From: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
To: linux-bluetooth@vger.kernel.org
Cc: Ravi kumar Veeramally <ravikumar.veeramally@linux.intel.com>
Subject: [PATCH_v7 4/5] bnep: Refactored bnep connect and disconnect calls
Date: Fri, 20 Dec 2013 13:40:52 +0200 [thread overview]
Message-ID: <1387539653-7271-4-git-send-email-ravikumar.veeramally@linux.intel.com> (raw)
In-Reply-To: <1387539653-7271-1-git-send-email-ravikumar.veeramally@linux.intel.com>
Refactored bnep connect and disconnect calls to simplify and
keeping bnep related functionality behind curtains.
bnep_connect calls takes care of bnep_setup until interface up
then connect callback will be called. Set disconnect callback
when connect call succeeds. bnep_disconnect should be
called only when iface is up/connected.
---
android/pan.c | 54 +++++++++++++++----------------
profiles/network/bnep.c | 75 ++++++++++++++++++++++---------------------
profiles/network/bnep.h | 6 ++--
profiles/network/connection.c | 48 ++++++++++++++++-----------
4 files changed, 96 insertions(+), 87 deletions(-)
diff --git a/android/pan.c b/android/pan.c
index b83f534..689c7ef 100644
--- a/android/pan.c
+++ b/android/pan.c
@@ -54,7 +54,7 @@ struct pan_device {
uint8_t conn_state;
uint8_t role;
GIOChannel *io;
- guint watch;
+ struct bnep *session;
};
static int device_cmp(gconstpointer s, gconstpointer user_data)
@@ -67,16 +67,13 @@ static int device_cmp(gconstpointer s, gconstpointer user_data)
static void pan_device_free(struct pan_device *dev)
{
- if (dev->watch > 0) {
- g_source_remove(dev->watch);
- dev->watch = 0;
- }
-
if (dev->io) {
+ g_io_channel_shutdown(dev->io, FALSE, NULL);
g_io_channel_unref(dev->io);
dev->io = NULL;
}
+ bnep_free(dev->session);
devices = g_slist_remove(devices, dev);
g_free(dev);
@@ -124,21 +121,16 @@ static void bt_pan_notify_ctrl_state(struct pan_device *dev, uint8_t state)
&ev);
}
-static gboolean bnep_watchdog_cb(GIOChannel *chan, GIOCondition cond,
- gpointer data)
+static void bnep_disconn_cb(void *data)
{
struct pan_device *dev = data;
DBG("%s disconnected", dev->iface);
- bnep_if_down(dev->iface);
- bnep_conndel(&dev->dst);
bt_pan_notify_conn_state(dev, HAL_PAN_STATE_DISCONNECTED);
-
- return FALSE;
}
-static void bnep_conn_cb(GIOChannel *chan, char *iface, int err, void *data)
+static void bnep_conn_cb(char *iface, int err, void *data)
{
struct pan_device *dev = data;
@@ -146,7 +138,6 @@ static void bnep_conn_cb(GIOChannel *chan, char *iface, int err, void *data)
if (err < 0) {
error("bnep connect req failed: %s", strerror(-err));
- bnep_conndel(&dev->dst);
bt_pan_notify_conn_state(dev, HAL_PAN_STATE_DISCONNECTED);
return;
}
@@ -157,17 +148,12 @@ static void bnep_conn_cb(GIOChannel *chan, char *iface, int err, void *data)
bt_pan_notify_ctrl_state(dev, HAL_PAN_CTRL_ENABLED);
bt_pan_notify_conn_state(dev, HAL_PAN_STATE_CONNECTED);
-
- dev->watch = g_io_add_watch(chan, G_IO_ERR | G_IO_HUP | G_IO_NVAL,
- bnep_watchdog_cb, dev);
- g_io_channel_unref(dev->io);
- dev->io = NULL;
}
static void connect_cb(GIOChannel *chan, GError *err, gpointer data)
{
struct pan_device *dev = data;
- uint16_t src, dst;
+ uint16_t l_role, r_role;
int perr, sk;
DBG("");
@@ -177,16 +163,29 @@ static void connect_cb(GIOChannel *chan, GError *err, gpointer data)
goto fail;
}
- src = (local_role == HAL_PAN_ROLE_NAP) ? BNEP_SVC_NAP : BNEP_SVC_PANU;
