net/atm/clip.c

57 	struct atm_vcc *vcc;
64 	vcc = rcu_dereference(atmarpd);
65 	if (!vcc) {
78 	atm_force_charge(vcc, skb->truesize);
80 	sk = sk_atm(vcc);
127 	pr_err("ATMARP: failed (entry %p, vcc 0x%p)\n", entry, clip_vcc);
144 			pr_debug("releasing vcc %p->%p of entry %p\n",
145 				 cv, cv->vcc, entry);
146 			vcc_release_async(cv->vcc, -ETIMEDOUT);
179 	struct atm_vcc *vcc;
182 	vcc = ATM_SKB(skb)->vcc;
183 	if (!vcc || !atm_charge(vcc, skb->truesize)) {
187 	pr_debug("pushing to %p\n", vcc);
188 	pr_debug("using %p\n", CLIP_VCC(vcc)->old_push);
189 	CLIP_VCC(vcc)->old_push(vcc, skb);
202 static void clip_push(struct atm_vcc *vcc, struct sk_buff *skb)
204 	struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
212 		clip_vcc->old_push(vcc, NULL);	/* pass on the bad news */
216 	atm_return(vcc, skb->truesize);
228 	ATM_SKB(skb)->vcc = vcc;
256 static void clip_pop(struct atm_vcc *vcc, struct sk_buff *skb)
258 	struct clip_vcc *clip_vcc = CLIP_VCC(vcc);
263 	pr_debug("(vcc %p)\n", vcc);
264 	clip_vcc->old_pop(vcc, skb);
269 	if (atm_may_send(vcc, 0)) {
330 static int clip_encap(struct atm_vcc *vcc, int mode)
332 	if (!CLIP_VCC(vcc))
335 	CLIP_VCC(vcc)->encap = mode;
346 	struct atm_vcc *vcc;
387 	ATM_SKB(skb)->vcc = vcc = entry->vccs->vcc;
388 	pr_debug("using neighbour %p, vcc %p\n", n, vcc);
396 	atm_account_tx(vcc, skb);
398 	pr_debug("atm_skb(%p)->vcc(%p)->dev(%p)\n", skb, vcc, vcc->dev);
406 	vcc->send(vcc, skb);
407 	if (atm_may_send(vcc, 0)) {
426 static int clip_mkip(struct atm_vcc *vcc, int timeout)
430 	if (!vcc->push)
432 	if (vcc->user_back)
437 	pr_debug("%p vcc %p\n", clip_vcc, vcc);
438 	clip_vcc->vcc = vcc;
439 	vcc->user_back = clip_vcc;
440 	set_bit(ATM_VF_IS_CLIP, &vcc->flags);
446 	clip_vcc->old_push = vcc->push;
447 	clip_vcc->old_pop = vcc->pop;
448 	vcc->push = clip_push;
449 	vcc->pop = clip_pop;
452 	vcc_process_recv_queue(vcc);
457 static int clip_setentry(struct atm_vcc *vcc, __be32 ip)
465 	if (vcc->push != clip_push) {
469 	clip_vcc = CLIP_VCC(vcc);
620 static void atmarpd_close(struct atm_vcc *vcc)
629 	skb_queue_purge(&sk_atm(vcc)->sk_receive_queue);
635 static int atmarpd_send(struct atm_vcc *vcc, struct sk_buff *skb)
637 	atm_return_tx(vcc, skb);
656 static int atm_init_atmarp(struct atm_vcc *vcc)
658 	if (vcc->push == clip_push)
669 	rcu_assign_pointer(atmarpd, vcc);
670 	set_bit(ATM_VF_META, &vcc->flags);
671 	set_bit(ATM_VF_READY, &vcc->flags);
673 	vcc->dev = &atmarpd_dev;
674 	vcc_insert_socket(sk_atm(vcc));
675 	vcc->push = NULL;
676 	vcc->pop = NULL; /* crash */
677 	vcc->push_oam = NULL; /* crash */
684 	struct atm_vcc *vcc = ATM_SD(sock);
707 		err = atm_init_atmarp(vcc);
716 		err = clip_mkip(vcc, arg);
720 		err = clip_setentry(vcc, (__force __be32)arg);
723 		err = clip_encap(vcc, arg);
776 	       (sk_atm(clip_vcc->vcc)->sk_family == AF_ATMSVC));
804 			   clip_vcc->vcc->dev->number,
805 			   clip_vcc->vcc->vpi, clip_vcc->vcc->vci);
807 		svc_addr(seq, &clip_vcc->vcc->remote);
817 	struct clip_vcc *vcc;
840 	struct clip_vcc *vcc = state->vcc;
842 	vcc = clip_seq_next_vcc(e, vcc);
843 	if (vcc && pos != NULL) {
845 			vcc = clip_seq_next_vcc(e, vcc);
846 			if (!vcc)
851 	state->vcc = vcc;
853 	return vcc;
883 		struct clip_vcc *vcc = state->vcc;
886 		atmarp_info(seq, n, neighbour_priv(n), vcc);