#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)
{
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));
+ if (entering_sg_io) {
+ memcpy(entering_sg_io, &sg_io, sizeof(sg_io));
+ entering_sg_io->interface_id = (unsigned char) 'S';
+ set_tcb_priv_data(tcp, entering_sg_io, free);
}
- return 1;
+
+ return 0;
}
static int
decode_response(struct tcb *const tcp, const kernel_ulong_t arg)
{
+ struct_sg_io_hdr *entering_sg_io = get_tcb_priv_data(tcp);
struct_sg_io_hdr sg_io;
if (umove(tcp, arg, &sg_io) < 0) {
- tprints(", ???");
- return RVAL_DECODED | 1;
+ /* print i/o fields fetched on entering syscall */
+ 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 != (unsigned char) 'S') {
- tprintf(" => interface_id=%u", sg_io.interface_id);
- return RVAL_DECODED | 1;
+ if (sg_io.interface_id != entering_sg_io->interface_id) {
+ 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)
+ if (sg_io.resid > 0 && (unsigned int) sg_io.resid <= din_len)
din_len -= sg_io.resid;
- tprints(", dxferp=");
- if (sg_io.iovec_count)
- tprint_iov_upto(tcp, sg_io.iovec_count,
- ptr_to_kulong(sg_io.dxferp),
- syserror(tcp) ? IOV_DECODE_ADDR :
- 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(", 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=%d", 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 */
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
projects / strace / blobdiff