| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <zephyr/logging/log.h> |
| LOG_MODULE_DECLARE(net_zperf, CONFIG_NET_ZPERF_LOG_LEVEL); |
| |
| #include <zephyr/linker/sections.h> |
| #include <zephyr/toolchain.h> |
| |
| #include <zephyr/kernel.h> |
| |
| #include <zephyr/net/socket.h> |
| #include <zephyr/net/zperf.h> |
| |
| #include "zperf_internal.h" |
| #include "zperf_session.h" |
| |
| /* To get net_sprint_ipv{4|6}_addr() */ |
| #define NET_LOG_ENABLED 1 |
| #include "net_private.h" |
| |
| static struct sockaddr_in6 *in6_addr_my; |
| static struct sockaddr_in *in4_addr_my; |
| |
| #if defined(CONFIG_NET_TC_THREAD_COOPERATIVE) |
| #define UDP_RECEIVER_THREAD_PRIORITY K_PRIO_COOP(8) |
| #else |
| #define UDP_RECEIVER_THREAD_PRIORITY K_PRIO_PREEMPT(8) |
| #endif |
| |
| #define UDP_RECEIVER_STACK_SIZE 2048 |
| |
| #define SOCK_ID_IPV4 0 |
| #define SOCK_ID_IPV6 1 |
| #define SOCK_ID_MAX 2 |
| |
| #define UDP_RECEIVER_BUF_SIZE 1500 |
| #define POLL_TIMEOUT_MS 100 |
| |
| static K_THREAD_STACK_DEFINE(udp_receiver_stack_area, UDP_RECEIVER_STACK_SIZE); |
| static struct k_thread udp_receiver_thread_data; |
| |
| static zperf_callback udp_session_cb; |
| static void *udp_user_data; |
| static bool udp_server_running; |
| static bool udp_server_stop; |
| static uint16_t udp_server_port; |
| static K_SEM_DEFINE(udp_server_run, 0, 1); |
| |
| static inline void build_reply(struct zperf_udp_datagram *hdr, |
| struct zperf_server_hdr *stat, |
| uint8_t *buf) |
| { |
| int pos = 0; |
| struct zperf_server_hdr *stat_hdr; |
| |
| memcpy(&buf[pos], hdr, sizeof(struct zperf_udp_datagram)); |
| pos += sizeof(struct zperf_udp_datagram); |
| |
| stat_hdr = (struct zperf_server_hdr *)&buf[pos]; |
| |
| stat_hdr->flags = htonl(stat->flags); |
| stat_hdr->total_len1 = htonl(stat->total_len1); |
| stat_hdr->total_len2 = htonl(stat->total_len2); |
| stat_hdr->stop_sec = htonl(stat->stop_sec); |
| stat_hdr->stop_usec = htonl(stat->stop_usec); |
| stat_hdr->error_cnt = htonl(stat->error_cnt); |
| stat_hdr->outorder_cnt = htonl(stat->outorder_cnt); |
| stat_hdr->datagrams = htonl(stat->datagrams); |
| stat_hdr->jitter1 = htonl(stat->jitter1); |
| stat_hdr->jitter2 = htonl(stat->jitter2); |
| } |
| |
| /* Send statistics to the remote client */ |
| #define BUF_SIZE sizeof(struct zperf_udp_datagram) + \ |
| sizeof(struct zperf_server_hdr) |
| |
| static int zperf_receiver_send_stat(int sock, const struct sockaddr *addr, |
| struct zperf_udp_datagram *hdr, |
| struct zperf_server_hdr *stat) |
| { |
| uint8_t reply[BUF_SIZE]; |
| int ret; |
| |
| build_reply(hdr, stat, reply); |
| |
| ret = zsock_sendto(sock, reply, sizeof(reply), 0, addr, |
| addr->sa_family == AF_INET6 ? |
| sizeof(struct sockaddr_in6) : |
| sizeof(struct sockaddr_in)); |
| if (ret < 0) { |
| NET_ERR("Cannot send data to peer (%d)", errno); |
| } |
| |
| return ret; |
| } |
| |
| static void udp_received(int sock, const struct sockaddr *addr, uint8_t *data, |
