[PATCH 2/3] Send received EAPOL ip addr received in PeerJoined.
Dan Williams
dcbw at redhat.com
Wed Nov 2 07:02:45 PDT 2016
On Wed, 2016-11-02 at 15:49 +0530, Nishant Chaprana wrote:
> Description: This patch sends EAPOL ip addr in PeerJoined event.
> It is similar to ip_addr sent in AP_STA_CONNECTED event over
> CTRL_IFACE.
>
> Signed-off-by: Nishant Chaprana <n.chaprana at samsung.com>
> ---
> src/ap/hostapd.h | 3 ++-
> src/ap/sta_info.c | 11 ++++++-----
> wpa_supplicant/ap.c | 5 +++--
> wpa_supplicant/dbus/dbus_new.c | 13 +++++++++----
> wpa_supplicant/dbus/dbus_new.h | 2 +-
> wpa_supplicant/notify.c | 9 +++++----
> wpa_supplicant/notify.h | 2 +-
> 7 files changed, 27 insertions(+), 18 deletions(-)
>
> diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
> index fd5aaed..d3cf650 100644
> --- a/src/ap/hostapd.h
> +++ b/src/ap/hostapd.h
> @@ -222,7 +222,8 @@ struct hostapd_data {
> void *wps_event_cb_ctx;
>
> void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr,
> - int authorized, const u8
> *p2p_dev_addr);
> + int authorized, const u8
> *p2p_dev_addr,
> + const u8 *ip);
> void *sta_authorized_cb_ctx;
>
> void (*setup_complete_cb)(void *ctx);
> diff --git a/src/ap/sta_info.c b/src/ap/sta_info.c
> index f12d408..4095768 100644
> --- a/src/ap/sta_info.c
> +++ b/src/ap/sta_info.c
> @@ -1124,8 +1124,8 @@ void ap_sta_set_authorized(struct hostapd_data
> *hapd, struct sta_info *sta,
> char buf[100];
> #ifdef CONFIG_P2P
> u8 addr[ETH_ALEN];
> - u8 ip_addr_buf[4];
> #endif /* CONFIG_P2P */
> + u8 ip_addr_buf[4] = {0, };
>
> if (!!authorized == !!(sta->flags & WLAN_STA_AUTHORIZED))
> return;
> @@ -1150,10 +1150,6 @@ void ap_sta_set_authorized(struct hostapd_data
> *hapd, struct sta_info *sta,
> #endif /* CONFIG_P2P */
> os_snprintf(buf, sizeof(buf), MACSTR, MAC2STR(sta-
> >addr));
>
> - if (hapd->sta_authorized_cb)
> - hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
> - sta->addr, authorized,
> dev_addr);
> -
> if (authorized) {
> char ip_addr[100];
> ip_addr[0] = '\0';
> @@ -1183,6 +1179,11 @@ void ap_sta_set_authorized(struct hostapd_data
> *hapd, struct sta_info *sta,
> AP_STA_DISCONNECTED "%s",
> buf);
> }
>
> + if (hapd->sta_authorized_cb)
> + hapd->sta_authorized_cb(hapd->sta_authorized_cb_ctx,
> + sta->addr, authorized,
> dev_addr,
> + ip_addr_buf);
> +
> #ifdef CONFIG_FST
> if (hapd->iface->fst) {
> if (authorized)
> diff --git a/wpa_supplicant/ap.c b/wpa_supplicant/ap.c
> index 5afb772..600903f 100644
> --- a/wpa_supplicant/ap.c
> +++ b/wpa_supplicant/ap.c
> @@ -521,9 +521,10 @@ static void ap_wps_event_cb(void *ctx, enum
> wps_event event,
>
>
> static void ap_sta_authorized_cb(void *ctx, const u8 *mac_addr,
> - int authorized, const u8
> *p2p_dev_addr)
> + int authorized, const u8
> *p2p_dev_addr,
> + const u8 *ip)
> {
> - wpas_notify_sta_authorized(ctx, mac_addr, authorized,
> p2p_dev_addr);
> + wpas_notify_sta_authorized(ctx, mac_addr, authorized,
> p2p_dev_addr, ip);
> }
>
>
> diff --git a/wpa_supplicant/dbus/dbus_new.c
> b/wpa_supplicant/dbus/dbus_new.c
> index 27b3012..95f4980 100644
> --- a/wpa_supplicant/dbus/dbus_new.c
> +++ b/wpa_supplicant/dbus/dbus_new.c
> @@ -1482,11 +1482,11 @@ void
> wpas_dbus_signal_p2p_invitation_result(struct wpa_supplicant *wpa_s,
> * @peer_addr: P2P Device Address of the peer joining the group
> */
> void wpas_dbus_signal_p2p_peer_joined(struct wpa_supplicant *wpa_s,
> - const u8 *peer_addr)
> + const u8 *peer_addr, const u8
> *ip)
> {
> struct wpas_dbus_priv *iface;
> DBusMessage *msg;
> - DBusMessageIter iter;
> + DBusMessageIter iter, dict_iter;
> char peer_obj_path[WPAS_DBUS_OBJECT_PATH_MAX], *path;
> struct wpa_supplicant *parent;
>
> @@ -1518,8 +1518,12 @@ void wpas_dbus_signal_p2p_peer_joined(struct
> wpa_supplicant *wpa_s,
>
> dbus_message_iter_init_append(msg, &iter);
> path = peer_obj_path;
> - if (!dbus_message_iter_append_basic(&iter,
> DBUS_TYPE_OBJECT_PATH,
> - &path)) {
> + if (!dbus_message_iter_append_basic(&iter,
> DBUS_TYPE_OBJECT_PATH, &path)
> + || (!wpa_dbus_dict_open_write(&iter, &dict_iter) ||
> + (ip && !wpa_dbus_dict_append_byte_array(&dict_iter,
> "IpAddr",
> + (const char
> *) ip, 4)) ||
> + !wpa_dbus_dict_close_write(&iter, &dict_iter))
> + ) {
> wpa_printf(MSG_ERROR, "dbus: Failed to construct
> signal");
> } else {
> dbus_connection_send(iface->con, msg, NULL);
> @@ -4106,6 +4110,7 @@ static const struct wpa_dbus_signal_desc
> wpas_dbus_p2p_group_signals[] = {
> { "PeerJoined", WPAS_DBUS_NEW_IFACE_P2P_GROUP,
> {
> { "peer", "o", ARG_OUT },
> + { "ip_address", "a{sv}", ARG_OUT },
> END_ARGS
We cannot change the signatures of D-Bus signals or functions without
breaking backwards compatibility for existing applications. We either
make them use dictionaries in the first place, or we have to add new
signals.
