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Fix interface IP for point-to-point links #4887

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Merged
gpotter2 merged 1 commit into from
Dec 22, 2025
Merged

Fix interface IP for point-to-point links #4887

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13 changes: 9 additions & 4 deletions scapy/arch/linux/rtnetlink.py
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Original file line number Diff line number Diff line change
Expand Up @@ -774,18 +774,23 @@ def _get_ips(af_family=socket.AF_UNSPEC):
ifindex = msg.ifa_index
address = None
family = msg.ifa_family
local = None
for attr in msg.data:
if attr.rta_type == 0x01: # IFA_ADDRESS
address = attr.rta_data
break
if address is not None:
elif attr.rta_type == 0x02: # IFA_LOCAL
local = attr.rta_data
# include/uapi/linux/if_addr.h: for point-to-point links, IFA_LOCAL is the local
# interface address and IFA_ADDRESS is the peer address
local_address = local if local is not None else address
if local_address is not None:
data = {
"af_family": family,
"index": ifindex,
"address": address,
"address": local_address,
}
if family == 10: # ipv6
data["scope"] = scapy.utils6.in6_getscope(address)
data["scope"] = scapy.utils6.in6_getscope(local_address)
ips.setdefault(ifindex, list()).append(data)
return ips

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