PSARC 2005/483 SMBIOS Support for Solaris

6313638 SMBIOS Support for Solaris
6230033 prtdiag should be implemented for Solaris x86
6313668 bmc driver should not have its own private smbios reader
6313670 post_startup_mmu_initialization() is useless and can be deleted

1 files changed, 204 insertions, 0 deletions

diff --git a/usr/src/lib/libsmbios/common/smb_lib.c b/usr/src/lib/libsmbios/common/smb_lib.c
new file mode 100644
index 0000000000..c8bae93fa3
--- /dev/null
+++ b/usr/src/lib/libsmbios/common/smb_lib.c
@@ -0,0 +1,204 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (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 2005 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/smbios_impl.h>
+#include <sys/sysmacros.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include <limits.h>
+#include <unistd.h>
+#include <strings.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <fcntl.h>
+
+#pragma init(smb_init)
+static void
+smb_init(void)
+{
+	_smb_debug = getenv("SMB_DEBUG") != NULL;
+}
+
+static smbios_hdl_t *
+smb_fileopen(int fd, int version, int flags, int *errp)
+{
+	smbios_hdl_t *shp = NULL;
+	smbios_entry_t ep;
+	void *stbuf;
+	ssize_t n;
+
+	if ((n = pread64(fd, &ep, sizeof (ep), 0)) != sizeof (ep))
+		return (smb_open_error(shp, errp, n < 0 ? errno : ESMB_NOHDR));
+
+	if (strncmp(ep.smbe_eanchor, SMB_ENTRY_EANCHOR, SMB_ENTRY_EANCHORLEN))
+		return (smb_open_error(shp, errp, ESMB_HEADER));
+
+	if ((stbuf = smb_alloc(ep.smbe_stlen)) == NULL)
+		return (smb_open_error(shp, errp, ESMB_NOMEM));
+
+	if ((n = pread64(fd, stbuf, ep.smbe_stlen,
+	    (off64_t)ep.smbe_staddr)) != ep.smbe_stlen) {
+		smb_free(stbuf, ep.smbe_stlen);
+		return (smb_open_error(shp, errp, n < 0 ? errno : ESMB_NOSTAB));
+	}
+
+	shp = smbios_bufopen(&ep, stbuf, ep.smbe_stlen, version, flags, errp);
+
+	if (shp != NULL)
+		shp->sh_flags |= SMB_FL_BUFALLOC;
+	else
+		smb_free(stbuf, ep.smbe_stlen);
+
+	return (shp);
+}
+
+static smbios_hdl_t *
+smb_biosopen(int fd, int version, int flags, int *errp)
+{
+	smbios_hdl_t *shp = NULL;
+	size_t pgsize, pgmask, pgoff;
+	void *stbuf, *bios, *p, *q;
+	smbios_entry_t ep;
+
+	bios = mmap(NULL, SMB_RANGE_LIMIT - SMB_RANGE_START + 1,
+	    PROT_READ, MAP_SHARED, fd, (uint32_t)SMB_RANGE_START);
+
+	if (bios == MAP_FAILED)
+		return (smb_open_error(shp, errp, ESMB_MAPDEV));
+
+	q = (void *)((uintptr_t)bios + SMB_RANGE_LIMIT - SMB_RANGE_START + 1);
+
+	for (p = bios; p < q; p = (void *)((uintptr_t)p + 16)) {
+		if (strncmp(p, SMB_ENTRY_EANCHOR, SMB_ENTRY_EANCHORLEN) == 0)
+			break;
+	}
+
+	if (p >= q) {
+		(void) munmap(bios, SMB_RANGE_LIMIT - SMB_RANGE_START + 1);
+		return (smb_open_error(NULL, errp, ESMB_NOTFOUND));
+	}
+
+	bcopy(p, &ep, sizeof (smbios_entry_t));
+	(void) munmap(bios, SMB_RANGE_LIMIT - SMB_RANGE_START + 1);
+
+	pgsize = getpagesize();
+	pgmask = ~(pgsize - 1);
+	pgoff = ep.smbe_staddr & ~pgmask;
+
+	bios = mmap(NULL, ep.smbe_stlen + pgoff,
+	    PROT_READ, MAP_SHARED, fd, ep.smbe_staddr & pgmask);
+
+	if (bios == MAP_FAILED)
+		return (smb_open_error(shp, errp, ESMB_MAPDEV));
+
+	if ((stbuf = smb_alloc(ep.smbe_stlen)) == NULL) {
+		(void) munmap(bios, ep.smbe_stlen + pgoff);
+		return (smb_open_error(shp, errp, ESMB_NOMEM));
+	}
+
+	bcopy((char *)bios + pgoff, stbuf, ep.smbe_stlen);
+	(void) munmap(bios, ep.smbe_stlen + pgoff);
+	shp = smbios_bufopen(&ep, stbuf, ep.smbe_stlen, version, flags, errp);
+
+	if (shp != NULL)
+		shp->sh_flags |= SMB_FL_BUFALLOC;
+	else
+		smb_free(stbuf, ep.smbe_stlen);
+
+	return (shp);
+}
+
+smbios_hdl_t *
+smbios_fdopen(int fd, int version, int flags, int *errp)
+{
+	struct stat64 st1, st2;
+
+	if (stat64(SMB_BIOS_DEVICE, &st1) == 0 && fstat64(fd, &st2) == 0 &&
+	    S_ISCHR(st2.st_mode) && st1.st_rdev == st2.st_rdev)
+		return (smb_biosopen(fd, version, flags, errp));
+	else
+		return (smb_fileopen(fd, version, flags, errp));
+}
+
+smbios_hdl_t *
+smbios_open(const char *file, int version, int flags, int *errp)
+{
+	smbios_hdl_t *shp;
+	int fd;
+
+	if ((fd = open64(file ? file : SMB_SMBIOS_DEVICE, O_RDONLY)) == -1) {
+		if ((errno == ENOENT || errno == ENXIO) &&
+		    (file == NULL || strcmp(file, SMB_SMBIOS_DEVICE) == 0))
+			errno = ESMB_NOTFOUND;
+		return (smb_open_error(NULL, errp, errno));
+	}
+
+	shp = smbios_fdopen(fd, version, flags, errp);
+	(void) close(fd);
+	return (shp);
+}
+
+static int
+smbios_xwrite(smbios_hdl_t *shp, int fd, const void *buf, size_t buflen)
+{
+	ssize_t resid = buflen;
+	ssize_t len;
+
+	while (resid != 0) {
+		if ((len = write(fd, buf, resid)) <= 0)
+			return (smb_set_errno(shp, errno));
+		resid -= len;
+		buf = (uchar_t *)buf + len;
+	}
+
+	return (0);
+}
+
+int
+smbios_write(smbios_hdl_t *shp, int fd)
+{
+	smbios_entry_t ep;
+	off64_t off = lseek64(fd, 0, SEEK_CUR) + P2ROUNDUP(sizeof (ep), 16);
+
+	if (off > UINT32_MAX)
+		return (smb_set_errno(shp, EOVERFLOW));
+
+	bcopy(&shp->sh_ent, &ep, sizeof (ep));
+	ep.smbe_staddr = (uint32_t)off;
+	smbios_checksum(shp, &ep);
+
+	if (smbios_xwrite(shp, fd, &ep, sizeof (ep)) == -1 ||
+	    lseek64(fd, off, SEEK_SET) != off ||
+	    smbios_xwrite(shp, fd, shp->sh_buf, shp->sh_buflen) == -1)
+		return (-1);
+
+	return (0);
+}