int NET_IF_DISCOVERY(AGENT_REQUEST *request, AGENT_RESULT *result)
{
#if defined(HAVE_LIBPERFSTAT)
int rc, i, ret = SYSINFO_RET_FAIL;
perfstat_id_t ps_id;
perfstat_netinterface_t *ps_netif = NULL;
struct zbx_json j;
/* check how many perfstat_netinterface_t structures are available */
if (-1 == (rc = perfstat_netinterface(NULL, NULL, sizeof(perfstat_netinterface_t), 0)))
{
SET_MSG_RESULT(result, zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno)));
return SYSINFO_RET_FAIL;
}
zbx_json_init(&j, ZBX_JSON_STAT_BUF_LEN);
zbx_json_addarray(&j, ZBX_PROTO_TAG_DATA);
if (0 == rc) /* no network interfaces found */
{
ret = SYSINFO_RET_OK;
goto end;
}
ps_netif = zbx_malloc(ps_netif, rc * sizeof(perfstat_netinterface_t));
/* set name to first interface */
strscpy(ps_id.name, FIRST_NETINTERFACE); /* pseudo-name for the first network interface */
/* ask to get all the structures available in one call */
/* return code is number of structures returned */
if (-1 != (rc = perfstat_netinterface(&ps_id, ps_netif, sizeof(perfstat_netinterface_t), rc)))
ret = SYSINFO_RET_OK;
/* collecting of the information for each of the interfaces */
for (i = 0; i < rc; i++)
{
zbx_json_addobject(&j, NULL);
zbx_json_addstring(&j, "{#IFNAME}", ps_netif[i].name, ZBX_JSON_TYPE_STRING);
zbx_json_close(&j);
}
zbx_free(ps_netif);
end:
zbx_json_close(&j);
SET_STR_RESULT(result, strdup(j.buffer));
zbx_json_free(&j);
return ret;
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Agent was compiled without support for Perfstat API."));
return SYSINFO_RET_FAIL;
#endif
}
static int get_net_stat(const char *if_name, net_stat_t *ns)
{
#if defined(HAVE_LIBPERFSTAT)
perfstat_id_t ps_id;
perfstat_netinterface_t ps_netif;
#endif
assert(ns);
#if defined(HAVE_LIBPERFSTAT)
strscpy(ps_id.name, if_name);
if (-1 == perfstat_netinterface(&ps_id, &ps_netif, sizeof(ps_netif), 1))
return SYSINFO_RET_FAIL;
ns->ibytes = (zbx_uint64_t)ps_netif.ibytes;
ns->ipackets = (zbx_uint64_t)ps_netif.ipackets;
ns->ierr = (zbx_uint64_t)ps_netif.ierrors;
ns->obytes = (zbx_uint64_t)ps_netif.obytes;
ns->opackets = (zbx_uint64_t)ps_netif.opackets;
ns->oerr = (zbx_uint64_t)ps_netif.oerrors;
ns->colls = (zbx_uint64_t)ps_netif.collisions;
return SYSINFO_RET_OK;
#else
return SYSINFO_RET_FAIL;
#endif
}
void net_collect(char * tags) {
gettimeofday(&tv2, NULL);
char data[16] = "";
perfstat_id_t name;
perfstat_netinterface_t *ub;
int nnetinterface, i;
nnetinterface = perfstat_netinterface(NULL, NULL,
sizeof(perfstat_netinterface_t), 0);
ub = malloc(sizeof(perfstat_netinterface_t) * nnetinterface);
strcpy(name.name, "");
if (perfstat_netinterface(&name, ub, sizeof(perfstat_netinterface_t),
nnetinterface) >= 0) {
for (i = 0; i < nnetinterface; i++) {
/* IN */
char * tagsin = mktag(tags, sin, ub[i].name);
/* bytes */
sprintf(data, "%8llu", ub[i].ibytes);
sendCollectedData(tv2.tv_sec, "proc.net.bytes", data, tagsin);
/* errors */
sprintf(data, "%8llu", ub[i].ierrors);
sendCollectedData(tv2.tv_sec, "proc.net.errs", data, tagsin);
free(tagsin);
/* OUT */
char * tagsout = mktag(tags, sout, ub[i].name);
/* bytes */
