1 use crate::{
2 driver::base::{
3 class::Class,
4 device::{device_manager, Device},
5 kobject::KObject,
6 },
7 filesystem::{
8 sysfs::{
9 file::sysfs_emit_str, Attribute, AttributeGroup, SysFSOpsSupport, SYSFS_ATTR_MODE_RO,
10 SYSFS_ATTR_MODE_RW,
11 },
12 vfs::syscall::ModeType,
13 },
14 };
15 use alloc::sync::Arc;
16 use intertrait::cast::CastArc;
17 use log::error;
18 use system_error::SystemError;
19
20 use super::{class::sys_class_net_instance, NetDeivceState, NetDevice, Operstate};
21
22 /// 将设备注册到`/sys/class/net`目录下
23 /// 参考：https://code.dragonos.org.cn/xref/linux-2.6.39/net/core/net-sysfs.c?fi=netdev_register_kobject#1311
netdev_register_kobject(dev: Arc<dyn NetDevice>) -> Result<(), SystemError>24 pub fn netdev_register_kobject(dev: Arc<dyn NetDevice>) -> Result<(), SystemError> {
25 // 初始化设备
26 device_manager().device_default_initialize(&(dev.clone() as Arc<dyn Device>));
27
28 // 设置dev的class为net
29 dev.set_class(Some(Arc::downgrade(
30 &(sys_class_net_instance().cloned().unwrap() as Arc<dyn Class>),
31 )));
32
33 // 设置设备的kobject名
34 dev.set_name(dev.iface_name().clone());
35
36 device_manager().add_device(dev.clone() as Arc<dyn Device>)?;
37
38 return Ok(());
39 }
40
41 // 参考：https://code.dragonos.org.cn/xref/linux-6.6.21/net/core/net-sysfs.c
42 #[derive(Debug)]
43 pub struct NetAttrGroup;
44
45 impl AttributeGroup for NetAttrGroup {
name(&self) -> Option<&str>46 fn name(&self) -> Option<&str> {
47 None
48 }
49
attrs(&self) -> &[&'static dyn Attribute]50 fn attrs(&self) -> &[&'static dyn Attribute] {
51 &[
52 &AttrAddrAssignType,
53 &AttrAddrLen,
54 &AttrDevId,
55 &AttrIfalias,
56 &AttrIflink,
57 &AttrIfindex,
58 &AttrFeatrues,
59 &AttrType,
60 &AttrLinkMode,
61 &AttrAddress,
62 &AttrBroadcast,
63 &AttrCarrier,
64 &AttrSpeed,
65 &AttrDuplex,
66 &AttrDormant,
67 &AttrOperstate,
68 &AttrMtu,
69 &AttrFlags,
70 &AttrTxQueueLen,
71 &AttrNetdevGroup,
72 ]
73 }
74
is_visible( &self, _kobj: Arc<dyn KObject>, attr: &'static dyn Attribute, ) -> Option<ModeType>75 fn is_visible(
76 &self,
77 _kobj: Arc<dyn KObject>,
78 attr: &'static dyn Attribute,
79 ) -> Option<ModeType> {
80 return Some(attr.mode());
81 }
82 }
83
84 /// # 表示网络接口的MAC地址是如何分配的
85 /// - 0(NET_ADDR_PERM): 永久的MAC地址（默认值）
86 /// - 1(NET_ADDR_RANDOM): 随机生成的MAC地址
87 /// - 2(NET_ADDR_STOLEN): 从其他设备中获取的MAC地址
88 /// - 3(NET_ADDR_SET): 由用户设置的MAC地址
89 #[derive(Debug)]
90 struct AttrAddrAssignType;
91
92 impl Attribute for AttrAddrAssignType {
name(&self) -> &str93 fn name(&self) -> &str {
94 "addr_assign_type"
95 }
96
mode(&self) -> ModeType97 fn mode(&self) -> ModeType {
98 SYSFS_ATTR_MODE_RO
99 }
100
support(&self) -> SysFSOpsSupport101 fn support(&self) -> SysFSOpsSupport {
102 SysFSOpsSupport::ATTR_SHOW
103 }
104
show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError>105 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {
106 let net_device = kobj.cast::<dyn NetDevice>().map_err(|_| {
107 error!("AttrAddrAssignType::show() failed: kobj is not a NetDevice");
108 SystemError::EINVAL
109 })?;
110 let addr_assign_type = net_device.addr_assign_type();
111 sysfs_emit_str(buf, &format!("{}\n", addr_assign_type))
112 }
113 }
114
115 /// # 表示网络接口的MAC地址的长度，以字节为单位
116 #[derive(Debug)]
117 struct AttrAddrLen;
118
119 impl Attribute for AttrAddrLen {
name(&self) -> &str120 fn name(&self) -> &str {
121 "addr_len"
122 }
123
mode(&self) -> ModeType124 fn mode(&self) -> ModeType {
125 SYSFS_ATTR_MODE_RO
126 }
127
support(&self) -> SysFSOpsSupport128 fn support(&self) -> SysFSOpsSupport {
