mirror of
https://github.com/topjohnwu/Magisk.git
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Separate public and private APIs
This commit is contained in:
topjohnwu
parent
7bb8b9039c
commit
838b2757eb
@ -3,7 +3,7 @@ LOCAL_PATH := $(call my-dir)
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include $(CLEAR_VARS)
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LOCAL_MODULE := magiskpolicy
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LOCAL_STATIC_LIBRARIES := libsepol
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LOCAL_SRC_FILES := magiskpolicy.c sepolicy.c rules.c utils.c ../utils/vector.c
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LOCAL_SRC_FILES := magiskpolicy.c sepolicy.c rules.c api.c ../utils/vector.c
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LOCAL_C_INCLUDES := jni/selinux/libsepol/include jni/utils
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LOCAL_CFLAGS := -DINDEP_BINARY
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include $(BUILD_EXECUTABLE)
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@ -1,44 +1,45 @@
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#include "magiskpolicy.h"
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#include "sepolicy.h"
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int allow(char *s, char *t, char *c, char *p) {
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int sepol_allow(char *s, char *t, char *c, char *p) {
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return add_rule(s, t, c, p, AVTAB_ALLOWED, 0);
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}
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int deny(char *s, char *t, char *c, char *p) {
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int sepol_deny(char *s, char *t, char *c, char *p) {
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return add_rule(s, t, c, p, AVTAB_ALLOWED, 1);
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}
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int auditallow(char *s, char *t, char *c, char *p) {
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int sepol_auditallow(char *s, char *t, char *c, char *p) {
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return add_rule(s, t, c, p, AVTAB_AUDITALLOW, 0);
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}
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int auditdeny(char *s, char *t, char *c, char *p) {
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int sepol_auditdeny(char *s, char *t, char *c, char *p) {
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return add_rule(s, t, c, p, AVTAB_AUDITDENY, 0);
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}
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int typetrans(char *s, char *t, char *c, char *d, char *o) {
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int sepol_typetrans(char *s, char *t, char *c, char *d, char *o) {
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if (o == NULL)
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return add_transition(s, t, c, d);
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else
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return add_file_transition(s, t, c, d, o);
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}
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int permissive(char *s) {
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int sepol_permissive(char *s) {
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return set_domain_state(s, 1);
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}
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int enforce(char *s) {
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int sepol_enforce(char *s) {
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return set_domain_state(s, 0);
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}
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int create(char *s) {
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int sepol_create(char *s) {
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return create_domain(s);
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}
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int attradd(char *s, char *a) {
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int sepol_attradd(char *s, char *a) {
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return add_typeattribute(s, a);
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}
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int exists(char* source) {
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int sepol_exists(char* source) {
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return !! hashtab_search(policy->p_types.table, source);
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}
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@ -1,5 +1,7 @@
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#include "vector.h"
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#include "magiskpolicy.h"
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/* magiskpolicy.c - Main function for policy patching
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*
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* Includes all the parsing logic for the policy statements
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*/
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#ifdef INDEP_BINARY
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int magiskpolicy_main(int argc, char *argv[]);
