forked from MarcoBuster/Magisk
Cleanup and separate submodule
This commit is contained in:
topjohnwu
parent
66b6098d32
commit
937b9009e0
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@ -1,3 +1,6 @@
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[submodule "selinux"]
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path = selinux
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url = https://github.com/topjohnwu/selinux
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[submodule "jni/sepolicy-inject"]
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path = jni/sepolicy-inject
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url = https://github.com/topjohnwu/sepolicy-inject
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@ -18,7 +18,7 @@ LOCAL_MODULE_TAGS := optional
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LOCAL_FORCE_STATIC_EXECUTABLE := true
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LOCAL_LDFLAGS := -static
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LOCAL_STATIC_LIBRARIES := libc libcutils libsepol
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LOCAL_SRC_FILES := sepolicy-inject.c
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LOCAL_SRC_FILES := sepolicy-inject/sepolicy-inject.c
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LOCAL_C_INCLUDES := selinux/libsepol/include/
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LOCAL_CFLAGS += -std=gnu11
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include $(BUILD_EXECUTABLE)
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@ -0,0 +1 @@
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Subproject commit b56a757f2e3ad7c3930121d0c355d24fcd6ee53e
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@ -1,748 +0,0 @@
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/*
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* This was derived from public domain works with updates to
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* work with more modern SELinux libraries.
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*
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* It is released into the public domain.
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*
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*/
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#include <getopt.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <sepol/debug.h>
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#include <sepol/policydb/policydb.h>
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#include <sepol/policydb/expand.h>
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#include <sepol/policydb/link.h>
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#include <sepol/policydb/services.h>
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#include <sepol/policydb/avrule_block.h>
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#include <sepol/policydb/conditional.h>
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#include <sepol/policydb/constraint.h>
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void usage(char *arg0) {
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fprintf(stderr, "%s -s <source type> -t <target type> -c <class> -p <perm_list> -P <policy file>\n", arg0);
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fprintf(stderr, "\tInject a rule\n\n");
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fprintf(stderr, "%s -s <source type> -a <type_attribute> -P <policy file>\n", arg0);
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fprintf(stderr, "\tAdd a type_attribute to a domain\n\n");
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fprintf(stderr, "%s -Z <source type> -P <policy file>\n", arg0);
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fprintf(stderr, "\tInject a permissive domain\n\n");
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fprintf(stderr, "%s -z <source type> -P <policy file>\n", arg0);
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fprintf(stderr, "\tInject a non-permissive domain\n\n");
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fprintf(stderr, "%s -e -s <source type> -P <policy file>\n", arg0);
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fprintf(stderr, "\tCheck if a SELinux type exists\n\n");
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fprintf(stderr, "%s -e -c <class> -P <policy file>\n", arg0);
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fprintf(stderr, "\tCheck if a SELinux class exists\n\n");
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fprintf(stderr, "All options can add -o <output file> to output to another file\n");
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exit(1);
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}
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void *cmalloc(size_t s) {
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void *t = malloc(s);
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if (t == NULL) {
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fprintf(stderr, "Out of memory\n");
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exit(1);
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}
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return t;
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}
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int get_attr(char *type, int value, policydb_t *policy) {
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type_datum_t *attr = hashtab_search(policy->p_types.table, type);
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if (!attr)
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exit(1);
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if (attr->flavor != TYPE_ATTRIB)
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exit(1);
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return !! ebitmap_get_bit(&policy->attr_type_map[attr->s.value-1], value-1);
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//return !! ebitmap_get_bit(&policy->type_attr_map[value-1], attr->s.value-1);
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}
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int get_attr_id(char *type, policydb_t *policy) {
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type_datum_t *attr = hashtab_search(policy->p_types.table, type);
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if (!attr)
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exit(1);
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if (attr->flavor != TYPE_ATTRIB)
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exit(1);
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return attr->s.value;
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}
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int set_attr(char *type, int value, policydb_t *policy) {
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type_datum_t *attr = hashtab_search(policy->p_types.table, type);
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if (!attr)
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exit(1);
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if (attr->flavor != TYPE_ATTRIB)
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exit(1);
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if(ebitmap_set_bit(&policy->type_attr_map[value-1], attr->s.value-1, 1))
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exit(1);
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if(ebitmap_set_bit(&policy->attr_type_map[attr->s.value-1], value-1, 1))
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exit(1);
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return 0;
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}
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void create_domain(char *d, policydb_t *policy) {
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symtab_datum_t *src = hashtab_search(policy->p_types.table, d);
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if(src)
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return;
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type_datum_t *typdatum = (type_datum_t *) malloc(sizeof(type_datum_t));
