Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1 | // Copyright 2020, The Android Open Source Project |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | //! This crate provides access control primitives for Keystore 2.0. |
| 16 | //! It provides high level functions for checking permissions in the keystore2 and keystore2_key |
| 17 | //! SELinux classes based on the keystore2_selinux backend. |
| 18 | //! It also provides KeystorePerm and KeyPerm as convenience wrappers for the SELinux permission |
| 19 | //! defined by keystore2 and keystore2_key respectively. |
| 20 | |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 21 | use android_system_keystore2::aidl::android::system::keystore2::{ |
| 22 | Domain::Domain, KeyDescriptor::KeyDescriptor, KeyPermission::KeyPermission, |
| 23 | }; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 24 | |
| 25 | use std::cmp::PartialEq; |
| 26 | use std::convert::From; |
Janis Danisevskis | 935e6c6 | 2020-08-18 12:52:27 -0700 | [diff] [blame] | 27 | use std::ffi::CStr; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 28 | |
| 29 | use crate::error::Error as KsError; |
| 30 | use keystore2_selinux as selinux; |
| 31 | |
| 32 | use anyhow::Context as AnyhowContext; |
| 33 | |
| 34 | use selinux::Backend; |
| 35 | |
Janis Danisevskis | 4ad056f | 2020-08-05 19:46:46 +0000 | [diff] [blame] | 36 | use lazy_static::lazy_static; |
| 37 | |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 38 | // Replace getcon with a mock in the test situation |
| 39 | #[cfg(not(test))] |
| 40 | use selinux::getcon; |
| 41 | #[cfg(test)] |
| 42 | use tests::test_getcon as getcon; |
| 43 | |
Janis Danisevskis | 4ad056f | 2020-08-05 19:46:46 +0000 | [diff] [blame] | 44 | lazy_static! { |
| 45 | // Panicking here is allowed because keystore cannot function without this backend |
| 46 | // and it would happen early and indicate a gross misconfiguration of the device. |
| 47 | static ref KEYSTORE2_KEY_LABEL_BACKEND: selinux::KeystoreKeyBackend = |
| 48 | selinux::KeystoreKeyBackend::new().unwrap(); |
| 49 | } |
| 50 | |
| 51 | fn lookup_keystore2_key_context(namespace: i64) -> anyhow::Result<selinux::Context> { |
| 52 | KEYSTORE2_KEY_LABEL_BACKEND.lookup(&namespace.to_string()) |
| 53 | } |
| 54 | |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 55 | /// ## Background |
| 56 | /// |
| 57 | /// AIDL enums are represented as constants of the form: |
| 58 | /// ``` |
| 59 | /// mod EnumName { |
| 60 | /// pub type EnumName = i32; |
| 61 | /// pub const Variant1: EnumName = <value1>; |
| 62 | /// pub const Variant2: EnumName = <value2>; |
| 63 | /// ... |
| 64 | /// } |
| 65 | ///``` |
| 66 | /// This macro wraps the enum in a new type, e.g., `MyPerm` and maps each variant to an SELinux |
| 67 | /// permission while providing the following interface: |
| 68 | /// * From<EnumName> and Into<EnumName> are implemented. Where the implementation of From maps |
| 69 | /// any variant not specified to the default. |
| 70 | /// * Every variant has a constructor with a name corresponding to its lower case SELinux string |
| 71 | /// representation. |
| 72 | /// * `MyPerm.to_selinux(&self)` returns the SELinux string representation of the |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 73 | /// represented permission. |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 74 | /// |
| 75 | /// ## Special behavior |
| 76 | /// If the keyword `use` appears as an selinux name `use_` is used as identifier for the |
| 77 | /// constructor function (e.g. `MePerm::use_()`) but the string returned by `to_selinux` will |
| 78 | /// still be `"use"`. |
| 79 | /// |
| 80 | /// ## Example |
| 81 | /// ``` |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 82 | /// |
| 83 | /// implement_permission!( |
| 84 | /// /// MyPerm documentation. |
| 85 | /// #[derive(Clone, Copy, Debug, PartialEq)] |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 86 | /// MyPerm from EnumName with default (None, none) {} |
| 87 | /// Variant1, selinux name: variant1; |
| 88 | /// Variant2, selinux name: variant1; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 89 | /// } |
| 90 | /// ); |
| 91 | /// ``` |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 92 | macro_rules! implement_permission_aidl { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 93 | // This rule provides the public interface of the macro. And starts the preprocessing |
| 94 | // recursion (see below). |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 95 | ($(#[$m:meta])* $name:ident from $aidl_name:ident with default ($($def:tt)*) |
| 96 | { $($element:tt)* }) |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 97 | => { |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 98 | implement_permission_aidl!(@replace_use $($m)*, $name, $aidl_name, ($($def)*), [], |
| 99 | $($element)*); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 100 | }; |
| 101 | |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 102 | // The following three rules recurse through the elements of the form |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 103 | // `<enum variant>, selinux name: <selinux_name>;` |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 104 | // preprocessing the input. |
| 105 | |
| 106 | // The first rule terminates the recursion and passes the processed arguments to the final |
| 107 | // rule that spills out the implementation. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 108 | (@replace_use $($m:meta)*, $name:ident, $aidl_name:ident, ($($def:tt)*), [$($out:tt)*], ) => { |
| 109 | implement_permission_aidl!(@end $($m)*, $name, $aidl_name, ($($def)*) { $($out)* } ); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 110 | }; |
| 111 | |
| 112 | // The second rule is triggered if the selinux name of an element is literally `use`. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 113 | // It produces the tuple `<enum variant>, use_, use;` |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 114 | // and appends it to the out list. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 115 | (@replace_use $($m:meta)*, $name:ident, $aidl_name:ident, ($($def:tt)*), [$($out:tt)*], |
| 116 | $e_name:ident, selinux name: use; $($element:tt)*) |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 117 | => { |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 118 | implement_permission_aidl!(@replace_use $($m)*, $name, $aidl_name, ($($def)*), |
| 119 | [$($out)* $e_name, use_, use;], $($element)*); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 120 | }; |
| 121 | |
| 122 | // The third rule is the default rule which replaces every input tuple with |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 123 | // `<enum variant>, <selinux_name>, <selinux_name>;` |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 124 | // and appends the result to the out list. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 125 | (@replace_use $($m:meta)*, $name:ident, $aidl_name:ident, ($($def:tt)*), [$($out:tt)*], |
