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Refactor port number out of newGtpuCreateTunnel()

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The (remote) port number of the GTP module is configured during
initialization. It is therefore not required when calling
newGtpuCreateTunnel(), and could even lead to bugs (if another port
number is used than specified during GTP init).
This commit is contained in:
Robert Schmidt
2025-07-30 18:46:08 +02:00
parent 7c34825dae
commit 5d9db1688a
3 changed files with 9 additions and 15 deletions
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16
tests/nr-cuup/nr-cuup-load-test.c
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@@ -187,7 +187,7 @@ static bool recv_ng(protocol_ctxt_t *ctxt,
}
/* @brief Set up the NG-U (north-bound) GTP tunnel, and inform CU-UP via E1 */
static up_params_t setup_cuup_ue_ng(sctp_assoc_t assoc_id, const e1ap_nssai_t *nssai, uint32_t ue_id, instance_t gtp_inst, const char *ip, uint16_t port)
static up_params_t setup_cuup_ue_ng(sctp_assoc_t assoc_id, const e1ap_nssai_t *nssai, uint32_t ue_id, instance_t gtp_inst, const char *ip)
{
long pdu_id = 1;
long drb_id = pdu_id + 3;
@@ -196,7 +196,7 @@ static up_params_t setup_cuup_ue_ng(sctp_assoc_t assoc_id, const e1ap_nssai_t *n
/* create the local tunnel (i.e., as if we were UPF) */
transport_layer_addr_t null_addr = {.length = 32};
teid_t teid_lo = newGtpuCreateTunnel(gtp_inst, ue_id, pdu_id, pdu_id, -1, -1, null_addr, port, NULL, recv_ng);
teid_t teid_lo = newGtpuCreateTunnel(gtp_inst, ue_id, pdu_id, pdu_id, -1, -1, null_addr, NULL, recv_ng);
UP_TL_information_t tnl = {.teId = teid_lo};
memcpy(&tnl.tlAddress, &addr_lo, 4);
@@ -233,7 +233,7 @@ static up_params_t setup_cuup_ue_ng(sctp_assoc_t assoc_id, const e1ap_nssai_t *n
char ip_rm[32] = {0};
inet_ntop(AF_INET, &addr_rm, ip_rm, sizeof(ip_rm));
GtpuUpdateTunnelOutgoingAddressAndTeid(gtp_inst, ue_id, pdu_id, addr_rm, teid_rm);
LOG_I(GNB_APP, "CU-UP created NG-U, local %s/%x remote %s/%x (port %d)\n", ip_lo, teid_lo, ip_rm, teid_rm, port);
LOG_I(GNB_APP, "CU-UP created NG-U, local %s/%x remote %s/%x\n", ip_lo, teid_lo, ip_rm, teid_rm);
inet_ntop(AF_INET, &f1_up.tl_info.tlAddress, ip_rm, sizeof(ip_rm));
LOG_I(GNB_APP, "CU-UP created F1-U, remove %s/%x\n", ip_rm, f1_up.tl_info.teId);
@@ -286,7 +286,7 @@ static bool recv_f1(protocol_ctxt_t *ctxt,
}
/* @brief Set up the F1-U (south-bound) GTP tunnel, and inform CU-UP via E1 */
static void setup_cuup_ue_f1(sctp_assoc_t assoc_id, uint32_t ue_id, instance_t gtp_inst, const char *ip, uint16_t port, up_params_t rm)
static void setup_cuup_ue_f1(sctp_assoc_t assoc_id, uint32_t ue_id, instance_t gtp_inst, const char *ip, up_params_t rm)
{
int pdu_id = 1;
int drb_id = pdu_id + 3;
@@ -294,7 +294,7 @@ static void setup_cuup_ue_f1(sctp_assoc_t assoc_id, uint32_t ue_id, instance_t g
/* create tunnel (i.e., as if we were DU) */
transport_layer_addr_t addr = {.length = 32};
memcpy(addr.buffer, &rm.tl_info.tlAddress, 4);
teid_t teid_lo = newGtpuCreateTunnel(gtp_inst, ue_id, drb_id, drb_id, rm.tl_info.teId, -1, addr, port, recv_f1, NULL);
teid_t teid_lo = newGtpuCreateTunnel(gtp_inst, ue_id, drb_id, drb_id, rm.tl_info.teId, -1, addr, recv_f1, NULL);
up_params_t lo = {.tl_info.teId = teid_lo, .cell_group_id = rm.cell_group_id};
inet_pton(AF_INET, ip, &lo.tl_info.tlAddress);
@@ -319,7 +319,7 @@ static void setup_cuup_ue_f1(sctp_assoc_t assoc_id, uint32_t ue_id, instance_t g
inet_ntop(AF_INET, &lo.tl_info.tlAddress, ip_lo, sizeof(ip_lo));
char ip_rm[32] = {0};
inet_ntop(AF_INET, &rm.tl_info.tlAddress, ip_rm, sizeof(ip_rm));
LOG_I(GNB_APP, "CU-UP created F1-U, local %s/%x remote %s/%x (port %d)\n", ip_lo, lo.tl_info.teId, ip_rm, rm.tl_info.teId, port);
LOG_I(GNB_APP, "CU-UP created F1-U, local %s/%x remote %s/%x\n", ip_lo, lo.tl_info.teId, ip_rm, rm.tl_info.teId);
}
/* @brief release the UE over E1, and delete corresponding GTP tunnels */
@@ -609,8 +609,8 @@ int main(int argc, char *argv[])
* - setup_cuup_ue_f1(): E1 bearer context modification <=> send TEID for
* F1-U DL (as if we had talked to the DU in the middle) */
for (int ue = 0; ue < n_ue; ++ue) {
up_params_t f1_up = setup_cuup_ue_ng(assoc_id, &nssai, ue, ng_inst, ng_ip, ng_port);
setup_cuup_ue_f1(assoc_id, ue, f1_inst, f1_ip, f1_port, f1_up);
up_params_t f1_up = setup_cuup_ue_ng(assoc_id, &nssai, ue, ng_inst, ng_ip);
setup_cuup_ue_f1(assoc_id, ue, f1_inst, f1_ip, f1_up);
}
usleep(1000);