contrib/bind/bin/named/tkeyconf.c

   1 /*
   2  * Copyright (C) 2004-2007  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2001  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and/or distribute this software for any
   6  * purpose with or without fee is hereby granted, provided that the above
   7  * copyright notice and this permission notice appear in all copies.
   8  *
   9  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
  10  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  11  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
  12  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
  13  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  14  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  15  * PERFORMANCE OF THIS SOFTWARE.
  16  */
  17
  18 /* $Id: tkeyconf.c,v 1.29 2007/06/19 23:46:59 tbox Exp $ */
  19
  20 /*! \file */
  21
  22 #include <config.h>
  23
  24 #include <isc/buffer.h>
  25 #include <isc/string.h>         /* Required for HP/UX (and others?) */
  26 #include <isc/mem.h>
  27
  28 #include <isccfg/cfg.h>
  29
  30 #include <dns/fixedname.h>
  31 #include <dns/keyvalues.h>
  32 #include <dns/name.h>
  33 #include <dns/tkey.h>
  34
  35 #include <dst/gssapi.h>
  36
  37 #include <named/tkeyconf.h>
  38
  39 #define RETERR(x) do { \
  40         result = (x); \
  41         if (result != ISC_R_SUCCESS) \
  42                 goto failure; \
  43         } while (0)
  44
  45 #include<named/log.h>
  46 #define LOG(msg) \
  47         isc_log_write(ns_g_lctx, \
  48         NS_LOGCATEGORY_GENERAL, \
  49         NS_LOGMODULE_SERVER, \
  50         ISC_LOG_ERROR, \
  51         "%s", msg)
  52
  53 isc_result_t
  54 ns_tkeyctx_fromconfig(const cfg_obj_t *options, isc_mem_t *mctx,
  55                       isc_entropy_t *ectx, dns_tkeyctx_t **tctxp)
  56 {
  57         isc_result_t result;
  58         dns_tkeyctx_t *tctx = NULL;
  59         const char *s;
  60         isc_uint32_t n;
  61         dns_fixedname_t fname;
  62         dns_name_t *name;
  63         isc_buffer_t b;
  64         const cfg_obj_t *obj;
  65         int type;
  66
  67         result = dns_tkeyctx_create(mctx, ectx, &tctx);
  68         if (result != ISC_R_SUCCESS)
  69                 return (result);
  70
  71         obj = NULL;
  72         result = cfg_map_get(options, "tkey-dhkey", &obj);
  73         if (result == ISC_R_SUCCESS) {
  74                 s = cfg_obj_asstring(cfg_tuple_get(obj, "name"));
  75                 n = cfg_obj_asuint32(cfg_tuple_get(obj, "keyid"));
  76                 isc_buffer_init(&b, s, strlen(s));
  77                 isc_buffer_add(&b, strlen(s));
  78                 dns_fixedname_init(&fname);
  79                 name = dns_fixedname_name(&fname);
  80                 RETERR(dns_name_fromtext(name, &b, dns_rootname,
  81                                          ISC_FALSE, NULL));
  82                 type = DST_TYPE_PUBLIC|DST_TYPE_PRIVATE|DST_TYPE_KEY;
  83                 RETERR(dst_key_fromfile(name, (dns_keytag_t) n, DNS_KEYALG_DH,
  84                                         type, NULL, mctx, &tctx->dhkey));
  85         }
  86
  87         obj = NULL;
  88         result = cfg_map_get(options, "tkey-domain", &obj);
  89         if (result == ISC_R_SUCCESS) {
  90                 s = cfg_obj_asstring(obj);
  91                 isc_buffer_init(&b, s, strlen(s));
  92                 isc_buffer_add(&b, strlen(s));
  93                 dns_fixedname_init(&fname);
  94                 name = dns_fixedname_name(&fname);
  95                 RETERR(dns_name_fromtext(name, &b, dns_rootname, ISC_FALSE,
  96                                          NULL));
  97                 tctx->domain = isc_mem_get(mctx, sizeof(dns_name_t));
  98                 if (tctx->domain == NULL) {
  99                         result = ISC_R_NOMEMORY;
 100                         goto failure;
 101                 }
 102                 dns_name_init(tctx->domain, NULL);
 103                 RETERR(dns_name_dup(name, mctx, tctx->domain));
 104         }
 105
 106         obj = NULL;
 107         result = cfg_map_get(options, "tkey-gssapi-credential", &obj);
 108         if (result == ISC_R_SUCCESS) {
 109                 s = cfg_obj_asstring(obj);
 110
 111                 isc_buffer_init(&b, s, strlen(s));
 112                 isc_buffer_add(&b, strlen(s));
 113                 dns_fixedname_init(&fname);
 114                 name = dns_fixedname_name(&fname);
 115                 RETERR(dns_name_fromtext(name, &b, dns_rootname, ISC_FALSE,
 116                                          NULL));
 117                 RETERR(dst_gssapi_acquirecred(name, ISC_FALSE,
 118                                               &tctx->gsscred));
 119         }
 120
 121         *tctxp = tctx;
 122         return (ISC_R_SUCCESS);
 123
 124  failure:
 125         dns_tkeyctx_destroy(&tctx);
 126         return (result);
 127 }
 128