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Mon, 13 Feb 2017 04:49:13 -0800 (PST) Received: from localhost.localdomain ([193.202.22.66]) by smtp.gmail.com with ESMTPSA id m84sm5253916wmf.10.2017.02.13.04.49.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 13 Feb 2017 04:49:12 -0800 (PST) From: Bogdan Pricope To: lng-odp@lists.linaro.org Date: Mon, 13 Feb 2017 14:49:23 +0200 Message-Id: <1486990163-20495-1-git-send-email-bogdan.pricope@linaro.org> X-Mailer: git-send-email 1.9.1 Subject: [lng-odp] [PATCH 1/5] test: generator: compose sending packets from reference packet plus differences X-BeenThere: lng-odp@lists.linaro.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: "The OpenDataPlane \(ODP\) List" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: lng-odp-bounces@lists.linaro.org Sender: "lng-odp" Signed-off-by: Bogdan Pricope --- example/generator/odp_generator.c | 131 +++++++++++++++++++++++++++++++++----- 1 file changed, 114 insertions(+), 17 deletions(-) -- 1.9.1 diff --git a/example/generator/odp_generator.c b/example/generator/odp_generator.c index 8062d87..d1e3ecc 100644 --- a/example/generator/odp_generator.c +++ b/example/generator/odp_generator.c @@ -170,21 +170,20 @@ static int scan_ip(char *buf, unsigned int *paddr) } /** - * set up an udp packet + * set up an udp packet reference * * @param pool Buffer pool to create packet in * * @return Handle of created packet * @retval ODP_PACKET_INVALID Packet could not be created */ -static odp_packet_t pack_udp_pkt(odp_pool_t pool) +static odp_packet_t setup_udp_pkt_ref(odp_pool_t pool) { odp_packet_t pkt; char *buf; odph_ethhdr_t *eth; odph_ipv4hdr_t *ip; odph_udphdr_t *udp; - unsigned short seq; pkt = odp_packet_alloc(pool, args->appl.payload + ODPH_UDPHDR_LEN + ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); @@ -200,8 +199,10 @@ static odp_packet_t pack_udp_pkt(odp_pool_t pool) memcpy((char *)eth->src.addr, args->appl.srcmac.addr, ODPH_ETHADDR_LEN); memcpy((char *)eth->dst.addr, args->appl.dstmac.addr, ODPH_ETHADDR_LEN); eth->type = odp_cpu_to_be_16(ODPH_ETHTYPE_IPV4); + /* ip */ odp_packet_l3_offset_set(pkt, ODPH_ETHHDR_LEN); + odp_packet_has_ipv4_set(pkt, 1); ip = (odph_ipv4hdr_t *)(buf + ODPH_ETHHDR_LEN); ip->dst_addr = odp_cpu_to_be_32(args->appl.dstip); ip->src_addr = odp_cpu_to_be_32(args->appl.srcip); @@ -209,12 +210,13 @@ static odp_packet_t pack_udp_pkt(odp_pool_t pool) ip->tot_len = odp_cpu_to_be_16(args->appl.payload + ODPH_UDPHDR_LEN + ODPH_IPV4HDR_LEN); ip->proto = ODPH_IPPROTO_UDP; - seq = odp_atomic_fetch_add_u64(&counters.seq, 1) % 0xFFFF; - ip->id = odp_cpu_to_be_16(seq); + ip->id = 0; + ip->ttl = 64; ip->chksum = 0; - odph_ipv4_csum_update(pkt); + /* udp */ odp_packet_l4_offset_set(pkt, ODPH_ETHHDR_LEN + ODPH_IPV4HDR_LEN); + odp_packet_has_udp_set(pkt, 1); udp = (odph_udphdr_t *)(buf + ODPH_ETHHDR_LEN + ODPH_IPV4HDR_LEN); udp->src_port = 0; udp->dst_port = 0; @@ -226,27 +228,60 @@ static odp_packet_t pack_udp_pkt(odp_pool_t pool) } /** - * Set up an icmp packet + * set up an udp packet + * + * @param pool Buffer pool to create packet in + * @param pkt_ref Reference UDP packet + * + * @return Handle of created packet + * @retval ODP_PACKET_INVALID Packet could not be created + */ +static odp_packet_t pack_udp_pkt(odp_pool_t pool, odp_packet_t pkt_ref) +{ + odp_packet_t pkt; + char *buf; + odph_ipv4hdr_t *ip; + unsigned short seq; + + pkt = odp_packet_alloc(pool, args->appl.payload + ODPH_UDPHDR_LEN + + ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); + + if (pkt == ODP_PACKET_INVALID) + return pkt; + + buf = (char *)odp_packet_data(pkt); + odp_memcpy(buf, odp_packet_data(pkt_ref), + args->appl.payload + ODPH_UDPHDR_LEN + + ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); + + /*Update IP ID and checksum*/ + ip = (odph_ipv4hdr_t *)(buf + ODPH_ETHHDR_LEN); + seq = odp_atomic_fetch_add_u64(&counters.seq, 1) % 0xFFFF; + ip->id = odp_cpu_to_be_16(seq); + ip->chksum = odph_chksum(ip, ODPH_IPV4HDR_LEN); + + return pkt; +} + +/** + * Set