SECURE BOOT: Add command for validation of images

1. esbc_validate command is meant for validating header and
   signature of images (Boot Script and ESBC uboot client).
   SHA-256 and RSA operations are performed using SEC block in HW.
   This command works on both PBL based and Non PBL based Freescale
   platforms.
   Command usage:
   esbc_validate img_hdr_addr [pub_key_hash]
2. ESBC uboot client can be linux. Additionally, rootfs and device
   tree blob can also be signed.
3. In the event of header or signature failure in validation,
   ITS and ITF bits determine further course of action.
4. In case of soft failure, appropriate error is dumped on console.
5. In case of hard failure, SoC is issued RESET REQUEST after
   dumping error on the console.
6. KEY REVOCATION Feature:
   QorIQ platforms like B4/T4 have support of srk key table and key
   revocation in ISBC code in Silicon.
   The srk key table allows the user to have a key table with multiple
   keys and revoke any key in case of particular key gets compromised.
   In case the ISBC code uses the key revocation and srk key table to
   verify the u-boot code, the subsequent chain of trust should also
   use the same.
6. ISBC KEY EXTENSION Feature:
   This feature allows large number of keys to be used for esbc validation
   of images. A set of public keys is being signed and validated by ISBC
   which can be further used for esbc validation of images.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Gaurav Rana <gaurav.rana@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>

