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https://git.kernel.org/pub/scm/bluetooth/bluez.git
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sdp: Upgrade datatype SEQ8 to SEQ16 when data size is greater than 256
Fixes a bug where the complete sequence data is written, but the size is truncated to one byte.
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parent
06c25421af
commit
f8b977a776
18
lib/sdp.c
18
lib/sdp.c
@ -786,23 +786,29 @@ static int sdp_gen_buffer(sdp_buf_t *buf, sdp_data_t *d)
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int sdp_gen_pdu(sdp_buf_t *buf, sdp_data_t *d)
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{
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uint32_t pdu_size = 0, data_size = 0;
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uint32_t pdu_size, data_size;
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unsigned char *src = NULL, is_seq = 0, is_alt = 0;
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uint8_t dtd = d->dtd;
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uint16_t u16;
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uint32_t u32;
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uint64_t u64;
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uint128_t u128;
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uint8_t *seqp = buf->data + buf->data_size;
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uint32_t orig_data_size = buf->data_size;
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pdu_size = sdp_get_data_type_size(dtd);
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recalculate:
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pdu_size = sdp_get_data_type_size(d->dtd);
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buf->data_size += pdu_size;
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data_size = sdp_get_data_size(buf, d);
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if (data_size > UCHAR_MAX && d->dtd == SDP_SEQ8) {
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buf->data_size = orig_data_size;
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d->dtd = SDP_SEQ16;
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goto recalculate;
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}
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*seqp = dtd;
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*seqp = d->dtd;
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switch (dtd) {
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switch (d->dtd) {
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case SDP_DATA_NIL:
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break;
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case SDP_UINT8:
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@ -884,7 +890,7 @@ int sdp_gen_pdu(sdp_buf_t *buf, sdp_data_t *d)
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if (src && buf->buf_size >= buf->data_size + data_size) {
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memcpy(buf->data + buf->data_size, src, data_size);
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buf->data_size += data_size;
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} else if (dtd != SDP_DATA_NIL) {
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} else if (d->dtd != SDP_DATA_NIL) {
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SDPDBG("Gen PDU : Can't copy from invalid source or dest\n");
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}
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}
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