1 | /* |
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2 | * This file contains miscellaneous pieces of code which regfio.c |
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3 | * depends upon, from the Samba Subversion tree. See: |
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4 | * http://websvn.samba.org/cgi-bin/viewcvs.cgi/trunk/source/ |
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5 | * |
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6 | * Copyright (C) 2005-2006,2009 Timothy D. Morgan |
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7 | * Copyright (C) 1992-2005 Samba development team |
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8 | * (see individual files under Subversion for details.) |
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9 | * |
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10 | * This program is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License as published by |
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12 | * the Free Software Foundation; version 3 of the License. |
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13 | * |
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14 | * This program is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this program; if not, write to the Free Software |
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21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | * $Id $ |
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24 | */ |
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25 | |
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26 | #include "../include/winsec.h" |
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27 | |
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28 | |
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29 | |
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30 | /* From rpc_parse/parse_misc.c */ |
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31 | |
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32 | /******************************************************************* |
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33 | Reads or writes a DOM_SID structure. |
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34 | ********************************************************************/ |
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35 | bool smb_io_dom_sid(const char *desc, DOM_SID *sid, prs_struct *ps, int depth) |
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36 | { |
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37 | int i; |
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38 | |
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39 | if (sid == NULL) |
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40 | return false; |
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41 | depth++; |
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42 | |
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43 | if(!prs_uint8 ("sid_rev_num", ps, depth, &sid->sid_rev_num)) |
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44 | return false; |
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45 | |
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46 | if(!prs_uint8 ("num_auths ", ps, depth, &sid->num_auths)) |
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47 | return false; |
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48 | |
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49 | for (i = 0; i < 6; i++) |
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50 | { |
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51 | fstring tmp; |
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52 | snprintf(tmp, sizeof(tmp) - 1, "id_auth[%d] ", i); |
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53 | if(!prs_uint8 (tmp, ps, depth, &sid->id_auth[i])) |
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54 | return false; |
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55 | } |
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56 | |
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57 | /* oops! XXXX should really issue a warning here... */ |
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58 | if (sid->num_auths > MAXSUBAUTHS) |
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59 | sid->num_auths = MAXSUBAUTHS; |
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60 | |
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61 | if(!prs_uint32s("sub_auths ", ps, depth, |
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62 | sid->sub_auths, sid->num_auths)) |
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63 | { return false; } |
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64 | |
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65 | return true; |
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66 | } |
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67 | |
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68 | /* End of stuff from rpc_parse/parse_misc.c */ |
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69 | |
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70 | /* From lib/util_sid.c */ |
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71 | |
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72 | /***************************************************************** |
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73 | Calculates size of a sid. |
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74 | *****************************************************************/ |
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75 | size_t sid_size(const DOM_SID *sid) |
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76 | { |
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77 | if (sid == NULL) |
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78 | return 0; |
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79 | |
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80 | return sid->num_auths * sizeof(uint32) + 8; |
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81 | } |
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82 | |
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83 | |
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84 | /***************************************************************** |
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85 | Compare the auth portion of two sids. |
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86 | *****************************************************************/ |
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87 | int sid_compare_auth(const DOM_SID *sid1, const DOM_SID *sid2) |
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88 | { |
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89 | int i; |
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90 | |
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91 | if (sid1 == sid2) |
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92 | return 0; |
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93 | if (!sid1) |
