/etc/snmp/mib2c.raw-table.conf is in libsnmp-dev 5.7.3+dfsg-1.7+deb9u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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######################################################################
## Do the .h file
######################################################################
@open ${name}.h@
/*
* Note: this file originally auto-generated by mib2c using
* $Id: mib2c.raw-table.conf 17436 2009-03-31 15:12:19Z dts12 $
*/
#ifndef $name.uc_H
#define $name.uc_H
void init_$name(void);
#endif /* $name.uc_H */
######################################################################
## Do the .c file
######################################################################
@open ${name}.c@
/*
* Note: this file originally auto-generated by mib2c using
* $Id: mib2c.raw-table.conf 17436 2009-03-31 15:12:19Z dts12 $
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "${name}.h"
@foreach $i table@
## Determine the first/last column names
@eval $first_column = "-"@
@eval $last_column = "-"@
@foreach $c column@
@if $c.readable@
@if "$first_column" eq "-"@
@eval $first_column = $c@
@end@
@eval $last_column = $c@
@end@
@end@
/* column number definitions for table $i */
@foreach $c column@
#define COLUMN_$c.uc $c.subid
@end@
/* Typical data structure for a row entry */
struct ${i}_entry {
/* Index values */
@foreach $idx index@
@if $idx.needlength@
$idx.decl $idx[NNN];
size_t ${idx}_len;
@else@
$idx.decl $idx;
@end@
@end@
/* Column values */
@foreach $c nonindex@
@if $c.readable@
@if $c.needlength@
$c.decl $c[NNN];
size_t ${c}_len;
@else@
$c.decl $c;
@end@
@if $c.settable@
@if !$c.rowstatus@
@if $c.needlength@
$c.decl old_$c[NNN];
size_t old_${c}_len;
@else@
$c.decl old_$c;
@end@
@end@
@end@
@end@
@end@
int valid;
};
/* create a new row in the table */
static struct ${i}_entry *
${i}_createEntry( int dummy
@foreach $idx index@
@if $idx.needlength@
, $idx.decl* $idx
, size_t ${idx}_len
@else@
, $idx.decl $idx
@end@
@end@
) {
struct ${i}_entry *entry;
entry = SNMP_MALLOC_TYPEDEF(struct ${i}_entry);
if (!entry)
return NULL;
/* XXX - insert entry into local data structure */
return entry;
}
/* remove a row from the table */
static void
${i}_removeEntry(struct ${i}_entry *entry) {
if (!entry)
return; /* Nothing to remove */
/* XXX - remove entry from local data structure */
if (entry)
SNMP_FREE( entry ); /* XXX - release any other internal resources */
}
/** determine the appropriate row for an exact request */
static struct ${i}_entry *
${i}_get_entry( netsnmp_variable_list *indexes ) {
struct ${i}_entry *row = NULL;
/* XXX - Use the 'indexes' parameter to retrieve the data
structure for the requested row, and return this. */
return row;
}
/** determine the appropriate row for an fuzzy request */
static struct ${i}_entry *
${i}_get_next_entry( netsnmp_handler_registration *reginfo,
netsnmp_request_info *request,
int column,
netsnmp_variable_list *indexes ) {
struct ${i}_entry *row = NULL;
oid build_space[MAX_OID_LEN];
size_t build_space_len = 0;
size_t index_oid_len = 0;
/* XXX - Use the 'indexes' parameter to identify the
next row in the table.... */
/* XXX .... update the 'indexes' parameter with the
appropriate index values ... */
/* ... and update the requested OID to match this instance */
memcpy(build_space, reginfo->rootoid, /* registered oid */
reginfo->rootoid_len * sizeof(oid));
build_space_len = reginfo->rootoid_len;
build_space[build_space_len++] = 1; /* entry */
build_space[build_space_len++] = column; /* column */
build_oid_noalloc(build_space + build_space_len,
MAX_OID_LEN - build_space_len, &index_oid_len,
NULL, 0, indexes);
snmp_set_var_objid(request->requestvb, build_space,
build_space_len + index_oid_len);
/* Finally, return the data structure for this row */
return row;
}
/** handles requests for the $i table */
static int
${i}_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 ${i}_entry *table_entry;
@if $i.settable@
