+++ /dev/null
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- *
- * libcfs/libcfs/darwin/darwin-tcpip.c
- *
- * Darwin porting library
- * Make things easy to port
- *
- * Author: Phil Schwan <phil@clusterfs.com>
- */
-
-#include <mach/mach_types.h>
-#include <sys/file.h>
-#include <sys/mount.h>
-#include <string.h>
-#include <netinet/in.h>
-#include <netinet/tcp.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/sockio.h>
-#include <sys/protosw.h>
-#include <net/if.h>
-
-#define DEBUG_SUBSYSTEM S_LNET
-
-#include <libcfs/libcfs.h>
-
-static __inline__ struct sockaddr_in
-blank_sin()
-{
- struct sockaddr_in blank = { sizeof(struct sockaddr_in), AF_INET };
- return (blank);
-}
-
-void
-libcfs_ipif_free_enumeration (char **names, int n)
-{
- int i;
-
- LASSERT (n > 0);
-
- for (i = 0; i < n && names[i] != NULL; i++)
- LIBCFS_FREE(names[i], IFNAMSIZ);
-
- LIBCFS_FREE(names, n * sizeof(*names));
-}
-
-#ifdef __DARWIN8__
-/*
- * Darwin 8.x
- *
- * No hack kernel structre, all using KPI.
- */
-
-int
-libcfs_ipif_query (char *name, int *up, __u32 *ip, __u32 *mask)
-{
- struct ifreq ifr;
- socket_t so;
- __u32 val;
- int nob;
- int rc;
-
- rc = -sock_socket(PF_INET, SOCK_STREAM, 0,
- NULL, NULL, &so);
- if (rc != 0) {
- CERROR ("Can't create socket: %d\n", rc);
- return rc;
- }
-
- nob = strnlen(name, IFNAMSIZ);
- if (nob == IFNAMSIZ) {
- CERROR("Interface name %s too long\n", name);
- rc = -EINVAL;
- goto out;
- }
-
- CLASSERT (sizeof(ifr.ifr_name) >= IFNAMSIZ);
- bzero(&ifr, sizeof(ifr));
- strcpy(ifr.ifr_name, name);
- rc = -sock_ioctl (so, SIOCGIFFLAGS, &ifr);
-
- if (rc != 0) {
- CERROR("Can't get flags for interface %s\n", name);
- goto out;
- }
-
- if ((ifr.ifr_flags & IFF_UP) == 0) {
- CDEBUG(D_NET, "Interface %s down\n", name);
- *up = 0;
- *ip = *mask = 0;
- goto out;
- }
-
- *up = 1;
-
- bzero(&ifr, sizeof(ifr));
- strcpy(ifr.ifr_name, name);
- *((struct sockaddr_in *)&ifr.ifr_addr) = blank_sin();
- rc = -sock_ioctl(so, SIOCGIFADDR, &ifr);
-
- if (rc != 0) {
- CERROR("Can't get IP address for interface %s\n", name);
- goto out;
- }
-
- val = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
- *ip = ntohl(val);
-
- bzero(&ifr, sizeof(ifr));
- strcpy(ifr.ifr_name, name);
- *((struct sockaddr_in *)&ifr.ifr_addr) = blank_sin();
- rc = -sock_ioctl(so, SIOCGIFNETMASK, &ifr);
-
- if (rc != 0) {
- CERROR("Can't get netmask for interface %s\n", name);
- goto out;
- }
-
- val = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
- *mask = ntohl(val);
-out:
- sock_close(so);
- return rc;
-}
-
-int
-libcfs_ipif_enumerate (char ***namesp)
-{
- /* Allocate and fill in 'names', returning # interfaces/error */
- char **names;
- int toobig;
- int nalloc;
- int nfound;
- socket_t so;
- struct ifreq *ifr;
- struct ifconf ifc;
- int rc;
- int nob;
- int i;
-
- rc = -sock_socket(PF_INET, SOCK_STREAM, 0,
- NULL, NULL, &so);
- if (rc != 0) {
- CERROR ("Can't create socket: %d\n", rc);
- return (rc);
- }
-
- nalloc = 16; /* first guess at max interfaces */
- toobig = 0;
- for (;;) {
- if (nalloc * sizeof(*ifr) > PAGE_CACHE_SIZE) {
- toobig = 1;
- nalloc = PAGE_CACHE_SIZE/sizeof(*ifr);
- CWARN("Too many interfaces: only enumerating first %d\n",
- nalloc);
- }
-
- LIBCFS_ALLOC(ifr, nalloc * sizeof(*ifr));
- if (ifr == NULL) {
- CERROR ("ENOMEM enumerating up to %d interfaces\n", nalloc);
- rc = -ENOMEM;
- goto out0;
- }
-
- ifc.ifc_buf = (char *)ifr;
- ifc.ifc_len = nalloc * sizeof(*ifr);
-
-#if 1
- /*
- * XXX Liang:
- * sock_ioctl(..., SIOCGIFCONF, ...) is not supposed to be used in
- * kernel space because it always try to copy result to userspace.
- * So we can't get interfaces name by sock_ioctl(...,SIOCGIFCONF,...).
- * I've created a bug for Apple, let's wait...
