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/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2023 Oxide Computer Company
*/
/*
* A private utility to dump the raw spd information nvlist.
*/
#include <err.h>
#include <libnvpair.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <libjedec.h>
int
main(int argc, const char *argv[])
{
int fd;
struct stat st;
uint8_t buf[4096];
ssize_t ret;
spd_error_t serr;
if (argc != 2) {
errx(EXIT_FAILURE, "spd: file");
}
fd = open(argv[1], O_RDONLY);
if (fd < 0) {
err(EXIT_FAILURE, "failed to open %s", argv[1]);
}
if (fstat(fd, &st) != 0) {
err(EXIT_FAILURE, "failed to get stat info for %s", argv[1]);
}
if (st.st_size > sizeof (buf)) {
errx(EXIT_FAILURE, "spd data exceeds internal 0x%zx internal "
"buffer: 0x%lx", sizeof (buf), st.st_size);
}
ret = read(fd, buf, st.st_size);
if (ret < 0) {
err(EXIT_FAILURE, "failed to read %s", argv[1]);
} else if (ret != st.st_size) {
errx(EXIT_FAILURE, "failed to read %s in one go: got %ld "
"bytes, expected %ld", argv[1], ret, st.st_size);
}
nvlist_t *nvl = libjedec_spd(buf, st.st_size, &serr);
if (nvl == NULL) {
errx(EXIT_FAILURE, "failed to parse spd info: 0x%x\n", serr);
}
nvlist_print(stdout, nvl);
return (EXIT_SUCCESS);
}
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