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@ -10,6 +12,9 @@ int main(int argc, char *argv[]) {
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#include "magisk.h"
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#endif
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#include "magiskpolicy.h"
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#include "sepolicy.h"
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static int syntax_err = 0;
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static char err_msg[ARG_MAX];
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@ -112,19 +117,19 @@ static int parse_pattern_1(int action, char* statement) {
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for (int k = 0; k < permission.size; ++k)
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switch (action) {
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case 0:
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if (allow(source.data[i], target.data[j], class, permission.data[k]))
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if (sepol_allow(source.data[i], target.data[j], class, permission.data[k]))
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fprintf(stderr, "Error in: allow %s %s %s %s\n", source.data[i], target.data[j], class, permission.data[k]);
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break;
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case 1:
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if (deny(source.data[i], target.data[j], class, permission.data[k]))
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if (sepol_deny(source.data[i], target.data[j], class, permission.data[k]))
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fprintf(stderr, "Error in: deny %s %s %s %s\n", source.data[i], target.data[j], class, permission.data[k]);
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break;
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case 2:
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if (auditallow(source.data[i], target.data[j], class, permission.data[k]))
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if (sepol_auditallow(source.data[i], target.data[j], class, permission.data[k]))
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fprintf(stderr, "Error in: auditallow %s %s %s %s\n", source.data[i], target.data[j], class, permission.data[k]);
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break;
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case 3:
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if (auditdeny(source.data[i], target.data[j], class, permission.data[k]))
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if (sepol_auditdeny(source.data[i], target.data[j], class, permission.data[k]))
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fprintf(stderr, "Error in: auditdeny %s %s %s %s\n", source.data[i], target.data[j], class, permission.data[k]);
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break;
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default:
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@ -181,7 +186,7 @@ static int parse_pattern_2(int action, char* statement) {
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for (int j = 0; j < attribute.size; ++j)
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switch (action) {
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case 0:
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if (attradd(class.data[i], attribute.data[j]))
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if (sepol_attradd(class.data[i], attribute.data[j]))
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fprintf(stderr, "Error in: attradd %s %s\n", class.data[i], attribute.data[j]);
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break;
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default:
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@ -206,15 +211,15 @@ static int parse_pattern_3(int action, char* statement) {
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for (int i = 0; i < classes.size; ++i) {
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switch (action) {
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case 0:
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if (create(classes.data[i]))
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if (sepol_create(classes.data[i]))
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fprintf(stderr, "Domain %s already exists\n", classes.data[i]);
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break;
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case 1:
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if (permissive(classes.data[i]))
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if (sepol_permissive(classes.data[i]))
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fprintf(stderr, "Error in: permissive %s\n", classes.data[i]);
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break;
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case 2:
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if (enforce(classes.data[i]))
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if (sepol_enforce(classes.data[i]))
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fprintf(stderr, "Error in: enforce %s\n", classes.data[i]);
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break;
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}
