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-rw-r--r--NEWS16
-rw-r--r--dmidecode.c245
-rw-r--r--dmioem.c502
-rw-r--r--dmiopt.c5
-rw-r--r--dmiopt.h1
-rw-r--r--man/dmidecode.88
-rw-r--r--util.c69
-rw-r--r--util.h1
-rw-r--r--version.h2
9 files changed, 703 insertions, 146 deletions
diff --git a/NEWS b/NEWS
index b470da5..504e3fb 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,17 @@
+Version 3.5 (Tue Mar 14 2023)
+ - Decode HPE OEM records 216, 224, 230, 238 and 242.
+ - Fortify entry point length checks.
+ - Add a --no-quirks option.
+ - Drop the CPUID exception list.
+ - Do not let --dump-bin overwrite an existing file.
+ - Ensure /dev/mem is a character device file.
+ - Bug fixes:
+ Fix segmentation fault in HPE OEM record 240
+ - Minor improvements:
+ Typo fixes
+ Write the whole dump file at once
+ Fix a build warning when USE_MMAP isn't set
+
Version 3.4 (Mon Jun 27 2022)
- Support for SMBIOS 3.4.0. This includes new memory device types, new
processor upgrades, new slot types and characteristics, decoding of memory
@@ -7,7 +21,7 @@ Version 3.4 (Mon Jun 27 2022)
characteristics, new slot characteristics, new on-board device types, new
pointing device interface types, and a new record type (type 45 -
Firmware Inventory Information).
- - Decode HPE OEM records 194, 199, 203, 236, 237, 238 ans 240.
+ - Decode HPE OEM records 194, 199, 203, 236, 237, 238 and 240.
- Bug fixes:
Fix OEM vendor name matching
Fix ASCII filtering of strings
diff --git a/dmidecode.c b/dmidecode.c
index 9aeff91..54f59c1 100644
--- a/dmidecode.c
+++ b/dmidecode.c
@@ -60,6 +60,7 @@
* https://www.dmtf.org/sites/default/files/DSP0270_1.0.1.pdf
*/
+#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
@@ -1105,24 +1106,6 @@ static enum cpuid_type dmi_get_cpuid_type(const struct dmi_header *h)
|| (type >= 0xB6 && type <= 0xB7) /* AMD */
|| (type >= 0xE4 && type <= 0xEF)) /* AMD */
return cpuid_x86_amd;
- else if (type == 0x01 || type == 0x02)
- {
- const char *version = dmi_string(h, data[0x10]);
- /*
- * Some X86-class CPU have family "Other" or "Unknown". In this case,
- * we use the version string to determine if they are known to
- * support the CPUID instruction.
- */
- if (strncmp(version, "Pentium III MMX", 15) == 0
- || strncmp(version, "Intel(R) Core(TM)2", 18) == 0
- || strncmp(version, "Intel(R) Pentium(R)", 19) == 0
- || strcmp(version, "Genuine Intel(R) CPU U1400") == 0)
- return cpuid_x86_intel;
- else if (strncmp(version, "AMD Athlon(TM)", 14) == 0
- || strncmp(version, "AMD Opteron(tm)", 15) == 0
- || strncmp(version, "Dual-Core AMD Opteron(tm)", 25) == 0)
- return cpuid_x86_amd;
- }
/* neither X86 nor ARM */
return cpuid_none;
@@ -2722,7 +2705,7 @@ static void dmi_memory_device_width(const char *attr, u16 code)
/*
* If no memory module is present, width may be 0
*/
- if (code == 0xFFFF || code == 0)
+ if (code == 0xFFFF || (code == 0 && !(opt.flags & FLAG_NO_QUIRKS)))
pr_attr(attr, "Unknown");
else
pr_attr(attr, "%u bits", code);
@@ -4720,7 +4703,7 @@ static void dmi_decode(const struct dmi_header *h, u16 ver)
dmi_memory_device_type_detail(WORD(data + 0x13));
if (h->length < 0x17) break;
/* If no module is present, the remaining fields are irrelevant */
- if (WORD(data + 0x0C) == 0)
+ if (WORD(data + 0x0C) == 0 && !(opt.flags & FLAG_NO_QUIRKS))
break;
dmi_memory_device_speed("Speed", WORD(data + 0x15),
h->length >= 0x5C ?
@@ -5403,12 +5386,12 @@ static void dmi_table_string(const struct dmi_header *h, const u8 *data, u16 ver
switch (key)
{
case 0x015: /* -s bios-revision */
- if (data[key - 1] != 0xFF && data[key] != 0xFF)
- printf("%u.%u\n", data[key - 1], data[key]);
+ if (data[offset - 1] != 0xFF && data[offset] != 0xFF)
+ printf("%u.%u\n", data[offset - 1], data[offset]);
break;
case 0x017: /* -s firmware-revision */
- if (data[key - 1] != 0xFF && data[key] != 0xFF)
- printf("%u.%u\n", data[key - 1], data[key]);
+ if (data[offset - 1] != 0xFF && data[offset] != 0xFF)
+ printf("%u.%u\n", data[offset - 1], data[offset]);
break;
case 0x108:
dmi_system_uuid(NULL, NULL, data + offset, ver);
@@ -5427,11 +5410,65 @@ static void dmi_table_string(const struct dmi_header *h, const u8 *data, u16 ver
}
}
-static void dmi_table_dump(const u8 *buf, u32 len)
+static int dmi_table_dump(const u8 *ep, u32 ep_len, const u8 *table,
+ u32 table_len)
{
+ int fd;
+ FILE *f;
+
+ fd = open(opt.dumpfile, O_WRONLY|O_CREAT|O_EXCL, 0666);
+ if (fd == -1)
+ {
+ fprintf(stderr, "%s: ", opt.dumpfile);
+ perror("open");
+ return -1;
+ }
+
+ f = fdopen(fd, "wb");
+ if (!f)
+ {
+ fprintf(stderr, "%s: ", opt.dumpfile);
+ perror("fdopen");
+ return -1;
+ }
+
+ if (!(opt.flags & FLAG_QUIET))
+ pr_comment("Writing %d bytes to %s.", ep_len, opt.dumpfile);
+ if (fwrite(ep, ep_len, 1, f) != 1)
+ {
+ fprintf(stderr, "%s: ", opt.dumpfile);
+ perror("fwrite");
+ goto err_close;
+ }
+
+ if (fseek(f, 32, SEEK_SET) != 0)
+ {
+ fprintf(stderr, "%s: ", opt.dumpfile);
