diff options
Diffstat (limited to 'contrib')
| -rw-r--r-- | contrib/epee/include/net/levin_base.h | 3 | ||||
| -rw-r--r-- | contrib/epee/include/net/levin_protocol_handler_async.h | 32 |
2 files changed, 25 insertions, 10 deletions
diff --git a/contrib/epee/include/net/levin_base.h b/contrib/epee/include/net/levin_base.h index f9b6f9a81..2c96c47b9 100644 --- a/contrib/epee/include/net/levin_base.h +++ b/contrib/epee/include/net/levin_base.h @@ -72,7 +72,8 @@ namespace levin #define LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED 0 -#define LEVIN_DEFAULT_MAX_PACKET_SIZE 100000000 //100MB by default +#define LEVIN_INITIAL_MAX_PACKET_SIZE 256*1024 // 256 KiB before handshake +#define LEVIN_DEFAULT_MAX_PACKET_SIZE 100000000 //100MB by default after handshake #define LEVIN_PACKET_REQUEST 0x00000001 #define LEVIN_PACKET_RESPONSE 0x00000002 diff --git a/contrib/epee/include/net/levin_protocol_handler_async.h b/contrib/epee/include/net/levin_protocol_handler_async.h index 1341a4ae6..f77f5d0a1 100644 --- a/contrib/epee/include/net/levin_protocol_handler_async.h +++ b/contrib/epee/include/net/levin_protocol_handler_async.h @@ -84,7 +84,8 @@ class async_protocol_handler_config public: typedef t_connection_context connection_context; - uint64_t m_max_packet_size; + uint64_t m_initial_max_packet_size; + uint64_t m_max_packet_size; uint64_t m_invoke_timeout; int invoke(int command, const epee::span<const uint8_t> in_buff, std::string& buff_out, boost::uuids::uuid connection_id); @@ -105,7 +106,7 @@ public: size_t get_in_connections_count(); void set_handler(levin_commands_handler<t_connection_context>* handler, void (*destroy)(levin_commands_handler<t_connection_context>*) = NULL); - async_protocol_handler_config():m_pcommands_handler(NULL), m_pcommands_handler_destroy(NULL), m_max_packet_size(LEVIN_DEFAULT_MAX_PACKET_SIZE), m_invoke_timeout(LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED) + async_protocol_handler_config():m_pcommands_handler(NULL), m_pcommands_handler_destroy(NULL), m_initial_max_packet_size(LEVIN_INITIAL_MAX_PACKET_SIZE), m_max_packet_size(LEVIN_DEFAULT_MAX_PACKET_SIZE), m_invoke_timeout(LEVIN_DEFAULT_TIMEOUT_PRECONFIGURED) {} ~async_protocol_handler_config() { set_handler(NULL, NULL); } void del_out_connections(size_t count); @@ -162,6 +163,7 @@ public: net_utils::i_service_endpoint* m_pservice_endpoint; config_type& m_config; t_connection_context& m_connection_context; + std::atomic<uint64_t> m_max_packet_size; net_utils::buffer m_cache_in_buffer; stream_state m_state; @@ -289,7 +291,8 @@ public: m_current_head(bucket_head2()), m_pservice_endpoint(psnd_hndlr), m_config(config), - m_connection_context(conn_context), + m_connection_context(conn_context), + m_max_packet_size(config.m_initial_max_packet_size), m_cache_in_buffer(4 * 1024), m_state(stream_state_head) { @@ -399,13 +402,14 @@ public: } // these should never fail, but do runtime check for safety - CHECK_AND_ASSERT_MES(m_config.m_max_packet_size >= m_cache_in_buffer.size(), false, "Bad m_cache_in_buffer.size()"); - CHECK_AND_ASSERT_MES(m_config.m_max_packet_size - m_cache_in_buffer.size() >= m_fragment_buffer.size(), false, "Bad m_cache_in_buffer.size() + m_fragment_buffer.size()"); + const uint64_t max_packet_size = m_max_packet_size; + CHECK_AND_ASSERT_MES(max_packet_size >= m_cache_in_buffer.size(), false, "Bad m_cache_in_buffer.size()"); + CHECK_AND_ASSERT_MES(max_packet_size - m_cache_in_buffer.size() >= m_fragment_buffer.size(), false, "Bad m_cache_in_buffer.size() + m_fragment_buffer.size()"); // flipped to subtraction; prevent overflow since m_max_packet_size is variable and public - if(cb > m_config.m_max_packet_size - m_cache_in_buffer.size() - m_fragment_buffer.size()) + if(cb > max_packet_size - m_cache_in_buffer.size() - m_fragment_buffer.size()) { - MWARNING(m_connection_context << "Maximum packet size exceed!, m_max_packet_size = " << m_config.m_max_packet_size + MWARNING(m_connection_context << "Maximum packet size exceed!, m_max_packet_size = " << max_packet_size << ", packet received " << m_cache_in_buffer.size() + cb << ", connection will be closed."); return false; @@ -519,6 +523,10 @@ public: m_current_head.m_command, buff_to_invoke, return_buff, m_connection_context ); + // peer_id remains unset if dropped + if (m_current_head.m_command == m_connection_context.handshake_command() && m_connection_context.handshake_complete()) + m_max_packet_size = m_config.m_max_packet_size; + bucket_head2 head = make_header(m_current_head.m_command, return_buff.size(), LEVIN_PACKET_RESPONSE, false); head.m_return_code = SWAP32LE(return_code); return_buff.insert(0, reinterpret_cast<const char*>(&head), sizeof(head)); @@ -577,9 +585,9 @@ public: m_cache_in_buffer.erase(sizeof(bucket_head2)); m_state = stream_state_body; m_oponent_protocol_ver = m_current_head.m_protocol_version; - if(m_current_head.m_cb > m_config.m_max_packet_size) + if(m_current_head.m_cb > max_packet_size) { - LOG_ERROR_CC(m_connection_context, "Maximum packet size exceed!, m_max_packet_size = " << m_config.m_max_packet_size + LOG_ERROR_CC(m_connection_context, "Maximum packet size exceed!, m_max_packet_size = " << max_packet_size << ", packet header received " << m_current_head.m_cb << ", connection will be closed."); return false; @@ -634,6 +642,9 @@ public: boost::interprocess::ipcdetail::atomic_write32(&m_invoke_buf_ready, 0); CRITICAL_REGION_BEGIN(m_invoke_response_handlers_lock); + if (command == m_connection_context.handshake_command()) + m_max_packet_size = m_config.m_max_packet_size; + if(!send_message(command, in_buff, LEVIN_PACKET_REQUEST, true)) { LOG_ERROR_CC(m_connection_context, "Failed to do_send"); @@ -675,6 +686,9 @@ public: boost::interprocess::ipcdetail::atomic_write32(&m_invoke_buf_ready, 0); + if (command == m_connection_context.handshake_command()) + m_max_packet_size = m_config.m_max_packet_size; + if (!send_message(command, in_buff, LEVIN_PACKET_REQUEST, true)) { LOG_ERROR_CC(m_connection_context, "Failed to send request"); |