[PATCH v2] decode mtd ioctls
Mike Frysinger
vapier at gentoo.org
Tue Apr 3 06:24:33 UTC 2012
I got tired of figuring out mtd structures (which show up a lot
in the embedded space), so add decoders for those ioctls.
* defs.h (mtd_ioctl): New prototype.
(print_loff_t): Likewise.
* io.c (print_loff_t): Delete static keyword
* ioctl.c (ioctl_decode): Call mtd_ioctl when code is 'M'.
* Makefile.am (strace_SOURCES): Add mtd.c.
* mtd.c: New file.
Signed-off-by: Mike Frysinger <vapier at gentoo.org>
---
v2
- seems mtd-user.h lies and most ioctls take pointers to ints/off_ts
rather than inlining them as the argument. my simple dummy test
code seems ok, but i'll try and boot this up on hardware to verify.
Makefile.am | 2 +-
defs.h | 2 +
io.c | 2 +-
ioctl.c | 2 +
mtd.c | 275 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 281 insertions(+), 2 deletions(-)
create mode 100644 mtd.c
diff --git a/Makefile.am b/Makefile.am
index c775801..b7e8460 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -17,7 +17,7 @@ AM_CPPFLAGS = -I$(srcdir)/$(OS)/$(ARCH) -I$(srcdir)/$(OS) -I$(builddir)/$(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 \
- scsi.c stream.c block.c pathtrace.c
+ scsi.c stream.c block.c pathtrace.c mtd.c
noinst_HEADERS = defs.h
EXTRA_DIST = $(man_MANS) errnoent.sh signalent.sh syscallent.sh ioctlsort.c \
diff --git a/defs.h b/defs.h
index 3348400..1ebbd29 100644
--- a/defs.h
+++ b/defs.h
@@ -545,6 +545,7 @@ extern void printsignal(int);
extern void tprint_iov(struct tcb *, unsigned long, unsigned long, int decode_iov);
extern void tprint_open_modes(mode_t);
extern const char *sprint_open_modes(mode_t);
+extern void print_loff_t(struct tcb *, long);
extern const struct ioctlent *ioctl_lookup(long);
extern const struct ioctlent *ioctl_next_match(const struct ioctlent *);
@@ -555,6 +556,7 @@ extern int proc_ioctl(struct tcb *, int, int);
extern int rtc_ioctl(struct tcb *, long, long);
extern int scsi_ioctl(struct tcb *, long, long);
extern int block_ioctl(struct tcb *, long, long);
+extern int mtd_ioctl(struct tcb *, long, long);
extern int tv_nz(struct timeval *);
extern int tv_cmp(struct timeval *, struct timeval *);
diff --git a/io.c b/io.c
index a7f6c29..5e697ec 100644
--- a/io.c
+++ b/io.c
@@ -261,7 +261,7 @@ sys_sendfile(struct tcb *tcp)
return 0;
}
-static void
+void
print_loff_t(struct tcb *tcp, long addr)
{
loff_t offset;
diff --git a/ioctl.c b/ioctl.c
index a8055d5..8744b41 100644
--- a/ioctl.c
+++ b/ioctl.c
@@ -88,6 +88,8 @@ ioctl_decode(struct tcb *tcp, long code, long arg)
return block_ioctl(tcp, code, arg);
case 0x22:
return scsi_ioctl(tcp, code, arg);
+ case 'M':
+ return mtd_ioctl(tcp, code, arg);
default:
break;
}
diff --git a/mtd.c b/mtd.c
new file mode 100644
index 0000000..61092d8
--- /dev/null
+++ b/mtd.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright (c) 2012 Mike Frysinger <vapier at gentoo.org>
+ *
+ * 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.