| 126 | $e_name:ident, selinux name: $e_str:ident; $($element:tt)*) |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 127 | => { |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 128 | implement_permission_aidl!(@replace_use $($m)*, $name, $aidl_name, ($($def)*), |
| 129 | [$($out)* $e_name, $e_str, $e_str;], $($element)*); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 130 | }; |
| 131 | |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 132 | (@end $($m:meta)*, $name:ident, $aidl_name:ident, |
| 133 | ($def_name:ident, $def_selinux_name:ident) { |
| 134 | $($element_name:ident, $element_identifier:ident, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 135 | $selinux_name:ident;)* |
| 136 | }) |
| 137 | => |
| 138 | { |
| 139 | $(#[$m])* |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 140 | pub struct $name(pub $aidl_name); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 141 | |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 142 | impl From<$aidl_name> for $name { |
| 143 | fn from (p: $aidl_name) -> Self { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 144 | match p { |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 145 | $aidl_name::$def_name => Self($aidl_name::$def_name), |
| 146 | $($aidl_name::$element_name => Self($aidl_name::$element_name),)* |
| 147 | _ => Self($aidl_name::$def_name), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 148 | } |
| 149 | } |
| 150 | } |
| 151 | |
Matthew Maurer | b77a28d | 2021-05-07 16:08:20 -0700 | [diff] [blame] | 152 | impl From<$name> for $aidl_name { |
| 153 | fn from(p: $name) -> $aidl_name { |
| 154 | p.0 |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 155 | } |
| 156 | } |
| 157 | |
| 158 | impl $name { |
| 159 | /// Returns a string representation of the permission as required by |
| 160 | /// `selinux::check_access`. |
| 161 | pub fn to_selinux(&self) -> &'static str { |
| 162 | match self { |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 163 | Self($aidl_name::$def_name) => stringify!($def_selinux_name), |
| 164 | $(Self($aidl_name::$element_name) => stringify!($selinux_name),)* |
| 165 | _ => stringify!($def_selinux_name), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 166 | } |
| 167 | } |
| 168 | |
| 169 | /// Creates an instance representing a permission with the same name. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 170 | pub const fn $def_selinux_name() -> Self { Self($aidl_name::$def_name) } |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 171 | $( |
| 172 | /// Creates an instance representing a permission with the same name. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 173 | pub const fn $element_identifier() -> Self { Self($aidl_name::$element_name) } |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 174 | )* |
| 175 | } |
| 176 | }; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 177 | } |
| 178 | |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 179 | implement_permission_aidl!( |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 180 | /// KeyPerm provides a convenient abstraction from the SELinux class `keystore2_key`. |
| 181 | /// At the same time it maps `KeyPermissions` from the Keystore 2.0 AIDL Grant interface to |
| 182 | /// the SELinux permissions. With the implement_permission macro, we conveniently |
| 183 | /// provide mappings between the wire type bit field values, the rust enum and the SELinux |
| 184 | /// string representation. |
| 185 | /// |
| 186 | /// ## Example |
| 187 | /// |
| 188 | /// In this access check `KeyPerm::get_info().to_selinux()` would return the SELinux representation |
| 189 | /// "info". |
| 190 | /// ``` |
| 191 | /// selinux::check_access(source_context, target_context, "keystore2_key", |
| 192 | /// KeyPerm::get_info().to_selinux()); |
| 193 | /// ``` |
| 194 | #[derive(Clone, Copy, Debug, Eq, PartialEq)] |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 195 | KeyPerm from KeyPermission with default (NONE, none) { |
Satya Tangirala | 3361b61 | 2021-03-08 14:36:11 -0800 | [diff] [blame] | 196 | CONVERT_STORAGE_KEY_TO_EPHEMERAL, selinux name: convert_storage_key_to_ephemeral; |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 197 | DELETE, selinux name: delete; |
| 198 | GEN_UNIQUE_ID, selinux name: gen_unique_id; |
| 199 | GET_INFO, selinux name: get_info; |
| 200 | GRANT, selinux name: grant; |
| 201 | MANAGE_BLOB, selinux name: manage_blob; |
| 202 | REBIND, selinux name: rebind; |
| 203 | REQ_FORCED_OP, selinux name: req_forced_op; |
| 204 | UPDATE, selinux name: update; |
| 205 | USE, selinux name: use; |
| 206 | USE_DEV_ID, selinux name: use_dev_id; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 207 | } |
| 208 | ); |
| 209 | |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 210 | /// This macro implements an enum with values mapped to SELinux permission names. |
| 211 | /// The below example wraps the enum MyPermission in the tuple struct `MyPerm` and implements |
| 212 | /// * From<i32> and Into<i32> are implemented. Where the implementation of From maps |
| 213 | /// any variant not specified to the default. |
| 214 | /// * Every variant has a constructor with a name corresponding to its lower case SELinux string |
| 215 | /// representation. |
| 216 | /// * `MyPerm.to_selinux(&self)` returns the SELinux string representation of the |
| 217 | /// represented permission. |
| 218 | /// |
| 219 | /// ## Example |
| 220 | /// ``` |
| 221 | /// implement_permission!( |
| 222 | /// /// MyPerm documentation. |
| 223 | /// #[derive(Clone, Copy, Debug, Eq, PartialEq)] |
| 224 | /// MyPerm with default (None = 0, none) { |
| 225 | /// Foo = 1, selinux name: foo; |
| 226 | /// Bar = 2, selinux name: bar; |
| 227 | /// } |
| 228 | /// ); |
| 229 | /// ``` |
| 230 | macro_rules! implement_permission { |
| 231 | // This rule provides the public interface of the macro. And starts the preprocessing |
| 232 | // recursion (see below). |
| 233 | ($(#[$m:meta])* $name:ident with default |
| 234 | ($def_name:ident = $def_val:expr, $def_selinux_name:ident) |
| 235 | { |
| 236 | $($(#[$element_meta:meta])* |
| 237 | $element_name:ident = $element_val:expr, selinux name: $selinux_name:ident;)* |
| 238 | }) |
| 239 | => { |
| 240 | $(#[$m])* |
| 241 | pub enum $name { |
| 242 | /// The default variant of an enum. |
| 243 | $def_name = $def_val, |
| 244 | $( |
| 245 | $(#[$element_meta])* |
| 246 | $element_name = $element_val, |
| 247 | )* |
| 248 | } |
| 249 | |
| 250 | impl From<i32> for $name { |
| 251 | fn from (p: i32) -> Self { |
| 252 | match p { |
| 253 | $def_val => Self::$def_name, |
| 254 | $($element_val => Self::$element_name,)* |
| 255 | _ => Self::$def_name, |
