diff options
| -rw-r--r-- | fs/ncpfs/sock.c | 69 |
1 files changed, 27 insertions, 42 deletions
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c index 97cfccefccc5..a13c0b54f078 100644 --- a/fs/ncpfs/sock.c +++ b/fs/ncpfs/sock.c @@ -63,9 +63,7 @@ struct ncp_request_reply { size_t datalen; int result; enum { RQ_DONE, RQ_INPROGRESS, RQ_QUEUED, RQ_IDLE, RQ_ABANDONED } status; - struct kvec* tx_ciov; - size_t tx_totallen; - size_t tx_iovlen; + struct iov_iter from; struct kvec tx_iov[3]; u_int16_t tx_type; u_int32_t sign[6]; @@ -205,22 +203,22 @@ static inline void __ncptcp_abort(struct ncp_server *server) static int ncpdgram_send(struct socket *sock, struct ncp_request_reply *req) { - return do_send(sock, req->tx_ciov, req->tx_iovlen, - req->tx_totallen, MSG_DONTWAIT); + struct msghdr msg = { .msg_iter = req->from, .msg_flags = MSG_DONTWAIT }; + return sock_sendmsg(sock, &msg); } static void __ncptcp_try_send(struct ncp_server *server) { struct ncp_request_reply *rq; - struct kvec *iov; + struct msghdr msg = { .msg_flags = MSG_NOSIGNAL | MSG_DONTWAIT }; int result; rq = server->tx.creq; if (!rq) return; - result = do_send(server->ncp_sock, rq->tx_ciov, rq->tx_iovlen, - rq->tx_totallen, MSG_NOSIGNAL | MSG_DONTWAIT); + msg.msg_iter = rq->from; + result = sock_sendmsg(server->ncp_sock, &msg); if (result == -EAGAIN) return; @@ -230,21 +228,12 @@ static void __ncptcp_try_send(struct ncp_server *server) __ncp_abort_request(server, rq, result); return; } - if (result >= rq->tx_totallen) { + if (!msg_data_left(&msg)) { server->rcv.creq = rq; server->tx.creq = NULL; return; } - rq->tx_totallen -= result; - iov = rq->tx_ciov; - while (iov->iov_len <= result) { - result -= iov->iov_len; - iov++; - rq->tx_iovlen--; - } - iov->iov_base += result; - iov->iov_len -= result; - rq->tx_ciov = iov; + rq->from = msg.msg_iter; } static inline void ncp_init_header(struct ncp_server *server, struct ncp_request_reply *req, struct ncp_request_header *h) @@ -257,22 +246,21 @@ static inline void ncp_init_header(struct ncp_server *server, struct ncp_request static void ncpdgram_start_request(struct ncp_server *server, struct ncp_request_reply *req) { - size_t signlen; - struct ncp_request_header* h; + size_t signlen, len = req->tx_iov[1].iov_len; + struct ncp_request_header *h = req->tx_iov[1].iov_base; - req->tx_ciov = req->tx_iov + 1; - - h = req->tx_iov[1].iov_base; ncp_init_header(server, req, h); - signlen = sign_packet(server, req->tx_iov[1].iov_base + sizeof(struct ncp_request_header) - 1, - req->tx_iov[1].iov_len - sizeof(struct ncp_request_header) + 1, - cpu_to_le32(req->tx_totallen), req->sign); + signlen = sign_packet(server, + req->tx_iov[1].iov_base + sizeof(struct ncp_request_header) - 1, + len - sizeof(struct ncp_request_header) + 1, + cpu_to_le32(len), req->sign); if (signlen) { - req->tx_ciov[1].iov_base = req->sign; - req->tx_ciov[1].iov_len = signlen; - req->tx_iovlen += 1; - req->tx_totallen += signlen; + /* NCP over UDP appends signature */ + req->tx_iov[2].iov_base = req->sign; + req->tx_iov[2].iov_len = signlen; } + iov_iter_kvec(&req->from, WRITE | ITER_KVEC, + req->tx_iov + 1, signlen ? 2 : 1, len + signlen); server->rcv.creq = req; server->timeout_last = server->m.time_out; server->timeout_retries = server->m.retry_count; @@ -286,24 +274,23 @@ static void ncpdgram_start_request(struct ncp_server *server, struct ncp_request static void ncptcp_start_request(struct ncp_server *server, struct ncp_request_reply *req) { - size_t signlen; - struct ncp_request_header* h; + size_t signlen, len = req->tx_iov[1].iov_len; + struct ncp_request_header *h = req->tx_iov[1].iov_base; - req->tx_ciov = req->tx_iov; - h = req->tx_iov[1].iov_base; ncp_init_header(server, req, h); signlen = sign_packet(server, req->tx_iov[1].iov_base + sizeof(struct ncp_request_header) - 1, - req->tx_iov[1].iov_len - sizeof(struct ncp_request_header) + 1, - cpu_to_be32(req->tx_totallen + 24), req->sign + 4) + 16; + len - sizeof(struct ncp_request_header) + 1, + cpu_to_be32(len + 24), req->sign + 4) + 16; req->sign[0] = htonl(NCP_TCP_XMIT_MAGIC); - req->sign[1] = htonl(req->tx_totallen + signlen); + req->sign[1] = htonl(len + signlen); req->sign[2] = htonl(NCP_TCP_XMIT_VERSION); req->sign[3] = htonl(req->datalen + 8); + /* NCP over TCP prepends signature */ req->tx_iov[0].iov_base = req->sign; req->tx_iov[0].iov_len = signlen; - req->tx_iovlen += 1; - req->tx_totallen += signlen; + iov_iter_kvec(&req->from, WRITE | ITER_KVEC, + req->tx_iov, 2, len + signlen); server->tx.creq = req; __ncptcp_try_send(server); @@ -705,8 +692,6 @@ static int do_ncp_rpc_call(struct ncp_server *server, int size, req->datalen = max_reply_size; req->tx_iov[1].iov_base = server->packet; req->tx_iov[1].iov_len = size; - req->tx_iovlen = 1; - req->tx_totallen = size; req->tx_type = *(u_int16_t*)server->packet; result = ncp_add_request(server, req); |