129 SysFSOpsSupport::ATTR_SHOW
130 }
131
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>132 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
133 todo!("AttrAddrLen::show")
134 }
135 }
136
137 /// # 表示网络接口的设备ID，是一个十六进制数
138 #[derive(Debug)]
139 struct AttrDevId;
140
141 impl Attribute for AttrDevId {
name(&self) -> &str142 fn name(&self) -> &str {
143 "dev_id"
144 }
145
mode(&self) -> ModeType146 fn mode(&self) -> ModeType {
147 SYSFS_ATTR_MODE_RO
148 }
149
support(&self) -> SysFSOpsSupport150 fn support(&self) -> SysFSOpsSupport {
151 SysFSOpsSupport::ATTR_SHOW
152 }
153
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>154 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
155 todo!("AttrDevId::show")
156 }
157 }
158
159 /// # 表示网络接口的别名，可以设置
160 #[derive(Debug)]
161 struct AttrIfalias;
162
163 impl Attribute for AttrIfalias {
name(&self) -> &str164 fn name(&self) -> &str {
165 "ifalias"
166 }
167
mode(&self) -> ModeType168 fn mode(&self) -> ModeType {
169 SYSFS_ATTR_MODE_RW
170 }
171
support(&self) -> SysFSOpsSupport172 fn support(&self) -> SysFSOpsSupport {
173 SysFSOpsSupport::ATTR_SHOW | SysFSOpsSupport::ATTR_STORE
174 }
175
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>176 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
177 todo!("AttrIfalias::show")
178 }
179
store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError>180 fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {
181 todo!("AttrIfalias::store")
182 }
183 }
184
185 /// # 表示网络接口的链路索引，用于表示网络接口在系统中的位置
186 #[derive(Debug)]
187 struct AttrIflink;
188
189 impl Attribute for AttrIflink {
name(&self) -> &str190 fn name(&self) -> &str {
191 "iflink"
192 }
193
mode(&self) -> ModeType194 fn mode(&self) -> ModeType {
195 SYSFS_ATTR_MODE_RO
196 }
197
support(&self) -> SysFSOpsSupport198 fn support(&self) -> SysFSOpsSupport {
199 SysFSOpsSupport::ATTR_SHOW
200 }
201
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>202 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
203 todo!("AttrIflink::show")
204 }
205 }
206
207 /// # 标识网络接口的索引
208 #[derive(Debug)]
209 struct AttrIfindex;
210
211 impl Attribute for AttrIfindex {
name(&self) -> &str212 fn name(&self) -> &str {
213 "ifindex"
214 }
215
mode(&self) -> ModeType216 fn mode(&self) -> ModeType {
217 SYSFS_ATTR_MODE_RO
218 }
219
support(&self) -> SysFSOpsSupport220 fn support(&self) -> SysFSOpsSupport {
221 SysFSOpsSupport::ATTR_SHOW
222 }
223
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>224 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
225 todo!("AttrIfindex::show")
226 }
227 }
228
229 /// # 用于显示网络接口支持的特性，这些特性通常由网络驱动程序和硬件能力决定
230 #[derive(Debug)]
231 struct AttrFeatrues;
232
233 impl Attribute for AttrFeatrues {
name(&self) -> &str234 fn name(&self) -> &str {
235 "features"
236 }
237
mode(&self) -> ModeType238 fn mode(&self) -> ModeType {
239 SYSFS_ATTR_MODE_RO
240 }
241
support(&self) -> SysFSOpsSupport242 fn support(&self) -> SysFSOpsSupport {
243 SysFSOpsSupport::ATTR_SHOW
244 }
245
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>246 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
247 todo!("AttrFeatrues::show")
248 }
249 }
250
251 /// # 用于表示网络接口的类型
252 /// - 1：ARPHRD_ETHER 以太网接口
253 /// - 24：ARPHRD_LOOPBACK 回环接口
254 /// - 512：ARPHRD_IEEE80211_RADIOTAP IEEE 802.11 无线接口
255 /// - 768：ARPHRD_IEEE802154 IEEE 802.15.4 无线接口
256 /// - 769：ARPHRD_6LOWPAN 6LoWPAN接口
257 #[derive(Debug)]
258 struct AttrType;
259
260 impl Attribute for AttrType {
