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-rw-r--r--usr/src/common/ucode/mkerrno.sh77
-rw-r--r--usr/src/common/ucode/ucode_errno.h60
-rw-r--r--usr/src/common/ucode/ucode_utils.c169
3 files changed, 306 insertions, 0 deletions
diff --git a/usr/src/common/ucode/mkerrno.sh b/usr/src/common/ucode/mkerrno.sh
new file mode 100644
index 0000000000..9b8ef1c3a5
--- /dev/null
+++ b/usr/src/common/ucode/mkerrno.sh
@@ -0,0 +1,77 @@
+#!/bin/sh
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+# Use is subject to license terms.
+#
+#ident "%Z%%M% %I% %E% SMI"
+
+
+echo "/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#include <locale.h>
+#include <libintl.h>
+#include <ucode/ucode_errno.h>
+#include <stdlib.h>
+
+static const struct {
+\tchar *uce_name;\t\t/* error name */
+\tchar *uce_msg;\t\t/* error message */
+} _ucode_errstr[] = {
+/*
+ * TRANSLATION_NOTE
+ * The following message strings that begin with EM_ do not
+ * need to be translated.
+ */
+"
+pattern='^ \(EM_[A-Z0-9_]*\),*'
+replace=' { "\1", '
+open=' \/\* '
+openrepl='"'
+close=' \*\/$'
+closerepl='" },'
+( sed -n "s/$pattern/$replace/p" < $1 | sed -n "s/$open/$openrepl/p" |
+ sed -n "s/$close/$closerepl/p" ) || exit 1
+
+echo "\
+};\n\
+\n\
+static int _ucode_nerrno = sizeof (_ucode_errstr) / sizeof (_ucode_errstr[0]);\n\
+\n\
+const char *
+ucode_strerror(ucode_errno_t errno)
+{
+ return (errno < 0 || errno >= _ucode_nerrno ?
+ gettext(\"unknown error\") :
+ gettext(_ucode_errstr[errno].uce_msg));
+}
+
+const char *
+ucode_errname(ucode_errno_t errno)
+{
+ return (errno < 0 || errno >= _ucode_nerrno ? NULL :
+ gettext(_ucode_errstr[errno].uce_name));
+}"
+
+exit 0
diff --git a/usr/src/common/ucode/ucode_errno.h b/usr/src/common/ucode/ucode_errno.h
new file mode 100644
index 0000000000..96471142df
--- /dev/null
+++ b/usr/src/common/ucode/ucode_errno.h
@@ -0,0 +1,60 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _UCODE_ERRNO_H
+#define _UCODE_ERRNO_H
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum ucode_errno {
+ EM_OK, /* No error */
+ EM_FILESIZE, /* File size is invalid */
+ EM_OPENFILE, /* Failed to open file */
+ EM_FILEFORMAT, /* Not a valid microcode file */
+ EM_HEADER, /* File header is invalid */
+ EM_CHECKSUM, /* Checksum is invalid */
+ EM_INVALIDARG, /* Invalid argument(s) */
+ EM_NOMATCH, /* No matching microcode found */
+ EM_HIGHERREV, /* File does not contain higher revision microcode */
+ EM_NOTSUP, /* Processor does not support microcode operations */
+ EM_UPDATE, /* Failed to update to the latest revision */
+ EM_SYS, /* System call failed. See errno */
+ EM_NOVENDOR, /* File must start with vendor string */
+ EM_NOMEM /* Not enough memory */
+} ucode_errno_t;
+
+extern const char *ucode_strerror(ucode_errno_t);
+extern const char *ucode_errname(ucode_errno_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _UCODE_ERRNO_H */
diff --git a/usr/src/common/ucode/ucode_utils.c b/usr/src/common/ucode/ucode_utils.c
new file mode 100644
index 0000000000..48198a16e9
--- /dev/null
+++ b/usr/src/common/ucode/ucode_utils.c
@@ -0,0 +1,169 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License (the "License").
+ * You may not use this file except in compliance with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+
+/*
+ * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <sys/types.h>
+#include <sys/ucode.h>
+#ifdef _KERNEL
+#include <sys/systm.h>
+#else
+#include <strings.h>
+#endif
+
+/*
+ * Refer to
+ * Intel 64 and IA-32 Architectures Software Developers's Manual
+ * Chapter 9.11 Microcode Update Facilities
+ * for details.