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94 | return -1; |
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95 | if (!sid2) |
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96 | return 1; |
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97 | |
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98 | if (sid1->sid_rev_num != sid2->sid_rev_num) |
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99 | return sid1->sid_rev_num - sid2->sid_rev_num; |
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100 | |
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101 | for (i = 0; i < 6; i++) |
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102 | if (sid1->id_auth[i] != sid2->id_auth[i]) |
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103 | return sid1->id_auth[i] - sid2->id_auth[i]; |
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104 | |
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105 | return 0; |
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106 | } |
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107 | |
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108 | |
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109 | /***************************************************************** |
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110 | Compare two sids. |
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111 | *****************************************************************/ |
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112 | int sid_compare(const DOM_SID *sid1, const DOM_SID *sid2) |
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113 | { |
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114 | int i; |
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115 | |
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116 | if (sid1 == sid2) |
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117 | return 0; |
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118 | if (!sid1) |
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119 | return -1; |
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120 | if (!sid2) |
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121 | return 1; |
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122 | |
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123 | /* Compare most likely different rids, first: i.e start at end */ |
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124 | if (sid1->num_auths != sid2->num_auths) |
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125 | return sid1->num_auths - sid2->num_auths; |
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126 | |
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127 | for (i = sid1->num_auths-1; i >= 0; --i) |
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128 | if (sid1->sub_auths[i] != sid2->sub_auths[i]) |
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129 | return sid1->sub_auths[i] - sid2->sub_auths[i]; |
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130 | |
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131 | return sid_compare_auth(sid1, sid2); |
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132 | } |
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133 | |
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134 | |
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135 | /***************************************************************** |
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136 | Compare two sids. |
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137 | *****************************************************************/ |
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138 | bool sid_equal(const DOM_SID *sid1, const DOM_SID *sid2) |
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139 | { |
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140 | return sid_compare(sid1, sid2) == 0; |
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141 | } |
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142 | |
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143 | /* End of stuff from lib/util_sid.c */ |
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144 | |
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145 | /* From lib/secace.c */ |
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146 | |
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147 | /******************************************************************* |
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148 | Check if ACE has OBJECT type. |
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149 | ********************************************************************/ |
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150 | |
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151 | bool sec_ace_object(uint8 type) |
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152 | { |
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153 | if (type == SEC_ACE_TYPE_ACCESS_ALLOWED_OBJECT || |
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154 | type == SEC_ACE_TYPE_ACCESS_DENIED_OBJECT || |
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155 | type == SEC_ACE_TYPE_SYSTEM_AUDIT_OBJECT || |
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156 | type == SEC_ACE_TYPE_SYSTEM_ALARM_OBJECT) { |
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157 | return true; |
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158 | } |
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159 | return false; |
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160 | } |
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161 | |
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162 | /* End of stuff from lib/secace.c */ |
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163 | |
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164 | /* From rpc_parse/parse_sec.c */ |
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165 | |
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166 | /******************************************************************* |
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167 | Reads or writes a SEC_ACCESS structure. |
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168 | ********************************************************************/ |
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169 | bool sec_io_access(const char *desc, SEC_ACCESS *t, prs_struct *ps, int depth) |
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170 | { |
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171 | if (t == NULL) |
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172 | return false; |
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173 | |
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174 | depth++; |
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175 | |
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176 | if(!prs_uint32("mask", ps, depth, &t->mask)) |
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177 | return false; |
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178 | |
