rpcraig | b19665c | 2012-07-30 09:33:03 -0400 | [diff] [blame] | 1 | <?xml version="1.0" encoding="utf-8"?> |
| 2 | <policy> |
| 3 | |
| 4 | <!-- |
| 5 | Sample signer stanza for install policy |
| 6 | |
| 7 | Rules: |
| 8 | * A signature is a hex encoded X.509 certificate and is required for each signer tag. |
| 9 | * A <signer signature="" > element may have multiple child elements: |
| 10 | allow-permission : produces a set of maximal allowed permissions (whitelist). |
| 11 | deny-permission : produces a blacklist of permissions to deny. |
| 12 | allow-all : a wildcard tag that will allow every permission requested. |
| 13 | package : a complex tag which itself defines allow, deny, and wildcard sub elements for |
| 14 | a specific package name protected by the signature |
| 15 | * Zero or more global <package name=""> tags are allowed. These tags allow a policy |
| 16 | to be set outside any signature for specific package names. |
| 17 | * Unknown tags at any level are skipped. |
| 18 | * Zero or more signer tags are allowed. |
| 19 | * Zero or more package tags are allowed per signer tag. |
| 20 | * A <package name=""> tag may not contain another <package name=""> tag. If found, it's skipped. |
| 21 | * A <default> tag is allowed that can contain install policy for all apps not signed with a |
| 22 | previously listed cert and not having a per package global policy. |
| 23 | * When multiple sub elements appear for a tag the following logic is used to |
| 24 | ultimately determine the type of enforcement: |
| 25 | ** A blacklist is used if at least one deny-permission tag is found |
| 26 | ** A whitelist is used if not a blacklist and at least one allow-permission tag is found |
| 27 | ** A wildcard (accept all permission) policy is used if not a blacklist and not a whitelist |
| 28 | and at least one allow-all tag is present. |
| 29 | ** If a <package name=""> sub element is found then that sub element's policy is used |
| 30 | according to the above logic and overrides any signature global policy type. |
| 31 | ** In order for a policy stanza to be enforced at least one of the above situations must |
| 32 | apply. Meaning, empty signer, default or package tags will not be accepted. |
| 33 | * Each signer/default/global package tag is allowed to contain one <seinfo value=""/> tag. |
| 34 | This tag represents additional info that each app can use in setting a SELinux security |
| 35 | context on the eventual process. Any <seinfo value=""/> tag found as a child of a |
| 36 | <package name=""> tag which is protected (sub element of signer or the default tag) is |
| 37 | ignored. It's possible that multiple seinfo tags are relevant for one app. In the event |
| 38 | that this happens, the seinfo tag that will be applied is the one for which the corresponding |
| 39 | policy stanza is used in the policy decision. |
| 40 | * Strict enforcing of any xml stanza is not enforced in most cases. This mainly applies to |
| 41 | duplicate tags which are allowed. In the event that a tag already exists, the original |
| 42 | tag is replaced. |
| 43 | * There are also no checks on the validity of permission names. Although valid android |
| 44 | permissions are expected, nothing prevents unknowns. |
| 45 | * Enforcement decisions: |
| 46 | - All signatures used to sign an app are checked for policy according to signer tags. |
