/*
* Dump IP statistics structure.
*/
void
ip_stats(void)
{
oid varname[MAX_OID_LEN], *ipentry;
int varname_len;
netsnmp_variable_list *var;
int count;
struct stat_table *sp = ip_stattab;
memmove(varname, oid_ipstats, sizeof(oid_ipstats));
varname_len = sizeof(oid_ipstats) / sizeof(oid);
ipentry = varname + 7;
printf("ip:\n");
count = sizeof(ip_stattab) / sizeof(struct stat_table);
while (count--) {
*ipentry = sp->entry;
var = getvarbyname(Session, varname, varname_len);
if (var && var->val.integer) {
putchar('\t');
printf(sp->description, *var->val.integer,
plural((int) *var->val.integer));
putchar('\n');
}
if (var)
snmp_free_var(var);
sp++;
}
}
/*
* Print a running summary of interface statistics.
* Repeat display every interval seconds, showing statistics
* collected over that interval. Assumes that interval is non-zero.
* First line printed at top of screen is always cumulative.
*/
static void
sidewaysintpr(unsigned int interval)
{
register struct iftot *ip, *total;
register int line;
struct iftot *lastif, *sum, *interesting, ifnow, *now = &ifnow;
struct variable_list *var;
oid varname[MAX_OID_LEN], *instance, *ifentry;
size_t varname_len;
int ifnum, cfg_nnets;
lastif = iftot;
sum = iftot + MAXIF - 1;
total = sum - 1;
interesting = iftot;
var = getvarbyname(Session, oid_cfg_nnets, sizeof(oid_cfg_nnets) / sizeof(oid));
if (var) {
cfg_nnets = *var->val.integer;
snmp_free_var(var);
}
else
return;
memmove(varname, oid_ifname, sizeof(oid_ifname));
varname_len = sizeof(oid_ifname) / sizeof(oid);
for (ifnum = 1, ip = iftot; ifnum <= cfg_nnets; ifnum++) {
char *cp;
ip->ift_name[0] = '(';
varname[10] = ifnum;
var = getvarbyname(Session, varname, varname_len);
if (var){
if (var->val_len >= (sizeof(ip->ift_name) - 3))
var->val_len = (sizeof(ip->ift_name) - 4);
memmove(ip->ift_name + 1, var->val.string, var->val_len);
snmp_free_var(var);
}
cp = (char *) strchr(ip->ift_name, ' ');
if ( cp != NULL )
*cp = '\0';
if (intrface && strcmp(ip->ift_name + 1, intrface) == 0)
interesting = ip;
ip->ift_name[15] = '\0';
cp = (char *) strchr(ip->ift_name, '\0');
sprintf(cp, ")");
ip++;
if (ip >= iftot + MAXIF - 2)
break;
}
lastif = ip;
timerSet(interval);
banner:
printf(" input %-6.6s output ", interesting->ift_name);
if (lastif - iftot > 0)
printf(" input (Total) output");
for (ip = iftot; ip < iftot + MAXIF; ip++) {
ip->ift_ip = 0;
ip->ift_ie = 0;
ip->ift_op = 0;
ip->ift_oe = 0;
ip->ift_co = 0;
}
putchar('\n');
printf("%10.10s %8.8s %10.10s %8.8s %8.8s ",
"packets", "errs", "packets", "errs", "colls");
if (lastif - iftot > 0)
printf("%10.10s %8.8s %10.10s %8.8s %8.8s ",
"packets", "errs", "packets", "errs", "colls");
putchar('\n');
fflush(stdout);
line = 0;
loop:
sum->ift_ip = 0;
sum->ift_ie = 0;
sum->ift_op = 0;
sum->ift_oe = 0;
sum->ift_co = 0;
memmove(varname, oid_ifinucastpkts, sizeof(oid_ifinucastpkts));
varname_len = sizeof(oid_ifinucastpkts) / sizeof(oid);
ifentry = varname + 9;
instance = varname + 10;
for (ifnum = 1, ip = iftot; ifnum <= cfg_nnets && ip < lastif; ip++, ifnum++) {
