1 | /* $NetBSD: dnssec.c,v 1.5 2009/03/12 10:57:26 tteras Exp $ */ |
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2 | |
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3 | /* $KAME: dnssec.c,v 1.2 2001/08/05 18:46:07 itojun Exp $ */ |
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4 | |
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5 | /* |
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6 | * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions |
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11 | * are met: |
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12 | * 1. Redistributions of source code must retain the above copyright |
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13 | * notice, this list of conditions and the following disclaimer. |
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14 | * 2. Redistributions in binary form must reproduce the above copyright |
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15 | * notice, this list of conditions and the following disclaimer in the |
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16 | * documentation and/or other materials provided with the distribution. |
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17 | * 3. Neither the name of the project nor the names of its contributors |
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18 | * may be used to endorse or promote products derived from this software |
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19 | * without specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND |
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22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE |
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25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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31 | * SUCH DAMAGE. |
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32 | */ |
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33 | |
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34 | #include "config.h" |
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35 | |
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36 | #include <sys/types.h> |
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37 | #include <sys/param.h> |
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38 | #include <stdlib.h> |
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39 | #include <string.h> |
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40 | |
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41 | #include "var.h" |
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42 | #include "vmbuf.h" |
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43 | #include "misc.h" |
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44 | #include "plog.h" |
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45 | #include "debug.h" |
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46 | |
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47 | #include "isakmp_var.h" |
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48 | #include "isakmp.h" |
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49 | #include "ipsec_doi.h" |
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50 | #include "oakley.h" |
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51 | #include "netdb_dnssec.h" |
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52 | #include "strnames.h" |
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53 | #include "dnssec.h" |
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54 | #include "gcmalloc.h" |
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55 | |
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56 | extern int h_errno; |
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57 | |
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58 | vchar_t * |
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59 | dnssec_getcert(id) |
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60 | vchar_t *id; |
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61 | { |
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62 | vchar_t *cert = NULL; |
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63 | struct certinfo *res = NULL; |
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64 | struct ipsecdoi_id_b *id_b; |
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65 | int type; |
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66 | char *name = NULL; |
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67 | int namelen; |
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68 | int error; |
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69 | |
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70 | id_b = (struct ipsecdoi_id_b *)id->v; |
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71 | |
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72 | namelen = id->l - sizeof(*id_b); |
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73 | name = racoon_malloc(namelen + 1); |
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74 | if (!name) { |
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75 | plog(LLV_ERROR, LOCATION, NULL, |
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76 | "failed to get buffer.\n"); |
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77 | return NULL; |
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78 | } |
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79 | memcpy(name, id_b + 1, namelen); |
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80 | name[namelen] = '\0'; |
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81 | |
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82 | switch (id_b->type) { |
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83 | case IPSECDOI_ID_FQDN: |
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84 | error = getcertsbyname(name, &res); |
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85 | if (error != 0) { |
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86 | plog(LLV_ERROR, LOCATION, NULL, |
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87 | "getcertsbyname(\"%s\") failed.\n", name); |
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88 | goto err; |
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89 | } |
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90 | break; |
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91 | case IPSECDOI_ID_IPV4_ADDR: |
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92 | case IPSECDOI_ID_IPV6_ADDR: |
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93 | /* XXX should be processed to query PTR ? */ |
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94 | default: |
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95 | plog(LLV_ERROR, LOCATION, NULL, |
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96 | "inpropper ID type passed %s " |
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97 | "though getcert method is dnssec.\n", |
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98 | s_ipsecdoi_ident(id_b->type)); |
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99 | goto err; |
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100 | } |
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101 | |
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102 | /* check response */ |
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103 | if (res->ci_next != NULL) { |
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104 | plog(LLV_WARNING, LOCATION, NULL, |
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105 | "not supported multiple CERT RR.\n"); |
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106 | } |
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107 | switch (res->ci_type) { |
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108 | case DNSSEC_TYPE_PKIX: |
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109 | /* XXX is it enough condition to set this type ? */ |
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110 | type = ISAKMP_CERT_X509SIGN; |
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111 | break; |
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112 | default: |
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113 | plog(LLV_ERROR, LOCATION, NULL, |
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114 | "not supported CERT RR type %d.\n", res->ci_type); |
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115 | goto err; |
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116 | } |
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117 | |
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118 | /* create cert holder */ |
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119 | cert = vmalloc(res->ci_certlen + 1); |
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120 | if (cert == NULL) { |
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121 | plog(LLV_ERROR, LOCATION, NULL, |
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122 | "failed to get cert buffer.\n"); |
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123 | goto err; |
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124 | } |
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125 | cert->v[0] = type; |
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126 | memcpy(&cert->v[1], res->ci_cert, res->ci_certlen); |
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127 | |
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128 | plog(LLV_DEBUG, LOCATION, NULL, "created CERT payload:\n"); |
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129 | plogdump(LLV_DEBUG, cert->v, cert->l); |
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130 | |
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131 | err: |
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132 | if (name) |
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133 | racoon_free(name); |
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134 | if (res) |
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135 | freecertinfo(res); |
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136 | return cert; |
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137 | } |
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