| /* |
| * Copyright (c) 2016 Intel Corporation |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <logging/log.h> |
| LOG_MODULE_DECLARE(net_zperf_sample, LOG_LEVEL_DBG); |
| |
| #include <linker/sections.h> |
| #include <toolchain.h> |
| |
| #include <zephyr.h> |
| #include <sys/printk.h> |
| |
| #include <net/net_core.h> |
| #include <net/net_pkt.h> |
| #include <net/udp.h> |
| |
| #include "zperf.h" |
| #include "zperf_internal.h" |
| #include "shell_utils.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; |
| |
| static inline void set_dst_addr(const struct shell *shell, |
| sa_family_t family, |
| struct net_pkt *pkt, |
| union net_ip_header *ip_hdr, |
| struct net_udp_hdr *udp_hdr, |
| struct sockaddr *dst_addr) |
| { |
| if (IS_ENABLED(CONFIG_NET_IPV6) && family == AF_INET6) { |
| net_ipv6_addr_copy_raw((uint8_t *)&net_sin6(dst_addr)->sin6_addr, |
| ip_hdr->ipv6->src); |
| net_sin6(dst_addr)->sin6_family = AF_INET6; |
| net_sin6(dst_addr)->sin6_port = udp_hdr->src_port; |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV4) && family == AF_INET) { |
| net_ipv4_addr_copy_raw((uint8_t *)&net_sin(dst_addr)->sin_addr, |
| ip_hdr->ipv4->src); |
| net_sin(dst_addr)->sin_family = AF_INET; |
| net_sin(dst_addr)->sin_port = udp_hdr->src_port; |
| } |
| } |
| |
| 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(const struct shell *shell, |
| struct net_context *context, |
| struct net_pkt *pkt, |
| union net_ip_header *ip_hdr, |
| struct net_udp_hdr *udp_hdr, |
| struct zperf_udp_datagram *hdr, |
| struct zperf_server_hdr *stat) |
| { |
| uint8_t reply[BUF_SIZE]; |
| struct sockaddr dst_addr; |
| int ret; |
| |
| shell_fprintf(shell, SHELL_NORMAL, |
| "Received %d bytes\n", net_pkt_remaining_data(pkt)); |
| |
| set_dst_addr(shell, net_pkt_family(pkt), |
| pkt, ip_hdr, udp_hdr, &dst_addr); |
| |
| build_reply(hdr, stat, reply); |
| |
| ret = net_context_sendto(context, reply, BUF_SIZE, &dst_addr, |
| net_pkt_family(pkt) == AF_INET6 ? |
| sizeof(struct sockaddr_in6) : |
| sizeof(struct sockaddr_in), |
| NULL, K_NO_WAIT, NULL); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| " Cannot send data to peer (%d)", ret); |
| } |
| |
| return ret; |
| } |
| |
| static void udp_received(struct net_context *context, |
| struct net_pkt *pkt, |
| union net_ip_header *ip_hdr, |
| union net_proto_header *proto_hdr, |
| int status, |
| void *user_data) |
| { |
| NET_PKT_DATA_ACCESS_DEFINE(zperf, struct zperf_udp_datagram); |
| struct net_udp_hdr *udp_hdr = proto_hdr->udp; |
| const struct shell *shell = user_data; |
| struct zperf_udp_datagram *hdr; |
| struct session *session; |
| int32_t transit_time; |
| int64_t time; |
| int32_t id; |
| |
| if (!pkt) { |
| return; |
| } |
| |
| hdr = (struct zperf_udp_datagram *)net_pkt_get_data(pkt, &zperf); |
| if (!hdr) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Short iperf packet!\n"); |
| goto out; |
| } |
| |
| time = k_uptime_ticks(); |
| |
| session = get_session(pkt, ip_hdr, proto_hdr, SESSION_UDP); |
| if (!session) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot get a session!\n"); |
| goto out; |
| } |
| |
| 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(shell, context, pkt, |
| ip_hdr, udp_hdr, hdr, |
| &session->stat) < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Failed to send the packet\n"); |
| } |
| } else { |
| /* Start a new session! */ |
| shell_fprintf(shell, SHELL_NORMAL, |
| "New session started.\n"); |
| |
| zperf_reset_session_stats(session); |
| session->state = STATE_ONGOING; |
| session->start_time = time; |
| } |
| break; |
| case STATE_ONGOING: |
| if (id < 0) { /* Negative id means session end. */ |
| uint32_t rate_in_kbps; |
| uint32_t duration; |
| |
| shell_fprintf(shell, SHELL_NORMAL, "End of session!\n"); |
| |
| duration = k_ticks_to_us_ceil32(time - |
| session->start_time); |
| |
| /* Update state machine */ |
| session->state = STATE_COMPLETED; |
| |
| /* Compute baud rate */ |
| if (duration != 0U) { |
| rate_in_kbps = (uint32_t) |
| ((session->length * 8ULL * |
| (uint64_t)USEC_PER_SEC) / |
| ((uint64_t)duration * 1024ULL)); |
| } else { |
| rate_in_kbps = 0U; |
| } |
| |
| /* 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(shell, context, pkt, |
| ip_hdr, udp_hdr, hdr, |
| &session->stat) < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Failed to send the packet\n"); |
| } |
| |
| shell_fprintf(shell, SHELL_NORMAL, |
| " duration:\t\t"); |
| print_number(shell, duration, TIME_US, TIME_US_UNIT); |
