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 1.42 2004/02/14 12:22:45 ats 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>
#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++;
        }
}

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->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){
                                /* Not a network interface, so skip to the next entry */
                                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){
                                /* Not a network interface, so skip to the next entry */
                                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)
#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->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->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;
#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):
#if defined(FREEBSD) && !defined(FREEBSD5)
                        case(IFM_1000_TX):
                        case(IFM_1000_FX):
#else
                        case(IFM_1000_T):
#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;
        }

        for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
                if (!strcmp(ksp->ks_class, "net")) {
                        kstat_read(kc, ksp, NULL);
                        if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
                                /* Not a network interface, so skip to the next entry */
                                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;
                        network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);

                        if((knp=kstat_data_lookup(ksp, "link_up"))==NULL){
                                /* Not a network interface, so skip to the next entry */
                                continue;
                        }
                        /* Solaris has 1 for up, and 0 for not. As we do too */
                        network_iface_stat_ptr->up = knp->value.ui32;

                        if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
                                /* Not a network interface, so skip to the next entry */
                                continue;
                        }

                        network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
                        if(knp->value.ui32 == 2){
                                network_iface_stat_ptr->dup = FULL_DUPLEX;
                        }
                        if(knp->value.ui32 == 1){
                                network_iface_stat_ptr->dup = HALF_DUPLEX;
                        }

                        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;
                        ifaces++;
                }
        }
        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:	1.43
Committed:	Sat Feb 14 15:48:42 2004 UTC (20 years, 3 months ago) by ats
Content type:	text/plain
Branch:	MAIN
Changes since 1.42:	+3 -3 lines
Log Message:	ifaces doesn't need to be static.
#	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	1.43	* $Id: network_stats.c,v 1.42 2004/02/14 12:22:45 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	tdb	1.11	#include <time.h>
32	pajs	1.1	#ifdef SOLARIS
33			#include <kstat.h>
34			#include <sys/sysinfo.h>
35	pajs	1.6	#endif
36			#ifdef LINUX
37			#include <stdio.h>
38			#include <sys/types.h>
39			#include <regex.h>
40	pajs	1.27	#include <sys/ioctl.h>
41			#include <sys/socket.h>
42			#include <net/if.h>
43			#include <ctype.h>
44	pajs	1.6	#include "tools.h"
45	pajs	1.27	/* Stuff which could be defined by defining KERNEL, but
46			* that would be a bad idea, so we'll just declare it here
47			*/
48			typedef __uint8_t u8;
49			typedef __uint16_t u16;
50			typedef __uint32_t u32;
51	ats	1.42	typedef __uint64_t u64;
52	pajs	1.27	#include <linux/ethtool.h>
53			#include <linux/sockios.h>
54	ats	1.32	#include <unistd.h>
55	pajs	1.1	#endif
56	ats	1.18	#ifdef ALLBSD
57	pajs	1.14	#include <sys/types.h>
58			#include <sys/socket.h>
59			#include <ifaddrs.h>
60			#include <net/if.h>
61	pajs	1.26	#include <net/if_media.h>
62			#include <sys/ioctl.h>
63	pajs	1.14	#endif
64	pajs	1.1