- */
- nfound = 0;
- for (i = 0; i < 16; i++) {
- struct ifreq en;
- bzero(&en, sizeof(en));
- snprintf(en.ifr_name, IFNAMSIZ, "en%d", i);
- rc = -sock_ioctl (so, SIOCGIFFLAGS, &en);
- if (rc != 0)
- continue;
- strcpy(ifr[nfound++].ifr_name, en.ifr_name);
- }
-
-#else /* NOT in using now */
- rc = -sock_ioctl(so, SIOCGIFCONF, (caddr_t)&ifc);
-
- if (rc < 0) {
- CERROR ("Error %d enumerating interfaces\n", rc);
- goto out1;
- }
-
- nfound = ifc.ifc_len/sizeof(*ifr);
- LASSERT (nfound <= nalloc);
-#endif
-
- if (nfound < nalloc || toobig)
- break;
-
- LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
- nalloc *= 2;
- }
- if (nfound == 0)
- goto out1;
-
- LIBCFS_ALLOC(names, nfound * sizeof(*names));
- if (names == NULL) {
- rc = -ENOMEM;
- goto out1;
- }
- /* NULL out all names[i] */
- memset (names, 0, nfound * sizeof(*names));
-
- for (i = 0; i < nfound; i++) {
-
- nob = strnlen (ifr[i].ifr_name, IFNAMSIZ);
- if (nob == IFNAMSIZ) {
- /* no space for terminating NULL */
- CERROR("interface name %.*s too long (%d max)\n",
- nob, ifr[i].ifr_name, IFNAMSIZ);
- rc = -ENAMETOOLONG;
- goto out2;
- }
-
- LIBCFS_ALLOC(names[i], IFNAMSIZ);
- if (names[i] == NULL) {
- rc = -ENOMEM;
- goto out2;
- }
-
- memcpy(names[i], ifr[i].ifr_name, nob);
- names[i][nob] = 0;
- }
-
- *namesp = names;
- rc = nfound;
-
-out2:
- if (rc < 0)
- libcfs_ipif_free_enumeration(names, nfound);
-out1:
- LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
-out0:
- sock_close(so);
- return rc;
-
-}
-
-/*
- * Public entry of socket upcall.
- *
- * so_upcall can only be installed while create/accept of socket in
- * Darwin 8.0, so we setup libcfs_sock_upcall() as upcall for all
- * sockets in creat/accept, it will call upcall provided by user
- * which can be setup after create/accept of socket.
- */
-static void libcfs_sock_upcall(socket_t so, void* arg, int waitf)
-{
- cfs_socket_t *sock;
-
- sock = (cfs_socket_t *)arg;
- LASSERT(sock->s_magic == CFS_SOCK_MAGIC);
-
- if ((sock->s_flags & CFS_SOCK_UPCALL) != 0 && sock->s_upcall != NULL)
- sock->s_upcall(so, sock->s_upcallarg, waitf);
- return;
-}
-
-void libcfs_sock_set_cb(cfs_socket_t *sock, so_upcall callback, void *arg)
-{
- sock->s_upcall = callback;
- sock->s_upcallarg = arg;
- sock->s_flags |= CFS_SOCK_UPCALL;
- return;
-}
-
-void libcfs_sock_reset_cb(cfs_socket_t *sock)
-{
- sock->s_flags &= ~CFS_SOCK_UPCALL;
- sock->s_upcall = NULL;
- sock->s_upcallarg = NULL;
- return;
-}
-
-static int
-libcfs_sock_create (cfs_socket_t **sockp, int *fatal,
- __u32 local_ip, int local_port)
-{
- struct sockaddr_in locaddr;
- cfs_socket_t *sock;
- int option;
- int optlen;
- int rc;
-
- /* All errors are fatal except bind failure if the port is in use */
- *fatal = 1;
-
- sock = _MALLOC(sizeof(cfs_socket_t), M_TEMP, M_WAITOK|M_ZERO);
- if (!sock) {
- CERROR("Can't allocate cfs_socket.\n");
- return -ENOMEM;
- }
- *sockp = sock;
- sock->s_magic = CFS_SOCK_MAGIC;
-
- rc = -sock_socket(PF_INET, SOCK_STREAM, 0,
- libcfs_sock_upcall, sock, &C2B_SOCK(sock));
- if (rc != 0)
- goto out;
- option = 1;
- optlen = sizeof(option);
- rc = -sock_setsockopt(C2B_SOCK(sock), SOL_SOCKET,
- SO_REUSEADDR, &option, optlen);
- if (rc != 0)
- goto out;
-
- /* can't specify a local port without a local IP */
- LASSERT (local_ip == 0 || local_port != 0);
-
- if (local_ip != 0 || local_port != 0) {
- bzero (&locaddr, sizeof (locaddr));
- locaddr.sin_len = sizeof(struct sockaddr_in);
- locaddr.sin_family = AF_INET;
- locaddr.sin_port = htons (local_port);
- locaddr.sin_addr.s_addr = (local_ip != 0) ? htonl(local_ip) : INADDR_ANY;
- rc = -sock_bind(C2B_SOCK(sock), (struct sockaddr *)&locaddr);
- if (rc == -EADDRINUSE) {
- CDEBUG(D_NET, "Port %d already in use\n", local_port);
- *fatal = 0;
- goto out;
- }
- if (rc != 0) {
- CERROR("Error trying to bind to port %d: %d\n",
- local_port, rc);
- goto out;
- }
- }
