/*
This file is part of TALER
Copyright (C) 2017 Taler Systems SA
TALER is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
TALER 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 General Public License for more details.
You should have received a copy of the GNU General Public License along with
TALER; see the file COPYING. If not, see
*/
/**
* @file auditor/taler-wire-auditor.c
* @brief audits that wire transfers match those from an exchange database.
* @author Christian Grothoff
*
* - First, this auditor verifies that 'reserves_in' actually matches
* the incoming wire transfers from the bank.
* - Second, we check that the outgoing wire transfers match those
* given in the 'wire_out' table
*/
#include "platform.h"
#include
#include "taler_auditordb_plugin.h"
#include "taler_exchangedb_plugin.h"
#include "taler_json_lib.h"
#include "taler_wire_lib.h"
#include "taler_signatures.h"
/**
* Return value from main().
*/
static int global_ret;
/**
* Command-line option "-r": restart audit from scratch
*/
static int restart;
/**
* Name of the wire plugin to load to access the exchange's bank account.
*/
static char *wire_plugin;
/**
* Handle to access the exchange's database.
*/
static struct TALER_EXCHANGEDB_Plugin *edb;
/**
* Which currency are we doing the audit for?
*/
static char *currency;
/**
* Our configuration.
*/
static const struct GNUNET_CONFIGURATION_Handle *cfg;
/**
* Map with information about incoming wire transfers.
* Maps hashes of the wire offsets to `struct ReserveInInfo`s.
*/
static struct GNUNET_CONTAINER_MultiHashMap *in_map;
/**
* Map with information about outgoing wire transfers.
* Maps hashes of the wire offsets to `struct ReserveOutInfo`s.
*/
static struct GNUNET_CONTAINER_MultiHashMap *out_map;
/**
* Our session with the #edb.
*/
static struct TALER_EXCHANGEDB_Session *esession;
/**
* Handle to access the auditor's database.
*/
static struct TALER_AUDITORDB_Plugin *adb;
/**
* Our session with the #adb.
*/
static struct TALER_AUDITORDB_Session *asession;
/**
* Master public key of the exchange to audit.
*/
static struct TALER_MasterPublicKeyP master_pub;
/**
* Handle to the wire plugin for wire operations.
*/
static struct TALER_WIRE_Plugin *wp;
/**
* Active wire request for the transaction history.
*/
static struct TALER_WIRE_HistoryHandle *hh;
/**
* Query status for the incremental processing status in the auditordb.
*/
static enum GNUNET_DB_QueryStatus qsx;
/**
* Last reserve_in / wire_out serial IDs seen.
*/
static struct TALER_AUDITORDB_WireProgressPoint pp;
/**
* Where we are in the inbound (CREDIT) transaction history.
*/
static void *in_wire_off;
/**
* Where we are in the inbound (DEBIT) transaction history.
*/
static void *out_wire_off;
/**
* Number of bytes in #in_wire_off and #out_wire_off.
*/
static size_t wire_off_size;
/* ***************************** Shutdown **************************** */
/**
* Entry in map with wire information we expect to obtain from the
* bank later.
*/
struct ReserveInInfo
{
/**
* Hash of expected row offset.
*/
struct GNUNET_HashCode row_off_hash;
/**
* Number of bytes in @e row_off.
*/
size_t row_off_size;
/**
* Expected details about the wire transfer.
*/
struct TALER_WIRE_TransferDetails details;
/**
* RowID in reserves_in table.
*/
uint64_t rowid;
};
/**
* Entry in map with wire information we expect to obtain from the
* #edb later.
*/
struct ReserveOutInfo
{
/**
* Hash of the wire transfer subject.
*/
struct GNUNET_HashCode subject_hash;
/**
* Expected details about the wire transfer.
*/
struct TALER_WIRE_TransferDetails details;
};
/**
* Free entry in #in_map.
*
* @param cls NULL
* @param key unused key
* @param value the `struct ReserveInInfo` to free
* @return #GNUNET_OK
*/
static int
free_rii (void *cls,
const struct GNUNET_HashCode *key,
void *value)
{
struct ReserveInInfo *rii = value;
GNUNET_assert (GNUNET_YES ==
GNUNET_CONTAINER_multihashmap_remove (in_map,
key,
rii));
json_decref (rii->details.account_details);
GNUNET_free (rii);
return GNUNET_OK;
}
/**
* Free entry in #out_map.
