contrib/bind-9.3/bin/named/tkeyconf.c

   1 /*
   2  * Copyright (C) 2004  Internet Systems Consortium, Inc. ("ISC")
   3  * Copyright (C) 1999-2001  Internet Software Consortium.
   4  *
   5  * Permission to use, copy, modify, and 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 1.19.208.2 2004/06/11 00:30:51 marka Exp $ */
  19
  20 #include <config.h>
  21
  22 #include <isc/buffer.h>
  23 #include <isc/string.h>         /* Required for HP/UX (and others?) */
  24 #include <isc/mem.h>
  25
  26 #include <isccfg/cfg.h>
  27
  28 #include <dns/fixedname.h>
  29 #include <dns/keyvalues.h>
  30 #include <dns/name.h>
  31 #include <dns/tkey.h>
  32
  33 #include <dst/gssapi.h>
  34
  35 #include <named/tkeyconf.h>
  36
  37 #define RETERR(x) do { \
  38         result = (x); \
  39         if (result != ISC_R_SUCCESS) \
  40                 goto failure; \
  41         } while (0)
  42
  43
  44 isc_result_t
  45 ns_tkeyctx_fromconfig(cfg_obj_t *options, isc_mem_t *mctx, isc_entropy_t *ectx,
  46                        dns_tkeyctx_t **tctxp)
  47 {
  48         isc_result_t result;
  49         dns_tkeyctx_t *tctx = NULL;
  50         char *s;
  51         isc_uint32_t n;
  52         dns_fixedname_t fname;
  53         dns_name_t *name;
  54         isc_buffer_t b;
  55         cfg_obj_t *obj;
  56         int type;
  57
  58         result = dns_tkeyctx_create(mctx, ectx, &tctx);
  59         if (result != ISC_R_SUCCESS)
  60                 return (result);
  61
  62         obj = NULL;
  63         result = cfg_map_get(options, "tkey-dhkey", &obj);
  64         if (result == ISC_R_SUCCESS) {
  65                 s = cfg_obj_asstring(cfg_tuple_get(obj, "name"));
  66                 n = cfg_obj_asuint32(cfg_tuple_get(obj, "keyid"));
  67                 isc_buffer_init(&b, s, strlen(s));
  68                 isc_buffer_add(&b, strlen(s));
  69                 dns_fixedname_init(&fname);
  70                 name = dns_fixedname_name(&fname);
  71                 RETERR(dns_name_fromtext(name, &b, dns_rootname,
  72                                          ISC_FALSE, NULL));
  73                 type = DST_TYPE_PUBLIC|DST_TYPE_PRIVATE|DST_TYPE_KEY;
  74                 RETERR(dst_key_fromfile(name, (dns_keytag_t) n, DNS_KEYALG_DH,
  75                                         type, NULL, mctx, &tctx->dhkey));
  76         }
  77
  78         obj = NULL;
  79         result = cfg_map_get(options, "tkey-domain", &obj);
  80         if (result == ISC_R_SUCCESS) {
  81                 s = cfg_obj_asstring(obj);
  82                 isc_buffer_init(&b, s, strlen(s));
  83                 isc_buffer_add(&b, strlen(s));
  84                 dns_fixedname_init(&fname);
  85                 name = dns_fixedname_name(&fname);
  86                 RETERR(dns_name_fromtext(name, &b, dns_rootname, ISC_FALSE,
  87                                          NULL));
  88                 tctx->domain = isc_mem_get(mctx, sizeof(dns_name_t));
  89                 if (tctx->domain == NULL) {
  90                         result = ISC_R_NOMEMORY;
  91                         goto failure;
  92                 }
  93                 dns_name_init(tctx->domain, NULL);
  94                 RETERR(dns_name_dup(name, mctx, tctx->domain));
  95         }
  96
  97         obj = NULL;
  98         result = cfg_map_get(options, "tkey-gssapi-credential", &obj);
  99         if (result == ISC_R_SUCCESS) {
 100                 s = cfg_obj_asstring(obj);
 101                 isc_buffer_init(&b, s, strlen(s));
 102                 isc_buffer_add(&b, strlen(s));
 103                 dns_fixedname_init(&fname);
 104                 name = dns_fixedname_name(&fname);
 105                 RETERR(dns_name_fromtext(name, &b, dns_rootname, ISC_FALSE,
 106                                          NULL));
 107                 RETERR(dst_gssapi_acquirecred(name, ISC_FALSE,
 108                                               &tctx->gsscred));
 109         }
 110
 111         *tctxp = tctx;
 112         return (ISC_R_SUCCESS);
 113
 114  failure:
 115         dns_tkeyctx_destroy(&tctx);
 116         return (result);
 117 }
 118