sprintf(data, "%8llu", ub[i].obytes);
sendCollectedData(tv2.tv_sec, "proc.net.bytes", data, tagsout);
/* errors */
sprintf(data, "%8llu", ub[i].oerrors);
sendCollectedData(tv2.tv_sec, "proc.net.errs", data, tagsout);
free(tagsout);
}
}
free(ub);
}
static int get_net_stat(const char *if_name, net_stat_t *ns, char **error)
{
#if defined(HAVE_LIBPERFSTAT)
perfstat_id_t ps_id;
perfstat_netinterface_t ps_netif;
if (NULL == if_name || '\0' == *if_name)
{
*error = zbx_strdup(NULL, "Network interface name cannot be empty.");
return SYSINFO_RET_FAIL;
}
strscpy(ps_id.name, if_name);
if (-1 == perfstat_netinterface(&ps_id, &ps_netif, sizeof(ps_netif), 1))
{
*error = zbx_dsprintf(NULL, "Cannot obtain system information: %s", zbx_strerror(errno));
return SYSINFO_RET_FAIL;
}
ns->ibytes = (zbx_uint64_t)ps_netif.ibytes;
ns->ipackets = (zbx_uint64_t)ps_netif.ipackets;
ns->ierr = (zbx_uint64_t)ps_netif.ierrors;
ns->obytes = (zbx_uint64_t)ps_netif.obytes;
ns->opackets = (zbx_uint64_t)ps_netif.opackets;
ns->oerr = (zbx_uint64_t)ps_netif.oerrors;
ns->colls = (zbx_uint64_t)ps_netif.collisions;
return SYSINFO_RET_OK;
#else
SET_MSG_RESULT(result, zbx_strdup(NULL, "Agent was compiled without support for Perfstat API."));
return SYSINFO_RET_FAIL;
#endif
}
static int interface_read (void)
{
#if HAVE_GETIFADDRS
struct ifaddrs *if_list;
struct ifaddrs *if_ptr;
/* Darwin/Mac OS X and possible other *BSDs */
#if HAVE_STRUCT_IF_DATA
# define IFA_DATA if_data
# define IFA_RX_BYTES ifi_ibytes
# define IFA_TX_BYTES ifi_obytes
# define IFA_RX_PACKT ifi_ipackets
# define IFA_TX_PACKT ifi_opackets
# define IFA_RX_ERROR ifi_ierrors
# define IFA_TX_ERROR ifi_oerrors
/* #endif HAVE_STRUCT_IF_DATA */
#elif HAVE_STRUCT_NET_DEVICE_STATS
# define IFA_DATA net_device_stats
# define IFA_RX_BYTES rx_bytes
# define IFA_TX_BYTES tx_bytes
# define IFA_RX_PACKT rx_packets
# define IFA_TX_PACKT tx_packets
# define IFA_RX_ERROR rx_errors
# define IFA_TX_ERROR tx_errors
#else
# error "No suitable type for `struct ifaddrs->ifa_data' found."
#endif
struct IFA_DATA *if_data;
if (getifaddrs (&if_list) != 0)
return (-1);
for (if_ptr = if_list; if_ptr != NULL; if_ptr = if_ptr->ifa_next)
{
if (if_ptr->ifa_addr != NULL && if_ptr->ifa_addr->sa_family == AF_LINK) {
if_data = (struct IFA_DATA *) if_ptr->ifa_data;
if_submit (if_ptr->ifa_name, "if_octets",
if_data->IFA_RX_BYTES,
if_data->IFA_TX_BYTES);
if_submit (if_ptr->ifa_name, "if_packets",
if_data->IFA_RX_PACKT,
if_data->IFA_TX_PACKT);
if_submit (if_ptr->ifa_name, "if_errors",
if_data->IFA_RX_ERROR,
if_data->IFA_TX_ERROR);
}
}
freeifaddrs (if_list);
/* #endif HAVE_GETIFADDRS */
#elif KERNEL_LINUX
FILE *fh;
char buffer[1024];
derive_t incoming, outgoing;
char *device;
char *dummy;
char *fields[16];
int numfields;
if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
{
char errbuf[1024];
WARNING ("interface plugin: fopen: %s",
sstrerror (errno, errbuf, sizeof (errbuf)));
return (-1);
}
while (fgets (buffer, 1024, fh) != NULL)
{
if (!(dummy = strchr(buffer, ':')))
continue;
dummy[0] = '\0';
dummy++;
device = buffer;
while (device[0] == ' ')
device++;