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@ -253,7 +258,7 @@ static int parse_pattern_4(int action, char* statement) {
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++state;
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}
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if (state < 4) return 1;
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if (typetrans(source, target, class, def, filename))
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if (sepol_typetrans(source, target, class, def, filename))
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fprintf(stderr, "Error in: typetrans %s %s %s %s %s\n", source, target, class, def, filename ? filename : "");
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return 0;
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}
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@ -313,8 +318,8 @@ int magiskpolicy_main(int argc, char *argv[]) {
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if (policydb_load_isids(&policydb, &sidtab))
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return 1;
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if (full) full_rules();
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else if (minimal) min_rules();
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if (full) sepol_full_rules();
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else if (minimal) sepol_min_rules();
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for (int i = 0; i < rules.size; ++i) {
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// Since strtok will modify the origin string, copy the policy for error messages
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@ -1,61 +1,27 @@
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#ifndef MAGISKPOLICY_H
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#define MAGISKPOLICY_H
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/* magiskpolicy.h - Public API for policy patching
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*/
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#ifndef _MAGISKPOLICY_H
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#define _MAGISKPOLICY_H
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#include <stdlib.h>
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#define ALL NULL
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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 <limits.h>
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#include <string.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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#include "vector.h"
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// hashtab traversal macro
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#define hashtab_for_each(table, ptr) \
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for (int _i = 0; _i < table->size; ++_i) \
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for (*ptr = table->htable[_i]; *ptr != NULL; *ptr = (*ptr)->next)
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// Global policydb
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policydb_t *policy;
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// sepolicy manipulation functions
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int load_policy(const char *filename);
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int dump_policy(const char *filename);
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int create_domain(char *d);
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int set_domain_state(char* s, int state);
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int add_transition(char *s, char *t, char *c, char *d);
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int add_file_transition(char *s, char *t, char *c, char *d, char* filename);
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int add_typeattribute(char *domainS, char *attr);
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int add_rule(char *s, char *t, char *c, char *p, int effect, int not);
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// Handy functions
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int allow(char *s, char *t, char *c, char *p);
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int deny(char *s, char *t, char *c, char *p);
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int auditallow(char *s, char *t, char *c, char *p);
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int auditdeny(char *s, char *t, char *c, char *p);
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int typetrans(char *s, char *t, char *c, char *d, char *o);
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int create(char *s);
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int permissive(char *s);
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int enforce(char *s);
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int attradd(char *s, char *a);
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int exists(char *source);
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int sepol_allow(char *s, char *t, char *c, char *p);
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int sepol_deny(char *s, char *t, char *c, char *p);
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int sepol_auditallow(char *s, char *t, char *c, char *p);
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int sepol_auditdeny(char *s, char *t, char *c, char *p);
