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/* |
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* i-scream central monitoring system |
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* http://www.i-scream.org |
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* Copyright (C) 2000-2004 i-scream |
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* |
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* This library is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* This library is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this library; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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* 02111-1307 USA |
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* |
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* $Id: network_stats.c,v 1.35 2004/02/13 18:45:43 pajs Exp $ |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include "config.h" |
26 |
#endif |
27 |
|
28 |
#include <stdlib.h> |
29 |
#include <string.h> |
30 |
#include "statgrab.h" |
31 |
#include <time.h> |
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#ifdef SOLARIS |
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#include <kstat.h> |
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#include <sys/sysinfo.h> |
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#endif |
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#ifdef LINUX |
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#include <stdio.h> |
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#include <sys/types.h> |
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#include <regex.h> |
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#include <sys/ioctl.h> |
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#include <sys/socket.h> |
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#include <net/if.h> |
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#include <ctype.h> |
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#include "tools.h" |
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/* Stuff which could be defined by defining KERNEL, but |
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* that would be a bad idea, so we'll just declare it here |
47 |
*/ |
48 |
typedef __uint8_t u8; |
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typedef __uint16_t u16; |
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typedef __uint32_t u32; |
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#include <linux/ethtool.h> |
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#include <linux/sockios.h> |
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#include <unistd.h> |
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#endif |
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#ifdef ALLBSD |
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#include <sys/types.h> |
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#include <sys/socket.h> |
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#include <ifaddrs.h> |
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#include <net/if.h> |
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#include <net/if_media.h> |
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#include <sys/ioctl.h> |
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#endif |
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|
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static network_stat_t *network_stats=NULL; |
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static int interfaces=0; |
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|
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void network_stat_init(int start, int end, network_stat_t *net_stats){ |
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|
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for(net_stats+=start; start<end; start++){ |
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net_stats->interface_name=NULL; |
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net_stats->tx=0; |
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net_stats->rx=0; |
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net_stats++; |
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} |
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} |
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|
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network_stat_t *network_stat_malloc(int needed_entries, int *cur_entries, network_stat_t *net_stats){ |
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|
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if(net_stats==NULL){ |
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|
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if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){ |
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return NULL; |
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} |
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network_stat_init(0, needed_entries, net_stats); |
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*cur_entries=needed_entries; |
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|
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return net_stats; |
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} |
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|
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|
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if(*cur_entries<needed_entries){ |
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net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries)); |
