1 /*- 2 * Copyright (c) 2018, Juniper Networks, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 14 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 16 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 17 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 19 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 #include <sys/cdefs.h> 26 __FBSDID("$FreeBSD$"); 27 28 /** 29 * @file veta.c - add to trust anchors 30 * 31 */ 32 33 #define NEED_BRSSL_H 34 #include "libsecureboot-priv.h" 35 #include <brssl.h> 36 #include <sys/stat.h> 37 #include <dirent.h> 38 39 #ifdef VE_OPENPGP_SUPPORT 40 #include "openpgp/packet.h" 41 #endif 42 43 /** 44 * @brief add trust anchors from a file 45 * 46 * The file might contain X.509 certs 47 * or OpenPGP public key 48 */ 49 static size_t 50 trust_file_add(const char *trust) 51 { 52 br_x509_certificate *xcs; 53 size_t num; 54 55 xcs = read_certificates(trust, &num); 56 if (xcs) { 57 num = ve_trust_anchors_add(xcs, num); 58 } 59 #ifdef VE_OPENPGP_SUPPORT 60 else if (load_key_file(trust)) { 61 num = 1; 62 } 63 #endif 64 return (num); 65 } 66 67 /** 68 * @brief add trust anchors from a directory 69 * 70 * Pass each file in directory to trust_file_add 71 */ 72 static size_t 73 trust_dir_add(const char *trust) 74 { 75 char fbuf[MAXPATHLEN]; 76 DIR *dh; 77 struct dirent *de; 78 struct stat st; 79 ssize_t sz; 80 size_t num; 81 82 if (!(dh = opendir(trust))) 83 return (0); 84 for (num = 0, de = readdir(dh); de; de = readdir(dh)) { 85 if (de->d_name[0] == '.') 86 continue; 87 sz = snprintf(fbuf, sizeof(fbuf), "%s/%s", trust, de->d_name); 88 if (sz >= (ssize_t)sizeof(fbuf)) 89 continue; 90 if (stat(fbuf, &st) < 0 || S_ISDIR(st.st_mode)) 91 continue; 92 num += trust_file_add(fbuf); 93 } 94 closedir(dh); 95 return (num); 96 } 97 98 /** 99 * @brief add trust anchors 100 */ 101 int 102 ve_trust_add(const char *trust) 103 { 104 struct stat st; 105 106 if (stat(trust, &st) < 0) 107 return (-1); 108 if (S_ISDIR(st.st_mode)) 109 return (trust_dir_add(trust)); 110 return (trust_file_add(trust)); 111 } 112