1 /*- 2 * BSD LICENSE 3 * 4 * Copyright (c) Intel Corporation. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef SPDK_JSONRPC_INTERNAL_H_ 35 #define SPDK_JSONRPC_INTERNAL_H_ 36 37 #include "spdk/stdinc.h" 38 39 #include "spdk/env.h" 40 #include "spdk/jsonrpc.h" 41 42 #include "spdk_internal/log.h" 43 44 #define SPDK_JSONRPC_RECV_BUF_SIZE (32 * 1024) 45 #define SPDK_JSONRPC_SEND_BUF_SIZE_INIT (32 * 1024) 46 #define SPDK_JSONRPC_SEND_BUF_SIZE_MAX (32 * 1024 * 1024) 47 #define SPDK_JSONRPC_ID_MAX_LEN 128 48 #define SPDK_JSONRPC_MAX_CONNS 64 49 #define SPDK_JSONRPC_MAX_VALUES 1024 50 51 struct spdk_jsonrpc_request { 52 struct spdk_jsonrpc_server_conn *conn; 53 54 /* Copy of request id value */ 55 struct spdk_json_val id; 56 uint8_t id_data[SPDK_JSONRPC_ID_MAX_LEN]; 57 58 /* Total space allocated for send_buf */ 59 size_t send_buf_size; 60 61 /* Number of bytes used in send_buf (<= send_buf_size) */ 62 size_t send_len; 63 64 size_t send_offset; 65 66 uint8_t *send_buf; 67 }; 68 69 struct spdk_jsonrpc_server_conn { 70 struct spdk_jsonrpc_server *server; 71 int sockfd; 72 bool closed; 73 struct spdk_json_val values[SPDK_JSONRPC_MAX_VALUES]; 74 size_t recv_len; 75 uint8_t recv_buf[SPDK_JSONRPC_RECV_BUF_SIZE]; 76 uint32_t outstanding_requests; 77 struct spdk_ring *send_queue; 78 struct spdk_jsonrpc_request *send_request; 79 }; 80 81 struct spdk_jsonrpc_server { 82 int sockfd; 83 spdk_jsonrpc_handle_request_fn handle_request; 84 struct spdk_jsonrpc_server_conn conns[SPDK_JSONRPC_MAX_CONNS]; 85 int num_conns; 86 }; 87 88 /* jsonrpc_server_tcp */ 89 void spdk_jsonrpc_server_handle_request(struct spdk_jsonrpc_request *request, 90 const struct spdk_json_val *method, 91 const struct spdk_json_val *params); 92 void spdk_jsonrpc_server_handle_error(struct spdk_jsonrpc_request *request, int error); 93 void spdk_jsonrpc_server_send_response(struct spdk_jsonrpc_server_conn *conn, 94 struct spdk_jsonrpc_request *request); 95 96 /* jsonrpc_server */ 97 int spdk_jsonrpc_parse_request(struct spdk_jsonrpc_server_conn *conn, void *json, size_t size); 98 void spdk_jsonrpc_free_request(struct spdk_jsonrpc_request *request); 99 100 #endif 101