+ perror("fseek");
+ goto err_close;
+ }
+
if (!(opt.flags & FLAG_QUIET))
- pr_comment("Writing %d bytes to %s.", len, opt.dumpfile);
- write_dump(32, len, buf, opt.dumpfile, 0);
+ pr_comment("Writing %d bytes to %s.", table_len, opt.dumpfile);
+ if (fwrite(table, table_len, 1, f) != 1)
+ {
+ fprintf(stderr, "%s: ", opt.dumpfile);
+ perror("fwrite");
+ goto err_close;
+ }
+
+ if (fclose(f))
+ {
+ fprintf(stderr, "%s: ", opt.dumpfile);
+ perror("fclose");
+ return -1;
+ }
+
+ return 0;
+
+err_close:
+ fclose(f);
+ return -1;
}
static void dmi_table_decode(u8 *buf, u32 len, u16 num, u16 ver, u32 flags)
@@ -5544,7 +5581,7 @@ static void dmi_table_decode(u8 *buf, u32 len, u16 num, u16 ver, u32 flags)
}
/* Fixup a common mistake */
- if (h.type == 34)
+ if (h.type == 34 && !(opt.flags & FLAG_NO_QUIRKS))
dmi_fixup_type_34(&h, display);
if (display)
@@ -5585,8 +5622,9 @@ static void dmi_table_decode(u8 *buf, u32 len, u16 num, u16 ver, u32 flags)
}
}
-static void dmi_table(off_t base, u32 len, u16 num, u32 ver, const char *devmem,
- u32 flags)
+/* Allocates a buffer for the table, must be freed by the caller */
+static u8 *dmi_table_get(off_t base, u32 *len, u16 num, u32 ver,
+ const char *devmem, u32 flags)
{
u8 *buf;
@@ -5605,7 +5643,7 @@ static void dmi_table(off_t base, u32 len, u16 num, u32 ver, const char *devmem,
{
if (num)
pr_info("%u structures occupying %u bytes.",
- num, len);
+ num, *len);
if (!(opt.flags & FLAG_FROM_DUMP))
pr_info("Table at 0x%08llX.",
(unsigned long long)base);
@@ -5623,19 +5661,19 @@ static void dmi_table(off_t base, u32 len, u16 num, u32 ver, const char *devmem,
* would be the result of the kernel truncating the table on
* parse error.
*/
- size_t size = len;
+ size_t size = *len;
buf = read_file(flags & FLAG_NO_FILE_OFFSET ? 0 : base,
&size, devmem);
- if (!(opt.flags & FLAG_QUIET) && num && size != (size_t)len)
+ if (!(opt.flags & FLAG_QUIET) && num && size != (size_t)*len)
{
fprintf(stderr, "Wrong DMI structures length: %u bytes "
"announced, only %lu bytes available.\n",
- len, (unsigned long)size);
+ *len, (unsigned long)size);
}
- len = size;
+ *len = size;
}
else
- buf = mem_chunk(base, len, devmem);
+ buf = mem_chunk(base, *len, devmem);
if (buf == NULL)
{
@@ -5645,15 +5683,9 @@ static void dmi_table(off_t base, u32 len, u16 num, u32 ver, const char *devmem,
fprintf(stderr,
"Try compiling dmidecode with -DUSE_MMAP.\n");
#endif
- return;
}
- if (opt.flags & FLAG_DUMP_BIN)
- dmi_table_dump(buf, len);
- else
- dmi_table_decode(buf, len, num, ver >> 8, flags);
-
- free(buf);
+ return buf;
}
@@ -5688,8 +5720,9 @@ static void overwrite_smbios3_address(u8 *buf)
static int smbios3_decode(u8 *buf, const char *devmem, u32 flags)
{
- u32 ver;
+ u32 ver, len;
u64 offset;
+ u8 *table;
/* Don't let checksum run beyond the buffer */
if (buf[0x06] > 0x20)
@@ -5700,7 +5733,8 @@ static int smbios3_decode(u8 *buf, const char *devmem, u32 flags)
return 0;
}
- if (!checksum(buf, buf[0x06]))
+ if (buf[0x06] < 0x18
+ || !checksum(buf, buf[0x06]))
return 0;
ver = (buf[0x07] << 16) + (buf[0x08] << 8) + buf[0x09];
@@ -5715,8 +5749,12 @@ static int smbios3_decode(u8 *buf, const char *devmem, u32 flags)
return 0;
}
- dmi_table(((off_t)offset.h << 32) | offset.l,
- DWORD(buf + 0x0C), 0, ver, devmem, flags | FLAG_STOP_AT_EOT);
+ /* Maximum length, may get trimmed */
+ len = DWORD(buf + 0x0C);
+ table = dmi_table_get(((off_t)offset.h << 32) | offset.l, &len, 0, ver,
+ devmem, flags | FLAG_STOP_AT_EOT);
+ if (table == NULL)
+ return 1;
if (opt.flags & FLAG_DUMP_BIN)
{
@@ -5725,18 +5763,47 @@ static int smbios3_decode(u8 *buf, const char *devmem, u32 flags)
memcpy(crafted, buf, 32);
overwrite_smbios3_address(crafted);
- if (!(opt.flags & FLAG_QUIET))
- pr_comment("Writing %d bytes to %s.", crafted[0x06],
- opt.dumpfile);
- write_dump(0, crafted[0x06], crafted, opt.dumpfile, 1);
+ dmi_table_dump(crafted, crafted[0x06], table, len);
}
+ else
+ {
+ dmi_table_decode(table, len, 0, ver >> 8,
+ flags | FLAG_STOP_AT_EOT);
+ }
+
+ free(table);
return 1;
}
+static void dmi_fixup_version(u16 *ver)
+{
+ /* Some BIOS report weird SMBIOS version, fix that up */
+ switch (*ver)
+ {
+ case 0x021F:
+ case 0x0221:
+ if (!(opt.flags & FLAG_QUIET))
+ fprintf(stderr,
+ "SMBIOS version fixup (2.%d -> 2.%d).\n",
+ *ver & 0xFF, 3);
+ *ver = 0x0203;
+ break;
+ case 0x0233:
+ if (!(opt.flags & FLAG_QUIET))
+ fprintf(stderr,
+ "SMBIOS version fixup (2.%d -> 2.%d).\n",
+ 51, 6);
+ *ver = 0x0206;
+ break;
+ }
+}
+
static int smbios_decode(u8 *buf, const char *devmem, u32 flags)
{
- u16 ver;
+ u16 ver, num;
+ u32 len;
+ u8 *table;
/* Don't let checksum run beyond the buffer */
if (buf[0x05] > 0x20)
@@ -5747,37 +5814,30 @@ static int smbios_decode(u8 *buf, const char *devmem, u32 flags)
return 0;
}
- if (!checksum(buf, buf[0x05])
+ /*
+ * The size of this structure is 0x1F bytes, but we also accept value
+ * 0x1E due to a mistake in SMBIOS specification version 2.1.
