src/libstatgrab/network_stats.c

/*
 * i-scream central monitoring system
 * http://www.i-scream.org
 * Copyright (C) 2000-2004 i-scream
 * 
 * This library 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 library 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.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
 * 02111-1307 USA
 *
 * $Id: network_stats.c,v 1.46 2004/03/06 19:04:29 tdb Exp $
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <stdlib.h>
#include <string.h>
#include "statgrab.h"
#include <time.h>
#ifdef SOLARIS
#include <kstat.h>
#include <sys/sysinfo.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <net/if.h>
#include <netinet/in.h>
#include <sys/sockio.h>
#endif
#ifdef LINUX
#include <stdio.h>
#include <sys/types.h>
#include <regex.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <net/if.h>
#include <ctype.h>
#include "tools.h"
/* Stuff which could be defined by defining KERNEL, but 
 * that would be a bad idea, so we'll just declare it here
 */
typedef __uint8_t u8;
typedef __uint16_t u16;
typedef __uint32_t u32;
typedef __uint64_t u64;
#include <linux/ethtool.h>
#include <linux/sockios.h>
#include <unistd.h>
#endif
#ifdef ALLBSD
#include <sys/types.h>
#include <sys/socket.h>
#include <ifaddrs.h>
#include <net/if.h>
#include <net/if_media.h>
#include <sys/ioctl.h>
#endif

static network_stat_t *network_stats=NULL;
static int interfaces=0;

void network_stat_init(int start, int end, network_stat_t *net_stats){

        for(net_stats+=start; start<end; start++){
                net_stats->interface_name=NULL;
                net_stats->tx=0;
                net_stats->rx=0;
                net_stats->ipackets=0;
                net_stats->opackets=0;
                net_stats->ierrors=0;
                net_stats->oerrors=0;
                net_stats->collisions=0;
                net_stats++;
        }
}

network_stat_t *network_stat_malloc(int needed_entries, int *cur_entries, network_stat_t *net_stats){

        if(net_stats==NULL){

                if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){
                        return NULL;
                }
                network_stat_init(0, needed_entries, net_stats);
                *cur_entries=needed_entries;

                return net_stats;
        }


        if(*cur_entries<needed_entries){
                net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries));
                if(net_stats==NULL){
                        return NULL;
                }
                network_stat_init(*cur_entries, needed_entries, net_stats);
                *cur_entries=needed_entries;
        }

        return net_stats;
}


network_stat_t *get_network_stats(int *entries){

        static int sizeof_network_stats=0;      
        network_stat_t *network_stat_ptr;

#ifdef SOLARIS
        kstat_ctl_t *kc;
        kstat_t *ksp;
        kstat_named_t *knp;
#endif

#ifdef LINUX
        FILE *f;
        /* Horrible big enough, but it should be easily big enough */
        char line[8096];
        regex_t regex;
        regmatch_t line_match[4];
#endif
#ifdef ALLBSD
        struct ifaddrs *net, *net_ptr;
        struct if_data *net_data;
#endif

#ifdef ALLBSD
        if(getifaddrs(&net) != 0){
                return NULL;
        }

        interfaces=0;
        
        for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
                if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
                network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
                if(network_stats==NULL){
                        return NULL;
                }
                network_stat_ptr=network_stats+interfaces;
                
                if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
                network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
                if(network_stat_ptr->interface_name==NULL) return NULL;
                net_data=(struct if_data *)net_ptr->ifa_data;
                network_stat_ptr->rx=net_data->ifi_ibytes;
                network_stat_ptr->tx=net_data->ifi_obytes;
                network_stat_ptr->ipackets=net_data->ifi_ipackets;
                network_stat_ptr->opackets=net_data->ifi_opackets;
                network_stat_ptr->ierrors=net_data->ifi_ierrors;
                network_stat_ptr->oerrors=net_data->ifi_oerrors;
                network_stat_ptr->collisions=net_data->ifi_collisions;
                network_stat_ptr->systime=time(NULL);
                interfaces++;
        }
        freeifaddrs(net);       
#endif

#ifdef SOLARIS
        if ((kc = kstat_open()) == NULL) {
                return NULL;
        }

        interfaces=0;

        for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
                if (!strcmp(ksp->ks_class, "net")) {
                        kstat_read(kc, ksp, NULL);

#ifdef SOL7
#define RLOOKUP "rbytes"
#define WLOOKUP "obytes"
#define VALTYPE value.ui32
#else
#define RLOOKUP "rbytes64"
#define WLOOKUP "obytes64"
#define VALTYPE value.ui64
#endif

                        if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){
                                /* This is a network interface, but it doesn't
                                 * have the rbytes/obytes values; for instance,
                                 * the loopback devices have this behaviour
                                 * (although they do track packets in/out). */
                                continue;
                        }

                        network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
                        if(network_stats==NULL){
                                return NULL;
                        }
                        network_stat_ptr=network_stats+interfaces;
                        network_stat_ptr->rx=knp->VALTYPE;

                        if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){
                                continue;
                        }
                        network_stat_ptr->tx=knp->VALTYPE;
                        if(network_stat_ptr->interface_name!=NULL){
                                free(network_stat_ptr->interface_name);
                        }
                        network_stat_ptr->interface_name=strdup(ksp->ks_name);

