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Diffstat (limited to 'src/mintdb/mintdb_keyio.c')
-rw-r--r--src/mintdb/mintdb_keyio.c558
1 files changed, 0 insertions, 558 deletions
diff --git a/src/mintdb/mintdb_keyio.c b/src/mintdb/mintdb_keyio.c
deleted file mode 100644
index 89ac9055a..000000000
--- a/src/mintdb/mintdb_keyio.c
+++ /dev/null
@@ -1,558 +0,0 @@
-/*
- This file is part of TALER
- Copyright (C) 2014, 2015 GNUnet e.V.
-
- 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, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mintdb/mintdb_keyio.c
- * @brief I/O operations for the Mint's private keys
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Sree Harsha Totakura
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "taler_mintdb_lib.h"
-
-
-/**
- * Closure for the #signkeys_iterate_dir_iter().
- */
-struct SignkeysIterateContext
-{
-
- /**
- * Function to call on each signing key.
- */
- TALER_MINTDB_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_MINTDB_PrivateSigningKeyInformationP issue;
-
- nread = GNUNET_DISK_fn_read (filename,
- &issue,
- sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP));
- if (nread != sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid signkey file `%s': wrong size (%d, expected %u)\n",
- filename,
- (int) nread,
- sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP));
- return GNUNET_OK;
- }
- return skc->it (skc->it_cls,
- filename,
- &issue);
-}
-
-
-/**
- * Call @a it for each signing key found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- * the signing keys must be in the #TALER_MINTDB_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_MINTDB_signing_keys_iterate (const char *mint_base_dir,
- TALER_MINTDB_SigningKeyIterator it,
- void *it_cls)
-{
- char *signkey_dir;
- struct SignkeysIterateContext skc;
- int ret;
-
- GNUNET_asprintf (&signkey_dir,
- "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_SIGNING_KEYS,
- mint_base_dir);
- skc.it = it;
- skc.it_cls = it_cls;
- ret = GNUNET_DISK_directory_scan (signkey_dir,
- &signkeys_iterate_dir_iter,
- &skc);
- GNUNET_free (signkey_dir);
- return ret;
-}
-
-
-/**
- * Import a denomination key from the given file.
- *
- * @param filename the file to import the key from
- * @param[out] dki set to the imported denomination key
- * @return #GNUNET_OK upon success;
- * #GNUNET_SYSERR upon failure
- */
-int
-TALER_MINTDB_denomination_key_read (const char *filename,
- struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
- uint64_t size;
- size_t offset;
- void *data;
- struct GNUNET_CRYPTO_rsa_PrivateKey *priv;
-
- if (GNUNET_OK != GNUNET_DISK_file_size (filename,
- &size,
- GNUNET_YES,
- GNUNET_YES))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Skipping inaccessable denomination key file `%s'\n",
- filename);
- return GNUNET_SYSERR;
- }
- offset = sizeof (struct TALER_MINTDB_DenominationKeyInformationP);
- if (size <= offset)
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- data = GNUNET_malloc (size);
- if (size !=
- GNUNET_DISK_fn_read (filename,
- data,
- size))
- {
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
- "read",
- filename);
- GNUNET_free (data);
- return GNUNET_SYSERR;
- }
- if (NULL ==
- (priv = GNUNET_CRYPTO_rsa_private_key_decode (data + offset,
- size - offset)))
- {
- GNUNET_free (data);
- return GNUNET_SYSERR;
- }
- GNUNET_assert (NULL == dki->denom_priv.rsa_private_key);
- dki->denom_priv.rsa_private_key = priv;
- dki->denom_pub.rsa_public_key
- = GNUNET_CRYPTO_rsa_private_key_get_public (priv);
- memcpy (&dki->issue,
- data,
- offset);
- GNUNET_free (data);
- return GNUNET_OK;
-}
-
-
-/**
- * Exports a denomination key to the given file.
- *
- * @param filename the file where to write the denomination key
- * @param dki the denomination key
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
- */
-int
-TALER_MINTDB_denomination_key_write (const char *filename,
- const struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
- char *priv_enc;
- size_t priv_enc_size;
- struct GNUNET_DISK_FileHandle *fh;
- ssize_t wrote;
- size_t wsize;
- int ret;
-
- fh = NULL;
- priv_enc_size
- = GNUNET_CRYPTO_rsa_private_key_encode (dki->denom_priv.rsa_private_key,
- &priv_enc);
- ret = GNUNET_SYSERR;
- if (NULL == (fh = GNUNET_DISK_file_open
- (filename,
- GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_TRUNCATE,
- GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE)))
- goto cleanup;
- wsize = sizeof (struct TALER_MINTDB_DenominationKeyInformationP);
- if (GNUNET_SYSERR == (wrote = GNUNET_DISK_file_write (fh,
- &dki->issue,
- wsize)))
- goto cleanup;
- if (wrote != wsize)
- goto cleanup;
- if (GNUNET_SYSERR ==
- (wrote = GNUNET_DISK_file_write (fh,
- priv_enc,
- priv_enc_size)))
- goto cleanup;
- if (wrote != priv_enc_size)
- goto cleanup;
- ret = GNUNET_OK;
- cleanup:
- GNUNET_free_non_null (priv_enc);
- if (NULL != fh)
- (void) GNUNET_DISK_file_close (fh);
- return ret;
-}
-
-
-/**
- * Closure for #denomkeys_iterate_keydir_iter() and
- * #denomkeys_iterate_topdir_iter().
