1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 # 2 #
3 # Network configuration 3 # Network configuration
4 # 4 #
5 5
6 menuconfig NET 6 menuconfig NET
7 bool "Networking support" 7 bool "Networking support"
8 select NLATTR 8 select NLATTR
9 select GENERIC_NET_UTILS 9 select GENERIC_NET_UTILS
10 select BPF 10 select BPF
11 help !! 11 ---help---
12 Unless you really know what you are 12 Unless you really know what you are doing, you should say Y here.
13 The reason is that some programs nee 13 The reason is that some programs need kernel networking support even
14 when running on a stand-alone machin 14 when running on a stand-alone machine that isn't connected to any
15 other computer. 15 other computer.
16 16
17 If you are upgrading from an older k 17 If you are upgrading from an older kernel, you
18 should consider updating your networ 18 should consider updating your networking tools too because changes
19 in the kernel and the tools often go 19 in the kernel and the tools often go hand in hand. The tools are
20 contained in the package net-tools, 20 contained in the package net-tools, the location and version number
21 of which are given in <file:Document 21 of which are given in <file:Documentation/Changes>.
22 22
23 For a general introduction to Linux 23 For a general introduction to Linux networking, it is highly
24 recommended to read the NET-HOWTO, a 24 recommended to read the NET-HOWTO, available from
25 <http://www.tldp.org/docs.html#howto 25 <http://www.tldp.org/docs.html#howto>.
26 26
27 if NET 27 if NET
28 28
29 config WANT_COMPAT_NETLINK_MESSAGES 29 config WANT_COMPAT_NETLINK_MESSAGES
30 bool 30 bool
31 help 31 help
32 This option can be selected by other 32 This option can be selected by other options that need compat
33 netlink messages. 33 netlink messages.
34 34
35 config COMPAT_NETLINK_MESSAGES 35 config COMPAT_NETLINK_MESSAGES
36 def_bool y 36 def_bool y
37 depends on COMPAT 37 depends on COMPAT
38 depends on WEXT_CORE || WANT_COMPAT_NE 38 depends on WEXT_CORE || WANT_COMPAT_NETLINK_MESSAGES
39 help 39 help
40 This option makes it possible to sen 40 This option makes it possible to send different netlink messages
41 to tasks depending on whether the ta 41 to tasks depending on whether the task is a compat task or not. To
42 achieve this, you need to set skb_sh 42 achieve this, you need to set skb_shinfo(skb)->frag_list to the
43 compat skb before sending the skb, t 43 compat skb before sending the skb, the netlink code will sort out
44 which message to actually pass to th 44 which message to actually pass to the task.
45 45
46 Newly written code should NEVER need 46 Newly written code should NEVER need this option but do
47 compat-independent messages instead! 47 compat-independent messages instead!
48 48
49 config NET_INGRESS 49 config NET_INGRESS
50 bool 50 bool
51 51
52 config NET_EGRESS 52 config NET_EGRESS
53 bool 53 bool
54 54
55 config NET_XGRESS <<
56 select NET_INGRESS <<
57 select NET_EGRESS <<
58 bool <<
59 <<
60 config NET_REDIRECT <<
61 bool <<
62 <<
63 config SKB_DECRYPTED <<
64 bool <<
65 <<
66 config SKB_EXTENSIONS 55 config SKB_EXTENSIONS
67 bool 56 bool
68 57
69 config NET_DEVMEM <<
70 def_bool y <<
71 depends on DMA_SHARED_BUFFER <<
72 depends on GENERIC_ALLOCATOR <<
73 depends on PAGE_POOL <<
74 <<
75 menu "Networking options" 58 menu "Networking options"
76 59
77 source "net/packet/Kconfig" 60 source "net/packet/Kconfig"
78 source "net/unix/Kconfig" 61 source "net/unix/Kconfig"
79 source "net/tls/Kconfig" 62 source "net/tls/Kconfig"
80 source "net/xfrm/Kconfig" 63 source "net/xfrm/Kconfig"
81 source "net/iucv/Kconfig" 64 source "net/iucv/Kconfig"
