/*
|
/*
|
* linux/fs/proc/array.c
|
* linux/fs/proc/array.c
|
*
|
*
|
* Copyright (C) 1992 by Linus Torvalds
|
* Copyright (C) 1992 by Linus Torvalds
|
* based on ideas by Darren Senn
|
* based on ideas by Darren Senn
|
*
|
*
|
* Fixes:
|
* Fixes:
|
* Michael. K. Johnson: stat,statm extensions.
|
* Michael. K. Johnson: stat,statm extensions.
|
* <johnsonm@stolaf.edu>
|
* <johnsonm@stolaf.edu>
|
*
|
*
|
* Pauline Middelink : Made cmdline,envline only break at '\0's, to
|
* Pauline Middelink : Made cmdline,envline only break at '\0's, to
|
* make sure SET_PROCTITLE works. Also removed
|
* make sure SET_PROCTITLE works. Also removed
|
* bad '!' which forced address recalculation for
|
* bad '!' which forced address recalculation for
|
* EVERY character on the current page.
|
* EVERY character on the current page.
|
* <middelin@polyware.iaf.nl>
|
* <middelin@polyware.iaf.nl>
|
*
|
*
|
* Danny ter Haar : added cpuinfo
|
* Danny ter Haar : added cpuinfo
|
* <dth@cistron.nl>
|
* <dth@cistron.nl>
|
*
|
*
|
* Alessandro Rubini : profile extension.
|
* Alessandro Rubini : profile extension.
|
* <rubini@ipvvis.unipv.it>
|
* <rubini@ipvvis.unipv.it>
|
*
|
*
|
* Jeff Tranter : added BogoMips field to cpuinfo
|
* Jeff Tranter : added BogoMips field to cpuinfo
|
* <Jeff_Tranter@Mitel.COM>
|
* <Jeff_Tranter@Mitel.COM>
|
*
|
*
|
* Bruno Haible : remove 4K limit for the maps file
|
* Bruno Haible : remove 4K limit for the maps file
|
* <haible@ma2s2.mathematik.uni-karlsruhe.de>
|
* <haible@ma2s2.mathematik.uni-karlsruhe.de>
|
*
|
*
|
* Yves Arrouye : remove removal of trailing spaces in get_array.
|
* Yves Arrouye : remove removal of trailing spaces in get_array.
|
* <Yves.Arrouye@marin.fdn.fr>
|
* <Yves.Arrouye@marin.fdn.fr>
|
*
|
*
|
* Alan Cox : security fixes. <Alan.Cox@linux.org>
|
* Alan Cox : security fixes. <Alan.Cox@linux.org>
|
*/
|
*/
|
|
|
/*
|
/*
|
* uClinux revisions for NO_MM
|
* uClinux revisions for NO_MM
|
* Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>,
|
* Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>,
|
* The Silver Hammer Group, Ltd.
|
* The Silver Hammer Group, Ltd.
|
*/
|
*/
|
|
|
#include <linux/types.h>
|
#include <linux/types.h>
|
#include <linux/errno.h>
|
#include <linux/errno.h>
|
#include <linux/sched.h>
|
#include <linux/sched.h>
|
#include <linux/kernel.h>
|
#include <linux/kernel.h>
|
#include <linux/kernel_stat.h>
|
#include <linux/kernel_stat.h>
|
#include <linux/tty.h>
|
#include <linux/tty.h>
|
#include <linux/user.h>
|
#include <linux/user.h>
|
#include <linux/a.out.h>
|
#include <linux/a.out.h>
|
#include <linux/string.h>
|
#include <linux/string.h>
|
#include <linux/mman.h>
|
#include <linux/mman.h>
|
#include <linux/proc_fs.h>
|
#include <linux/proc_fs.h>
|
#include <linux/ioport.h>
|
#include <linux/ioport.h>
|
#include <linux/config.h>
|
#include <linux/config.h>
|
#include <linux/mm.h>
|
#include <linux/mm.h>
|
#include <linux/pagemap.h>
|
#include <linux/pagemap.h>
|
#include <linux/swap.h>
|
#include <linux/swap.h>
|
|
|
#include <asm/segment.h>
|
#include <asm/segment.h>
|
#include <asm/pgtable.h>
|
#include <asm/pgtable.h>
|
#include <asm/io.h>
|
#include <asm/io.h>
|
|
|
#define LOAD_INT(x) ((x) >> FSHIFT)
|
#define LOAD_INT(x) ((x) >> FSHIFT)
|
#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
|
#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
|
|
|
#ifdef CONFIG_DEBUG_MALLOC
|
#ifdef CONFIG_DEBUG_MALLOC
|
int get_malloc(char * buffer);
|
int get_malloc(char * buffer);
|
#endif
|
#endif
|
|
|
extern unsigned long get_wchan(struct task_struct *);
|
extern unsigned long get_wchan(struct task_struct *);
|
|
|
static int read_core(struct inode * inode, struct file * file,char * buf, int count)
|
static int read_core(struct inode * inode, struct file * file,char * buf, int count)
|
{
|
{
|
unsigned long p = file->f_pos, memsize;
|
unsigned long p = file->f_pos, memsize;
|
int read;
|
int read;
|
int count1;
|
int count1;
|
char * pnt;
|
char * pnt;
|
struct user dump;
|
struct user dump;
|
#ifdef __i386__
|
#ifdef __i386__
|
# define FIRST_MAPPED PAGE_SIZE /* we don't have page 0 mapped on x86.. */
|
# define FIRST_MAPPED PAGE_SIZE /* we don't have page 0 mapped on x86.. */
|
#else
|
#else
|
# define FIRST_MAPPED 0
|
# define FIRST_MAPPED 0
|
#endif
|
#endif
|
|
|
memset(&dump, 0, sizeof(struct user));
|
memset(&dump, 0, sizeof(struct user));
|
dump.magic = CMAGIC;
|
dump.magic = CMAGIC;
|
dump.u_dsize = MAP_NR(high_memory);
|
dump.u_dsize = MAP_NR(high_memory);
|
#ifdef __alpha__
|
#ifdef __alpha__
|
dump.start_data = PAGE_OFFSET;
|
dump.start_data = PAGE_OFFSET;
|
#endif
|
#endif
|
|
|
if (count < 0)
|
if (count < 0)
|
return -EINVAL;
|
return -EINVAL;
|
memsize = MAP_NR(high_memory + PAGE_SIZE) << PAGE_SHIFT;
|
memsize = MAP_NR(high_memory + PAGE_SIZE) << PAGE_SHIFT;
|
if (p >= memsize)
|
if (p >= memsize)
|
return 0;
|
return 0;
|
if (count > memsize - p)
|
if (count > memsize - p)
|
count = memsize - p;
|
count = memsize - p;
|
read = 0;
|
read = 0;
|
|
|
if (p < sizeof(struct user) && count > 0) {
|
if (p < sizeof(struct user) && count > 0) {
|
count1 = count;
|
count1 = count;
|
if (p + count1 > sizeof(struct user))
|
if (p + count1 > sizeof(struct user))
|
count1 = sizeof(struct user)-p;
|
count1 = sizeof(struct user)-p;
|
pnt = (char *) &dump + p;
|
pnt = (char *) &dump + p;
|
memcpy_tofs(buf,(void *) pnt, count1);
|
memcpy_tofs(buf,(void *) pnt, count1);
|
buf += count1;
|
buf += count1;
|
p += count1;
|
p += count1;
|
count -= count1;
|
count -= count1;
|
read += count1;
|
read += count1;
|
}
|
}
|
|
|
while (count > 0 && p < PAGE_SIZE + FIRST_MAPPED) {
|
while (count > 0 && p < PAGE_SIZE + FIRST_MAPPED) {
|
put_user(0,buf);
|
put_user(0,buf);
|
buf++;
|
buf++;
|
p++;
|
p++;
|
count--;
|
count--;
|
read++;
|
read++;
|
}
|
}
|
memcpy_tofs(buf, (void *) (PAGE_OFFSET + p - PAGE_SIZE), count);
|
memcpy_tofs(buf, (void *) (PAGE_OFFSET + p - PAGE_SIZE), count);
|
read += count;
|
read += count;
|
file->f_pos += read;
|
file->f_pos += read;
|
return read;
|
return read;
|
}
|
}
|
|
|
static struct file_operations proc_kcore_operations = {
|
static struct file_operations proc_kcore_operations = {
|
NULL, /* lseek */
|
NULL, /* lseek */
|
read_core,
|
read_core,
|
};
|
};
|
|
|
struct inode_operations proc_kcore_inode_operations = {
|
struct inode_operations proc_kcore_inode_operations = {
|
&proc_kcore_operations,
|
&proc_kcore_operations,
|
};
|
};
|
|
|
|
|
/*
|
/*
|
* This function accesses profiling information. The returned data is
|
* This function accesses profiling information. The returned data is
|
* binary: the sampling step and the actual contents of the profile
|
* binary: the sampling step and the actual contents of the profile
|
* buffer. Use of the program readprofile is recommended in order to
|
* buffer. Use of the program readprofile is recommended in order to
|
* get meaningful info out of these data.
|
* get meaningful info out of these data.