name(&self) -> &str261 fn name(&self) -> &str {
262 "type"
263 }
264
mode(&self) -> ModeType265 fn mode(&self) -> ModeType {
266 SYSFS_ATTR_MODE_RO
267 }
268
support(&self) -> SysFSOpsSupport269 fn support(&self) -> SysFSOpsSupport {
270 SysFSOpsSupport::ATTR_SHOW
271 }
272
show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError>273 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {
274 let net_deive = kobj.cast::<dyn NetDevice>().map_err(|_| {
275 error!("AttrType::show() failed: kobj is not a NetDevice");
276 SystemError::EINVAL
277 })?;
278 let net_type = net_deive.net_device_type();
279 sysfs_emit_str(buf, &format!("{}\n", net_type))
280 }
281 }
282
283 /// # 表示网络接口的链路模式，用于指示网络接口是否处于自动协商模式
284 /// - 0：表示网络接口处于自动协商模式
285 /// - 1：表示网络接口处于强制模式，即链路参数（如速度和双工模式）是手动配置的，而不是通过自动协商确定的
286 #[derive(Debug)]
287 struct AttrLinkMode;
288
289 impl Attribute for AttrLinkMode {
name(&self) -> &str290 fn name(&self) -> &str {
291 "link_mode"
292 }
293
mode(&self) -> ModeType294 fn mode(&self) -> ModeType {
295 SYSFS_ATTR_MODE_RO
296 }
297
support(&self) -> SysFSOpsSupport298 fn support(&self) -> SysFSOpsSupport {
299 SysFSOpsSupport::ATTR_SHOW
300 }
301
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>302 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
303 todo!("AttrLinkMode::show")
304 }
305 }
306
307 /// # 表示网络接口的MAC地址
308 #[derive(Debug)]
309 struct AttrAddress;
310
311 impl Attribute for AttrAddress {
name(&self) -> &str312 fn name(&self) -> &str {
313 "address"
314 }
315
mode(&self) -> ModeType316 fn mode(&self) -> ModeType {
317 SYSFS_ATTR_MODE_RO
318 }
319
support(&self) -> SysFSOpsSupport320 fn support(&self) -> SysFSOpsSupport {
321 SysFSOpsSupport::ATTR_SHOW
322 }
323
show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError>324 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {
325 let net_device = kobj.cast::<dyn NetDevice>().map_err(|_| {
326 error!("AttrAddress::show() failed: kobj is not a NetDevice");
327 SystemError::EINVAL
328 })?;
329 let mac_addr = net_device.mac();
330 sysfs_emit_str(buf, &format!("{}\n", mac_addr))
331 }
332 }
333
334 /// # 表示网络接口的广播地址
335 #[derive(Debug)]
336 struct AttrBroadcast;
337
338 impl Attribute for AttrBroadcast {
name(&self) -> &str339 fn name(&self) -> &str {
340 "broadcast"
341 }
342
mode(&self) -> ModeType343 fn mode(&self) -> ModeType {
344 SYSFS_ATTR_MODE_RO
345 }
346
support(&self) -> SysFSOpsSupport347 fn support(&self) -> SysFSOpsSupport {
348 SysFSOpsSupport::ATTR_SHOW
349 }
350
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>351 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
352 todo!("AttrBroadcast::show")
353 }
354 }
355
356 /// # 表示网络接口的物理链路状态
357 /// - 0：表示网络接口处于关闭状态
358 /// - 1：表示网络接口处于打开状态
359 #[derive(Debug)]
360 struct AttrCarrier;
361
362 impl Attribute for AttrCarrier {
name(&self) -> &str363 fn name(&self) -> &str {
364 "carrier"
365 }
366
mode(&self) -> ModeType367 fn mode(&self) -> ModeType {
368 SYSFS_ATTR_MODE_RO
369 }
370
support(&self) -> SysFSOpsSupport371 fn support(&self) -> SysFSOpsSupport {
372 SysFSOpsSupport::ATTR_SHOW
373 }
374
show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError>375 fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {
376 let net_device = kobj.cast::<dyn NetDevice>().map_err(|_| {
377 error!("AttrCarrier::show() failed: kobj is not a NetDevice");
378 SystemError::EINVAL
379 })?;
380 if net_device
381 .net_state()
382 .contains(NetDeivceState::__LINK_STATE_START)
383 && !net_device
