From 59840f7b93e91d855b48a3378f7620bc869a6ed7 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Marek=20Beh=C3=BAn?= Date: Thu, 4 Apr 2024 09:50:55 +0200 Subject: [PATCH] arm: mvebu: turris_omnia: Print board ECDSA public key if available MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit If MCU supports the FEAT_CRYPTO feature, read board ECDSA public key from MCU and print it. Signed-off-by: Marek Behún Reviewed-by: Stefan Roese --- board/CZ.NIC/turris_omnia/turris_omnia.c | 25 +++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c index f63640ad64..b2f0088e5e 100644 --- a/board/CZ.NIC/turris_omnia/turris_omnia.c +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c @@ -253,6 +253,24 @@ static int omnia_mcu_board_info(char *serial, u8 *mac, char *version) return 0; } +static int omnia_mcu_get_board_public_key(char pub_key[static 67]) +{ + u8 reply[34]; + int ret; + + ret = omnia_mcu_read(CMD_CRYPTO_GET_PUBLIC_KEY, reply, sizeof(reply)); + if (ret) + return ret; + + if (reply[0] != 33) + return -EBADMSG; + + bin2hex(pub_key, &reply[1], 33); + pub_key[66] = '\0'; + + return 0; +} + static void enable_a385_watchdog(unsigned int timeout_minutes) { struct sar_freq_modes sar_freq; @@ -1032,7 +1050,7 @@ int board_late_init(void) int checkboard(void) { - char serial[17], version[4]; + char serial[17], version[4], pub_key[67]; bool has_version; int err; @@ -1051,6 +1069,11 @@ int checkboard(void) printf(" Board version: %s\n", has_version ? version : "unknown"); printf(" Serial Number: %s\n", !err ? serial : "unknown"); + if (omnia_mcu_has_feature(FEAT_CRYPTO)) { + err = omnia_mcu_get_board_public_key(pub_key); + printf(" ECDSA Public Key: %s\n", !err ? pub_key : "unknown"); + } + return 0; } -- 2.39.5