diff options
Diffstat (limited to 'usr.sbin/ugidfw/ugidfw.c')
| -rw-r--r-- | usr.sbin/ugidfw/ugidfw.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/usr.sbin/ugidfw/ugidfw.c b/usr.sbin/ugidfw/ugidfw.c new file mode 100644 index 0000000..977922a --- /dev/null +++ b/usr.sbin/ugidfw/ugidfw.c @@ -0,0 +1,214 @@ +/*- + * Copyright (c) 2002, 2004 Networks Associates Technology, Inc. + * All rights reserved. + * + * This software was developed for the FreeBSD Project by NAI Labs, the + * Security Research Division of Network Associates, Inc. under + * DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA + * CHATS research program. + * + * 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 AUTHOR 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 AUTHOR 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> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/errno.h> +#include <sys/mount.h> +#include <sys/time.h> +#include <sys/sysctl.h> + +#include <security/mac_bsdextended/mac_bsdextended.h> + +#include <err.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ugidfw.h> + +void add_rule(int argc, char *argv[]); +void list_rules(void); +void remove_rule(int argc, char *argv[]); +void set_rule(int argc, char *argv[]); +void usage(void); + +void +usage(void) +{ + + fprintf(stderr, "usage: ugidfw add [subject [not] [uid uid] [gid gid]]" + " [object [not] [uid uid] \\\n"); + fprintf(stderr, " [gid gid]] mode arswxn\n"); + fprintf(stderr, " ugidfw list\n"); + fprintf(stderr, " ugidfw set rulenum [subject [not] [uid uid] [gid gid]]" + " [object [not] \\\n"); + fprintf(stderr, " [uid uid] [gid gid]] mode arswxn\n"); + fprintf(stderr, " ugidfw remove rulenum\n"); + + exit(1); +} + +void +add_rule(int argc, char *argv[]) +{ + char errstr[BUFSIZ], charstr[BUFSIZ]; + struct mac_bsdextended_rule rule; + int error, rulenum; + + error = bsde_parse_rule(argc, argv, &rule, BUFSIZ, errstr); + if (error) { + warnx("%s", errstr); + return; + } + + error = bsde_add_rule(&rulenum, &rule, BUFSIZ, errstr); + if (error) { + warnx("%s", errstr); + return; + } + if (bsde_rule_to_string(&rule, charstr, BUFSIZ) == -1) + warnx("Added rule, but unable to print string."); + else + printf("%d %s\n", rulenum, charstr); +} + +void +list_rules(void) +{ + char errstr[BUFSIZ], charstr[BUFSIZ]; + struct mac_bsdextended_rule rule; + int error, i, rule_count, rule_slots; + + rule_slots = bsde_get_rule_slots(BUFSIZ, errstr); + if (rule_slots == -1) { + warnx("unable to get rule slots; mac_bsdextended.ko " + "may not be loaded"); + errx(1, "bsde_get_rule_slots: %s", errstr); + } + + rule_count = bsde_get_rule_count(BUFSIZ, errstr); + if (rule_count == -1) + errx(1, "bsde_get_rule_count: %s", errstr); + + printf("%d slots, %d rules\n", rule_slots, rule_count); + + for (i = 0; i < rule_slots; i++) { + error = bsde_get_rule(i, &rule, BUFSIZ, errstr); + switch (error) { + case -2: + continue; + case -1: + warnx("rule %d: %s", i, errstr); + continue; + case 0: + break; + } + + if (bsde_rule_to_string(&rule, charstr, BUFSIZ) == -1) + warnx("unable to translate rule %d to string", i); + else + printf("%d %s\n", i, charstr); + } +} + +void +set_rule(int argc, char *argv[]) +{ + char errstr[BUFSIZ]; + struct mac_bsdextended_rule rule; + long value; + int error, rulenum; + char *endp; + + if (argc < 1) + usage(); + + value = strtol(argv[0], &endp, 10); + if (*endp != '\0') + usage(); + + if ((long) value != (int) value || value < 0) + usage(); + + rulenum = value; + + error = bsde_parse_rule(argc - 1, argv + 1, &rule, BUFSIZ, errstr); + if (error) { + warnx("%s", errstr); + return; + } + + error = bsde_set_rule(rulenum, &rule, BUFSIZ, errstr); + if (error) { + warnx("%s", errstr); + return; + } +} + +void +remove_rule(int argc, char *argv[]) +{ + char errstr[BUFSIZ]; + long value; + int error, rulenum; + char *endp; + + if (argc != 1) + usage(); + + value = strtol(argv[0], &endp, 10); + if (*endp != '\0') + usage(); + + if ((long) value != (int) value || value < 0) + usage(); + + rulenum = value; + + error = bsde_delete_rule(rulenum, BUFSIZ, errstr); + if (error) + warnx("%s", errstr); +} + +int +main(int argc, char *argv[]) +{ + + if (argc < 2) + usage(); + + if (strcmp("add", argv[1]) == 0) { + add_rule(argc-2, argv+2); + } else if (strcmp("list", argv[1]) == 0) { + if (argc != 2) + usage(); + list_rules(); + } else if (strcmp("set", argv[1]) == 0) { + set_rule(argc-2, argv+2); + } else if (strcmp("remove", argv[1]) == 0) { + remove_rule(argc-2, argv+2); + } else + usage(); + + return (0); +} |
