1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2002, 2004 Networks Associates Technology, Inc. 5 * All rights reserved. 6 * 7 * This software was developed for the FreeBSD Project by NAI Labs, the 8 * Security Research Division of Network Associates, Inc. under 9 * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA 10 * CHATS research program. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 #include <sys/param.h> 38 #include <sys/errno.h> 39 #include <sys/mount.h> 40 #include <sys/time.h> 41 #include <sys/sysctl.h> 42 43 #include <security/mac_bsdextended/mac_bsdextended.h> 44 45 #include <err.h> 46 #include <stdio.h> 47 #include <stdlib.h> 48 #include <string.h> 49 #include <ugidfw.h> 50 51 void add_rule(int argc, char *argv[]); 52 void list_rules(void); 53 void remove_rule(int argc, char *argv[]); 54 void set_rule(int argc, char *argv[]); 55 void usage(void); 56 57 void 58 usage(void) 59 { 60 61 fprintf(stderr, "usage: ugidfw add [subject [not] [uid uid] [gid gid]]" 62 " [object [not] [uid uid] \\\n"); 63 fprintf(stderr, " [gid gid]] mode arswxn\n"); 64 fprintf(stderr, " ugidfw list\n"); 65 fprintf(stderr, " ugidfw set rulenum [subject [not] [uid uid] [gid gid]]" 66 " [object [not] \\\n"); 67 fprintf(stderr, " [uid uid] [gid gid]] mode arswxn\n"); 68 fprintf(stderr, " ugidfw remove rulenum\n"); 69 70 exit(1); 71 } 72 73 void 74 add_rule(int argc, char *argv[]) 75 { 76 char errstr[BUFSIZ], charstr[BUFSIZ]; 77 struct mac_bsdextended_rule rule; 78 int error, rulenum; 79 80 error = bsde_parse_rule(argc, argv, &rule, BUFSIZ, errstr); 81 if (error) { 82 warnx("%s", errstr); 83 return; 84 } 85 86 error = bsde_add_rule(&rulenum, &rule, BUFSIZ, errstr); 87 if (error) { 88 warnx("%s", errstr); 89 return; 90 } 91 if (bsde_rule_to_string(&rule, charstr, BUFSIZ) == -1) 92 warnx("Added rule, but unable to print string."); 93 else 94 printf("%d %s\n", rulenum, charstr); 95 } 96 97 void 98 list_rules(void) 99 { 100 char errstr[BUFSIZ], charstr[BUFSIZ]; 101 struct mac_bsdextended_rule rule; 102 int error, i, rule_count, rule_slots; 103 104 rule_slots = bsde_get_rule_slots(BUFSIZ, errstr); 105 if (rule_slots == -1) { 106 warnx("unable to get rule slots; mac_bsdextended.ko " 107 "may not be loaded"); 108 errx(1, "bsde_get_rule_slots: %s", errstr); 109 } 110 111 rule_count = bsde_get_rule_count(BUFSIZ, errstr); 112 if (rule_count == -1) 113 errx(1, "bsde_get_rule_count: %s", errstr); 114 115 printf("%d slots, %d rules\n", rule_slots, rule_count); 116 117 for (i = 0; i < rule_slots; i++) { 118 error = bsde_get_rule(i, &rule, BUFSIZ, errstr); 119 switch (error) { 120 case -2: 121 continue; 122 case -1: 123 warnx("rule %d: %s", i, errstr); 124 continue; 125 case 0: 126 break; 127 } 128 129 if (bsde_rule_to_string(&rule, charstr, BUFSIZ) == -1) 130 warnx("unable to translate rule %d to string", i); 131 else 132 printf("%d %s\n", i, charstr); 133 } 134 } 135 136 void 137 set_rule(int argc, char *argv[]) 138 { 139 char errstr[BUFSIZ]; 140 struct mac_bsdextended_rule rule; 141 long value; 142 int error, rulenum; 143 char *endp; 144 145 if (argc < 1) 146 usage(); 147 148 value = strtol(argv[0], &endp, 10); 149 if (*endp != '\0') 150 usage(); 151 152 if ((long) value != (int) value || value < 0) 153 usage(); 154 155 rulenum = value; 156 157 error = bsde_parse_rule(argc - 1, argv + 1, &rule, BUFSIZ, errstr); 158 if (error) { 159 warnx("%s", errstr); 160 return; 161 } 162 163 error = bsde_set_rule(rulenum, &rule, BUFSIZ, errstr); 164 if (error) { 165 warnx("%s", errstr); 166 return; 167 } 168 } 169 170 void 171 remove_rule(int argc, char *argv[]) 172 { 173 char errstr[BUFSIZ]; 174 long value; 175 int error, rulenum; 176 char *endp; 177 178 if (argc != 1) 179 usage(); 180 181 value = strtol(argv[0], &endp, 10); 182 if (*endp != '\0') 183 usage(); 184 185 if ((long) value != (int) value || value < 0) 186 usage(); 187 188 rulenum = value; 189 190 error = bsde_delete_rule(rulenum, BUFSIZ, errstr); 191 if (error) 192 warnx("%s", errstr); 193 } 194 195 int 196 main(int argc, char *argv[]) 197 { 198 199 if (argc < 2) 200 usage(); 201 202 if (strcmp("add", argv[1]) == 0) { 203 add_rule(argc-2, argv+2); 204 } else if (strcmp("list", argv[1]) == 0) { 205 if (argc != 2) 206 usage(); 207 list_rules(); 208 } else if (strcmp("set", argv[1]) == 0) { 209 set_rule(argc-2, argv+2); 210 } else if (strcmp("remove", argv[1]) == 0) { 211 remove_rule(argc-2, argv+2); 212 } else 213 usage(); 214 215 return (0); 216 } 217