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/*
* Author : Stephen Smalley, <sds@epoch.ncsc.mil>
*/
/*
* Updated: Trusted Computer Solutions, Inc. <dgoeddel@trustedcs.com>
*
* Support for enhanced MLS infrastructure.
*
* Updated: Karl MacMillan <kmacmillan@tresys.com>
*
* Added conditional policy language extensions
*
* Updated: James Morris <jmorris@intercode.com.au>
*
* Added IPv6 support.
*
* Copyright (C) 2004-2005 Trusted Computer Solutions, Inc.
* Copyright (C) 2003 - 2004 Tresys Technology, LLC
* Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 2.
*/
/* FLASK */
/*
* checkpolicy
*
* Load and check a policy configuration.
*
* A policy configuration is created in a text format,
* and then compiled into a binary format for use by
* the security server. By default, checkpolicy reads
* the text format. If '-b' is specified, then checkpolicy
* reads the binary format instead.
*
* If '-o output_file' is specified, then checkpolicy
* writes the binary format version of the configuration
* to the specified output file.
*
* If '-d' is specified, then checkpolicy permits the user
* to interactively test the security server functions with
* the loaded policy configuration.
*
* If '-c' is specified, then the supplied parameter is used to
* determine which policy version to use for generating binary
* policy. This is for compatibility with older kernels. If any
* booleans or conditional rules are thrown away a warning is printed.
*/
#include <getopt.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>
#include <sys/mman.h>
#include <sepol/policydb.h>
#include <sepol/services.h>
#include <sepol/conditional.h>
#include <sepol/flask.h>
#include "queue.h"
#include "checkpolicy.h"
extern char *optarg;
extern int optind;
static policydb_t policydb;
static sidtab_t sidtab;
extern policydb_t *policydbp;
extern queue_t id_queue;
extern unsigned int policydb_errors;
extern unsigned long policydb_lineno;
extern unsigned long source_lineno;
extern char source_file[];
extern unsigned int pass;
extern FILE *yyin;
extern int yyparse(void);
extern void yyrestart(FILE *);
char *txtfile = "policy.conf";
char *binfile = "policy";
unsigned int policyvers = POLICYDB_VERSION_MAX;
unsigned int mlspol = 0;
void usage(char *progname)
{
printf("usage: %s [-b] [-d] [-M] [-c policyvers (%d-%d)] [-o output_file] [input_file]\n",
progname, POLICYDB_VERSION_MIN, POLICYDB_VERSION_MAX);
exit(1);
}
static int print_sid(security_id_t sid,
context_struct_t * context __attribute__ ((unused)), void *data __attribute__ ((unused)))
{
security_context_t scontext;
size_t scontext_len;
int rc;
rc = sepol_sid_to_context(sid, &scontext, &scontext_len);
if (rc)
printf("sid %d -> error %d\n", sid, rc);
else {
printf("sid %d -> scontext %s\n", sid, scontext);
free(scontext);
}
return 0;
}
struct val_to_name {
unsigned int val;
char *name;
};
static int find_perm(hashtab_key_t key, hashtab_datum_t datum, void *p)
{
struct val_to_name *v = p;
perm_datum_t *perdatum;
perdatum = (perm_datum_t *) datum;
if (v->val == perdatum->value) {
v->name = key;
return 1;
}
return 0;
}
static int type_attr_remove(hashtab_key_t key __attribute__ ((unused)), hashtab_datum_t datum, void *p __attribute__ ((unused)))
{
type_datum_t *typdatum;
typdatum = (type_datum_t *) datum;
if (typdatum->isattr)
return 1;
return 0;
}
#ifdef EQUIVTYPES
static int insert_type_rule(avtab_key_t *k, avtab_datum_t *d,
struct avtab_node *type_rules)
{
struct avtab_node *p, *c, *n;
for (p = type_rules, c = type_rules->next; c; p = c, c = c->next) {
/*
* Find the insertion point, keeping the list
* ordered by source type, then target type, then
* target class.
