/*
* Copyright (c) 2016 Chris Johns <chrisj@rtems.org>. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*
* FTPD service. To use add to rc.conf:
*
* ftpd_enable="YES"
* ftp_options="-p 21 -C 4 -P 100 -I 300 -R / -L -A rw"
*
* The options defaults are show. The options are:
*
* -p port : Port.
* -C conns : Maximum connections.
* -P priority : FTP thread priority (RTEMS Classis API).
* -I secs : Idle timeout in seconds.
* -R path : Root path.
* -L : Logins using /etc/passwd
* -A <rw/rd/wr> : Access, rw=read/write, rd=read, wr=write.
*/
#include <errno.h>
#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#define __need_getopt_newlib
#include <getopt.h>
#include <rtems/ftpd.h>
#include <machine/rtems-bsd-rc-conf-services.h>
static int
ftpd_service(rtems_bsd_rc_conf* rc_conf)
{
struct rtems_ftpd_configuration config = {
.priority = 100, /* FTPD task priority */
.max_hook_filesize = 0, /* Maximum buffersize for hooks */
.port = 21, /* Well-known port */
.hooks = NULL, /* List of hooks */
.root = NULL, /* Root for FTPD or NULL for "/" */
.tasks_count = 4, /* Max. connections */
.idle = 5 * 60, /* Idle timeout in seconds or 0 for no (infinite) timeout */
.access = 0, /* Access: 0 - r/w, 1 - read-only, 2 - write-only,
* 3 - browse-only */
.login = NULL /* Login */
};
rtems_bsd_rc_conf_argc_argv* aa;
int r;
aa = rtems_bsd_rc_conf_argc_argv_create();
if (aa == NULL)
return -1;
r = rtems_bsd_rc_conf_find(rc_conf, "ftpd_enable", aa);
if (r == 0) {
rtems_status_code sc;
bool verbose = false;
if (aa->argc == 2 && strcasecmp("YES", aa->argv[1]) == 0) {
r = rtems_bsd_rc_conf_find(rc_conf, "ftpd_options", aa);
if (r == 0) {
struct getopt_data data;
char* end;
memset(&data, 0, sizeof(data));
while (true) {
int c;
c = getopt_r(aa->argc, aa->argv, "p:C:P:I:R:LA:v", &data);
if (c == -1)
break;
switch (c) {
case 'p':
config.port = strtoul(data.optarg, &end, 10);
if (config.port == 0 || *end != '\0') {
fprintf(stderr, "error: ftpd: invalid port\n");
config.port = 21;
}
break;
case 'C':
config.tasks_count = strtoul(data.optarg, &end, 10);
if (config.tasks_count == 0 || *end != '\0') {
fprintf(stderr, "error: ftpd: invalid port\n");
config.tasks_count = 4;
}
break;
case 'P':
config.priority = strtoul(data.optarg, &end, 10);
if (config.priority == 0 || *end != '\0') {
fprintf(stderr, "error: ftpd: invalid priority\n");
config.priority = 100;
}
break;
case 'I':
config.idle = strtoul(data.optarg, &end, 10);
if (config.tasks_count == 0 || *end != '\0') {
fprintf(stderr, "error: ftpd: invalid idle seconds\n");
config.idle = 5 * 60;
}
break;
case 'R':
config.root = strdup(data.optarg);
if (config.root == NULL) {
fprintf(stderr, "error: ftpd: no memory for root path\n");
}
break;
case 'L':
config.login = rtems_shell_login_check;
break;
case 'A':
if (strcasecmp("rw", data.optarg) == 0)
config.access = 0;
else if (strcasecmp("rd", data.optarg) == 0)
config.access = 1;
else if (strcasecmp("wr", data.optarg) == 0)
config.access = 2;
else
fprintf(stderr, "error: ftp: invalid access option\n");
break;
case 'v':
verbose = true;
break;
case '?':
default:
fprintf(stderr, "error: ftp: unknown option: %s\n", data.optarg);
break;
}
}
}
if (verbose) {
printf("ftpd: port:%lu conns:%lu pri:%lu idle:%lu root:%s login:%s access:%s\n",
config.port, config.tasks_count, config.priority, config.idle,
config.root == NULL ? "/" : config.root,
config.login == NULL ? "no" : "yes",
config.access == 0 ? "read/write" : config.access == 1 ? "read" : "write");
}
sc = rtems_ftpd_start(&config);
if (sc != RTEMS_SUCCESSFUL)
fprintf(stderr, "error: ftpd: %s\n", rtems_status_text(sc));
}
}
return 0;
}
void
rc_conf_ftpd_init(void* arg)
{
int r;
r = rtems_bsd_rc_conf_service_add("ftpd",
"after:network;",
ftpd_service);
if (r < 0)
fprintf(stderr, "error: ftpd service add failed: %s\n", strerror(errno));
}
