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sigar/src/sigar.c

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/*
* Copyright (c) 2004-2009 Hyperic, Inc.
* Copyright (c) 2009 SpringSource, Inc.
* Copyright (c) 2009-2010 VMware, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <errno.h>
#include <stdio.h>
#ifndef WIN32
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/time.h>
#endif
#if defined(__OpenBSD__) || defined(__FreeBSD__)
#include <netinet/in.h>
#endif
#ifndef WIN32
#include <arpa/inet.h>
#endif
#if defined(HAVE_UTMPX_H)
# include <utmpx.h>
#elif defined(HAVE_UTMP_H)
# include <utmp.h>
#endif
#include "sigar.h"
#include "sigar_private.h"
#include "sigar_util.h"
#include "sigar_os.h"
#include "sigar_format.h"
SIGAR_DECLARE(int) sigar_open(sigar_t **sigar)
{
int status = sigar_os_open(sigar);
if (status == SIGAR_OK) {
/* use env to revert to old behavior */
(*sigar)->cpu_list_cores = getenv("SIGAR_CPU_LIST_SOCKETS") ? 0 : 1;
(*sigar)->pid = 0;
(*sigar)->ifconf_buf = NULL;
(*sigar)->ifconf_len = 0;
(*sigar)->log_level = -1; /* log nothing by default */
(*sigar)->log_impl = NULL;
(*sigar)->log_data = NULL;
(*sigar)->ptql_re_impl = NULL;
(*sigar)->ptql_re_data = NULL;
(*sigar)->self_path = NULL;
(*sigar)->fsdev = NULL;
(*sigar)->pids = NULL;
(*sigar)->proc_cpu = NULL;
(*sigar)->net_listen = NULL;
(*sigar)->net_services_tcp = NULL;
(*sigar)->net_services_udp = NULL;
(*sigar)->proc_io = NULL;
}
return status;
}
SIGAR_DECLARE(int) sigar_close(sigar_t *sigar)
{
if (sigar->ifconf_buf) {
free(sigar->ifconf_buf);
}
if (sigar->self_path) {
free(sigar->self_path);
}
if (sigar->pids) {
sigar_proc_list_destroy(sigar, sigar->pids);
free(sigar->pids);
}
if (sigar->fsdev) {
sigar_cache_destroy(sigar->fsdev);
}
if (sigar->proc_cpu) {
sigar_cache_destroy(sigar->proc_cpu);
}
if (sigar->net_listen) {
sigar_cache_destroy(sigar->net_listen);
}
if (sigar->net_services_tcp) {
sigar_cache_destroy(sigar->net_services_tcp);
}
if (sigar->net_services_udp) {
sigar_cache_destroy(sigar->net_services_udp);
}
if (sigar->proc_io) {
sigar_cache_destroy(sigar->proc_io);
}
return sigar_os_close(sigar);
}
#ifndef __linux__ /* linux has a special case */
SIGAR_DECLARE(sigar_pid_t) sigar_pid_get(sigar_t *sigar)
{
if (!sigar->pid) {
sigar->pid = getpid();
}
return sigar->pid;
}
#endif
/* XXX: add clear() function */
/* XXX: check for stale-ness using start_time */
SIGAR_DECLARE(int) sigar_proc_cpu_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_cpu_t *proccpu)
{
sigar_cache_entry_t *entry;
sigar_proc_cpu_t *prev;
sigar_uint64_t otime, time_now = sigar_time_now_millis();
sigar_uint64_t time_diff, total_diff;
int status;
if (!sigar->proc_cpu) {
sigar->proc_cpu = sigar_expired_cache_new(128, PID_CACHE_CLEANUP_PERIOD, PID_CACHE_ENTRY_EXPIRE_PERIOD);
}
entry = sigar_cache_get(sigar->proc_cpu, pid);
if (entry->value) {
prev = (sigar_proc_cpu_t *)entry->value;
}
else {
prev = entry->value = malloc(sizeof(*prev));
SIGAR_ZERO(prev);
}
time_diff = time_now - prev->last_time;
proccpu->last_time = prev->last_time = time_now;
if (time_diff == 0) {
/* we were just called within < 1 second ago. */
memcpy(proccpu, prev, sizeof(*proccpu));
return SIGAR_OK;
}
otime = prev->total;
status =
sigar_proc_time_get(sigar, pid,
(sigar_proc_time_t *)proccpu);
if (status != SIGAR_OK) {
return status;
}
memcpy(prev, proccpu, sizeof(*prev));
if (proccpu->total < otime) {
/* XXX this should not happen */
otime = 0;
}
if (otime == 0) {
proccpu->percent = 0.0;
/* first time called */
return SIGAR_OK;
}
total_diff = proccpu->total - otime;
proccpu->percent = total_diff / (double)time_diff;
return SIGAR_OK;
}
void copy_cached_disk_io_into_disk_io( sigar_cached_proc_disk_io_t *cached, sigar_proc_disk_io_t *proc_disk_io) {
proc_disk_io->bytes_read = cached->bytes_read_diff;
proc_disk_io->bytes_written = cached->bytes_written_diff;
proc_disk_io->bytes_total = cached->bytes_total_diff;
}
sigar_uint64_t get_io_diff(sigar_uint64_t current_value, sigar_uint64_t prev_value, sigar_uint64_t time_diff) {
double io_diff;
sigar_uint64_t int_io_diff;
if ( current_value == SIGAR_FIELD_NOTIMPL ) {
return SIGAR_FIELD_NOTIMPL;
}
io_diff = (( current_value - prev_value)/(double)time_diff)*SIGAR_MSEC;
int_io_diff = (sigar_uint64_t)io_diff;
if (int_io_diff >=0) {
return int_io_diff;
}
return 0;
}
void calculate_io_diff(sigar_proc_cumulative_disk_io_t * proc_disk_io, sigar_cached_proc_disk_io_t *cached, sigar_uint64_t time_diff, int is_first_time) {
/*calculate avg diff /read/write/total per second*/
if (!is_first_time) {
cached->bytes_written_diff = get_io_diff(proc_disk_io->bytes_written, cached->bytes_written, time_diff);
cached->bytes_read_diff = get_io_diff(proc_disk_io->bytes_read, cached->bytes_read, time_diff);
cached->bytes_total_diff = get_io_diff(proc_disk_io->bytes_total, cached->bytes_total, time_diff);
}
else {
cached->bytes_total_diff = cached->bytes_read_diff = cached->bytes_written_diff = 0.0;
}
// now put in cache the current cumulative values
cached->bytes_written = proc_disk_io->bytes_written;
cached->bytes_read = proc_disk_io->bytes_read;
cached->bytes_total = proc_disk_io->bytes_total;
}
SIGAR_DECLARE(int) sigar_proc_disk_io_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_disk_io_t *proc_disk_io)
{
sigar_cache_entry_t *entry;
sigar_cached_proc_disk_io_t *prev;
sigar_proc_cumulative_disk_io_t cumulative_proc_disk_io;
sigar_uint64_t time_now = sigar_time_now_millis();
sigar_uint64_t time_diff;
int status, is_first_time;
if (!sigar->proc_io) {
sigar->proc_io = sigar_expired_cache_new(128, PID_CACHE_CLEANUP_PERIOD, PID_CACHE_ENTRY_EXPIRE_PERIOD);
}
entry = sigar_cache_get(sigar->proc_io, pid);
if (entry->value) {
prev = (sigar_cached_proc_disk_io_t *)entry->value;
}
else {
prev = entry->value = malloc(sizeof(*prev));
SIGAR_ZERO(prev);
}
is_first_time = (prev->last_time == 0);
time_diff = time_now - prev->last_time;
if (time_diff < 1000) {
/* we were just called within < 1 second ago. */
copy_cached_disk_io_into_disk_io(prev, proc_disk_io);
if (time_diff < 0) {
// something is wrong at least from now on the time will be ok
prev->last_time = time_now;
}
return SIGAR_OK;
}
prev->last_time = time_now;
status =
sigar_proc_cumulative_disk_io_get(sigar, pid,
&cumulative_proc_disk_io);
if (status != SIGAR_OK) {
return status;
}
calculate_io_diff(&cumulative_proc_disk_io, prev, time_diff, is_first_time);
copy_cached_disk_io_into_disk_io(prev, proc_disk_io);
return SIGAR_OK;
}
void get_cache_info(sigar_cache_t * cache, char * name){
if (cache == NULL) {
return;
}
printf("******** %s *********\n", name);
sigar_cache_dump(cache);
}
SIGAR_DECLARE(int) sigar_dump_pid_cache_get(sigar_t *sigar, sigar_dump_pid_cache_t *info) {
get_cache_info(sigar->proc_cpu, "proc cpu cache");
get_cache_info(sigar->proc_io, "proc io cache");
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_proc_stat_get(sigar_t *sigar,
sigar_proc_stat_t *procstat)
