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/*
* ucdDemoPublic.c
*/
#include <net-snmp/net-snmp-config.h>
#if HAVE_STDLIB_H
#include <stdlib.h>
#endif
#if HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/library/tools.h>
#include "util_funcs/header_generic.h"
#include "ucdDemoPublic.h"
#define MYMAX 1024
#define MAXUSERS 10
int num = 0;
static char demoUsers[MAXUSERS][MYMAX + 1];
static char demopass[MYMAX + 1];
void
ucdDemo_parse_user(const char *word, char *line)
{
if (num == MAXUSERS)
return;
if (strlen(line) > MYMAX)
return;
strcpy(demoUsers[num++], line);
}
void
ucdDemo_parse_userpass(const char *word, char *line)
{
if (strlen(line) > MYMAX)
return;
strcpy(demopass, line);
}
/*
* this variable defines function callbacks and type return information
* for the ucdDemoPublic mib
*/
struct variable2 ucdDemoPublic_variables[] = {
{UCDDEMORESETKEYS, ASN_INTEGER, NETSNMP_OLDAPI_RWRITE,
var_ucdDemoPublic, 1, {1}},
{UCDDEMOPUBLICSTRING, ASN_OCTET_STR, NETSNMP_OLDAPI_RWRITE,
var_ucdDemoPublic, 1, {2}},
{UCDDEMOUSERLIST, ASN_OCTET_STR, NETSNMP_OLDAPI_RWRITE,
var_ucdDemoPublic, 1, {3}},
{UCDDEMOPASSPHRASE, ASN_OCTET_STR, NETSNMP_OLDAPI_RWRITE,
var_ucdDemoPublic, 1, {4}},
};
/*
* Define the OID pointer to the top of the mib tree that we're
* registering underneath
*/
oid ucdDemoPublic_variables_oid[] =
{ 1, 3, 6, 1, 4, 1, 2021, 14, 1, 1 };
void
init_ucdDemoPublic(void)
{
REGISTER_MIB("examples/ucdDemoPublic", ucdDemoPublic_variables,
variable2, ucdDemoPublic_variables_oid);
snmpd_register_config_handler("demoUser",
ucdDemo_parse_user, NULL, "USER");
snmpd_register_config_handler("demoPass",
ucdDemo_parse_userpass, NULL,
"PASSPHASE");
}
unsigned char publicString[MYMAX + 1];
unsigned char *
var_ucdDemoPublic(struct variable *vp,
oid * name,
size_t * length,
int exact, size_t * var_len, WriteMethod ** write_method)
{
static long long_ret;
static char string[MYMAX + 1], *cp;
int i;
*write_method = 0; /* assume it isnt writable for the time being */
*var_len = sizeof(long_ret); /* assume an integer and change later if not */
if (header_generic(vp, name, length, exact, var_len, write_method))
return 0;
/*
* this is where we do the value assignments for the mib results.
*/
switch (vp->magic) {
case UCDDEMORESETKEYS:
*write_method = write_ucdDemoResetKeys;
long_ret = 0;
return (unsigned char *) &long_ret;
case UCDDEMOPUBLICSTRING:
*write_method = write_ucdDemoPublicString;
*var_len = strlen((const char*)publicString);
return (unsigned char *) publicString;
case UCDDEMOUSERLIST:
cp = string;
for (i = 0; i < num; i++) {
snprintf(cp, sizeof(string)-strlen(string), " %s", demoUsers[i]);
string[MYMAX] = 0;
cp = cp + strlen(cp);
}
*var_len = strlen(string);
return (unsigned char *) string;
case UCDDEMOPASSPHRASE:
*var_len = strlen(demopass);
return (unsigned char *) demopass;
default:
DEBUGMSGTL(("snmpd", "unknown sub-id %d in var_ucdDemoPublic\n",
vp->magic));
}
return 0;
}
int
write_ucdDemoResetKeys(int action,
u_char * var_val,
u_char var_val_type,
size_t var_val_len,
u_char * statP, oid * name, size_t name_len)
{
/*
* variables we may use later
*/
static long long_ret;
unsigned char *engineID;
size_t engineIDLen;
int i;
struct usmUser *user;
if (var_val_type != ASN_INTEGER) {
DEBUGMSGTL(("ucdDemoPublic",
"write to ucdDemoResetKeys not ASN_INTEGER\n"));
return SNMP_ERR_WRONGTYPE;
}
if (var_val_len > sizeof(long_ret)) {
DEBUGMSGTL(("ucdDemoPublic",
"write to ucdDemoResetKeys: bad length\n"));
return SNMP_ERR_WRONGLENGTH;
}
if (action == COMMIT) {
long_ret = *((long *) var_val);
if (long_ret == 1) {
engineID = snmpv3_generate_engineID(&engineIDLen);
for (i = 0; i < num; i++) {
user = usm_get_user(engineID, engineIDLen, demoUsers[i]);
if (user) {
usm_set_user_password(user, "userSetAuthPass",
demopass);
usm_set_user_password(user, "userSetPrivPass",
demopass);
}
}
/*
* reset the keys
*/
}
}
return SNMP_ERR_NOERROR;
}
int
write_ucdDemoPublicString(int action,
u_char * var_val,
u_char var_val_type,
size_t var_val_len,
u_char * statP, oid * name, size_t name_len)
{
if (var_val_type != ASN_OCTET_STR) {
DEBUGMSGTL(("ucdDemoPublic",
"write to ucdDemoPublicString not ASN_OCTET_STR\n"));
return SNMP_ERR_WRONGTYPE;
}
if (var_val_len > MYMAX) {
DEBUGMSGTL(("ucdDemoPublic",
"write to ucdDemoPublicString: bad length\n"));
return SNMP_ERR_WRONGLENGTH;
}
if (action == COMMIT) {
sprintf((char*) publicString, "%.*s",
(int) SNMP_MIN(sizeof(publicString) - 1, var_val_len),
(const char*) var_val);
}
return SNMP_ERR_NOERROR;
}
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