int
ble_att_clt_rx_find_type_value(uint16_t conn_handle, struct os_mbuf **rxom)
{
#if !NIMBLE_OPT(ATT_CLT_FIND_TYPE)
return BLE_HS_ENOTSUP;
#endif
struct ble_att_find_type_value_hinfo hinfo;
int rc;
/* Reponse consists of a one-byte opcode (already verified) and a variable
* length Handles-Information-List field. Strip the opcode from the
* response.
*/
os_mbuf_adj(*rxom, BLE_ATT_FIND_TYPE_VALUE_RSP_BASE_SZ);
/* Parse the Handles-Information-List field, passing each entry to GATT. */
rc = 0;
while (OS_MBUF_PKTLEN(*rxom) > 0) {
rc = ble_att_clt_parse_find_type_value_hinfo(rxom, &hinfo);
if (rc != 0) {
break;
}
ble_gattc_rx_find_type_value_hinfo(conn_handle, &hinfo);
os_mbuf_adj(*rxom, BLE_ATT_FIND_TYPE_VALUE_HINFO_BASE_SZ);
}
/* Notify GATT client that the full response has been parsed. */
ble_gattc_rx_find_type_value_complete(conn_handle, rc);
return 0;
}
static int
nmgr_rsp_fragment(struct nmgr_transport *nt, struct nmgr_hdr *rsp_hdr,
struct os_mbuf *rsp, struct os_mbuf *req)
{
uint16_t mtu;
uint16_t rsplen;
uint16_t len ;
int rc;
len = 0;
mtu = nt->nt_get_mtu(req);
do {
len = OS_MBUF_PKTLEN(rsp);
if (len >= mtu) {
rsplen = mtu;
} else {
rsplen = len;
}
rc = nmgr_send_rspfrag(nt, rsp, req, rsplen);
if (rc) {
goto err;
}
os_mbuf_adj(rsp, rsplen);
} while (OS_MBUF_PKTLEN(rsp));
return MGMT_ERR_EOK;
err:
return rc;
}
int
ble_att_clt_rx_prep_write(uint16_t conn_handle, struct os_mbuf **rxom)
{
#if !NIMBLE_OPT(ATT_CLT_PREP_WRITE)
return BLE_HS_ENOTSUP;
#endif
struct ble_att_prep_write_cmd rsp;
uint16_t value_len;
void *value;
int rc;
/* Initialize some values in case of early error. */
memset(&rsp, 0, sizeof rsp);
value = NULL;
value_len = 0;
rc = ble_hs_misc_pullup_base(rxom, BLE_ATT_PREP_WRITE_CMD_BASE_SZ);
if (rc != 0) {
goto done;
}
ble_att_prep_write_rsp_parse((*rxom)->om_data, (*rxom)->om_len, &rsp);
/* Strip the base from the front of the response. */
os_mbuf_adj(*rxom, BLE_ATT_PREP_WRITE_CMD_BASE_SZ);
/* Copy the attribute data into the global ATT flat buffer. */
rc = ble_att_clt_copy_attr_to_flatbuf(*rxom, &value, &value_len);
done:
/* Notify GATT client that the full response has been parsed. */
ble_gattc_rx_prep_write_rsp(conn_handle, rc, &rsp, value, value_len);
return rc;
}
static int
ble_att_clt_parse_find_info_entry(struct os_mbuf **rxom, uint8_t rsp_format,
struct ble_att_find_info_idata *idata)
{
uint16_t uuid16;
int entry_len;
int rc;
switch (rsp_format) {
case BLE_ATT_FIND_INFO_RSP_FORMAT_16BIT:
entry_len = 2 + 2;
break;
case BLE_ATT_FIND_INFO_RSP_FORMAT_128BIT:
entry_len = 2 + 16;
break;
default:
return BLE_HS_EBADDATA;
}
rc = ble_hs_misc_pullup_base(rxom, entry_len);
if (rc != 0) {
return rc;
}
idata->attr_handle = le16toh((*rxom)->om_data);
switch (rsp_format) {
case BLE_ATT_FIND_INFO_RSP_FORMAT_16BIT:
uuid16 = le16toh((*rxom)->om_data + 2);
rc = ble_uuid_16_to_128(uuid16, idata->uuid128);
if (rc != 0) {
return BLE_HS_EBADDATA;
}
break;
case BLE_ATT_FIND_INFO_RSP_FORMAT_128BIT:
rc = os_mbuf_copydata(*rxom, 2, 16, idata->uuid128);
if (rc != 0) {
return BLE_HS_EBADDATA;
}
break;
default:
BLE_HS_DBG_ASSERT(0);
break;
}
os_mbuf_adj(*rxom, entry_len);
return 0;
}
int
ble_att_clt_rx_read_group_type(uint16_t conn_handle, struct os_mbuf **rxom)
{
