1 #include <darwintest.h> 2 #include <servers/bootstrap.h> 3 #include <mach/mach.h> 4 #include <mach/message.h> 5 #include <stdlib.h> 6 #include <sys/sysctl.h> 7 #include <unistd.h> 8 #include <mach/port.h> 9 #include <mach/mach_port.h> 10 11 T_GLOBAL_META(T_META_RUN_CONCURRENTLY(true)); 12 13 T_DECL(immovable_rights, "Create a port with immovable receive rights") { 14 mach_port_t imm_port; 15 mach_port_options_t opts = { 16 .flags = MPO_CONTEXT_AS_GUARD | MPO_IMMOVABLE_RECEIVE 17 }; 18 kern_return_t kr; 19 20 kr = mach_port_construct(mach_task_self(), &opts, 0x10, &imm_port); 21 T_QUIET; T_ASSERT_MACH_SUCCESS(kr, "mach_port_construct"); 22 23 mach_port_status_t status; 24 mach_msg_type_number_t status_size = MACH_PORT_RECEIVE_STATUS_COUNT; 25 kr = mach_port_get_attributes(mach_task_self(), imm_port, 26 MACH_PORT_RECEIVE_STATUS, (mach_port_info_t)&status, &status_size); 27 T_QUIET; T_ASSERT_MACH_SUCCESS(kr, "mach_port_get_attributes"); 28 T_LOG("Status flags %d", status.mps_flags); 29 T_ASSERT_NE(0, (status.mps_flags & MACH_PORT_STATUS_FLAG_GUARD_IMMOVABLE_RECEIVE), "Imm rcv bit is set"); 30 31 mach_port_t imm_port2; 32 mach_port_options_t opts2 = {}; 33 34 kr = mach_port_construct(mach_task_self(), &opts2, 0, &imm_port2); 35 T_QUIET; T_ASSERT_MACH_SUCCESS(kr, "mach_port_construct"); 36 37 kr = mach_port_guard_with_flags(mach_task_self(), imm_port2, 0x11, (uint64_t)MPG_IMMOVABLE_RECEIVE); 38 T_QUIET; T_ASSERT_MACH_SUCCESS(kr, "mach_port_guard_with_flags"); 39 40 kr = mach_port_get_attributes(mach_task_self(), imm_port2, 41 MACH_PORT_RECEIVE_STATUS, (mach_port_info_t)&status, &status_size); 42 T_QUIET; T_ASSERT_MACH_SUCCESS(kr, "mach_port_get_attributes"); 43 T_LOG("Status flags %d", status.mps_flags); 44 T_ASSERT_NE(0, (status.mps_flags & MACH_PORT_STATUS_FLAG_GUARD_IMMOVABLE_RECEIVE), "Imm rcv bit is set"); 45 46 kr = mach_port_swap_guard(mach_task_self(), imm_port2, 0x11, 0xde18); 47 T_ASSERT_MACH_SUCCESS(kr, "mach_port_swap_guard"); 48 49 kr = mach_port_unguard(mach_task_self(), imm_port2, 0xde18); 50 T_ASSERT_MACH_SUCCESS(kr, "mach_port_unguard"); 51 } 52