2019-07-10 23:08:49

by Gix, Brian

[permalink] [raw]
Subject: [PATCH BlueZ 2/8] mesh: Fix support for Provisioner Initiator

---
mesh/pb-adv.c | 54 ++++++++++++++++++++++++++++++++++++------------------
mesh/pb-adv.h | 3 ++-
2 files changed, 38 insertions(+), 19 deletions(-)

diff --git a/mesh/pb-adv.c b/mesh/pb-adv.c
index 8762afd7c..346293bd0 100644
--- a/mesh/pb-adv.c
+++ b/mesh/pb-adv.c
@@ -65,6 +65,8 @@ struct pb_adv_session {

static struct pb_adv_session *pb_session = NULL;

+static const uint8_t filter[1] = { MESH_AD_TYPE_PROVISION };
+
static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
uint16_t size)
{
@@ -77,7 +79,7 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
if (!size)
return;

- mesh_send_cancel(buf, 1);
+ mesh_send_cancel(filter, sizeof(filter));

l_put_be32(session->conn_id, buf + 1);
buf[1 + 4] = ++session->local_msg_num;
@@ -103,7 +105,7 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
l_debug("max_seg: %2.2x", max_seg);
l_debug("size: %2.2x, CRC: %2.2x", size, buf[9]);
/* print_packet("PB-TX", buf + 1, init_size + 9); */
- mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 50, buf, init_size + 10);
+ mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 200, buf, init_size + 10);

consumed = init_size;

@@ -120,7 +122,7 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,

/* print_packet("PB-TX", buf + 1, seg_size + 6); */

- mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 50,
+ mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 200,
buf, seg_size + 7);

consumed += seg_size;
@@ -130,7 +132,6 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
static void tx_timeout(struct l_timeout *timeout, void *user_data)
{
struct pb_adv_session *session = user_data;
- uint8_t cancel[] = { MESH_AD_TYPE_PROVISION };
mesh_prov_close_func_t cb;

if (!session || pb_session != session)
@@ -139,7 +140,7 @@ static void tx_timeout(struct l_timeout *timeout, void *user_data)
l_timeout_remove(session->tx_timeout);
session->tx_timeout = NULL;

- mesh_send_cancel(cancel, sizeof(cancel));
+ mesh_send_cancel(filter, sizeof(filter));

l_info("TX timeout");
cb = pb_session->close_cb;
@@ -162,17 +163,29 @@ static void pb_adv_tx(void *user_data, uint8_t *data, uint16_t len)
send_adv_segs(session, data, len);
}

+static void send_open_req(struct pb_adv_session *session)
+{
+ uint8_t open_req[23] = { MESH_AD_TYPE_PROVISION };
+
+ l_put_be32(session->conn_id, open_req + 1);
+ open_req[1 + 4] = 0;
+ open_req[1 + 4 + 1] = PB_ADV_OPEN_REQ;
+ memcpy(open_req + 7, session->uuid, 16);
+
+ mesh_send_cancel(filter, sizeof(filter));
+ mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 500, open_req,
+ sizeof(open_req));
+}
+
static void send_open_cfm(struct pb_adv_session *session)
{
uint8_t open_cfm[7] = { MESH_AD_TYPE_PROVISION };

l_put_be32(session->conn_id, open_cfm + 1);
open_cfm[1 + 4] = 0;
- open_cfm[1 + 4 + 1] = 0x07; /* OPEN_CFM */
-
- /* print_packet("PB-TX", open_cfm + 1, sizeof(open_cfm) - 1); */
+ open_cfm[1 + 4 + 1] = PB_ADV_OPEN_CFM; /* OPEN_CFM */

- mesh_send_cancel(open_cfm, 1);
+ mesh_send_cancel(filter, sizeof(filter));
mesh_send_pkt(5, 100, open_cfm, sizeof(open_cfm));
}

@@ -182,9 +195,8 @@ static void send_ack(struct pb_adv_session *session, uint8_t msg_num)

l_put_be32(session->conn_id, ack + 1);
ack[1 + 4] = msg_num;
- ack[1 + 4 + 1] = 0x01; /* ACK */
+ ack[1 + 4 + 1] = PB_ADV_ACK;

