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Diffstat (limited to 'contrib/syslinux/syslinux-4.03/com32/sysdump/dmi.c')
-rw-r--r--contrib/syslinux/syslinux-4.03/com32/sysdump/dmi.c126
1 files changed, 0 insertions, 126 deletions
diff --git a/contrib/syslinux/syslinux-4.03/com32/sysdump/dmi.c b/contrib/syslinux/syslinux-4.03/com32/sysdump/dmi.c
deleted file mode 100644
index be4cce4..0000000
--- a/contrib/syslinux/syslinux-4.03/com32/sysdump/dmi.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Dump DMI information in a way hopefully compatible with dmidecode
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include "sysdump.h"
-#include "backend.h"
-
-struct dmi_header {
- char signature[5];
- uint8_t csum;
- uint16_t tbllen;
- uint32_t tbladdr;
- uint16_t nstruc;
- uint8_t revision;
- uint8_t reserved;
-};
-
-struct smbios_header {
- char signature[4];
- uint8_t csum;
- uint8_t len;
- uint8_t major;
- uint8_t minor;
- uint16_t maxsize;
- uint8_t revision;
- uint8_t fmt[5];
-
- struct dmi_header dmi;
-};
-
-static uint8_t checksum(const void *buf, size_t len)
-{
- const uint8_t *p = buf;
- uint8_t csum = 0;
-
- while (len--)
- csum += *p++;
-
- return csum;
-}
-
-static bool is_old_dmi(size_t dptr)
-{
- const struct dmi_header *dmi = (void *)dptr;
-
- return !memcmp(dmi->signature, "_DMI_", 5) &&
- !checksum(dmi, 0x0f);
- return false;
-}
-
-static bool is_smbios(size_t dptr)
-{
- const struct smbios_header *smb = (void *)dptr;
-
- return !memcmp(smb->signature, "_SM_", 4) &&
- !checksum(smb, smb->len) &&
- is_old_dmi(dptr+16);
-}
-
-static void dump_smbios(struct backend *be, size_t dptr)
-{
- const struct smbios_header *smb = (void *)dptr;
- struct smbios_header smx = *smb;
- char filename[32];
-
- snprintf(filename, sizeof filename, "dmi/%05x.%08x",
- dptr, smb->dmi.tbladdr);
- cpio_hdr(be, MODE_FILE, smb->dmi.tbllen + 32, filename);
-
- /*
- * Adjust the address of the smbios table to be 32, to
- * make dmidecode happy. The checksum on the smbios table is unchanged,
- * since it includes the checksum on the dmi table.
- */
- smx.dmi.tbladdr = sizeof smx;
- smx.dmi.csum -= checksum(&smx.dmi, 0x0f);
-
- write_data(be, &smx, sizeof smx);
- write_data(be, (const void *)smb->dmi.tbladdr, smb->dmi.tbllen);
-}
-
-static void dump_old_dmi(struct backend *be, size_t dptr)
-{
- const struct dmi_header *dmi = (void *)dptr;
- struct fake {
- struct dmi_header dmi;
- char pad[16];
- } fake;
- char filename[32];
-
- snprintf(filename, sizeof filename, "dmi/%05x.%08x",
- dptr, dmi->tbladdr);
- cpio_hdr(be, MODE_FILE, dmi->tbllen + 32, filename);
-
- /*
- * Adjust the address of the smbios table to be 32, to
- * make dmidecode happy.
- */
- fake.dmi = *dmi;
- memset(&fake.pad, 0, sizeof fake.pad);
- fake.dmi.tbladdr = sizeof fake;
- fake.dmi.csum -= checksum(&fake.dmi, 0x0f);
-
- write_data(be, &fake, sizeof fake);
- write_data(be, (const void *)dmi->tbladdr, dmi->tbllen);
-}
-
-void dump_dmi(struct backend *be)
-{
- size_t dptr;
-
- cpio_mkdir(be, "dmi");
-
- /* Search for _SM_ or _DMI_ structure */
- for (dptr = 0xf0000 ; dptr < 0x100000 ; dptr += 16) {
- if (is_smbios(dptr)) {
- dump_smbios(be, dptr);
- dptr += 16; /* Skip the subsequent DMI header */
- } else if (is_old_dmi(dptr)) {
- dump_old_dmi(be, dptr);
- }
- }
-}