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type_datum_init(typdatum);
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typdatum->primary = 1;
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typdatum->flavor = TYPE_TYPE;
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uint32_t value = 0;
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int r = symtab_insert(policy, SYM_TYPES, strdup(d), typdatum, SCOPE_DECL, 1, &value);
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typdatum->s.value = value;
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fprintf(stderr, "source type %s does not exist: %d,%d\n", d, r, value);
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if (ebitmap_set_bit(&policy->global->branch_list->declared.scope[SYM_TYPES], value - 1, 1)) {
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exit(1);
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}
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policy->type_attr_map = realloc(policy->type_attr_map, sizeof(ebitmap_t)*policy->p_types.nprim);
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policy->attr_type_map = realloc(policy->attr_type_map, sizeof(ebitmap_t)*policy->p_types.nprim);
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ebitmap_init(&policy->type_attr_map[value-1]);
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ebitmap_init(&policy->attr_type_map[value-1]);
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ebitmap_set_bit(&policy->type_attr_map[value-1], value-1, 1);
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//Add the domain to all roles
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for(unsigned i=0; i<policy->p_roles.nprim; ++i) {
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//Not sure all those three calls are needed
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ebitmap_set_bit(&policy->role_val_to_struct[i]->types.negset, value-1, 0);
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ebitmap_set_bit(&policy->role_val_to_struct[i]->types.types, value-1, 1);
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type_set_expand(&policy->role_val_to_struct[i]->types, &policy->role_val_to_struct[i]->cache, policy, 0);
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}
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src = hashtab_search(policy->p_types.table, d);
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if(!src)
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exit(1);
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extern int policydb_index_decls(policydb_t * p);
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if(policydb_index_decls(policy))
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exit(1);
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if(policydb_index_classes(policy))
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exit(1);
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if(policydb_index_others(NULL, policy, 1))
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exit(1);
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set_attr("domain", value, policy);
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}
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int add_irule(int s, int t, int c, int p, int effect, int not, policydb_t* policy) {
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avtab_datum_t *av;
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avtab_key_t key;
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key.source_type = s;
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key.target_type = t;
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key.target_class = c;
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key.specified = effect;
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av = avtab_search(&policy->te_avtab, &key);
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if (av == NULL) {
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av = cmalloc(sizeof(*av));
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av->data |= 1U << (p - 1);
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int ret = avtab_insert(&policy->te_avtab, &key, av);
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if (ret) {
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fprintf(stderr, "Error inserting into avtab\n");
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return 1;
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}
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}
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if(not)
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av->data &= ~(1U << (p - 1));
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else
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av->data |= 1U << (p - 1);
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return 0;
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}
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int add_rule(char *s, char *t, char *c, char *p, int effect, int not, policydb_t *policy) {
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type_datum_t *src, *tgt;
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class_datum_t *cls;
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perm_datum_t *perm;
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src = hashtab_search(policy->p_types.table, s);
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if (src == NULL) {
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fprintf(stderr, "source type %s does not exist\n", s);
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return 1;
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}
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tgt = hashtab_search(policy->p_types.table, t);
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if (tgt == NULL) {
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fprintf(stderr, "target type %s does not exist\n", t);
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return 1;
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}
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cls = hashtab_search(policy->p_classes.table, c);
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if (cls == NULL) {
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fprintf(stderr, "class %s does not exist\n", c);
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return 1;
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}
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perm = hashtab_search(cls->permissions.table, p);
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if (perm == NULL) {
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if (cls->comdatum == NULL) {
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fprintf(stderr, "perm %s does not exist in class %s\n", p, c);
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return 1;
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}
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perm = hashtab_search(cls->comdatum->permissions.table, p);
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if (perm == NULL) {
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fprintf(stderr, "perm %s does not exist in class %s\n", p, c);
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return 1;
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}
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}
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return add_irule(src->s.value, tgt->s.value, cls->s.value, perm->s.value, effect, not, policy);
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}
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int add_typerule(char *s, char *targetAttribute, char **minusses, char *c, char *p, int effect, int not, policydb_t *policy) {
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type_datum_t *src, *tgt;
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class_datum_t *cls;
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perm_datum_t *perm;
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//64(0kB) should be enough for everyone, right?
