configd.tproj/_configadd.c

   1 /*
   2  * Copyright (c) 2000, 2001, 2003, 2004, 2006, 2008, 2011, 2012, 2014-2017, 2019 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24 /*
  25  * Modification History
  26  *
  27  * June 1, 2001                 Allan Nathanson <ajn@apple.com>
  28  * - public API conversion
  29  *
  30  * March 24, 2000               Allan Nathanson <ajn@apple.com>
  31  * - initial revision
  32  */
  33
  34 #include "configd.h"
  35 #include "session.h"
  36
  37 __private_extern__
  38 int
  39 __SCDynamicStoreAddValue(SCDynamicStoreRef store, CFStringRef key, CFDataRef value)
  40 {
  41         int                             sc_status       = kSCStatusOK;
  42         SCDynamicStorePrivateRef        storePrivate    = (SCDynamicStorePrivateRef)store;
  43         CFDataRef                       tempValue;
  44
  45         SC_trace("add  %s : %5d : %@",
  46                  storePrivate->useSessionKeys ? "t " : "  ",
  47                  storePrivate->server,
  48                  key);
  49
  50         /*
  51          * Ensure that this is a new key.
  52          */
  53         sc_status = __SCDynamicStoreCopyValue(store, key, &tempValue, TRUE);
  54         switch (sc_status) {
  55                 case kSCStatusNoKey :
  56                         /* store key does not exist, proceed */
  57                         break;
  58
  59                 case kSCStatusOK :
  60                         /* store key exists, sorry */
  61                         CFRelease(tempValue);
  62                         sc_status = kSCStatusKeyExists;
  63                         goto done;
  64
  65                 default :
  66 #ifdef  DEBUG
  67                         SC_log(LOG_DEBUG, "__SCDynamicStoreCopyValue() failed: %s", SCErrorString(sc_status));
  68 #endif  /* DEBUG */
  69                         goto done;
  70         }
  71
  72         /*
  73          * Save the new key.
  74          */
  75         sc_status = __SCDynamicStoreSetValue(store, key, value, TRUE);
  76
  77         /* push changes */
  78         __SCDynamicStorePush();
  79
  80     done:
  81
  82         return sc_status;
  83 }
  84
  85
  86 __private_extern__
  87 kern_return_t
  88 _configadd(mach_port_t                  server,
  89            xmlData_t                    keyRef,         /* raw XML bytes */
  90            mach_msg_type_number_t       keyLen,
  91            xmlData_t                    dataRef,        /* raw XML bytes */
  92            mach_msg_type_number_t       dataLen,
  93            int                          *newInstance,
  94            int                          *sc_status,
  95            audit_token_t                audit_token)
  96 {
  97         CFStringRef             key             = NULL;         /* key  (un-serialized) */
  98         CFDataRef               data            = NULL;         /* data (un-serialized) */
  99         serverSessionRef        mySession;
 100
 101         *newInstance = 0;
 102         *sc_status = kSCStatusOK;
 103
 104         /* un-serialize the key */
 105         if (!_SCUnserializeString(&key, NULL, (void *)keyRef, keyLen)) {
 106                 *sc_status = kSCStatusFailed;
 107                 goto done;
 108         }
 109
 110         /* un-serialize the data */
 111         if (!_SCUnserializeData(&data, (void *)dataRef, dataLen)) {
 112                 *sc_status = kSCStatusFailed;
 113         }
 114
 115         if (*sc_status != kSCStatusOK) {
 116                 goto done;
 117         }
 118
 119         if (!isA_CFString(key)) {
 120                 *sc_status = kSCStatusInvalidArgument;
 121                 goto done;
 122         }
 123
 124         mySession = getSession(server);
 125         if (mySession == NULL) {
 126                 mySession = tempSession(server, CFSTR("SCDynamicStoreAddValue"), audit_token);
 127                 if (mySession == NULL) {
 128                         /* you must have an open session to play */
 129                         *sc_status = kSCStatusNoStoreSession;
 130                         goto done;
 131                 }
 132         }
 133
 134         if (!hasWriteAccess(mySession, "add", key)) {
 135                 *sc_status = kSCStatusAccessError;
 136                 goto done;
 137         }
 138
 139         *sc_status = __SCDynamicStoreAddValue(mySession->store, key, data);
 140
 141     done :
 142
 143         if (key != NULL)        CFRelease(key);
 144         if (data != NULL)       CFRelease(data);
 145
 146         return KERN_SUCCESS;
 147 }
 148
 149
 150 __private_extern__
 151 kern_return_t
 152 _configadd_s(mach_port_t                server,
 153              xmlData_t                  keyRef,         /* raw XML bytes */
 154              mach_msg_type_number_t     keyLen,
 155              xmlData_t                  dataRef,        /* raw XML bytes */
 156              mach_msg_type_number_t     dataLen,
 157              int                        *newInstance,
 158              int                        *sc_status)
 159 {
 160         CFDataRef                       data            = NULL;         /* data (un-serialized) */
 161         CFStringRef                     key             = NULL;         /* key  (un-serialized) */
 162         serverSessionRef                mySession;
 163         SCDynamicStorePrivateRef        storePrivate;
 164         Boolean                         useSessionKeys;
 165
 166         *newInstance = 0;
 167         *sc_status = kSCStatusOK;
 168
 169         /* un-serialize the key */
 170         if (!_SCUnserializeString(&key, NULL, (void *)keyRef, keyLen)) {
 171                 *sc_status = kSCStatusFailed;
 172         }
 173
 174         /* un-serialize the data */
 175         if (!_SCUnserializeData(&data, (void *)dataRef, dataLen)) {
 176                 *sc_status = kSCStatusFailed;
 177         }
 178
 179         if (*sc_status != kSCStatusOK) {
 180                 goto done;
 181         }
 182
 183         if (!isA_CFString(key)) {
 184                 *sc_status = kSCStatusInvalidArgument;
 185                 goto done;
 186         }
 187
 188         mySession = getSession(server);
 189         if (mySession == NULL) {
 190                 /* you must have an open session to play */
 191                 *sc_status = kSCStatusNoStoreSession;
 192                 goto done;
 193         }
 194
 195         if (!hasWriteAccess(mySession, "add (session)", key)) {
 196                 *sc_status = kSCStatusAccessError;
 197                 goto done;
 198         }
 199
 200         // force "useSessionKeys"
 201         storePrivate = (SCDynamicStorePrivateRef)mySession->store;
 202         useSessionKeys = storePrivate->useSessionKeys;
 203         storePrivate->useSessionKeys = TRUE;
 204
 205         *sc_status = __SCDynamicStoreAddValue(mySession->store, key, data);
 206
 207         // restore "useSessionKeys"
 208         storePrivate->useSessionKeys = useSessionKeys;
 209
 210     done :
 211
 212         if (key != NULL)        CFRelease(key);
 213         if (data != NULL)       CFRelease(data);
 214
 215         return KERN_SUCCESS;
 216 }