116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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* Copyright (c) 2015 Intel Corporation
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* Copyright (c) 2023 Arm Limited (or its affiliates). All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/logging/log.h>
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LOG_MODULE_DECLARE(net_zperf, CONFIG_NET_ZPERF_LOG_LEVEL);
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#include <zephyr/kernel.h>
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#include <zephyr/net/net_pkt.h>
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#include <zephyr/net/udp.h>
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#include "zperf_session.h"
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#define SESSION_MAX CONFIG_NET_ZPERF_MAX_SESSIONS
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static struct session sessions[SESSION_PROTO_END][SESSION_MAX];
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/* Get session from a given packet */
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struct session *get_session(const struct sockaddr *addr,
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enum session_proto proto)
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{
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struct session *active = NULL;
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struct session *free = NULL;
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int i = 0;
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const struct sockaddr_in *addr4 = (const struct sockaddr_in *)addr;
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const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6 *)addr;
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if (proto != SESSION_TCP && proto != SESSION_UDP) {
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NET_ERR("Error! unsupported proto.\n");
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return NULL;
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}
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/* Check whether we already have an active session */
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while (!active && i < SESSION_MAX) {
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struct session *ptr = &sessions[proto][i];
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if (IS_ENABLED(CONFIG_NET_IPV4) &&
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addr->sa_family == AF_INET &&
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ptr->ip.family == AF_INET &&
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ptr->port == addr4->sin_port &&
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net_ipv4_addr_cmp(&ptr->ip.in_addr, &addr4->sin_addr)) {
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/* We found an active session */
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active = ptr;
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break;
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}
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if (IS_ENABLED(CONFIG_NET_IPV6) &&
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addr->sa_family == AF_INET6 &&
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ptr->ip.family == AF_INET6 &&
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ptr->port == addr6->sin6_port &&
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net_ipv6_addr_cmp(&ptr->ip.in6_addr, &addr6->sin6_addr)) {
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/* We found an active session */
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active = ptr;
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break;
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}
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if (!free && (ptr->state == STATE_NULL ||
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ptr->state == STATE_COMPLETED)) {
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/* We found a free slot - just in case */
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free = ptr;
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}
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i++;
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}
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/* If no active session then create a new one */
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if (!active && free) {
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active = free;
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if (IS_ENABLED(CONFIG_NET_IPV4) && addr->sa_family == AF_INET) {
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active->port = addr4->sin_port;
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active->ip.family = AF_INET;
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net_ipaddr_copy(&active->ip.in_addr, &addr4->sin_addr);
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} else if (IS_ENABLED(CONFIG_NET_IPV6) &&
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addr->sa_family == AF_INET6) {
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active->port = addr6->sin6_port;
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active->ip.family = AF_INET6;
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net_ipaddr_copy(&active->ip.in6_addr, &addr6->sin6_addr);
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}
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}
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return active;
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}
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void zperf_reset_session_stats(struct session *session)
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{
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if (!session) {
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return;
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}
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session->counter = 0U;
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session->start_time = 0U;
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session->next_id = 1U;
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session->length = 0U;
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session->outorder = 0U;
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session->error = 0U;
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session->jitter = 0;
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session->last_transit_time = 0;
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}
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void zperf_session_init(void)
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{
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int i, j;
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for (i = 0; i < SESSION_PROTO_END; i++) {
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for (j = 0; j < SESSION_MAX; j++) {
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sessions[i][j].state = STATE_NULL;
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zperf_reset_session_stats(&(sessions[i][j]));
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}
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}
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}
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