                        network_stat_ptr->systime=time(NULL);
                        interfaces++;
                }
        }
                
        kstat_close(kc);        
#endif
#ifdef LINUX
        f=fopen("/proc/net/dev", "r");
        if(f==NULL){
                return NULL;
        }
        /* read the 2 lines.. Its the title, so we dont care :) */
        fgets(line, sizeof(line), f);
        fgets(line, sizeof(line), f);


        if((regcomp(&regex, "^[[:space:]]*([^:]+):[[:space:]]*([[:digit:]]+)[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+([[:digit:]]+)", REG_EXTENDED))!=0){
                return NULL;
        }

        interfaces=0;

        while((fgets(line, sizeof(line), f)) != NULL){
                if((regexec(&regex, line, 4, line_match, 0))!=0){
                        continue;
                }
                network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
                if(network_stats==NULL){
                        return NULL;
                }
                network_stat_ptr=network_stats+interfaces;

                if(network_stat_ptr->interface_name!=NULL){
                        free(network_stat_ptr->interface_name);
                }

                network_stat_ptr->interface_name=get_string_match(line, &line_match[1]);
                network_stat_ptr->rx=get_ll_match(line, &line_match[2]);
                network_stat_ptr->tx=get_ll_match(line, &line_match[3]);
                network_stat_ptr->systime=time(NULL);

                interfaces++;
        }
        fclose(f);
        regfree(&regex);

#endif

#ifdef CYGWIN
        return NULL;
#endif

        *entries=interfaces;

        return network_stats;   
}

long long transfer_diff(long long new, long long old){
#if defined(SOL7) || defined(LINUX) || defined(FREEBSD) || defined(DFBSD)
#define MAXVAL 4294967296LL
#else
#define MAXVAL 18446744073709551616LL
#endif
        long long result;
        if(new>=old){
                result = (new-old);
        }else{
                result = (MAXVAL+(new-old));
        }

        return result;

}

network_stat_t *get_network_stats_diff(int *entries) {
        static network_stat_t *diff = NULL;
        static int diff_count = 0;
        network_stat_t *src, *dest;
        int i, j, new_count;

        if (network_stats == NULL) {
                /* No previous stats, so we can't calculate a difference. */
                return get_network_stats(entries);
        }

        /* Resize the results array to match the previous stats. */
        diff = network_stat_malloc(interfaces, &diff_count, diff);
        if (diff == NULL) {
                return NULL;
        }

        /* Copy the previous stats into the result. */
        for (i = 0; i < diff_count; i++) {
                src = &network_stats[i];
                dest = &diff[i];

                if (dest->interface_name != NULL) {
                        free(dest->interface_name);
                }
                dest->interface_name = strdup(src->interface_name);
                dest->rx = src->rx;
                dest->tx = src->tx;
                dest->ipackets = src->ipackets;
                dest->opackets = src->opackets;
                dest->ierrors = src->ierrors;
                dest->oerrors = src->oerrors;
                dest->collisions = src->collisions;
                dest->systime = src->systime;
        }

        /* Get a new set of stats. */
        if (get_network_stats(&new_count) == NULL) {
                return NULL;
        }

        /* For each previous stat... */
        for (i = 0; i < diff_count; i++) {
                dest = &diff[i];

                /* ... find the corresponding new stat ... */
                for (j = 0; j < new_count; j++) {
                        /* Try the new stat in the same position first,
                           since that's most likely to be it. */
                        src = &network_stats[(i + j) % new_count];
                        if (strcmp(src->interface_name, dest->interface_name) == 0) {
                                break;
                        }
                }
                if (j == new_count) {
                        /* No match found. */
                        continue;
                }

                /* ... and subtract the previous stat from it to get the
                   difference. */
                dest->rx = transfer_diff(src->rx, dest->rx);
                dest->tx = transfer_diff(src->tx, dest->tx);
                dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
                dest->opackets = transfer_diff(src->opackets, dest->opackets);
                dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
                dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
                dest->collisions = transfer_diff(src->collisions, dest->collisions);
                dest->systime = src->systime - dest->systime;
        }

        *entries = diff_count;
        return diff;
}
/* NETWORK INTERFACE STATS */

void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){

        for(net_stats+=start; start<end; start++){
                net_stats->interface_name=NULL;
                net_stats->speed=0;
                net_stats->dup=UNKNOWN_DUPLEX;
                net_stats++;
        }
}

network_iface_stat_t *network_iface_stat_malloc(int needed_entries, int *cur_entries, network_iface_stat_t *net_stats){

        if(net_stats==NULL){

                if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
                        return NULL;
                }
                network_iface_stat_init(0, needed_entries, net_stats);
                *cur_entries=needed_entries;

                return net_stats;
        }


        if(*cur_entries<needed_entries){
                net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
                if(net_stats==NULL){
                        return NULL;
                }
                network_iface_stat_init(*cur_entries, needed_entries, net_stats);
                *cur_entries=needed_entries;
        }

        return net_stats;
}

network_iface_stat_t *get_network_iface_stats(int *entries){
        static network_iface_stat_t *network_iface_stats;
        network_iface_stat_t *network_iface_stat_ptr;
        static int sizeof_network_iface_stats=0;        
        int ifaces = 0;

