From: Andrei Emeltchenko <[email protected]>
This is initial code implementing socket HAL. OPP currently works with send/receive files. Probaly
other profiles works as well, not tested yet.
Changes:
* v4: Changed name rfslot -> rfsock following Johan's comment and other cosmetic changes, fixed one bug in SDP
record, use NULL instead of 0 for sdp functions.
* v3: Fixed coding style with write/send between file descriptors.
* v2: Following Marcel comments changed way copying between file descriptors works, added SDP record
for OPP and now it is possible to send files through GUI. Merged one patch with structures with actual user.
* v1: Rebased and use static src address, hal_fd removed from structure and closed after sent to framework,
added connect calls and SDP parsing, added cleanup_rfcomm function, minor fixes.
* RFC Initial
TODO:
* Add SDP record for PBAP and other profiles
* Use splice() (requires bionic change first)
For tracking rfcomm sockets I use structure rfslot which has following
fields:
- real_sock - real RFCOMM socket
- fd - fd to communicate with Android framework
create_rfslot sets hal_fd which is fd passed to Android framework with CMSG
Andrei Emeltchenko (17):
android/socket: Add connect signal to socket
android: trivial: Add comment making code consistent
android/socket: Add get RFCOMM default channel
android/socket: Define structs and implement listen
android/socket: Implement socket accepted event
android/socket: Implement Android RFCOMM stack events
android/socket: Implement RFCOMM events
android/socket: Implement accept signal over Android fd
android/socket: Write channel to Android fd
android/socket: Implement socket connect HAL method
android/socket: Parse SDP response and connect
android/socket: Implement HAL connect call
android/socket: Send RFCOMM channel to framework
android/socket: Send connect signal on connect
android/socket: Close file descriptor after sending
android/socket: Add SDP record for OPP profile
android/socket: Add MAS uuid to channel mapping
android/hal-msg.h | 2 +
android/socket.c | 612 ++++++++++++++++++++++++++++++++++++++++++++++++++++-
android/socket.h | 7 +
3 files changed, 617 insertions(+), 4 deletions(-)
--
1.7.10.4
Hi Andrei,
On Mon, Nov 18, 2013, Andrei Emeltchenko wrote:
> From: Andrei Emeltchenko <[email protected]>
>
> ---
> android/hal-msg.h | 2 ++
> 1 file changed, 2 insertions(+)
The first two patches have been applied. Thanks.
Johan
From: Andrei Emeltchenko <[email protected]>
When we get accepted event we create rfcomm slot and start listening
for events from Android framework and from RFCOMM real socket.
---
android/socket.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 0731bd9..12c3687 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -119,8 +119,59 @@ static int get_rfcomm_default_chan(const uint8_t *uuid)
return -ENOENT;
}
+static gboolean sock_stack_event_cb(GIOChannel *io, GIOCondition cond,
+ gpointer data)
+{
+ return TRUE;
+}
+
+static gboolean sock_rfcomm_event_cb(GIOChannel *io, GIOCondition cond,
+ gpointer data)
+{
+ return TRUE;
+}
+
static void accept_cb(GIOChannel *io, GError *err, gpointer user_data)
{
+ struct rfcomm_sock *rfsock = user_data;
+ struct rfcomm_sock *rfsock_acc;
+ GIOChannel *io_stack;
+ bdaddr_t dst;
+ char address[18];
+ int sock_acc;
+ int hal_fd = -1;
+
+ bt_io_get(io, &err,
+ BT_IO_OPT_DEST_BDADDR, &dst,
+ BT_IO_OPT_INVALID);
+ if (err) {
+ error("%s", err->message);
+ g_io_channel_shutdown(io, TRUE, NULL);
+ return;
+ }
+
+ ba2str(&dst, address);
+ DBG("Incoming connection from %s rfsock %p", address, rfsock);
+
+ DBG("rfsock: fd %d real_sock %d chan %u sock %d",
+ rfsock->fd, rfsock->real_sock, rfsock->channel,
+ g_io_channel_unix_get_fd(io));
+
+ sock_acc = g_io_channel_unix_get_fd(io);
+ rfsock_acc = create_rfsock(sock_acc, &hal_fd);
+ connections = g_list_append(connections, rfsock_acc);
+
+ /* Handle events from Android */
+ io_stack = g_io_channel_unix_new(rfsock_acc->fd);
+ g_io_add_watch(io_stack, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ sock_stack_event_cb, rfsock_acc);
+ g_io_channel_unref(io_stack);
+
+ /* Handle rfcomm events */
+ g_io_add_watch(io, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ sock_rfcomm_event_cb, rfsock_acc);
+
+ DBG("rfsock %p rfsock_acc %p", rfsock, rfsock_acc);
}
static int handle_listen(void *buf)
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Parse SDP response, find RFCOMM channel and connect.
