1 #!/usr/sbin/dtrace -s 2 /* 3 * This file and its contents are supplied under the terms of the 4 * Common Development and Distribution License ("CDDL"), version 1.0. 5 * You may only use this file in accordance with the terms of version 6 * 1.0 of the CDDL. 7 * 8 * A full copy of the text of the CDDL should have accompanied this 9 * source. A copy of the CDDL is also available via the Internet at 10 * http://www.illumos.org/license/CDDL. 11 */ 12 13 /* 14 * Copyright 2018 Nexenta Systems, Inc. All rights reserved. 15 */ 16 17 /* 18 * User-level dtrace for smbd 19 * Usage: dtrace -s smbd-doorsvc.d -p `pgrep smbd` 20 */ 21 22 #pragma D option flowindent 23 24 self int trace; 25 self int mask; 26 27 /* 28 * smbd_door_dispatch_op() is the logical top of smbd door service calls. 29 */ 30 pid$target:*smbd:smbd_door_dispatch_op:entry 31 { 32 self->trace++; 33 } 34 35 /* 36 * If traced and not masked, print entry/return 37 */ 38 pid$target:*smbd::entry, 39 pid$target:libmlsvc.so.1::entry, 40 pid$target:libmlrpc.so.2::entry, 41 pid$target:libsmbns.so.1::entry, 42 pid$target:libsmb.so.1::entry, 43 pid$target:libsmbfs.so.1::entry 44 /self->trace > 0 && self->mask == 0/ 45 { 46 printf("\t0x%x", arg0); 47 printf("\t0x%x", arg1); 48 printf("\t0x%x", arg2); 49 printf("\t0x%x", arg3); 50 printf("\t0x%x", arg4); 51 printf("\t0x%x", arg5); 52 } 53 54 /* 55 * Mask (don't print) all function calls below these functions. 56 * These make many boring, repetitive function calls like 57 * smb_mbtowc, smb_msgbuf_has_space, ... 58 */ 59 pid$target::smb_msgbuf_decode:entry, 60 pid$target::smb_msgbuf_encode:entry, 61 pid$target::smb_strlwr:entry, 62 pid$target::smb_strupr:entry, 63 pid$target::smb_wcequiv_strlen:entry 64 { 65 self->mask++; 66 } 67 68 /* 69 * Now inverses of above, unwind order. 70 */ 71 72 pid$target::smb_msgbuf_decode:return, 73 pid$target::smb_msgbuf_encode:return, 74 pid$target::smb_strlwr:return, 75 pid$target::smb_strupr:return, 76 pid$target::smb_wcequiv_strlen:return 77 { 78 self->mask--; 79 } 80 81 pid$target:*smbd::return, 82 pid$target:libmlsvc.so.1::return, 83 pid$target:libmlrpc.so.2::return, 84 pid$target:libsmbns.so.1::return, 85 pid$target:libsmb.so.1::return, 86 pid$target:libsmbfs.so.1::return 87 /self->trace > 0 && self->mask == 0/ 88 { 89 printf("\t0x%x", arg1); 90 } 91 92 pid$target:*smbd:smbd_door_dispatch_op:return 93 { 94 self->trace--; 95 } 96