| 47 | Only one of the signature policies has to pass however. |
| 48 | - In the event that none of the signature policies pass, or none even match, then |
| 49 | a global package policy is sought. If found, this policy mediates the install. |
| 50 | - The default tag is consulted last if needed. |
| 51 | - A local package policy always overrides any parent policy. |
| 52 | - If none of the cases apply then the app is denied. |
| 53 | |
| 54 | |
| 55 | Example global package policy |
| 56 | <package name="com.foo.com"> |
| 57 | <allow-permission name="android.permission.INTERNET" /> |
| 58 | <allow-permission name="android.permission.WRITE_EXTERNAL_STORAGE" /> |
| 59 | <allow-permission name="android.permission.ACCESS_NETWORK_STATE" /> |
| 60 | </package> |
| 61 | |
| 62 | Sample stanzas are given below based on the AOSP developer keys. |
| 63 | |
| 64 | --> |
| 65 | |
| 66 | <!-- Platform dev key with AOSP --> |
Geremy Condra | cd4104e | 2013-03-26 18:19:12 +0000 | [diff] [blame^] | 67 | <signer signature="@PLATFORM" > |
rpcraig | b19665c | 2012-07-30 09:33:03 -0400 | [diff] [blame] | 68 | <allow-all /> |
| 69 | <seinfo value="platform" /> |
| 70 | </signer> |
| 71 | |
| 72 | <!-- Media dev key in AOSP --> |
Geremy Condra | cd4104e | 2013-03-26 18:19:12 +0000 | [diff] [blame^] | 73 | <signer signature="@MEDIA" > |
rpcraig | b19665c | 2012-07-30 09:33:03 -0400 | [diff] [blame] | 74 | <allow-permission name="android.permission.ACCESS_ALL_DOWNLOADS" /> |
| 75 | <allow-permission name="android.permission.ACCESS_CACHE_FILESYSTEM" /> |
| 76 | <allow-permission name="android.permission.ACCESS_DOWNLOAD_MANAGER" /> |
| 77 | <allow-permission name="android.permission.ACCESS_MTP" /> |
| 78 | <allow-permission name="android.permission.ACCESS_NETWORK_STATE" /> |
| 79 | <allow-permission name="android.permission.CONNECTIVITY_INTERNAL" /> |
| 80 | <allow-permission name="android.permission.INTERNET" /> |
| 81 | <allow-permission name="android.permission.MODIFY_NETWORK_ACCOUNTING" /> |
| 82 | <allow-permission name="android.permission.READ_EXTERNAL_STORAGE" /> |
| 83 | <allow-permission name="android.permission.RECEIVE_BOOT_COMPLETED" /> |
| 84 | <allow-permission name="android.permission.RECEIVE_WAP_PUSH" /> |
| 85 | <allow-permission name="android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS" /> |
| 86 | <allow-permission name="android.permission.UPDATE_DEVICE_STATS" /> |
| 87 | <allow-permission name="android.permission.WAKE_LOCK" /> |
| 88 | <allow-permission name="android.permission.WRITE_EXTERNAL_STORAGE" /> |
| 89 | <allow-permission name="android.permission.WRITE_MEDIA_STORAGE" /> |
| 90 | <allow-permission name="android.permission.WRITE_SETTINGS" /> |
| 91 | <seinfo value="media" /> |
| 92 | </signer> |
| 93 | |
| 94 | <!-- shared dev key in AOSP --> |
Geremy Condra | cd4104e | 2013-03-26 18:19:12 +0000 | [diff] [blame^] | 95 | <signer signature="@SHARED" > |
rpcraig | b19665c | 2012-07-30 09:33:03 -0400 | [diff] [blame] | 96 | <allow-permission name="android.permission.ACCESS_COARSE_LOCATION" /> |
| 97 | <allow-permission name="android.permission.ACCESS_FINE_LOCATION" /> |
| 98 | <allow-permission name="android.permission.ACCESS_NETWORK_STATE" /> |
| 99 | <allow-permission name="android.permission.ALLOW_ANY_CODEC_FOR_PLAYBACK" /> |
| 100 | <allow-permission name="android.permission.BIND_APPWIDGET" /> |