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int sepol_typetrans(char *s, char *t, char *c, char *d, char *o);
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int sepol_create(char *s);
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int sepol_permissive(char *s);
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int sepol_enforce(char *s);
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int sepol_attradd(char *s, char *a);
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int sepol_exists(char *source);
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// Built in rules
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void full_rules();
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void min_rules();
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void sepol_full_rules();
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void sepol_min_rules();
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#endif
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316
rules.c
316
rules.c
@ -1,230 +1,230 @@
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#include "magiskpolicy.h"
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void samsung() {
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deny("init", "kernel", "security", "load_policy");
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deny("policyloader_app", "security_spota_file", "dir", "read");
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deny("policyloader_app", "security_spota_file", "dir", "write");
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deny("policyloader_app", "security_spota_file", "file", "read");
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deny("policyloader_app", "security_spota_file", "file", "write");
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deny("system_server", "security_spota_file", "dir", "read");
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deny("system_server", "security_spota_file", "dir", "write");
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deny("system_server", "security_spota_file", "file", "read");
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deny("system_server", "security_spota_file", "file", "write");
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deny("system_app", "security_spota_file", "dir", "read");
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deny("system_app", "security_spota_file", "dir", "write");
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deny("system_app", "security_spota_file", "file", "read");
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deny("system_app", "security_spota_file", "file", "write");
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deny("installd", "security_spota_file", "dir", "read");
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deny("installd", "security_spota_file", "dir", "write");
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deny("installd", "security_spota_file", "file", "read");
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deny("installd", "security_spota_file", "file", "write");
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deny("init", "security_spota_file", "dir", "read");
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deny("init", "security_spota_file", "dir", "write");
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deny("init", "security_spota_file", "file", "read");
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deny("init", "security_spota_file", "file", "write");
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deny("ueventd", "security_spota_file", "dir", "read");
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deny("ueventd", "security_spota_file", "dir", "write");
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deny("ueventd", "security_spota_file", "file", "read");
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deny("ueventd", "security_spota_file", "file", "write");
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deny("runas", "security_spota_file", "dir", "read");
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deny("runas", "security_spota_file", "dir", "write");
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deny("runas", "security_spota_file", "file", "read");
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deny("runas", "security_spota_file", "file", "write");
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deny("drsd", "security_spota_file", "dir", "read");
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deny("drsd", "security_spota_file", "dir", "write");
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deny("drsd", "security_spota_file", "file", "read");
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deny("drsd", "security_spota_file", "file", "write");
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deny("debuggerd", "security_spota_file", "dir", "read");
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deny("debuggerd", "security_spota_file", "dir", "write");
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deny("debuggerd", "security_spota_file", "file", "read");
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deny("debuggerd", "security_spota_file", "file", "write");
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deny("vold", "security_spota_file", "dir", "read");
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deny("vold", "security_spota_file", "dir", "write");
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deny("vold", "security_spota_file", "file", "read");
