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Configuration support for interface access codes

This commit is contained in:
Mark Qvist 2022-04-27 13:21:53 +02:00
parent 7c70f9d865
commit cf1ca01a3b
4 changed files with 81 additions and 11 deletions
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11
RNS/Identity.py
View File

@ -58,11 +58,12 @@ class Identity:
"""
# Non-configurable constants
FERNET_VERSION = 0x80
FERNET_OVERHEAD = 54 # In bytes
AES128_BLOCKSIZE = 16 # In bytes
HASHLENGTH = 256 # In bits
SIGLENGTH = KEYSIZE # In bits
FERNET_VERSION = 0x80
FERNET_OVERHEAD = 57 # In bytes
OPTIMISED_FERNET_OVERHEAD = 54 # In bytes
AES128_BLOCKSIZE = 16 # In bytes
HASHLENGTH = 256 # In bits
SIGLENGTH = KEYSIZE # In bits
TRUNCATED_HASHLENGTH = RNS.Reticulum.TRUNCATED_HASHLENGTH
"""

2
RNS/Link.py
View File

@ -67,7 +67,7 @@ class Link:
ECPUBSIZE = 32+32
KEYSIZE = 32
MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.FERNET_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
MDU = math.floor((RNS.Reticulum.MTU-RNS.Reticulum.IFAC_MIN_SIZE-RNS.Reticulum.HEADER_MINSIZE-RNS.Identity.OPTIMISED_FERNET_OVERHEAD)/RNS.Identity.AES128_BLOCKSIZE)*RNS.Identity.AES128_BLOCKSIZE - 1
ESTABLISHMENT_TIMEOUT_PER_HOP = RNS.Reticulum.DEFAULT_PER_HOP_TIMEOUT
"""

2
RNS/Packet.py
View File

@ -94,7 +94,7 @@ class Packet:
"""
PLAIN_MDU = MDU
"""
The maximum size of the payload data in a single unencrypted packet
The maximum size of the payload data in a single unencrypted packet
"""
TIMEOUT_PER_HOP = RNS.Reticulum.DEFAULT_PER_HOP_TIMEOUT

77
RNS/Reticulum.py
View File

@ -71,12 +71,12 @@ class Reticulum:
other programs to use on demand.
"""
# Future minimum will probably be locked in at 244 bytes to support
# networks with segments of different MTUs. Absolute minimum is 211.
# Future minimum will probably be locked in at 251 bytes to support
# networks with segments of different MTUs. Absolute minimum is 219.
MTU = 500
"""
The MTU that Reticulum adheres to, and will expect other peers to
adhere to. By default, the MTU is 500 bytes. In custom RNS network
adhere to. By default, the MTU is 507 bytes. In custom RNS network
implementations, it is possible to change this value, but doing so will
completely break compatibility with all other RNS networks. An identical
MTU is a prerequisite for peers to communicate in the same network.
@ -121,8 +121,9 @@ class Reticulum:
HEADER_MINSIZE = 2+1+(TRUNCATED_HASHLENGTH//8)*1
HEADER_MAXSIZE = 2+1+(TRUNCATED_HASHLENGTH//8)*2
IFAC_MIN_SIZE = 1
MDU = MTU - HEADER_MAXSIZE
MDU = MTU - HEADER_MAXSIZE - IFAC_MIN_SIZE
router = None
config = None
@ -323,6 +324,12 @@ class Reticulum:
interface_names = []
for name in self.config["interfaces"]:
if not name in interface_names:
# TODO: We really need to generalise this way of instantiating
# and configuring interfaces. Ideally, interfaces should just
# have a conrfig dict passed to their init method, and return
# a ready interface, onto which this routine can configure any
# generic or extra parameters.
c = self.config["interfaces"][name]
interface_mode = Interface.Interface.MODE_FULL
@ -343,6 +350,21 @@ class Reticulum:
elif c["mode"] == "pointtopoint" or c["mode"] == "ptp":
interface_mode = Interface.Interface.MODE_POINT_TO_POINT
ifac_size = None
if "ifac_size" in c:
if c.as_int("ifac_size") >= Reticulum.IFAC_MIN_SIZE:
ifac_size = c.as_int("ifac_size")
ifac_netname = None
if "ifac_netname" in c:
if c.as_int("ifac_netname") >= Reticulum.IFAC_MIN_SIZE:
ifac_netname = c.as_int("ifac_netname")
ifac_netkey = None
if "ifac_netkey" in c:
if c.as_int("ifac_netkey") >= Reticulum.IFAC_MIN_SIZE:
ifac_netkey = c.as_int("ifac_netkey")
configured_bitrate = None
if "bitrate" in c:
if c.as_int("bitrate") >= Reticulum.MINIMUM_BITRATE:
@ -354,6 +376,8 @@ class Reticulum:
announce_cap = c.as_float("announce_cap")/100.0
try:
interface = None
if (("interface_enabled" in c) and c.as_bool("interface_enabled") == True) or (("enabled" in c) and c.as_bool("enabled") == True):
if c["type"] == "AutoInterface":
if not RNS.vendor.platformutils.is_windows():
@ -387,6 +411,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 16
else:
RNS.log("AutoInterface is not currently supported on Windows, disabling interface.", RNS.LOG_ERROR);
@ -430,6 +458,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 16
if c["type"] == "TCPServerInterface":
@ -467,6 +499,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 16
if c["type"] == "TCPClientInterface":
@ -501,6 +537,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 16
if c["type"] == "I2PInterface":
@ -531,6 +571,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 16
if c["type"] == "SerialInterface":
@ -565,6 +609,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 8
if c["type"] == "KISSInterface":
preamble = int(c["preamble"]) if "preamble" in c else None
@ -612,6 +660,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 8
if c["type"] == "AX25KISSInterface":
preamble = int(c["preamble"]) if "preamble" in c else None
@ -660,6 +712,10 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 8
if c["type"] == "RNodeInterface":
frequency = int(c["frequency"]) if "frequency" in c else None
@ -702,6 +758,19 @@ class Reticulum:
interface.announce_cap = announce_cap
if configured_bitrate:
interface.bitrate = configured_bitrate
if ifac_size != None:
interface.ifac_size = ifac_size
else:
interface.ifac_size = 8
if interface != None:
interface.ifac_netname = ifac_netname
interface.ifac_netkey = ifac_netkey
# TODO: Remove
RNS.log("Interface ready: "+str(interface))
RNS.Transport.interfaces.append(interface)
else:
RNS.log("Skipping disabled interface \""+name+"\"", RNS.LOG_DEBUG)