2013-12-20 13:53:41

by Ravi kumar Veeramally

[permalink] [raw]
Subject: [PATCH] android/pan: Add pan sdp record for NAP role

---
android/pan.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 91 insertions(+)

diff --git a/android/pan.c b/android/pan.c
index 689c7ef..f322f20 100644
--- a/android/pan.c
+++ b/android/pan.c
@@ -44,9 +44,12 @@
#include "utils.h"
#include "bluetooth.h"

+#define SVC_HINT_CAPTURING 0x08
+
static bdaddr_t adapter_addr;
GSList *devices = NULL;
uint8_t local_role = HAL_PAN_ROLE_NONE;
+static uint32_t record_id = 0;

struct pan_device {
char iface[16];
@@ -335,20 +338,106 @@ static const struct ipc_handler cmd_handlers[] = {
{ bt_pan_disconnect, false, sizeof(struct hal_cmd_pan_disconnect) },
};

+static sdp_record_t *pan_record(void)
+{
+ sdp_list_t *svclass, *pfseq, *apseq, *root, *aproto;
+ uuid_t root_uuid, pan, l2cap, bnep;
+ sdp_profile_desc_t profile[1];
+ sdp_list_t *proto[2];
+ sdp_data_t *v, *p;
+ uint16_t psm = BNEP_PSM, version = 0x0100;
+ uint16_t security = 0x0001, type = 0xfffe;
+ uint32_t rate = 0;
+ const char *desc = "Network service", *name = "bnep";
+ sdp_record_t *record;
+ uint16_t ptype[] = { 0x0800, /* IPv4 */ 0x0806, /* ARP */ };
+ sdp_data_t *head, *pseq, *data;
+
+ record = sdp_record_alloc();
+ if (!record)
+ return NULL;
+
+ record->attrlist = NULL;
+ record->pattern = NULL;
+
+ sdp_uuid16_create(&pan, NAP_SVCLASS_ID);
+ svclass = sdp_list_append(NULL, &pan);
+ sdp_set_service_classes(record, svclass);
+ sdp_uuid16_create(&profile[0].uuid, NAP_PROFILE_ID);
+ profile[0].version = 0x0100;
+ pfseq = sdp_list_append(NULL, &profile[0]);
+ sdp_set_profile_descs(record, pfseq);
+ sdp_set_info_attr(record, name, NULL, desc);
+ sdp_attr_add_new(record, SDP_ATTR_NET_ACCESS_TYPE, SDP_UINT16, &type);
+ sdp_attr_add_new(record, SDP_ATTR_MAX_NET_ACCESSRATE,
+ SDP_UINT32, &rate);
+ sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
+ root = sdp_list_append(NULL, &root_uuid);
+ sdp_set_browse_groups(record, root);
+ sdp_uuid16_create(&l2cap, L2CAP_UUID);
+ proto[0] = sdp_list_append(NULL, &l2cap);
+ p = sdp_data_alloc(SDP_UINT16, &psm);
+ proto[0] = sdp_list_append(proto[0], p);
+ apseq = sdp_list_append(NULL, proto[0]);
+ sdp_uuid16_create(&bnep, BNEP_UUID);
+ proto[1] = sdp_list_append(NULL, &bnep);
+ v = sdp_data_alloc(SDP_UINT16, &version);
+ proto[1] = sdp_list_append(proto[1], v);
+
+ head = sdp_data_alloc(SDP_UINT16, &ptype[0]);
+ data = sdp_data_alloc(SDP_UINT16, &ptype[1]);
+ sdp_seq_append(head, data);
+
+ pseq = sdp_data_alloc(SDP_SEQ16, head);
+ proto[1] = sdp_list_append(proto[1], pseq);
+ apseq = sdp_list_append(apseq, proto[1]);
+ aproto = sdp_list_append(NULL, apseq);
+ sdp_set_access_protos(record, aproto);
+ sdp_add_lang_attr(record);
+ sdp_attr_add_new(record, SDP_ATTR_SECURITY_DESC, SDP_UINT16, &security);
+
+ sdp_data_free(p);
+ sdp_data_free(v);
+ sdp_list_free(apseq, NULL);
+ sdp_list_free(root, NULL);
+ sdp_list_free(aproto, NULL);
+ sdp_list_free(proto[0], NULL);
+ sdp_list_free(proto[1], NULL);
+ sdp_list_free(svclass, NULL);
+ sdp_list_free(pfseq, NULL);
+
+ return record;
+}
+
bool bt_pan_register(const bdaddr_t *addr)
{
+ sdp_record_t *rec;
int err;

DBG("");

bacpy(&adapter_addr, addr);

+ rec = pan_record();
+ if (!rec) {
+ error("Failed to allocate PAN record");
+ return false;
+ }
+
+ if (bt_adapter_add_record(rec, SVC_HINT_CAPTURING) < 0) {
+ error("Failed to register PAN record");
+ sdp_record_free(rec);
+ return false;
+ }
+
err = bnep_init();
if (err) {
error("bnep init failed");
+ sdp_record_free(rec);
return false;
}

+ record_id = rec->handle;
ipc_register(HAL_SERVICE_ID_PAN, cmd_handlers,
G_N_ELEMENTS(cmd_handlers));

@@ -362,4 +451,6 @@ void bt_pan_unregister(void)
bnep_cleanup();

ipc_unregister(HAL_SERVICE_ID_PAN);
+ bt_adapter_remove_record(record_id);
+ record_id = 0;
}
--
1.8.3.2



2013-12-21 13:38:20

by Szymon Janc

[permalink] [raw]
Subject: Re: [PATCH] android/pan: Add pan sdp record for NAP role

Hi Ravi,

On Friday 20 December 2013 15:53:41 Ravi kumar Veeramally wrote:
> ---
> android/pan.c | 91
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed,
> 91 insertions(+)
>
> diff --git a/android/pan.c b/android/pan.c
> index 689c7ef..f322f20 100644
> --- a/android/pan.c
> +++ b/android/pan.c
> @@ -44,9 +44,12 @@
> #include "utils.h"
> #include "bluetooth.h"
>
> +#define SVC_HINT_CAPTURING 0x08

Shouldn't this be SVC_HINT_NETWORKING 0x02 ?