int ret;
@end@
switch (reqinfo->mode) {
/*
* Read-support
*/
case MODE_GET:
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@foreach $c column@
@if $c.readable@
case COLUMN_$c.uc:
if ( !table_entry ) {
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
continue;
}
@if $c.needlength@
snmp_set_var_typed_value( request->requestvb, $c.type,
table_entry->$c,
table_entry->${c}_len);
@else@
snmp_set_var_typed_integer( request->requestvb, $c.type,
table_entry->$c);
@end@
break;
@end@
@end@
default:
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHOBJECT);
break;
}
}
break;
case MODE_GETNEXT:
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_next_entry( reginfo, request,
table_info->colnum, table_info->indexes );
switch (table_info->colnum) {
@foreach $c column@
@if $c.readable@
case COLUMN_$c.uc:
if ( !table_entry ) {
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHINSTANCE);
continue;
}
@if $c.needlength@
snmp_set_var_typed_value( request->requestvb, $c.type,
table_entry->$c,
table_entry->${c}_len);
@else@
snmp_set_var_typed_integer( request->requestvb, $c.type,
table_entry->$c);
@end@
break;
@end@
@end@
default:
netsnmp_set_request_error(reqinfo, request,
SNMP_NOSUCHOBJECT);
break;
}
}
break;
@if $i.settable@
/*
* Write-support
*/
case MODE_SET_RESERVE1:
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@foreach $c column@
@if $c.settable@
case COLUMN_$c.uc:
@if $c.rowstatus@
ret = netsnmp_check_vb_rowstatus(request->requestvb,
(table_entry ? RS_ACTIVE : RS_NONEXISTENT ));
@else@
@if $c.needlength@
/* or possibly 'netsnmp_check_vb_type_and_size' */
ret = netsnmp_check_vb_type_and_max_size(
request->requestvb, $c.type, sizeof(table_entry->$c));
@else@
/* or possibly 'netsnmp_check_vb_int_range' */
ret = netsnmp_check_vb_int( request->requestvb );
@end@
@end@
if ( ret != SNMP_ERR_NOERROR ) {
netsnmp_set_request_error( reqinfo, request, ret );
return SNMP_ERR_NOERROR;
}
break;
@end@
@end@
default:
netsnmp_set_request_error( reqinfo, request,
SNMP_ERR_NOTWRITABLE );
return SNMP_ERR_NOERROR;
}
}
break;
case MODE_SET_RESERVE2:
@if $i.creatable@
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@if $i.rowstatus@
@foreach $c column@
@if $c.rowstatus@
case COLUMN_$c.uc:
switch (*request->requestvb->val.integer) {
case RS_CREATEANDGO:
case RS_CREATEANDWAIT:
table_entry = ${i}_createEntry( 0
@foreach $idx index@
@if $idx.needlength@
, table_info->indexes->val.string
, table_info->indexes->val_len
@else@
, *table_info->indexes->val.integer
@end@
@end@
);
if ( !table_entry ) {
netsnmp_set_request_error( reqinfo, request,
SNMP_ERR_RESOURCEUNAVAILABLE );
return SNMP_ERR_NOERROR;
}
}
@end@
@end@
@else@
@foreach $c column@
@if $c.creatable@
case COLUMN_$c.uc:
@end@
@end@
if ( !table_entry ) {
table_entry = ${i}_createEntry( 0
@foreach $idx index@
@if $idx.needlength@
, table_info->indexes->val.string
, table_info->indexes->val_len
@else@
, *table_info->indexes->val.integer
@end@
@end@
);
if ( !table_entry ) {
netsnmp_set_request_error( reqinfo, request,
SNMP_ERR_RESOURCEUNAVAILABLE );
return SNMP_ERR_NOERROR;
}
}
break;
@end@
}
}
@end@
break;
case MODE_SET_FREE:
@if $i.creatable@
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@if $i.rowstatus@
@foreach $c column@
@if $c.rowstatus@
case COLUMN_$c.uc:
switch (*request->requestvb->val.integer) {
case RS_CREATEANDGO:
case RS_CREATEANDWAIT:
if (table_entry && !table_entry->valid) {
${i}_removeEntry(table_entry);
}
}
@end@
@end@
@else@
@foreach $c column@
@if $c.creatable@
case COLUMN_$c.uc:
@end@
@end@
if ( table_entry && !table_entry->valid ) {
${i}_removeEntry(table_entry);
}
break;
@end@
}
}
@end@
break;
case MODE_SET_ACTION:
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@foreach $c column@
@if $c.settable@
@if !$c.rowstatus@
case COLUMN_$c.uc:
@if $c.needlength@
memcpy( table_entry->old_$c,
table_entry->$c,
sizeof(table_entry->$c));
table_entry->old_${c}_len =
table_entry->${c}_len;