#ifdef SOLARIS
        kstat_ctl_t *kc;
        kstat_t *ksp;
        kstat_named_t *knp;
        int sock;
#endif
#ifdef ALLBSD
        struct ifaddrs *net, *net_ptr;
        struct ifmediareq ifmed;
        struct ifreq ifr;
        int sock;
        int x;
#endif
#ifdef LINUX
        FILE *f;
        /* Horrible big enough, but it should be easily big enough */
        char line[8096];
        int sock;
#endif

#ifdef ALLBSD
        if(getifaddrs(&net) != 0){
                return NULL;
        }

        if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;

        for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
                if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
                network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
                if(network_iface_stats==NULL){
                        return NULL;
                }
                network_iface_stat_ptr = network_iface_stats + ifaces;

                memset(&ifr, 0, sizeof(ifr));
                strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));

                if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
                        continue;
                }       
                if((ifr.ifr_flags & IFF_UP) != 0){
                        network_iface_stat_ptr->up = 1;
                }else{
                        network_iface_stat_ptr->up = 0;
                }

                if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
                network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
                if (network_iface_stat_ptr->interface_name == NULL) return NULL;

                network_iface_stat_ptr->speed = 0;
                network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
                ifaces++;

                memset(&ifmed, 0, sizeof(struct ifmediareq));
                strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
                if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
                        /* Not all interfaces support the media ioctls. */
                        continue;
                }

                /* We may need to change this if we start doing wireless devices too */
                if( (ifmed.ifm_active | IFM_ETHER) != ifmed.ifm_active ){
                        /* Not a ETHER device */
                        continue;
                }

                /* Only intrested in the first 4 bits)  - Assuming only ETHER devices */
                x = ifmed.ifm_active & 0x0f;    
                switch(x){
                        /* 10 Mbit connections. Speedy :) */
                        case(IFM_10_T):
                        case(IFM_10_2):
                        case(IFM_10_5):
                        case(IFM_10_STP):
                        case(IFM_10_FL):
                                network_iface_stat_ptr->speed = 10;
                                break;
                        /* 100 Mbit conneections */
                        case(IFM_100_TX):
                        case(IFM_100_FX):
                        case(IFM_100_T4):
                        case(IFM_100_VG):
                        case(IFM_100_T2):
                                network_iface_stat_ptr->speed = 100;
                                break;
                        /* 1000 Mbit connections */
                        case(IFM_1000_SX):
                        case(IFM_1000_LX):
                        case(IFM_1000_CX):
#ifdef IFM_1000_TX
                        case(IFM_1000_TX): /* FreeBSD 4 and others? */
#endif
#ifdef IFM_1000_FX
                        case(IFM_1000_FX): /* FreeBSD 4 */
#endif
#ifdef IFM_1000_T
                        case(IFM_1000_T): /* FreeBSD 5 */
#endif
                                network_iface_stat_ptr->speed = 1000;
                                break;
                        /* We don't know what it is */
                        default:
                                network_iface_stat_ptr->speed = 0;
                                break;
                }

                if( (ifmed.ifm_active | IFM_FDX) == ifmed.ifm_active ){
                        network_iface_stat_ptr->dup = FULL_DUPLEX;
                }else if( (ifmed.ifm_active | IFM_HDX) == ifmed.ifm_active ){
                        network_iface_stat_ptr->dup = HALF_DUPLEX;
                }else{
                        network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
                }

        }       
        freeifaddrs(net);
        close(sock);
#endif

#ifdef SOLARIS
        if ((kc = kstat_open()) == NULL) {
                return NULL;
        }

        if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
                return NULL;
        }

        for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
                if (!strcmp(ksp->ks_class, "net")) {
                        struct ifreq ifr;

                        kstat_read(kc, ksp, NULL);

                        strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
                        if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
                                /* Not a network interface. */
                                continue;
                        }

                        network_iface_stats = network_iface_stat_malloc(ifaces + 1, &sizeof_network_iface_stats, network_iface_stats);
                        if (network_iface_stats == NULL) {
                                return NULL;
                        }
                        network_iface_stat_ptr = network_iface_stats + ifaces;
                        ifaces++;

                        if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
                        network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
                        if (network_iface_stat_ptr->interface_name == NULL) return NULL;

                        if ((ifr.ifr_flags & IFF_UP) != 0) {
                                network_iface_stat_ptr->up = 1;
                        } else {
                                network_iface_stat_ptr->up = 1;
                        }

                        if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
                                network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
                        } else {
                                network_iface_stat_ptr->speed = 0;
                        }

                        network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
                        if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
                                switch (knp->value.ui32) {
                                case 1:
                                        network_iface_stat_ptr->dup = HALF_DUPLEX;
                                        break;
                                case 2:
                                        network_iface_stat_ptr->dup = FULL_DUPLEX;
                                        break;
                                }
                        }
                }
        }

        close(sock);
        kstat_close(kc);
#endif  
#ifdef LINUX
        f = fopen("/proc/net/dev", "r");
        if(f == NULL){
                return NULL;
        }

        /* Setup stuff so we can do the ioctl to get the info */
        if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
                return NULL;
        }