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int m[64] = { -1 };
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src = hashtab_search(policy->p_types.table, s);
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if (src == NULL) {
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fprintf(stderr, "source type %s does not exist\n", s);
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return 1;
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}
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tgt = hashtab_search(policy->p_types.table, targetAttribute);
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if (tgt == NULL) {
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fprintf(stderr, "target type %s does not exist\n", targetAttribute);
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return 1;
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}
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if(tgt->flavor != TYPE_ATTRIB)
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exit(1);
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for(int i=0; minusses && minusses[i]; ++i) {
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type_datum_t *obj;
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obj = hashtab_search(policy->p_types.table, minusses[i]);
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if (obj == NULL) {
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fprintf(stderr, "minus type %s does not exist\n", minusses[i]);
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return 1;
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}
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m[i] = obj->s.value-1;
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m[i+1] = -1;
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}
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cls = hashtab_search(policy->p_classes.table, c);
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if (cls == NULL) {
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fprintf(stderr, "class %s does not exist\n", c);
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return 1;
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}
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perm = hashtab_search(cls->permissions.table, p);
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if (perm == NULL) {
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if (cls->comdatum == NULL) {
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fprintf(stderr, "perm %s does not exist in class %s\n", p, c);
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return 1;
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}
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perm = hashtab_search(cls->comdatum->permissions.table, p);
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if (perm == NULL) {
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fprintf(stderr, "perm %s does not exist in class %s\n", p, c);
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return 1;
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}
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}
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ebitmap_node_t *node;
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int i;
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int ret = 0;
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ebitmap_for_each_bit(&policy->attr_type_map[tgt->s.value-1], node, i) {
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if(ebitmap_node_get_bit(node, i)) {
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int found = 0;
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for(int j=0; m[j] != -1; ++j) {
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if(i == m[j])
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found = 1;
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}
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if(!found)
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ret |= add_irule(src->s.value, i+1, cls->s.value, perm->s.value, effect, not, policy);
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}
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}
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return ret;
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}
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int add_transition(char *srcS, char *origS, char *tgtS, char *c, policydb_t *policy) {
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type_datum_t *src, *tgt, *orig;
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class_datum_t *cls;
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avtab_datum_t *av;
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avtab_key_t key;
