134 lines
3.3 KiB
C
134 lines
3.3 KiB
C
#ifndef SYSINFO_H
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#define SYSINFO_H
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#include <stdint.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include "tpm.h"
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#include "kernver.h"
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#include "hex_utils.h"
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const char *KERNVER_TYPE = "N/A. This is an error, please report at https://github.com/kxtzownsu/KVS with a picture of the screen.";
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void trim_newline(char* str) {
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size_t len = strlen(str);
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if (len > 0 && str[len - 1] == '\n') {
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str[len - 1] = '\0';
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}
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}
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const char* getFirmwareVersion(){
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// note, may not work on all chromebooks
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// I also don't wanna have to rely on the crossystem binary for it
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FILE *fptr;
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char stupidfile[] = "/sys/class/dmi/id/bios_version";
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fptr = fopen(stupidfile, "r");
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static char firmwareVersion[1024];
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if (fptr == NULL) {
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printf("Error reading Firmware Version \n");
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printf("Please report as a bug at https://github.com/kxtzownsu/KVS-private\n");
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sleep(86400);
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return "Error!";
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}
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fgets(firmwareVersion, 100, fptr);
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fclose(fptr);
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trim_newline(firmwareVersion);
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return firmwareVersion;
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}
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const char* getTpmVersion(){
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char cmd[] = "tpmc tpmver";
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static char output[5];
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FILE* fp = popen(cmd, "r");
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fgets(output, sizeof(output), fp);
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fclose(fp);
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trim_newline(output);
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return output;
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}
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const char* getKernver() {
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char cmd[] = "tpmc read 0x1008 9 2>";
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static char output[26];
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FILE* fp = popen(cmd, "r");
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fgets(output, sizeof(output), fp);
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fclose(fp);
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trim_newline(output);
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uint32_t kernver = 0;
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static char kernver_str[18] = "0x00000000";
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// ewwww yucky i hate this
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if (strncmp(output, "10", 2) == 0) {
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printf("using v1.0\n");
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unsigned int b1, b2, b3, b4;
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sscanf(output + 12, "%2x %2x %2x %2x", &b1, &b2, &b3, &b4);
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kernver = b1 | (b2 << 8) | (b3 << 16) | (b4 << 24);
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snprintf(kernver_str, sizeof(kernver_str), "0x%08x (v1.0)", kernver);
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KERNVER_TYPE = "v1";
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} else if (strncmp(output, "2", 1) == 0) {
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unsigned int b1, b2, b3, b4;
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sscanf(output + 14, "%2x %2x %2x %2x", &b1, &b2, &b3, &b4);
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kernver = b1 | (b2 << 8) | (b3 << 16) | (b4 << 24);
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snprintf(kernver_str, sizeof(kernver_str), "0x%08x (v0.2)", kernver);
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KERNVER_TYPE = "v0";
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}
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return kernver_str;
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}
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const char* getFWMPFlags(){
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char cmd[] = "tpmc read 0x100A 5 2>/dev/null";
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static char output[256];
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FILE* fp = popen(cmd, "r");
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fgets(output, sizeof(output), fp);
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fclose(fp);
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trim_newline(output);
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if (strcmp(output, "") == 0) {
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return "N/A (Most likely unenrolled)";
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} else {
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uint8_t flags = 0;
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static char flags_str[4];
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unsigned int b1;
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sscanf(output + 12, "%2x", &b1);
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flags = b1;
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snprintf(flags_str, sizeof(flags_str), "0x%08x (v1.0)", flags);
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return flags_str;
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}
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}
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const char* getGSCRWVersion(){
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char cmd[] = "gsctool -a -f | tail -n 1 | awk '{printf $2}'";
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static char output[8];
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FILE* fp = popen(cmd, "r");
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fgets(output, sizeof(output), fp);
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fclose(fp);
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trim_newline(output);
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return output;
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}
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const char* getGSCType(){
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char cmd[] = "/opt/kvs/bin/is_ti50";
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static char output[7];
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FILE* fp = popen(cmd, "r");
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fgets(output, sizeof(output), fp);
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fclose(fp);
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trim_newline(output);
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return output;
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}
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#endif |