net/atm/signaling.c

37 static void modify_qos(struct atm_vcc *vcc, struct atmsvc_msg *msg)
41 	if (test_bit(ATM_VF_RELEASED, &vcc->flags) ||
42 	    !test_bit(ATM_VF_READY, &vcc->flags))
45 	if (!vcc->dev->ops->change_qos)
49 		msg->reply = vcc->dev->ops->change_qos(vcc, &msg->qos,
64 static int sigd_send(struct atm_vcc *vcc, struct sk_buff *skb)
71 	WARN_ON(refcount_sub_and_test(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc));
72 	vcc = *(struct atm_vcc **) &msg->vcc;
73 	pr_debug("%d (0x%lx)\n", (int)msg->type, (unsigned long)vcc);
74 	sk = sk_atm(vcc);
79 		clear_bit(ATM_VF_WAITING, &vcc->flags);
80 		if (!*vcc->local.sas_addr.prv && !*vcc->local.sas_addr.pub) {
81 			vcc->local.sas_family = AF_ATMSVC;
82 			memcpy(vcc->local.sas_addr.prv,
84 			memcpy(vcc->local.sas_addr.pub,
87 		session_vcc = vcc->session ? vcc->session : vcc;
97 		clear_bit(ATM_VF_REGIS, &vcc->flags);
98 		clear_bit(ATM_VF_READY, &vcc->flags);
100 		clear_bit(ATM_VF_WAITING, &vcc->flags);
103 		vcc = *(struct atm_vcc **)&msg->listen_vcc;
104 		sk = sk_atm(vcc);
108 			sigd_enq(NULL, as_reject, vcc, NULL, NULL);
120 		set_bit(ATM_VF_RELEASED, &vcc->flags);
121 		vcc_release_async(vcc, msg->reply);
124 		modify_qos(vcc, msg);
130 		clear_bit(ATM_VF_WAITING, &vcc->flags);
142 void sigd_enq2(struct atm_vcc *vcc, enum atmsvc_msg_type type,
151 	pr_debug("%d (0x%p)\n", (int)type, vcc);
156 	*(struct atm_vcc **) &msg->vcc = vcc;
161 	if (vcc)
162 		msg->sap = vcc->sap;
165 	if (vcc)
166 		msg->local = vcc->local;
169 	if (vcc) {
170 		if (type == as_connect && test_bit(ATM_VF_SESSION, &vcc->flags))
175 	if (vcc)
176 		set_bit(ATM_VF_REGIS, &vcc->flags);
179 void sigd_enq(struct atm_vcc *vcc, enum atmsvc_msg_type type,
183 	sigd_enq2(vcc, type, listen_vcc, pvc, svc, vcc ? &vcc->qos : NULL, 0);
187 static void purge_vcc(struct atm_vcc *vcc)
189 	if (sk_atm(vcc)->sk_family == PF_ATMSVC &&
190 	    !test_bit(ATM_VF_META, &vcc->flags)) {
191 		set_bit(ATM_VF_RELEASED, &vcc->flags);
192 		clear_bit(ATM_VF_REGIS, &vcc->flags);
193 		vcc_release_async(vcc, -EUNATCH);
197 static void sigd_close(struct atm_vcc *vcc)
204 	if (skb_peek(&sk_atm(vcc)->sk_receive_queue))
206 	skb_queue_purge(&sk_atm(vcc)->sk_receive_queue);
213 			vcc = atm_sk(s);
215 			purge_vcc(vcc);
233 int sigd_attach(struct atm_vcc *vcc)
238 	sigd = vcc;
239 	vcc->dev = &sigd_dev;
240 	vcc_insert_socket(sk_atm(vcc));
241 	set_bit(ATM_VF_META, &vcc->flags);
242 	set_bit(ATM_VF_READY, &vcc->flags);