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path: root/src/exchange/taler-exchange-httpd_keys.c
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Diffstat (limited to 'src/exchange/taler-exchange-httpd_keys.c')
-rw-r--r--src/exchange/taler-exchange-httpd_keys.c272
1 files changed, 169 insertions, 103 deletions
diff --git a/src/exchange/taler-exchange-httpd_keys.c b/src/exchange/taler-exchange-httpd_keys.c
index fe7a024c..e955cd95 100644
--- a/src/exchange/taler-exchange-httpd_keys.c
+++ b/src/exchange/taler-exchange-httpd_keys.c
@@ -293,6 +293,12 @@ struct TEH_KeyStateHandle
*/
struct GNUNET_TIME_Absolute next_reload;
+ /**
+ * True if #finish_keys_response() was not yet run and this key state
+ * is only suitable for the /management/keys API.
+ */
+ bool management_only;
+
};
@@ -888,7 +894,10 @@ TEH_keys_init ()
if (0 !=
pthread_key_create (&key_state,
&destroy_key_state_cb))
+ {
+ GNUNET_break (0);
return GNUNET_SYSERR;
+ }
key_state_available = true;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_time (TEH_cfg,
@@ -1125,87 +1134,6 @@ auditor_denom_cb (
/**
- * Create a key state.
- *
- * @param[in] hs helper state to (re)use, NULL if not available
- * @return NULL on error (i.e. failed to access database)
- */
-static struct TEH_KeyStateHandle *
-build_key_state (struct HelperState *hs)
-{
- struct TEH_KeyStateHandle *ksh;
- enum GNUNET_DB_QueryStatus qs;
-
- ksh = GNUNET_new (struct TEH_KeyStateHandle);
- ksh->reload_time = GNUNET_TIME_absolute_get ();
- GNUNET_TIME_round_abs (&ksh->reload_time);
- /* We must use the key_generation from when we STARTED the process! */
- ksh->key_generation = key_generation;
- if (NULL == hs)
- {
- if (GNUNET_OK !=
- setup_key_helpers (&ksh->helpers))
- {
- GNUNET_free (ksh);
- return NULL;
- }
- }
- else
- {
- ksh->helpers = *hs;
- }
- ksh->denomkey_map = GNUNET_CONTAINER_multihashmap_create (1024,
- GNUNET_YES);
- ksh->signkey_map = GNUNET_CONTAINER_multipeermap_create (32,
- GNUNET_NO /* MUST be NO! */);
- ksh->auditors = json_array ();
- /* NOTE: fetches master-signed signkeys, but ALSO those that were revoked! */
- qs = TEH_plugin->iterate_denominations (TEH_plugin->cls,
- &denomination_info_cb,
- ksh);
- if (qs < 0)
- {
- GNUNET_break (0);
- destroy_key_state (ksh,
- true);
- return NULL;
- }
- /* NOTE: ONLY fetches non-revoked AND master-signed signkeys! */
- qs = TEH_plugin->iterate_active_signkeys (TEH_plugin->cls,
- &signkey_info_cb,
- ksh);
- if (qs < 0)
- {
- GNUNET_break (0);
- destroy_key_state (ksh,
- true);
- return NULL;
- }
- qs = TEH_plugin->iterate_active_auditors (TEH_plugin->cls,
- &auditor_info_cb,
- ksh);
- if (qs < 0)
- {
- GNUNET_break (0);
- destroy_key_state (ksh,
- true);
- return NULL;
- }
- qs = TEH_plugin->iterate_auditor_denominations (TEH_plugin->cls,
- &auditor_denom_cb,
- ksh);
- if (qs < 0)
- {
- GNUNET_break (0);
- destroy_key_state (ksh,
- true);
- return NULL;
- }
- return ksh;
-}
-
-
-/**
* Closure for #add_sign_key_cb.
*/
struct SignKeyCtx
@@ -1462,9 +1390,10 @@ create_krd (struct TEH_KeyStateHandle *ksh,
enum TALER_ErrorCode ec;
if (TALER_EC_NONE !=
- (ec = TEH_keys_exchange_sign (&ks,
- &exchange_pub,
- &exchange_sig)))
+ (ec = TEH_keys_exchange_sign2 (ksh,
+ &ks,
+ &exchange_pub,
+ &exchange_sig)))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Could not create key response data: cannot sign (%s)\n",
@@ -1544,7 +1473,7 @@ create_krd (struct TEH_KeyStateHandle *ksh,
/**
- * Update the "/keys" responses in @a ksh up to @a now into the future.