*
* @param cls NULL
* @param key unused key
* @param value the `struct ReserveOutInfo` to free
* @return #GNUNET_OK
*/
static int
free_roi (void *cls,
const struct GNUNET_HashCode *key,
void *value)
{
struct ReserveOutInfo *roi = value;
GNUNET_assert (GNUNET_YES ==
GNUNET_CONTAINER_multihashmap_remove (out_map,
key,
roi));
json_decref (roi->details.account_details);
GNUNET_free (roi);
return GNUNET_OK;
}
/**
* Task run on shutdown.
*
* @param cls NULL
*/
static void
do_shutdown (void *cls)
{
if (NULL != hh)
{
wp->get_history_cancel (wp->cls,
hh);
hh = NULL;
}
if (NULL != in_map)
{
GNUNET_CONTAINER_multihashmap_iterate (in_map,
&free_rii,
NULL);
GNUNET_CONTAINER_multihashmap_destroy (in_map);
in_map = NULL;
}
if (NULL != out_map)
{
GNUNET_CONTAINER_multihashmap_iterate (out_map,
&free_roi,
NULL);
GNUNET_CONTAINER_multihashmap_destroy (out_map);
out_map = NULL;
}
if (NULL != wp)
{
TALER_WIRE_plugin_unload (wp);
wp = NULL;
}
if (NULL != adb)
{
TALER_AUDITORDB_plugin_unload (adb);
adb = NULL;
}
if (NULL != edb)
{
TALER_EXCHANGEDB_plugin_unload (edb);
edb = NULL;
}
}
/* ***************************** Report logic **************************** */
/**
* Report a (serious) inconsistency in the exchange's database.
*
* @param table affected table
* @param rowid affected row, UINT64_MAX if row is missing
* @param diagnostic message explaining the problem
*/
static void
report_row_inconsistency (const char *table,
uint64_t rowid,
const char *diagnostic)
{
// TODO (#4963): implement proper reporting logic writing to file.
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Database inconsistency detected in table %s at row %llu: %s\n",
table,
(unsigned long long) rowid,
diagnostic);
}
/**
* Report a minor inconsistency in the exchange's database (i.e. something
* relating to timestamps that should have no financial implications).
*
* @param table affected table
* @param rowid affected row, UINT64_MAX if row is missing
* @param diagnostic message explaining the problem
*/
static void
report_row_minor_inconsistency (const char *table,
uint64_t rowid,
const char *diagnostic)
{
// TODO (#4963): implement proper reporting logic writing to file.
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Minor inconsistency detected in table %s at row %llu: %s\n",
table,
(unsigned long long) rowid,
diagnostic);
}
/* *************************** General transaction logic ****************** */
/**
* Commit the transaction, checkpointing our progress in the auditor
* DB.
*
* @param qs transaction status so far
* @return transaction status code
*/
static enum GNUNET_DB_QueryStatus
commit (enum GNUNET_DB_QueryStatus qs)
{
if (0 > qs)
{
if (GNUNET_DB_STATUS_SOFT_ERROR == qs)
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Serialization issue, not recording progress\n");
else
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Hard error, not recording progress\n");
adb->rollback (adb->cls,
asession);
edb->rollback (edb->cls,
esession);
return qs;
}
if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qsx)
qs = adb->update_wire_auditor_progress (adb->cls,
asession,
&master_pub,
&pp,
in_wire_off,
out_wire_off,
wire_off_size);
else
qs = adb->insert_wire_auditor_progress (adb->cls,
asession,
&master_pub,
&pp,
in_wire_off,
out_wire_off,
wire_off_size);
if (0 >= qs)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Failed to update auditor DB, not recording progress\n");
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
return qs;
}
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
_("Concluded audit step at %llu/%llu\n"),
(unsigned long long) pp.last_reserve_in_serial_id,
(unsigned long long) pp.last_wire_out_serial_id);
if (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT == qs)
{
qs = edb->commit (edb->cls,
esession);
if (0 > qs)
{
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Exchange DB commit failed, rolling back transaction\n");
adb->rollback (adb->cls,
asession);
}
else
{
qs = adb->commit (adb->cls,
asession);
if (0 > qs)
{
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Auditor DB commit failed!\n");
}
}
}
else
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Processing failed, rolling back transaction\n");
adb->rollback (adb->cls,
asession);
edb->rollback (edb->cls,
esession);
}
return qs;
}
/* ***************************** Analyze reserves_out ************************ */
/**
* Function called with details about outgoing wire transfers
* as claimed by the exchange DB.
