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boinc/client/hostinfo_unix.C

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// Berkeley Open Infrastructure for Network Computing
// http://boinc.berkeley.edu
// Copyright (C) 2005 University of California
//
// This is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation;
// either version 2.1 of the License, or (at your option) any later version.
//
// This software is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// To view the GNU Lesser General Public License visit
// http://www.gnu.org/copyleft/lesser.html
// or write to the Free Software Foundation, Inc.,
// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "cpp.h"
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <sys/param.h>
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_VMMETER_H
#include <sys/vmmeter.h>
#endif
#include <sys/stat.h>
#if HAVE_SYS_SWAP_H
#include <sys/swap.h>
#endif
#if HAVE_SYS_SYSCTL_H
#include <sys/sysctl.h>
#endif
#if HAVE_SYS_SYSTEMINFO_H
#include <sys/systeminfo.h>
#endif
#if HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_UTMP_H
#include <utmp.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include "client_types.h"
#include "filesys.h"
#include "error_numbers.h"
#include "util.h"
#include "client_state.h"
#include "hostinfo_network.h"
using std::string;
// functions to get name/addr of local host
// Converts a int ip address to a string representation (i.e. "66.218.71.198")
//
#if 0
char* ip_addr_string(int ip_addr) {
in_addr ia;
ia.s_addr = ip_addr;
return inet_ntoa(ia);
}
#endif
// Returns the number of seconds difference from UTC
//
int get_timezone() {
tzset();
// TODO: take daylight savings time into account
#ifdef HAVE_STRUCT_TM_TM_ZONE
time_t cur_time;
struct tm *time_data;
cur_time = time(NULL);
time_data = localtime( &cur_time );
return time_data->tm_gmtoff;
#elif defined(linux)
return __timezone;
#elif defined(__CYGWIN32__)
return _timezone;
#elif defined(unix)
return timezone;
#else
#error timezone
#endif
return 0;
}
// Returns true if the host is currently running off battery power
// If you can't figure out, return false
//
// TODO: port this to other platforms (Windows, Mac OS X, others?)
//
bool HOST_INFO::host_is_running_on_batteries() {
#ifdef linux
bool retval = false;
FILE* fapm = fopen("/proc/apm", "r");
if (fapm) { // Then we're using APM! Yay.
char apm_driver_version[10];
int apm_major_version;
int apm_minor_version;
int apm_flags;
int apm_ac_line_status=1;
// Supposedly we're on batteries if the 5th entry is zero.
fscanf(fapm, "%10s %d.%d %x %x",
apm_driver_version,
&apm_major_version,
&apm_minor_version,
&apm_flags,
&apm_ac_line_status
);
retval = (apm_ac_line_status == 0);
fclose(fapm);
} else {
// we try ACPI
char buf[128];
char ac_state[64];
std::string ac_name;
FILE* facpi;
// we need to find the right ac adapter first
DirScanner dir("/proc/acpi/ac_adapter/");
while (dir.scan(ac_name)) {
if ((ac_name.c_str()==".")||(ac_name.c_str()=="..")) continue;
// newer ACPI versions use "state" as filename
sprintf(ac_state, "/proc/acpi/ac_adapter/%s/state", ac_name.c_str());
facpi = fopen(ac_state, "r");
if (!facpi) {
// older ACPI versions use "status" instead
sprintf(ac_state, "/proc/acpi/ac_adapter/%s/status", ac_name.c_str());
facpi = fopen(ac_state, "r");
}
if (facpi) {
fgets(buf, 128, facpi);
fclose(facpi);
// only valid state if it contains "state" (newer) or "Status" (older)
