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net-snmp/agent/mibgroup/ip-mib/ipv6InterfaceTable/ipv6InterfaceTable_data_acc...

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/*
* Note: this file originally auto-generated by mib2c using
* version : 1.17 $ of : mfd-data-access.m2c,v $
*
* $Id$
*/
/*
* standard Net-SNMP includes
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
/*
* include our parent header
*/
#include "ipv6InterfaceTable.h"
#include "ipv6InterfaceTable_data_access.h"
/** @ingroup interface
* @addtogroup data_access data_access: Routines to access data
*
* These routines are used to locate the data used to satisfy
* requests.
*
* @{
*/
/**********************************************************************
**********************************************************************
***
*** Table ipv6InterfaceTable
***
**********************************************************************
**********************************************************************/
/*
* IP-MIB::ipv6InterfaceTable is subid 30 of ip.
* Its status is Current.
* OID: .1.3.6.1.2.1.4.30, length: 8
*/
/**
* initialization for ipv6InterfaceTable data access
*
* This function is called during startup to allow you to
* allocate any resources you need for the data table.
*
* @param ipv6InterfaceTable_reg
* Pointer to ipv6InterfaceTable_registration
*
* @retval MFD_SUCCESS : success.
* @retval MFD_ERROR : unrecoverable error.
*/
int
ipv6InterfaceTable_init_data(ipv6InterfaceTable_registration *
ipv6InterfaceTable_reg)
{
DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_init_data",
"called\n"));
/*
* TODO:303:o: Initialize ipv6InterfaceTable data.
*/
return MFD_SUCCESS;
} /* ipv6InterfaceTable_init_data */
/**
* container overview
*
*/
/**
* container initialization
*
* @param container_ptr_ptr A pointer to a container pointer. If you
* create a custom container, use this parameter to return it
* to the MFD helper. If set to NULL, the MFD helper will
* allocate a container for you.
*
* This function is called at startup to allow you to customize certain
* aspects of the access method. For the most part, it is for advanced
* users. The default code should suffice for most cases. If no custom
* container is allocated, the MFD code will create one for your.
*
* @remark
* This would also be a good place to do any initialization needed
* for you data source. For example, opening a connection to another
* process that will supply the data, opening a database, etc.
*/
void
ipv6InterfaceTable_container_init(netsnmp_container **container_ptr_ptr)
{
DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_init", "called\n"));
if (NULL == container_ptr_ptr) {
snmp_log(LOG_ERR,
"bad container param to ipv6InterfaceTable_container_init\n");
return;
}
/*
* For advanced users, you can use a custom container. If you
* do not create one, one will be created for you.
*/
*container_ptr_ptr = NULL;
} /* ipv6InterfaceTable_container_init */
/**
* @internal
* determine if we want a ifTable row in our container
*/
void
ipv6InterfaceTable_check_entry_for_updates(const ifTable_rowreq_ctx *
ift_rrc,
netsnmp_interface_entry *entry)
{
netsnmp_container *c = ipv6InterfaceTable_container_get();
ifTable_rowreq_ctx *ip6if_rrc;
int changed = 0;
DEBUGMSGTL(("verbose:ipv6InterfaceTable:check_entry_for_updates",
"called\n"));
/*
* do we have a corresponding row?
*/
ip6if_rrc = CONTAINER_FIND(c, ift_rrc);
if (NULL == ip6if_rrc) {
/*
* no corresponding row. should we have one?
*/
if ((NULL != entry) &&
(entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_IPV6)) {
/*
* yes.
*/
DEBUGMSGTL(("ipv6InterfaceTable:check_entry_for_updates",
"inserted row for index %" NETSNMP_PRIo "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_IPV6))) {
/*
* no
*/
DEBUGMSGTL(("ipv6InterfaceTable:check_entry_for_updates",
"removed row for index %" NETSNMP_PRIo "d\n",
ift_rrc->data.ifentry->index));
CONTAINER_REMOVE(c, ift_rrc);
changed = 1;
} else {
/*
* still applicable. anything changed?
*/
if (/** retransmit */
((entry->
ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_RETRANSMIT)
&& (entry->retransmit_v6 !=
ift_rrc->data.ifentry->retransmit_v6)) ||
/** reasm */
((entry->
ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_REASMMAX)
&& (entry->reasm_max_v6 !=
ift_rrc->data.ifentry->reasm_max_v6)) ||
/** reachable time */
((entry->
ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_REACHABLE)
&& (entry->reachable_time !=
ift_rrc->data.ifentry->reachable_time)) ||
/** if id */
((entry->ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_IFID)
&&
((entry->v6_if_id_len !=
ift_rrc->data.ifentry->v6_if_id_len)
|| (0 !=
memcmp(entry->v6_if_id,
ift_rrc->data.ifentry->v6_if_id,
entry->v6_if_id_len)))) ||
/** forwarding */
((entry->
ns_flags & NETSNMP_INTERFACE_FLAGS_HAS_V6_FORWARDING)
&& (entry->forwarding_v6 !=
ift_rrc->data.ifentry->forwarding_v6))) {
DEBUGMSGTL(("ipv6InterfaceTable:check_entry_for_updates",
"row changed for index %" NETSNMP_PRIo "d\n",
ift_rrc->data.ifentry->index));
changed = 1;
}
}
}
/*
* if something changed, update table last changed
*/
if (changed)
ipv6InterfaceTable_lastChange_set(netsnmp_get_agent_uptime());
}
/**
* container shutdown
*
* @param container_ptr A pointer to the container.
