Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) # PPP network device configuration
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) #
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) config PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 	tristate "PPP (point-to-point protocol) support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 	select SLHC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	  PPP (Point to Point Protocol) is a newer and better SLIP.  It serves
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 	  the same purpose: sending Internet traffic over telephone (and other
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 	  serial) lines.  Ask your access provider if they support it, because
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	  otherwise you can't use it; most Internet access providers these
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	  days support PPP rather than SLIP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	  To use PPP, you need an additional program called pppd as described
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	  in the PPP-HOWTO, available at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	  <http://www.tldp.org/docs.html#howto>.  Make sure that you have
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	  the version of pppd recommended in <file:Documentation/Changes>.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	  The PPP option enlarges your kernel by about 16 KB.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	  There are actually two versions of PPP: the traditional PPP for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	  asynchronous lines, such as regular analog phone lines, and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	  synchronous PPP which can be used over digital ISDN lines for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	  example.  If you want to use PPP over phone lines or other
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	  asynchronous serial lines, you need to say Y (or M) here and also to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	  the next option, "PPP support for async serial ports".  For PPP over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	  synchronous lines, you should say Y (or M) here and to "Support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	  synchronous PPP", below.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	  If you said Y to "Version information on all symbols" above, then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	  you cannot compile the PPP driver into the kernel; you can then only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	  compile it as a module. To compile this driver as a module, choose M
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	  here. The module will be called ppp_generic.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) if PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) config PPP_BSDCOMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	tristate "PPP BSD-Compress compression"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	  Support for the BSD-Compress compression method for PPP, which uses
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	  the LZW compression method to compress each PPP packet before it is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	  sent over the wire. The machine at the other end of the PPP link
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	  (usually your ISP) has to support the BSD-Compress compression
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	  method as well for this to be useful. Even if they don't support it,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	  it is safe to say Y here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	  The PPP Deflate compression method ("PPP Deflate compression",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	  above) is preferable to BSD-Compress, because it compresses better
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	  and is patent-free.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	  Note that the BSD compression code will always be compiled as a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	  module; it is called bsd_comp and will show up in the directory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	  modules once you have said "make modules". If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) config PPP_DEFLATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	tristate "PPP Deflate compression"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	select ZLIB_INFLATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	select ZLIB_DEFLATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	  Support for the Deflate compression method for PPP, which uses the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	  Deflate algorithm (the same algorithm that gzip uses) to compress
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	  each PPP packet before it is sent over the wire.  The machine at the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	  other end of the PPP link (usually your ISP) has to support the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	  Deflate compression method as well for this to be useful.  Even if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	  they don't support it, it is safe to say Y here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	  To compile this driver as a module, choose M here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) config PPP_FILTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	bool "PPP filtering"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	  Say Y here if you want to be able to filter the packets passing over
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	  PPP interfaces.  This allows you to control which packets count as
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	  activity (i.e. which packets will reset the idle timer or bring up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	  a demand-dialed link) and which packets are to be dropped entirely.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	  You need to say Y here if you wish to use the pass-filter and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	  active-filter options to pppd.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) config PPP_MPPE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	tristate "PPP MPPE compression (encryption)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	select CRYPTO
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	select CRYPTO_SHA1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	select CRYPTO_LIB_ARC4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	  Support for the MPPE Encryption protocol, as employed by the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	  Microsoft Point-to-Point Tunneling Protocol.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	  See http://pptpclient.sourceforge.net/ for information on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	  configuring PPTP clients and servers to utilize this method.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) config PPP_MULTILINK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	bool "PPP multilink support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	  PPP multilink is a protocol (defined in RFC 1990) which allows you
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	  to combine several (logical or physical) lines into one logical PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	  connection, so that you can utilize your full bandwidth.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	  This has to be supported at the other end as well and you need a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	  version of the pppd daemon which understands the multilink protocol.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	  If unsure, say N.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) config PPPOATM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	tristate "PPP over ATM"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	depends on ATM && PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	  Support PPP (Point to Point Protocol) encapsulated in ATM frames.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	  This implementation does not yet comply with section 8 of RFC2364,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	  which can lead to bad results if the ATM peer loses state and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	  changes its encapsulation unilaterally.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) config PPPOE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	tristate "PPP over Ethernet"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	  Support for PPP over Ethernet.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	  This driver requires the latest version of pppd from the CVS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	  repository at cvs.samba.org.  Alternatively, see the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	  RoaringPenguin package (<http://www.roaringpenguin.com/pppoe>)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	  which contains instruction on how to use this driver (under
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	  the heading "Kernel mode PPPoE").
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) config PPTP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	tristate "PPP over IPv4 (PPTP)"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	depends on PPP && NET_IPGRE_DEMUX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	  Support for PPP over IPv4.(Point-to-Point Tunneling Protocol)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	  This driver requires pppd plugin to work in client mode or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	  modified pptpd (poptop) to work in server mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	  See http://accel-pptp.sourceforge.net/ for information how to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	  utilize this module.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) config PPPOL2TP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	tristate "PPP over L2TP"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	depends on L2TP && PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	  Support for PPP-over-L2TP socket family. L2TP is a protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	  used by ISPs and enterprises to tunnel PPP traffic over UDP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	  tunnels. L2TP is replacing PPTP for VPN uses.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) if TTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) config PPP_ASYNC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	tristate "PPP support for async serial ports"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	select CRC_CCITT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	  Say Y (or M) here if you want to be able to use PPP over standard
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	  asynchronous serial ports, such as COM1 or COM2 on a PC.  If you use
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	  a modem (not a synchronous or ISDN modem) to contact your ISP, you
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	  need this option.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	  To compile this driver as a module, choose M here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	  If unsure, say Y.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) config PPP_SYNC_TTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	tristate "PPP support for sync tty ports"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	depends on PPP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	  Say Y (or M) here if you want to be able to use PPP over synchronous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	  (HDLC) tty devices, such as the SyncLink adapter. These devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	  are often used for high-speed leased lines like T1/E1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	  To compile this driver as a module, choose M here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) endif # TTY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) endif # PPP