diff options
| author | Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl> | 2015-11-22 21:20:29 +0100 |
|---|---|---|
| committer | Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2015-12-01 10:42:28 +0200 |
| commit | 43194170956820076bfb543606fee3809a5011a8 (patch) | |
| tree | ab57b0a573aea164c9d90615ac8b003aa28099f5 | |
| parent | 8e36432fde853262c241abb283f4435c7928239f (diff) | |
| download | bluez-43194170956820076bfb543606fee3809a5011a8.tar.gz | |
monitor/avdtp: Decode basic Content Protection capabilities
> ACL Data RX: Handle 256 flags 0x02 dlen 20
Channel: 66 len 16 [PSM 25 mode 0] {chan 2}
AVDTP: Get Capabilities (0x02) Response Accept (0x02) type 0x00 label 1 nosp 0
Service Category: Media Transport (0x01)
Service Category: Media Codec (0x07)
Media Type: Audio (0x00)
Media Codec: SBC (0x00)
3f ff 02 35 ?..5
Service Category: Content Protection (0x04)
Content Protection Type: SCMS-T (0x0002)
| -rw-r--r-- | monitor/avdtp.c | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/monitor/avdtp.c b/monitor/avdtp.c index 8041d35f6..f810f0e68 100644 --- a/monitor/avdtp.c +++ b/monitor/avdtp.c @@ -199,6 +199,18 @@ static const char *mediacodec2str(uint8_t codec) } } +static const char *cptype2str(uint8_t cp) +{ + switch (cp) { + case 0x0001: + return "DTCP"; + case 0x0002: + return "SCMS-T"; + default: + return "Reserved"; + } +} + static const char *servicecat2str(uint8_t service_cat) { switch (service_cat) { @@ -236,6 +248,31 @@ static bool avdtp_reject_common(struct avdtp_frame *avdtp_frame) return true; } +static bool service_content_protection(struct avdtp_frame *avdtp_frame, + uint8_t losc) +{ + struct l2cap_frame *frame = &avdtp_frame->l2cap_frame; + uint16_t type = 0; + + if (losc < 2) + return false; + + if (!l2cap_frame_get_le16(frame, &type)) + return false; + + losc -= 2; + + print_field("%*cContent Protection Type: %s (0x%04x)", 2, ' ', + cptype2str(type), type); + + /* TODO: decode protection specific information */ + packet_hexdump(frame->data, losc); + + l2cap_frame_pull(frame, frame, losc); + + return true; +} + static bool service_media_codec(struct avdtp_frame *avdtp_frame, uint8_t losc) { struct l2cap_frame *frame = &avdtp_frame->l2cap_frame; @@ -281,6 +318,10 @@ static bool decode_capabilities(struct avdtp_frame *avdtp_frame) return false; switch (service_cat) { + case AVDTP_CONTENT_PROTECTION: + if (!service_content_protection(avdtp_frame, losc)) + return false; + break; case AVDTP_MEDIA_CODEC: if (!service_media_codec(avdtp_frame, losc)) return false; @@ -288,7 +329,6 @@ static bool decode_capabilities(struct avdtp_frame *avdtp_frame) case AVDTP_MEDIA_TRANSPORT: case AVDTP_REPORTING: case AVDTP_RECOVERY: - case AVDTP_CONTENT_PROTECTION: case AVDTP_HEADER_COMPRESSION: case AVDTP_MULTIPLEXING: case AVDTP_DELAY_REPORTING: |