memset( table_entry->$c, 0,
sizeof(table_entry->$c));
memcpy( table_entry->$c,
request->requestvb->val.string,
request->requestvb->val_len);
table_entry->${c}_len =
request->requestvb->val_len;
@else@
table_entry->old_$c = table_entry->$c;
table_entry->$c = *request->requestvb->val.integer;
@end@
break;
@end@
@end@
@end@
}
}
@if $i.rowstatus@
/* Check the internal consistency of an active row */
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@foreach $c column@
@if $c.rowstatus@
case COLUMN_$c.uc:
switch (*request->requestvb->val.integer) {
case RS_ACTIVE:
case RS_CREATEANDGO:
if (/* XXX */) {
netsnmp_set_request_error( reqinfo, request,
SNMP_ERR_INCONSISTENTVALUE );
return SNMP_ERR_NOERROR;
}
}
@end@
@end@
}
}
@end@
break;
case MODE_SET_UNDO:
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@foreach $c column@
@if $c.settable@
case COLUMN_$c.uc:
@if $i.rowstatus@
@if $c.rowstatus@
switch (*request->requestvb->val.integer) {
case RS_CREATEANDGO:
case RS_CREATEANDWAIT:
if (table_entry && !table_entry->valid) {
${i}_removeEntry(table_entry);
}
}
@else@
@if $c.needlength@
memcpy( table_entry->$c,
table_entry->old_$c,
sizeof(table_entry->$c));
memset( table_entry->old_$c, 0,
sizeof(table_entry->$c));
table_entry->${c}_len =
table_entry->old_${c}_len;
@else@
table_entry->$c = table_entry->old_$c;
table_entry->old_$c = 0;
@end@
@end@
@else@
@if $c.creatable@
if ( table_entry && !table_entry->valid ) {
${i}_removeEntry(table_entry);
} else {
@if $c.needlength@
memcpy( table_entry->$c,
table_entry->old_$c,
sizeof(table_entry->$c));
memset( table_entry->old_$c, 0,
sizeof(table_entry->$c));
table_entry->${c}_len =
table_entry->old_${c}_len;
@else@
table_entry->$c = table_entry->old_$c;
table_entry->old_$c = 0;
@end@
}
@else@
@if $c.needlength@
memcpy( table_entry->$c,
table_entry->old_$c,
sizeof(table_entry->$c));
memset( table_entry->old_$c, 0,
sizeof(table_entry->$c));
table_entry->${c}_len =
table_entry->old_${c}_len;
@else@
table_entry->$c = table_entry->old_$c;
table_entry->old_$c = 0;
@end@
@end@
@end@
break;
@end@
@end@
}
}
break;
case MODE_SET_COMMIT:
@if $i.creatable@
for (request=requests; request; request=request->next) {
table_info = netsnmp_extract_table_info( request);
table_entry = ${i}_get_entry( table_info->indexes );
switch (table_info->colnum) {
@if $i.rowstatus@
@foreach $c column@
@if $c.rowstatus@
case COLUMN_$c.uc:
switch (*request->requestvb->val.integer) {
case RS_CREATEANDGO:
table_entry->valid = 1;
/* Fall-through */
case RS_ACTIVE:
table_entry->$c = RS_ACTIVE;
break;
case RS_CREATEANDWAIT:
table_entry->valid = 1;
/* Fall-through */
case RS_NOTINSERVICE:
table_entry->$c = RS_NOTINSERVICE;
break;
case RS_DESTROY:
${i}_removeEntry(table_entry);
}
@end@
@end@
@else@
@foreach $c column@
@if $c.creatable@
case COLUMN_$c.uc:
@end@
@end@
if ( table_entry && !table_entry->valid ) {
table_entry->valid = 1;
}
@end@
}
}
@end@
break;
@end@
}
return SNMP_ERR_NOERROR;
}
/** Initialize the $i table by defining its contents and how it's structured */
static void
initialize_table_$i(void)
{
const oid ${i}_oid[] = {$i.commaoid};
netsnmp_handler_registration *reg;
netsnmp_table_registration_info *table_info;
reg = netsnmp_create_handler_registration(
"$i", ${i}_handler,
${i}_oid, OID_LENGTH(${i}_oid),
@if $i.settable@
HANDLER_CAN_RWRITE
@else@
HANDLER_CAN_RONLY
@end@
);
table_info = SNMP_MALLOC_TYPEDEF( netsnmp_table_registration_info );
netsnmp_table_helper_add_indexes(table_info,
@foreach $idx index@
$idx.type, /* index: $idx */
@end@
0);
table_info->min_column = COLUMN_$first_column.uc;
table_info->max_column = COLUMN_$last_column.uc;
netsnmp_register_table( reg, table_info );
/* Initialise the contents of the table here */
}
@end@
/** Initializes the $name module */
void
init_$name(void)
{
/* here we initialize all the tables we're planning on supporting */
@foreach $i table@
initialize_table_$i();
@end@
}
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