- dst = (dev->role == HAL_PAN_ROLE_NAP) ? BNEP_SVC_NAP : BNEP_SVC_PANU;
+ l_role = (local_role == HAL_PAN_ROLE_NAP) ? BNEP_SVC_NAP :
+ BNEP_SVC_PANU;
+ r_role = (dev->role == HAL_PAN_ROLE_NAP) ? BNEP_SVC_NAP : BNEP_SVC_PANU;
+
sk = g_io_channel_unix_get_fd(dev->io);
- perr = bnep_connect(sk, src, dst, bnep_conn_cb, dev);
+ dev->session = bnep_new(sk, l_role, r_role);
+ if (!dev->session)
+ goto fail;
+
+ perr = bnep_connect(dev->session, bnep_conn_cb, dev);
if (perr < 0) {
error("bnep connect req failed: %s", strerror(-perr));
goto fail;
}
+ bnep_set_disconnect(dev->session, bnep_disconn_cb, dev);
+
+ if (dev->io) {
+ g_io_channel_unref(dev->io);
+ dev->io = NULL;
+ }
+
return;
fail:
@@ -284,13 +283,10 @@ static void bt_pan_disconnect(const void *buf, uint16_t len)
}
dev = l->data;
- if (dev->watch) {
- g_source_remove(dev->watch);
- dev->watch = 0;
- }
- bnep_if_down(dev->iface);
- bnep_conndel(&dst);
+ if (dev->conn_state == HAL_PAN_STATE_CONNECTED)
+ bnep_disconnect(dev->session);
+
bt_pan_notify_conn_state(dev, HAL_PAN_STATE_DISCONNECTED);
status = HAL_STATUS_SUCCESS;
diff --git a/profiles/network/bnep.c b/profiles/network/bnep.c
index 4bc08d9..eace07a 100644
--- a/profiles/network/bnep.c
+++ b/profiles/network/bnep.c
@@ -39,6 +39,7 @@
#include <bluetooth/bluetooth.h>
#include <bluetooth/l2cap.h>
#include <bluetooth/bnep.h>
+#include <btio/btio.h>
#include <glib.h>
@@ -76,25 +77,12 @@ struct bnep {
guint attempts;
guint setup_to;
guint watch;
- void *data;
bnep_connect_cb conn_cb;
+ void *conn_data;
bnep_disconnect_cb disconn_cb;
void *disconn_data;
};
-static void free_bnep_connect(struct bnep *session)
-{
- if (!session)
- return;
-
- if (session->io) {
- g_io_channel_unref(session->io);
- session->io = NULL;
- }
-
- g_free(session);
-}
-
uint16_t bnep_service_id(const char *svc)
{
int i;
@@ -251,6 +239,17 @@ int bnep_if_down(const char *devname)
return 0;
}
+static gboolean bnep_watchdog_cb(GIOChannel *chan, GIOCondition cond,
+ gpointer data)
+{
+ struct bnep *session = data;
+
+ if (session->disconn_cb)
+ session->disconn_cb(session->disconn_data);
+
+ return FALSE;
+}
+
static gboolean bnep_setup_cb(GIOChannel *chan, GIOCondition cond,
gpointer data)
{
@@ -258,12 +257,11 @@ static gboolean bnep_setup_cb(GIOChannel *chan, GIOCondition cond,
struct bnep_control_rsp *rsp;
struct timeval timeo;
char pkt[BNEP_MTU];
- char iface[16];
ssize_t r;
int sk;
if (cond & G_IO_NVAL)
- goto failed;
+ return FALSE;
if (session->setup_to > 0) {
g_source_remove(session->setup_to);
@@ -315,24 +313,29 @@ static gboolean bnep_setup_cb(GIOChannel *chan, GIOCondition cond,
setsockopt(sk, SOL_SOCKET, SO_RCVTIMEO, &timeo, sizeof(timeo));
sk = g_io_channel_unix_get_fd(session->io);
- if (bnep_connadd(sk, session->src, iface)) {
+ if (bnep_connadd(sk, session->src, session->iface)) {
error("bnep conn could not be added");
goto failed;
}
- if (bnep_if_up(iface)) {
- error("could not up %s", iface);
+ if (bnep_if_up(session->iface)) {
+ error("could not up %s", session->iface);
+ bnep_conndel(&session->dst_addr);
goto failed;
}
- session->conn_cb(chan, iface, 0, session->data);
- free_bnep_connect(session);
+ session->watch = g_io_add_watch(session->io,
+ G_IO_ERR | G_IO_HUP | G_IO_NVAL,
+ (GIOFunc) bnep_watchdog_cb, session);
+ g_io_channel_unref(session->io);
