aboutsummaryrefslogtreecommitdiffstats
path: root/com32/lib/dmi/dmi.c
diff options
context:
space:
mode:
Diffstat (limited to 'com32/lib/dmi/dmi.c')
-rw-r--r--com32/lib/dmi/dmi.c600
1 files changed, 600 insertions, 0 deletions
diff --git a/com32/lib/dmi/dmi.c b/com32/lib/dmi/dmi.c
new file mode 100644
index 00000000..a2a08b56
--- /dev/null
+++ b/com32/lib/dmi/dmi.c
@@ -0,0 +1,600 @@
+/* ----------------------------------------------------------------------- *
+ *
+ * Copyright 2006 Erwan Velu - All Rights Reserved
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall
+ * be included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * -----------------------------------------------------------------------
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include "dmi/dmi.h"
+
+const char *out_of_spec = "<OUT OF SPEC>";
+const char *bad_index = "<BAD INDEX>";
+
+void dmi_bios_runtime_size(uint32_t code, s_dmi *dmi)
+{
+ if(code&0x000003FF) {
+ dmi->bios.runtime_size=code;
+ strcpy(dmi->bios.runtime_size_unit,"bytes");
+ } else {
+ dmi->bios.runtime_size=code >>10;
+ strcpy(dmi->bios.runtime_size_unit,"KB");
+
+ }
+}
+
+void dmi_bios_characteristics(uint64_t code, s_dmi *dmi)
+{
+ int i;
+ /*
+ * This isn't very clear what this bit is supposed to mean
+ */
+ //if(code.l&(1<<3))
+ if(code&&(1<<3))
+ {
+ ((bool *)(& dmi->bios.characteristics))[0]=true;
+ return;
+ }
+
+ for(i=4; i<=31; i++)
+ //if(code.l&(1<<i))
+ if(code&(1<<i))
+ ((bool *)(& dmi->bios.characteristics))[i-3]=true;
+}
+
+void dmi_bios_characteristics_x1(uint8_t code, s_dmi *dmi)
+{
+ int i;
+
+ for(i=0; i<=7; i++)
+ if(code&(1<<i))
+ ((bool *)(& dmi->bios.characteristics_x1))[i]=true;
+}
+
+void dmi_bios_characteristics_x2(uint8_t code, s_dmi *dmi)
+{
+ int i;
+
+ for(i=0; i<=2; i++)
+ if(code&(1<<i))
+ ((bool *)(& dmi->bios.characteristics_x2))[i]=true;
+}
+
+
+void dmi_system_uuid(uint8_t *p, s_dmi *dmi)
+{
+ int only0xFF=1, only0x00=1;
+ int i;
+
+ for(i=0; i<16 && (only0x00 || only0xFF); i++)
+ {
+ if(p[i]!=0x00) only0x00=0;
+ if(p[i]!=0xFF) only0xFF=0;
+ }
+
+ if(only0xFF)
+ {
+ sprintf(dmi->system.uuid,"Not Present");
+ return;
+ }
+ if(only0x00)
+ {
+ sprintf(dmi->system.uuid,"Not Settable");
+ return;
+ }
+
+ sprintf(dmi->system.uuid,"%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7],
+ p[8], p[9], p[10], p[11], p[12], p[13], p[14], p[15]);
+}
+
+void dmi_system_wake_up_type(uint8_t code, s_dmi *dmi)
+{
+ /* 3.3.2.1 */
+ static const char *type[]={
+ "Reserved", /* 0x00 */
+ "Other",
+ "Unknown",
+ "APM Timer",
+ "Modem Ring",
+ "LAN Remote",
+ "Power Switch",
+ "PCI PME#",
+ "AC Power Restored" /* 0x08 */
+ };
+
+ if(code<=0x08) {
+ strcpy(dmi->system.wakeup_type,type[code]);
+ } else {
+ strcpy(dmi->system.wakeup_type,out_of_spec);
+ }
+return;
+}
+
+static void dmi_base_board_features(uint8_t code, s_dmi *dmi)
+{
+ if((code&0x1F)!=0)
+ {
+ int i;
+
+ for(i=0; i<=4; i++)
+ if(code&(1<<i))
+ ((bool *)(& dmi->base_board.features))[i]=true;
+ }
+}
+
+static void dmi_processor_voltage(uint8_t code, s_dmi *dmi)
+{
+ /* 3.3.5.4 */
+ static const float voltage[]={
+ 5.0,
+ 3.3,
+ 2.9
+ };
+ int i;
+
+ if(code&0x80)
+ dmi->processor.voltage=((float)(code&0x7f)/10);
+ else
+ {
+ for(i=0; i<=2; i++)
+ if(code&(1<<i))
+ dmi->processor.voltage=voltage[i];
+ }
+}
+
+static void dmi_processor_id(uint8_t type, uint8_t *p, const char *version, s_dmi *dmi)
+{
+ /*
+ * Extra flags are now returned in the ECX register when one calls
+ * the CPUID instruction. Their meaning is explained in table 6, but
+ * DMI doesn't support this yet.
