]> granicus.if.org Git - strace/blobdiff - sg_io_v3.c
Update copyright headers
[strace] / sg_io_v3.c
index 2c1045c5d90cff0b3c50404fe43e0e0fe2942c24..bfe04afd2f73550a9659f445fe73666f2f4f6e6d 100644 (file)
@@ -1,30 +1,10 @@
 /*
  * Copyright (c) 2007 Vladimir Nadvornik <nadvornik@suse.cz>
- * Copyright (c) 2007-2017 Dmitry V. Levin <ldv@altlinux.org>
+ * Copyright (c) 2007-2018 Dmitry V. Levin <ldv@altlinux.org>
  * Copyright (c) 2015 Bart Van Assche <bart.vanassche@sandisk.com>
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * SPDX-License-Identifier: LGPL-2.1-or-later
  */
 
 #include "defs.h"
@@ -44,16 +24,29 @@ typedef struct sg_io_hdr struct_sg_io_hdr;
 #include "xlat/sg_io_info.h"
 
 #ifdef HAVE_SCSI_SG_H
+# include "print_fields.h"
 # include "xlat/sg_io_dxfer_direction.h"
 # include "xlat/sg_io_flags.h"
 
 static void
 print_sg_io_buffer(struct tcb *const tcp, const kernel_ulong_t addr,
-                  const unsigned int len)
+                  const unsigned int data_size, const unsigned int iovec_count)
 {
-       printstr_ex(tcp, addr, len, QUOTE_FORCE_HEX);
+       if (iovec_count) {
+               tprint_iov_upto(tcp, iovec_count, addr, IOV_DECODE_STR,
+                               data_size);
+       } else {
+               printstr_ex(tcp, addr, data_size, QUOTE_FORCE_HEX);
+       }
 }
 
+#define PRINT_FIELD_SG_IO_BUFFER(prefix_, where_, field_, size_, count_, tcp_) \
+       do {                                                                    \
+               STRACE_PRINTF("%s%s=", (prefix_), #field_);                     \
+               print_sg_io_buffer((tcp_), (mpers_ptr_t)((where_).field_),      \
+                                  (size_), (count_));                          \
+       } while (0)
+
 static int
 decode_request(struct tcb *const tcp, const kernel_ulong_t arg)
 {
@@ -65,32 +58,22 @@ decode_request(struct tcb *const tcp, const kernel_ulong_t arg)
        if (umoven_or_printaddr(tcp, arg + skip_iid, sizeof(sg_io) - skip_iid,
                                &sg_io.dxfer_direction)) {
                tprints("}");
-               return RVAL_DECODED | 1;
+               return RVAL_IOCTL_DECODED;
        }
 
-       tprints("dxfer_direction=");
-       printxval(sg_io_dxfer_direction, sg_io.dxfer_direction,
-                 "SG_DXFER_???");
-       tprintf(", cmd_len=%u, cmdp=", sg_io.cmd_len);
-       print_sg_io_buffer(tcp, ptr_to_kulong(sg_io.cmdp), sg_io.cmd_len);
-       tprintf(", mx_sb_len=%d", sg_io.mx_sb_len);
-       tprintf(", iovec_count=%d", sg_io.iovec_count);
-       tprintf(", dxfer_len=%u", sg_io.dxfer_len);
-       tprintf(", timeout=%u", sg_io.timeout);
-       tprints(", flags=");
-       printflags(sg_io_flags, sg_io.flags, "SG_FLAG_???");
+       PRINT_FIELD_XVAL("", sg_io, dxfer_direction, sg_io_dxfer_direction,
+                        "SG_DXFER_???");
+       PRINT_FIELD_U(", ", sg_io, cmd_len);
+       PRINT_FIELD_SG_IO_BUFFER(", ", sg_io, cmdp, sg_io.cmd_len, 0, tcp);
+       PRINT_FIELD_U(", ", sg_io, mx_sb_len);
+       PRINT_FIELD_U(", ", sg_io, iovec_count);
+       PRINT_FIELD_U(", ", sg_io, dxfer_len);
+       PRINT_FIELD_U(", ", sg_io, timeout);
+       PRINT_FIELD_FLAGS(", ", sg_io, flags, sg_io_flags, "SG_FLAG_???");
 
        if (sg_io.dxfer_direction == SG_DXFER_TO_DEV ||
            sg_io.dxfer_direction == SG_DXFER_TO_FROM_DEV) {
-               tprints(", dxferp=");
-               if (sg_io.iovec_count)
-                       tprint_iov_upto(tcp, sg_io.iovec_count,
-                                       ptr_to_kulong(sg_io.dxferp),
-                                       IOV_DECODE_STR,
-                                       sg_io.dxfer_len);
-               else
-                       print_sg_io_buffer(tcp, ptr_to_kulong(sg_io.dxferp),
-                                          sg_io.dxfer_len);
+               PRINT_FIELD_SG_IO_BUFFER(", ", sg_io, dxferp, sg_io.dxfer_len, sg_io.iovec_count, tcp);
        }
 
        struct_sg_io_hdr *entering_sg_io = malloc(sizeof(*entering_sg_io));
@@ -100,7 +83,7 @@ decode_request(struct tcb *const tcp, const kernel_ulong_t arg)
                set_tcb_priv_data(tcp, entering_sg_io, free);
        }
 
