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# Copyright 2015 PLUMgrid # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import ctypes as ct lib = ct.CDLL("libbcc.so.0", use_errno=True) # needed for perf_event_attr() ctype from .perf import Perf # keep in sync with bcc_common.h lib.bpf_module_create_c.restype = ct.c_void_p lib.bpf_module_create_c.argtypes = [ct.c_char_p, ct.c_uint, ct.POINTER(ct.c_char_p), ct.c_int, ct.c_bool, ct.c_char_p] lib.bpf_module_create_c_from_string.restype = ct.c_void_p lib.bpf_module_create_c_from_string.argtypes = [ct.c_char_p, ct.c_uint, ct.POINTER(ct.c_char_p), ct.c_int, ct.c_bool, ct.c_char_p] lib.bpf_module_rw_engine_enabled.restype = ct.c_bool lib.bpf_module_rw_engine_enabled.argtypes = None lib.bpf_module_destroy.restype = None lib.bpf_module_destroy.argtypes = [ct.c_void_p] lib.bpf_module_license.restype = ct.c_char_p lib.bpf_module_license.argtypes = [ct.c_void_p] lib.bpf_module_kern_version.restype = ct.c_uint lib.bpf_module_kern_version.argtypes = [ct.c_void_p] lib.bpf_num_functions.restype = ct.c_ulonglong lib.bpf_num_functions.argtypes = [ct.c_void_p] lib.bpf_function_name.restype = ct.c_char_p lib.bpf_function_name.argtypes = [ct.c_void_p, ct.c_ulonglong] lib.bpf_function_start.restype = ct.c_void_p lib.bpf_function_start.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_function_size.restype = ct.c_size_t lib.bpf_function_size.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_table_id.restype = ct.c_ulonglong lib.bpf_table_id.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_table_fd.restype = ct.c_int lib.bpf_table_fd.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_table_type_id.restype = ct.c_int lib.bpf_table_type_id.argtypes = [ct.c_void_p, ct.c_ulonglong] lib.bpf_table_max_entries_id.restype = ct.c_ulonglong lib.bpf_table_max_entries_id.argtypes = [ct.c_void_p, ct.c_ulonglong] lib.bpf_table_flags_id.restype = ct.c_int lib.bpf_table_flags_id.argtypes = [ct.c_void_p, ct.c_ulonglong] lib.bpf_table_key_desc.restype = ct.c_char_p lib.bpf_table_key_desc.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_table_leaf_desc.restype = ct.c_char_p lib.bpf_table_leaf_desc.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_table_key_snprintf.restype = ct.c_int lib.bpf_table_key_snprintf.argtypes = [ct.c_void_p, ct.c_ulonglong, ct.c_char_p, ct.c_ulonglong, ct.c_void_p] lib.bpf_table_leaf_snprintf.restype = ct.c_int lib.bpf_table_leaf_snprintf.argtypes = [ct.c_void_p, ct.c_ulonglong, ct.c_char_p, ct.c_ulonglong, ct.c_void_p] lib.bpf_table_key_sscanf.restype = ct.c_int lib.bpf_table_key_sscanf.argtypes = [ct.c_void_p, ct.c_ulonglong, ct.c_char_p, ct.c_void_p] lib.bpf_table_leaf_sscanf.restype = ct.c_int lib.bpf_table_leaf_sscanf.argtypes = [ct.c_void_p, ct.c_ulonglong, ct.c_char_p, ct.c_void_p] lib.bpf_perf_event_fields.restype = ct.c_ulonglong lib.bpf_perf_event_fields.argtypes = [ct.c_void_p, ct.c_char_p] lib.bpf_perf_event_field.restype = ct.c_char_p lib.bpf_perf_event_field.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_ulonglong] # keep in sync with libbpf.h lib.bpf_get_next_key.restype = ct.c_int lib.bpf_get_next_key.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p] lib.bpf_get_first_key.restype = ct.c_int lib.bpf_get_first_key.argtypes = [ct.c_int, ct.c_void_p, ct.c_uint] lib.bpf_lookup_elem.restype = ct.c_int lib.bpf_lookup_elem.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p] lib.bpf_update_elem.restype = ct.c_int lib.bpf_update_elem.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p, ct.c_ulonglong] lib.bpf_delete_elem.restype = ct.c_int lib.bpf_delete_elem.argtypes = [ct.c_int, ct.c_void_p] lib.bpf_delete_batch.restype = ct.c_int lib.bpf_delete_batch.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p] lib.bpf_update_batch.restype = ct.c_int lib.bpf_update_batch.argtypes = [ct.c_int, ct.c_void_p, ct.c_void_p, ct.POINTER(ct.c_uint32)] lib.bpf_lookup_batch.restype = ct.c_int lib.bpf_lookup_batch.argtypes = [ct.c_int, ct.POINTER(ct.c_uint32), ct.POINTER(ct.c_uint32), ct.c_void_p, ct.c_void_p, ct.c_void_p] lib.bpf_lookup_and_delete_batch.restype = ct.c_int lib.bpf_lookup_and_delete_batch.argtypes = [ct.c_int, ct.POINTER(ct.c_uint32), ct.POINTER(ct.c_uint32), ct.c_void_p, ct.c_void_p, ct.c_void_p] lib.bpf_open_raw_sock.restype = ct.c_int lib.bpf_open_raw_sock.argtypes = [ct.c_char_p] lib.bpf_attach_socket.restype = ct.c_int lib.bpf_attach_socket.argtypes = [ct.c_int, ct.c_int] lib.bcc_func_load.restype = ct.c_int lib.bcc_func_load.argtypes = [ct.c_void_p, ct.c_int, ct.c_char_p, ct.c_void_p, ct.c_size_t, ct.c_char_p, ct.c_uint, ct.c_int, ct.c_char_p, ct.c_uint, ct.c_char_p, ct.c_uint] _RAW_CB_TYPE = ct.CFUNCTYPE(None, ct.py_object, ct.c_void_p, ct.c_int) _LOST_CB_TYPE = ct.CFUNCTYPE(None, ct.py_object, ct.c_ulonglong) lib.bpf_attach_kprobe.restype = ct.c_int lib.bpf_attach_kprobe.argtypes = [ct.c_int, ct.c_int, ct.c_char_p, ct.c_char_p, ct.c_ulonglong, ct.c_int] lib.bpf_detach_kprobe.restype = ct.c_int lib.bpf_detach_kprobe.argtypes = [ct.c_char_p] lib.bpf_attach_uprobe.restype = ct.c_int lib.bpf_attach_uprobe.argtypes = [ct.c_int, ct.c_int, ct.c_char_p, ct.c_char_p, ct.c_ulonglong, ct.c_int] lib.bpf_detach_uprobe.restype = ct.c_int lib.bpf_detach_uprobe.argtypes = [ct.c_char_p] lib.bpf_attach_tracepoint.restype = ct.c_int lib.bpf_attach_tracepoint.argtypes = [ct.c_int, ct.c_char_p, ct.c_char_p] lib.bpf_detach_tracepoint.restype = ct.c_int lib.bpf_detach_tracepoint.argtypes = [ct.c_char_p, ct.c_char_p] lib.bpf_attach_raw_tracepoint.restype = ct.c_int lib.bpf_attach_raw_tracepoint.argtypes = [ct.c_int, ct.c_char_p] lib.bpf_attach_kfunc.restype = ct.c_int lib.bpf_attach_kfunc.argtypes = [ct.c_int] lib.bpf_attach_lsm.restype = ct.c_int lib.bpf_attach_lsm.argtypes = [ct.c_int] lib.bpf_prog_attach.restype = ct.c_int lib.bpf_prog_attach.argtype = [ct.c_int, ct.c_int, ct.c_int, ct.c_uint] lib.bpf_prog_detach2.restype = ct.c_int lib.bpf_prog_detach2.argtype = [ct.c_int, ct.c_int, ct.c_int] lib.bpf_has_kernel_btf.restype = ct.c_bool lib.bpf_has_kernel_btf.argtypes = None lib.kernel_struct_has_field.restype = ct.c_int lib.kernel_struct_has_field.argtypes = [ct.c_char_p, ct.c_char_p] lib.bpf_open_perf_buffer.restype = ct.c_void_p lib.bpf_open_perf_buffer.argtypes = [_RAW_CB_TYPE, _LOST_CB_TYPE, ct.py_object, ct.c_int, ct.c_int, ct.c_int] class bcc_perf_buffer_opts(ct.Structure): _fields_ = [ ('pid', ct.c_int), ('cpu', ct.c_int), ('wakeup_events', ct.c_int), ] lib.bpf_open_perf_buffer_opts.restype = ct.c_void_p lib.bpf_open_perf_buffer_opts.argtypes = [_RAW_CB_TYPE, _LOST_CB_TYPE, ct.py_object, ct.c_int, ct.POINTER(bcc_perf_buffer_opts)] lib.bpf_open_perf_event.restype = ct.c_int lib.bpf_open_perf_event.argtypes = [ct.c_uint, ct.c_ulonglong, ct.c_int, ct.c_int] lib.perf_reader_poll.restype = ct.c_int lib.perf_reader_poll.argtypes = [ct.c_int, ct.POINTER(ct.c_void_p), ct.c_int] lib.perf_reader_consume.restype = ct.c_int lib.perf_reader_consume.argtypes = [ct.c_int, ct.POINTER(ct.c_void_p)] lib.perf_reader_free.restype = None lib.perf_reader_free.argtypes = [ct.c_void_p] lib.perf_reader_fd.restype = int lib.perf_reader_fd.argtypes = [ct.c_void_p] lib.bpf_attach_xdp.restype = ct.c_int lib.bpf_attach_xdp.argtypes = [ct.c_char_p, ct.c_int, ct.c_uint] lib.bpf_attach_perf_event.restype = ct.c_int lib.bpf_attach_perf_event.argtype = [ct.c_int, ct.c_uint, ct.c_uint, ct.c_ulonglong, ct.c_ulonglong, ct.c_int, ct.c_int, ct.c_int] lib.bpf_attach_perf_event_raw.restype = ct.c_int lib.bpf_attach_perf_event_raw.argtype = [Perf.perf_event_attr(), ct.c_uint, ct.c_uint, ct.c_uint, ct.c_uint] lib.bpf_close_perf_event_fd.restype = ct.c_int lib.bpf_close_perf_event_fd.argtype = [ct.c_int] _RINGBUF_CB_TYPE = ct.CFUNCTYPE(ct.c_int, ct.c_void_p, ct.c_void_p, ct.c_int) lib.bpf_new_ringbuf.restype = ct.c_void_p lib.bpf_new_ringbuf.argtypes = [ct.c_int, _RINGBUF_CB_TYPE, ct.c_void_p] lib.bpf_free_ringbuf.restype = None lib.bpf_free_ringbuf.argtypes = [ct.c_void_p] lib.bpf_add_ringbuf.restype = ct.c_int lib.bpf_add_ringbuf.argtypes = [ct.c_void_p, ct.c_int, _RINGBUF_CB_TYPE, ct.c_void_p] lib.bpf_poll_ringbuf.restype = ct.c_int lib.bpf_poll_ringbuf.argtypes = [ct.c_void_p, ct.c_int] lib.bpf_consume_ringbuf.restype = ct.c_int lib.bpf_consume_ringbuf.argtypes = [ct.c_void_p] # bcc symbol helpers class bcc_symbol(ct.Structure): _fields_ = [ ('name', ct.c_char_p), ('demangle_name', ct.c_char_p), ('module', ct.POINTER(ct.c_char)), ('offset', ct.c_ulonglong), ] class bcc_ip_offset_union(ct.Union): _fields_ = [ ('offset', ct.c_uint64), ('ip', ct.c_uint64) ] class bcc_stacktrace_build_id(ct.Structure): _fields_ = [ ('status', ct.c_uint32), ('build_id',ct.c_ubyte*20), ('u',bcc_ip_offset_union) ] class bcc_symbol_option(ct.Structure): _fields_ = [ ('use_debug_file', ct.c_int), ('check_debug_file_crc', ct.c_int), ('lazy_symbolize', ct.c_int), ('use_symbol_type', ct.c_uint), ] lib.bcc_procutils_which_so.restype = ct.POINTER(ct.c_char) lib.bcc_procutils_which_so.argtypes = [ct.c_char_p, ct.c_int] lib.bcc_procutils_free.restype = None lib.bcc_procutils_free.argtypes = [ct.c_void_p] lib.bcc_procutils_language.restype = ct.POINTER(ct.c_char) lib.bcc_procutils_language.argtypes = [ct.c_int] lib.bcc_resolve_symname.restype = ct.c_int lib.bcc_resolve_symname.argtypes = [ ct.c_char_p, ct.c_char_p, ct.c_ulonglong, ct.c_int, ct.POINTER(bcc_symbol_option), ct.POINTER(bcc_symbol)] _SYM_CB_TYPE = ct.CFUNCTYPE(ct.c_int, ct.c_char_p, ct.c_ulonglong) lib.bcc_foreach_function_symbol.restype = ct.c_int lib.bcc_foreach_function_symbol.argtypes = [ct.c_char_p, _SYM_CB_TYPE] lib.bcc_symcache_new.restype = ct.c_void_p lib.bcc_symcache_new.argtypes = [ct.c_int, ct.POINTER(bcc_symbol_option)] lib.bcc_free_symcache.restype = ct.c_void_p lib.bcc_free_symcache.argtypes = [ct.c_void_p, ct.c_int] lib.bcc_buildsymcache_new.restype = ct.c_void_p lib.bcc_buildsymcache_new.argtypes = None lib.bcc_free_buildsymcache.restype = None lib.bcc_free_buildsymcache.argtypes = [ct.c_void_p] lib.bcc_buildsymcache_add_module.restype = ct.c_int lib.bcc_buildsymcache_add_module.argtypes = [ct.c_void_p, ct.c_char_p] lib.bcc_buildsymcache_resolve.restype = ct.c_int lib.bcc_buildsymcache_resolve.argtypes = [ct.c_void_p, ct.POINTER(bcc_stacktrace_build_id), ct.POINTER(bcc_symbol)] lib.bcc_symbol_free_demangle_name.restype = ct.c_void_p lib.bcc_symbol_free_demangle_name.argtypes = [ct.POINTER(bcc_symbol)] lib.bcc_symcache_resolve.restype = ct.c_int lib.bcc_symcache_resolve.argtypes = [ct.c_void_p, ct.c_ulonglong, ct.POINTER(bcc_symbol)] lib.bcc_symcache_resolve_no_demangle.restype = ct.c_int lib.bcc_symcache_resolve_no_demangle.argtypes = [ct.c_void_p, ct.c_ulonglong, ct.POINTER(bcc_symbol)] lib.bcc_symcache_resolve_name.restype = ct.c_int lib.bcc_symcache_resolve_name.argtypes = [ ct.c_void_p, ct.c_char_p, ct.c_char_p, ct.POINTER(ct.c_ulonglong)] lib.bcc_symcache_refresh.restype = None lib.bcc_symcache_refresh.argtypes = [ct.c_void_p] lib.bcc_free_memory.restype = ct.c_int lib.bcc_free_memory.argtypes = None lib.bcc_usdt_new_frompid.restype = ct.c_void_p lib.bcc_usdt_new_frompid.argtypes = [ct.c_int, ct.c_char_p] lib.bcc_usdt_new_frompath.restype = ct.c_void_p lib.bcc_usdt_new_frompath.argtypes = [ct.c_char_p] lib.bcc_usdt_close.restype = None lib.bcc_usdt_close.argtypes = [ct.c_void_p] lib.bcc_usdt_enable_probe.restype = ct.c_int lib.bcc_usdt_enable_probe.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_char_p] lib.bcc_usdt_enable_fully_specified_probe.restype = ct.c_int lib.bcc_usdt_enable_fully_specified_probe.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_char_p, ct.c_char_p] lib.bcc_usdt_genargs.restype = ct.c_char_p lib.bcc_usdt_genargs.argtypes = [ct.POINTER(ct.c_void_p), ct.c_int] lib.bcc_usdt_get_probe_argctype.restype = ct.c_char_p lib.bcc_usdt_get_probe_argctype.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_int] lib.bcc_usdt_get_fully_specified_probe_argctype.restype = ct.c_char_p lib.bcc_usdt_get_fully_specified_probe_argctype.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_char_p, ct.c_int] class bcc_usdt(ct.Structure): _fields_ = [ ('provider', ct.c_char_p), ('name', ct.c_char_p), ('bin_path', ct.c_char_p), ('semaphore', ct.c_ulonglong), ('num_locations', ct.c_int), ('num_arguments', ct.c_int), ] class bcc_usdt_location(ct.Structure): _fields_ = [ ('address', ct.c_ulonglong), ('bin_path', ct.c_char_p), ] class BCC_USDT_ARGUMENT_FLAGS(object): NONE = 0x0 CONSTANT = 0x1 DEREF_OFFSET = 0x2 DEREF_IDENT = 0x4 BASE_REGISTER_NAME = 0x8 INDEX_REGISTER_NAME = 0x10 SCALE = 0x20 class bcc_usdt_argument(ct.Structure): _fields_ = [ ('size', ct.c_int), ('valid', ct.c_int), ('constant', ct.c_longlong), ('deref_offset', ct.c_int), ('deref_ident', ct.c_char_p), ('base_register_name', ct.c_char_p), ('index_register_name', ct.c_char_p), ('scale', ct.c_int) ] _USDT_CB = ct.CFUNCTYPE(None, ct.POINTER(bcc_usdt)) lib.bcc_usdt_foreach.restype = None lib.bcc_usdt_foreach.argtypes = [ct.c_void_p, _USDT_CB] lib.bcc_usdt_get_location.restype = ct.c_int lib.bcc_usdt_get_location.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_char_p, ct.c_int, ct.POINTER(bcc_usdt_location)] lib.bcc_usdt_get_argument.restype = ct.c_int lib.bcc_usdt_get_argument.argtypes = [ct.c_void_p, ct.c_char_p, ct.c_char_p, ct.c_int, ct.c_int, ct.POINTER(bcc_usdt_argument)] _USDT_PROBE_CB = ct.CFUNCTYPE(None, ct.c_char_p, ct.c_char_p, ct.c_ulonglong, ct.c_int) lib.bcc_usdt_foreach_uprobe.restype = None lib.bcc_usdt_foreach_uprobe.argtypes = [ct.c_void_p, _USDT_PROBE_CB]