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/*
* Licensed Materials - Property of IBM
*
* trousers - An open source TCG Software Stack
*
* (C) Copyright International Business Machines Corp. 2004
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "trousers/tss.h"
#include "trousers_types.h"
#include "tsplog.h"
#include "hosttable.h"
#include "obj.h"
struct host_table *ht = NULL;
TSS_RESULT
host_table_init()
{
ht = calloc(1, sizeof(struct host_table));
if (ht == NULL) {
LogError("malloc of %zd bytes failed.", sizeof(struct host_table));
return TSPERR(TSS_E_OUTOFMEMORY);
}
MUTEX_INIT(ht->lock);
return TSS_SUCCESS;
}
#ifdef SOLARIS
#pragma init(_init)
void _init(void)
#else
void __attribute__ ((constructor)) my_init(void)
#endif
{
host_table_init();
__tspi_obj_list_init();
}
void
host_table_final()
{
struct host_table_entry *hte, *next = NULL;
MUTEX_LOCK(ht->lock);
for (hte = ht->entries; hte; hte = next) {
if (hte)
next = hte->next;
if (hte->hostname)
free(hte->hostname);
if (hte->comm.buf)
free(hte->comm.buf);
free(hte);
}
MUTEX_UNLOCK(ht->lock);
free(ht);
ht = NULL;
}
#ifdef SOLARIS
#pragma fini(_fini)
void _fini(void)
#else
void __attribute__ ((destructor)) my_fini(void)
#endif
{
host_table_final();
}
TSS_RESULT
__tspi_add_table_entry(TSS_HCONTEXT tspContext, BYTE *host, int type, struct host_table_entry **ret)
{
struct host_table_entry *entry, *tmp;
entry = calloc(1, sizeof(struct host_table_entry));
if (entry == NULL) {
LogError("malloc of %zd bytes failed.", sizeof(struct host_table_entry));
return TSPERR(TSS_E_OUTOFMEMORY);
}
entry->tspContext = tspContext;
entry->hostname = host;
entry->type = type;
entry->comm.buf_size = TCSD_INIT_TXBUF_SIZE;
entry->comm.buf = calloc(1, entry->comm.buf_size);
if (entry->comm.buf == NULL) {
LogError("malloc of %u bytes failed.", entry->comm.buf_size);
free(entry);
return TSPERR(TSS_E_OUTOFMEMORY);
}
MUTEX_INIT(entry->lock);
MUTEX_LOCK(ht->lock);
for (tmp = ht->entries; tmp; tmp = tmp->next) {
if (tmp->tspContext == tspContext) {
LogError("Tspi_Context_Connect attempted on an already connected context!");
MUTEX_UNLOCK(ht->lock);
free(entry->hostname);
free(entry->comm.buf);
free(entry);
return TSPERR(TSS_E_CONNECTION_FAILED);
}
}
if( ht->entries == NULL ) {
ht->entries = entry;
} else {
for (tmp = ht->entries; tmp->next; tmp = tmp->next)
;
tmp->next = entry;
}
MUTEX_UNLOCK(ht->lock);
*ret = entry;
return TSS_SUCCESS;
}
void
remove_table_entry(TSS_HCONTEXT tspContext)
{
struct host_table_entry *hte, *prev = NULL;
MUTEX_LOCK(ht->lock);
for (hte = ht->entries; hte; prev = hte, hte = hte->next) {
if (hte->tspContext == tspContext) {
if (prev != NULL)
prev->next = hte->next;
else
ht->entries = hte->next;
if (hte->hostname)
free(hte->hostname);
free(hte->comm.buf);
free(hte);
break;
}
}
MUTEX_UNLOCK(ht->lock);
}
struct host_table_entry *
get_table_entry(TSS_HCONTEXT tspContext)
{
struct host_table_entry *index = NULL;
MUTEX_LOCK(ht->lock);
for (index = ht->entries; index; index = index->next) {
if (index->tspContext == tspContext)
break;
}
if (index)
MUTEX_LOCK(index->lock);
MUTEX_UNLOCK(ht->lock);
return index;
}
void
put_table_entry(struct host_table_entry *entry)
{
if (entry)
MUTEX_UNLOCK(entry->lock);
}
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