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 1.27 2004/02/12 21:25:02 pajs 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;
#include <linux/ethtool.h>
#include <linux/sockios.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=NO_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;        
        static int ifaces;

#ifdef SOLARIS
        kstat_ctl_t *kc;
        kstat_t *ksp;
        kstat_named_t *knp;
#endif
#ifdef ALLBSD
        struct ifaddrs *net, *net_ptr;
        struct ifmediareq ifmed;
        int s;
        int x;
#endif
#ifdef LINUX
        FILE *f;
        /* Horrible big enough, but it should be easily big enough */
        char line[8096];
        void *eth_tool_cmd_buf;
        int buf_size;
        int sock;
#endif
        ifaces = 0;
#ifdef ALLBSD
        if(getifaddrs(&net) != 0){
                return NULL;
        }

        if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) 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(&ifmed, 0, sizeof(struct ifmediareq));
                strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
                if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
                        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;
                }

                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;

                /* 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 FREEBSD5
                        case(IFM_1000_T):
#else
                        case(IFM_1000_TX):
                        case(IFM_1000_FX):
#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 = NO_DUPLEX;
                }
                ifaces++;
        }       
        freeifaddrs(net);
#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_duplex"))==NULL){
                                /* Not a network interface, so skip to the next entry */
                                continue;
                        }

                        if(knp->value.ui64 == 0){
                                network_iface_stat_ptr->dup = FULL_DUPLEX;
                        }else{
                                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;
        }

        buf_size = sizeof(struct ethtool_cmd);
        eth_tool_cmd_buf = malloc(buf_size);
        if(eth_tool_cmd_buf == NULL) return NULL;

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

        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));
                memset(eth_tool_cmd_buf, 0, buf_size);
                ifr.ifr_data = (caddr_t) eth_tool_cmd_buf;
                strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));

                ethcmd = (struct ethtool_cmd *)(&ifr)->ifr_data;
                ethcmd->cmd = ETHTOOL_GSET;

                err = ioctl(sock, SIOCETHTOOL, &ifr);
                if(err < 0){
                        /* This could fail if the interface doesn't support the command. Carry
                         * on to the next :)
                         */
                        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);
                network_iface_stat_ptr->speed = ethcmd->speed;
                network_iface_stat_ptr->dup = NO_DUPLEX;
                if(ethcmd->duplex == 0x00){
                        network_iface_stat_ptr->dup = FULL_DUPLEX;
                }
                if(ethcmd->duplex == 0x01){
                        network_iface_stat_ptr->dup = HALF_DUPLEX;
                }
                ifaces++;
        }

        free(eth_tool_cmd_buf);
#endif
        *entries = ifaces;
        return network_iface_stats; 
}

