150 	struct rxrpc_txbuf *txb;  in rxkad_alloc_txbuf()  local
176 	txb = rxrpc_alloc_data_txbuf(call, alloc, RXKAD_ALIGN, gfp);  in rxkad_alloc_txbuf()
177 	if (!txb)  in rxkad_alloc_txbuf()
180 	txb->offset += shdr;  in rxkad_alloc_txbuf()
181 	txb->space = part;  in rxkad_alloc_txbuf()
182 	return txb;  in rxkad_alloc_txbuf()
257 				    struct rxrpc_txbuf *txb,  in rxkad_secure_packet_auth()  argument
260 	struct rxkad_level1_hdr *hdr = txb->data;  in rxkad_secure_packet_auth()
268 	check = txb->seq ^ call->call_id;  in rxkad_secure_packet_auth()
269 	hdr->data_size = htonl((u32)check << 16 | txb->len);  in rxkad_secure_packet_auth()
271 	txb->pkt_len = sizeof(struct rxkad_level1_hdr) + txb->len;  in rxkad_secure_packet_auth()
272 	pad = txb->pkt_len;  in rxkad_secure_packet_auth()
276 		memset(txb->data + txb->offset, 0, pad);  in rxkad_secure_packet_auth()
277 		txb->pkt_len += pad;  in rxkad_secure_packet_auth()
298 				       struct rxrpc_txbuf *txb,  in rxkad_secure_packet_encrypt()  argument
302 	struct rxkad_level2_hdr *rxkhdr = txb->data;  in rxkad_secure_packet_encrypt()
311 	check = txb->seq ^ call->call_id;  in rxkad_secure_packet_encrypt()
313 	rxkhdr->data_size = htonl(txb->len | (u32)check << 16);  in rxkad_secure_packet_encrypt()
316 	content = sizeof(struct rxkad_level2_hdr) + txb->len;  in rxkad_secure_packet_encrypt()
317 	txb->pkt_len = round_up(content, RXKAD_ALIGN);  in rxkad_secure_packet_encrypt()
318 	pad = txb->pkt_len - content;  in rxkad_secure_packet_encrypt()
320 		memset(txb->data + txb->offset, 0, pad);  in rxkad_secure_packet_encrypt()
326 	sg_init_one(&sg, rxkhdr, txb->pkt_len);  in rxkad_secure_packet_encrypt()
329 	skcipher_request_set_crypt(req, &sg, &sg, txb->pkt_len, iv.x);  in rxkad_secure_packet_encrypt()
338 static int rxkad_secure_packet(struct rxrpc_call *call, struct rxrpc_txbuf *txb)  in rxkad_secure_packet()  argument
351 	       txb->seq, txb->len);  in rxkad_secure_packet()
369 	x |= txb->seq & 0x3fffffff;  in rxkad_secure_packet()
384 	txb->cksum = htons(y);  in rxkad_secure_packet()
388 		txb->pkt_len = txb->len;  in rxkad_secure_packet()
392 		ret = rxkad_secure_packet_auth(call, txb, req);  in rxkad_secure_packet()
393 		if (txb->alloc_size == RXRPC_JUMBO_DATALEN)  in rxkad_secure_packet()
394 			txb->jumboable = true;  in rxkad_secure_packet()
397 		ret = rxkad_secure_packet_encrypt(call, txb, req);  in rxkad_secure_packet()
398 		if (txb->alloc_size == RXRPC_JUMBO_DATALEN)  in rxkad_secure_packet()
399 			txb->jumboable = true;  in rxkad_secure_packet()
407 	if (txb->pkt_len < txb->alloc_size) {  in rxkad_secure_packet()
408 		size_t gap = txb->alloc_size - txb->pkt_len;  in rxkad_secure_packet()
409 		void *p = txb->data;  in rxkad_secure_packet()
411 		memset(p + txb->pkt_len, 0, gap);  in rxkad_secure_packet()