| 256 | } |
| 257 | } |
| 258 | } |
| 259 | |
Matthew Maurer | b77a28d | 2021-05-07 16:08:20 -0700 | [diff] [blame] | 260 | impl From<$name> for i32 { |
| 261 | fn from(p: $name) -> i32 { |
| 262 | p as i32 |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 263 | } |
| 264 | } |
| 265 | |
| 266 | impl $name { |
| 267 | /// Returns a string representation of the permission as required by |
| 268 | /// `selinux::check_access`. |
| 269 | pub fn to_selinux(&self) -> &'static str { |
| 270 | match self { |
| 271 | Self::$def_name => stringify!($def_selinux_name), |
| 272 | $(Self::$element_name => stringify!($selinux_name),)* |
| 273 | } |
| 274 | } |
| 275 | |
| 276 | /// Creates an instance representing a permission with the same name. |
| 277 | pub const fn $def_selinux_name() -> Self { Self::$def_name } |
| 278 | $( |
| 279 | /// Creates an instance representing a permission with the same name. |
| 280 | pub const fn $selinux_name() -> Self { Self::$element_name } |
| 281 | )* |
| 282 | } |
| 283 | }; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 284 | } |
| 285 | |
| 286 | implement_permission!( |
| 287 | /// KeystorePerm provides a convenient abstraction from the SELinux class `keystore2`. |
| 288 | /// Using the implement_permission macro we get the same features as `KeyPerm`. |
| 289 | #[derive(Clone, Copy, Debug, PartialEq)] |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 290 | KeystorePerm with default (None = 0, none) { |
| 291 | /// Checked when a new auth token is installed. |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 292 | AddAuth = 1, selinux name: add_auth; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 293 | /// Checked when an app is uninstalled or wiped. |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 294 | ClearNs = 2, selinux name: clear_ns; |
Hasini Gunasinghe | 9ee1841 | 2021-03-11 20:12:44 +0000 | [diff] [blame] | 295 | /// Checked when the user state is queried from Keystore 2.0. |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 296 | GetState = 4, selinux name: get_state; |
Janis Danisevskis | ee10b5f | 2020-09-22 16:42:35 -0700 | [diff] [blame] | 297 | /// Checked when Keystore 2.0 is asked to list a namespace that the caller |
| 298 | /// does not have the get_info permission for. |
| 299 | List = 8, selinux name: list; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 300 | /// Checked when Keystore 2.0 gets locked. |
Janis Danisevskis | ee10b5f | 2020-09-22 16:42:35 -0700 | [diff] [blame] | 301 | Lock = 0x10, selinux name: lock; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 302 | /// Checked when Keystore 2.0 shall be reset. |
Hasini Gunasinghe | 803c2d4 | 2021-01-27 00:48:40 +0000 | [diff] [blame] | 303 | Reset = 0x20, selinux name: reset; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 304 | /// Checked when Keystore 2.0 shall be unlocked. |
Hasini Gunasinghe | 803c2d4 | 2021-01-27 00:48:40 +0000 | [diff] [blame] | 305 | Unlock = 0x40, selinux name: unlock; |
| 306 | /// Checked when user is added or removed. |
| 307 | ChangeUser = 0x80, selinux name: change_user; |
| 308 | /// Checked when password of the user is changed. |
| 309 | ChangePassword = 0x100, selinux name: change_password; |
| 310 | /// Checked when a UID is cleared. |
| 311 | ClearUID = 0x200, selinux name: clear_uid; |
Hasini Gunasinghe | 5fc9525 | 2020-12-04 00:35:08 +0000 | [diff] [blame] | 312 | /// Checked when Credstore calls IKeystoreAuthorization to obtain auth tokens. |
| 313 | GetAuthToken = 0x400, selinux name: get_auth_token; |
Satya Tangirala | 5b9e5b1 | 2021-03-09 12:54:21 -0800 | [diff] [blame] | 314 | /// Checked when earlyBootEnded() is called. |
| 315 | EarlyBootEnded = 0x800, selinux name: early_boot_ended; |
Janis Danisevskis | 333b7c0 | 2021-03-23 18:57:41 -0700 | [diff] [blame] | 316 | /// Checked when IKeystoreMaintenance::onDeviceOffBody is called. |
| 317 | ReportOffBody = 0x1000, selinux name: report_off_body; |
Hasini Gunasinghe | 15891e6 | 2021-06-10 16:23:27 +0000 | [diff] [blame^] | 318 | /// Checked when IkeystoreMetrics::pullMetris is called. |
| 319 | PullMetrics = 0x2000, selinux name: pull_metrics; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 320 | } |
| 321 | ); |
| 322 | |
| 323 | /// Represents a set of `KeyPerm` permissions. |
| 324 | /// `IntoIterator` is implemented for this struct allowing the iteration through all the |
| 325 | /// permissions in the set. |
| 326 | /// It also implements a function `includes(self, other)` that checks if the permissions |
| 327 | /// in `other` are included in `self`. |
| 328 | /// |
| 329 | /// KeyPermSet can be created with the macro `key_perm_set![]`. |
| 330 | /// |
| 331 | /// ## Example |
| 332 | /// ``` |
| 333 | /// let perms1 = key_perm_set![KeyPerm::use_(), KeyPerm::manage_blob(), KeyPerm::grant()]; |
| 334 | /// let perms2 = key_perm_set![KeyPerm::use_(), KeyPerm::manage_blob()]; |
| 335 | /// |
| 336 | /// assert!(perms1.includes(perms2)) |
| 337 | /// assert!(!perms2.includes(perms1)) |
| 338 | /// |
| 339 | /// let i = perms1.into_iter(); |
| 340 | /// // iteration in ascending order of the permission's numeric representation. |
| 341 | /// assert_eq(Some(KeyPerm::manage_blob()), i.next()); |
| 342 | /// assert_eq(Some(KeyPerm::grant()), i.next()); |
| 343 | /// assert_eq(Some(KeyPerm::use_()), i.next()); |
| 344 | /// assert_eq(None, i.next()); |
| 345 | /// ``` |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 346 | #[derive(Copy, Clone, Debug, Eq, PartialEq, Ord, PartialOrd)] |
| 347 | pub struct KeyPermSet(pub i32); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 348 | |
| 349 | mod perm { |
| 350 | use super::*; |
| 351 | |
| 352 | pub struct IntoIter { |
| 353 | vec: KeyPermSet, |
| 354 | pos: u8, |
| 355 | } |
| 356 | |
| 357 | impl IntoIter { |
| 358 | pub fn new(v: KeyPermSet) -> Self { |
| 359 | Self { vec: v, pos: 0 } |
| 360 | } |
| 361 | } |
| 362 | |
| 363 | impl std::iter::Iterator for IntoIter { |
| 364 | type Item = KeyPerm; |
| 365 | |
| 366 | fn next(&mut self) -> Option<Self::Item> { |
| 367 | loop { |
| 368 | if self.pos == 32 { |
| 369 | return None; |
| 370 | } |
| 371 | let p = self.vec.0 & (1 << self.pos); |
| 372 | self.pos += 1; |
| 373 | if p != 0 { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 374 | return Some(KeyPerm::from(KeyPermission(p))); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 375 | } |
| 376 | } |
| 377 | } |
| 378 | } |
| 379 | } |
| 380 | |
| 381 | impl From<KeyPerm> for KeyPermSet { |
| 382 | fn from(p: KeyPerm) -> Self { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 383 | Self((p.0).0 as i32) |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 384 | } |
| 385 | } |
| 386 | |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 387 | /// allow conversion from the AIDL wire type i32 to a permission set. |
| 388 | impl From<i32> for KeyPermSet { |