{
int status, i;
sigar_proc_list_t *pids;
SIGAR_ZERO(procstat);
procstat->threads = SIGAR_FIELD_NOTIMPL;
if ((status = sigar_proc_list_get(sigar, NULL)) != SIGAR_OK) {
return status;
}
pids = sigar->pids;
procstat->total = pids->number;
for (i=0; i<pids->number; i++) {
sigar_proc_state_t state;
status = sigar_proc_state_get(sigar, pids->data[i], &state);
if (status != SIGAR_OK) {
continue;
}
if (state.threads != SIGAR_FIELD_NOTIMPL) {
procstat->threads += state.threads;
}
switch (state.state) {
case SIGAR_PROC_STATE_IDLE:
procstat->idle++;
break;
case SIGAR_PROC_STATE_RUN:
procstat->running++;
break;
case SIGAR_PROC_STATE_SLEEP:
procstat->sleeping++;
break;
case SIGAR_PROC_STATE_STOP:
procstat->stopped++;
break;
case SIGAR_PROC_STATE_ZOMBIE:
procstat->zombie++;
break;
default:
break;
}
}
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_sys_info_get(sigar_t *sigar,
sigar_sys_info_t *sysinfo)
{
SIGAR_ZERO(sysinfo);
#ifndef WIN32
sigar_sys_info_get_uname(sysinfo);
#endif
sigar_os_sys_info_get(sigar, sysinfo);
return SIGAR_OK;
}
#ifndef WIN32
#include <sys/utsname.h>
int sigar_sys_info_get_uname(sigar_sys_info_t *sysinfo)
{
struct utsname name;
uname(&name);
SIGAR_SSTRCPY(sysinfo->version, name.release);
SIGAR_SSTRCPY(sysinfo->vendor_name, name.sysname);
SIGAR_SSTRCPY(sysinfo->name, name.sysname);
SIGAR_SSTRCPY(sysinfo->machine, name.machine);
SIGAR_SSTRCPY(sysinfo->arch, name.machine);
SIGAR_SSTRCPY(sysinfo->patch_level, "unknown");
return SIGAR_OK;
}
SIGAR_DECLARE(int)
sigar_proc_cred_name_get(sigar_t *sigar, sigar_pid_t pid,
sigar_proc_cred_name_t *proccredname)
{
sigar_proc_cred_t cred;
int status = sigar_proc_cred_get(sigar, pid, &cred);
if (status != SIGAR_OK) {
return status;
}
status = sigar_user_name_get(sigar, cred.uid,
proccredname->user,
sizeof(proccredname->user));
if (status != SIGAR_OK) {
return status;
}
status = sigar_group_name_get(sigar, cred.gid,
proccredname->group,
sizeof(proccredname->group));
return status;
}
#endif /* WIN32 */
int sigar_proc_list_create(sigar_proc_list_t *proclist)
{
proclist->number = 0;
proclist->size = SIGAR_PROC_LIST_MAX;
proclist->data = malloc(sizeof(*(proclist->data)) *
proclist->size);
return SIGAR_OK;
}
int sigar_proc_list_grow(sigar_proc_list_t *proclist)
{
proclist->data = realloc(proclist->data,
sizeof(*(proclist->data)) *
(proclist->size + SIGAR_PROC_LIST_MAX));
proclist->size += SIGAR_PROC_LIST_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_proc_list_destroy(sigar_t *sigar,
sigar_proc_list_t *proclist)
{
if (proclist->size) {
free(proclist->data);
proclist->number = proclist->size = 0;
}
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_proc_list_get(sigar_t *sigar,
sigar_proc_list_t *proclist)
{
if (proclist == NULL) {
/* internal re-use */
if (sigar->pids == NULL) {
sigar->pids = malloc(sizeof(*sigar->pids));
sigar_proc_list_create(sigar->pids);
}
else {
sigar->pids->number = 0;
}
proclist = sigar->pids;
}
else {
sigar_proc_list_create(proclist);
}
return sigar_os_proc_list_get(sigar, proclist);
}
int sigar_proc_args_create(sigar_proc_args_t *procargs)
{
procargs->number = 0;
procargs->size = SIGAR_PROC_ARGS_MAX;
procargs->data = malloc(sizeof(*(procargs->data)) *
procargs->size);
return SIGAR_OK;
}
int sigar_proc_args_grow(sigar_proc_args_t *procargs)
{
procargs->data = realloc(procargs->data,
sizeof(*(procargs->data)) *
(procargs->size + SIGAR_PROC_ARGS_MAX));
procargs->size += SIGAR_PROC_ARGS_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_proc_args_destroy(sigar_t *sigar,
sigar_proc_args_t *procargs)
{
unsigned int i;
if (procargs->size) {
for (i=0; i<procargs->number; i++) {
free(procargs->data[i]);
}
free(procargs->data);
procargs->number = procargs->size = 0;
}
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_proc_args_get(sigar_t *sigar,
sigar_pid_t pid,
sigar_proc_args_t *procargs)
{
int status;
sigar_proc_args_create(procargs);
status = sigar_os_proc_args_get(sigar, pid, procargs);
if (status != SIGAR_OK) {
sigar_proc_args_destroy(sigar, procargs);
}
return status;
}
int sigar_file_system_list_create(sigar_file_system_list_t *fslist)
{
fslist->number = 0;
fslist->size = SIGAR_FS_MAX;
fslist->data = malloc(sizeof(*(fslist->data)) *
fslist->size);
return SIGAR_OK;
}
int sigar_file_system_list_grow(sigar_file_system_list_t *fslist)
{
fslist->data = realloc(fslist->data,
sizeof(*(fslist->data)) *
(fslist->size + SIGAR_FS_MAX));
fslist->size += SIGAR_FS_MAX;
return SIGAR_OK;
}
/* indexed with sigar_file_system_type_e */
static const char *fstype_names[] = {
"unknown", "none", "local", "remote", "ram", "cdrom", "swap"
};
static int sigar_common_fs_type_get(sigar_file_system_t *fsp)
{
char *type = fsp->sys_type_name;
switch (*type) {
case 'n':
if (strnEQ(type, "nfs", 3)) {
fsp->type = SIGAR_FSTYPE_NETWORK;
}
break;
case 's':
if (strEQ(type, "smbfs")) { /* samba */
fsp->type = SIGAR_FSTYPE_NETWORK;
}
else if (strEQ(type, "swap")) {
fsp->type = SIGAR_FSTYPE_SWAP;
}
break;
case 'a':
if (strEQ(type, "afs")) {
fsp->type = SIGAR_FSTYPE_NETWORK;
}
break;
case 'i':
if (strEQ(type, "iso9660")) {
fsp->type = SIGAR_FSTYPE_CDROM;
}
break;
case 'c':
if (strEQ(type, "cvfs")) {
fsp->type = SIGAR_FSTYPE_LOCAL_DISK;
}
else if (strEQ(type, "cifs")) {
fsp->type = SIGAR_FSTYPE_NETWORK;
}
break;
case 'm':
if (strEQ(type, "msdos") || strEQ(type, "minix")) {
fsp->type = SIGAR_FSTYPE_LOCAL_DISK;
}
break;
case 'h':
if (strEQ(type, "hpfs")) {
fsp->type = SIGAR_FSTYPE_LOCAL_DISK;
}
break;
case 'v':
if (strEQ(type, "vxfs")) {
fsp->type = SIGAR_FSTYPE_LOCAL_DISK;
}
else if (strEQ(type, "vfat")) {
fsp->type = SIGAR_FSTYPE_LOCAL_DISK;
}
break;
case 'z':
if (strEQ(type, "zfs")) {
fsp->type = SIGAR_FSTYPE_LOCAL_DISK;
}
break;
}
return fsp->type;
}
void sigar_fs_type_get(sigar_file_system_t *fsp)
{
if (!(fsp->type || /* already set */
sigar_os_fs_type_get(fsp) || /* try os specifics first */
sigar_common_fs_type_get(fsp))) /* try common ones last */
{
fsp->type = SIGAR_FSTYPE_NONE;
}
if (fsp->type >= SIGAR_FSTYPE_MAX) {
fsp->type = SIGAR_FSTYPE_NONE;
}
strcpy(fsp->type_name, fstype_names[fsp->type]);
}
SIGAR_DECLARE(int)
sigar_file_system_list_destroy(sigar_t *sigar,
sigar_file_system_list_t *fslist)
{
if (fslist->size) {
free(fslist->data);
fslist->number = fslist->size = 0;
}
return SIGAR_OK;
}
#ifndef NFS_PROGRAM
#define NFS_PROGRAM 100003
#endif
#ifndef NFS_VERSION
#define NFS_VERSION 2
#endif
SIGAR_DECLARE(int)
sigar_file_system_ping(sigar_t *sigar,
sigar_file_system_t *fs)
{
int status = SIGAR_OK;
#ifndef WIN32
char *ptr;
if ((fs->type == SIGAR_FSTYPE_NETWORK) &&
strEQ(fs->sys_type_name, "nfs") &&
(ptr = strchr(fs->dev_name, ':')))
{
*ptr = '\0'; /* "hostname:/mount" -> "hostname" */
status = sigar_rpc_ping(fs->dev_name,
SIGAR_NETCONN_UDP,
NFS_PROGRAM, NFS_VERSION);
if (SIGAR_LOG_IS_DEBUG(sigar)) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fs_ping] %s -> %s: %s",
fs->dir_name, fs->dev_name,
((status == SIGAR_OK) ?