#if !NIMBLE_OPT(ATT_CLT_READ_GROUP_TYPE)
return BLE_HS_ENOTSUP;
#endif
struct ble_att_read_group_type_adata adata;
struct ble_att_read_group_type_rsp rsp;
int rc;
rc = ble_hs_misc_pullup_base(rxom, BLE_ATT_READ_GROUP_TYPE_RSP_BASE_SZ);
if (rc != 0) {
goto done;
}
ble_att_read_group_type_rsp_parse((*rxom)->om_data, (*rxom)->om_len, &rsp);
/* Strip the base from the front of the response. */
os_mbuf_adj(*rxom, BLE_ATT_READ_GROUP_TYPE_RSP_BASE_SZ);
/* Parse the Attribute Data List field, passing each entry to GATT. */
while (OS_MBUF_PKTLEN(*rxom) > 0) {
rc = ble_att_clt_parse_read_group_type_adata(rxom, rsp.bagp_length,
&adata);
if (rc != 0) {
goto done;
}
ble_gattc_rx_read_group_type_adata(conn_handle, &adata);
os_mbuf_adj(*rxom, rsp.bagp_length);
}
done:
/* Notify GATT that the response is done being parsed. */
ble_gattc_rx_read_group_type_complete(conn_handle, rc);
return rc;
}
static int
host_hci_data_hdr_strip(struct os_mbuf *om, struct hci_data_hdr *hdr)
{
int rc;
rc = os_mbuf_copydata(om, 0, BLE_HCI_DATA_HDR_SZ, hdr);
if (rc != 0) {
return BLE_HS_EMSGSIZE;
}
/* Strip HCI ACL data header from the front of the packet. */
os_mbuf_adj(om, BLE_HCI_DATA_HDR_SZ);
hdr->hdh_handle_pb_bc = le16toh(&hdr->hdh_handle_pb_bc);
hdr->hdh_len = le16toh(&hdr->hdh_len);
return 0;
}
static int
ble_att_clt_tx_req_flags(uint16_t conn_handle, struct os_mbuf *txom,
ble_hs_conn_flags_t flags_on_success)
{
struct ble_l2cap_chan *chan;
struct ble_hs_conn *conn;
uint16_t total_len;
uint16_t mtu;
int extra_len;
int rc;
BLE_HS_DBG_ASSERT_EVAL(txom->om_len >= 1);
ble_att_inc_tx_stat(txom->om_data[0]);
ble_hs_lock();
rc = ble_att_conn_chan_find(conn_handle, &conn, &chan);
if (rc == 0) {
/* Reduce the size of the transmission to fit the connection's ATT
* MTU.
*/
total_len = OS_MBUF_PKTLEN(txom);
mtu = ble_l2cap_chan_mtu(chan);
extra_len = total_len - mtu;
if (extra_len > 0) {
os_mbuf_adj(txom, -extra_len);
}
rc = ble_l2cap_tx(conn, chan, txom);
txom = NULL;
if (rc == 0) {
conn->bhc_flags |= flags_on_success;
}
}
ble_hs_unlock();
os_mbuf_free_chain(txom);
return rc;
}
int
ble_att_clt_rx_find_info(uint16_t conn_handle, struct os_mbuf **om)
{
#if !NIMBLE_OPT(ATT_CLT_FIND_INFO)
return BLE_HS_ENOTSUP;
#endif
struct ble_att_find_info_idata idata;
struct ble_att_find_info_rsp rsp;
int rc;
rc = ble_hs_misc_pullup_base(om, BLE_ATT_FIND_INFO_RSP_BASE_SZ);
if (rc != 0) {
goto done;
}
ble_att_find_info_rsp_parse((*om)->om_data, (*om)->om_len, &rsp);
/* Strip the response base from the front of the mbuf. */
os_mbuf_adj((*om), BLE_ATT_FIND_INFO_RSP_BASE_SZ);
while (OS_MBUF_PKTLEN(*om) > 0) {
rc = ble_att_clt_parse_find_info_entry(om, rsp.bafp_format, &idata);
if (rc != 0) {
goto done;
}
/* Hand find-info entry to GATT. */
ble_gattc_rx_find_info_idata(conn_handle, &idata);
}
rc = 0;
done:
/* Notify GATT that response processing is done. */
ble_gattc_rx_find_info_complete(conn_handle, rc);
return rc;
}
int
ble_att_clt_rx_read_mult(uint16_t conn_handle, struct os_mbuf **rxom)
{
#if !NIMBLE_OPT(ATT_CLT_READ_MULT)
return BLE_HS_ENOTSUP;
#endif
uint16_t value_len;
void *value;
int rc;
/* Reponse consists of a one-byte opcode (already verified) and a variable
* length Attribute Value field. Strip the opcode from the response.