+ */
+ if (buf[0x05] < 0x1E
+ || !checksum(buf, buf[0x05])
|| memcmp(buf + 0x10, "_DMI_", 5) != 0
|| !checksum(buf + 0x10, 0x0F))
return 0;
ver = (buf[0x06] << 8) + buf[0x07];
- /* Some BIOS report weird SMBIOS version, fix that up */
- switch (ver)
- {
- case 0x021F:
- case 0x0221:
- if (!(opt.flags & FLAG_QUIET))
- fprintf(stderr,
- "SMBIOS version fixup (2.%d -> 2.%d).\n",
- ver & 0xFF, 3);
- ver = 0x0203;
- break;
- case 0x0233:
- if (!(opt.flags & FLAG_QUIET))
- fprintf(stderr,
- "SMBIOS version fixup (2.%d -> 2.%d).\n",
- 51, 6);
- ver = 0x0206;
- break;
- }
+ if (!(opt.flags & FLAG_NO_QUIRKS))
+ dmi_fixup_version(&ver);
if (!(opt.flags & FLAG_QUIET))
pr_info("SMBIOS %u.%u present.",
ver >> 8, ver & 0xFF);
- dmi_table(DWORD(buf + 0x18), WORD(buf + 0x16), WORD(buf + 0x1C),
- ver << 8, devmem, flags);
+ /* Maximum length, may get trimmed */
+ len = WORD(buf + 0x16);
+ num = WORD(buf + 0x1C);
+ table = dmi_table_get(DWORD(buf + 0x18), &len, num, ver << 8,
+ devmem, flags);
+ if (table == NULL)
+ return 1;
if (opt.flags & FLAG_DUMP_BIN)
{
@@ -5786,27 +5846,39 @@ static int smbios_decode(u8 *buf, const char *devmem, u32 flags)
memcpy(crafted, buf, 32);
overwrite_dmi_address(crafted + 0x10);
- if (!(opt.flags & FLAG_QUIET))
- pr_comment("Writing %d bytes to %s.", crafted[0x05],
- opt.dumpfile);
- write_dump(0, crafted[0x05], crafted, opt.dumpfile, 1);
+ dmi_table_dump(crafted, crafted[0x05], table, len);
+ }
+ else
+ {
+ dmi_table_decode(table, len, num, ver, flags);
}
+ free(table);
+
return 1;
}
static int legacy_decode(u8 *buf, const char *devmem, u32 flags)
{
+ u16 ver, num;
+ u32 len;
+ u8 *table;
+
if (!checksum(buf, 0x0F))
return 0;
+ ver = ((buf[0x0E] & 0xF0) << 4) + (buf[0x0E] & 0x0F);
if (!(opt.flags & FLAG_QUIET))
pr_info("Legacy DMI %u.%u present.",
buf[0x0E] >> 4, buf[0x0E] & 0x0F);
- dmi_table(DWORD(buf + 0x08), WORD(buf + 0x06), WORD(buf + 0x0C),
- ((buf[0x0E] & 0xF0) << 12) + ((buf[0x0E] & 0x0F) << 8),
- devmem, flags);
+ /* Maximum length, may get trimmed */
+ len = WORD(buf + 0x06);
+ num = WORD(buf + 0x0C);
+ table = dmi_table_get(DWORD(buf + 0x08), &len, num, ver << 8,
+ devmem, flags);
+ if (table == NULL)
+ return 1;
if (opt.flags & FLAG_DUMP_BIN)
{
@@ -5815,11 +5887,14 @@ static int legacy_decode(u8 *buf, const char *devmem, u32 flags)
memcpy(crafted, buf, 16);
overwrite_dmi_address(crafted);
- if (!(opt.flags & FLAG_QUIET))
- pr_comment("Writing %d bytes to %s.", 0x0F,
- opt.dumpfile);
- write_dump(0, 0x0F, crafted, opt.dumpfile, 1);
+ dmi_table_dump(crafted, 0x0F, table, len);
}
+ else
+ {
+ dmi_table_decode(table, len, num, ver, flags);
+ }
+
+ free(table);
return 1;
}
diff --git a/dmioem.c b/dmioem.c
index c26fff9..dc4b857 100644
--- a/dmioem.c
+++ b/dmioem.c
@@ -198,13 +198,14 @@ static void dmi_hp_240_attr(u64 defined, u64 set)
};
unsigned int i;
- pr_attr("Attributes Defined/Set", NULL);
+ pr_list_start("Attributes Defined/Set", NULL);
for (i = 0; i < ARRAY_SIZE(attributes); i++)
{
if (!(defined.l & (1UL << i)))
continue;
- pr_subattr(attributes[i], "%s", set.l & (1UL << i) ? "Yes" : "No");
+ pr_list_item("%s: %s", attributes[i], set.l & (1UL << i) ? "Yes" : "No");
}
+ pr_list_end();
}
static void dmi_hp_203_assoc_hndl(const char *fname, u16 num)
@@ -282,7 +283,7 @@ static void dmi_hp_203_devloc(const char *fname, unsigned int code)
"Rear USB Port",
"Internal USB",
"Internal SD Card",
- "Internal Virutal USB (Embedded NAND)",
+ "Internal Virtual USB (Embedded NAND)",
"Embedded SATA Port",
"Embedded Smart Array",
"PCI Slot",
@@ -299,6 +300,274 @@ static void dmi_hp_203_devloc(const char *fname, unsigned int code)
pr_attr(fname, "%s", str);
}
+static void dmi_hp_216_fw_type(u16 code)
+{
+ const char *str = "Reserved";
+ static const char * const type[] = {
+ "Reserved", /* 0x00 */
+ "System ROM",
+ "Redundant System ROM",
+ "System ROM Bootblock",
+ "Power Management Controller Firmware",
+ "Power Management Controller Firmware Bootloader",
+ "SL Chassis Firmware",
+ "SL Chassis Firmware Bootloader",
+ "Hardware PAL/CPLD",
+ "SPS Firmware (ME Firmware)",
+ "SL Chassis PAL/CPLD",
+ "Compatibility Support Module (CSM)",
+ "APML",
+ "Smart Storage Battery (Megacell) Firmware",
+ "Trusted Module (TPM or TCM) Firmware Version",
+ "NVMe Backplane Firmware",
+ "Intelligent Provisioning",
+ "SPI Descriptor Version",