"OK" : sigar_rpc_strerror(status)));
}
*ptr = ':'; /* "hostname" -> "hostname:/mount" */
}
#endif
return status;
}
int sigar_cpu_info_list_create(sigar_cpu_info_list_t *cpu_infos)
{
cpu_infos->number = 0;
cpu_infos->size = SIGAR_CPU_INFO_MAX;
cpu_infos->data = malloc(sizeof(*(cpu_infos->data)) *
cpu_infos->size);
return SIGAR_OK;
}
int sigar_cpu_info_list_grow(sigar_cpu_info_list_t *cpu_infos)
{
cpu_infos->data = realloc(cpu_infos->data,
sizeof(*(cpu_infos->data)) *
(cpu_infos->size + SIGAR_CPU_INFO_MAX));
cpu_infos->size += SIGAR_CPU_INFO_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int)
sigar_cpu_info_list_destroy(sigar_t *sigar,
sigar_cpu_info_list_t *cpu_infos)
{
if (cpu_infos->size) {
free(cpu_infos->data);
cpu_infos->number = cpu_infos->size = 0;
}
return SIGAR_OK;
}
int sigar_cpu_list_create(sigar_cpu_list_t *cpulist)
{
cpulist->number = 0;
cpulist->size = SIGAR_CPU_INFO_MAX;
cpulist->data = malloc(sizeof(*(cpulist->data)) *
cpulist->size);
return SIGAR_OK;
}
int sigar_cpu_list_grow(sigar_cpu_list_t *cpulist)
{
cpulist->data = realloc(cpulist->data,
sizeof(*(cpulist->data)) *
(cpulist->size + SIGAR_CPU_INFO_MAX));
cpulist->size += SIGAR_CPU_INFO_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_cpu_list_destroy(sigar_t *sigar,
sigar_cpu_list_t *cpulist)
{
if (cpulist->size) {
free(cpulist->data);
cpulist->number = cpulist->size = 0;
}
return SIGAR_OK;
}
int sigar_net_route_list_create(sigar_net_route_list_t *routelist)
{
routelist->number = 0;
routelist->size = SIGAR_NET_ROUTE_LIST_MAX;
routelist->data = malloc(sizeof(*(routelist->data)) *
routelist->size);
return SIGAR_OK;
}
int sigar_net_route_list_grow(sigar_net_route_list_t *routelist)
{
routelist->data =
realloc(routelist->data,
sizeof(*(routelist->data)) *
(routelist->size + SIGAR_NET_ROUTE_LIST_MAX));
routelist->size += SIGAR_NET_ROUTE_LIST_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_net_route_list_destroy(sigar_t *sigar,
sigar_net_route_list_t *routelist)
{
if (routelist->size) {
free(routelist->data);
routelist->number = routelist->size = 0;
}
return SIGAR_OK;
}
int sigar_net_interface_list_create(sigar_net_interface_list_t *iflist)
{
iflist->number = 0;
iflist->size = SIGAR_NET_IFLIST_MAX;
iflist->data = malloc(sizeof(*(iflist->data)) *
iflist->size);
return SIGAR_OK;
}
int sigar_net_interface_list_grow(sigar_net_interface_list_t *iflist)
{
iflist->data = realloc(iflist->data,
sizeof(*(iflist->data)) *
(iflist->size + SIGAR_NET_IFLIST_MAX));
iflist->size += SIGAR_NET_IFLIST_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int)
sigar_net_interface_list_destroy(sigar_t *sigar,
sigar_net_interface_list_t *iflist)
{
unsigned int i;
if (iflist->size) {
for (i=0; i<iflist->number; i++) {
free(iflist->data[i]);
}
free(iflist->data);
iflist->number = iflist->size = 0;
}
return SIGAR_OK;
}
int sigar_net_connection_list_create(sigar_net_connection_list_t *connlist)
{
connlist->number = 0;
connlist->size = SIGAR_NET_CONNLIST_MAX;
connlist->data = malloc(sizeof(*(connlist->data)) *
connlist->size);
return SIGAR_OK;
}
int sigar_net_connection_list_grow(sigar_net_connection_list_t *connlist)
{
connlist->data =
realloc(connlist->data,
sizeof(*(connlist->data)) *
(connlist->size + SIGAR_NET_CONNLIST_MAX));
connlist->size += SIGAR_NET_CONNLIST_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int)
sigar_net_connection_list_destroy(sigar_t *sigar,
sigar_net_connection_list_t *connlist)
{
if (connlist->size) {
free(connlist->data);
connlist->number = connlist->size = 0;
}
return SIGAR_OK;
}
#if !defined(__linux__)
/*
* implement sigar_net_connection_list_get using sigar_net_connection_walk
* linux has its own list_get impl.
