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 1.59 2004/04/04 22:52:16 ats Exp $
 */

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

#include <stdlib.h>
#include <string.h>
#include "statgrab.h"
#include "vector.h"
#include "tools.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>
/* 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>
#include <unistd.h>
#endif

static void network_stat_init(network_stat_t *s) {
        s->interface_name = NULL;
        s->tx = 0;
        s->rx = 0;
        s->ipackets = 0;
        s->opackets = 0;
        s->ierrors = 0;
        s->oerrors = 0;
        s->collisions = 0;
}

static void network_stat_destroy(network_stat_t *s) {
        free(s->interface_name);
}

VECTOR_DECLARE_STATIC(network_stats, network_stat_t, 5,
                      network_stat_init, network_stat_destroy);

network_stat_t *get_network_stats(int *entries){
        int interfaces;
        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[9];
#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;

                if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
                        return NULL;
                }
                network_stat_ptr=network_stats+interfaces;
                
                if (update_string(&network_stat_ptr->interface_name,
                                  net_ptr->ifa_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 LRX "rbytes"
#define LTX "obytes"
#define LIPACKETS "ipackets"
#define LOPACKETS "opackets"
#define VALTYPE value.ui32
#else
#define LRX "rbytes64"
#define LTX "obytes64"
#define LIPACKETS "ipackets64"
#define LOPACKETS "opackets64"
#define VALTYPE value.ui64
#endif

                        /* Read rx */
                        if((knp=kstat_data_lookup(ksp, LRX))==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). */
                                /* FIXME: Show packet counts when byte counts
                                 * not available. */
                                continue;
                        }

                        /* Create new network_stats */
                        if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
                                return NULL;
                        }
                        network_stat_ptr=network_stats+interfaces;

                        /* Finish reading rx */
                        network_stat_ptr->rx=knp->VALTYPE;

                        /* Read tx */
                        if((knp=kstat_data_lookup(ksp, LTX))==NULL){
                                continue;
                        }
                        network_stat_ptr->tx=knp->VALTYPE;

                        /* Read ipackets */
                        if((knp=kstat_data_lookup(ksp, LIPACKETS))==NULL){
                                continue;
                        }
                        network_stat_ptr->ipackets=knp->VALTYPE;

                        /* Read opackets */
                        if((knp=kstat_data_lookup(ksp, LOPACKETS))==NULL){
                                continue;
                        }
                        network_stat_ptr->opackets=knp->VALTYPE;

                        /* Read ierrors */
                        if((knp=kstat_data_lookup(ksp, "ierrors"))==NULL){
                                continue;
                        }
                        network_stat_ptr->ierrors=knp->value.ui32;

                        /* Read oerrors */
                        if((knp=kstat_data_lookup(ksp, "oerrors"))==NULL){
                                continue;
                        }
                        network_stat_ptr->oerrors=knp->value.ui32;

                        /* Read collisions */
                        if((knp=kstat_data_lookup(ksp, "collisions"))==NULL){
                                continue;
                        }
                        network_stat_ptr->collisions=knp->value.ui32;

                        /* Read interface name */
                        if (update_string(&network_stat_ptr->interface_name,
                                          ksp->ks_name) == NULL) {
                                return NULL;
                        }

                        /* Store systime */
                        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, "^ *([^:]+): *([0-9]+) +([0-9]+) +([0-9]+) +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +([0-9]+) +([0-9]+) +([0-9]+) +[0-9]+ +[0-9]+ +([0-9]+)", REG_EXTENDED))!=0){
                return NULL;
        }

        interfaces=0;

        while((fgets(line, sizeof(line), f)) != NULL){
                if((regexec(&regex, line, 9, line_match, 0))!=0){
                        continue;
                }

