const SizeofUvmexp = 0x158

type Uvmexp struct {
	Pagesize           int32
	Pagemask           int32
	Pageshift          int32
	Npages             int32
	Free               int32
	Active             int32
	Inactive           int32
	Paging             int32
	Wired              int32
	Zeropages          int32
	Reserve_pagedaemon int32
	Reserve_kernel     int32
	Unused01           int32
	Vnodepages         int32

const SizeofUvmexp = 0x158

type Uvmexp struct {
	Pagesize           int32
	Pagemask           int32
	Pageshift          int32
	Npages             int32
	Free               int32
	Active             int32
	Inactive           int32
	Paging             int32
	Wired              int32
	Zeropages          int32
	Reserve_pagedaemon int32
	Reserve_kernel     int32
	Unused01           int32
	Vnodepages         int32

const SizeofUvmexp = 0x158

type Uvmexp struct {
	Pagesize           int32
	Pagemask           int32
	Pageshift          int32
	Npages             int32
	Free               int32
	Active             int32
	Inactive           int32
	Paging             int32
	Wired              int32
	Zeropages          int32
	Reserve_pagedaemon int32
	Reserve_kernel     int32
	Unused01           int32
	Vnodepages         int32

const SizeofUvmexp = 0x278

type Uvmexp struct {
	Pagesize           int64
	Pagemask           int64
	Pageshift          int64
	Npages             int64
	Free               int64
	Active             int64
	Inactive           int64
	Paging             int64
	Wired              int64
	Zeropages          int64
	Reserve_pagedaemon int64
	Reserve_kernel     int64
	Freemin            int64
	Freetarg           int64

const SizeofUvmexp = 0x278

type Uvmexp struct {
	Pagesize           int64
	Pagemask           int64
	Pageshift          int64
	Npages             int64
	Free               int64
	Active             int64
	Inactive           int64
	Paging             int64
	Wired              int64
	Zeropages          int64
	Reserve_pagedaemon int64
	Reserve_kernel     int64
	Freemin            int64
	Freetarg           int64

const SizeofUvmexp = 0x278

type Uvmexp struct {
	Pagesize           int64
	Pagemask           int64
	Pageshift          int64
	Npages             int64
	Free               int64
	Active             int64
	Inactive           int64
	Paging             int64
	Wired              int64
	Zeropages          int64
	Reserve_pagedaemon int64
	Reserve_kernel     int64
	Freemin            int64
	Freetarg           int64

```

### 🔕 👩‍💻

🔜 🔄 ⏮️ 🔕 👩‍💻, 🔓 ⏮️:

👩‍💻: `alice`

🔐: `secret2`

& 🔄 ⚙️ 🛠️ `GET` ⏮️ ➡ `/users/me`.

👆 🔜 🤚 "🔕 👩‍💻" ❌, 💖:

```JSON
{
  "detail": "Inactive user"
}
```

## 🌃

👆 🔜 ✔️ 🧰 🛠️ 🏁 💂‍♂ ⚙️ ⚓️ 🔛 `username` & `password` 👆 🛠️.

⚙️ 👫 🧰, 👆 💪 ⚒ 💂‍♂ ⚙️ 🔗 ⏮️ 🙆 💽 & ⏮️ 🙆 👩‍💻 ⚖️ 💽 🏷.

🕴 ℹ ❌ 👈 ⚫️ 🚫 🤙 "🔐".

}
```

### 未激活用户

测试未激活用户，输入以下信息，进行身份验证：

用户名：`alice`

密码：`secret2`

然后，执行 `/users/me` 路径的 `GET` 操作。

显示下列**未激活用户**错误信息：

```JSON
{
  "detail": "Inactive user"
}
```

## 小结

使用本章的工具实现基于 `username` 和 `password` 的完整 API 安全系统。

这些工具让安全系统兼容任何数据库、用户及数据模型。

唯一欠缺的是，它仍然不是真的**安全**。