+ "Innovation Engine Firmware (IE Firmware)",
+ "UMB Backplane Firmware",
+ "Reserved", /* 0x14 */
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved", /* 0x1F */
+ "EL Chassis Abstraction Revision",
+ "EL Chassis Firmware Revision",
+ "EL Chassis PAL/CPLD",
+ "EL Cartride Abstraction Revision",
+ "Reserved", /* 0x24 */
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved", /* 0x2F */
+ "Embedded Video Controller",
+ "PCIe Riser Programmable Logic Device",
+ "PCIe cards that contain a CPLD",
+ "Intel NVMe VROC",
+ "Intel SATA VROC",
+ "Intel SPS Firmware",
+ "Secondary System Programmable Logic Device",
+ "CPU MEZZ Programmable Logic Device", /* 0x37 */
+ "Intel Artic Sound -M Accelerator Models Firmware",
+ "Ampere System Control Processor (SCP – PMPro+SMPro)",
+ "Intel CFR information", /* 0x3A */
+ };
+
+ if (code < ARRAY_SIZE(type))
+ str = type[code];
+
+ pr_attr("Firmware Type", "%s", str);
+}
+
+static void dmi_hp_216_version(u8 format, u8 *data)
+{
+ const char * const name = "Version Data";
+ const char * const reserved = "Reserved";
+ int gen;
+
+ gen = dmi_hpegen(dmi_product);
+
+ switch (format) {
+ case 0:
+ pr_attr(name, "No Version Data");
+ break;
+ case 1:
+ pr_attr(name, "%c.%d.%d", data[0] & (1 << 7) ? 'B' : 'R',
+ data[0] & 0x7, data[1] & 0x7);
+ break;
+ case 2:
+ pr_attr(name, "%d.%d", data[0] >> 4, data[0] & 0x0f);
+ break;
+ case 4:
+ pr_attr(name, "%d.%d.%d", data[0] >> 4, data[0] & 0x0f, data[1] & 0x7f);
+ break;
+ case 5:
+ if (gen == G9) {
+ pr_attr(name, "%d.%d.%d", data[0] >> 4, data[0] & 0x0f, data[1] & 0x7f);
+ } else if (gen == G10 || gen == G10P) {
+ pr_attr(name, "%d.%d.%d.%d", data[1] & 0x0f, data[3] & 0x0f,
+ data[5] & 0x0f, data[6] & 0x0f);
+ } else {
+ pr_attr(name, "%s", reserved);
+ }
+ break;
+ case 6:
+ pr_attr(name, "%d.%d", data[1], data[0]);
+ break;
+ case 7:
+ pr_attr(name, "v%d.%.2d (%.2d/%.2d/%d)", data[0], data[1],
+ data[2], data[3], WORD(data + 4));
+ break;
+ case 8:
+ pr_attr(name, "%d.%d", WORD(data + 4), WORD(data));
+ break;
+ case 9:
+ pr_attr(name, "%d.%d.%d", data[0], data[1], WORD(data + 2));
+ break;
+ case 10:
+ pr_attr(name, "%d.%d.%d Build %d", data[0], data[1], data[2], data[3]);
+ break;
+ case 11:
+ pr_attr(name, "%d.%d %d", WORD(data + 2), WORD(data), DWORD(data + 4));
+ break;
+ case 12:
+ pr_attr(name, "%d.%d.%d.%d", WORD(data), WORD(data + 2),
+ WORD(data + 4), WORD(data + 6));
+ break;
+ case 13:
+ pr_attr(name, "%d", data[0]);
+ break;
+ case 14:
+ pr_attr(name, "%d.%d.%d.%d", data[0], data[1], data[2], data[3]);
+ break;
+ case 15:
+ pr_attr(name, "%d.%d.%d.%d (%.2d/%.2d/%d)",
+ WORD(data), WORD(data + 2), WORD(data + 4), WORD(data + 6),
+ data[8], data[9], WORD(data + 10));
+ break;
+ case 16:
+ pr_attr(name, "%c%c%c%c.%d%d",
+ data[0], data[1], data[2], data[3], data[4], data[5]);
+ break;
+ case 17:
+ pr_attr(name, "%08X", DWORD(data));
+ break;
+ case 18:
+ pr_attr(name, "%d.%2d", data[0], data[1]);
+ break;
+ case 3: /* fall through */
+ default:
+ pr_attr(name, "%s", reserved);
+ }
+}
+
+static int dmi_hp_224_status(u8 code)
+{
+ static const char * const present[] = {
+ "Not Present", /* 0x00 */
+ "Present/Enabled",
+ "Present/Disabled",
+ "Reserved" /* 0x03 */
+ };
+
+ pr_attr("Status", "%s", present[code & 0x03]);
+ if ((code & 0x03) == 0x00)
+ return 0;
+ pr_attr("Option ROM Measuring", "%s", (code & (1 << 2)) ? "Yes" : "No");
+ pr_attr("Hidden", "%s", (code & (1 << 3)) ? "Yes" : "No");
+ return 1;
+}
+
+static void dmi_hp_224_ex_status(u8 status, u8 code)
+{
+ const char *str = "Reserved";
+ static const char * const disable_reason[] = {
+ "Not Specified", /* 0x00 */
+ "User Disabled",
+ "Error Condition",
+ "Reserved" /* 0x03 */
+ };
+ static const char * const error_condition[] = {
+ "Not Specified", /* 0x00 */
+ "Self-Test", /* 0x01 */
+ };
+ if ((status & 0x03) == 0x02)
+ pr_attr("Disable Reason", "%s", disable_reason[code & 0x03]);
+ if ((code & 0x03) == 0x02) {
+ u8 error = (code >> 2) & 0x0f;
+ if (error < ARRAY_SIZE(error_condition))
+ str = error_condition[error];
+ pr_attr("Error Condition", "%s", str);
+ }
+}
+
+static void dmi_hp_224_module_type(u8 code)
+{
+ const char *str = "Reserved";
+ static const char * const type[] = {
+ "Not Specified", /* 0x00 */
+ "TPM 1.2",
+ "TPM 2.0",
+ "Intel PTT fTPM" /* 0x03 */
+ };
+ if ((code & 0x0f) < ARRAY_SIZE(type))