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179 | return true; |
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180 | } |
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181 | |
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182 | |
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183 | /******************************************************************* |
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184 | Reads or writes a SEC_ACE structure. |
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185 | ********************************************************************/ |
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186 | bool sec_io_ace(const char *desc, SEC_ACE *psa, prs_struct *ps, int depth) |
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187 | { |
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188 | uint32 old_offset; |
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189 | uint32 offset_ace_size; |
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190 | |
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191 | if (psa == NULL) |
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192 | return false; |
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193 | |
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194 | depth++; |
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195 | |
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196 | old_offset = ps->data_offset; |
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197 | |
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198 | if(!prs_uint8("type ", ps, depth, &psa->type)) |
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199 | return false; |
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200 | |
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201 | if(!prs_uint8("flags", ps, depth, &psa->flags)) |
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202 | return false; |
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203 | |
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204 | if(!prs_uint16_pre("size ", ps, depth, &psa->size, &offset_ace_size)) |
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205 | return false; |
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206 | |
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207 | if(!sec_io_access("info ", &psa->info, ps, depth)) |
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208 | return false; |
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209 | |
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210 | /* check whether object access is present */ |
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211 | if (!sec_ace_object(psa->type)) |
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212 | { |
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213 | if (!smb_io_dom_sid("trustee ", &psa->trustee , ps, depth)) |
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214 | return false; |
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215 | } |
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216 | else |
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217 | { |
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218 | if (!prs_uint32("obj_flags", ps, depth, &psa->obj_flags)) |
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219 | return false; |
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220 | |
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221 | if (psa->obj_flags & SEC_ACE_OBJECT_PRESENT) |
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222 | if (!smb_io_uuid("obj_guid", &psa->obj_guid, ps,depth)) |
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223 | return false; |
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224 | |
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225 | if (psa->obj_flags & SEC_ACE_OBJECT_INHERITED_PRESENT) |
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226 | if (!smb_io_uuid("inh_guid", &psa->inh_guid, ps,depth)) |
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227 | return false; |
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228 | |
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229 | if(!smb_io_dom_sid("trustee ", &psa->trustee , ps, depth)) |
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230 | return false; |
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231 | } |
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232 | |
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233 | /* Theorectically an ACE can have a size greater than the |
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234 | * sum of its components. When marshalling, pad with extra null bytes |
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235 | * up to the |
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236 | * correct size. |
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237 | */ |
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238 | if (!ps->io && (psa->size > ps->data_offset - old_offset)) |
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239 | { |
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240 | uint32 extra_len = psa->size - (ps->data_offset - old_offset); |
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241 | uint32 i; |
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242 | uint8 c = 0; |
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243 | |
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244 | for (i = 0; i < extra_len; i++) |
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245 | { |
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246 | if (!prs_uint8("ace extra space", ps, depth, &c)) |
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247 | return false; |
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248 | } |
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249 | } |
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250 | |
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251 | if(!prs_uint16_post("size ", ps, depth, &psa->size, |
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252 | offset_ace_size, old_offset)) |
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253 | { return false; } |
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254 | |
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255 | return true; |
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256 | } |
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257 | |
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258 | |
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259 | /******************************************************************* |
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260 | Reads or writes a SEC_ACL structure. |
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261 | |
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262 | First of the xx_io_xx functions that allocates its data structures |
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263 | for you as it reads them. |