| 389 | fn from(p: i32) -> Self { |
| 390 | Self(p) |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | impl From<KeyPermSet> for i32 { |
| 395 | fn from(p: KeyPermSet) -> i32 { |
| 396 | p.0 |
| 397 | } |
| 398 | } |
| 399 | |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 400 | impl KeyPermSet { |
| 401 | /// Returns true iff this permission set has all of the permissions that are in `other`. |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 402 | pub fn includes<T: Into<KeyPermSet>>(&self, other: T) -> bool { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 403 | let o: KeyPermSet = other.into(); |
| 404 | (self.0 & o.0) == o.0 |
| 405 | } |
| 406 | } |
| 407 | |
| 408 | /// This macro can be used to create a `KeyPermSet` from a list of `KeyPerm` values. |
| 409 | /// |
| 410 | /// ## Example |
| 411 | /// ``` |
| 412 | /// let v = key_perm_set![Perm::delete(), Perm::manage_blob()]; |
| 413 | /// ``` |
| 414 | #[macro_export] |
| 415 | macro_rules! key_perm_set { |
| 416 | () => { KeyPermSet(0) }; |
| 417 | ($head:expr $(, $tail:expr)* $(,)?) => { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 418 | KeyPermSet(($head.0).0 $(| ($tail.0).0)*) |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 419 | }; |
| 420 | } |
| 421 | |
| 422 | impl IntoIterator for KeyPermSet { |
| 423 | type Item = KeyPerm; |
| 424 | type IntoIter = perm::IntoIter; |
| 425 | |
| 426 | fn into_iter(self) -> Self::IntoIter { |
| 427 | Self::IntoIter::new(self) |
| 428 | } |
| 429 | } |
| 430 | |
| 431 | /// Uses `selinux::check_access` to check if the given caller context `caller_cxt` may access |
| 432 | /// the given permision `perm` of the `keystore2` security class. |
Janis Danisevskis | 935e6c6 | 2020-08-18 12:52:27 -0700 | [diff] [blame] | 433 | pub fn check_keystore_permission(caller_ctx: &CStr, perm: KeystorePerm) -> anyhow::Result<()> { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 434 | let target_context = getcon().context("check_keystore_permission: getcon failed.")?; |
| 435 | selinux::check_access(caller_ctx, &target_context, "keystore2", perm.to_selinux()) |
| 436 | } |
| 437 | |
| 438 | /// Uses `selinux::check_access` to check if the given caller context `caller_cxt` has |
| 439 | /// all the permissions indicated in `access_vec` for the target domain indicated by the key |
| 440 | /// descriptor `key` in the security class `keystore2_key`. |
| 441 | /// |
| 442 | /// Also checks if the caller has the grant permission for the given target domain. |
| 443 | /// |
| 444 | /// Attempts to grant the grant permission are always denied. |
| 445 | /// |
| 446 | /// The only viable target domains are |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 447 | /// * `Domain::APP` in which case u:r:keystore:s0 is used as target context and |
| 448 | /// * `Domain::SELINUX` in which case the `key.nspace` parameter is looked up in |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 449 | /// SELinux keystore key backend, and the result is used |
| 450 | /// as target context. |
| 451 | pub fn check_grant_permission( |
Janis Danisevskis | 935e6c6 | 2020-08-18 12:52:27 -0700 | [diff] [blame] | 452 | caller_ctx: &CStr, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 453 | access_vec: KeyPermSet, |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 454 | key: &KeyDescriptor, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 455 | ) -> anyhow::Result<()> { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 456 | let target_context = match key.domain { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 457 | Domain::APP => getcon().context("check_grant_permission: getcon failed.")?, |
| 458 | Domain::SELINUX => lookup_keystore2_key_context(key.nspace) |
| 459 | .context("check_grant_permission: Domain::SELINUX: Failed to lookup namespace.")?, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 460 | _ => return Err(KsError::sys()).context(format!("Cannot grant {:?}.", key.domain)), |
| 461 | }; |
| 462 | |
| 463 | selinux::check_access(caller_ctx, &target_context, "keystore2_key", "grant") |
| 464 | .context("Grant permission is required when granting.")?; |
| 465 | |
| 466 | if access_vec.includes(KeyPerm::grant()) { |
| 467 | return Err(selinux::Error::perm()).context("Grant permission cannot be granted."); |
| 468 | } |
| 469 | |
| 470 | for p in access_vec.into_iter() { |
| 471 | selinux::check_access(caller_ctx, &target_context, "keystore2_key", p.to_selinux()) |
Janis Danisevskis | a31dd9e | 2021-01-30 00:13:17 -0800 | [diff] [blame] | 472 | .context(format!( |
| 473 | concat!( |
| 474 | "check_grant_permission: check_access failed. ", |
| 475 | "The caller may have tried to grant a permission that they don't possess. {:?}" |
| 476 | ), |
| 477 | p |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 478 | ))? |
| 479 | } |
| 480 | Ok(()) |
| 481 | } |
| 482 | |
| 483 | /// Uses `selinux::check_access` to check if the given caller context `caller_cxt` |
| 484 | /// has the permissions indicated by `perm` for the target domain indicated by the key |
| 485 | /// descriptor `key` in the security class `keystore2_key`. |
| 486 | /// |
| 487 | /// The behavior differs slightly depending on the selected target domain: |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 488 | /// * `Domain::APP` u:r:keystore:s0 is used as target context. |
| 489 | /// * `Domain::SELINUX` `key.nspace` parameter is looked up in the SELinux keystore key |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 490 | /// backend, and the result is used as target context. |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 491 | /// * `Domain::BLOB` Same as SELinux but the "manage_blob" permission is always checked additionally |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 492 | /// to the one supplied in `perm`. |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 493 | /// * `Domain::GRANT` Does not use selinux::check_access. Instead the `access_vector` |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 494 | /// parameter is queried for permission, which must be supplied in this case. |
| 495 | /// |
| 496 | /// ## Return values. |
| 497 | /// * Ok(()) If the requested permissions were granted. |
| 498 | /// * Err(selinux::Error::perm()) If the requested permissions were denied. |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 499 | /// * Err(KsError::sys()) This error is produced if `Domain::GRANT` is selected but no `access_vec` |
| 500 | /// was supplied. It is also produced if `Domain::KEY_ID` was selected, and |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 501 | /// on various unexpected backend failures. |
| 502 | pub fn check_key_permission( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 503 | caller_uid: u32, |