82 source "net/smc/Kconfig" 65 source "net/smc/Kconfig"
83 source "net/xdp/Kconfig" 66 source "net/xdp/Kconfig"
84 67
85 config NET_HANDSHAKE <<
86 bool <<
87 depends on SUNRPC || NVME_TARGET_TCP | <<
88 default y <<
89 <<
90 config NET_HANDSHAKE_KUNIT_TEST <<
91 tristate "KUnit tests for the handshak <<
92 default KUNIT_ALL_TESTS <<
93 depends on KUNIT <<
94 help <<
95 This builds the KUnit tests for the <<
96 <<
97 KUnit tests run during boot and outp <<
98 log in TAP format (https://testanyth <<
99 kernel devs running KUnit test harne <<
100 into a production build. <<
101 <<
102 For more information on KUnit and un <<
103 to the KUnit documentation in Docume <<
104 <<
105 config INET 68 config INET
106 bool "TCP/IP networking" 69 bool "TCP/IP networking"
107 help !! 70 ---help---
108 These are the protocols used on the 71 These are the protocols used on the Internet and on most local
109 Ethernets. It is highly recommended 72 Ethernets. It is highly recommended to say Y here (this will enlarge
110 your kernel by about 400 KB), since 73 your kernel by about 400 KB), since some programs (e.g. the X window
111 system) use TCP/IP even if your mach 74 system) use TCP/IP even if your machine is not connected to any
112 other computer. You will get the so- 75 other computer. You will get the so-called loopback device which
113 allows you to ping yourself (great f 76 allows you to ping yourself (great fun, that!).
114 77
115 For an excellent introduction to Lin 78 For an excellent introduction to Linux networking, please read the
116 Linux Networking HOWTO, available fr 79 Linux Networking HOWTO, available from
117 <http://www.tldp.org/docs.html#howto 80 <http://www.tldp.org/docs.html#howto>.
118 81
119 If you say Y here and also to "/proc 82 If you say Y here and also to "/proc file system support" and
120 "Sysctl support" below, you can chan 83 "Sysctl support" below, you can change various aspects of the
121 behavior of the TCP/IP code by writi 84 behavior of the TCP/IP code by writing to the (virtual) files in
122 /proc/sys/net/ipv4/*; the options ar 85 /proc/sys/net/ipv4/*; the options are explained in the file
123 <file:Documentation/networking/ip-sy !! 86 <file:Documentation/networking/ip-sysctl.txt>.
124 87
125 Short answer: say Y. 88 Short answer: say Y.
126 89
127 if INET 90 if INET
128 source "net/ipv4/Kconfig" 91 source "net/ipv4/Kconfig"
129 source "net/ipv6/Kconfig" 92 source "net/ipv6/Kconfig"
130 source "net/netlabel/Kconfig" 93 source "net/netlabel/Kconfig"
131 source "net/mptcp/Kconfig" <<
132 94
133 endif # if INET 95 endif # if INET
134 96
135 config NETWORK_SECMARK 97 config NETWORK_SECMARK
136 bool "Security Marking" 98 bool "Security Marking"
137 help 99 help
138 This enables security marking of net 100 This enables security marking of network packets, similar
139 to nfmark, but designated for securi 101 to nfmark, but designated for security purposes.
140 If you are unsure how to answer this 102 If you are unsure how to answer this question, answer N.
141 103
142 config NET_PTP_CLASSIFY 104 config NET_PTP_CLASSIFY
143 def_bool n 105 def_bool n
144 106
145 config NETWORK_PHY_TIMESTAMPING 107 config NETWORK_PHY_TIMESTAMPING
146 bool "Timestamping in PHY devices" 108 bool "Timestamping in PHY devices"
147 select NET_PTP_CLASSIFY 109 select NET_PTP_CLASSIFY
148 help 110 help
149 This allows timestamping of network !! 111 This allows timestamping of network packets by PHYs with
150 other MII bus snooping devices) with !! 112 hardware timestamping capabilities. This option adds some
151 capabilities. This option adds some !! 113 overhead in the transmit and receive paths.
