diff options
Diffstat (limited to 'local/mib2c.iterate.conf')
| -rw-r--r-- | local/mib2c.iterate.conf | 668 |
1 files changed, 668 insertions, 0 deletions
diff --git a/local/mib2c.iterate.conf b/local/mib2c.iterate.conf new file mode 100644 index 0000000..774ae22 --- /dev/null +++ b/local/mib2c.iterate.conf @@ -0,0 +1,668 @@ +## -*- c -*- +###################################################################### +## Do the .h file +###################################################################### +@open ${name}.h@ +/* + * Note: this file originally auto-generated by mib2c using + * $Id: mib2c.iterate.conf 17821 2009-11-11 09:00:00Z 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; +Netsnmp_First_Data_Point ${i}_get_first_data_point; +Netsnmp_Next_Data_Point ${i}_get_next_data_point; +@if "$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.iterate.conf 17821 2009-11-11 09:00:00Z 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_iterator_info *iinfo; + netsnmp_table_registration_info *table_info; + + 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_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; + + iinfo = SNMP_MALLOC_TYPEDEF( netsnmp_iterator_info ); + iinfo->get_first_data_point = ${i}_get_first_data_point; + iinfo->get_next_data_point = ${i}_get_next_data_point; + iinfo->table_reginfo = table_info; + + netsnmp_register_table_iterator( reg, iinfo ); +@if "$cache" ne "" @ + netsnmp_inject_handler_before( reg, + netsnmp_get_cache_handler($i.uc_TIMEOUT, + ${i}_load, ${i}_free, + ${i}_oid, ${i}_oid_len), + TABLE_ITERATOR_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@ + + /* Illustrate using a simple linked list */ + int valid; + struct ${i}_entry *next; +}; + +struct ${i}_entry *${i}_head; + +/* create a new row in the (unsorted) table */ +struct ${i}_entry * +${i}_createEntry( + @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; + + @foreach $idx index@ + @if $idx.needlength@ + memcpy(entry->$idx, $idx, ${idx}_len); + entry->${idx}_len = ${idx}_len; + @else@ + entry->$idx = $idx; + @end@ + @end@ + entry->next = ${i}_head; + ${i}_head = entry; + return entry; +} + +/* remove a row from the table */ +void +${i}_removeEntry( struct ${i}_entry *entry ) { + struct ${i}_entry *ptr, *prev; + + if (!entry) + return; /* Nothing to remove */ + + for ( ptr = ${i}_head, prev = NULL; + ptr != NULL; + prev = ptr, ptr = ptr->next ) { + if ( ptr == entry ) + break; + } + if ( !ptr ) + return; /* Can't find it */ + + if ( prev == NULL ) + ${i}_head = ptr->next; + else + prev->next = ptr->next; + + SNMP_FREE( entry ); /* XXX - release any other internal resources */ +} + +@if "$cache" ne "" @ +/* Example cache handling - set up linked list from a suitable file */ +int +${i}_load( netsnmp_cache *cache, void *vmagic ) { + FILE *fp; + struct ${i}_entry *this; + char buf[STRMAX]; + + fp = fopen( "/data/for/${i}", "r" ); + if ( !fp ) { + return -1; + } + while ( fgets( buf, STRMAX, fp )) { + this = SNMP_MALLOC_TYPEDEF( struct ${i}_entry ); + /* Unpick 'buf' and populate 'this' */ + + this->next = ${i}_head; + ${i}_head = this; /* Iterate helper is fine with unordered lists! */ + } + fclose(fp); + return 0; /* OK */ +} + +void +${i}_free( netsnmp_cache *cache, void *vmagic ) { + struct ${i}_entry *this, *that; + + for ( this = ${i}_head; this; this=that ) { + that = this->next; + SNMP_FREE( this ); /* XXX - release any other internal resources */ + } + ${i}_head = NULL; +} +@end@ + +/* Example iterator hook routines - using 'get_next' to do most of the work */ +netsnmp_variable_list * +${i}_get_first_data_point(void **my_loop_context, + void **my_data_context, + netsnmp_variable_list *put_index_data, + netsnmp_iterator_info *mydata) +{ + *my_loop_context = ${i}_head; + return ${i}_get_next_data_point(my_loop_context, my_data_context, + put_index_data, mydata ); +} + +netsnmp_variable_list * +${i}_get_next_data_point(void **my_loop_context, + void **my_data_context, + netsnmp_variable_list *put_index_data, + netsnmp_iterator_info *mydata) +{ + struct ${i}_entry *entry = (struct ${i}_entry *)*my_loop_context; + netsnmp_variable_list *idx = put_index_data; + + if ( entry ) { + @foreach $idx index@ + @if $idx.needlength@ + snmp_set_var_value( idx, entry->${idx}, sizeof(entry->${idx}) ); + @else@ + snmp_set_var_typed_integer( idx, $idx.type, entry->${idx} ); + @end@ + idx = idx->next_variable; + @end@ + *my_data_context = (void *)entry; + *my_loop_context = (void *)entry->next; + return put_index_data; + } else { + return NULL; + } +} + + +/** 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; + struct ${i}_entry *table_entry; + + 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_extract_iterator_context(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_extract_iterator_context(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_entry = (struct ${i}_entry *) + netsnmp_extract_iterator_context(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( + @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_iterator_context( 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( + @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_iterator_context( 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_extract_iterator_context(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_extract_iterator_context(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_extract_iterator_context(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_extract_iterator_context(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_extract_iterator_context(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: + 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@ |