|
*/
|
*/
|
static int read_profile(struct inode *inode, struct file *file, char *buf, int count)
|
static int read_profile(struct inode *inode, struct file *file, char *buf, int count)
|
{
|
{
|
unsigned long p = file->f_pos;
|
unsigned long p = file->f_pos;
|
int read;
|
int read;
|
char * pnt;
|
char * pnt;
|
unsigned int sample_step = 1 << prof_shift;
|
unsigned int sample_step = 1 << prof_shift;
|
|
|
if (count < 0)
|
if (count < 0)
|
return -EINVAL;
|
return -EINVAL;
|
if (p >= (prof_len+1)*sizeof(unsigned int))
|
if (p >= (prof_len+1)*sizeof(unsigned int))
|
return 0;
|
return 0;
|
if (count > (prof_len+1)*sizeof(unsigned int) - p)
|
if (count > (prof_len+1)*sizeof(unsigned int) - p)
|
count = (prof_len+1)*sizeof(unsigned int) - p;
|
count = (prof_len+1)*sizeof(unsigned int) - p;
|
read = 0;
|
read = 0;
|
|
|
while (p < sizeof(unsigned int) && count > 0) {
|
while (p < sizeof(unsigned int) && count > 0) {
|
put_user(*((char *)(&sample_step)+p),buf);
|
put_user(*((char *)(&sample_step)+p),buf);
|
buf++; p++; count--; read++;
|
buf++; p++; count--; read++;
|
}
|
}
|
pnt = (char *)prof_buffer + p - sizeof(unsigned int);
|
pnt = (char *)prof_buffer + p - sizeof(unsigned int);
|
memcpy_tofs(buf,(void *)pnt,count);
|
memcpy_tofs(buf,(void *)pnt,count);
|
read += count;
|
read += count;
|
file->f_pos += read;
|
file->f_pos += read;
|
return read;
|
return read;
|
}
|
}
|
|
|
/* Writing to /proc/profile resets the counters */
|
/* Writing to /proc/profile resets the counters */
|
static int write_profile(struct inode * inode, struct file * file, const char * buf, int count)
|
static int write_profile(struct inode * inode, struct file * file, const char * buf, int count)
|
{
|
{
|
int i=prof_len;
|
int i=prof_len;
|
|
|
while (i--)
|
while (i--)
|
prof_buffer[i]=0UL;
|
prof_buffer[i]=0UL;
|
return count;
|
return count;
|
}
|
}
|
|
|
static struct file_operations proc_profile_operations = {
|
static struct file_operations proc_profile_operations = {
|
NULL, /* lseek */
|
NULL, /* lseek */
|
read_profile,
|
read_profile,
|
write_profile,
|
write_profile,
|
};
|
};
|
|
|
struct inode_operations proc_profile_inode_operations = {
|
struct inode_operations proc_profile_inode_operations = {
|
&proc_profile_operations,
|
&proc_profile_operations,
|
};
|
};
|
|
|
|
|
static int get_loadavg(char * buffer)
|
static int get_loadavg(char * buffer)
|
{
|
{
|
int a, b, c;
|
int a, b, c;
|
|
|
a = avenrun[0] + (FIXED_1/200);
|
a = avenrun[0] + (FIXED_1/200);
|
b = avenrun[1] + (FIXED_1/200);
|
b = avenrun[1] + (FIXED_1/200);
|
c = avenrun[2] + (FIXED_1/200);
|
c = avenrun[2] + (FIXED_1/200);
|
return sprintf(buffer,"%d.%02d %d.%02d %d.%02d %d/%d %d\n",
|
return sprintf(buffer,"%d.%02d %d.%02d %d.%02d %d/%d %d\n",
|
LOAD_INT(a), LOAD_FRAC(a),
|
LOAD_INT(a), LOAD_FRAC(a),
|
LOAD_INT(b), LOAD_FRAC(b),
|
LOAD_INT(b), LOAD_FRAC(b),
|
LOAD_INT(c), LOAD_FRAC(c),
|
LOAD_INT(c), LOAD_FRAC(c),
|
nr_running, nr_tasks, last_pid);
|
nr_running, nr_tasks, last_pid);
|
}
|
}
|
|
|
static int get_kstat(char * buffer)
|
static int get_kstat(char * buffer)
|
{
|
{
|
int i, len;
|
int i, len;
|
unsigned sum = 0;
|
unsigned sum = 0;
|
extern unsigned long total_forks;
|
extern unsigned long total_forks;
|
|
|
for (i = 0 ; i < NR_IRQS ; i++)
|
for (i = 0 ; i < NR_IRQS ; i++)
|
sum += kstat.interrupts[i];
|
sum += kstat.interrupts[i];
|
len = sprintf(buffer,
|
len = sprintf(buffer,
|
"cpu %u %u %u %lu\n"
|
"cpu %u %u %u %lu\n"
|
"disk %u %u %u %u\n"
|
"disk %u %u %u %u\n"
|
"disk_rio %u %u %u %u\n"
|
"disk_rio %u %u %u %u\n"
|
"disk_wio %u %u %u %u\n"
|
"disk_wio %u %u %u %u\n"
|
"disk_rblk %u %u %u %u\n"
|
"disk_rblk %u %u %u %u\n"
|
"disk_wblk %u %u %u %u\n"
|
"disk_wblk %u %u %u %u\n"
|
"page %u %u\n"
|
"page %u %u\n"
|
"swap %u %u\n"
|
"swap %u %u\n"
|
"intr %u",
|
"intr %u",
|
kstat.cpu_user,
|
kstat.cpu_user,
|
kstat.cpu_nice,
|
kstat.cpu_nice,
|
kstat.cpu_system,
|
kstat.cpu_system,
|
jiffies - (kstat.cpu_user + kstat.cpu_nice + kstat.cpu_system),
|
jiffies - (kstat.cpu_user + kstat.cpu_nice + kstat.cpu_system),
|
kstat.dk_drive[0], kstat.dk_drive[1],
|
kstat.dk_drive[0], kstat.dk_drive[1],
|
kstat.dk_drive[2], kstat.dk_drive[3],
|
kstat.dk_drive[2], kstat.dk_drive[3],
|
kstat.dk_drive_rio[0], kstat.dk_drive_rio[1],
|
kstat.dk_drive_rio[0], kstat.dk_drive_rio[1],
|
kstat.dk_drive_rio[2], kstat.dk_drive_rio[3],
|
kstat.dk_drive_rio[2], kstat.dk_drive_rio[3],
|
kstat.dk_drive_wio[0], kstat.dk_drive_wio[1],
|
kstat.dk_drive_wio[0], kstat.dk_drive_wio[1],
|
kstat.dk_drive_wio[2], kstat.dk_drive_wio[3],
|
kstat.dk_drive_wio[2], kstat.dk_drive_wio[3],
|
kstat.dk_drive_rblk[0], kstat.dk_drive_rblk[1],
|
kstat.dk_drive_rblk[0], kstat.dk_drive_rblk[1],
|
kstat.dk_drive_rblk[2], kstat.dk_drive_rblk[3],
|
kstat.dk_drive_rblk[2], kstat.dk_drive_rblk[3],
|
kstat.dk_drive_wblk[0], kstat.dk_drive_wblk[1],
|
kstat.dk_drive_wblk[0], kstat.dk_drive_wblk[1],
|
kstat.dk_drive_wblk[2], kstat.dk_drive_wblk[3],
|
kstat.dk_drive_wblk[2], kstat.dk_drive_wblk[3],
|
kstat.pgpgin,
|
kstat.pgpgin,
|
kstat.pgpgout,
|
kstat.pgpgout,
|
kstat.pswpin,
|
kstat.pswpin,
|
kstat.pswpout,
|
kstat.pswpout,
|
sum);
|
sum);
|
for (i = 0 ; i < NR_IRQS ; i++)
|
for (i = 0 ; i < NR_IRQS ; i++)
|
len += sprintf(buffer + len, " %u", kstat.interrupts[i]);
|
len += sprintf(buffer + len, " %u", kstat.interrupts[i]);
|
len += sprintf(buffer + len,
|
len += sprintf(buffer + len,
|
"\nctxt %u\n"
|
"\nctxt %u\n"
|
"btime %lu\n"
|
"btime %lu\n"
|
"processes %lu\n",
|
"processes %lu\n",
|
kstat.context_swtch,
|
kstat.context_swtch,
|
xtime.tv_sec - jiffies / HZ,
|
xtime.tv_sec - jiffies / HZ,
|
total_forks);
|
total_forks);
|
return len;
|
return len;
|
}
|
}
|
|
|
|
|
static int get_uptime(char * buffer)
|
static int get_uptime(char * buffer)
|
{
|
{
|
unsigned long uptime;
|
unsigned long uptime;
|
unsigned long idle;
|
unsigned long idle;
|
|
|
uptime = jiffies;
|
uptime = jiffies;
|
idle = task[0]->utime + task[0]->stime;
|
idle = task[0]->utime + task[0]->stime;
|
|
|
/* The formula for the fraction parts really is ((t * 100) / HZ) % 100, but
|
/* The formula for the fraction parts really is ((t * 100) / HZ) % 100, but
|
that would overflow about every five days at HZ == 100.
|
that would overflow about every five days at HZ == 100.
|
Therefore the identity a = (a / b) * b + a % b is used so that it is
|
Therefore the identity a = (a / b) * b + a % b is used so that it is
|
calculated as (((t / HZ) * 100) + ((t % HZ) * 100) / HZ) % 100.
|
calculated as (((t / HZ) * 100) + ((t % HZ) * 100) / HZ) % 100.
|
The part in front of the '+' always evaluates as 0 (mod 100). All divisions
|
The part in front of the '+' always evaluates as 0 (mod 100). All divisions
|
in the above formulas are truncating. For HZ being a power of 10, the
|
in the above formulas are truncating. For HZ being a power of 10, the
|
calculations simplify to the version in the #else part (if the printf
|
calculations simplify to the version in the #else part (if the printf
|
format is adapted to the same number of digits as zeroes in HZ.
|
format is adapted to the same number of digits as zeroes in HZ.
|
*/
|
*/
|
#if HZ!=100
|
#if HZ!=100
|
return sprintf(buffer,"%lu.%02lu %lu.%02lu\n",
|
return sprintf(buffer,"%lu.%02lu %lu.%02lu\n",
|
uptime / HZ,
|
uptime / HZ,
|
(((uptime % HZ) * 100) / HZ) % 100,
|
(((uptime % HZ) * 100) / HZ) % 100,
|
idle / HZ,
|
idle / HZ,
|
(((idle % HZ) * 100) / HZ) % 100);
|
(((idle % HZ) * 100) / HZ) % 100);
|
#else
|
#else
|
return sprintf(buffer,"%lu.%02lu %lu.%02lu\n",
|
return sprintf(buffer,"%lu.%02lu %lu.%02lu\n",
|
uptime / HZ,
|
uptime / HZ,
|
uptime % HZ,
|
uptime % HZ,
|
idle / HZ,
|
idle / HZ,
|
idle % HZ);
|
idle % HZ);
|
#endif
|
#endif
|
}
|
}
|
|
|
static int get_meminfo(char * buffer)
|
static int get_meminfo(char * buffer)
|
{
|
{
|
struct sysinfo i;
|
struct sysinfo i;
|
int len;
|
int len;
|
|
|
si_meminfo(&i);
|
si_meminfo(&i);
|
si_swapinfo(&i);
|
si_swapinfo(&i);
|
len = sprintf(buffer, " total: used: free: shared: buffers: cached:\n"
|
len = sprintf(buffer, " total: used: free: shared: buffers: cached:\n"
|
"Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n"
|
"Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n"
|
"Swap: %8lu %8lu %8lu\n",
|
"Swap: %8lu %8lu %8lu\n",
|
i.totalram, i.totalram-i.freeram, i.freeram, i.sharedram, i.bufferram, page_cache_size*PAGE_SIZE,
|
i.totalram, i.totalram-i.freeram, i.freeram, i.sharedram, i.bufferram, page_cache_size*PAGE_SIZE,
|
i.totalswap, i.totalswap-i.freeswap, i.freeswap);
|
i.totalswap, i.totalswap-i.freeswap, i.freeswap);
|
/*
|
/*
|
* Tagged format, for easy grepping and expansion. The above will go away
|
* Tagged format, for easy grepping and expansion. The above will go away
|
* eventually, once the tools have been updated.