---
android/socket.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 63 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 7939eee..63c553a 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -380,9 +380,72 @@ static int handle_listen(void *buf)
return hal_fd;
}
+static void connect_cb(GIOChannel *io, GError *err, gpointer user_data)
+{
+}
+
static void sdp_search_cb(sdp_list_t *recs, int err, gpointer data)
{
+ struct rfcomm_sock *rfsock = data;
+ GError *gerr = NULL;
+ sdp_list_t *list;
+ GIOChannel *io;
+ int chan;
+
DBG("");
+
+ if (err < 0) {
+ error("Unable to get SDP record: %s", strerror(-err));
+ goto fail;
+ }
+
+ if (!recs || !recs->data) {
+ error("No SDP records found");
+ goto fail;
+ }
+
+ for (list = recs; list != NULL; list = list->next) {
+ sdp_record_t *rec = list->data;
+ sdp_list_t *protos;
+
+ if (sdp_get_access_protos(rec, &protos) < 0) {
+ error("Unable to get proto list");
+ goto fail;
+ }
+
+ chan = sdp_get_proto_port(protos, RFCOMM_UUID);
+
+ sdp_list_foreach(protos, (sdp_list_func_t) sdp_list_free,
+ NULL);
+ sdp_list_free(protos, NULL);
+ }
+
+ if (chan <= 0) {
+ error("Could not get RFCOMM channel %d", chan);
+ goto fail;
+ }
+
+ DBG("Got RFCOMM channel %d", chan);
+
+ io = bt_io_connect(connect_cb, rfsock, NULL, &gerr,
+ BT_IO_OPT_SOURCE_BDADDR, &adapter_addr,
+ BT_IO_OPT_DEST_BDADDR, &rfsock->dst,
+ BT_IO_OPT_CHANNEL, chan,
+ BT_IO_OPT_SEC_LEVEL, BT_IO_SEC_LOW,
+ BT_IO_OPT_INVALID);
+ if (!io) {
+ error("Failed connect: %s", gerr->message);
+ g_error_free(gerr);
+ goto fail;
+ }
+
+ rfsock->real_sock = g_io_channel_unix_get_fd(io);
+ rfsock->channel = chan;
+ connections = g_list_append(connections, rfsock);
+ return;
+
+fail:
+ cleanup_rfsock(rfsock);
}
static int handle_connect(void *buf)
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Android framework expects connect signal to be sent when
remote device is connected.
---
android/socket.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index bd8b9a2..03276a8 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -380,6 +380,33 @@ static int handle_listen(void *buf)
return hal_fd;
}
+static ssize_t sock_send_connect(struct rfcomm_sock *rfsock, bdaddr_t *bdaddr)
+{
+ struct hal_sock_connect_signal cmd;
+ ssize_t len;
+
+ DBG("");
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.size = sizeof(cmd);
+ bdaddr2android(bdaddr, cmd.bdaddr);
+ cmd.channel = rfsock->channel;
+ cmd.status = 0;
+
+ len = write(rfsock->fd, &cmd, sizeof(cmd));
+ if (len < 0) {
+ error("%s", strerror(errno));
+ return len;
+ }
+
+ if (len != (ssize_t) sizeof(cmd)) {
+ error("Error sending connect signal");
+ return -1;
+ }
+
+ return len;
+}
+
static void connect_cb(GIOChannel *io, GError *conn_err, gpointer user_data)
{
struct rfcomm_sock *rfsock = user_data;
@@ -410,6 +437,9 @@ static void connect_cb(GIOChannel *io, GError *conn_err, gpointer user_data)
rfsock->fd, rfsock->real_sock, rfsock->channel,
g_io_channel_unix_get_fd(io));
+ if (sock_send_connect(rfsock, &dst) < 0)
+ goto fail;
+
/* Handle events from Android */
io_stack = g_io_channel_unix_new(rfsock->fd);
g_io_add_watch(io_stack, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Handle events from Android framework. Write everything to real RFCOMM
socket. Consider splice() in the future.