*
* @param cls NULL
* @param rowid unique serial ID for the refresh session in our DB
* @param date timestamp of the wire transfer (roughly)
* @param wtid wire transfer subject
* @param wire wire transfer details of the receiver
* @param amount amount that was wired
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
*/
static int
wire_out_cb (void *cls,
uint64_t rowid,
struct GNUNET_TIME_Absolute date,
const struct TALER_WireTransferIdentifierRawP *wtid,
const json_t *wire,
const struct TALER_Amount *amount)
{
struct GNUNET_HashCode key;
struct ReserveOutInfo *roi;
GNUNET_CRYPTO_hash (wtid,
sizeof (struct TALER_WireTransferIdentifierRawP),
&key);
roi = GNUNET_CONTAINER_multihashmap_get (in_map,
&key);
if (NULL == roi)
{
/* FIXME (#4963): do proper logging! */
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to find wire transfer `%s' over %s at `%s' in exchange database!\n",
TALER_B2S (wtid),
TALER_amount2s (amount),
GNUNET_STRINGS_absolute_time_to_string (date));
return GNUNET_OK;
}
if (0 != TALER_amount_cmp (&roi->details.amount,
amount))
{
report_row_inconsistency ("reserves_out",
rowid,
"wire amount missmatch");
return GNUNET_OK;
}
if (roi->details.execution_date.abs_value_us !=
date.abs_value_us)
{
report_row_minor_inconsistency ("reserves_out",
rowid,
"execution date missmatch");
}
if (! json_equal ((json_t *) wire,
roi->details.account_details))
{
report_row_inconsistency ("reserves_out",
rowid,
"receiver account missmatch");
return GNUNET_OK;
}
GNUNET_assert (GNUNET_OK ==
GNUNET_CONTAINER_multihashmap_remove (out_map,
&key,
roi));
GNUNET_assert (GNUNET_OK ==
free_roi (NULL,
&key,
roi));
return GNUNET_OK;
}
/**
* Complain that we failed to match an entry from #out_map.
*
* @param cls NULL
* @param key unused key
* @param value the `struct ReserveOutInfo` to free
* @return #GNUNET_OK
*/
static int
complain_out_not_found (void *cls,
const struct GNUNET_HashCode *key,
void *value)
{
struct ReserveOutInfo *roi = value;
/* FIXME (#4963): log more precisely which wire transfer (and amount)
is bogus. */
report_row_inconsistency ("reserves_out",
UINT64_MAX,
"matching wire transfer not found");
return GNUNET_OK;
}
/**
* Go over the "wire_out" table of the exchange and
* verify that all wire outs are in that table.
*/
static void
check_exchange_wire_out ()
{
enum GNUNET_DB_QueryStatus qs;
qs = edb->select_wire_out_above_serial_id (edb->cls,
esession,
pp.last_wire_out_serial_id,
&wire_out_cb,
NULL);
if (0 > qs)
{
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
GNUNET_CONTAINER_multihashmap_iterate (out_map,
&complain_out_not_found,
NULL);
/* clean up (technically redundant, but nicer) */
GNUNET_CONTAINER_multihashmap_iterate (out_map,
&free_roi,
NULL);
GNUNET_CONTAINER_multihashmap_destroy (out_map);
out_map = NULL;
/* conclude with: */
commit (GNUNET_DB_STATUS_SUCCESS_ONE_RESULT);
GNUNET_SCHEDULER_shutdown ();
}
/**
* This function is called for all transactions that
* are credited to the exchange's account (incoming
* transactions).
