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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2012, Joyent, Inc. All rights reserved.
*/
/*
* This is a simple test program to exercise the hyprlofs ioctls. This is
* not designed as a full featured CLI and only does minimal error checking
* and reporting.
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <libgen.h>
#include <strings.h>
#include <sys/errno.h>
#include <sys/fs/hyprlofs.h>
extern int errno;
char *usage = "usage: <fs path> add [<file name> <alias>]+\n"
" <fs path> addl [<file name>]+\n"
" <fs path> rm [<alias>]+\n"
" <fs path> clear"
" <fs path> get";
typedef enum {
CMD_ADD,
CMD_RM,
CMD_CLR,
CMD_ADDL,
CMD_GET
} cmd_t;
static int
get_entries(int fd)
{
int err;
int i;
hyprlofs_curr_entries_t e;
hyprlofs_curr_entry_t *ep;
e.hce_cnt = 0;
e.hce_entries = NULL;
err = ioctl(fd, HYPRLOFS_GET_ENTRIES, &e);
if (err != 0 && errno != E2BIG) {
perror("ioctl");
return (1);
}
if (err == 0) {
(void) printf("success, but no entries\n");
return (0);
}
/*
* E2BIG is what we expect when there are existing mappings
* since the current cnt is still returned in that case.
*/
(void) printf("cnt: %d\n", e.hce_cnt);
/* alloc array and call again, then print array */
if ((ep = (hyprlofs_curr_entry_t *)
malloc(sizeof (hyprlofs_curr_entry_t) * e.hce_cnt)) == NULL) {
(void) fprintf(stderr, "out of memory\n");
exit(1);
}
e.hce_entries = ep;
errno = 0;
if (ioctl(fd, HYPRLOFS_GET_ENTRIES, &e) != 0) {
/*
* Not handling an increase here. We would need to free and
* start over to do that, but ok for a test program.
*/
perror("ioctl");
free(ep);
return (1);
}
for (i = 0; i < e.hce_cnt; i++)
(void) printf("%s %s\n", ep[i].hce_path, ep[i].hce_name);
free(ep);
return (0);
}
int
main(int argc, char **argv)
{
int i, ap;
cmd_t cmd;
int cnt = 0;
int fd;
int rv = 0;
hyprlofs_entry_t *e = NULL;
hyprlofs_entries_t ents;
if (argc < 3) {
(void) fprintf(stderr, "%s\n", usage);
exit(1);
}
if ((fd = open(argv[1], O_RDONLY)) < 0) {
perror("can't open hyprlofs mount");
exit(1);
}
if (strcmp(argv[2], "add") == 0) {
cmd = CMD_ADD;
} else if (strcmp(argv[2], "rm") == 0) {
cmd = CMD_RM;
} else if (strcmp(argv[2], "clear") == 0) {
cmd = CMD_CLR;
} else if (strcmp(argv[2], "addl") == 0) {
cmd = CMD_ADDL;
} else if (strcmp(argv[2], "get") == 0) {
cmd = CMD_GET;
} else {
(void) fprintf(stderr, "%s\n", usage);
exit(1);
}
/* Count up the number of parameters. The arg format varies w/ cmd */
switch (cmd) {
case CMD_ADD:
for (i = 3; i < argc; i++) {
/* argv[i] is the file path */
/* The next arg is the alias */
if (++i >= argc) {
(void) fprintf(stderr, "missing alias for %s\n",
argv[i - 1]);
exit(1);
}
cnt++;
}
break;
case CMD_ADDL:
cnt = argc - 3;
break;
case CMD_RM:
cnt = argc - 3;
break;
case CMD_CLR: /*FALLTHRU*/
case CMD_GET:
if (argc > 3) {
(void) fprintf(stderr, "%s\n", usage);
exit(1);
}
break;
}
if (cnt > 0) {
if ((e = (hyprlofs_entry_t *)malloc(sizeof (hyprlofs_entry_t) *
cnt)) == NULL) {
(void) fprintf(stderr, "out of memory\n");
exit(1);
}
}
/*
* Format up the args.
* We only setup the path member for the add cmd.
* We won't run this loop for the clear cmd.
* The addl command is special since we use basename to get the alias.
*/
for (i = 0, ap = 3; i < cnt; i++, ap++) {
if (cmd == CMD_ADDL) {
e[i].hle_path = argv[ap];
e[i].hle_plen = strlen(e[i].hle_path);
e[i].hle_name = basename(argv[ap]);
e[i].hle_nlen = strlen(e[i].hle_name);
continue;
}
if (cmd == CMD_ADD) {
e[i].hle_path = argv[ap++];
e[i].hle_plen = strlen(e[i].hle_path);
}
e[i].hle_name = argv[ap];
e[i].hle_nlen = strlen(e[i].hle_name);
}
ents.hle_entries = e;
ents.hle_len = cnt;
switch (cmd) {
case CMD_ADD: /*FALLTHRU*/
case CMD_ADDL:
if (ioctl(fd, HYPRLOFS_ADD_ENTRIES, &ents) < 0) {
perror("ioctl");
rv = 1;
}
break;
case CMD_RM:
if (ioctl(fd, HYPRLOFS_RM_ENTRIES, &ents) < 0) {
perror("ioctl");
rv = 1;
}
break;
case CMD_CLR:
if (ioctl(fd, HYPRLOFS_RM_ALL) < 0) {
perror("ioctl");
rv = 1;
}
break;
case CMD_GET:
rv = get_entries(fd);
break;
}
(void) close(fd);
if (cnt > 0)
free(e);
return (rv);
}
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