+ */
+
+/*
+ * Validates the microcode header.
+ * Returns EM_OK on success, EM_HEADER on failure.
+ */
+ucode_errno_t
+ucode_header_validate(ucode_header_t *uhp)
+{
+ uint32_t header_size, body_size, total_size;
+
+ if (uhp == NULL)
+ return (EM_HEADER);
+
+ /*
+ * The only header version number supported is 1.
+ */
+ if (uhp->uh_header_ver != 0x1)
+ return (EM_HEADER);
+
+ header_size = UCODE_HEADER_SIZE;
+ total_size = UCODE_TOTAL_SIZE(uhp->uh_total_size);
+ body_size = UCODE_BODY_SIZE(uhp->uh_body_size);
+
+ /*
+ * The body size field of the microcode code header specifies the size
+ * of the encrypted data section, its value must be a multiple of the
+ * size of DWORD. The total size field must be in multiples of 1K
+ * bytes.
+ */
+ if ((body_size % sizeof (int)) ||
+ (total_size < (header_size + body_size)) ||
+ (total_size % UCODE_KB(1)))
+
+ return (EM_HEADER);
+
+ /*
+ * Sanity check to avoid reading bogus files
+ */
+ if (total_size < UCODE_MIN_SIZE || total_size > UCODE_MAX_SIZE)
+ return (EM_HEADER);
+
+ /*
+ * If there is extended signature table, total_size is the sum of
+ * header_size
+ * body_size
+ * sizeof (struct ucode_ext_table)
+ * n * sizeof (struct ucode_ext_sig)
+ * where n is indicated by uet_count in struct ucode_ext_table.
+ */
+ if (total_size > (header_size + body_size)) {
+ if ((total_size - body_size - header_size -
+ UCODE_EXT_TABLE_SIZE) % UCODE_EXT_SIG_SIZE) {
+
+ return (EM_HEADER);
+ }
+ }
+
+ return (EM_OK);
+}
+
+/*
+ * Returns checksum.
+ */
+uint32_t
+ucode_checksum(uint32_t sum, uint32_t size, uint8_t *code)
+{
+ int i;
+ uint32_t *lcode = (uint32_t *)(intptr_t)code;
+
+ i = size >> 2;
+ while (i--)
+ sum += lcode[i];
+
+ return (sum);
+}
+
+ucode_errno_t
+ucode_validate(uint8_t *ucodep, int size)
+{
+ uint32_t header_size = UCODE_HEADER_SIZE;
+ int remaining;
+
+ if (ucodep == NULL || size <= 0)
+ return (EM_INVALIDARG);
+
+ for (remaining = size; remaining > 0; ) {
+ uint32_t total_size, body_size, ext_size;
+ ucode_header_t *uhp;
+ uint8_t *curbuf = &ucodep[size - remaining];
+ ucode_errno_t rc;
+
+ uhp = (ucode_header_t *)(intptr_t)curbuf;
+
+ if ((rc = ucode_header_validate(uhp)) != EM_OK)
+ return (rc);
+
+ total_size = UCODE_TOTAL_SIZE(uhp->uh_total_size);
+
+ if (ucode_checksum(0, total_size, curbuf))
+ return (EM_CHECKSUM);
+
+ body_size = UCODE_BODY_SIZE(uhp->uh_body_size);
+ ext_size = total_size - (header_size + body_size);
+
+ if (ext_size > 0) {
+ uint32_t i;
+
+ if (ucode_checksum(0, ext_size,
+ &curbuf[header_size + body_size])) {
+ return (EM_CHECKSUM);
+ }
+
+ ext_size -= UCODE_EXT_TABLE_SIZE;
+ for (i = 0; i < ext_size / UCODE_EXT_SIG_SIZE; i++) {
+ if (ucode_checksum(0, UCODE_EXT_SIG_SIZE,
+ &curbuf[total_size - ext_size +
+ i * UCODE_EXT_SIG_SIZE])) {
+
+ return (EM_CHECKSUM);
+ }
+ }
+ }
+
+ remaining -= total_size;
+ }
+ return (EM_OK);
+}
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