rpc: new sanity check on relayed transactions

This will weed out some transactions with silly rings

2 files changed, 13 insertions, 0 deletions

diff --git a/src/rpc/core_rpc_server.cpp b/src/rpc/core_rpc_server.cpp
index 71bfcc950..97c5015ca 100644
--- a/src/rpc/core_rpc_server.cpp
+++ b/src/rpc/core_rpc_server.cpp
@@ -41,6 +41,7 @@ using namespace epee;
 #include "cryptonote_basic/cryptonote_format_utils.h"
 #include "cryptonote_basic/account.h"
 #include "cryptonote_basic/cryptonote_basic_impl.h"
+#include "cryptonote_core/tx_sanity_check.h"
 #include "misc_language.h"
 #include "net/parse.h"
 #include "storages/http_abstract_invoke.h"
@@ -844,6 +845,14 @@ namespace cryptonote
       return true;
     }
 
+    if (req.do_sanity_checks && !cryptonote::tx_sanity_check(m_core.get_blockchain_storage(), tx_blob))
+    {
+      res.status = "Failed";
+      res.reason = "Sanity check failed";
+      res.sanity_check_failed = true;
+      return true;
+    }
+
     cryptonote_connection_context fake_context = AUTO_VAL_INIT(fake_context);
     tx_verification_context tvc = AUTO_VAL_INIT(tvc);
     if(!m_core.handle_incoming_tx(tx_blob, tvc, false, false, req.do_not_relay) || tvc.m_verifivation_failed)
diff --git a/src/rpc/core_rpc_server_commands_defs.h b/src/rpc/core_rpc_server_commands_defs.h
index d2aba8d67..a1e2fdf8d 100644
--- a/src/rpc/core_rpc_server_commands_defs.h
+++ b/src/rpc/core_rpc_server_commands_defs.h
@@ -577,10 +577,12 @@ namespace cryptonote
     {
       std::string tx_as_hex;
       bool do_not_relay;
+      bool do_sanity_checks;
 
       BEGIN_KV_SERIALIZE_MAP()
         KV_SERIALIZE(tx_as_hex)
         KV_SERIALIZE_OPT(do_not_relay, false)
+        KV_SERIALIZE_OPT(do_sanity_checks, true)
       END_KV_SERIALIZE_MAP()
     };
     typedef epee::misc_utils::struct_init<request_t> request;
@@ -599,6 +601,7 @@ namespace cryptonote
       bool overspend;
       bool fee_too_low;
       bool not_rct;
+      bool sanity_check_failed;
       bool untrusted;
 
       BEGIN_KV_SERIALIZE_MAP()
@@ -613,6 +616,7 @@ namespace cryptonote
         KV_SERIALIZE(overspend)
         KV_SERIALIZE(fee_too_low)
         KV_SERIALIZE(not_rct)
+        KV_SERIALIZE(sanity_check_failed)
         KV_SERIALIZE(untrusted)
       END_KV_SERIALIZE_MAP()
     };