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/*
* Copyright (C) 2014 Martin Willi
* Copyright (C) 2014 revosec AG
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <errno.h>
#include <sys/stat.h>
#include "command.h"
#include "swanctl.h"
/**
* Load a single certificate over vici
*/
static bool load_cert(vici_conn_t *conn, bool raw, char *dir,
char *type, chunk_t data)
{
vici_req_t *req;
vici_res_t *res;
bool ret = TRUE;
req = vici_begin("load-cert");
vici_add_key_valuef(req, "type", "%s", type);
vici_add_key_value(req, "data", data.ptr, data.len);
res = vici_submit(req, conn);
if (!res)
{
fprintf(stderr, "load-cert request failed: %s\n", strerror(errno));
return FALSE;
}
if (raw)
{
vici_dump(res, "load-cert reply", stdout);
}
else if (!streq(vici_find_str(res, "no", "success"), "yes"))
{
fprintf(stderr, "loading '%s' failed: %s\n",
dir, vici_find_str(res, "", "errmsg"));
ret = FALSE;
}
vici_free_res(res);
return ret;
}
/**
* Load certficiates from a directory
*/
static void load_certs(vici_conn_t *conn, bool raw, char *type, char *dir)
{
enumerator_t *enumerator;
struct stat st;
chunk_t *map;
char *path;
enumerator = enumerator_create_directory(dir);
if (enumerator)
{
while (enumerator->enumerate(enumerator, NULL, &path, &st))
{
if (S_ISREG(st.st_mode))
{
map = chunk_map(path, FALSE);
if (map)
{
load_cert(conn, raw, path, type, *map);
chunk_unmap(map);
}
else
{
fprintf(stderr, "mapping '%s' failed: %s, skipped\n",
path, strerror(errno));
}
}
}
enumerator->destroy(enumerator);
}
}
/**
* Clear all currently loaded credentials
*/
static bool clear_creds(vici_conn_t *conn, bool raw)
{
vici_res_t *res;
res = vici_submit(vici_begin("clear-creds"), conn);
if (!res)
{
fprintf(stderr, "clear-creds request failed: %s\n", strerror(errno));
return FALSE;
}
if (raw)
{
vici_dump(res, "clear-creds reply", stdout);
}
vici_free_res(res);
return TRUE;
}
static int load_creds(vici_conn_t *conn)
{
bool raw = FALSE, clear = FALSE;
char *arg;
while (TRUE)
{
switch (command_getopt(&arg))
{
case 'h':
return command_usage(NULL);
case 'c':
clear = TRUE;
continue;
case 'r':
raw = TRUE;
continue;
case EOF:
break;
default:
return command_usage("invalid --load-creds option");
}
break;
}
if (clear)
{
if (!clear_creds(conn, raw))
{
return ECONNREFUSED;
}
}
load_certs(conn, raw, "x509", SWANCTL_X509DIR);
load_certs(conn, raw, "x509ca", SWANCTL_X509CADIR);
load_certs(conn, raw, "x509aa", SWANCTL_X509AADIR);
load_certs(conn, raw, "x509crl", SWANCTL_X509CRLDIR);
load_certs(conn, raw, "x509ac", SWANCTL_X509ACDIR);
return 0;
}
/**
* Register the command.
*/
static void __attribute__ ((constructor))reg()
{
command_register((command_t) {
load_creds, 's', "load-creds", "(re-)load credentials",
{"[--raw]"},
{
{"help", 'h', 0, "show usage information"},
{"clear", 'c', 0, "clear previously loaded credentials"},
{"raw", 'r', 0, "dump raw response message"},
}
});
}
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