+ session->io = NULL;
+
+ session->conn_cb(session->iface, 0, session->conn_data);
return FALSE;
failed:
- session->conn_cb(NULL, NULL, -EIO, session->data);
- free_bnep_connect(session);
+ session->conn_cb(NULL, -EIO, session->conn_data);
return FALSE;
}
@@ -376,8 +379,7 @@ static gboolean bnep_conn_req_to(gpointer user_data)
return TRUE;
}
- session->conn_cb(NULL, NULL, -ETIMEDOUT, session->data);
- free_bnep_connect(session);
+ session->conn_cb(NULL, -ETIMEDOUT, session->conn_data);
return FALSE;
}
@@ -423,22 +425,25 @@ void bnep_free(struct bnep *session)
g_free(session);
}
-int bnep_connect(int sk, uint16_t src, uint16_t dst, bnep_connect_cb conn_cb,
- void *data)
+int bnep_connect(struct bnep *session, bnep_connect_cb conn_cb, void *data)
{
- struct bnep *session;
+ GError *gerr = NULL;
int err;
- if (!conn_cb)
+ if (!session || !conn_cb)
return -EINVAL;
- session = g_new0(struct bnep, 1);
- session->io = g_io_channel_unix_new(sk);
session->attempts = 0;
- session->src = src;
- session->dst = dst;
session->conn_cb = conn_cb;
- session->data = data;
+ session->conn_data = data;
+
+ bt_io_get(session->io, &gerr, BT_IO_OPT_DEST_BDADDR, &session->dst_addr,
+ BT_IO_OPT_INVALID);
+ if (gerr) {
+ error("%s", gerr->message);
+ g_error_free(gerr);
+ return -EINVAL;
+ }
err = bnep_setup_conn_req(session);
if (err < 0)
@@ -446,8 +451,6 @@ int bnep_connect(int sk, uint16_t src, uint16_t dst, bnep_connect_cb conn_cb,
session->setup_to = g_timeout_add_seconds(CON_SETUP_TO,
bnep_conn_req_to, session);
- g_io_add_watch(session->io, G_IO_IN | G_IO_ERR | G_IO_HUP | G_IO_NVAL,
- bnep_setup_cb, session);
return 0;
}
diff --git a/profiles/network/bnep.h b/profiles/network/bnep.h
index d3c5c1b..c07cd77 100644
--- a/profiles/network/bnep.h
+++ b/profiles/network/bnep.h
@@ -40,10 +40,8 @@ int bnep_if_down(const char *devname);
int bnep_add_to_bridge(const char *devname, const char *bridge);
int bnep_del_from_bridge(const char *devname, const char *bridge);
-typedef void (*bnep_connect_cb) (GIOChannel *chan, char *iface, int err,
- void *data);
-int bnep_connect(int sk, uint16_t src, uint16_t dst, bnep_connect_cb conn_cb,
- void *data);
+typedef void (*bnep_connect_cb) (char *iface, int err, void *data);
+int bnep_connect(struct bnep *b, bnep_connect_cb conn_cb, void *data);
typedef void (*bnep_disconnect_cb) (void *data);
void bnep_set_disconnect(struct bnep *session, bnep_disconnect_cb disconn_cb,
void *data);
diff --git a/profiles/network/connection.c b/profiles/network/connection.c
index fb3e1ce..c66987d 100644
--- a/profiles/network/connection.c
+++ b/profiles/network/connection.c
@@ -72,6 +72,7 @@ struct network_conn {
guint dc_id;
struct network_peer *peer;
DBusMessage *connect;
+ struct bnep *session;
};
static GSList *peers = NULL;
@@ -106,8 +107,7 @@ static struct network_conn *find_connection_by_state(GSList *list,
return NULL;
}
-static gboolean bnep_watchdog_cb(GIOChannel *chan, GIOCondition cond,
- gpointer data)
+static void bnep_disconn_cb(gpointer data)
{
struct network_conn *nc = data;
DBusConnection *conn = btd_get_dbus_connection();
@@ -126,12 +126,12 @@ static gboolean bnep_watchdog_cb(GIOChannel *chan, GIOCondition cond,
info("%s disconnected", nc->dev);
- bnep_if_down(nc->dev);
nc->state = DISCONNECTED;
memset(nc->dev, 0, sizeof(nc->dev));
strcpy(nc->dev, "bnep%d");
- return FALSE;
