src/test/test-boot-timestamps.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <sys/types.h>
   4 #include <unistd.h>
   5
   6 #include "acpi-fpdt.h"
   7 #include "boot-timestamps.h"
   8 #include "efi-loader.h"
   9 #include "log.h"
  10 #include "tests.h"
  11 #include "util.h"
  12
  13 static int test_acpi_fpdt(void) {
  14         char ts_start[FORMAT_TIMESPAN_MAX], ts_exit[FORMAT_TIMESPAN_MAX], ts_span[FORMAT_TIMESPAN_MAX];
  15         usec_t loader_start, loader_exit;
  16         int r;
  17
  18         r = acpi_get_boot_usec(&loader_start, &loader_exit);
  19         if (r < 0) {
  20                 bool ok = r == -ENOENT || r == -EACCES || r == -ENODATA;
  21
  22                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR, r, "Failed to read ACPI FPDT: %m");
  23                 return ok ? 0 : r;
  24         }
  25
  26         log_info("ACPI FPDT: loader start=%s exit=%s duration=%s",
  27                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  28                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  29                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  30         return 1;
  31 }
  32
  33 static int test_efi_loader(void) {
  34         char ts_start[FORMAT_TIMESPAN_MAX], ts_exit[FORMAT_TIMESPAN_MAX], ts_span[FORMAT_TIMESPAN_MAX];
  35         usec_t loader_start, loader_exit;
  36         int r;
  37
  38         r = efi_loader_get_boot_usec(&loader_start, &loader_exit);
  39         if (r < 0) {
  40                 bool ok = r == -ENOENT || r == -EACCES || r == -EOPNOTSUPP;
  41
  42                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR, r, "Failed to read EFI loader data: %m");
  43                 return ok ? 0 : r;
  44         }
  45
  46         log_info("EFI Loader: start=%s exit=%s duration=%s",
  47                  format_timespan(ts_start, sizeof(ts_start), loader_start, USEC_PER_MSEC),
  48                  format_timespan(ts_exit, sizeof(ts_exit), loader_exit, USEC_PER_MSEC),
  49                  format_timespan(ts_span, sizeof(ts_span), loader_exit - loader_start, USEC_PER_MSEC));
  50         return 1;
  51 }
  52
  53 static int test_boot_timestamps(void) {
  54         char s[MAX(FORMAT_TIMESPAN_MAX, FORMAT_TIMESTAMP_MAX)];
  55         dual_timestamp fw, l, k;
  56         int r;
  57
  58         dual_timestamp_from_monotonic(&k, 0);
  59
  60         r = boot_timestamps(NULL, &fw, &l);
  61         if (r < 0) {
  62                 bool ok = r == -ENOENT || r == -EACCES || r == -EOPNOTSUPP;
  63
  64                 log_full_errno(ok ? LOG_DEBUG : LOG_ERR, r, "Failed to read variables: %m");
  65                 return ok ? 0 : r;
  66         }
  67
  68         log_info("Firmware began %s before kernel.", format_timespan(s, sizeof(s), fw.monotonic, 0));
  69         log_info("Loader began %s before kernel.", format_timespan(s, sizeof(s), l.monotonic, 0));
  70         log_info("Firmware began %s.", format_timestamp(s, sizeof(s), fw.realtime));
  71         log_info("Loader began %s.", format_timestamp(s, sizeof(s), l.realtime));
  72         log_info("Kernel began %s.", format_timestamp(s, sizeof(s), k.realtime));
  73         return 1;
  74 }
  75
  76 int main(int argc, char* argv[]) {
  77         int p, q, r;
  78
  79         test_setup_logging(LOG_DEBUG);
  80
  81         p = test_acpi_fpdt();
  82         assert(p >= 0);
  83         q = test_efi_loader();
  84         assert(q >= 0);
  85         r = test_boot_timestamps();
  86         assert(r >= 0);
  87
  88         if (p == 0 && q == 0 && r == 0)
  89                 return log_tests_skipped("access to firmware variables not possible");
  90
  91         return EXIT_SUCCESS;
  92 }