memset(now, 0, sizeof(*now));
*instance = ifnum;
*ifentry = INUCASTPKTS;
var = getvarbyname(Session, varname, varname_len);
if (var) {
now->ift_ip = *var->val.integer;
snmp_free_var(var);
}
*ifentry = INNUCASTPKTS;
var = getvarbyname(Session, varname, varname_len);
if (var) {
now->ift_ip += *var->val.integer;
snmp_free_var(var);
}
*ifentry = INERRORS;
var = getvarbyname(Session, varname, varname_len);
if (var) {
now->ift_ie = *var->val.integer;
snmp_free_var(var);
}
*ifentry = OUTUCASTPKTS;
var = getvarbyname(Session, varname, varname_len);
if (var) {
now->ift_op = *var->val.integer;
snmp_free_var(var);
}
*ifentry = OUTNUCASTPKTS;
var = getvarbyname(Session, varname, varname_len);
if (var) {
now->ift_op += *var->val.integer;
snmp_free_var(var);
}
*ifentry = OUTERRORS;
var = getvarbyname(Session, varname, varname_len);
if (var) {
now->ift_oe = *var->val.integer;
snmp_free_var(var);
}
if (ip == interesting)
printf("%10d %8d %10d %8d %8d ",
now->ift_ip - ip->ift_ip,
now->ift_ie - ip->ift_ie,
now->ift_op - ip->ift_op,
now->ift_oe - ip->ift_oe,
now->ift_co - ip->ift_co);
ip->ift_ip = now->ift_ip;
ip->ift_ie = now->ift_ie;
ip->ift_op = now->ift_op;
ip->ift_oe = now->ift_oe;
ip->ift_co = now->ift_co;
sum->ift_ip += ip->ift_ip;
sum->ift_ie += ip->ift_ie;
sum->ift_op += ip->ift_op;
sum->ift_oe += ip->ift_oe;
sum->ift_co += ip->ift_co;
}
if (lastif - iftot > 0)
printf("%10d %8d %10d %8d %8d ",
sum->ift_ip - total->ift_ip,
sum->ift_ie - total->ift_ie,
sum->ift_op - total->ift_op,
sum->ift_oe - total->ift_oe,
sum->ift_co - total->ift_co);
*total = *sum;
putchar('\n');
fflush(stdout);
line++;
timerPause();
timerSet(interval);
if (line == 21)
goto banner;
goto loop;
/*NOTREACHED*/
}
/*
* Print a description of the network interfaces.
*/
void
intpro(int interval)
{
oid varname[MAX_OID_LEN], *instance, *ifentry;
size_t varname_len;
int ifnum, cfg_nnets;
oid curifip [4];
struct variable_list *var;
struct snmp_pdu *request, *response;
int status;
int ifindex, oldindex = 0;
struct _if_info {
int ifindex;
char name[128];
char ip[128], route[128];
char ioctets[20], ierrs[20], ooctets[20], oerrs[20], outqueue[20];
int operstatus;
u_long netmask;
struct in_addr ifip, ifroute;
} *if_table, *cur_if;
int max_name = 4, max_route = 7, max_ip = 7, max_ioctets = 7, max_ooctets = 7;
int i;
if (interval) {
sidewaysintpr((unsigned)interval);
return;
}
var = getvarbyname(Session, oid_cfg_nnets, sizeof(oid_cfg_nnets) / sizeof(oid));
if (var && var->val.integer) {
cfg_nnets = *var->val.integer;
snmp_free_var(var);
}
else {
fprintf (stderr, "No response when requesting number of interfaces.\n");
return;
}
DEBUGMSGTL (("netstat:if", "cfg_nnets = %d\n", cfg_nnets));
memset (curifip, 0, sizeof (curifip));
if_table = (struct _if_info *) calloc (cfg_nnets, sizeof (*if_table));
cur_if = if_table;
for (ifnum = 1; ifnum <= cfg_nnets; ifnum++) {
register char *cp;
request = snmp_pdu_create (SNMP_MSG_GETNEXT);
memmove (varname, oid_ipadentaddr, sizeof (oid_ipadentaddr));
varname_len = sizeof (oid_ipadentaddr) / sizeof (oid);