+ bnep_free(nc->session);
+ nc->session = NULL;
}
static void local_connect_cb(struct network_conn *nc, int err)
@@ -155,12 +155,21 @@ static void local_connect_cb(struct network_conn *nc, int err)
static void cancel_connection(struct network_conn *nc, int err)
{
btd_service_connecting_complete(nc->service, err);
+
if (nc->connect)
local_connect_cb(nc, err);
- g_io_channel_shutdown(nc->io, TRUE, NULL);
- g_io_channel_unref(nc->io);
- nc->io = NULL;
+ if (nc->io) {
+ g_io_channel_shutdown(nc->io, FALSE, NULL);
+ g_io_channel_unref(nc->io);
+ nc->io = NULL;
+ }
+
+ if (nc->state == CONNECTED)
+ bnep_disconnect(nc->session);
+
+ bnep_free(nc->session);
+ nc->session = NULL;
nc->state = DISCONNECTED;
}
@@ -169,11 +178,7 @@ static void connection_destroy(DBusConnection *conn, void *user_data)
{
struct network_conn *nc = user_data;
- if (nc->state == CONNECTED) {
- bnep_if_down(nc->dev);
- bnep_conndel(device_get_address(nc->peer->device));
- } else if (nc->io)
- cancel_connection(nc, -EIO);
+ cancel_connection(nc, -EIO);
}
static void disconnect_cb(struct btd_device *device, gboolean removal,
@@ -186,7 +191,7 @@ static void disconnect_cb(struct btd_device *device, gboolean removal,
connection_destroy(NULL, user_data);
}
-static void bnep_conn_cb(GIOChannel *chan, char *iface, int err, void *data)
+static void bnep_conn_cb(char *iface, int err, void *data)
{
struct network_conn *nc = data;
const char *path;
@@ -220,10 +225,6 @@ static void bnep_conn_cb(GIOChannel *chan, char *iface, int err, void *data)
nc->state = CONNECTED;
nc->dc_id = device_add_disconnect_watch(nc->peer->device, disconnect_cb,
nc, NULL);
- g_io_add_watch(chan, G_IO_ERR | G_IO_HUP | G_IO_NVAL,
- bnep_watchdog_cb, nc);
- g_io_channel_unref(nc->io);
- nc->io = NULL;
return;
@@ -242,12 +243,23 @@ static void connect_cb(GIOChannel *chan, GError *err, gpointer data)
}
sk = g_io_channel_unix_get_fd(nc->io);
- perr = bnep_connect(sk, BNEP_SVC_PANU, nc->id, bnep_conn_cb, nc);
+ nc->session = bnep_new(sk, BNEP_SVC_PANU, nc->id);
+ if (!nc->session)
+ goto failed;
+
+ perr = bnep_connect(nc->session, bnep_conn_cb, nc);
if (perr < 0) {
error("bnep connect(): %s (%d)", strerror(-perr), -perr);
goto failed;
}
+ bnep_set_disconnect(nc->session, bnep_disconn_cb, nc);
+
+ if (nc->io) {
+ g_io_channel_unref(nc->io);
+ nc->io = NULL;
+ }
+
return;
failed:
--
1.8.3.2
next prev parent reply other threads:[~2013-12-20 11:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-20 11:40 [PATCH_v7 1/5] bnep: Rename struct bnep_conn to bnep and vars for better readability Ravi kumar Veeramally
2013-12-20 11:40 ` [PATCH_v7 2/5] bnep: Add bnep_new and bnep_free api's Ravi kumar Veeramally
2013-12-20 11:40 ` [PATCH_v7 3/5] bnep: Add bnep_disconnect and bnep_set_disconnect apis Ravi kumar Veeramally
2013-12-20 11:40 ` Ravi kumar Veeramally [this message]
2013-12-20 11:40 ` [PATCH_v7 5/5] bnep: Refactored bnep server apis for bridge addition and deletion Ravi kumar Veeramally
2013-12-20 12:56 ` [PATCH_v7 1/5] bnep: Rename struct bnep_conn to bnep and vars for better readability Luiz Augusto von Dentz
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1387539653-7271-4-git-send-email-ravikumar.veeramally@linux.intel.com \
--to=ravikumar.veeramally@linux.intel.com \
--cc=linux-bluetooth@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox