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/*
* defaultrouter MIB architecture support
*
* $Id:$
*/
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
#include <net-snmp/data_access/defaultrouter.h>
#include "ip-mib/ipDefaultRouterTable/ipDefaultRouterTable.h"
/**---------------------------------------------------------------------*/
/*
* local static prototypes
*/
static int _access_defaultrouter_entry_compare_addr(const void *lhs,
const void *rhs);
static void _access_defaultrouter_entry_release(netsnmp_defaultrouter_entry * entry,
void *unused);
/**---------------------------------------------------------------------*/
/*
* external per-architecture functions prototypes
*
* These shouldn't be called by the general public, so they aren't in
* the header file.
*/
extern int
netsnmp_arch_defaultrouter_entry_init(netsnmp_defaultrouter_entry *entry);
extern int
netsnmp_arch_defaultrouter_container_load(netsnmp_container* container,
u_int load_flags);
/**---------------------------------------------------------------------*/
/*
* container functions
*/
/**
*/
netsnmp_container *
netsnmp_access_defaultrouter_container_init(u_int flags)
{
netsnmp_container *container1;
DEBUGMSGTL(("access:defaultrouter:container", "init\n"));
/*
* create the containers. one indexed by ifIndex, the other
* indexed by ifName.
*/
container1 = netsnmp_container_find("access_defaultrouter:table_container");
if (NULL == container1) {
snmp_log(LOG_ERR, "defaultrouter primary container is not found\n");
return NULL;
}
container1->container_name = strdup("dr_index");
if (flags & NETSNMP_ACCESS_DEFAULTROUTER_INIT_ADDL_IDX_BY_ADDR) {
netsnmp_container *container2 =
netsnmp_container_find("defaultrouter_addr:access_defaultrouter:table_container");
if (NULL == container2) {
snmp_log(LOG_ERR, "defaultrouter secondary container not found\n");
CONTAINER_FREE(container1);
return NULL;
}
container2->compare = _access_defaultrouter_entry_compare_addr;
container2->container_name = strdup("dr_addr");
netsnmp_container_add_index(container1, container2);
}
return container1;
}
/**
* @retval NULL error
* @retval !NULL pointer to container
*/
netsnmp_container*
netsnmp_access_defaultrouter_container_load(netsnmp_container* container,
u_int load_flags)
{
int rc;
u_int container_flags = 0;
DEBUGMSGTL(("access:defaultrouter:container", "load\n"));
if (NULL == container) {
if (load_flags & NETSNMP_ACCESS_DEFAULTROUTER_LOAD_ADDL_IDX_BY_ADDR) {
container_flags |=
NETSNMP_ACCESS_DEFAULTROUTER_INIT_ADDL_IDX_BY_ADDR;
}
container =
netsnmp_access_defaultrouter_container_init(container_flags);
}
if (NULL == container) {
snmp_log(LOG_ERR, "no container specified/found for access_defaultrouter\n");
return NULL;
}
rc = netsnmp_arch_defaultrouter_container_load(container, load_flags);
if (0 != rc) {
netsnmp_access_defaultrouter_container_free(container,
NETSNMP_ACCESS_DEFAULTROUTER_FREE_NOFLAGS);
container = NULL;
}
return container;
}
void
netsnmp_access_defaultrouter_container_free(netsnmp_container *container,
u_int free_flags)
{
DEBUGMSGTL(("access:defaultrouter:container", "free\n"));
if (NULL == container) {
snmp_log(LOG_ERR,
"invalid container for netsnmp_access_defaultrouter_free\n");
return;
}
if(! (free_flags & NETSNMP_ACCESS_DEFAULTROUTER_FREE_DONT_CLEAR)) {
/*
* free all items.