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if(net_stats==NULL){ |
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return NULL; |
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} |
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network_stat_init(*cur_entries, needed_entries, net_stats); |
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*cur_entries=needed_entries; |
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} |
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|
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return net_stats; |
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} |
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|
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|
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network_stat_t *get_network_stats(int *entries){ |
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|
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static int sizeof_network_stats=0; |
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network_stat_t *network_stat_ptr; |
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|
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#ifdef SOLARIS |
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kstat_ctl_t *kc; |
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kstat_t *ksp; |
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kstat_named_t *knp; |
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#endif |
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|
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#ifdef LINUX |
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FILE *f; |
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/* Horrible big enough, but it should be easily big enough */ |
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char line[8096]; |
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regex_t regex; |
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regmatch_t line_match[4]; |
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#endif |
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#ifdef ALLBSD |
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struct ifaddrs *net, *net_ptr; |
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struct if_data *net_data; |
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#endif |
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|
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#ifdef ALLBSD |
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if(getifaddrs(&net) != 0){ |
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return NULL; |
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} |
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|
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interfaces=0; |
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|
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for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){ |
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if(net_ptr->ifa_addr->sa_family != AF_LINK) continue; |
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network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats); |
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if(network_stats==NULL){ |
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return NULL; |
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} |
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network_stat_ptr=network_stats+interfaces; |
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|
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if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name); |
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network_stat_ptr->interface_name=strdup(net_ptr->ifa_name); |
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if(network_stat_ptr->interface_name==NULL) return NULL; |
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net_data=(struct if_data *)net_ptr->ifa_data; |
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network_stat_ptr->rx=net_data->ifi_ibytes; |
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network_stat_ptr->tx=net_data->ifi_obytes; |
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network_stat_ptr->systime=time(NULL); |
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interfaces++; |
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} |
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freeifaddrs(net); |
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#endif |
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|
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#ifdef SOLARIS |
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if ((kc = kstat_open()) == NULL) { |
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return NULL; |
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} |
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|
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interfaces=0; |
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|
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for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
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if (!strcmp(ksp->ks_class, "net")) { |
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kstat_read(kc, ksp, NULL); |
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|
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#ifdef SOL7 |
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#define RLOOKUP "rbytes" |
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#define WLOOKUP "obytes" |