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264 | ********************************************************************/ |
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265 | bool sec_io_acl(const char *desc, SEC_ACL **ppsa, prs_struct *ps, int depth) |
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266 | { |
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267 | unsigned int i; |
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268 | uint32 old_offset; |
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269 | uint32 offset_acl_size; |
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270 | SEC_ACL* psa; |
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271 | |
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272 | /* |
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273 | * Note that the size is always a multiple of 4 bytes due to the |
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274 | * nature of the data structure. Therefore the prs_align() calls |
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275 | * have been removed as they through us off when doing two-layer |
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276 | * marshalling such as in the printing code (RPC_BUFFER). --jerry |
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277 | */ |
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278 | |
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279 | if (ppsa == NULL || ps == NULL) |
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280 | return false; |
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281 | |
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282 | psa = *ppsa; |
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283 | |
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284 | if(ps->io && psa == NULL) |
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285 | { |
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286 | /* |
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287 | * This is a read and we must allocate the stuct to read into. |
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288 | */ |
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289 | if((psa = (SEC_ACL*)zalloc(sizeof(SEC_ACL))) == NULL) |
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290 | return false; |
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291 | *ppsa = psa; |
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292 | } |
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293 | |
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294 | depth++; |
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295 | old_offset = ps->data_offset; |
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296 | |
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297 | if(!prs_uint16("revision", ps, depth, &psa->revision) |
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298 | || !prs_uint16_pre("size ", ps, depth, &psa->size, &offset_acl_size) |
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299 | || !prs_uint32("num_aces ", ps, depth, &psa->num_aces)) |
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300 | { |
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301 | free(psa); |
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302 | *ppsa = NULL; |
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303 | return false; |
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304 | } |
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305 | |
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306 | if (ps->io) |
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307 | { |
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308 | /* |
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309 | * Even if the num_aces is zero, allocate memory as there's a difference |
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310 | * between a non-present DACL (allow all access) and a DACL with no ACE's |
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311 | * (allow no access). |
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312 | */ |
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313 | if((psa->ace = (SEC_ACE*)zcalloc(sizeof(SEC_ACE), psa->num_aces+1)) == NULL) |
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314 | { |
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315 | free(psa); |
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316 | *ppsa = NULL; |
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317 | return false; |
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318 | } |
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319 | } |
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320 | |
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321 | for (i = 0; i < psa->num_aces; i++) |
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322 | { |
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323 | fstring tmp; |
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324 | snprintf(tmp, sizeof(tmp)-1, "ace_list[%02d]: ", i); |
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325 | if(!sec_io_ace(tmp, &psa->ace[i], ps, depth)) |
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326 | { |
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327 | free(psa); |
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328 | *ppsa = NULL; |
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329 | return false; |
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330 | } |
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331 | } |
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332 | |
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333 | /* Theoretically an ACL can have a size greater than the |
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334 | * sum of its components. When marshalling, pad with extra null |
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335 | * bytes up to the |
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336 | * correct size. |
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337 | */ |
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338 | if (!ps->io && (psa->size > ps->data_offset - old_offset)) |
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339 | { |
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340 | uint32 extra_len = psa->size - (ps->data_offset - old_offset); |
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341 | uint8 c = 0; |
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342 | |
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343 | for (i = 0; i < extra_len; i++) |
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344 | { |
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345 | if (!prs_uint8("acl extra space", ps, depth, &c)) |
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346 | { |
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347 | free(psa); |
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348 | *ppsa = NULL; |
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349 | return false; |
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350 | } |
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351 | } |
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352 | } |
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353 | |
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354 | if(!prs_uint16_post("size ", ps, depth, &psa->size, |
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355 | offset_acl_size, old_offset)) |
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356 | { |
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357 | free(psa); |
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358 | *ppsa = NULL; |
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359 | return false; |
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360 | } |
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361 | |
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362 | return true; |
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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 | Reads or writes a SEC_DESC structure. |
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368 | If reading and the *ppsd = NULL, allocates the structure. |
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369 | ********************************************************************/ |
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370 | bool sec_io_desc(const char *desc, SEC_DESC **ppsd, prs_struct *ps, int depth) |
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371 | { |
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372 | uint32 old_offset; |
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373 | uint32 max_offset = 0; /* after we're done, move offset to end */ |
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374 | uint32 tmp_offset = 0; |
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375 | |
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376 | SEC_DESC *psd; |
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377 | |
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378 | if (ppsd == NULL || ps == NULL) |
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379 | return false; |
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380 | |
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381 | psd = *ppsd; |
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382 | if (psd == NULL) |
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383 | { |
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384 | if(ps->io) |
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385 | { |
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386 | if((psd = (SEC_DESC*)zalloc(sizeof(SEC_DESC))) == NULL) |
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387 | return false; |
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388 | *ppsd = psd; |
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389 | } |
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390 | else |
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391 | { |
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392 | /* Marshalling - just ignore. */ |
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393 | return true; |
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394 | } |
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395 | } |
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396 | |
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397 | depth++; |
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398 | |
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399 | /* start of security descriptor stored for back-calc offset purposes */ |
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400 | old_offset = ps->data_offset; |
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401 | |
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402 | if(!prs_uint16("revision ", ps, depth, &psd->revision) |
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403 | || !prs_uint16("type ", ps, depth, &psd->type)) |
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404 | { |
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405 | free(psd); |
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406 | *ppsd = NULL; |
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407 | return false; |
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408 | } |
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409 | |
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410 | if (!ps->io) |
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411 | { |
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412 | uint32 offset = SEC_DESC_HEADER_SIZE; |
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413 | |
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414 | /* |
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415 | * Work out the offsets here, as we write it out. |
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416 | */ |
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417 | |
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418 | if (psd->sacl != NULL) |
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419 | { |
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420 | psd->off_sacl = offset; |
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421 | offset += psd->sacl->size; |
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422 | } |
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423 | else |
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424 | psd->off_sacl = 0; |
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425 | |
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426 | if (psd->dacl != NULL) |
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427 | { |
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428 | psd->off_dacl = offset; |
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429 | offset += psd->dacl->size; |
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430 | } |
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431 | else |
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432 | psd->off_dacl = 0; |
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433 | |
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434 | if (psd->owner_sid != NULL) |
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435 | { |
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436 | psd->off_owner_sid = offset; |
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437 | offset += sid_size(psd->owner_sid); |
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438 | } |
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439 | else |
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440 | psd->off_owner_sid = 0; |
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441 | |
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442 | if (psd->grp_sid != NULL) |
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443 | { |
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444 | psd->off_grp_sid = offset; |
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445 | offset += sid_size(psd->grp_sid); |
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446 | } |
