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/*****************************************************************************
* memory.c: Memory keystore
*****************************************************************************
* Copyright © 2015-2016 VLC authors, VideoLAN and VideoLabs
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_memory.h>
#include <vlc_keystore.h>
#include <vlc_strings.h>
#include <assert.h>
#include "list_util.h"
static int Open(vlc_object_t *);
static void Close(vlc_object_t *);
vlc_module_begin()
set_shortname(N_("Memory keystore"))
set_description(N_("Secrets are stored in memory"))
set_category(CAT_ADVANCED)
set_subcategory(SUBCAT_ADVANCED_MISC)
set_capability("keystore", 0)
set_callbacks(Open, Close)
add_shortcut("memory")
vlc_module_end ()
struct vlc_keystore_sys
{
struct ks_list list;
vlc_mutex_t lock;
};
static int
Store(vlc_keystore *p_keystore, const char *const ppsz_values[KEY_MAX],
const uint8_t *p_secret, size_t i_secret_len, const char *psz_label)
{
(void) psz_label;
vlc_keystore_sys *p_sys = p_keystore->p_sys;
struct ks_list *p_list = &p_sys->list;
vlc_keystore_entry *p_entry;
int i_ret = VLC_EGENERIC;
vlc_mutex_lock(&p_sys->lock);
p_entry = ks_list_find_entry(p_list, ppsz_values, NULL);
if (p_entry)
vlc_keystore_release_entry(p_entry);
else
{
p_entry = ks_list_new_entry(p_list);
if (!p_entry)
goto end;
}
if (ks_values_copy((const char **)p_entry->ppsz_values, ppsz_values))
goto end;
if (vlc_keystore_entry_set_secret(p_entry, p_secret, i_secret_len))
goto end;
i_ret = VLC_SUCCESS;
end:
vlc_mutex_unlock(&p_sys->lock);
return i_ret;
}
static unsigned int
Find(vlc_keystore *p_keystore, const char *const ppsz_values[KEY_MAX],
vlc_keystore_entry **pp_entries)
{
vlc_keystore_sys *p_sys = p_keystore->p_sys;
struct ks_list *p_list = &p_sys->list;
struct ks_list out_list = { 0 };
vlc_keystore_entry *p_entry;
unsigned i_index = 0;
vlc_mutex_lock(&p_sys->lock);
while ((p_entry = ks_list_find_entry(p_list, ppsz_values, &i_index)))
{
vlc_keystore_entry *p_out_entry = ks_list_new_entry(&out_list);
if (!p_out_entry
|| ks_values_copy((const char **)p_out_entry->ppsz_values,
(const char *const*)p_entry->ppsz_values))
{
ks_list_free(&out_list);
break;
}
if (vlc_keystore_entry_set_secret(p_out_entry, p_entry->p_secret,
p_entry->i_secret_len))
{
ks_list_free(&out_list);
break;
}
}
vlc_mutex_unlock(&p_sys->lock);
*pp_entries = out_list.p_entries;
return out_list.i_count;
}
static unsigned int
Remove(vlc_keystore *p_keystore, const char *const ppsz_values[KEY_MAX])
{
vlc_keystore_sys *p_sys = p_keystore->p_sys;
struct ks_list *p_list = &p_sys->list;
vlc_keystore_entry *p_entry;
unsigned i_index = 0, i_count = 0;
vlc_mutex_lock(&p_sys->lock);
while ((p_entry = ks_list_find_entry(p_list, ppsz_values, &i_index)))
{
vlc_keystore_release_entry(p_entry);
i_count++;
}
vlc_mutex_unlock(&p_sys->lock);
return i_count;
}
static void
Close(vlc_object_t *p_this)
{
vlc_keystore *p_keystore = (vlc_keystore *)p_this;
vlc_keystore_sys *p_sys = p_keystore->p_sys;
ks_list_free(&p_sys->list);
vlc_mutex_destroy(&p_keystore->p_sys->lock);
free(p_sys);
}
static int
Open(vlc_object_t *p_this)
{
vlc_keystore *p_keystore = (vlc_keystore *)p_this;
p_keystore->p_sys = calloc(1, sizeof(vlc_keystore_sys));
if (!p_keystore->p_sys)
return VLC_EGENERIC;
vlc_mutex_init(&p_keystore->p_sys->lock);
p_keystore->pf_store = Store;
p_keystore->pf_find = Find;
p_keystore->pf_remove = Remove;
return VLC_SUCCESS;
}
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