+ str = type[code & 0x0f];
+ pr_attr("Type", "%s", str);
+ pr_attr("Standard Algorithm Supported", "%s", (code & (1 << 4)) ? "Yes" : "No");
+ pr_attr("Chinese Algorithm Supported", "%s", (code & (1 << 5)) ? "Yes" : "No");
+}
+
+static void dmi_hp_224_module_attr(u8 code)
+{
+ static const char * const phys_attr[] = {
+ "Not Specified", /* 0x00 */
+ "Pluggable and Optional",
+ "Pluggable but Standard",
+ "Soldered Down on System Board" /* 0x03 */
+ };
+ static const char * const fips_attr[] = {
+ "Not Specified", /* 0x00 */
+ "Not FIPS Certified",
+ "FIPS Certified",
+ "Reserved" /* 0x03 */
+ };
+ pr_attr("Trusted Module Attributes", "%s", phys_attr[code & 0x3]);
+ pr_attr("FIPS Certification", "%s", fips_attr[((code >> 2) & 0x03)]);
+}
+
+static void dmi_hp_224_chipid(u16 code)
+{
+ const char *str = "Reserved";
+ static const char * const chipid[] = {
+ "None", /* 0x00 */
+ "STMicroGen10 TPM",
+ "Intel firmware TPM (PTT)",
+ "Nationz TPM",
+ "STMicroGen10 Plus TPM",
+ "STMicroGen11 TPM", /* 0x05 */
+ };
+ if ((code & 0xff) < ARRAY_SIZE(chipid))
+ str = chipid[code & 0xff];
+ pr_attr("Chip Identifier", "%s", str);
+}
+
+static void dmi_hp_230_method_bus_seg_addr(u8 code, u8 bus_seg, u8 addr)
+{
+ const char *str = "Reserved";
+ static const char * const method[] = {
+ "Not Available", /* 0x00 */
+ "IPMI I2C",
+ "iLO",
+ "Chassis Manager", /* 0x03 */
+ };
+ if (code < ARRAY_SIZE(method))
+ str = method[code];
+ pr_attr("Access Method", "%s", str);
+ if (code == 0 || code >= ARRAY_SIZE(method))
+ return;
+ if (bus_seg != 0xFF)
+ {
+ if (code == 2)
+ pr_attr("I2C Segment Number", "%d", bus_seg);
+ else
+ pr_attr("I2C Bus Number", "%d", bus_seg);
+ }
+ if (addr != 0xFF)
+ pr_attr("I2C Address", "0x%02x", addr >> 1);
+}
+
static void dmi_hp_238_loc(const char *fname, unsigned int code)
{
const char *str = "Reserved";
@@ -308,7 +577,7 @@ static void dmi_hp_238_loc(const char *fname, unsigned int code)
"Rear of Server",
"Embedded internal SD Card",
"iLO USB",
- "HP NAND Controller (USX 2065 or other)",
+ "USB Hub for NAND Controller",
"Reserved",
"Debug Port", /* 0x07 */
};
@@ -350,6 +619,52 @@ static void dmi_hp_238_speed(const char *fname, unsigned int code)
pr_attr(fname, "%s", str);
}
+static void dmi_hp_242_hdd_type(u8 code)
+{
+ const char *str = "Reserved";
+ static const char * const type[] = {
+ "Undetermined", /* 0x00 */
+ "NVMe SSD",
+ "SATA",
+ "SAS",
+ "SATA SSD",
+ "NVMe Manged by VROC/VMD", /* 0x05 */
+ };
+ if (code < ARRAY_SIZE(type))
+ str = type[code];
+
+ pr_attr("Hard Drive Type", "%s", str);
+}
+
+static void dmi_hp_242_form_factor(u8 code)
+{
+ const char *str = "Reserved";
+ static const char * const form[] = {
+ "Reserved", /* 0x00 */
+ "Reserved",
+ "3.5\" form factor",
+ "2.5\" form factor",
+ "1.8\" form factor",
+ "Less than 1.8\" form factor",
+ "mSATA",
+ "M.2",
+ "MicroSSD",
+ "CFast", /* 0x09 */
+ };
+ if (code < ARRAY_SIZE(form))
+ str = form[code];
+
+ pr_attr("Form Factor", "%s", str);
+}
+
+static void dmi_hp_242_speed(const char *attr, u16 speed)
+{
+ if (speed)
+ pr_attr(attr, "%hu Gbit/s", speed);
+ else
+ pr_attr(attr, "%s", "Unknown");
+}
+
static int dmi_decode_hp(const struct dmi_header *h)
{
u8 *data = h->data;
@@ -581,6 +896,51 @@ static int dmi_decode_hp(const struct dmi_header *h)
}
break;
+ case 216:
+ /*
+ * Vendor Specific: Version Indicator Record
+ *
+ * This record is used to allow determining Firmware and CPLD revisions for
+ * components in the system. The goal of this record is to provide a
+ * flexible method to communicate to software and firmware the revisions
+ * of these components. This record replaces much of the functionality of
+ * Record Type 193. OEM SMBIOS Record Type 193 was not scaling well with
+ * the large number of potential CPLD devices, power management controllers,
+ * etc. This record is flexible such that each instance of Type 216
+ * defines one firmware component. This record also includes the string
+ * name for which software should refer to the component. The record
+ * includes both data bytes to indicate the revision and a string value. A
+ * firmware component can implement either or both. If both are supported,
+ * it allows easy display of the revision, but prevents the need for
+ * software/firmware to parse strings when doing comparisons on revisions.
