mirror of
https://github.com/open5gs/open5gs.git
synced 2026-05-01 21:00:19 +00:00
c7c131f8d2
Replace ogs_assert() and ogs_fatal() with runtime checks when allocating UE contexts, transactions, and timers. Handle pool and timer exhaustion gracefully by logging errors, cleaning up partially created objects, and returning NULL instead of aborting the process, improving control-plane robustness under high load or resource limits. Issues: #4220, #4221
853 lines
26 KiB
C
853 lines
26 KiB
C
/*
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* Copyright (C) 2019 by Sukchan Lee <acetcom@gmail.com>
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*
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* This file is part of Open5GS.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "ogs-pfcp.h"
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#include "ogs-app.h"
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#define PFCP_MIN_XACT_ID 1
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#define PFCP_MAX_XACT_ID 0x800000
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typedef enum {
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PFCP_XACT_UNKNOWN_STAGE,
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PFCP_XACT_INITIAL_STAGE,
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PFCP_XACT_INTERMEDIATE_STAGE,
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PFCP_XACT_FINAL_STAGE,
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} ogs_pfcp_xact_stage_t;
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static int ogs_pfcp_xact_initialized = 0;
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static uint32_t g_xact_id = 0;
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static OGS_POOL(pool, ogs_pfcp_xact_t);
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static ogs_pfcp_xact_t *ogs_pfcp_xact_remote_create(
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ogs_pfcp_node_t *node, uint32_t sqn);
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static ogs_pfcp_xact_stage_t ogs_pfcp_xact_get_stage(
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uint8_t type, uint32_t xid);
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static int ogs_pfcp_xact_update_rx(ogs_pfcp_xact_t *xact, uint8_t type);
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static void response_timeout(void *data);
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static void holding_timeout(void *data);
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static void delayed_commit_timeout(void *data);
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int ogs_pfcp_xact_init(void)
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{
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ogs_assert(ogs_pfcp_xact_initialized == 0);
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ogs_pool_init(&pool, ogs_app()->pool.xact);
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g_xact_id = 0;
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ogs_pfcp_xact_initialized = 1;
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return OGS_OK;
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}
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void ogs_pfcp_xact_final(void)
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{
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ogs_assert(ogs_pfcp_xact_initialized == 1);
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ogs_pool_final(&pool);
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ogs_pfcp_xact_initialized = 0;
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}
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ogs_pfcp_xact_t *ogs_pfcp_xact_local_create(ogs_pfcp_node_t *node,
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void (*cb)(ogs_pfcp_xact_t *xact, void *data), void *data)
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{
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ogs_pfcp_xact_t *xact = NULL;
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ogs_assert(node);
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ogs_pool_id_calloc(&pool, &xact);
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if (!xact) {
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ogs_error("Maximum number of xact[%lld] reached",
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(long long)ogs_app()->pool.xact);
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return NULL;
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}
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xact->index = ogs_pool_index(&pool, xact);
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xact->org = OGS_PFCP_LOCAL_ORIGINATOR;
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xact->xid = OGS_NEXT_ID(g_xact_id, PFCP_MIN_XACT_ID, PFCP_MAX_XACT_ID);
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xact->node = node;
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xact->cb = cb;
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xact->data = data;
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xact->tm_response = ogs_timer_add(
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ogs_app()->timer_mgr, response_timeout,
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OGS_UINT_TO_POINTER(xact->id));
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if (!xact->tm_response) {
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ogs_error("Maximum number of xact->tm_response[%lld] reached",
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(long long)ogs_app()->pool.timer);
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ogs_pfcp_xact_delete(xact);
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return NULL;
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}
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xact->response_rcount =
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ogs_local_conf()->time.message.pfcp.n1_response_rcount;
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xact->tm_holding = ogs_timer_add(
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ogs_app()->timer_mgr, holding_timeout,
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OGS_UINT_TO_POINTER(xact->id));
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if (!xact->tm_holding) {
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ogs_error("Maximum number of xact->tm_holding[%lld] reached",
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(long long)ogs_app()->pool.timer);
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ogs_pfcp_xact_delete(xact);
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return NULL;
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}
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xact->holding_rcount =
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ogs_local_conf()->time.message.pfcp.n1_holding_rcount;
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xact->tm_delayed_commit = ogs_timer_add(
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ogs_app()->timer_mgr, delayed_commit_timeout,
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OGS_UINT_TO_POINTER(xact->id));
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if (!xact->tm_delayed_commit) {
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ogs_error("Maximum number of xact->tm_delayed_commit[%lld] reached",
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(long long)ogs_app()->pool.timer);
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ogs_pfcp_xact_delete(xact);
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return NULL;
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}
