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######################################################################
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######################################################################
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* Note: this file originally auto-generated by mib2c using
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* $Id: mib2c.iterate.conf,v 5.9 2003/06/04 00:14:41 hardaker Exp $
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/* function declarations */
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void init_$name(void);
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void initialize_table_$i(void);
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Netsnmp_Node_Handler ${i}_handler;
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Netsnmp_First_Data_Point ${i}_get_first_data_point;
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Netsnmp_Next_Data_Point ${i}_get_next_data_point;
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/* column number definitions for table $i */
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#include "${name}_columns.h"
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@run mib2c.column_defines.conf@
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#include "${name}_enums.h"
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@run mib2c.column_enums.conf@
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#endif /* $name.uc_H */
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######################################################################
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######################################################################
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* Note: this file originally auto-generated by mib2c using
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* $Id: mib2c.iterate.conf,v 5.9 2003/06/04 00:14:41 hardaker Exp $
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#include <net-snmp/net-snmp-config.h>
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#include <net-snmp/net-snmp-includes.h>
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#include <net-snmp/agent/net-snmp-agent-includes.h>
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/** Initialize the $i table by defining its contents and how it's structured */
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initialize_table_$i(void)
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static oid ${i}_oid[] = {$i.commaoid};
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netsnmp_table_registration_info *table_info;
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netsnmp_handler_registration *my_handler;
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netsnmp_iterator_info *iinfo;
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/** create the table registration information structures */
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table_info = SNMP_MALLOC_TYPEDEF(netsnmp_table_registration_info);
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iinfo = SNMP_MALLOC_TYPEDEF(netsnmp_iterator_info);
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/** if your table is read only, it's easiest to change the
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HANDLER_CAN_RWRITE definition below to HANDLER_CAN_RONLY */
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my_handler = netsnmp_create_handler_registration("$i",
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if (!my_handler || !table_info || !iinfo) {
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snmp_log(LOG_ERR, "malloc failed in initialize_table_$i");
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return; /* Serious error. */
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/***************************************************
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* Setting up the table's definition
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netsnmp_table_helper_add_indexes(table_info,
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$idx.type, /* index: $idx */
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/** Define the minimum and maximum accessible columns. This
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optimizes retrival. */
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@eval $minv = 0xffffffff@
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@if $c.access =~ /(Read|Create)/@
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@eval $minv = min($minv, $c.subid)@
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@eval $maxv = max($maxv, $c.subid)@
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table_info->min_column = $minv;
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table_info->max_column = $maxv;
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/* iterator access routines */
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iinfo->get_first_data_point = ${i}_get_first_data_point;
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iinfo->get_next_data_point = ${i}_get_next_data_point;
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/** you may wish to set these as well */
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#ifdef MAYBE_USE_THESE
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iinfo->make_data_context = ${i}_context_convert_function;
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iinfo->free_data_context = ${i}_data_free;
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/** pick *only* one of these if you use them */
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iinfo->free_loop_context = ${i}_loop_free;
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iinfo->free_loop_context_at_end = ${i}_loop_free;
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/** tie the two structures together */
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iinfo->table_reginfo = table_info;
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/***************************************************
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* registering the table with the master agent
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DEBUGMSGTL(("initialize_table_$i",
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"Registering table $i as a table iterator\n"));
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netsnmp_register_table_iterator(my_handler, iinfo);
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/** Initializes the $name module */
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/** here we initialize all the tables we're planning on supporting */
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initialize_table_$i();
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/** returns the first data point within the $i table data.
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Set the my_loop_context variable to the first data point structure
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of your choice (from which you can find the next one). This could
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be anything from the first node in a linked list, to an integer
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pointer containing the beginning of an array variable.
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Set the my_data_context variable to something to be returned to
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you later (in your main ${i}_handler routine) that will provide
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you with the data to return in a given row. This could be the
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same pointer as what my_loop_context is set to, or something
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The put_index_data variable contains a list of snmp variable
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bindings, one for each index in your table. Set the values of
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each appropriately according to the data matching the first row
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and return the put_index_data variable at the end of the function.
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netsnmp_variable_list *
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${i}_get_first_data_point(void **my_loop_context, void **my_data_context,
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netsnmp_variable_list *put_index_data,
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netsnmp_iterator_info *mydata)
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netsnmp_variable_list *vptr;
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*my_loop_context = /** XXX */;
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*my_data_context = /** XXX */;
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vptr = put_index_data;
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snmp_set_var_value(vptr, (u_char *) /** XXX: $idx data */, /** XXX: length of $idx data */);
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vptr = vptr->next_variable;
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return put_index_data;
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/** functionally the same as ${i}_get_first_data_point, but
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my_loop_context has already been set to a previous value and should
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be updated to the next in the list. For example, if it was a
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linked list, you might want to cast it to your local data type and
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then return my_loop_context->next. The my_data_context pointer
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should be set to something you need later (in your main
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${i}_handler routine) and the indexes in put_index_data updated
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netsnmp_variable_list *
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${i}_get_next_data_point(void **my_loop_context, void **my_data_context,
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netsnmp_variable_list *put_index_data,
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netsnmp_iterator_info *mydata)
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netsnmp_variable_list *vptr;
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*my_loop_context = /** XXX */;
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*my_data_context = /** XXX */;
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vptr = put_index_data;
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snmp_set_var_value(vptr, (u_char *) /** XXX: $idx data */, /** XXX: length of $idx data */);
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vptr = vptr->next_variable;
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return put_index_data;
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/** handles requests for the $i table, if anything else needs to be done */
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netsnmp_mib_handler *handler,
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netsnmp_handler_registration *reginfo,
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netsnmp_agent_request_info *reqinfo,
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netsnmp_request_info *requests) {
210
netsnmp_request_info *request;
211
netsnmp_table_request_info *table_info;
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netsnmp_variable_list *var;
214
for(request = requests; request; request = request->next) {
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var = request->requestvb;
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if (request->processed != 0)
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/** perform anything here that you need to do before each
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request is processed. */
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/** the following extracts the my_data_context pointer set in
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the loop functions above. You can then use the results to
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help return data for the columns of the $i table in question */
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/** XXX */ = (/** XXX */ *) netsnmp_extract_iterator_context(request);
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if (/** XXX */ == NULL) {
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if (reqinfo->mode == MODE_GET) {
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netsnmp_set_request_error(reqinfo, request, SNMP_NOSUCHINSTANCE);
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/** XXX: no row existed, if you support creation and this is a
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set, start dealing with it here, else continue */
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/** extracts the information about the table from the request */
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table_info = netsnmp_extract_table_info(request);
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/** table_info->colnum contains the column number requested */
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/** table_info->indexes contains a linked list of snmp variable
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bindings for the indexes of the table. Values in the list
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have been set corresponding to the indexes of the
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if (table_info==NULL) {
246
switch(reqinfo->mode) {
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/** the table_iterator helper should change all GETNEXTs
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into GETs for you automatically, so you don't have to
249
worry about the GETNEXT case. Only GETs and SETs need
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to be dealt with here */
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switch(table_info->colnum) {
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@if $c.access =~ /(Read|Create)/@
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snmp_set_var_typed_value(var, $c.type, (u_char *) /** XXX: column data */, /** XXX: column data length */);
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/** We shouldn't get here */
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snmp_log(LOG_ERR, "problem encountered in ${i}_handler: unknown column\n");
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case MODE_SET_RESERVE1:
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/** set handling... */
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snmp_log(LOG_ERR, "problem encountered in ${i}_handler: unsupported mode\n");
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return SNMP_ERR_NOERROR;
added
removed
local/mib2c.iterate.conf