| shell_fprintf(shell, SHELL_NORMAL, "\n"); |
| |
| shell_fprintf(shell, SHELL_NORMAL, |
| " received packets:\t%u\n", |
| session->counter); |
| shell_fprintf(shell, SHELL_NORMAL, |
| " nb packets lost:\t%u\n", |
| session->outorder); |
| shell_fprintf(shell, SHELL_NORMAL, |
| " nb packets outorder:\t%u\n", |
| session->error); |
| |
| shell_fprintf(shell, SHELL_NORMAL, |
| " jitter:\t\t\t"); |
| print_number(shell, session->jitter, TIME_US, |
| TIME_US_UNIT); |
| shell_fprintf(shell, SHELL_NORMAL, "\n"); |
| |
| shell_fprintf(shell, SHELL_NORMAL, |
| " rate:\t\t\t"); |
| print_number(shell, rate_in_kbps, KBPS, KBPS_UNIT); |
| shell_fprintf(shell, SHELL_NORMAL, "\n"); |
| } else { |
| /* Update counter */ |
| session->counter++; |
| session->length += net_pkt_remaining_data(pkt); |
| |
| /* 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; |
| } |
| |
| out: |
| net_pkt_unref(pkt); |
| } |
| |
| void zperf_udp_receiver_init(const struct shell *shell, int port) |
| { |
| struct net_context *context4 = NULL; |
| struct net_context *context6 = NULL; |
| const struct in_addr *in4_addr = NULL; |
| const struct in6_addr *in6_addr = NULL; |
| int ret; |
| |
| if (IS_ENABLED(CONFIG_NET_IPV6)) { |
| in6_addr_my = zperf_get_sin6(); |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV4)) { |
| in4_addr_my = zperf_get_sin(); |
| } |
| |
| |
| if (IS_ENABLED(CONFIG_NET_IPV4)) { |
| ret = net_context_get(AF_INET, SOCK_DGRAM, IPPROTO_UDP, |
| &context4); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot get IPv4 network context.\n"); |
| return; |
| } |
| |
| if (MY_IP4ADDR && strlen(MY_IP4ADDR)) { |
| /* Use setting IP */ |
| ret = zperf_get_ipv4_addr(shell, MY_IP4ADDR, |
| &in4_addr_my->sin_addr); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Unable to set IPv4\n"); |
| goto use_existing_ipv4; |
| } |
| } else { |
| use_existing_ipv4: |
| /* Use existing IP */ |
| in4_addr = zperf_get_default_if_in4_addr(); |
| if (!in4_addr) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Unable to get IPv4 by default\n"); |
| return; |
| } |
| memcpy(&in4_addr_my->sin_addr, in4_addr, |
| sizeof(struct in_addr)); |
| } |
| |
| shell_fprintf(shell, SHELL_NORMAL, "Binding to %s\n", |
| net_sprint_ipv4_addr(&in4_addr_my->sin_addr)); |
| |
| in4_addr_my->sin_port = htons(port); |
| |
| if (context4) { |
| ret = net_context_bind(context4, |
| (struct sockaddr *)in4_addr_my, |
| sizeof(struct sockaddr_in)); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot bind IPv4 UDP port %d (%d)\n", |
| ntohs(in4_addr_my->sin_port), |
| ret); |
| return; |
| } |
| } |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV6)) { |
| ret = net_context_get(AF_INET6, SOCK_DGRAM, IPPROTO_UDP, |
| &context6); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot get IPv6 network context.\n"); |
| return; |
| } |
| |
| if (MY_IP6ADDR && strlen(MY_IP6ADDR)) { |
| /* Use setting IP */ |
| ret = zperf_get_ipv6_addr(shell, MY_IP6ADDR, |
| MY_PREFIX_LEN_STR, |
| &in6_addr_my->sin6_addr); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Unable to set IPv6\n"); |
| goto use_existing_ipv6; |
| } |
| } else { |
| use_existing_ipv6: |
| /* Use existing IP */ |
| in6_addr = zperf_get_default_if_in6_addr(); |
| if (!in6_addr) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Unable to get IPv4 by default\n"); |
| return; |
| } |
| memcpy(&in6_addr_my->sin6_addr, in6_addr, |
| sizeof(struct in6_addr)); |
| } |
| |
| shell_fprintf(shell, SHELL_NORMAL, "Binding to %s\n", |
| net_sprint_ipv6_addr(&in6_addr_my->sin6_addr)); |
| |
| in6_addr_my->sin6_port = htons(port); |
| |
| if (context6) { |
| ret = net_context_bind(context6, |
| (struct sockaddr *)in6_addr_my, |
| sizeof(struct sockaddr_in6)); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot bind IPv6 UDP port %d (%d)\n", |
| ntohs(in6_addr_my->sin6_port), |
| ret); |
| return; |
| } |
| } |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV6)) { |
| ret = net_context_recv(context6, udp_received, K_NO_WAIT, |
| (void *)shell); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot receive IPv6 UDP packets\n"); |
| return; |
| } |
| } |
| |
| if (IS_ENABLED(CONFIG_NET_IPV4)) { |
| ret = net_context_recv(context4, udp_received, K_NO_WAIT, |
| (void *)shell); |
| if (ret < 0) { |
| shell_fprintf(shell, SHELL_WARNING, |
| "Cannot receive IPv4 UDP packets\n"); |
| return; |
| } |
| } |
| |
| shell_fprintf(shell, SHELL_NORMAL, |
| "Listening on port %d\n", port); |
| } |