|
* eventually, once the tools have been updated.
|
*/
|
*/
|
return len + sprintf(buffer+len,
|
return len + sprintf(buffer+len,
|
"MemTotal: %8lu kB\n"
|
"MemTotal: %8lu kB\n"
|
"MemFree: %8lu kB\n"
|
"MemFree: %8lu kB\n"
|
"MemShared: %8lu kB\n"
|
"MemShared: %8lu kB\n"
|
"Buffers: %8lu kB\n"
|
"Buffers: %8lu kB\n"
|
"Cached: %8lu kB\n"
|
"Cached: %8lu kB\n"
|
"SwapTotal: %8lu kB\n"
|
"SwapTotal: %8lu kB\n"
|
"SwapFree: %8lu kB\n",
|
"SwapFree: %8lu kB\n",
|
i.totalram >> 10,
|
i.totalram >> 10,
|
i.freeram >> 10,
|
i.freeram >> 10,
|
i.sharedram >> 10,
|
i.sharedram >> 10,
|
i.bufferram >> 10,
|
i.bufferram >> 10,
|
page_cache_size << (PAGE_SHIFT - 10),
|
page_cache_size << (PAGE_SHIFT - 10),
|
i.totalswap >> 10,
|
i.totalswap >> 10,
|
i.freeswap >> 10);
|
i.freeswap >> 10);
|
}
|
}
|
|
|
static int get_version(char * buffer)
|
static int get_version(char * buffer)
|
{
|
{
|
extern const char *linux_banner;
|
extern const char *linux_banner;
|
|
|
strcpy(buffer, linux_banner);
|
strcpy(buffer, linux_banner);
|
return strlen(buffer);
|
return strlen(buffer);
|
}
|
}
|
|
|
static int get_cmdline(char * buffer)
|
static int get_cmdline(char * buffer)
|
{
|
{
|
extern char saved_command_line[];
|
extern char saved_command_line[];
|
|
|
return sprintf(buffer, "%s\n", saved_command_line);
|
return sprintf(buffer, "%s\n", saved_command_line);
|
}
|
}
|
|
|
static struct task_struct ** get_task(pid_t pid)
|
static struct task_struct ** get_task(pid_t pid)
|
{
|
{
|
struct task_struct ** p;
|
struct task_struct ** p;
|
|
|
p = task;
|
p = task;
|
while (++p < task+NR_TASKS) {
|
while (++p < task+NR_TASKS) {
|
if (*p && (*p)->pid == pid)
|
if (*p && (*p)->pid == pid)
|
return p;
|
return p;
|
}
|
}
|
return NULL;
|
return NULL;
|
}
|
}
|
|
|
static unsigned long get_phys_addr(struct task_struct * p, unsigned long ptr)
|
static unsigned long get_phys_addr(struct task_struct * p, unsigned long ptr)
|
{
|
{
|
#ifndef NO_MM
|
#ifndef NO_MM
|
pgd_t *page_dir;
|
pgd_t *page_dir;
|
pmd_t *page_middle;
|
pmd_t *page_middle;
|
pte_t pte;
|
pte_t pte;
|
|
|
if (!p || !p->mm || ptr >= TASK_SIZE)
|
if (!p || !p->mm || ptr >= TASK_SIZE)
|
return 0;
|
return 0;
|
page_dir = pgd_offset(p->mm,ptr);
|
page_dir = pgd_offset(p->mm,ptr);
|
if (pgd_none(*page_dir))
|
if (pgd_none(*page_dir))
|
return 0;
|
return 0;
|
if (pgd_bad(*page_dir)) {
|
if (pgd_bad(*page_dir)) {
|
printk("bad page directory entry %08lx\n", pgd_val(*page_dir));
|
printk("bad page directory entry %08lx\n", pgd_val(*page_dir));
|
pgd_clear(page_dir);
|
pgd_clear(page_dir);
|
return 0;
|
return 0;
|
}
|
}
|
page_middle = pmd_offset(page_dir,ptr);
|
page_middle = pmd_offset(page_dir,ptr);
|
if (pmd_none(*page_middle))
|
if (pmd_none(*page_middle))
|
return 0;
|
return 0;
|
if (pmd_bad(*page_middle)) {
|
if (pmd_bad(*page_middle)) {
|
printk("bad page middle entry %08lx\n", pmd_val(*page_middle));
|
printk("bad page middle entry %08lx\n", pmd_val(*page_middle));
|
pmd_clear(page_middle);
|
pmd_clear(page_middle);
|
return 0;
|
return 0;
|
}
|
}
|
pte = *pte_offset(page_middle,ptr);
|
pte = *pte_offset(page_middle,ptr);
|
if (!pte_present(pte))
|
if (!pte_present(pte))
|
return 0;
|
return 0;
|
return pte_page(pte) + (ptr & ~PAGE_MASK);
|
return pte_page(pte) + (ptr & ~PAGE_MASK);
|
#else /* NO_MM */
|
#else /* NO_MM */
|
return ptr;
|
return ptr;
|
#endif /* NO_MM */
|
#endif /* NO_MM */
|
}
|
}
|
|
|
static int get_array(struct task_struct ** p, unsigned long start, unsigned long end, char * buffer)
|
static int get_array(struct task_struct ** p, unsigned long start, unsigned long end, char * buffer)
|
{
|
{
|
unsigned long addr;
|
unsigned long addr;
|
int size = 0, result = 0;
|
int size = 0, result = 0;
|
char c;
|
char c;
|
|
|
if (start >= end)
|
if (start >= end)
|
return result;
|
return result;
|
for (;;) {
|
for (;;) {
|
addr = get_phys_addr(*p, start);
|
addr = get_phys_addr(*p, start);
|
if (!addr)
|
if (!addr)
|
return result;
|
return result;
|
do {
|
do {
|
c = *(char *) addr;
|
c = *(char *) addr;
|
if (!c)
|
if (!c)
|
result = size;
|
result = size;
|
if (size < PAGE_SIZE)
|
if (size < PAGE_SIZE)
|
buffer[size++] = c;
|
buffer[size++] = c;
|
else
|
else
|
return result;
|
return result;
|
addr++;
|
addr++;
|
start++;
|
start++;
|
if (!c && start >= end)
|
if (!c && start >= end)
|
return result;
|
return result;
|
} while (addr & ~PAGE_MASK);
|
} while (addr & ~PAGE_MASK);
|
}
|
}
|
return result;
|
return result;
|
}
|
}
|
|
|
static int get_env(int pid, char * buffer)
|
static int get_env(int pid, char * buffer)
|
{
|
{
|
struct task_struct ** p = get_task(pid);
|
struct task_struct ** p = get_task(pid);
|
|
|
if (!p || !*p || !(*p)->mm)
|
if (!p || !*p || !(*p)->mm)
|
return 0;
|
return 0;
|
return get_array(p, (*p)->mm->env_start, (*p)->mm->env_end, buffer);
|
return get_array(p, (*p)->mm->env_start, (*p)->mm->env_end, buffer);
|
}
|
}
|
|
|
static int get_arg(int pid, char * buffer)
|
static int get_arg(int pid, char * buffer)
|
{
|
{
|
struct task_struct ** p = get_task(pid);
|
struct task_struct ** p = get_task(pid);
|
|
|
if (!p || !*p || !(*p)->mm)
|
if (!p || !*p || !(*p)->mm)
|
return 0;
|
return 0;
|
return get_array(p, (*p)->mm->arg_start, (*p)->mm->arg_end, buffer);
|
return get_array(p, (*p)->mm->arg_start, (*p)->mm->arg_end, buffer);
|
}
|
}
|
|
|
#if defined(__i386__)
|
#if defined(__i386__)
|
# define KSTK_EIP(tsk) (((unsigned long *)tsk->kernel_stack_page)[1019])
|
# define KSTK_EIP(tsk) (((unsigned long *)tsk->kernel_stack_page)[1019])
|
# define KSTK_ESP(tsk) (((unsigned long *)tsk->kernel_stack_page)[1022])
|
# define KSTK_ESP(tsk) (((unsigned long *)tsk->kernel_stack_page)[1022])
|
#elif defined(__alpha__)
|
#elif defined(__alpha__)
|
/*
|
/*
|
* See arch/alpha/kernel/ptrace.c for details.
|
* See arch/alpha/kernel/ptrace.c for details.