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ogs_list_add(xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
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&xact->node->local_list : &xact->node->remote_list, xact);
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ogs_list_init(&xact->pdr_to_create_list);
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ogs_debug("[%d] %s Create peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
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ogs_sockaddr_to_string_static(node->addr_list));
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return xact;
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}
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static ogs_pfcp_xact_t *ogs_pfcp_xact_remote_create(
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ogs_pfcp_node_t *node, uint32_t sqn)
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{
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ogs_pfcp_xact_t *xact = NULL;
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ogs_assert(node);
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ogs_pool_id_calloc(&pool, &xact);
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if (!xact) {
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ogs_error("Maximum number of xact[%lld] reached",
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(long long)ogs_app()->pool.xact);
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return NULL;
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}
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xact->index = ogs_pool_index(&pool, xact);
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xact->org = OGS_PFCP_REMOTE_ORIGINATOR;
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xact->xid = OGS_PFCP_SQN_TO_XID(sqn);
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xact->node = node;
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xact->tm_response = ogs_timer_add(
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ogs_app()->timer_mgr, response_timeout,
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OGS_UINT_TO_POINTER(xact->id));
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if (!xact->tm_response) {
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ogs_error("Maximum number of xact->tm_response[%lld] reached",
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(long long)ogs_app()->pool.timer);
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ogs_pfcp_xact_delete(xact);
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return NULL;
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}
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xact->response_rcount =
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ogs_local_conf()->time.message.pfcp.n1_response_rcount;
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xact->tm_holding = ogs_timer_add(
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ogs_app()->timer_mgr, holding_timeout,
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OGS_UINT_TO_POINTER(xact->id));
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if (!xact->tm_holding) {
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ogs_error("Maximum number of xact->tm_holding[%lld] reached",
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(long long)ogs_app()->pool.timer);
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ogs_pfcp_xact_delete(xact);
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return NULL;
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}
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xact->holding_rcount =
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ogs_local_conf()->time.message.pfcp.n1_holding_rcount;
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xact->tm_delayed_commit = ogs_timer_add(
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ogs_app()->timer_mgr, delayed_commit_timeout,
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OGS_UINT_TO_POINTER(xact->id));
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if (!xact->tm_delayed_commit) {
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ogs_error("Maximum number of xact->tm_delayed_commit[%lld] reached",
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(long long)ogs_app()->pool.timer);
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ogs_pfcp_xact_delete(xact);
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return NULL;
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}
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ogs_list_add(xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
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&xact->node->local_list : &xact->node->remote_list, xact);
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ogs_debug("[%d] %s Create peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
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ogs_sockaddr_to_string_static(node->addr_list));
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return xact;
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}
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void ogs_pfcp_xact_delete_all(ogs_pfcp_node_t *node)
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{
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ogs_pfcp_xact_t *xact = NULL, *next_xact = NULL;
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ogs_list_for_each_safe(&node->local_list, next_xact, xact)
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ogs_pfcp_xact_delete(xact);
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ogs_list_for_each_safe(&node->remote_list, next_xact, xact)
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ogs_pfcp_xact_delete(xact);
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}
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ogs_pfcp_xact_t *ogs_pfcp_xact_find_by_id(ogs_pool_id_t id)
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{
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return ogs_pool_find_by_id(&pool, id);
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}
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int ogs_pfcp_xact_update_tx(ogs_pfcp_xact_t *xact,
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ogs_pfcp_header_t *hdesc, ogs_pkbuf_t *pkbuf)
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{
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ogs_pfcp_xact_stage_t stage;
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ogs_pfcp_header_t *h = NULL;
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int pfcp_hlen = 0;
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ogs_assert(xact);
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ogs_assert(xact->node);
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ogs_assert(hdesc);
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ogs_assert(pkbuf);
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ogs_debug("[%d] %s UPD TX-%d peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
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hdesc->type,
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ogs_sockaddr_to_string_static(xact->node->addr_list));
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stage = ogs_pfcp_xact_get_stage(hdesc->type, xact->xid);
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if (xact->org == OGS_PFCP_LOCAL_ORIGINATOR) {
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switch (stage) {
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case PFCP_XACT_INITIAL_STAGE:
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if (xact->step != 0) {
