37 static int x25_queue_rx_frame(struct sock *sk, struct sk_buff *skb, int more)  in x25_queue_rx_frame()  argument
39 	struct sk_buff *skbo, *skbn = skb;  in x25_queue_rx_frame()
43 		x25->fraglen += skb->len;  in x25_queue_rx_frame()
44 		skb_queue_tail(&x25->fragment_queue, skb);  in x25_queue_rx_frame()
45 		skb_set_owner_r(skb, sk);  in x25_queue_rx_frame()
50 		int len = x25->fraglen + skb->len;  in x25_queue_rx_frame()
53 			kfree_skb(skb);  in x25_queue_rx_frame()
57 		skb_queue_tail(&x25->fragment_queue, skb);  in x25_queue_rx_frame()
92 static int x25_state1_machine(struct sock *sk, struct sk_buff *skb, int frametype)  in x25_state1_machine()  argument
112 		if (!pskb_may_pull(skb, X25_STD_MIN_LEN))  in x25_state1_machine()
114 		skb_pull(skb, X25_STD_MIN_LEN);  in x25_state1_machine()
116 		len = x25_parse_address_block(skb, &source_addr,  in x25_state1_machine()
119 			skb_pull(skb, len);  in x25_state1_machine()
123 		len = x25_parse_facilities(skb, &x25->facilities,  in x25_state1_machine()
127 			skb_pull(skb, len);  in x25_state1_machine()
133 		if (skb->len > 0) {  in x25_state1_machine()
134 			if (skb->len > X25_MAX_CUD_LEN)  in x25_state1_machine()
137 			skb_copy_bits(skb, 0, x25->calluserdata.cuddata,  in x25_state1_machine()
138 				skb->len);  in x25_state1_machine()
139 			x25->calluserdata.cudlength = skb->len;  in x25_state1_machine()
146 		if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))  in x25_state1_machine()
150 		x25_disconnect(sk, ECONNREFUSED, skb->data[3], skb->data[4]);  in x25_state1_machine()
171 static int x25_state2_machine(struct sock *sk, struct sk_buff *skb, int frametype)  in x25_state2_machine()  argument
176 			if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))  in x25_state2_machine()
180 			x25_disconnect(sk, 0, skb->data[3], skb->data[4]);  in x25_state2_machine()
204 static int x25_state3_machine(struct sock *sk, struct sk_buff *skb, int frametype, int ns, int nr, …  in x25_state3_machine()  argument
226 			if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))  in x25_state3_machine()
230 			x25_disconnect(sk, 0, skb->data[3], skb->data[4]);  in x25_state3_machine()
271 				if (x25_queue_rx_frame(sk, skb, m) == 0) {  in x25_state3_machine()
311 				queued = !sock_queue_rcv_skb(sk, skb);  in x25_state3_machine()
313 				skb_set_owner_r(skb, sk);  in x25_state3_machine()
314 				skb_queue_tail(&x25->interrupt_in_queue, skb);  in x25_state3_machine()
340 static int x25_state4_machine(struct sock *sk, struct sk_buff *skb, int frametype)  in x25_state4_machine()  argument
360 			if (!pskb_may_pull(skb, X25_STD_MIN_LEN + 2))  in x25_state4_machine()
364 			x25_disconnect(sk, 0, skb->data[3], skb->data[4]);  in x25_state4_machine()
381 int x25_process_rx_frame(struct sock *sk, struct sk_buff *skb)  in x25_process_rx_frame()  argument
389 	frametype = x25_decode(sk, skb, &ns, &nr, &q, &d, &m);  in x25_process_rx_frame()
393 		queued = x25_state1_machine(sk, skb, frametype);  in x25_process_rx_frame()
396 		queued = x25_state2_machine(sk, skb, frametype);  in x25_process_rx_frame()
399 		queued = x25_state3_machine(sk, skb, frametype, ns, nr, q, d, m);  in x25_process_rx_frame()
402 		queued = x25_state4_machine(sk, skb, frametype);  in x25_process_rx_frame()
411 int x25_backlog_rcv(struct sock *sk, struct sk_buff *skb)  in x25_backlog_rcv()  argument
413 	int queued = x25_process_rx_frame(sk, skb);  in x25_backlog_rcv()
416 		kfree_skb(skb);  in x25_backlog_rcv()