if ((strstr(buf, "state:") != NULL) || (strstr(buf, "Status:") != NULL)) {
// on batteries if ac adapter is "off-line" (or maybe "offline")
retval = (strstr(buf, "off") != NULL);
break;
}
}
}
}
return retval;
#else
return false;
#endif
}
#ifdef linux
#ifdef __mips__
void parse_cpuinfo(HOST_INFO& host) {
char buf[256];
char buf2[256];
int system_found=0,model_found=0;
strcpy(host.p_model, "MIPS ");
FILE* f = fopen("/proc/cpuinfo", "r");
if (!f) return;
while (fgets(buf, 256, f)) {
if ( (strstr(buf, "system type\t\t: ") == buf) &&
(system_found == 0) ) {
system_found = 1;
strncpy(host.p_vendor, strchr(buf, ':') + 2, sizeof(host.p_vendor)-1);
char * p = strchr(host.p_vendor, '\n');
if (p) {
*p = '\0';
}
}
if ( (strstr(buf, "cpu model\t\t: ") == buf) &&
(model_found == 0) ) {
model_found = 1;
strncpy(buf2, strchr(buf, ':') + 2, sizeof(host.p_model) - strlen(host.p_model) - 1);
strcat(host.p_model, buf2);
char * p = strchr(host.p_model, '\n');
if (p) {
*p = '\0';
}
}
}
fclose(f);
}
#elif __alpha__
void parse_cpuinfo(HOST_INFO& host) {
char buf[256];
char buf2[256];
int system_found=0,model_found=0;
strcpy(host.p_vendor, "HP (DEC) ");
FILE* f = fopen("/proc/cpuinfo", "r");
if (!f) return;
while (fgets(buf, 256, f)) {
if ((strstr(buf, "cpu\t\t\t: ") == buf) &&
(system_found == 0)
) {
system_found = 1;
strncpy(buf2, strchr(buf, ':') + 2, sizeof(host.p_vendor) - strlen(host.p_vendor) - 1);
strcat(host.p_vendor, buf2);
char * p = strchr(host.p_vendor, '\n');
if (p) {
*p = '\0';
}
}
if ( (strstr(buf, "cpu model\t\t: ") == buf) &&
(model_found == 0) ) {
model_found = 1;
strncpy(host.p_model, strchr(buf, ':') + 2,
sizeof(host.p_model)-1);
char * p = strchr(host.p_model, '\n');
if (p) {
*p = '\0';
}
}
}
fclose(f);
}
#else // not mips or alpha
// Unfortunately the format of /proc/cpuinfo is not standardized.
// See http://people.nl.linux.org/~hch/cpuinfo/ for some examples.
// The following is for Redhat Linux 2.2.14.
// TODO: get this to work on all platforms
//
void parse_cpuinfo(HOST_INFO& host) {
char buf[256];
int system_found=0,model_found=0,cache_found=0;
int n;
FILE* f = fopen("/proc/cpuinfo", "r");
if (!f) return;
while (fgets(buf, 256, f)) {
if ( (strstr(buf, "vendor_id\t: ") == buf) &&
(system_found == 0) ) {
system_found = 1;
strncpy(host.p_vendor, strchr(buf, ':') + 2, sizeof(host.p_vendor) - 1);
char * p = strchr(host.p_vendor, '\n');
if (p) {
*p = '\0';
}
}
if ( (strstr(buf, "model name\t: ") == buf) &&
(model_found == 0) ) {
model_found = 1;
strncpy(host.p_model, strchr(buf, ':') + 2, sizeof(host.p_model) - 1);
char * p = strchr(host.p_model, '\n');
if (p) {
*p = '\0';
}
}
if ( (strstr(buf, "cache size\t: ") == buf) &&
(cache_found == 0) ) {
cache_found = 1;
sscanf(buf, "cache size\t: %d", &n);
host.m_cache = n*1024;
}
}
fclose(f);
}
#endif // MIPS
#endif // linux
// get all relevant host information
//
int HOST_INFO::get_host_info() {
get_filesystem_info(d_total, d_free);
#ifdef linux
parse_cpuinfo(*this);
#else
#if HAVE_SYS_SYSCTL_H
int mib[2];
unsigned int mem_size;
size_t len;
// Get machine
mib[0] = CTL_HW;
mib[1] = HW_MACHINE;
len = sizeof(p_vendor);
sysctl(mib, 2, &p_vendor, &len, NULL, 0);
// Get model
mib[0] = CTL_HW;
mib[1] = HW_MODEL;
len = sizeof(p_model);
sysctl(mib, 2, &p_model, &len, NULL, 0);
#endif
#endif
#if defined(_SC_NPROCESSORS_ONLN)
p_ncpus = sysconf(_SC_NPROCESSORS_ONLN);
#elif defined(HAVE_SYS_SYSCTL_H) && defined(CTL_HW) && defined(HW_NCPU)
// Get number of CPUs
