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/*-
* Copyright (c) 2018, Juniper Networks, Inc.
*
* 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 COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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.
*/
#include <sys/cdefs.h>
/**
* @file veta.c - add to trust anchors
*
*/
#define NEED_BRSSL_H
#include "libsecureboot-priv.h"
#include <brssl.h>
#include <sys/stat.h>
#include <dirent.h>
#ifdef VE_OPENPGP_SUPPORT
#include "openpgp/packet.h"
#endif
/**
* @brief add trust anchors from a file
*
* The file might contain X.509 certs
* or OpenPGP public key
*/
static size_t
trust_file_add(const char *trust)
{
br_x509_certificate *xcs;
size_t num;
xcs = read_certificates(trust, &num);
if (xcs) {
num = ve_trust_anchors_add(xcs, num);
}
#ifdef VE_OPENPGP_SUPPORT
else if (load_key_file(trust)) {
num = 1;
}
#endif
return (num);
}
/**
* @brief add trust anchors from a directory
*
* Pass each file in directory to trust_file_add
*/
static size_t
trust_dir_add(const char *trust)
{
char fbuf[MAXPATHLEN];
DIR *dh;
struct dirent *de;
struct stat st;
ssize_t sz;
size_t num;
if (!(dh = opendir(trust)))
return (0);
for (num = 0, de = readdir(dh); de; de = readdir(dh)) {
if (de->d_name[0] == '.')
continue;
sz = snprintf(fbuf, sizeof(fbuf), "%s/%s", trust, de->d_name);
if (sz >= (ssize_t)sizeof(fbuf))
continue;
if (stat(fbuf, &st) < 0 || S_ISDIR(st.st_mode))
continue;
num += trust_file_add(fbuf);
}
closedir(dh);
return (num);
}
/**
* @brief add trust anchors
*/
int
ve_trust_add(const char *trust)
{
struct stat st;
if (stat(trust, &st) < 0)
return (-1);
if (S_ISDIR(st.st_mode))
return (trust_dir_add(trust));
return (trust_file_add(trust));
}
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