/** Is the cache valid for a given request? */
int
netsnmp_cache_is_valid(netsnmp_agent_request_info * reqinfo,
const char* name)
{
netsnmp_cache *cache = netsnmp_cache_reqinfo_extract(reqinfo, name);
return (cache && cache->valid);
}
/** @internal Implements the stash_cache handler */
int
netsnmp_stash_cache_helper(netsnmp_mib_handler *handler,
netsnmp_handler_registration *reginfo,
netsnmp_agent_request_info *reqinfo,
netsnmp_request_info *requests)
{
netsnmp_cache *cache;
netsnmp_stash_cache_info *cinfo;
netsnmp_oid_stash_node *cnode;
netsnmp_variable_list *cdata;
netsnmp_request_info *request;
DEBUGMSGTL(("helper:stash_cache", "Got request\n"));
cache = netsnmp_cache_reqinfo_extract( reqinfo, reginfo->handlerName );
if (!cache) {
DEBUGMSGTL(("helper:stash_cache", "No cache structure\n"));
return SNMP_ERR_GENERR;
}
cinfo = (netsnmp_stash_cache_info *) cache->magic;
switch (reqinfo->mode) {
case MODE_GET:
DEBUGMSGTL(("helper:stash_cache", "Processing GET request\n"));
for(request = requests; request; request = request->next) {
cdata = (netsnmp_variable_list*)
netsnmp_oid_stash_get_data(cinfo->cache,
requests->requestvb->name,
requests->requestvb->name_length);
if (cdata && cdata->val.string && cdata->val_len) {
DEBUGMSGTL(("helper:stash_cache", "Found cached GET varbind\n"));
DEBUGMSGOID(("helper:stash_cache", cdata->name, cdata->name_length));
DEBUGMSG(("helper:stash_cache", "\n"));
snmp_set_var_typed_value(request->requestvb, cdata->type,
cdata->val.string, cdata->val_len);
}
}
break;
case MODE_GETNEXT:
DEBUGMSGTL(("helper:stash_cache", "Processing GETNEXT request\n"));
for(request = requests; request; request = request->next) {
cnode =
netsnmp_oid_stash_getnext_node(cinfo->cache,
requests->requestvb->name,
requests->requestvb->name_length);
if (cnode && cnode->thedata) {
cdata = (netsnmp_variable_list*)cnode->thedata;
if (cdata->val.string && cdata->name && cdata->name_length) {
DEBUGMSGTL(("helper:stash_cache", "Found cached GETNEXT varbind\n"));
DEBUGMSGOID(("helper:stash_cache", cdata->name, cdata->name_length));
DEBUGMSG(("helper:stash_cache", "\n"));
snmp_set_var_typed_value(request->requestvb, cdata->type,
cdata->val.string, cdata->val_len);
snmp_set_var_objid(request->requestvb, cdata->name,
cdata->name_length);
}
}
}
break;
default:
cinfo->cache_valid = 0;
return netsnmp_call_next_handler(handler, reginfo, reqinfo,
requests);
}
return SNMP_ERR_NOERROR;
}
netsnmp_cache *
netsnmp_extract_cache_info(netsnmp_agent_request_info * reqinfo)
{
return netsnmp_cache_reqinfo_extract(reqinfo, CACHE_NAME);
}