Revision:	1.28
Committed:	Thu Feb 12 23:58:32 2004 UTC (20 years, 3 months ago) by tdb
Content type:	text/plain
Branch:	MAIN
Changes since 1.27:	+6 -1 lines
Log Message:	Fix on FreeBSD 5. Also add IFM_1000_FX missed on FreeBSD 4.
#	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	1.28	* $Id: network_stats.c,v 1.27 2004/02/12 21:25:02 pajs 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			#include <linux/ethtool.h>
52			#include <linux/sockios.h>
53	pajs	1.1	#endif
54	ats	1.18	#ifdef ALLBSD
55	pajs	1.14	#include <sys/types.h>
56			#include <sys/socket.h>
57			#include <ifaddrs.h>
58			#include <net/if.h>
59	pajs	1.26	#include <net/if_media.h>
60			#include <sys/ioctl.h>
61	pajs	1.14	#endif
62	pajs	1.1
63	pajs	1.3	static network_stat_t *network_stats=NULL;
64			static int interfaces=0;
65	pajs	1.1
66	pajs	1.3	void network_stat_init(int start, int end, network_stat_t *net_stats){
67
68			for(net_stats+=start; start<end; start++){
69			net_stats->interface_name=NULL;
70			net_stats->tx=0;
71			net_stats->rx=0;
72			net_stats++;
73			}
74			}
75
76			network_stat_t network_stat_malloc(int needed_entries, int cur_entries, network_stat_t *net_stats){
77
78			if(net_stats==NULL){
79
80			if((net_stats=malloc(needed_entries * sizeof(network_stat_t)))==NULL){
81	pajs	1.1	return NULL;
82			}
83	pajs	1.3	network_stat_init(0, needed_entries, net_stats);
84			*cur_entries=needed_entries;
85
86	pajs	1.1	return net_stats;
87			}
88	pajs	1.3
89
90			if(*cur_entries<needed_entries){
91			net_stats=realloc(net_stats, (sizeof(network_stat_t)*needed_entries));
92			if(net_stats==NULL){
93	pajs	1.1	return NULL;
94			}
95	pajs	1.3	network_stat_init(*cur_entries, needed_entries, net_stats);
96			*cur_entries=needed_entries;
97	pajs	1.1	}
98
99			return net_stats;
100			}
101
102	pajs	1.3
103	pajs	1.1	network_stat_t get_network_stats(int entries){
104	pajs	1.6
105			static int sizeof_network_stats=0;
106			network_stat_t *network_stat_ptr;
107
108			#ifdef SOLARIS
109	pajs	1.1	kstat_ctl_t *kc;
110			kstat_t *ksp;
111			kstat_named_t *knp;
112	pajs	1.6	#endif
113	pajs	1.3
114	pajs	1.6	#ifdef LINUX
115			FILE *f;
116	pajs	1.12	/* Horrible big enough, but it should be easily big enough */
117	pajs	1.6	char line[8096];
118			regex_t regex;
119			regmatch_t line_match[4];
120	pajs	1.14	#endif
121	ats	1.18	#ifdef ALLBSD
122	pajs	1.14	struct ifaddrs net, net_ptr;
123			struct if_data *net_data;
124			#endif
125
126	ats	1.18	#ifdef ALLBSD
127	pajs	1.14	if(getifaddrs(&net) != 0){
128			return NULL;
129			}
130
131			interfaces=0;
132
133			for(net_ptr=net;net_ptr!=NULL;net_ptr=net_ptr->ifa_next){
134			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
135			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
136			if(network_stats==NULL){
137			return NULL;
138			}
139			network_stat_ptr=network_stats+interfaces;
140
141			if(network_stat_ptr->interface_name!=NULL) free(network_stat_ptr->interface_name);
142			network_stat_ptr->interface_name=strdup(net_ptr->ifa_name);
143			if(network_stat_ptr->interface_name==NULL) return NULL;
144			net_data=(struct if_data *)net_ptr->ifa_data;
145			network_stat_ptr->rx=net_data->ifi_ibytes;
146			network_stat_ptr->tx=net_data->ifi_obytes;
147			network_stat_ptr->systime=time(NULL);