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deny("vold", "security_spota_file", "file", "write");
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deny("zygote", "security_spota_file", "dir", "read");
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deny("zygote", "security_spota_file", "dir", "write");
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deny("zygote", "security_spota_file", "file", "read");
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deny("zygote", "security_spota_file", "file", "write");
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deny("auditd", "security_spota_file", "dir", "read");
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deny("auditd", "security_spota_file", "dir", "write");
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deny("auditd", "security_spota_file", "file", "read");
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deny("auditd", "security_spota_file", "file", "write");
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deny("servicemanager", "security_spota_file", "dir", "read");
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deny("servicemanager", "security_spota_file", "dir", "write");
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deny("servicemanager", "security_spota_file", "file", "read");
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deny("servicemanager", "security_spota_file", "file", "write");
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deny("itsonbs", "security_spota_file", "dir", "read");
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deny("itsonbs", "security_spota_file", "dir", "write");
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deny("itsonbs", "security_spota_file", "file", "read");
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deny("itsonbs", "security_spota_file", "file", "write");
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deny("commonplatformappdomain", "security_spota_file", "dir", "read");
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deny("commonplatformappdomain", "security_spota_file", "dir", "write");
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deny("commonplatformappdomain", "security_spota_file", "file", "read");
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deny("commonplatformappdomain", "security_spota_file", "file", "write");
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sepol_deny("init", "kernel", "security", "load_policy");
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sepol_deny("policyloader_app", "security_spota_file", "dir", "read");
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sepol_deny("policyloader_app", "security_spota_file", "dir", "write");
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sepol_deny("policyloader_app", "security_spota_file", "file", "read");
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sepol_deny("policyloader_app", "security_spota_file", "file", "write");
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sepol_deny("system_server", "security_spota_file", "dir", "read");
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sepol_deny("system_server", "security_spota_file", "dir", "write");
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sepol_deny("system_server", "security_spota_file", "file", "read");
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sepol_deny("system_server", "security_spota_file", "file", "write");
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sepol_deny("system_app", "security_spota_file", "dir", "read");
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sepol_deny("system_app", "security_spota_file", "dir", "write");
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sepol_deny("system_app", "security_spota_file", "file", "read");
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sepol_deny("system_app", "security_spota_file", "file", "write");
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sepol_deny("installd", "security_spota_file", "dir", "read");
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sepol_deny("installd", "security_spota_file", "dir", "write");
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sepol_deny("installd", "security_spota_file", "file", "read");
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sepol_deny("installd", "security_spota_file", "file", "write");
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sepol_deny("init", "security_spota_file", "dir", "read");
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sepol_deny("init", "security_spota_file", "dir", "write");
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sepol_deny("init", "security_spota_file", "file", "read");
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sepol_deny("init", "security_spota_file", "file", "write");
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sepol_deny("ueventd", "security_spota_file", "dir", "read");
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sepol_deny("ueventd", "security_spota_file", "dir", "write");
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sepol_deny("ueventd", "security_spota_file", "file", "read");
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sepol_deny("ueventd", "security_spota_file", "file", "write");
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sepol_deny("runas", "security_spota_file", "dir", "read");
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sepol_deny("runas", "security_spota_file", "dir", "write");
