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Separate netlink socket for receive message and send event

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This commit is contained in:
vemax78
2014-12-28 16:14:19 +01:00
parent b05d6631f4
commit 0c27172ca6
5 changed files with 60 additions and 35 deletions
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61
src/wtp/kmod/netlinkapp.c
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@ -246,22 +246,23 @@ static int sc_netlink_link(struct sk_buff* skb, struct genl_info* info) {
TRACEKMOD("### sc_netlink_link\n");
if (!sc_netlink_usermodeid) {
/* Initialize library */
ret = sc_capwap_init(1);
if (!ret) {
sc_netlink_usermodeid = portid;
/* Deny unload module */
try_module_get(THIS_MODULE);
}
} else if (sc_netlink_usermodeid == portid) {
ret = -EALREADY;
} else {
ret = -EBUSY;
/* */
if (sc_netlink_usermodeid) {
TRACEKMOD("*** Busy kernel link\n");
return -EBUSY;
}
return ret;
/* Initialize library */
ret = sc_capwap_init();
if (ret) {
return ret;
}
/* Deny unload module */
sc_netlink_usermodeid = portid;
try_module_get(THIS_MODULE);
return 0;
}
/* */
@ -269,7 +270,7 @@ static int sc_netlink_reset(struct sk_buff* skb, struct genl_info* info) {
TRACEKMOD("### sc_netlink_reset\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
}
@ -286,21 +287,19 @@ static int sc_netlink_reset(struct sk_buff* skb, struct genl_info* info) {
static int sc_netlink_notify(struct notifier_block* nb, unsigned long state, void* _notify) {
struct netlink_notify* notify = (struct netlink_notify*)_notify;
if (state == NETLINK_URELEASE) {
if ((state == NETLINK_URELEASE) && (sc_netlink_usermodeid == netlink_notify_portid(notify))) {
rtnl_lock();
if (sc_netlink_usermodeid == netlink_notify_portid(notify)) {
sc_netlink_usermodeid = 0;
sc_netlink_usermodeid = 0;
/* Close all devices */
sc_netlink_unregister_alldevice();
/* Close all devices */
sc_netlink_unregister_alldevice();
/* Close capwap engine */
sc_capwap_close();
/* Close capwap engine */
sc_capwap_close();
/* Allow unload module */
module_put(THIS_MODULE);
}
/* Allow unload module */
module_put(THIS_MODULE);
rtnl_unlock();
}
@ -315,7 +314,7 @@ static int sc_netlink_bind(struct sk_buff* skb, struct genl_info* info) {
TRACEKMOD("### sc_netlink_bind\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
}
@ -343,7 +342,7 @@ static int sc_netlink_connect(struct sk_buff* skb, struct genl_info* info) {
TRACEKMOD("### sc_netlink_connect\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
}
@ -388,7 +387,7 @@ static int sc_netlink_send_keepalive(struct sk_buff* skb, struct genl_info* info
TRACEKMOD("### sc_netlink_send_keepalive\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
}
@ -418,7 +417,7 @@ static int sc_netlink_send_data(struct sk_buff* skb, struct genl_info* info) {
TRACEKMOD("### sc_netlink_send_data\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
} else if (!info->attrs[NLSMARTCAPWAP_ATTR_RADIOID] || !info->attrs[NLSMARTCAPWAP_ATTR_DATA_FRAME]) {
return -EINVAL;
@ -494,7 +493,7 @@ static int sc_netlink_join_mac80211_device(struct sk_buff* skb, struct genl_info
TRACEKMOD("### sc_netlink_join_mac80211_device\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
}
@ -551,7 +550,7 @@ static int sc_netlink_leave_mac80211_device(struct sk_buff* skb, struct genl_inf
TRACEKMOD("### sc_netlink_leave_mac80211_device\n");
/* Check Link */
if (sc_netlink_usermodeid != genl_info_snd_portid(info)) {
if (!sc_netlink_usermodeid) {
return -ENOLINK;
}