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src = hashtab_search(policy->p_types.table, srcS);
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if (src == NULL) {
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fprintf(stderr, "source type %s does not exist\n", srcS);
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return 1;
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}
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tgt = hashtab_search(policy->p_types.table, tgtS);
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if (tgt == NULL) {
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fprintf(stderr, "target type %s does not exist\n", tgtS);
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return 1;
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}
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cls = hashtab_search(policy->p_classes.table, c);
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if (cls == NULL) {
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fprintf(stderr, "class %s does not exist\n", c);
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return 1;
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}
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orig = hashtab_search(policy->p_types.table, origS);
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if (cls == NULL) {
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fprintf(stderr, "class %s does not exist\n", origS);
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return 1;
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}
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key.source_type = src->s.value;
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key.target_type = orig->s.value;
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key.target_class = cls->s.value;
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key.specified = AVTAB_TRANSITION;
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av = avtab_search(&policy->te_avtab, &key);
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if (av == NULL) {
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av = cmalloc(sizeof(*av));
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av->data = tgt->s.value;
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int ret = avtab_insert(&policy->te_avtab, &key, av);
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if (ret) {
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fprintf(stderr, "Error inserting into avtab\n");
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return 1;
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}
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} else {
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fprintf(stderr, "Warning, rule already defined! Won't override.\n");
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fprintf(stderr, "Previous value = %d, wanted value = %d\n", av->data, tgt->s.value);
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}
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return 0;
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}
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int add_file_transition(char *srcS, char *origS, char *tgtS, char *c, char* filename, policydb_t *policy) {
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type_datum_t *src, *tgt, *orig;
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class_datum_t *cls;
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src = hashtab_search(policy->p_types.table, srcS);
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if (src == NULL) {
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fprintf(stderr, "source type %s does not exist\n", srcS);
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return 1;
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}
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tgt = hashtab_search(policy->p_types.table, tgtS);
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if (tgt == NULL) {
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fprintf(stderr, "target type %s does not exist\n", tgtS);
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return 1;
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}
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cls = hashtab_search(policy->p_classes.table, c);
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if (cls == NULL) {
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fprintf(stderr, "class %s does not exist\n", c);
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return 1;
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}
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orig = hashtab_search(policy->p_types.table, origS);
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if (cls == NULL) {
