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srsLTE
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Added check of IP version to the eNB GTP-u. Helpfull for debug.

This commit is contained in:
Pedro Alvarez 2019-04-26 11:34:55 +01:00 committed by Andre Puschmann
parent fe04a83269
commit 09144a2c5f
1 changed files with 8 additions and 0 deletions
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8
srsenb/src/stack/upper/gtpu.cc
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@ -22,6 +22,7 @@
#include "srsenb/hdr/stack/upper/gtpu.h"
#include <errno.h>
#include <fcntl.h>
#include <linux/ip.h>
#include <sys/socket.h>
#include <unistd.h>
@ -114,6 +115,13 @@ void gtpu::stop()
void gtpu::write_pdu(uint16_t rnti, uint32_t lcid, srslte::unique_byte_buffer_t pdu)
{
gtpu_log->info_hex(pdu->msg, pdu->N_bytes, "TX PDU, RNTI: 0x%x, LCID: %d, n_bytes=%d", rnti, lcid, pdu->N_bytes);
// Check valid IP version
struct iphdr* ip_pkt = (struct iphdr*)pdu->msg;
if (ip_pkt->version != 4 && ip_pkt->version != 6) {
gtpu_log->error("Invalid IP version to TUN\n");
}
gtpu_header_t header;
header.flags = GTPU_FLAGS_VERSION_V1 | GTPU_FLAGS_GTP_PROTOCOL;
header.message_type = GTPU_MSG_DATA_PDU;