1 | /* $NetBSD: policy_parse.y,v 1.11 2009/02/16 18:36:21 tteras Exp $ */ |
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2 | |
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3 | /* $KAME: policy_parse.y,v 1.21 2003/12/12 08:01:26 itojun Exp $ */ |
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4 | |
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5 | /* |
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6 | * Copyright (C) 1995, 1996, 1997, 1998, and 1999 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 | /* |
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35 | * IN/OUT bound policy configuration take place such below: |
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36 | * in <priority> <policy> |
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37 | * out <priority> <policy> |
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38 | * |
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39 | * <priority> is one of the following: |
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40 | * priority <signed int> where the integer is an offset from the default |
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41 | * priority, where negative numbers indicate lower |
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42 | * priority (towards end of list) and positive numbers |
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43 | * indicate higher priority (towards beginning of list) |
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44 | * |
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45 | * priority {low,def,high} {+,-} <unsigned int> where low and high are |
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46 | * constants which are closer |
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47 | * to the end of the list and |
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48 | * beginning of the list, |
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49 | * respectively |
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50 | * |
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51 | * <policy> is one of following: |
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52 | * "discard", "none", "ipsec <requests>", "entrust", "bypass", |
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53 | * |
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54 | * The following requests are accepted as <requests>: |
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55 | * |
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56 | * protocol/mode/src-dst/level |
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57 | * protocol/mode/src-dst parsed as protocol/mode/src-dst/default |
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58 | * protocol/mode/src-dst/ parsed as protocol/mode/src-dst/default |
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59 | * protocol/transport parsed as protocol/mode/any-any/default |
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60 | * protocol/transport//level parsed as protocol/mode/any-any/level |
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61 | * |
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62 | * You can concatenate these requests with either ' '(single space) or '\n'. |
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63 | */ |
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64 | |
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65 | %{ |
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66 | #ifdef __rtems__ |
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67 | #include <machine/rtems-bsd-user-space.h> |
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68 | #endif /* __rtems__ */ |
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69 | #ifdef HAVE_CONFIG_H |
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70 | #include "config.h" |
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71 | #endif |
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72 | |
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73 | #include <sys/types.h> |
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74 | #include <sys/param.h> |
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75 | #include <sys/socket.h> |
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76 | |
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77 | #include <netinet/in.h> |
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78 | #include PATH_IPSEC_H |
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79 | |
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80 | #include <stdlib.h> |
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81 | #include <stdio.h> |
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82 | #include <string.h> |
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83 | #include <netdb.h> |
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84 | |
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85 | #include <errno.h> |
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86 | |
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87 | #include "config.h" |
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88 | |
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89 | #include "ipsec_strerror.h" |
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90 | #include "libpfkey.h" |
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91 | |
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92 | #ifndef INT32_MAX |
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93 | #define INT32_MAX (0xffffffff) |
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94 | #endif |
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95 | |
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96 | #ifndef INT32_MIN |
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97 | #define INT32_MIN (-INT32_MAX-1) |
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98 | #endif |
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99 | |
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100 | #define ATOX(c) \ |
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101 | (isdigit(c) ? (c - '0') : (isupper(c) ? (c - 'A' + 10) : (c - 'a' + 10) )) |
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102 | |
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103 | static u_int8_t *pbuf = NULL; /* sadb_x_policy buffer */ |
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104 | static int tlen = 0; /* total length of pbuf */ |
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105 | static int offset = 0; /* offset of pbuf */ |
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106 | static int p_dir, p_type, p_protocol, p_mode, p_level, p_reqid; |
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107 | static u_int32_t p_priority = 0; |
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108 | static long p_priority_offset = 0; |
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109 | static struct sockaddr *p_src = NULL; |
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110 | static struct sockaddr *p_dst = NULL; |
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111 | |
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112 | struct _val; |
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113 | extern void yyerror __P((char *msg)); |
