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authorKay Sievers <kay@vrfy.org>2013-03-10 22:47:56 +0100
committerKay Sievers <kay@vrfy.org>2013-03-10 22:48:27 +0100
commitbc6f2e7c62bcd08177f879423188c54289694619 (patch)
treebc5ac1caf432a58fef6a55626084927227e9348c /src/shared/efivars.c
parentad88e758d1b08a21d25971b074e119c167757109 (diff)
bootctl: print secure boot flags
Diffstat (limited to 'src/shared/efivars.c')
-rw-r--r--src/shared/efivars.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/shared/efivars.c b/src/shared/efivars.c
index c42956f84d..4fb77428f2 100644
--- a/src/shared/efivars.c
+++ b/src/shared/efivars.c
@@ -34,6 +34,36 @@ bool is_efi_boot(void) {
return access("/sys/firmware/efi", F_OK) >= 0;
}
+static int read_flag(const char *varname) {
+ int r;
+ void *v;
+ size_t s;
+ uint8_t b;
+
+ r = efi_get_variable(EFI_VENDOR_GLOBAL, varname, NULL, &v, &s);
+ if (r < 0)
+ return r;
+
+ if (s != 1) {
+ r = -EINVAL;
+ goto finish;
+ }
+
+ b = *(uint8_t *)v;
+ r = b > 0;
+finish:
+ free(v);
+ return r;
+}
+
+int is_efi_secure_boot(void) {
+ return read_flag("SecureBoot");
+}
+
+int is_efi_secure_boot_setup_mode(void) {
+ return read_flag("SetupMode");
+}
+
int efi_get_variable(
sd_id128_t vendor,
const char *name,