diff options
Diffstat (limited to 'cpukit/libfs/src/nfsclient/src/sock_mbuf.c')
| -rw-r--r-- | cpukit/libfs/src/nfsclient/src/sock_mbuf.c | 285 |
1 files changed, 0 insertions, 285 deletions
diff --git a/cpukit/libfs/src/nfsclient/src/sock_mbuf.c b/cpukit/libfs/src/nfsclient/src/sock_mbuf.c deleted file mode 100644 index fa519f70fa..0000000000 --- a/cpukit/libfs/src/nfsclient/src/sock_mbuf.c +++ /dev/null @@ -1,285 +0,0 @@ -/** - * @file - * - * @ingroup RTEMSFileSystemNFS - * - * @brief Sock Mbuf - */ - -/* - * NOTE: - * This is derived from libnetworking/rtems/rtems_syscall.c - * - * RTEMS/libnetworking LICENSING restrictions may apply - * - * Author (modifications only): - * Copyright: 2002, Stanford University and - * Till Straumann, <strauman@slac.stanford.edu> - * Licensing: 'LICENSE.NET' file in the RTEMS top source directory - * for more information. - * - * The RTEMS TCP/IP stack is a port of the FreeBSD TCP/IP stack. The following - * copyright and licensing information applies to this code. - * - * This code is found under the c/src/libnetworking directory but does not - * constitute the entire contents of that subdirectory. - * - * - * Copyright (c) 1980, 1983, 1988, 1993 - * The Regents of the University of California. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgment: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - - * Portions Copyright (c) 1993 by Digital Equipment Corporation. - - * Permission to use, copy, modify, and distribute this software for any - * purpose with or without fee is hereby granted, provided that the above - * copyright notice and this permission notice appear in all copies, and that - * the name of Digital Equipment Corporation not be used in advertising or - * publicity pertaining to distribution of the document or software without - * specific, written prior permission. - - * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL - * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT - * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL - * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR - * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS - * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS - * SOFTWARE. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#define _KERNEL - -#include <string.h> -#include <stdarg.h> -#include <stdio.h> - -#include <rtems.h> -#include <rtems/libio.h> -#include <rtems/error.h> - -#include <rtems/rtems_bsdnet.h> - -#include <sys/errno.h> -#include <sys/types.h> -#include <sys/param.h> -#include <sys/mbuf.h> -#include <sys/socket.h> -#include <sys/socketvar.h> -#include <sys/protosw.h> -#include <sys/proc.h> -#include <sys/fcntl.h> -#include <sys/filio.h> - -#include <net/if.h> -#include <net/route.h> - -#include "nfsclient-private.h" - -struct socket *rtems_bsdnet_fdToSocket(int fd); - -/* - * Package system call argument into mbuf. - * - * (unfortunately, the original is not public) - */ -static int -sockaddrtombuf (struct mbuf **mp, const struct sockaddr *buf, int buflen) -{ -struct mbuf *m; -struct sockaddr *sa; - - if ((u_int)buflen > MLEN) - return (EINVAL); - - rtems_bsdnet_semaphore_obtain(); - m = m_get(M_WAIT, MT_SONAME); - rtems_bsdnet_semaphore_release(); - - if (m == NULL) - return (ENOBUFS); - m->m_len = buflen; - memcpy (mtod(m, caddr_t), buf, buflen); - *mp = m; - sa = mtod(m, struct sockaddr *); - sa->sa_len = buflen; - - return 0; -} - -static void -dummyproc(caddr_t ext_buf, u_int ext_size) -{ -} - -/* - * send data by simply allocating an MBUF packet - * header and pointing it to our data region. - * - * Optionally, the caller may supply 'reference' - * and 'free' procs. (The latter may call the - * user back once the networking stack has - * released the buffer). - * - * The callbacks are provided with the 'closure' - * pointer and the 'buflen' argument. - */ -ssize_t -sendto_nocpy ( - int s, - const void *buf, size_t buflen, - int flags, - const struct sockaddr *toaddr, int tolen, - void *closure, - void (*freeproc)(caddr_t, u_int), - void (*refproc)(caddr_t, u_int) -) -{ - int error; - struct socket *so; - struct mbuf *to, *m; - int ret = -1; - - rtems_bsdnet_semaphore_obtain (); - if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { - rtems_bsdnet_semaphore_release (); - return -1; - } - - error = sockaddrtombuf (&to, toaddr, tolen); - if (error) { - errno = error; - rtems_bsdnet_semaphore_release (); - return -1; - } - - MGETHDR(m, M_WAIT, MT_DATA); - m->m_pkthdr.len = 0; - m->m_pkthdr.rcvif = (struct ifnet *) 0; - - m->m_flags |= M_EXT; - m->m_ext.ext_buf = closure ? closure : (void*)buf; - m->m_ext.ext_size = buflen; - /* we _must_ supply non-null procs; otherwise, - * the kernel code assumes it's a mbuf cluster - */ - m->m_ext.ext_free = freeproc ? freeproc : dummyproc; - m->m_ext.ext_ref = refproc ? refproc : dummyproc; - m->m_pkthdr.len += buflen; - m->m_len = buflen; - m->m_data = (void*)buf; - - error = sosend (so, to, NULL, m, NULL, flags); - if (error) { - if (/*auio.uio_resid != len &&*/ (error == EINTR || error == EWOULDBLOCK)) - error = 0; - } - if (error) - errno = error; - else - ret = buflen; - if (to) - m_freem(to); - rtems_bsdnet_semaphore_release (); - return (ret); -} - - -/* - * receive data in an 'mbuf chain'. - * The chain must be released once the - * data has been extracted: - * - * rtems_bsdnet_semaphore_obtain(); - * m_freem(chain); - * rtems_bsdnet_semaphore_release(); - */ -ssize_t -recv_mbuf_from(int s, struct mbuf **ppm, long len, struct sockaddr *fromaddr, int *fromlen) -{ - int ret = -1; - int error; - struct uio auio; - struct socket *so; - struct mbuf *from = NULL; - - memset(&auio, 0, sizeof(auio)); - *ppm = 0; - - rtems_bsdnet_semaphore_obtain (); - if ((so = rtems_bsdnet_fdToSocket (s)) == NULL) { - rtems_bsdnet_semaphore_release (); - return -1; - } -/* auio.uio_iov = mp->msg_iov; - auio.uio_iovcnt = mp->msg_iovlen; - auio.uio_segflg = UIO_USERSPACE; - auio.uio_rw = UIO_READ; - auio.uio_offset = 0; -*/ - auio.uio_resid = len; - error = soreceive (so, &from, &auio, (struct mbuf **) ppm, - (struct mbuf **)NULL, - NULL); - if (error) { - if (auio.uio_resid != len && (error == EINTR || error == EWOULDBLOCK)) - error = 0; - } - if (error) { - errno = error; - } - else { - ret = len - auio.uio_resid; - if (fromaddr) { - len = *fromlen; - if ((len <= 0) || (from == NULL)) { - len = 0; - } - else { - if (len > from->m_len) - len = from->m_len; - memcpy (fromaddr, mtod(from, caddr_t), len); - } - *fromlen = len; - } - } - if (from) - m_freem (from); - if (error && *ppm) { - m_freem(*ppm); - *ppm = 0; - } - rtems_bsdnet_semaphore_release (); - return (ret); -} |