152 and receive paths. <<
153 114
154 If you are unsure how to answer this 115 If you are unsure how to answer this question, answer N.
155 116
156 menuconfig NETFILTER 117 menuconfig NETFILTER
157 bool "Network packet filtering framewo 118 bool "Network packet filtering framework (Netfilter)"
158 help !! 119 ---help---
159 Netfilter is a framework for filteri 120 Netfilter is a framework for filtering and mangling network packets
160 that pass through your Linux box. 121 that pass through your Linux box.
161 122
162 The most common use of packet filter 123 The most common use of packet filtering is to run your Linux box as
163 a firewall protecting a local networ 124 a firewall protecting a local network from the Internet. The type of
164 firewall provided by this kernel sup 125 firewall provided by this kernel support is called a "packet
165 filter", which means that it can rej 126 filter", which means that it can reject individual network packets
166 based on type, source, destination e 127 based on type, source, destination etc. The other kind of firewall,
167 a "proxy-based" one, is more secure 128 a "proxy-based" one, is more secure but more intrusive and more
168 bothersome to set up; it inspects th 129 bothersome to set up; it inspects the network traffic much more
169 closely, modifies it and has knowled 130 closely, modifies it and has knowledge about the higher level
170 protocols, which a packet filter lac 131 protocols, which a packet filter lacks. Moreover, proxy-based
171 firewalls often require changes to t 132 firewalls often require changes to the programs running on the local
172 clients. Proxy-based firewalls don't 133 clients. Proxy-based firewalls don't need support by the kernel, but
173 they are often combined with a packe 134 they are often combined with a packet filter, which only works if
174 you say Y here. 135 you say Y here.
175 136
176 You should also say Y here if you in 137 You should also say Y here if you intend to use your Linux box as
177 the gateway to the Internet for a lo 138 the gateway to the Internet for a local network of machines without
178 globally valid IP addresses. This is 139 globally valid IP addresses. This is called "masquerading": if one
179 of the computers on your local netwo 140 of the computers on your local network wants to send something to
180 the outside, your box can "masquerad 141 the outside, your box can "masquerade" as that computer, i.e. it
181 forwards the traffic to the intended 142 forwards the traffic to the intended outside destination, but
182 modifies the packets to make it look 143 modifies the packets to make it look like they came from the
183 firewall box itself. It works both w 144 firewall box itself. It works both ways: if the outside host
184 replies, the Linux box will silently 145 replies, the Linux box will silently forward the traffic to the
185 correct local computer. This way, th 146 correct local computer. This way, the computers on your local net
186 are completely invisible to the outs 147 are completely invisible to the outside world, even though they can
187 reach the outside and can receive re 148 reach the outside and can receive replies. It is even possible to
188 run globally visible servers from wi 149 run globally visible servers from within a masqueraded local network
189 using a mechanism called portforward 150 using a mechanism called portforwarding. Masquerading is also often
190 called NAT (Network Address Translat 151 called NAT (Network Address Translation).
191 152
192 Another use of Netfilter is in trans 153 Another use of Netfilter is in transparent proxying: if a machine on
193 the local network tries to connect t 154 the local network tries to connect to an outside host, your Linux
194 box can transparently forward the tr 155 box can transparently forward the traffic to a local server,
195 typically a caching proxy server. 156 typically a caching proxy server.
196 157
197 Yet another use of Netfilter is buil 158 Yet another use of Netfilter is building a bridging firewall. Using
198 a bridge with Network packet filteri 159 a bridge with Network packet filtering enabled makes iptables "see"
199 the bridged traffic. For filtering o 160 the bridged traffic. For filtering on the lower network and Ethernet
200 protocols over the bridge, use ebtab 161 protocols over the bridge, use ebtables (under bridge netfilter
201 configuration). 162 configuration).
202 163
203 Various modules exist for netfilter 164 Various modules exist for netfilter which replace the previous
204 masquerading (ipmasqadm), packet fil 165 masquerading (ipmasqadm), packet filtering (ipchains), transparent
205 proxying, and portforwarding mechani 166 proxying, and portforwarding mechanisms. Please see
206 <file:Documentation/Changes> under " 167 <file:Documentation/Changes> under "iptables" for the location of
207 these packages. 168 these packages.