- return 0;
-out:
- if (C2B_SOCK(sock) != NULL)
- sock_close(C2B_SOCK(sock));
- FREE(sock, M_TEMP);
- return rc;
-}
-
-int
-libcfs_sock_listen (cfs_socket_t **sockp,
- __u32 local_ip, int local_port, int backlog)
-{
- cfs_socket_t *sock;
- int fatal;
- int rc;
-
- rc = libcfs_sock_create(&sock, &fatal, local_ip, local_port);
- if (rc != 0) {
- if (!fatal)
- CERROR("Can't create socket: port %d already in use\n",
- local_port);
- return rc;
-
- }
- rc = -sock_listen(C2B_SOCK(sock), backlog);
- if (rc == 0) {
- *sockp = sock;
- return 0;
- }
-
- if (C2B_SOCK(sock) != NULL)
- sock_close(C2B_SOCK(sock));
- FREE(sock, M_TEMP);
- return rc;
-}
-
-int
-libcfs_sock_accept (cfs_socket_t **newsockp, cfs_socket_t *sock)
-{
- cfs_socket_t *newsock;
- int rc;
-
- newsock = _MALLOC(sizeof(cfs_socket_t), M_TEMP, M_WAITOK|M_ZERO);
- if (!newsock) {
- CERROR("Can't allocate cfs_socket.\n");
- return -ENOMEM;
- }
- newsock->s_magic = CFS_SOCK_MAGIC;
- /*
- * thread will sleep in sock_accept by calling of msleep(),
- * it can be interrupted because msleep() use PCATCH as argument.
- */
- rc = -sock_accept(C2B_SOCK(sock), NULL, 0, 0,
- libcfs_sock_upcall, newsock, &C2B_SOCK(newsock));
- if (rc) {
- if (C2B_SOCK(newsock) != NULL)
- sock_close(C2B_SOCK(newsock));
- FREE(newsock, M_TEMP);
- if ((sock->s_flags & CFS_SOCK_DOWN) != 0)
- /* shutdown by libcfs_sock_abort_accept(), fake
- * error number for lnet_acceptor() */
- rc = -EAGAIN;
- return rc;
- }
- *newsockp = newsock;
- return 0;
-}
-
-void
-libcfs_sock_abort_accept (cfs_socket_t *sock)
-{
- /*
- * XXX Liang:
- *
- * we want to wakeup thread blocked by sock_accept, but we don't
- * know the address where thread is sleeping on, so we cannot
- * wakeup it directly.
- * The thread slept in sock_accept will be waken up while:
- * 1. interrupt by signal
- * 2. new connection is coming (sonewconn)
- * 3. disconnecting of the socket (soisconnected)
- *
- * Cause we can't send signal to a thread directly(no KPI), so the
- * only thing can be done here is disconnect the socket (by
- * sock_shutdown() or sth else? ).
- *
- * Shutdown request of socket with SHUT_WR or SHUT_RDWR will
- * be issured to the protocol.
- * sock_shutdown()->tcp_usr_shutdown()->tcp_usrclosed()->
- * tcp_close()->soisdisconnected(), it will wakeup thread by
- * wakeup((caddr_t)&so->so_timeo);
- */
- sock->s_flags |= CFS_SOCK_DOWN;
- sock_shutdown(C2B_SOCK(sock), SHUT_RDWR);
-}
-
-int
-libcfs_sock_read (cfs_socket_t *sock, void *buffer, int nob, int timeout)
-{
- size_t rcvlen;
- int rc;
- cfs_duration_t to = cfs_time_seconds(timeout);
- cfs_time_t then;
- struct timeval tv;
-
- LASSERT(nob > 0);
-
- for (;;) {
- struct iovec iov = {
- .iov_base = buffer,
- .iov_len = nob
- };
- struct msghdr msg = {
- .msg_name = NULL,
- .msg_namelen = 0,
- .msg_iov = &iov,
- .msg_iovlen = 1,
- .msg_control = NULL,
- .msg_controllen = 0,
- .msg_flags = 0,
- };
- cfs_duration_usec(to, &tv);
- rc = -sock_setsockopt(C2B_SOCK(sock), SOL_SOCKET, SO_RCVTIMEO,
- &tv, sizeof(tv));
- if (rc != 0) {
- CERROR("Can't set socket recv timeout "
- "%ld.%06d: %d\n",
- (long)tv.tv_sec, (int)tv.tv_usec, rc);
- return rc;
- }
-
- then = cfs_time_current();
- rc = -sock_receive(C2B_SOCK(sock), &msg, 0, &rcvlen);
- to -= cfs_time_current() - then;
-
- if (rc != 0 && rc != -EWOULDBLOCK)
- return rc;
- if (rcvlen == nob)
- return 0;
-
- if (to <= 0)
- return -EAGAIN;
-
- buffer = ((char *)buffer) + rcvlen;
- nob -= rcvlen;
- }
- return 0;
-}
-
-int
-libcfs_sock_write (cfs_socket_t *sock, void *buffer, int nob, int timeout)
-{
- size_t sndlen;
- int rc;
- cfs_duration_t to = cfs_time_seconds(timeout);
- cfs_time_t then;
- struct timeval tv;
-
- LASSERT(nob > 0);
-
- for (;;) {
- struct iovec iov = {
- .iov_base = buffer,
- .iov_len = nob
- };
- struct msghdr msg = {
- .msg_name = NULL,
- .msg_namelen = 0,
- .msg_iov = &iov,
- .msg_iovlen = 1,