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ogs_error("invalid step[%d] type[%d]", xact->step, hdesc->type);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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}
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break;
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case PFCP_XACT_INTERMEDIATE_STAGE:
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ogs_expect(0);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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case PFCP_XACT_FINAL_STAGE:
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if (xact->step != 2) {
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ogs_error("invalid step[%d] type[%d]", xact->step, hdesc->type);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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}
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break;
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default:
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ogs_assert_if_reached();
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break;
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}
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} else if (xact->org == OGS_PFCP_REMOTE_ORIGINATOR) {
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switch (stage) {
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case PFCP_XACT_INITIAL_STAGE:
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ogs_expect(0);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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case PFCP_XACT_INTERMEDIATE_STAGE:
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case PFCP_XACT_FINAL_STAGE:
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if (xact->step != 1) {
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ogs_error("invalid step[%d] type[%d]", xact->step, hdesc->type);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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}
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break;
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default:
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ogs_error("invalid stage[%d] type[%d]", stage, hdesc->type);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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}
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} else {
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ogs_error("invalid org[%d] type[%d]", xact->org, hdesc->type);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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}
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if (hdesc->type >= OGS_PFCP_SESSION_ESTABLISHMENT_REQUEST_TYPE) {
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pfcp_hlen = OGS_PFCP_HEADER_LEN;
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} else {
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pfcp_hlen = OGS_PFCP_HEADER_LEN - OGS_PFCP_SEID_LEN;
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}
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ogs_pkbuf_push(pkbuf, pfcp_hlen);
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h = (ogs_pfcp_header_t *)pkbuf->data;
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memset(h, 0, pfcp_hlen);
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h->version = OGS_PFCP_VERSION;
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h->type = hdesc->type;
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if (h->type >= OGS_PFCP_SESSION_ESTABLISHMENT_REQUEST_TYPE) {
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h->seid_presence = 1;
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h->seid = htobe64(hdesc->seid);
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h->sqn = OGS_PFCP_XID_TO_SQN(xact->xid);
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} else {
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h->seid_presence = 0;
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h->sqn_only = OGS_PFCP_XID_TO_SQN(xact->xid);
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}
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h->length = htobe16(pkbuf->len - 4);
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/* Save Message type and packet of this step */
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xact->seq[xact->step].type = h->type;
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xact->seq[xact->step].pkbuf = pkbuf;
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/* Step */
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xact->step++;
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return OGS_OK;
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}
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static int ogs_pfcp_xact_update_rx(ogs_pfcp_xact_t *xact, uint8_t type)
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{
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ogs_pfcp_xact_stage_t stage;
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ogs_debug("[%d] %s UPD RX-%d peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
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type,
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ogs_sockaddr_to_string_static(xact->node->addr_list));
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stage = ogs_pfcp_xact_get_stage(type, xact->xid);
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if (xact->org == OGS_PFCP_LOCAL_ORIGINATOR) {
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switch (stage) {
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case PFCP_XACT_INITIAL_STAGE:
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ogs_expect(0);
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return OGS_ERROR;
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case PFCP_XACT_INTERMEDIATE_STAGE:
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if (xact->seq[1].type == type) {
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ogs_pkbuf_t *pkbuf = NULL;
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if (xact->step != 2 && xact->step != 3) {
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ogs_error("invalid step[%d] type[%d]", xact->step, type);
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ogs_pkbuf_free(pkbuf);
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return OGS_ERROR;
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}
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pkbuf = xact->seq[2].pkbuf;
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if (pkbuf) {
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if (xact->tm_holding)
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ogs_timer_start(xact->tm_holding,
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ogs_local_conf()->time.message.
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pfcp.t1_holding_duration);
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ogs_warn("[%d] %s Request Duplicated. Retransmit!"
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" for step %d type %d peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
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"LOCAL " : "REMOTE",
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xact->step, type,
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ogs_sockaddr_to_string_static(
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xact->node->addr_list));
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ogs_expect(OGS_OK == ogs_pfcp_sendto(xact->node, pkbuf));
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} else {
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ogs_warn("[%d] %s Request Duplicated. Discard!"
