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/* $Id: solaris.c 307 2003-08-31 12:54:36Z bwalle $ */
/*****************************************************************************
*
* init_osspecific()
*
* Init function
*
****************************************************************************/
void init_osspecific(netdata* data)
{
/* nothing */
#ifdef DEBUG
fprintf( stderr, "The netload plugin was initialized for Sun Solaris.\n" );
#endif
}
/*****************************************************************************
*
* checkinterface()
*
* check if a given interface exists, return TRUE if it does and FALSE if not
*
****************************************************************************/
int checkinterface(netdata* data)
{
int validinterface = FALSE;
int sockfd, i, numifs, numifreqs;
size_t bufsize;
char *buf;
struct ifreq ifr, *ifrp;
struct ifconf ifc;
unsigned long rx_o, tx_o;
if((sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0)
{
perror("socket");
return FALSE;
}
if (ioctl(sockfd, SIOCGIFNUM, (char *) &numifs) < 0)
{
perror("SIOCGIFNUM");
close(sockfd);
return FALSE;
}
bufsize = ((size_t) numifs) * sizeof(struct ifreq);
buf = (char *) malloc(bufsize);
if (!buf)
{
perror("malloc");
close(sockfd);
return FALSE;
}
ifc.ifc_len = bufsize;
ifc.ifc_buf = buf;
if (ioctl(sockfd, SIOCGIFCONF, (char *) &ifc) < 0)
{
perror("SIOCGIFCONF");
close(sockfd);
free(buf);
return FALSE;
}
ifrp = ifc.ifc_req;
numifreqs = ifc.ifc_len / sizeof(struct ifreq);
for (i = 0; i < numifreqs; i++, ifrp++)
{
memset((char *)&ifr, 0, sizeof(ifr));
strncpy(ifr.ifr_name, ifrp->ifr_name, sizeof(ifr.ifr_name));
/* do not check for loopback device as it cannot be monitored */
if (!strncmp(ifr.ifr_name, "lo", 2))
continue;
if (ioctl(sockfd, SIOCGIFFLAGS, &ifr) < 0)
{
perror("SIOCGIFFLAGS");
continue;
}
if (!strcmp(data->ifdata.if_name, ifr.ifr_name) && (ifr.ifr_flags & IFF_UP))
{
validinterface = TRUE;
break;
}
}
free(buf);
close(sockfd);
return validinterface;
}
/*****************************************************************************
*
* get_stat()
*
* use the Solaris kstat_*() interface to gather statistics
* We have to open/close *kc each time :(
*
****************************************************************************/
int get_stat(netdata* data)
{
kstat_t *ksp;
kstat_named_t *knp;
kstat_ctl_t *kc;
unsigned long rx_o, tx_o;
if ((kc = kstat_open()) == NULL)
{
perror("kstat_open()");
return 1;
}
rx_o = data->stats.rx_bytes; tx_o = data->stats.tx_bytes;
ksp = kstat_lookup(kc, NULL, -1, data->ifdata.if_name);
if (ksp && kstat_read(kc, ksp, NULL) >= 0)
{
knp = (kstat_named_t *)kstat_data_lookup(ksp, "opackets");
if (knp)
data->stats.tx_packets = knp->value.ui32;
knp = (kstat_named_t *)kstat_data_lookup(ksp, "ipackets");
if (knp)
data->stats.rx_packets = knp->value.ui32;
knp = (kstat_named_t *)kstat_data_lookup(ksp, "obytes");
if (knp)
data->stats.tx_bytes = knp->value.ui32;
knp = (kstat_named_t *)kstat_data_lookup(ksp, "rbytes");
if (knp)
data->stats.rx_bytes = knp->value.ui32;
knp = (kstat_named_t *)kstat_data_lookup(ksp, "oerrors");
if (knp)
data->stats.tx_errors = knp->value.ui32;
knp = (kstat_named_t *)kstat_data_lookup(ksp, "ierrors");
if (knp)
data->stats.rx_errors = knp->value.ui32;
}
kstat_close(kc);
/* check for overflows */
if (rx_o > data->stats.rx_bytes)
data->stats.rx_over++;
if (tx_o > data->stats.tx_bytes)
data->stats.tx_over++;
return 0;
}
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