208 169
209 if NETFILTER 170 if NETFILTER
210 171
211 config NETFILTER_ADVANCED 172 config NETFILTER_ADVANCED
212 bool "Advanced netfilter configuration 173 bool "Advanced netfilter configuration"
213 depends on NETFILTER 174 depends on NETFILTER
214 default y 175 default y
215 help 176 help
216 If you say Y here you can select bet 177 If you say Y here you can select between all the netfilter modules.
217 If you say N the more unusual ones w 178 If you say N the more unusual ones will not be shown and the
218 basic ones needed by most people wil 179 basic ones needed by most people will default to 'M'.
219 180
220 If unsure, say Y. 181 If unsure, say Y.
221 182
222 config BRIDGE_NETFILTER 183 config BRIDGE_NETFILTER
223 tristate "Bridged IP/ARP packets filte 184 tristate "Bridged IP/ARP packets filtering"
224 depends on BRIDGE 185 depends on BRIDGE
225 depends on NETFILTER && INET 186 depends on NETFILTER && INET
226 depends on NETFILTER_ADVANCED 187 depends on NETFILTER_ADVANCED
227 select NETFILTER_FAMILY_BRIDGE 188 select NETFILTER_FAMILY_BRIDGE
228 select SKB_EXTENSIONS 189 select SKB_EXTENSIONS
229 help !! 190 default m
>> 191 ---help---
230 Enabling this option will let arptab 192 Enabling this option will let arptables resp. iptables see bridged
231 ARP resp. IP traffic. If you want a 193 ARP resp. IP traffic. If you want a bridging firewall, you probably
232 want this option enabled. 194 want this option enabled.
233 Enabling or disabling this option do 195 Enabling or disabling this option doesn't enable or disable
234 ebtables. 196 ebtables.
235 197
236 If unsure, say N. 198 If unsure, say N.
237 199
238 source "net/netfilter/Kconfig" 200 source "net/netfilter/Kconfig"
239 source "net/ipv4/netfilter/Kconfig" 201 source "net/ipv4/netfilter/Kconfig"
240 source "net/ipv6/netfilter/Kconfig" 202 source "net/ipv6/netfilter/Kconfig"
>> 203 source "net/decnet/netfilter/Kconfig"
241 source "net/bridge/netfilter/Kconfig" 204 source "net/bridge/netfilter/Kconfig"
242 205
243 endif 206 endif
244 207
>> 208 source "net/bpfilter/Kconfig"
>> 209
245 source "net/dccp/Kconfig" 210 source "net/dccp/Kconfig"
246 source "net/sctp/Kconfig" 211 source "net/sctp/Kconfig"
247 source "net/rds/Kconfig" 212 source "net/rds/Kconfig"
248 source "net/tipc/Kconfig" 213 source "net/tipc/Kconfig"
249 source "net/atm/Kconfig" 214 source "net/atm/Kconfig"
250 source "net/l2tp/Kconfig" 215 source "net/l2tp/Kconfig"
251 source "net/802/Kconfig" 216 source "net/802/Kconfig"
252 source "net/bridge/Kconfig" 217 source "net/bridge/Kconfig"
253 source "net/dsa/Kconfig" 218 source "net/dsa/Kconfig"
254 source "net/8021q/Kconfig" 219 source "net/8021q/Kconfig"
>> 220 source "net/decnet/Kconfig"
255 source "net/llc/Kconfig" 221 source "net/llc/Kconfig"
256 source "net/appletalk/Kconfig" !! 222 source "drivers/net/appletalk/Kconfig"
257 source "net/x25/Kconfig" 223 source "net/x25/Kconfig"
258 source "net/lapb/Kconfig" 224 source "net/lapb/Kconfig"
259 source "net/phonet/Kconfig" 225 source "net/phonet/Kconfig"
260 source "net/6lowpan/Kconfig" 226 source "net/6lowpan/Kconfig"
261 source "net/ieee802154/Kconfig" 227 source "net/ieee802154/Kconfig"
262 source "net/mac802154/Kconfig" 228 source "net/mac802154/Kconfig"