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" for step %d type %d peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
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"LOCAL " : "REMOTE",
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xact->step, type,
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ogs_sockaddr_to_string_static(
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xact->node->addr_list));
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}
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return OGS_RETRY;
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}
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if (xact->step != 1) {
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ogs_error("invalid step[%d] type[%d]", xact->step, type);
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return OGS_ERROR;
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}
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if (xact->tm_holding)
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ogs_timer_start(xact->tm_holding,
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ogs_local_conf()->time.message.pfcp.
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t1_holding_duration);
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break;
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case PFCP_XACT_FINAL_STAGE:
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if (xact->step != 1) {
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ogs_error("invalid step[%d] type[%d]", xact->step, type);
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return OGS_ERROR;
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}
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break;
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default:
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ogs_error("invalid stage[%d]", stage);
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return OGS_ERROR;
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}
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} else if (xact->org == OGS_PFCP_REMOTE_ORIGINATOR) {
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switch (stage) {
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case PFCP_XACT_INITIAL_STAGE:
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if (xact->seq[0].type == type) {
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ogs_pkbuf_t *pkbuf = NULL;
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if (xact->step != 1 && xact->step != 2) {
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ogs_error("invalid step[%d] type[%d]", xact->step, type);
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return OGS_ERROR;
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}
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pkbuf = xact->seq[1].pkbuf;
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if (pkbuf) {
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if (xact->tm_holding)
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ogs_timer_start(xact->tm_holding,
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ogs_local_conf()->time.message.
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pfcp.t1_holding_duration);
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ogs_warn("[%d] %s Request Duplicated. Retransmit!"
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" for step %d type %d peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
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"LOCAL " : "REMOTE",
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xact->step, type,
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ogs_sockaddr_to_string_static(
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xact->node->addr_list));
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ogs_expect(OGS_OK == ogs_pfcp_sendto(xact->node, pkbuf));
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} else {
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ogs_warn("[%d] %s Request Duplicated. Discard!"
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" for step %d type %d peer %s",
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xact->xid,
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xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
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"LOCAL " : "REMOTE",
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xact->step, type,
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ogs_sockaddr_to_string_static(
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xact->node->addr_list));
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}
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return OGS_RETRY;
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}
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if (xact->step != 0) {
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ogs_error("invalid step[%d] type[%d]", xact->step, type);
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return OGS_ERROR;
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}
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if (xact->tm_holding)
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ogs_timer_start(xact->tm_holding,
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ogs_local_conf()->time.message.pfcp.
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t1_holding_duration);
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break;
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case PFCP_XACT_INTERMEDIATE_STAGE:
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ogs_expect(0);
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return OGS_ERROR;
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case PFCP_XACT_FINAL_STAGE:
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if (xact->step != 2) {
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ogs_error("invalid step[%d] type[%d]", xact->step, type);
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return OGS_ERROR;
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}
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/* continue */
|
|
break;
|
|
|
|
default:
|
|
ogs_error("invalid stage[%d]", stage);
|
|
return OGS_ERROR;
|
|
}
|
|
} else {
|
|
ogs_error("invalid org[%d]", xact->org);
|
|
return OGS_ERROR;
|
|
}
|
|
|
|
if (xact->tm_response)
|
|
ogs_timer_stop(xact->tm_response);
|
|
|
|
/* Save Message type of this step */
|
|
xact->seq[xact->step].type = type;
|
|
|
|
/* Step */
|
|
xact->step++;
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
int ogs_pfcp_xact_commit(ogs_pfcp_xact_t *xact)
|
|
{
|
|
uint8_t type;
|
|
ogs_pkbuf_t *pkbuf = NULL;
|
|
ogs_pfcp_xact_stage_t stage;
|
|
|
|
ogs_assert(xact);
|
|
ogs_assert(xact->node);
|
|
|
|
ogs_debug("[%d] %s Commit peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
|
|
type = xact->seq[xact->step-1].type;
|
|
stage = ogs_pfcp_xact_get_stage(type, xact->xid);
|
|
|
|
if (xact->org == OGS_PFCP_LOCAL_ORIGINATOR) {
|
|
switch (stage) {
|
|
case PFCP_XACT_INITIAL_STAGE:
|
|
if (xact->step != 1) {
|
|
ogs_error("invalid step[%d] type[%d]", xact->step, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
|
|
if (xact->tm_response)
|
|
ogs_timer_start(xact->tm_response,
|
|
ogs_local_conf()->time.message.pfcp.t1_response_duration);
|
|
|
|
break;
|
|
|
|
case PFCP_XACT_INTERMEDIATE_STAGE:
|
|
ogs_expect(0);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
|
|
case PFCP_XACT_FINAL_STAGE:
|
|
if (xact->step != 2 && xact->step != 3) {
|
|
ogs_error("invalid step[%d] type[%d]", xact->step, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
if (xact->step == 2) {
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_OK;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
ogs_error("invalid stage[%d] type[%d]", stage, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
} else if (xact->org == OGS_PFCP_REMOTE_ORIGINATOR) {
|
|
switch (stage) {
|
|
case PFCP_XACT_INITIAL_STAGE:
|
|
ogs_expect(0);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
|
|
case PFCP_XACT_INTERMEDIATE_STAGE:
|
|
if (xact->step != 2) {
|
|
ogs_error("invalid step[%d] type[%d]", xact->step, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
if (xact->tm_response)
|
|
ogs_timer_start(xact->tm_response,
|
|
ogs_local_conf()->time.message.pfcp.