+ * As there is one Type 216 Record per firmware component, the Handle for
+ * the Record can be used to tie firmware components with other OEM SMBIOS
+ * Records in the future if needed (similar to how SMBIOS Type 17 is tied
+ * to other Record Types related to DIMMs)
+ *
+ * Offset | Name | Width | Description
+ * ------------------------------------------
+ * 0x00 | Type | BYTE | 0xD8, Version Indicator Record
+ * 0x01 | Length | BYTE | Length of structure
+ * 0x02 | Handle | WORD | Unique handle
+ * 0x04 | FW Type | WORD | Type of Firmware
+ * 0x06 | FW Name | STRING | Name of Firmware
+ * 0x07 | FW Version | STRING | Firmware Version
+ * 0x08 | Data Format| BYTE | Format of the Version Data
+ * 0x09 |Version Data|12 BYTES| Version Data in Format from field 0x08
+ * 0x15 | Unique ID | WORD | Unique ID for Firmware flash
+ */
+ if (gen < G8) return 0;
+ pr_handle_name("%s Version Indicator", company);
+ if (h->length < 23) break;
+ dmi_hp_216_fw_type(WORD(data + 0x04));
+ pr_attr("Firmware Name String", "%s", dmi_string(h, data[0x06]));
+ pr_attr("Firmware Version String", "%s", dmi_string(h, data[0x07]));
+ dmi_hp_216_version(data[0x08], data + 0x09);
+ if (WORD(data + 0x15))
+ pr_attr("Unique ID", "0x%04x", WORD(data + 0x15));
+ break;
+
case 219:
/*
* Vendor Specific: HPE ProLiant Information
@@ -599,6 +959,64 @@ static int dmi_decode_hp(const struct dmi_header *h)
pr_subattr("UEFI", "%s", feat & 0x1400 ? "Yes" : "No");
break;
+ case 224:
+ /*
+ * Vendor Specific: Trusted Module (TPM or TCM) Status
+ *
+ * Offset | Name | Width | Description
+ * -------------------------------------
+ * 0x00 | Type | BYTE | 0xE0, Trusted Module (TPM or TCM) Status
+ * 0x01 | Length | BYTE | Length of structure
+ * 0x02 | Handle | WORD | Unique handle
+ * 0x04 | Status | BYTE | Status Flag Byte
+ * 0x05 | Ex Stat| BYTE | TPM Extended Status
+ * 0x06 | Type | BYTE | Trusted Module Type
+ * 0x07 | Attrib | BYTE | Trusted Module Attributes
+ * 0x08 | Handle | WORD | Handle to map to Type 216
+ * 0x0A | Chip ID| WORD | Chip Identifier Values
+ */
+ pr_handle_name("%s Trusted Module (TPM or TCM) Status", company);
+ if (h->length < 0x05) break;
+ if (!dmi_hp_224_status(data[0x04]))
+ break;
+ if (h->length < 0x0a) break;
+ dmi_hp_224_ex_status(data[0x04], data[0x05]);
+ dmi_hp_224_module_type(data[0x06]);
+ dmi_hp_224_module_attr(data[0x07]);
+ if (!(opt.flags & FLAG_QUIET))
+ pr_attr("Associated Handle", "0x%04X", WORD(data + 0x8));
+ if (h->length < 0x0c) break;
+ dmi_hp_224_chipid(WORD(data + 0x0a));
+ break;
+
+ case 230:
+ /*
+ * Vendor Specific: Power Supply Information OEM SMBIOS Record
+ *
+ * This record is used to communicate additional Power Supply Information
+ * beyond the Industry Standard System Power Supply (Type 39) Record.
+ *
+ * Offset| Name | Width | Description
+ * -----------------------------------------
+ * 0x00 | Type | BYTE | 0xE6, Power Supply Information Indicator
+ * 0x01 | Length | BYTE | Length of structure
+ * 0x02 | Handle | WORD | Unique handle
+ * 0x04 | Assoc Handle| WORD | Associated Handle (Type 39)
+ * 0x06 | Manufacturer| STRING| Actual third party manufacturer
+ * 0x07 | Revision | STRING| Power Supply Revision Level
+ * 0x08 | FRU Access | BYTE | Power Supply FRU Access Method
+ * 0x09 | I2C Bus Num | BYTE | I2C Bus #. Value based upon context
+ * 0x0A | I2C Address | BYTE | I2C Address
+ */
+ pr_handle_name("%s Power Supply Information", company);
+ if (h->length < 0x0B) break;
+ if (!(opt.flags & FLAG_QUIET))
+ pr_attr("Associated Handle", "0x%04X", WORD(data + 0x4));
+ pr_attr("Manufacturer", "%s", dmi_string(h, data[0x06]));
+ pr_attr("Revision", "%s", dmi_string(h, data[0x07]));
+ dmi_hp_230_method_bus_seg_addr(data[0x08], data[0x09], data[0x0A]);
+ break;
+
case 233:
/*
* Vendor Specific: HPE ProLiant NIC MAC Information
@@ -770,6 +1188,82 @@ static int dmi_decode_hp(const struct dmi_header *h)
pr_attr("Lowest Supported Version", "Not Available");
break;
+ case 242:
+ /*
+ * Vendor Specific: HPE Hard Drive Inventory Record
+ *
+ * This record provides a mechanism for software to gather information for
+ * NVMe and SATA drives that are directly attached to the system. This
+ * record does not contain drive information for drives attached to a HBA
+ * (i.e. a SmartArray controller). This record will only contain information
+ * for a hard drive detected by the BIOS during POST and does not
+ * comprehend a hot plug event after the system has booted.