                if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
                        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[5]);
                network_stat_ptr->ipackets=get_ll_match(line, &line_match[3]);
                network_stat_ptr->opackets=get_ll_match(line, &line_match[6]);
                network_stat_ptr->ierrors=get_ll_match(line, &line_match[4]);
                network_stat_ptr->oerrors=get_ll_match(line, &line_match[7]);
                network_stat_ptr->collisions=get_ll_match(line, &line_match[8]);
                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) || defined(OPENBSD)
        /* 32-bit quantities, so we must explicitly deal with wraparound. */
#define MAXVAL 0x100000000LL
        if (new >= old) {
                return new - old;
        } else {
                return MAXVAL + new - old;
        }
#else
        /* 64-bit quantities, so plain subtraction works. */
        return new - old;
#endif
}

network_stat_t *get_network_stats_diff(int *entries) {
        VECTOR_DECLARE_STATIC(diff, network_stat_t, 1,
                              network_stat_init, network_stat_destroy);
        network_stat_t *src = NULL, *dest;
        int i, j, diff_count, 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_count = VECTOR_SIZE(network_stats);
        if (VECTOR_RESIZE(diff, diff_count) < 0) {
                return NULL;
        }

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

                if (update_string(&dest->interface_name,
                                  src->interface_name) == NULL) {
                        return NULL;
                }
                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 */

static void network_iface_stat_init(network_iface_stat_t *s) {
        s->interface_name = NULL;
        s->speed = 0;
        s->dup = UNKNOWN_DUPLEX;
}

static void network_iface_stat_destroy(network_iface_stat_t *s) {
        free(s->interface_name);
}

network_iface_stat_t *get_network_iface_stats(int *entries){
        VECTOR_DECLARE_STATIC(network_iface_stats, network_iface_stat_t, 5,
                              network_iface_stat_init, network_iface_stat_destroy);
        network_iface_stat_t *network_iface_stat_ptr;
        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;

                if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
                        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 (update_string(&network_iface_stat_ptr->interface_name,
                                  net_ptr->ifa_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):
#if defined(IFM_1000_TX) && !defined(OPENBSD)
                        case(IFM_1000_TX): /* FreeBSD 4 and others (but NOT OpenBSD)? */
#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;
                        }

                        if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
                                return NULL;
                        }
                        network_iface_stat_ptr = network_iface_stats + ifaces;
                        ifaces++;

                        if (update_string(&network_iface_stat_ptr->interface_name,
                                          ksp->ks_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 */
                if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
                        return NULL;
                }
                network_iface_stat_ptr = network_iface_stats + ifaces;
                