---
android/socket.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 60 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 12c3687..3be8ff6 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -119,9 +119,69 @@ static int get_rfcomm_default_chan(const uint8_t *uuid)
return -ENOENT;
}
+static int try_write_all(int fd, unsigned char *buf, int len)
+{
+ int sent = 0;
+
+ while (len > 0) {
+ int written;
+
+ written = write(fd, buf, len);
+ if (written < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ return -1;
+ }
+
+ if (!written)
+ return 0;
+
+ len -= written; buf += written; sent += written;
+ }
+
+ return sent;
+}
+
static gboolean sock_stack_event_cb(GIOChannel *io, GIOCondition cond,
gpointer data)
{
+ struct rfcomm_sock *rfsock = data;
+ unsigned char buf[1024];
+ int len, sent;
+
+ DBG("rfsock: fd %d real_sock %d chan %u sock %d",
+ rfsock->fd, rfsock->real_sock, rfsock->channel,
+ g_io_channel_unix_get_fd(io));
+
+ if (!g_list_find(connections, rfsock)) {
+ error("rfsock %p not found in the list", rfsock);
+ return FALSE;
+ }
+
+ if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) {
+ error("Socket error: sock %d cond %d",
+ g_io_channel_unix_get_fd(io), cond);
+ connections = g_list_remove(connections, rfsock);
+ cleanup_rfsock(rfsock);
+ return FALSE;
+ }
+
+ len = read(rfsock->fd, buf, sizeof(buf));
+ if (len <= 0) {
+ error("read(): %s", strerror(errno));
+ return FALSE;
+ }
+
+ DBG("read %d bytes write to %d", len, rfsock->real_sock);
+
+ sent = try_write_all(rfsock->real_sock, buf, len);
+ if (sent < 0) {
+ error("write(): %s", strerror(errno));
+ return FALSE;
+ }
+
+ DBG("Written %d bytes", sent);
+
return TRUE;
}
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Android expects to get accept signal over file descriptor which was
set during listen HAL call.
---
android/socket.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 154c330..a02bb1e 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -37,6 +37,7 @@
#include "hal-msg.h"
#include "hal-ipc.h"
#include "ipc.h"
+#include "utils.h"
#include "socket.h"
#define OPP_DEFAULT_CHANNEL 9
@@ -107,6 +108,45 @@ static struct {
}
};
+static int bt_sock_send_fd(int sock_fd, const void *buf, int len, int send_fd)
+{
+ ssize_t ret;
+ struct msghdr msg;
+ struct cmsghdr *cmsg;
+ struct iovec iv;
+ char msgbuf[CMSG_SPACE(1)];
+
+ DBG("len %d sock_fd %d send_fd %d", len, sock_fd, send_fd);
+
+ if (sock_fd == -1 || send_fd == -1)
+ return -1;
+
+ memset(&msg, 0, sizeof(msg));
+
+ msg.msg_control = msgbuf;
+ msg.msg_controllen = sizeof(msgbuf);
+ cmsg = CMSG_FIRSTHDR(&msg);
+ cmsg->cmsg_level = SOL_SOCKET;
+ cmsg->cmsg_type = SCM_RIGHTS;
+ cmsg->cmsg_len = CMSG_LEN(sizeof(send_fd));
+ memcpy(CMSG_DATA(cmsg), &send_fd, sizeof(send_fd));
+
+ iv.iov_base = (unsigned char *) buf;
+ iv.iov_len = len;
+
+ msg.msg_iov = &iv;
+ msg.msg_iovlen = 1;
+
+ ret = sendmsg(sock_fd, &msg, MSG_NOSIGNAL);
+ if (ret < 0) {
+ error("sendmsg(): sock_fd %d send_fd %d: %s",
+ sock_fd, send_fd, strerror(errno));
+ return ret;
+ }
+
+ return ret;
+}
+
static int get_rfcomm_default_chan(const uint8_t *uuid)
{
unsigned int i;
@@ -228,6 +268,21 @@ static gboolean sock_rfcomm_event_cb(GIOChannel *io, GIOCondition cond,
return TRUE;
}
+static void sock_send_accept(struct rfcomm_sock *rfsock, bdaddr_t *bdaddr,
+ int fd_accepted)
+{
+ struct hal_sock_connect_signal cmd;
+
+ DBG("");
+
+ cmd.size = sizeof(cmd);
+ bdaddr2android(bdaddr, cmd.bdaddr);
+ cmd.channel = rfsock->channel;
+ cmd.status = 0;
+
+ bt_sock_send_fd(rfsock->fd, &cmd, sizeof(cmd), fd_accepted);
+}
+
static void accept_cb(GIOChannel *io, GError *err, gpointer user_data)
{
struct rfcomm_sock *rfsock = user_data;
@@ -258,6 +313,8 @@ static void accept_cb(GIOChannel *io, GError *err, gpointer user_data)
rfsock_acc = create_rfsock(sock_acc, &hal_fd);
connections = g_list_append(connections, rfsock_acc);
+ sock_send_accept(rfsock, &dst, hal_fd);
+
/* Handle events from Android */
io_stack = g_io_channel_unix_new(rfsock_acc->fd);
g_io_add_watch(io_stack, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Copy data from RFCOMM socket to Android framework. Consider splice
in the future.