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fprintf(stderr, "class %s does not exist\n", origS);
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return 1;
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}
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filename_trans_t *new_transition = cmalloc(sizeof(*new_transition));
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new_transition->stype = src->s.value;
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new_transition->ttype = orig->s.value;
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new_transition->tclass = cls->s.value;
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new_transition->otype = tgt->s.value;
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new_transition->name = strdup(filename);
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new_transition->next = policy->filename_trans;
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policy->filename_trans = new_transition;
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return 0;
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}
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int add_type(char *domainS, char *typeS, policydb_t *policy) {
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type_datum_t *domain;
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domain = hashtab_search(policy->p_types.table, domainS);
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if (domain == NULL) {
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fprintf(stderr, "source type %s does not exist\n", domainS);
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return 1;
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}
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set_attr(typeS, domain->s.value, policy);
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int typeId = get_attr_id(typeS, policy);
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//Now let's update all constraints!
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//(kernel doesn't support (yet?) type_names rules)
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for(int i=0; i<policy->p_classes.nprim; ++i) {
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class_datum_t *cl = policy->class_val_to_struct[i];
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for(constraint_node_t *n = cl->constraints; n ; n=n->next) {
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for(constraint_expr_t *e = n->expr; e; e=e->next) {
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if(e->expr_type == CEXPR_NAMES) {
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if(ebitmap_get_bit(&e->type_names->types, typeId-1)) {
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ebitmap_set_bit(&e->names, domain->s.value-1, 1);
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}
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}
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}
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}
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}
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return 0;
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}
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int load_policy(char *filename, policydb_t *policydb, struct policy_file *pf) {
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int fd;
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struct stat sb;
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void *map;
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int ret;
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fd = open(filename, O_RDONLY);
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if (fd < 0) {
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fprintf(stderr, "Can't open '%s': %s\n",
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filename, strerror(errno));
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return 1;
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}
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if (fstat(fd, &sb) < 0) {
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fprintf(stderr, "Can't stat '%s': %s\n",
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filename, strerror(errno));
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return 1;
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}
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map = mmap(NULL, sb.st_size, PROT_READ | PROT_WRITE, MAP_PRIVATE,
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fd, 0);
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if (map == MAP_FAILED) {
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fprintf(stderr, "Can't mmap '%s': %s\n",
