test01.c
dsl (Dmitry Salychev)
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	dsl
	Sun, Mar 29, 11:37 AM

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test01.c
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	/*
	* test01.c
	*
	* TCP connection test which sends a pattern of 0xA...0xF numbers sequentially
	* in 1024 byte blocks indefinitely. Server is supposed to verify received data
	* read from the TCP connection and terminate it in case of missed bytes.
	*
	* This test helps to identify problems with the TX path of the DPAA2 driver in
	* FreeBSD when generation of the checksums is offloaded to the DPAA2 hardware.
	*
	* See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292006#c31
	*
	* Based on G. Adam Stanislav work at
	* https://docs.freebsd.org/en/books/developers-handbook/sockets/
	*/
	#include <stdio.h>
	#include <string.h>
	#include <sys/types.h>
	#include <sys/socket.h>
	#include <netinet/in.h>
	#include <unistd.h>

	#define BLOCKSZ (128u)

	int main() {
	int s, bytes;
	struct sockaddr_in sa;
	uint8_t buffer[BLOCKSZ], sym;

	if ((s = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
	perror("socket");
	return 1;
	}

	memset(&sa, '\0', sizeof(sa));

	sa.sin_family = AF_INET;
	sa.sin_port = htons(5202);
	sa.sin_addr.s_addr = htonl((((((10 << 8) \| 100) << 8) \| 0) << 8) \| 2);
	if (connect(s, (struct sockaddr *)&sa, sizeof sa) < 0) {
	perror("connect");
	close(s);
	return 2;
	}

	sym = 0xAu;
	memset(&buffer, sym, BLOCKSZ);
	while (write(s, buffer, BLOCKSZ) == BLOCKSZ) {
	sym++;
	sym = (sym == 0x10u) ? 0xAu : sym;
	memset(&buffer, sym, BLOCKSZ);
	}

	close(s);
	return 0;
	}