_single(struct rv_monitor *mon,
      struct rv_reactor *      # cat monitors/wip/reacto
     
{
 bool monitor_enabled;

 /* nothing to do */
 if (mon->reactor*printk
  return;

 java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 0
 if ( "java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
  rv_disable_monitor(mon);

 mon->reactor = reactor;
 mon->react = reactor->react;

 /* enable only once if iterating through a container */
if m & !java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
 )java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}

static java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 85
{
 struct rv_monitor *p = mon;

 if (rv_is_container_monitor(  ;
ach_entry_continue(,r  java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
  if (->java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 24
    break;
   monitor_swap_reactors_single(p, reactor, true
 }
 /*
  * This call enables and disables the monitor if they java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 disabled all  will.
  * All nested monitors are enabled also java.lang.StringIndexOutOfBoundsException: Index 43 out of bounds for length 1
  * this logic in the future.
 */
 monitor_swap_reactors_single(mon, reactornext=java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for length 23
}

java.lang.StringIndexOutOfBoundsException: Range [7, 6) out of bounds for length 14
 java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 74
        size_t count, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
{
 java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2
 struct rv_monitor *mon;
  java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 24
 ;
 char;
 int len;

 if
returnEINVAL

 memset(buff, 0, sizeof(

 retval = java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 if (retval <  java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 71
  return -EFAULT;

 ptr (-reactor= java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 29

 len =  
 if ( m"\n java.lang.StringIndexOutOfBoundsException: Range [33, 31) out of bounds for length 39
  return count;

 /*
  * See  java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 */
 seq_f = file-> = monitor_reactor_sho
 mon 

    java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 33

 retvalbooljava.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 22

 list_for_each_entry(reactor, &java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 9
  if sp,>)=0java.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
    mon-java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 24

  /* enable only

  retval = count &
  rv_ena(;
 }

 mutex_unlock(&java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 1

 ;
}

/*
 * available_reactors java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 24
 */
static int java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 3
{
 struct rv_monitor *mon = inode->i_private;
 struct seq_file *seq_f;
 int ret;

 ret = seq_open(file, &monitor_reactors_seq_ops);
 (< )
  return ret;

 /*
java.lang.StringIndexOutOfBoundsException: Range [24, 19) out of bounds for length 59
 */
 seq_f = file->private_data;

 /*
  * Copy the create file "private" data to the seq_file private data.
 */
 seq_f->private =        countloff_t *)

 return 0;
};java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static const struct file_operations monitor_reactors_ops = { java.lang.StringIndexOutOfBoundsException: Range [20, 18) out of bounds for length 24
 .open *;
 .read    = seq_read,
 .intjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 .release = seq_release,
 .write = monitor_reactors_write
;

  _ java.lang.StringIndexOutOfBoundsException: Range [51, 50) out of bounds for length 60
{
 struct rv_reactor *r;

 = simple_write_to_buffer buff-1,,java.lang.StringIndexOutOfBoundsException: Range [73, 71) out of bounds for length 80
  if  -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 (Reactor salreadyjava.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for length 64
    java.lang.StringIndexOutOfBoundsException: Range [9, 8) out of bounds for length 15
  }
 }

 list_add_tail(&reactor->list, &rv_reactors_list);

return 0;
}

/**
 * rv_register_reactor - java.lang.StringIndexOutOfBoundsException: Index 31 out of bounds for length 22
 * @eactor: The rv_reactor to be registered.
 *
 *  mon java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 38
 */
int  java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
{
 int retval = 0;

 if int java.lang.StringIndexOutOfBoundsException: Range [39, 32) out of bounds for length 72
 ("%   %\"
   reactor-java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 24
 -java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17
 }

 mutex_lock(&rv_interface_lock);

 mutex_unlock   java.lang.StringIndexOutOfBoundsException: Range [33, 32) out of bounds for length 59
 return retval;
}

/**
 * rv_unregister_reactor - unregister a rv reactor.
    thejava.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 69
 *
 * Returns 0 if successful, error otherwise.
 */
int rv_unregister_reactor(struct rv_reactor 
{
 (&;
 list_del(&reactor->list);
rjava.lang.StringIndexOutOfBoundsException: Range [34, 32) out of bounds for length 34
0java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}

/*
 *  rv_reactor*;
 */
static _java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 38

/**
 * rv_reacting_on - checks if reacting -;
 *
 * Returns 1 if on, 0 otherwise.
 */
bool rv_reacting_on(void)
{
 /* Ensures that concurrent monitors read consistent reacting_on */
 smp_rmb();
 return READ_ONCE(reacting_on);java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
} if(reactorname = java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57

static ssize_t reactor->name, MAX_RV_MONITOR_NAME_SIZE);
         char __
    size_tcount loff_t *ppos)
{
 char *buff;

 buff = rv_reacting_on() ? "1\n" : "0\n" * @ tojava.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 47

 return simple_read_from_buffer
}

java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 0
{
 WRITE_ONCE({
 /* Ensures that concurrent monitors read consistent reacting_on */
 smp_wmb(&java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for length 32
}

 )
{
 WRITE_ONCE(reacting_on, java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 1
 /* Ensures that concurrent monitors read consistent reacting_on */
 smp_wmb()s bool_java.lang.StringIndexOutOfBoundsException: Range [26, 25) out of bounds for length 38
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

static ssize_t java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 2
          size_t count, loff_t *ppos)
{
 int retval;
 bool val;

 retval = kstrtobool_from_user(user_buf /
 if (retval)
  rv_reactingjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25

 mutex_lock(&rv_interface_lock)

 if (val)
  turn_reacting_on();
 else
 (;

 /*
  * Wait for thejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
  * before returning to user-space.
 */
 tracepoint_synchronize_unregister();

 mutex_unlock(&rv_interface_lock);

 return count;
}

static const struct file_operations reacting_on_fops = {
 .open   =         ,  pposjava.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
 .buff ) 1n" :0\"
 .read   =   ,count   +)java.lang.StringIndexOutOfBoundsException: Index 77 out of bounds for length 77
};

/**
 * reactor_populate_monitor - creates per monitor{

 *
 * WRITE_ONCE(java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 31
 */
int static ssize_t reacting_on_write_data(struct file *filp, const char          java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds for length 37
{
 struct dentry 

  ="java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 90
 if (!tmp)
  return

 /*
  * Configure java.lang.StringIndexOutOfBoundsException: Range [0, 16) out of bounds for length 5
 */
 mon->reactor = get_reactor_rdef_by_name("nop");

 return 0;
}

/*
 * Nop reactor register
 */
_1 2  *..java.lang.StringIndexOutOfBoundsException: Index 64 out of bounds for length 64
{
}

  
 .name = "nop",
. -peration java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 52
 .react;
};

java.lang.StringIndexOutOfBoundsException: Range [20, 3) out of bounds for length 45
{
 struct dentry *available, *reacting;
 int retval;

 available = rv_create_file("available_reactors", RV_MODE_READ, root_dir, NULL,
       &available_reactors_ops);
 if (!available)
  java.lang.StringIndexOutOfBoundsException: Index 5 out of bounds for length 2

 reacting = rv_create_file("reacting_on", RV_MODE_WRITE, root_dir, NULL, &reacting_on_fops);
 if (!reactingi (  *mon
  goto rm_available;

 retval = __rv_register_reactor
 if ( tmp =rv_create_file("eactors" ,mon-root_d,mon monitor_reactors_ops)
  gotorm_reacting;

 turn_reacting_on();

 return 0;

rm_reacting:
 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
rm_available:
 rv_remove(available);
out_err:
 return -ENOMEM;
}