- */
-struct DenomkeysIterateContext
-{
-
- /**
- * Set to the name of the directory below the top-level directory
- * during the call to #denomkeys_iterate_keydir_iter().
- */
- const char *alias;
-
- /**
- * Function to call on each denomination key.
- */
- TALER_MINTDB_DenominationKeyIterator it;
-
- /**
- * Closure for @e it.
- */
- void *it_cls;
-};
-
-
-/**
- * Decode the denomination key in the given file @a filename and call
- * the callback in @a cls with the information.
- *
- * @param cls the `struct DenomkeysIterateContext *`
- * @param filename name of a file that should contain
- * a denomination key
- * @return #GNUNET_OK to continue to iterate
- * #GNUNET_NO to abort iteration with success
- * #GNUNET_SYSERR to abort iteration with failure
- */
-static int
-denomkeys_iterate_keydir_iter (void *cls,
- const char *filename)
-{
- struct DenomkeysIterateContext *dic = cls;
- struct TALER_MINTDB_DenominationKeyIssueInformation issue;
- int ret;
-
- memset (&issue, 0, sizeof (issue));
- if (GNUNET_OK !=
- TALER_MINTDB_denomination_key_read (filename,
- &issue))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
- "Invalid denomkey file: '%s'\n",
- filename);
- return GNUNET_OK;
- }
- ret = dic->it (dic->it_cls,
- dic->alias,
- &issue);
- GNUNET_CRYPTO_rsa_private_key_free (issue.denom_priv.rsa_private_key);
- GNUNET_CRYPTO_rsa_public_key_free (issue.denom_pub.rsa_public_key);
- return ret;
-}
-
-
-/**
- * Function called on each subdirectory in the #TALER_MINTDB_DIR_DENOMINATION_KEYS. Will
- * call the #denomkeys_iterate_keydir_iter() on each file in the
- * subdirectory.
- *
- * @param cls the `struct DenomkeysIterateContext *`
- * @param filename name of the subdirectory to scan
- * @return #GNUNET_OK on success,
- * #GNUNET_SYSERR if we need to abort
- */
-static int
-denomkeys_iterate_topdir_iter (void *cls,
- const char *filename)
-{
- struct DenomkeysIterateContext *dic = cls;
-
- dic->alias = GNUNET_STRINGS_get_short_name (filename);
- if (0 > GNUNET_DISK_directory_scan (filename,
- &denomkeys_iterate_keydir_iter,
- dic))
- return GNUNET_SYSERR;
- return GNUNET_OK;
-}
-
-
-/**
- * Call @a it for each denomination key found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- * the signing keys must be in the #TALER_MINTDB_DIR_DENOMINATION_KEYS
- * subdirectory
- * @param it function to call on each denomination key found
- * @param it_cls closure for @a it
- * @return -1 on error, 0 if no files were found, otherwise
- * a positive number (however, even with a positive
- * number it is possible that @a it was never called
- * as maybe none of the files were well-formed)
- */
-int
-TALER_MINTDB_denomination_keys_iterate (const char *mint_base_dir,
- TALER_MINTDB_DenominationKeyIterator it,
- void *it_cls)
-{
- char *dir;
- struct DenomkeysIterateContext dic;
- int ret;
-
- GNUNET_asprintf (&dir,
- "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_DENOMINATION_KEYS,
- mint_base_dir);
- dic.it = it;
- dic.it_cls = it_cls;
- ret = GNUNET_DISK_directory_scan (dir,
- &denomkeys_iterate_topdir_iter,
- &dic);
- GNUNET_free (dir);
- return ret;
-}
-
-
-/**
- * Closure for #auditor_iter() and
- */
-struct AuditorIterateContext
-{
-
- /**
- * Function to call with the information for each auditor.
- */
- TALER_MINTDB_AuditorIterator it;
-
- /**
- * Closure for @e it.
- */
- void *it_cls;
-};
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Header of a file with auditing information.
- */
-struct AuditorFileHeaderP
-{
-
- /**
- * Public key of the auditor.
- */
- struct TALER_AuditorPublicKeyP apub;
-
- /**
- * Master public key of the mint the auditor is signing
- * information for.
- */
- struct TALER_MasterPublicKeyP mpub;
-
-};
-GNUNET_NETWORK_STRUCT_END
-
-
-/**
- * Load the auditor signature and the information signed by the
- * auditor and call the callback in @a cls with the information.