|
*/
|
*/
|
# define PT_REG(reg) (PAGE_SIZE - sizeof(struct pt_regs) \
|
# define PT_REG(reg) (PAGE_SIZE - sizeof(struct pt_regs) \
|
+ (long)&((struct pt_regs *)0)->reg)
|
+ (long)&((struct pt_regs *)0)->reg)
|
# define KSTK_EIP(tsk) (*(unsigned long *)(tsk->kernel_stack_page + PT_REG(pc)))
|
# define KSTK_EIP(tsk) (*(unsigned long *)(tsk->kernel_stack_page + PT_REG(pc)))
|
# define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->tss.usp)
|
# define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->tss.usp)
|
#elif defined(__sparc__)
|
#elif defined(__sparc__)
|
# define PT_REG(reg) (PAGE_SIZE - sizeof(struct pt_regs) \
|
# define PT_REG(reg) (PAGE_SIZE - sizeof(struct pt_regs) \
|
+ (long)&((struct pt_regs *)0)->reg)
|
+ (long)&((struct pt_regs *)0)->reg)
|
# define KSTK_EIP(tsk) (*(unsigned long *)(tsk->kernel_stack_page + PT_REG(pc)))
|
# define KSTK_EIP(tsk) (*(unsigned long *)(tsk->kernel_stack_page + PT_REG(pc)))
|
# define KSTK_ESP(tsk) (*(unsigned long *)(tsk->kernel_stack_page + PT_REG(u_regs[UREG_FP])))
|
# define KSTK_ESP(tsk) (*(unsigned long *)(tsk->kernel_stack_page + PT_REG(u_regs[UREG_FP])))
|
#endif
|
#endif
|
|
|
/* Gcc optimizes away "strlen(x)" for constant x */
|
/* Gcc optimizes away "strlen(x)" for constant x */
|
#define ADDBUF(buffer, string) \
|
#define ADDBUF(buffer, string) \
|
do { memcpy(buffer, string, strlen(string)); \
|
do { memcpy(buffer, string, strlen(string)); \
|
buffer += strlen(string); } while (0)
|
buffer += strlen(string); } while (0)
|
|
|
static inline char * task_name(struct task_struct *p, char * buf)
|
static inline char * task_name(struct task_struct *p, char * buf)
|
{
|
{
|
int i;
|
int i;
|
char * name;
|
char * name;
|
|
|
ADDBUF(buf, "Name:\t");
|
ADDBUF(buf, "Name:\t");
|
name = p->comm;
|
name = p->comm;
|
i = sizeof(p->comm);
|
i = sizeof(p->comm);
|
do {
|
do {
|
unsigned char c = *name;
|
unsigned char c = *name;
|
name++;
|
name++;
|
i--;
|
i--;
|
*buf = c;
|
*buf = c;
|
if (!c)
|
if (!c)
|
break;
|
break;
|
if (c == '\\') {
|
if (c == '\\') {
|
buf[1] = c;
|
buf[1] = c;
|
buf += 2;
|
buf += 2;
|
continue;
|
continue;
|
}
|
}
|
if (c == '\n') {
|
if (c == '\n') {
|
buf[0] = '\\';
|
buf[0] = '\\';
|
buf[1] = 'n';
|
buf[1] = 'n';
|
buf += 2;
|
buf += 2;
|
continue;
|
continue;
|
}
|
}
|
buf++;
|
buf++;
|
} while (i);
|
} while (i);
|
*buf = '\n';
|
*buf = '\n';
|
return buf+1;
|
return buf+1;
|
}
|
}
|
|
|
static inline char * task_state(struct task_struct *p, char *buffer)
|
static inline char * task_state(struct task_struct *p, char *buffer)
|
{
|
{
|
#define NR_STATES (sizeof(states)/sizeof(const char *))
|
#define NR_STATES (sizeof(states)/sizeof(const char *))
|
unsigned int n = p->state;
|
unsigned int n = p->state;
|
static const char * states[] = {
|
static const char * states[] = {
|
"R (running)",
|
"R (running)",
|
"S (sleeping)",
|
"S (sleeping)",
|
"D (disk sleep)",
|
"D (disk sleep)",
|
"Z (zombie)",
|
"Z (zombie)",
|
"T (stopped)",
|
"T (stopped)",
|
"W (paging)",
|
"W (paging)",
|
". Huh?"
|
". Huh?"
|
};
|
};
|
|
|
if (n >= NR_STATES)
|
if (n >= NR_STATES)
|
n = NR_STATES-1;
|
n = NR_STATES-1;
|
|
|
buffer += sprintf(buffer,
|
buffer += sprintf(buffer,
|
"State:\t%s\n"
|
"State:\t%s\n"
|
"Pid:\t%d\n"
|
"Pid:\t%d\n"
|
"PPid:\t%d\n"
|
"PPid:\t%d\n"
|
"Uid:\t%d\t%d\t%d\t%d\n"
|
"Uid:\t%d\t%d\t%d\t%d\n"
|
"Gid:\t%d\t%d\t%d\t%d\n",
|
"Gid:\t%d\t%d\t%d\t%d\n",
|
states[n],
|
states[n],
|
p->pid, p->p_pptr->pid,
|
p->pid, p->p_pptr->pid,
|
p->uid, p->euid, p->suid, p->fsuid,
|
p->uid, p->euid, p->suid, p->fsuid,
|
p->gid, p->egid, p->sgid, p->fsgid);
|
p->gid, p->egid, p->sgid, p->fsgid);
|
return buffer;
|
return buffer;
|
}
|
}
|
|
|
static inline char * task_mem(struct task_struct *p, char *buffer)
|
static inline char * task_mem(struct task_struct *p, char *buffer)
|
{
|
{
|
#ifndef NO_MM
|
#ifndef NO_MM
|
struct mm_struct * mm = p->mm;
|
struct mm_struct * mm = p->mm;
|
|
|
if (mm && mm != &init_mm) {
|
if (mm && mm != &init_mm) {
|
struct vm_area_struct * vma = mm->mmap;
|
struct vm_area_struct * vma = mm->mmap;
|
unsigned long data = 0, stack = 0;
|
unsigned long data = 0, stack = 0;
|
unsigned long exec = 0, lib = 0;
|
unsigned long exec = 0, lib = 0;
|
|
|
for (vma = mm->mmap; vma; vma = vma->vm_next) {
|
for (vma = mm->mmap; vma; vma = vma->vm_next) {
|
unsigned long len = (vma->vm_end - vma->vm_start) >> 10;
|
unsigned long len = (vma->vm_end - vma->vm_start) >> 10;
|
if (!vma->vm_inode) {
|
if (!vma->vm_inode) {
|
data += len;
|
data += len;
|
if (vma->vm_flags & VM_GROWSDOWN)
|
if (vma->vm_flags & VM_GROWSDOWN)
|
stack += len;
|
stack += len;
|
continue;
|
continue;
|
}
|
}
|
if (vma->vm_flags & VM_WRITE)
|
if (vma->vm_flags & VM_WRITE)
|
continue;
|
continue;
|
if (vma->vm_flags & VM_EXEC) {
|
if (vma->vm_flags & VM_EXEC) {
|
exec += len;
|
exec += len;
|
if (vma->vm_flags & VM_EXECUTABLE)
|
if (vma->vm_flags & VM_EXECUTABLE)
|
continue;
|
continue;
|
lib += len;
|
lib += len;
|
}
|
}
|
}
|
}
|
buffer += sprintf(buffer,
|
buffer += sprintf(buffer,
|
"VmSize:\t%8lu kB\n"
|
"VmSize:\t%8lu kB\n"
|
"VmLck:\t%8lu kB\n"
|
"VmLck:\t%8lu kB\n"
|
"VmRSS:\t%8lu kB\n"
|
"VmRSS:\t%8lu kB\n"
|
"VmData:\t%8lu kB\n"
|
"VmData:\t%8lu kB\n"
|
"VmStk:\t%8lu kB\n"
|
"VmStk:\t%8lu kB\n"
|
"VmExe:\t%8lu kB\n"
|
"VmExe:\t%8lu kB\n"
|
"VmLib:\t%8lu kB\n",
|
"VmLib:\t%8lu kB\n",
|
mm->total_vm << (PAGE_SHIFT-10),
|
mm->total_vm << (PAGE_SHIFT-10),
|
mm->locked_vm << (PAGE_SHIFT-10),
|
mm->locked_vm << (PAGE_SHIFT-10),
|
mm->rss << (PAGE_SHIFT-10),
|
mm->rss << (PAGE_SHIFT-10),
|
data - stack, stack,
|
data - stack, stack,
|
exec - lib, lib);
|
exec - lib, lib);
|
}
|
}
|
#else /* NO_MM */
|
#else /* NO_MM */
|
unsigned long bytes = 0, sbytes = 0;
|
unsigned long bytes = 0, sbytes = 0;
|
struct mm_tblock_struct * tblock;
|
struct mm_tblock_struct * tblock;
|
|
|
/* Logic: we've got two memory sums for each process, "shared", and
|
/* Logic: we've got two memory sums for each process, "shared", and
|
* "non-shared". Shared memory may get counted more then once, for
|
* "non-shared". Shared memory may get counted more then once, for
|
* each process that owns it. Non-shared memory is counted
|
* each process that owns it. Non-shared memory is counted
|
* accurately.
|
* accurately.
|
*
|
*
|
* -- Kenneth Albanowski
|
* -- Kenneth Albanowski
|
*/
|
*/
|
|
|
for(tblock = &p->mm->tblock;tblock;tblock=tblock->next) {
|
for(tblock = &p->mm->tblock;tblock;tblock=tblock->next) {
|
|
|
if (tblock->rblock) {
|
if (tblock->rblock) {
|
|
|
bytes += ksize(tblock);
|
bytes += ksize(tblock);
|
|
|
if ((p->mm->count > 1) || (tblock->rblock->refcount > 1)) {
|
if ((p->mm->count > 1) || (tblock->rblock->refcount > 1)) {
|
sbytes += ksize(tblock->rblock->kblock);
|
sbytes += ksize(tblock->rblock->kblock);
|
sbytes += ksize(tblock->rblock) ;
|
sbytes += ksize(tblock->rblock) ;
|
} else {
|
} else {
|
bytes += ksize(tblock->rblock->kblock);
|
bytes += ksize(tblock->rblock->kblock);
|
bytes += ksize(tblock->rblock) ;
|
bytes += ksize(tblock->rblock) ;
|
}
|
}
|
|
|
}
|
}
|
|
|
|
|
}
|
}
|
|
|
((p->mm->count > 1) ? sbytes : bytes) += ksize(p->mm);
|
((p->mm->count > 1) ? sbytes : bytes) += ksize(p->mm);
|
((p->fs->count > 1) ? sbytes : bytes) += ksize(p->fs);
|
((p->fs->count > 1) ? sbytes : bytes) += ksize(p->fs);
|
((p->files->count > 1) ? sbytes : bytes) += ksize(p->files);
|
((p->files->count > 1) ? sbytes : bytes) += ksize(p->files);
|
((p->sig->count > 1) ? sbytes : bytes) += ksize(p->sig);
|
((p->sig->count > 1) ? sbytes : bytes) += ksize(p->sig);
|
bytes += ksize(p);
|
bytes += ksize(p);
|
|
|
bytes += PAGE_SIZE; /* Kernel stack */
|
bytes += PAGE_SIZE; /* Kernel stack */
|
|
|
buffer += sprintf(buffer,
|
buffer += sprintf(buffer,
|
"Mem:\t%8lu bytes\n"
|
"Mem:\t%8lu bytes\n"
|
"Shared:\t%8lu bytes\n",
|
"Shared:\t%8lu bytes\n",
|
bytes,
|
bytes,
|
sbytes);
|
sbytes);
|
#endif /* NO_MM */
|
#endif /* NO_MM */
|
return buffer;
|
return buffer;
|
}
|
}
|
|
|
static inline char * task_sig(struct task_struct *p, char *buffer)
|
static inline char * task_sig(struct task_struct *p, char *buffer)
|
{
|
{
|
buffer += sprintf(buffer,
|
buffer += sprintf(buffer,
|
"SigPnd:\t%08lx\n"
|
"SigPnd:\t%08lx\n"
|
"SigBlk:\t%08lx\n",
|
"SigBlk:\t%08lx\n",
|
p->signal, p->blocked);
|
p->signal, p->blocked);
|
if (p->sig) {
|
if (p->sig) {
|
struct sigaction * action = p->sig->action;
|
struct sigaction * action = p->sig->action;
|
unsigned long sig_ign = 0, sig_caught = 0;
|
unsigned long sig_ign = 0, sig_caught = 0;
