1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2021 Rick Macklem 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 */ 27 28 /* 29 * Functions in rpc.tlscommon.c used by both rpc.tlsservd.c and rpc.tlsclntd.c. 30 */ 31 int rpctls_gethost(int s, struct sockaddr *sad, 32 char *hostip, size_t hostlen); 33 int rpctls_checkhost(struct sockaddr *sad, X509 *cert, 34 unsigned int wildcard); 35 int rpctls_loadcrlfile(SSL_CTX *ctx); 36 void rpctls_checkcrl(void); 37 void rpctls_verbose_out(const char *fmt, ...); 38 void rpctls_svc_run(void); 39 40 /* 41 * A linked list of all current "SSL *"s and socket "fd"s 42 * for kernel RPC TLS connections is maintained. 43 * The "refno" field is a unique 64bit value used to 44 * identify which entry a kernel RPC upcall refers to. 45 */ 46 LIST_HEAD(ssl_list, ssl_entry); 47 struct ssl_entry { 48 LIST_ENTRY(ssl_entry) next; 49 uint64_t refno; 50 int s; 51 bool shutoff; 52 SSL *ssl; 53 X509 *cert; 54 }; 55 56 /* Global variables shared between rpc.tlscommon.c and the daemons. */ 57 extern int rpctls_debug_level; 58 extern bool rpctls_verbose; 59 extern SSL_CTX *rpctls_ctx; 60 extern const char *rpctls_verify_cafile; 61 extern const char *rpctls_verify_capath; 62 extern char *rpctls_crlfile; 63 extern bool rpctls_cert; 64 extern bool rpctls_gothup; 65 extern struct ssl_list rpctls_ssllist; 66 67