From 88fa4beb631c5329bf616554f7d2714ece7a5f0b Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sat, 20 Jul 2019 20:51:17 -0600 Subject: autoboot: Improve docs for CONFIG_AUTOBOOT_ENCRYPTION This option is not documented properly at present. Fix it. Signed-off-by: Simon Glass --- common/autoboot.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'common') diff --git a/common/autoboot.c b/common/autoboot.c index 5a0dac8..f832808 100644 --- a/common/autoboot.c +++ b/common/autoboot.c @@ -54,6 +54,14 @@ static int slow_equals(u8 *a, u8 *b, int len) return diff == 0; } +/** + * passwd_abort_sha256() - check for a hashed key sequence to abort booting + * + * This checks for the user entering a SHA256 hash within a given time. + * + * @etime: Timeout value ticks (stop when get_ticks() reachs this) + * @return 0 if autoboot should continue, 1 if it should stop + */ static int passwd_abort_sha256(uint64_t etime) { const char *sha_env_str = env_get("bootstopkeysha256"); @@ -106,6 +114,14 @@ static int passwd_abort_sha256(uint64_t etime) return abort; } +/** + * passwd_abort_key() - check for a key sequence to aborted booting + * + * This checks for the user entering a string within a given time. + * + * @etime: Timeout value ticks (stop when get_ticks() reachs this) + * @return 0 if autoboot should continue, 1 if it should stop + */ static int passwd_abort_key(uint64_t etime) { int abort = 0; -- cgit v1.1