                if (update_string(&network_iface_stat_ptr->interface_name,
                                  name) == NULL) {
                        return NULL;
                }
                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:	1.60
Committed:	Mon Apr 5 00:16:24 2004 UTC (20 years, 1 month ago) by ats
Content type:	text/plain
Branch:	MAIN
Changes since 1.59:	+25 -18 lines
Log Message:	Use update_string.
#	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	ats	1.60	* $Id: network_stats.c,v 1.59 2004/04/04 22:52:16 ats 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	ats	1.59	#include "vector.h"
32	ats	1.60	#include "tools.h"
33	tdb	1.11	#include <time.h>
34	pajs	1.1	#ifdef SOLARIS
35			#include <kstat.h>
36			#include <sys/sysinfo.h>
37	ats	1.44	#include <sys/types.h>
38			#include <sys/socket.h>
39			#include <sys/ioctl.h>
40			#include <net/if.h>
41			#include <netinet/in.h>
42			#include <sys/sockio.h>
43	pajs	1.6	#endif
44			#ifdef LINUX
45			#include <stdio.h>
46			#include <sys/types.h>
47			#include <regex.h>
48	pajs	1.27	#include <sys/ioctl.h>
49			#include <sys/socket.h>
50			#include <net/if.h>
51			#include <ctype.h>
52			/* Stuff which could be defined by defining KERNEL, but
53			* that would be a bad idea, so we'll just declare it here
54			*/
55			typedef __uint8_t u8;
56			typedef __uint16_t u16;
57			typedef __uint32_t u32;
58	ats	1.42	typedef __uint64_t u64;
59	pajs	1.27	#include <linux/ethtool.h>
60			#include <linux/sockios.h>
61	ats	1.32	#include <unistd.h>
62	pajs	1.1	#endif
63	ats	1.18	#ifdef ALLBSD
64	pajs	1.14	#include <sys/types.h>
65			#include <sys/socket.h>
66			#include <ifaddrs.h>
67			#include <net/if.h>
68	pajs	1.26	#include <net/if_media.h>
69			#include <sys/ioctl.h>
70	tdb	1.58	#include <unistd.h>
71	pajs	1.14	#endif
72	pajs	1.1
73	ats	1.59	static void network_stat_init(network_stat_t *s) {
74			s->interface_name = NULL;
75			s->tx = 0;
76			s->rx = 0;
77			s->ipackets = 0;
78			s->opackets = 0;
79			s->ierrors = 0;
80			s->oerrors = 0;
81			s->collisions = 0;
82	pajs	1.3	}
83
84	ats	1.59	static void network_stat_destroy(network_stat_t *s) {
85			free(s->interface_name);
86	pajs	1.1	}
87
88	ats	1.59	VECTOR_DECLARE_STATIC(network_stats, network_stat_t, 5,
89			network_stat_init, network_stat_destroy);
90	pajs	1.3
91	pajs	1.1	network_stat_t get_network_stats(int entries){
92	ats	1.59	int interfaces;
93	pajs	1.6	network_stat_t *network_stat_ptr;
94
95			#ifdef SOLARIS
96	pajs	1.1	kstat_ctl_t *kc;
97			kstat_t *ksp;
98			kstat_named_t *knp;
99	pajs	1.6	#endif
100	pajs	1.3
101	pajs	1.6	#ifdef LINUX
102			FILE *f;
103	pajs	1.12	/* Horrible big enough, but it should be easily big enough */
104	pajs	1.6	char line[8096];
105			regex_t regex;
106	ats	1.49	regmatch_t line_match[9];
107	pajs	1.14	#endif
108	ats	1.18	#ifdef ALLBSD
109	pajs	1.14	struct ifaddrs net, net_ptr;
110			struct if_data *net_data;
111			#endif
112
113	ats	1.18	#ifdef ALLBSD
114	pajs	1.14	if(getifaddrs(&net) != 0){
115			return NULL;
116			}
117
118			interfaces=0;
119
120			for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
121			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
122	ats	1.59
123			if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
124	pajs	1.14	return NULL;
125			}
126			network_stat_ptr=network_stats+interfaces;
127
128	ats	1.60	if (update_string(&network_stat_ptr->interface_name,
129			net_ptr->ifa_name) == NULL) {
130			return NULL;
131			}
132	pajs	1.14	net_data=(struct if_data *)net_ptr->ifa_data;
133			network_stat_ptr->rx=net_data->ifi_ibytes;
134	tdb	1.46	network_stat_ptr->tx=net_data->ifi_obytes;
135			network_stat_ptr->ipackets=net_data->ifi_ipackets;
136			network_stat_ptr->opackets=net_data->ifi_opackets;
137			network_stat_ptr->ierrors=net_data->ifi_ierrors;
138			network_stat_ptr->oerrors=net_data->ifi_oerrors;
139			network_stat_ptr->collisions=net_data->ifi_collisions;
140	pajs	1.14	network_stat_ptr->systime=time(NULL);
141			interfaces++;
142			}
143			freeifaddrs(net);
144	pajs	1.6	#endif
145	pajs	1.1
146	pajs	1.6	#ifdef SOLARIS
147	pajs	1.1	if ((kc = kstat_open()) == NULL) {
148			return NULL;
149			}
150
151	pajs	1.6	interfaces=0;
152	pajs	1.3
153	pajs	1.1	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
154			if (!strcmp(ksp->ks_class, "net")) {
155			kstat_read(kc, ksp, NULL);
156
157	pajs	1.7	#ifdef SOL7
158	tdb	1.53	#define LRX "rbytes"
159			#define LTX "obytes"
160			#define LIPACKETS "ipackets"
161			#define LOPACKETS "opackets"
162	pajs	1.7	#define VALTYPE value.ui32
163			#else
164	tdb	1.53	#define LRX "rbytes64"
165			#define LTX "obytes64"
166			#define LIPACKETS "ipackets64"
167			#define LOPACKETS "opackets64"
168	pajs	1.7	#define VALTYPE value.ui64
169			#endif
170
171	tdb	1.53	/* Read rx */
172			if((knp=kstat_data_lookup(ksp, LRX))==NULL){
173	ats	1.44	/* This is a network interface, but it doesn't
174			* have the rbytes/obytes values; for instance,
175			* the loopback devices have this behaviour
176			* (although they do track packets in/out). */
177	ats	1.55	/* FIXME: Show packet counts when byte counts
178			* not available. */
179	pajs	1.1	continue;
180			}
181	pajs	1.3
182	tdb	1.53	/* Create new network_stats */
183	ats	1.59	if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
184	pajs	1.1	return NULL;
185			}
186			network_stat_ptr=network_stats+interfaces;
187	tdb	1.53
188			/* Finish reading rx */
189	pajs	1.7	network_stat_ptr->rx=knp->VALTYPE;
190	pajs	1.1
191	tdb	1.53	/* Read tx */
192			if((knp=kstat_data_lookup(ksp, LTX))==NULL){
193	pajs	1.1	continue;
194			}
195	pajs	1.7	network_stat_ptr->tx=knp->VALTYPE;
196	tdb	1.53
197			/* Read ipackets */
198			if((knp=kstat_data_lookup(ksp, LIPACKETS))==NULL){
199			continue;
200			}
201			network_stat_ptr->ipackets=knp->VALTYPE;
202
203			/* Read opackets */
204			if((knp=kstat_data_lookup(ksp, LOPACKETS))==NULL){
205			continue;
206			}
207			network_stat_ptr->opackets=knp->VALTYPE;
208
209			/* Read ierrors */
210			if((knp=kstat_data_lookup(ksp, "ierrors"))==NULL){
211			continue;
212			}
213			network_stat_ptr->ierrors=knp->value.ui32;
214
215			/* Read oerrors */
216			if((knp=kstat_data_lookup(ksp, "oerrors"))==NULL){
217			continue;
218			}
219			network_stat_ptr->oerrors=knp->value.ui32;
220
221			/* Read collisions */
222			if((knp=kstat_data_lookup(ksp, "collisions"))==NULL){
223			continue;
224			}
225			network_stat_ptr->collisions=knp->value.ui32;
226
227			/* Read interface name */
228	ats	1.60	if (update_string(&network_stat_ptr->interface_name,
229			ksp->ks_name) == NULL) {
230			return NULL;
231	pajs	1.1	}
232	pajs	1.3
233	tdb	1.53	/* Store systime */
234	pajs	1.3	network_stat_ptr->systime=time(NULL);
235	tdb	1.53
236	pajs	1.1	interfaces++;
237			}
238			}
239	pajs	1.2
240			kstat_close(kc);
241	pajs	1.6	#endif
242			#ifdef LINUX
243			f=fopen("/proc/net/dev", "r");
244			if(f==NULL){
245			return NULL;
246			}
247			/* read the 2 lines.. Its the title, so we dont care :) */
248			fgets(line, sizeof(line), f);
249			fgets(line, sizeof(line), f);
250
251
252	ats	1.50	if((regcomp(&regex, "^ ([^:]+): ([0-9]+) +([0-9]+) +([0-9]+) +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +[0-9]+ +([0-9]+) +([0-9]+) +([0-9]+) +[0-9]+ +[0-9]+ +([0-9]+)", REG_EXTENDED))!=0){
253	pajs	1.6	return NULL;
254			}
255
256			interfaces=0;
257	pajs	1.1
258	pajs	1.6	while((fgets(line, sizeof(line), f)) != NULL){
259	ats	1.51	if((regexec(&regex, line, 9, line_match, 0))!=0){
260	pajs	1.6	continue;
261			}
262	ats	1.59
263			if (VECTOR_RESIZE(network_stats, interfaces + 1) < 0) {
264			return NULL;
265	pajs	1.6	}
266			network_stat_ptr=network_stats+interfaces;
267
268			if(network_stat_ptr->interface_name!=NULL){
269			free(network_stat_ptr->interface_name);
270			}
271
272			network_stat_ptr->interface_name=get_string_match(line, &line_match[1]);
273			network_stat_ptr->rx=get_ll_match(line, &line_match[2]);
274	tdb	1.48	network_stat_ptr->tx=get_ll_match(line, &line_match[5]);
275			network_stat_ptr->ipackets=get_ll_match(line, &line_match[3]);
276			network_stat_ptr->opackets=get_ll_match(line, &line_match[6]);
277			network_stat_ptr->ierrors=get_ll_match(line, &line_match[4]);
278			network_stat_ptr->oerrors=get_ll_match(line, &line_match[7]);
279			network_stat_ptr->collisions=get_ll_match(line, &line_match[8]);
280	pajs	1.6	network_stat_ptr->systime=time(NULL);
281
282			interfaces++;
283			}
284	pajs	1.12	fclose(f);
285	pajs	1.13	regfree(&regex);
286	pajs	1.6
287			#endif
288	ats	1.20
289			#ifdef CYGWIN
290			return NULL;
291			#endif
292
293	pajs	1.1	*entries=interfaces;
294
295			return network_stats;
296	pajs	1.3	}
297
298	pajs	1.8	long long transfer_diff(long long new, long long old){
299	ats	1.56	#if defined(SOL7) \|\| defined(LINUX) \|\| defined(FREEBSD) \|\| defined(DFBSD) \|\| defined(OPENBSD)
300			/* 32-bit quantities, so we must explicitly deal with wraparound. */
301			#define MAXVAL 0x100000000LL
302			if (new >= old) {
303			return new - old;
304			} else {
305			return MAXVAL + new - old;
306			}
307	pajs	1.8	#else
308	ats	1.56	/* 64-bit quantities, so plain subtraction works. */
309			return new - old;
310	pajs	1.8	#endif
311			}
312
313	ats	1.24	network_stat_t get_network_stats_diff(int entries) {
314	ats	1.59	VECTOR_DECLARE_STATIC(diff, network_stat_t, 1,
315			network_stat_init, network_stat_destroy);
316	ats	1.57	network_stat_t src = NULL, dest;
317	ats	1.59	int i, j, diff_count, new_count;
318	ats	1.24
319			if (network_stats == NULL) {
320			/* No previous stats, so we can't calculate a difference. */
321			return get_network_stats(entries);
322	pajs	1.3	}
323
324	ats	1.24	/* Resize the results array to match the previous stats. */
325	ats	1.59	diff_count = VECTOR_SIZE(network_stats);
326			if (VECTOR_RESIZE(diff, diff_count) < 0) {
327	pajs	1.3	return NULL;
328			}
329
330	ats	1.24	/* Copy the previous stats into the result. */
331			for (i = 0; i < diff_count; i++) {
332			src = &network_stats[i];
333			dest = &diff[i];
334	pajs	1.3
335	ats	1.60	if (update_string(&dest->interface_name,
336			src->interface_name) == NULL) {
337			return NULL;
338	pajs	1.3	}
339	ats	1.24	dest->rx = src->rx;
340			dest->tx = src->tx;
341	tdb	1.47	dest->ipackets = src->ipackets;
342			dest->opackets = src->opackets;
343			dest->ierrors = src->ierrors;
344			dest->oerrors = src->oerrors;
345			dest->collisions = src->collisions;
346	ats	1.24	dest->systime = src->systime;
347			}
348	pajs	1.3
349	ats	1.24	/* Get a new set of stats. */
350			if (get_network_stats(&new_count) == NULL) {
351	ats	1.21	return NULL;
352			}
353	pajs	1.3
354	ats	1.24	/* For each previous stat... */
355			for (i = 0; i < diff_count; i++) {
356			dest = &diff[i];
357
358			/* ... find the corresponding new stat ... */
359			for (j = 0; j < new_count; j++) {
360			/* Try the new stat in the same position first,
361			since that's most likely to be it. */
362			src = &network_stats[(i + j) % new_count];
363			if (strcmp(src->interface_name, dest->interface_name) == 0) {
364			break;
365			}
366			}
367			if (j == new_count) {
368			/* No match found. */
369			continue;
370	pajs	1.3	}
371
372	ats	1.24	/* ... and subtract the previous stat from it to get the
373			difference. */
374			dest->rx = transfer_diff(src->rx, dest->rx);
375			dest->tx = transfer_diff(src->tx, dest->tx);
376	tdb	1.47	dest->ipackets = transfer_diff(src->ipackets, dest->ipackets);
377			dest->opackets = transfer_diff(src->opackets, dest->opackets);
378			dest->ierrors = transfer_diff(src->ierrors, dest->ierrors);
379			dest->oerrors = transfer_diff(src->oerrors, dest->oerrors);
380			dest->collisions = transfer_diff(src->collisions, dest->collisions);
381	ats	1.24	dest->systime = src->systime - dest->systime;
382	pajs	1.3	}
383
384	ats	1.24	*entries = diff_count;
385			return diff;
386			}
387	ats	1.59
388	pajs	1.25	/* NETWORK INTERFACE STATS */
389
390	ats	1.59	static void network_iface_stat_init(network_iface_stat_t *s) {
391			s->interface_name = NULL;
392			s->speed = 0;
393			s->dup = UNKNOWN_DUPLEX;
394	pajs	1.25	}
395
396	ats	1.59	static void network_iface_stat_destroy(network_iface_stat_t *s) {
397			free(s->interface_name);
398	pajs	1.25	}
399
400			network_iface_stat_t get_network_iface_stats(int entries){
401	ats	1.59	VECTOR_DECLARE_STATIC(network_iface_stats, network_iface_stat_t, 5,
402			network_iface_stat_init, network_iface_stat_destroy);
403	pajs	1.25	network_iface_stat_t *network_iface_stat_ptr;
404	ats	1.43	int ifaces = 0;
405	pajs	1.25
406			#ifdef SOLARIS
407			kstat_ctl_t *kc;
408			kstat_t *ksp;
409			kstat_named_t *knp;
410	ats	1.44	int sock;
411	pajs	1.25	#endif
412	pajs	1.26	#ifdef ALLBSD
413			struct ifaddrs net, net_ptr;
414			struct ifmediareq ifmed;
415	pajs	1.36	struct ifreq ifr;
416	ats	1.37	int sock;
417	pajs	1.26	int x;
418			#endif
419	pajs	1.27	#ifdef LINUX
420			FILE *f;
421			/* Horrible big enough, but it should be easily big enough */
422			char line[8096];
423			int sock;
424			#endif
425	ats	1.43
426	pajs	1.26	#ifdef ALLBSD
427			if(getifaddrs(&net) != 0){
428			return NULL;
429			}
430
431	ats	1.37	if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
432	pajs	1.26
433			for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
434			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
435	ats	1.59
436			if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
437	pajs	1.26	return NULL;
438			}
439			network_iface_stat_ptr = network_iface_stats + ifaces;
440
441	ats	1.40	memset(&ifr, 0, sizeof(ifr));
442			strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
443
444			if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
445			continue;
446			}
447			if((ifr.ifr_flags & IFF_UP) != 0){
448			network_iface_stat_ptr->up = 1;
449			}else{
450			network_iface_stat_ptr->up = 0;
451			}
452
453	ats	1.60	if (update_string(&network_iface_stat_ptr->interface_name,
454			net_ptr->ifa_name) == NULL) {
455			return NULL;
456			}
457	ats	1.40
458			network_iface_stat_ptr->speed = 0;
459			network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
460			ifaces++;
461
462	pajs	1.26	memset(&ifmed, 0, sizeof(struct ifmediareq));
463			strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
464	ats	1.37	if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
465	ats	1.40	/* Not all interfaces support the media ioctls. */
466	pajs	1.26	continue;
467			}
468
469			/* We may need to change this if we start doing wireless devices too */
470			if( (ifmed.ifm_active \| IFM_ETHER) != ifmed.ifm_active ){
471			/* Not a ETHER device */
472			continue;
473			}
474
475			/* Only intrested in the first 4 bits) - Assuming only ETHER devices */
476			x = ifmed.ifm_active & 0x0f;
477			switch(x){
478			/* 10 Mbit connections. Speedy :) */
479			case(IFM_10_T):
480			case(IFM_10_2):
481			case(IFM_10_5):
482			case(IFM_10_STP):
483			case(IFM_10_FL):
484			network_iface_stat_ptr->speed = 10;
485			break;
486			/* 100 Mbit conneections */
487			case(IFM_100_TX):
488			case(IFM_100_FX):
489			case(IFM_100_T4):
490			case(IFM_100_VG):
491			case(IFM_100_T2):
492			network_iface_stat_ptr->speed = 100;
493			break;
494			/* 1000 Mbit connections */
495			case(IFM_1000_SX):
496			case(IFM_1000_LX):
497			case(IFM_1000_CX):
498	tdb	1.54	#if defined(IFM_1000_TX) && !defined(OPENBSD)
499			case(IFM_1000_TX): /* FreeBSD 4 and others (but NOT OpenBSD)? */
500	tdb	1.45	#endif
501			#ifdef IFM_1000_FX
502			case(IFM_1000_FX): /* FreeBSD 4 */
503			#endif
504			#ifdef IFM_1000_T
505			case(IFM_1000_T): /* FreeBSD 5 */
506	tdb	1.28	#endif
507	pajs	1.26	network_iface_stat_ptr->speed = 1000;
508			break;
509			/* We don't know what it is */
510			default:
511			network_iface_stat_ptr->speed = 0;
512			break;
513			}
514
515			if( (ifmed.ifm_active \| IFM_FDX) == ifmed.ifm_active ){
516			network_iface_stat_ptr->dup = FULL_DUPLEX;
517			}else if( (ifmed.ifm_active \| IFM_HDX) == ifmed.ifm_active ){
518			network_iface_stat_ptr->dup = HALF_DUPLEX;
519			}else{
520	ats	1.31	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
521	pajs	1.26	}
522	pajs	1.36
523	pajs	1.26	}
524			freeifaddrs(net);
525	ats	1.37	close(sock);
526	pajs	1.26	#endif
527	pajs	1.25
528			#ifdef SOLARIS
529	ats	1.44	if ((kc = kstat_open()) == NULL) {
530			return NULL;
531			}
532
533			if ((sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_IP)) < 0) {
534			return NULL;
535			}
536	pajs	1.25
537	ats	1.44	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
538			if (!strcmp(ksp->ks_class, "net")) {
539			struct ifreq ifr;
540
541			kstat_read(kc, ksp, NULL);
542
543			strncpy(ifr.ifr_name, ksp->ks_name, sizeof ifr.ifr_name);
544			if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
545			/* Not a network interface. */
546	pajs	1.25	continue;
547			}
548	ats	1.44
549	ats	1.59	if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
550	pajs	1.25	return NULL;
551			}
552	pajs	1.26	network_iface_stat_ptr = network_iface_stats + ifaces;
553	ats	1.44	ifaces++;
554
555	ats	1.60	if (update_string(&network_iface_stat_ptr->interface_name,