+ */
+ uint32_t eax, edx;
+ int sig=0;
+
+ /*
+ * This might help learn about new processors supporting the
+ * CPUID instruction or another form of identification.
+ */
+ sprintf(dmi->processor.id,"ID: %02X %02X %02X %02X %02X %02X %02X %02X\n",
+ p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
+
+ if(type==0x05) /* 80386 */
+ {
+ uint16_t dx=WORD(p);
+ /*
+ * 80386 have a different signature.
+ */
+ dmi->processor.signature.type=(dx >>12);
+ dmi->processor.signature.family=((dx>>8)&0xF);
+ dmi->processor.signature.stepping=(dx>>4)&0xF;
+ dmi->processor.signature.minor_stepping=(dx&0xF);
+ return;
+ }
+ if(type==0x06) /* 80486 */
+ {
+ uint16_t dx=WORD(p);
+ /*
+ * Not all 80486 CPU support the CPUID instruction, we have to find
+ * wether the one we have here does or not. Note that this trick
+ * works only because we know that 80486 must be little-endian.
+ */
+ if((dx&0x0F00)==0x0400
+ && ((dx&0x00F0)==0x0040 || (dx&0x00F0)>=0x0070)
+ && ((dx&0x000F)>=0x0003))
+ sig=1;
+ else
+ {
+ dmi->processor.signature.type=((dx >>12)&0x3);
+ dmi->processor.signature.family=((dx>>8)&0xF);
+ dmi->processor.signature.model=((dx>>4)&0xF);
+ dmi->processor.signature.stepping=(dx&0xF);
+ return;
+ }
+ }
+ else if((type>=0x0B && type<=0x13) /* Intel, Cyrix */
+ || (type>=0xB0 && type<=0xB3) /* Intel */
+ || type==0xB5 /* Intel */
+ || type==0xB9) /* Intel */
+ sig=1;
+ else if((type>=0x18 && type<=0x1D) /* AMD */
+ || type==0x1F /* AMD */
+ || (type>=0xB6 && type<=0xB7) /* AMD */
+ || (type>=0x83 && type<=0x85)) /* AMD */
+ sig=2;
+ else if(type==0x01 || type==0x02)
+ {
+ /*
+ * 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)
+ sig=1;
+ else if(strncmp(version, "AMD Athlon(TM)", 14)==0
+ || strncmp(version, "AMD Opteron(tm)", 15)==0)
+ sig=2;
+ else
+ return;
+ }
+ else /* not X86-class */
+ return;
+
+ eax=DWORD(p);
+ edx=DWORD(p+4);
+ switch(sig)
+ {
+ case 1: /* Intel */
+ dmi->processor.signature.type=((eax >>12)&0x3);
+ dmi->processor.signature.family=(((eax>>16)&0xFF0)+((eax>>8)&0x00F));
+ dmi->processor.signature.model=(((eax>>12)&0xF0)+((eax>>4)&0x0F));
+ dmi->processor.signature.stepping=(eax&0xF);
+ break;
+ case 2: /* AMD */
+ dmi->processor.signature.family=(((eax>>8)&0xF)==0xF?(eax>>20)&0xFF:(eax>>8)&0xF);
+ dmi->processor.signature.model =(((eax>>4)&0xF)==0xF?(eax>>16)&0xF :(eax>>4)&0xF);