*
* This function is called at shutdown to allow you to customize certain
* aspects of the access method. For the most part, it is for advanced
* users. The default code should suffice for most cases.
*
* This function is called before ipv6InterfaceTable_container_free().
*
* @remark
* This would also be a good place to do any cleanup needed
* for you data source. For example, closing a connection to another
* process that supplied the data, closing a database, etc.
*/
void
ipv6InterfaceTable_container_shutdown(netsnmp_container *container_ptr)
{
DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_shutdown", "called\n"));
if (NULL == container_ptr) {
snmp_log(LOG_ERR,
"bad params to ipv6InterfaceTable_container_shutdown\n");
return;
}
} /* ipv6InterfaceTable_container_shutdown */
/**
* load initial data
*
* TODO:350:M: Implement ipv6InterfaceTable data load
*
* @param container container to which items should be inserted
*
* @retval MFD_SUCCESS : success.
* @retval MFD_RESOURCE_UNAVAILABLE : Can't access data source
* @retval MFD_ERROR : other error.
*
* This function is called to load the index(es) (and data, optionally)
* for the every row in the data set.
*
* @remark
* While loading the data, the only important thing is the indexes.
* If access to your data is cheap/fast (e.g. you have a pointer to a
* structure in memory), it would make sense to update the data here.
* If, however, the accessing the data invovles more work (e.g. parsing
* some other existing data, or peforming calculations to derive the data),
* then you can limit yourself to setting the indexes and saving any
* information you will need later. Then use the saved information in
* ipv6InterfaceTable_row_prep() for populating data.
*
* @note
* If you need consistency between rows (like you want statistics
* for each row to be from the same time frame), you should set all
* data here.
*
*/
int
ipv6InterfaceTable_container_load(netsnmp_container *container)
{
ipv6InterfaceTable_rowreq_ctx *rowreq_ctx;
size_t count = 0;
/*
* temporary storage for index values
*/
/*
* ipv6InterfaceIfIndex(1)/InterfaceIndex/ASN_INTEGER/long(long)//l/a/w/e/R/d/H
*/
long ipv6InterfaceIfIndex;
DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_load", "called\n"));
/*
* TODO:351:M: |-> Load/update data in the ipv6InterfaceTable container.
* loop over your ipv6InterfaceTable data, allocate a rowreq context,
* set the index(es) [and data, optionally] and insert into
* the container.
*/
while (1) {
/*
* check for end of data; bail out if there is no more data
*/
if (1)
break;
/*
* TODO:352:M: | |-> set indexes in new ipv6InterfaceTable rowreq context.
* data context will be set from the param (unless NULL,
* in which case a new data context will be allocated)
*/
rowreq_ctx = ipv6InterfaceTable_allocate_rowreq_ctx(NULL);
if (NULL == rowreq_ctx) {
snmp_log(LOG_ERR, "memory allocation failed\n");
return MFD_RESOURCE_UNAVAILABLE;
}
if (MFD_SUCCESS !=
ipv6InterfaceTable_indexes_set(rowreq_ctx,
ipv6InterfaceIfIndex)) {
snmp_log(LOG_ERR,
"error setting index while loading "
"ipv6InterfaceTable data.\n");
ipv6InterfaceTable_release_rowreq_ctx(rowreq_ctx);
continue;
}
/*
* TODO:352:r: | |-> populate ipv6InterfaceTable data context.
* Populate data context here. (optionally, delay until row prep)
*/
/*
* non-TRANSIENT data: no need to copy. set pointer to data
*/
/*
* insert into table container
*/
CONTAINER_INSERT(container, rowreq_ctx);
++count;
}
DEBUGMSGT(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_load", "inserted %d records\n", (int)count));
return MFD_SUCCESS;
} /* ipv6InterfaceTable_container_load */
/**
* container clean up
*
* @param container container with all current items
*
* This optional callback is called prior to all
* item's being removed from the container. If you
* need to do any processing before that, do it here.
*
* @note
* The MFD helper will take care of releasing all the row contexts.
*
*/
void
ipv6InterfaceTable_container_free(netsnmp_container *container)
{
DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_container_free", "called\n"));
/*
* TODO:380:M: Free ipv6InterfaceTable container data.
*/
} /* ipv6InterfaceTable_container_free */
/**
* prepare row for processing.
*
* When the agent has located the row for a request, this function is
* called to prepare the row for processing. If you fully populated
* the data context during the index setup phase, you may not need to
* do anything.
*
* @param rowreq_ctx pointer to a context.
*
* @retval MFD_SUCCESS : success.
* @retval MFD_ERROR : other error.
*/
int
ipv6InterfaceTable_row_prep(ipv6InterfaceTable_rowreq_ctx * rowreq_ctx)
{
DEBUGMSGTL(("verbose:ipv6InterfaceTable:ipv6InterfaceTable_row_prep",
"called\n"));
netsnmp_assert(NULL != rowreq_ctx);
/*
* TODO:390:o: Prepare row for request.
* If populating row data was delayed, this is the place to
* fill in the row for this request.
*/
return MFD_SUCCESS;
} /* ipv6InterfaceTable_row_prep */
/** @} */
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