*/
static int net_connection_list_walker(sigar_net_connection_walker_t *walker,
sigar_net_connection_t *conn)
{
sigar_net_connection_list_t *connlist =
(sigar_net_connection_list_t *)walker->data;
SIGAR_NET_CONNLIST_GROW(connlist);
memcpy(&connlist->data[connlist->number++],
conn, sizeof(*conn));
return SIGAR_OK; /* continue loop */
}
SIGAR_DECLARE(int)
sigar_net_connection_list_get(sigar_t *sigar,
sigar_net_connection_list_t *connlist,
int flags)
{
int status;
sigar_net_connection_walker_t walker;
sigar_net_connection_list_create(connlist);
walker.sigar = sigar;
walker.flags = flags;
walker.data = connlist;
walker.add_connection = net_connection_list_walker;
status = sigar_net_connection_walk(&walker);
if (status != SIGAR_OK) {
sigar_net_connection_list_destroy(sigar, connlist);
}
return status;
}
#endif
static void sigar_net_listen_address_add(sigar_t *sigar,
sigar_net_connection_t *conn)
{
sigar_cache_entry_t *entry =
sigar_cache_get(sigar->net_listen, conn->local_port);
if (entry->value) {
if (conn->local_address.family == SIGAR_AF_INET6) {
return; /* prefer ipv4 */
}
}
else {
entry->value = malloc(sizeof(conn->local_address));
}
memcpy(entry->value, &conn->local_address,
sizeof(conn->local_address));
}
SIGAR_DECLARE(int)
sigar_net_listen_address_get(sigar_t *sigar,
unsigned long port,
sigar_net_address_t *address)
{
if (!sigar->net_listen ||
!sigar_cache_find(sigar->net_listen, port))
{
sigar_net_stat_t netstat;
int status =
sigar_net_stat_get(sigar, &netstat,
SIGAR_NETCONN_SERVER|SIGAR_NETCONN_TCP);
if (status != SIGAR_OK) {
return status;
}
}
if (sigar_cache_find(sigar->net_listen, port)) {
void *value = sigar_cache_get(sigar->net_listen, port)->value;
memcpy(address, value, sizeof(*address));
return SIGAR_OK;
}
else {
return ENOENT;
}
}
typedef struct {
sigar_net_stat_t *netstat;
sigar_net_connection_list_t *connlist;
} net_stat_getter_t;
static int net_stat_walker(sigar_net_connection_walker_t *walker,
sigar_net_connection_t *conn)
{
int state = conn->state;
sigar_cache_t *listen_ports = walker->sigar->net_listen;
net_stat_getter_t *getter =
(net_stat_getter_t *)walker->data;
if (conn->type == SIGAR_NETCONN_TCP) {
getter->netstat->tcp_states[state]++;
/* XXX listen_ports may get stale */
if (state == SIGAR_TCP_LISTEN) {
sigar_net_listen_address_add(walker->sigar, conn);
}
else {
if (sigar_cache_find(listen_ports,
conn->local_port))
{
getter->netstat->tcp_inbound_total++;
}
else {
getter->netstat->tcp_outbound_total++;
}
}
}
else if (conn->type == SIGAR_NETCONN_UDP) {
/*XXX*/
}
getter->netstat->all_inbound_total =
getter->netstat->tcp_inbound_total;
getter->netstat->all_outbound_total =
getter->netstat->tcp_outbound_total;
return SIGAR_OK;
}
SIGAR_DECLARE(int)
sigar_net_stat_get(sigar_t *sigar,
sigar_net_stat_t *netstat,
int flags)
{
sigar_net_connection_walker_t walker;
net_stat_getter_t getter;
if (!sigar->net_listen) {
sigar->net_listen = sigar_cache_new(32);
}
SIGAR_ZERO(netstat);
getter.netstat = netstat;
walker.sigar = sigar;
walker.data = &getter;
walker.add_connection = net_stat_walker;
walker.flags = flags;
return sigar_net_connection_walk(&walker);
}
typedef struct {
sigar_net_stat_t *netstat;
sigar_net_address_t *address;
unsigned long port;
} net_stat_port_getter_t;
static int net_stat_port_walker(sigar_net_connection_walker_t *walker,
sigar_net_connection_t *conn)
{
net_stat_port_getter_t *getter =
(net_stat_port_getter_t *)walker->data;
sigar_net_stat_t *netstat = getter->netstat;
if (conn->type == SIGAR_NETCONN_TCP) {
if (conn->local_port == getter->port) {
netstat->all_inbound_total++;
if (sigar_net_address_equals(getter->address,
&conn->local_address) == SIGAR_OK)
{
netstat->tcp_inbound_total++;
}
}
else if (conn->remote_port == getter->port) {
netstat->all_outbound_total++;
if (sigar_net_address_equals(getter->address,
&conn->remote_address) == SIGAR_OK)
{
netstat->tcp_outbound_total++;
}
}
else {
return SIGAR_OK;
}
netstat->tcp_states[conn->state]++;
}
else if (conn->type == SIGAR_NETCONN_UDP) {
/*XXX*/
}
return SIGAR_OK;
}
SIGAR_DECLARE(int)
sigar_net_stat_port_get(sigar_t *sigar,
sigar_net_stat_t *netstat,
int flags,
sigar_net_address_t *address,
unsigned long port)
{
sigar_net_connection_walker_t walker;
net_stat_port_getter_t getter;
SIGAR_ZERO(netstat);
getter.netstat = netstat;
getter.address = address;
getter.port = port;
walker.sigar = sigar;
walker.data = &getter;
walker.add_connection = net_stat_port_walker;
walker.flags = flags;
if (SIGAR_LOG_IS_DEBUG(sigar)) {
char name[SIGAR_FQDN_LEN];
sigar_net_address_to_string(sigar, address, name);
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[net_stat_port] using address '%s:%d'",
name, port);
}
return sigar_net_connection_walk(&walker);
}
static int tcp_curr_estab_count(sigar_net_connection_walker_t *walker,
sigar_net_connection_t *conn)
{
if ((conn->state == SIGAR_TCP_ESTABLISHED) ||
(conn->state == SIGAR_TCP_CLOSE_WAIT))
{
((sigar_tcp_t *)walker->data)->curr_estab++;
}
return SIGAR_OK;
}
/* TCP-MIB::tcpCurrEstab */
int sigar_tcp_curr_estab(sigar_t *sigar, sigar_tcp_t *tcp)
{
sigar_net_connection_walker_t walker;
walker.sigar = sigar;
walker.data = tcp;
walker.add_connection = tcp_curr_estab_count;
walker.flags = SIGAR_NETCONN_CLIENT|SIGAR_NETCONN_TCP;
tcp->curr_estab = 0;
return sigar_net_connection_walk(&walker);
}
int sigar_arp_list_create(sigar_arp_list_t *arplist)
{
arplist->number = 0;
arplist->size = SIGAR_ARP_LIST_MAX;
arplist->data = malloc(sizeof(*(arplist->data)) *
arplist->size);
return SIGAR_OK;
}
int sigar_arp_list_grow(sigar_arp_list_t *arplist)
{
arplist->data = realloc(arplist->data,
sizeof(*(arplist->data)) *
(arplist->size + SIGAR_ARP_LIST_MAX));
arplist->size += SIGAR_ARP_LIST_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_arp_list_destroy(sigar_t *sigar,
sigar_arp_list_t *arplist)
{
if (arplist->size) {
free(arplist->data);
arplist->number = arplist->size = 0;
}
return SIGAR_OK;
}
int sigar_who_list_create(sigar_who_list_t *wholist)
{
wholist->number = 0;
wholist->size = SIGAR_WHO_LIST_MAX;
wholist->data = malloc(sizeof(*(wholist->data)) *
wholist->size);
return SIGAR_OK;
}
int sigar_who_list_grow(sigar_who_list_t *wholist)
{
wholist->data = realloc(wholist->data,
sizeof(*(wholist->data)) *
(wholist->size + SIGAR_WHO_LIST_MAX));
wholist->size += SIGAR_WHO_LIST_MAX;
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_who_list_destroy(sigar_t *sigar,
sigar_who_list_t *wholist)
{
if (wholist->size) {
free(wholist->data);
wholist->number = wholist->size = 0;
}
return SIGAR_OK;
}
#if defined(NETWARE)
static char *getpass(const char *prompt)
{
static char password[BUFSIZ];
fputs(prompt, stderr);
fgets((char *)&password, sizeof(password), stdin);
return (char *)&password;