+ dmi->processor.signature.stepping=(eax&0xF);
+ break;
+ }
+
+ edx=DWORD(p+4);
+ if((edx&0x3FF7FDFF)!=0)
+ {
+ int i;
+ for(i=0; i<=31; i++)
+ if(cpu_flags_strings[i]!=NULL && edx&(1<<i))
+ ((bool *)(& dmi->processor.cpu_flags))[i]=true;
+ //printf("%s\t%s\n", prefix, flags[i]);
+ }
+}
+
+
+void to_dmi_header(struct dmi_header *h, uint8_t *data)
+{
+ h->type=data[0];
+ h->length=data[1];
+ h->handle=WORD(data+2);
+ h->data=data;
+}
+
+const char *dmi_string(struct dmi_header *dm, uint8_t s)
+{
+ char *bp=(char *)dm->data;
+ size_t i, len;
+
+ if(s==0)
+ return "Not Specified";
+
+ bp+=dm->length;
+ while(s>1 && *bp)
+ {
+ bp+=strlen(bp);
+ bp++;
+ s--;
+ }
+
+ if(!*bp)
+ return bad_index;
+
+ /* ASCII filtering */
+ len=strlen(bp);
+ for(i=0; i<len; i++)
+ if(bp[i]<32 || bp[i]==127)
+ bp[i]='.';
+
+ return bp;
+}
+
+int dmi_checksum(uint8_t *buf)
+{
+ uint8_t sum=0;
+ int a;
+
+ for(a=0; a<15; a++)
+ sum+=buf[a];
+ return (sum==0);
+}
+
+int dmi_iterate(s_dmi *dmi) {
+ uint8_t buf[16];
+ char *p,*q;
+
+ /* Cleaning structures */
+ memset(&dmi->base_board,0,sizeof (s_base_board));
+ memset(&dmi->battery,0,sizeof (s_battery));
+ memset(&dmi->bios,0,sizeof (s_bios));
+ memset(&dmi->chassis,0,sizeof (s_chassis));
+ for (int i=0;i<MAX_DMI_MEMORY_ITEMS;i++)
+ memset(&dmi->memory[i],0,sizeof (s_memory));
+ memset(&dmi->processor,0,sizeof (s_processor));
+ memset(&dmi->system,0,sizeof (s_system));
+
+ /* Until we found this elements in the dmitable, we consider them as not filled */
+ dmi->base_board.filled=false;
+ dmi->battery.filled=false;
+ dmi->bios.filled=false;
+ dmi->chassis.filled=false;
+ for (int i=0;i<MAX_DMI_MEMORY_ITEMS;i++)
+ dmi->memory[i].filled=false;
+ dmi->processor.filled=false;
+ dmi->system.filled=false;
+
+ p=(char *)0xF0000; /* The start address to look at the dmi table */
+ for (q = p; q < p + 0x10000; q += 16) {
+ memcpy(buf, q, 15);
+ if(memcmp(buf, "_DMI_", 5)==0 && dmi_checksum(buf)) {
+ dmi->dmitable.num = buf[13]<<8|buf[12];
+ dmi->dmitable.len = buf[7]<<8|buf[6];
+ dmi->dmitable.base = buf[11]<<24|buf[10]<<16|buf[9]<<8|buf[8];
+ dmi->dmitable.ver = (buf[0x06]<<8)+buf[0x07];
+
+ /*
+ * DMI version 0.0 means that the real version is taken from
+ * the SMBIOS version, which we don't know at this point.