- /* print_packet("ADV-ACK", ack + 1, sizeof(ack) - 1); */
mesh_send_pkt(1, 100, ack, sizeof(ack));
}

@@ -192,16 +204,16 @@ static void send_close_ind(struct pb_adv_session *session, uint8_t reason)
{
uint8_t close_ind[8] = { MESH_AD_TYPE_PROVISION };

- if (!pb_session || pb_session->user_data != session)
+ if (!pb_session || pb_session != session)
return;

l_put_be32(session->conn_id, close_ind + 1);
close_ind[5] = 0;
- close_ind[6] = PB_ADV_CLOSE; /* CLOSE_IND */
+ close_ind[6] = PB_ADV_CLOSE;
close_ind[7] = reason;

- mesh_send_cancel(close_ind, 1);
- mesh_send_pkt(5, 100, close_ind, sizeof(close_ind));
+ mesh_send_cancel(filter, sizeof(filter));
+ mesh_send_pkt(10, 100, close_ind, sizeof(close_ind));
}

static void pb_adv_packet(void *user_data, const uint8_t *pkt, uint16_t len)
@@ -311,7 +323,7 @@ static void pb_adv_packet(void *user_data, const uint8_t *pkt, uint16_t len)
if (session->local_acked > msg_num)
return;

- l_debug("Got ACK %d", msg_num);
+ mesh_send_cancel(filter, sizeof(filter));
session->local_acked = msg_num;
session->ack_cb(session->user_data, msg_num);
break;
@@ -395,7 +407,8 @@ static void pb_adv_packet(void *user_data, const uint8_t *pkt, uint16_t len)
}
}

-bool pb_adv_reg(mesh_prov_open_func_t open_cb, mesh_prov_close_func_t close_cb,
+bool pb_adv_reg(bool initiator, mesh_prov_open_func_t open_cb,
+ mesh_prov_close_func_t close_cb,
mesh_prov_receive_func_t rx_cb, mesh_prov_ack_func_t ack_cb,
uint8_t uuid[16], void *user_data)
{
@@ -408,11 +421,16 @@ bool pb_adv_reg(mesh_prov_open_func_t open_cb, mesh_prov_close_func_t close_cb,
pb_session->rx_cb = rx_cb;
pb_session->ack_cb = ack_cb;
pb_session->user_data = user_data;
+ pb_session->initiator = initiator;
memcpy(pb_session->uuid, uuid, 16);

- /* TODO: register PB AD type and Start Beaconing ? */
mesh_reg_prov_rx(pb_adv_packet, pb_session);

+ if (initiator) {
+ l_getrandom(&pb_session->conn_id, sizeof(pb_session->conn_id));
+ send_open_req(pb_session);
+ }
+
return true;
}

diff --git a/mesh/pb-adv.h b/mesh/pb-adv.h
index a5870d5a2..80d53d234 100644
--- a/mesh/pb-adv.h
+++ b/mesh/pb-adv.h
@@ -17,7 +17,8 @@
*
*/

-bool pb_adv_reg(mesh_prov_open_func_t open_cb, mesh_prov_close_func_t close_cb,
+bool pb_adv_reg(bool initiator, mesh_prov_open_func_t open_cb,
+ mesh_prov_close_func_t close_cb,
mesh_prov_receive_func_t rx_cb, mesh_prov_ack_func_t ack_cb,
uint8_t uuid[16], void *user_data);
void pb_adv_unreg(void *user_data);
--
2.14.5


2019-07-11 07:11:37

by Michał Lowas-Rzechonek

[permalink] [raw]
Subject: Re: [PATCH BlueZ 2/8] mesh: Fix support for Provisioner Initiator