263 source "net/sched/Kconfig" 229 source "net/sched/Kconfig"
264 source "net/dcb/Kconfig" 230 source "net/dcb/Kconfig"
265 source "net/dns_resolver/Kconfig" 231 source "net/dns_resolver/Kconfig"
266 source "net/batman-adv/Kconfig" 232 source "net/batman-adv/Kconfig"
267 source "net/openvswitch/Kconfig" 233 source "net/openvswitch/Kconfig"
268 source "net/vmw_vsock/Kconfig" 234 source "net/vmw_vsock/Kconfig"
269 source "net/netlink/Kconfig" 235 source "net/netlink/Kconfig"
270 source "net/mpls/Kconfig" 236 source "net/mpls/Kconfig"
271 source "net/nsh/Kconfig" 237 source "net/nsh/Kconfig"
272 source "net/hsr/Kconfig" 238 source "net/hsr/Kconfig"
273 source "net/switchdev/Kconfig" 239 source "net/switchdev/Kconfig"
274 source "net/l3mdev/Kconfig" 240 source "net/l3mdev/Kconfig"
275 source "net/qrtr/Kconfig" 241 source "net/qrtr/Kconfig"
276 source "net/ncsi/Kconfig" 242 source "net/ncsi/Kconfig"
277 243
278 config PCPU_DEV_REFCNT <<
279 bool "Use percpu variables to maintain <<
280 depends on SMP <<
281 default y <<
282 help <<
283 network device refcount are using pe <<
284 This can be forced to N to detect un <<
285 <<
286 config MAX_SKB_FRAGS <<
287 int "Maximum number of fragments per s <<
288 range 17 45 <<
289 default 17 <<
290 help <<
291 Having more fragments per skb_shared <<
292 This helps BIG TCP workloads, but mi <<
293 legacy drivers. <<
294 This also increases memory overhead <<
295 and in drivers using build_skb(). <<
296 If unsure, say 17. <<
297 <<
298 config RPS 244 config RPS
299 bool "Receive packet steering" !! 245 bool
300 depends on SMP && SYSFS 246 depends on SMP && SYSFS
301 default y 247 default y
302 help <<
303 Software receive side packet steerin <<
304 load of received packet processing a <<
305 248
306 config RFS_ACCEL 249 config RFS_ACCEL
307 bool "Hardware acceleration of RFS" !! 250 bool
308 depends on RPS 251 depends on RPS
309 select CPU_RMAP 252 select CPU_RMAP
310 default y 253 default y
311 help <<
312 Allowing drivers for multiqueue hard <<
313 accelerate RFS. <<
314 <<
315 config SOCK_RX_QUEUE_MAPPING <<
316 bool <<
317 254
318 config XPS 255 config XPS
319 bool 256 bool
320 depends on SMP 257 depends on SMP
321 select SOCK_RX_QUEUE_MAPPING <<
322 default y 258 default y
323 259
324 config HWBM 260 config HWBM
325 bool !! 261 bool
326 262
327 config CGROUP_NET_PRIO 263 config CGROUP_NET_PRIO
328 bool "Network priority cgroup" 264 bool "Network priority cgroup"
329 depends on CGROUPS 265 depends on CGROUPS
330 select SOCK_CGROUP_DATA 266 select SOCK_CGROUP_DATA
331 help !! 267 ---help---
332 Cgroup subsystem for use in assignin 268 Cgroup subsystem for use in assigning processes to network priorities on
333 a per-interface basis. 269 a per-interface basis.
334 270
335 config CGROUP_NET_CLASSID 271 config CGROUP_NET_CLASSID
336 bool "Network classid cgroup" 272 bool "Network classid cgroup"
337 depends on CGROUPS 273 depends on CGROUPS
338 select SOCK_CGROUP_DATA 274 select SOCK_CGROUP_DATA
339 help !! 275 ---help---
340 Cgroup subsystem for use as general 276 Cgroup subsystem for use as general purpose socket classid marker that is
341 being used in cls_cgroup and for net 277 being used in cls_cgroup and for netfilter matching.