        /* Ignore first 2 lines.. Just headings */
        if((fgets(line, sizeof(line), f)) == NULL) return NULL;
        if((fgets(line, sizeof(line), f)) == NULL) return NULL;

        while((fgets(line, sizeof(line), f)) != NULL){
                char *name, *ptr;
                struct ifreq ifr;
                struct ethtool_cmd ethcmd;
                int err;

                /* Get the interface name */
                ptr = strchr(line, ':');
                if (ptr == NULL) continue;
                *ptr='\0';
                name = line;
                while(isspace(*(name))){
                        name++;
                }

                memset(&ifr, 0, sizeof ifr);
                strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);

                if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
                        continue;
                }

                /* We have a good interface to add */
                network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
                if(network_iface_stats==NULL){
                        return NULL;
                }
                network_iface_stat_ptr = network_iface_stats + ifaces;
                network_iface_stat_ptr->interface_name = strdup(name);
                if ((ifr.ifr_flags & IFF_UP) != 0) {
                        network_iface_stat_ptr->up = 1;
                } else {
                        network_iface_stat_ptr->up = 0;
                }

                memset(&ethcmd, 0, sizeof ethcmd);
                ethcmd.cmd = ETHTOOL_GSET;
                ifr.ifr_data = (caddr_t) &ethcmd;

                err = ioctl(sock, SIOCETHTOOL, &ifr);
                if (err == 0) {
                        network_iface_stat_ptr->speed = ethcmd.speed;

                        switch (ethcmd.duplex) {
                        case 0x00:
                                network_iface_stat_ptr->dup = FULL_DUPLEX;
                                break;
                        case 0x01:
                                network_iface_stat_ptr->dup = HALF_DUPLEX;
                                break;
                        default:
                                network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
                        }
                } else {
                        /* Not all interfaces support the ethtool ioctl. */
                        network_iface_stat_ptr->speed = 0;
                        network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
                }

                ifaces++;
        }
        close(sock);
        fclose(f);
#endif
        *entries = ifaces;
        return network_iface_stats; 
}