148			interfaces++;
149			}
150			freeifaddrs(net);
151	pajs	1.6	#endif
152	pajs	1.1
153	pajs	1.6	#ifdef SOLARIS
154	pajs	1.1	if ((kc = kstat_open()) == NULL) {
155			return NULL;
156			}
157
158	pajs	1.6	interfaces=0;
159	pajs	1.3
160	pajs	1.1	for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
161			if (!strcmp(ksp->ks_class, "net")) {
162			kstat_read(kc, ksp, NULL);
163
164	pajs	1.7	#ifdef SOL7
165			#define RLOOKUP "rbytes"
166			#define WLOOKUP "obytes"
167			#define VALTYPE value.ui32
168			#else
169			#define RLOOKUP "rbytes64"
170			#define WLOOKUP "obytes64"
171			#define VALTYPE value.ui64
172			#endif
173
174			if((knp=kstat_data_lookup(ksp, RLOOKUP))==NULL){
175	pajs	1.1	/* Not a network interface, so skip to the next entry */
176			continue;
177			}
178	pajs	1.3
179			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
180	pajs	1.1	if(network_stats==NULL){
181			return NULL;
182			}
183			network_stat_ptr=network_stats+interfaces;
184	pajs	1.7	network_stat_ptr->rx=knp->VALTYPE;
185	pajs	1.1
186	pajs	1.7	if((knp=kstat_data_lookup(ksp, WLOOKUP))==NULL){
187	pajs	1.1	/* Not a network interface, so skip to the next entry */
188			continue;
189			}
190	pajs	1.7	network_stat_ptr->tx=knp->VALTYPE;
191	pajs	1.1	if(network_stat_ptr->interface_name!=NULL){
192			free(network_stat_ptr->interface_name);
193			}
194			network_stat_ptr->interface_name=strdup(ksp->ks_name);
195	pajs	1.3
196			network_stat_ptr->systime=time(NULL);
197	pajs	1.1	interfaces++;
198			}
199			}
200	pajs	1.2
201			kstat_close(kc);
202	pajs	1.6	#endif
203			#ifdef LINUX
204			f=fopen("/proc/net/dev", "r");
205			if(f==NULL){
206			return NULL;
207			}
208			/* read the 2 lines.. Its the title, so we dont care :) */
209			fgets(line, sizeof(line), f);
210			fgets(line, sizeof(line), f);
211
212
213			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){
214			return NULL;
215			}
216
217			interfaces=0;
218	pajs	1.1
219	pajs	1.6	while((fgets(line, sizeof(line), f)) != NULL){
220			if((regexec(&regex, line, 4, line_match, 0))!=0){
221			continue;
222			}
223			network_stats=network_stat_malloc((interfaces+1), &sizeof_network_stats, network_stats);
224			if(network_stats==NULL){
225			return NULL;
226			}
227			network_stat_ptr=network_stats+interfaces;
228
229			if(network_stat_ptr->interface_name!=NULL){
230			free(network_stat_ptr->interface_name);
231			}
232
233			network_stat_ptr->interface_name=get_string_match(line, &line_match[1]);
234			network_stat_ptr->rx=get_ll_match(line, &line_match[2]);
235			network_stat_ptr->tx=get_ll_match(line, &line_match[3]);
236			network_stat_ptr->systime=time(NULL);
237
238			interfaces++;
239			}
240	pajs	1.12	fclose(f);
241	pajs	1.13	regfree(&regex);
242	pajs	1.6
243			#endif
244	ats	1.20
245			#ifdef CYGWIN
246			return NULL;
247			#endif
248
249	pajs	1.1	*entries=interfaces;
250
251			return network_stats;
252	pajs	1.3	}
253
254	pajs	1.8	long long transfer_diff(long long new, long long old){
255	pajs	1.17	#if defined(SOL7) \|\| defined(LINUX) \|\| defined(FREEBSD)
256	ats	1.19	#define MAXVAL 4294967296LL
257	pajs	1.8	#else
258	ats	1.19	#define MAXVAL 18446744073709551616LL
259	pajs	1.8	#endif
260			long long result;
261	pajs	1.10	if(new>=old){
262	pajs	1.8	result = (new-old);
263			}else{