if (device[0] == '\0')
continue;
numfields = strsplit (dummy, fields, 16);
if (numfields < 11)
continue;
incoming = atoll (fields[0]);
outgoing = atoll (fields[8]);
if_submit (device, "if_octets", incoming, outgoing);
incoming = atoll (fields[1]);
outgoing = atoll (fields[9]);
if_submit (device, "if_packets", incoming, outgoing);
incoming = atoll (fields[2]);
outgoing = atoll (fields[10]);
if_submit (device, "if_errors", incoming, outgoing);
incoming = atoll (fields[3]);
outgoing = atoll (fields[11]);
if_submit (device, "if_dropped", incoming, outgoing);
}
fclose (fh);
/* #endif KERNEL_LINUX */
#elif HAVE_LIBKSTAT
int i;
derive_t rx;
derive_t tx;
char iname[DATA_MAX_NAME_LEN];
if (kc == NULL)
return (-1);
for (i = 0; i < numif; i++)
{
if (kstat_read (kc, ksp[i], NULL) == -1)
continue;
if (unique_name)
ssnprintf(iname, sizeof(iname), "%s_%d_%s", ksp[i]->ks_module, ksp[i]->ks_instance, ksp[i]->ks_name);
else
sstrncpy(iname, ksp[i]->ks_name, sizeof(iname));
/* try to get 64bit counters */
rx = get_kstat_value (ksp[i], "rbytes64");
tx = get_kstat_value (ksp[i], "obytes64");
/* or fallback to 32bit */
if (rx == -1LL)
rx = get_kstat_value (ksp[i], "rbytes");
if (tx == -1LL)
tx = get_kstat_value (ksp[i], "obytes");
if ((rx != -1LL) || (tx != -1LL))
if_submit (iname, "if_octets", rx, tx);
/* try to get 64bit counters */
rx = get_kstat_value (ksp[i], "ipackets64");
tx = get_kstat_value (ksp[i], "opackets64");
/* or fallback to 32bit */
if (rx == -1LL)
rx = get_kstat_value (ksp[i], "ipackets");
if (tx == -1LL)
tx = get_kstat_value (ksp[i], "opackets");
if ((rx != -1LL) || (tx != -1LL))
if_submit (iname, "if_packets", rx, tx);
/* no 64bit error counters yet */
rx = get_kstat_value (ksp[i], "ierrors");
tx = get_kstat_value (ksp[i], "oerrors");
if ((rx != -1LL) || (tx != -1LL))
if_submit (iname, "if_errors", rx, tx);
}
/* #endif HAVE_LIBKSTAT */
#elif defined(HAVE_LIBSTATGRAB)
sg_network_io_stats *ios;
int i, num;
ios = sg_get_network_io_stats (&num);
for (i = 0; i < num; i++)
if_submit (ios[i].interface_name, "if_octets", ios[i].rx, ios[i].tx);
/* #endif HAVE_LIBSTATGRAB */
#elif defined(HAVE_PERFSTAT)
perfstat_id_t id;
int i, ifs;
if ((nif = perfstat_netinterface(NULL, NULL, sizeof(perfstat_netinterface_t), 0)) < 0)
{
char errbuf[1024];
WARNING ("interface plugin: perfstat_netinterface: %s",
sstrerror (errno, errbuf, sizeof (errbuf)));
return (-1);
}
if (pnif != nif || ifstat == NULL)
{
free(ifstat);
ifstat = malloc(nif * sizeof (*ifstat));
}
pnif = nif;
id.name[0]='\0';
if ((ifs = perfstat_netinterface(&id, ifstat, sizeof(perfstat_netinterface_t), nif)) < 0)
{
char errbuf[1024];
WARNING ("interface plugin: perfstat_netinterface (interfaces=%d): %s",
nif, sstrerror (errno, errbuf, sizeof (errbuf)));
return (-1);
}
for (i = 0; i < ifs; i++)
{
if_submit (ifstat[i].name, "if_octets", ifstat[i].ibytes, ifstat[i].obytes);
if_submit (ifstat[i].name, "if_packets", ifstat[i].ipackets ,ifstat[i].opackets);
if_submit (ifstat[i].name, "if_errors", ifstat[i].ierrors, ifstat[i].oerrors );
}
#endif /* HAVE_PERFSTAT */
return (0);
} /* int interface_read */