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114 | static struct sockaddr *parse_sockaddr __P((struct _val *addrbuf, |
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115 | struct _val *portbuf)); |
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116 | static int rule_check __P((void)); |
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117 | static int init_x_policy __P((void)); |
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118 | static int set_x_request __P((struct sockaddr *, struct sockaddr *)); |
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119 | static int set_sockaddr __P((struct sockaddr *)); |
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120 | static void policy_parse_request_init __P((void)); |
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121 | static void *policy_parse __P((const char *, int)); |
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122 | |
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123 | extern void __policy__strbuffer__init__ __P((const char *)); |
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124 | extern void __policy__strbuffer__free__ __P((void)); |
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125 | extern int yyparse __P((void)); |
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126 | extern int yylex __P((void)); |
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127 | |
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128 | extern char *__libipsectext; /*XXX*/ |
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129 | |
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130 | %} |
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131 | |
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132 | %union { |
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133 | u_int num; |
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134 | u_int32_t num32; |
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135 | struct _val { |
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136 | int len; |
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137 | char *buf; |
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138 | } val; |
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139 | } |
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140 | |
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141 | %token DIR |
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142 | %token PRIORITY PLUS |
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143 | %token <num32> PRIO_BASE |
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144 | %token <val> PRIO_OFFSET |
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145 | %token ACTION PROTOCOL MODE LEVEL LEVEL_SPECIFY IPADDRESS PORT |
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146 | %token ME ANY |
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147 | %token SLASH HYPHEN |
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148 | %type <num> DIR PRIORITY ACTION PROTOCOL MODE LEVEL |
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149 | %type <val> IPADDRESS LEVEL_SPECIFY PORT |
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150 | |
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151 | %% |
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152 | policy_spec |
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153 | : DIR ACTION |
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154 | { |
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155 | p_dir = $1; |
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156 | p_type = $2; |
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157 | |
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158 | #ifdef HAVE_PFKEY_POLICY_PRIORITY |
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159 | p_priority = PRIORITY_DEFAULT; |
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160 | #else |
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161 | p_priority = 0; |
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162 | #endif |
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163 | |
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164 | if (init_x_policy()) |
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165 | return -1; |
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166 | } |
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167 | rules |
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168 | | DIR PRIORITY PRIO_OFFSET ACTION |
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169 | { |
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170 | p_dir = $1; |
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171 | p_type = $4; |
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172 | p_priority_offset = -atol($3.buf); |
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173 | |
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174 | errno = 0; |
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175 | if (errno != 0 || p_priority_offset < INT32_MIN) |
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176 | { |
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177 | __ipsec_errcode = EIPSEC_INVAL_PRIORITY_OFFSET; |
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178 | return -1; |
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179 | } |
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180 | |
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181 | p_priority = PRIORITY_DEFAULT + (u_int32_t) p_priority_offset; |
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182 | |
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183 | if (init_x_policy()) |
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184 | return -1; |
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185 | } |
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186 | rules |
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187 | | DIR PRIORITY HYPHEN PRIO_OFFSET ACTION |
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188 | { |
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189 | p_dir = $1; |
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190 | p_type = $5; |
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191 | |
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192 | errno = 0; |
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193 | p_priority_offset = atol($4.buf); |
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194 | |
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195 | if (errno != 0 || p_priority_offset > INT32_MAX) |
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196 | { |
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197 | __ipsec_errcode = EIPSEC_INVAL_PRIORITY_OFFSET; |
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198 | return -1; |
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199 | } |
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200 | |
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201 | /* negative input value means lower priority, therefore higher |
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202 | actual value so that is closer to the end of the list */ |
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203 | p_priority = PRIORITY_DEFAULT + (u_int32_t) p_priority_offset; |
