static void avrcp_displayable_charset(int level, struct frame *frm,
uint8_t ctype, uint16_t len)
{
uint8_t num;
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
return;
p_indent(level, frm);
if (len < 2) {
printf("PDU Malformed\n");
raw_dump(level, frm);
return;
}
num = get_u8(frm);
printf("CharsetCount: 0x%02x\n", num);
for (; num > 0; num--) {
uint16_t charset;
p_indent(level, frm);
charset = get_u16(frm);
printf("CharsetID: 0x%04x (%s)\n", charset,
charset2str(charset));
}
}
static bool avrcp_displayable_charset(struct avctp_frame *avctp_frame,
uint8_t ctype, uint8_t len,
uint8_t indent)
{
struct l2cap_frame *frame = &avctp_frame->l2cap_frame;
uint8_t num;
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
return true;
if (!l2cap_frame_get_u8(frame, &num))
return false;
print_field("%*cCharsetCount: 0x%02x", (indent - 8), ' ', num);
for (; num > 0; num--) {
uint16_t charset;
if (!l2cap_frame_get_be16(frame, &charset))
return false;
print_field("%*cCharsetID: 0x%04x (%s)", (indent - 8),
' ', charset, charset2str(charset));
}
return true;
}
static void avrcp_get_element_attributes_dump(int level, struct frame *frm,
uint8_t ctype, uint16_t len,
uint8_t pt)
{
uint64_t id;
uint8_t num;
p_indent(level, frm);
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
if (len < 9) {
printf("PDU Malformed\n");
raw_dump(level, frm);
return;
}
id = get_u64(frm);
printf("Identifier: 0x%jx (%s)\n", id, id ? "Reserved" : "PLAYING");
p_indent(level, frm);
num = get_u8(frm);
printf("AttributeCount: 0x%02x\n", num);
for (; num > 0; num--) {
uint32_t attr;
p_indent(level, frm);
attr = get_u32(frm);
printf("Attribute: 0x%08x (%s)\n", attr, mediattr2str(attr));
}
return;
response:
if (pt == AVRCP_PACKET_TYPE_SINGLE || pt == AVRCP_PACKET_TYPE_START) {
if (len < 1) {
printf("PDU Malformed\n");
raw_dump(level, frm);
return;
}
num = get_u8(frm);
avrcp_continuing.num = num;
printf("AttributeCount: 0x%02x\n", num);
len--;
} else {
num = avrcp_continuing.num;
if (avrcp_continuing.size > 0) {
uint16_t size;
if (avrcp_continuing.size > len) {
size = len;
avrcp_continuing.size -= len;
} else {
size = avrcp_continuing.size;
avrcp_continuing.size = 0;
}
printf("ContinuingAttributeValue: ");
for (; size > 0; size--) {
uint8_t c = get_u8(frm);
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
len -= size;
}
}
while (num > 0 && len > 0) {
uint32_t attr;
uint16_t charset, attrlen;
p_indent(level, frm);
attr = get_u32(frm);
printf("Attribute: 0x%08x (%s)\n", attr, mediattr2str(attr));
p_indent(level, frm);
charset = get_u16(frm);
printf("CharsetID: 0x%04x (%s)\n", charset,
charset2str(charset));
p_indent(level, frm);
attrlen = get_u16(frm);
printf("AttributeValueLength: 0x%04x\n", attrlen);
len -= sizeof(attr) + sizeof(charset) + sizeof(attrlen);
num--;
p_indent(level, frm);
printf("AttributeValue: ");
for (; attrlen > 0 && len > 0; attrlen--, len--) {
uint8_t c = get_u8(frm);
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
if (attrlen > 0)
avrcp_continuing.size = attrlen;
}
avrcp_continuing.num = num;
}
static void avrcp_get_player_value_text_dump(int level, struct frame *frm,