- .msg_control = NULL,
- .msg_controllen = 0,
- .msg_flags = (timeout == 0) ? MSG_DONTWAIT : 0,
- };
-
- if (timeout != 0) {
- cfs_duration_usec(to, &tv);
- rc = -sock_setsockopt(C2B_SOCK(sock), SOL_SOCKET, SO_SNDTIMEO,
- &tv, sizeof(tv));
- if (rc != 0) {
- CERROR("Can't set socket send timeout "
- "%ld.%06d: %d\n",
- (long)tv.tv_sec, (int)tv.tv_usec, rc);
- return rc;
- }
- }
-
- then = cfs_time_current();
- rc = -sock_send(C2B_SOCK(sock), &msg,
- ((timeout == 0) ? MSG_DONTWAIT : 0), &sndlen);
- to -= cfs_time_current() - then;
-
- if (rc != 0 && rc != -EWOULDBLOCK)
- return rc;
- if (sndlen == nob)
- return 0;
-
- if (to <= 0)
- return -EAGAIN;
- buffer = ((char *)buffer) + sndlen;
- nob -= sndlen;
- }
- return 0;
-
-}
-
-int
-libcfs_sock_getaddr (cfs_socket_t *sock, int remote, __u32 *ip, int *port)
-{
- struct sockaddr_in sin;
- int rc;
-
- if (remote != 0)
- /* Get remote address */
- rc = -sock_getpeername(C2B_SOCK(sock), (struct sockaddr *)&sin, sizeof(sin));
- else
- /* Get local address */
- rc = -sock_getsockname(C2B_SOCK(sock), (struct sockaddr *)&sin, sizeof(sin));
- if (rc != 0) {
- CERROR ("Error %d getting sock %s IP/port\n",
- rc, remote ? "peer" : "local");
- return rc;
- }
-
- if (ip != NULL)
- *ip = ntohl (sin.sin_addr.s_addr);
-
- if (port != NULL)
- *port = ntohs (sin.sin_port);
- return 0;
-}
-
-int
-libcfs_sock_setbuf (cfs_socket_t *sock, int txbufsize, int rxbufsize)
-{
- int option;
- int rc;
-
- if (txbufsize != 0) {
- option = txbufsize;
- rc = -sock_setsockopt(C2B_SOCK(sock), SOL_SOCKET, SO_SNDBUF,
- (char *)&option, sizeof (option));
- if (rc != 0) {
- CERROR ("Can't set send buffer %d: %d\n",
- option, rc);
- return (rc);
- }
- }
-
- if (rxbufsize != 0) {
- option = rxbufsize;
- rc = -sock_setsockopt (C2B_SOCK(sock), SOL_SOCKET, SO_RCVBUF,
- (char *)&option, sizeof (option));
- if (rc != 0) {
- CERROR ("Can't set receive buffer %d: %d\n",
- option, rc);
- return (rc);
- }
- }
- return 0;
-}
-
-int
-libcfs_sock_getbuf (cfs_socket_t *sock, int *txbufsize, int *rxbufsize)
-{
- int option;
- int optlen;
- int rc;
-
- if (txbufsize != NULL) {
- optlen = sizeof(option);
- rc = -sock_getsockopt(C2B_SOCK(sock), SOL_SOCKET, SO_SNDBUF,
- (char *)&option, &optlen);
- if (rc != 0) {
- CERROR ("Can't get send buffer size: %d\n", rc);
- return (rc);
- }
- *txbufsize = option;
- }
-
- if (rxbufsize != NULL) {
- optlen = sizeof(option);
- rc = -sock_getsockopt (C2B_SOCK(sock), SOL_SOCKET, SO_RCVBUF,
- (char *)&option, &optlen);
- if (rc != 0) {
- CERROR ("Can't get receive buffer size: %d\n", rc);
- return (rc);
- }
- *rxbufsize = option;
- }
- return 0;
-}
-
-void
-libcfs_sock_release (cfs_socket_t *sock)
-{
- if (C2B_SOCK(sock) != NULL) {
- sock_shutdown(C2B_SOCK(sock), 2);
- sock_close(C2B_SOCK(sock));
- }
- FREE(sock, M_TEMP);
-}
-
-int
-libcfs_sock_connect (cfs_socket_t **sockp, int *fatal,
- __u32 local_ip, int local_port,
- __u32 peer_ip, int peer_port)
-{
- cfs_socket_t *sock;
- struct sockaddr_in srvaddr;
- int rc;
-
- rc = libcfs_sock_create(&sock, fatal, local_ip, local_port);
- if (rc != 0)
- return rc;
-
- bzero(&srvaddr, sizeof(srvaddr));
- srvaddr.sin_len = sizeof(struct sockaddr_in);
- srvaddr.sin_family = AF_INET;
- srvaddr.sin_port = htons(peer_port);
- srvaddr.sin_addr.s_addr = htonl(peer_ip);
-
- rc = -sock_connect(C2B_SOCK(sock), (struct sockaddr *)&srvaddr, 0);
- if (rc == 0) {
- *sockp = sock;
- return 0;
- }
-
- *fatal = !(rc == -EADDRNOTAVAIL || rc == -EADDRINUSE);
- CDEBUG_LIMIT(*fatal ? D_NETERROR : D_NET,
- "Error %d connecting %u.%u.%u.%u/%d -> %u.%u.%u.%u/%d\n", rc,
- HIPQUAD(local_ip), local_port, HIPQUAD(peer_ip), peer_port);
-
- libcfs_sock_release(sock);
- return rc;
-}
-
-#else /* !__DARWIN8__ */
-
-/*
- * To use bigger buffer for socket:
- * 1. Increase nmbclusters (Cannot increased by sysctl because it's ready only, so
- * we must patch kernel).