1 files changed, 128 insertions, 0 deletions

diff --git a/include/fsl_secboot_err.h b/include/fsl_secboot_err.h
new file mode 100644
index 0000000000..afc50a80ca
--- /dev/null
+++ b/include/fsl_secboot_err.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2015 Freescale Semiconductor, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _FSL_SECBOOT_ERR_H
+#define _FSL_SECBOOT_ERR_H
+
+#define ERROR_ESBC_PAMU_INIT					0x100000
+#define ERROR_ESBC_SEC_RESET					0x200000
+#define ERROR_ESBC_SEC_INIT					0x400000
+#define ERROR_ESBC_SEC_DEQ					0x800000
+#define ERROR_ESBC_SEC_DEQ_TO					0x1000000
+#define ERROR_ESBC_SEC_ENQ					0x2000000
+#define ERROR_ESBC_SEC_JOBQ_STATUS				0x4000000
+#define ERROR_ESBC_CLIENT_CPUID_NO_MATCH			0x1
+#define ERROR_ESBC_CLIENT_HDR_LOC				0x2
+#define ERROR_ESBC_CLIENT_HEADER_BARKER				0x4
+#define ERROR_ESBC_CLIENT_HEADER_KEY_LEN			0x8
+#define ERROR_ESBC_CLIENT_HEADER_SIG_LEN			0x10
+#define ERROR_ESBC_CLIENT_HEADER_KEY_REVOKED			0x11
+#define ERROR_ESBC_CLIENT_HEADER_INVALID_SRK_NUM_ENTRY		0x12
+#define ERROR_ESBC_CLIENT_HEADER_INVALID_KEY_NUM		0x13
+#define ERROR_ESBC_CLIENT_HEADER_INV_SRK_ENTRY_KEYLEN		0x14
+#define ERROR_ESBC_CLIENT_HEADER_IE_KEY_REVOKED			0x15
+#define ERROR_ESBC_CLIENT_HEADER_INVALID_IE_NUM_ENTRY		0x16
+#define ERROR_ESBC_CLIENT_HEADER_INVALID_IE_KEY_NUM		0x17
+#define ERROR_ESBC_CLIENT_HEADER_INV_IE_ENTRY_KEYLEN		0x18
+#define ERROR_IE_TABLE_NOT_FOUND				0x19
+#define ERROR_ESBC_CLIENT_HEADER_KEY_LEN_NOT_TWICE_SIG_LEN	0x20
+#define ERROR_ESBC_CLIENT_HEADER_KEY_MOD_1			0x40
+#define ERROR_ESBC_CLIENT_HEADER_KEY_MOD_2			0x80
+#define ERROR_ESBC_CLIENT_HEADER_SIG_KEY_MOD			0x100
+#define ERROR_ESBC_CLIENT_HEADER_SG_ESBC_EP			0x200
+#define ERROR_ESBC_CLIENT_HASH_COMPARE_KEY			0x400
+#define ERROR_ESBC_CLIENT_HASH_COMPARE_EM			0x800
+#define ERROR_ESBC_CLIENT_SSM_TRUSTSTS				0x1000
+#define ERROR_ESBC_CLIENT_BAD_ADDRESS				0x2000
+#define ERROR_ESBC_CLIENT_MISC					0x4000
+#define ERROR_ESBC_CLIENT_HEADER_SG_ENTIRES_BAD			0x8000
+#define ERROR_ESBC_CLIENT_HEADER_SG				0x10000
+#define ERROR_ESBC_CLIENT_HEADER_IMG_SIZE			0x20000
+#define ERROR_ESBC_WRONG_CMD					0x40000
+#define ERROR_ESBC_MISSING_BOOTM				0x80000
+#define ERROR_ESBC_CLIENT_MAX					0x0
+
+struct fsl_secboot_errcode {
+	int errcode;
+	const char *name;
+};
+
+static const struct fsl_secboot_errcode fsl_secboot_errcodes[] = {
+	{ ERROR_ESBC_PAMU_INIT,
+		"Error in initializing PAMU"},
+	{ ERROR_ESBC_SEC_RESET,
+		"Error in resetting Job ring of SEC"},
+	{ ERROR_ESBC_SEC_INIT,
+		"Error in initializing SEC"},
+	{ ERROR_ESBC_SEC_ENQ,
+		"Error in enqueue operation by SEC"},
+	{ ERROR_ESBC_SEC_DEQ_TO,
+		"Dequeue operation by SEC is timed out"},
+	{ ERROR_ESBC_SEC_DEQ,
+		"Error in dequeue operation by SEC"},
+	{ ERROR_ESBC_SEC_JOBQ_STATUS,
+		"Error in status of the job submitted to SEC"},
+	{ ERROR_ESBC_CLIENT_CPUID_NO_MATCH,
+		"Current core is not boot core i.e core0" },
+	{ ERROR_ESBC_CLIENT_HDR_LOC,
+		"Header address not in allowed memory range" },
+	{ ERROR_ESBC_CLIENT_HEADER_BARKER,
+		"Wrong barker code in header" },
+	{ ERROR_ESBC_CLIENT_HEADER_KEY_LEN,
+		"Wrong public key length in header" },
+	{ ERROR_ESBC_CLIENT_HEADER_SIG_LEN,
+		"Wrong signature length in header" },
+	{ ERROR_ESBC_CLIENT_HEADER_KEY_LEN_NOT_TWICE_SIG_LEN,
+		"Public key length not twice of signature length" },
+	{ ERROR_ESBC_CLIENT_HEADER_KEY_MOD_1,
+		"Public key Modulus most significant bit not set" },
+	{ ERROR_ESBC_CLIENT_HEADER_KEY_MOD_2,
+		"Public key Modulus in header not odd" },
+	{ ERROR_ESBC_CLIENT_HEADER_SIG_KEY_MOD,
+		"Signature not less than modulus" },
+	{ ERROR_ESBC_CLIENT_HEADER_SG_ESBC_EP,
+		"Entry point not in allowed space or one of the SG entries" },
+	{ ERROR_ESBC_CLIENT_HASH_COMPARE_KEY,
+		"Public key hash comparison failed" },
+	{ ERROR_ESBC_CLIENT_HASH_COMPARE_EM,
+		"RSA verification failed" },
+	{ ERROR_ESBC_CLIENT_SSM_TRUSTSTS,
+		"SNVS not in TRUSTED state" },
+	{ ERROR_ESBC_CLIENT_BAD_ADDRESS,
+		"Bad address error" },
+	{ ERROR_ESBC_CLIENT_MISC,
+		"Miscallaneous error" },
+	{ ERROR_ESBC_CLIENT_HEADER_SG,
+		"No SG support"  },
+	{ ERROR_ESBC_CLIENT_HEADER_IMG_SIZE,
+		"Invalid Image size"  },
+	{ ERROR_ESBC_WRONG_CMD,
+		"Unknown cmd/Wrong arguments. Core in infinite loop"},
+	{ ERROR_ESBC_MISSING_BOOTM,
+		"Bootm command missing from bootscript" },
+	{ ERROR_ESBC_CLIENT_HEADER_KEY_REVOKED,
+		"Selected key is revoked" },
+	{ ERROR_ESBC_CLIENT_HEADER_INVALID_SRK_NUM_ENTRY,
+		"Wrong key entry" },
+	{ ERROR_ESBC_CLIENT_HEADER_INVALID_KEY_NUM,
+		"Wrong key is selected" },
+	{ ERROR_ESBC_CLIENT_HEADER_INV_SRK_ENTRY_KEYLEN,
+		"Wrong srk public key len in header" },
+	{ ERROR_ESBC_CLIENT_HEADER_IE_KEY_REVOKED,
+		"Selected IE key is revoked" },
+	{ ERROR_ESBC_CLIENT_HEADER_INVALID_IE_NUM_ENTRY,
+		"Wrong key entry in IE Table" },
+	{ ERROR_ESBC_CLIENT_HEADER_INVALID_IE_KEY_NUM,
+		"Wrong IE key is selected" },
+	{ ERROR_ESBC_CLIENT_HEADER_INV_IE_ENTRY_KEYLEN,
+		"Wrong IE public key len in header" },
+	{ ERROR_IE_TABLE_NOT_FOUND,
+		"Information about IE Table missing" },
+	{ ERROR_ESBC_CLIENT_MAX, "NULL" }
+};
+
+void fsl_secboot_handle_error(int error);
+#endif