342 278
343 config NET_RX_BUSY_POLL 279 config NET_RX_BUSY_POLL
344 bool 280 bool
345 default y if !PREEMPT_RT || (PREEMPT_R !! 281 default y
346 282
347 config BQL 283 config BQL
348 bool 284 bool
349 prompt "Enable Byte Queue Limits" <<
350 depends on SYSFS 285 depends on SYSFS
351 select DQL 286 select DQL
352 default y 287 default y
353 288
>> 289 config BPF_JIT
>> 290 bool "enable BPF Just In Time compiler"
>> 291 depends on HAVE_CBPF_JIT || HAVE_EBPF_JIT
>> 292 depends on MODULES
>> 293 ---help---
>> 294 Berkeley Packet Filter filtering capabilities are normally handled
>> 295 by an interpreter. This option allows kernel to generate a native
>> 296 code when filter is loaded in memory. This should speedup
>> 297 packet sniffing (libpcap/tcpdump).
>> 298
>> 299 Note, admin should enable this feature changing:
>> 300 /proc/sys/net/core/bpf_jit_enable
>> 301 /proc/sys/net/core/bpf_jit_harden (optional)
>> 302 /proc/sys/net/core/bpf_jit_kallsyms (optional)
>> 303
354 config BPF_STREAM_PARSER 304 config BPF_STREAM_PARSER
355 bool "enable BPF STREAM_PARSER" 305 bool "enable BPF STREAM_PARSER"
356 depends on INET 306 depends on INET
357 depends on BPF_SYSCALL 307 depends on BPF_SYSCALL
358 depends on CGROUP_BPF 308 depends on CGROUP_BPF
359 select STREAM_PARSER 309 select STREAM_PARSER
360 select NET_SOCK_MSG 310 select NET_SOCK_MSG
361 help !! 311 ---help---
362 Enabling this allows a TCP stream pa !! 312 Enabling this allows a stream parser to be used with
363 BPF_MAP_TYPE_SOCKMAP. !! 313 BPF_MAP_TYPE_SOCKMAP.
>> 314
>> 315 BPF_MAP_TYPE_SOCKMAP provides a map type to use with network sockets.
>> 316 It can be used to enforce socket policy, implement socket redirects,
>> 317 etc.
364 318
365 config NET_FLOW_LIMIT 319 config NET_FLOW_LIMIT
366 bool "Net flow limit" !! 320 bool
367 depends on RPS 321 depends on RPS
368 default y 322 default y
369 help !! 323 ---help---
370 The network stack has to drop packet 324 The network stack has to drop packets when a receive processing CPU's
371 backlog reaches netdev_max_backlog. 325 backlog reaches netdev_max_backlog. If a few out of many active flows
372 generate the vast majority of load, 326 generate the vast majority of load, drop their traffic earlier to
373 maintain capacity for the other flow 327 maintain capacity for the other flows. This feature provides servers
374 with many clients some protection ag 328 with many clients some protection against DoS by a single (spoofed)
375 flow that greatly exceeds average wo 329 flow that greatly exceeds average workload.
376 330
377 menu "Network testing" 331 menu "Network testing"
378 332
379 config NET_PKTGEN 333 config NET_PKTGEN
380 tristate "Packet Generator (USE WITH C 334 tristate "Packet Generator (USE WITH CAUTION)"
381 depends on INET && PROC_FS 335 depends on INET && PROC_FS
382 help !! 336 ---help---
383 This module will inject preconfigure 337 This module will inject preconfigured packets, at a configurable
384 rate, out of a given interface. It 338 rate, out of a given interface. It is used for network interface
385 stress testing and performance analy 339 stress testing and performance analysis. If you don't understand
386 what was just said, you don't need i 340 what was just said, you don't need it: say N.
387 341
388 Documentation on how to use the pack 342 Documentation on how to use the packet generator can be found
389 at <file:Documentation/networking/pk !! 343 at <file:Documentation/networking/pktgen.txt>.