| 101 | <allow-permission name="android.permission.BIND_WALLPAPER" /> |
| 102 | <allow-permission name="android.permission.CALL_PHONE" /> |
| 103 | <allow-permission name="android.permission.CALL_PRIVILEGED" /> |
| 104 | <allow-permission name="android.permission.CAMERA" /> |
| 105 | <allow-permission name="android.permission.GET_ACCOUNTS" /> |
| 106 | <allow-permission name="android.permission.GLOBAL_SEARCH" /> |
| 107 | <allow-permission name="android.permission.INTERNET" /> |
| 108 | <allow-permission name="android.permission.MANAGE_ACCOUNTS" /> |
| 109 | <allow-permission name="android.permission.MODIFY_AUDIO_SETTINGS" /> |
| 110 | <allow-permission name="android.permission.MODIFY_PHONE_STATE" /> |
| 111 | <allow-permission name="android.permission.NFC" /> |
| 112 | <allow-permission name="android.permission.PACKAGE_USAGE_STATS" /> |
| 113 | <allow-permission name="android.permission.READ_CALL_LOG" /> |
| 114 | <allow-permission name="android.permission.READ_CONTACTS"/> |
| 115 | <allow-permission name="android.permission.READ_EXTERNAL_STORAGE" /> |
| 116 | <allow-permission name="android.permission.READ_PHONE_STATE" /> |
| 117 | <allow-permission name="android.permission.READ_PROFILE" /> |
| 118 | <allow-permission name="android.permission.READ_SOCIAL_STREAM" /> |
| 119 | <allow-permission name="android.permission.READ_SYNC_SETTINGS" /> |
| 120 | <allow-permission name="android.permission.READ_SYNC_STATS" /> |
| 121 | <allow-permission name="android.permission.READ_USER_DICTIONARY" /> |
| 122 | <allow-permission name="android.permission.REBOOT" /> |
| 123 | <allow-permission name="android.permission.RECEIVE_BOOT_COMPLETED" /> |
| 124 | <allow-permission name="android.permission.RECORD_AUDIO" /> |
| 125 | <allow-permission name="android.permission.SET_WALLPAPER" /> |
| 126 | <allow-permission name="android.permission.SET_WALLPAPER_COMPONENT" /> |
| 127 | <allow-permission name="android.permission.SET_WALLPAPER_HINTS" /> |
| 128 | <allow-permission name="android.permission.SUBSCRIBED_FEEDS_READ" /> |
| 129 | <allow-permission name="android.permission.SUBSCRIBED_FEEDS_WRITE" /> |
| 130 | <allow-permission name="android.permission.USE_CREDENTIALS" /> |
| 131 | <allow-permission name="android.permission.VIBRATE" /> |
| 132 | <allow-permission name="android.permission.WAKE_LOCK" /> |
| 133 | <allow-permission name="android.permission.WRITE_CALL_LOG" /> |
| 134 | <allow-permission name="android.permission.WRITE_CONTACTS" /> |
| 135 | <allow-permission name="android.permission.WRITE_EXTERNAL_STORAGE" /> |
| 136 | <allow-permission name="android.permission.WRITE_PROFILE" /> |
| 137 | <allow-permission name="android.permission.WRITE_SETTINGS" /> |
| 138 | <allow-permission name="android.permission.WRITE_USER_DICTIONARY" /> |
| 139 | <allow-permission name="com.android.browser.permission.READ_HISTORY_BOOKMARKS"/> |
| 140 | <allow-permission name="com.android.launcher.permission.INSTALL_SHORTCUT" /> |
| 141 | <allow-permission name="com.android.launcher.permission.READ_SETTINGS" /> |
| 142 | <allow-permission name="com.android.launcher.permission.WRITE_SETTINGS" /> |
| 143 | <allow-permission name="com.android.voicemail.permission.ADD_VOICEMAIL" /> |
| 144 | <allow-permission name="com.android.voicemail.permission.READ_WRITE_ALL_VOICEMAIL" /> |
| 145 | <allow-permission name="com.google.android.googleapps.permission.GOOGLE_AUTH" /> |
