1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2008 Isilon Inc http://www.isilon.com/ 5 * Authors: Doug Rabson <dfr@rabson.org> 6 * Developed with Red Inc: Alfred Perlstein <alfred@freebsd.org> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #include <sys/param.h> 31 #include <sys/kernel.h> 32 #include <sys/kobj.h> 33 #include <sys/lock.h> 34 #include <sys/malloc.h> 35 #include <sys/mutex.h> 36 37 #include <kgssapi/gssapi.h> 38 #include <kgssapi/gssapi_impl.h> 39 40 #include "gssd.h" 41 42 OM_uint32 43 gss_ip_to_dns(OM_uint32 *minor_status, 44 char *ip_addr, 45 char *dns_name) 46 { 47 struct ip_to_dns_res res; 48 struct ip_to_dns_args args; 49 enum clnt_stat stat; 50 CLIENT *cl; 51 52 *minor_status = 0; 53 cl = kgss_gssd_client(); 54 if (cl == NULL) 55 return (GSS_S_FAILURE); 56 57 args.ip_addr.ip_addr_len = strlen(ip_addr); 58 args.ip_addr.ip_addr_val = mem_alloc(args.ip_addr.ip_addr_len); 59 memcpy(args.ip_addr.ip_addr_val, ip_addr, args.ip_addr.ip_addr_len); 60 61 bzero(&res, sizeof(res)); 62 stat = gssd_ip_to_dns_1(&args, &res, cl); 63 CLNT_RELEASE(cl); 64 if (stat != RPC_SUCCESS) { 65 *minor_status = stat; 66 return (GSS_S_FAILURE); 67 } 68 69 if (res.major_status != GSS_S_COMPLETE) { 70 *minor_status = res.minor_status; 71 return (res.major_status); 72 } 73 74 if (res.dns_name.dns_name_len == 0 || 75 res.dns_name.dns_name_len >= NI_MAXHOST) { 76 *minor_status = 0; 77 return (GSS_S_FAILURE); 78 } 79 80 memcpy(dns_name, res.dns_name.dns_name_val, res.dns_name.dns_name_len); 81 dns_name[res.dns_name.dns_name_len] = '\0'; 82 83 return (GSS_S_COMPLETE); 84 } 85