|
|
t1_response_duration);
|
|
|
|
break;
|
|
|
|
case PFCP_XACT_FINAL_STAGE:
|
|
if (xact->step != 2 && xact->step != 3) {
|
|
ogs_error("invalid step[%d] type[%d]", xact->step, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
if (xact->step == 3) {
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_OK;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
ogs_error("invalid stage[%d] type[%d]", stage, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
} else {
|
|
ogs_error("invalid org[%d] type[%d]", xact->org, type);
|
|
ogs_pfcp_xact_delete(xact);
|
|
return OGS_ERROR;
|
|
}
|
|
|
|
pkbuf = xact->seq[xact->step-1].pkbuf;
|
|
ogs_assert(pkbuf);
|
|
|
|
ogs_expect(OGS_OK == ogs_pfcp_sendto(xact->node, pkbuf));
|
|
|
|
return OGS_OK;
|
|
}
|
|
|
|
void ogs_pfcp_xact_delayed_commit(ogs_pfcp_xact_t *xact, ogs_time_t duration)
|
|
{
|
|
ogs_assert(xact);
|
|
ogs_assert(duration);
|
|
ogs_assert(xact->tm_delayed_commit);
|
|
|
|
ogs_timer_start(xact->tm_delayed_commit, duration);
|
|
}
|
|
|
|
static void response_timeout(void *data)
|
|
{
|
|
ogs_pool_id_t xact_id = OGS_INVALID_POOL_ID;
|
|
ogs_pfcp_xact_t *xact = NULL;
|
|
|
|
ogs_assert(data);
|
|
xact_id = OGS_POINTER_TO_UINT(data);
|
|
ogs_assert(xact_id >= OGS_MIN_POOL_ID && xact_id <= OGS_MAX_POOL_ID);
|
|
|
|
xact = ogs_pfcp_xact_find_by_id(xact_id);
|
|
if (!xact) {
|
|
ogs_error("PFCP Transaction has already been removed [%d]", xact_id);
|
|
return;;
|
|
}
|
|
ogs_assert(xact->node);
|
|
|
|
ogs_debug("[%d] %s Response Timeout "
|
|
"for step %d type %d peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
xact->step, xact->seq[xact->step-1].type,
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
|
|
if (--xact->response_rcount > 0) {
|
|
ogs_pkbuf_t *pkbuf = NULL;
|
|
|
|
if (xact->tm_response)
|
|
ogs_timer_start(xact->tm_response,
|
|
ogs_local_conf()->time.message.pfcp.t1_response_duration);
|
|
|
|
pkbuf = xact->seq[xact->step-1].pkbuf;
|
|
ogs_assert(pkbuf);
|
|
|
|
ogs_expect(OGS_OK == ogs_pfcp_sendto(xact->node, pkbuf));
|
|
} else {
|
|
ogs_warn("[%d] %s No Reponse. Give up! "
|
|
"for step %d type %d peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
xact->step, xact->seq[xact->step-1].type,
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
|
|
if (xact->cb)
|
|
xact->cb(xact, xact->data);
|
|
|
|
ogs_pfcp_xact_delete(xact);
|
|
}
|
|
}
|
|
|
|
static void holding_timeout(void *data)
|
|
{
|
|
ogs_pool_id_t xact_id = OGS_INVALID_POOL_ID;
|
|
ogs_pfcp_xact_t *xact = NULL;
|
|
|
|
ogs_assert(data);
|
|
xact_id = OGS_POINTER_TO_UINT(data);
|
|
ogs_assert(xact_id >= OGS_MIN_POOL_ID && xact_id <= OGS_MAX_POOL_ID);
|
|
|
|
xact = ogs_pfcp_xact_find_by_id(xact_id);
|
|
if (!xact) {
|
|