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204 | |
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205 | if (init_x_policy()) |
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206 | return -1; |
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207 | } |
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208 | rules |
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209 | | DIR PRIORITY PRIO_BASE ACTION |
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210 | { |
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211 | p_dir = $1; |
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212 | p_type = $4; |
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213 | |
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214 | p_priority = $3; |
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215 | |
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216 | if (init_x_policy()) |
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217 | return -1; |
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218 | } |
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219 | rules |
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220 | | DIR PRIORITY PRIO_BASE PLUS PRIO_OFFSET ACTION |
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221 | { |
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222 | p_dir = $1; |
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223 | p_type = $6; |
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224 | |
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225 | errno = 0; |
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226 | p_priority_offset = atol($5.buf); |
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227 | |
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228 | if (errno != 0 || p_priority_offset > PRIORITY_OFFSET_NEGATIVE_MAX) |
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229 | { |
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230 | __ipsec_errcode = EIPSEC_INVAL_PRIORITY_BASE_OFFSET; |
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231 | return -1; |
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232 | } |
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233 | |
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234 | /* adding value means higher priority, therefore lower |
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235 | actual value so that is closer to the beginning of the list */ |
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236 | p_priority = $3 - (u_int32_t) p_priority_offset; |
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237 | |
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238 | if (init_x_policy()) |
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239 | return -1; |
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240 | } |
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241 | rules |
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242 | | DIR PRIORITY PRIO_BASE HYPHEN PRIO_OFFSET ACTION |
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243 | { |
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244 | p_dir = $1; |
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245 | p_type = $6; |
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246 | |
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247 | errno = 0; |
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248 | p_priority_offset = atol($5.buf); |
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249 | |
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250 | if (errno != 0 || p_priority_offset > PRIORITY_OFFSET_POSITIVE_MAX) |
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251 | { |
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252 | __ipsec_errcode = EIPSEC_INVAL_PRIORITY_BASE_OFFSET; |
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253 | return -1; |
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254 | } |
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255 | |
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256 | /* subtracting value means lower priority, therefore higher |
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257 | actual value so that is closer to the end of the list */ |
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258 | p_priority = $3 + (u_int32_t) p_priority_offset; |
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259 | |
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260 | if (init_x_policy()) |
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261 | return -1; |
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262 | } |
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263 | rules |
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264 | | DIR |
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265 | { |
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266 | p_dir = $1; |
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267 | p_type = 0; /* ignored it by kernel */ |
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268 | |
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269 | p_priority = 0; |
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270 | |
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271 | if (init_x_policy()) |
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272 | return -1; |
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273 | } |
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274 | ; |
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275 | |
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276 | rules |
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277 | : /*NOTHING*/ |
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278 | | rules rule { |
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279 | if (rule_check() < 0) |
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280 | return -1; |
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281 | |
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282 | if (set_x_request(p_src, p_dst) < 0) |
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283 | return -1; |
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284 | |
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285 | policy_parse_request_init(); |
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286 | } |
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287 | ; |
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288 | |
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289 | rule |
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290 | : protocol SLASH mode SLASH addresses SLASH level |
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291 | | protocol SLASH mode SLASH addresses SLASH |
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292 | | protocol SLASH mode SLASH addresses |
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293 | | protocol SLASH mode SLASH |
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294 | | protocol SLASH mode SLASH SLASH level |
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295 | | protocol SLASH mode |
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296 | | protocol SLASH { |
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297 | __ipsec_errcode = EIPSEC_FEW_ARGUMENTS; |
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298 | return -1; |