390 344
391 To compile this code as a module, ch 345 To compile this code as a module, choose M here: the
392 module will be called pktgen. 346 module will be called pktgen.
393 347
394 config NET_DROP_MONITOR 348 config NET_DROP_MONITOR
395 tristate "Network packet drop alerting 349 tristate "Network packet drop alerting service"
396 depends on INET && TRACEPOINTS 350 depends on INET && TRACEPOINTS
397 help !! 351 ---help---
398 This feature provides an alerting se !! 352 This feature provides an alerting service to userspace in the
399 event that packets are discarded in !! 353 event that packets are discarded in the network stack. Alerts
400 are broadcast via netlink socket to !! 354 are broadcast via netlink socket to any listening user space
401 process. If you don't need network !! 355 process. If you don't need network drop alerts, or if you are ok
402 just checking the various proc files !! 356 just checking the various proc files and other utilities for
403 drop statistics, say N here. !! 357 drop statistics, say N here.
404 358
405 endmenu 359 endmenu
406 360
407 endmenu 361 endmenu
408 362
409 source "net/ax25/Kconfig" 363 source "net/ax25/Kconfig"
410 source "net/can/Kconfig" 364 source "net/can/Kconfig"
411 source "net/bluetooth/Kconfig" 365 source "net/bluetooth/Kconfig"
412 source "net/rxrpc/Kconfig" 366 source "net/rxrpc/Kconfig"
413 source "net/kcm/Kconfig" 367 source "net/kcm/Kconfig"
414 source "net/strparser/Kconfig" 368 source "net/strparser/Kconfig"
415 source "net/mctp/Kconfig" <<
416 369
417 config FIB_RULES 370 config FIB_RULES
418 bool 371 bool
419 372
420 menuconfig WIRELESS 373 menuconfig WIRELESS
421 bool "Wireless" 374 bool "Wireless"
422 depends on !S390 375 depends on !S390
423 default y 376 default y
424 377
425 if WIRELESS 378 if WIRELESS
426 379
427 source "net/wireless/Kconfig" 380 source "net/wireless/Kconfig"
428 source "net/mac80211/Kconfig" 381 source "net/mac80211/Kconfig"
429 382
430 endif # WIRELESS 383 endif # WIRELESS
431 384
>> 385 source "net/wimax/Kconfig"
>> 386
432 source "net/rfkill/Kconfig" 387 source "net/rfkill/Kconfig"
433 source "net/9p/Kconfig" 388 source "net/9p/Kconfig"
434 source "net/caif/Kconfig" 389 source "net/caif/Kconfig"
435 source "net/ceph/Kconfig" 390 source "net/ceph/Kconfig"
436 source "net/nfc/Kconfig" 391 source "net/nfc/Kconfig"
437 source "net/psample/Kconfig" 392 source "net/psample/Kconfig"
438 source "net/ife/Kconfig" 393 source "net/ife/Kconfig"
439 394
440 config LWTUNNEL 395 config LWTUNNEL
441 bool "Network light weight tunnels" 396 bool "Network light weight tunnels"
442 help !! 397 ---help---
443 This feature provides an infrastruct 398 This feature provides an infrastructure to support light weight
444 tunnels like mpls. There is no netde 399 tunnels like mpls. There is no netdevice associated with a light
445 weight tunnel endpoint. Tunnel encap 400 weight tunnel endpoint. Tunnel encapsulation parameters are stored
446 with light weight tunnel state assoc 401 with light weight tunnel state associated with fib routes.
447 402
448 config LWTUNNEL_BPF 403 config LWTUNNEL_BPF
449 bool "Execute BPF program as route nex 404 bool "Execute BPF program as route nexthop action"
450 depends on LWTUNNEL && INET 405 depends on LWTUNNEL && INET
451 default y if LWTUNNEL=y 406 default y if LWTUNNEL=y
452 help !! 407 ---help---
453 Allows to run BPF programs as a next 408 Allows to run BPF programs as a nexthop action following a route
454 lookup for incoming and outgoing pac 409 lookup for incoming and outgoing packets.