384 .net_state()
385 .contains(NetDeivceState::__LINK_STATE_NOCARRIER)
386 {
387 sysfs_emit_str(buf, "1\n")
388 } else {
389 sysfs_emit_str(buf, "0\n")
390 }
391 }
392 }
393
394 /// # 表示网络接口的当前连接速度，单位为Mbps
395 /// - 特殊值：-1，表示无法确定，通常是因为接口不支持查询速度或接口未连接
396 #[derive(Debug)]
397 struct AttrSpeed;
398
399 impl Attribute for AttrSpeed {
name(&self) -> &str400 fn name(&self) -> &str {
401 "speed"
402 }
403
mode(&self) -> ModeType404 fn mode(&self) -> ModeType {
405 SYSFS_ATTR_MODE_RO
406 }
407
support(&self) -> SysFSOpsSupport408 fn support(&self) -> SysFSOpsSupport {
409 SysFSOpsSupport::ATTR_SHOW
410 }
411
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>412 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
413 todo!("AttrSpeed::show")
414 }
415 }
416
417 /// # 表示网络接口的双工模式
418 /// - half：半双工，网络接口不能同时发送和接收数据
419 /// - full：全双工，网络接口可以同时发送和接收数据
420 /// - unknown：未知，通常表示接口未连接或无法确定双工模式
421 #[derive(Debug)]
422 struct AttrDuplex;
423
424 impl Attribute for AttrDuplex {
name(&self) -> &str425 fn name(&self) -> &str {
426 "duplex"
427 }
428
mode(&self) -> ModeType429 fn mode(&self) -> ModeType {
430 SYSFS_ATTR_MODE_RO
431 }
432
support(&self) -> SysFSOpsSupport433 fn support(&self) -> SysFSOpsSupport {
434 SysFSOpsSupport::ATTR_SHOW
435 }
436
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>437 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
438 todo!("AttrDuplex::show")
439 }
440 }
441
442 /// 表示网络接口是否处于休眠状态
443 /// - 0：表示网络接口未处于休眠状态
444 /// - 1：表示网络接口处于休眠状态
445 #[derive(Debug)]
446 struct AttrDormant;
447
448 impl Attribute for AttrDormant {
name(&self) -> &str449 fn name(&self) -> &str {
450 "dormant"
451 }
452
mode(&self) -> ModeType453 fn mode(&self) -> ModeType {
454 SYSFS_ATTR_MODE_RO
455 }
456
support(&self) -> SysFSOpsSupport457 fn support(&self) -> SysFSOpsSupport {
458 SysFSOpsSupport::ATTR_SHOW
459 }
460
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>461 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
462 todo!("AttrDormant::show")
463 }
464 }
465
466 /// # 表示网络接口的操作状态
467 /// - up：网络接口已启用并且正在运行
468 /// - down：网络接口已禁用或未连接
469 /// - dormant：网络接口处于休眠状态，等待某些条件满足后激活
470 /// - testing：网络接口正在测试中
471 /// - unknown：网络接口的状态未知
472 /// - notpresent：网络接口硬件不存在
473 /// - lowerlayerdown：网络接口的底层设备未启用
474 /// - inactive：网络接口未激活
475 #[derive(Debug)]
476 struct AttrOperstate;
477
478 impl Attribute for AttrOperstate {
name(&self) -> &str479 fn name(&self) -> &str {
480 "operstate"
481 }
482
mode(&self) -> ModeType483 fn mode(&self) -> ModeType {
484 SYSFS_ATTR_MODE_RO
485 }
486
support(&self) -> SysFSOpsSupport487 fn support(&self) -> SysFSOpsSupport {
488 SysFSOpsSupport::ATTR_SHOW
489 }
490
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>491 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
492 let net_device = _kobj.cast::<dyn NetDevice>().map_err(|_| {
493 error!("AttrOperstate::show() failed: kobj is not a NetDevice");
494 SystemError::EINVAL
495 })?;
496 if !net_device
497 .net_state()
498 .contains(NetDeivceState::__LINK_STATE_START)
499 {
500 net_device.set_operstate(Operstate::IF_OPER_DOWN);
501 }
502
503 let operstate_str = match net_device.operstate() {
504 Operstate::IF_OPER_UP => "up",
505 Operstate::IF_OPER_DOWN => "down",
506 Operstate::IF_OPER_DORMANT => "dormant",
507 Operstate::IF_OPER_TESTING => "testing",
508 Operstate::IF_OPER_UNKNOWN => "unknown",
509 Operstate::IF_OPER_NOTPRESENT => "notpresent",
510 Operstate::IF_OPER_LOWERLAYERDOWN => "lowerlayerdown",
511 };
512
