static void
identify_ns(int argc, char *argv[])
{
struct nvme_namespace_data nsdata;
char path[64];
int ch, fd, hexflag = 0, hexlength, nsid;
int verboseflag = 0;
while ((ch = getopt(argc, argv, "vx")) != -1) {
switch ((char)ch) {
case 'v':
verboseflag = 1;
break;
case 'x':
hexflag = 1;
break;
default:
identify_usage();
}
}
/* Check that a namespace was specified. */
if (optind >= argc)
identify_usage();
/*
* Check if the specified device node exists before continuing.
* This is a cleaner check for cases where the correct controller
* is specified, but an invalid namespace on that controller.
*/
open_dev(argv[optind], &fd, 1, 1);
close(fd);
/*
* We send IDENTIFY commands to the controller, not the namespace,
* since it is an admin cmd. The namespace ID will be specified in
* the IDENTIFY command itself. So parse the namespace's device node
* string to get the controller substring and namespace ID.
*/
parse_ns_str(argv[optind], path, &nsid);
open_dev(path, &fd, 1, 1);
read_namespace_data(fd, nsid, &nsdata);
close(fd);
if (hexflag == 1) {
if (verboseflag == 1)
hexlength = sizeof(struct nvme_namespace_data);
else
hexlength = offsetof(struct nvme_namespace_data,
reserved6);
print_hex(&nsdata, hexlength);
exit(0);
}
if (verboseflag == 1) {
fprintf(stderr, "-v not currently supported without -x\n");
identify_usage();
}
print_namespace(&nsdata);
exit(0);
}
static void
identify_ns(int argc, char *argv[])
{
struct nvme_namespace_data nsdata;
struct stat devstat;
char path[64];
char *nsloc;
int ch, fd, hexflag = 0, hexlength, nsid;
int verboseflag = 0;
while ((ch = getopt(argc, argv, "vx")) != -1) {
switch ((char)ch) {
case 'v':
verboseflag = 1;
break;
case 'x':
hexflag = 1;
break;
default:
usage();
}
}
/*
* Check if the specified device node exists before continuing.
* This is a cleaner check for cases where the correct controller
* is specified, but an invalid namespace on that controller.
*/
sprintf(path, "/dev/%s", argv[optind]);
if (stat(path, &devstat) < 0) {
printf("Invalid device node %s. errno=%d (%s)\n", path, errno,
strerror(errno));
exit(EX_IOERR);
}
nsloc = strstr(argv[optind], "ns");
if (nsloc == NULL) {
printf("Invalid namepsace %s.\n", argv[optind]);
exit(EX_IOERR);
}
/*
* Pull the namespace id from the string. +2 skips past the "ns" part
* of the string.
*/
nsid = strtol(nsloc + 2, NULL, 10);
if (nsid == 0 && errno != 0) {
printf("Invalid namespace ID %s.\n", argv[optind]);
exit(EX_IOERR);
}
/*
* We send IDENTIFY commands to the controller, not the namespace,
* since it is an admin cmd. So the path should only include the
* nvmeX part of the nvmeXnsY string.
*/
sprintf(path, "/dev/");
strncat(path, argv[optind], nsloc - argv[optind]);
if (stat(path, &devstat) < 0) {
printf("Invalid device node %s. errno=%d (%s)\n", path, errno,
strerror(errno));
exit(EX_IOERR);
}
fd = open(path, O_RDWR);
if (fd < 0) {
printf("Could not open %s. errno=%d (%s)\n", path, errno,
strerror(errno));
exit(EX_NOPERM);
}
read_namespace_data(fd, nsid, &nsdata);
if (hexflag == 1) {
if (verboseflag == 1)
hexlength = sizeof(struct nvme_namespace_data);
else
hexlength = offsetof(struct nvme_namespace_data,
reserved6);
print_namespace_hex(&nsdata, hexlength);
exit(EX_OK);
}
if (verboseflag == 1) {
printf("-v not currently supported without -x.\n");
usage();
}
print_namespace(&nsdata);
exit(EX_OK);
}
