1 #!/usr/bin/env python3 2 3 from spdk.rpc.client import print_dict, JSONRPCException 4 5 import logging 6 import argparse 7 import spdk.rpc as rpc 8 import sys 9 import shlex 10 11 try: 12 from shlex import quote 13 except ImportError: 14 from pipes import quote 15 16 17 def print_array(a): 18 print(" ".join((quote(v) for v in a))) 19 20 21 def _fuzz_vhost_create_dev(client, socket, is_blk, use_bogus_buffer, use_valid_buffer, test_scsi_tmf, valid_lun): 22 """Create a new device in the vhost fuzzer. 23 24 Args: 25 socket: A valid unix domain socket for the dev to bind to. 26 is_blk: if set, create a virtio_blk device, otherwise use scsi. 27 use_bogus_buffer: if set, pass an invalid memory address as a buffer accompanying requests. 28 use_valid_buffer: if set, pass in a valid memory buffer with requests. Overrides use_bogus_buffer. 29 test_scsi_tmf: Test scsi management commands on the given device. Valid if and only if is_blk is false. 30 valid_lun: Supply only a valid lun number when submitting commands to the given device. Valid if and only if is_blk is false. 31 32 Returns: 33 True or False 34 """ 35 36 params = {"socket": socket, 37 "is_blk": is_blk, 38 "use_bogus_buffer": use_bogus_buffer, 39 "use_valid_buffer": use_valid_buffer, 40 "test_scsi_tmf": test_scsi_tmf, 41 "valid_lun": valid_lun} 42 43 return client.call("fuzz_vhost_create_dev", params) 44 45 46 if __name__ == "__main__": 47 parser = argparse.ArgumentParser( 48 description='SPDK RPC command line interface. NOTE: spdk/python is expected in PYTHONPATH') 49 parser.add_argument('-s', dest='server_addr', 50 help='RPC domain socket path or IP address', default='/var/tmp/spdk.sock') 51 parser.add_argument('-p', dest='port', 52 help='RPC port number (if server_addr is IP address)', 53 default=5260, type=int) 54 parser.add_argument('-t', dest='timeout', 55 help='Timeout as a floating point number expressed in seconds waiting for response. Default: 60.0', 56 default=60.0, type=float) 57 parser.add_argument('-v', dest='verbose', action='store_const', const="INFO", 58 help='Set verbose mode to INFO', default="ERROR") 59 parser.add_argument('--verbose', dest='verbose', choices=['DEBUG', 'INFO', 'ERROR'], 60 help="""Set verbose level. """) 61 subparsers = parser.add_subparsers(help='RPC methods') 62 63 def fuzz_vhost_create_dev(args): 64 _fuzz_vhost_create_dev( 65 args.client, 66 args.socket, 67 args.is_blk, 68 args.use_bogus_buffer, 69 args.use_valid_buffer, 70 args.test_scsi_tmf, 71 args.valid_lun) 72 73 p = subparsers.add_parser('fuzz_vhost_create_dev', help="Add a new device to the vhost fuzzer.") 74 p.add_argument('-s', '--socket', help="Path to a valid unix domain socket for dev binding.") 75 p.add_argument('-b', '--is-blk', help='The specified socket corresponds to a vhost-blk dev.', action='store_true') 76 p.add_argument('-u', '--use-bogus-buffer', help='Pass bogus buffer addresses with requests when fuzzing.', action='store_true') 77 p.add_argument('-v', '--use-valid-buffer', help='Pass valid buffers when fuzzing. overrides use-bogus-buffer.', action='store_true') 78 p.add_argument('-m', '--test-scsi-tmf', help='for a scsi device, test scsi management commands.', action='store_true') 79 p.add_argument('-l', '--valid-lun', help='for a scsi device, test only using valid lun IDs.', action='store_true') 80 p.set_defaults(func=fuzz_vhost_create_dev) 81 82 def call_rpc_func(args): 83 try: 84 args.func(args) 85 except JSONRPCException as ex: 86 print(ex.message) 87 exit(1) 88 89 def execute_script(parser, client, fd): 90 for rpc_call in map(str.rstrip, fd): 91 if not rpc_call.strip(): 92 continue 93 args = parser.parse_args(shlex.split(rpc_call)) 94 args.client = client 95 call_rpc_func(args) 96 97 args = parser.parse_args() 98 args.client = rpc.client.JSONRPCClient(args.server_addr, args.port, args.timeout, log_level=getattr(logging, args.verbose.upper())) 99 if hasattr(args, 'func'): 100 call_rpc_func(args) 101 elif sys.stdin.isatty(): 102 # No arguments and no data piped through stdin 103 parser.print_help() 104 exit(1) 105 else: 106 execute_script(parser, args.client, sys.stdin) 107