From a4b4ae37588993c1e081416237b3706d5aac1a7e Mon Sep 17 00:00:00 2001 From: Pau Espin Pedrol Date: Wed, 21 Feb 2024 18:56:49 +0100 Subject: gsup: Add ePDG Tunnel Request/Error/Result messages These messages are used in the GSUP-based CEAI interface between strongswan IPsec and osmo-epdg, which acts basically as a forwarding protocol between IKEv2 on the UE side and GTPv2C S2b towards PGW + Diameter SWm towards AAA Server. Those fields are already present in libosmocore, GSUP reference implementation [1]. [1] https://gitea.osmocom.org/osmocom/libosmocore/src/branch/master/include/osmocom/gsm/gsup.h#L205 --- epan/dissectors/packet-gsm_gsup.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/epan/dissectors/packet-gsm_gsup.c b/epan/dissectors/packet-gsm_gsup.c index 7ed3119b6b..45ddf21e2d 100644 --- a/epan/dissectors/packet-gsm_gsup.c +++ b/epan/dissectors/packet-gsm_gsup.c @@ -183,6 +183,10 @@ enum osmo_gsup_message_type { OSMO_GSUP_MSGT_E_ABORT = 0x4b, OSMO_GSUP_MSGT_E_ROUTING_ERROR = 0x4e, + + OSMO_GSUP_MSGT_EPDG_TUNNEL_REQUEST = 0x50, + OSMO_GSUP_MSGT_EPDG_TUNNEL_ERROR = 0x51, + OSMO_GSUP_MSGT_EPDG_TUNNEL_RESULT = 0x52, }; #define OSMO_GSUP_IS_MSGT_REQUEST(msgt) (((msgt) & 0b00000011) == 0b00) @@ -422,6 +426,9 @@ static const value_string gsup_msg_types[] = { { OSMO_GSUP_MSGT_E_CLOSE, "E Close"}, { OSMO_GSUP_MSGT_E_ABORT, "E Abort"}, { OSMO_GSUP_MSGT_E_ROUTING_ERROR, "E Routing Error"}, + { OSMO_GSUP_MSGT_EPDG_TUNNEL_REQUEST, "ePDG Tunnel Request"}, + { OSMO_GSUP_MSGT_EPDG_TUNNEL_ERROR, "ePDG Tunnel Error"}, + { OSMO_GSUP_MSGT_EPDG_TUNNEL_RESULT, "ePDG Tunnel Result"}, { 0, NULL } }; -- cgit v1.2.3