Janis Danisevskis | 935e6c6 | 2020-08-18 12:52:27 -0700 | [diff] [blame] | 504 | caller_ctx: &CStr, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 505 | perm: KeyPerm, |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 506 | key: &KeyDescriptor, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 507 | access_vector: &Option<KeyPermSet>, |
| 508 | ) -> anyhow::Result<()> { |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 509 | // If an access vector was supplied, the key is either accessed by GRANT or by KEY_ID. |
| 510 | // In the former case, key.domain was set to GRANT and we check the failure cases |
| 511 | // further below. If the access is requested by KEY_ID, key.domain would have been |
| 512 | // resolved to APP or SELINUX depending on where the key actually resides. |
| 513 | // Either way we can return here immediately if the access vector covers the requested |
| 514 | // permission. If it does not, we can still check if the caller has access by means of |
| 515 | // ownership. |
| 516 | if let Some(access_vector) = access_vector { |
| 517 | if access_vector.includes(perm) { |
| 518 | return Ok(()); |
| 519 | } |
| 520 | } |
| 521 | |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 522 | let target_context = match key.domain { |
| 523 | // apps get the default keystore context |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 524 | Domain::APP => { |
| 525 | if caller_uid as i64 != key.nspace { |
| 526 | return Err(selinux::Error::perm()) |
| 527 | .context("Trying to access key without ownership."); |
| 528 | } |
| 529 | getcon().context("check_key_permission: getcon failed.")? |
| 530 | } |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 531 | Domain::SELINUX => lookup_keystore2_key_context(key.nspace) |
| 532 | .context("check_key_permission: Domain::SELINUX: Failed to lookup namespace.")?, |
| 533 | Domain::GRANT => { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 534 | match access_vector { |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 535 | Some(_) => { |
| 536 | return Err(selinux::Error::perm()) |
| 537 | .context(format!("\"{}\" not granted", perm.to_selinux())); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 538 | } |
| 539 | None => { |
| 540 | // If DOMAIN_GRANT was selected an access vector must be supplied. |
| 541 | return Err(KsError::sys()).context( |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 542 | "Cannot check permission for Domain::GRANT without access vector.", |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 543 | ); |
| 544 | } |
| 545 | } |
| 546 | } |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 547 | Domain::KEY_ID => { |
| 548 | // We should never be called with `Domain::KEY_ID. The database |
| 549 | // lookup should have converted this into one of `Domain::APP` |
| 550 | // or `Domain::SELINUX`. |
| 551 | return Err(KsError::sys()).context("Cannot check permission for Domain::KEY_ID."); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 552 | } |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 553 | Domain::BLOB => { |
| 554 | let tctx = lookup_keystore2_key_context(key.nspace) |
| 555 | .context("Domain::BLOB: Failed to lookup namespace.")?; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 556 | // If DOMAIN_KEY_BLOB was specified, we check for the "manage_blob" |
| 557 | // permission in addition to the requested permission. |
| 558 | selinux::check_access( |
| 559 | caller_ctx, |
| 560 | &tctx, |
| 561 | "keystore2_key", |
| 562 | KeyPerm::manage_blob().to_selinux(), |
| 563 | )?; |
| 564 | |
| 565 | tctx |
| 566 | } |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 567 | _ => { |
| 568 | return Err(KsError::sys()) |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 569 | .context(format!("Unknown domain value: \"{:?}\".", key.domain)) |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 570 | } |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 571 | }; |
| 572 | |
| 573 | selinux::check_access(caller_ctx, &target_context, "keystore2_key", perm.to_selinux()) |
| 574 | } |
| 575 | |
| 576 | #[cfg(test)] |
| 577 | mod tests { |
| 578 | use super::*; |
| 579 | use anyhow::anyhow; |
| 580 | use anyhow::Result; |
| 581 | use keystore2_selinux::*; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 582 | |
| 583 | const ALL_PERMS: KeyPermSet = key_perm_set![ |
| 584 | KeyPerm::manage_blob(), |
| 585 | KeyPerm::delete(), |
| 586 | KeyPerm::use_dev_id(), |
| 587 | KeyPerm::req_forced_op(), |
| 588 | KeyPerm::gen_unique_id(), |
| 589 | KeyPerm::grant(), |
| 590 | KeyPerm::get_info(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 591 | KeyPerm::rebind(), |
| 592 | KeyPerm::update(), |
| 593 | KeyPerm::use_(), |
Satya Tangirala | 3361b61 | 2021-03-08 14:36:11 -0800 | [diff] [blame] | 594 | KeyPerm::convert_storage_key_to_ephemeral(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 595 | ]; |
| 596 | |
Janis Danisevskis | a31dd9e | 2021-01-30 00:13:17 -0800 | [diff] [blame] | 597 | const SYSTEM_SERVER_PERMISSIONS_NO_GRANT: KeyPermSet = key_perm_set![ |
| 598 | KeyPerm::delete(), |
| 599 | KeyPerm::use_dev_id(), |
| 600 | // No KeyPerm::grant() |
| 601 | KeyPerm::get_info(), |
| 602 | KeyPerm::rebind(), |
| 603 | KeyPerm::update(), |
| 604 | KeyPerm::use_(), |
| 605 | ]; |
| 606 | |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 607 | const NOT_GRANT_PERMS: KeyPermSet = key_perm_set![ |
| 608 | KeyPerm::manage_blob(), |
| 609 | KeyPerm::delete(), |
| 610 | KeyPerm::use_dev_id(), |
| 611 | KeyPerm::req_forced_op(), |
| 612 | KeyPerm::gen_unique_id(), |
| 613 | // No KeyPerm::grant() |
| 614 | KeyPerm::get_info(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 615 | KeyPerm::rebind(), |
| 616 | KeyPerm::update(), |
| 617 | KeyPerm::use_(), |
Satya Tangirala | 3361b61 | 2021-03-08 14:36:11 -0800 | [diff] [blame] | 618 | KeyPerm::convert_storage_key_to_ephemeral(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 619 | ]; |
| 620 | |
| 621 | const UNPRIV_PERMS: KeyPermSet = key_perm_set![ |
| 622 | KeyPerm::delete(), |
| 623 | KeyPerm::get_info(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 624 | KeyPerm::rebind(), |
| 625 | KeyPerm::update(), |
| 626 | KeyPerm::use_(), |
| 627 | ]; |
| 628 | |
| 629 | /// The su_key namespace as defined in su.te and keystore_key_contexts of the |
| 630 | /// SePolicy (system/sepolicy). |
| 631 | const SU_KEY_NAMESPACE: i32 = 0; |
| 632 | /// The shell_key namespace as defined in shell.te and keystore_key_contexts of the |
| 633 | /// SePolicy (system/sepolicy). |
| 634 | const SHELL_KEY_NAMESPACE: i32 = 1; |
| 635 | |
| 636 | pub fn test_getcon() -> Result<Context> { |
| 637 | Context::new("u:object_r:keystore:s0") |
| 638 | } |
| 639 | |
| 640 | // This macro evaluates the given expression and checks that |
| 641 | // a) evaluated to Result::Err() and that |
| 642 | // b) the wrapped error is selinux::Error::perm() (permission denied). |
