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monitor: Decode L2CAP features and fixed channels list

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This commit is contained in:
Marcel Holtmann 2012-11-10 15:37:33 +01:00
parent 07fea7fc3f
commit 2c71c128bf
1 changed files with 71 additions and 2 deletions
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73
monitor/l2cap.c
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@ -194,6 +194,75 @@ static void print_info_result(uint16_t result)
print_field("Result: %s (0x%4.4x)", str, btohs(result));
}
static struct {
uint8_t bit;
const char *str;
} features_table[] = {
{ 0, "Flow control mode" },
{ 1, "Retransmission mode" },
{ 2, "Bi-directional QoS" },
{ 3, "Enhanced Retransmission Mode" },
{ 4, "Streaming Mode" },
{ 5, "FCS Option" },
{ 6, "Extended Flow Specification for BR/EDR" },
{ 7, "Fixed Channels" },
{ 8, "Extended Window Size" },
{ 9, "Unicast Connectionless Data Reception" },
{ 31, "Reserved for feature mask extension" },
{ }
};
static void print_features(uint32_t features)
{
uint32_t mask = features;
int i;
print_field("Features: 0x%8.8x", features);
for (i = 0; features_table[i].str; i++) {
if (features & (1 << features_table[i].bit)) {
print_field(" %s", features_table[i].str);
mask &= ~(1 << features_table[i].bit);
}
}
if (mask)
print_field(" Unknown features (0x%8.8x)", mask);
}
static struct {
uint16_t cid;
const char *str;
} channels_table[] = {
{ 0x0000, "Null identifier" },
{ 0x0001, "L2CAP Signaling (BR/EDR)" },
{ 0x0002, "Connectionless reception" },
{ 0x0003, "AMP Manager Protocol" },
{ 0x0004, "Attribute Protocol" },
{ 0x0005, "L2CAP Signaling (LE)" },
{ 0x0006, "Security Manager" },
{ 0x003f, "AMP Test Manager" },
{ }
};
static void print_channels(uint64_t channels)
{
uint64_t mask = channels;
int i;
print_field("Channels: 0x%16.16" PRIu64, channels);
for (i = 0; channels_table[i].str; i++) {
if (channels & (1 << channels_table[i].cid)) {
print_field(" %s", channels_table[i].str);
mask &= ~(1 << channels_table[i].cid);
}
}
if (mask)
print_field(" Unknown channels (0x%8.8" PRIu64 ")", mask);
}
static void sig_cmd_reject(const void *data, uint16_t size)
{
const struct bt_l2cap_pdu_cmd_reject *pdu = data;
@ -341,7 +410,7 @@ static void sig_info_rsp(const void *data, uint16_t size)
break;
}
features = bt_get_le32(data);
print_field("Features: 0x%8.8x", features);
print_features(features);
break;
case 0x0003:
if (size != 8) {
@ -350,7 +419,7 @@ static void sig_info_rsp(const void *data, uint16_t size)
break;
}
channels = bt_get_le64(data);
print_field("Channels: 0x%16.16" PRIu64, channels);
print_channels(channels);
break;
default:
packet_hexdump(data, size);