add PublicKey.xpub field

firmware/fsm.c

@@ -273,7 +273,8 @@ void fsm_msgGetPublicKey(GetPublicKey *msg)
 	resp->node.has_public_key = true;
 	resp->node.public_key.size = 33;
 	memcpy(resp->node.public_key.bytes, node->public_key, 33);
-
+	resp->has_xpub = true;
+	hdnode_serialize_public(node, resp->xpub);
 	msg_write(MessageType_MessageType_PublicKey, resp);
 	layoutHome();
 }

firmware/protob/messages.options

@@ -26,6 +26,8 @@ Entropy.entropy				max_size:1024
 
 GetPublicKey.address_n			max_count:8
 
+PublicKey.xpub				max_size:113
+
 GetAddress.address_n			max_count:8
 GetAddress.coin_name			max_size:17
 

firmware/protob/messages.pb.c

@@ -120,8 +120,9 @@ const pb_field_t GetPublicKey_fields[2] = {
     PB_LAST_FIELD
 };
 
-const pb_field_t PublicKey_fields[2] = {
+const pb_field_t PublicKey_fields[3] = {
     PB_FIELD2(  1, MESSAGE , REQUIRED, STATIC  , FIRST, PublicKey, node, node, &HDNodeType_fields),
+    PB_FIELD2(  2, STRING  , OPTIONAL, STATIC  , OTHER, PublicKey, xpub, node, 0),
     PB_LAST_FIELD
 };
 

firmware/protob/messages.pb.h

@@ -364,6 +364,8 @@ typedef struct _Ping {
 
 typedef struct _PublicKey {
     HDNodeType node;
+    bool has_xpub;
+    char xpub[113];
 } PublicKey;
 
 typedef struct _RecoveryDevice {
@@ -568,6 +570,7 @@ extern const char SimpleSignTx_coin_name_default[17];
 #define Ping_pin_protection_tag                  3
 #define Ping_passphrase_protection_tag           4
 #define PublicKey_node_tag                       1
+#define PublicKey_xpub_tag                       2
 #define RecoveryDevice_word_count_tag            1
 #define RecoveryDevice_passphrase_protection_tag 2
 #define RecoveryDevice_pin_protection_tag        3
@@ -621,7 +624,7 @@ extern const pb_field_t PassphraseAck_fields[2];
 extern const pb_field_t GetEntropy_fields[2];
 extern const pb_field_t Entropy_fields[2];
 extern const pb_field_t GetPublicKey_fields[2];
-extern const pb_field_t PublicKey_fields[2];
+extern const pb_field_t PublicKey_fields[3];
 extern const pb_field_t GetAddress_fields[3];
 extern const pb_field_t Address_fields[2];
 extern const pb_field_t WipeDevice_fields[1];
@@ -671,7 +674,7 @@ extern const pb_field_t DebugLinkLog_fields[4];
 #define GetEntropy_size                          6
 #define Entropy_size                             1027
 #define GetPublicKey_size                        48
-#define PublicKey_size                           (6 + HDNodeType_size)
+#define PublicKey_size                           (121 + HDNodeType_size)
 #define GetAddress_size                          67
 #define Address_size                             37
 #define WipeDevice_size                          0

trezor-common

@@ -1 +1 @@
-Subproject commit fc98712da5c260f3828dab703880eb5e9da00580
+Subproject commit ce8e99465ea1fbcbdc5e7b477cfdab73244a444d