| 643 | // We use a macro here because a function would mask which invocation caused the failure. |
| 644 | // |
| 645 | // TODO b/164121720 Replace this macro with a function when `track_caller` is available. |
| 646 | macro_rules! assert_perm_failed { |
| 647 | ($test_function:expr) => { |
| 648 | let result = $test_function; |
| 649 | assert!(result.is_err(), "Permission check should have failed."); |
| 650 | assert_eq!( |
| 651 | Some(&selinux::Error::perm()), |
| 652 | result.err().unwrap().root_cause().downcast_ref::<selinux::Error>() |
| 653 | ); |
| 654 | }; |
| 655 | } |
| 656 | |
| 657 | fn check_context() -> Result<(selinux::Context, i32, bool)> { |
| 658 | // Calling the non mocked selinux::getcon here intended. |
| 659 | let context = selinux::getcon()?; |
| 660 | match context.to_str().unwrap() { |
| 661 | "u:r:su:s0" => Ok((context, SU_KEY_NAMESPACE, true)), |
| 662 | "u:r:shell:s0" => Ok((context, SHELL_KEY_NAMESPACE, false)), |
| 663 | c => Err(anyhow!(format!( |
| 664 | "This test must be run as \"su\" or \"shell\". Current context: \"{}\"", |
| 665 | c |
| 666 | ))), |
| 667 | } |
| 668 | } |
| 669 | |
| 670 | #[test] |
| 671 | fn check_keystore_permission_test() -> Result<()> { |
| 672 | let system_server_ctx = Context::new("u:r:system_server:s0")?; |
| 673 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::add_auth()).is_ok()); |
| 674 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::clear_ns()).is_ok()); |
| 675 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::get_state()).is_ok()); |
| 676 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::lock()).is_ok()); |
| 677 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::reset()).is_ok()); |
| 678 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::unlock()).is_ok()); |
Hasini Gunasinghe | 803c2d4 | 2021-01-27 00:48:40 +0000 | [diff] [blame] | 679 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::change_user()).is_ok()); |
| 680 | assert!( |
| 681 | check_keystore_permission(&system_server_ctx, KeystorePerm::change_password()).is_ok() |
| 682 | ); |
| 683 | assert!(check_keystore_permission(&system_server_ctx, KeystorePerm::clear_uid()).is_ok()); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 684 | let shell_ctx = Context::new("u:r:shell:s0")?; |
| 685 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::add_auth())); |
| 686 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::clear_ns())); |
Janis Danisevskis | 1bb595e | 2021-03-16 10:09:08 -0700 | [diff] [blame] | 687 | assert!(check_keystore_permission(&shell_ctx, KeystorePerm::get_state()).is_ok()); |
Janis Danisevskis | ee10b5f | 2020-09-22 16:42:35 -0700 | [diff] [blame] | 688 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::list())); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 689 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::lock())); |
| 690 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::reset())); |
| 691 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::unlock())); |
Hasini Gunasinghe | 803c2d4 | 2021-01-27 00:48:40 +0000 | [diff] [blame] | 692 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::change_user())); |
| 693 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::change_password())); |
| 694 | assert_perm_failed!(check_keystore_permission(&shell_ctx, KeystorePerm::clear_uid())); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 695 | Ok(()) |
| 696 | } |
| 697 | |
| 698 | #[test] |
| 699 | fn check_grant_permission_app() -> Result<()> { |
| 700 | let system_server_ctx = Context::new("u:r:system_server:s0")?; |
| 701 | let shell_ctx = Context::new("u:r:shell:s0")?; |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 702 | let key = KeyDescriptor { domain: Domain::APP, nspace: 0, alias: None, blob: None }; |
Janis Danisevskis | a31dd9e | 2021-01-30 00:13:17 -0800 | [diff] [blame] | 703 | check_grant_permission(&system_server_ctx, SYSTEM_SERVER_PERMISSIONS_NO_GRANT, &key) |
| 704 | .expect("Grant permission check failed."); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 705 | |
Janis Danisevskis | a31dd9e | 2021-01-30 00:13:17 -0800 | [diff] [blame] | 706 | // attempts to grant the grant permission must always fail even when privileged. |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 707 | assert_perm_failed!(check_grant_permission( |
| 708 | &system_server_ctx, |
| 709 | KeyPerm::grant().into(), |
| 710 | &key |
| 711 | )); |
| 712 | // unprivileged grant attempts always fail. shell does not have the grant permission. |
| 713 | assert_perm_failed!(check_grant_permission(&shell_ctx, UNPRIV_PERMS, &key)); |
| 714 | Ok(()) |
| 715 | } |
| 716 | |
| 717 | #[test] |
| 718 | fn check_grant_permission_selinux() -> Result<()> { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 719 | let (sctx, namespace, is_su) = check_context()?; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 720 | let key = KeyDescriptor { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 721 | domain: Domain::SELINUX, |
| 722 | nspace: namespace as i64, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 723 | alias: None, |
| 724 | blob: None, |
| 725 | }; |
| 726 | if is_su { |
| 727 | assert!(check_grant_permission(&sctx, NOT_GRANT_PERMS, &key).is_ok()); |
| 728 | // attempts to grant the grant permission must always fail even when privileged. |
| 729 | assert_perm_failed!(check_grant_permission(&sctx, KeyPerm::grant().into(), &key)); |
| 730 | } else { |
| 731 | // unprivileged grant attempts always fail. shell does not have the grant permission. |
| 732 | assert_perm_failed!(check_grant_permission(&sctx, UNPRIV_PERMS, &key)); |
| 733 | } |
| 734 | Ok(()) |
| 735 | } |
| 736 | |
| 737 | #[test] |
| 738 | fn check_key_permission_domain_grant() -> Result<()> { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 739 | let key = KeyDescriptor { domain: Domain::GRANT, nspace: 0, alias: None, blob: None }; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 740 | |
| 741 | assert_perm_failed!(check_key_permission( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 742 | 0, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 743 | &selinux::Context::new("ignored").unwrap(), |
| 744 | KeyPerm::grant(), |
| 745 | &key, |
| 746 | &Some(UNPRIV_PERMS) |
| 747 | )); |
| 748 | |
| 749 | check_key_permission( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 750 | 0, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 751 | &selinux::Context::new("ignored").unwrap(), |
| 752 | KeyPerm::use_(), |
| 753 | &key, |
| 754 | &Some(ALL_PERMS), |
| 755 | ) |
| 756 | } |
| 757 | |
| 758 | #[test] |
| 759 | fn check_key_permission_domain_app() -> Result<()> { |
| 760 | let system_server_ctx = Context::new("u:r:system_server:s0")?; |
| 761 | let shell_ctx = Context::new("u:r:shell:s0")?; |