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299 | } |
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300 | | protocol { |
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301 | __ipsec_errcode = EIPSEC_FEW_ARGUMENTS; |
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302 | return -1; |
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303 | } |
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304 | ; |
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305 | |
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306 | protocol |
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307 | : PROTOCOL { p_protocol = $1; } |
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308 | ; |
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309 | |
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310 | mode |
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311 | : MODE { p_mode = $1; } |
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312 | ; |
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313 | |
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314 | level |
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315 | : LEVEL { |
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316 | p_level = $1; |
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317 | p_reqid = 0; |
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318 | } |
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319 | | LEVEL_SPECIFY { |
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320 | p_level = IPSEC_LEVEL_UNIQUE; |
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321 | p_reqid = atol($1.buf); /* atol() is good. */ |
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322 | } |
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323 | ; |
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324 | |
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325 | addresses |
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326 | : IPADDRESS { |
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327 | p_src = parse_sockaddr(&$1, NULL); |
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328 | if (p_src == NULL) |
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329 | return -1; |
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330 | } |
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331 | HYPHEN |
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332 | IPADDRESS { |
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333 | p_dst = parse_sockaddr(&$4, NULL); |
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334 | if (p_dst == NULL) |
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335 | return -1; |
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336 | } |
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337 | | IPADDRESS PORT { |
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338 | p_src = parse_sockaddr(&$1, &$2); |
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339 | if (p_src == NULL) |
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340 | return -1; |
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341 | } |
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342 | HYPHEN |
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343 | IPADDRESS PORT { |
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344 | p_dst = parse_sockaddr(&$5, &$6); |
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345 | if (p_dst == NULL) |
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346 | return -1; |
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347 | } |
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348 | | ME HYPHEN ANY { |
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349 | if (p_dir != IPSEC_DIR_OUTBOUND) { |
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350 | __ipsec_errcode = EIPSEC_INVAL_DIR; |
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351 | return -1; |
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352 | } |
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353 | } |
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354 | | ANY HYPHEN ME { |
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355 | if (p_dir != IPSEC_DIR_INBOUND) { |
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356 | __ipsec_errcode = EIPSEC_INVAL_DIR; |
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357 | return -1; |
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358 | } |
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359 | } |
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360 | /* |
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361 | | ME HYPHEN ME |
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362 | */ |
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363 | ; |
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364 | |
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365 | %% |
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366 | |
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367 | void |
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368 | yyerror(msg) |
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369 | char *msg; |
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370 | { |
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371 | fprintf(stderr, "libipsec: %s while parsing \"%s\"\n", |
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372 | msg, __libipsectext); |
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373 | |
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374 | return; |
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375 | } |
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376 | |
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377 | static struct sockaddr * |
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378 | parse_sockaddr(addrbuf, portbuf) |
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379 | struct _val *addrbuf; |
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380 | struct _val *portbuf; |
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381 | { |
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382 | struct addrinfo hints, *res; |
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383 | char *addr; |
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384 | char *serv = NULL; |
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385 | int error; |
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386 | struct sockaddr *newaddr = NULL; |
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387 | |
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388 | if ((addr = malloc(addrbuf->len + 1)) == NULL) { |
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389 | yyerror("malloc failed"); |
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390 | __ipsec_set_strerror(strerror(errno)); |
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391 | return NULL; |
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392 | } |
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393 | |
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394 | if (portbuf && ((serv = malloc(portbuf->len + 1)) == NULL)) { |
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395 | free(addr); |
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396 | yyerror("malloc failed"); |
