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test01d.c
dsl (Dmitry Salychev)
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dsl
Sun, Mar 29, 11:36 AM
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test01d.c
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/*
* test01d.c
*
* TCP connection test server which accepts a pattern of 0xA...0xF numbers
* sequentially in 1024 byte blocks. Server is supposed to verify received data
* read from the TCP connection and terminate it when the pattern is violated
* (e.g. missed bytes, incorrect block sizes, etc.)
*
* 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 <time.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#define BACKLOG 4
#define BLOCKSZ (128u)
int main() {
int s, c, bytes, i;
socklen_t b;
struct sockaddr_in sa;
time_t t;
struct tm *tm;
uint8_t buffer, sym;
uint32_t block;
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);
if (INADDR_ANY)
sa.sin_addr.s_addr = htonl(INADDR_ANY);
if (bind(s, (struct sockaddr *)&sa, sizeof sa) < 0) {
perror("bind");
return 2;
}
switch (fork()) {
case -1:
perror("fork");
return 3;
default:
close(s);
return 0;
case 0:
break;
}
listen(s, BACKLOG);
b = sizeof sa;
if ((c = accept(s, (struct sockaddr *)&sa, &b)) < 0) {
perror("test01d accept");
return 4;
}
sym = 0xAu;
i = 0;
bytes = 0;
block = 0;
memset(&buffer, '\0', sizeof(buffer));
while ((bytes = read(c, &buffer, sizeof(buffer))) > 0) {
if (bytes != sizeof(buffer)) {
fprintf(stdout, "read bytes: %d != %lu\n",
bytes, sizeof(buffer));
return 6;
}
if (buffer != sym) {
fprintf(stdout, "wrong symbol: '0x%X' (expected '0x%X') "
"at %d block %d\n", buffer, sym, i, block);
return 7;
}
i++;
if (i > (BLOCKSZ - 1)) {
i = 0;
sym++;
sym = (sym == 0x10u) ? 0xAu : sym;
block++;
}
}
close(c);
return 0;
}

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