ogs_error("PFCP Transaction has already been removed [%d]", xact_id);
|
|
return;;
|
|
}
|
|
ogs_assert(xact->node);
|
|
|
|
ogs_debug("[%d] %s Holding Timeout "
|
|
"for step %d type %d peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
xact->step, xact->seq[xact->step-1].type,
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
|
|
if (--xact->holding_rcount > 0) {
|
|
if (xact->tm_holding)
|
|
ogs_timer_start(xact->tm_holding,
|
|
ogs_local_conf()->time.message.pfcp.t1_holding_duration);
|
|
} else {
|
|
ogs_debug("[%d] %s Delete Transaction "
|
|
"for step %d type %d peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
xact->step, xact->seq[xact->step-1].type,
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
ogs_pfcp_xact_delete(xact);
|
|
}
|
|
}
|
|
|
|
static void delayed_commit_timeout(void *data)
|
|
{
|
|
ogs_pool_id_t xact_id = OGS_INVALID_POOL_ID;
|
|
ogs_pfcp_xact_t *xact = NULL;
|
|
|
|
ogs_assert(data);
|
|
xact_id = OGS_POINTER_TO_UINT(data);
|
|
ogs_assert(xact_id >= OGS_MIN_POOL_ID && xact_id <= OGS_MAX_POOL_ID);
|
|
|
|
xact = ogs_pfcp_xact_find_by_id(xact_id);
|
|
if (!xact) {
|
|
ogs_error("PFCP Transaction has already been removed [%d]", xact_id);
|
|
return;;
|
|
}
|
|
ogs_assert(xact->node);
|
|
|
|
ogs_debug("[%d] %s Delayed Send Timeout "
|
|
"for step %d type %d peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
xact->step, xact->seq[xact->step-1].type,
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
|
|
ogs_pfcp_xact_commit(xact);
|
|
}
|
|
|
|
int ogs_pfcp_xact_receive(
|
|
ogs_pfcp_node_t *node, ogs_pfcp_header_t *h, ogs_pfcp_xact_t **xact)
|
|
{
|
|
int rv;
|
|
|
|
uint8_t type;
|
|
uint32_t sqn, xid;
|
|
ogs_pfcp_xact_stage_t stage;
|
|
ogs_list_t *list = NULL;
|
|
ogs_pfcp_xact_t *new = NULL;
|
|
|
|
ogs_assert(node);
|
|
ogs_assert(h);
|
|
|
|
type = h->type;
|
|
sqn = h->sqn;
|
|
xid = OGS_PFCP_SQN_TO_XID(sqn);
|
|
stage = ogs_pfcp_xact_get_stage(type, xid);
|
|
|
|
switch (stage) {
|
|
case PFCP_XACT_INITIAL_STAGE:
|
|
list = &node->remote_list;
|
|
break;
|
|
case PFCP_XACT_INTERMEDIATE_STAGE:
|
|
list = &node->local_list;
|
|
break;
|
|
case PFCP_XACT_FINAL_STAGE:
|
|
list = &node->local_list;
|
|
break;
|
|
default:
|
|
ogs_error("[%d] Unexpected type %u from PFCP peer %s",
|
|
xid, type, ogs_sockaddr_to_string_static(node->addr_list));
|
|
return OGS_ERROR;
|
|
}
|
|
|
|
ogs_assert(list);
|
|
ogs_list_for_each(list, new) {
|
|
if (new->xid == xid) {
|
|
ogs_debug("[%d] %s Find peer %s",
|
|
new->xid,
|
|
new->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
ogs_sockaddr_to_string_static(node->addr_list));
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!new) {
|
|
ogs_debug("[%d] Cannot find new type %u from PFCP peer %s",
|
|