+ * Update the "/keys" responses in @a ksh, computing the detailed replies.
*
* This function is to recompute all (including cherry-picked) responses we
* might want to return, based on the state already in @a ksh.
@@ -1553,7 +1482,7 @@ create_krd (struct TEH_KeyStateHandle *ksh,
* @return #GNUNET_OK on success
*/
static int
-update_keys_response (struct TEH_KeyStateHandle *ksh)
+finish_keys_response (struct TEH_KeyStateHandle *ksh)
{
json_t *recoup;
struct SignKeyCtx sctx;
@@ -1686,10 +1615,109 @@ update_keys_response (struct TEH_KeyStateHandle *ksh)
json_decref (sctx.signkeys);
json_decref (recoup);
json_decref (denoms);
+ ksh->management_only = false;
return GNUNET_OK;
}
+/**
+ * Create a key state.
+ *
+ * @param[in] hs helper state to (re)use, NULL if not available
+ * @param management_only if we should NOT run 'finish_keys_response()'
+ * because we only need the state for the /management/keys API
+ * @return NULL on error (i.e. failed to access database)
+ */
+static struct TEH_KeyStateHandle *
+build_key_state (struct HelperState *hs,
+ bool management_only)
+{
+ struct TEH_KeyStateHandle *ksh;
+ enum GNUNET_DB_QueryStatus qs;
+
+ ksh = GNUNET_new (struct TEH_KeyStateHandle);
+ ksh->reload_time = GNUNET_TIME_absolute_get ();
+ GNUNET_TIME_round_abs (&ksh->reload_time);
+ /* We must use the key_generation from when we STARTED the process! */
+ ksh->key_generation = key_generation;
+ if (NULL == hs)
+ {
+ if (GNUNET_OK !=
+ setup_key_helpers (&ksh->helpers))
+ {
+ GNUNET_free (ksh);
+ return NULL;
+ }
+ }
+ else
+ {
+ ksh->helpers = *hs;
+ }
+ ksh->denomkey_map = GNUNET_CONTAINER_multihashmap_create (1024,
+ GNUNET_YES);
+ ksh->signkey_map = GNUNET_CONTAINER_multipeermap_create (32,
+ GNUNET_NO /* MUST be NO! */);
+ ksh->auditors = json_array ();
+ /* NOTE: fetches master-signed signkeys, but ALSO those that were revoked! */
+ qs = TEH_plugin->iterate_denominations (TEH_plugin->cls,
+ &denomination_info_cb,
+ ksh);
+ if (qs < 0)
+ {
+ GNUNET_break (0);
+ destroy_key_state (ksh,
+ true);
+ return NULL;
+ }
+ /* NOTE: ONLY fetches non-revoked AND master-signed signkeys! */
+ qs = TEH_plugin->iterate_active_signkeys (TEH_plugin->cls,
+ &signkey_info_cb,
+ ksh);
+ if (qs < 0)
+ {
+ GNUNET_break (0);
+ destroy_key_state (ksh,
+ true);
+ return NULL;
+ }
+ qs = TEH_plugin->iterate_active_auditors (TEH_plugin->cls,
+ &auditor_info_cb,
+ ksh);
+ if (qs < 0)
+ {
+ GNUNET_break (0);
+ destroy_key_state (ksh,
+ true);
+ return NULL;
+ }
+ qs = TEH_plugin->iterate_auditor_denominations (TEH_plugin->cls,
+ &auditor_denom_cb,
+ ksh);
+ if (qs < 0)
+ {
+ GNUNET_break (0);
+ destroy_key_state (ksh,
+ true);
+ return NULL;
+ }
+ if (management_only)
+ {
+ ksh->management_only = true;
+ return ksh;
+ }
+ if (GNUNET_OK !=
+ finish_keys_response (ksh))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Could not finish /keys response (likely no signing keys available yet)\n");
+ destroy_key_state (ksh,
+ true);
+ return NULL;
+ }
+ return ksh;
+}
+
+
void
TEH_keys_update_states ()
{
@@ -1699,8 +1727,16 @@ TEH_keys_update_states ()
}
-struct TEH_KeyStateHandle *
-TEH_get_key_state (void)
+/**
+ * Obtain the key state for the current thread. Should ONLY be used
+ * directly if @a management_only is true. Otherwise use #TEH_get_key_state().
