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/*
* Note: this file originally auto-generated by mib2c using
* : mib2c.iterate_access.conf,v 1.4 2003/07/01 00:15:11 hardaker Exp $
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-features.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "netSnmpHostsTable.h"
#include "netSnmpHostsTable_checkfns.h"
#include "netSnmpHostsTable_access.h"
netsnmp_feature_require(oid_stash)
netsnmp_feature_require(oid_stash_get_data)
netsnmp_feature_require(oid_stash_add_data)
static netsnmp_oid_stash_node *undoStorage = NULL;
static netsnmp_oid_stash_node *commitStorage = NULL;
struct undoInfo {
void *ptr;
size_t len;
};
struct commitInfo {
void *data_context;
int have_committed;
int new_row;
};
void
netSnmpHostsTable_free_undoInfo(void *vptr)
{
struct undoInfo *ui = vptr;
if (!ui)
return;
SNMP_FREE(ui->ptr);
SNMP_FREE(ui);
}
/** Initialize the netSnmpHostsTable table by defining its contents and how it's structured */
void
initialize_table_netSnmpHostsTable(void)
{
static oid netSnmpHostsTable_oid[] =
{ 1, 3, 6, 1, 4, 1, 8072, 2, 2, 2 };
netsnmp_table_registration_info *table_info;
netsnmp_handler_registration *my_handler;
netsnmp_iterator_info *iinfo;
/** create the table registration information structures */
table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
iinfo = SNMP_MALLOC_TYPEDEF(netsnmp_iterator_info);
/** if your table is read only, it's easiest to change the
HANDLER_CAN_RWRITE definition below to HANDLER_CAN_RONLY */
my_handler = netsnmp_create_handler_registration("netSnmpHostsTable",
netSnmpHostsTable_handler,
netSnmpHostsTable_oid,
OID_LENGTH
(netSnmpHostsTable_oid),
HANDLER_CAN_RWRITE);
if (!my_handler || !table_info || !iinfo) {
snmp_log(LOG_ERR,
"malloc failed in initialize_table_netSnmpHostsTable");
return; /** Serious error. */
}
/***************************************************
* Setting up the table's definition
*/
netsnmp_table_helper_add_indexes(table_info, ASN_OCTET_STR,
/** index: netSnmpHostName */
0);
/** Define the minimum and maximum accessible columns. This
optimizes retrieval. */
table_info->min_column = 2;
table_info->max_column = 5;
/** iterator access routines */
iinfo->get_first_data_point = netSnmpHostsTable_get_first_data_point;
iinfo->get_next_data_point = netSnmpHostsTable_get_next_data_point;
/** you may wish to set these as well */
iinfo->make_data_context = netSnmpHostsTable_context_convert_function;
iinfo->free_data_context = netSnmpHostsTable_data_free;
iinfo->free_loop_context_at_end = netSnmpHostsTable_loop_free;
/** tie the two structures together */
iinfo->table_reginfo = table_info;
/***************************************************
* registering the table with the master agent
*/
DEBUGMSGTL(("initialize_table_netSnmpHostsTable",
"Registering table netSnmpHostsTable as a table iterator\n"));
netsnmp_register_table_iterator2(my_handler, iinfo);
}
/** Initializes the netSnmpHostsTable module */
void
init_netSnmpHostsTable(void)
{
/** here we initialize all the tables we're planning on supporting */
initialize_table_netSnmpHostsTable();
}
/** handles requests for the netSnmpHostsTable table, if anything else needs to be done */
int
netSnmpHostsTable_handler(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_request_info *request;
netsnmp_table_request_info *table_info;
struct commitInfo *ci = NULL;
void *data_context = NULL;
for (request = requests; request; request = request->next) {
/* column and row index encoded portion */
netsnmp_variable_list *var = request->requestvb;
const oid * const suffix = var->name + reginfo->rootoid_len + 1;
const size_t suffix_len = var->name_length - (reginfo->rootoid_len + 1);
if (request->processed != 0)
continue;
switch (reqinfo->mode) {
case MODE_GET:
case MODE_SET_RESERVE1:
data_context = netsnmp_extract_iterator_context(request);
if (data_context == NULL) {
if (reqinfo->mode == MODE_GET) {
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
continue;
}
}
break;
default: /* == the other SET modes */
ci = netsnmp_oid_stash_get_data(commitStorage,
suffix + 1, suffix_len - 1);
break;
}
/** extracts the information about the table from the request */
