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lib: set uplink flag for NAS

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This commit is contained in:
Will Greenberg
2025-01-29 17:06:56 -08:00
committed by Cooper Quintin
parent 3619df32ab
commit 5a084f1abb
3 changed files with 13 additions and 6 deletions
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6
lib/src/gsmtap_parser.rs
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@@ -99,7 +99,6 @@ fn log_to_gsmtap(value: LogBody) -> Result<Option<GsmtapMessage>, GsmtapParserEr
_ => return Err(GsmtapParserError::InvalidLteRrcOtaExtHeaderVersion(ext_header_version)),
};
let mut header = GsmtapHeader::new(gsmtap_type);
// Wireshark GSMTAP only accepts 14 bits of ARFCN
header.arfcn = packet.get_earfcn().try_into().unwrap_or(0);
header.frame_number = packet.get_sfn();
header.subslot = packet.get_subfn();
@@ -108,9 +107,10 @@ fn log_to_gsmtap(value: LogBody) -> Result<Option<GsmtapMessage>, GsmtapParserEr
payload: packet.take_payload(),
}))
},
LogBody::Nas4GMessage { msg, .. } => {
LogBody::Nas4GMessage { msg, direction, .. } => {
// currently we only handle "plain" (i.e. non-secure) NAS messages
let header = GsmtapHeader::new(GsmtapType::LteNas(LteNasSubtype::Plain));
let mut header = GsmtapHeader::new(GsmtapType::LteNas(LteNasSubtype::Plain));
header.uplink = matches!(direction, Nas4GMessageDirection::Uplink);
Ok(Some(GsmtapMessage {
header,
payload: msg,