*
* @param cls closure
* @param dir direction of the transfer
* @param row_off identification of the position at which we are querying
* @param row_off_size number of bytes in @a row_off
* @param details details about the wire transfer
* @return #GNUNET_OK to continue, #GNUNET_SYSERR to abort iteration
*/
static int
history_debit_cb (void *cls,
enum TALER_BANK_Direction dir,
const void *row_off,
size_t row_off_size,
const struct TALER_WIRE_TransferDetails *details)
{
struct ReserveOutInfo *roi;
if (TALER_BANK_DIRECTION_NONE == dir)
{
/* end of iteration, now check wire_out to see
if it matches #out_map */
hh = NULL;
check_exchange_wire_out ();
return GNUNET_OK;
}
roi = GNUNET_new (struct ReserveOutInfo);
GNUNET_CRYPTO_hash (&details->reserve_pub, /* FIXME (#5077): missnomer */
sizeof (details->reserve_pub),
&roi->subject_hash);
roi->details.amount = details->amount;
roi->details.execution_date = details->execution_date;
roi->details.reserve_pub = details->reserve_pub; /* FIXME (#5077): missnomer & redundant */
roi->details.account_details = json_incref ((json_t *) details->account_details);
if (GNUNET_OK !=
GNUNET_CONTAINER_multihashmap_put (out_map,
&roi->subject_hash,
roi,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
{
GNUNET_break_op (0); /* duplicate wire offset is not allowed! */
report_row_inconsistency ("bank wire log",
UINT64_MAX,
"duplicate wire offset");
return GNUNET_SYSERR;
}
return GNUNET_OK;
}
/**
* Main functin for processing 'reserves_out' data.
* We start by going over the DEBIT transactions this
* time, and then verify that all of them are justified
* by 'reserves_out'.
*/
static void
process_debits ()
{
GNUNET_assert (NULL == hh);
out_map = GNUNET_CONTAINER_multihashmap_create (1024,
GNUNET_YES);
hh = wp->get_history (wp->cls,
TALER_BANK_DIRECTION_DEBIT,
out_wire_off,
wire_off_size,
INT64_MAX,
&history_debit_cb,
NULL);
if (NULL == hh)
{
fprintf (stderr,
"Failed to obtain bank transaction history\n");
commit (GNUNET_DB_STATUS_HARD_ERROR);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
}
/* ***************************** Analyze reserves_in ************************ */
/**
* Function called with details about incoming wire transfers
* as claimed by the exchange DB.
*
* @param cls NULL
* @param rowid unique serial ID for the refresh session in our DB
* @param reserve_pub public key of the reserve (also the WTID)
* @param credit amount that was received
* @param sender_account_details information about the sender's bank account
* @param wire_reference unique identifier for the wire transfer (plugin-specific format)
* @param wire_reference_size number of bytes in @a wire_reference
* @param execution_date when did we receive the funds
* @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
*/
static int
reserve_in_cb (void *cls,
uint64_t rowid,
const struct TALER_ReservePublicKeyP *reserve_pub,
const struct TALER_Amount *credit,
const json_t *sender_account_details,
const void *wire_reference,
size_t wire_reference_size,
struct GNUNET_TIME_Absolute execution_date)
{
struct ReserveInInfo *rii;
rii = GNUNET_new (struct ReserveInInfo);
GNUNET_CRYPTO_hash (wire_reference,
wire_reference_size,
&rii->row_off_hash);
rii->row_off_size = wire_reference_size;
rii->details.amount = *credit;
rii->details.execution_date = execution_date;
rii->details.reserve_pub = *reserve_pub;
rii->details.account_details = json_incref ((json_t *) sender_account_details);
rii->rowid = rowid;
if (GNUNET_OK !=
GNUNET_CONTAINER_multihashmap_put (in_map,
&rii->row_off_hash,
rii,
GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY))
{
GNUNET_break_op (0); /* duplicate wire offset is not allowed! */
report_row_inconsistency ("reserves_in",
rowid,
"duplicate wire offset");
return GNUNET_SYSERR;
}
pp.last_reserve_in_serial_id = rowid + 1;
return GNUNET_OK;
}
/**
* Complain that we failed to match an entry from #in_map.
*
* @param cls NULL
* @param key unused key
* @param value the `struct ReserveInInfo` to free
* @return #GNUNET_OK
*/
static int
complain_in_not_found (void *cls,
const struct GNUNET_HashCode *key,
void *value)
{
struct ReserveInInfo *rii = value;
report_row_inconsistency ("reserves_in",
rii->rowid,
"matching wire transfer not found");
return GNUNET_OK;
}
/**
* This function is called for all transactions that
* are credited to the exchange's account (incoming
* transactions).
