From 130ec73e48a959f397856808fdd64d3b0084a3d2 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 11 Jun 2008 03:22:14 +0000
Subject: Retrieve link key type together with the key itself

---
 hcid/hcid.h     | 4 ++--
 hcid/security.c | 6 ++++--
 hcid/storage.c  | 9 +++++++--
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/hcid/hcid.h b/hcid/hcid.h
index 099357f0..8a4c0f48 100644
--- a/hcid/hcid.h
+++ b/hcid/hcid.h
@@ -202,8 +202,8 @@ int write_version_info(bdaddr_t *local, bdaddr_t *peer, uint16_t manufacturer, u
 int write_features_info(bdaddr_t *local, bdaddr_t *peer, unsigned char *features);
 int write_lastseen_info(bdaddr_t *local, bdaddr_t *peer, struct tm *tm);
 int write_lastused_info(bdaddr_t *local, bdaddr_t *peer, struct tm *tm);
-int write_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, int type, int length);
-int read_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key);
+int write_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, uint8_t type, int length);
+int read_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, uint8_t *type);
 int read_pin_length(bdaddr_t *local, bdaddr_t *peer);
 int read_pin_code(bdaddr_t *local, bdaddr_t *peer, char *pin);
 gboolean read_trust(const bdaddr_t *local, const char *addr, const char *service);
diff --git a/hcid/security.c b/hcid/security.c
index b4520745..5a395055 100644
--- a/hcid/security.c
+++ b/hcid/security.c
@@ -278,17 +278,19 @@ static void link_key_request(int dev, bdaddr_t *sba, bdaddr_t *dba)
 {
 	unsigned char key[16];
 	char sa[18], da[18];
+	uint8_t type;
 	int err;
 
 	ba2str(sba, sa); ba2str(dba, da);
 	info("link_key_request (sba=%s, dba=%s)", sa, da);
 
-	err = read_link_key(sba, dba, key);
+	err = read_link_key(sba, dba, key, &type);
 	if (err < 0) {
 		/* Link key not found */
 		hci_send_cmd(dev, OGF_LINK_CTL, OCF_LINK_KEY_NEG_REPLY, 6, dba);
 	} else {
 		/* Link key found */
+		debug("Link key with type %d", type);
 		link_key_reply_cp lr;
 		memcpy(lr.link_key, key, 16);
 		bacpy(&lr.bdaddr, dba);
@@ -477,7 +479,7 @@ static void pin_code_request(int dev, bdaddr_t *sba, bdaddr_t *dba)
 	pinlen = read_pin_code(sba, dba, pin);
 
 	if (pairing == HCID_PAIRING_ONCE) {
-		err = read_link_key(sba, dba, key);
+		err = read_link_key(sba, dba, key, NULL);
 		if (!err) {
 			ba2str(dba, da);
 			error("PIN code request for already paired device %s", da);
diff --git a/hcid/storage.c b/hcid/storage.c
index 4dbf8a94..595e9a22 100644
--- a/hcid/storage.c
+++ b/hcid/storage.c
@@ -433,7 +433,7 @@ int write_lastused_info(bdaddr_t *local, bdaddr_t *peer, struct tm *tm)
 	return textfile_put(filename, addr, str);
 }
 
-int write_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, int type, int length)
+int write_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, uint8_t type, int length)
 {
 	char filename[PATH_MAX + 1], addr[18], str[38];
 	int i;
@@ -461,7 +461,7 @@ int write_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, int type
 	return textfile_put(filename, addr, str);
 }
 
-int read_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key)
+int read_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key, uint8_t *type)
 {
 	char filename[PATH_MAX + 1], addr[18], tmp[3], *str;
 	int i;
@@ -479,6 +479,11 @@ int read_link_key(bdaddr_t *local, bdaddr_t *peer, unsigned char *key)
 		key[i] = (uint8_t) strtol(tmp, NULL, 16);
 	}
 
+	if (type) {
+		memcpy(tmp, str + 33, 2);
+		*type = (uint8_t) strtol(tmp, NULL, 10);
+	}
+
 	free(str);
 
 	return 0;
-- 
cgit