blob: c75c934abcf9977107603e316fbbc1fa359e3052 [file] [log] [blame]
/*
* DisMan Expression MIB:
* Implementation of the object table configuration handling.
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include "utilities/iquery.h"
#include "disman/expr/expObject.h"
#include "disman/expr/expObjectConf.h"
/* Initializes the expObjectConf module */
void
init_expObjectConf(void)
{
init_expObject_table_data();
/*
* Register config handler for persistent storage
* of dynamically configured entries.
*/
snmpd_register_config_handler("_expOTable", parse_expOTable, NULL, NULL);
/*
* Register to save (non-fixed) entries when the agent shuts down
*/
snmp_register_callback(SNMP_CALLBACK_LIBRARY, SNMP_CALLBACK_STORE_DATA,
store_expOTable, NULL);
}
/* ================================================
*
* Handlers for loading/storing persistent expression entries
*
* ================================================ */
char *
_parse_expOCols( char *line, struct expObject *entry )
{
void *vp;
size_t tmp;
vp = entry->expObjectID;
entry->expObjectID_len = MAX_OID_LEN;
line = read_config_read_data(ASN_OBJECT_ID, line, &vp,
&entry->expObjectID_len);
line = read_config_read_data(ASN_UNSIGNED, line, &tmp, NULL);
entry->expObjectSampleType = tmp;
vp = entry->expObjDeltaD;
entry->expObjDeltaD_len = MAX_OID_LEN;
line = read_config_read_data(ASN_OBJECT_ID, line, &vp,
&entry->expObjDeltaD_len);
line = read_config_read_data(ASN_UNSIGNED, line, &tmp, NULL);
entry->expObjDiscontinuityType = tmp;
vp = entry->expObjCond;
entry->expObjCond_len = MAX_OID_LEN;
line = read_config_read_data(ASN_OBJECT_ID, line, &vp,
&entry->expObjCond_len);
line = read_config_read_data(ASN_UNSIGNED, line, &tmp, NULL);
entry->flags |= tmp;
return line;
}
void
parse_expOTable(const char *token, char *line)
{
char owner[EXP_STR1_LEN+1];
char oname[EXP_STR1_LEN+1];
long idx;
void *vp;
size_t len;
struct expObject *entry;
DEBUGMSGTL(("disman:expr:conf", "Parsing mteObjectTable config... "));
/*
* Read in the index information for this entry
* and create a (non-fixed) data structure for it.
*/
memset( owner, 0, sizeof(owner));
memset( oname, 0, sizeof(oname));
len = EXP_STR1_LEN; vp = owner;
line = read_config_read_data(ASN_OCTET_STR, line, &vp, &len);
len = EXP_STR1_LEN; vp = oname;
line = read_config_read_data(ASN_OCTET_STR, line, &vp, &len);
line = read_config_read_data(ASN_UNSIGNED, line, &idx, NULL);
entry = expObject_createEntry( owner, oname, idx, 0 );
DEBUGMSG(("disman:expr:conf", "(%s, %s, %ld) ", owner, oname, idx));
/*
* Read in the accessible column values.
*/
line = _parse_expOCols( line, entry );
/*
* XXX - Will need to read in the 'iquery' access information
*/
entry->flags |= EXP_OBJ_FLAG_VALID;
DEBUGMSG(("disman:expr:conf", "\n"));
}
int
store_expOTable(int majorID, int minorID, void *serverarg, void *clientarg)
{
char line[SNMP_MAXBUF];
char *cptr, *cp;
void *vp;
size_t tint;
netsnmp_tdata_row *row;
struct expObject *entry;
DEBUGMSGTL(("disman:expr:conf", "Storing expObjectTable config:\n"));
for (row = netsnmp_tdata_row_first( expObject_table_data );
row;
row = netsnmp_tdata_row_next( expObject_table_data, row )) {
/*
* Skip entries that were set up via static config directives
*/
entry = (struct expObject *)netsnmp_tdata_row_entry( row );
if ( entry->flags & EXP_OBJ_FLAG_FIXED )
continue;
DEBUGMSGTL(("disman:expr:conf", " Storing (%s %s %lu)\n",
entry->expOwner, entry->expName, entry->expObjectIndex));
/*
* Save the basic expObject entry, indexes...
*/
memset(line, 0, sizeof(line));
strcat(line, "_expOTable ");
cptr = line + strlen(line);
cp = entry->expOwner; tint = strlen( cp );
cptr = read_config_store_data( ASN_OCTET_STR, cptr, &cp, &tint );
cp = entry->expName; tint = strlen( cp );
cptr = read_config_store_data( ASN_OCTET_STR, cptr, &cp, &tint );
tint = entry->expObjectIndex;
cptr = read_config_store_data( ASN_UNSIGNED, cptr, &tint, NULL );
/*
* ... and column values.
*/
vp = entry->expObjectID;
tint = entry->expObjectID_len;
cptr = read_config_store_data( ASN_OBJECT_ID, cptr, &vp, &tint );
tint = entry->expObjectSampleType;
cptr = read_config_store_data( ASN_UNSIGNED, cptr, &tint, NULL );
vp = entry->expObjDeltaD;
tint = entry->expObjDeltaD_len;
cptr = read_config_store_data( ASN_OBJECT_ID, cptr, &vp, &tint );
tint = entry->expObjDiscontinuityType;
cptr = read_config_store_data( ASN_UNSIGNED, cptr, &tint, NULL );
vp = entry->expObjCond;
tint = entry->expObjCond_len;
cptr = read_config_store_data( ASN_OBJECT_ID, cptr, &vp, &tint );
tint = entry->flags;
cptr = read_config_store_data( ASN_UNSIGNED, cptr, &tint, NULL );
snmpd_store_config(line);
}
DEBUGMSGTL(("disman:expr:conf", " done.\n"));
return SNMPERR_SUCCESS;
}