-       return 1;
+       return 0;
 }
 
 static int
@@ -111,54 +94,48 @@ decode_response(struct tcb *const tcp, const kernel_ulong_t arg)
 
        if (umove(tcp, arg, &sg_io) < 0) {
                /* print i/o fields fetched on entering syscall */
-               if (entering_sg_io->dxfer_direction == SG_DXFER_FROM_DEV) {
-                       tprints(", dxferp=");
-                       printaddr(ptr_to_kulong(entering_sg_io->dxferp));
-               }
-               tprints(", sbp=");
-               printaddr(ptr_to_kulong(entering_sg_io->sbp));
-               return RVAL_DECODED | 1;
+               if (entering_sg_io->dxfer_direction == SG_DXFER_FROM_DEV)
+                       PRINT_FIELD_PTR(", ", *entering_sg_io, dxferp);
+               PRINT_FIELD_PTR(", ", *entering_sg_io, sbp);
+               return RVAL_IOCTL_DECODED;
        }
 
        if (sg_io.interface_id != entering_sg_io->interface_id) {
-               tprintf(" => interface_id=%u", sg_io.interface_id);
-               return RVAL_DECODED | 1;
+               PRINT_FIELD_U(" => ", sg_io, interface_id);
+               return RVAL_IOCTL_DECODED;
        }
 
        if (sg_io.dxfer_direction == SG_DXFER_FROM_DEV ||
            sg_io.dxfer_direction == SG_DXFER_TO_FROM_DEV) {
                uint32_t din_len = sg_io.dxfer_len;
+               const char *prefix = NULL;
 
                if (sg_io.resid > 0 && (unsigned int) sg_io.resid <= din_len)
                        din_len -= sg_io.resid;
-               if (sg_io.dxfer_direction == SG_DXFER_FROM_DEV) {
-                       tprints(", dxferp=");
-               } else if (din_len) {
-                       tprints(" => dxferp=");
-               }
-               if (sg_io.dxfer_direction == SG_DXFER_FROM_DEV || din_len) {
-                       if (sg_io.iovec_count)
-                               tprint_iov_upto(tcp, sg_io.iovec_count,
-                                               ptr_to_kulong(sg_io.dxferp),
-                                               IOV_DECODE_STR, din_len);
-                       else
-                               print_sg_io_buffer(tcp, ptr_to_kulong(sg_io.dxferp),
-                                                  din_len);
+
+               if (sg_io.dxfer_direction == SG_DXFER_FROM_DEV)
+                       prefix = ", ";
+               else if (din_len)
+                       prefix = " => ";
+
+               if (prefix) {
+                       tprints(prefix);
+                       PRINT_FIELD_SG_IO_BUFFER("", sg_io, dxferp, din_len,
+                                                sg_io.iovec_count, tcp);
                }
        }
-       tprintf(", status=%#x", sg_io.status);
-       tprintf(", masked_status=%#x", sg_io.masked_status);
-       tprintf(", msg_status=%#x", sg_io.msg_status);
-       tprintf(", sb_len_wr=%u, sbp=", sg_io.sb_len_wr);
-       print_sg_io_buffer(tcp, ptr_to_kulong(sg_io.sbp), sg_io.sb_len_wr);
-       tprintf(", host_status=%#x", sg_io.host_status);
-       tprintf(", driver_status=%#x", sg_io.driver_status);
-       tprintf(", resid=%d", sg_io.resid);
-       tprintf(", duration=%u", sg_io.duration);
-       tprints(", info=");
-       printflags(sg_io_info, sg_io.info, "SG_INFO_???");
-
-       return RVAL_DECODED | 1;
+       PRINT_FIELD_X(", ", sg_io, status);
+       PRINT_FIELD_X(", ", sg_io, masked_status);
+       PRINT_FIELD_X(", ", sg_io, msg_status);
+       PRINT_FIELD_U(", ", sg_io, sb_len_wr);
+       PRINT_FIELD_SG_IO_BUFFER(", ", sg_io, sbp, sg_io.sb_len_wr, 0, tcp);
+       PRINT_FIELD_X(", ", sg_io, host_status);
+       PRINT_FIELD_X(", ", sg_io, driver_status);
+       PRINT_FIELD_D(", ", sg_io, resid);
+       PRINT_FIELD_U(", ", sg_io, duration);
+       PRINT_FIELD_FLAGS(", ", sg_io, info, sg_io_info, "SG_INFO_???");
+
+       return RVAL_IOCTL_DECODED;
 }
 
 #else /* !HAVE_SCSI_SG_H */
@@ -167,7 +144,7 @@ static int
 decode_request(struct tcb *const tcp, const kernel_ulong_t arg)
 {
        tprints("{interface_id='S', ...}");
-       return RVAL_DECODED | 1;
+       return RVAL_IOCTL_DECODED;
 }
 
 static int