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sepol_deny("runas", "security_spota_file", "file", "read");
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sepol_deny("runas", "security_spota_file", "file", "write");
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sepol_deny("drsd", "security_spota_file", "dir", "read");
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sepol_deny("drsd", "security_spota_file", "dir", "write");
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sepol_deny("drsd", "security_spota_file", "file", "read");
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sepol_deny("drsd", "security_spota_file", "file", "write");
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sepol_deny("debuggerd", "security_spota_file", "dir", "read");
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sepol_deny("debuggerd", "security_spota_file", "dir", "write");
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sepol_deny("debuggerd", "security_spota_file", "file", "read");
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sepol_deny("debuggerd", "security_spota_file", "file", "write");
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sepol_deny("vold", "security_spota_file", "dir", "read");
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sepol_deny("vold", "security_spota_file", "dir", "write");
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sepol_deny("vold", "security_spota_file", "file", "read");
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sepol_deny("vold", "security_spota_file", "file", "write");
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sepol_deny("zygote", "security_spota_file", "dir", "read");
|
||||
sepol_deny("zygote", "security_spota_file", "dir", "write");
|
||||
sepol_deny("zygote", "security_spota_file", "file", "read");
|
||||
sepol_deny("zygote", "security_spota_file", "file", "write");
|
||||
sepol_deny("auditd", "security_spota_file", "dir", "read");
|
||||
sepol_deny("auditd", "security_spota_file", "dir", "write");
|
||||
sepol_deny("auditd", "security_spota_file", "file", "read");
|
||||
sepol_deny("auditd", "security_spota_file", "file", "write");
|
||||
sepol_deny("servicemanager", "security_spota_file", "dir", "read");
|
||||
sepol_deny("servicemanager", "security_spota_file", "dir", "write");
|
||||
sepol_deny("servicemanager", "security_spota_file", "file", "read");
|
||||
sepol_deny("servicemanager", "security_spota_file", "file", "write");
|
||||
sepol_deny("itsonbs", "security_spota_file", "dir", "read");
|
||||
sepol_deny("itsonbs", "security_spota_file", "dir", "write");
|
||||
sepol_deny("itsonbs", "security_spota_file", "file", "read");
|
||||
sepol_deny("itsonbs", "security_spota_file", "file", "write");
|
||||
sepol_deny("commonplatformappdomain", "security_spota_file", "dir", "read");
|
||||
sepol_deny("commonplatformappdomain", "security_spota_file", "dir", "write");
|
||||
sepol_deny("commonplatformappdomain", "security_spota_file", "file", "read");
|
||||
sepol_deny("commonplatformappdomain", "security_spota_file", "file", "write");
|
||||
}
|
||||
|
||||
void allowSuClient(char *target) {
|
||||
allow(target, "rootfs", "file", "execute_no_trans");
|
||||
allow(target, "rootfs", "file", "execute");
|
||||
allow(target, "su", "unix_stream_socket", "connectto");
|
||||
allow(target, "su", "unix_stream_socket", "getopt");
|
||||
allow(target, "su_device", "dir", "search");
|
||||
allow(target, "su_device", "dir", "read");
|
||||
allow(target, "su_device", "sock_file", "read");
|
||||
allow(target, "su_device", "sock_file", "write");
|
||||
sepol_allow(target, "rootfs", "file", "execute_no_trans");
|
||||
sepol_allow(target, "rootfs", "file", "execute");
|
||||
sepol_allow(target, "su", "unix_stream_socket", "connectto");
|
||||
sepol_allow(target, "su", "unix_stream_socket", "getopt");
|
||||
sepol_allow(target, "su_device", "dir", "search");
|
||||
sepol_allow(target, "su_device", "dir", "read");
|
||||
sepol_allow(target, "su_device", "sock_file", "read");
|
||||
sepol_allow(target, "su_device", "sock_file", "write");
|
||||
}
|
||||
|
||||
void suRights() {
|
||||
allow("servicemanager", "su", "dir", "search");
|
||||
allow("servicemanager", "su", "dir", "read");
|
||||
allow("servicemanager", "su", "file", "open");
|
||||
allow("servicemanager", "su", "file", "read");
|
||||
allow("servicemanager", "su", "process", "getattr");
|
||||
allow("servicemanager", "su", "binder", "transfer");
|
||||
allow("system_server", "su", "binder", "call");
|
||||
sepol_allow("servicemanager", "su", "dir", "search");
|
||||
sepol_allow("servicemanager", "su", "dir", "read");
|
||||
sepol_allow("servicemanager", "su", "file", "open");
|
||||
sepol_allow("servicemanager", "su", "file", "read");
|
||||
sepol_allow("servicemanager", "su", "process", "getattr");
|
||||
sepol_allow("servicemanager", "su", "binder", "transfer");
|
||||
sepol_allow("system_server", "su", "binder", "call");
|
||||
}
|
||||
|
||||
void otherToSU() {
|
||||
// allowLog
|
||||
allow("logd", "su", "dir", "search");
|
||||
allow("logd", "su", "file", "read");
|
||||
allow("logd", "su", "file", "open");
|
||||
allow("logd", "su", "file", "getattr");
|
||||
sepol_allow("logd", "su", "dir", "search");
|
||||
sepol_allow("logd", "su", "file", "read");
|
||||
sepol_allow("logd", "su", "file", "open");
|
||||
sepol_allow("logd", "su", "file", "getattr");
|
||||
|
||||
// suBackL0
|
||||
allow("system_server", "su", "binder", "call");
|
||||
allow("system_server", "su", "binder", "transfer");
|
||||
