From 78a239bf2c64c9e37c21b2ddabbc0d76ec599afb Mon Sep 17 00:00:00 2001
From: Martin Szulecki
Date: Mon, 18 Nov 2013 22:51:28 +0100
Subject: Split nonce retrieval into ApNonce and SepNonce for DFU and Recovery
 modes

---
 src/dfu.c            | 25 +++++++++++++++++++++----
 src/dfu.h            |  3 ++-
 src/idevicerestore.c |  4 ++--
 src/recovery.c       | 21 +++++++++++++++++++--
 src/recovery.h       |  3 ++-
 5 files changed, 46 insertions(+), 10 deletions(-)

(limited to 'src')

diff --git a/src/dfu.c b/src/dfu.c
index 9393fe8..5cea9ad 100644
--- a/src/dfu.c
+++ b/src/dfu.c
@@ -239,7 +239,7 @@ int dfu_get_cpid(struct idevicerestore_client_t* client, unsigned int* cpid) {
 	return 0;
 }
 
-int dfu_get_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size) {
+int dfu_get_ap_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size) {
 	irecv_error_t dfu_error = IRECV_E_SUCCESS;
 
 	if(client->dfu == NULL) {
@@ -248,7 +248,24 @@ int dfu_get_nonce(struct idevicerestore_client_t* client, unsigned char** nonce,
 		}
 	}
 
-	dfu_error = irecv_get_nonce(client->dfu->client, nonce, nonce_size);
+	dfu_error = irecv_get_nonce_with_tag(client->dfu->client, "NONC", nonce, nonce_size);
+	if (dfu_error != IRECV_E_SUCCESS) {
+		return -1;
+	}
+
+	return 0;
+}
+
+int dfu_get_sep_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size) {
+	irecv_error_t dfu_error = IRECV_E_SUCCESS;
+
+	if(client->dfu == NULL) {
+		if (dfu_client_new(client) < 0) {
+			return -1;
+		}
+	}
+
+	dfu_error = irecv_get_nonce_with_tag(client->dfu->client, "SNON", nonce, nonce_size);
 	if (dfu_error != IRECV_E_SUCCESS) {
 		return -1;
 	}
@@ -300,8 +317,8 @@ int dfu_enter_recovery(struct idevicerestore_client_t* client, plist_t build_ide
 		unsigned char* nonce = NULL;
 		int nonce_size = 0;
 		int nonce_changed = 0;
-		if (dfu_get_nonce(client, &nonce, &nonce_size) < 0) {
-			error("ERROR: Unable to get nonce from device!\n");
+		if (dfu_get_ap_nonce(client, &nonce, &nonce_size) < 0) {
+			error("ERROR: Unable to get ApNonce from device!\n");
 			return -1;
 		}
 
diff --git a/src/dfu.h b/src/dfu.h
index 8b57022..36badb2 100644
--- a/src/dfu.h
+++ b/src/dfu.h
@@ -44,7 +44,8 @@ const char* dfu_check_product_type(struct idevicerestore_client_t* client);
 int dfu_send_buffer(struct idevicerestore_client_t* client, unsigned char* buffer, unsigned int size);
 int dfu_send_component(struct idevicerestore_client_t* client, plist_t build_identity, const char* component);
 int dfu_get_cpid(struct idevicerestore_client_t* client, unsigned int* cpid);
-int dfu_get_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size);
+int dfu_get_ap_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size);
+int dfu_get_sep_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size);
 int dfu_enter_recovery(struct idevicerestore_client_t* client, plist_t build_identity);
 
 
diff --git a/src/idevicerestore.c b/src/idevicerestore.c
index d1f3c00..9bf37e0 100644
--- a/src/idevicerestore.c
+++ b/src/idevicerestore.c
@@ -1273,14 +1273,14 @@ int get_ap_nonce(struct idevicerestore_client_t* client, unsigned char** nonce,
 		break;
 	case MODE_DFU:
 		info("in dfu mode... ");
-		if (dfu_get_nonce(client, nonce, nonce_size) < 0) {
+		if (dfu_get_ap_nonce(client, nonce, nonce_size) < 0) {
 			info("failed\n");
 			return -1;
 		}
 		break;
 	case MODE_RECOVERY:
 		info("in recovery mode... ");
-		if (recovery_get_nonce(client, nonce, nonce_size) < 0) {
+		if (recovery_get_ap_nonce(client, nonce, nonce_size) < 0) {
 			info("failed\n");
 			return -1;
 		}
diff --git a/src/recovery.c b/src/recovery.c
index e4575fc..42bb234 100644
--- a/src/recovery.c
+++ b/src/recovery.c
@@ -461,7 +461,7 @@ int recovery_get_ecid(struct idevicerestore_client_t* client, uint64_t* ecid) {
 	return 0;
 }
 
-int recovery_get_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size) {
+int recovery_get_ap_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size) {
 	irecv_error_t recovery_error = IRECV_E_SUCCESS;
 
 	if(client->recovery == NULL) {
@@ -470,7 +470,24 @@ int recovery_get_nonce(struct idevicerestore_client_t* client, unsigned char** n
 		}
 	}
 
-	recovery_error = irecv_get_nonce(client->recovery->client, nonce, nonce_size);
+	recovery_error = irecv_get_nonce_with_tag(client->recovery->client, "NONC", nonce, nonce_size);
+	if (recovery_error != IRECV_E_SUCCESS) {
+		return -1;
+	}
+
+	return 0;
+}
+
+int recovery_get_sep_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size) {
+	irecv_error_t recovery_error = IRECV_E_SUCCESS;
+
+	if(client->recovery == NULL) {
+		if (recovery_client_new(client) < 0) {
+			return -1;
+		}
+	}
+
+	recovery_error = irecv_get_nonce_with_tag(client->recovery->client, "SNON", nonce, nonce_size);
 	if (recovery_error != IRECV_E_SUCCESS) {
 		return -1;
 	}
diff --git a/src/recovery.h b/src/recovery.h
index d9b4597..d1fd71e 100644
--- a/src/recovery.h
+++ b/src/recovery.h
@@ -54,7 +54,8 @@ int recovery_send_reset(struct idevicerestore_client_t* client);
 int recovery_send_ticket(struct idevicerestore_client_t* client);
 int recovery_set_autoboot(struct idevicerestore_client_t* client, int enable);
 int recovery_get_ecid(struct idevicerestore_client_t* client, uint64_t* ecid);
-int recovery_get_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size);
+int recovery_get_ap_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size);
+int recovery_get_sep_nonce(struct idevicerestore_client_t* client, unsigned char** nonce, int* nonce_size);
 int recovery_get_cpid(struct idevicerestore_client_t* client, uint32_t* cpid);
 int recovery_get_bdid(struct idevicerestore_client_t* client, uint32_t* bdid);
 
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