65	pajs	1.3	static network_stat_t *network_stats=NULL;
66			static int interfaces=0;
67	pajs	1.1
68	pajs	1.3	void network_stat_init(int start, int end, network_stat_t *net_stats){
69
70			for(net_stats+=start; start<end; start++){
71			net_stats->interface_name=NULL;
72			net_stats->tx=0;
73			net_stats->rx=0;
74			net_stats++;
75			}
76			}
77
78			network_stat_t network_stat_malloc(int needed_entries, int cur_entries, network_stat_t *net_stats){
79
80			if(net_stats==NULL){
81
82			if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){
83	pajs	1.1	return NULL;
84			}
85	pajs	1.3	network_stat_init(0, needed_entries, net_stats);
86			*cur_entries=needed_entries;
87
88	pajs	1.1	return net_stats;
89			}
90	pajs	1.3
91
92			if(*cur_entries<needed_entries){
93			net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries));
94			if(net_stats==NULL){
95	pajs	1.1	return NULL;
96			}
97	pajs	1.3	network_stat_init(*cur_entries, needed_entries, net_stats);
98			*cur_entries=needed_entries;
99	pajs	1.1	}
100
101			return net_stats;
102			}
103
104	pajs	1.3
105	pajs	1.1	network_stat_t get_network_stats(int entries){
106	pajs	1.6
107			static int sizeof_network_stats=0;
108			network_stat_t *network_stat_ptr;
109
110			#ifdef SOLARIS
111	pajs	1.1	kstat_ctl_t *kc;
112			kstat_t *ksp;
113			kstat_named_t *knp;
114	pajs	1.6	#endif
115	pajs	1.3
116	pajs	1.6	#ifdef LINUX
117			FILE *f;
118	pajs	1.12	/* Horrible big enough, but it should be easily big enough */
119	pajs	1.6	char line[8096];
120			regex_t regex;
121			regmatch_t line_match[4];
122	pajs	1.14	#endif
123	ats	1.18	#ifdef ALLBSD
124	pajs	1.14	struct ifaddrs net, net_ptr;
125			struct if_data *net_data;
126			#endif
127
128	ats	1.18	#ifdef ALLBSD
129	pajs	1.14	if(getifaddrs(&net) != 0){
130			return NULL;
131			}
132
133			interfaces=0;
134
135			for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
136			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
137			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
138			if(network_stats==NULL){
139			return NULL;
140			}
141			network_stat_ptr=network_stats+interfaces;
142
143			if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
144			network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
145			if(network_stat_ptr->interface_name==NULL) return NULL;
146			net_data=(struct if_data *)net_ptr->ifa_data;
147			network_stat_ptr->rx=net_data->ifi_ibytes;
148			network_stat_ptr->tx=net_data->ifi_obytes;
149			network_stat_ptr->systime=time(NULL);
150			interfaces++;
151			}
152			freeifaddrs(net);
153	pajs	1.6	#endif
154	pajs	1.1
155	pajs	1.6	#ifdef SOLARIS
156	pajs	1.1	if ((kc = kstat_open()) == NULL) {
157			return NULL;
158			}
159
160	pajs	1.6	interfaces=0;
161	pajs	1.3
162	pajs	1.1	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
163			if (!strcmp(ksp->ks_class, "net")) {
164			kstat_read(kc, ksp, NULL);
165
166	pajs	1.7	#ifdef SOL7
167			#define RLOOKUP "rbytes"
168			#define WLOOKUP "obytes"
169			#define VALTYPE value.ui32
170			#else
171			#define RLOOKUP "rbytes64"
172			#define WLOOKUP "obytes64"
173			#define VALTYPE value.ui64
174			#endif
175
176			if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){
177	pajs	1.1	/* Not a network interface, so skip to the next entry */
178			continue;
179			}
180	pajs	1.3
181			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
182	pajs	1.1	if(network_stats==NULL){
183			return NULL;
184			}
185			network_stat_ptr=network_stats+interfaces;
186	pajs	1.7	network_stat_ptr->rx=knp->VALTYPE;
187	pajs	1.1
188	pajs	1.7	if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){
189	pajs	1.1	/* Not a network interface, so skip to the next entry */
190			continue;
191			}
192	pajs	1.7	network_stat_ptr->tx=knp->VALTYPE;
193	pajs	1.1	if(network_stat_ptr->interface_name!=NULL){
194			free(network_stat_ptr->interface_name);
195			}
196			network_stat_ptr->interface_name=strdup(ksp->ks_name);
197	pajs	1.3
198			network_stat_ptr->systime=time(NULL);
199	pajs	1.1	interfaces++;
200			}
201			}
202	pajs	1.2
203			kstat_close(kc);
204	pajs	1.6	#endif
205			#ifdef LINUX
206			f=fopen("/proc/net/dev", "r");
207			if(f==NULL){
208			return NULL;
209			}
210			/* read the 2 lines.. Its the title, so we dont care :) */