|
unsigned long bit = 1;
|
unsigned long bit = 1;
|
int i;
|
int i;
|
|
|
for (i = 0; i < 32; i++) {
|
for (i = 0; i < 32; i++) {
|
switch((unsigned long) action->sa_handler) {
|
switch((unsigned long) action->sa_handler) {
|
case 0:
|
case 0:
|
break;
|
break;
|
case 1:
|
case 1:
|
sig_ign |= bit;
|
sig_ign |= bit;
|
break;
|
break;
|
default:
|
default:
|
sig_caught |= bit;
|
sig_caught |= bit;
|
}
|
}
|
bit <<= 1;
|
bit <<= 1;
|
action++;
|
action++;
|
}
|
}
|
|
|
buffer += sprintf(buffer,
|
buffer += sprintf(buffer,
|
"SigIgn:\t%08lx\n"
|
"SigIgn:\t%08lx\n"
|
"SigCgt:\t%08lx\n",
|
"SigCgt:\t%08lx\n",
|
sig_ign, sig_caught);
|
sig_ign, sig_caught);
|
}
|
}
|
return buffer;
|
return buffer;
|
}
|
}
|
|
|
static int get_status(int pid, char * buffer)
|
static int get_status(int pid, char * buffer)
|
{
|
{
|
char * orig = buffer;
|
char * orig = buffer;
|
struct task_struct ** p = get_task(pid), *tsk;
|
struct task_struct ** p = get_task(pid), *tsk;
|
|
|
if (!p || (tsk = *p) == NULL)
|
if (!p || (tsk = *p) == NULL)
|
return 0;
|
return 0;
|
buffer = task_name(tsk, buffer);
|
buffer = task_name(tsk, buffer);
|
buffer = task_state(tsk, buffer);
|
buffer = task_state(tsk, buffer);
|
buffer = task_mem(tsk, buffer);
|
buffer = task_mem(tsk, buffer);
|
buffer = task_sig(tsk, buffer);
|
buffer = task_sig(tsk, buffer);
|
return buffer - orig;
|
return buffer - orig;
|
}
|
}
|
|
|
static int get_stat(int pid, char * buffer)
|
static int get_stat(int pid, char * buffer)
|
{
|
{
|
struct task_struct ** p = get_task(pid), *tsk;
|
struct task_struct ** p = get_task(pid), *tsk;
|
unsigned long sigignore=0, sigcatch=0, wchan;
|
unsigned long sigignore=0, sigcatch=0, wchan;
|
unsigned long vsize, eip, esp;
|
unsigned long vsize, eip, esp;
|
long priority, nice;
|
long priority, nice;
|
int i,tty_pgrp;
|
int i,tty_pgrp;
|
char state;
|
char state;
|
|
|
if (!p || (tsk = *p) == NULL)
|
if (!p || (tsk = *p) == NULL)
|
return 0;
|
return 0;
|
if (tsk->state < 0 || tsk->state > 5)
|
if (tsk->state < 0 || tsk->state > 5)
|
state = '.';
|
state = '.';
|
else
|
else
|
state = "RSDZTW"[tsk->state];
|
state = "RSDZTW"[tsk->state];
|
vsize = eip = esp = 0;
|
vsize = eip = esp = 0;
|
if (tsk->mm && tsk->mm != &init_mm) {
|
if (tsk->mm && tsk->mm != &init_mm) {
|
#ifndef NO_MM
|
#ifndef NO_MM
|
struct vm_area_struct *vma = tsk->mm->mmap;
|
struct vm_area_struct *vma = tsk->mm->mmap;
|
while (vma) {
|
while (vma) {
|
vsize += vma->vm_end - vma->vm_start;
|
vsize += vma->vm_end - vma->vm_start;
|
vma = vma->vm_next;
|
vma = vma->vm_next;
|
}
|
}
|
if (tsk->kernel_stack_page) {
|
if (tsk->kernel_stack_page) {
|
eip = KSTK_EIP(tsk);
|
eip = KSTK_EIP(tsk);
|
esp = KSTK_ESP(tsk);
|
esp = KSTK_ESP(tsk);
|
}
|
}
|
#endif /* !NO_MM */
|
#endif /* !NO_MM */
|
}
|
}
|
wchan = get_wchan(tsk);
|
wchan = get_wchan(tsk);
|
if (tsk->sig) {
|
if (tsk->sig) {
|
unsigned long bit = 1;
|
unsigned long bit = 1;
|
for(i=0; i<32; ++i) {
|
for(i=0; i<32; ++i) {
|
switch((unsigned long) tsk->sig->action[i].sa_handler) {
|
switch((unsigned long) tsk->sig->action[i].sa_handler) {
|
case 0:
|
case 0:
|
break;
|
break;
|
case 1:
|
case 1:
|
sigignore |= bit;
|
sigignore |= bit;
|
break;
|
break;
|
default:
|
default:
|
sigcatch |= bit;
|
sigcatch |= bit;
|
}
|
}
|
bit <<= 1;
|
bit <<= 1;
|
}
|
}
|
}
|
}
|
if (tsk->tty)
|
if (tsk->tty)
|
tty_pgrp = tsk->tty->pgrp;
|
tty_pgrp = tsk->tty->pgrp;
|
else
|
else
|
tty_pgrp = -1;
|
tty_pgrp = -1;
|
|
|
/* scale priority and nice values from timeslices to -20..20 */
|
/* scale priority and nice values from timeslices to -20..20 */
|
/* to make it look like a "normal" unix priority/nice value */
|
/* to make it look like a "normal" unix priority/nice value */
|
priority = tsk->counter;
|
priority = tsk->counter;
|
priority = 20 - (priority * 10 + DEF_PRIORITY / 2) / DEF_PRIORITY;
|
priority = 20 - (priority * 10 + DEF_PRIORITY / 2) / DEF_PRIORITY;
|
nice = tsk->priority;
|
nice = tsk->priority;
|
nice = 20 - (nice * 20 + DEF_PRIORITY / 2) / DEF_PRIORITY;
|
nice = 20 - (nice * 20 + DEF_PRIORITY / 2) / DEF_PRIORITY;
|
|
|
return sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
|
return sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
|
%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %lu %lu %ld %lu %lu %lu %lu %lu \
|
%lu %lu %lu %lu %lu %ld %ld %ld %ld %ld %ld %lu %lu %ld %lu %lu %lu %lu %lu \
|
%lu %lu %lu %lu %lu %lu %lu %lu\n",
|
%lu %lu %lu %lu %lu %lu %lu %lu\n",
|
pid,
|
pid,
|
tsk->comm,
|
tsk->comm,
|
state,
|
state,
|
tsk->p_pptr->pid,
|
tsk->p_pptr->pid,
|
tsk->pgrp,
|
tsk->pgrp,
|
tsk->session,
|
tsk->session,
|
tsk->tty ? kdev_t_to_nr(tsk->tty->device) : 0,
|
tsk->tty ? kdev_t_to_nr(tsk->tty->device) : 0,
|
tty_pgrp,
|
tty_pgrp,
|
tsk->flags,
|
tsk->flags,
|
tsk->min_flt,
|
tsk->min_flt,
|
tsk->cmin_flt,
|
tsk->cmin_flt,
|
tsk->maj_flt,
|
tsk->maj_flt,
|
tsk->cmaj_flt,
|
tsk->cmaj_flt,
|
tsk->utime,
|
tsk->utime,
|
tsk->stime,
|
tsk->stime,
|
tsk->cutime,
|
tsk->cutime,
|
tsk->cstime,
|
tsk->cstime,
|
priority,
|
priority,
|
nice,
|
nice,
|
tsk->timeout,
|
tsk->timeout,
|
tsk->it_real_value,
|
tsk->it_real_value,
|
tsk->start_time,
|
tsk->start_time,
|
vsize,
|
vsize,
|
tsk->mm ? tsk->mm->rss : 0, /* you might want to shift this left 3 */
|
tsk->mm ? tsk->mm->rss : 0, /* you might want to shift this left 3 */
|
tsk->rlim ? tsk->rlim[RLIMIT_RSS].rlim_cur : 0,
|
tsk->rlim ? tsk->rlim[RLIMIT_RSS].rlim_cur : 0,
|
tsk->mm ? tsk->mm->start_code : 0,
|
tsk->mm ? tsk->mm->start_code : 0,
|
tsk->mm ? tsk->mm->end_code : 0,
|
tsk->mm ? tsk->mm->end_code : 0,
|
tsk->mm ? tsk->mm->start_stack : 0,
|
tsk->mm ? tsk->mm->start_stack : 0,
|
esp,
|
esp,
|
eip,
|
eip,
|
tsk->signal,
|
tsk->signal,
|
tsk->blocked,
|
tsk->blocked,
|
sigignore,
|
sigignore,
|
sigcatch,
|
sigcatch,
|
wchan,
|
wchan,
|
tsk->nswap,
|
tsk->nswap,
|
tsk->cnswap);
|
tsk->cnswap);
|
}
|
}
|
|
|
#ifndef NO_MM
|
#ifndef NO_MM
|
static inline void statm_pte_range(pmd_t * pmd, unsigned long address, unsigned long size,
|
static inline void statm_pte_range(pmd_t * pmd, unsigned long address, unsigned long size,
|
int * pages, int * shared, int * dirty, int * total)
|
int * pages, int * shared, int * dirty, int * total)
|
{
|
{
|
pte_t * pte;
|
pte_t * pte;
|
unsigned long end;
|
unsigned long end;
|
|
|
if (pmd_none(*pmd))
|
if (pmd_none(*pmd))
|
return;
|
return;
|
if (pmd_bad(*pmd)) {
|
if (pmd_bad(*pmd)) {
|
printk("statm_pte_range: bad pmd (%08lx)\n", pmd_val(*pmd));
|
printk("statm_pte_range: bad pmd (%08lx)\n", pmd_val(*pmd));
|
pmd_clear(pmd);
|
pmd_clear(pmd);
|
return;
|
return;
|
}
|
}
|
pte = pte_offset(pmd, address);
|
pte = pte_offset(pmd, address);
|
address &= ~PMD_MASK;
|
address &= ~PMD_MASK;
|
end = address + size;
|
end = address + size;
|
if (end > PMD_SIZE)
|
if (end > PMD_SIZE)
|
end = PMD_SIZE;
|
end = PMD_SIZE;
|
do {
|
do {
|
pte_t page = *pte;
|
pte_t page = *pte;
|
|
|
address += PAGE_SIZE;
|
address += PAGE_SIZE;
|
pte++;
|
pte++;
|
if (pte_none(page))
|
if (pte_none(page))
|
continue;
|
continue;
|
++*total;
|
++*total;
|
if (!pte_present(page))
|
if (!pte_present(page))
|
continue;
|
continue;
|
++*pages;
|
++*pages;
|
if (pte_dirty(page))
|
if (pte_dirty(page))
|
++*dirty;
|
++*dirty;
|
if (pte_page(page) >= high_memory)
|
if (pte_page(page) >= high_memory)
|
continue;
|
continue;
|
if (mem_map[MAP_NR(pte_page(page))].count > 1)
|
if (mem_map[MAP_NR(pte_page(page))].count > 1)
|
++*shared;
|
++*shared;
|
} while (address < end);
|
} while (address < end);
|
}
|
}
|
|
|
static inline void statm_pmd_range(pgd_t * pgd, unsigned long address, unsigned long size,
|
static inline void statm_pmd_range(pgd_t * pgd, unsigned long address, unsigned long size,
|
int * pages, int * shared, int * dirty, int * total)
|
int * pages, int * shared, int * dirty, int * total)
|
{
|
{
|
pmd_t * pmd;
|
pmd_t * pmd;
|
unsigned long end;
|
unsigned long end;
|
|
|
if (pgd_none(*pgd))
|
if (pgd_none(*pgd))
|
return;
|
return;
|
if (pgd_bad(*pgd)) {
|
if (pgd_bad(*pgd)) {
|
printk("statm_pmd_range: bad pgd (%08lx)\n", pgd_val(*pgd));
|
printk("statm_pmd_range: bad pgd (%08lx)\n", pgd_val(*pgd));
|
pgd_clear(pgd);
|
pgd_clear(pgd);
|
return;
|
return;
|
}
|
}
|
pmd = pmd_offset(pgd, address);
|
pmd = pmd_offset(pgd, address);
|
address &= ~PGDIR_MASK;
|
address &= ~PGDIR_MASK;
|
end = address + size;
|
end = address + size;
|
if (end > PGDIR_SIZE)
|
if (end > PGDIR_SIZE)
|
end = PGDIR_SIZE;
|
end = PGDIR_SIZE;
|
do {
|
do {
|