*/
CONTAINER_CLEAR(container,
(netsnmp_container_obj_func*)_access_defaultrouter_entry_release,
NULL);
}
if(! (free_flags & NETSNMP_ACCESS_DEFAULTROUTER_FREE_KEEP_CONTAINER))
CONTAINER_FREE(container);
}
/**---------------------------------------------------------------------*/
/*
* defaultrouter_entry functions
*/
/**
*/
/**
*/
netsnmp_defaultrouter_entry *
netsnmp_access_defaultrouter_entry_create(void)
{
int rc = 0;
netsnmp_defaultrouter_entry *entry =
SNMP_MALLOC_TYPEDEF(netsnmp_defaultrouter_entry);
DEBUGMSGTL(("access:defaultrouter:entry", "create\n"));
if(NULL == entry)
return NULL;
entry->oid_index.len = 1;
entry->oid_index.oids = &entry->ns_dr_index;
/*
* set up defaults
*/
entry->dr_lifetime = IPDEFAULTROUTERLIFETIME_MAX;
entry->dr_preference = IPDEFAULTROUTERPREFERENCE_MEDIUM;
rc = netsnmp_arch_defaultrouter_entry_init(entry);
if (SNMP_ERR_NOERROR != rc) {
DEBUGMSGT(("access:defaultrouter:create","error %d in arch init\n", rc));
netsnmp_access_defaultrouter_entry_free(entry);
entry = NULL;
}
return entry;
}
void
netsnmp_access_defaultrouter_entry_free(netsnmp_defaultrouter_entry * entry)
{
if (NULL == entry)
return;
free(entry);
}
/**
* update an old defaultrouter_entry from a new one
*
* @note: only mib related items are compared. Internal objects
* such as oid_index, ns_dr_index and flags are not compared.
*
* @retval -1 : error
* @retval >=0 : number of fields updated
*/
int
netsnmp_access_defaultrouter_entry_update(netsnmp_defaultrouter_entry *lhs,
netsnmp_defaultrouter_entry *rhs)
{
int changed = 0;
if (lhs->dr_addresstype != rhs->dr_addresstype) {
++changed;
lhs->dr_addresstype = rhs->dr_addresstype;
}
if (lhs->dr_address_len != rhs->dr_address_len) {
changed += 2;
lhs->dr_address_len = rhs->dr_address_len;
memcpy(lhs->dr_address, rhs->dr_address, rhs->dr_address_len);
}
else if (memcmp(lhs->dr_address, rhs->dr_address, rhs->dr_address_len) != 0) {
++changed;
memcpy(lhs->dr_address, rhs->dr_address, rhs->dr_address_len);
}
if (lhs->dr_if_index != rhs->dr_if_index) {
++changed;
lhs->dr_if_index = rhs->dr_if_index;
}
if (lhs->dr_lifetime != rhs->dr_lifetime) {
++changed;
lhs->dr_lifetime = rhs->dr_lifetime;
}
if (lhs->dr_preference != rhs->dr_preference) {
++changed;
lhs->dr_preference = rhs->dr_preference;
}
return changed;
}
/**
* copy an defaultrouter_entry
*
* @retval -1 : error
* @retval 0 : no error
*/
int
netsnmp_access_defaultrouter_entry_copy(netsnmp_defaultrouter_entry *lhs,
netsnmp_defaultrouter_entry *rhs)
{
lhs->dr_addresstype = rhs->dr_addresstype;
lhs->dr_address_len = rhs->dr_address_len;
memcpy(lhs->dr_address, rhs->dr_address, rhs->dr_address_len);
lhs->dr_if_index = rhs->dr_if_index;
lhs->dr_lifetime = rhs->dr_lifetime;
lhs->dr_preference = rhs->dr_preference;
return 0;
}
/**---------------------------------------------------------------------*/
/*
* Utility routines
*/
/**
*/
void
_access_defaultrouter_entry_release(netsnmp_defaultrouter_entry * entry, void *context)
{
netsnmp_access_defaultrouter_entry_free(entry);
}
static int _access_defaultrouter_entry_compare_addr(const void *lhs,
const void *rhs)
{
const netsnmp_defaultrouter_entry *lh = (const netsnmp_defaultrouter_entry *)lhs;
const netsnmp_defaultrouter_entry *rh = (const netsnmp_defaultrouter_entry *)rhs;
netsnmp_assert(NULL != lhs);
netsnmp_assert(NULL != rhs);
/*
* compare address length
*/
if (lh->dr_address_len < rh->dr_address_len)
return -1;
else if (lh->dr_address_len > rh->dr_address_len)
return 1;
/*
* length equal, compare address
*/
return memcmp(lh->dr_address, rh->dr_address, lh->dr_address_len);
}
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