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#define VALTYPE value.ui32 |
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#else |
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#define RLOOKUP "rbytes64" |
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#define WLOOKUP "obytes64" |
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#define VALTYPE value.ui64 |
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#endif |
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|
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if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){ |
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/* Not a network interface, so skip to the next entry */ |
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continue; |
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} |
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|
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network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats); |
181 |
if(network_stats==NULL){ |
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return NULL; |
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} |
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network_stat_ptr=network_stats+interfaces; |
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network_stat_ptr->rx=knp->VALTYPE; |
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|
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if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){ |
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/* Not a network interface, so skip to the next entry */ |
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continue; |
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} |
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network_stat_ptr->tx=knp->VALTYPE; |
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if(network_stat_ptr->interface_name!=NULL){ |
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free(network_stat_ptr->interface_name); |
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} |
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network_stat_ptr->interface_name=strdup(ksp->ks_name); |
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|
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network_stat_ptr->systime=time(NULL); |
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interfaces++; |
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} |
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} |
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|
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kstat_close(kc); |
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#endif |
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#ifdef LINUX |
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f=fopen("/proc/net/dev", "r"); |
206 |
if(f==NULL){ |
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return NULL; |
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} |
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/* read the 2 lines.. Its the title, so we dont care :) */ |
210 |
fgets(line, sizeof(line), f); |
211 |
fgets(line, sizeof(line), f); |
212 |
|
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|
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if((regcomp(®ex, "^[[:space:]]*([^:]+):[[:space:]]*([[:digit:]]+)[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+([[:digit:]]+)", REG_EXTENDED))!=0){ |
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return NULL; |
216 |
} |
217 |
|
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interfaces=0; |
219 |
|
220 |
while((fgets(line, sizeof(line), f)) != NULL){ |
221 |
if((regexec(®ex, line, 4, line_match, 0))!=0){ |
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continue; |
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} |
224 |
network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats); |
225 |
if(network_stats==NULL){ |
226 |
return NULL; |
227 |
} |
228 |
network_stat_ptr=network_stats+interfaces; |
229 |
|
230 |
if(network_stat_ptr->interface_name!=NULL){ |
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free(network_stat_ptr->interface_name); |
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} |
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|
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network_stat_ptr->interface_name=get_string_match(line, &line_match[1]); |
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network_stat_ptr->rx=get_ll_match(line, &line_match[2]); |
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network_stat_ptr->tx=get_ll_match(line, &line_match[3]); |
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network_stat_ptr->systime=time(NULL); |
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|
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interfaces++; |
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} |
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fclose(f); |
242 |
regfree(®ex); |
243 |
|
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#endif |
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|
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#ifdef CYGWIN |
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return NULL; |
248 |
#endif |
249 |
|
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*entries=interfaces; |
251 |
|
252 |
return network_stats; |
253 |
} |
254 |
|
255 |
long long transfer_diff(long long new, long long old){ |
256 |
#if defined(SOL7) || defined(LINUX) || defined(FREEBSD) |
257 |
#define MAXVAL 4294967296LL |
258 |
#else |
259 |