- * 2. Increase net.inet.tcp.reass.maxsegments
- * 3. Increase net.inet.tcp.sendspace
- * 4. Increase net.inet.tcp.recvspace
- * 5. Increase kern.ipc.maxsockbuf
- */
-#define KSOCK_MAX_BUF (1152*1024)
-
-int
-libcfs_ipif_query (char *name, int *up, __u32 *ip, __u32 *mask)
-{
- struct socket *so;
- struct ifreq ifr;
- int nob;
- int rc;
- __u32 val;
- CFS_DECL_FUNNEL_DATA;
-
- CFS_NET_IN;
- rc = socreate(PF_INET, &so, SOCK_STREAM, 0);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't create socket: %d\n", rc);
- return (-rc);
- }
- nob = strnlen(name, IFNAMSIZ);
- if (nob == IFNAMSIZ) {
- CERROR("Interface name %s too long\n", name);
- rc = -EINVAL;
- goto out;
- }
-
- CLASSERT (sizeof(ifr.ifr_name) >= IFNAMSIZ);
- strcpy(ifr.ifr_name, name);
- CFS_NET_IN;
- rc = ifioctl(so, SIOCGIFFLAGS, (caddr_t)&ifr, current_proc());
- CFS_NET_EX;
-
- if (rc != 0) {
- CERROR("Can't get flags for interface %s\n", name);
- goto out;
- }
- if ((ifr.ifr_flags & IFF_UP) == 0) {
- CDEBUG(D_NET, "Interface %s down\n", name);
- *up = 0;
- *ip = *mask = 0;
- goto out;
- }
-
- *up = 1;
- strcpy(ifr.ifr_name, name);
- *((struct sockaddr_in *)&ifr.ifr_addr) = blank_sin();
- CFS_NET_IN;
- rc = ifioctl(so, SIOCGIFADDR, (caddr_t)&ifr, current_proc());
- CFS_NET_EX;
-
- if (rc != 0) {
- CERROR("Can't get IP address for interface %s\n", name);
- goto out;
- }
-
- val = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
- *ip = ntohl(val);
-
- strcpy(ifr.ifr_name, name);
- *((struct sockaddr_in *)&ifr.ifr_addr) = blank_sin();
- CFS_NET_IN;
- rc = ifioctl(so, SIOCGIFNETMASK, (caddr_t)&ifr, current_proc());
- CFS_NET_EX;
-
- if (rc != 0) {
- CERROR("Can't get netmask for interface %s\n", name);
- goto out;
- }
-
- val = ((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr.s_addr;
- *mask = ntohl(val);
-out:
- CFS_NET_IN;
- soclose(so);
- CFS_NET_EX;
- return -rc;
-}
-
-int
-libcfs_ipif_enumerate (char ***namesp)
-{
- /* Allocate and fill in 'names', returning # interfaces/error */
- char **names;
- int toobig;
- int nalloc;
- int nfound;
- struct socket *so;
- struct ifreq *ifr;
- struct ifconf ifc;
- int rc;
- int nob;
- int i;
- CFS_DECL_FUNNEL_DATA;
-
- CFS_NET_IN;
- rc = socreate(PF_INET, &so, SOCK_STREAM, 0);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't create socket: %d\n", rc);
- return (-rc);
- }
-
- nalloc = 16; /* first guess at max interfaces */
- toobig = 0;
- for (;;) {
- if (nalloc * sizeof(*ifr) > PAGE_CACHE_SIZE) {
- toobig = 1;
- nalloc = PAGE_CACHE_SIZE/sizeof(*ifr);
- CWARN("Too many interfaces: only enumerating first %d\n",
- nalloc);
- }
-
- LIBCFS_ALLOC(ifr, nalloc * sizeof(*ifr));
- if (ifr == NULL) {
- CERROR ("ENOMEM enumerating up to %d interfaces\n", nalloc);
- rc = -ENOMEM;
- goto out0;
- }
-
- ifc.ifc_buf = (char *)ifr;
- ifc.ifc_len = nalloc * sizeof(*ifr);
-
- CFS_NET_IN;
- rc = -ifioctl(so, SIOCGIFCONF, (caddr_t)&ifc, current_proc());
- CFS_NET_EX;
-
- if (rc < 0) {
- CERROR ("Error %d enumerating interfaces\n", rc);
- goto out1;
- }
-
- nfound = ifc.ifc_len/sizeof(*ifr);
- LASSERT (nfound <= nalloc);
-
- if (nfound < nalloc || toobig)
- break;
-
- LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
- nalloc *= 2;
- }
- if (nfound == 0)
- goto out1;
-
- LIBCFS_ALLOC(names, nfound * sizeof(*names));
- if (names == NULL) {
- rc = -ENOMEM;
- goto out1;
- }
- /* NULL out all names[i] */
- memset (names, 0, nfound * sizeof(*names));
-
- for (i = 0; i < nfound; i++) {
-
- nob = strnlen (ifr[i].ifr_name, IFNAMSIZ);
- if (nob == IFNAMSIZ) {
- /* no space for terminating NULL */
- CERROR("interface name %.*s too long (%d max)\n",
- nob, ifr[i].ifr_name, IFNAMSIZ);
- rc = -ENAMETOOLONG;
- goto out2;
- }
-
- LIBCFS_ALLOC(names[i], IFNAMSIZ);
- if (names[i] == NULL) {
- rc = -ENOMEM;
- goto out2;
- }
-
- memcpy(names[i], ifr[i].ifr_name, nob);
- names[i][nob] = 0;
- }
-
- *namesp = names;
- rc = nfound;
-
-out2:
- if (rc < 0)
- libcfs_ipif_free_enumeration(names, nfound);
-out1:
- LIBCFS_FREE(ifr, nalloc * sizeof(*ifr));
-out0:
- CFS_NET_IN;
- soclose(so);
- CFS_NET_EX;
- return rc;
-}
-
-static int
-libcfs_sock_create (struct socket **sockp, int *fatal,
- __u32 local_ip, int local_port)
-{
- struct sockaddr_in locaddr;
- struct socket *so;
- struct sockopt sopt;
- int option;
- int rc;
- CFS_DECL_FUNNEL_DATA;
-
- *fatal = 1;
- CFS_NET_IN;
- rc = socreate(PF_INET, &so, SOCK_STREAM, 0);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't create socket: %d\n", rc);
- return (-rc);
- }
-
- bzero(&sopt, sizeof sopt);
- option = 1;
- sopt.sopt_level = SOL_SOCKET;
- sopt.sopt_name = SO_REUSEADDR;
- sopt.sopt_val = &option;
- sopt.sopt_valsize = sizeof(option);
- CFS_NET_IN;
- rc = sosetopt(so, &sopt);
- if (rc != 0) {
- CFS_NET_EX;
- CERROR ("Can't set sock reuse address: %d\n", rc);
- goto out;
- }
- /* can't specify a local port without a local IP */
- LASSERT (local_ip == 0 || local_port != 0);
-
- if (local_ip != 0 || local_port != 0) {
- bzero (&locaddr, sizeof (locaddr));
- locaddr.sin_len = sizeof(struct sockaddr_in);
- locaddr.sin_family = AF_INET;
- locaddr.sin_port = htons (local_port);
- locaddr.sin_addr.s_addr = (local_ip != 0) ? htonl(local_ip) :
- INADDR_ANY;
-
- rc = sobind(so, (struct sockaddr *)&locaddr);
- if (rc == EADDRINUSE) {
- CFS_NET_EX;
- CDEBUG(D_NET, "Port %d already in use\n", local_port);
- *fatal = 0;
- goto out;
- }
- if (rc != 0) {
- CFS_NET_EX;
- CERROR ("Can't bind to local IP Address %u.%u.%u.%u: %d\n",
- HIPQUAD(local_ip), rc);
- goto out;
- }
- }
- *sockp = so;
- return 0;
-out:
- CFS_NET_IN;
- soclose(so);
- CFS_NET_EX;
- return -rc;
-}
-
-int
-libcfs_sock_listen (struct socket **sockp,
- __u32 local_ip, int local_port, int backlog)
-{
- int fatal;
- int rc;
- CFS_DECL_FUNNEL_DATA;
-
- rc = libcfs_sock_create(sockp, &fatal, local_ip, local_port);
- if (rc != 0) {
- if (!fatal)
- CERROR("Can't create socket: port %d already in use\n",
- local_port);
- return rc;
- }
- CFS_NET_IN;
- rc = solisten(*sockp, backlog);
- CFS_NET_EX;
- if (rc == 0)
- return 0;
- CERROR("Can't set listen backlog %d: %d\n", backlog, rc);
- CFS_NET_IN;
- soclose(*sockp);
- CFS_NET_EX;
- return -rc;
-}
-
-int
-libcfs_sock_accept (struct socket **newsockp, struct socket *sock)
-{
- struct socket *so;
- struct sockaddr *sa;
- int error, s;
- CFS_DECL_FUNNEL_DATA;
-
- CFS_NET_IN;
- s = splnet();
- if ((sock->so_options & SO_ACCEPTCONN) == 0) {
- splx(s);
- CFS_NET_EX;
- return (-EINVAL);
- }
-
- if ((sock->so_state & SS_NBIO) && sock->so_comp.tqh_first == NULL) {
- splx(s);
- CFS_NET_EX;
- return (-EWOULDBLOCK);
- }
-
- error = 0;
- while (TAILQ_EMPTY(&sock->so_comp) && sock->so_error == 0) {
- if (sock->so_state & SS_CANTRCVMORE) {
- sock->so_error = ECONNABORTED;
- break;
- }
- error = tsleep((caddr_t)&sock->so_timeo, PSOCK | PCATCH,
- "accept", 0);
- if (error) {
- splx(s);
- CFS_NET_EX;
- return (-error);
- }
- }
- if (sock->so_error) {
- error = sock->so_error;
- sock->so_error = 0;
- splx(s);
- CFS_NET_EX;
- return (-error);
- }
-
- /*
- * At this point we know that there is at least one connection
- * ready to be accepted. Remove it from the queue prior to
- * allocating the file descriptor for it since falloc() may
- * block allowing another process to accept the connection
- * instead.