455 410
456 config DST_CACHE 411 config DST_CACHE
457 bool 412 bool
458 default n 413 default n
459 414
460 config GRO_CELLS 415 config GRO_CELLS
461 bool 416 bool
462 default n 417 default n
463 418
464 config SOCK_VALIDATE_XMIT 419 config SOCK_VALIDATE_XMIT
465 bool 420 bool
466 421
467 config NET_IEEE8021Q_HELPERS <<
468 bool <<
469 <<
470 config NET_SELFTESTS <<
471 def_tristate PHYLIB <<
472 depends on PHYLIB && INET <<
473 <<
474 config NET_SOCK_MSG 422 config NET_SOCK_MSG
475 bool 423 bool
476 default n 424 default n
477 help 425 help
478 The NET_SOCK_MSG provides a framewor 426 The NET_SOCK_MSG provides a framework for plain sockets (e.g. TCP) or
479 ULPs (upper layer modules, e.g. TLS) 427 ULPs (upper layer modules, e.g. TLS) to process L7 application data
480 with the help of BPF programs. 428 with the help of BPF programs.
481 429
482 config NET_DEVLINK 430 config NET_DEVLINK
483 bool 431 bool
484 default n 432 default n
485 433
486 config PAGE_POOL 434 config PAGE_POOL
487 bool !! 435 bool
488 <<
489 config PAGE_POOL_STATS <<
490 default n <<
491 bool "Page pool stats" <<
492 depends on PAGE_POOL <<
493 help <<
494 Enable page pool statistics to track <<
495 in page pools. This option incurs ad <<
496 and recycle paths and additional mem <<
497 These statistics are only available <<
498 the driver using the page pool suppo <<
499 <<
500 If unsure, say N. <<
501 436
502 config FAILOVER 437 config FAILOVER
503 tristate "Generic failover module" 438 tristate "Generic failover module"
504 help 439 help
505 The failover module provides a gener 440 The failover module provides a generic interface for paravirtual
506 drivers to register a netdev and a s 441 drivers to register a netdev and a set of ops with a failover
507 instance. The ops are used as event 442 instance. The ops are used as event handlers that get called to
508 handle netdev register/unregister/li 443 handle netdev register/unregister/link change/name change events
509 on slave pci ethernet devices with t 444 on slave pci ethernet devices with the same mac address as the
510 failover netdev. This enables paravi 445 failover netdev. This enables paravirtual drivers to use a
511 VF as an accelerated low latency dat 446 VF as an accelerated low latency datapath. It also allows live
512 migration of VMs with direct attache 447 migration of VMs with direct attached VFs by failing over to the
513 paravirtual datapath when the VF is 448 paravirtual datapath when the VF is unplugged.
514 449
515 config ETHTOOL_NETLINK !! 450 endif # if NET
516 bool "Netlink interface for ethtool" <<
517 select DIMLIB <<
518 default y <<
519 help <<
520 An alternative userspace interface f <<
521 netlink. It provides better extensib <<
522 e.g. notification messages. <<
523 <<
524 config NETDEV_ADDR_LIST_TEST <<
525 tristate "Unit tests for device addres <<
526 default KUNIT_ALL_TESTS <<
527 depends on KUNIT <<
528 <<
529 config NET_TEST <<
530 tristate "KUnit tests for networking" <<
531 depends on KUNIT <<
532 default KUNIT_ALL_TESTS <<
533 help <<
534 KUnit tests covering core networking <<
535 451
536 If unsure, say N. !! 452 # Used by archs to tell that they support BPF JIT compiler plus which flavour.
>> 453 # Only one of the two can be selected for a specific arch since eBPF JIT supersedes
>> 454 # the cBPF JIT.
537 455
538 endif # if NET !! 456 # Classic BPF JIT (cBPF)
>> 457 config HAVE_CBPF_JIT
>> 458 bool
>> 459
>> 460 # Extended BPF JIT (eBPF)
>> 461 config HAVE_EBPF_JIT
>> 462 bool
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