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397 | __ipsec_set_strerror(strerror(errno)); |
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398 | return NULL; |
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399 | } |
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400 | |
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401 | strncpy(addr, addrbuf->buf, addrbuf->len); |
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402 | addr[addrbuf->len] = '\0'; |
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403 | |
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404 | if (portbuf) { |
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405 | strncpy(serv, portbuf->buf, portbuf->len); |
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406 | serv[portbuf->len] = '\0'; |
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407 | } |
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408 | |
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409 | memset(&hints, 0, sizeof(hints)); |
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410 | hints.ai_family = PF_UNSPEC; |
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411 | hints.ai_flags = AI_NUMERICHOST; |
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412 | hints.ai_socktype = SOCK_DGRAM; |
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413 | error = getaddrinfo(addr, serv, &hints, &res); |
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414 | free(addr); |
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415 | if (serv != NULL) |
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416 | free(serv); |
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417 | if (error != 0) { |
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418 | yyerror("invalid IP address"); |
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419 | __ipsec_set_strerror(gai_strerror(error)); |
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420 | return NULL; |
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421 | } |
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422 | |
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423 | if (res->ai_addr == NULL) { |
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424 | yyerror("invalid IP address"); |
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425 | __ipsec_set_strerror(gai_strerror(error)); |
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426 | return NULL; |
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427 | } |
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428 | |
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429 | newaddr = malloc(res->ai_addrlen); |
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430 | if (newaddr == NULL) { |
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431 | __ipsec_errcode = EIPSEC_NO_BUFS; |
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432 | freeaddrinfo(res); |
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433 | return NULL; |
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434 | } |
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435 | memcpy(newaddr, res->ai_addr, res->ai_addrlen); |
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436 | |
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437 | freeaddrinfo(res); |
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438 | |
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439 | __ipsec_errcode = EIPSEC_NO_ERROR; |
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440 | return newaddr; |
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441 | } |
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442 | |
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443 | static int |
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444 | rule_check() |
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445 | { |
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446 | if (p_type == IPSEC_POLICY_IPSEC) { |
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447 | if (p_protocol == IPPROTO_IP) { |
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448 | __ipsec_errcode = EIPSEC_NO_PROTO; |
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449 | return -1; |
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450 | } |
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451 | |
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452 | if (p_mode != IPSEC_MODE_TRANSPORT |
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453 | && p_mode != IPSEC_MODE_TUNNEL) { |
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454 | __ipsec_errcode = EIPSEC_INVAL_MODE; |
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455 | return -1; |
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456 | } |
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457 | |
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458 | if (p_src == NULL && p_dst == NULL) { |
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459 | if (p_mode != IPSEC_MODE_TRANSPORT) { |
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460 | __ipsec_errcode = EIPSEC_INVAL_ADDRESS; |
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461 | return -1; |
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462 | } |
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463 | } |
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464 | else if (p_src->sa_family != p_dst->sa_family) { |
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465 | __ipsec_errcode = EIPSEC_FAMILY_MISMATCH; |
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466 | return -1; |
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467 | } |
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468 | } |
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469 | |
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470 | __ipsec_errcode = EIPSEC_NO_ERROR; |
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471 | return 0; |
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472 | } |
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473 | |
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474 | static int |
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475 | init_x_policy() |
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476 | { |
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477 | struct sadb_x_policy *p; |
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478 | |
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479 | if (pbuf) { |
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480 | free(pbuf); |
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481 | tlen = 0; |
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482 | } |
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483 | pbuf = malloc(sizeof(struct sadb_x_policy)); |
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484 | if (pbuf == NULL) { |
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485 | __ipsec_errcode = EIPSEC_NO_BUFS; |
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486 | return -1; |
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487 | } |
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488 | tlen = sizeof(struct sadb_x_policy); |
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489 | |