xid, type, ogs_sockaddr_to_string_static(node->addr_list));
|
|
new = ogs_pfcp_xact_remote_create(node, sqn);
|
|
}
|
|
ogs_assert(new);
|
|
|
|
ogs_debug("[%d] %s Receive peer %s",
|
|
new->xid,
|
|
new->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
ogs_sockaddr_to_string_static(node->addr_list));
|
|
|
|
rv = ogs_pfcp_xact_update_rx(new, type);
|
|
if (rv == OGS_ERROR) {
|
|
ogs_error("ogs_pfcp_xact_update_rx() failed");
|
|
ogs_pfcp_xact_delete(new);
|
|
return rv;
|
|
} else if (rv == OGS_RETRY) {
|
|
return rv;
|
|
}
|
|
|
|
*xact = new;
|
|
return rv;
|
|
}
|
|
|
|
static ogs_pfcp_xact_stage_t ogs_pfcp_xact_get_stage(uint8_t type, uint32_t xid)
|
|
{
|
|
ogs_pfcp_xact_stage_t stage = PFCP_XACT_UNKNOWN_STAGE;
|
|
|
|
switch (type) {
|
|
case OGS_PFCP_HEARTBEAT_REQUEST_TYPE:
|
|
case OGS_PFCP_ASSOCIATION_SETUP_REQUEST_TYPE:
|
|
case OGS_PFCP_ASSOCIATION_UPDATE_REQUEST_TYPE:
|
|
case OGS_PFCP_ASSOCIATION_RELEASE_REQUEST_TYPE:
|
|
case OGS_PFCP_SESSION_ESTABLISHMENT_REQUEST_TYPE:
|
|
case OGS_PFCP_SESSION_MODIFICATION_REQUEST_TYPE:
|
|
case OGS_PFCP_SESSION_DELETION_REQUEST_TYPE:
|
|
case OGS_PFCP_SESSION_REPORT_REQUEST_TYPE:
|
|
stage = PFCP_XACT_INITIAL_STAGE;
|
|
break;
|
|
case OGS_PFCP_HEARTBEAT_RESPONSE_TYPE:
|
|
case OGS_PFCP_ASSOCIATION_SETUP_RESPONSE_TYPE:
|
|
case OGS_PFCP_ASSOCIATION_UPDATE_RESPONSE_TYPE:
|
|
case OGS_PFCP_ASSOCIATION_RELEASE_RESPONSE_TYPE:
|
|
case OGS_PFCP_VERSION_NOT_SUPPORTED_RESPONSE_TYPE:
|
|
case OGS_PFCP_SESSION_ESTABLISHMENT_RESPONSE_TYPE:
|
|
case OGS_PFCP_SESSION_MODIFICATION_RESPONSE_TYPE:
|
|
case OGS_PFCP_SESSION_DELETION_RESPONSE_TYPE:
|
|
case OGS_PFCP_SESSION_REPORT_RESPONSE_TYPE:
|
|
stage = PFCP_XACT_FINAL_STAGE;
|
|
break;
|
|
|
|
default:
|
|
ogs_error("Not implemented PFCPv2 Message Type(%d)", type);
|
|
break;
|
|
}
|
|
|
|
return stage;
|
|
}
|
|
|
|
int ogs_pfcp_xact_delete(ogs_pfcp_xact_t *xact)
|
|
{
|
|
ogs_assert(xact);
|
|
ogs_assert(xact->node);
|
|
|
|
ogs_debug("[%d] %s Delete peer %s",
|
|
xact->xid,
|
|
xact->org == OGS_PFCP_LOCAL_ORIGINATOR ? "LOCAL " : "REMOTE",
|
|
ogs_sockaddr_to_string_static(xact->node->addr_list));
|
|
|
|
if (xact->seq[0].pkbuf)
|
|
ogs_pkbuf_free(xact->seq[0].pkbuf);
|
|
if (xact->seq[1].pkbuf)
|
|
ogs_pkbuf_free(xact->seq[1].pkbuf);
|
|
if (xact->seq[2].pkbuf)
|
|
ogs_pkbuf_free(xact->seq[2].pkbuf);
|
|
|
|
if (xact->tm_response)
|
|
ogs_timer_delete(xact->tm_response);
|
|
if (xact->tm_holding)
|
|
ogs_timer_delete(xact->tm_holding);
|
|
if (xact->tm_delayed_commit)
|
|
ogs_timer_delete(xact->tm_delayed_commit);
|
|
|
|
ogs_list_remove(xact->org == OGS_PFCP_LOCAL_ORIGINATOR ?
|
|
&xact->node->local_list : &xact->node->remote_list, xact);
|
|
ogs_pool_id_free(&pool, xact);
|
|
|
|
return OGS_OK;
|
|
}
|