Revision:	1.47
Committed:	Sat Mar 6 21:49:13 2004 UTC (20 years, 2 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.46:	+16 -1 lines
Log Message:	Make the rest of the code aware of the new values in the struct.
#	User	Rev	Content
1	tdb	1.22	/*
2	pajs	1.1	* i-scream central monitoring system
3	tdb	1.15	* http://www.i-scream.org
4	tdb	1.22	* Copyright (C) 2000-2004 i-scream
5	pajs	1.1	*
6	tdb	1.22	* This library is free software; you can redistribute it and/or
7			* modify it under the terms of the GNU Lesser General Public
8			* License as published by the Free Software Foundation; either
9			* version 2.1 of the License, or (at your option) any later version.
10	pajs	1.1	*
11	tdb	1.22	* This library is distributed in the hope that it will be useful,
12	pajs	1.1	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	tdb	1.22	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14			* Lesser General Public License for more details.
15	pajs	1.1	*
16	tdb	1.22	* You should have received a copy of the GNU Lesser General Public
17			* License along with this library; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19			* 02111-1307 USA
20	tdb	1.23	*
21	tdb	1.47	* $Id: network_stats.c,v 1.46 2004/03/06 19:04:29 tdb Exp $
22	pajs	1.1	*/
23
24			#ifdef HAVE_CONFIG_H
25			#include "config.h"
26			#endif
27
28	tdb	1.4	#include <stdlib.h>
29	pajs	1.6	#include <string.h>
30	pajs	1.1	#include "statgrab.h"
31	tdb	1.11	#include <time.h>
32	pajs	1.1	#ifdef SOLARIS
33			#include <kstat.h>
34			#include <sys/sysinfo.h>
35	ats	1.44	#include <sys/types.h>
36			#include <sys/socket.h>
37			#include <sys/ioctl.h>
38			#include <net/if.h>
39			#include <netinet/in.h>
40			#include <sys/sockio.h>
41	pajs	1.6	#endif
42			#ifdef LINUX
43			#include <stdio.h>
44			#include <sys/types.h>
45			#include <regex.h>
46	pajs	1.27	#include <sys/ioctl.h>
47			#include <sys/socket.h>
48			#include <net/if.h>
49			#include <ctype.h>
50	pajs	1.6	#include "tools.h"
51	pajs	1.27	/* Stuff which could be defined by defining KERNEL, but
52			* that would be a bad idea, so we'll just declare it here
53			*/
54			typedef __uint8_t u8;
55			typedef __uint16_t u16;
56			typedef __uint32_t u32;
57	ats	1.42	typedef __uint64_t u64;
58	pajs	1.27	#include <linux/ethtool.h>
59			#include <linux/sockios.h>
60	ats	1.32	#include <unistd.h>
61	pajs	1.1	#endif
62	ats	1.18	#ifdef ALLBSD
63	pajs	1.14	#include <sys/types.h>
64			#include <sys/socket.h>
65			#include <ifaddrs.h>
66			#include <net/if.h>
67	pajs	1.26	#include <net/if_media.h>
68			#include <sys/ioctl.h>
69	pajs	1.14	#endif
70	pajs	1.1
71	pajs	1.3	static network_stat_t *network_stats=NULL;
72			static int interfaces=0;
73	pajs	1.1
74	pajs	1.3	void network_stat_init(int start, int end, network_stat_t *net_stats){
75
76			for(net_stats+=start; start<end; start++){
77			net_stats->interface_name=NULL;
78			net_stats->tx=0;
79			net_stats->rx=0;
80	tdb	1.47	net_stats->ipackets=0;
81			net_stats->opackets=0;
82			net_stats->ierrors=0;
83			net_stats->oerrors=0;
84			net_stats->collisions=0;
85	pajs	1.3	net_stats++;
86			}
87			}
88
89			network_stat_t network_stat_malloc(int needed_entries, int cur_entries, network_stat_t *net_stats){
90
91			if(net_stats==NULL){
92
93			if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){
94	pajs	1.1	return NULL;
95			}
96	pajs	1.3	network_stat_init(0, needed_entries, net_stats);
97			*cur_entries=needed_entries;
98
99	pajs	1.1	return net_stats;
100			}
101	pajs	1.3
102
103			if(*cur_entries<needed_entries){
104			net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries));
105			if(net_stats==NULL){
106	pajs	1.1	return NULL;
107			}
108	pajs	1.3	network_stat_init(*cur_entries, needed_entries, net_stats);
109			*cur_entries=needed_entries;
110	pajs	1.1	}
111
112			return net_stats;
113			}
114
115	pajs	1.3
116	pajs	1.1	network_stat_t get_network_stats(int entries){
117	pajs	1.6
118			static int sizeof_network_stats=0;
119			network_stat_t *network_stat_ptr;
120
121			#ifdef SOLARIS
122	pajs	1.1	kstat_ctl_t *kc;
123			kstat_t *ksp;
124			kstat_named_t *knp;
125	pajs	1.6	#endif
126	pajs	1.3
127	pajs	1.6	#ifdef LINUX
128			FILE *f;
129	pajs	1.12	/* Horrible big enough, but it should be easily big enough */
130	pajs	1.6	char line[8096];
131			regex_t regex;
132			regmatch_t line_match[4];
133	pajs	1.14	#endif
134	ats	1.18	#ifdef ALLBSD
135	pajs	1.14	struct ifaddrs net, net_ptr;
136			struct if_data *net_data;
137			#endif
138
139	ats	1.18	#ifdef ALLBSD
140	pajs	1.14	if(getifaddrs(&net) != 0){
141			return NULL;
142			}
143
144			interfaces=0;
145
146			for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
147			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
148			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
149			if(network_stats==NULL){
150			return NULL;
151			}
152			network_stat_ptr=network_stats+interfaces;
153
154			if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
155			network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
156			if(network_stat_ptr->interface_name==NULL) return NULL;
157			net_data=(struct if_data *)net_ptr->ifa_data;
158			network_stat_ptr->rx=net_data->ifi_ibytes;
159	tdb	1.46	network_stat_ptr->tx=net_data->ifi_obytes;
160			network_stat_ptr->ipackets=net_data->ifi_ipackets;