---
android/socket.c | 37 +++++++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 3be8ff6..154c330 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -188,6 +188,43 @@ static gboolean sock_stack_event_cb(GIOChannel *io, GIOCondition cond,
static gboolean sock_rfcomm_event_cb(GIOChannel *io, GIOCondition cond,
gpointer data)
{
+ struct rfcomm_sock *rfsock = data;
+ unsigned char buf[1024];
+ int len, sent;
+
+ DBG("rfsock: fd %d real_sock %d chan %u sock %d",
+ rfsock->fd, rfsock->real_sock, rfsock->channel,
+ g_io_channel_unix_get_fd(io));
+
+ if (!g_list_find(connections, rfsock)) {
+ error("rfsock %p not found in the list", rfsock);
+ return FALSE;
+ }
+
+ if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL)) {
+ error("Socket error: sock %d cond %d",
+ g_io_channel_unix_get_fd(io), cond);
+ connections = g_list_remove(connections, rfsock);
+ cleanup_rfsock(rfsock);
+ return FALSE;
+ }
+
+ len = read(rfsock->real_sock, buf, sizeof(buf));
+ if (len <= 0) {
+ error("read(): %s", strerror(errno));
+ return FALSE;
+ }
+
+ DBG("read %d bytes, write to fd %d", len, rfsock->fd);
+
+ sent = try_write_all(rfsock->fd, buf, len);
+ if (sent < 0) {
+ error("write(): %s", strerror(errno));
+ return FALSE;
+ }
+
+ DBG("Written %d bytes", sent);
+
return TRUE;
}
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
This adds SDP record for OPP shown below:
Service Name: OBEX Object Push
Service RecHandle: 0x10002
Service Class ID List:
"OBEX Object Push" (0x1105)
Protocol Descriptor List:
"RFCOMM" (0x0003)
Channel: 9
"OBEX" (0x0008)
Profile Descriptor List:
"OBEX Object Push" (0x1105)
Version: 0x0100
---
android/socket.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 94 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 3c4c238..5e25b14 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -36,6 +36,7 @@
#include "lib/sdp_lib.h"
#include "src/sdp-client.h"
+#include "bluetooth.h"
#include "log.h"
#include "hal-msg.h"
#include "hal-ipc.h"
@@ -46,6 +47,9 @@
#define OPP_DEFAULT_CHANNEL 9
#define PBAP_DEFAULT_CHANNEL 15
+/* Use Object Transfer for all services */
+#define SVC_HINT_OBEX 0x10
+
static bdaddr_t adapter_addr;
/* Simple list of RFCOMM server sockets */
@@ -59,6 +63,7 @@ struct rfcomm_sock {
int real_sock; /* real RFCOMM socket */
int channel; /* RFCOMM channel */
bdaddr_t dst;
+ uint32_t service_handle;
};
static struct rfcomm_sock *create_rfsock(int sock, int *hal_fd)
@@ -90,6 +95,9 @@ static void cleanup_rfsock(struct rfcomm_sock *rfsock)
if (rfsock->real_sock > 0)
close(rfsock->real_sock);
+ if (rfsock->service_handle)
+ bt_adapter_remove_record(rfsock->service_handle);
+
g_free(rfsock);
}
@@ -112,6 +120,90 @@ static struct {
}
};
+static sdp_record_t *create_opp_record(uint8_t chan)
+{
+ sdp_list_t *svclass_id, *pfseq, *apseq, *root;
+ uuid_t root_uuid, opush_uuid, rfcomm_uuid, obex_uuid;
+ sdp_profile_desc_t profile[1];
+ sdp_list_t *aproto, *proto[2];
+ uint8_t formats[] = { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0xff };
+ void *dtds[sizeof(formats)], *values[sizeof(formats)];
