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         }
 108
 109         /* un-serialize the data */
 110         if (!_SCUnserializeData(&data, (void *)dataRef, dataLen)) {
 111                 *sc_status = kSCStatusFailed;
 112         }
 113
 114         if (*sc_status != kSCStatusOK) {
 115                 goto done;
 116         }
 117
 118         if (!isA_CFString(key)) {
 119                 *sc_status = kSCStatusInvalidArgument;
 120                 goto done;
 121         }
 122
 123         mySession = getSession(server);
 124         if (mySession == NULL) {
 125                 mySession = tempSession(server, CFSTR("SCDynamicStoreAddValue"), audit_token);
 126                 if (mySession == NULL) {
 127                         /* you must have an open session to play */
 128                         *sc_status = kSCStatusNoStoreSession;
 129                         goto done;
 130                 }
 131         }
 132
 133         if (!hasWriteAccess(mySession, "add", key)) {
 134                 *sc_status = kSCStatusAccessError;
 135                 goto done;
 136         }
 137
 138         *sc_status = __SCDynamicStoreAddValue(mySession->store, key, data);
 139
 140     done :
 141
 142         if (key != NULL)        CFRelease(key);
 143         if (data != NULL)       CFRelease(data);
 144
 145         return KERN_SUCCESS;
 146 }
 147
 148
 149 __private_extern__
 150 kern_return_t
 151 _configadd_s(mach_port_t                server,
 152              xmlData_t                  keyRef,         /* raw XML bytes */
 153              mach_msg_type_number_t     keyLen,
 154              xmlData_t                  dataRef,        /* raw XML bytes */
 155              mach_msg_type_number_t     dataLen,
 156              int                        *newInstance,
 157              int                        *sc_status)
 158 {
 159         CFDataRef                       data            = NULL;         /* data (un-serialized) */
 160         CFStringRef                     key             = NULL;         /* key  (un-serialized) */
 161         serverSessionRef                mySession;
 162         SCDynamicStorePrivateRef        storePrivate;
 163         Boolean                         useSessionKeys;
 164
 165         *newInstance = 0;
 166         *sc_status = kSCStatusOK;
 167
 168         /* un-serialize the key */
 169         if (!_SCUnserializeString(&key, NULL, (void *)keyRef, keyLen)) {
 170                 *sc_status = kSCStatusFailed;
 171         }
 172
 173         /* un-serialize the data */
 174         if (!_SCUnserializeData(&data, (void *)dataRef, dataLen)) {
 175                 *sc_status = kSCStatusFailed;
 176         }
 177
 178         if (*sc_status != kSCStatusOK) {
 179                 goto done;
 180         }
 181
 182         if (!isA_CFString(key)) {
 183                 *sc_status = kSCStatusInvalidArgument;
 184                 goto done;
 185         }
 186
 187         mySession = getSession(server);
 188         if (mySession == NULL) {
 189                 /* you must have an open session to play */
 190                 *sc_status = kSCStatusNoStoreSession;
 191                 goto done;
 192         }
 193
 194         if (!hasWriteAccess(mySession, "add (session)", key)) {
 195                 *sc_status = kSCStatusAccessError;
 196                 goto done;
 197         }
 198
 199         // force "useSessionKeys"
 200         storePrivate = (SCDynamicStorePrivateRef)mySession->store;
 201         useSessionKeys = storePrivate->useSessionKeys;
 202         storePrivate->useSessionKeys = TRUE;
 203
 204         *sc_status = __SCDynamicStoreAddValue(mySession->store, key, data);
 205
 206         // restore "useSessionKeys"
 207         storePrivate->useSessionKeys = useSessionKeys;
 208
 209     done :
 210
 211         if (key != NULL)        CFRelease(key);
 212         if (data != NULL)       CFRelease(data);
 213
 214         return KERN_SUCCESS;
 215 }