*/
if (k->source_type < c->key.source_type)
break;
if (k->source_type == c->key.source_type &&
k->target_type < c->key.target_type)
break;
if (k->source_type == c->key.source_type &&
k->target_type == c->key.target_type &&
k->target_class < c->key.target_class)
break;
}
/* Insert the rule */
n = malloc(sizeof(struct avtab_node));
if (!n) {
fprintf(stderr, "out of memory\n");
exit(1);
}
n->key = *k;
n->datum = *d;
n->next = p->next;
p->next = n;
return 0;
}
static int create_type_rules(avtab_key_t *k, avtab_datum_t *d, void *args)
{
struct avtab_node *type_rules = args;
if (d->specified & AVTAB_ALLOWED) {
/*
* Insert the rule into the lists for both
* the source type and the target type.
*/
if (insert_type_rule(k, d, &type_rules[k->source_type-1])) return -1;
if (insert_type_rule(k, d, &type_rules[k->target_type-1])) return -1;
}
return 0;
}
static void free_type_rules(struct avtab_node *l)
{
struct avtab_node *tmp;
while (l) {
tmp = l;
l = l->next;
free(tmp);
}
}
static int identify_equiv_types(void)
{
struct avtab_node *type_rules, *l1, *l2;
int i, j;
/*
* Create a list of access vector rules for each type
* from the access vector table.
*/
type_rules = malloc(sizeof(struct avtab_node)*policydb.p_types.nprim);
if (!type_rules) {
fprintf(stderr, "out of memory\n");
exit(1);
}
memset(type_rules, 0, sizeof(struct avtab_node)*policydb.p_types.nprim);
if (avtab_map(&policydb.te_avtab, create_type_rules, type_rules))
exit(1);
/*
* Compare the type lists and identify equivalent types.
*/
for (i = 0; i < policydb.p_types.nprim - 1; i++) {
if (!type_rules[i].next)
continue;
for (j = i + 1; j < policydb.p_types.nprim; j++) {
for (l1 = type_rules[i].next, l2 = type_rules[j].next; l1 && l2;
l1 = l1->next, l2 = l2->next) {
if (l2->key.source_type == (j+1)) {
if (l1->key.source_type != (i+1))
break;
} else {
if (l1->key.source_type != l2->key.source_type)
break;
}
if (l2->key.target_type == (j+1)) {
if (l1->key.target_type != (i+1))
break;
} else {
if (l1->key.target_type != l2->key.target_type)
break;
}
if (l1->key.target_class != l2->key.target_class ||
l1->datum.allowed != l2->datum.allowed)
break;
}
if (l1 || l2)
continue;
free_type_rules(type_rules[j].next);
type_rules[j].next = NULL;
printf("Types %s and %s are equivalent.\n",
policydb.p_type_val_to_name[i],
policydb.p_type_val_to_name[j]);
}
free_type_rules(type_rules[i].next);
type_rules[i].next = NULL;
}
free(type_rules);
return 0;
}
#endif
static void cond_check_type_rules_list(cond_av_list_t *list)
{
cond_av_list_t *cur = list;
while (cur) {
if (cur->node->datum.specified & AVTAB_TYPE) {
if (avtab_search(&policydbp->te_avtab, &cur->node->key, AVTAB_TYPE)) {
fprintf(stderr, "conditional type rule for (%s, %s : %s) conflicts with entry in base policy; "
"conditional rule discarded.\n", policydbp->p_type_val_to_name[cur->node->key.source_type-1],
policydbp->p_type_val_to_name[cur->node->key.target_type-1],
policydbp->p_class_val_to_name[cur->node->key.target_class-1]);
cur->node->parse_context = (void*)0;
} else {
cur->node->parse_context = (void*)1;
}
} else {
cur->node->parse_context = (void*)1;
}
cur = cur->next;
}
}
/* check for duplicate type rules - this has to be done after all of