+ */
+
+#include "defs.h"
+
+#include <sys/ioctl.h>
+#include <mtd/mtd-user.h>
+
+static const struct xlat mtd_mode_options[] = {
+ { MTD_OPS_PLACE_OOB, "MTD_OPS_PLACE_OOB" },
+ { MTD_OPS_AUTO_OOB, "MTD_OPS_AUTO_OOB" },
+ { MTD_OPS_RAW, "MTD_OPS_RAW" },
+ { 0, NULL },
+};
+
+static const struct xlat mtd_type_options[] = {
+ { MTD_ABSENT, "MTD_ABSENT" },
+ { MTD_RAM, "MTD_RAM" },
+ { MTD_ROM, "MTD_ROM" },
+ { MTD_NORFLASH, "MTD_NORFLASH" },
+ { MTD_NANDFLASH, "MTD_NANDFLASH" },
+ { MTD_DATAFLASH, "MTD_DATAFLASH" },
+ { MTD_UBIVOLUME, "MTD_UBIVOLUME" },
+ { MTD_MLCNANDFLASH, "MTD_MLCNANDFLASH" },
+ { 0, NULL },
+};
+
+static const struct xlat mtd_flags_options[] = {
+ { MTD_WRITEABLE, "MTD_WRITEABLE" },
+ { MTD_BIT_WRITEABLE, "MTD_BIT_WRITEABLE" },
+ { MTD_NO_ERASE, "MTD_NO_ERASE" },
+ { MTD_POWERUP_LOCK, "MTD_POWERUP_LOCK" },
+ { 0, NULL },
+};
+
+static const struct xlat mtd_otp_options[] = {
+ { MTD_OTP_OFF, "MTD_OTP_OFF" },
+ { MTD_OTP_FACTORY, "MTD_OTP_FACTORY" },
+ { MTD_OTP_USER, "MTD_OTP_USER" },
+ { 0, NULL },
+};
+
+static const struct xlat mtd_nandecc_options[] = {
+ { MTD_NANDECC_OFF, "MTD_NANDECC_OFF" },
+ { MTD_NANDECC_PLACE, "MTD_NANDECC_PLACE" },
+ { MTD_NANDECC_AUTOPLACE, "MTD_NANDECC_AUTOPLACE" },
+ { MTD_NANDECC_PLACEONLY, "MTD_NANDECC_PLACEONLY" },
+ { MTD_NANDECC_AUTOPL_USR, "MTD_NANDECC_AUTOPL_USR" },
+ { 0, NULL },
+};
+
+int mtd_ioctl(struct tcb *tcp, long code, long arg)
+{
+ struct mtd_info_user minfo;
+ struct erase_info_user einfo;
+ struct erase_info_user64 einfo64;
+ struct mtd_oob_buf mbuf;
+ struct mtd_oob_buf64 mbuf64;
+ struct region_info_user rinfo;
+ struct otp_info oinfo;
+ struct mtd_ecc_stats estat;
+ struct mtd_write_req mreq;
+ struct nand_oobinfo ninfo;
+ struct nand_ecclayout_user nlay;
+ int i, j;
+
+ if (entering(tcp))
+ return 0;
+
+ switch (code) {
+
+ case MEMGETINFO:
+ if (!verbose(tcp) || umove(tcp, arg, &minfo) < 0)
+ return 0;
+
+ tprints(", {type=");
+ printxval(mtd_type_options, minfo.type, "MTD_???");
+ tprints(", flags=");
+ printflags(mtd_flags_options, minfo.flags, "MTD_???");
+ tprintf(", size=%#" PRIx32 ", erasesize=%#" PRIx32,
+ minfo.size, minfo.erasesize);
+ tprintf(", writesize=%#" PRIx32 ", oobsize=%#" PRIx32,
+ minfo.writesize, minfo.oobsize);
+ tprintf(", padding=%#" PRIx64 "}",
+ (uint64_t) minfo.padding);
+ return 1;
+
+ case MEMERASE:
+ case MEMLOCK:
+ case MEMUNLOCK:
+ case MEMISLOCKED:
+ if (!verbose(tcp) || umove(tcp, arg, &einfo) < 0)
+ return 0;
+
+ tprintf(", {start=%#" PRIx32 ", length=%#" PRIx32 "}",
+ einfo.start, einfo.length);
+ return 1;
+
+ case MEMERASE64:
+ if (!verbose(tcp) || umove(tcp, arg, &einfo64) < 0)
+ return 0;
+
+ tprintf(", {start=%#" PRIx64 ", length=%#" PRIx64 "}",
+ (uint64_t) einfo64.start, (uint64_t) einfo64.length);
+ return 1;
+
+ case MEMWRITEOOB:
+ case MEMREADOOB:
+ if (!verbose(tcp) || umove(tcp, arg, &mbuf) < 0)
+ return 0;
+
+ tprintf(", {start=%#" PRIx32 ", length=%#" PRIx32 ", ptr=...}",
+ mbuf.start, mbuf.length);
+ return 1;
+
+ case MEMWRITEOOB64:
+ case MEMREADOOB64:
+ if (!verbose(tcp) || umove(tcp, arg, &mbuf64) < 0)
+ return 0;
+
+ tprintf(", {start=%#" PRIx64 ", length=%#" PRIx64 ", ptr=...}",
+ (uint64_t) mbuf64.start, (uint64_t) mbuf64.length);
+ return 1;
