1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 28 */ 29 30 /* 31 * Functions in rpc.tlscommon.c used by both rpc.tlsservd.c and rpc.tlsclntd.c. 32 */ 33 int rpctls_gethost(int s, struct sockaddr *sad, 34 char *hostip, size_t hostlen); 35 int rpctls_checkhost(struct sockaddr *sad, X509 *cert, 36 unsigned int wildcard); 37 int rpctls_loadcrlfile(SSL_CTX *ctx); 38 void rpctls_checkcrl(void); 39 void rpctls_verbose_out(const char *fmt, ...); 40 void rpctls_svc_run(void); 41 42 /* 43 * A linked list of all current "SSL *"s and socket "fd"s 44 * for kernel RPC TLS connections is maintained. 45 * The "refno" field is a unique 64bit value used to 46 * identify which entry a kernel RPC upcall refers to. 47 */ 48 LIST_HEAD(ssl_list, ssl_entry); 49 struct ssl_entry { 50 LIST_ENTRY(ssl_entry) next; 51 uint64_t refno; 52 int s; 53 bool shutoff; 54 SSL *ssl; 55 X509 *cert; 56 }; 57 58 /* Global variables shared between rpc.tlscommon.c and the daemons. */ 59 extern int rpctls_debug_level; 60 extern bool rpctls_verbose; 61 extern SSL_CTX *rpctls_ctx; 62 extern const char *rpctls_verify_cafile; 63 extern const char *rpctls_verify_capath; 64 extern char *rpctls_crlfile; 65 extern bool rpctls_cert; 66 extern bool rpctls_gothup; 67 extern struct ssl_list rpctls_ssllist; 68 69