}
#endif
#define WHOCPY(dest, src) \
SIGAR_SSTRCPY(dest, src); \
if (sizeof(src) < sizeof(dest)) \
dest[sizeof(src)] = '\0'
static int sigar_who_utmp(sigar_t *sigar,
sigar_who_list_t *wholist)
{
#if defined(HAVE_UTMPX_H)
struct utmpx *ut;
setutxent();
while ((ut = getutxent()) != NULL) {
sigar_who_t *who;
if (*ut->ut_user == '\0') {
continue;
}
if (ut->ut_type != USER_PROCESS) {
continue;
}
SIGAR_WHO_LIST_GROW(wholist);
who = &wholist->data[wholist->number++];
WHOCPY(who->user, ut->ut_user);
WHOCPY(who->device, ut->ut_line);
WHOCPY(who->host, ut->ut_host);
who->time = ut->ut_tv.tv_sec;
}
endutxent();
#elif defined(HAVE_UTMP_H)
FILE *fp;
struct utmp ut;
if (!(fp = fopen(_PATH_UTMP, "r"))) {
return errno;
}
while (fread(&ut, sizeof(ut), 1, fp) == 1) {
sigar_who_t *who;
if (*ut.ut_name == '\0') {
continue;
}
#ifdef USER_PROCESS
if (ut.ut_type != USER_PROCESS) {
continue;
}
#endif
SIGAR_WHO_LIST_GROW(wholist);
who = &wholist->data[wholist->number++];
WHOCPY(who->user, ut.ut_name);
WHOCPY(who->device, ut.ut_line);
WHOCPY(who->host, ut.ut_host);
who->time = ut.ut_time;
}
fclose(fp);
#endif
return SIGAR_OK;
}
#if defined(WIN32)
int sigar_who_list_get_win32(sigar_t *sigar,
sigar_who_list_t *wholist);
SIGAR_DECLARE(int) sigar_who_list_get(sigar_t *sigar,
sigar_who_list_t *wholist)
{
sigar_who_list_create(wholist);
/* cygwin ssh */
sigar_who_utmp(sigar, wholist);
sigar_who_list_get_win32(sigar, wholist);
return SIGAR_OK;
}
SIGAR_DECLARE(int) sigar_resource_limit_get(sigar_t *sigar,
sigar_resource_limit_t *rlimit)
{
MEMORY_BASIC_INFORMATION meminfo;
memset(rlimit, 0x7fffffff, sizeof(*rlimit));
if (VirtualQuery((LPCVOID)&meminfo, &meminfo, sizeof(meminfo))) {
rlimit->stack_cur =
(DWORD)&meminfo - (DWORD)meminfo.AllocationBase;
rlimit->stack_max =
((DWORD)meminfo.BaseAddress + meminfo.RegionSize) -
(DWORD)meminfo.AllocationBase;
}
rlimit->virtual_memory_max = rlimit->virtual_memory_cur =
0x80000000UL;
return SIGAR_OK;
}
#elif defined(NETWARE)
int sigar_resource_limit_get(sigar_t *sigar,
sigar_resource_limit_t *rlimit)
{
return SIGAR_ENOTIMPL;
}
int sigar_who_list_get(sigar_t *sigar,
sigar_who_list_t *wholist)
{
return SIGAR_ENOTIMPL;
}
#else
#ifndef _AIX
int sigar_who_list_get(sigar_t *sigar,
sigar_who_list_t *wholist)
{
int status;
sigar_who_list_create(wholist);
status = sigar_who_utmp(sigar, wholist);
if (status != SIGAR_OK) {
sigar_who_list_destroy(sigar, wholist);
return status;
}
return SIGAR_OK;
}
#endif
static int sigar_get_default_gateway(sigar_t *sigar,
sigar_net_info_t *netinfo)
{
int status, i;
sigar_net_route_list_t routelist;
status = sigar_net_route_list_get(sigar, &routelist);
if (status != SIGAR_OK) {
return status;
}
for (i=0; i<routelist.number; i++) {
if ((routelist.data[i].flags & SIGAR_RTF_GATEWAY) &&
(routelist.data[i].destination.addr.in == 0))
{
sigar_net_address_to_string(sigar,
&routelist.data[i].gateway,
netinfo->default_gateway);
SIGAR_STRNCPY(netinfo->default_gateway_interface,
routelist.data[i].ifname,
sizeof(netinfo->default_gateway_interface));
break;
}
}
sigar_net_route_list_destroy(sigar, &routelist);
return SIGAR_OK;
}
int sigar_net_info_get(sigar_t *sigar,
sigar_net_info_t *netinfo)
{
int size;
char buffer[BUFSIZ], *ptr;
FILE *fp;
SIGAR_ZERO(netinfo);
if ((fp = fopen("/etc/resolv.conf", "r"))) {
while ((ptr = fgets(buffer, sizeof(buffer), fp))) {
int len;
SIGAR_SKIP_SPACE(ptr);
if ((*ptr == '#') ||
!(ptr = strstr(ptr, "nameserver")))
{
continue;
}
ptr += 10;
SIGAR_SKIP_SPACE(ptr);
len = strlen(ptr);
ptr[len-1] = '\0'; /* chop \n */
if (!netinfo->primary_dns[0]) {
SIGAR_SSTRCPY(netinfo->primary_dns, ptr);
}
else if (!netinfo->secondary_dns[0]) {
SIGAR_SSTRCPY(netinfo->secondary_dns, ptr);
}
else {
break;
}
}
fclose(fp);
} /* else /etc/resolv.conf may not exist if unplugged (MacOSX) */
size = sizeof(netinfo->host_name)-1;
if (gethostname(netinfo->host_name, size) == 0) {
netinfo->host_name[size] = '\0';
}
else {
netinfo->host_name[0] = '\0';
}
size = sizeof(netinfo->domain_name)-1;
if (getdomainname(netinfo->domain_name, size) == 0) {
netinfo->domain_name[size] = '\0';
}
else {
netinfo->domain_name[0] = '\0';
}
sigar_get_default_gateway(sigar, netinfo);
return SIGAR_OK;
}
#include <sys/resource.h>
#define OffsetOf(structure, field) \
(size_t)(&((structure *)NULL)->field)
#define RlimitOffsets(field) \
OffsetOf(sigar_resource_limit_t, field##_cur), \
OffsetOf(sigar_resource_limit_t, field##_max)
#define RlimitSet(structure, ptr, val) \
*(sigar_uint64_t *)((char *)structure + (int)(long)ptr) = val
typedef struct {
int resource;
int factor;
size_t cur;
size_t max;
} rlimit_field_t;
#ifndef RLIMIT_RSS
#define RLIMIT_RSS (RLIM_NLIMITS+1)
#endif
#ifndef RLIMIT_NPROC
#define RLIMIT_NPROC (RLIM_NLIMITS+2)
#endif
#define RLIMIT_PSIZE (RLIM_NLIMITS+3)
#ifndef RLIMIT_AS
# if defined(RLIMIT_VMEM)
# define RLIMIT_AS RLIMIT_VMEM
# elif defined(RLIMIT_RSS)
# define RLIMIT_AS RLIMIT_RSS
# endif
#endif
static rlimit_field_t sigar_rlimits[] = {
{ RLIMIT_CPU, 1, RlimitOffsets(cpu) },
{ RLIMIT_FSIZE, 1024, RlimitOffsets(file_size) },
{ RLIMIT_DATA, 1024, RlimitOffsets(data) },
{ RLIMIT_STACK, 1024, RlimitOffsets(stack) },
{ RLIMIT_PSIZE, 512, RlimitOffsets(pipe_size) },
{ RLIMIT_CORE, 1024, RlimitOffsets(core) },
{ RLIMIT_RSS, 1024, RlimitOffsets(memory) },
{ RLIMIT_NPROC, 1, RlimitOffsets(processes) },
{ RLIMIT_NOFILE, 1, RlimitOffsets(open_files) },
{ RLIMIT_AS, 1024, RlimitOffsets(virtual_memory) },
{ -1 }
};
#define RlimitScale(val) \
if (val != RLIM_INFINITY) val /= r->factor
#define RlimitHS(val) \
rl.rlim_cur = rl.rlim_max = (val)
int sigar_resource_limit_get(sigar_t *sigar,
sigar_resource_limit_t *rlimit)
{
int i;
for (i=0; sigar_rlimits[i].resource != -1; i++) {
struct rlimit rl;
rlimit_field_t *r = &sigar_rlimits[i];
if (r->resource > RLIM_NLIMITS) {
switch (r->resource) {
case RLIMIT_NPROC:
RlimitHS(sysconf(_SC_CHILD_MAX));
break;
case RLIMIT_PSIZE:
RlimitHS(PIPE_BUF/512);
break;
default:
RlimitHS(RLIM_INFINITY);
break;
}
}
else if (getrlimit(r->resource, &rl) != 0) {
RlimitHS(RLIM_INFINITY);
}
else {
RlimitScale(rl.rlim_cur);
RlimitScale(rl.rlim_max);
}
RlimitSet(rlimit, r->cur, rl.rlim_cur);
RlimitSet(rlimit, r->max, rl.rlim_max);
}
return SIGAR_OK;
}
#endif
#if !defined(WIN32) && !defined(NETWARE) && !defined(DARWIN) && \
!defined(__FreeBSD__) && !defined(__OpenBSD__) && !defined(__NetBSD__)
/* XXX: prolly will be moving these stuffs into os_net.c */
#include <sys/ioctl.h>
#include <net/if.h>
#ifndef SIOCGIFCONF
#include <sys/sockio.h>
#endif
#if defined(_AIX) || defined(__osf__) /* good buddies */
#include <net/if_dl.h>
static void hwaddr_aix_lookup(sigar_t *sigar, sigar_net_interface_config_t *ifconfig)
{
char *ent, *end;
struct ifreq *ifr;