264			result = (MAXVAL+(new-old));
265			}
266
267			return result;
268
269			}
270
271	ats	1.24	network_stat_t get_network_stats_diff(int entries) {
272			static network_stat_t *diff = NULL;
273			static int diff_count = 0;
274			network_stat_t src, dest;
275			int i, j, new_count;
276
277			if (network_stats == NULL) {
278			/* No previous stats, so we can't calculate a difference. */
279			return get_network_stats(entries);
280	pajs	1.3	}
281
282	ats	1.24	/* Resize the results array to match the previous stats. */
283			diff = network_stat_malloc(interfaces, &diff_count, diff);
284			if (diff == NULL) {
285	pajs	1.3	return NULL;
286			}
287
288	ats	1.24	/* Copy the previous stats into the result. */
289			for (i = 0; i < diff_count; i++) {
290			src = &network_stats[i];
291			dest = &diff[i];
292	pajs	1.3
293	ats	1.24	if (dest->interface_name != NULL) {
294			free(dest->interface_name);
295	pajs	1.3	}
296	ats	1.24	dest->interface_name = strdup(src->interface_name);
297			dest->rx = src->rx;
298			dest->tx = src->tx;
299			dest->systime = src->systime;
300			}
301	pajs	1.3
302	ats	1.24	/* Get a new set of stats. */
303			if (get_network_stats(&new_count) == NULL) {
304	ats	1.21	return NULL;
305			}
306	pajs	1.3
307	ats	1.24	/* For each previous stat... */
308			for (i = 0; i < diff_count; i++) {
309			dest = &diff[i];
310
311			/* ... find the corresponding new stat ... */
312			for (j = 0; j < new_count; j++) {
313			/* Try the new stat in the same position first,
314			since that's most likely to be it. */
315			src = &network_stats[(i + j) % new_count];
316			if (strcmp(src->interface_name, dest->interface_name) == 0) {
317			break;
318			}
319			}
320			if (j == new_count) {
321			/* No match found. */
322			continue;
323	pajs	1.3	}
324
325	ats	1.24	/* ... and subtract the previous stat from it to get the
326			difference. */
327			dest->rx = transfer_diff(src->rx, dest->rx);
328			dest->tx = transfer_diff(src->tx, dest->tx);
329			dest->systime = src->systime - dest->systime;
330	pajs	1.3	}
331
332	ats	1.24	*entries = diff_count;
333			return diff;
334			}
335	pajs	1.25	/* NETWORK INTERFACE STATS */
336
337			void network_iface_stat_init(int start, int end, network_iface_stat_t *net_stats){
338
339			for(net_stats+=start; start<end; start++){
340			net_stats->interface_name=NULL;
341			net_stats->speed=0;
342			net_stats->dup=NO_DUPLEX;
343			net_stats++;
344			}
345			}
346
347			network_iface_stat_t network_iface_stat_malloc(int needed_entries, int cur_entries, network_iface_stat_t *net_stats){
348
349			if(net_stats==NULL){
350
351			if((net_stats=malloc(needed_entries * sizeof(network_iface_stat_t)))==NULL){
352			return NULL;
353			}
354			network_iface_stat_init(0, needed_entries, net_stats);
355			*cur_entries=needed_entries;
356
357			return net_stats;
358			}
359
360
361			if(*cur_entries<needed_entries){
362			net_stats=realloc(net_stats, (sizeof(network_iface_stat_t)*needed_entries));
363			if(net_stats==NULL){
364			return NULL;
365			}
366			network_iface_stat_init(*cur_entries, needed_entries, net_stats);
367			*cur_entries=needed_entries;
368			}
369
370			return net_stats;
371			}
372
373			network_iface_stat_t get_network_iface_stats(int entries){
374			static network_iface_stat_t *network_iface_stats;