#define MAXVAL 18446744073709551616LL |
260 |
#endif |
261 |
long long result; |
262 |
if(new>=old){ |
263 |
result = (new-old); |
264 |
}else{ |
265 |
result = (MAXVAL+(new-old)); |
266 |
} |
267 |
|
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return result; |
269 |
|
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} |
271 |
|
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network_stat_t *get_network_stats_diff(int *entries) { |
273 |
static network_stat_t *diff = NULL; |
274 |
static int diff_count = 0; |
275 |
network_stat_t *src, *dest; |
276 |
int i, j, new_count; |
277 |
|
278 |
if (network_stats == NULL) { |
279 |
/* No previous stats, so we can't calculate a difference. */ |
280 |
return get_network_stats(entries); |
281 |
} |
282 |
|
283 |
/* Resize the results array to match the previous stats. */ |
284 |
diff = network_stat_malloc(interfaces, &diff_count, diff); |
285 |
if (diff == NULL) { |
286 |
return NULL; |
287 |
} |
288 |
|
289 |
/* Copy the previous stats into the result. */ |
290 |
for (i = 0; i < diff_count; i++) { |
291 |
src = &network_stats[i]; |
292 |
dest = &diff[i]; |
293 |
|
294 |
if (dest->interface_name != NULL) { |
295 |
free(dest->interface_name); |
296 |
} |
297 |
dest->interface_name = strdup(src->interface_name); |
298 |
dest->rx = src->rx; |
299 |
dest->tx = src->tx; |
300 |
dest->systime = src->systime; |
301 |
} |
302 |
|
303 |
/* Get a new set of stats. */ |
304 |
if (get_network_stats(&new_count) == NULL) { |
305 |
return NULL; |
306 |
} |
307 |
|
308 |
/* For each previous stat... */ |
309 |
for (i = 0; i < diff_count; i++) { |
310 |
dest = &diff[i]; |
311 |
|
312 |
/* ... find the corresponding new stat ... */ |
313 |
for (j = 0; j < new_count; j++) { |
314 |
/* Try the new stat in the same position first, |
315 |
since that's most likely to be it. */ |
316 |
src = &network_stats[(i + j) % new_count]; |
317 |
if (strcmp(src->interface_name, dest->interface_name) == 0) { |
318 |
break; |
319 |
} |
320 |
} |
321 |
if (j == new_count) { |
322 |
/* No match found. */ |
323 |
continue; |
324 |
} |
325 |
|
326 |
/* ... and subtract the previous stat from it to get the |
327 |
difference. */ |
328 |
dest->rx = transfer_diff(src->rx, dest->rx); |
329 |
dest->tx = transfer_diff(src->tx, dest->tx); |
330 |
dest->systime = src->systime - dest->systime; |
331 |
} |
332 |
|
333 |
*entries = diff_count; |
334 |
return diff; |
335 |
} |
336 |
/* NETWORK INTERFACE STATS */ |
337 |
|
338 |
void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){ |
339 |
|
340 |
for(net_stats+=start; start<end; start++){ |
341 |
net_stats->interface_name=NULL; |
342 |
net_stats->speed=0; |
343 |
net_stats->dup=UNKNOWN_DUPLEX; |
344 |
net_stats++; |
345 |
} |
346 |
} |
347 |
|
348 |
network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){ |
349 |
|
350 |
if(net_stats==NULL){ |
351 |
|
352 |
if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){ |
353 |
return NULL; |
354 |
} |
355 |
network_iface_stat_init(0, needed_entries, net_stats); |
356 |
*cur_entries=needed_entries; |
357 |
|
358 |
return net_stats; |
359 |
} |
360 |
|
361 |
|
362 |
if(*cur_entries<needed_entries){ |
363 |
net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries)); |
364 |
if(net_stats==NULL){ |
365 |
return NULL; |
366 |
} |
367 |
network_iface_stat_init(*cur_entries, needed_entries, net_stats); |
368 |
*cur_entries=needed_entries; |
369 |
} |
370 |
|
371 |
return net_stats; |
372 |
} |
373 |
|
374 |
network_iface_stat_t *get_network_iface_stats(int *entries){ |
375 |
static network_iface_stat_t *network_iface_stats; |
376 |
network_iface_stat_t *network_iface_stat_ptr; |
377 |
static int sizeof_network_iface_stats=0; |
378 |
static int ifaces; |
379 |
|
380 |
#ifdef SOLARIS |
381 |
kstat_ctl_t *kc; |
382 |
kstat_t *ksp; |
383 |
kstat_named_t *knp; |
384 |
#endif |
385 |
#ifdef ALLBSD |
386 |
struct ifaddrs *net, *net_ptr; |
387 |
struct ifmediareq ifmed; |
388 |
struct ifreq ifr; |
389 |
int s; |
390 |
int x; |
391 |
#endif |
392 |
#ifdef LINUX |
393 |
FILE *f; |
394 |
/* Horrible big enough, but it should be easily big enough */ |
395 |
char line[8096]; |
396 |
void *eth_tool_cmd_buf; |
397 |
int buf_size; |
398 |
int sock; |
399 |
#endif |
400 |
ifaces = 0; |
401 |
#ifdef ALLBSD |
402 |
if(getifaddrs(&net) != 0){ |
403 |
return NULL; |
404 |
} |
405 |
|
406 |
if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) return NULL; |
407 |
|
408 |
for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){ |
409 |
if(net_ptr->ifa_addr->sa_family != AF_LINK) continue; |
410 |
network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats); |
411 |
if(network_iface_stats==NULL){ |
412 |
return NULL; |
413 |
} |
414 |
network_iface_stat_ptr = network_iface_stats + ifaces; |
415 |
|
416 |
memset(&ifmed, 0, sizeof(struct ifmediareq)); |
417 |
strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name)); |
418 |
if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){ |
419 |
continue; |
420 |
} |
421 |
|
422 |
/* We may need to change this if we start doing wireless devices too */ |
423 |
if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){ |
424 |
/* Not a ETHER device */ |
425 |
continue; |
426 |
} |
427 |
|
428 |
if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name); |
429 |
network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name); |
430 |
if(network_iface_stat_ptr->interface_name == NULL) return NULL; |
431 |
|
432 |
/* Only intrested in the first 4 bits) - Assuming only ETHER devices */ |
433 |
x = ifmed.ifm_active & 0x0f; |
434 |
switch(x){ |
435 |
/* 10 Mbit connections. Speedy :) */ |
436 |
case(IFM_10_T): |
437 |
case(IFM_10_2): |
438 |
case(IFM_10_5): |