Hi Brian,

On 07/10, Brian Gix wrote:
> ---
> mesh/pb-adv.c | 54 ++++++++++++++++++++++++++++++++++++------------------
> mesh/pb-adv.h | 3 ++-
> 2 files changed, 38 insertions(+), 19 deletions(-)
>
> diff --git a/mesh/pb-adv.c b/mesh/pb-adv.c
> index 8762afd7c..346293bd0 100644
> --- a/mesh/pb-adv.c
> +++ b/mesh/pb-adv.c
> @@ -65,6 +65,8 @@ struct pb_adv_session {
>
> static struct pb_adv_session *pb_session = NULL;
>
> +static const uint8_t filter[1] = { MESH_AD_TYPE_PROVISION };
> +
> static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
> uint16_t size)
> {
> @@ -77,7 +79,7 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
> if (!size)
> return;
>
> - mesh_send_cancel(buf, 1);
> + mesh_send_cancel(filter, sizeof(filter));
>
> l_put_be32(session->conn_id, buf + 1);
> buf[1 + 4] = ++session->local_msg_num;
> @@ -103,7 +105,7 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
> l_debug("max_seg: %2.2x", max_seg);
> l_debug("size: %2.2x, CRC: %2.2x", size, buf[9]);
> /* print_packet("PB-TX", buf + 1, init_size + 9); */
> - mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 50, buf, init_size + 10);
> + mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 200, buf, init_size + 10);
>
> consumed = init_size;
>
> @@ -120,7 +122,7 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
>
> /* print_packet("PB-TX", buf + 1, seg_size + 6); */
>
> - mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 50,
> + mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 200,
> buf, seg_size + 7);
>
> consumed += seg_size;
> @@ -130,7 +132,6 @@ static void send_adv_segs(struct pb_adv_session *session, const uint8_t *data,
> static void tx_timeout(struct l_timeout *timeout, void *user_data)
> {
> struct pb_adv_session *session = user_data;
> - uint8_t cancel[] = { MESH_AD_TYPE_PROVISION };
> mesh_prov_close_func_t cb;
>
> if (!session || pb_session != session)
> @@ -139,7 +140,7 @@ static void tx_timeout(struct l_timeout *timeout, void *user_data)
> l_timeout_remove(session->tx_timeout);
> session->tx_timeout = NULL;
>
> - mesh_send_cancel(cancel, sizeof(cancel));
> + mesh_send_cancel(filter, sizeof(filter));
>
> l_info("TX timeout");
> cb = pb_session->close_cb;
> @@ -162,17 +163,29 @@ static void pb_adv_tx(void *user_data, uint8_t *data, uint16_t len)
> send_adv_segs(session, data, len);
> }
>
> +static void send_open_req(struct pb_adv_session *session)
> +{
> + uint8_t open_req[23] = { MESH_AD_TYPE_PROVISION };
> +
> + l_put_be32(session->conn_id, open_req + 1);
> + open_req[1 + 4] = 0;
> + open_req[1 + 4 + 1] = PB_ADV_OPEN_REQ;
> + memcpy(open_req + 7, session->uuid, 16);
> +
> + mesh_send_cancel(filter, sizeof(filter));
> + mesh_send_pkt(MESH_IO_TX_COUNT_UNLIMITED, 500, open_req,
> + sizeof(open_req));
> +}
> +
> static void send_open_cfm(struct pb_adv_session *session)
> {
> uint8_t open_cfm[7] = { MESH_AD_TYPE_PROVISION };
>
> l_put_be32(session->conn_id, open_cfm + 1);
> open_cfm[1 + 4] = 0;
> - open_cfm[1 + 4 + 1] = 0x07; /* OPEN_CFM */
> -
> - /* print_packet("PB-TX", open_cfm + 1, sizeof(open_cfm) - 1); */
> + open_cfm[1 + 4 + 1] = PB_ADV_OPEN_CFM; /* OPEN_CFM */
>
> - mesh_send_cancel(open_cfm, 1);
> + mesh_send_cancel(filter, sizeof(filter));
> mesh_send_pkt(5, 100, open_cfm, sizeof(open_cfm));
> }
>
> @@ -182,9 +195,8 @@ static void send_ack(struct pb_adv_session *session, uint8_t msg_num)
>
> l_put_be32(session->conn_id, ack + 1);
> ack[1 + 4] = msg_num;
> - ack[1 + 4 + 1] = 0x01; /* ACK */
> + ack[1 + 4 + 1] = PB_ADV_ACK;
>
> - /* print_packet("ADV-ACK", ack + 1, sizeof(ack) - 1); */
> mesh_send_pkt(1, 100, ack, sizeof(ack));
> }
>
> @@ -192,16 +204,16 @@ static void send_close_ind(struct pb_adv_session *session, uint8_t reason)
> {
> uint8_t close_ind[8] = { MESH_AD_TYPE_PROVISION };
>
> - if (!pb_session || pb_session->user_data != session)
> + if (!pb_session || pb_session != session)
> return;
>
> l_put_be32(session->conn_id, close_ind + 1);
> close_ind[5] = 0;
> - close_ind[6] = PB_ADV_CLOSE; /* CLOSE_IND */
> + close_ind[6] = PB_ADV_CLOSE;
> close_ind[7] = reason;
>
> - mesh_send_cancel(close_ind, 1);
> - mesh_send_pkt(5, 100, close_ind, sizeof(close_ind));
> + mesh_send_cancel(filter, sizeof(filter));
> + mesh_send_pkt(10, 100, close_ind, sizeof(close_ind));
> }
>
> static void pb_adv_packet(void *user_data, const uint8_t *pkt, uint16_t len)
> @@ -311,7 +323,7 @@ static void pb_adv_packet(void *user_data, const uint8_t *pkt, uint16_t len)
> if (session->local_acked > msg_num)
> return;
>
> - l_debug("Got ACK %d", msg_num);
> + mesh_send_cancel(filter, sizeof(filter));
> session->local_acked = msg_num;
> session->ack_cb(session->user_data, msg_num);
> break;
> @@ -395,7 +407,8 @@ static void pb_adv_packet(void *user_data, const uint8_t *pkt, uint16_t len)
> }
> }
>
> -bool pb_adv_reg(mesh_prov_open_func_t open_cb, mesh_prov_close_func_t close_cb,
> +bool pb_adv_reg(bool initiator, mesh_prov_open_func_t open_cb,
> + mesh_prov_close_func_t close_cb,
> mesh_prov_receive_func_t rx_cb, mesh_prov_ack_func_t ack_cb,
> uint8_t uuid[16], void *user_data)
> {
> @@ -408,11 +421,16 @@ bool pb_adv_reg(mesh_prov_open_func_t open_cb, mesh_prov_close_func_t close_cb,
> pb_session->rx_cb = rx_cb;
> pb_session->ack_cb = ack_cb;
> pb_session->user_data = user_data;
> + pb_session->initiator = initiator;
> memcpy(pb_session->uuid, uuid, 16);
>
> - /* TODO: register PB AD type and Start Beaconing ? */
> mesh_reg_prov_rx(pb_adv_packet, pb_session);
>
> + if (initiator) {
> + l_getrandom(&pb_session->conn_id, sizeof(pb_session->conn_id));
> + send_open_req(pb_session);
> + }

