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Diffstat (limited to 'src/exchangedb/exchangedb_signkeys.c')
| -rw-r--r-- | src/exchangedb/exchangedb_signkeys.c | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/src/exchangedb/exchangedb_signkeys.c b/src/exchangedb/exchangedb_signkeys.c deleted file mode 100644 index b1e8aad54..000000000 --- a/src/exchangedb/exchangedb_signkeys.c +++ /dev/null @@ -1,187 +0,0 @@ -/* - This file is part of TALER - Copyright (C) 2014, 2015, 2016, 2020 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 <http://www.gnu.org/licenses/> -*/ -/** - * @file exchangedb/exchangedb_signkeys.c - * @brief I/O operations for the Exchange's private online signing keys - * @author Florian Dold - * @author Benedikt Mueller - * @author Sree Harsha Totakura - * @author Christian Grothoff - */ -#include "platform.h" -#include "taler_exchangedb_lib.h" - - -/** - * Closure for the #signkeys_iterate_dir_iter(). - */ -struct SignkeysIterateContext -{ - - /** - * Function to call on each signing key. - */ - TALER_EXCHANGEDB_SigningKeyIterator it; - - /** - * Closure for @e it. - */ - void *it_cls; -}; - - -/** - * Function called on each file in the directory with our signing - * keys. Parses the file and calls the iterator from @a cls. - * - * @param cls the `struct SignkeysIterateContext *` - * @param filename name of the file to parse - * @return #GNUNET_OK to continue, - * #GNUNET_NO to stop iteration without error, - * #GNUNET_SYSERR to stop iteration with error - */ -static int -signkeys_iterate_dir_iter (void *cls, - const char *filename) -{ - struct SignkeysIterateContext *skc = cls; - ssize_t nread; - struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP issue; - - nread = GNUNET_DISK_fn_read (filename, - &issue, - sizeof (struct - TALER_EXCHANGEDB_PrivateSigningKeyInformationP)); - if (nread != sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP)) - { - GNUNET_log (GNUNET_ERROR_TYPE_WARNING, - "Invalid signkey file `%s': wrong size (%d, expected %u)\n", - filename, - (int) nread, - (unsigned int) sizeof (struct - TALER_EXCHANGEDB_PrivateSigningKeyInformationP)); - return GNUNET_OK; - } - if (0 == GNUNET_TIME_absolute_get_remaining - (GNUNET_TIME_absolute_ntoh (issue.issue.expire)).rel_value_us) - { - if (0 != unlink (filename)) - { - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, - "unlink", - filename); - return GNUNET_OK; /* yes, we had an error, but continue to iterate anyway */ - } - /* Expired file deleted, continue to iterate -without- calling iterator - as this key is expired */ - return GNUNET_OK; - } - return skc->it (skc->it_cls, - filename, - &issue); -} - - -/** - * Call @a it for each signing key found in the @a exchange_base_dir. - * - * @param exchange_base_dir base directory for the exchange, - * the signing keys must be in the #TALER_EXCHANGEDB_DIR_SIGNING_KEYS - * subdirectory - * @param it function to call on each signing key - * @param it_cls closure for @a it - * @return number of files found (may not match - * number of keys given to @a it as malformed - * files are simply skipped), -1 on error - */ -int -TALER_EXCHANGEDB_signing_keys_iterate (const char *exchange_base_dir, - TALER_EXCHANGEDB_SigningKeyIterator it, - void *it_cls) -{ - struct SignkeysIterateContext skc = { - .it = it, - .it_cls = it_cls - }; - char *signkey_dir; - int ret; - - GNUNET_asprintf (&signkey_dir, - "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_SIGNING_KEYS, - exchange_base_dir); - ret = GNUNET_DISK_directory_scan (signkey_dir, - &signkeys_iterate_dir_iter, - &skc); - GNUNET_free (signkey_dir); - return ret; -} - - -/** - * Exports a signing key to the given file. - * - * @param exchange_base_dir base directory for the keys - * @param start start time of the validity for the key - * @param ski the signing key - * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure. - */ -int -TALER_EXCHANGEDB_signing_key_write ( - const char *exchange_base_dir, - struct GNUNET_TIME_Absolute start, - const struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP *ski) -{ - char *skf; - ssize_t nwrite; - - GNUNET_asprintf (&skf, - "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_SIGNING_KEYS - DIR_SEPARATOR_STR "%llu", - exchange_base_dir, - (unsigned long long) start.abs_value_us); - if (GNUNET_OK != - GNUNET_DISK_directory_create_for_file (skf)) - { - int eno; - - eno = errno; - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, - "mkdir (for file)", - skf); - errno = eno; - return GNUNET_SYSERR; - } - nwrite = GNUNET_DISK_fn_write (skf, - ski, - sizeof (struct - TALER_EXCHANGEDB_PrivateSigningKeyInformationP), - GNUNET_DISK_PERM_USER_WRITE - | GNUNET_DISK_PERM_USER_READ); - if (sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP) != - (size_t) nwrite) - { - GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, - "write", - skf); - GNUNET_free (skf); - return GNUNET_SYSERR; - } - GNUNET_free (skf); - return GNUNET_OK; -} - - -/* end of exchangedb_signkeys.c */ |