439 |
case(IFM_10_STP): |
440 |
case(IFM_10_FL): |
441 |
network_iface_stat_ptr->speed = 10; |
442 |
break; |
443 |
/* 100 Mbit conneections */ |
444 |
case(IFM_100_TX): |
445 |
case(IFM_100_FX): |
446 |
case(IFM_100_T4): |
447 |
case(IFM_100_VG): |
448 |
case(IFM_100_T2): |
449 |
network_iface_stat_ptr->speed = 100; |
450 |
break; |
451 |
/* 1000 Mbit connections */ |
452 |
case(IFM_1000_SX): |
453 |
case(IFM_1000_LX): |
454 |
case(IFM_1000_CX): |
455 |
#if defined(FREEBSD) && !defined(FREEBSD5) |
456 |
case(IFM_1000_TX): |
457 |
case(IFM_1000_FX): |
458 |
#else |
459 |
case(IFM_1000_T): |
460 |
#endif |
461 |
network_iface_stat_ptr->speed = 1000; |
462 |
break; |
463 |
/* We don't know what it is */ |
464 |
default: |
465 |
network_iface_stat_ptr->speed = 0; |
466 |
break; |
467 |
} |
468 |
|
469 |
if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){ |
470 |
network_iface_stat_ptr->dup = FULL_DUPLEX; |
471 |
}else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){ |
472 |
network_iface_stat_ptr->dup = HALF_DUPLEX; |
473 |
}else{ |
474 |
network_iface_stat_ptr->dup = UNKNOWN_DUPLEX; |
475 |
} |
476 |
|
477 |
if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){ |
478 |
continue; |
479 |
} |
480 |
if((ifr.ifr_flags & IFF_UP) != 0){ |
481 |
network_iface_stat_ptr->up = 1; |
482 |
}else{ |
483 |
network_iface_stat_ptr->up = 0; |
484 |
} |
485 |
|
486 |
ifaces++; |
487 |
} |
488 |
freeifaddrs(net); |
489 |
close(s); |
490 |
#endif |
491 |
|
492 |
#ifdef SOLARIS |
493 |
if ((kc = kstat_open()) == NULL) { |
494 |
return NULL; |
495 |
} |
496 |
|
497 |
for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) { |
498 |
if (!strcmp(ksp->ks_class, "net")) { |
499 |
kstat_read(kc, ksp, NULL); |
500 |
if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){ |
501 |
/* Not a network interface, so skip to the next entry */ |
502 |
continue; |
503 |
} |
504 |
network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats); |
505 |
if(network_iface_stats==NULL){ |
506 |
return NULL; |
507 |
} |
508 |
network_iface_stat_ptr = network_iface_stats + ifaces; |
509 |
network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000); |
510 |
|
511 |
if((knp=kstat_data_lookup(ksp, "link_up"))==NULL){ |
512 |
/* Not a network interface, so skip to the next entry */ |
513 |
continue; |
514 |
} |
515 |
/* Solaris has 1 for up, and 0 for not. As we do too */ |
516 |
network_iface_stat_ptr->up = value.ui32; |
517 |
|
518 |
if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){ |
519 |
/* Not a network interface, so skip to the next entry */ |
520 |
continue; |
521 |
} |
522 |
|
523 |
network_iface_stat_ptr->dup = UNKNOWN_DUPLEX; |
524 |
if(knp->value.ui32 == 2){ |
525 |
network_iface_stat_ptr->dup = FULL_DUPLEX; |
526 |
} |
527 |
if(knp->value.ui32 == 1){ |
528 |
network_iface_stat_ptr->dup = HALF_DUPLEX; |
529 |
} |
530 |
|
531 |
if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name); |
532 |
network_iface_stat_ptr->interface_name = strdup(ksp->ks_name); |
533 |
if(network_iface_stat_ptr->interface_name == NULL) return NULL; |
534 |
ifaces++; |
535 |
} |
536 |
} |
537 |
kstat_close(kc); |
538 |
|
539 |
#endif |
540 |
#ifdef LINUX |
541 |
|
542 |
f = fopen("/proc/net/dev", "r"); |
543 |
if(f == NULL){ |
544 |
return NULL; |
545 |
} |
546 |
|
547 |
/* Setup stuff so we can do the ioctl to get the info */ |
548 |
if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){ |
549 |
return NULL; |
550 |
} |
551 |
|
552 |
buf_size = sizeof(struct ethtool_cmd); |
553 |
eth_tool_cmd_buf = malloc(buf_size); |
554 |
if(eth_tool_cmd_buf == NULL) return NULL; |
555 |
|
556 |
/* Ignore first 2 lines.. Just headings */ |
557 |
if((fgets(line, sizeof(line), f)) == NULL) return NULL; |
558 |
if((fgets(line, sizeof(line), f)) == NULL) return NULL; |
559 |
|
560 |
while((fgets(line, sizeof(line), f)) != NULL){ |
561 |
char *name, *ptr; |
562 |
struct ifreq ifr; |
563 |
struct ethtool_cmd *ethcmd; |
564 |
int err; |
565 |
|
566 |
/* Get the interface name */ |
567 |
ptr = strchr(line, ':'); |
568 |
if (ptr == NULL) continue; |
569 |
*ptr='\0'; |
570 |
name = line; |
571 |
while(isspace(*(name))){ |
572 |
name++; |
573 |
} |
574 |
|
575 |
memset(&ifr, 0, sizeof(ifr)); |
576 |
memset(eth_tool_cmd_buf, 0, buf_size); |
577 |
ifr.ifr_data = (caddr_t) eth_tool_cmd_buf; |
578 |
strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name)); |
579 |
|
580 |
ethcmd = (struct ethtool_cmd *) ifr.ifr_data; |
581 |
ethcmd->cmd = ETHTOOL_GSET; |
582 |
|
583 |
err = ioctl(sock, SIOCETHTOOL, &ifr); |
584 |
if(err < 0){ |
585 |
/* This could fail if the interface doesn't support the command. Carry |
586 |
* on to the next :) |
587 |
*/ |
588 |
continue; |
589 |
} |
590 |
|
591 |
/* We have a good interface to add */ |
592 |
network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats); |
593 |
if(network_iface_stats==NULL){ |
594 |
return NULL; |
595 |
} |
596 |
network_iface_stat_ptr = network_iface_stats + ifaces; |
597 |
network_iface_stat_ptr->interface_name = strdup(name); |
598 |
network_iface_stat_ptr->speed = ethcmd->speed; |
599 |
if((ifr.ifr_flags & IFF_UP) != 0){ |
600 |
network_iface_stat_ptr->up = 1; |
601 |
}else{ |
602 |
network_iface_stat_ptr->up = 0; |
603 |
} |
604 |
|
605 |
network_iface_stat_ptr->dup = UNKNOWN_DUPLEX; |
606 |
if(ethcmd->duplex == 0x00){ |
607 |
network_iface_stat_ptr->dup = FULL_DUPLEX; |
608 |
} |
609 |
if(ethcmd->duplex == 0x01){ |
610 |
network_iface_stat_ptr->dup = HALF_DUPLEX; |
611 |
} |
612 |
ifaces++; |
613 |
} |
614 |
close(sock); |
615 |
free(eth_tool_cmd_buf); |
616 |
#endif |
617 |
*entries = ifaces; |
618 |
return network_iface_stats; |
619 |
} |
620 |
|