up an icmp packet reference * * @param pool Buffer pool to create packet in * * @return Handle of created packet * @retval ODP_PACKET_INVALID Packet could not be created */ -static odp_packet_t pack_icmp_pkt(odp_pool_t pool) +static odp_packet_t setup_icmp_pkt_ref(odp_pool_t pool) { odp_packet_t pkt; char *buf; odph_ethhdr_t *eth; odph_ipv4hdr_t *ip; odph_icmphdr_t *icmp; - struct timeval tval; - uint8_t *tval_d; - unsigned short seq; args->appl.payload = 56; pkt = odp_packet_alloc(pool, args->appl.payload + ODPH_ICMPHDR_LEN + - ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); + ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); if (pkt == ODP_PACKET_INVALID) return pkt; @@ -265,18 +300,63 @@ static odp_packet_t pack_icmp_pkt(odp_pool_t pool) ip->dst_addr = odp_cpu_to_be_32(args->appl.dstip); ip->src_addr = odp_cpu_to_be_32(args->appl.srcip); ip->ver_ihl = ODPH_IPV4 << 4 | ODPH_IPV4HDR_IHL_MIN; + ip->ttl = 64; ip->tot_len = odp_cpu_to_be_16(args->appl.payload + ODPH_ICMPHDR_LEN + ODPH_IPV4HDR_LEN); ip->proto = ODPH_IPPROTO_ICMP; - seq = odp_atomic_fetch_add_u64(&counters.seq, 1) % 0xffff; - ip->id = odp_cpu_to_be_16(seq); + ip->id = 0; ip->chksum = 0; - odph_ipv4_csum_update(pkt); + /* icmp */ icmp = (odph_icmphdr_t *)(buf + ODPH_ETHHDR_LEN + ODPH_IPV4HDR_LEN); icmp->type = ICMP_ECHO; icmp->code = 0; icmp->un.echo.id = 0; + icmp->un.echo.sequence = 0; + icmp->chksum = 0; + + return pkt; +} + +/** + * Set up an icmp packet + * + * @param pool Buffer pool to create packet in + * @param pkt_ref Reference ICMP packet + * + * @return Handle of created packet + * @retval ODP_PACKET_INVALID Packet could not be created + */ +static odp_packet_t pack_icmp_pkt(odp_pool_t pool, odp_packet_t pkt_ref) +{ + odp_packet_t pkt; + char *buf; + odph_ipv4hdr_t *ip; + odph_icmphdr_t *icmp; + struct timeval tval; + uint8_t *tval_d; + unsigned short seq; + + pkt = odp_packet_alloc(pool, args->appl.payload + ODPH_ICMPHDR_LEN + + ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); + + if (pkt == ODP_PACKET_INVALID) + return pkt; + + buf = (char *)odp_packet_data(pkt); + odp_memcpy(buf, odp_packet_data(pkt_ref), + args->appl.payload + ODPH_ICMPHDR_LEN + + ODPH_IPV4HDR_LEN + ODPH_ETHHDR_LEN); + + /* ip */ + odp_packet_l3_offset_set(pkt, ODPH_ETHHDR_LEN); + ip = (odph_ipv4hdr_t *)(buf + ODPH_ETHHDR_LEN); + seq = odp_atomic_fetch_add_u64(&counters.seq, 1) % 0xffff; + ip->id = odp_cpu_to_be_16(seq); + ip->chksum = odph_chksum(ip, ODPH_IPV4HDR_LEN); + + /* icmp */ + icmp = (odph_icmphdr_t *)(buf + ODPH_ETHHDR_LEN + ODPH_IPV4HDR_LEN); icmp->un.echo.sequence = ip->id; tval_d = (uint8_t *)(buf + ODPH_ETHHDR_LEN + ODPH_IPV4HDR_LEN + ODPH_ICMPHDR_LEN); @@ -357,6 +437,7 @@ static int gen_send_thread(void *arg) thread_args_t *thr_args; odp_pktout_queue_t pktout; odp_packet_t pkt; + odp_packet_t pkt_ref = ODP_PACKET_INVALID; thr = odp_thread_id(); thr_args = arg; @@ -373,6 +454,21 @@ static int gen_send_thread(void *arg) return -1; } + if (args->appl.mode == APPL_MODE_UDP) + pkt_ref = setup_udp_pkt_ref(thr_args->pool); + else if (args->appl.mode == APPL_MODE_PING) + pkt_ref = setup_icmp_pkt_ref(thr_args->pool); + else { + EXAMPLE_ERR(" [%02i] Error: invalid processing mode %d\n", + thr, args->appl.mode); + return -1; + } + if (pkt_ref == ODP_PACKET_INVALID) { + EXAMPLE_ERR(" [%2i] Error: reference packet creation failed\n", + thr); + return -1; + } + printf(" [%02i] created mode: SEND\n", thr); odp_barrier_wait(&barrier); @@ -386,9 +482,9 @@ static int gen_send_thread(void *arg) pkt = ODP_PACKET_INVALID; if (args->appl.mode == APPL_MODE_UDP) - pkt = pack_udp_pkt(thr_args->pool); + pkt = pack_udp_pkt(thr_args->pool, pkt_ref); else if (args->appl.mode == APPL_MODE_PING) - pkt = pack_icmp_pkt(thr_args->pool); + pkt = pack_icmp_pkt(thr_args->pool, pkt_ref); if (pkt == ODP_PACKET_INVALID) { /* Thread gives up as soon as it sees the pool empty. @@ -440,6 +536,7 @@ static int gen_send_thread(void *arg) args->appl.timeout--; } } + odp_packet_free(pkt_ref); return 0; }