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
len = sizeof(p_ncpus);
sysctl(mib, 2, &p_ncpus, &len, NULL, 0);
#else
#error Need to specify a sysconf() define to obtain number of processors
#endif
/* There can be a variety of methods to obtain amount of
* usable memory. You will have to check your sysconf()
* defines, probably in unistd.h
* - 2002-11-03 hiram@users.sourceforge.net
*/
#if defined(_SC_USEABLE_MEMORY)
m_nbytes = (double)sysconf(_SC_PAGESIZE)
* (double)sysconf(_SC_USEABLE_MEMORY); /* UnixWare */
#elif defined(_SC_PHYS_PAGES)
m_nbytes = (double)sysconf(_SC_PAGESIZE)
* (double)sysconf(_SC_PHYS_PAGES); /* Linux */
#elif defined(HAVE_SYS_SYSCTL_H) && defined(CTL_HW) && defined(HW_PHYSMEM)
mib[0] = CTL_HW;
mib[1] = HW_PHYSMEM;
len = sizeof(mem_size);
sysctl(mib, 2, &mem_size, &len, NULL, 0); // Mac OS X
m_nbytes = mem_size;
#else
#error Need to specify a sysconf() define to obtain memory size
#endif
#if defined(HAVE_SYS_SWAP_H) && defined(SC_GETNSWP)
// Solaris, ...
char buf[256];
swaptbl_t* s;
int i, n;
n = swapctl(SC_GETNSWP, 0);
s = (swaptbl_t*)malloc(n*sizeof(swapent_t) + sizeof(struct swaptable));
for (i=0; i<n; i++) {
s->swt_ent[i].ste_path = buf;
}
s->swt_n = n;
n = swapctl(SC_LIST, s);
for (i=0; i<n; i++) {
m_swap += 512.*(double)s->swt_ent[i].ste_length;
}
#elif defined(HAVE__PROC_MEMINFO)
// Linux
FILE *fp;
if ((fp = fopen("/proc/meminfo", "r")) != 0) {
char minfo_buf[1024];
int n;
if ((n = fread(minfo_buf, sizeof(char), sizeof(minfo_buf)-1, fp))) {
char *p;
minfo_buf[n] = '\0';
if ((p = strstr(minfo_buf, "SwapTotal:"))) {
p += 10; // move past "SwapTotal:"
m_swap = 1024.*(double) strtoul(p, NULL, 10);
}
}
fclose(fp);
}
#elif defined(HAVE_VMMETER_H) && defined(HAVE_SYS_SYSCTL_H) && defined(CTL_USER) && defined(VM_METER)
// MacOSX, I think...
// <http://www.osxfaq.com/man/3/sysctl.ws>
struct vmtotal vm_info;
mib[0] = CTL_USER;
mib[1] = VM_METER;
len = sizeof(vm_info);
if (!sysctl(mib, 2, &vm_info, &len, NULL, 0)) {
m_swap = 1024. * getpagesize() * (double) vm_info.t_vm;
}
#else
#endif
#if defined(HAVE_SYS_SYSTEMINFO_H)
#if defined(SI_HW_SERIAL)
sysinfo(SI_HW_SERIAL, serialnum, sizeof(serialnum));
#else
//#error Need to specify a method to obtain serial num
#endif
#ifdef SI_PLATFORM
sysinfo(SI_PLATFORM, p_vendor, sizeof(p_vendor));
#endif
#ifdef SI_ISALIST
sysinfo(SI_ISALIST, p_model, sizeof(p_model));
for (unsigned int i=0; i<sizeof(p_model); i++) {
if (p_model[i]==' ') {
p_model[i]=0;
}
if (p_model[i]==0) {
i=sizeof(p_model);
}
}
#endif
#endif
get_local_network_info(
domain_name, sizeof(domain_name), ip_addr, sizeof(ip_addr)
);
timezone = get_timezone();
#ifdef HAVE_SYS_UTSNAME_H
struct utsname u;
uname(&u);
safe_strcpy(os_name, u.sysname);
safe_strcpy(os_version, u.release);
#elif defined(HAVE_SYS_SYSCTL_H) && defined(CTL_KERN) && defined(KERN_OSTYPE) && defined(KERN_OSRELEASE)
mib[0] = CTL_KERN;
mib[1] = KERN_OSTYPE;
len = sizeof(os_name);
sysctl(mib, 2, &os_name, &len, NULL, 0);
mib[0] = CTL_KERN;
mib[1] = KERN_OSRELEASE;
len = sizeof(os_version);
sysctl(mib, 2, &os_version, &len, NULL, 0);
#elif HAVE_SYS_SYSTEMINFO_H
sysinfo(SI_SYSNAME, os_name, sizeof(os_name));
sysinfo(SI_RELEASE, os_version, sizeof(os_version));
#else
#error Need to specify a method to obtain OS name/version
#endif
if (!strlen(host_cpid)) {
generate_host_cpid();
}
return 0;
}
// returns true iff device was last accessed before t
// or if an error occurred looking at the device.