+ */
+ if(buf[14]!=0) {
+ dmi->dmitable.major_version=buf[14]>>4;
+ dmi->dmitable.minor_version=buf[14]&0x0F;
+ }
+ else {
+ dmi->dmitable.major_version=0;
+ dmi->dmitable.minor_version=0;
+
+ }
+/* printf("DMI present (version %d.%d)\n", dmitable.major_version,dmitable.minor_version);
+ printf("%d structures occupying %d bytes.\n",dmitable.num, dmitable.len);
+ printf("DMI table at 0x%08X.\n",dmitable.base);*/
+ return DMI_TABLE_PRESENT;
+ }
+ }
+ dmi->dmitable.base=0;
+ dmi->dmitable.num=0;
+ dmi->dmitable.ver=0;
+ dmi->dmitable.len=0;
+ return -ENODMITABLE;
+}
+
+void dmi_decode(struct dmi_header *h, uint16_t ver, s_dmi *dmi)
+{
+ uint8_t *data=h->data;
+
+ /*
+ * Note: DMI types 37, 38 and 39 are untested
+ */
+ switch(h->type)
+ {
+ case 0: /* 3.3.1 BIOS Information */
+// printf("BIOS Information\n");
+ if(h->length<0x12) break;
+ dmi->bios.filled=true;
+ strcpy(dmi->bios.vendor,dmi_string(h,data[0x04]));
+ strcpy(dmi->bios.version,dmi_string(h,data[0x05]));
+ strcpy(dmi->bios.release_date,dmi_string(h,data[0x08]));
+ dmi->bios.address=WORD(data+0x06);
+ dmi_bios_runtime_size((0x10000-WORD(data+0x06))<<4,dmi);
+ dmi->bios.rom_size=(data[0x09]+1)<<6;
+ strcpy(dmi->bios.rom_size_unit,"kB");
+ dmi_bios_characteristics(QWORD(data+0x0A),dmi);
+
+ if(h->length<0x13) break;
+ dmi_bios_characteristics_x1(data[0x12], dmi);
+ if(h->length<0x14) break;
+ dmi_bios_characteristics_x2(data[0x13], dmi);
+ if(h->length<0x18) break;
+ if(data[0x14]!=0xFF && data[0x15]!=0xFF)
+ sprintf(dmi->bios.bios_revision,"%u.%u",
+ data[0x14], data[0x15]);
+ if(data[0x16]!=0xFF && data[0x17]!=0xFF)
+ sprintf(dmi->bios.firmware_revision,"%u.%u",
+ data[0x16], data[0x17]);
+ break;
+ case 1: /* 3.3.2 System Information */
+// printf("System Information\n");
+ if(h->length<0x08) break;
+ dmi->system.filled=true;
+ strcpy(dmi->system.manufacturer,dmi_string(h,data[0x04]));
+ strcpy(dmi->system.product_name,dmi_string(h,data[0x05]));
+ strcpy(dmi->system.version,dmi_string(h,data[0x06]));
+ strcpy(dmi->system.serial,dmi_string(h,data[0x07]));
+ if(h->length<0x19) break;
+ dmi_system_uuid(data+0x08,dmi);
+ dmi_system_wake_up_type(data[0x18],dmi);
+ if(h->length<0x1B) break;
+ strcpy(dmi->system.sku_number,dmi_string(h,data[0x19]));
+ strcpy(dmi->system.family,dmi_string(h,data[0x1A]));
+ break;
+
+ case 2: /* 3.3.3 Base Board Information */
+// printf("Base Board Information\n");
+ if(h->length<0x08) break;
+ dmi->base_board.filled=true;
+ strcpy(dmi->base_board.manufacturer,dmi_string(h,data[0x04]));
+ strcpy(dmi->base_board.product_name,dmi_string(h,data[0x05]));
+ strcpy(dmi->base_board.version,dmi_string(h,data[0x06]));
+ strcpy(dmi->base_board.serial,dmi_string(h,data[0x07]));
+ if(h->length<0x0F) break;
+ strcpy(dmi->base_board.asset_tag,dmi_string(h,data[0x08]));
+ dmi_base_board_features(data[0x09], dmi);
+ strcpy(dmi->base_board.location,dmi_string(h,data[0x0A]));
+ strcpy(dmi->base_board.type,dmi_string(h,data[0x0D]));
+ if(h->length<0x0F+data[0x0E]*sizeof(uint16_t)) break;
+ break;
+ case 3: /* 3.3.4 Chassis Information */