statm_pte_range(pmd, address, end - address, pages, shared, dirty, total);
|
statm_pte_range(pmd, address, end - address, pages, shared, dirty, total);
|
address = (address + PMD_SIZE) & PMD_MASK;
|
address = (address + PMD_SIZE) & PMD_MASK;
|
pmd++;
|
pmd++;
|
} while (address < end);
|
} while (address < end);
|
}
|
}
|
|
|
static void statm_pgd_range(pgd_t * pgd, unsigned long address, unsigned long end,
|
static void statm_pgd_range(pgd_t * pgd, unsigned long address, unsigned long end,
|
int * pages, int * shared, int * dirty, int * total)
|
int * pages, int * shared, int * dirty, int * total)
|
{
|
{
|
while (address < end) {
|
while (address < end) {
|
statm_pmd_range(pgd, address, end - address, pages, shared, dirty, total);
|
statm_pmd_range(pgd, address, end - address, pages, shared, dirty, total);
|
address = (address + PGDIR_SIZE) & PGDIR_MASK;
|
address = (address + PGDIR_SIZE) & PGDIR_MASK;
|
pgd++;
|
pgd++;
|
}
|
}
|
}
|
}
|
|
|
static int get_statm(int pid, char * buffer)
|
static int get_statm(int pid, char * buffer)
|
{
|
{
|
struct task_struct ** p = get_task(pid), *tsk;
|
struct task_struct ** p = get_task(pid), *tsk;
|
int size=0, resident=0, share=0, trs=0, lrs=0, drs=0, dt=0;
|
int size=0, resident=0, share=0, trs=0, lrs=0, drs=0, dt=0;
|
|
|
if (!p || (tsk = *p) == NULL)
|
if (!p || (tsk = *p) == NULL)
|
return 0;
|
return 0;
|
if (tsk->mm && tsk->mm != &init_mm) {
|
if (tsk->mm && tsk->mm != &init_mm) {
|
struct vm_area_struct * vma = tsk->mm->mmap;
|
struct vm_area_struct * vma = tsk->mm->mmap;
|
|
|
while (vma) {
|
while (vma) {
|
pgd_t *pgd = pgd_offset(tsk->mm, vma->vm_start);
|
pgd_t *pgd = pgd_offset(tsk->mm, vma->vm_start);
|
int pages = 0, shared = 0, dirty = 0, total = 0;
|
int pages = 0, shared = 0, dirty = 0, total = 0;
|
|
|
statm_pgd_range(pgd, vma->vm_start, vma->vm_end, &pages, &shared, &dirty, &total);
|
statm_pgd_range(pgd, vma->vm_start, vma->vm_end, &pages, &shared, &dirty, &total);
|
resident += pages;
|
resident += pages;
|
share += shared;
|
share += shared;
|
dt += dirty;
|
dt += dirty;
|
size += total;
|
size += total;
|
if (vma->vm_flags & VM_EXECUTABLE)
|
if (vma->vm_flags & VM_EXECUTABLE)
|
trs += pages; /* text */
|
trs += pages; /* text */
|
else if (vma->vm_flags & VM_GROWSDOWN)
|
else if (vma->vm_flags & VM_GROWSDOWN)
|
drs += pages; /* stack */
|
drs += pages; /* stack */
|
else if (vma->vm_end > 0x60000000)
|
else if (vma->vm_end > 0x60000000)
|
lrs += pages; /* library */
|
lrs += pages; /* library */
|
else
|
else
|
drs += pages;
|
drs += pages;
|
vma = vma->vm_next;
|
vma = vma->vm_next;
|
}
|
}
|
}
|
}
|
return sprintf(buffer,"%d %d %d %d %d %d %d\n",
|
return sprintf(buffer,"%d %d %d %d %d %d %d\n",
|
size, resident, share, trs, lrs, drs, dt);
|
size, resident, share, trs, lrs, drs, dt);
|
}
|
}
|
|
|
/*
|
/*
|
* The way we support synthetic files > 4K
|
* The way we support synthetic files > 4K
|
* - without storing their contents in some buffer and
|
* - without storing their contents in some buffer and
|
* - without walking through the entire synthetic file until we reach the
|
* - without walking through the entire synthetic file until we reach the
|
* position of the requested data
|
* position of the requested data
|
* is to cleverly encode the current position in the file's f_pos field.
|
* is to cleverly encode the current position in the file's f_pos field.
|
* There is no requirement that a read() call which returns `count' bytes
|
* There is no requirement that a read() call which returns `count' bytes
|
* of data increases f_pos by exactly `count'.
|
* of data increases f_pos by exactly `count'.
|
*
|
*
|
* This idea is Linus' one. Bruno implemented it.
|
* This idea is Linus' one. Bruno implemented it.
|
*/
|
*/
|
|
|
/*
|
/*
|
* For the /proc/<pid>/maps file, we use fixed length records, each containing
|
* For the /proc/<pid>/maps file, we use fixed length records, each containing
|
* a single line.
|
* a single line.
|
*/
|
*/
|
#define MAPS_LINE_LENGTH 1024
|
#define MAPS_LINE_LENGTH 1024
|
#define MAPS_LINE_SHIFT 10
|
#define MAPS_LINE_SHIFT 10
|
/*
|
/*
|
* f_pos = (number of the vma in the task->mm->mmap list) * MAPS_LINE_LENGTH
|
* f_pos = (number of the vma in the task->mm->mmap list) * MAPS_LINE_LENGTH
|
* + (index into the line)
|
* + (index into the line)
|
*/
|
*/
|
/* for systems with sizeof(void*) == 4: */
|
/* for systems with sizeof(void*) == 4: */
|
#define MAPS_LINE_FORMAT4 "%08lx-%08lx %s %08lx %s %lu\n"
|
#define MAPS_LINE_FORMAT4 "%08lx-%08lx %s %08lx %s %lu\n"
|
#define MAPS_LINE_MAX4 49 /* sum of 8 1 8 1 4 1 8 1 5 1 10 1 */
|
#define MAPS_LINE_MAX4 49 /* sum of 8 1 8 1 4 1 8 1 5 1 10 1 */
|
|
|
/* for systems with sizeof(void*) == 8: */
|
/* for systems with sizeof(void*) == 8: */
|
#define MAPS_LINE_FORMAT8 "%016lx-%016lx %s %016lx %s %lu\n"
|
#define MAPS_LINE_FORMAT8 "%016lx-%016lx %s %016lx %s %lu\n"
|
#define MAPS_LINE_MAX8 73 /* sum of 16 1 16 1 4 1 16 1 5 1 10 1 */
|
#define MAPS_LINE_MAX8 73 /* sum of 16 1 16 1 4 1 16 1 5 1 10 1 */
|
|
|
#define MAPS_LINE_MAX MAPS_LINE_MAX8
|
#define MAPS_LINE_MAX MAPS_LINE_MAX8
|
|
|
|
|
static int read_maps (int pid, struct file * file, char * buf, int count)
|
static int read_maps (int pid, struct file * file, char * buf, int count)
|
{
|
{
|
struct task_struct ** p = get_task(pid);
|
struct task_struct ** p = get_task(pid);
|
char * destptr;
|
char * destptr;
|
loff_t lineno;
|
loff_t lineno;
|
int column;
|
int column;
|
struct vm_area_struct * map;
|
struct vm_area_struct * map;
|
int i;
|
int i;
|
|
|
if (!p || !*p)
|
if (!p || !*p)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
if (!(*p)->mm || (*p)->mm == &init_mm || count == 0)
|
if (!(*p)->mm || (*p)->mm == &init_mm || count == 0)
|
return 0;
|
return 0;
|
|
|
/* decode f_pos */
|
/* decode f_pos */
|
lineno = file->f_pos >> MAPS_LINE_SHIFT;
|
lineno = file->f_pos >> MAPS_LINE_SHIFT;
|
column = file->f_pos & (MAPS_LINE_LENGTH-1);
|
column = file->f_pos & (MAPS_LINE_LENGTH-1);
|
|
|
/* quickly go to line lineno */
|
/* quickly go to line lineno */
|
for (map = (*p)->mm->mmap, i = 0; map && (i < lineno); map = map->vm_next, i++)
|
for (map = (*p)->mm->mmap, i = 0; map && (i < lineno); map = map->vm_next, i++)
|
continue;
|
continue;
|
|
|
destptr = buf;
|
destptr = buf;
|
|
|
for ( ; map ; ) {
|
for ( ; map ; ) {
|
/* produce the next line */
|
/* produce the next line */
|
char line[MAPS_LINE_MAX+1];
|
char line[MAPS_LINE_MAX+1];
|
char str[5], *cp = str;
|
char str[5], *cp = str;
|
int flags;
|
int flags;
|
kdev_t dev;
|
kdev_t dev;
|
unsigned long ino;
|
unsigned long ino;
|
int len;
|
int len;
|
|
|
flags = map->vm_flags;
|
flags = map->vm_flags;
|
|
|
*cp++ = flags & VM_READ ? 'r' : '-';
|
*cp++ = flags & VM_READ ? 'r' : '-';
|
*cp++ = flags & VM_WRITE ? 'w' : '-';
|
*cp++ = flags & VM_WRITE ? 'w' : '-';
|
*cp++ = flags & VM_EXEC ? 'x' : '-';
|
*cp++ = flags & VM_EXEC ? 'x' : '-';
|
*cp++ = flags & VM_MAYSHARE ? 's' : 'p';
|
*cp++ = flags & VM_MAYSHARE ? 's' : 'p';
|
*cp++ = 0;
|
*cp++ = 0;
|
|
|
if (map->vm_inode != NULL) {
|
if (map->vm_inode != NULL) {
|
dev = map->vm_inode->i_dev;
|
dev = map->vm_inode->i_dev;
|
ino = map->vm_inode->i_ino;
|
ino = map->vm_inode->i_ino;
|
} else {
|
} else {
|
dev = 0;
|
dev = 0;
|
ino = 0;
|
ino = 0;
|
}
|
}
|
|
|
len = sprintf(line,
|
len = sprintf(line,
|
sizeof(void*) == 4 ? MAPS_LINE_FORMAT4 : MAPS_LINE_FORMAT8,
|
sizeof(void*) == 4 ? MAPS_LINE_FORMAT4 : MAPS_LINE_FORMAT8,
|
map->vm_start, map->vm_end, str, map->vm_offset,
|
map->vm_start, map->vm_end, str, map->vm_offset,
|
kdevname(dev), ino);
|
kdevname(dev), ino);
|
|
|
if (column >= len) {
|
if (column >= len) {
|
column = 0; /* continue with next line at column 0 */
|
column = 0; /* continue with next line at column 0 */
|
lineno++;
|
lineno++;
|
map = map->vm_next;
|
map = map->vm_next;
|
continue;
|
continue;
|
}
|
}
|
|
|
i = len-column;
|
i = len-column;
|
if (i > count)
|
if (i > count)
|
i = count;
|
i = count;
|
memcpy_tofs(destptr, line+column, i);
|
memcpy_tofs(destptr, line+column, i);
|
destptr += i; count -= i;
|
destptr += i; count -= i;
|
column += i;
|
column += i;
|
if (column >= len) {
|
if (column >= len) {
|
column = 0; /* next time: next line at column 0 */
|
column = 0; /* next time: next line at column 0 */
|
lineno++;
|
lineno++;
|
map = map->vm_next;
|
map = map->vm_next;
|
}
|
}
|
|
|
/* done? */
|
/* done? */
|
if (count == 0)
|
if (count == 0)
|
break;
|
break;
|
|
|
/* By writing to user space, we might have slept.