- */
- so = TAILQ_FIRST(&sock->so_comp);
- TAILQ_REMOVE(&sock->so_comp, so, so_list);
- sock->so_qlen--;
-
- so->so_state &= ~SS_COMP;
- so->so_head = NULL;
- sa = 0;
- (void) soaccept(so, &sa);
-
- *newsockp = so;
- FREE(sa, M_SONAME);
- splx(s);
- CFS_NET_EX;
- return (-error);
-}
-
-void
-libcfs_sock_abort_accept (struct socket *sock)
-{
- wakeup(&sock->so_timeo);
-}
-
-/*
- * XXX Liang: timeout for write is not supported yet.
- */
-int
-libcfs_sock_write (struct socket *sock, void *buffer, int nob, int timeout)
-{
- int rc;
- CFS_DECL_NET_DATA;
-
- while (nob > 0) {
- struct iovec iov = {
- .iov_base = buffer,
- .iov_len = nob
- };
- struct uio suio = {
- .uio_iov = &iov,
- .uio_iovcnt = 1,
- .uio_offset = 0,
- .uio_resid = nob,
- .uio_segflg = UIO_SYSSPACE,
- .uio_rw = UIO_WRITE,
- .uio_procp = NULL
- };
-
- CFS_NET_IN;
- rc = sosend(sock, NULL, &suio, (struct mbuf *)0, (struct mbuf *)0, 0);
- CFS_NET_EX;
-
- if (rc != 0) {
- if ( suio.uio_resid != nob && ( rc == ERESTART || rc == EINTR ||\
- rc == EWOULDBLOCK))
- rc = 0;
- if ( rc != 0 )
- return -rc;
- rc = nob - suio.uio_resid;
- buffer = ((char *)buffer) + rc;
- nob = suio.uio_resid;
- continue;
- }
- break;
- }
- return (0);
-}
-
-/*
- * XXX Liang: timeout for read is not supported yet.
- */
-int
-libcfs_sock_read (struct socket *sock, void *buffer, int nob, int timeout)
-{
- int rc;
- CFS_DECL_NET_DATA;
-
- while (nob > 0) {
- struct iovec iov = {
- .iov_base = buffer,
- .iov_len = nob
- };
- struct uio ruio = {
- .uio_iov = &iov,
- .uio_iovcnt = 1,
- .uio_offset = 0,
- .uio_resid = nob,
- .uio_segflg = UIO_SYSSPACE,
- .uio_rw = UIO_READ,
- .uio_procp = NULL
- };
-
- CFS_NET_IN;
- rc = soreceive(sock, (struct sockaddr **)0, &ruio, (struct mbuf **)0, (struct mbuf **)0, (int *)0);
- CFS_NET_EX;
-
- if (rc != 0) {
- if ( ruio.uio_resid != nob && ( rc == ERESTART || rc == EINTR ||\
- rc == EWOULDBLOCK))
- rc = 0;
- if (rc != 0)
- return -rc;
- rc = nob - ruio.uio_resid;
- buffer = ((char *)buffer) + rc;
- nob = ruio.uio_resid;
- continue;
- }
- break;
- }
- return (0);
-}
-
-int
-libcfs_sock_setbuf (struct socket *sock, int txbufsize, int rxbufsize)
-{
- struct sockopt sopt;
- int rc = 0;
- int option;
- CFS_DECL_NET_DATA;
-
- bzero(&sopt, sizeof sopt);
- sopt.sopt_dir = SOPT_SET;
- sopt.sopt_level = SOL_SOCKET;
- sopt.sopt_val = &option;
- sopt.sopt_valsize = sizeof(option);
-
- if (txbufsize != 0) {
- option = txbufsize;
- if (option > KSOCK_MAX_BUF)
- option = KSOCK_MAX_BUF;
-
- sopt.sopt_name = SO_SNDBUF;
- CFS_NET_IN;
- rc = sosetopt(sock, &sopt);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't set send buffer %d: %d\n",
- option, rc);
-
- return -rc;
- }
- }
-
- if (rxbufsize != 0) {
- option = rxbufsize;
- sopt.sopt_name = SO_RCVBUF;
- CFS_NET_IN;
- rc = sosetopt(sock, &sopt);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't set receive buffer %d: %d\n",
- option, rc);
- return -rc;
- }
- }
- return 0;
-}
-
-int
-libcfs_sock_getaddr (struct socket *sock, int remote, __u32 *ip, int *port)
-{
- struct sockaddr_in *sin;
- struct sockaddr *sa = NULL;
- int rc;
- CFS_DECL_NET_DATA;
-
- if (remote != 0) {