*/
os_mbuf_adj(*rxom, BLE_ATT_READ_MULT_RSP_BASE_SZ);
/* Copy the attribute data into the global ATT flat buffer. */
rc = ble_att_clt_copy_attr_to_flatbuf(*rxom, &value, &value_len);
/* Pass the Attribute Value field to GATT. */
ble_gattc_rx_read_mult_rsp(conn_handle, rc, value, value_len);
return rc;
}
/**
* ll tx pkt in proc
*
* Process ACL data packet input from host
*
* Context: Link layer task
*
*/
static void
ble_ll_tx_pkt_in(void)
{
uint16_t handle;
uint16_t length;
uint16_t pb;
struct os_mbuf_pkthdr *pkthdr;
struct os_mbuf *om;
/* Drain all packets off the queue */
while (STAILQ_FIRST(&g_ble_ll_data.ll_tx_pkt_q)) {
/* Get mbuf pointer from packet header pointer */
pkthdr = STAILQ_FIRST(&g_ble_ll_data.ll_tx_pkt_q);
om = (struct os_mbuf *)((uint8_t *)pkthdr - sizeof(struct os_mbuf));
/* Remove from queue */
STAILQ_REMOVE_HEAD(&g_ble_ll_data.ll_tx_pkt_q, omp_next);
/* Strip HCI ACL header to get handle and length */
handle = le16toh(om->om_data);
length = le16toh(om->om_data + 2);
os_mbuf_adj(om, sizeof(struct hci_data_hdr));
/* Do some basic error checking */
pb = handle & 0x3000;
if ((pkthdr->omp_len != length) || (pb > 0x1000) || (length == 0)) {
/* This is a bad ACL packet. Count a stat and free it */
STATS_INC(ble_ll_stats, bad_acl_hdr);
os_mbuf_free_chain(om);
continue;
}
/* Hand to connection state machine */
ble_ll_conn_tx_pkt_in(om, handle, length);
}
}
/*
* Check for full packet. If frame is not right, free the mbuf.
*/
static void
nmgr_uart_rx_pkt(struct nmgr_uart_state *nus, struct os_mbuf_pkthdr *rxm)
{
struct os_mbuf *m;
struct nmgr_ser_hdr *nsh;
uint16_t crc;
int rc;
m = OS_MBUF_PKTHDR_TO_MBUF(rxm);
if (rxm->omp_len <= sizeof(uint16_t) + sizeof(crc)) {
goto err;
}
nsh = (struct nmgr_ser_hdr *)m->om_data;
switch (nsh->nsh_seq) {
case htons(SHELL_NLIP_PKT):
if (nus->nus_rx_pkt) {
os_mbuf_free_chain(OS_MBUF_PKTHDR_TO_MBUF(nus->nus_rx_pkt));
nus->nus_rx_pkt = NULL;
}
break;
case htons(SHELL_NLIP_DATA):
if (!nus->nus_rx_pkt) {
goto err;
}
break;
default:
goto err;
}
if (os_mbuf_append(m, "\0", 1)) {
/*
* Null-terminate the line for base64_decode's sake.
*/
goto err;
}
m = os_mbuf_pullup(m, rxm->omp_len);
if (!m) {
/*
* Make data contiguous for base64_decode's sake.
*/
goto err;
}
rxm = OS_MBUF_PKTHDR(m);
rc = base64_decode((char *)m->om_data + 2, (char *)m->om_data + 2);
if (rc < 0) {
goto err;
}
rxm->omp_len = m->om_len = rc + 2;
if (nus->nus_rx_pkt) {
os_mbuf_adj(m, 2);
os_mbuf_concat(OS_MBUF_PKTHDR_TO_MBUF(nus->nus_rx_pkt), m);
} else {
nus->nus_rx_pkt = rxm;
}
m = OS_MBUF_PKTHDR_TO_MBUF(nus->nus_rx_pkt);
nsh = (struct nmgr_ser_hdr *)m->om_data;
if (nus->nus_rx_pkt->omp_len - sizeof(*nsh) == ntohs(nsh->nsh_len)) {
os_mbuf_adj(m, 4);
os_mbuf_adj(m, -2);
nmgr_rx_req(&nus->nus_transport, m);
nus->nus_rx_pkt = NULL;
}
return;
err:
os_mbuf_free_chain(m);
}