+
+ case MEMGETREGIONINFO:
+ if (!verbose(tcp) || umove(tcp, arg, &rinfo) < 0)
+ return 0;
+
+ tprintf(", {offset=%#" PRIx32 ", erasesize=%#" PRIx32,
+ rinfo.offset, rinfo.erasesize);
+ tprintf(", numblocks=%#" PRIx32 ", regionindex=%#" PRIx32 "}",
+ rinfo.numblocks, rinfo.regionindex);
+ return 1;
+
+ case MEMGETOOBSEL:
+ if (!verbose(tcp) || umove(tcp, arg, &ninfo) < 0)
+ return 0;
+
+ tprints(", {useecc=");
+ printxval(mtd_nandecc_options, ninfo.useecc, "MTD_NANDECC_???");
+ tprintf(", eccbytes=%#" PRIx32, ninfo.eccbytes);
+
+ tprints(", oobfree={");
+ for (i = 0; i < ARRAY_SIZE(ninfo.oobfree); ++i) {
+ if (i)
+ tprints("}, ");
+ tprints("{");
+ for (j = 0; j < ARRAY_SIZE(ninfo.oobfree[0]); ++j) {
+ if (j)
+ tprints(", ");
+ tprintf("%#" PRIx32, ninfo.oobfree[i][j]);
+ }
+ }
+
+ tprints("}}, eccpos={");
+ for (i = 0; i < ARRAY_SIZE(ninfo.eccpos); ++i) {
+ if (i)
+ tprints(", ");
+ tprintf("%#" PRIx32, ninfo.eccpos[i]);
+ }
+
+ tprints("}");
+ return 1;
+
+ case OTPGETREGIONINFO:
+ case OTPLOCK:
+ if (!verbose(tcp) || umove(tcp, arg, &oinfo) < 0)
+ return 0;
+
+ tprintf(", {start=%#" PRIx32 ", length=%#" PRIx32 ", locked=%" PRIu32 "}",
+ oinfo.start, oinfo.length, oinfo.locked);
+ return 1;
+
+ case ECCGETLAYOUT:
+ if (!verbose(tcp) || umove(tcp, arg, &nlay) < 0)
+ return 0;
+
+ tprintf(", {eccbytes=%#" PRIx32 ", eccpos={", nlay.eccbytes);
+ for (i = 0; i < ARRAY_SIZE(nlay.eccpos); ++i) {
+ if (i)
+ tprints(", ");
+ tprintf("%#" PRIx32, nlay.eccpos[i]);
+ }
+ tprintf("}, oobavail=%#" PRIx32 ", oobfree={", nlay.oobavail);
+ for (i = 0; i < ARRAY_SIZE(nlay.oobfree); ++i) {
+ if (i)
+ tprints(", ");
+ tprintf("{offset=%#" PRIx32 ", length=%#" PRIx32 "}",
+ nlay.oobfree[i].offset, nlay.oobfree[i].length);
+ }
+ tprints("}");
+ return 1;
+
+ case ECCGETSTATS:
+ if (!verbose(tcp) || umove(tcp, arg, &estat) < 0)
+ return 0;
+
+ tprintf(", {corrected=%#" PRIx32 ", failed=%#" PRIx32,
+ estat.corrected, estat.failed);
+ tprintf(", badblocks=%#" PRIx32 ", bbtblocks=%#" PRIx32 "}",
+ estat.badblocks, estat.bbtblocks);
+ return 1;
+
+ case MEMWRITE:
+ if (!verbose(tcp) || umove(tcp, arg, &mreq) < 0)
+ return 0;
+
+ tprintf(", {start=%#" PRIx64 ", len=%#" PRIx64,
+ (uint64_t) mreq.start, (uint64_t) mreq.len);
+ tprintf(", ooblen=%#" PRIx64 ", usr_data=%#" PRIx64,
+ (uint64_t) mreq.ooblen, (uint64_t) mreq.usr_data);
+ tprintf(", usr_oob=%#" PRIx64 ", mode=",
+ (uint64_t) mreq.usr_oob);
+ printxval(mtd_mode_options, mreq.mode, "MTD_OPS_???");
+ tprints(", padding=...}");
+ return 1;
+
+ case OTPSELECT:
+ if (!verbose(tcp) || umove(tcp, arg, &i) < 0)
+ return 0;
+
+ tprints(", [");
+ printxval(mtd_otp_options, i, "MTD_OTP_???");
+ tprints("]");
+ return 1;
+
+ case MEMGETBADBLOCK:
+ case MEMSETBADBLOCK:
+ if (!verbose(tcp))
+ return 0;
+
+ tprints(", ");
+ print_loff_t(tcp, arg);
+ return 1;
+
+ case OTPGETREGIONCOUNT:
+ if (!verbose(tcp) || umove(tcp, arg, &i) < 0)
+ return 0;
+
+ tprintf(", [%i]", i);
+ return 1;
+
+ case MTDFILEMODE:
+ /* XXX: process return value as enum mtd_file_modes */
+
+ case MEMGETREGIONCOUNT:
+ /* These ones take simple args, so let default printer handle it */
+
+ default:
+ return 0;
+ }
+}
--
1.7.8.5
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