5fff9558a4
Used by loader and veriexec Depends on libbearssl Reviewed by: emaste Sponsored by: Juniper Networks Differential Revision: D16335
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
/*-
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* Copyright (c) 2018, Juniper Networks, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/**
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* @file veta.c - add to trust anchors
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*
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*/
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#define NEED_BRSSL_H
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#include "libsecureboot-priv.h"
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#include <brssl.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#ifdef VE_OPENPGP_SUPPORT
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#include "openpgp/packet.h"
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#endif
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/**
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* @brief add trust anchors from a file
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*
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* The file might contain X.509 certs
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* or OpenPGP public key
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*/
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static size_t
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trust_file_add(const char *trust)
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{
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br_x509_certificate *xcs;
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size_t num;
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xcs = read_certificates(trust, &num);
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if (xcs) {
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num = ve_trust_anchors_add(xcs, num);
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}
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#ifdef VE_OPENPGP_SUPPORT
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else if (load_key_file(trust)) {
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num = 1;
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}
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#endif
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return (num);
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}
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/**
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* @brief add trust anchors from a directory
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*
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* Pass each file in directory to trust_file_add
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*/
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static size_t
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trust_dir_add(const char *trust)
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{
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char fbuf[MAXPATHLEN];
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DIR *dh;
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struct dirent *de;
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struct stat st;
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ssize_t sz;
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size_t num;
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if (!(dh = opendir(trust)))
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return (0);
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for (num = 0, de = readdir(dh); de; de = readdir(dh)) {
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if (de->d_name[0] == '.')
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continue;
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sz = snprintf(fbuf, sizeof(fbuf), "%s/%s", trust, de->d_name);
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if (sz >= (ssize_t)sizeof(fbuf))
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continue;
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if (stat(fbuf, &st) < 0 || S_ISDIR(st.st_mode))
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continue;
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num += trust_file_add(fbuf);
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}
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closedir(dh);
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return (num);
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}
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/**
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* @brief add trust anchors
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*/
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int
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ve_trust_add(const char *trust)
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{
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struct stat st;
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if (stat(trust, &st) < 0)
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return (-1);
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if (S_ISDIR(st.st_mode))
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return (trust_dir_add(trust));
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return (trust_file_add(trust));
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}
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