I would suggest renaming 'conn_id' to 'link_id' to be more aligned with the
spec. The same remark applies to 'msg_num' - it's called 'transaction
number' in the standard.

> +
> return true;
> }
>
> diff --git a/mesh/pb-adv.h b/mesh/pb-adv.h
> index a5870d5a2..80d53d234 100644
> --- a/mesh/pb-adv.h
> +++ b/mesh/pb-adv.h
> @@ -17,7 +17,8 @@
> *
> */
>
> -bool pb_adv_reg(mesh_prov_open_func_t open_cb, mesh_prov_close_func_t close_cb,
> +bool pb_adv_reg(bool initiator, mesh_prov_open_func_t open_cb,
> + mesh_prov_close_func_t close_cb,
> mesh_prov_receive_func_t rx_cb, mesh_prov_ack_func_t ack_cb,
> uint8_t uuid[16], void *user_data);
> void pb_adv_unreg(void *user_data);

This change requires updating the callers to add the 'initiator'
argument. I think this should be:

prov-initiator.c, initiator_start():

/* Always register for PB-ADV */
result = pb_adv_reg(true, int_prov_open, int_prov_close, int_prov_rx,
int_prov_ack, uuid, prov);

prov-acceptor.c, acceptor_start():

/* Always register for PB-ADV */
result = pb_adv_reg(false, acp_prov_open, acp_prov_close, acp_prov_rx,
acp_prov_ack, uuid, prov);


--
Michał Lowas-Rzechonek <[email protected]>
Silvair http://silvair.com
Jasnogórska 44, 31-358 Krakow, POLAND