inline bool device_idle(time_t t, char *device) {
struct stat sbuf;
return stat(device, &sbuf) || (sbuf.st_atime < t);
}
inline bool all_tty_idle(time_t t, char *device, char first_char, int num_tty) {
struct stat sbuf;
char *tty_index = device + strlen(device) - 1;
*tty_index = first_char;
for (int i = 0; i < num_tty; i++, (*tty_index)++) {
if (stat(device, &sbuf)) {
// error looking at device; don't try any more
return true;
} else if (sbuf.st_atime >= t) {
return false;
}
}
return true;
}
#ifdef HAVE_UTMP_H
inline bool user_idle(time_t t, struct utmp* u) {
char tty[5 + sizeof u->ut_line + 1] = "/dev/";
unsigned int i;
for (i=0; i < sizeof(u->ut_line); i++) {
// clean up tty if garbled
if (isalnum((int) u->ut_line[i]) || (u->ut_line[i]=='/')) {
tty[i+5] = u->ut_line[i];
} else {
tty[i+5] = '\0';
}
}
return device_idle(t, tty);
}
#if !defined(HAVE_SETUTENT) || !defined(HAVE_GETUTENT)
static FILE *ufp = NULL;
static struct utmp ut;
// get next user login record
// (this is defined on everything except BSD)
//
struct utmp *getutent() {
if (ufp == NULL) {
#if defined(UTMP_LOCATION)
if ((ufp = fopen(UTMP_LOCATION, "r")) == NULL) {
#elif defined(UTMP_FILE)
if ((ufp = fopen(UTMP_FILE, "r")) == NULL) {
#elif defined(_PATH_UTMP)
if ((ufp = fopen(_PATH_UTMP, "r")) == NULL) {
#else
if ((ufp = fopen("/etc/utmp", "r")) == NULL) {
#endif
return((struct utmp *)NULL);
}
}
do {
if (fread((char *)&ut, sizeof(ut), 1, ufp) != 1) {
return((struct utmp *)NULL);
}
} while (ut.ut_name[0] == 0);
return(&ut);
}
void setutent() {
if (ufp != NULL) rewind(ufp);
}
#endif
// scan list of logged-in users, and see if they're all idle
//
inline bool all_logins_idle(time_t t) {
struct utmp* u;
setutent();
while ((u = getutent()) != NULL) {
if (!user_idle(t, u)) {
return false;
}
}
return true;
}
#endif
bool HOST_INFO::users_idle(bool check_all_logins, double idle_time_to_run) {
#ifdef HAVE__DEV_TTY1
char device_tty[] = "/dev/tty1";
#endif
time_t idle_time = time(NULL) - (long) (60 * idle_time_to_run);
return true
#ifdef HAVE_UTMP_H
&& (!check_all_logins || all_logins_idle(idle_time))
#endif
#ifdef HAVE__DEV_MOUSE
&& device_idle(idle_time, "/dev/mouse") // solaris, linux
#endif
#ifdef HAVE__DEV_KBD
&& device_idle(idle_time, "/dev/kbd") // solaris
#endif
#ifdef HAVE__DEV_TTY1
&& (check_all_logins || all_tty_idle(idle_time, device_tty, '1', 7))
#endif
;
}
const char *BOINC_RCSID_2cf92d205b = "$Id$";
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