| 762 | let gmscore_app = Context::new("u:r:gmscore_app:s0")?; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 763 | |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 764 | let key = KeyDescriptor { domain: Domain::APP, nspace: 0, alias: None, blob: None }; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 765 | |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 766 | assert!(check_key_permission(0, &system_server_ctx, KeyPerm::use_(), &key, &None).is_ok()); |
| 767 | assert!(check_key_permission(0, &system_server_ctx, KeyPerm::delete(), &key, &None).is_ok()); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 768 | assert!( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 769 | check_key_permission(0, &system_server_ctx, KeyPerm::get_info(), &key, &None).is_ok() |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 770 | ); |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 771 | assert!(check_key_permission(0, &system_server_ctx, KeyPerm::rebind(), &key, &None).is_ok()); |
| 772 | assert!(check_key_permission(0, &system_server_ctx, KeyPerm::update(), &key, &None).is_ok()); |
| 773 | assert!(check_key_permission(0, &system_server_ctx, KeyPerm::grant(), &key, &None).is_ok()); |
| 774 | assert!( |
| 775 | check_key_permission(0, &system_server_ctx, KeyPerm::use_dev_id(), &key, &None).is_ok() |
| 776 | ); |
| 777 | assert!( |
| 778 | check_key_permission(0, &gmscore_app, KeyPerm::gen_unique_id(), &key, &None).is_ok() |
| 779 | ); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 780 | |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 781 | assert!(check_key_permission(0, &shell_ctx, KeyPerm::use_(), &key, &None).is_ok()); |
| 782 | assert!(check_key_permission(0, &shell_ctx, KeyPerm::delete(), &key, &None).is_ok()); |
| 783 | assert!(check_key_permission(0, &shell_ctx, KeyPerm::get_info(), &key, &None).is_ok()); |
| 784 | assert!(check_key_permission(0, &shell_ctx, KeyPerm::rebind(), &key, &None).is_ok()); |
| 785 | assert!(check_key_permission(0, &shell_ctx, KeyPerm::update(), &key, &None).is_ok()); |
| 786 | assert_perm_failed!(check_key_permission(0, &shell_ctx, KeyPerm::grant(), &key, &None)); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 787 | assert_perm_failed!(check_key_permission( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 788 | 0, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 789 | &shell_ctx, |
| 790 | KeyPerm::req_forced_op(), |
| 791 | &key, |
| 792 | &None |
| 793 | )); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 794 | assert_perm_failed!(check_key_permission( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 795 | 0, |
| 796 | &shell_ctx, |
| 797 | KeyPerm::manage_blob(), |
| 798 | &key, |
| 799 | &None |
| 800 | )); |
| 801 | assert_perm_failed!(check_key_permission( |
| 802 | 0, |
| 803 | &shell_ctx, |
| 804 | KeyPerm::use_dev_id(), |
| 805 | &key, |
| 806 | &None |
| 807 | )); |
| 808 | assert_perm_failed!(check_key_permission( |
| 809 | 0, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 810 | &shell_ctx, |
| 811 | KeyPerm::gen_unique_id(), |
| 812 | &key, |
| 813 | &None |
| 814 | )); |
| 815 | |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 816 | // Also make sure that the permission fails if the caller is not the owner. |
| 817 | assert_perm_failed!(check_key_permission( |
| 818 | 1, // the owner is 0 |
| 819 | &system_server_ctx, |
| 820 | KeyPerm::use_(), |
| 821 | &key, |
| 822 | &None |
| 823 | )); |
| 824 | // Unless there was a grant. |
| 825 | assert!(check_key_permission( |
| 826 | 1, |
| 827 | &system_server_ctx, |
| 828 | KeyPerm::use_(), |
| 829 | &key, |
| 830 | &Some(key_perm_set![KeyPerm::use_()]) |
| 831 | ) |
| 832 | .is_ok()); |
| 833 | // But fail if the grant did not cover the requested permission. |
| 834 | assert_perm_failed!(check_key_permission( |
| 835 | 1, |
| 836 | &system_server_ctx, |
| 837 | KeyPerm::use_(), |
| 838 | &key, |
| 839 | &Some(key_perm_set![KeyPerm::get_info()]) |
| 840 | )); |
| 841 | |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 842 | Ok(()) |
| 843 | } |
| 844 | |
| 845 | #[test] |
| 846 | fn check_key_permission_domain_selinux() -> Result<()> { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 847 | let (sctx, namespace, is_su) = check_context()?; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 848 | let key = KeyDescriptor { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 849 | domain: Domain::SELINUX, |
| 850 | nspace: namespace as i64, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 851 | alias: None, |
| 852 | blob: None, |
| 853 | }; |
| 854 | |
| 855 | if is_su { |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 856 | assert!(check_key_permission(0, &sctx, KeyPerm::use_(), &key, &None).is_ok()); |
| 857 | assert!(check_key_permission(0, &sctx, KeyPerm::delete(), &key, &None).is_ok()); |
| 858 | assert!(check_key_permission(0, &sctx, KeyPerm::get_info(), &key, &None).is_ok()); |
| 859 | assert!(check_key_permission(0, &sctx, KeyPerm::rebind(), &key, &None).is_ok()); |
| 860 | assert!(check_key_permission(0, &sctx, KeyPerm::update(), &key, &None).is_ok()); |
| 861 | assert!(check_key_permission(0, &sctx, KeyPerm::grant(), &key, &None).is_ok()); |
| 862 | assert!(check_key_permission(0, &sctx, KeyPerm::manage_blob(), &key, &None).is_ok()); |
| 863 | assert!(check_key_permission(0, &sctx, KeyPerm::use_dev_id(), &key, &None).is_ok()); |
| 864 | assert!(check_key_permission(0, &sctx, KeyPerm::gen_unique_id(), &key, &None).is_ok()); |
| 865 | assert!(check_key_permission(0, &sctx, KeyPerm::req_forced_op(), &key, &None).is_ok()); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 866 | } else { |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 867 | assert!(check_key_permission(0, &sctx, KeyPerm::use_(), &key, &None).is_ok()); |
| 868 | assert!(check_key_permission(0, &sctx, KeyPerm::delete(), &key, &None).is_ok()); |
| 869 | assert!(check_key_permission(0, &sctx, KeyPerm::get_info(), &key, &None).is_ok()); |
| 870 | assert!(check_key_permission(0, &sctx, KeyPerm::rebind(), &key, &None).is_ok()); |
| 871 | assert!(check_key_permission(0, &sctx, KeyPerm::update(), &key, &None).is_ok()); |
| 872 | assert_perm_failed!(check_key_permission(0, &sctx, KeyPerm::grant(), &key, &None)); |
| 873 | assert_perm_failed!(check_key_permission( |
| 874 | 0, |
| 875 | &sctx, |
| 876 | KeyPerm::req_forced_op(), |
| 877 | &key, |
| 878 | &None |
| 879 | )); |
| 880 | assert_perm_failed!(check_key_permission( |
| 881 | 0, |
| 882 | &sctx, |
| 883 | KeyPerm::manage_blob(), |
| 884 | &key, |
| 885 | &None |
| 886 | )); |
| 887 | assert_perm_failed!(check_key_permission(0, &sctx, KeyPerm::use_dev_id(), &key, &None)); |
| 888 | assert_perm_failed!(check_key_permission( |
| 889 | 0, |
| 890 | &sctx, |
| 891 | KeyPerm::gen_unique_id(), |
| 892 | &key, |
| 893 | &None |
| 894 | )); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 895 | } |
| 896 | Ok(()) |
| 897 | } |
| 898 | |
| 899 | #[test] |