+ unsigned int i;
+ uint8_t dtd = SDP_UINT8;
+ sdp_data_t *sflist;
+ sdp_data_t *channel;
+ sdp_record_t *record;
+
+ record = sdp_record_alloc();
+ if (!record)
+ return NULL;
+
+ sdp_uuid16_create(&root_uuid, PUBLIC_BROWSE_GROUP);
+ root = sdp_list_append(NULL, &root_uuid);
+ sdp_set_browse_groups(record, root);
+
+ sdp_uuid16_create(&opush_uuid, OBEX_OBJPUSH_SVCLASS_ID);
+ svclass_id = sdp_list_append(NULL, &opush_uuid);
+ sdp_set_service_classes(record, svclass_id);
+
+ sdp_uuid16_create(&profile[0].uuid, OBEX_OBJPUSH_PROFILE_ID);
+ profile[0].version = 0x0100;
+ pfseq = sdp_list_append(NULL, profile);
+ sdp_set_profile_descs(record, pfseq);
+
+ sdp_uuid16_create(&rfcomm_uuid, RFCOMM_UUID);
+ proto[0] = sdp_list_append(NULL, &rfcomm_uuid);
+ channel = sdp_data_alloc(SDP_UINT8, &chan);
+ proto[0] = sdp_list_append(proto[0], channel);
+ apseq = sdp_list_append(NULL, proto[0]);
+
+ sdp_uuid16_create(&obex_uuid, OBEX_UUID);
+ proto[1] = sdp_list_append(NULL, &obex_uuid);
+ apseq = sdp_list_append(apseq, proto[1]);
+
+ aproto = sdp_list_append(NULL, apseq);
+ sdp_set_access_protos(record, aproto);
+
+ for (i = 0; i < sizeof(formats); i++) {
+ dtds[i] = &dtd;
+ values[i] = &formats[i];
+ }
+ sflist = sdp_seq_alloc(dtds, values, sizeof(formats));
+ sdp_attr_add(record, SDP_ATTR_SUPPORTED_FORMATS_LIST, sflist);
+
+ sdp_set_info_attr(record, "OBEX Object Push", 0, 0);
+
+ sdp_data_free(channel);
+ sdp_list_free(proto[0], NULL);
+ sdp_list_free(proto[1], NULL);
+ sdp_list_free(apseq, NULL);
+ sdp_list_free(aproto, NULL);
+
+ return record;
+}
+
+static uint32_t sdp_service_register(uint8_t chan)
+{
+ sdp_record_t *record;
+
+ switch (chan) {
+ case OPP_DEFAULT_CHANNEL:
+ record = create_opp_record(chan);
+ break;
+ default:
+ DBG("Not implemented");
+ return 0;
+ }
+
+ if (bt_adapter_add_record(record, SVC_HINT_OBEX) < 0) {
+ error("Failed to register on SDP record");
+ sdp_record_free(record);
+ return 0;
+ }
+
+ return record->handle;
+}
+
static int bt_sock_send_fd(int sock_fd, const void *buf, int len, int send_fd)
{
ssize_t ret;
@@ -374,6 +466,8 @@ static int handle_listen(void *buf)
return -1;
}
+ rfsock->service_handle = sdp_service_register(chan);
+
DBG("real_sock %d fd %d hal_fd %d",
rfsock->real_sock, rfsock->fd, hal_fd);
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
---
android/socket.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 03276a8..3c4c238 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -563,6 +563,7 @@ void bt_sock_handle_cmd(int sk, uint8_t opcode, void *buf, uint16_t len)
break;
ipc_send(sk, HAL_SERVICE_ID_SOCK, opcode, 0, NULL, fd);
+ close(fd);
return;
case HAL_OP_SOCK_CONNECT:
fd = handle_connect(buf);
@@ -570,6 +571,7 @@ void bt_sock_handle_cmd(int sk, uint8_t opcode, void *buf, uint16_t len)
break;
ipc_send(sk, HAL_SERVICE_ID_SOCK, opcode, 0, NULL, fd);
+ close(fd);
return;
default:
DBG("Unhandled command, opcode 0x%x", opcode);
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
HAL connect uses similar event handlers like listen call.