/* XXX: assumes sigar_net_interface_list_get has been called */
end = sigar->ifconf_buf + sigar->ifconf_len;
for (ent = sigar->ifconf_buf;
ent < end;
ent += sizeof(*ifr))
{
ifr = (struct ifreq *)ent;
if (ifr->ifr_addr.sa_family != AF_LINK) {
continue;
}
if (strEQ(ifr->ifr_name, ifconfig->name)) {
struct sockaddr_dl *sdl = (struct sockaddr_dl *)&ifr->ifr_addr;
sigar_net_address_mac_set(ifconfig->hwaddr,
LLADDR(sdl),
sdl->sdl_alen);
return;
}
}
sigar_hwaddr_set_null(ifconfig);
}
#elif !defined(SIOCGIFHWADDR)
#include <net/if_arp.h>
static void hwaddr_arp_lookup(sigar_net_interface_config_t *ifconfig, int sock)
{
struct arpreq areq;
struct sockaddr_in *sa;
memset(&areq, 0, sizeof(areq));
sa = (struct sockaddr_in *)&areq.arp_pa;
sa->sin_family = AF_INET;
sa->sin_addr.s_addr = ifconfig->address.addr.in;
if (ioctl(sock, SIOCGARP, &areq) < 0) {
/* ho-hum */
sigar_hwaddr_set_null(ifconfig);
}
else {
sigar_net_address_mac_set(ifconfig->hwaddr,
areq.arp_ha.sa_data,
SIGAR_IFHWADDRLEN);
}
}
#endif
#ifdef __linux__
#include <net/if_arp.h>
#ifndef ARPHRD_CISCO /* not in 2.2 kernel headers */
#define ARPHRD_CISCO 513 /* Cisco HDLC. */
#endif
static void get_interface_type(sigar_net_interface_config_t *ifconfig,
int family)
{
char *type;
switch (family) {
case ARPHRD_SLIP:
type = SIGAR_NIC_SLIP;
break;
case ARPHRD_CSLIP:
type = SIGAR_NIC_CSLIP;
break;
case ARPHRD_SLIP6:
type = SIGAR_NIC_SLIP6;
break;
case ARPHRD_CSLIP6:
type = SIGAR_NIC_CSLIP6;
break;
case ARPHRD_ADAPT:
type = SIGAR_NIC_ADAPTIVE;
break;
case ARPHRD_ETHER:
type = SIGAR_NIC_ETHERNET;
break;
case ARPHRD_ASH:
type = SIGAR_NIC_ASH;
break;
case ARPHRD_FDDI:
type = SIGAR_NIC_FDDI;
break;
case ARPHRD_HIPPI:
type = SIGAR_NIC_HIPPI;
break;
case ARPHRD_AX25:
type = SIGAR_NIC_AX25;
break;
case ARPHRD_ROSE:
type = SIGAR_NIC_ROSE;
break;
case ARPHRD_NETROM:
type = SIGAR_NIC_NETROM;
break;
case ARPHRD_X25:
type = SIGAR_NIC_X25;
break;
case ARPHRD_TUNNEL:
type = SIGAR_NIC_TUNNEL;
break;
case ARPHRD_PPP:
type = SIGAR_NIC_PPP;
break;
case ARPHRD_CISCO:
type = SIGAR_NIC_HDLC;
break;
case ARPHRD_LAPB:
type = SIGAR_NIC_LAPB;
break;
case ARPHRD_ARCNET:
type = SIGAR_NIC_ARCNET;
break;
case ARPHRD_DLCI:
type = SIGAR_NIC_DLCI;
break;
case ARPHRD_FRAD:
type = SIGAR_NIC_FRAD;
break;
case ARPHRD_SIT:
type = SIGAR_NIC_SIT;
break;
case ARPHRD_IRDA:
type = SIGAR_NIC_IRDA;
break;
case ARPHRD_ECONET:
type = SIGAR_NIC_EC;
break;
default:
type = SIGAR_NIC_UNSPEC;
break;
}
SIGAR_SSTRCPY(ifconfig->type, type);
}
#endif
int sigar_net_interface_config_get(sigar_t *sigar, const char *name,
sigar_net_interface_config_t *ifconfig)
{
int sock;
struct ifreq ifr;
if (!name) {
return sigar_net_interface_config_primary_get(sigar, ifconfig);
}
SIGAR_ZERO(ifconfig);
if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
return errno;
}
SIGAR_SSTRCPY(ifconfig->name, name);
SIGAR_SSTRCPY(ifr.ifr_name, name);
#define ifr_s_addr(ifr) \
((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr
if (!ioctl(sock, SIOCGIFADDR, &ifr)) {
sigar_net_address_set(ifconfig->address,
ifr_s_addr(ifr));
}
if (!ioctl(sock, SIOCGIFNETMASK, &ifr)) {
sigar_net_address_set(ifconfig->netmask,
ifr_s_addr(ifr));
}
if (!ioctl(sock, SIOCGIFFLAGS, &ifr)) {
sigar_uint64_t flags = ifr.ifr_flags;
#ifdef __linux__
# ifndef IFF_DYNAMIC
# define IFF_DYNAMIC 0x8000 /* not in 2.2 kernel */
# endif /* IFF_DYNAMIC */
int is_mcast = flags & IFF_MULTICAST;
int is_slave = flags & IFF_SLAVE;
int is_master = flags & IFF_MASTER;
int is_dynamic = flags & IFF_DYNAMIC;
/*
* XXX: should just define SIGAR_IFF_*
* and test IFF_* bits on given platform.
* this is the only diff between solaris/hpux/linux
* for the flags we care about.
*
*/
flags &= ~(IFF_MULTICAST|IFF_SLAVE|IFF_MASTER);
if (is_mcast) {
flags |= SIGAR_IFF_MULTICAST;
}
if (is_slave) {
flags |= SIGAR_IFF_SLAVE;
}
if (is_master) {
flags |= SIGAR_IFF_MASTER;
}
if (is_dynamic) {
flags |= SIGAR_IFF_DYNAMIC;
}
#endif
ifconfig->flags = flags;
}
else {
/* should always be able to get flags for existing device */
/* other ioctls may fail if device is not enabled: ok */
close(sock);
return errno;
}
if (ifconfig->flags & IFF_LOOPBACK) {
sigar_net_address_set(ifconfig->destination,
ifconfig->address.addr.in);
sigar_net_address_set(ifconfig->broadcast, 0);
sigar_hwaddr_set_null(ifconfig);
SIGAR_SSTRCPY(ifconfig->type,
SIGAR_NIC_LOOPBACK);
}
else {
if (!ioctl(sock, SIOCGIFDSTADDR, &ifr)) {
sigar_net_address_set(ifconfig->destination,
ifr_s_addr(ifr));
}
if (!ioctl(sock, SIOCGIFBRDADDR, &ifr)) {
sigar_net_address_set(ifconfig->broadcast,
ifr_s_addr(ifr));
}
#if defined(SIOCGIFHWADDR)
if (!ioctl(sock, SIOCGIFHWADDR, &ifr)) {
get_interface_type(ifconfig,
ifr.ifr_hwaddr.sa_family);
sigar_net_address_mac_set(ifconfig->hwaddr,
ifr.ifr_hwaddr.sa_data,
IFHWADDRLEN);
}
#elif defined(_AIX) || defined(__osf__)
hwaddr_aix_lookup(sigar, ifconfig);
SIGAR_SSTRCPY(ifconfig->type,
SIGAR_NIC_ETHERNET);
#else
hwaddr_arp_lookup(ifconfig, sock);
SIGAR_SSTRCPY(ifconfig->type,
SIGAR_NIC_ETHERNET);
#endif
}
#if defined(SIOCGLIFMTU) && !defined(__hpux)
{
struct lifreq lifr;
SIGAR_SSTRCPY(lifr.lifr_name, name);
if(!ioctl(sock, SIOCGLIFMTU, &lifr)) {
ifconfig->mtu = lifr.lifr_mtu;
}
}
#elif defined(SIOCGIFMTU)
if (!ioctl(sock, SIOCGIFMTU, &ifr)) {
# if defined(__hpux)
ifconfig->mtu = ifr.ifr_metric;
# else
ifconfig->mtu = ifr.ifr_mtu;
#endif
}
#else
ifconfig->mtu = 0; /*XXX*/
#endif
if (!ioctl(sock, SIOCGIFMETRIC, &ifr)) {
ifconfig->metric = ifr.ifr_metric ? ifr.ifr_metric : 1;
}
#if defined(SIOCGIFTXQLEN)
if (!ioctl(sock, SIOCGIFTXQLEN, &ifr)) {
ifconfig->tx_queue_len = ifr.ifr_qlen;
}
else {
ifconfig->tx_queue_len = -1; /* net-tools behaviour */
}
#else
ifconfig->tx_queue_len = -1;
#endif
close(sock);
/* XXX can we get a better description like win32? */
SIGAR_SSTRCPY(ifconfig->description,
ifconfig->name);
sigar_net_interface_ipv6_config_init(ifconfig);
sigar_net_interface_ipv6_config_get(sigar, name, ifconfig);
return SIGAR_OK;
}
#ifdef _AIX
# define MY_SIOCGIFCONF CSIOCGIFCONF
#else
# define MY_SIOCGIFCONF SIOCGIFCONF
#endif
#ifdef __osf__
static int sigar_netif_configured(sigar_t *sigar, char *name)
{
int status;
sigar_net_interface_config_t ifconfig;
status = sigar_net_interface_config_get(sigar, name, &ifconfig);
return status == SIGAR_OK;
}
#endif
#ifdef __linux__
static SIGAR_INLINE int has_interface(sigar_net_interface_list_t *iflist,
char *name)
{
register int i;
register int num = iflist->number;
register char **data = iflist->data;
for (i=0; i<num; i++) {
if (strEQ(name, data[i])) {
return 1;
}
}
return 0;
}
static int proc_net_interface_list_get(sigar_t *sigar,
sigar_net_interface_list_t *iflist)
{
/* certain interfaces such as VMware vmnic
* are not returned by ioctl(SIOCGIFCONF).
* check /proc/net/dev for any ioctl missed.
*/
char buffer[BUFSIZ];
FILE *fp = fopen("/proc/net/dev", "r");
if (!fp) {
return errno;
}
/* skip header */
fgets(buffer, sizeof(buffer), fp);
fgets(buffer, sizeof(buffer), fp);
while (fgets(buffer, sizeof(buffer), fp)) {
char *ptr, *dev;
dev = buffer;
while (isspace(*dev)) {
dev++;
}
if (!(ptr = strchr(dev, ':'))) {
continue;
}
*ptr++ = 0;
if (has_interface(iflist, dev)) {
continue;
}
SIGAR_NET_IFLIST_GROW(iflist);
iflist->data[iflist->number++] =
sigar_strdup(dev);
}
fclose(fp);
return SIGAR_OK;
}
#endif
int sigar_net_interface_list_get(sigar_t *sigar,
sigar_net_interface_list_t *iflist)
{
int n, lastlen=0;
struct ifreq *ifr;
struct ifconf ifc;
int sock = socket(AF_INET, SOCK_DGRAM, 0);
if (sock < 0) {
return errno;
}
for (;;) {
if (!sigar->ifconf_buf || lastlen) {
sigar->ifconf_len += sizeof(struct ifreq) * SIGAR_NET_IFLIST_MAX;
sigar->ifconf_buf = realloc(sigar->ifconf_buf, sigar->ifconf_len);
}
ifc.ifc_len = sigar->ifconf_len;
ifc.ifc_buf = sigar->ifconf_buf;
if (ioctl(sock, MY_SIOCGIFCONF, &ifc) < 0) {
/* EINVAL should mean num_interfaces > ifc.ifc_len */
if ((errno != EINVAL) ||
(lastlen == ifc.ifc_len))
{
free(ifc.ifc_buf);
return errno;
}
}
if (ifc.ifc_len < sigar->ifconf_len) {
break; /* got em all */
}
if (ifc.ifc_len != lastlen) {
/* might be more */
lastlen = ifc.ifc_len;
continue;
}
break;
}
close(sock);
iflist->number = 0;
iflist->size = ifc.ifc_len;
iflist->data = malloc(sizeof(*(iflist->data)) *
iflist->size);
ifr = ifc.ifc_req;
for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq), ifr++) {
#if defined(_AIX) || defined(__osf__) /* pass the bourbon */
if (ifr->ifr_addr.sa_family != AF_LINK) {
/* XXX: dunno if this is right.
* otherwise end up with two 'en0' and three 'lo0'
* with the same ip address.
*/
continue;
}
# ifdef __osf__
/* weed out "sl0", "tun0" and the like */
/* XXX must be a better way to check this */
if (!sigar_netif_configured(sigar, ifr->ifr_name)) {
continue;
}
# endif
#endif
iflist->data[iflist->number++] =
sigar_strdup(ifr->ifr_name);
}
#ifdef __linux__
proc_net_interface_list_get(sigar, iflist);
#endif
return SIGAR_OK;
}
#endif /* WIN32 */
SIGAR_DECLARE(int)
sigar_net_interface_config_primary_get(sigar_t *sigar,
sigar_net_interface_config_t *ifconfig)
{
int i, status, found=0;
sigar_net_interface_list_t iflist;
sigar_net_interface_config_t possible_config;
possible_config.flags = 0;
if ((status = sigar_net_interface_list_get(sigar, &iflist)) != SIGAR_OK) {
return status;
}
for (i=0; i<iflist.number; i++) {
status = sigar_net_interface_config_get(sigar,
iflist.data[i], ifconfig);
if ((status != SIGAR_OK) ||
(ifconfig->flags & SIGAR_IFF_LOOPBACK) ||
!ifconfig->hwaddr.addr.in) /* no mac address */
{
continue;
}
if (!possible_config.flags) {
/* save for later for use if we're not connected to the net
* or all interfaces are aliases (e.g. solaris zone)
*/
memcpy(&possible_config, ifconfig, sizeof(*ifconfig));
}
if (!ifconfig->address.addr.in) {
continue; /* no ip address */
}
if (strchr(iflist.data[i], ':')) {
continue; /* alias */
}
found = 1;
break;
}
sigar_net_interface_list_destroy(sigar, &iflist);
if (found) {
return SIGAR_OK;
}
else if (possible_config.flags) {
memcpy(ifconfig, &possible_config, sizeof(*ifconfig));
return SIGAR_OK;
}
else {
return SIGAR_ENXIO;
}
}
static int fqdn_ip_get(sigar_t *sigar, char *name)
{
sigar_net_interface_config_t ifconfig;
int status;
status = sigar_net_interface_config_primary_get(sigar, &ifconfig);
if (status != SIGAR_OK) {
return status;
}
if (!ifconfig.address.addr.in) {
return SIGAR_ENXIO;
}
sigar_net_address_to_string(sigar, &ifconfig.address, name);
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] using ip address '%s' for fqdn",
name);
return SIGAR_OK;
}
struct hostent *sigar_gethostbyname(const char *name,
sigar_hostent_t *data)
{
struct hostent *hp = NULL;
#if defined(__linux__)
gethostbyname_r(name, &data->hs,
data->buffer, sizeof(data->buffer),
&hp, &data->error);
#elif defined(__sun)
hp = gethostbyname_r(name, &data->hs,
data->buffer, sizeof(data->buffer),
&data->error);
#elif defined(SIGAR_HAS_HOSTENT_DATA)
if (gethostbyname_r(name, &data->hs, &data->hd) == 0) {
hp = &data->hs;
}
else {
data->error = h_errno;
}
#else
hp = gethostbyname(name);
#endif
return hp;
}
static struct hostent *sigar_gethostbyaddr(const char *addr,
int len, int type,
sigar_hostent_t *data)
{
struct hostent *hp = NULL;
#if defined(__linux__)
gethostbyaddr_r(addr, len, type,
&data->hs,
data->buffer, sizeof(data->buffer),
&hp, &data->error);
#elif defined(__sun)
hp = gethostbyaddr_r(addr, len, type,
&data->hs,
data->buffer, sizeof(data->buffer),
&data->error);
#elif defined(SIGAR_HAS_HOSTENT_DATA)
if (gethostbyaddr_r((char *)addr, len, type,
&data->hs, &data->hd) == 0)
{
hp = &data->hs;
}
else {
data->error = h_errno;
}
#else
if (!(hp = gethostbyaddr(addr, len, type))) {
data->error = h_errno;
}
#endif
return hp;
}
#define IS_FQDN(name) \
(name && strchr(name, '.'))