* the parsing is finished because the conditional and base type rules
* are collected in the same pass */
static void cond_check_type_rules(void)
{
cond_list_t *node;
for (node = policydbp->cond_list; node != NULL; node = node->next) {
cond_check_type_rules_list(node->true_list);
cond_check_type_rules_list(node->false_list);
}
}
extern char *av_to_string(uint32_t tclass, access_vector_t av);
void check_assertion_helper(unsigned int stype, unsigned int ttype, ebitmap_t *tclasses,
access_vector_t *avp, unsigned long line)
{
avtab_key_t avkey;
avtab_datum_t *avdatump;
unsigned int k;
for (k = ebitmap_startbit(tclasses); k < ebitmap_length(tclasses); k++) {
if (!ebitmap_get_bit(tclasses, k))
continue;
avkey.source_type = stype + 1;
avkey.target_type = ttype + 1;
avkey.target_class = k + 1;
avdatump = avtab_search(&policydb.te_avtab, &avkey, AVTAB_AV);
if (!avdatump)
continue;
if ((avdatump->specified & AVTAB_ALLOWED) &&
(avtab_allowed(avdatump) & avp[k])) {
fprintf(stderr, "assertion on line %ld violated by allow %s %s:%s {%s };\n", line, policydb.p_type_val_to_name[stype], policydb.p_type_val_to_name[ttype], policydb.p_class_val_to_name[k],
av_to_string(k+1,
avtab_allowed(avdatump) & avp[k]));
policydb_errors++;
}
}
}
void check_assertions(void)
{
te_assert_t *a, *tmp;
unsigned int i, j;
a = te_assertions;
while (a) {
for (i = ebitmap_startbit(&a->stypes); i < ebitmap_length(&a->stypes); i++) {
if (!ebitmap_get_bit(&a->stypes, i))
continue;
if (a->self) {
check_assertion_helper(i, i, &a->tclasses, a->avp, a->line);
}
for (j = ebitmap_startbit(&a->ttypes); j < ebitmap_length(&a->ttypes); j++) {
if (!ebitmap_get_bit(&a->ttypes, j))
continue;
check_assertion_helper(i, j, &a->tclasses, a->avp, a->line);
}
}
tmp = a;
a = a->next;
ebitmap_destroy(&tmp->stypes);
ebitmap_destroy(&tmp->ttypes);
ebitmap_destroy(&tmp->tclasses);
free(tmp->avp);
free(tmp);
}
}
int display_bools()
{
int i;
for (i = 0; i < policydbp->p_bools.nprim; i++) {
printf("%s : %d\n", policydbp->p_bool_val_to_name[i],
policydbp->bool_val_to_struct[i]->state);
}
return 0;
}
void display_expr(cond_expr_t *exp)
{
cond_expr_t *cur;
for (cur = exp; cur != NULL; cur = cur->next) {
switch (cur->expr_type) {
case COND_BOOL:
printf("%s ", policydbp->p_bool_val_to_name[cur->bool - 1]);
break;
case COND_NOT:
printf("! ");
break;
case COND_OR:
printf("|| ");
break;
case COND_AND:
printf("&& ");
break;
case COND_XOR:
printf("^ ");
break;
case COND_EQ:
printf("== ");
break;
case COND_NEQ:
printf("!= ");
break;
default:
printf("error!");
break;
}
}
}
int display_cond_expressions()
{
cond_node_t *cur;
for (cur = policydbp->cond_list; cur != NULL; cur = cur->next) {
printf("expression: ");
display_expr(cur->expr);
printf("current state: %d\n", cur->cur_state);
}
return 0;
}
int change_bool(char *name, int state)
{
cond_bool_datum_t *bool;
bool = hashtab_search(policydbp->p_bools.table, name);
if (bool == NULL) {
printf("Could not find bool %s\n", name);
return -1;
}
bool->state = state;
evaluate_conds(policydbp);
return 0;
}
int main(int argc, char **argv)
{
security_class_t tclass;
security_id_t ssid, tsid, *sids;
security_context_t scontext;
struct av_decision avd;
class_datum_t *cladatum;