table_info = netsnmp_extract_table_info(request);
/** table_info->colnum contains the column number requested */
/** table_info->indexes contains a linked list of snmp variable
bindings for the indexes of the table. Values in the list
have been set corresponding to the indexes of the
request */
if (table_info == NULL) {
continue;
}
switch (reqinfo->mode) {
case MODE_GET:
switch (table_info->colnum) {
case COLUMN_NETSNMPHOSTADDRESSTYPE:
{
long *retval;
size_t retval_len = 0;
retval =
get_netSnmpHostAddressType(data_context,
&retval_len);
snmp_set_var_typed_value(var, ASN_INTEGER,
(const u_char *) retval,
retval_len);
}
break;
case COLUMN_NETSNMPHOSTADDRESS:
{
char *retval;
size_t retval_len = 0;
retval =
get_netSnmpHostAddress(data_context, &retval_len);
snmp_set_var_typed_value(var, ASN_OCTET_STR,
(const u_char *) retval,
retval_len);
}
break;
case COLUMN_NETSNMPHOSTSTORAGE:
{
long *retval;
size_t retval_len = 0;
retval =
get_netSnmpHostStorage(data_context, &retval_len);
snmp_set_var_typed_value(var, ASN_INTEGER,
(const u_char *) retval,
retval_len);
}
break;
case COLUMN_NETSNMPHOSTROWSTATUS:
{
long *retval;
size_t retval_len = 0;
retval =
get_netSnmpHostRowStatus(data_context,
&retval_len);
snmp_set_var_typed_value(var, ASN_INTEGER,
(const u_char *) retval,
retval_len);
}
break;
default:
/** We shouldn't get here */
snmp_log(LOG_ERR,
"problem encountered in netSnmpHostsTable_handler: unknown column\n");
}
break;
case MODE_SET_RESERVE1:
ci = netsnmp_oid_stash_get_data(commitStorage,
suffix + 1, suffix_len - 1);
if (!ci) {
/** create the commit storage info */
ci = SNMP_MALLOC_STRUCT(commitInfo);
if (!data_context) {
ci->data_context =
netSnmpHostsTable_create_data_context(table_info->
indexes);
ci->new_row = 1;
} else {
ci->data_context = data_context;
}
netsnmp_oid_stash_add_data(&commitStorage,
suffix + 1, suffix_len - 1, ci);
}
break;
case MODE_SET_RESERVE2:
switch (table_info->colnum) {
case COLUMN_NETSNMPHOSTADDRESSTYPE:
{
long *retval;
size_t retval_len = 0;
struct undoInfo *ui = NULL;
int ret;
/** first, get the old value */
retval =
get_netSnmpHostAddressType(ci->data_context,
&retval_len);
if (retval) {
ui = SNMP_MALLOC_STRUCT(undoInfo);
ui->len = retval_len;
ui->ptr = netsnmp_memdup(retval, ui->len);
}
/** check the new value, possibly against the
older value for a valid state transition */
ret =
check_netSnmpHostAddressType(request->requestvb->
type,
(long *) request->
requestvb->val.string,
request->requestvb->
val_len, retval,
retval_len);
if (ret != 0) {
netsnmp_set_request_error(reqinfo, request, ret);
netSnmpHostsTable_free_undoInfo(ui);
} else if (ui) {
/** remember information for undo purposes later */
netsnmp_oid_stash_add_data(&undoStorage,
suffix, suffix_len, ui);
}
}
break;
case COLUMN_NETSNMPHOSTADDRESS:
{
char *retval;
size_t retval_len = 0;
struct undoInfo *ui = NULL;
int ret;
/** first, get the old value */
retval =
get_netSnmpHostAddress(ci->data_context,
&retval_len);
if (retval) {
ui = SNMP_MALLOC_STRUCT(undoInfo);
ui->len = retval_len;
ui->ptr = netsnmp_memdup(retval, ui->len);
}
/** check the new value, possibly against the
older value for a valid state transition */
ret =
check_netSnmpHostAddress(request->requestvb->type,
(char *) request->
requestvb->val.string,
request->requestvb->
val_len, retval,
retval_len);
if (ret != 0) {
netsnmp_set_request_error(reqinfo, request, ret);
netSnmpHostsTable_free_undoInfo(ui);
} else if (ui) {
/** remember information for undo purposes later */
netsnmp_oid_stash_add_data(&undoStorage,
suffix, suffix_len, ui);
}
}
break;
case COLUMN_NETSNMPHOSTSTORAGE:
{
long *retval;
size_t retval_len = 0;
struct undoInfo *ui = NULL;
int ret;
/** first, get the old value */
retval =
get_netSnmpHostStorage(ci->data_context,
&retval_len);
if (retval) {
ui = SNMP_MALLOC_STRUCT(undoInfo);
ui->len = retval_len;
ui->ptr = netsnmp_memdup(retval, ui->len);
}
/** check the new value, possibly against the
older value for a valid state transition */
ret =
check_netSnmpHostStorage(request->requestvb->type,
(long *) request->
requestvb->val.string,
request->requestvb->
val_len, retval,
retval_len);
if (ret != 0) {
