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rtl8723cs-wowlan: implement --dest-mac flag

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This commit is contained in:
Colin 2023-10-13 06:13:19 +00:00
parent ae64493564
commit ad1ebc0ed3
1 changed files with 38 additions and 14 deletions
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52
pkgs/additional/rtl8723cs-wowlan/rtl8723cs-wowlan
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@ -77,21 +77,31 @@ class IpAddr(Encodable):
def octets(self) -> list[int]:
return self._octets
class MacAddr(Encodable):
def __init__(self, addr: str):
pieces = addr.lower().split(':')
self._octets = [int(p, 16) if p else 0 for p in pieces]
def octets(self) -> list[int]:
return self._octets
class EtherType:
# ethertype: <https://en.wikipedia.org/wiki/EtherType#Values>
IPv4 = [ 0x08, 0x00 ] # 0x0800
ARP = [ 0x08, 0x06 ] # 0x0806
class EthernetFrame(Encodable):
def __init__(self, ether_type: EtherType, payload: Encodable):
def __init__(self, ether_type: EtherType, payload: Encodable, dest_mac: MacAddr|None = None):
self.ether_type = ether_type
self.payload = payload
self.dest_mac = dest_mac
def octets(self) -> list[int|None]:
dest_mac_ = Encodable.get_octets(self.dest_mac, 6)
return [
# ethernet frame: <https://en.wikipedia.org/wiki/Ethernet_frame#Structure>
## dest MAC address (this should be the device's MAC, but i think that's implied?)
None, None, None, None, None, None,
dest_mac_[0], dest_mac_[1], dest_mac_[2], dest_mac_[3], dest_mac_[4], dest_mac_[5],
## src MAC address
None, None, None, None, None, None,
## ethertype: <https://en.wikipedia.org/wiki/EtherType#Values>
@ -99,10 +109,13 @@ class EthernetFrame(Encodable):
] + self.payload.octets()
class ArpFrame(Encodable):
def __init__(self, dest_ip: IpAddr|None):
def __init__(self, dest_ip: IpAddr|None, dest_mac: MacAddr|None):
self.dest_ip = dest_ip
self.dest_mac = dest_mac
def octets(self) -> list[int|None]:
dest_ip_ = Encodable.get_octets(self.dest_ip, 4)
dest_mac_ = Encodable.get_octets(self.dest_mac, 6)
return [
# ARP frame: <https://en.wikipedia.org/wiki/Address_Resolution_Protocol#Packet_structure>
## hardware type
@ -120,15 +133,22 @@ class ArpFrame(Encodable):
## sender protocol address
None, None, None, None,
## target hardware address
## this is left as "Don't Care" because the packets we want to match
## caller is fine to leave this as "Don't Care" (None) because the packets we want to match
## are those mapping protocol addr -> hw addr.
## sometimes clients do include this field if they've seen the address before though
None, None, None, None, None, None,
## sometimes clients do include this field if they've seen the address before.
## otherwise clients use the broadcast mac, i.e. [ff::ff]
dest_mac_[0], dest_mac_[1], dest_mac_[2], dest_mac_[3], dest_mac_[4], dest_mac_[5],
## target protocol address
] + Encodable.get_octets(self.dest_ip, 4)
dest_ip_[0], dest_ip_[1], dest_ip_[2], dest_ip_[3],
]
class TcpFrame(Encodable):
def __init__(self, source_port: Port|None=None, dest_port: Port|None=None, dest_ip: IpAddr|None = None):
def __init__(
self,
source_port: Port|None=None,
dest_port: Port|None=None,
dest_ip: IpAddr|None = None,
):
self.source_port = source_port
self.dest_port = dest_port
self.dest_ip = dest_ip
@ -171,15 +191,17 @@ def ips_from_str(ip: str|None = None) -> list[IpAddr|None]:
ips = IpAddr.parse_any(ip) if ip is not None else []
return ips or [None]
def build_arp(dest_ip: str|None = None) -> list[EthernetFrame]:
def build_arp(dest_ip: str|None = None, dest_mac: str|None = None) -> list[EthernetFrame]:
dest_ips = ips_from_str(dest_ip)
return [EthernetFrame(EtherType.ARP, ArpFrame(ip)) for ip in dest_ips]
dest_mac = MacAddr(dest_mac) if dest_mac is not None else None
return [EthernetFrame(EtherType.ARP, ArpFrame(dest_ip=ip, dest_mac=dest_mac)) for ip in dest_ips]
def build_tcp(source_port: int|None = None, dest_port: int|None = None, dest_ip: str|None = None) -> list[EthernetFrame]:
def build_tcp(source_port: int|None = None, dest_port: int|None = None, dest_ip: str|None = None, dest_mac: str|None = None) -> list[EthernetFrame]:
source_port = Port(source_port) if source_port is not None else None
dest_port = Port(dest_port) if dest_port is not None else None
dest_ips = ips_from_str(dest_ip)
return [EthernetFrame(EtherType.IPv4, TcpFrame(source_port=source_port, dest_port=dest_port, dest_ip=ip)) for ip in dest_ips]
dest_mac = MacAddr(dest_mac) if dest_mac is not None else None
return [EthernetFrame(EtherType.IPv4, TcpFrame(source_port=source_port, dest_port=dest_port, dest_ip=ip), dest_mac=dest_mac) for ip in dest_ips]
def exec_with(executor, args: list[str]):
logger.debug("invoking: {}".format(' '.join(args)))
@ -205,12 +227,14 @@ def main():
arp_parser = subparsers.add_parser('arp', help="wake on ARP request")
arp_parser.set_defaults(type_='arp')
arp_parser.add_argument('--dest-ip', help="a.b.c.d or the special 'SELF' for automatic")
arp_parser.add_argument('--dest-mac', help="ab:cd:...")
tcp_parser = subparsers.add_parser('tcp', help="wake on TCP packet")
tcp_parser.set_defaults(type_='tcp')
tcp_parser.add_argument('--source-port', type=int)
tcp_parser.add_argument('--dest-port', type=int)
tcp_parser.add_argument('--dest-ip', help="a.b.c.d or the special 'SELF' for automatic")
tcp_parser.add_argument('--dest-mac', help="ab:cd:...")
args = parser.parse_args()
@ -225,9 +249,9 @@ def main():
frames = []
if args.type_ == 'arp':
frames = build_arp(dest_ip=args.dest_ip)
frames = build_arp(dest_ip=args.dest_ip, dest_mac=args.dest_mac)
if args.type_ == 'tcp':
frames = build_tcp(source_port=args.source_port, dest_port=args.dest_port, dest_ip=args.dest_ip)
frames = build_tcp(source_port=args.source_port, dest_port=args.dest_port, dest_ip=args.dest_ip, dest_mac=args.dest_mac)
for frame in frames:
pattern = str(frame)