161			network_stat_ptr->opackets=net_data->ifi_opackets;
162			network_stat_ptr->ierrors=net_data->ifi_ierrors;
163			network_stat_ptr->oerrors=net_data->ifi_oerrors;
164			network_stat_ptr->collisions=net_data->ifi_collisions;
165	pajs	1.14	network_stat_ptr->systime=time(NULL);
166			interfaces++;
167			}
168			freeifaddrs(net);
169	pajs	1.6	#endif
170	pajs	1.1
171	pajs	1.6	#ifdef SOLARIS
172	pajs	1.1	if ((kc = kstat_open()) == NULL) {
173			return NULL;
174			}
175
176	pajs	1.6	interfaces=0;
177	pajs	1.3
178	pajs	1.1	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
179			if (!strcmp(ksp->ks_class, "net")) {
180			kstat_read(kc, ksp, NULL);
181
182	pajs	1.7	#ifdef SOL7
183			#define RLOOKUP "rbytes"
184			#define WLOOKUP "obytes"
185			#define VALTYPE value.ui32
186			#else
187			#define RLOOKUP "rbytes64"
188			#define WLOOKUP "obytes64"
189			#define VALTYPE value.ui64
190			#endif
191
192			if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){
193	ats	1.44	/* This is a network interface, but it doesn't
194			* have the rbytes/obytes values; for instance,
195			* the loopback devices have this behaviour
196			* (although they do track packets in/out). */
197	pajs	1.1	continue;
198			}
199	pajs	1.3
200			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
201	pajs	1.1	if(network_stats==NULL){
202			return NULL;
203			}
204			network_stat_ptr=network_stats+interfaces;
205	pajs	1.7	network_stat_ptr->rx=knp->VALTYPE;
206	pajs	1.1
207	pajs	1.7	if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){
208	pajs	1.1	continue;
209			}
210	pajs	1.7	network_stat_ptr->tx=knp->VALTYPE;
211	pajs	1.1	if(network_stat_ptr->interface_name!=NULL){
212			free(network_stat_ptr->interface_name);
213			}
214			network_stat_ptr->interface_name=strdup(ksp->ks_name);
215	pajs	1.3
216			network_stat_ptr->systime=time(NULL);
217	pajs	1.1	interfaces++;
218			}
219			}
220	pajs	1.2
221			kstat_close(kc);
222	pajs	1.6	#endif
223			#ifdef LINUX
224			f=fopen("/proc/net/dev", "r");
225			if(f==NULL){
226			return NULL;
227			}
228			/* read the 2 lines.. Its the title, so we dont care :) */
229			fgets(line, sizeof(line), f);
230			fgets(line, sizeof(line), f);
231
232
233			if((regcomp(&regex, "^[[:space:]]([^:]+):[[:space:]]([[:digit:]]+)[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+[[:space:]]+([[:digit:]]+)", REG_EXTENDED))!=0){
234			return NULL;
235			}
236
237			interfaces=0;
238	pajs	1.1
239	pajs	1.6	while((fgets(line, sizeof(line), f)) != NULL){
240			if((regexec(&regex, line, 4, line_match, 0))!=0){
241			continue;
242			}
243			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
244			if(network_stats==NULL){
245			return NULL;
246			}
247			network_stat_ptr=network_stats+interfaces;
248
249			if(network_stat_ptr->interface_name!=NULL){
250			free(network_stat_ptr->interface_name);
251			}
252
253			network_stat_ptr->interface_name=get_string_match(line, &line_match[1]);
254			network_stat_ptr->rx=get_ll_match(line, &line_match[2]);
255			network_stat_ptr->tx=get_ll_match(line, &line_match[3]);
256			network_stat_ptr->systime=time(NULL);
257
258			interfaces++;
259			}
260	pajs	1.12	fclose(f);
261	pajs	1.13	regfree(&regex);
262	pajs	1.6
263			#endif
264	ats	1.20
265			#ifdef CYGWIN
266			return NULL;
267			#endif
268
269	pajs	1.1	*entries=interfaces;
270
271			return network_stats;
272	pajs	1.3	}
273
274	pajs	1.8	long long transfer_diff(long long new, long long old){
275	tdb	1.45	#if defined(SOL7) \|\| defined(LINUX) \|\| defined(FREEBSD) \|\| defined(DFBSD)
276	ats	1.19	#define MAXVAL 4294967296LL
277	pajs	1.8	#else
278	ats	1.19	#define MAXVAL 18446744073709551616LL
279	pajs	1.8	#endif
280			long long result;
281	pajs	1.10	if(new>=old){
282	pajs	1.8	result = (new-old);
283			}else{
284			result = (MAXVAL+(new-old));
285			}
286
287			return result;
288
289			}
290
291	ats	1.24	network_stat_t get_network_stats_diff(int entries) {
292			static network_stat_t *diff = NULL;
293			static int diff_count = 0;
294			network_stat_t src, dest;
295			int i, j, new_count;
296
297			if (network_stats == NULL) {
298			/* No previous stats, so we can't calculate a difference. */
299			return get_network_stats(entries);
300	pajs	1.3	}
301
302	ats	1.24	/* Resize the results array to match the previous stats. */
303			diff = network_stat_malloc(interfaces, &diff_count, diff);
304			if (diff == NULL) {
305	pajs	1.3	return NULL;
306			}
307
308	ats	1.24	/* Copy the previous stats into the result. */
309			for (i = 0; i < diff_count; i++) {
310			src = &network_stats[i];
311			dest = &diff[i];
312	pajs	1.3
313	ats	1.24	if (dest->interface_name != NULL) {
314			free(dest->interface_name);
315	pajs	1.3	}
316	ats	1.24	dest->interface_name = strdup(src->interface_name);
317			dest->rx = src->rx;
318			dest->tx = src->tx;
319	tdb	1.47	dest->ipackets = src->ipackets;
320			dest->opackets = src->opackets;
321			dest->ierrors = src->ierrors;
322			dest->oerrors = src->oerrors;
323			dest->collisions = src->collisions;
324	ats	1.24	dest->systime = src->systime;
325			}
326	pajs	1.3
327	ats	1.24	/* Get a new set of stats. */
328			if (get_network_stats(&new_count) == NULL) {
329	ats	1.21	return NULL;
330			}
331	pajs	1.3
332	ats	1.24	/* For each previous stat... */