|
/* By writing to user space, we might have slept.
|
* Stop the loop, to avoid a race condition.
|
* Stop the loop, to avoid a race condition.
|
*/
|
*/
|
if (*p != current)
|
if (*p != current)
|
break;
|
break;
|
}
|
}
|
|
|
/* encode f_pos */
|
/* encode f_pos */
|
file->f_pos = (lineno << MAPS_LINE_SHIFT) + column;
|
file->f_pos = (lineno << MAPS_LINE_SHIFT) + column;
|
|
|
return destptr-buf;
|
return destptr-buf;
|
}
|
}
|
#endif /* !NO_MM */
|
#endif /* !NO_MM */
|
|
|
#ifdef CONFIG_MODULES
|
#ifdef CONFIG_MODULES
|
extern int get_module_list(char *);
|
extern int get_module_list(char *);
|
extern int get_ksyms_list(char *, char **, off_t, int);
|
extern int get_ksyms_list(char *, char **, off_t, int);
|
#endif
|
#endif
|
extern int get_device_list(char *);
|
extern int get_device_list(char *);
|
extern int get_filesystem_list(char *);
|
extern int get_filesystem_list(char *);
|
extern int get_filesystem_info( char * );
|
extern int get_filesystem_info( char * );
|
extern int get_irq_list(char *);
|
extern int get_irq_list(char *);
|
extern int get_serialinfo(char *);
|
extern int get_serialinfo(char *);
|
extern int get_dma_list(char *);
|
extern int get_dma_list(char *);
|
extern int get_cpuinfo(char *);
|
extern int get_cpuinfo(char *);
|
extern int get_pci_list(char*);
|
extern int get_pci_list(char*);
|
extern int get_md_status (char *);
|
extern int get_md_status (char *);
|
extern int get_rtc_status (char *);
|
extern int get_rtc_status (char *);
|
extern int get_locks_status (char *, char **, off_t, int);
|
extern int get_locks_status (char *, char **, off_t, int);
|
#ifdef __SMP_PROF__
|
#ifdef __SMP_PROF__
|
extern int get_smp_prof_list(char *);
|
extern int get_smp_prof_list(char *);
|
#endif
|
#endif
|
|
|
static int get_root_array(char * page, int type, char **start, off_t offset, int length)
|
static int get_root_array(char * page, int type, char **start, off_t offset, int length)
|
{
|
{
|
switch (type) {
|
switch (type) {
|
case PROC_LOADAVG:
|
case PROC_LOADAVG:
|
return get_loadavg(page);
|
return get_loadavg(page);
|
|
|
case PROC_UPTIME:
|
case PROC_UPTIME:
|
return get_uptime(page);
|
return get_uptime(page);
|
|
|
case PROC_MEMINFO:
|
case PROC_MEMINFO:
|
return get_meminfo(page);
|
return get_meminfo(page);
|
|
|
#ifdef CONFIG_PCI
|
#ifdef CONFIG_PCI
|
case PROC_PCI:
|
case PROC_PCI:
|
return get_pci_list(page);
|
return get_pci_list(page);
|
#endif
|
#endif
|
|
|
case PROC_CPUINFO:
|
case PROC_CPUINFO:
|
return get_cpuinfo(page);
|
return get_cpuinfo(page);
|
|
|
case PROC_VERSION:
|
case PROC_VERSION:
|
return get_version(page);
|
return get_version(page);
|
|
|
#ifdef CONFIG_DEBUG_MALLOC
|
#ifdef CONFIG_DEBUG_MALLOC
|
case PROC_MALLOC:
|
case PROC_MALLOC:
|
return get_malloc(page);
|
return get_malloc(page);
|
#endif
|
#endif
|
|
|
#ifdef CONFIG_MODULES
|
#ifdef CONFIG_MODULES
|
case PROC_MODULES:
|
case PROC_MODULES:
|
return get_module_list(page);
|
return get_module_list(page);
|
|
|
case PROC_KSYMS:
|
case PROC_KSYMS:
|
return get_ksyms_list(page, start, offset, length);
|
return get_ksyms_list(page, start, offset, length);
|
#endif
|
#endif
|
|
|
case PROC_STAT:
|
case PROC_STAT:
|
return get_kstat(page);
|
return get_kstat(page);
|
|
|
case PROC_DEVICES:
|
case PROC_DEVICES:
|
return get_device_list(page);
|
return get_device_list(page);
|
|
|
case PROC_INTERRUPTS:
|
case PROC_INTERRUPTS:
|
return get_irq_list(page);
|
return get_irq_list(page);
|
|
|
case PROC_SERIAL:
|
case PROC_SERIAL:
|
return get_serialinfo(page);
|
return get_serialinfo(page);
|
|
|
case PROC_FILESYSTEMS:
|
case PROC_FILESYSTEMS:
|
return get_filesystem_list(page);
|
return get_filesystem_list(page);
|
|
|
case PROC_DMA:
|
case PROC_DMA:
|
return get_dma_list(page);
|
return get_dma_list(page);
|
|
|
case PROC_IOPORTS:
|
case PROC_IOPORTS:
|
return get_ioport_list(page);
|
return get_ioport_list(page);
|
#ifdef CONFIG_BLK_DEV_MD
|
#ifdef CONFIG_BLK_DEV_MD
|
case PROC_MD:
|
case PROC_MD:
|
return get_md_status(page);
|
return get_md_status(page);
|
#endif
|
#endif
|
#ifdef __SMP_PROF__
|
#ifdef __SMP_PROF__
|
case PROC_SMP_PROF:
|
case PROC_SMP_PROF:
|
return get_smp_prof_list(page);
|
return get_smp_prof_list(page);
|
#endif
|
#endif
|
case PROC_CMDLINE:
|
case PROC_CMDLINE:
|
return get_cmdline(page);
|
return get_cmdline(page);
|
|
|
case PROC_MTAB:
|
case PROC_MTAB:
|
return get_filesystem_info( page );
|
return get_filesystem_info( page );
|
#ifdef CONFIG_RTC
|
#ifdef CONFIG_RTC
|
case PROC_RTC:
|
case PROC_RTC:
|
return get_rtc_status(page);
|
return get_rtc_status(page);
|
#endif
|
#endif
|
case PROC_LOCKS:
|
case PROC_LOCKS:
|
return get_locks_status(page, start, offset, length);
|
return get_locks_status(page, start, offset, length);
|
}
|
}
|
return -EBADF;
|
return -EBADF;
|
}
|
}
|
|
|
static int process_unauthorized(int type, int pid)
|
static int process_unauthorized(int type, int pid)
|
{
|
{
|
struct task_struct ** p = get_task(pid);
|
struct task_struct ** p = get_task(pid);
|
|
|
if (!p || !*p || !(*p)->mm)
|
if (!p || !*p || !(*p)->mm)
|
return 1;
|
return 1;
|
|
|
switch(type)
|
switch(type)
|
{
|
{
|
case PROC_PID_STATUS:
|
case PROC_PID_STATUS:
|
case PROC_PID_STAT:
|
case PROC_PID_STAT:
|
case PROC_PID_CMDLINE:
|
case PROC_PID_CMDLINE:
|
#ifndef NO_MM
|
#ifndef NO_MM
|
case PROC_PID_STATM:
|
case PROC_PID_STATM:
|
case PROC_PID_MAPS:
|
case PROC_PID_MAPS:
|
#endif
|
#endif
|
return 0;
|
return 0;
|
}
|
}
|
if(suser() || current->fsuid == (*p)->euid)
|
if(suser() || current->fsuid == (*p)->euid)
|
return 0;
|
return 0;
|
return 1;
|
return 1;
|
}
|
}
|
|
|
|
|
static int get_process_array(char * page, int pid, int type)
|
static int get_process_array(char * page, int pid, int type)
|
{
|
{
|
switch (type) {
|
switch (type) {
|
case PROC_PID_STATUS:
|
case PROC_PID_STATUS:
|
return get_status(pid, page);
|
return get_status(pid, page);
|
case PROC_PID_ENVIRON:
|
case PROC_PID_ENVIRON:
|
return get_env(pid, page);
|
return get_env(pid, page);
|
case PROC_PID_CMDLINE:
|
case PROC_PID_CMDLINE:
|
return get_arg(pid, page);
|
return get_arg(pid, page);
|
case PROC_PID_STAT:
|
case PROC_PID_STAT:
|
return get_stat(pid, page);
|
return get_stat(pid, page);
|
#ifndef NO_MM
|
#ifndef NO_MM
|
case PROC_PID_STATM:
|
case PROC_PID_STATM:
|
return get_statm(pid, page);
|
return get_statm(pid, page);
|
#endif /* !NO_MM */
|
#endif /* !NO_MM */
|
}
|
}
|
return -EBADF;
|
return -EBADF;
|
}
|
}
|
|
|
|
|
static inline int fill_array(char * page, int pid, int type, char **start, off_t offset, int length)
|
static inline int fill_array(char * page, int pid, int type, char **start, off_t offset, int length)
|
{
|
{
|
if (pid)
|
if (pid)
|
return get_process_array(page, pid, type);
|
return get_process_array(page, pid, type);
|
return get_root_array(page, type, start, offset, length);
|
return get_root_array(page, type, start, offset, length);
