Module inbound 

Modules

dns 🔒

ping 🔒

tcp 🔒

trace 🔒

Structs

InboundConfig

Configuration for an inbound packet listening worker.

ReplyMeta

Metadata of a received reply, shared by all parse functions.

Enums

TxEncoding 🔒

Timestamp encodings for various measurement types

Functions

find_cmsg 🔒

Find the payload of the first control message matching (level, type) in an ancillary data buffer. Returns the buffer remainder starting at the payload. cmsghdr on 64-bit: [0..8] len, [8..12] level, [12..16] type, [16..] payload

get_packet 🔒

Get a packet from a socket along with its metadata (source address, TTL, and kernel receive timestamp).

handle_results 🔒

Forward results to the Worker handler

inbound

Listen for incoming packets Creates two threads, one that listens on the socket and another that forwards results to the orchestrator and shuts down the receiving socket when appropriate. Makes sure that the received packets are valid and belong to the current measurement.

parse_hop_limit 🔒

Retrieve IPv6 hop limit from the ancillary_data buffer bytes

parse_kernel_timestamp 🔒

Retrieve kernel-provided receive timestamp (SO_TIMESTAMP) from ancillary data. Returns microseconds since epoch.

rtt_ms 🔒

Compute the RTT in milliseconds based on the timestamp encoding.