crypto: Fix dead links
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / Kconfig
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1#
2# Network configuration
3#
4
031cf19e 5menuconfig NET
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6 bool "Networking support"
7 ---help---
8 Unless you really know what you are doing, you should say Y here.
9 The reason is that some programs need kernel networking support even
10 when running on a stand-alone machine that isn't connected to any
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11 other computer.
12
13 If you are upgrading from an older kernel, you
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14 should consider updating your networking tools too because changes
15 in the kernel and the tools often go hand in hand. The tools are
16 contained in the package net-tools, the location and version number
17 of which are given in <file:Documentation/Changes>.
18
19 For a general introduction to Linux networking, it is highly
20 recommended to read the NET-HOWTO, available from
21 <http://www.tldp.org/docs.html#howto>.
22
6a2e9b73 23if NET
1da177e4 24
6a2e9b73 25menu "Networking options"
1da177e4 26
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27config COMPAT_NET_DEV_OPS
28 def_bool y
29
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30source "net/packet/Kconfig"
31source "net/unix/Kconfig"
32source "net/xfrm/Kconfig"
2356f4cb 33source "net/iucv/Kconfig"
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34
35config INET
36 bool "TCP/IP networking"
37 ---help---
38 These are the protocols used on the Internet and on most local
39 Ethernets. It is highly recommended to say Y here (this will enlarge
cf80efc2 40 your kernel by about 400 KB), since some programs (e.g. the X window
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41 system) use TCP/IP even if your machine is not connected to any
42 other computer. You will get the so-called loopback device which
43 allows you to ping yourself (great fun, that!).
44
45 For an excellent introduction to Linux networking, please read the
46 Linux Networking HOWTO, available from
47 <http://www.tldp.org/docs.html#howto>.
48
49 If you say Y here and also to "/proc file system support" and
50 "Sysctl support" below, you can change various aspects of the
51 behavior of the TCP/IP code by writing to the (virtual) files in
52 /proc/sys/net/ipv4/*; the options are explained in the file
53 <file:Documentation/networking/ip-sysctl.txt>.
54
55 Short answer: say Y.
56
6a2e9b73 57if INET
1da177e4 58source "net/ipv4/Kconfig"
1da177e4 59source "net/ipv6/Kconfig"
38c94377 60source "net/netlabel/Kconfig"
1da177e4 61
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62endif # if INET
63
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64config NETWORK_SECMARK
65 bool "Security Marking"
66 help
67 This enables security marking of network packets, similar
68 to nfmark, but designated for security purposes.
69 If you are unsure how to answer this question, answer N.
70
1da177e4 71menuconfig NETFILTER
ef91fd52 72 bool "Network packet filtering framework (Netfilter)"
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73 ---help---
74 Netfilter is a framework for filtering and mangling network packets
75 that pass through your Linux box.
76
77 The most common use of packet filtering is to run your Linux box as
78 a firewall protecting a local network from the Internet. The type of
79 firewall provided by this kernel support is called a "packet
80 filter", which means that it can reject individual network packets
81 based on type, source, destination etc. The other kind of firewall,
82 a "proxy-based" one, is more secure but more intrusive and more
83 bothersome to set up; it inspects the network traffic much more
84 closely, modifies it and has knowledge about the higher level
85 protocols, which a packet filter lacks. Moreover, proxy-based
86 firewalls often require changes to the programs running on the local
87 clients. Proxy-based firewalls don't need support by the kernel, but
88 they are often combined with a packet filter, which only works if
89 you say Y here.
90
91 You should also say Y here if you intend to use your Linux box as
92 the gateway to the Internet for a local network of machines without
93 globally valid IP addresses. This is called "masquerading": if one
94 of the computers on your local network wants to send something to
95 the outside, your box can "masquerade" as that computer, i.e. it
96 forwards the traffic to the intended outside destination, but
97 modifies the packets to make it look like they came from the
98 firewall box itself. It works both ways: if the outside host
99 replies, the Linux box will silently forward the traffic to the
100 correct local computer. This way, the computers on your local net
101 are completely invisible to the outside world, even though they can
102 reach the outside and can receive replies. It is even possible to
103 run globally visible servers from within a masqueraded local network
104 using a mechanism called portforwarding. Masquerading is also often
105 called NAT (Network Address Translation).
106
107 Another use of Netfilter is in transparent proxying: if a machine on
108 the local network tries to connect to an outside host, your Linux
109 box can transparently forward the traffic to a local server,
110 typically a caching proxy server.
111
112 Yet another use of Netfilter is building a bridging firewall. Using
113 a bridge with Network packet filtering enabled makes iptables "see"
114 the bridged traffic. For filtering on the lower network and Ethernet
115 protocols over the bridge, use ebtables (under bridge netfilter
116 configuration).
117
118 Various modules exist for netfilter which replace the previous
119 masquerading (ipmasqadm), packet filtering (ipchains), transparent
120 proxying, and portforwarding mechanisms. Please see
121 <file:Documentation/Changes> under "iptables" for the location of
122 these packages.