| size_t datalen) |
| { |
| struct zperf_udp_datagram *hdr; |
| struct session *session; |
| int32_t transit_time; |
| int64_t time; |
| int32_t id; |
| |
| if (datalen < sizeof(struct zperf_udp_datagram)) { |
| NET_WARN("Short iperf packet!"); |
| return; |
| } |
| |
| hdr = (struct zperf_udp_datagram *)data; |
| time = k_uptime_ticks(); |
| |
| session = get_session(addr, SESSION_UDP); |
| if (!session) { |
| NET_ERR("Cannot get a session!"); |
| return; |
| } |
| |
| id = ntohl(hdr->id); |
| |
| switch (session->state) { |
| case STATE_COMPLETED: |
| case STATE_NULL: |
| if (id < 0) { |
| /* Session is already completed: Resend the stat packet |
| * and continue |
| */ |
| if (zperf_receiver_send_stat(sock, addr, hdr, |
| &session->stat) < 0) { |
| NET_ERR("Failed to send the packet"); |
| } |
| } else { |
| zperf_reset_session_stats(session); |
| session->state = STATE_ONGOING; |
| session->start_time = time; |
| |
| /* Start a new session! */ |
| if (udp_session_cb != NULL) { |
| udp_session_cb(ZPERF_SESSION_STARTED, NULL, |
| udp_user_data); |
| } |
| } |
| break; |
| case STATE_ONGOING: |
| if (id < 0) { /* Negative id means session end. */ |
| struct zperf_results results = { 0 }; |
| uint32_t duration; |
| |
| duration = k_ticks_to_us_ceil32(time - |
| session->start_time); |
| |
| /* Update state machine */ |
| session->state = STATE_COMPLETED; |
| |
| /* Fill statistics */ |
| session->stat.flags = 0x80000000; |
| session->stat.total_len1 = session->length >> 32; |
| session->stat.total_len2 = |
| session->length % 0xFFFFFFFF; |
| session->stat.stop_sec = duration / USEC_PER_SEC; |
| session->stat.stop_usec = duration % USEC_PER_SEC; |
| session->stat.error_cnt = session->error; |
| session->stat.outorder_cnt = session->outorder; |
| session->stat.datagrams = session->counter; |
| session->stat.jitter1 = 0; |
| session->stat.jitter2 = session->jitter; |
| |
| if (zperf_receiver_send_stat(sock, addr, hdr, |
| &session->stat) < 0) { |
| NET_ERR("Failed to send the packet"); |
| } |
| |
| results.nb_packets_rcvd = session->counter; |
| results.nb_packets_lost = session->error; |
| results.nb_packets_outorder = session->outorder; |
| results.total_len = session->length; |
| results.time_in_us = duration; |
| results.jitter_in_us = session->jitter; |
| results.packet_size = session->length / session->counter; |
| |
| if (udp_session_cb != NULL) { |
| udp_session_cb(ZPERF_SESSION_FINISHED, &results, |
| udp_user_data); |
| } |
| } else { |
| /* Update counter */ |
| session->counter++; |
| session->length += datalen; |
| |
| /* Compute jitter */ |
| transit_time = time_delta( |
| k_ticks_to_us_ceil32(time), |
| ntohl(hdr->tv_sec) * USEC_PER_SEC + |
| ntohl(hdr->tv_usec)); |
| if (session->last_transit_time != 0) { |
| int32_t delta_transit = transit_time - |
| session->last_transit_time; |
| |
| delta_transit = |
| (delta_transit < 0) ? |