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filename, strerror(errno));
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return 1;
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}
|
||||
|
||||
policy_file_init(pf);
|
||||
pf->type = PF_USE_MEMORY;
|
||||
pf->data = map;
|
||||
pf->len = sb.st_size;
|
||||
if (policydb_init(policydb)) {
|
||||
fprintf(stderr, "policydb_init: Out of memory!\n");
|
||||
return 1;
|
||||
}
|
||||
ret = policydb_read(policydb, pf, 1);
|
||||
if (ret) {
|
||||
fprintf(stderr, "error(s) encountered while parsing configuration\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int auto_allow(type_datum_t *src, type_datum_t *tgt, class_datum_t *cls, policydb_t *policy) {
|
||||
perm_datum_t *perm;
|
||||
hashtab_t type_table, class_table, perm_table;
|
||||
hashtab_ptr_t cur;
|
||||
|
||||
type_table = policy->p_types.table;
|
||||
class_table = policy->p_classes.table;
|
||||
|
||||
if (src == NULL) {
|
||||
for (int i = 0; i < type_table->size; ++i) {
|
||||
cur = type_table->htable[i];
|
||||
while (cur != NULL) {
|
||||
src = cur->datum;
|
||||
if(auto_allow(src, tgt, cls, policy))
|
||||
return 1;
|
||||
cur = cur->next;
|
||||
}
|
||||
}
|
||||
} else if (tgt == NULL) {
|
||||
for (int i = 0; i < type_table->size; ++i) {
|
||||
cur = type_table->htable[i];
|
||||
while (cur != NULL) {
|
||||
tgt = cur->datum;
|
||||
if(auto_allow(src, tgt, cls, policy))
|
||||
return 1;
|
||||
cur = cur->next;
|
||||
}
|
||||
}
|
||||
} else if (cls == NULL) {
|
||||
for (int i = 0; i < class_table->size; ++i) {
|
||||
cur = class_table->htable[i];
|
||||
while (cur != NULL) {
|
||||
cls = cur->datum;
|
||||
if(auto_allow(src, tgt, cls, policy))
|
||||
return 1;
|
||||
cur = cur->next;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
perm_table = cls->permissions.table;
|
||||
for (int i = 0; i < perm_table->size; ++i) {
|
||||
cur = perm_table->htable[i];
|
||||
while (cur != NULL) {
|
||||
perm = cur->datum;
|
||||
if(add_irule(src->s.value, tgt->s.value, cls->s.value, perm->s.value, AVTAB_ALLOWED, 0, policy))
|
||||
return 1;
|
||||
cur = cur->next;
|
||||
}
|
||||
}
|
||||
|
||||
if (cls->comdatum != NULL) {
|
||||
perm_table = cls->comdatum->permissions.table;
|
||||
for (int i = 0; i < perm_table->size; ++i) {
|
||||
cur = perm_table->htable[i];
|
||||
while (cur != NULL) {
|
||||
perm = cur->datum;
|
||||
if(add_irule(src->s.value, tgt->s.value, cls->s.value, perm->s.value, AVTAB_ALLOWED, 0, policy))
|
||||
return 1;
|
||||
cur = cur->next;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int live_patch(policydb_t *policydb) {
|
||||
char *filename = "/sys/fs/selinux/load";
|
||||
int fd, ret;
|
||||
void *data = NULL;
|
||||
size_t len;
|
||||
|
||||
policydb_to_image(NULL, policydb, &data, &len);
|
||||
if (data == NULL) fprintf(stderr, "Error!");
|
||||
|
||||
// based on libselinux security_load_policy()
|
||||
fd = open(filename, O_RDWR);
|
||||
if (fd < 0) {
|
||||
fprintf(stderr, "Can't open '%s': %s\n",
|
||||
filename, strerror(errno));
|
||||
return 1;
|
||||
}
|
||||
ret = write(fd, data, len);
|
||||
close(fd);
|
||||
if (ret < 0) {
|
||||
fprintf(stderr, "Could not write policy to %s\n",
|
||||
filename);
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
char *policy = NULL, *source = NULL, *target = NULL, *class = NULL, *perm = NULL;
|
||||
char *fcon = NULL, *outfile = NULL, *permissive = NULL, *attr = NULL, *filetrans = NULL;
|
||||
int exists = 0, not = 0, autoAllow = 0, live = 0;
|
||||
policydb_t policydb;
|
||||
struct policy_file pf, outpf;
|
||||
sidtab_t sidtab;
|
||||
int ch;
|
||||
FILE *fp;
|
||||
int permissive_value = 0, noaudit = 0;
|
||||
|
||||
struct option long_options[] = {
|
||||
{"attr", required_argument, NULL, 'a'},
|
||||
{"exists", no_argument, NULL, 'e'},
|
||||
{"source", required_argument, NULL, 's'},
|
||||
{"target", required_argument, NULL, 't'},
|
||||
{"class", required_argument, NULL, 'c'},
|
||||
{"perm", required_argument, NULL, 'p'},
|
||||
{"fcon", required_argument, NULL, 'f'},
|
||||
{"filetransition", required_argument, NULL, 'g'},
|
||||
{"noaudit", no_argument, NULL, 'n'},
|
||||
{"policy", required_argument, NULL, 'P'},
|
||||
{"output", required_argument, NULL, 'o'},
|
||||
{"permissive", required_argument, NULL, 'Z'},
|
||||
{"not-permissive", required_argument, NULL, 'z'},
|
||||
{"not", no_argument, NULL, 0},
|
||||
{"auto", no_argument, NULL, 0},
|
||||
{"live", no_argument, NULL, 0},
|
||||
{NULL, 0, NULL, 0}
|
||||
};
|
||||
|
||||
int option_index = -1;
|
||||
while ((ch = getopt_long(argc, argv, "a:c:ef:g:s:t:p:P:o:Z:z:n", long_options, &option_index)) != -1) {
|
||||
switch (ch) {
|
||||
case 0:
|
||||
if(strcmp(long_options[option_index].name, "not") == 0)
|
||||
not = 1;
|
||||
else if(strcmp(long_options[option_index].name, "auto") == 0)
|