char ans[80 + 1], *file = txtfile, *outfile = NULL, *path, *fstype;
size_t scontext_len, pathlen;
unsigned int i;
unsigned int protocol, port;
unsigned int binary = 0, debug = 0;
struct val_to_name v;
int ret, ch, fd;
unsigned int nel;
struct stat sb;
void *map;
FILE *outfp = NULL;
char *name;
int state;
int show_version = 0;
struct policy_file pf;
while ((ch = getopt(argc, argv, "o:dbMVc:")) != EOF) {
switch (ch) {
case 'o':
outfile = optarg;
break;
case 'b':
binary = 1;
file = binfile;
break;
case 'd':
debug = 1;
break;
case 'V':
show_version = 1;
break;
case 'M':
mlspol = 1;
break;
case 'c': {
long int n = strtol(optarg, NULL, 10);
if (errno) {
fprintf(stderr, "Invalid policyvers specified: %s\n", optarg);
usage(argv[0]);
exit(1);
}
if (n < POLICYDB_VERSION_MIN || n > POLICYDB_VERSION_MAX) {
fprintf(stderr, "policyvers value %ld not in range %d-%d\n",
n, POLICYDB_VERSION_MIN, POLICYDB_VERSION_MAX);
usage(argv[0]);
exit(1);
}
if (policyvers != n)
policyvers = n;
break;
}
default:
usage(argv[0]);
}
}
if (show_version) {
printf("%d (compatibility range %d-%d)\n", policyvers, POLICYDB_VERSION_MAX, POLICYDB_VERSION_MIN);
exit(0);
}
if (optind != argc) {
file = argv[optind++];
if (optind != argc)
usage(argv[0]);
}
printf("%s: loading policy configuration from %s\n", argv[0],
file);
/* Set policydb and sidtab used by libsepol service functions
to my structures, so that I can directly populate and
manipulate them. */
sepol_set_policydb(&policydb);
sepol_set_sidtab(&sidtab);
if (binary) {
fd = open(file, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "Can't open '%s': %s\n",
file, strerror(errno));
exit(1);
}
if (fstat(fd, &sb) < 0) {
fprintf(stderr, "Can't stat '%s': %s\n",
file, strerror(errno));
exit(1);
}
map = mmap(NULL, sb.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED) {
fprintf(stderr, "Can't map '%s': %s\n",
file, strerror(errno));
exit(1);
}
pf.type = PF_USE_MEMORY;
pf.data = map;
pf.len = sb.st_size;
ret = policydb_read(&policydb, &pf, 1);
if (ret) {
fprintf(stderr, "%s: error(s) encountered while parsing configuration\n", argv[0]);
exit(1);
}
policydbp = &policydb;
/* Check Policy Consistency */
if (sepol_mls_enabled()) {
if (!mlspol) {
fprintf(stderr,"%s: MLS policy, but non-MLS"
" is specified\n", argv[0]);
exit(1);
}
} else {
if (mlspol) {
fprintf(stderr,"%s: non-MLS policy, but MLS"
" is specified\n", argv[0]);
exit(1);
}
}
} else {
yyin = fopen(file, "r");
if (!yyin) {
fprintf(stderr, "%s: unable to open %s\n", argv[0],
file);
exit(1);
}
if (policydb_init(&policydb))
exit(1);
/* Let sepol know if we are dealing with MLS support */
sepol_set_mls(mlspol);
id_queue = queue_create();
if (!id_queue) {
fprintf(stderr, "%s: out of memory\n", argv[0]);
exit(1);
}
policydbp = &policydb;
policydb_errors = 0;
pass = 1;
if (yyparse() || policydb_errors) {
fprintf(stderr, "%s: error(s) encountered while parsing configuration\n", argv[0]);
exit(1);
}
rewind(yyin);
policydb_lineno = 1;
source_file[0] = '\0';
source_lineno = 1;
yyrestart(yyin);
pass = 2;
if (yyparse() || policydb_errors) {
fprintf(stderr, "%s: error(s) encountered while parsing configuration\n", argv[0]);
exit(1);
}
queue_destroy(id_queue);
cond_check_type_rules();