375			network_iface_stat_t *network_iface_stat_ptr;
376			static int sizeof_network_iface_stats=0;
377	pajs	1.26	static int ifaces;
378	pajs	1.25
379			#ifdef SOLARIS
380			kstat_ctl_t *kc;
381			kstat_t *ksp;
382			kstat_named_t *knp;
383			#endif
384	pajs	1.26	#ifdef ALLBSD
385			struct ifaddrs net, net_ptr;
386			struct ifmediareq ifmed;
387			int s;
388			int x;
389			#endif
390	pajs	1.27	#ifdef LINUX
391			FILE *f;
392			/* Horrible big enough, but it should be easily big enough */
393			char line[8096];
394			void *eth_tool_cmd_buf;
395			int buf_size;
396			int sock;
397			#endif
398	pajs	1.26	ifaces = 0;
399			#ifdef ALLBSD
400			if(getifaddrs(&net) != 0){
401			return NULL;
402			}
403
404			if ((s = socket(AF_INET, SOCK_DGRAM, 0)) == NULL) return NULL;
405
406			for(net_ptr=net; net_ptr!=NULL; net_ptr=net_ptr->ifa_next){
407			if(net_ptr->ifa_addr->sa_family != AF_LINK) continue;
408			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
409			if(network_iface_stats==NULL){
410			return NULL;
411			}
412			network_iface_stat_ptr = network_iface_stats + ifaces;
413
414			memset(&ifmed, 0, sizeof(struct ifmediareq));
415			strlcpy(ifmed.ifm_name, net_ptr->ifa_name, sizeof(ifmed.ifm_name));
416			if(ioctl(s, SIOCGIFMEDIA, (caddr_t)&ifmed) == -1){
417			continue;
418			}
419
420			/* We may need to change this if we start doing wireless devices too */
421			if( (ifmed.ifm_active \| IFM_ETHER) != ifmed.ifm_active ){
422			/* Not a ETHER device */
423			continue;
424			}
425
426			if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
427			network_iface_stat_ptr->interface_name = strdup(net_ptr->ifa_name);
428			if(network_iface_stat_ptr->interface_name == NULL) return NULL;
429
430			/* Only intrested in the first 4 bits) - Assuming only ETHER devices */
431			x = ifmed.ifm_active & 0x0f;
432			switch(x){
433			/* 10 Mbit connections. Speedy :) */
434			case(IFM_10_T):
435			case(IFM_10_2):
436			case(IFM_10_5):
437			case(IFM_10_STP):
438			case(IFM_10_FL):
439			network_iface_stat_ptr->speed = 10;
440			break;
441			/* 100 Mbit conneections */
442			case(IFM_100_TX):
443			case(IFM_100_FX):
444			case(IFM_100_T4):
445			case(IFM_100_VG):
446			case(IFM_100_T2):
447			network_iface_stat_ptr->speed = 100;
448			break;
449			/* 1000 Mbit connections */
450			case(IFM_1000_SX):
451			case(IFM_1000_LX):
452			case(IFM_1000_CX):
453	tdb	1.28	#ifdef FREEBSD5
454			case(IFM_1000_T):
455			#else
456	pajs	1.26	case(IFM_1000_TX):
457	tdb	1.28	case(IFM_1000_FX):
458			#endif
459	pajs	1.26	network_iface_stat_ptr->speed = 1000;
460			break;
461			/* We don't know what it is */
462			default:
463			network_iface_stat_ptr->speed = 0;
464			break;
465			}
466
467			if( (ifmed.ifm_active \| IFM_FDX) == ifmed.ifm_active ){
468			network_iface_stat_ptr->dup = FULL_DUPLEX;
469			}else if( (ifmed.ifm_active \| IFM_HDX) == ifmed.ifm_active ){
470			network_iface_stat_ptr->dup = HALF_DUPLEX;
471			}else{
472			network_iface_stat_ptr->dup = NO_DUPLEX;
473			}
474			ifaces++;
475			}
476			freeifaddrs(net);
477			#endif
478	pajs	1.25
479			#ifdef SOLARIS
480			if ((kc = kstat_open()) == NULL) {
481			return NULL;
482			}
483
484			for (ksp = kc->kc_chain; ksp; ksp = ksp->ks_next) {
485			if (!strcmp(ksp->ks_class, "net")) {