sepol_allow("system_server", "su", "binder", "call");
|
||||
sepol_allow("system_server", "su", "binder", "transfer");
|
||||
|
||||
// ES Explorer opens a sokcet
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "ioctl");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "read");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "getattr");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "write");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "setattr");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "lock");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "append");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "bind");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "connect");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "getopt");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "setopt");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "shutdown");
|
||||
allow("untrusted_app", "su", "unix_stream_socket", "connectto");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "ioctl");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "read");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "getattr");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "write");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "setattr");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "lock");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "append");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "bind");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "connect");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "getopt");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "setopt");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "shutdown");
|
||||
sepol_allow("untrusted_app", "su", "unix_stream_socket", "connectto");
|
||||
|
||||
// Any domain is allowed to send su "sigchld"
|
||||
allow(ALL, "su", "process", "sigchld");
|
||||
sepol_allow(ALL, "su", "process", "sigchld");
|
||||
|
||||
// uNetworkL0
|
||||
attradd("su", "netdomain");
|
||||
attradd("su", "bluetoothdomain");
|
||||
sepol_attradd("su", "netdomain");
|
||||
sepol_attradd("su", "bluetoothdomain");
|
||||
|
||||
// suBackL6
|
||||
allow("surfaceflinger", "app_data_file", "dir", ALL);
|
||||
allow("surfaceflinger", "app_data_file", "file", ALL);
|
||||
allow("surfaceflinger", "app_data_file", "lnk_file", ALL);
|
||||
attradd("surfaceflinger", "mlstrustedsubject");
|
||||
sepol_allow("surfaceflinger", "app_data_file", "dir", ALL);
|
||||
sepol_allow("surfaceflinger", "app_data_file", "file", ALL);
|
||||
sepol_allow("surfaceflinger", "app_data_file", "lnk_file", ALL);
|
||||
sepol_attradd("surfaceflinger", "mlstrustedsubject");
|
||||
|
||||
// suMiscL6
|
||||
if (exists("audioserver"))
|
||||
allow("audioserver", "audioserver", "process", "execmem");
|
||||
if (sepol_exists("audioserver"))
|
||||
sepol_allow("audioserver", "audioserver", "process", "execmem");
|
||||
}
|
||||
|
||||
void full_rules() {
|
||||
void sepol_full_rules() {
|
||||
// Samsung specific
|
||||
// Prevent system from loading policy
|
||||
if(exists("knox_system_app"))
|
||||
if(sepol_exists("knox_system_app"))
|
||||
samsung();
|
||||
|
||||
// Min rules first
|
||||
min_rules();
|
||||
sepol_min_rules();
|
||||
|
||||
// Create domains if they don't exist
|
||||
if (!exists("su_device"))
|
||||
create("su_device");
|
||||
enforce("su_device");
|
||||
if (!sepol_exists("su_device"))
|
||||
sepol_create("su_device");
|
||||
sepol_enforce("su_device");
|
||||
|
||||
// Patch su to everything
|
||||
allow("su", ALL, ALL, ALL);
|
||||
sepol_allow("su", ALL, ALL, ALL);
|
||||
|
||||
// Autotransition su's socket to su_device
|
||||
add_transition("su", "device", "file", "su_device");
|
||||
add_transition("su", "device", "dir", "su_device");
|
||||
allow("su_device", "tmpfs", "filesystem", "associate");
|
||||
sepol_typetrans("su", "device", "file", "su_device", NULL);
|
||||
sepol_typetrans("su", "device", "dir", "su_device", NULL);
|
||||
sepol_allow("su_device", "tmpfs", "filesystem", "associate");
|
||||
|
||||
// Transition from untrusted_app to su_client
|
||||
allowSuClient("shell");
|
||||
allowSuClient("untrusted_app");
|
||||
allowSuClient("system_app");
|
||||
allowSuClient("platform_app");
|
||||
if (exists("priv_app"))
|
||||
if (sepol_exists("priv_app"))
|
||||
allowSuClient("priv_app");
|
||||
if (exists("ssd_tool"))
|
||||
if (sepol_exists("ssd_tool"))
|
||||
allowSuClient("ssd_tool");
|
||||
|
||||
// Allow init to execute su daemon/transition
|
||||
allow("init", "su", "process", "transition");
|
||||
allow("init", "su", "process", "rlimitinh");
|
||||
allow("init", "su", "process", "siginh");
|
||||
allow("init", "su", "process", "noatsecure");
|
||||
sepol_allow("init", "su", "process", "transition");
|
||||
sepol_allow("init", "su", "process", "rlimitinh");
|
||||
sepol_allow("init", "su", "process", "siginh");
|
||||
sepol_allow("init", "su", "process", "noatsecure");
|
||||
suRights();
|
||||
otherToSU();
|
||||
|
||||
// Need to set su_device/su as trusted to be accessible from other categories
|
||||
attradd("su_device", "mlstrustedobject");
|
||||
attradd("su", "mlstrustedsubject");
|
||||
sepol_attradd("su_device", "mlstrustedobject");
|
||||
sepol_attradd("su", "mlstrustedsubject");
|
||||
|
||||
}
|
||||
|
||||
// Minimal to run Magisk script before live patching
|
||||
void min_rules() {
|
||||
void sepol_min_rules() {
|
||||
|
||||
if (!exists("su"))
|
||||
create("su");
|
||||
permissive("su");
|
||||