513 sysfs_emit_str(_buf, &format!("{}\n", operstate_str))
514 }
515 }
516
517 /// # 表示网络接口的最大传输单元
518 #[derive(Debug)]
519 struct AttrMtu;
520
521 impl Attribute for AttrMtu {
name(&self) -> &str522 fn name(&self) -> &str {
523 "mtu"
524 }
525
mode(&self) -> ModeType526 fn mode(&self) -> ModeType {
527 SYSFS_ATTR_MODE_RO
528 }
529
support(&self) -> SysFSOpsSupport530 fn support(&self) -> SysFSOpsSupport {
531 SysFSOpsSupport::ATTR_SHOW
532 }
533
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>534 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
535 todo!("AttrMtu::show")
536 }
537
store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError>538 fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {
539 todo!("AttrMtu::store")
540 }
541 }
542
543 /// # 表示网络接口的标志，这些标志提供了关于网络接口状态和配置的详细信息
544 /// - IFF_UP(0x1)：接口已启用
545 /// - IFF_BROADCAST(0x2)：支持广播
546 /// - IFF_DEBUG(0x4)：调试模式
547 /// - IFF_LOOPBACK(0x8)：环回接口
548 /// - IFF_POINTOPOINT(0x10)：点对点链路
549 /// - IFF_NOTRAILERS(0x20)：禁用拖尾
550 /// - IFF_RUNNING(0x40)：资源已分配
551 /// - IFF_NOARP(0x80)：无ARP协议
552 /// - IFF_PROMISC(0x100)：混杂模式
553 /// - IFF_ALLMULTI(0x200)：接收所有多播放数据包
554 /// - IFF_ MASTER(0x400)：主设备
555 /// - IFF_SLAVE(0x800)：从设备
556 /// - IFF_MULTICAST(0x1000)：支持多播
557 /// - IFF_PORTSEL(0x2000)：可以选择媒体类型
558 /// - IFF_AUTOMEDIA(0x4000)：自动选择媒体类型
559 /// - IFF_DYNAMIC(0x8000)：动态接口
560 #[derive(Debug)]
561 struct AttrFlags;
562
563 impl Attribute for AttrFlags {
name(&self) -> &str564 fn name(&self) -> &str {
565 "flags"
566 }
567
mode(&self) -> ModeType568 fn mode(&self) -> ModeType {
569 SYSFS_ATTR_MODE_RO
570 }
571
support(&self) -> SysFSOpsSupport572 fn support(&self) -> SysFSOpsSupport {
573 SysFSOpsSupport::ATTR_SHOW
574 }
575
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>576 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
577 todo!("AttrFlags::show")
578 }
579
store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError>580 fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {
581 todo!("AttrFlags::store")
582 }
583 }
584
585 /// # 表示网络接口的传输队列长度
586 #[derive(Debug)]
587 struct AttrTxQueueLen;
588
589 impl Attribute for AttrTxQueueLen {
name(&self) -> &str590 fn name(&self) -> &str {
591 "tx_queue_len"
592 }
593
mode(&self) -> ModeType594 fn mode(&self) -> ModeType {
595 SYSFS_ATTR_MODE_RO
596 }
597
support(&self) -> SysFSOpsSupport598 fn support(&self) -> SysFSOpsSupport {
599 SysFSOpsSupport::ATTR_SHOW
600 }
601
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>602 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
603 todo!("AttrTxQueueLen::show")
604 }
605
store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError>606 fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {
607 todo!("AttrTxQueueLen::store")
608 }
609 }
610
611 /// # 表示网络设备所属的设备组
612 #[derive(Debug)]
613 struct AttrNetdevGroup;
614
615 impl Attribute for AttrNetdevGroup {
name(&self) -> &str616 fn name(&self) -> &str {
617 "netdev_group"
618 }
619
mode(&self) -> ModeType620 fn mode(&self) -> ModeType {
621 SYSFS_ATTR_MODE_RO
622 }
623
support(&self) -> SysFSOpsSupport624 fn support(&self) -> SysFSOpsSupport {
625 SysFSOpsSupport::ATTR_SHOW
626 }
627
show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError>628 fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {
629 todo!("AttrNetdevGroup::show")
630 }
631
store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError>632 fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {
633 todo!("AttrNetdevGroup::store")
634 }
635 }
636