cond_optimize_lists(policydb.cond_list);
check_assertions();
if (policydb_errors)
exit(1);
if (policyvers >= POLICYDB_VERSION_NLCLASS &&
policydb.p_classes.nprim < SECCLASS_NETLINK_DNRT_SOCKET) {
fprintf(stderr, "%s: policy lacks new netlink classes, unable to generate policy version %d\n", argv[0], policyvers);
exit(1);
}
/* remove type attributes */
hashtab_map_remove_on_error(policydb.p_types.table,
type_attr_remove, 0, 0);
fclose(yyin);
}
if (policydb_load_isids(&policydb, &sidtab))
exit(1);
printf("%s: policy configuration loaded\n", argv[0]);
if (outfile) {
printf("%s: writing binary representation (version %d) to %s\n",
argv[0], policyvers, outfile);
outfp = fopen(outfile, "w");
if (!outfp) {
perror(outfile);
exit(1);
}
if (sepol_set_policyvers(policyvers)) {
fprintf(stderr,"%s: incompatible policy (version %d) "
"for writing to %s\n", argv[0],
policyvers, outfile);
exit(1);
}
pf.type = PF_USE_STDIO;
pf.fp = outfp;
ret = policydb_write(&policydb, &pf);
if (ret) {
fprintf(stderr, "%s: error writing %s\n",
argv[0], outfile);
exit(1);
}
fclose(outfp);
}
if (!debug)
exit(0);
menu:
printf("\nSelect an option:\n");
printf("0) Call compute_access_vector\n");
printf("1) Call sid_to_context\n");
printf("2) Call context_to_sid\n");
printf("3) Call transition_sid\n");
printf("4) Call member_sid\n");
printf("5) Call change_sid\n");
printf("6) Call list_sids\n");
printf("7) Call load_policy\n");
printf("8) Call fs_sid\n");
printf("9) Call port_sid\n");
printf("a) Call netif_sid\n");
printf("b) Call node_sid\n");
printf("c) Call fs_use\n");
printf("d) Call genfs_sid\n");
printf("e) Call get_user_sids\n");
printf("f) display conditional bools\n");
printf("g) display conditional expressions\n");
printf("h) change a boolean value\n");
#ifdef EQUIVTYPES
printf("z) Show equivalent types\n");
#endif
printf("m) Show menu again\n");
printf("q) Exit\n");
while (1) {
printf("\nChoose: ");
fgets(ans, sizeof(ans), stdin);
switch (ans[0]) {
case '0':
printf("source sid? ");
fgets(ans, sizeof(ans), stdin);
ssid = atoi(ans);
printf("target sid? ");
fgets(ans, sizeof(ans), stdin);
tsid = atoi(ans);
printf("target class? ");
fgets(ans, sizeof(ans), stdin);
if (isdigit(ans[0])) {
tclass = atoi(ans);
if (!tclass || tclass > policydb.p_classes.nprim) {
printf("\nNo such class.\n");
break;
}
cladatum = policydb.class_val_to_struct[tclass - 1];
} else {
ans[strlen(ans) - 1] = 0;
cladatum = (class_datum_t *) hashtab_search(policydb.p_classes.table,
ans);
if (!cladatum) {
printf("\nNo such class\n");
break;
}
tclass = cladatum->value;
}
if (!cladatum->comdatum && !cladatum->permissions.nprim) {
printf("\nNo access vector definition for that class\n");
break;
}
ret = sepol_compute_av(ssid, tsid, tclass, 0,
&avd);
switch (ret) {
case 0:
printf("\nallowed {");
for (i = 1; i <= sizeof(avd.allowed) * 8; i++) {
if (avd.allowed & (1 << (i - 1))) {
v.val = i;
ret = hashtab_map(cladatum->permissions.table,
find_perm, &v);
if (!ret && cladatum->comdatum) {
ret = hashtab_map(cladatum->comdatum->permissions.table,
find_perm, &v);
}
if (ret)
printf(" %s", v.name);
}
}
printf(" }\n");
break;
case -EINVAL:
printf("\ninvalid sid\n");
break;
default:
printf("return code 0x%x\n", ret);
}
break;
case '1':