123
124 Make sure to say N to "Fast switching" below if you intend to say Y
125 here, as Fast switching currently bypasses netfilter.
126
127 Chances are that you should say Y here if you compile a kernel which
128 will run as a router and N for regular hosts. If unsure, say N.
129
130if NETFILTER
131
132config NETFILTER_DEBUG
133 bool "Network packet filtering debugging"
134 depends on NETFILTER
135 help
136 You can say Y here if you want to get additional messages useful in
137 debugging the netfilter code.
138
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139config NETFILTER_ADVANCED
140 bool "Advanced netfilter configuration"
141 depends on NETFILTER
142 default y
143 help
144 If you say Y here you can select between all the netfilter modules.
145 If you say N the more ununsual ones will not be shown and the
146 basic ones needed by most people will default to 'M'.
147
148 If unsure, say Y.
149
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150config BRIDGE_NETFILTER
151 bool "Bridged IP/ARP packets filtering"
152 depends on BRIDGE && NETFILTER && INET
33b8e776 153 depends on NETFILTER_ADVANCED
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154 default y
155 ---help---
156 Enabling this option will let arptables resp. iptables see bridged
157 ARP resp. IP traffic. If you want a bridging firewall, you probably
158 want this option enabled.
159 Enabling or disabling this option doesn't enable or disable
160 ebtables.
161
162 If unsure, say N.
163
9eb0eec7 164source "net/netfilter/Kconfig"
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165source "net/ipv4/netfilter/Kconfig"
166source "net/ipv6/netfilter/Kconfig"
167source "net/decnet/netfilter/Kconfig"
168source "net/bridge/netfilter/Kconfig"
169
170endif
171
7c657876 172source "net/dccp/Kconfig"
1da177e4 173source "net/sctp/Kconfig"
1e63e681 174source "net/tipc/Kconfig"
6a2e9b73 175source "net/atm/Kconfig"
a19800d7 176source "net/802/Kconfig"
6a2e9b73 177source "net/bridge/Kconfig"
91da11f8 178source "net/dsa/Kconfig"
6a2e9b73 179source "net/8021q/Kconfig"
1da177e4 180source "net/decnet/Kconfig"
1da177e4 181source "net/llc/Kconfig"
1da177e4 182source "net/ipx/Kconfig"
1da177e4 183source "drivers/net/appletalk/Kconfig"
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184source "net/x25/Kconfig"
185source "net/lapb/Kconfig"
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186source "net/econet/Kconfig"
187source "net/wanrouter/Kconfig"
1da177e4 188source "net/sched/Kconfig"
2f90b865 189source "net/dcb/Kconfig"
1da177e4 190
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191menu "Network testing"
192
193config NET_PKTGEN
194 tristate "Packet Generator (USE WITH CAUTION)"
195 depends on PROC_FS
196 ---help---
197 This module will inject preconfigured packets, at a configurable
198 rate, out of a given interface. It is used for network interface
199 stress testing and performance analysis. If you don't understand
200 what was just said, you don't need it: say N.
201
202 Documentation on how to use the packet generator can be found
203 at <file:Documentation/networking/pktgen.txt>.
204
205 To compile this code as a module, choose M here: the
206 module will be called pktgen.
207
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208config NET_TCPPROBE
209 tristate "TCP connection probing"
210 depends on INET && EXPERIMENTAL && PROC_FS && KPROBES
211 ---help---
212 This module allows for capturing the changes to TCP connection
9dadaa19 213 state in response to incoming packets. It is used for debugging
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214 TCP congestion avoidance modules. If you don't understand
215 what was just said, you don't need it: say N.
216
82fe7c92 217 Documentation on how to use TCP connection probing can be found
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218 at http://linux-net.osdl.org/index.php/TcpProbe
219
220 To compile this code as a module, choose M here: the
221 module will be called tcp_probe.
222
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223endmenu
224
225endmenu
226
1da177e4 227source "net/ax25/Kconfig"
0d66548a 228source "net/can/Kconfig"
1da177e4 229source "net/irda/Kconfig"
1da177e4 230source "net/bluetooth/Kconfig"
17926a79 231source "net/rxrpc/Kconfig"
8ead536d 232source "net/phonet/Kconfig"
d86b5e0e 233
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234config FIB_RULES
235 bool
236
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237menuconfig WIRELESS
238 bool "Wireless"
f54bfc0e 239 depends on !S390
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240 default y
241
242if WIRELESS
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243
244source "net/wireless/Kconfig"
f0706e82 245source "net/mac80211/Kconfig"
2a5e1c0e 246
5442060c 247endif # WIRELESS
2a5e1c0e 248
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249source "net/wimax/Kconfig"
250
cf4328cd 251source "net/rfkill/Kconfig"
bd238fb4 252source "net/9p/Kconfig"
cf4328cd 253
6a2e9b73 254endif # if NET