+ *
+ * Offset | Name | Width | Description
+ * ---------------------------------------
+ * 0x00 | Type | BYTE | 0xF2, HPE Hard Drive Inventory Record
+ * 0x01 | Length | BYTE | Length of structure
+ * 0x02 | Handle | WORD | Unique handle
+ * 0x04 | Hndl Assoc | WORD | Handle to map to Type 203
+ * 0x06 | HDD Type | BYTE | Hard drive type
+ * 0x07 | HDD Uniq ID| QWORD | SATA-> WWID. NVMe -> IEEE Ext Uniq ID.
+ * 0x0F | Capacity | DWORD | Drive Capacity in Mbytes
+ * 0x13 | Hours | 16BYTE| Number of poweron hours
+ * 0x23 | Reserved | BYTE | Reserved
+ * 0x24 | Power | BTYE | Wattage
+ * 0x25 | Form Factor| BYTE | HDD Form Factor
+ * 0x26 | Health | BYTE | Hard Drive Health Status
+ * 0x27 | Serial Num | STRING| NVMe/SATA Serial Number
+ * 0x28 | Model Num | STRING| NVMe/SATA Model Number
+ * 0x29 | FW Rev | STRING| Firmware revision
+ * 0x2A | Location | STRING| Drive location
+ * 0x2B | Crypt Stat | BYTE | Drive encryption status from BIOS
+ * 0x2C | Capacity | QWORD | Hard Drive capacity in bytes
+ * 0x34 | Block Size | DWORD | Logical Block Size in bytes
+ * 0x38 | Rot Speed | WORD | Nominal Rotational Speed (RPM)
+ * 0x3A | Neg Speed | WORD | Current negotiated bus speed
+ * 0x3C | Cap Speed | WORD | Fastest Capable Bus Speed of drive
+ */
+ if (gen < G10) return 0;
+ pr_handle_name("%s ProLiant Hard Drive Inventory Record", company);
+ if (h->length < 0x2C) break;
+ if (!(opt.flags & FLAG_QUIET))
+ pr_attr("Associated Handle", "0x%04X", WORD(data + 0x4));
+ dmi_hp_242_hdd_type(data[0x06]);
+ pr_attr("ID", "%llx", QWORD(data + 0x07));
+ if (h->length < 0x3E)
+ pr_attr("Capacity", "%u MB", DWORD(data + 0x0F));
+ else
+ dmi_print_memory_size("Capacity", QWORD(data + 0x2C), 0);
+ /* NB: Poweron low QWORD good for 2,104,351,365,926,255 years */
+ pr_attr("Poweron", "%ld hours", QWORD(data + 0x13));
+ if (data[0x24])
+ pr_attr("Power Wattage", "%hhu W", data[0x24]);
+ else
+ pr_attr("Power Wattage", "%s", "Unknown");
+ dmi_hp_242_form_factor(data[0x25]);
+ feat = data[0x26];
+ pr_attr("Health Status", "%s", (feat == 0x00) ? "OK" :
+ (feat == 0x01) ? "Warning" :
+ (feat == 0x02) ? "Critical" :
+ (feat == 0xFF) ? "Unknown" : "Reserved");
+ pr_attr("Serial Number", dmi_string(h, data[0x27]));
+ pr_attr("Model Number", dmi_string(h, data[0x28]));
+ pr_attr("Firmware Revision", dmi_string(h, data[0x29]));
+ pr_attr("Location", dmi_string(h, data[0x2A]));
+ feat = data[0x2B];
+ pr_attr("Encryption Status", "%s", (feat == 0) ? "Not Encrypted" :
+ (feat == 1) ? "Encrypted" :
+ (feat == 2) ? "Unknown" :
+ (feat == 3) ? "Not Supported" : "Reserved");
+ if (h->length < 0x3E) break;
+ pr_attr("Block Size", "%u bytes", DWORD(data + 0x34));
+ /* Rotational Speed: 0 -> Not Reported, 1 -> N/A (SSD) */
+ if (data[0x38] > 1)
+ pr_attr("Rotational Speed", "%hhu RPM", data[0x38]);
+ dmi_hp_242_speed("Negotiated Speed", WORD(data + 0x3A));
+ dmi_hp_242_speed("Capable Speed", WORD(data + 0x3C));
+ break;
default:
return 0;
}
diff --git a/dmiopt.c b/dmiopt.c
index d08288f..fa84f22 100644
--- a/dmiopt.c
+++ b/dmiopt.c
@@ -270,6 +270,7 @@ int parse_command_line(int argc, char * const argv[])
{ "dev-mem", required_argument, NULL, 'd' },
{ "help", no_argument, NULL, 'h' },
{ "quiet", no_argument, NULL, 'q' },
+ { "no-quirks", no_argument, NULL, 'Q' },
{ "string", required_argument, NULL, 's' },
{ "type", required_argument, NULL, 't' },
{ "dump", no_argument, NULL, 'u' },
@@ -302,6 +303,9 @@ int parse_command_line(int argc, char * const argv[])
case 'q':
opt.flags |= FLAG_QUIET;
break;
+ case 'Q':
+ opt.flags |= FLAG_NO_QUIRKS;
+ break;
case 's':
if (parse_opt_string(optarg) < 0)
return -1;
@@ -371,6 +375,7 @@ void print_help(void)
" -d, --dev-mem FILE Read memory from device FILE (default: " DEFAULT_MEM_DEV ")\n"
" -h, --help Display this help text and exit\n"
" -q, --quiet Less verbose output\n"
+ " --no-quirks Decode everything without quirks\n"
" -s, --string KEYWORD Only display the value of the given DMI string\n"
" -t, --type TYPE Only display the entries of given type\n"
" -H, --handle HANDLE Only display the entry of given handle\n"
diff --git a/dmiopt.h b/dmiopt.h
index 2374637..62ffcbb 100644
--- a/dmiopt.h
+++ b/dmiopt.h
@@ -46,6 +46,7 @@ extern struct opt opt;
#define FLAG_DUMP_BIN (1 << 4)
#define FLAG_FROM_DUMP (1 << 5)
#define FLAG_NO_SYSFS (1 << 6)
+#define FLAG_NO_QUIRKS (1 << 7)
int parse_command_line(int argc, char * const argv[]);
void print_help(void);
diff --git a/man/dmidecode.8 b/man/dmidecode.8
index ed066b3..83affc2 100644
--- a/man/dmidecode.8
+++ b/man/dmidecode.8
@@ -1,4 +1,4 @@
-.TH DMIDECODE 8 "January 2019" "dmidecode"
+.TH DMIDECODE 8 "February 2023" "dmidecode"
.\"
.SH NAME
dmidecode \- \s-1DMI\s0 table decoder
@@ -70,6 +70,11 @@ Read memory from device \fIFILE\fP (default: \fI/dev/mem\fP)
Be less verbose. Unknown, inactive and \s-1OEM\s0-specific entries are not
displayed. Meta-data and handle references are hidden.