211			fgets(line, sizeof(line), f);
212			fgets(line, sizeof(line), f);
213
214
215			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){
216			return NULL;
217			}
218
219			interfaces=0;
220	pajs	1.1
221	pajs	1.6	while((fgets(line, sizeof(line), f)) != NULL){
222			if((regexec(&regex, line, 4, line_match, 0))!=0){
223			continue;
224			}
225			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
226			if(network_stats==NULL){
227			return NULL;
228			}
229			network_stat_ptr=network_stats+interfaces;
230
231			if(network_stat_ptr->interface_name!=NULL){
232			free(network_stat_ptr->interface_name);
233			}
234
235			network_stat_ptr->interface_name=get_string_match(line, &line_match[1]);
236			network_stat_ptr->rx=get_ll_match(line, &line_match[2]);
237			network_stat_ptr->tx=get_ll_match(line, &line_match[3]);
238			network_stat_ptr->systime=time(NULL);
239
240			interfaces++;
241			}
242	pajs	1.12	fclose(f);
243	pajs	1.13	regfree(&regex);
244	pajs	1.6
245			#endif
246	ats	1.20
247			#ifdef CYGWIN
248			return NULL;
249			#endif
250
251	pajs	1.1	*entries=interfaces;
252
253			return network_stats;
254	pajs	1.3	}
255
256	pajs	1.8	long long transfer_diff(long long new, long long old){
257	pajs	1.17	#if defined(SOL7) \|\| defined(LINUX) \|\| defined(FREEBSD)
258	ats	1.19	#define MAXVAL 4294967296LL
259	pajs	1.8	#else
260	ats	1.19	#define MAXVAL 18446744073709551616LL
261	pajs	1.8	#endif
262			long long result;
263	pajs	1.10	if(new>=old){
264	pajs	1.8	result = (new-old);
265			}else{
266			result = (MAXVAL+(new-old));
267			}
268
269			return result;
270
271			}
272
273	ats	1.24	network_stat_t get_network_stats_diff(int entries) {
274			static network_stat_t *diff = NULL;
275			static int diff_count = 0;
276			network_stat_t src, dest;
277			int i, j, new_count;
278
279			if (network_stats == NULL) {
280			/* No previous stats, so we can't calculate a difference. */
281			return get_network_stats(entries);
282	pajs	1.3	}
283
284	ats	1.24	/* Resize the results array to match the previous stats. */
285			diff = network_stat_malloc(interfaces, &diff_count, diff);
286			if (diff == NULL) {
287	pajs	1.3	return NULL;
288			}
289
290	ats	1.24	/* Copy the previous stats into the result. */
291			for (i = 0; i < diff_count; i++) {
292			src = &network_stats[i];
293			dest = &diff[i];
294	pajs	1.3
295	ats	1.24	if (dest->interface_name != NULL) {
296			free(dest->interface_name);
297	pajs	1.3	}
298	ats	1.24	dest->interface_name = strdup(src->interface_name);
299			dest->rx = src->rx;
300			dest->tx = src->tx;
301			dest->systime = src->systime;
302			}
303	pajs	1.3
304	ats	1.24	/* Get a new set of stats. */
305			if (get_network_stats(&new_count) == NULL) {
306	ats	1.21	return NULL;
307			}
308	pajs	1.3
309	ats	1.24	/* For each previous stat... */
310			for (i = 0; i < diff_count; i++) {
311			dest = &diff[i];
312
313			/* ... find the corresponding new stat ... */
314			for (j = 0; j < new_count; j++) {
315			/* Try the new stat in the same position first,
316			since that's most likely to be it. */
317			src = &network_stats[(i + j) % new_count];
318			if (strcmp(src->interface_name, dest->interface_name) == 0) {
319			break;
320			}
321			}
322			if (j == new_count) {
323			/* No match found. */
324			continue;
325	pajs	1.3	}
326
327	ats	1.24	/* ... and subtract the previous stat from it to get the
328			difference. */
329			dest->rx = transfer_diff(src->rx, dest->rx);
330			dest->tx = transfer_diff(src->tx, dest->tx);
331			dest->systime = src->systime - dest->systime;
332	pajs	1.3	}
333
334	ats	1.24	*entries = diff_count;
335			return diff;
336			}
337	pajs	1.25	/* NETWORK INTERFACE STATS */
338
339			void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
340
341			for(net_stats+=start; start<end; start++){
342			net_stats->interface_name=NULL;
343			net_stats->speed=0;
344	ats	1.31	net_stats->dup=UNKNOWN_DUPLEX;
345	pajs	1.25	net_stats++;
346			}
347			}
348
349			network_iface_stat_t network_iface_stat_malloc(int needed_entries, int cur_entries, network_iface_stat_t *net_stats){
350
351			if(net_stats==NULL){
352
353			if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
354			return NULL;
355			}