| -delta_transit : delta_transit; |
| |
| session->jitter += |
| (delta_transit - session->jitter) / 16; |
| } |
| |
| session->last_transit_time = transit_time; |
| |
| /* Check header id */ |
| if (id != session->next_id) { |
| if (id < session->next_id) { |
| session->outorder++; |
| } else { |
| session->error += id - session->next_id; |
| session->next_id = id + 1; |
| } |
| } else { |
| session->next_id++; |
| } |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void udp_server_session(void) |
| { |
| static uint8_t buf[UDP_RECEIVER_BUF_SIZE]; |
| struct zsock_pollfd fds[SOCK_ID_MAX] = { 0 }; |
| int ret; |
| |
| for (int i = 0; i < ARRAY_SIZE(fds); i++) { |
| fds[i].fd = -1; |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV4)) { |
| const struct in_addr *in4_addr = NULL; |
| |
| in4_addr_my = zperf_get_sin(); |
| |
| fds[SOCK_ID_IPV4].fd = zsock_socket(AF_INET, SOCK_DGRAM, |
| IPPROTO_UDP); |
| if (fds[SOCK_ID_IPV4].fd < 0) { |
| NET_ERR("Cannot create IPv4 network socket."); |
| goto error; |
| } |
| |
| if (MY_IP4ADDR && strlen(MY_IP4ADDR)) { |
| /* Use setting IP */ |
| ret = zperf_get_ipv4_addr(MY_IP4ADDR, |
| &in4_addr_my->sin_addr); |
| if (ret < 0) { |
| NET_WARN("Unable to set IPv4"); |
| goto use_existing_ipv4; |
| } |
| } else { |
| use_existing_ipv4: |
| /* Use existing IP */ |
| in4_addr = zperf_get_default_if_in4_addr(); |
| if (!in4_addr) { |
| NET_ERR("Unable to get IPv4 by default"); |
| goto error; |
| } |
| memcpy(&in4_addr_my->sin_addr, in4_addr, |
| sizeof(struct in_addr)); |
| } |
| |
| NET_INFO("Binding to %s", |
| net_sprint_ipv4_addr(&in4_addr_my->sin_addr)); |
| |
| in4_addr_my->sin_port = htons(udp_server_port); |
| |
| ret = zsock_bind(fds[SOCK_ID_IPV4].fd, |
| (struct sockaddr *)in4_addr_my, |
| sizeof(struct sockaddr_in)); |
| if (ret < 0) { |
| NET_ERR("Cannot bind IPv4 UDP port %d (%d)", |
| ntohs(in4_addr_my->sin_port), |
| errno); |
| goto error; |
| } |
| |
| fds[SOCK_ID_IPV4].events = ZSOCK_POLLIN; |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV6)) { |
| const struct in6_addr *in6_addr = NULL; |
| |
| in6_addr_my = zperf_get_sin6(); |
| |
| fds[SOCK_ID_IPV6].fd = zsock_socket(AF_INET6, SOCK_DGRAM, |
| IPPROTO_UDP); |
| if (fds[SOCK_ID_IPV6].fd < 0) { |
| NET_ERR("Cannot create IPv4 network socket."); |
| goto error; |
| } |
| |
| if (MY_IP6ADDR && strlen(MY_IP6ADDR)) { |
| /* Use setting IP */ |
| ret = zperf_get_ipv6_addr(MY_IP6ADDR, |
| MY_PREFIX_LEN_STR, |
| &in6_addr_my->sin6_addr); |
| if (ret < 0) { |
| NET_WARN("Unable to set IPv6"); |
| goto use_existing_ipv6; |
| } |
| } else { |
| use_existing_ipv6: |
| /* Use existing IP */ |
| in6_addr = zperf_get_default_if_in6_addr(); |
| if (!in6_addr) { |
| NET_ERR("Unable to get IPv4 by default"); |
| goto error; |
| } |
| memcpy(&in6_addr_my->sin6_addr, in6_addr, |
| sizeof(struct in6_addr)); |
| } |
| |
| NET_INFO("Binding to %s", |
| net_sprint_ipv6_addr(&in6_addr_my->sin6_addr)); |
