38 static int ax25_rx_fragment(ax25_cb *ax25, struct sk_buff *skb)  in ax25_rx_fragment()  argument
42 	if (ax25->fragno != 0) {  in ax25_rx_fragment()
44 			if ((ax25->fragno - 1) == (*skb->data & AX25_SEG_REM)) {  in ax25_rx_fragment()
46 				ax25->fragno = *skb->data & AX25_SEG_REM;  in ax25_rx_fragment()
48 				ax25->fraglen += skb->len;  in ax25_rx_fragment()
49 				skb_queue_tail(&ax25->frag_queue, skb);  in ax25_rx_fragment()
52 				if (ax25->fragno == 0) {  in ax25_rx_fragment()
54 							 ax25->fraglen,  in ax25_rx_fragment()
57 						skb_queue_purge(&ax25->frag_queue);  in ax25_rx_fragment()
63 					skbn->dev   = ax25->ax25_dev->dev;  in ax25_rx_fragment()
68 					while ((skbo = skb_dequeue(&ax25->frag_queue)) != NULL) {  in ax25_rx_fragment()
75 					ax25->fraglen = 0;  in ax25_rx_fragment()
77 					if (ax25_rx_iframe(ax25, skbn) == 0)  in ax25_rx_fragment()
87 			skb_queue_purge(&ax25->frag_queue);  in ax25_rx_fragment()
88 			ax25->fragno = *skb->data & AX25_SEG_REM;  in ax25_rx_fragment()
90 			ax25->fraglen = skb->len;  in ax25_rx_fragment()
91 			skb_queue_tail(&ax25->frag_queue, skb);  in ax25_rx_fragment()
103 int ax25_rx_iframe(ax25_cb *ax25, struct sk_buff *skb)  in ax25_rx_iframe()  argument
111 	ax25_start_idletimer(ax25);  in ax25_rx_iframe()
129 		skb->dev      = ax25->ax25_dev->dev;  in ax25_rx_iframe()
137 		return ax25_rx_fragment(ax25, skb);  in ax25_rx_iframe()
142 		return (*func)(skb, ax25);  in ax25_rx_iframe()
145 	if (ax25->sk != NULL && ax25->ax25_dev->values[AX25_VALUES_CONMODE] == 2) {  in ax25_rx_iframe()
146 		if ((!ax25->pidincl && ax25->sk->sk_protocol == pid) ||  in ax25_rx_iframe()
147 		    ax25->pidincl) {  in ax25_rx_iframe()
148 			if (sock_queue_rcv_skb(ax25->sk, skb) == 0)  in ax25_rx_iframe()
151 				ax25->condition |= AX25_COND_OWN_RX_BUSY;  in ax25_rx_iframe()
161 static int ax25_process_rx_frame(ax25_cb *ax25, struct sk_buff *skb, int type, int dama)  in ax25_process_rx_frame()  argument
165 	if (ax25->state == AX25_STATE_0)  in ax25_process_rx_frame()
168 	switch (ax25->ax25_dev->values[AX25_VALUES_PROTOCOL]) {  in ax25_process_rx_frame()
171 		queued = ax25_std_frame_in(ax25, skb, type);  in ax25_process_rx_frame()
176 		if (dama || ax25->ax25_dev->dama.slave)  in ax25_process_rx_frame()
177 			queued = ax25_ds_frame_in(ax25, skb, type);  in ax25_process_rx_frame()
179 			queued = ax25_std_frame_in(ax25, skb, type);  in ax25_process_rx_frame()
194 	ax25_cb *ax25;  in ax25_rcv()  local
307 	if ((ax25 = ax25_find_cb(&dest, &src, &reverse_dp, dev)) != NULL) {  in ax25_rcv()
314 		if (ax25_process_rx_frame(ax25, skb, type, dama) == 0)  in ax25_rcv()
317 		ax25_cb_put(ax25);  in ax25_rcv()
357 		ax25 = ax25_sk(make);  in ax25_rcv()
369 		if ((ax25 = ax25_create_cb()) == NULL) {  in ax25_rcv()
374 		ax25_fillin_cb(ax25, ax25_dev);  in ax25_rcv()
377 	ax25->source_addr = dest;  in ax25_rcv()
378 	ax25->dest_addr   = src;  in ax25_rcv()
383 	if (dp.ndigi && !ax25->digipeat &&  in ax25_rcv()
384 	    (ax25->digipeat = kmalloc(sizeof(ax25_digi), GFP_ATOMIC)) == NULL) {  in ax25_rcv()
386 		ax25_destroy_socket(ax25);  in ax25_rcv()
393 		kfree(ax25->digipeat);  in ax25_rcv()
394 		ax25->digipeat = NULL;  in ax25_rcv()
397 		memcpy(ax25->digipeat, &reverse_dp, sizeof(ax25_digi));  in ax25_rcv()
401 		ax25->modulus = AX25_EMODULUS;  in ax25_rcv()
402 		ax25->window  = ax25_dev->values[AX25_VALUES_EWINDOW];  in ax25_rcv()
404 		ax25->modulus = AX25_MODULUS;  in ax25_rcv()
405 		ax25->window  = ax25_dev->values[AX25_VALUES_WINDOW];  in ax25_rcv()
408 	ax25_send_control(ax25, AX25_UA, AX25_POLLON, AX25_RESPONSE);  in ax25_rcv()
411 	if (dama && ax25->ax25_dev->values[AX25_VALUES_PROTOCOL] == AX25_PROTO_DAMA_SLAVE)  in ax25_rcv()
412 		ax25_dama_on(ax25);  in ax25_rcv()
415 	ax25->state = AX25_STATE_3;  in ax25_rcv()
417 	ax25_cb_add(ax25);  in ax25_rcv()
419 	ax25_start_heartbeat(ax25);  in ax25_rcv()
420 	ax25_start_t3timer(ax25);  in ax25_rcv()
421 	ax25_start_idletimer(ax25);  in ax25_rcv()