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447 | else |
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448 | psd->off_grp_sid = 0; |
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449 | } |
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450 | |
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451 | if(!prs_uint32("off_owner_sid", ps, depth, &psd->off_owner_sid) |
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452 | || !prs_uint32("off_grp_sid ", ps, depth, &psd->off_grp_sid) |
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453 | || !prs_uint32("off_sacl ", ps, depth, &psd->off_sacl) |
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454 | || !prs_uint32("off_dacl ", ps, depth, &psd->off_dacl)) |
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455 | { |
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456 | free(psd); |
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457 | *ppsd = NULL; |
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458 | return false; |
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459 | } |
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460 | max_offset = MAX(max_offset, ps->data_offset); |
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461 | |
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462 | if (psd->off_owner_sid != 0) |
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463 | { |
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464 | tmp_offset = ps->data_offset; |
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465 | if(!prs_set_offset(ps, old_offset + psd->off_owner_sid)) |
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466 | { |
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467 | free(psd); |
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468 | *ppsd = NULL; |
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469 | return false; |
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470 | } |
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471 | |
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472 | if (ps->io) |
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473 | { |
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474 | /* reading */ |
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475 | if((psd->owner_sid = (DOM_SID*)zalloc(sizeof(DOM_SID))) == NULL) |
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476 | { |
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477 | free(psd); |
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478 | *ppsd = NULL; |
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479 | return false; |
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480 | } |
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481 | } |
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482 | |
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483 | if(!smb_io_dom_sid("owner_sid ", psd->owner_sid , ps, depth)) |
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484 | { |
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485 | if(ps->io) |
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486 | free(psd->owner_sid); |
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487 | free(psd); |
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488 | *ppsd = NULL; |
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489 | return false; |
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490 | } |
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491 | |
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492 | max_offset = MAX(max_offset, ps->data_offset); |
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493 | |
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494 | if (!prs_set_offset(ps,tmp_offset)) |
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495 | { |
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496 | if(ps->io) |
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497 | free(psd->owner_sid); |
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498 | free(psd); |
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499 | *ppsd = NULL; |
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500 | return false; |
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501 | } |
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502 | } |
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503 | |
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504 | if (psd->off_grp_sid != 0) |
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505 | { |
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506 | tmp_offset = ps->data_offset; |
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507 | if(!prs_set_offset(ps, old_offset + psd->off_grp_sid)) |
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508 | { |
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509 | if(ps->io) |
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510 | free(psd->owner_sid); |
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511 | free(psd); |
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512 | *ppsd = NULL; |
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513 | return false; |
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514 | } |
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515 | |
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516 | if (ps->io) |
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517 | { |
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518 | /* reading */ |
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519 | if((psd->grp_sid = (DOM_SID*)zalloc(sizeof(DOM_SID))) == NULL) |
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520 | { |
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521 | free(psd->owner_sid); |
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522 | free(psd); |
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523 | *ppsd = NULL; |
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524 | return false; |
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525 | } |
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526 | } |
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527 | |
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528 | if(!smb_io_dom_sid("grp_sid", psd->grp_sid, ps, depth)) |
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529 | { |
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530 | if(ps->io) |
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531 | { |
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532 | free(psd->grp_sid); |
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533 | free(psd->owner_sid); |
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534 | } |
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535 | free(psd); |
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536 | *ppsd = NULL; |
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537 | return false; |
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538 | } |
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539 | |
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540 | max_offset = MAX(max_offset, ps->data_offset); |