printf("sid? ");
fgets(ans, sizeof(ans), stdin);
ssid = atoi(ans);
ret = sepol_sid_to_context(ssid,
&scontext, &scontext_len);
switch (ret) {
case 0:
printf("\nscontext %s\n", scontext);
free(scontext);
break;
case -EINVAL:
printf("\ninvalid sid\n");
break;
case -ENOMEM:
printf("\nout of memory\n");
break;
default:
printf("return code 0x%x\n", ret);
}
break;
case '2':
printf("scontext? ");
fgets(ans, sizeof(ans), stdin);
scontext_len = strlen(ans);
ans[scontext_len - 1] = 0;
ret = sepol_context_to_sid(ans, scontext_len,
&ssid);
switch (ret) {
case 0:
printf("\nsid %d\n", ssid);
break;
case -EINVAL:
printf("\ninvalid context\n");
break;
case -ENOMEM:
printf("\nout of memory\n");
break;
default:
printf("return code 0x%x\n", ret);
}
break;
case '3':
case '4':
case '5':
ch = ans[0];
printf("source sid? ");
fgets(ans, sizeof(ans), stdin);
ssid = atoi(ans);
printf("target sid? ");
fgets(ans, sizeof(ans), stdin);
tsid = atoi(ans);
printf("object class? ");
fgets(ans, sizeof(ans), stdin);
if (isdigit(ans[0])) {
tclass = atoi(ans);
if (!tclass || tclass > policydb.p_classes.nprim) {
printf("\nNo such class.\n");
break;
}
} else {
ans[strlen(ans) - 1] = 0;
cladatum = (class_datum_t *) hashtab_search(policydb.p_classes.table,
ans);
if (!cladatum) {
printf("\nNo such class\n");
break;
}
tclass = cladatum->value;
}
if (ch == '3')
ret = sepol_transition_sid(ssid, tsid, tclass, &ssid);
else if (ch == '4')
ret = sepol_member_sid(ssid, tsid, tclass, &ssid);
else
ret = sepol_change_sid(ssid, tsid, tclass, &ssid);
switch (ret) {
case 0:
printf("\nsid %d\n", ssid);
break;
case -EINVAL:
printf("\ninvalid sid\n");
break;
case -ENOMEM:
printf("\nout of memory\n");
break;
default:
printf("return code 0x%x\n", ret);
}
break;
case '6':
sepol_sidtab_map(&sidtab, print_sid, 0);
break;
case '7':
printf("pathname? ");
fgets(ans, sizeof(ans), stdin);
pathlen = strlen(ans);
ans[pathlen - 1] = 0;
printf("%s: loading policy configuration from %s\n", argv[0], ans);
fd = open(ans, O_RDONLY);
if (fd < 0) {
fprintf(stderr, "Can't open '%s': %s\n",
ans, strerror(errno));
break;
}
if (fstat(fd, &sb) < 0) {
fprintf(stderr, "Can't stat '%s': %s\n",
ans, strerror(errno));
break;
}
map = mmap(NULL, sb.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
if (map == MAP_FAILED) {
fprintf(stderr, "Can't map '%s': %s\n",
ans, strerror(errno));
break;
}
ret = sepol_load_policy(map,sb.st_size);
switch (ret) {
case 0:
printf("\nsuccess\n");
break;
case -EINVAL:
printf("\ninvalid policy\n");
break;
case -ENOMEM:
printf("\nout of memory\n");
break;
default:
printf("return code 0x%x\n", ret);
}
break;
case '8':
printf("fs kdevname? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
sepol_fs_sid(ans, &ssid, &tsid);
printf("fs_sid %d default_file_sid %d\n",
ssid, tsid);
break;
case '9':
printf("protocol? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
if (!strcmp(ans, "tcp") || !strcmp(ans, "TCP"))
protocol = IPPROTO_TCP;
else if (!strcmp(ans, "udp") || !strcmp(ans, "UDP"))
protocol = IPPROTO_UDP;
else {
printf("unknown protocol\n");
break;
}
printf("port? ");
fgets(ans, sizeof(ans), stdin);
port = atoi(ans);
sepol_port_sid(0, 0, protocol, port, &ssid);
printf("sid %d\n", ssid);
break;