#define IS_FQDN_MATCH(lookup, name) \
(IS_FQDN(lookup) && strnEQ(lookup, name, strlen(name)))
#define FQDN_SET(fqdn) \
SIGAR_STRNCPY(name, fqdn, namelen)
SIGAR_DECLARE(int) sigar_fqdn_get(sigar_t *sigar, char *name, int namelen)
{
register int is_debug = SIGAR_LOG_IS_DEBUG(sigar);
sigar_hostent_t data;
struct hostent *p;
char domain[SIGAR_FQDN_LEN + 1];
#ifdef WIN32
int status = sigar_wsa_init(sigar);
if (status != SIGAR_OK) {
return status;
}
#endif
if (gethostname(name, namelen - 1) != 0) {
sigar_log_printf(sigar, SIGAR_LOG_ERROR,
"[fqdn] gethostname failed: %s",
sigar_strerror(sigar, errno));
return errno;
}
else {
if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] gethostname()=='%s'",
name);
}
}
if (!(p = sigar_gethostbyname(name, &data))) {
if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] gethostbyname(%s) failed: %s",
name, sigar_strerror(sigar, errno));
}
if (!IS_FQDN(name)) {
fqdn_ip_get(sigar, name);
}
return SIGAR_OK;
}
if (IS_FQDN_MATCH(p->h_name, name)) {
FQDN_SET(p->h_name);
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] resolved using gethostbyname.h_name");
return SIGAR_OK;
}
else {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] unresolved using gethostbyname.h_name");
}
if (p->h_aliases) {
int i;
for (i=0; p->h_aliases[i]; i++) {
if (IS_FQDN_MATCH(p->h_aliases[i], name)) {
FQDN_SET(p->h_aliases[i]);
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] resolved using gethostbyname.h_aliases");
return SIGAR_OK;
}
else if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] gethostbyname(%s).alias[%d]=='%s'",
name, i, p->h_aliases[i]);
}
}
}
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] unresolved using gethostbyname.h_aliases");
if (p->h_addr_list) {
int i,j;
for (i=0; p->h_addr_list[i]; i++) {
char addr[SIGAR_INET6_ADDRSTRLEN];
struct in_addr *in =
(struct in_addr *)p->h_addr_list[i];
struct hostent *q =
sigar_gethostbyaddr(p->h_addr_list[i],
p->h_length,
p->h_addrtype,
&data);
if (is_debug) {
sigar_inet_ntoa(sigar, in->s_addr, addr);
}
if (!q) {
if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] gethostbyaddr(%s) failed: %s",
addr,
sigar_strerror(sigar, errno));
}
continue;
}
if (IS_FQDN_MATCH(q->h_name, name)) {
FQDN_SET(q->h_name);
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] resolved using gethostbyaddr.h_name");
return SIGAR_OK;
}
else {
if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] gethostbyaddr(%s)=='%s'",
addr, q->h_name);
}
for (j=0; q->h_aliases[j]; j++) {
if (IS_FQDN_MATCH(q->h_aliases[j], name)) {
FQDN_SET(q->h_aliases[j]);
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] resolved using "
"gethostbyaddr.h_aliases");
return SIGAR_OK;
}
else if (is_debug) {
sigar_log_printf(sigar, SIGAR_LOG_DEBUG,
"[fqdn] gethostbyaddr(%s).alias[%d]=='%s'",
addr, j, q->h_aliases[j]);
}
}
}
}
}
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] unresolved using gethostbyname.h_addr_list");
#if !defined(WIN32) && !defined(NETWARE)
if (!IS_FQDN(name) && /* e.g. aix gethostname is already fqdn */
(getdomainname(domain, sizeof(domain) - 1) == 0) &&
(domain[0] != '\0') &&
(domain[0] != '(')) /* linux default is "(none)" */
{
/* sprintf(name, "%s.%s", name, domain); */
char *ptr = name;
int len = strlen(name);
ptr += len;
*ptr++ = '.';
namelen -= (len+1);
SIGAR_STRNCPY(ptr, domain, namelen);
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] resolved using getdomainname");
}
else {
sigar_log(sigar, SIGAR_LOG_DEBUG,
"[fqdn] getdomainname failed");
}
#endif
if (!IS_FQDN(name)) {
fqdn_ip_get(sigar, name);
}
return SIGAR_OK;
}
#ifndef MAX_STRING_LEN
#define MAX_STRING_LEN 8192
#endif
#ifdef WIN32
/* The windows version of getPasswordNative was lifted from apr */
SIGAR_DECLARE(char *) sigar_password_get(const char *prompt)
{
static char password[MAX_STRING_LEN];
int n = 0;
int ch;
fputs(prompt, stderr);
fflush(stderr);
while ((ch = _getch()) != '\r') {
if (ch == EOF) /* EOF */ {
return NULL;
}
else if (ch == 0 || ch == 0xE0) {
/* FN Keys (0 or E0) are a sentinal for a FN code */
ch = (ch << 4) | _getch();
/* Catch {DELETE}, {<--}, Num{DEL} and Num{<--} */
if ((ch == 0xE53 || ch == 0xE4B || ch == 0x053 || ch == 0x04b) && n) {
password[--n] = '\0';
fputs("\b \b", stderr);
fflush(stderr);
}
else {
fputc('\a', stderr);
fflush(stderr);
}
}
else if ((ch == '\b' || ch == 127) && n) /* BS/DEL */ {
password[--n] = '\0';
fputs("\b \b", stderr);
fflush(stderr);
}
else if (ch == 3) /* CTRL+C */ {
/* _getch() bypasses Ctrl+C but not Ctrl+Break detection! */
fputs("^C\n", stderr);
fflush(stderr);
exit(-1);
}
else if (ch == 26) /* CTRL+Z */ {
fputs("^Z\n", stderr);
fflush(stderr);
return NULL;
}
else if (ch == 27) /* ESC */ {
fputc('\n', stderr);
fputs(prompt, stderr);
fflush(stderr);
n = 0;
}
else if ((n < sizeof(password) - 1) && !iscntrl(ch)) {
password[n++] = ch;
fputc(' ', stderr);
fflush(stderr);
}
else {
fputc('\a', stderr);
fflush(stderr);
}
}
fputc('\n', stderr);
fflush(stderr);
password[n] = '\0';
return password;
}
#else
/* linux/hpux/solaris getpass() prototype lives here */
#include <unistd.h>
#include <termios.h>
/* from apr_getpass.c */
#if defined(SIGAR_HPUX)
# define getpass termios_getpass
#elif defined(SIGAR_SOLARIS)
# define getpass getpassphrase
#endif
#ifdef SIGAR_HPUX
static char *termios_getpass(const char *prompt)
{
struct termios attr;
static char password[MAX_STRING_LEN];
unsigned int n=0;
fputs(prompt, stderr);
fflush(stderr);
if (tcgetattr(STDIN_FILENO, &attr) != 0) {
return NULL;
}
attr.c_lflag &= ~(ECHO);
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &attr) != 0) {
return NULL;
}
while ((password[n] = getchar()) != '\n') {
if (n < (sizeof(password) - 1) &&
(password[n] >= ' ') &&
(password[n] <= '~'))
{
n++;
}
else {
fprintf(stderr, "\n");
fputs(prompt, stderr);
fflush(stderr);
n = 0;
}
}
password[n] = '\0';
printf("\n");
if (n > (MAX_STRING_LEN - 1)) {
password[MAX_STRING_LEN - 1] = '\0';
}
attr.c_lflag |= ECHO;
tcsetattr(STDIN_FILENO, TCSANOW, &attr);
return (char *)&password;
}
#endif
SIGAR_DECLARE(char *) sigar_password_get(const char *prompt)
{
char *buf = NULL;
/* the linux version of getpass prints the prompt to the tty; ok.
* the solaris version prints the prompt to stderr; not ok.
* so print the prompt to /dev/tty ourselves if possible (always should be)
*/
FILE *tty = NULL;
if ((tty = fopen("/dev/tty", "w"))) {
fprintf(tty, "%s", prompt);
fflush(tty);
buf = getpass(tty ? "" : prompt);
fclose(tty);
}
return buf;
}
#endif /* WIN32 */
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