| 146 | <allow-permission name="com.google.android.googleapps.permission.GOOGLE_AUTH.cp" /> |
| 147 | <allow-permission name="com.google.android.googleapps.permission.GOOGLE_AUTH.mail" /> |
| 148 | <seinfo value="shared" /> |
| 149 | </signer> |
| 150 | |
| 151 | <!-- release dev key in AOSP --> |
Geremy Condra | cd4104e | 2013-03-26 18:19:12 +0000 | [diff] [blame^] | 152 | <signer signature="@RELEASE" > |
rpcraig | b19665c | 2012-07-30 09:33:03 -0400 | [diff] [blame] | 153 | <seinfo value="release" /> |
| 154 | <deny-permission name="android.permission.BRICK" /> |
| 155 | <deny-permission name="android.permission.READ_LOGS" /> |
| 156 | <deny-permission name="com.android.browser.permission.READ_HISTORY_BOOKMARKS" /> |
| 157 | <deny-permission name="com.android.browser.permission.WRITE_HISTORY_BOOKMARKS" /> |
| 158 | <package name="com.android.browser" > |
| 159 | <allow-permission name="android.permission.ACCESS_COARSE_LOCATION"/> |
| 160 | <allow-permission name="android.permission.ACCESS_DOWNLOAD_MANAGER"/> |
| 161 | <allow-permission name="android.permission.ACCESS_FINE_LOCATION"/> |
| 162 | <allow-permission name="android.permission.ACCESS_NETWORK_STATE"/> |
| 163 | <allow-permission name="android.permission.ACCESS_WIFI_STATE"/> |
| 164 | <allow-permission name="android.permission.GET_ACCOUNTS"/> |
| 165 | <allow-permission name="android.permission.INTERNET" /> |
| 166 | <allow-permission name="android.permission.MANAGE_ACCOUNTS" /> |
| 167 | <allow-permission name="android.permission.NFC" /> |
| 168 | <allow-permission name="android.permission.READ_CONTACTS" /> |
| 169 | <allow-permission name="android.permission.READ_EXTERNAL_STORAGE" /> |
| 170 | <allow-permission name="android.permission.READ_PROFILE" /> |
| 171 | <allow-permission name="android.permission.READ_SYNC_SETTINGS" /> |
| 172 | <allow-permission name="android.permission.SEND_DOWNLOAD_COMPLETED_INTENTS" /> |
| 173 | <allow-permission name="android.permission.SET_WALLPAPER" /> |
| 174 | <allow-permission name="android.permission.USE_CREDENTIALS"/> |
| 175 | <allow-permission name="android.permission.WAKE_LOCK"/> |
| 176 | <allow-permission name="android.permission.WRITE_EXTERNAL_STORAGE" /> |
| 177 | <allow-permission name="android.permission.WRITE_SETTINGS" /> |
| 178 | <allow-permission name="android.permission.WRITE_SYNC_SETTINGS" /> |
| 179 | <allow-permission name="com.android.browser.permission.READ_HISTORY_BOOKMARKS"/> |
| 180 | <allow-permission name="com.android.browser.permission.WRITE_HISTORY_BOOKMARKS"/> |
| 181 | <allow-permission name="com.android.launcher.permission.INSTALL_SHORTCUT"/> |
| 182 | </package> |
| 183 | </signer> |
| 184 | |
| 185 | <!-- All other keys --> |
| 186 | <default> |
| 187 | <seinfo value="default" /> |
| 188 | <deny-permission name="android.permission.ACCESS_COARSE_LOCATION" /> |
| 189 | <deny-permission name="android.permission.ACCESS_FINE_LOCATION" /> |
| 190 | <deny-permission name="android.permission.AUTHENTICATE_ACCOUNTS" /> |
| 191 | <deny-permission name="android.permission.CALL_PHONE" /> |
| 192 | <deny-permission name="android.permission.CAMERA" /> |
| 193 | <deny-permission name="android.permission.READ_LOGS" /> |
| 194 | <deny-permission name="android.permission.WRITE_EXTERNAL_STORAGE" /> |
| 195 | </default> |
| 196 | |
| 197 | </policy> |