[PATCH BlueZ v3 2/6] btio: Add support for getting the Encryption Key Size via btio
From: Vinicius Costa Gomes <hidden>
Date: 2012-01-24 13:57:19
Subsystem:
the rest · Maintainer:
Linus Torvalds
Some profiles specify some restriction depending on the length of the key used to encrypt the link, this adds an way to retrieve that value from the kernel. --- btio/btio.c | 19 +++++++++++++++++++ btio/btio.h | 1 + 2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/btio/btio.c b/btio/btio.c
index a45a9cc..77ddb1d 100644
--- a/btio/btio.c
+++ b/btio/btio.c@@ -511,6 +511,21 @@ static int set_priority(int sock, uint32_t prio) return 0; } +static gboolean get_key_size(int sock, int *size, GError **err) +{ + struct bt_security sec; + socklen_t len; + + memset(&sec, 0, sizeof(sec)); + len = sizeof(sec); + if (getsockopt(sock, SOL_BLUETOOTH, BT_SECURITY, &sec, &len) == 0) { + *size = sec.key_size; + return TRUE; + } + + return FALSE; +} + static gboolean l2cap_set(int sock, int sec_level, uint16_t imtu, uint16_t omtu, uint8_t mode, int master, int flushable, uint32_t priority, GError **err)
@@ -875,6 +890,10 @@ static gboolean l2cap_get(int sock, GError **err, BtIOOption opt1, va_arg(args, int *), err)) return FALSE; break; + case BT_IO_OPT_KEY_SIZE: + if (!get_key_size(sock, va_arg(args, int *), err)) + return FALSE; + break; case BT_IO_OPT_PSM: *(va_arg(args, uint16_t *)) = src.l2_psm ? btohs(src.l2_psm) : btohs(dst.l2_psm);
diff --git a/btio/btio.h b/btio/btio.h
index ae55b61..7e3e130 100644
--- a/btio/btio.h
+++ b/btio/btio.h@@ -52,6 +52,7 @@ typedef enum { BT_IO_OPT_DEST_BDADDR, BT_IO_OPT_DEFER_TIMEOUT, BT_IO_OPT_SEC_LEVEL, + BT_IO_OPT_KEY_SIZE, BT_IO_OPT_CHANNEL, BT_IO_OPT_SOURCE_CHANNEL, BT_IO_OPT_DEST_CHANNEL,
--
1.7.8.1