*
* @param cls closure
* @param dir direction of the transfer
* @param row_off identification of the position at which we are querying
* @param row_off_size number of bytes in @a row_off
* @param details details about the wire transfer
* @return #GNUNET_OK to continue, #GNUNET_SYSERR to abort iteration
*/
static int
history_credit_cb (void *cls,
enum TALER_BANK_Direction dir,
const void *row_off,
size_t row_off_size,
const struct TALER_WIRE_TransferDetails *details)
{
struct ReserveInInfo *rii;
struct GNUNET_HashCode key;
if (TALER_BANK_DIRECTION_NONE == dir)
{
/* end of operation */
hh = NULL;
GNUNET_CONTAINER_multihashmap_iterate (in_map,
&complain_in_not_found,
NULL);
/* clean up before 2nd phase */
GNUNET_CONTAINER_multihashmap_iterate (in_map,
&free_rii,
NULL);
GNUNET_CONTAINER_multihashmap_destroy (in_map);
in_map = NULL;
process_debits ();
return GNUNET_SYSERR;
}
GNUNET_CRYPTO_hash (row_off,
row_off_size,
&key);
rii = GNUNET_CONTAINER_multihashmap_get (in_map,
&key);
if (NULL == rii)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Failed to find wire transfer at `%s' in exchange database. Audit ends at this point in time.\n",
GNUNET_STRINGS_absolute_time_to_string (details->execution_date));
return GNUNET_SYSERR;
}
/* Update offset */
if (NULL == in_wire_off)
{
wire_off_size = row_off_size;
in_wire_off = GNUNET_malloc (row_off_size);
}
if (wire_off_size != row_off_size)
{
GNUNET_break (0);
commit (GNUNET_DB_STATUS_HARD_ERROR);
GNUNET_SCHEDULER_shutdown ();
return GNUNET_SYSERR;
}
memcpy (in_wire_off,
row_off,
row_off_size);
/* compare records with expected data */
if (row_off_size != rii->row_off_size)
{
GNUNET_break (0);
report_row_inconsistency ("reserves_in",
rii->rowid,
"wire reference size missmatch");
return GNUNET_OK;
}
if (0 != TALER_amount_cmp (&rii->details.amount,
&details->amount))
{
report_row_inconsistency ("reserves_in",
rii->rowid,
"wire amount missmatch");
return GNUNET_OK;
}
if (details->execution_date.abs_value_us !=
rii->details.execution_date.abs_value_us)
{
report_row_minor_inconsistency ("reserves_in",
rii->rowid,
"execution date missmatch");
}
if (0 != memcmp (&details->reserve_pub,
&rii->details.reserve_pub,
sizeof (struct TALER_ReservePublicKeyP)))
{
report_row_inconsistency ("reserves_in",
rii->rowid,
"reserve public key / wire subject missmatch");
return GNUNET_OK;
}
if (! json_equal (details->account_details,
rii->details.account_details))
{
report_row_minor_inconsistency ("reserves_in",
rii->rowid,
"sender account missmatch");
}
GNUNET_assert (GNUNET_OK ==
GNUNET_CONTAINER_multihashmap_remove (in_map,
&key,
rii));
GNUNET_assert (GNUNET_OK ==
free_rii (NULL,
&key,
rii));
return GNUNET_OK;
}
/* ***************************** Setup logic ************************ */
/**
* Main function that will be run.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param c configuration
*/
static void
run (void *cls,
char *const *args,
const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *c)
{
enum GNUNET_DB_QueryStatus qs;
int ret;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Launching auditor\n");
cfg = c;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg,
"taler",
"CURRENCY",
¤cy))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"taler",
"CURRENCY");
global_ret = 1;
return;
}
if (NULL ==
(edb = TALER_EXCHANGEDB_plugin_load (cfg)))
{
fprintf (stderr,
"Failed to initialize exchange database plugin.\n");
global_ret = 1;
return;
}
if (NULL ==
(adb = TALER_AUDITORDB_plugin_load (cfg)))
{
fprintf (stderr,
"Failed to initialize auditor database plugin.\n");
global_ret = 1;
TALER_EXCHANGEDB_plugin_unload (edb);
return;
}
if (restart)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Full audit restart requested, dropping old audit data.\n");
GNUNET_break (GNUNET_OK ==
