mtd.c - platform/external/strace - Git at Google

 /*
  * Copyright (c) 2012 Mike Frysinger <vapier@gentoo.org>
  * Copyright (c) 2012-2017 The strace developers.
  *
  * 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 DEF_MPERS_TYPE(struct_mtd_oob_buf)

 #include <linux/ioctl.h>

 /* The mtd api changes quickly, so we have to keep a local copy */
 #include <linux/version.h>
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
 # include "mtd-abi.h"
 #else
 # include <mtd/mtd-abi.h>
 #endif

 typedef struct mtd_oob_buf struct_mtd_oob_buf;

 #include MPERS_DEFS

 #include "xlat/mtd_mode_options.h"
 #include "xlat/mtd_file_mode_options.h"
 #include "xlat/mtd_type_options.h"
 #include "xlat/mtd_flags_options.h"
 #include "xlat/mtd_otp_options.h"
 #include "xlat/mtd_nandecc_options.h"

 static void
 decode_erase_info_user(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct erase_info_user einfo;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &einfo))
 		return;

 	tprintf("{start=%#x, length=%#x}", einfo.start, einfo.length);
 }

 static void
 decode_erase_info_user64(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct erase_info_user64 einfo64;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &einfo64))
 		return;

 	tprintf("{start=%#" PRIx64 ", length=%#" PRIx64 "}",
 		(uint64_t) einfo64.start, (uint64_t) einfo64.length);
 }

 static void
 decode_mtd_oob_buf(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct_mtd_oob_buf mbuf;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &mbuf))
 		return;

 	tprintf("{start=%#x, length=%#x, ptr=", mbuf.start, mbuf.length);
 	printaddr(ptr_to_kulong(mbuf.ptr));
 	tprints("}");
 }

 static void
 decode_mtd_oob_buf64(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct mtd_oob_buf64 mbuf64;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &mbuf64))
 		return;

 	tprintf("{start=%#" PRIx64 ", length=%#x, usr_ptr=%#" PRIx64 "}",
 		(uint64_t) mbuf64.start, mbuf64.length,
 		(uint64_t) mbuf64.usr_ptr);
 }

 static void
 decode_otp_info(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct otp_info oinfo;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &oinfo))
 		return;

 	tprintf("{start=%#x, length=%#x, locked=%u}",
 		oinfo.start, oinfo.length, oinfo.locked);
 }

 static void
 decode_otp_select(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	unsigned int i;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &i))
 		return;

 	tprints("[");
 	printxval(mtd_otp_options, i, "MTD_OTP_???");
 	tprints("]");
 }

 static void
 decode_mtd_write_req(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct mtd_write_req mreq;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &mreq))
 		return;

 	tprintf("{start=%#" PRIx64 ", len=%#" PRIx64
 		", ooblen=%#" PRIx64 ", usr_data=%#" PRIx64
 		", usr_oob=%#" PRIx64 ", mode=",
 		(uint64_t) mreq.start, (uint64_t) mreq.len,
 		(uint64_t) mreq.ooblen, (uint64_t) mreq.usr_data,
 		(uint64_t) mreq.usr_oob);
 	printxval(mtd_mode_options, mreq.mode, "MTD_OPS_???");
 	tprints("}");
 }

 static void
 decode_mtd_info_user(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct mtd_info_user minfo;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &minfo))
 		return;

 	tprints("{type=");
 	printxval(mtd_type_options, minfo.type, "MTD_???");
 	tprints(", flags=");
 	printflags(mtd_flags_options, minfo.flags, "MTD_???");
 	tprintf(", size=%#x, erasesize=%#x, writesize=%#x, oobsize=%#x"
 		", padding=%#" PRIx64 "}",
 		minfo.size, minfo.erasesize, minfo.writesize, minfo.oobsize,
 		(uint64_t) minfo.padding);
 }

 static void
 decode_nand_oobinfo(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct nand_oobinfo ninfo;
 	unsigned int i, j;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &ninfo))
 		return;

 	tprints("{useecc=");
 	printxval(mtd_nandecc_options, ninfo.useecc, "MTD_NANDECC_???");
 	tprintf(", eccbytes=%#x", 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("%#x", ninfo.oobfree[i][j]);
 		}
 	}

 	tprints("}}, eccpos={");
 	for (i = 0; i < ARRAY_SIZE(ninfo.eccpos); ++i) {
 		if (i)
 			tprints(", ");
 		tprintf("%#x", ninfo.eccpos[i]);
 	}