.TP
+.BR " " " " "--no-quirks"
+Decode everything exactly as it is in the table, without trying to fix up
+common mistakes or hide irrelevant fields.
+This mode is primarily aimed at firmware developers.
+.TP
.BR "-s" ", " "--string \fIKEYWORD\fP"
Only display the value of the \s-1DMI\s0 string identified by \fIKEYWORD\fP.
It must be a keyword from the following list:
@@ -159,6 +164,7 @@ hexadecimal and \s-1ASCII\s0. This option is mainly useful for debugging.
Do not decode the entries, instead dump the DMI data to a file in binary
form. The generated file is suitable to pass to \fB--from-dump\fP
later.
+\fIFILE\fP must not exist.
.TP
.BR " " " " "--from-dump \fIFILE\fP"
Read the DMI data from a binary file previously generated using
diff --git a/util.c b/util.c
index 04aaadd..2770b1d 100644
--- a/util.c
+++ b/util.c
@@ -155,6 +155,7 @@ out:
return p;
}
+#ifdef USE_MMAP
static void safe_memcpy(void *dest, const void *src, size_t n)
{
#ifdef USE_SLOW_MEMCPY
@@ -164,8 +165,9 @@ static void safe_memcpy(void *dest, const void *src, size_t n)
*((u8 *)dest + i) = *((const u8 *)src + i);
#else
memcpy(dest, src, n);
-#endif
+#endif /* USE_SLOW_MEMCPY */
}
+#endif /* USE_MMAP */
/*
* Copy a physical memory chunk into a memory buffer.
@@ -173,18 +175,26 @@ static void safe_memcpy(void *dest, const void *src, size_t n)
*/
void *mem_chunk(off_t base, size_t len, const char *devmem)
{
- void *p;
+ struct stat statbuf;
+ void *p = NULL;
int fd;
#ifdef USE_MMAP
- struct stat statbuf;
off_t mmoffset;
void *mmp;
#endif
- if ((fd = open(devmem, O_RDONLY)) == -1)
+ /*
+ * Safety check: if running as root, devmem is expected to be a
+ * character device file.
+ */
+ if ((fd = open(devmem, O_RDONLY)) == -1
+ || fstat(fd, &statbuf) == -1
+ || (geteuid() == 0 && !S_ISCHR(statbuf.st_mode)))
{
- perror(devmem);
- return NULL;
+ fprintf(stderr, "Can't read memory from %s\n", devmem);
+ if (fd == -1)
+ return NULL;
+ goto out;
}
if ((p = malloc(len)) == NULL)
@@ -194,13 +204,6 @@ void *mem_chunk(off_t base, size_t len, const char *devmem)
}
#ifdef USE_MMAP
- if (fstat(fd, &statbuf) == -1)
- {
- fprintf(stderr, "%s: ", devmem);
- perror("stat");
- goto err_free;
- }
-
/*
* mmap() will fail with SIGBUS if trying to map beyond the end of
* the file.
@@ -259,46 +262,6 @@ out:
return p;
}
-int write_dump(size_t base, size_t len, const void *data, const char *dumpfile, int add)
-{
- FILE *f;
-
- f = fopen(dumpfile, add ? "r+b" : "wb");
- if (!f)
- {
- fprintf(stderr, "%s: ", dumpfile);
- perror("fopen");
- return -1;
- }
-
- if (fseek(f, base, SEEK_SET) != 0)
- {
- fprintf(stderr, "%s: ", dumpfile);
- perror("fseek");
- goto err_close;
- }
-
- if (fwrite(data, len, 1, f) != 1)
- {
- fprintf(stderr, "%s: ", dumpfile);
- perror("fwrite");
- goto err_close;
- }
-
- if (fclose(f))
- {
- fprintf(stderr, "%s: ", dumpfile);
- perror("fclose");
- return -1;
- }
-
- return 0;
-
-err_close:
- fclose(f);
- return -1;
-}
-
/* Returns end - start + 1, assuming start < end */
u64 u64_range(u64 start, u64 end)
{
diff --git a/util.h b/util.h
index 3094cf8..ef24eb9 100644
--- a/util.h
+++ b/util.h
@@ -27,5 +27,4 @@
int checksum(const u8 *buf, size_t len);
void *read_file(off_t base, size_t *len, const char *filename);
void *mem_chunk(off_t base, size_t len, const char *devmem);
-int write_dump(size_t base, size_t len, const void *data, const char *dumpfile, int add);
u64 u64_range(u64 start, u64 end);
diff --git a/version.h b/version.h
index 3f8431b..179ab30 100644
--- a/version.h
+++ b/version.h
@@ -1 +1 @@
-#define VERSION "3.4"
+#define VERSION "3.5"