- *
- * @param cls the `struct AuditorIterateContext *`
- * @param filename name of a file that should contain
- * a denomination key
- * @return #GNUNET_OK to continue to iterate
- * #GNUNET_NO to abort iteration with success
- * #GNUNET_SYSERR to abort iteration with failure
- */
-static int
-auditor_iter (void *cls,
- const char *filename)
-{
- struct AuditorIterateContext *aic = cls;
- uint64_t size;
- struct AuditorFileHeaderP *af;
- const struct TALER_AuditorSignatureP *sigs;
- const struct TALER_DenominationKeyValidityPS *dki;
- unsigned int len;
- int ret;
-
- if (GNUNET_OK != GNUNET_DISK_file_size (filename,
- &size,
- GNUNET_YES,
- GNUNET_YES))
- {
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- "Skipping inaccessable auditor information file `%s'\n",
- filename);
- return GNUNET_SYSERR;
- }
- if ( (size < sizeof (struct AuditorFileHeaderP)) ||
- (0 != (len = ((size - sizeof (struct AuditorFileHeaderP)) %
- (sizeof (struct TALER_DenominationKeyValidityPS) +
- sizeof (struct TALER_AuditorSignatureP))))) )
- {
- GNUNET_break (0);
- return GNUNET_SYSERR;
- }
- af = GNUNET_malloc (size);
- if (size !=
- GNUNET_DISK_fn_read (filename,
- af,
- size))
- {
- GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
- "read",
- filename);
- GNUNET_free (af);
- return GNUNET_SYSERR;
- }
- sigs = (const struct TALER_AuditorSignatureP *) &af[1];
- dki = (const struct TALER_DenominationKeyValidityPS *) &sigs[len];
- ret = aic->it (aic->it_cls,
- &af->apub,
- &af->mpub,
- len,
- sigs,
- dki);
- GNUNET_free (af);
- return ret;
-}
-
-
-/**
- * Call @a it with information for each auditor found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- * the signing keys must be in the #TALER_MINTDB_DIR_DENOMINATION_KEYS
- * subdirectory
- * @param it function to call with auditor information
- * @param it_cls closure for @a it
- * @return -1 on error, 0 if no files were found, otherwise
- * a positive number (however, even with a positive
- * number it is possible that @a it was never called
- * as maybe none of the files were well-formed)
- */
-int
-TALER_MINTDB_auditor_iterate (const char *mint_base_dir,
- TALER_MINTDB_AuditorIterator it,
- void *it_cls)
-{
- char *dir;
- struct AuditorIterateContext aic;
- int ret;
-
- GNUNET_asprintf (&dir,
- "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_AUDITORS,
- mint_base_dir);
- aic.it = it;
- aic.it_cls = it_cls;
- ret = GNUNET_DISK_directory_scan (dir,
- &auditor_iter,
- &aic);
- GNUNET_free (dir);
- return ret;
-}
-
-
-/**
- * Write auditor information to the given file.
- *
- * @param filename the file where to write the auditor information to
- * @param apub the auditor's public key
- * @param asigs the auditor's signatures, array of length @a dki_len
- * @param mpub the mint's public key (as expected by the auditor)
- * @param dki_len length of @a dki
- * @param dki array of denomination coin data signed by the auditor
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
- */
-int
-TALER_MINTDB_auditor_write (const char *filename,
- const struct TALER_AuditorPublicKeyP *apub,
- const struct TALER_AuditorSignatureP *asigs,
- const struct TALER_MasterPublicKeyP *mpub,
- unsigned int dki_len,
- const struct TALER_DenominationKeyValidityPS *dki)
-{
- struct AuditorFileHeaderP af;
- struct GNUNET_DISK_FileHandle *fh;
- ssize_t wrote;
- size_t wsize;
- int ret;
- int eno;
-
- af.apub = *apub;
- af.mpub = *mpub;
- ret = GNUNET_SYSERR;
- if (NULL == (fh = GNUNET_DISK_file_open
- (filename,
- GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_TRUNCATE,
- GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE)))
- goto cleanup;
- wsize = sizeof (struct AuditorFileHeaderP);
- if (GNUNET_SYSERR == (wrote = GNUNET_DISK_file_write (fh,
- &af,
- wsize)))
- goto cleanup;
- if (wrote != wsize)
- goto cleanup;
- wsize = dki_len * sizeof (struct TALER_AuditorSignatureP);
- if (wsize ==
- GNUNET_DISK_file_write (fh,
- asigs,
- wsize))
- ret = GNUNET_OK;
- wsize = dki_len * sizeof (struct TALER_DenominationKeyValidityPS);
- if (wsize ==
- GNUNET_DISK_file_write (fh,
- dki,
- wsize))
- ret = GNUNET_OK;
- cleanup:
- eno = errno;
- if (NULL != fh)
- (void) GNUNET_DISK_file_close (fh);
- errno = eno;
- return ret;
-}
-
-
-/* end of mintdb_keyio.c */