333			for (i = 0; i < diff_count; i++) {
334			dest = &diff[i];
335
336			/* ... find the corresponding new stat ... */
337			for (j = 0; j < new_count; j++) {
338			/* Try the new stat in the same position first,
339			since that's most likely to be it. */
340			src = &network_stats[(i + j) % new_count];
341			if (strcmp(src->interface_name, dest->interface_name) == 0) {
342			break;
343			}
344			}
345			if (j == new_count) {
346			/* No match found. */
347			continue;
348	pajs	1.3	}
349
350	ats	1.24	/* ... and subtract the previous stat from it to get the
351			difference. */
352			dest->rx = transfer_diff(src->rx, dest->rx);
353			dest->tx = transfer_diff(src->tx, dest->tx);
354	tdb	1.47	dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
355			dest->opackets = transfer_diff(src->opackets, dest->opackets);
356			dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
357			dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
358			dest->collisions = transfer_diff(src->collisions, dest->collisions);
359	ats	1.24	dest->systime = src->systime - dest->systime;
360	pajs	1.3	}
361
362	ats	1.24	*entries = diff_count;
363			return diff;
364			}
365	pajs	1.25	/* NETWORK INTERFACE STATS */
366
367			void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
368
369			for(net_stats+=start; start<end; start++){
370			net_stats->interface_name=NULL;
371			net_stats->speed=0;
372	ats	1.31	net_stats->dup=UNKNOWN_DUPLEX;
373	pajs	1.25	net_stats++;
374			}
375			}
376
377			network_iface_stat_t network_iface_stat_malloc(int needed_entries, int cur_entries, network_iface_stat_t *net_stats){
378
379			if(net_stats==NULL){
380
381			if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
382			return NULL;
383			}
384			network_iface_stat_init(0, needed_entries, net_stats);
385			*cur_entries=needed_entries;
386
387			return net_stats;
388			}
389
390
391			if(*cur_entries<needed_entries){
392			net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
393			if(net_stats==NULL){
394			return NULL;
395			}
396			network_iface_stat_init(*cur_entries, needed_entries, net_stats);
397			*cur_entries=needed_entries;
398			}
399
400			return net_stats;
401			}
402
403			network_iface_stat_t get_network_iface_stats(int entries){
404			static network_iface_stat_t *network_iface_stats;
405			network_iface_stat_t *network_iface_stat_ptr;
406			static int sizeof_network_iface_stats=0;
407	ats	1.43	int ifaces = 0;
408	pajs	1.25
409			#ifdef SOLARIS
410			kstat_ctl_t *kc;
411			kstat_t *ksp;
412			kstat_named_t *knp;
413	ats	1.44	int sock;
414	pajs	1.25	#endif
415	pajs	1.26	#ifdef ALLBSD
416			struct ifaddrs net, net_ptr;
417			struct ifmediareq ifmed;
418	pajs	1.36	struct ifreq ifr;
419	ats	1.37	int sock;
420	pajs	1.26	int x;
421			#endif
422	pajs	1.27	#ifdef LINUX
423			FILE *f;
424			/* Horrible big enough, but it should be easily big enough */
425			char line[8096];
426			int sock;
427			#endif
428	ats	1.43
429	pajs	1.26	#ifdef ALLBSD
430			if(getifaddrs(&net) != 0){
431			return NULL;
432			}
433
434	ats	1.37	if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
435	pajs	1.26
436			for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
437			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
438			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
439			if(network_iface_stats==NULL){
440			return NULL;
441			}
442			network_iface_stat_ptr = network_iface_stats + ifaces;
443
444	ats	1.40	memset(&ifr, 0, sizeof(ifr));
445			strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
446
447			if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
448			continue;
449			}
450			if((ifr.ifr_flags & IFF_UP) != 0){
451			network_iface_stat_ptr->up = 1;
452			}else{
453			network_iface_stat_ptr->up = 0;
454			}
455
456			if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
457			network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
458			if (network_iface_stat_ptr->interface_name == NULL) return NULL;
459
460			network_iface_stat_ptr->speed = 0;
461			network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
462			ifaces++;
463
464	pajs	1.26	memset(&ifmed, 0, sizeof(struct ifmediareq));
465			strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
466	ats	1.37	if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
467	ats	1.40	/* Not all interfaces support the media ioctls. */
468	pajs	1.26	continue;
469			}
470
471			/* We may need to change this if we start doing wireless devices too */
472			if( (ifmed.ifm_active \| IFM_ETHER) != ifmed.ifm_active ){
473			/* Not a ETHER device */
474			continue;
475			}
476
477			/* Only intrested in the first 4 bits) - Assuming only ETHER devices */
478			x = ifmed.ifm_active & 0x0f;
479			switch(x){
480			/* 10 Mbit connections. Speedy :) */
481			case(IFM_10_T):
482			case(IFM_10_2):
483			case(IFM_10_5):
484			case(IFM_10_STP):
485			case(IFM_10_FL):
486			network_iface_stat_ptr->speed = 10;
487			break;
488			/* 100 Mbit conneections */
489			case(IFM_100_TX):
490			case(IFM_100_FX):
491			case(IFM_100_T4):
492			case(IFM_100_VG):
493			case(IFM_100_T2):
494			network_iface_stat_ptr->speed = 100;
495			break;
496			/* 1000 Mbit connections */
497			case(IFM_1000_SX):
498			case(IFM_1000_LX):
499			case(IFM_1000_CX):