 	tprints("}");
 }

 static void
 decode_nand_ecclayout_user(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct nand_ecclayout_user nlay;
 	unsigned int i;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &nlay))
 		return;

 	tprintf("{eccbytes=%#x, eccpos={", nlay.eccbytes);
 	for (i = 0; i < ARRAY_SIZE(nlay.eccpos); ++i) {
 		if (i)
 			tprints(", ");
 		tprintf("%#x", nlay.eccpos[i]);
 	}
 	tprintf("}, oobavail=%#x, oobfree={", nlay.oobavail);
 	for (i = 0; i < ARRAY_SIZE(nlay.oobfree); ++i) {
 		if (i)
 			tprints(", ");
 		tprintf("{offset=%#x, length=%#x}",
 			nlay.oobfree[i].offset, nlay.oobfree[i].length);
 	}
 	tprints("}");
 }

 static void
 decode_mtd_ecc_stats(struct tcb *const tcp, const kernel_ulong_t addr)
 {
 	struct mtd_ecc_stats es;

 	tprints(", ");
 	if (umove_or_printaddr(tcp, addr, &es))
 		return;

 	tprintf("{corrected=%#x, failed=%#x, badblocks=%#x, bbtblocks=%#x}",
 		es.corrected, es.failed, es.badblocks, es.bbtblocks);
 }

 MPERS_PRINTER_DECL(int, mtd_ioctl, struct tcb *const tcp,
 		   const unsigned int code, const kernel_ulong_t arg)
 {
 	switch (code) {
 	case MEMERASE:
 	case MEMLOCK:
 	case MEMUNLOCK:
 	case MEMISLOCKED:
 		decode_erase_info_user(tcp, arg);
 		break;

 	case MEMERASE64:
 		decode_erase_info_user64(tcp, arg);
 		break;

 	case MEMWRITEOOB:
 	case MEMREADOOB:
 		decode_mtd_oob_buf(tcp, arg);
 		break;

 	case MEMWRITEOOB64:
 	case MEMREADOOB64:
 		decode_mtd_oob_buf64(tcp, arg);
 		break;

 	case MEMWRITE:
 		decode_mtd_write_req(tcp, arg);
 		break;

 	case OTPGETREGIONINFO:
 		if (entering(tcp))
 			return 0;
 		/* fall through */
 	case OTPLOCK:
 		decode_otp_info(tcp, arg);
 		break;

 	case OTPSELECT:
 		decode_otp_select(tcp, arg);
 		break;

 	case MTDFILEMODE:
 		tprints(", ");
 		printxval64(mtd_file_mode_options, arg, "MTD_FILE_MODE_???");
 		break;

 	case MEMGETBADBLOCK:
 	case MEMSETBADBLOCK:
 		tprints(", ");
 		printnum_int64(tcp, arg, "%" PRIu64);
 		break;

 	case MEMGETINFO:
 		if (entering(tcp))
 			return 0;
 		decode_mtd_info_user(tcp, arg);
 		break;

 	case MEMGETOOBSEL:
 		if (entering(tcp))
 			return 0;
 		decode_nand_oobinfo(tcp, arg);
 		break;

 	case ECCGETLAYOUT:
 		if (entering(tcp))
 			return 0;
 		decode_nand_ecclayout_user(tcp, arg);
 		break;

 	case ECCGETSTATS:
 		if (entering(tcp))
 			return 0;
 		decode_mtd_ecc_stats(tcp, arg);
 		break;

 	case OTPGETREGIONCOUNT:
 		if (entering(tcp))
 			return 0;
 		tprints(", ");
 		printnum_int(tcp, arg, "%u");
 		break;

 	case MEMGETREGIONCOUNT:
 		if (entering(tcp))
 			return 0;
 		tprints(", ");
 		printnum_int(tcp, arg, "%d");
 		break;

 	case MEMGETREGIONINFO:
 		if (entering(tcp)) {
 			struct region_info_user rinfo;

 			tprints(", ");
 			if (umove_or_printaddr(tcp, arg, &rinfo))
 				break;
 			tprintf("{regionindex=%#x", rinfo.regionindex);
 			return 0;
 		} else {
 			struct region_info_user rinfo;

 			if (!syserror(tcp) && !umove(tcp, arg, &rinfo))
 				tprintf(", offset=%#x"
 					", erasesize=%#x"
 					", numblocks=%#x}",
 					rinfo.offset,
 					rinfo.erasesize,
 					rinfo.numblocks);
 			tprints("}");
 			break;
 		}

 	default:
 		return RVAL_DECODED;
 	}

 	return RVAL_IOCTL_DECODED;
 }
	/*
	* Copyright (c) 2012 Mike Frysinger <vapier@gentoo.org>
	* Copyright (c) 2012-2017 The strace developers.
	*
	* 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 DEF_MPERS_TYPE(struct_mtd_oob_buf)