---
android/socket.c | 43 ++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 42 insertions(+), 1 deletion(-)
diff --git a/android/socket.c b/android/socket.c
index 63c553a..5bedb60 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -380,8 +380,49 @@ static int handle_listen(void *buf)
return hal_fd;
}
-static void connect_cb(GIOChannel *io, GError *err, gpointer user_data)
+static void connect_cb(GIOChannel *io, GError *conn_err, gpointer user_data)
{
+ struct rfcomm_sock *rfsock = user_data;
+ GIOChannel *io_stack;
+ GError *io_err = NULL;
+ bdaddr_t dst;
+ char address[18];
+ int chan = -1;
+
+ bt_io_get(io, &io_err,
+ BT_IO_OPT_DEST_BDADDR, &dst,
+ BT_IO_OPT_INVALID);
+ if (io_err) {
+ error("%s", io_err->message);
+ g_error_free(io_err);
+ goto fail;
+ }
+
+ if (conn_err) {
+ error("%s", conn_err->message);
+ goto fail;
+ }
+
+ ba2str(&dst, address);
+ DBG("Connected to %s rfsock %p chan %d", address, rfsock, chan);
+
+ DBG("rfsock: fd %d real_sock %d chan %u sock %d",
+ rfsock->fd, rfsock->real_sock, rfsock->channel,
+ g_io_channel_unix_get_fd(io));
+
+ /* Handle events from Android */
+ io_stack = g_io_channel_unix_new(rfsock->fd);
+ g_io_add_watch(io_stack, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
+ sock_stack_event_cb, rfsock);
+ g_io_channel_unref(io_stack);
+
+ /* Handle rfcomm events */
+ g_io_add_watch(io, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ sock_rfcomm_event_cb, rfsock);
+
+ return;
+fail:
+ cleanup_rfsock(rfsock);
}
static void sdp_search_cb(sdp_list_t *recs, int err, gpointer data)
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
---
android/socket.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 5e25b14..3e67a53 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -46,6 +46,7 @@
#define OPP_DEFAULT_CHANNEL 9
#define PBAP_DEFAULT_CHANNEL 15
+#define MAS_DEFAULT_CHANNEL 16
/* Use Object Transfer for all services */
#define SVC_HINT_OBEX 0x10
@@ -117,6 +118,12 @@ static struct {
0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB
},
.channel = OPP_DEFAULT_CHANNEL
+ }, {
+ .uuid = {
+ 0x00, 0x00, 0x11, 0x32, 0x00, 0x00, 0x10, 0x00,
+ 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB
+ },
+ .channel = MAS_DEFAULT_CHANNEL
}
};
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Android framework expects to receive channel number as int.
---
android/socket.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index a02bb1e..bfe7ca6 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -363,6 +363,13 @@ static int handle_listen(void *buf)
rfsock->real_sock = g_io_channel_unix_get_fd(io);
servers = g_list_append(servers, rfsock);
+ /* TODO: Check this */
+ if (write(rfsock->fd, &chan, sizeof(chan)) != sizeof(chan)) {
+ error("Error sending RFCOMM channel");
+ cleanup_rfsock(rfsock);
+ return -1;
+ }
+
DBG("real_sock %d fd %d hal_fd %d",
rfsock->real_sock, rfsock->fd, hal_fd);
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
First step is to query remote device for RFCOMM channel.