permissive("init");
|
||||
if (!sepol_exists("su"))
|
||||
sepol_create("su");
|
||||
sepol_permissive("su");
|
||||
sepol_permissive("init");
|
||||
|
||||
attradd("su", "mlstrustedsubject");
|
||||
sepol_attradd("su", "mlstrustedsubject");
|
||||
|
||||
// Let init run stuffs in su context
|
||||
allow("kernel", "su", "fd", "use");
|
||||
allow("init", "su", "process", ALL);
|
||||
allow("init", "system_file", "dir", ALL);
|
||||
allow("init", "system_file", "lnk_file", ALL);
|
||||
allow("init", "system_file", "file", ALL);
|
||||
sepol_allow("kernel", "su", "fd", "use");
|
||||
sepol_allow("init", "su", "process", ALL);
|
||||
sepol_allow("init", "system_file", "dir", ALL);
|
||||
sepol_allow("init", "system_file", "lnk_file", ALL);
|
||||
sepol_allow("init", "system_file", "file", ALL);
|
||||
|
||||
// Misc: basic shell scripts, prop management etc.
|
||||
allow("su", "property_socket", "sock_file", "write");
|
||||
if (exists("default_prop"))
|
||||
allow("su", "default_prop", "property_service", "set");
|
||||
allow("su", "init", "unix_stream_socket", "connectto");
|
||||
allow("su", "su", "unix_dgram_socket", ALL);
|
||||
allow("su", "su", "unix_stream_socket", ALL);
|
||||
allow("su", "su", "process", ALL);
|
||||
allow("su", "su", "capability", ALL);
|
||||
allow("su", "su", "file", ALL);
|
||||
allow("su", "su", "fifo_file", ALL);
|
||||
allow("su", "su", "lnk_file", ALL);
|
||||
allow("su", "su", "dir", ALL);
|
||||
sepol_allow("su", "property_socket", "sock_file", "write");
|
||||
if (sepol_exists("default_prop"))
|
||||
sepol_allow("su", "default_prop", "property_service", "set");
|
||||
sepol_allow("su", "init", "unix_stream_socket", "connectto");
|
||||
sepol_allow("su", "su", "unix_dgram_socket", ALL);
|
||||
sepol_allow("su", "su", "unix_stream_socket", ALL);
|
||||
sepol_allow("su", "su", "process", ALL);
|
||||
sepol_allow("su", "su", "capability", ALL);
|
||||
sepol_allow("su", "su", "file", ALL);
|
||||
sepol_allow("su", "su", "fifo_file", ALL);
|
||||
sepol_allow("su", "su", "lnk_file", ALL);
|
||||
sepol_allow("su", "su", "dir", ALL);
|
||||
|
||||
// Allow su to do anything to files/dir/links
|
||||
allow("su", ALL, "file", ALL);
|
||||
allow("su", ALL, "dir", ALL);
|
||||
allow("su", ALL, "lnk_file", ALL);
|
||||
sepol_allow("su", ALL, "file", ALL);
|
||||
sepol_allow("su", ALL, "dir", ALL);
|
||||
sepol_allow("su", ALL, "lnk_file", ALL);
|
||||
|
||||
// For sepolicy live patching
|
||||
allow("su", "kernel", "security", "read_policy");
|
||||
allow("su", "kernel", "security", "load_policy");
|
||||
sepol_allow("su", "kernel", "security", "read_policy");
|
||||
sepol_allow("su", "kernel", "security", "load_policy");
|
||||
|
||||
// For mounting loop devices and mirrors
|
||||
allow("su", "kernel", "process", "setsched");
|
||||
allow("su", "labeledfs", "filesystem", "mount");
|
||||
allow("su", "labeledfs", "filesystem", "unmount");
|
||||
allow("su", "loop_device", "blk_file", ALL);
|
||||
allow("su", "block_device", "blk_file", ALL);
|
||||
allow("su", "system_block_device", "blk_file", ALL);
|
||||
sepol_allow("su", "kernel", "process", "setsched");
|
||||
sepol_allow("su", "labeledfs", "filesystem", "mount");
|
||||
sepol_allow("su", "labeledfs", "filesystem", "unmount");
|
||||
sepol_allow("su", "loop_device", "blk_file", ALL);
|
||||
sepol_allow("su", "block_device", "blk_file", ALL);
|
||||
sepol_allow("su", "system_block_device", "blk_file", ALL);
|
||||
|
||||
// Xposed
|
||||
allow("untrusted_app", "untrusted_app", "capability", "setgid");
|
||||
allow("system_server", "dex2oat_exec", "file", ALL);
|
||||
sepol_allow("untrusted_app", "untrusted_app", "capability", "setgid");
|
||||
sepol_allow("system_server", "dex2oat_exec", "file", ALL);
|
||||
|
||||
}
|
||||
|
||||
@ -1,4 +1,5 @@
|
||||
#include "magiskpolicy.h"
|
||||
#include "sepolicy.h"
|
||||
|
||||
static void *cmalloc(size_t s) {
|
||||
void *t = malloc(s);
|
||||
|
||||
48
sepolicy.h
Normal file
48
sepolicy.h
Normal file
@ -0,0 +1,48 @@
|
||||
/* sepolicy.h - Header for magiskpolicy non-public APIs
|
||||
*/
|
||||
|
||||
#ifndef _SEPOLICY_H
|
||||
#define _SEPOLICY_H
|
||||
|
||||
#define ALL NULL
|
||||
|
||||
#include <getopt.h>
|
||||
#include <unistd.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdio.h>
|
||||
#include <limits.h>
|
||||
#include <string.h>
|
||||
#include <sepol/debug.h>
|
||||
#include <sepol/policydb/policydb.h>
|
||||
#include <sepol/policydb/expand.h>
|
||||
#include <sepol/policydb/link.h>
|
||||
#include <sepol/policydb/services.h>
|
||||
#include <sepol/policydb/avrule_block.h>
|
||||
#include <sepol/policydb/conditional.h>
|
||||
#include <sepol/policydb/constraint.h>
|
||||
|
||||
#include "vector.h"
|
||||
|
||||
// hashtab traversal macro
|
||||
#define hashtab_for_each(table, ptr) \
|
||||
for (int _i = 0; _i < table->size; ++_i) \
|
||||
for (*ptr = table->htable[_i]; *ptr != NULL; *ptr = (*ptr)->next)
|
||||
|
||||
// Global policydb
|
||||
policydb_t *policy;
|
||||
|
||||
// sepolicy manipulation functions
|
||||
int load_policy(const char *filename);
|
||||
int dump_policy(const char *filename);
|
||||
int create_domain(char *d);
|
||||
int set_domain_state(char* s, int state);
|
||||
int add_transition(char *s, char *t, char *c, char *d);
|
||||
int add_file_transition(char *s, char *t, char *c, char *d, char* filename);
|
||||
int add_typeattribute(char *domainS, char *attr);
|
||||
int add_rule(char *s, char *t, char *c, char *p, int effect, int not);
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user