case 'a':
printf("netif name? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
sepol_netif_sid(ans, &ssid, &tsid);
printf("if_sid %d default_msg_sid %d\n",
ssid, tsid);
break;
case 'b': {
char *p;
int family, len;
struct in_addr addr4;
struct in6_addr addr6;
printf("protocol family? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
if (!strcasecmp(ans, "ipv4"))
family = AF_INET;
else if (!strcasecmp(ans, "ipv6"))
family = AF_INET6;
else {
printf("unknown protocol family\n");
break;
}
printf("node address? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
if (family == AF_INET) {
p = (char *)&addr4;
len = sizeof(addr4);
} else {
p = (char *)&addr6;
len = sizeof(addr6);
}
if (inet_pton(family, ans, p) < 1) {
printf("error parsing address\n");
break;
}
sepol_node_sid(family, p, len, &ssid);
printf("sid %d\n", ssid);
break;
}
case 'c':
printf("fstype? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
sepol_fs_use(ans, &ret, &ssid);
switch (ret) {
case SECURITY_FS_USE_XATTR:
printf("use xattr\n");
break;
case SECURITY_FS_USE_TRANS:
printf("use transition SIDs\n");
break;
case SECURITY_FS_USE_TASK:
printf("use task SIDs\n");
break;
case SECURITY_FS_USE_GENFS:
printf("use genfs\n");
break;
case SECURITY_FS_USE_NONE:
printf("no labeling support\n");
break;
}
printf("sid %d\n", ssid);
break;
case 'd':
printf("fstype? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
fstype = strdup(ans);
printf("path? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
path = strdup(ans);
printf("object class? ");
fgets(ans, sizeof(ans), stdin);
if (isdigit(ans[0])) {
tclass = atoi(ans);
if (!tclass || tclass > policydb.p_classes.nprim) {
printf("\nNo such class.\n");
break;
}
} else {
ans[strlen(ans) - 1] = 0;
cladatum = (class_datum_t *) hashtab_search(policydb.p_classes.table,
ans);
if (!cladatum) {
printf("\nNo such class\n");
break;
}
tclass = cladatum->value;
}
sepol_genfs_sid(fstype, path, tclass, &ssid);
printf("sid %d\n", ssid);
free(fstype);
free(path);
break;
case 'e':
printf("from SID? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
ssid = atoi(ans);
printf("username? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
ret = sepol_get_user_sids(ssid, ans, &sids, &nel);
switch (ret) {
case 0:
if (!nel)
printf("\nnone\n");
for (i = 0; i < nel; i++)
print_sid(sids[i],NULL,NULL);
free(sids);
break;
case -ENOMEM:
printf("\nout of memory\n");
break;
case -EINVAL:
printf("\ninvalid argument\n");
break;
default:
printf("\nerror\n");
break;
}
break;
case 'f':
display_bools();
break;
case 'g':
display_cond_expressions();
break;
case 'h':
printf("name? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
name = malloc((strlen(ans) + 1) * sizeof(char));
if (name == NULL) {
fprintf(stderr, "couldn't malloc string.\n");
break;
}
strcpy(name, ans);
printf("state? ");
fgets(ans, sizeof(ans), stdin);
ans[strlen(ans) - 1] = 0;
if (atoi(ans))
state = 1;
else
state = 0;
change_bool(name, state);
free(name);
break;
#ifdef EQUIVTYPES
case 'z':
identify_equiv_types();
break;
#endif
case 'm':
goto menu;
case 'q':
exit(0);
break;
default:
printf("\nUnknown option %s.\n", ans);
}
}
return 0;
}
/* FLASK */
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