+// printf("Chassis Information\n");
+ if(h->length<0x09) break;
+ dmi->chassis.filled=true;
+ strcpy(dmi->chassis.manufacturer,dmi_string(h,data[0x04]));
+ strcpy(dmi->chassis.type,dmi_chassis_type(data[0x05]&0x7F));
+ strcpy(dmi->chassis.lock,dmi_chassis_lock(data[0x05]>>7));
+ strcpy(dmi->chassis.version,dmi_string(h,data[0x06]));
+ strcpy(dmi->chassis.serial,dmi_string(h,data[0x07]));
+ strcpy(dmi->chassis.asset_tag,dmi_string(h,data[0x08]));
+ if(h->length<0x0D) break;
+ strcpy(dmi->chassis.boot_up_state,dmi_chassis_state(data[0x09]));
+ strcpy(dmi->chassis.power_supply_state,dmi_chassis_state(data[0x0A]));
+ strcpy(dmi->chassis.thermal_state,dmi_chassis_state(data[0x0B]));
+ strcpy(dmi->chassis.security_status,dmi_chassis_security_status(data[0x0C]));
+ if(h->length<0x11) break;
+ sprintf(dmi->chassis.oem_information,"0x%08X\n",DWORD(data+0x0D));
+ if(h->length<0x15) break;
+ dmi->chassis.height=data[0x11];
+ dmi->chassis.nb_power_cords=data[0x12];
+ break;
+
+ case 4: /* 3.3.5 Processor Information */
+// printf("Processor Information\n");
+ if(h->length<0x1A) break;
+ dmi->processor.filled=true;
+ strcpy(dmi->processor.socket_designation,dmi_string(h, data[0x04]));
+ strcpy(dmi->processor.type,dmi_processor_type(data[0x05]));
+ strcpy(dmi->processor.manufacturer,dmi_string(h, data[0x07]));
+ strcpy(dmi->processor.family,dmi_processor_family(data[0x06],dmi->processor.manufacturer));
+ dmi_processor_id(data[0x06], data+8, dmi_string(h, data[0x10]), dmi);
+ strcpy(dmi->processor.version,dmi_string(h, data[0x10]));
+ dmi_processor_voltage(data[0x11],dmi);
+ dmi->processor.external_clock=WORD(data+0x12);
+ dmi->processor.max_speed=WORD(data+0x14);
+ dmi->processor.current_speed=WORD(data+0x16);
+ if(data[0x18]&(1<<6))
+ strcpy(dmi->processor.status,dmi_processor_status(data[0x18]&0x07));
+ else
+ sprintf(dmi->processor.status,"Unpopulated");
+ sprintf(dmi->processor.upgrade,dmi_processor_upgrade(data[0x19]));
+ if(h->length<0x20) break;
+ dmi_processor_cache(WORD(data+0x1A), "L1", ver,dmi->processor.cache1);
+ dmi_processor_cache(WORD(data+0x1C), "L2", ver,dmi->processor.cache2);
+ dmi_processor_cache(WORD(data+0x1E), "L3", ver,dmi->processor.cache3);
+ if(h->length<0x23) break;
+ strcpy(dmi->processor.serial,dmi_string(h, data[0x20]));
+ strcpy(dmi->processor.asset_tag,dmi_string(h, data[0x21]));
+ strcpy(dmi->processor.part_number,dmi_string(h, data[0x22]));
+ break;
+ case 17: /* 3.3.18 Memory Device */
+ if (h->length < 0x15) break;
+ dmi->memory_count++;
+ s_memory *mem = &dmi->memory[dmi->memory_count-1];
+ dmi->memory[dmi->memory_count-1].filled=true;
+ dmi_memory_array_error_handle(WORD(data + 0x06),mem->error);
+ dmi_memory_device_width(WORD(data + 0x08),mem->total_width);
+ dmi_memory_device_width(WORD(data + 0x0A),mem->data_width);
+ dmi_memory_device_size(WORD(data + 0x0C),mem->size);
+ strcpy(mem->form_factor,dmi_memory_device_form_factor(data[0x0E]));
+ dmi_memory_device_set(data[0x0F],mem->device_set);
+ strcpy(mem->device_locator,dmi_string(h, data[0x10]));