---
android/socket.c | 34 ++++++++++++++++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/android/socket.c b/android/socket.c
index bfe7ca6..7939eee 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -33,6 +33,9 @@
#include "lib/bluetooth.h"
#include "btio/btio.h"
#include "lib/sdp.h"
+#include "lib/sdp_lib.h"
+#include "src/sdp-client.h"
+
#include "log.h"
#include "hal-msg.h"
#include "hal-ipc.h"
@@ -55,6 +58,7 @@ struct rfcomm_sock {
int fd; /* descriptor for communication with Java framework */
int real_sock; /* real RFCOMM socket */
int channel; /* RFCOMM channel */
+ bdaddr_t dst;
};
static struct rfcomm_sock *create_rfsock(int sock, int *hal_fd)
@@ -376,11 +380,37 @@ static int handle_listen(void *buf)
return hal_fd;
}
+static void sdp_search_cb(sdp_list_t *recs, int err, gpointer data)
+{
+ DBG("");
+}
+
static int handle_connect(void *buf)
{
- DBG("Not implemented");
+ struct hal_cmd_sock_connect *cmd = buf;
+ struct rfcomm_sock *rfsock;
+ bdaddr_t dst;
+ uuid_t uuid;
+ int hal_fd = -1;
- return -1;
+ DBG("");
+
+ android2bdaddr(cmd->bdaddr, &dst);
+ rfsock = create_rfsock(-1, &hal_fd);
+ bacpy(&rfsock->dst, &dst);
+
+ memset(&uuid, 0, sizeof(uuid));
+ uuid.type = SDP_UUID128;
+ memcpy(&uuid.value.uuid128, cmd->uuid, sizeof(uint128_t));
+
+ if (bt_search_service(&adapter_addr, &dst, &uuid, sdp_search_cb, rfsock,
+ NULL) < 0) {
+ error("Failed to search SDP records");
+ cleanup_rfsock(rfsock);
+ return -1;
+ }
+
+ return hal_fd;
}
void bt_sock_handle_cmd(int sk, uint8_t opcode, void *buf, uint16_t len)
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
This defines structures for socket HAL. We need to emulate Android
sockets by sending connect/accept signals over file descriptor.
Handle HAL socket listen call. Create RFCOMM socket and wait for events.
---
android/socket.c | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 79 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 9c94c03..0731bd9 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -27,8 +27,12 @@
#include <glib.h>
#include <stdbool.h>
+#include <unistd.h>
+#include <errno.h>
#include "lib/bluetooth.h"
+#include "btio/btio.h"
+#include "lib/sdp.h"
#include "log.h"
#include "hal-msg.h"
#include "hal-ipc.h"
@@ -40,6 +44,50 @@
static bdaddr_t adapter_addr;
+/* Simple list of RFCOMM server sockets */
+GList *servers = NULL;
+
+/* Simple list of RFCOMM connected sockets */
+GList *connections = NULL;
+
+struct rfcomm_sock {
+ int fd; /* descriptor for communication with Java framework */
+ int real_sock; /* real RFCOMM socket */
+ int channel; /* RFCOMM channel */
+};
+
+static struct rfcomm_sock *create_rfsock(int sock, int *hal_fd)
+{
+ int fds[2] = {-1, -1};
+ struct rfcomm_sock *rfsock;
+
+ if (socketpair(AF_LOCAL, SOCK_STREAM, 0, fds) < 0) {
+ error("socketpair(): %s", strerror(errno));
+ *hal_fd = -1;
+ return NULL;
+ }
+
+ rfsock = g_new0(struct rfcomm_sock, 1);
+ rfsock->fd = fds[0];
+ *hal_fd = fds[1];
+ rfsock->real_sock = sock;
+
+ return rfsock;
+}
+
+static void cleanup_rfsock(struct rfcomm_sock *rfsock)
+{
+ DBG("rfsock: %p fd %d real_sock %d chan %u",
+ rfsock, rfsock->fd, rfsock->real_sock, rfsock->channel);
+
+ if (rfsock->fd > 0)
+ close(rfsock->fd);
+ if (rfsock->real_sock > 0)
+ close(rfsock->real_sock);
+
+ g_free(rfsock);
+}
+
static struct {
uint8_t uuid[16];
uint8_t channel;
@@ -71,8 +119,16 @@ static int get_rfcomm_default_chan(const uint8_t *uuid)
return -ENOENT;
}
+static void accept_cb(GIOChannel *io, GError *err, gpointer user_data)
+{
+}
+
static int handle_listen(void *buf)
{
+ struct hal_cmd_sock_listen *cmd = buf;
+ struct rfcomm_sock *rfsock;
+ GIOChannel *io;
+ GError *err = NULL;
int hal_fd;
int chan;
@@ -82,6 +138,29 @@ static int handle_listen(void *buf)
