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//proc/self/root/usr/share/snmp/mib2c.table_data.conf
## -*- c -*- ###################################################################### ## Do the .h file ###################################################################### @open ${name}.h@ /* * Note: this file originally auto-generated by mib2c using * $Id: mib2c.table_data.conf 16004 2007-03-27 09:20:28Z dts12 $ */ #ifndef $name.uc_H #define $name.uc_H /* function declarations */ void init_$name(void); @foreach $i table@ void initialize_table_$i(void); Netsnmp_Node_Handler ${i}_handler; @if "$cache" ne "" @ NetsnmpCacheLoad ${i}_load; NetsnmpCacheFree ${i}_free; #define $i.uc_TIMEOUT 60 @end@ @end@ @foreach $i table@ /* column number definitions for table $i */ @foreach $c column@ #define COLUMN_$c.uc $c.subid @end@ @end@ #endif /* $name.uc_H */ ###################################################################### ## Do the .c file ###################################################################### @open ${name}.c@ /* * Note: this file originally auto-generated by mib2c using * $Id: mib2c.table_data.conf 16004 2007-03-27 09:20:28Z 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" /** 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@ } @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@ /** Initialize the $i table by defining its contents and how it's structured */ void initialize_table_$i(void) { static oid ${i}_oid[] = {$i.commaoid}; size_t ${i}_oid_len = OID_LENGTH(${i}_oid); netsnmp_handler_registration *reg; netsnmp_tdata *table_data; netsnmp_table_registration_info *table_info; @if "$cache" ne "" @ netsnmp_cache *cache; @end@ reg = netsnmp_create_handler_registration( "$i", ${i}_handler, ${i}_oid, ${i}_oid_len, @if $i.settable@ HANDLER_CAN_RWRITE @else@ HANDLER_CAN_RONLY @end@ ); table_data = netsnmp_tdata_create_table( "$i", 0 ); 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_$last_column.uc; netsnmp_tdata_register( reg, table_data, table_info ); @if "$cache" ne "" @ cache = netsnmp_cache_create($i.uc_TIMEOUT, ${i}_load, ${i}_free, ${i}_oid, ${i}_oid_len), cache->magic = (void *)table_data; netsnmp_inject_handler_before( reg, netsnmp_cache_handler_GET(cache), TABLE_DATA_NAME)) @end@ /* Initialise the contents of the table here */ } /* 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 column@ @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 */ netsnmp_tdata_row * ${i}_createEntry(netsnmp_tdata *table_data @foreach $idx index@ @if $idx.needlength@ , $idx.decl* $idx , size_t ${idx}_len @else@ , $idx.decl $idx @end@ @end@ ) { struct ${i}_entry *entry; netsnmp_tdata_row *row; entry = SNMP_MALLOC_TYPEDEF(struct ${i}_entry); if (!entry) return NULL; row = netsnmp_tdata_create_row(); if (!row) { SNMP_FREE(entry); return NULL; } row->data = entry; @foreach $idx index@ @if $idx.needlength@ memcpy(entry->$idx, $idx, ${idx}_len); entry->${idx}_len = ${idx}_len; netsnmp_tdata_row_add_index( row, $idx.type, entry->$idx, ${idx}_len); @else@ entry->$idx = $idx; netsnmp_tdata_row_add_index( row, $idx.type, &(entry->$idx), sizeof(entry->$idx)); @end@ @end@ netsnmp_tdata_add_row( table_data, row ); return row; } /* remove a row from the table */ void ${i}_removeEntry(netsnmp_tdata *table_data, netsnmp_tdata_row *row) { struct ${i}_entry *entry; if (!row) return; /* Nothing to remove */ entry = (struct ${i}_entry *) netsnmp_tdata_remove_and_delete_row( table_data, row ); if (entry) SNMP_FREE( entry ); /* XXX - release any other internal resources */ } @if "$cache" ne "" @ /* Example cache handling - set up table_data list from a suitable file */ int ${i}_load( netsnmp_cache *cache, void *vmagic ) { netsnmp_tdata *table = (netsnmp_tdata *)vmagic; netsnmp_tdata_row *row; FILE *fp; char buf[STRMAX]; @if $idx.needlength@ $idx.decl* $idx; size_t ${idx}_len; @else@ $idx.decl $idx; @end@ fp = fopen( "/data/for/${i}", "r" ); while ( fgets( buf, STRMAX, fp )) { /* Unpick 'buf' to extract the index values... */ this = ${i}_createEntry(table @foreach $idx index@ @if $idx.needlength@ , $idx , ${idx}_len @else@ , $idx @end@ @end@ ); /* ... and then populate 'this' with the column values */ } fclose(fp); } int ${i}_free( netsnmp_cache *cache, void *vmagic ) { netsnmp_tdata *table = (netsnmp_tdata *)vmagic; netsnmp_tdata_row *this; while ((this = netsnmp_tdata_get_first_row(table))) { netsnmp_tdata_remove_and_delete_row(table, this); } } @end@ /** handles requests for the $i table */ 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; netsnmp_tdata *table_data; netsnmp_tdata_row *table_row; struct ${i}_entry *table_entry; int ret; switch (reqinfo->mode) { /* * Read-support (also covers GetNext requests) */ case MODE_GET: for (request=requests; request; request=request->next) { table_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); table_info = netsnmp_extract_table_info( request); 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, $c.type, (u_char*)table_entry->$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_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); table_info = netsnmp_extract_table_info( request); 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 possiblc '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_row = netsnmp_tdata_extract_row( request); table_data = netsnmp_tdata_extract_table(request); table_info = netsnmp_extract_table_info( request); 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_row = ${i}_createEntry(table_data @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_row) { netsnmp_insert_tdata_row( request, table_row ); } else { 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_row ) { table_row = ${i}_createEntry(table_data @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_row) { netsnmp_insert_tdata_row( request, table_row ); } else { 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_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); table_row = netsnmp_tdata_extract_row( request); table_data = netsnmp_tdata_extract_table(request); table_info = netsnmp_extract_table_info( request); 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_data, table_row ); } } @end@ @end@ @else@ @foreach $c column@ @if $c.creatable@ case COLUMN_$c.uc: @end@ @end@ if ( table_entry && !table_entry->valid ) { ${i}_removeEntry(table_data, table_row ); } break; @end@ } } @end@ break; case MODE_SET_ACTION: for (request=requests; request; request=request->next) { table_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); table_info = netsnmp_extract_table_info( request); 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_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); table_info = netsnmp_extract_table_info( request); 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_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); table_row = netsnmp_tdata_extract_row( request); table_data = netsnmp_tdata_extract_table(request); table_info = netsnmp_extract_table_info( request); 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_data, table_row ); } } @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_data, table_row ); } 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_entry = (struct ${i}_entry *) netsnmp_tdata_extract_entry(request); @if $i.rowstatus@ table_row = netsnmp_tdata_extract_row( request); table_data = netsnmp_tdata_extract_table(request); @end@ table_info = netsnmp_extract_table_info( request); 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_data, table_row ); } @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; } @end@