500	tdb	1.45	#ifdef IFM_1000_TX
501			case(IFM_1000_TX): /* FreeBSD 4 and others? */
502			#endif
503			#ifdef IFM_1000_FX
504			case(IFM_1000_FX): /* FreeBSD 4 */
505			#endif
506			#ifdef IFM_1000_T
507			case(IFM_1000_T): /* FreeBSD 5 */
508	tdb	1.28	#endif
509	pajs	1.26	network_iface_stat_ptr->speed = 1000;
510			break;
511			/* We don't know what it is */
512			default:
513			network_iface_stat_ptr->speed = 0;
514			break;
515			}
516
517			if( (ifmed.ifm_active \| IFM_FDX) == ifmed.ifm_active ){
518			network_iface_stat_ptr->dup = FULL_DUPLEX;
519			}else if( (ifmed.ifm_active \| IFM_HDX) == ifmed.ifm_active ){
520			network_iface_stat_ptr->dup = HALF_DUPLEX;
521			}else{
522	ats	1.31	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
523	pajs	1.26	}
524	pajs	1.36
525	pajs	1.26	}
526			freeifaddrs(net);
527	ats	1.37	close(sock);
528	pajs	1.26	#endif
529	pajs	1.25
530			#ifdef SOLARIS
531	ats	1.44	if ((kc = kstat_open()) == NULL) {
532			return NULL;
533			}
534
535			if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
536			return NULL;
537			}
538	pajs	1.25
539	ats	1.44	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
540			if (!strcmp(ksp->ks_class, "net")) {
541			struct ifreq ifr;
542
543			kstat_read(kc, ksp, NULL);
544
545			strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
546			if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
547			/* Not a network interface. */
548	pajs	1.25	continue;
549			}
550	ats	1.44
551			network_iface_stats = network_iface_stat_malloc(ifaces + 1, &sizeof_network_iface_stats, network_iface_stats);
552			if (network_iface_stats == NULL) {
553	pajs	1.25	return NULL;
554			}
555	pajs	1.26	network_iface_stat_ptr = network_iface_stats + ifaces;
556	ats	1.44	ifaces++;
557
558			if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
559			network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
560			if (network_iface_stat_ptr->interface_name == NULL) return NULL;
561	pajs	1.25
562	ats	1.44	if ((ifr.ifr_flags & IFF_UP) != 0) {
563			network_iface_stat_ptr->up = 1;
564			} else {
565			network_iface_stat_ptr->up = 1;
566			}
567	pajs	1.35
568	ats	1.44	if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
569			network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
570			} else {
571			network_iface_stat_ptr->speed = 0;
572	pajs	1.25	}
573
574	pajs	1.33	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
575	ats	1.44	if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
576			switch (knp->value.ui32) {
577			case 1:
578			network_iface_stat_ptr->dup = HALF_DUPLEX;
579			break;
580			case 2:
581			network_iface_stat_ptr->dup = FULL_DUPLEX;
582			break;
583			}
584	pajs	1.33	}
585	pajs	1.25	}
586			}
587	ats	1.44
588			close(sock);
589	pajs	1.25	kstat_close(kc);
590			#endif
591	pajs	1.27	#ifdef LINUX
592			f = fopen("/proc/net/dev", "r");
593			if(f == NULL){
594			return NULL;
595			}
596
597			/* Setup stuff so we can do the ioctl to get the info */
598			if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
599			return NULL;
600			}
601
602			/* Ignore first 2 lines.. Just headings */
603	pajs	1.29	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
604			if((fgets(line, sizeof(line), f)) == NULL) return NULL;
605	pajs	1.27
606			while((fgets(line, sizeof(line), f)) != NULL){
607			char name, ptr;
608			struct ifreq ifr;
609	ats	1.38	struct ethtool_cmd ethcmd;
610	pajs	1.27	int err;
611
612			/* Get the interface name */
613			ptr = strchr(line, ':');
614			if (ptr == NULL) continue;
615			*ptr='\0';
616			name = line;
617			while(isspace(*(name))){
618			name++;
619			}
620
621	ats	1.38	memset(&ifr, 0, sizeof ifr);
622			strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
623	pajs	1.27
624	ats	1.38	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
625			continue;
626			}
627	pajs	1.27
628			/* We have a good interface to add */
629			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
630			if(network_iface_stats==NULL){
631			return NULL;
632			}
633			network_iface_stat_ptr = network_iface_stats + ifaces;
634			network_iface_stat_ptr->interface_name = strdup(name);
635	ats	1.38	if ((ifr.ifr_flags & IFF_UP) != 0) {
636	pajs	1.35	network_iface_stat_ptr->up = 1;
637	ats	1.38	} else {
638	pajs	1.35	network_iface_stat_ptr->up = 0;
639			}
640
641	ats	1.38	memset(&ethcmd, 0, sizeof ethcmd);
642			ethcmd.cmd = ETHTOOL_GSET;
643			ifr.ifr_data = (caddr_t) &ethcmd;
644
645			err = ioctl(sock, SIOCETHTOOL, &ifr);
646			if (err == 0) {
647			network_iface_stat_ptr->speed = ethcmd.speed;
648
649			switch (ethcmd.duplex) {
650			case 0x00:
651			network_iface_stat_ptr->dup = FULL_DUPLEX;
652			break;
653			case 0x01:
654			network_iface_stat_ptr->dup = HALF_DUPLEX;
655			break;
656			default:
657			network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
658			}
659			} else {
660			/* Not all interfaces support the ethtool ioctl. */
661	ats	1.39	network_iface_stat_ptr->speed = 0;
662	ats	1.38	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
663	pajs	1.27	}
664	ats	1.38
665	pajs	1.27	ifaces++;
666			}
667	pajs	1.30	close(sock);
668	ats	1.38	fclose(f);
669	pajs	1.27	#endif
670	pajs	1.26	*entries = ifaces;
671	pajs	1.25	return network_iface_stats;
672			}
673