> +
> static bdaddr_t adapter_addr;
> GSList *devices = NULL;
> uint8_t local_role = HAL_PAN_ROLE_NONE;
> +static uint32_t record_id = 0;
>
> struct pan_device {
> char iface[16];
> @@ -335,20 +338,106 @@ static const struct ipc_handler cmd_handlers[] = {
> { bt_pan_disconnect, false, sizeof(struct hal_cmd_pan_disconnect) },
> };
>
> +static sdp_record_t *pan_record(void)
> +{
> + sdp_list_t *svclass, *pfseq, *apseq, *root, *aproto;
> + uuid_t root_uuid, pan, l2cap, bnep;
> + sdp_profile_desc_t profile[1];
> + sdp_list_t *proto[2];
> + sdp_data_t *v, *p;
> + uint16_t psm = BNEP_PSM, version = 0x0100;
> + uint16_t security = 0x0001, type = 0xfffe;
> + uint32_t rate = 0;
> + const char *desc = "Network service", *name = "bnep";
> + sdp_record_t *record;
> + uint16_t ptype[] = { 0x0800, /* IPv4 */ 0x0806, /* ARP */ };
> + sdp_data_t *head, *pseq, *data;
> +
> + record = sdp_record_alloc();
> + if (!record)
> + return NULL;
> +
> + record->attrlist = NULL;
> + record->pattern = NULL;
> +
> + sdp_uuid16_create(&pan, NAP_SVCLASS_ID);
> + svclass = sdp_list_append(NULL, &pan);
> + sdp_set_service_classes(record, svclass);
> + sdp_uuid16_create(&profile[0].uuid, NAP_PROFILE_ID);
> + profile[0].version = 0x0100;
> + pfseq = sdp_list_append(NULL, &profile[0]);
> + sdp_set_profile_descs(record, pfseq);
> + sdp_set_info_attr(record, name, NULL, desc);
> + sdp_attr_add_new(record, SDP_ATTR_NET_ACCESS_TYPE, SDP_UINT16, &type);
> + sdp_attr_add_new(record, SDP_ATTR_MAX_NET_ACCESSRATE,
> + SDP_UINT32, &rate);
> + sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
> + root = sdp_list_append(NULL, &root_uuid);
> + sdp_set_browse_groups(record, root);
> + sdp_uuid16_create(&l2cap, L2CAP_UUID);
> + proto[0] = sdp_list_append(NULL, &l2cap);
> + p = sdp_data_alloc(SDP_UINT16, &psm);
> + proto[0] = sdp_list_append(proto[0], p);
> + apseq = sdp_list_append(NULL, proto[0]);
> + sdp_uuid16_create(&bnep, BNEP_UUID);
> + proto[1] = sdp_list_append(NULL, &bnep);
> + v = sdp_data_alloc(SDP_UINT16, &version);
> + proto[1] = sdp_list_append(proto[1], v);
> +
> + head = sdp_data_alloc(SDP_UINT16, &ptype[0]);
> + data = sdp_data_alloc(SDP_UINT16, &ptype[1]);
> + sdp_seq_append(head, data);
> +
> + pseq = sdp_data_alloc(SDP_SEQ16, head);
> + proto[1] = sdp_list_append(proto[1], pseq);
> + apseq = sdp_list_append(apseq, proto[1]);
> + aproto = sdp_list_append(NULL, apseq);
> + sdp_set_access_protos(record, aproto);
> + sdp_add_lang_attr(record);
> + sdp_attr_add_new(record, SDP_ATTR_SECURITY_DESC, SDP_UINT16, &security);
> +

I would group those calls in similar fashion we have in other service record
creating functions (browse group, svc, profile id, protocols etc... see
android/a2dp.c or android/socket.c).

> + sdp_data_free(p);
> + sdp_data_free(v);
> + sdp_list_free(apseq, NULL);
> + sdp_list_free(root, NULL);
> + sdp_list_free(aproto, NULL);
> + sdp_list_free(proto[0], NULL);
> + sdp_list_free(proto[1], NULL);
> + sdp_list_free(svclass, NULL);
> + sdp_list_free(pfseq, NULL);
> +
> + return record;
> +}
> +
> bool bt_pan_register(const bdaddr_t *addr)
> {
> + sdp_record_t *rec;
> int err;
>
> DBG("");
>
> bacpy(&adapter_addr, addr);
>
> + rec = pan_record();
> + if (!rec) {
> + error("Failed to allocate PAN record");
> + return false;
> + }
> +
> + if (bt_adapter_add_record(rec, SVC_HINT_CAPTURING) < 0) {
> + error("Failed to register PAN record");
> + sdp_record_free(rec);
> + return false;
> + }
> +
> err = bnep_init();
> if (err) {
> error("bnep init failed");
> + sdp_record_free(rec);
> return false;
> }
>
> + record_id = rec->handle;
> ipc_register(HAL_SERVICE_ID_PAN, cmd_handlers,
> G_N_ELEMENTS(cmd_handlers));
>
> @@ -362,4 +451,6 @@ void bt_pan_unregister(void)
> bnep_cleanup();
>
> ipc_unregister(HAL_SERVICE_ID_PAN);
> + bt_adapter_remove_record(record_id);
> + record_id = 0;
> }

--
BR
Szymon Janc
[email protected]