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490 | memset(pbuf, 0, tlen); |
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491 | p = (struct sadb_x_policy *)pbuf; |
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492 | p->sadb_x_policy_len = 0; /* must update later */ |
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493 | p->sadb_x_policy_exttype = SADB_X_EXT_POLICY; |
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494 | p->sadb_x_policy_type = p_type; |
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495 | p->sadb_x_policy_dir = p_dir; |
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496 | p->sadb_x_policy_id = 0; |
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497 | #ifdef HAVE_PFKEY_POLICY_PRIORITY |
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498 | p->sadb_x_policy_priority = p_priority; |
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499 | #else |
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500 | /* fail if given a priority and libipsec was not compiled with |
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501 | priority support */ |
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502 | if (p_priority != 0) |
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503 | { |
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504 | __ipsec_errcode = EIPSEC_PRIORITY_NOT_COMPILED; |
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505 | return -1; |
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506 | } |
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507 | #endif |
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508 | |
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509 | offset = tlen; |
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510 | |
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511 | __ipsec_errcode = EIPSEC_NO_ERROR; |
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512 | return 0; |
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513 | } |
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514 | |
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515 | static int |
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516 | set_x_request(src, dst) |
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517 | struct sockaddr *src, *dst; |
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518 | { |
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519 | struct sadb_x_ipsecrequest *p; |
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520 | int reqlen; |
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521 | u_int8_t *n; |
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522 | |
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523 | reqlen = sizeof(*p) |
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524 | + (src ? sysdep_sa_len(src) : 0) |
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525 | + (dst ? sysdep_sa_len(dst) : 0); |
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526 | tlen += reqlen; /* increment to total length */ |
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527 | |
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528 | n = realloc(pbuf, tlen); |
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529 | if (n == NULL) { |
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530 | __ipsec_errcode = EIPSEC_NO_BUFS; |
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531 | return -1; |
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532 | } |
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533 | pbuf = n; |
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534 | |
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535 | p = (struct sadb_x_ipsecrequest *)&pbuf[offset]; |
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536 | p->sadb_x_ipsecrequest_len = reqlen; |
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537 | p->sadb_x_ipsecrequest_proto = p_protocol; |
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538 | p->sadb_x_ipsecrequest_mode = p_mode; |
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539 | p->sadb_x_ipsecrequest_level = p_level; |
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540 | p->sadb_x_ipsecrequest_reqid = p_reqid; |
---|
541 | offset += sizeof(*p); |
---|
542 | |
---|
543 | if (set_sockaddr(src) || set_sockaddr(dst)) |
---|
544 | return -1; |
---|
545 | |
---|
546 | __ipsec_errcode = EIPSEC_NO_ERROR; |
---|
547 | return 0; |
---|
548 | } |
---|
549 | |
---|
550 | static int |
---|
551 | set_sockaddr(addr) |
---|
552 | struct sockaddr *addr; |
---|
553 | { |
---|
554 | if (addr == NULL) { |
---|
555 | __ipsec_errcode = EIPSEC_NO_ERROR; |
---|
556 | return 0; |
---|
557 | } |
---|
558 | |
---|
559 | /* tlen has already incremented */ |
---|
560 | |
---|
561 | memcpy(&pbuf[offset], addr, sysdep_sa_len(addr)); |
---|
562 | |
---|
563 | offset += sysdep_sa_len(addr); |
---|
564 | |
---|
565 | __ipsec_errcode = EIPSEC_NO_ERROR; |
---|
566 | return 0; |
---|
567 | } |
---|
568 | |
---|
569 | static void |
---|
570 | policy_parse_request_init() |
---|
571 | { |
---|
572 | p_protocol = IPPROTO_IP; |
---|
573 | p_mode = IPSEC_MODE_ANY; |
---|
574 | p_level = IPSEC_LEVEL_DEFAULT; |
---|
575 | p_reqid = 0; |
---|
576 | if (p_src != NULL) { |
---|
577 | free(p_src); |
---|
578 | p_src = NULL; |
---|
579 | } |
---|
580 | if (p_dst != NULL) { |
---|
581 | free(p_dst); |
---|
582 | p_dst = NULL; |
---|
583 | } |
---|
584 | |
---|
585 | return; |
---|
586 | } |
---|
587 | |
---|
588 | static void * |
---|
589 | policy_parse(msg, msglen) |
---|
590 | const char *msg; |
---|
591 | int msglen; |
---|
592 | { |
---|
593 | int error; |
---|
594 | |
---|
595 | pbuf = NULL; |
---|
596 | tlen = 0; |
---|
597 | |
---|
598 | /* initialize */ |
---|
599 | p_dir = IPSEC_DIR_INVALID; |
---|
600 | p_type = IPSEC_POLICY_DISCARD; |
---|
601 | policy_parse_request_init(); |
---|
602 | __policy__strbuffer__init__(msg); |
---|
603 | |
---|
604 | error = yyparse(); /* it must be set errcode. */ |
---|
605 | __policy__strbuffer__free__(); |
---|
606 | #ifdef __rtems__ |
---|
607 | /* This frees the p_src and p_dst buffers. */ |
---|
608 | policy_parse_request_init(); |
---|
609 | #endif /* __rtems__ */ |
---|
610 | |
---|
611 | if (error) { |
---|
612 | if (pbuf != NULL) |
---|
613 | free(pbuf); |
---|
614 | return NULL; |
---|
615 | } |
---|
616 | |
---|
617 | /* update total length */ |
---|
618 | ((struct sadb_x_policy *)pbuf)->sadb_x_policy_len = PFKEY_UNIT64(tlen); |
---|
619 | |
---|
620 | __ipsec_errcode = EIPSEC_NO_ERROR; |
---|
621 | |
---|
622 | return pbuf; |
---|
623 | } |
---|
624 | |
---|
625 | ipsec_policy_t |
---|
626 | ipsec_set_policy(msg, msglen) |
---|
627 | __ipsec_const char *msg; |
---|
628 | int msglen; |
---|
629 | { |
---|
630 | caddr_t policy; |
---|
631 | |
---|
632 | policy = policy_parse(msg, msglen); |
---|
633 | if (policy == NULL) { |
---|
634 | if (__ipsec_errcode == EIPSEC_NO_ERROR) |
---|
635 | __ipsec_errcode = EIPSEC_INVAL_ARGUMENT; |
---|
636 | return NULL; |
---|
637 | } |
---|
638 | |
---|
639 | __ipsec_errcode = EIPSEC_NO_ERROR; |
---|
640 | return policy; |
---|
641 | } |
---|
642 | #ifdef __rtems__ |
---|
643 | |
---|
644 | void |
---|
645 | ipsec_free_policy(ipsec_policy_t buf) |
---|
646 | { |
---|
647 | free(buf); |
---|
648 | } |
---|
649 | #endif /* __rtems__ */ |
---|