556			ksp->ks_name) == NULL) {
557			return NULL;
558			}
559	pajs	1.25
560	ats	1.44	if ((ifr.ifr_flags & IFF_UP) != 0) {
561			network_iface_stat_ptr->up = 1;
562			} else {
563			network_iface_stat_ptr->up = 1;
564			}
565	pajs	1.35
566	ats	1.44	if ((knp = kstat_data_lookup(ksp, "ifspeed")) != NULL) {
567			network_iface_stat_ptr->speed = knp->value.ui64 / (1000 * 1000);
568			} else {
569			network_iface_stat_ptr->speed = 0;
570	pajs	1.25	}
571
572	pajs	1.33	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
573	ats	1.44	if ((knp = kstat_data_lookup(ksp, "link_duplex")) != NULL) {
574			switch (knp->value.ui32) {
575			case 1:
576			network_iface_stat_ptr->dup = HALF_DUPLEX;
577			break;
578			case 2:
579			network_iface_stat_ptr->dup = FULL_DUPLEX;
580			break;
581			}
582	pajs	1.33	}
583	pajs	1.25	}
584			}
585	ats	1.44
586			close(sock);
587	pajs	1.25	kstat_close(kc);
588			#endif
589	pajs	1.27	#ifdef LINUX
590			f = fopen("/proc/net/dev", "r");
591			if(f == NULL){
592			return NULL;
593			}
594
595			/* Setup stuff so we can do the ioctl to get the info */
596			if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
597			return NULL;
598			}
599
600			/* Ignore first 2 lines.. Just headings */
601	pajs	1.29	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
602			if((fgets(line, sizeof(line), f)) == NULL) return NULL;
603	pajs	1.27
604			while((fgets(line, sizeof(line), f)) != NULL){
605			char name, ptr;
606			struct ifreq ifr;
607	ats	1.38	struct ethtool_cmd ethcmd;
608	pajs	1.27	int err;
609
610			/* Get the interface name */
611			ptr = strchr(line, ':');
612			if (ptr == NULL) continue;
613			*ptr='\0';
614			name = line;
615			while(isspace(*(name))){
616			name++;
617			}
618
619	ats	1.38	memset(&ifr, 0, sizeof ifr);
620			strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
621	pajs	1.27
622	ats	1.38	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
623			continue;
624			}
625	pajs	1.27
626			/* We have a good interface to add */
627	ats	1.59	if (VECTOR_RESIZE(network_iface_stats, ifaces + 1) < 0) {
628	pajs	1.27	return NULL;
629			}
630			network_iface_stat_ptr = network_iface_stats + ifaces;
631	ats	1.60
632			if (update_string(&network_iface_stat_ptr->interface_name,
633			name) == NULL) {
634			return NULL;
635			}
636	ats	1.38	if ((ifr.ifr_flags & IFF_UP) != 0) {
637	pajs	1.35	network_iface_stat_ptr->up = 1;
638	ats	1.38	} else {
639	pajs	1.35	network_iface_stat_ptr->up = 0;
640			}
641
642	ats	1.38	memset(&ethcmd, 0, sizeof ethcmd);
643			ethcmd.cmd = ETHTOOL_GSET;
644			ifr.ifr_data = (caddr_t) &ethcmd;
645
646			err = ioctl(sock, SIOCETHTOOL, &ifr);
647			if (err == 0) {
648			network_iface_stat_ptr->speed = ethcmd.speed;
649
650			switch (ethcmd.duplex) {
651			case 0x00:
652			network_iface_stat_ptr->dup = FULL_DUPLEX;
653			break;
654			case 0x01:
655			network_iface_stat_ptr->dup = HALF_DUPLEX;
656			break;
657			default:
658			network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
659			}
660			} else {
661			/* Not all interfaces support the ethtool ioctl. */
662	ats	1.39	network_iface_stat_ptr->speed = 0;
663	ats	1.38	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
664	pajs	1.27	}
665	ats	1.38
666	pajs	1.27	ifaces++;
667			}
668	pajs	1.30	close(sock);
669	ats	1.38	fclose(f);
670	pajs	1.27	#endif
671	pajs	1.26	*entries = ifaces;
672	pajs	1.25	return network_iface_stats;
673			}
674