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2007-03-29 Vladimir Nadvornik <nadvornik@suse.cz>

	    Dmitry V. Levin <ldv@altlinux.org>

	Trace linux SG_IO ioctl arguments and results.
	* scsi.c: New file.
	* Makefile.am (strace_SOURCES): Add scsi.c
	* defs.h (scsi_ioctl): New function.
	* ioctl.c (ioctl_decode): Use scsi_ioctl().
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ldv-alt committed Jun 30, 2007
1 parent fefdd97 commit b011af5ef077fcfc2ad967579dcb1e5ed9b3193e
Showing with 127 additions and 1 deletion.
  1. +9 −0 ChangeLog
  2. +1 −1 Makefile.am
  3. +1 −0 defs.h
  4. +2 −0 ioctl.c
  5. +114 −0 scsi.c
View
@@ -1,3 +1,12 @@
+2007-03-29 Vladimir Nadvornik <nadvornik@suse.cz>
+ Dmitry V. Levin <ldv@altlinux.org>
+
+ Trace linux SG_IO ioctl arguments and results.
+ * scsi.c: New file.
+ * Makefile.am (strace_SOURCES): Add scsi.c
+ * defs.h (scsi_ioctl): New function.
+ * ioctl.c (ioctl_decode): Use scsi_ioctl().
+
2007-06-28 Dmitry V. Levin <ldv@altlinux.org>
* util.c (tv_mul): Multiply tv_usec properly.
View
@@ -15,7 +15,7 @@ INCLUDES = -I$(OS)/$(ARCH) -I$(srcdir)/$(OS)/$(ARCH) -I$(OS) -I$(srcdir)/$(OS)
strace_SOURCES = strace.c syscall.c count.c util.c desc.c file.c ipc.c \
io.c ioctl.c mem.c net.c process.c bjm.c quota.c \
resource.c signal.c sock.c system.c term.c time.c \
- proc.c stream.c
+ proc.c scsi.c stream.c
noinst_HEADERS = defs.h
EXTRA_DIST = $(man_MANS) errnoent.sh signalent.sh syscallent.sh ioctlsort.c \
View
1 defs.h
@@ -493,6 +493,7 @@ extern int proc_ioctl P((struct tcb *, int, int));
extern int stream_ioctl P((struct tcb *, int, int));
#ifdef LINUX
extern int rtc_ioctl P((struct tcb *, long, long));
+extern int scsi_ioctl P((struct tcb *, long, long));
#endif
extern void tv_tv P((struct timeval *, int, int));
View
@@ -152,6 +152,8 @@ long code, arg;
#ifdef LINUX
case 'p':
return rtc_ioctl(tcp, code, arg);
+ case 0x22:
+ return scsi_ioctl(tcp, code, arg);
#endif
default:
break;
View
114 scsi.c
@@ -0,0 +1,114 @@
+#include "defs.h"
+
+#ifdef LINUX
+#include <sys/ioctl.h>
+#include <scsi/sg.h>
+
+static const struct xlat sg_io_dxfer_direction[] = {
+ {SG_DXFER_NONE, "SG_DXFER_NONE"},
+ {SG_DXFER_TO_DEV, "SG_DXFER_TO_DEV"},
+ {SG_DXFER_FROM_DEV, "SG_DXFER_FROM_DEV"},
+ {SG_DXFER_TO_FROM_DEV, "SG_DXFER_TO_FROM_DEV"},
+ {0, NULL}
+};
+
+static void
+print_sg_io_buffer(struct tcb *tcp, unsigned char *addr, int len)
+{
+ unsigned char *buf = NULL;
+ int allocated, i;
+
+ if (len == 0)
+ return;
+ allocated = (len > max_strlen) ? max_strlen : len;
+ if (len < 0 ||
+ (buf = malloc(allocated)) == NULL ||
+ umoven(tcp, (unsigned long) addr, allocated, (char *) buf) < 0) {
+ tprintf("%p", addr);
+ free(buf);
+ return;
+ }
+ tprintf("%02x", buf[0]);
+ for (i = 1; i < allocated; ++i)
+ tprintf(", %02x", buf[i]);
+ free(buf);
+ if (allocated != len)
+ tprintf(", ...");
+}
+
+static void
+print_sg_io_req(struct tcb *tcp, struct sg_io_hdr *sg_io)
+{
+ tprintf("{'%c', ", sg_io->interface_id);
+ printxval(sg_io_dxfer_direction, sg_io->dxfer_direction,
+ "SG_DXFER_???");
+ tprintf(", cmd[%u]=[", sg_io->cmd_len);
+ print_sg_io_buffer(tcp, 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);
+ tprintf("flags=%#x", sg_io->flags);
+
+ if (sg_io->dxfer_direction == SG_DXFER_TO_DEV ||
+ sg_io->dxfer_direction == SG_DXFER_TO_FROM_DEV) {
+ tprintf(", data[%u]=[", sg_io->dxfer_len);
+ printstr(tcp, (unsigned long) sg_io->dxferp,
+ sg_io->dxfer_len);
+ tprintf("]");
+ }
+}
+
+static void
+print_sg_io_res(struct tcb *tcp, struct sg_io_hdr *sg_io)
+{
+ if (sg_io->dxfer_direction == SG_DXFER_FROM_DEV ||
+ sg_io->dxfer_direction == SG_DXFER_TO_FROM_DEV) {
+ tprintf(", data[%u]=[", sg_io->dxfer_len);
+ printstr(tcp, (unsigned long) sg_io->dxferp,
+ sg_io->dxfer_len);
+ tprintf("]");
+ }
+ tprintf(", status=%02x, ", sg_io->status);
+ tprintf("masked_status=%02x, ", sg_io->masked_status);
+ tprintf("sb[%u]=[", sg_io->sb_len_wr);
+ print_sg_io_buffer(tcp, 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=%d, ", sg_io->duration);
+ tprintf("info=%#x}", sg_io->info);
+}
+
+int
+scsi_ioctl(struct tcb *tcp, long code, long arg)
+{
+ switch (code) {
+ case SG_IO:
+ if (entering(tcp)) {
+ struct sg_io_hdr sg_io;
+
+ if (umove(tcp, arg, &sg_io) < 0)
+ tprintf(", %#lx", arg);
+ else {
+ tprintf(", ");
+ print_sg_io_req(tcp, &sg_io);
+ }
+ }
+ if (exiting(tcp)) {
+ struct sg_io_hdr sg_io;
+
+ if (!syserror(tcp) && umove(tcp, arg, &sg_io) >= 0)
+ print_sg_io_res(tcp, &sg_io);
+ else
+ tprintf("}");
+ }
+ break;
+ default:
+ if (entering(tcp))
+ tprintf(", %#lx", arg);
+ break;
+ }
+ return 1;
+}
+#endif /* LINUX */

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