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541 | |
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542 | if (!prs_set_offset(ps,tmp_offset)) |
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543 | { |
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544 | if(ps->io) |
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545 | { |
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546 | free(psd->grp_sid); |
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547 | free(psd->owner_sid); |
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548 | } |
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549 | free(psd); |
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550 | *ppsd = NULL; |
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551 | return false; |
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552 | } |
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553 | } |
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554 | |
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555 | if ((psd->type & SEC_DESC_SACL_PRESENT) && psd->off_sacl) |
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556 | { |
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557 | tmp_offset = ps->data_offset; |
---|
558 | if(!prs_set_offset(ps, old_offset + psd->off_sacl) |
---|
559 | || !sec_io_acl("sacl", &psd->sacl, ps, depth)) |
---|
560 | { |
---|
561 | if(ps->io) |
---|
562 | { |
---|
563 | free(psd->grp_sid); |
---|
564 | free(psd->owner_sid); |
---|
565 | } |
---|
566 | free(psd); |
---|
567 | *ppsd = NULL; |
---|
568 | return false; |
---|
569 | } |
---|
570 | max_offset = MAX(max_offset, ps->data_offset); |
---|
571 | if (!prs_set_offset(ps,tmp_offset)) |
---|
572 | { |
---|
573 | if(ps->io) |
---|
574 | { |
---|
575 | free(psd->grp_sid); |
---|
576 | free(psd->owner_sid); |
---|
577 | } |
---|
578 | free(psd); |
---|
579 | *ppsd = NULL; |
---|
580 | return false; |
---|
581 | } |
---|
582 | } |
---|
583 | |
---|
584 | if ((psd->type & SEC_DESC_DACL_PRESENT) && psd->off_dacl != 0) |
---|
585 | { |
---|
586 | tmp_offset = ps->data_offset; |
---|
587 | if(!prs_set_offset(ps, old_offset + psd->off_dacl) |
---|
588 | || !sec_io_acl("dacl", &psd->dacl, ps, depth)) |
---|
589 | { |
---|
590 | if(ps->io) |
---|
591 | { |
---|
592 | free(psd->grp_sid); |
---|
593 | free(psd->owner_sid); |
---|
594 | } |
---|
595 | free(psd); |
---|
596 | *ppsd = NULL; |
---|
597 | return false; |
---|
598 | } |
---|
599 | max_offset = MAX(max_offset, ps->data_offset); |
---|
600 | if (!prs_set_offset(ps,tmp_offset)) |
---|
601 | { |
---|
602 | if(ps->io) |
---|
603 | { |
---|
604 | free(psd->grp_sid); |
---|
605 | free(psd->owner_sid); |
---|
606 | } |
---|
607 | free(psd); |
---|
608 | *ppsd = NULL; |
---|
609 | return false; |
---|
610 | } |
---|
611 | } |
---|
612 | |
---|
613 | if(!prs_set_offset(ps, max_offset)) |
---|
614 | { |
---|
615 | if(ps->io) |
---|
616 | { |
---|
617 | free(psd->grp_sid); |
---|
618 | free(psd->owner_sid); |
---|
619 | } |
---|
620 | free(psd); |
---|
621 | *ppsd = NULL; |
---|
622 | return false; |
---|
623 | } |
---|
624 | |
---|
625 | return true; |
---|
626 | } |
---|
627 | |
---|
628 | /* End of stuff from rpc_parse/parse_sec.c */ |
---|
629 | |
---|
630 | /* From lib/secace.c */ |
---|
631 | |
---|
632 | /******************************************************************* |
---|
633 | Compares two SEC_ACE structures |
---|
634 | ********************************************************************/ |
---|
635 | bool sec_ace_equal(SEC_ACE *s1, SEC_ACE *s2) |
---|
636 | { |
---|
637 | /* Trivial cases */ |
---|
638 | if (!s1 && !s2) |
---|
639 | return true; |
---|
640 | if (!s1 || !s2) |
---|
641 | return false; |
---|
642 | |
---|
643 | /* Check top level stuff */ |
---|
644 | if (s1->type != s2->type || s1->flags != s2->flags || |
---|
645 | s1->info.mask != s2->info.mask) |
---|
646 | { return false; } |
---|
647 | |
---|
648 | /* Check SID */ |
---|
649 | if (!sid_equal(&s1->trustee, &s2->trustee)) |
---|
650 | return false; |
---|
651 | |
---|
652 | return true; |
---|
653 | } |
---|
654 | |
---|
655 | /* End of stuff from lib/secace.c */ |
---|
656 | |
---|
657 | /* From lib/secacl.c */ |
---|
658 | |
---|
659 | /******************************************************************* |
---|
660 | Compares two SEC_ACL structures |
---|
661 | ********************************************************************/ |
---|
662 | |
---|
663 | bool sec_acl_equal(SEC_ACL *s1, SEC_ACL *s2) |
---|
664 | { |
---|
665 | unsigned int i, j; |
---|
666 | |
---|
667 | /* Trivial cases */ |
---|
668 | if (!s1 && !s2) |
---|
669 | return true; |
---|
670 | if (!s1 || !s2) |
---|
671 | return false; |
---|
672 | |
---|
673 | /* Check top level stuff */ |
---|
674 | if (s1->revision != s2->revision) |
---|
675 | return false; |
---|
676 | |
---|
677 | if (s1->num_aces != s2->num_aces) |
---|
678 | return false; |
---|
679 | |
---|
680 | /* The ACEs could be in any order so check each ACE in s1 against |
---|
681 | each ACE in s2. */ |
---|
682 | |
---|
683 | for (i = 0; i < s1->num_aces; i++) |
---|
684 | { |
---|
685 | bool found = false; |
---|
686 | |
---|
687 | for (j = 0; j < s2->num_aces; j++) |
---|
688 | { |
---|
689 | if (sec_ace_equal(&s1->ace[i], &s2->ace[j])) |
---|
690 | { |
---|
691 | found = true; |
---|
692 | break; |
---|
693 | } |
---|
694 | } |
---|
695 | |
---|
696 | if (!found) |
---|
697 | return false; |
---|
698 | } |
---|
699 | |
---|
700 | return true; |
---|
701 | } |
---|
702 | |
---|
703 | /* End of stuff from lib/secacl.c */ |
---|
704 | |
---|
705 | /* From lib/secdesc.c */ |
---|
706 | |
---|
707 | /******************************************************************* |
---|
708 | Compares two SEC_DESC structures |
---|
709 | ********************************************************************/ |
---|
710 | bool sec_desc_equal(SEC_DESC *s1, SEC_DESC *s2) |
---|
711 | { |
---|
712 | /* Trivial cases */ |
---|
713 | if (!s1 && !s2) |
---|
714 | return true; |
---|
715 | if (!s1 || !s2) |
---|
716 | return false; |
---|
717 | |
---|
718 | /* Check top level stuff */ |
---|
719 | if (s1->revision != s2->revision) |
---|
720 | return false; |
---|
721 | |
---|
722 | if (s1->type!= s2->type) |
---|
723 | return false; |
---|
724 | |
---|
725 | /* Check owner and group */ |
---|
726 | if (!sid_equal(s1->owner_sid, s2->owner_sid)) |
---|
727 | return false; |
---|
728 | |
---|
729 | if (!sid_equal(s1->grp_sid, s2->grp_sid)) |
---|
730 | return false; |
---|
731 | |
---|
732 | /* Check ACLs present in one but not the other */ |
---|
733 | if ((s1->dacl && !s2->dacl) || (!s1->dacl && s2->dacl) || |
---|
734 | (s1->sacl && !s2->sacl) || (!s1->sacl && s2->sacl)) |
---|
735 | { return false; } |
---|
736 | |
---|
737 | /* Sigh - we have to do it the hard way by iterating over all |
---|
738 | the ACEs in the ACLs */ |
---|
739 | if(!sec_acl_equal(s1->dacl, s2->dacl) || !sec_acl_equal(s1->sacl, s2->sacl)) |
---|
740 | return false; |
---|
741 | |
---|
742 | return true; |
---|
743 | } |
---|
744 | |
---|
745 | /* End of stuff from lib/secdesc.c */ |
---|