In this case, isn't the peer IP address available as a property on the
Peer object? The application can simply listen for PeerJoined and then
call GetProperties on the Peer object to get the IP. If not, we should
add the IP address as a standard property on the Peer object.
A better long-term option is to update the supplicant to support the
standard ObjectManager interface, which has signals that include all
properties when the object gets created. That would solve the issue
that I assume you're trying to work around here, that you have to make
two D-Bus method calls when a peer joins.
Dan
> }
> },
> diff --git a/wpa_supplicant/dbus/dbus_new.h
> b/wpa_supplicant/dbus/dbus_new.h
> index d64fcee..c2eea13 100644
> --- a/wpa_supplicant/dbus/dbus_new.h
> +++ b/wpa_supplicant/dbus/dbus_new.h
> @@ -215,7 +215,7 @@ void wpas_dbus_signal_p2p_sd_response(struct
> wpa_supplicant *wpa_s,
> const u8 *sa, u16
> update_indic,
> const u8 *tlvs, size_t
> tlvs_len);
> void wpas_dbus_signal_p2p_peer_joined(struct wpa_supplicant *wpa_s,
> - const u8 *member);
> + const u8 *member, const u8
> *ip);
> void wpas_dbus_signal_p2p_wps_failed(struct wpa_supplicant *wpa_s,
> struct wps_event_fail *fail);
> void wpas_dbus_signal_certification(struct wpa_supplicant *wpa_s,
> diff --git a/wpa_supplicant/notify.c b/wpa_supplicant/notify.c
> index 67e36ae..435c0a1 100644
> --- a/wpa_supplicant/notify.c
> +++ b/wpa_supplicant/notify.c
> @@ -707,7 +707,8 @@ void wpas_notify_p2p_invitation_received(struct
> wpa_supplicant *wpa_s,
>
> static void wpas_notify_ap_sta_authorized(struct wpa_supplicant
> *wpa_s,
> const u8 *sta,
> - const u8 *p2p_dev_addr)
> + const u8 *p2p_dev_addr,
> + const u8 *ip)
> {
> #ifdef CONFIG_P2P
> wpas_p2p_notify_ap_sta_authorized(wpa_s, p2p_dev_addr);
> @@ -717,7 +718,7 @@ static void wpas_notify_ap_sta_authorized(struct
> wpa_supplicant *wpa_s,
> * check P2P itself.
> */
> if (p2p_dev_addr)
> - wpas_dbus_signal_p2p_peer_joined(wpa_s,
> p2p_dev_addr);
> + wpas_dbus_signal_p2p_peer_joined(wpa_s,
> p2p_dev_addr, ip);
> #endif /* CONFIG_P2P */
>
> /* Notify listeners a new station has been authorized */
> @@ -745,10 +746,10 @@ static void
> wpas_notify_ap_sta_deauthorized(struct wpa_supplicant *wpa_s,
>
> void wpas_notify_sta_authorized(struct wpa_supplicant *wpa_s,
> const u8 *mac_addr, int authorized,
> - const u8 *p2p_dev_addr)
> + const u8 *p2p_dev_addr, const u8
> *ip)
> {
> if (authorized)
> - wpas_notify_ap_sta_authorized(wpa_s, mac_addr,
> p2p_dev_addr);
> + wpas_notify_ap_sta_authorized(wpa_s, mac_addr,
> p2p_dev_addr, ip);
> else
> wpas_notify_ap_sta_deauthorized(wpa_s, mac_addr,
> p2p_dev_addr);
> }
> diff --git a/wpa_supplicant/notify.h b/wpa_supplicant/notify.h
> index 8cce0f3..59aa126 100644
> --- a/wpa_supplicant/notify.h
> +++ b/wpa_supplicant/notify.h
> @@ -85,7 +85,7 @@ void wpas_notify_resume(struct wpa_global *global);
>
> void wpas_notify_sta_authorized(struct wpa_supplicant *wpa_s,
> const u8 *mac_addr, int authorized,
> - const u8 *p2p_dev_addr);
> + const u8 *p2p_dev_addr, const u8
> *ip);
> void wpas_notify_p2p_find_stopped(struct wpa_supplicant *wpa_s);
> void wpas_notify_p2p_device_found(struct wpa_supplicant *wpa_s,
> const u8 *dev_addr, int
> new_device);
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