instance = varname + 9;
memmove (varname + 10, curifip, sizeof (curifip));
*instance = IPIFINDEX;
snmp_add_null_var (request, varname, varname_len);
*instance = IPADDR;
snmp_add_null_var (request, varname, varname_len);
*instance = IPNETMASK;
snmp_add_null_var (request, varname, varname_len);
status = snmp_synch_response (Session, request, &response);
if (status != STAT_SUCCESS || response->errstat != SNMP_ERR_NOERROR) {
fprintf (stderr, "SNMP request failed for interface %d, variable %ld out of %d interfaces (IP)\n", ifnum, response->errindex, cfg_nnets);
cfg_nnets = ifnum;
break;
}
for (var = response->variables; var; var = var->next_variable) {
if (snmp_get_do_debugging()) {
print_variable (var->name, var->name_length, var);
}
switch (var->name [9]) {
case IPIFINDEX:
ifindex = *var->val.integer;
for (cur_if = if_table; cur_if->ifindex != ifindex && cur_if->ifindex != 0; cur_if++);
cur_if->ifindex = ifindex;
break;
case IPADDR:
memmove (curifip, var->name+10, sizeof (curifip));
memmove (&cur_if->ifip, var->val.string, sizeof (u_long));
break;
case IPNETMASK:
memmove (&cur_if->netmask, var->val.string, sizeof (u_long));
}
}
cur_if->ifroute.s_addr = cur_if->ifip.s_addr & cur_if->netmask;
if (cur_if->ifroute.s_addr)
strcpy(cur_if->route, netname (cur_if->ifroute, cur_if->netmask));
else strcpy(cur_if->route, "none");
if ((i = strlen(cur_if->route)) > max_route) max_route = i;
if (cur_if->ifip.s_addr)
strcpy(cur_if->ip, routename (cur_if->ifip));
else strcpy(cur_if->ip, "none");
if ((i = strlen(cur_if->ip)) > max_ip) max_ip = i;
snmp_free_pdu (response);
memmove (varname, oid_ifname, sizeof(oid_ifname));
varname_len = sizeof(oid_ifname) / sizeof(oid);
ifentry = varname + 9;
instance = varname + 10;
request = snmp_pdu_create (SNMP_MSG_GETNEXT);
*instance = oldindex;
*ifentry = IFINDEX;
snmp_add_null_var (request, varname, varname_len);
*ifentry = IFNAME;
snmp_add_null_var (request, varname, varname_len);
*ifentry = IFOPERSTATUS;
snmp_add_null_var (request, varname, varname_len);
*ifentry = INOCTETS;
snmp_add_null_var (request, varname, varname_len);
*ifentry = OUTOCTETS;
snmp_add_null_var (request, varname, varname_len);
while ((status = snmp_synch_response (Session, request, &response)) == STAT_SUCCESS) {
if (response->errstat != SNMP_ERR_NOSUCHNAME)
break;
if ((request = snmp_fix_pdu(response, SNMP_MSG_GETNEXT)) == NULL)
break;
snmp_free_pdu(response);
}
if (status != STAT_SUCCESS || response->errstat != SNMP_ERR_NOERROR) {
fprintf (stderr, "SNMP request failed for interface %d, variable %ld out of %d interfaces (IF)\n", ifnum, response->errindex, cfg_nnets);
cfg_nnets = ifnum;
break;
}
for (var = response->variables; var; var = var->next_variable) {
if (snmp_get_do_debugging()) {
print_variable (var->name, var->name_length, var);
}
if (!var->val.integer) continue;
switch (var->name [9]) {
case IFINDEX:
ifindex = *var->val.integer;
for (cur_if = if_table; cur_if->ifindex != ifindex && cur_if->ifindex != 0; cur_if++);
cur_if->ifindex = ifindex;
break;
case INOCTETS:
sprintf(cur_if->ioctets, "%lu", *var->val.integer);
i = strlen(cur_if->ioctets);
if (i > max_ioctets) max_ioctets = i;
break;
case OUTOCTETS:
sprintf(cur_if->ooctets, "%lu", *var->val.integer);
i = strlen(cur_if->ooctets);
if (i > max_ooctets) max_ooctets = i;
break;
case IFNAME:
oldindex = var->name[10];
if (var->val_len >= sizeof(cur_if->name))
var->val_len = sizeof(cur_if->name) - 1;
memmove (cur_if->name, var->val.string, var->val_len);
cur_if->name [var->val_len] = 0;
if ((i = strlen(cur_if->name)+1) > max_name) max_name = i;
break;
case IFOPERSTATUS:
cur_if->operstatus = *var->val.integer; break;
}
}
snmp_free_pdu (response);
if (intrface != NULL && strcmp(cur_if->name, intrface) != 0) {
cur_if->name [0] = 0;
continue;
}
if (cur_if->operstatus != MIB_IFSTATUS_UP) {
cp = strchr(cur_if->name, '\0');
*cp++ = '*';
*cp = '\0';
}
}
printf("%*.*s %*.*s %*.*s %*.*s %*.*s ",
-max_name, max_name, "Name",
-max_route, max_route, "Network",
-max_ip, max_ip, "Address",
max_ioctets, max_ioctets, "Ioctets",
max_ooctets, max_ooctets, "Ooctets");
putchar('\n');
for (ifnum = 0, cur_if = if_table; ifnum < cfg_nnets; ifnum++, cur_if++) {
if (cur_if->name [0] == 0) continue;
printf("%*.*s ", -max_name, max_name, cur_if->name);
printf("%*.*s ", -max_route, max_route, cur_if->route);
printf("%*.*s ", -max_ip, max_ip, cur_if->ip);
printf("%*s %*s", max_ioctets, cur_if->ioctets,
max_ioctets, cur_if->ooctets);
putchar('\n');
}
free(if_table);
}
/*
* Dump ICMP statistics.
*/
void
icmp_stats(void)
{
oid varname[MAX_OID_LEN], *icmpentry;
int varname_len;
netsnmp_variable_list *var;
int count, first;
struct stat_table *sp;
memmove(varname, oid_icmpstats, sizeof(oid_icmpstats));
varname_len = sizeof(oid_icmpstats) / sizeof(oid);
icmpentry = varname + 7;
printf("icmp:\n");
sp = icmp_stattab;
count = sizeof(icmp_stattab) / sizeof(struct stat_table);
while (count--) {
*icmpentry = sp->entry;
var = getvarbyname(Session, varname, varname_len);
if (var && var->val.integer) {
putchar('\t');
printf(sp->description, *var->val.integer,
plural((int) *var->val.integer));
putchar('\n');
}
if (var)
snmp_free_var(var);
sp++;
}
sp = icmp_outhistogram;
first = 1;
count = sizeof(icmp_outhistogram) / sizeof(struct stat_table);
while (count--) {
*icmpentry = sp->entry;
var = getvarbyname(Session, varname, varname_len);
if (var && var->val.integer && *var->val.integer != 0) {
if (first) {
printf("\tOutput Histogram:\n");
first = 0;
}
printf("\t\t");
printf(sp->description, *var->val.integer,
plural((int) *var->val.integer));
putchar('\n');
}
if (var)
snmp_free_var(var);
sp++;
}
sp = icmp_inhistogram;
first = 1;
count = sizeof(icmp_inhistogram) / sizeof(struct stat_table);
while (count--) {
*icmpentry = sp->entry;
var = getvarbyname(Session, varname, varname_len);
if (var && var->val.integer && *var->val.integer != 0) {
if (first) {
printf("\tInput Histogram:\n");
first = 0;
}
printf("\t\t");
printf(sp->description, *var->val.integer,
plural((int) *var->val.integer));
putchar('\n');
}
if (var)
snmp_free_var(var);
sp++;
}
}
