/**
* Initializes the ipv4InterfaceTable module
*/
void
init_ipv4InterfaceTable(void)
{
DEBUGMSGTL(("verbose:ipv4InterfaceTable:init_ipv4InterfaceTable",
"called\n"));
/*
* TODO:300:o: Perform ipv4InterfaceTable one-time module initialization.
*/
/*
* we depend on the ifTable, so we put our init in with it
* to guarantee order of execution.
*/
init_ifTable();
/*
* last changed should be 0 at startup
*/
ipv4InterfaceTable_lastChange_set(0);
} /* init_ipv4InterfaceTable */
/**
* @internal
* determine if we want a ifTable row in our container
*/
void
ipv4InterfaceTable_check_entry_for_updates(const ifTable_rowreq_ctx *
ift_rrc,
netsnmp_interface_entry *entry)
{
netsnmp_container *c = ipv4InterfaceTable_container_get();
ifTable_rowreq_ctx *ip4if_rrc;
int changed = 0;
DEBUGMSGTL(("verbose:ipv4InterfaceTable:check_entry_for_updates",
"called\n"));
/*
* do we have a corresponding row?
*/
ip4if_rrc = CONTAINER_FIND(c, ift_rrc);
if (NULL == ip4if_rrc) {
/*
* no corresponding row. should we have one?
*/
if ((NULL != entry) &&
(entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_IPV4)) {
/*
* yes.
*/
DEBUGMSGTL(("ipv4InterfaceTable:check_entry_for_updates",
"inserted row for %d\n", entry->index));
CONTAINER_INSERT(c, ift_rrc);
changed = 1;
}
} else {
/*
* found corresponding row. is it still applicable?
*/
if ((NULL == entry) ||
(0 == (entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_IPV4))) {
/*
* no
*/
DEBUGMSGTL(("ipv4InterfaceTable:check_entry_for_updates",
"removed row for %d\n",
ift_rrc->data.ifentry->index));
CONTAINER_REMOVE(c, ift_rrc);
changed = 1;
} else {
/*
* still applicable. anything changed?
*/
if ((entry->retransmit_v4 !=
ift_rrc->data.ifentry->retransmit_v4) ||
(entry->reasm_max_v4 != ift_rrc->data.ifentry->reasm_max_v4)) {
DEBUGMSGTL(("ipv4InterfaceTable:check_entry_for_updates",
"row changed for %d\n",
ift_rrc->data.ifentry->index));
changed = 1;
}
}
}
/*
* if something changed, update table last changed
*/
if (changed)
ipv4InterfaceTable_lastChange_set(netsnmp_get_agent_uptime());
}