if (chan < 0)
return chan;
+ DBG("rfcomm channel %d", chan);
+
+ rfsock = create_rfsock(-1, &hal_fd);
+ if (!rfsock)
+ return -1;
+
+ io = bt_io_listen(accept_cb, NULL, rfsock, NULL, &err,
+ BT_IO_OPT_SOURCE_BDADDR, &adapter_addr,
+ BT_IO_OPT_CHANNEL, chan,
+ BT_IO_OPT_INVALID);
+ if (!io) {
+ error("Failed listen: %s", err->message);
+ g_error_free(err);
+ cleanup_rfsock(rfsock);
+ return -1;
+ }
+
+ rfsock->real_sock = g_io_channel_unix_get_fd(io);
+ servers = g_list_append(servers, rfsock);
+
+ DBG("real_sock %d fd %d hal_fd %d",
+ rfsock->real_sock, rfsock->fd, hal_fd);
+
return hal_fd;
}
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
RFCOMM default channel is the same like in other BlueZ code, it is
defined in src/profile.c
---
android/socket.c | 45 +++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 43 insertions(+), 2 deletions(-)
diff --git a/android/socket.c b/android/socket.c
index e580036..9c94c03 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -35,13 +35,54 @@
#include "ipc.h"
#include "socket.h"
+#define OPP_DEFAULT_CHANNEL 9
+#define PBAP_DEFAULT_CHANNEL 15
+
static bdaddr_t adapter_addr;
+static struct {
+ uint8_t uuid[16];
+ uint8_t channel;
+} uuid_to_chan[] = {
+ {
+ .uuid = {
+ 0x00, 0x00, 0x11, 0x2F, 0x00, 0x00, 0x10, 0x00,
+ 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB
+ },
+ .channel = PBAP_DEFAULT_CHANNEL,
+ }, {
+ .uuid = {
+ 0x00, 0x00, 0x11, 0x05, 0x00, 0x00, 0x10, 0x00,
+ 0x80, 0x00, 0x00, 0x80, 0x5F, 0x9B, 0x34, 0xFB
+ },
+ .channel = OPP_DEFAULT_CHANNEL
+ }
+};
+
+static int get_rfcomm_default_chan(const uint8_t *uuid)
+{
+ unsigned int i;
+
+ for (i = 0; i < G_N_ELEMENTS(uuid_to_chan); i++) {
+ if (!memcmp(uuid_to_chan[i].uuid, uuid, 16))
+ return uuid_to_chan[i].channel;
+ }
+
+ return -ENOENT;
+}
+
static int handle_listen(void *buf)
{
- DBG("Not implemented");
+ int hal_fd;
+ int chan;
- return -1;
+ DBG("");
+
+ chan = get_rfcomm_default_chan(cmd->uuid);
+ if (chan < 0)
+ return chan;
+
+ return hal_fd;
}
static int handle_connect(void *buf)
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Framework expects channel to be send.
---
android/socket.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/android/socket.c b/android/socket.c
index 5bedb60..bd8b9a2 100644
--- a/android/socket.c
+++ b/android/socket.c
@@ -480,6 +480,11 @@ static void sdp_search_cb(sdp_list_t *recs, int err, gpointer data)
goto fail;
}
+ if (write(rfsock->fd, &chan, sizeof(chan)) != sizeof(chan)) {
+ error("Error sending RFCOMM channel");
+ goto fail;
+ }
+
rfsock->real_sock = g_io_channel_unix_get_fd(io);
rfsock->channel = chan;
connections = g_list_append(connections, rfsock);
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
Connect signal is used to pass information to framework that socket
is accepted.
---
android/socket.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/android/socket.h b/android/socket.h
index 7aa5574..ba56c9b 100644
--- a/android/socket.h
+++ b/android/socket.h
@@ -21,6 +21,13 @@
*
*/
+struct hal_sock_connect_signal {
+ short size;
+ uint8_t bdaddr[6];
+ int channel;
+ int status;
+} __attribute__((packed));
+
void bt_sock_handle_cmd(int sk, uint8_t opcode, void *buf, uint16_t len);
bool bt_socket_register(int sk, const bdaddr_t *addr);
--
1.7.10.4
From: Andrei Emeltchenko <[email protected]>
---
android/hal-msg.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/android/hal-msg.h b/android/hal-msg.h
index 44fd5c8..9e3a81f 100644
--- a/android/hal-msg.h
+++ b/android/hal-msg.h
@@ -232,6 +232,8 @@ struct hal_cmd_sock_connect {
uint8_t flags;
} __attribute__((packed));
+/* Bluetooth Hidhost HAL api */
+
#define HAL_OP_HIDHOST_CONNECT 0x01
struct hal_cmd_hidhost_connect {
uint8_t bdaddr[6];
--
1.7.10.4