#include <linux/mm.h>

#include <linux/mmzone.h>

#include <linux/mman.h>

#include <linux/ratelimit.h>

#include "sim-assert.h"

#include "sim-types.h"

int drop_caches_sysctl_handler(struct ctl_table *table, int write,

			       void  *buffer, size_t *length, loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int lowmem_reserve_ratio_sysctl_handler(struct ctl_table *table, int write,

					void  *buffer, size_t *length, loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int min_free_kbytes_sysctl_handler(struct ctl_table *table, int write,

				   void  *buffer, size_t *length, loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int percpu_pagelist_fraction_sysctl_handler(struct ctl_table *table, int write,

					    void  *buffer, size_t *length, loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int dirty_background_ratio_handler(struct ctl_table *table, int write,

				   void  *buffer, size_t *lenp,

				   loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int dirty_background_bytes_handler(struct ctl_table *table, int write,

				   void  *buffer, size_t *lenp,

				   loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int dirty_ratio_handler(struct ctl_table *table, int write,

			void  *buffer, size_t *lenp,

			loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int dirty_bytes_handler(struct ctl_table *table, int write,

			void  *buffer, size_t *lenp,

			loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int dirty_writeback_centisecs_handler(struct ctl_table *table, int write,

				      void  *buffer, size_t *length, loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int scan_unevictable_handler(struct ctl_table *table, int write,

			     void __user *buffer,

			     size_t *length, loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int sched_rt_handler(struct ctl_table *table, int write,

		     void __user *buffer, size_t *lenp,

		     loff_t *ppos)

{

  sim_assert (false);

  return 0;

}

int sysctl_overcommit_memory = OVERCOMMIT_GUESS;

int sysctl_overcommit_ratio = 50;

int sysctl_panic_on_oom = 0;

int sysctl_oom_dump_tasks = 0;

int sysctl_oom_kill_allocating_task = 0;

int sysctl_nr_open = 1024*1024;

int sysctl_nr_open_min = BITS_PER_LONG;

int sysctl_nr_open_max = 1024 * 1024;

int sysctl_nr_trim_pages = 0;

int sysctl_drop_caches = 0;

int sysctl_lowmem_reserve_ratio[MAX_NR_ZONES-1] = {32};

int sysctl_vfs_cache_pressure = 100;

unsigned int sysctl_sched_child_runs_first = 0;

unsigned int sysctl_sched_compat_yield = 0;

unsigned int sysctl_sched_rt_period = 1000000;

int sysctl_sched_rt_runtime = 950000;

int vm_highmem_is_dirtyable;

unsigned long vm_dirty_bytes = 0;

int vm_dirty_ratio = 20;

int dirty_background_ratio = 10;

unsigned int dirty_expire_interval = 30 * 100;

unsigned int dirty_writeback_interval = 5 * 100;

unsigned long dirty_background_bytes = 0;

int percpu_pagelist_fraction = 0;

int panic_timeout = 0;

int panic_on_oops = 0;

int printk_delay_msec = 0;

DEFINE_RATELIMIT_STATE(printk_ratelimit_state, 5 * HZ, 10);

#define RESERVED_PIDS 300

int pid_max = PID_MAX_DEFAULT;

int pid_max_min = RESERVED_PIDS + 1;

int pid_max_max = PID_MAX_LIMIT;

int min_free_kbytes = 1024;

int max_threads = 100;

int laptop_mode = 0;

#define DEFAULT_MESSAGE_LOGLEVEL 4 /* KERN_WARNING */

#define MINIMUM_CONSOLE_LOGLEVEL 1 /* Minimum loglevel we let people use */

#define DEFAULT_CONSOLE_LOGLEVEL 7 /* anything MORE serious than KERN_DEBUG */

int console_printk[4] = {

  DEFAULT_CONSOLE_LOGLEVEL,       /* console_loglevel */

  DEFAULT_MESSAGE_LOGLEVEL,       /* default_message_loglevel */

  MINIMUM_CONSOLE_LOGLEVEL,       /* minimum_console_loglevel */

  DEFAULT_CONSOLE_LOGLEVEL,       /* default_console_loglevel */

};

int print_fatal_signals = 0;

unsigned int core_pipe_limit = 0;

int core_uses_pid = 0;

int vm_swappiness = 60;

int nr_pdflush_threads = 0;

unsigned long scan_unevictable_pages = 0;

int suid_dumpable = 0;

int page_cluster = 0;

int block_dump = 0;

int C_A_D = 0;

#include <linux/nsproxy.h>

struct nsproxy init_nsproxy;

#include <linux/reboot.h>

char poweroff_cmd[POWEROFF_CMD_PATH_LEN] = "/sbin/poweroff";

#include <linux/pipe_fs_i.h>

unsigned int pipe_max_pages =  PIPE_DEF_BUFFERS * 16;

unsigned int pipe_max_size = 1048576;

unsigned int pipe_min_size = PAGE_SIZE;

int pipe_proc_fn(struct ctl_table *table, int write, void __user *buf,

                 size_t *lenp, loff_t *ppos)

{

  return -1;

}

#include <linux/fs.h>

/**

 * Honestly, I don't understand half of that code.

 * It was modeled after fs/proc/proc_sysctl.c proc_sys_readdir

 */

static void iterate_recursive (const struct SimSysIterator *iter, struct ctl_table *table);

static void iterate_table_recursive (const struct SimSysIterator *iter, struct ctl_table *table)

{

  struct ctl_table *cur_table;

  for (cur_table = table; cur_table->procname != NULL; cur_table++)

    {

      if (table->child == 0)

	{

	  bool may_read = (table->mode & MAY_READ);

	  bool may_write = (table->mode & MAY_WRITE);

	  int flags = 0;

	  flags |= may_read?SIM_SYS_FILE_READ:0;

	  flags |= may_write?SIM_SYS_FILE_WRITE:0;

	  iter->report_file (iter, cur_table->procname, flags, (struct SimSysFile *)cur_table);

	}

      else

	{

	  iter->report_start_dir (iter, cur_table->procname);

	  iterate_recursive (iter, table->child);

	  iter->report_end_dir (iter);

	}

    }

}

static void iterate_recursive (const struct SimSysIterator *iter, struct ctl_table *table)

{

  struct ctl_table_header *root = sysctl_head_next (NULL);

  struct ctl_table_header *cur;

  iterate_table_recursive (iter, table);

  for (cur = root; cur != 0; cur = sysctl_head_next (cur))

    {

      if (cur->set != table)

	{

	  continue;

	}

      iterate_table_recursive (iter, cur->root);

    }

}

void sim_sys_iterate_files (const struct SimSysIterator *iter)

{

//	sim_assert (0);

	return;

  struct ctl_table_header *root = sysctl_head_next (NULL);

  iterate_recursive (iter, root->ctl_table);

}

int sim_sys_file_read (const struct SimSysFile *file, char *buffer, int size, int offset)

{

  struct ctl_table *table = (struct ctl_table *)file;

  loff_t ppos = offset;

  size_t result = size;

  int error;

  error = table->proc_handler (table, 0, buffer, &result, &ppos);

  return result;

}

int sim_sys_file_write (const struct SimSysFile *file, const char *buffer, int size, int offset)

{

  struct ctl_table *table = (struct ctl_table *)file;

  loff_t ppos = offset;

  size_t result = size;

  int error;

  error = table->proc_handler (table, 1, (char *)buffer, &result, &ppos);

  return result;

}