uint8_t ctype, uint16_t len)
{
static uint8_t attr = 0; /* Remember attribute */
uint8_t num;
p_indent(level, frm);
if (len < 1) {
printf("PDU Malformed\n");
raw_dump(level, frm);
return;
}
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
attr = get_u8(frm);
printf("AttributeID: 0x%02x (%s)\n", attr, attr2str(attr));
p_indent(level, frm);
num = get_u8(frm);
printf("ValueCount: 0x%02x\n", num);
for (; num > 0; num--) {
uint8_t value;
p_indent(level, frm);
value = get_u8(frm);
printf("ValueID: 0x%02x (%s)\n", value,
value2str(attr, value));
}
return;
response:
num = get_u8(frm);
printf("ValueCount: 0x%02x\n", num);
for (; num > 0; num--) {
uint8_t value, len;
uint16_t charset;
p_indent(level, frm);
value = get_u8(frm);
printf("ValueID: 0x%02x (%s)\n", value,
value2str(attr, value));
p_indent(level, frm);
charset = get_u16(frm);
printf("CharsetID: 0x%04x (%s)\n", charset,
charset2str(charset));
p_indent(level, frm);
len = get_u8(frm);
printf("StringLength: 0x%02x\n", len);
p_indent(level, frm);
printf("String: ");
for (; len > 0; len--) {
uint8_t c = get_u8(frm);
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
}
}
static void avrcp_set_browsed_player(int level, struct frame *frm,
uint8_t ctype, uint16_t len)
{
uint32_t items;
uint16_t id, uids, charset;
uint8_t status, folders;
p_indent(level, frm);
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
if (len < 2) {
printf("PDU Malformed\n");
raw_dump(level, frm);
return;
}
id = get_u16(frm);
printf("PlayerID: 0x%04x (%u)", id, id);
return;
response:
if (len != 1 && len < 10) {
printf("PDU Malformed\n");
raw_dump(level, frm);
return;
}
status = get_u8(frm);
printf("Status: 0x%02x (%s)\n", status, error2str(status));
if (len == 1)
return;
p_indent(level, frm);
uids = get_u16(frm);
printf("UIDCounter: 0x%04x (%u)", uids, uids);
p_indent(level, frm);
items = get_u32(frm);
printf("Number of Items: 0x%04x (%u)", items, items);
p_indent(level, frm);
charset = get_u16(frm);
printf("CharsetID: 0x%04x (%s)\n", charset, charset2str(charset));
p_indent(level, frm);
folders = get_u8(frm);
printf("Folder Depth: 0x%02x (%u)", folders, folders);
for (; folders > 0; folders--) {
uint16_t len;
p_indent(level, frm);
len = get_u8(frm);
printf("Folder: ");
for (; len > 0; len--) {
uint8_t c = get_u8(frm);
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
}
}
static bool avrcp_get_player_value_text(struct avctp_frame *avctp_frame,
uint8_t ctype, uint8_t len,
uint8_t indent)
{
struct l2cap_frame *frame = &avctp_frame->l2cap_frame;
static uint8_t attr = 0;
uint8_t num;
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
if (!l2cap_frame_get_u8(frame, &attr))
return false;
print_field("%*cAttributeID: 0x%02x (%s)", (indent - 8), ' ',
attr, attr2str(attr));
if (!l2cap_frame_get_u8(frame, &num))
return false;
print_field("%*cValueCount: 0x%02x", (indent - 8), ' ', num);
for (; num > 0; num--) {
uint8_t value;
if (!l2cap_frame_get_u8(frame, &value))
return false;
print_field("%*cValueID: 0x%02x (%s)", (indent - 8),
' ', value, value2str(attr, value));
}
return true;
response:
if (!l2cap_frame_get_u8(frame, &num))
return false;