	#include <linux/ioctl.h>

	/* The mtd api changes quickly, so we have to keep a local copy */
	#include <linux/version.h>
	#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 3, 0)
	# include "mtd-abi.h"
	#else
	# include <mtd/mtd-abi.h>
	#endif

	typedef struct mtd_oob_buf struct_mtd_oob_buf;

	#include MPERS_DEFS

	#include "xlat/mtd_mode_options.h"
	#include "xlat/mtd_file_mode_options.h"
	#include "xlat/mtd_type_options.h"
	#include "xlat/mtd_flags_options.h"
	#include "xlat/mtd_otp_options.h"
	#include "xlat/mtd_nandecc_options.h"

	static void
	decode_erase_info_user(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct erase_info_user einfo;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &einfo))
	return;

	tprintf("{start=%#x, length=%#x}", einfo.start, einfo.length);
	}

	static void
	decode_erase_info_user64(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct erase_info_user64 einfo64;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &einfo64))
	return;

	tprintf("{start=%#" PRIx64 ", length=%#" PRIx64 "}",
	(uint64_t) einfo64.start, (uint64_t) einfo64.length);
	}

	static void
	decode_mtd_oob_buf(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct_mtd_oob_buf mbuf;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &mbuf))
	return;

	tprintf("{start=%#x, length=%#x, ptr=", mbuf.start, mbuf.length);
	printaddr(ptr_to_kulong(mbuf.ptr));
	tprints("}");
	}

	static void
	decode_mtd_oob_buf64(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct mtd_oob_buf64 mbuf64;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &mbuf64))
	return;

	tprintf("{start=%#" PRIx64 ", length=%#x, usr_ptr=%#" PRIx64 "}",
	(uint64_t) mbuf64.start, mbuf64.length,
	(uint64_t) mbuf64.usr_ptr);
	}

	static void
	decode_otp_info(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct otp_info oinfo;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &oinfo))
	return;

	tprintf("{start=%#x, length=%#x, locked=%u}",
	oinfo.start, oinfo.length, oinfo.locked);
	}

	static void
	decode_otp_select(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	unsigned int i;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &i))
	return;

	tprints("[");
	printxval(mtd_otp_options, i, "MTD_OTP_???");
	tprints("]");
	}

	static void
	decode_mtd_write_req(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct mtd_write_req mreq;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &mreq))
	return;

	tprintf("{start=%#" PRIx64 ", len=%#" PRIx64
	", ooblen=%#" PRIx64 ", usr_data=%#" PRIx64
	", usr_oob=%#" PRIx64 ", mode=",
	(uint64_t) mreq.start, (uint64_t) mreq.len,
	(uint64_t) mreq.ooblen, (uint64_t) mreq.usr_data,
	(uint64_t) mreq.usr_oob);
	printxval(mtd_mode_options, mreq.mode, "MTD_OPS_???");
	tprints("}");
	}

	static void
	decode_mtd_info_user(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct mtd_info_user minfo;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &minfo))
	return;

	tprints("{type=");
	printxval(mtd_type_options, minfo.type, "MTD_???");
	tprints(", flags=");
	printflags(mtd_flags_options, minfo.flags, "MTD_???");
	tprintf(", size=%#x, erasesize=%#x, writesize=%#x, oobsize=%#x"
	", padding=%#" PRIx64 "}",
	minfo.size, minfo.erasesize, minfo.writesize, minfo.oobsize,
	(uint64_t) minfo.padding);
	}

	static void
	decode_nand_oobinfo(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct nand_oobinfo ninfo;
	unsigned int i, j;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &ninfo))
	return;

	tprints("{useecc=");
	printxval(mtd_nandecc_options, ninfo.useecc, "MTD_NANDECC_???");
	tprintf(", eccbytes=%#x", 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("%#x", ninfo.oobfree[i][j]);
	}
	}