adb->drop_tables (adb->cls));
TALER_AUDITORDB_plugin_unload (adb);
if (NULL ==
(adb = TALER_AUDITORDB_plugin_load (cfg)))
{
fprintf (stderr,
"Failed to initialize auditor database plugin after drop.\n");
global_ret = 1;
TALER_EXCHANGEDB_plugin_unload (edb);
return;
}
GNUNET_break (GNUNET_OK ==
adb->create_tables (adb->cls));
}
GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
NULL);
esession = edb->get_session (edb->cls);
if (NULL == esession)
{
fprintf (stderr,
"Failed to initialize exchange session.\n");
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
asession = adb->get_session (adb->cls);
if (NULL == asession)
{
fprintf (stderr,
"Failed to initialize auditor session.\n");
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
wp = TALER_WIRE_plugin_load (cfg,
wire_plugin);
if (NULL == wp)
{
fprintf (stderr,
"Failed to load wire plugin `%s'\n",
wire_plugin);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Starting audit\n");
ret = adb->start (adb->cls,
asession);
if (GNUNET_OK != ret)
{
GNUNET_break (0);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
ret = edb->start (edb->cls,
esession);
if (GNUNET_OK != ret)
{
GNUNET_break (0);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
qsx = adb->get_wire_auditor_progress (adb->cls,
asession,
&master_pub,
&pp,
&in_wire_off,
&out_wire_off,
&wire_off_size);
if (0 > qsx)
{
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qsx);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qsx)
{
GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
_("First analysis using this auditor, starting audit from scratch\n"));
}
else
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
_("Resuming audit at %llu/%llu\n"),
(unsigned long long) pp.last_reserve_in_serial_id,
(unsigned long long) pp.last_wire_out_serial_id);
}
in_map = GNUNET_CONTAINER_multihashmap_create (1024,
GNUNET_YES);
qs = edb->select_reserves_in_above_serial_id (edb->cls,
esession,
pp.last_reserve_in_serial_id,
&reserve_in_cb,
NULL);
if (0 > qs)
{
GNUNET_break (GNUNET_DB_STATUS_SOFT_ERROR == qs);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
if (GNUNET_DB_STATUS_SUCCESS_NO_RESULTS == qs)
{
GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
"No new incoming transactions available, skipping CREDIT phase\n");
process_debits ();
return;
}
hh = wp->get_history (wp->cls,
TALER_BANK_DIRECTION_CREDIT,
in_wire_off,
wire_off_size,
INT64_MAX,
&history_credit_cb,
NULL);
if (NULL == hh)
{
fprintf (stderr,
"Failed to obtain bank transaction history\n");
commit (GNUNET_DB_STATUS_HARD_ERROR);
global_ret = 1;
GNUNET_SCHEDULER_shutdown ();
return;
}
}
/**
* The main function of the database initialization tool.
* Used to initialize the Taler Exchange's database.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc,
char *const *argv)
{
const struct GNUNET_GETOPT_CommandLineOption options[] = {
GNUNET_GETOPT_option_mandatory
(GNUNET_GETOPT_option_base32_auto ('m',
"exchange-key",
"KEY",
"public key of the exchange (Crockford base32 encoded)",
&master_pub)),
GNUNET_GETOPT_option_flag ('r',
"restart",
"restart audit from the beginning (required on first run)",
&restart),
GNUNET_GETOPT_option_string ('w',
"wire",
"PLUGINNAME",
"name of the wire plugin to use",
&wire_plugin),
GNUNET_GETOPT_OPTION_END
};
/* force linker to link against libtalerutil; if we do
not do this, the linker may "optimize" libtalerutil
away and skip #TALER_OS_init(), which we do need */
(void) TALER_project_data_default ();
GNUNET_assert (GNUNET_OK ==
GNUNET_log_setup ("taler-wire-auditor",
"MESSAGE",
NULL));
if (GNUNET_OK !=
GNUNET_PROGRAM_run (argc,
argv,
"taler-wire-auditor",
"Audit exchange database for consistency with the bank's wire transfers",
options,
&run,
NULL))
return 1;
return global_ret;
}
/* end of taler-wire-auditor.c */