+ *
+ * @param management_only if we should NOT run 'finish_keys_response()'
+ * because we only need the state for the /management/keys API
+ * @return NULL on error
+ */
+static struct TEH_KeyStateHandle *
+get_key_state (bool management_only)
{
struct TEH_KeyStateHandle *old_ksh;
struct TEH_KeyStateHandle *ksh;
@@ -1709,7 +1745,8 @@ TEH_get_key_state (void)
old_ksh = pthread_getspecific (key_state);
if (NULL == old_ksh)
{
- ksh = build_key_state (NULL);
+ ksh = build_key_state (NULL,
+ management_only);
if (NULL == ksh)
return NULL;
if (0 != pthread_setspecific (key_state,
@@ -1728,7 +1765,8 @@ TEH_get_key_state (void)
"Rebuilding /keys, generation upgrade from %llu to %llu\n",
(unsigned long long) old_ksh->key_generation,
(unsigned long long) key_generation);
- ksh = build_key_state (&old_ksh->helpers);
+ ksh = build_key_state (&old_ksh->helpers,
+ management_only);
if (0 != pthread_setspecific (key_state,
ksh))
{
@@ -1748,6 +1786,24 @@ TEH_get_key_state (void)
}
+struct TEH_KeyStateHandle *
+TEH_get_key_state (void)
+{
+ struct TEH_KeyStateHandle *ksh;
+
+ ksh = get_key_state (false);
+ if (NULL == ksh)
+ return NULL;
+ if (ksh->management_only)
+ {
+ if (GNUNET_OK !=
+ finish_keys_response (ksh))
+ return NULL;
+ }
+ return ksh;
+}
+
+
struct TEH_DenominationKey *
TEH_keys_denomination_by_hash (const struct GNUNET_HashCode *h_denom_pub,
enum TALER_ErrorCode *ec,
@@ -1830,13 +1886,12 @@ TEH_keys_denomination_revoke (const struct GNUNET_HashCode *h_denom_pub)
enum TALER_ErrorCode
-TEH_keys_exchange_sign_ (const struct
- GNUNET_CRYPTO_EccSignaturePurpose *purpose,
- struct TALER_ExchangePublicKeyP *pub,
- struct TALER_ExchangeSignatureP *sig)
+TEH_keys_exchange_sign_ (
+ const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
+ struct TALER_ExchangePublicKeyP *pub,
+ struct TALER_ExchangeSignatureP *sig)
{
struct TEH_KeyStateHandle *ksh;
- enum TALER_ErrorCode ec;
ksh = TEH_get_key_state ();
if (NULL == ksh)
@@ -1847,6 +1902,22 @@ TEH_keys_exchange_sign_ (const struct
"Cannot sign request, no valid signing keys available.\n");
return TALER_EC_EXCHANGE_GENERIC_KEYS_MISSING;
}
+ return TEH_keys_exchange_sign2_ (ksh,
+ purpose,
+ pub,
+ sig);
+}
+
+
+enum TALER_ErrorCode
+TEH_keys_exchange_sign2_ (
+ struct TEH_KeyStateHandle *ksh,
+ const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
+ struct TALER_ExchangePublicKeyP *pub,
+ struct TALER_ExchangeSignatureP *sig)
+{
+ enum TALER_ErrorCode ec;
+
ec = TALER_CRYPTO_helper_esign_sign_ (ksh->helpers.esh,
purpose,
pub,
@@ -1971,11 +2042,6 @@ TEH_keys_get_handler (const struct TEH_RequestHandler *rh,
{
return suspend_request (connection);
}
- if (GNUNET_OK !=
- update_keys_response (ksh))
- {
- return suspend_request (connection);
- }
krd = bsearch (&last_issue_date,
ksh->krd_array,
ksh->krd_array_length,
@@ -2152,7 +2218,7 @@ TEH_keys_load_fees (const struct GNUNET_HashCode *h_denom_pub,
struct HelperDenomination *hd;
int ok;
- ksh = TEH_get_key_state ();
+ ksh = get_key_state (true);
if (NULL == ksh)
{
GNUNET_break (0);
@@ -2184,7 +2250,7 @@ TEH_keys_get_timing (const struct TALER_ExchangePublicKeyP *exchange_pub,
struct HelperSignkey *hsk;
struct GNUNET_PeerIdentity pid;
- ksh = TEH_get_key_state ();
+ ksh = get_key_state (true);
if (NULL == ksh)
{
GNUNET_break (0);
@@ -2354,7 +2420,7 @@ TEH_keys_management_get_handler (const struct TEH_RequestHandler *rh,
struct TEH_KeyStateHandle *ksh;
json_t *reply;
- ksh = TEH_get_key_state ();
+ ksh = get_key_state (true);
if (NULL == ksh)
{
GNUNET_break (0);