| |
| in6_addr_my->sin6_port = htons(udp_server_port); |
| |
| ret = zsock_bind(fds[SOCK_ID_IPV6].fd, |
| (struct sockaddr *)in6_addr_my, |
| sizeof(struct sockaddr_in6)); |
| if (ret < 0) { |
| NET_ERR("Cannot bind IPv6 UDP port %d (%d)", |
| ntohs(in6_addr_my->sin6_port), |
| ret); |
| goto error; |
| } |
| |
| fds[SOCK_ID_IPV6].events = ZSOCK_POLLIN; |
| } |
| |
| NET_INFO("Listening on port %d", udp_server_port); |
| |
| while (true) { |
| ret = zsock_poll(fds, ARRAY_SIZE(fds), POLL_TIMEOUT_MS); |
| if (ret < 0) { |
| NET_ERR("UDP receiver poll error (%d)", errno); |
| goto error; |
| } |
| |
| if (udp_server_stop) { |
| goto cleanup; |
| } |
| |
| if (ret == 0) { |
| continue; |
| } |
| |
| for (int i = 0; i < ARRAY_SIZE(fds); i++) { |
| struct sockaddr addr; |
| socklen_t addrlen = sizeof(addr); |
| |
| if ((fds[i].revents & ZSOCK_POLLERR) || |
| (fds[i].revents & ZSOCK_POLLNVAL)) { |
| NET_ERR("UDP receiver IPv%d socket error", |
| (i == SOCK_ID_IPV4) ? 4 : 6); |
| goto error; |
| } |
| |
| if (!(fds[i].revents & ZSOCK_POLLIN)) { |
| continue; |
| } |
| |
| ret = zsock_recvfrom(fds[i].fd, buf, sizeof(buf), 0, |
| &addr, &addrlen); |
| if (ret < 0) { |
| NET_ERR("recv failed on IPv%d socket (%d)", |
| (i == SOCK_ID_IPV4) ? 4 : 6, errno); |
| goto error; |
| } |
| |
| udp_received(fds[i].fd, &addr, buf, ret); |
| } |
| } |
| |
| error: |
| if (udp_session_cb != NULL) { |
| udp_session_cb(ZPERF_SESSION_ERROR, NULL, udp_user_data); |
| } |
| |
| cleanup: |
| for (int i = 0; i < ARRAY_SIZE(fds); i++) { |
| if (fds[i].fd >= 0) { |
| zsock_close(fds[i].fd); |
| } |
| } |
| } |
| |
| static void udp_receiver_thread(void *ptr1, void *ptr2, void *ptr3) |
| { |
| ARG_UNUSED(ptr1); |
| ARG_UNUSED(ptr2); |
| ARG_UNUSED(ptr3); |
| |
| while (true) { |
| k_sem_take(&udp_server_run, K_FOREVER); |
| |
| udp_server_session(); |
| |
| udp_server_running = false; |
| } |
| } |
| |
| void zperf_udp_receiver_init(void) |
| { |
| k_thread_create(&udp_receiver_thread_data, |
| udp_receiver_stack_area, |
| K_THREAD_STACK_SIZEOF(udp_receiver_stack_area), |
| udp_receiver_thread, |
| NULL, NULL, NULL, |
| UDP_RECEIVER_THREAD_PRIORITY, |
| IS_ENABLED(CONFIG_USERSPACE) ? K_USER | |
| K_INHERIT_PERMS : 0, |
| K_NO_WAIT); |
| } |
| |
| int zperf_udp_download(const struct zperf_download_params *param, |
| zperf_callback callback, void *user_data) |
| { |
| if (param == NULL || callback == NULL) { |
| return -EINVAL; |
| } |
| |
| if (udp_server_running) { |
| return -EALREADY; |
| } |
| |
| udp_session_cb = callback; |
| udp_user_data = user_data; |
| udp_server_port = param->port; |
| udp_server_running = true; |
| udp_server_stop = false; |
| |
| k_sem_give(&udp_server_run); |
| |
| return 0; |
| } |
| |
| int zperf_udp_download_stop(void) |
| { |
| if (!udp_server_running) { |
| return -EALREADY; |
| } |
| |
| udp_server_stop = true; |
| udp_session_cb = NULL; |
| |
| return 0; |
| } |