356			network_iface_stat_init(0, needed_entries, net_stats);
357			*cur_entries=needed_entries;
358
359			return net_stats;
360			}
361
362
363			if(*cur_entries<needed_entries){
364			net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
365			if(net_stats==NULL){
366			return NULL;
367			}
368			network_iface_stat_init(*cur_entries, needed_entries, net_stats);
369			*cur_entries=needed_entries;
370			}
371
372			return net_stats;
373			}
374
375			network_iface_stat_t get_network_iface_stats(int entries){
376			static network_iface_stat_t *network_iface_stats;
377			network_iface_stat_t *network_iface_stat_ptr;
378			static int sizeof_network_iface_stats=0;
379	ats	1.43	int ifaces = 0;
380	pajs	1.25
381			#ifdef SOLARIS
382			kstat_ctl_t *kc;
383			kstat_t *ksp;
384			kstat_named_t *knp;
385			#endif
386	pajs	1.26	#ifdef ALLBSD
387			struct ifaddrs net, net_ptr;
388			struct ifmediareq ifmed;
389	pajs	1.36	struct ifreq ifr;
390	ats	1.37	int sock;
391	pajs	1.26	int x;
392			#endif
393	pajs	1.27	#ifdef LINUX
394			FILE *f;
395			/* Horrible big enough, but it should be easily big enough */
396			char line[8096];
397			int sock;
398			#endif
399	ats	1.43
400	pajs	1.26	#ifdef ALLBSD
401			if(getifaddrs(&net) != 0){
402			return NULL;
403			}
404
405	ats	1.37	if ((sock = socket(AF_INET, SOCK_DGRAM, 0)) == 0) return NULL;
406	pajs	1.26
407			for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
408			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
409			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
410			if(network_iface_stats==NULL){
411			return NULL;
412			}
413			network_iface_stat_ptr = network_iface_stats + ifaces;
414
415	ats	1.40	memset(&ifr, 0, sizeof(ifr));
416			strncpy(ifr.ifr_name, net_ptr->ifa_name, sizeof(ifr.ifr_name));
417
418			if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0){
419			continue;
420			}
421			if((ifr.ifr_flags & IFF_UP) != 0){
422			network_iface_stat_ptr->up = 1;
423			}else{
424			network_iface_stat_ptr->up = 0;
425			}
426
427			if (network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
428			network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
429			if (network_iface_stat_ptr->interface_name == NULL) return NULL;
430
431			network_iface_stat_ptr->speed = 0;
432			network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
433			ifaces++;
434
435	pajs	1.26	memset(&ifmed, 0, sizeof(struct ifmediareq));
436			strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
437	ats	1.37	if(ioctl(sock, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
438	ats	1.40	/* Not all interfaces support the media ioctls. */
439	pajs	1.26	continue;
440			}
441
442			/* We may need to change this if we start doing wireless devices too */
443			if( (ifmed.ifm_active \| IFM_ETHER) != ifmed.ifm_active ){
444			/* Not a ETHER device */
445			continue;
446			}
447
448			/* Only intrested in the first 4 bits) - Assuming only ETHER devices */
449			x = ifmed.ifm_active & 0x0f;
450			switch(x){
451			/* 10 Mbit connections. Speedy :) */
452			case(IFM_10_T):
453			case(IFM_10_2):
454			case(IFM_10_5):
455			case(IFM_10_STP):
456			case(IFM_10_FL):
457			network_iface_stat_ptr->speed = 10;
458			break;
459			/* 100 Mbit conneections */
460			case(IFM_100_TX):
461			case(IFM_100_FX):
462			case(IFM_100_T4):
463			case(IFM_100_VG):
464			case(IFM_100_T2):
465			network_iface_stat_ptr->speed = 100;
466			break;
467			/* 1000 Mbit connections */
468			case(IFM_1000_SX):
469			case(IFM_1000_LX):
470			case(IFM_1000_CX):
471	ats	1.31	#if defined(FREEBSD) && !defined(FREEBSD5)
472	pajs	1.26	case(IFM_1000_TX):
473	tdb	1.28	case(IFM_1000_FX):
474	ats	1.31	#else
475			case(IFM_1000_T):
476	tdb	1.28	#endif
477	pajs	1.26	network_iface_stat_ptr->speed = 1000;
478			break;
479			/* We don't know what it is */
480			default:
481			network_iface_stat_ptr->speed = 0;
482			break;
483			}
484
485			if( (ifmed.ifm_active \| IFM_FDX) == ifmed.ifm_active ){
486			network_iface_stat_ptr->dup = FULL_DUPLEX;
487			}else if( (ifmed.ifm_active \| IFM_HDX) == ifmed.ifm_active ){
488			network_iface_stat_ptr->dup = HALF_DUPLEX;
489			}else{
490	ats	1.31	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
491	pajs	1.26	}