print_field("%*cValueCount: 0x%02x", (indent - 8), ' ', num);
for (; num > 0; num--) {
uint8_t value, len;
uint16_t charset;
if (!l2cap_frame_get_u8(frame, &value))
return false;
print_field("%*cValueID: 0x%02x (%s)", (indent - 8), ' ',
value, value2str(attr, value));
if (!l2cap_frame_get_be16(frame, &charset))
return false;
print_field("%*cCharsetIDID: 0x%02x (%s)", (indent - 8), ' ',
charset, charset2str(charset));
if (!l2cap_frame_get_u8(frame, &len))
return false;
print_field("%*cStringLength: 0x%02x", (indent - 8), ' ', len);
printf("String: ");
for (; len > 0; len--) {
uint8_t c;
if (!l2cap_frame_get_u8(frame, &c))
return false;
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
}
return true;
}
static bool avrcp_get_element_attributes(struct avctp_frame *avctp_frame,
uint8_t ctype, uint8_t len,
uint8_t indent)
{
struct l2cap_frame *frame = &avctp_frame->l2cap_frame;
uint64_t id;
uint8_t num;
if (ctype > AVC_CTYPE_GENERAL_INQUIRY)
goto response;
if (!l2cap_frame_get_be64(frame, &id))
return false;
print_field("%*cIdentifier: 0x%jx (%s)", (indent - 8), ' ',
id, id ? "Reserved" : "PLAYING");
if (!l2cap_frame_get_u8(frame, &num))
return false;
print_field("%*cAttributeCount: 0x%02x", (indent - 8), ' ', num);
for (; num > 0; num--) {
uint32_t attr;
if (!l2cap_frame_get_be32(frame, &attr))
return false;
print_field("%*cAttribute: 0x%08x (%s)", (indent - 8),
' ', attr, mediattr2str(attr));
}
return true;
response:
switch (avctp_frame->pt) {
case AVRCP_PACKET_TYPE_SINGLE:
case AVRCP_PACKET_TYPE_START:
if (!l2cap_frame_get_u8(frame, &num))
return false;
avrcp_continuing.num = num;
print_field("%*cAttributeCount: 0x%02x", (indent - 8),
' ', num);
len--;
break;
case AVRCP_PACKET_TYPE_CONTINUING:
case AVRCP_PACKET_TYPE_END:
num = avrcp_continuing.num;
if (avrcp_continuing.size > 0) {
uint16_t size;
if (avrcp_continuing.size > len) {
size = len;
avrcp_continuing.size -= len;
} else {
size = avrcp_continuing.size;
avrcp_continuing.size = 0;
}
printf("ContinuingAttributeValue: ");
for (; size > 0; size--) {
uint8_t c;
if (!l2cap_frame_get_u8(frame, &c))
goto failed;
printf("%1c", isprint(c) ? c : '.');
}
printf("\n");
len -= size;
}
break;
default:
goto failed;
}
while (num > 0 && len > 0) {
uint32_t attr;
uint16_t charset, attrlen;
if (!l2cap_frame_get_be32(frame, &attr))
goto failed;
print_field("%*cAttribute: 0x%08x (%s)", (indent - 8),
' ', attr, mediattr2str(attr));
if (!l2cap_frame_get_be16(frame, &charset))
goto failed;
print_field("%*cCharsetID: 0x%04x (%s)", (indent - 8),
' ', charset, charset2str(charset));
if (!l2cap_frame_get_be16(frame, &attrlen))
goto failed;
print_field("%*cAttributeValueLength: 0x%04x",
(indent - 8), ' ', attrlen);
len -= sizeof(attr) + sizeof(charset) + sizeof(attrlen);
num--;
print_field("%*cAttributeValue: ", (indent - 8), ' ');
for (; attrlen > 0 && len > 0; attrlen--, len--) {
uint8_t c;
if (!l2cap_frame_get_u8(frame, &c))
goto failed;
printf("%1c", isprint(c) ? c : '.');
}
if (attrlen > 0)
avrcp_continuing.size = attrlen;
}
avrcp_continuing.num = num;
return true;
failed:
avrcp_continuing.num = 0;
avrcp_continuing.size = 0;
return false;
}