|
}
|
}
|
|
|
#define PROC_BLOCK_SIZE (3*1024) /* 4K page size but our output routines use some slack for overruns */
|
#define PROC_BLOCK_SIZE (3*1024) /* 4K page size but our output routines use some slack for overruns */
|
|
|
static int array_read(struct inode * inode, struct file * file,char * buf, int count)
|
static int array_read(struct inode * inode, struct file * file,char * buf, int count)
|
{
|
{
|
unsigned long page;
|
unsigned long page;
|
char *start;
|
char *start;
|
int length;
|
int length;
|
int end;
|
int end;
|
unsigned int type, pid;
|
unsigned int type, pid;
|
struct proc_dir_entry *dp;
|
struct proc_dir_entry *dp;
|
|
|
if (count < 0)
|
if (count < 0)
|
return -EINVAL;
|
return -EINVAL;
|
if (count > PROC_BLOCK_SIZE)
|
if (count > PROC_BLOCK_SIZE)
|
count = PROC_BLOCK_SIZE;
|
count = PROC_BLOCK_SIZE;
|
if (!(page = __get_free_page(GFP_KERNEL)))
|
if (!(page = __get_free_page(GFP_KERNEL)))
|
return -ENOMEM;
|
return -ENOMEM;
|
type = inode->i_ino;
|
type = inode->i_ino;
|
pid = type >> 16;
|
pid = type >> 16;
|
type &= 0x0000ffff;
|
type &= 0x0000ffff;
|
start = NULL;
|
start = NULL;
|
dp = (struct proc_dir_entry *) inode->u.generic_ip;
|
dp = (struct proc_dir_entry *) inode->u.generic_ip;
|
|
|
if (pid && process_unauthorized(type, pid))
|
if (pid && process_unauthorized(type, pid))
|
{
|
{
|
free_page(page);
|
free_page(page);
|
return -EIO;
|
return -EIO;
|
}
|
}
|
|
|
if (dp->get_info)
|
if (dp->get_info)
|
length = dp->get_info((char *)page, &start, file->f_pos,
|
length = dp->get_info((char *)page, &start, file->f_pos,
|
count, 0);
|
count, 0);
|
else
|
else
|
length = fill_array((char *) page, pid, type,
|
length = fill_array((char *) page, pid, type,
|
&start, file->f_pos, count);
|
&start, file->f_pos, count);
|
if (length < 0) {
|
if (length < 0) {
|
free_page(page);
|
free_page(page);
|
return length;
|
return length;
|
}
|
}
|
if (start != NULL) {
|
if (start != NULL) {
|
/* We have had block-adjusting processing! */
|
/* We have had block-adjusting processing! */
|
memcpy_tofs(buf, start, length);
|
memcpy_tofs(buf, start, length);
|
file->f_pos += length;
|
file->f_pos += length;
|
count = length;
|
count = length;
|
} else {
|
} else {
|
/* Static 4kB (or whatever) block capacity */
|
/* Static 4kB (or whatever) block capacity */
|
if (file->f_pos >= length) {
|
if (file->f_pos >= length) {
|
free_page(page);
|
free_page(page);
|
return 0;
|
return 0;
|
}
|
}
|
if (count + file->f_pos > length)
|
if (count + file->f_pos > length)
|
count = length - file->f_pos;
|
count = length - file->f_pos;
|
end = count + file->f_pos;
|
end = count + file->f_pos;
|
memcpy_tofs(buf, (char *) page + file->f_pos, count);
|
memcpy_tofs(buf, (char *) page + file->f_pos, count);
|
file->f_pos = end;
|
file->f_pos = end;
|
}
|
}
|
free_page(page);
|
free_page(page);
|
return count;
|
return count;
|
}
|
}
|
|
|
static struct file_operations proc_array_operations = {
|
static struct file_operations proc_array_operations = {
|
NULL, /* array_lseek */
|
NULL, /* array_lseek */
|
array_read,
|
array_read,
|
NULL, /* array_write */
|
NULL, /* array_write */
|
NULL, /* array_readdir */
|
NULL, /* array_readdir */
|
NULL, /* array_select */
|
NULL, /* array_select */
|
NULL, /* array_ioctl */
|
NULL, /* array_ioctl */
|
NULL, /* mmap */
|
NULL, /* mmap */
|
NULL, /* no special open code */
|
NULL, /* no special open code */
|
NULL, /* no special release code */
|
NULL, /* no special release code */
|
NULL /* can't fsync */
|
NULL /* can't fsync */
|
};
|
};
|
|
|
struct inode_operations proc_array_inode_operations = {
|
struct inode_operations proc_array_inode_operations = {
|
&proc_array_operations, /* default base directory file-ops */
|
&proc_array_operations, /* default base directory file-ops */
|
NULL, /* create */
|
NULL, /* create */
|
NULL, /* lookup */
|
NULL, /* lookup */
|
NULL, /* link */
|
NULL, /* link */
|
NULL, /* unlink */
|
NULL, /* unlink */
|
NULL, /* symlink */
|
NULL, /* symlink */
|
NULL, /* mkdir */
|
NULL, /* mkdir */
|
NULL, /* rmdir */
|
NULL, /* rmdir */
|
NULL, /* mknod */
|
NULL, /* mknod */
|
NULL, /* rename */
|
NULL, /* rename */
|
NULL, /* readlink */
|
NULL, /* readlink */
|
NULL, /* follow_link */
|
NULL, /* follow_link */
|
NULL, /* readpage */
|
NULL, /* readpage */
|
NULL, /* writepage */
|
NULL, /* writepage */
|
NULL, /* bmap */
|
NULL, /* bmap */
|
NULL, /* truncate */
|
NULL, /* truncate */
|
NULL /* permission */
|
NULL /* permission */
|
};
|
};
|
|
|
static int arraylong_read (struct inode * inode, struct file * file, char * buf, int count)
|
static int arraylong_read (struct inode * inode, struct file * file, char * buf, int count)
|
{
|
{
|
#ifndef NO_MM
|
#ifndef NO_MM
|
unsigned int pid = inode->i_ino >> 16;
|
unsigned int pid = inode->i_ino >> 16;
|
unsigned int type = inode->i_ino & 0x0000ffff;
|
unsigned int type = inode->i_ino & 0x0000ffff;
|
|
|
if (count < 0)
|
if (count < 0)
|
return -EINVAL;
|
return -EINVAL;
|
|
|
switch (type) {
|
switch (type) {
|
case PROC_PID_MAPS:
|
case PROC_PID_MAPS:
|
return read_maps(pid, file, buf, count);
|
return read_maps(pid, file, buf, count);
|
}
|
}
|
#endif /* !NO_MM */
|
#endif /* !NO_MM */
|
return -EINVAL;
|
return -EINVAL;
|
}
|
}
|
|
|
static struct file_operations proc_arraylong_operations = {
|
static struct file_operations proc_arraylong_operations = {
|
NULL, /* array_lseek */
|
NULL, /* array_lseek */
|
arraylong_read,
|
arraylong_read,
|
NULL, /* array_write */
|
NULL, /* array_write */
|
NULL, /* array_readdir */
|
NULL, /* array_readdir */
|
NULL, /* array_select */
|
NULL, /* array_select */
|
NULL, /* array_ioctl */
|
NULL, /* array_ioctl */
|
NULL, /* mmap */
|
NULL, /* mmap */
|
NULL, /* no special open code */
|
NULL, /* no special open code */
|
NULL, /* no special release code */
|
NULL, /* no special release code */
|
NULL /* can't fsync */
|
NULL /* can't fsync */
|
};
|
};
|
|
|
struct inode_operations proc_arraylong_inode_operations = {
|
struct inode_operations proc_arraylong_inode_operations = {
|
&proc_arraylong_operations, /* default base directory file-ops */
|
&proc_arraylong_operations, /* default base directory file-ops */
|
NULL, /* create */
|
NULL, /* create */
|
NULL, /* lookup */
|
NULL, /* lookup */
|
NULL, /* link */
|
NULL, /* link */
|
NULL, /* unlink */
|
NULL, /* unlink */
|
NULL, /* symlink */
|
NULL, /* symlink */
|
NULL, /* mkdir */
|
NULL, /* mkdir */
|
NULL, /* rmdir */
|
NULL, /* rmdir */
|
NULL, /* mknod */
|
NULL, /* mknod */
|
NULL, /* rename */
|
NULL, /* rename */
|
NULL, /* readlink */
|
NULL, /* readlink */
|
NULL, /* follow_link */
|
NULL, /* follow_link */
|
NULL, /* readpage */
|
NULL, /* readpage */
|
NULL, /* writepage */
|
NULL, /* writepage */
|
NULL, /* bmap */
|
NULL, /* bmap */
|
NULL, /* truncate */
|
NULL, /* truncate */
|
NULL /* permission */
|
NULL /* permission */
|
};
|
};
|
|
|