netsnmp_set_request_error(reqinfo, request, ret);
netSnmpHostsTable_free_undoInfo(ui);
} else if (ui) {
/** remember information for undo purposes later */
netsnmp_oid_stash_add_data(&undoStorage,
suffix, suffix_len, ui);
}
}
break;
case COLUMN_NETSNMPHOSTROWSTATUS:
{
long *retval;
size_t retval_len = 0;
struct undoInfo *ui = NULL;
int ret;
/** first, get the old value */
retval =
get_netSnmpHostRowStatus(ci->data_context,
&retval_len);
if (retval) {
ui = SNMP_MALLOC_STRUCT(undoInfo);
ui->len = retval_len;
ui->ptr = netsnmp_memdup(retval, ui->len);
}
/** check the new value, possibly against the
older value for a valid state transition */
ret =
check_netSnmpHostRowStatus(request->requestvb->
type,
(long *) request->
requestvb->val.string,
request->requestvb->
val_len, retval,
retval_len);
if (ret != 0) {
netsnmp_set_request_error(reqinfo, request, ret);
netSnmpHostsTable_free_undoInfo(ui);
} else if (ui) {
/** remember information for undo purposes later */
netsnmp_oid_stash_add_data(&undoStorage,
suffix, suffix_len, ui);
}
}
break;
default:
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_NOTWRITABLE);
break;
}
break;
case MODE_SET_ACTION:
/** save a variable copy */
switch (table_info->colnum) {
case COLUMN_NETSNMPHOSTADDRESSTYPE:
{
int ret;
ret = set_netSnmpHostAddressType(ci->data_context,
(long *) request->
requestvb->val.string,
request->requestvb->
val_len);
if (ret) {
netsnmp_set_request_error(reqinfo, request, ret);
}
}
break;
case COLUMN_NETSNMPHOSTADDRESS:
{
int ret;
ret = set_netSnmpHostAddress(ci->data_context,
(char *) request->
requestvb->val.string,
request->requestvb->
val_len);
if (ret) {
netsnmp_set_request_error(reqinfo, request, ret);
}
}
break;
case COLUMN_NETSNMPHOSTSTORAGE:
{
int ret;
ret = set_netSnmpHostStorage(ci->data_context,
(long *) request->
requestvb->val.string,
request->requestvb->
val_len);
if (ret) {
netsnmp_set_request_error(reqinfo, request, ret);
}
}
break;
case COLUMN_NETSNMPHOSTROWSTATUS:
{
int ret;
ret = set_netSnmpHostRowStatus(ci->data_context,
(long *) request->
requestvb->val.string,
request->requestvb->
val_len);
if (ret) {
netsnmp_set_request_error(reqinfo, request, ret);
}
if (*request->requestvb->val.integer == RS_DESTROY) {
ci->new_row = -1;
}
}
break;
}
break;
case MODE_SET_COMMIT:
if (!ci->have_committed) {
/** do this once per row only */
netSnmpHostsTable_commit_row(&ci->data_context,
ci->new_row);
ci->have_committed = 1;
}
break;
case MODE_SET_UNDO:
/** save a variable copy */
switch (table_info->colnum) {
case COLUMN_NETSNMPHOSTADDRESSTYPE:
{
int retval;
struct undoInfo *ui;
ui = netsnmp_oid_stash_get_data(undoStorage,
suffix, suffix_len);
retval =
set_netSnmpHostAddressType(ci->data_context,
ui->ptr, ui->len);
if (retval) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_UNDOFAILED);
}
}
break;
case COLUMN_NETSNMPHOSTADDRESS:
{
int retval;
struct undoInfo *ui;
ui = netsnmp_oid_stash_get_data(undoStorage,
suffix, suffix_len);
retval =
set_netSnmpHostAddress(ci->data_context, ui->ptr,
ui->len);
if (retval) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_UNDOFAILED);
}
}
break;
case COLUMN_NETSNMPHOSTSTORAGE:
{
int retval;
struct undoInfo *ui;
ui = netsnmp_oid_stash_get_data(undoStorage,
suffix, suffix_len);
retval =
set_netSnmpHostStorage(ci->data_context, ui->ptr,
ui->len);
if (retval) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_UNDOFAILED);
}
}
break;
case COLUMN_NETSNMPHOSTROWSTATUS:
{
int retval;
struct undoInfo *ui;
ui = netsnmp_oid_stash_get_data(undoStorage,
suffix, suffix_len);
retval =
set_netSnmpHostRowStatus(ci->data_context, ui->ptr,
ui->len);
if (retval) {
netsnmp_set_request_error(reqinfo, request,
SNMP_ERR_UNDOFAILED);
}
}
break;
}
break;
case MODE_SET_FREE:
break;
default:
snmp_log(LOG_ERR,
"problem encountered in netSnmpHostsTable_handler: unsupported mode\n");
}
}
/** clean up after all requset processing has ended */
switch (reqinfo->mode) {
case MODE_SET_UNDO:
case MODE_SET_FREE:
case MODE_SET_COMMIT:
/** clear out the undo cache */
netsnmp_oid_stash_free(&undoStorage,
netSnmpHostsTable_free_undoInfo);
netsnmp_oid_stash_free(&commitStorage, netsnmp_oid_stash_no_free);
}
return SNMP_ERR_NOERROR;
}