| 900 | fn check_key_permission_domain_blob() -> Result<()> { |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 901 | let (sctx, namespace, is_su) = check_context()?; |
Janis Danisevskis | 1b3a6e2 | 2020-08-07 12:39:56 -0700 | [diff] [blame] | 902 | let key = KeyDescriptor { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 903 | domain: Domain::BLOB, |
| 904 | nspace: namespace as i64, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 905 | alias: None, |
| 906 | blob: None, |
| 907 | }; |
| 908 | |
| 909 | if is_su { |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 910 | check_key_permission(0, &sctx, KeyPerm::use_(), &key, &None) |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 911 | } else { |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 912 | assert_perm_failed!(check_key_permission(0, &sctx, KeyPerm::use_(), &key, &None)); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 913 | Ok(()) |
| 914 | } |
| 915 | } |
| 916 | |
| 917 | #[test] |
| 918 | fn check_key_permission_domain_key_id() -> Result<()> { |
Janis Danisevskis | c5b210b | 2020-09-11 13:27:37 -0700 | [diff] [blame] | 919 | let key = KeyDescriptor { domain: Domain::KEY_ID, nspace: 0, alias: None, blob: None }; |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 920 | |
| 921 | assert_eq!( |
| 922 | Some(&KsError::sys()), |
| 923 | check_key_permission( |
Janis Danisevskis | 4576002 | 2021-01-19 16:34:10 -0800 | [diff] [blame] | 924 | 0, |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 925 | &selinux::Context::new("ignored").unwrap(), |
| 926 | KeyPerm::use_(), |
| 927 | &key, |
| 928 | &None |
| 929 | ) |
| 930 | .err() |
| 931 | .unwrap() |
| 932 | .root_cause() |
| 933 | .downcast_ref::<KsError>() |
| 934 | ); |
| 935 | Ok(()) |
| 936 | } |
| 937 | |
| 938 | #[test] |
| 939 | fn key_perm_set_all_test() { |
| 940 | let v = key_perm_set![ |
| 941 | KeyPerm::manage_blob(), |
| 942 | KeyPerm::delete(), |
| 943 | KeyPerm::use_dev_id(), |
| 944 | KeyPerm::req_forced_op(), |
| 945 | KeyPerm::gen_unique_id(), |
| 946 | KeyPerm::grant(), |
| 947 | KeyPerm::get_info(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 948 | KeyPerm::rebind(), |
| 949 | KeyPerm::update(), |
| 950 | KeyPerm::use_() // Test if the macro accepts missing comma at the end of the list. |
| 951 | ]; |
| 952 | let mut i = v.into_iter(); |
| 953 | assert_eq!(i.next().unwrap().to_selinux(), "delete"); |
| 954 | assert_eq!(i.next().unwrap().to_selinux(), "gen_unique_id"); |
| 955 | assert_eq!(i.next().unwrap().to_selinux(), "get_info"); |
| 956 | assert_eq!(i.next().unwrap().to_selinux(), "grant"); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 957 | assert_eq!(i.next().unwrap().to_selinux(), "manage_blob"); |
| 958 | assert_eq!(i.next().unwrap().to_selinux(), "rebind"); |
| 959 | assert_eq!(i.next().unwrap().to_selinux(), "req_forced_op"); |
| 960 | assert_eq!(i.next().unwrap().to_selinux(), "update"); |
| 961 | assert_eq!(i.next().unwrap().to_selinux(), "use"); |
| 962 | assert_eq!(i.next().unwrap().to_selinux(), "use_dev_id"); |
| 963 | assert_eq!(None, i.next()); |
| 964 | } |
| 965 | #[test] |
| 966 | fn key_perm_set_sparse_test() { |
| 967 | let v = key_perm_set![ |
| 968 | KeyPerm::manage_blob(), |
| 969 | KeyPerm::req_forced_op(), |
| 970 | KeyPerm::gen_unique_id(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 971 | KeyPerm::update(), |
| 972 | KeyPerm::use_(), // Test if macro accepts the comma at the end of the list. |
| 973 | ]; |
| 974 | let mut i = v.into_iter(); |
| 975 | assert_eq!(i.next().unwrap().to_selinux(), "gen_unique_id"); |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 976 | assert_eq!(i.next().unwrap().to_selinux(), "manage_blob"); |
| 977 | assert_eq!(i.next().unwrap().to_selinux(), "req_forced_op"); |
| 978 | assert_eq!(i.next().unwrap().to_selinux(), "update"); |
| 979 | assert_eq!(i.next().unwrap().to_selinux(), "use"); |
| 980 | assert_eq!(None, i.next()); |
| 981 | } |
| 982 | #[test] |
| 983 | fn key_perm_set_empty_test() { |
| 984 | let v = key_perm_set![]; |
| 985 | let mut i = v.into_iter(); |
| 986 | assert_eq!(None, i.next()); |
| 987 | } |
| 988 | #[test] |
| 989 | fn key_perm_set_include_subset_test() { |
| 990 | let v1 = key_perm_set![ |
| 991 | KeyPerm::manage_blob(), |
| 992 | KeyPerm::delete(), |
| 993 | KeyPerm::use_dev_id(), |
| 994 | KeyPerm::req_forced_op(), |
| 995 | KeyPerm::gen_unique_id(), |
| 996 | KeyPerm::grant(), |
| 997 | KeyPerm::get_info(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 998 | KeyPerm::rebind(), |
| 999 | KeyPerm::update(), |
| 1000 | KeyPerm::use_(), |
| 1001 | ]; |
| 1002 | let v2 = key_perm_set![ |
| 1003 | KeyPerm::manage_blob(), |
| 1004 | KeyPerm::delete(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1005 | KeyPerm::rebind(), |
| 1006 | KeyPerm::update(), |
| 1007 | KeyPerm::use_(), |
| 1008 | ]; |
| 1009 | assert!(v1.includes(v2)); |
| 1010 | assert!(!v2.includes(v1)); |
| 1011 | } |
| 1012 | #[test] |
| 1013 | fn key_perm_set_include_equal_test() { |
| 1014 | let v1 = key_perm_set![ |
| 1015 | KeyPerm::manage_blob(), |
| 1016 | KeyPerm::delete(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1017 | KeyPerm::rebind(), |
| 1018 | KeyPerm::update(), |
| 1019 | KeyPerm::use_(), |
| 1020 | ]; |
| 1021 | let v2 = key_perm_set![ |
| 1022 | KeyPerm::manage_blob(), |
| 1023 | KeyPerm::delete(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1024 | KeyPerm::rebind(), |
| 1025 | KeyPerm::update(), |
| 1026 | KeyPerm::use_(), |
| 1027 | ]; |
| 1028 | assert!(v1.includes(v2)); |
| 1029 | assert!(v2.includes(v1)); |
| 1030 | } |
| 1031 | #[test] |
| 1032 | fn key_perm_set_include_overlap_test() { |
| 1033 | let v1 = key_perm_set![ |
| 1034 | KeyPerm::manage_blob(), |
| 1035 | KeyPerm::delete(), |
| 1036 | KeyPerm::grant(), // only in v1 |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1037 | KeyPerm::rebind(), |
| 1038 | KeyPerm::update(), |
| 1039 | KeyPerm::use_(), |
| 1040 | ]; |
| 1041 | let v2 = key_perm_set![ |
| 1042 | KeyPerm::manage_blob(), |
| 1043 | KeyPerm::delete(), |
| 1044 | KeyPerm::req_forced_op(), // only in v2 |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1045 | KeyPerm::rebind(), |
| 1046 | KeyPerm::update(), |
| 1047 | KeyPerm::use_(), |
| 1048 | ]; |
| 1049 | assert!(!v1.includes(v2)); |
| 1050 | assert!(!v2.includes(v1)); |
| 1051 | } |
| 1052 | #[test] |
| 1053 | fn key_perm_set_include_no_overlap_test() { |
| 1054 | let v1 = key_perm_set![KeyPerm::manage_blob(), KeyPerm::delete(), KeyPerm::grant(),]; |
| 1055 | let v2 = key_perm_set![ |
| 1056 | KeyPerm::req_forced_op(), |
Janis Danisevskis | 78bd48c | 2020-07-21 12:27:13 -0700 | [diff] [blame] | 1057 | KeyPerm::rebind(), |
| 1058 | KeyPerm::update(), |
| 1059 | KeyPerm::use_(), |
| 1060 | ]; |
| 1061 | assert!(!v1.includes(v2)); |
| 1062 | assert!(!v2.includes(v1)); |
| 1063 | } |
| 1064 | } |