- CFS_NET_IN;
- rc = sock->so_proto->pr_usrreqs->pru_peeraddr(sock, &sa);
- CFS_NET_EX;
-
- if (rc != 0) {
- if (sa) FREE(sa, M_SONAME);
- CERROR ("Error %d getting sock peer IP\n", rc);
- return -rc;
- }
- } else {
- CFS_NET_IN;
- rc = sock->so_proto->pr_usrreqs->pru_sockaddr(sock, &sa);
- CFS_NET_EX;
- if (rc != 0) {
- if (sa) FREE(sa, M_SONAME);
- CERROR ("Error %d getting sock local IP\n", rc);
- return -rc;
- }
- }
- if (sa != NULL) {
- sin = (struct sockaddr_in *)sa;
- if (ip != NULL)
- *ip = ntohl (sin->sin_addr.s_addr);
- if (port != NULL)
- *port = ntohs (sin->sin_port);
- if (sa)
- FREE(sa, M_SONAME);
- }
- return 0;
-}
-
-int
-libcfs_sock_getbuf (struct socket *sock, int *txbufsize, int *rxbufsize)
-{
- struct sockopt sopt;
- int rc;
- CFS_DECL_NET_DATA;
-
- bzero(&sopt, sizeof sopt);
- sopt.sopt_dir = SOPT_GET;
- sopt.sopt_level = SOL_SOCKET;
-
- if (txbufsize != NULL) {
- sopt.sopt_val = txbufsize;
- sopt.sopt_valsize = sizeof(*txbufsize);
- sopt.sopt_name = SO_SNDBUF;
- CFS_NET_IN;
- rc = sogetopt(sock, &sopt);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't get send buffer size: %d\n", rc);
- return -rc;
- }
- }
-
- if (rxbufsize != NULL) {
- sopt.sopt_val = rxbufsize;
- sopt.sopt_valsize = sizeof(*rxbufsize);
- sopt.sopt_name = SO_RCVBUF;
- CFS_NET_IN;
- rc = sogetopt(sock, &sopt);
- CFS_NET_EX;
- if (rc != 0) {
- CERROR ("Can't get receive buffer size: %d\n", rc);
- return -rc;
- }
- }
- return 0;
-}
-
-int
-libcfs_sock_connect (struct socket **sockp, int *fatal,
- __u32 local_ip, int local_port,
- __u32 peer_ip, int peer_port)
-{
- struct sockaddr_in srvaddr;
- struct socket *so;
- int s;
- int rc;
- CFS_DECL_FUNNEL_DATA;
-
- rc = libcfs_sock_create(sockp, fatal, local_ip, local_port);
- if (rc != 0)
- return rc;
- so = *sockp;
- bzero(&srvaddr, sizeof(srvaddr));
- srvaddr.sin_len = sizeof(struct sockaddr_in);
- srvaddr.sin_family = AF_INET;
- srvaddr.sin_port = htons (peer_port);
- srvaddr.sin_addr.s_addr = htonl (peer_ip);
-
- CFS_NET_IN;
- rc = soconnect(so, (struct sockaddr *)&srvaddr);
- if (rc != 0) {
- CFS_NET_EX;
- if (rc != EADDRNOTAVAIL && rc != EADDRINUSE)
- CNETERR("Error %d connecting %u.%u.%u.%u/%d -> %u.%u.%u.%u/%d\n", rc,
- HIPQUAD(local_ip), local_port, HIPQUAD(peer_ip), peer_port);
- goto out;
- }
- s = splnet();
- while ((so->so_state & SS_ISCONNECTING) && so->so_error == 0) {
- CDEBUG(D_NET, "ksocknal sleep for waiting auto_connect.\n");
- (void) tsleep((caddr_t)&so->so_timeo, PSOCK, "ksocknal_conn", hz);
- }
- if ((rc = so->so_error) != 0) {
- so->so_error = 0;
- splx(s);
- CFS_NET_EX;
- CNETERR("Error %d connecting %u.%u.%u.%u/%d -> %u.%u.%u.%u/%d\n", rc,
- HIPQUAD(local_ip), local_port, HIPQUAD(peer_ip), peer_port);
- goto out;
- }
- LASSERT(so->so_state & SS_ISCONNECTED);
- splx(s);
- CFS_NET_EX;
- if (sockp)
- *sockp = so;
- return (0);
-out:
- CFS_NET_IN;
- soshutdown(so, 2);
- soclose(so);
- CFS_NET_EX;
- return (-rc);
-}
-
-void
-libcfs_sock_release (struct socket *sock)
-{
- CFS_DECL_FUNNEL_DATA;
- CFS_NET_IN;
- soshutdown(sock, 0);
- CFS_NET_EX;
-}
-
-#endif
git://git.whamcloud.com / fs / lustre-release.git / blobdiff