486			kstat_read(kc, ksp, NULL);
487			if((knp=kstat_data_lookup(ksp, "ifspeed"))==NULL){
488			/* Not a network interface, so skip to the next entry */
489			continue;
490			}
491			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
492			if(network_iface_stats==NULL){
493			return NULL;
494			}
495	pajs	1.26	network_iface_stat_ptr = network_iface_stats + ifaces;
496	pajs	1.25	network_iface_stat_ptr->speed = knp->value.ui64 / (1000*1000);
497
498			if((knp=kstat_data_lookup(ksp, "link_duplex"))==NULL){
499			/* Not a network interface, so skip to the next entry */
500			continue;
501			}
502
503			if(knp->value.ui64 == 0){
504			network_iface_stat_ptr->dup = FULL_DUPLEX;
505			}else{
506			network_iface_stat_ptr->dup = HALF_DUPLEX;
507			}
508
509	pajs	1.26	if(network_iface_stat_ptr->interface_name != NULL) free(network_iface_stat_ptr->interface_name);
510	pajs	1.25	network_iface_stat_ptr->interface_name = strdup(ksp->ks_name);
511	pajs	1.26	if(network_iface_stat_ptr->interface_name == NULL) return NULL;
512			ifaces++;
513	pajs	1.25	}
514			}
515			kstat_close(kc);
516
517			#endif
518	pajs	1.27	#ifdef LINUX
519
520			f = fopen("/proc/net/dev", "r");
521			if(f == NULL){
522			return NULL;
523			}
524
525			/* Setup stuff so we can do the ioctl to get the info */
526			if((sock = socket(AF_INET, SOCK_DGRAM, 0)) < 0){
527			return NULL;
528			}
529
530			buf_size = sizeof(struct ethtool_cmd);
531			eth_tool_cmd_buf = malloc(buf_size);
532			if(eth_tool_cmd_buf == NULL) return NULL;
533
534			/* Ignore first 2 lines.. Just headings */
535			fgets(line, sizeof(line), f);
536			fgets(line, sizeof(line), f);
537
538			while((fgets(line, sizeof(line), f)) != NULL){
539			char name, ptr;
540			struct ifreq ifr;
541			struct ethtool_cmd *ethcmd;
542			int err;
543
544			/* Get the interface name */
545			ptr = strchr(line, ':');
546			if (ptr == NULL) continue;
547			*ptr='\0';
548			name = line;
549			while(isspace(*(name))){
550			name++;
551			}
552
553			memset(&ifr, 0, sizeof(ifr));
554			memset(eth_tool_cmd_buf, 0, buf_size);
555			ifr.ifr_data = (caddr_t) eth_tool_cmd_buf;
556			strncpy(ifr.ifr_name, name, sizeof(ifr.ifr_name));
557
558			ethcmd = (struct ethtool_cmd *)(&ifr)->ifr_data;
559			ethcmd->cmd = ETHTOOL_GSET;
560
561			err = ioctl(sock, SIOCETHTOOL, &ifr);
562			if(err < 0){
563			/* This could fail if the interface doesn't support the command. Carry
564			* on to the next :)
565			*/
566			continue;
567			}
568
569			/* We have a good interface to add */
570			network_iface_stats=network_iface_stat_malloc((ifaces+1), &sizeof_network_iface_stats, network_iface_stats);
571			if(network_iface_stats==NULL){
572			return NULL;
573			}
574			network_iface_stat_ptr = network_iface_stats + ifaces;
575			network_iface_stat_ptr->interface_name = strdup(name);
576			network_iface_stat_ptr->speed = ethcmd->speed;
577			network_iface_stat_ptr->dup = NO_DUPLEX;
578			if(ethcmd->duplex == 0x00){
579			network_iface_stat_ptr->dup = FULL_DUPLEX;
580			}
581			if(ethcmd->duplex == 0x01){
582			network_iface_stat_ptr->dup = HALF_DUPLEX;
583			}
584			ifaces++;
585			}
586
587			free(eth_tool_cmd_buf);
588			#endif
589	pajs	1.26	*entries = ifaces;
590	pajs	1.25	return network_iface_stats;
591			}
592