diff mbox series

[Bluez,v2,1/3] adapter: Use PeripheralLongTermKey to store LTK

Message ID 20211103170206.Bluez.v2.1.I515833d2764b8ec2ac2bb1f87313de80ebb497cd@changeid (mailing list archive)
State Accepted
Delegated to: Luiz Von Dentz
Headers show
Series [Bluez,v2,1/3] adapter: Use PeripheralLongTermKey to store LTK | expand

Checks

Context Check Description
tedd_an/checkpatch success Checkpatch PASS
tedd_an/gitlint success Gitlint PASS
tedd_an/setupell success Setup ELL PASS
tedd_an/buildprep success Build Prep PASS
tedd_an/build success Build Configuration PASS
tedd_an/makecheck success Make Check PASS
tedd_an/makedistcheck success Make Distcheck PASS
tedd_an/build_extell success Build External ELL PASS
tedd_an/build_extell_make success Build Make with External ELL PASS

Commit Message

Archie Pusaka Nov. 3, 2021, 9:02 a.m. UTC 
From: Archie Pusaka <apusaka@chromium.org>

Introducing PeripheralLongTermKey group for storing LTK info to
replace the less inclusive term. Currently we still need to write/read
from both to ensure smooth transition, but later we should deprecate
the old term.

Reviewed-by: Sonny Sasaka <sonnysasaka@chromium.org>
---

Changes in v2:
- Add reason to keep duplicates as comment

 src/adapter.c | 47 ++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 9 deletions(-)

Comments

bluez.test.bot@gmail.com Nov. 3, 2021, 9:38 a.m. UTC | #1 
This is automated email and please do not reply to this email!

Dear submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
This is a CI test results with your patch series:
PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=574639

---Test result---

Test Summary:
CheckPatch                    PASS      4.46 seconds
GitLint                       PASS      3.02 seconds
Prep - Setup ELL              PASS      49.79 seconds
Build - Prep                  PASS      0.54 seconds
Build - Configure             PASS      9.54 seconds
Build - Make                  PASS      216.71 seconds
Make Check                    PASS      9.87 seconds
Make Distcheck                PASS      251.91 seconds
Build w/ext ELL - Configure   PASS      8.81 seconds
Build w/ext ELL - Make        PASS      198.37 seconds



---
Regards,
Linux Bluetooth
Luiz Augusto von Dentz Nov. 4, 2021, 12:39 a.m. UTC | #2 
Hi Archie,

On Wed, Nov 3, 2021 at 2:39 AM <bluez.test.bot@gmail.com> wrote:
>
> This is automated email and please do not reply to this email!
>
> Dear submitter,
>
> Thank you for submitting the patches to the linux bluetooth mailing list.
> This is a CI test results with your patch series:
> PW Link:https://patchwork.kernel.org/project/bluetooth/list/?series=574639
>
> ---Test result---
>
> Test Summary:
> CheckPatch                    PASS      4.46 seconds
> GitLint                       PASS      3.02 seconds
> Prep - Setup ELL              PASS      49.79 seconds
> Build - Prep                  PASS      0.54 seconds
> Build - Configure             PASS      9.54 seconds
> Build - Make                  PASS      216.71 seconds
> Make Check                    PASS      9.87 seconds
> Make Distcheck                PASS      251.91 seconds
> Build w/ext ELL - Configure   PASS      8.81 seconds
> Build w/ext ELL - Make        PASS      198.37 seconds
>
>
>
> ---
> Regards,
> Linux Bluetooth

Applied, thanks.
diff mbox series

Patch

diff --git a/src/adapter.c b/src/adapter.c
index d0d38621b8..114ae84c10 100644
--- a/src/adapter.c
+++ b/src/adapter.c
@@ -3868,7 +3868,14 @@  static struct smp_ltk_info *get_peripheral_ltk_info(GKeyFile *key_file,
 
 	DBG("%s", peer);
 
-	ltk = get_ltk(key_file, peer, bdaddr_type, "SlaveLongTermKey");
+	/* Peripheral* is the proper term, but for now read both entries
+	 * so it won't break when user up/downgrades. Remove the other
+	 * term after a few releases.
+	 */
+	ltk = get_ltk(key_file, peer, bdaddr_type, "PeripheralLongTermKey");
+	if (!ltk)
+		ltk = get_ltk(key_file, peer, bdaddr_type, "SlaveLongTermKey");
+
 	if (ltk)
 		ltk->central = false;
 
@@ -8415,13 +8422,12 @@  static void new_link_key_callback(uint16_t index, uint16_t length,
 	bonding_complete(adapter, &addr->bdaddr, addr->type, 0);
 }
 
-static void store_longtermkey(struct btd_adapter *adapter, const bdaddr_t *peer,
+static void store_ltk_group(struct btd_adapter *adapter, const bdaddr_t *peer,
 				uint8_t bdaddr_type, const unsigned char *key,
-				uint8_t central, uint8_t authenticated,
+				const char *group, uint8_t authenticated,
 				uint8_t enc_size, uint16_t ediv,
 				uint64_t rand)
 {
-	const char *group = central ? "LongTermKey" : "SlaveLongTermKey";
 	char device_addr[18];
 	char filename[PATH_MAX];
 	GKeyFile *key_file;
@@ -8431,11 +8437,6 @@  static void store_longtermkey(struct btd_adapter *adapter, const bdaddr_t *peer,
 	char *str;
 	int i;
 
-	if (central != 0x00 && central != 0x01) {
-		error("Unsupported LTK type %u", central);
-		return;
-	}
-
 	ba2str(peer, device_addr);
 
 	snprintf(filename, PATH_MAX, STORAGEDIR "/%s/%s/info",
@@ -8475,6 +8476,34 @@  static void store_longtermkey(struct btd_adapter *adapter, const bdaddr_t *peer,
 	g_key_file_free(key_file);
 }
 
+static void store_longtermkey(struct btd_adapter *adapter, const bdaddr_t *peer,
+				uint8_t bdaddr_type, const unsigned char *key,
+				uint8_t central, uint8_t authenticated,
+				uint8_t enc_size, uint16_t ediv,
+				uint64_t rand)
+{
+	if (central != 0x00 && central != 0x01) {
+		error("Unsupported LTK type %u", central);
+		return;
+	}
+
+	if (central) {
+		store_ltk_group(adapter, peer, bdaddr_type, key, "LongTermKey",
+				authenticated, enc_size, ediv, rand);
+	} else {
+		/* Peripheral* is the proper term, but for now keep duplicates
+		 * so it won't break when user up/downgrades. Remove the other
+		 * term after a few releases.
+		 */
+		store_ltk_group(adapter, peer, bdaddr_type, key,
+				"PeripheralLongTermKey", authenticated,
+				enc_size, ediv, rand);
+		store_ltk_group(adapter, peer, bdaddr_type, key,
+				"SlaveLongTermKey", authenticated,
+				enc_size, ediv, rand);
+	}
+}
+
 static void new_long_term_key_callback(uint16_t index, uint16_t length,
 					const void *param, void *user_data)
 {