	tprints("}}, eccpos={");
	for (i = 0; i < ARRAY_SIZE(ninfo.eccpos); ++i) {
	if (i)
	tprints(", ");
	tprintf("%#x", ninfo.eccpos[i]);
	}

	tprints("}");
	}

	static void
	decode_nand_ecclayout_user(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct nand_ecclayout_user nlay;
	unsigned int i;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &nlay))
	return;

	tprintf("{eccbytes=%#x, eccpos={", nlay.eccbytes);
	for (i = 0; i < ARRAY_SIZE(nlay.eccpos); ++i) {
	if (i)
	tprints(", ");
	tprintf("%#x", nlay.eccpos[i]);
	}
	tprintf("}, oobavail=%#x, oobfree={", nlay.oobavail);
	for (i = 0; i < ARRAY_SIZE(nlay.oobfree); ++i) {
	if (i)
	tprints(", ");
	tprintf("{offset=%#x, length=%#x}",
	nlay.oobfree[i].offset, nlay.oobfree[i].length);
	}
	tprints("}");
	}

	static void
	decode_mtd_ecc_stats(struct tcb *const tcp, const kernel_ulong_t addr)
	{
	struct mtd_ecc_stats es;

	tprints(", ");
	if (umove_or_printaddr(tcp, addr, &es))
	return;

	tprintf("{corrected=%#x, failed=%#x, badblocks=%#x, bbtblocks=%#x}",
	es.corrected, es.failed, es.badblocks, es.bbtblocks);
	}

	MPERS_PRINTER_DECL(int, mtd_ioctl, struct tcb *const tcp,
	const unsigned int code, const kernel_ulong_t arg)
	{
	switch (code) {
	case MEMERASE:
	case MEMLOCK:
	case MEMUNLOCK:
	case MEMISLOCKED:
	decode_erase_info_user(tcp, arg);
	break;

	case MEMERASE64:
	decode_erase_info_user64(tcp, arg);
	break;

	case MEMWRITEOOB:
	case MEMREADOOB:
	decode_mtd_oob_buf(tcp, arg);
	break;

	case MEMWRITEOOB64:
	case MEMREADOOB64:
	decode_mtd_oob_buf64(tcp, arg);
	break;

	case MEMWRITE:
	decode_mtd_write_req(tcp, arg);
	break;

	case OTPGETREGIONINFO:
	if (entering(tcp))
	return 0;
	/* fall through */
	case OTPLOCK:
	decode_otp_info(tcp, arg);
	break;

	case OTPSELECT:
	decode_otp_select(tcp, arg);
	break;

	case MTDFILEMODE:
	tprints(", ");
	printxval64(mtd_file_mode_options, arg, "MTD_FILE_MODE_???");
	break;

	case MEMGETBADBLOCK:
	case MEMSETBADBLOCK:
	tprints(", ");
	printnum_int64(tcp, arg, "%" PRIu64);
	break;

	case MEMGETINFO:
	if (entering(tcp))
	return 0;
	decode_mtd_info_user(tcp, arg);
	break;

	case MEMGETOOBSEL:
	if (entering(tcp))
	return 0;
	decode_nand_oobinfo(tcp, arg);
	break;

	case ECCGETLAYOUT:
	if (entering(tcp))
	return 0;
	decode_nand_ecclayout_user(tcp, arg);
	break;

	case ECCGETSTATS:
	if (entering(tcp))
	return 0;
	decode_mtd_ecc_stats(tcp, arg);
	break;

	case OTPGETREGIONCOUNT:
	if (entering(tcp))
	return 0;
	tprints(", ");
	printnum_int(tcp, arg, "%u");
	break;

	case MEMGETREGIONCOUNT:
	if (entering(tcp))
	return 0;
	tprints(", ");
	printnum_int(tcp, arg, "%d");
	break;

	case MEMGETREGIONINFO:
	if (entering(tcp)) {
	struct region_info_user rinfo;

	tprints(", ");
	if (umove_or_printaddr(tcp, arg, &rinfo))
	break;
	tprintf("{regionindex=%#x", rinfo.regionindex);
	return 0;
	} else {
	struct region_info_user rinfo;

	if (!syserror(tcp) && !umove(tcp, arg, &rinfo))
	tprintf(", offset=%#x"
	", erasesize=%#x"
	", numblocks=%#x}",
	rinfo.offset,
	rinfo.erasesize,
	rinfo.numblocks);
	tprints("}");
	break;
	}

	default:
	return RVAL_DECODED;
	}

	return RVAL_IOCTL_DECODED;
	}