+ strcpy(mem->bank_locator,dmi_string(h, data[0x11]));
+ strcpy(mem->type,dmi_memory_device_type(data[0x12]));
+ dmi_memory_device_type_detail(WORD(data + 0x13),mem->type_detail);
+ if (h->length < 0x17) break;
+ dmi_memory_device_speed(WORD(data + 0x15),mem->speed);
+ if (h->length < 0x1B) break;
+ strcpy(mem->manufacturer, dmi_string(h, data[0x17]));
+ strcpy(mem->serial,dmi_string(h, data[0x18]));
+ strcpy(mem->asset_tag,dmi_string(h, data[0x19]));
+ strcpy(mem->part_number,dmi_string(h, data[0x1A]));
+ break;
+ case 22: /* 3.3.23 Portable Battery */
+ if (h->length < 0x10) break;
+ dmi->battery.filled=true;
+ strcpy(dmi->battery.location,dmi_string(h, data[0x04]));
+ strcpy(dmi->battery.manufacturer,dmi_string(h, data[0x05]));
+
+ if (data[0x06] || h->length < 0x1A)
+ strcpy(dmi->battery.manufacture_date, dmi_string(h, data[0x06]));
+
+ if (data[0x07] || h->length < 0x1A)
+ strcpy(dmi->battery.serial, dmi_string(h, data[0x07]));
+
+ strcpy(dmi->battery.name,dmi_string(h, data[0x08]));
+
+ if (data[0x09] != 0x02 || h->length < 0x1A)
+ strcpy(dmi->battery.chemistry,dmi_battery_chemistry(data[0x09]));
+
+ if (h->length < 0x1A)
+ dmi_battery_capacity(WORD(data + 0x0A), 1,dmi->battery.design_capacity);
+ else
+ dmi_battery_capacity(WORD(data + 0x0A), data[0x15],dmi->battery.design_capacity);
+ dmi_battery_voltage(WORD(data + 0x0C),dmi->battery.design_voltage);
+ strcpy(dmi->battery.sbds,dmi_string(h, data[0x0E]));
+ dmi_battery_maximum_error(data[0x0F],dmi->battery.maximum_error);
+ if (h->length < 0x1A) break;
+ if (data[0x07] == 0)
+ sprintf(dmi->battery.sbds_serial,"%04X", WORD(data + 0x10));
+
+ if (data[0x06] == 0)
+ sprintf(dmi->battery.sbds_manufacture_date,"%u-%02u-%02u",
+ 1980 + (WORD(data + 0x12) >> 9),
+ (WORD(data + 0x12) >> 5) & 0x0F,
+ WORD(data + 0x12) & 0x1F);
+ if (data[0x09] == 0x02)
+ strcpy(dmi->battery.sbds_chemistry, dmi_string(h, data[0x14]));
+
+ // sprintf(dmi->battery.oem_info,"0x%08X",DWORD(h, data+0x16));
+ break;
+
+
+ }
+}
+
+void parse_dmitable(s_dmi *dmi) {
+ int i=0;
+ uint8_t *data = NULL;
+ uint8_t buf[dmi->dmitable.len];
+
+ memcpy(buf,(int *)dmi->dmitable.base,sizeof(uint8_t) * dmi->dmitable.len);
+ data=buf;
+ dmi->memory_count=0;
+ while(i<dmi->dmitable.num && data+4<=buf+dmi->dmitable.len) /* 4 is the length of an SMBIOS structure header */ {
+ uint8_t *next;
+ struct dmi_header h;
+ to_dmi_header(&h, data);
+
+ /*
+ * If a short entry is found (less than 4 bytes), not only it
+ * is invalid, but we cannot reliably locate the next entry.
+ * Better stop at this point, and let the user know his/her
+ * table is broken.
+ */
+ if(h.length<4)
+ {
+ printf("Invalid entry length (%u). DMI table is broken! Stop.\n\n", (unsigned int)h.length);
+ break;
+ }
+
+// printf("Handle 0x%04X, DMI type %d, %d bytes\n", h.handle, h.type, h.length);
+
+ /* loo for the next handle */
+ next=data+h.length;
+ while(next-buf+1<dmi->dmitable.len && (next[0]!=0 || next[1]!=0))
+ next++;
+ next+=2;
+ if(next-buf<=dmi->dmitable.len)
+ {
+ dmi_decode(&h, dmi->dmitable.ver,dmi);
+ }
+ data=next;
+ i++;
+ }
+}