492	pajs	1.36
493	pajs	1.26	}
494			freeifaddrs(net);
495	ats	1.37	close(sock);
496	pajs	1.26	#endif
497	pajs	1.25
498			#ifdef SOLARIS
499			if ((kc = kstat_open()) == NULL) {
500			return NULL;
501			}
502
503			for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
504			if (!strcmp(ksp->ks_class, "net")) {
505			kstat_read(kc, ksp, NULL);
506			if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
507			/* Not a network interface, so skip to the next entry */
508			continue;
509			}
510			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
511			if(network_iface_stats==NULL){
512			return NULL;
513			}
514	pajs	1.26	network_iface_stat_ptr = network_iface_stats + ifaces;
515	pajs	1.25	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
516
517	pajs	1.35	if((knp=kstat_data_lookup(ksp, "link_up"))==NULL){
518			/* Not a network interface, so skip to the next entry */
519			continue;
520			}
521			/* Solaris has 1 for up, and 0 for not. As we do too */
522	pajs	1.41	network_iface_stat_ptr->up = knp->value.ui32;
523	pajs	1.35
524	pajs	1.25	if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
525			/* Not a network interface, so skip to the next entry */
526			continue;
527			}
528
529	pajs	1.33	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
530	tdb	1.34	if(knp->value.ui32 == 2){
531	pajs	1.25	network_iface_stat_ptr->dup = FULL_DUPLEX;
532	pajs	1.33	}
533	tdb	1.34	if(knp->value.ui32 == 1){
534	pajs	1.25	network_iface_stat_ptr->dup = HALF_DUPLEX;
535			}
536
537	pajs	1.26	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
538	pajs	1.25	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
539	pajs	1.26	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
540			ifaces++;
541	pajs	1.25	}
542			}
543			kstat_close(kc);
544
545			#endif
546	pajs	1.27	#ifdef LINUX
547			f = fopen("/proc/net/dev", "r");
548			if(f == NULL){
549			return NULL;
550			}
551
552			/* Setup stuff so we can do the ioctl to get the info */
553			if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
554			return NULL;
555			}
556
557			/* Ignore first 2 lines.. Just headings */
558	pajs	1.29	if((fgets(line, sizeof(line), f)) == NULL) return NULL;
559			if((fgets(line, sizeof(line), f)) == NULL) return NULL;
560	pajs	1.27
561			while((fgets(line, sizeof(line), f)) != NULL){
562			char name, ptr;
563			struct ifreq ifr;
564	ats	1.38	struct ethtool_cmd ethcmd;
565	pajs	1.27	int err;
566
567			/* Get the interface name */
568			ptr = strchr(line, ':');
569			if (ptr == NULL) continue;
570			*ptr='\0';
571			name = line;
572			while(isspace(*(name))){
573			name++;
574			}
575
576	ats	1.38	memset(&ifr, 0, sizeof ifr);
577			strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
578	pajs	1.27
579	ats	1.38	if (ioctl(sock, SIOCGIFFLAGS, &ifr) < 0) {
580			continue;
581			}
582	pajs	1.27
583			/* We have a good interface to add */
584			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
585			if(network_iface_stats==NULL){
586			return NULL;
587			}
588			network_iface_stat_ptr = network_iface_stats + ifaces;
589			network_iface_stat_ptr->interface_name = strdup(name);
590	ats	1.38	if ((ifr.ifr_flags & IFF_UP) != 0) {
591	pajs	1.35	network_iface_stat_ptr->up = 1;
592	ats	1.38	} else {
593	pajs	1.35	network_iface_stat_ptr->up = 0;
594			}
595
596	ats	1.38	memset(&ethcmd, 0, sizeof ethcmd);
597			ethcmd.cmd = ETHTOOL_GSET;
598			ifr.ifr_data = (caddr_t) &ethcmd;
599
600			err = ioctl(sock, SIOCETHTOOL, &ifr);
601			if (err == 0) {
602			network_iface_stat_ptr->speed = ethcmd.speed;
603
604			switch (ethcmd.duplex) {
605			case 0x00:
606			network_iface_stat_ptr->dup = FULL_DUPLEX;
607			break;
608			case 0x01:
609			network_iface_stat_ptr->dup = HALF_DUPLEX;
610			break;
611			default:
612			network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
613			}
614			} else {
615			/* Not all interfaces support the ethtool ioctl. */
616	ats	1.39	network_iface_stat_ptr->speed = 0;
617	ats	1.38	network_iface_stat_ptr->dup = UNKNOWN_DUPLEX;
618	pajs	1.27	}
619	ats	1.38
620	pajs	1.27	ifaces++;
621			}
622	pajs	1.30	close(sock);
623	ats	1.38	fclose(f);
624	pajs	1.27	#endif
625	pajs	1.26	*entries = ifaces;
626	pajs	1.25	return network_iface_stats;
627			}
628