||||
autoAllow = 1;
|
||||
else if(strcmp(long_options[option_index].name, "live") == 0)
|
||||
live = 1;
|
||||
else
|
||||
usage(argv[0]);
|
||||
break;
|
||||
case 'a':
|
||||
attr = optarg;
|
||||
break;
|
||||
case 'e':
|
||||
exists = 1;
|
||||
break;
|
||||
case 'f':
|
||||
fcon = optarg;
|
||||
break;
|
||||
case 'g':
|
||||
filetrans = optarg;
|
||||
break;
|
||||
case 's':
|
||||
source = optarg;
|
||||
break;
|
||||
case 't':
|
||||
target = optarg;
|
||||
break;
|
||||
case 'c':
|
||||
class = optarg;
|
||||
break;
|
||||
case 'p':
|
||||
perm = optarg;
|
||||
break;
|
||||
case 'P':
|
||||
policy = optarg;
|
||||
break;
|
||||
case 'o':
|
||||
outfile = optarg;
|
||||
break;
|
||||
case 'Z':
|
||||
permissive = optarg;
|
||||
permissive_value = 1;
|
||||
break;
|
||||
case 'z':
|
||||
permissive = optarg;
|
||||
permissive_value = 0;
|
||||
break;
|
||||
case 'n':
|
||||
noaudit = 1;
|
||||
break;
|
||||
default:
|
||||
usage(argv[0]);
|
||||
}
|
||||
}
|
||||
|
||||
if ((!source || !target || !class || !perm) && !permissive && !fcon && !attr &&!filetrans && !exists && !auto_allow )
|
||||
usage(argv[0]);
|
||||
|
||||
if(!outfile)
|
||||
outfile = policy;
|
||||
|
||||
if(!policy)
|
||||
policy = "/sys/fs/selinux/policy";
|
||||
|
||||
sepol_set_policydb(&policydb);
|
||||
sepol_set_sidtab(&sidtab);
|
||||
|
||||
if (load_policy(policy, &policydb, &pf)) {
|
||||
fprintf(stderr, "Could not load policy\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (policydb_load_isids(&policydb, &sidtab))
|
||||
return 1;
|
||||
|
||||
if (autoAllow) {
|
||||
type_datum_t *src = NULL, *tgt = NULL;
|
||||
class_datum_t *cls = NULL;
|
||||
if (source)
|
||||
src = hashtab_search(policydb.p_types.table, source);
|
||||
if (target)
|
||||
tgt = hashtab_search(policydb.p_types.table, target);
|
||||
if (class)
|
||||
cls = hashtab_search(policydb.p_classes.table, class);
|
||||
if (auto_allow(src, tgt, cls, &policydb))
|
||||
return 1;
|
||||
} else if (permissive) {
|
||||
type_datum_t *type;
|
||||
create_domain(permissive, &policydb);
|
||||
type = hashtab_search(policydb.p_types.table, permissive);
|
||||
if (type == NULL) {
|
||||
fprintf(stderr, "type %s does not exist\n", permissive);
|
||||
return 1;
|
||||
}
|
||||
if (ebitmap_set_bit(&policydb.permissive_map, type->s.value, permissive_value)) {
|
||||
fprintf(stderr, "Could not set bit in permissive map\n");
|
||||
return 1;
|
||||
}
|
||||
} else if(exists) {
|
||||
if(source) {
|
||||
type_datum_t *tmp = hashtab_search(policydb.p_types.table, source);
|
||||
if (!tmp)
|
||||
exit(1);
|
||||
else
|
||||
exit(0);
|
||||
} else if(class) {
|
||||
class_datum_t *tmp = hashtab_search(policydb.p_classes.table, class);
|
||||
if(!tmp)
|
||||
exit(1);
|
||||
else
|
||||
exit(0);
|
||||
} else {
|
||||
usage(argv[0]);
|
||||
}
|
||||
} else if(filetrans) {
|
||||
if(add_file_transition(source, fcon, target, class, filetrans, &policydb))
|
||||
return 1;
|
||||
} else if(fcon) {
|
||||
if(add_transition(source, fcon, target, class, &policydb))
|
||||
return 1;
|
||||
} else if(attr) {
|
||||
if(add_type(source, attr, &policydb))
|
||||
return 1;
|
||||
} else if(noaudit) {
|
||||
if(add_rule(source, target, class, perm, AVTAB_AUDITDENY, not, &policydb))
|
||||
return 1;
|
||||
} else {
|
||||
//Add a rule to a whole set of typeattribute, not just a type
|
||||
if(*target == '=') {
|
||||
char *saveptr = NULL;
|
||||
|
||||
char *targetAttribute = strtok_r(target, "-", &saveptr);
|
||||
|
||||
char *vals[64];
|
||||
int i = 0;
|
||||
|
||||
char *m = NULL;
|
||||
while( (m = strtok_r(NULL, "-", &saveptr)) != NULL) {
|
||||
vals[i++] = m;
|
||||
}
|
||||
vals[i] = NULL;
|
||||
|
||||
if(add_typerule(source, targetAttribute+1, vals, class, perm, AVTAB_ALLOWED, not, &policydb))
|
||||
return 1;
|
||||
} else {
|
||||
char *saveptr = NULL;
|
||||
|
||||
char *p = strtok_r(perm, ",", &saveptr);
|
||||
do {
|
||||
if (add_rule(source, target, class, p, AVTAB_ALLOWED, not, &policydb)) {
|
||||
fprintf(stderr, "Could not add rule\n");
|
||||
return 1;
|
||||
}
|
||||
} while( (p = strtok_r(NULL, ",", &saveptr)) != NULL);
|
||||
}
|
||||
}
|
||||
|
||||
if (live) {
|
||||
if (live_patch(&policydb)) {
|
||||
fprintf(stderr, "Could not load new policy into kernel\n");
|
||||
return 1;
|
||||
}
|
||||
}
|
||||
|
||||
if (outfile) {
|
||||
fp = fopen(outfile, "w");
|
||||
if (!fp) {
|
||||
fprintf(stderr, "Could not open outfile\n");
|
||||
return 1;
|
||||
}
|
||||
|
||||
policy_file_init(&outpf);
|
||||
outpf.type = PF_USE_STDIO;
|
||||
outpf.fp = fp;
|
||||
|
||||
if (policydb_write(&policydb, &outpf)) {
|
||||
fprintf(stderr, "Could not write policy\n");
|
||||
return 1;
|
||||
}
|
||||
fclose(fp);
|
||||
}
|
||||
|
||||
policydb_destroy(&policydb);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue