sbin_PROGRAMS = mount.nfs
EXTRA_DIST = nfsmount.x $(man8_MANS) $(man5_MANS)
-mount_nfs_SOURCES = mount.c error.c \
+mount_nfs_SOURCES = mount.c error.c network.c \
nfsmount.c nfs4mount.c \
nfsumount.c \
- mount_constants.h error.h \
+ mount_constants.h error.h network.h \
nfs4_mount.h nfs_mount4.h
mount_nfs_LDADD = ../../support/nfs/libnfs.a \
#include "nfsumount.h"
#include "mount.h"
#include "error.h"
+#include "network.h"
char *progname;
int nfs_mount_data_version;
return 0;
}
-extern u_short getport(
- struct sockaddr_in *saddr,
- u_long prog,
- u_long vers,
- u_int prot);
-
static int probe_statd()
{
struct sockaddr_in addr;
--- /dev/null
+/*
+ * network.c -- Provide common network functions for NFS mount/umount
+ *
+ * Copyright (C) 2007 Oracle. All rights reserved.
+ * Copyright (C) 2007 Chuck Lever <chuck.lever@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ */
+
+#include <ctype.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <netdb.h>
+#include <time.h>
+#include <rpc/rpc.h>
+#include <rpc/pmap_prot.h>
+#include <rpc/pmap_clnt.h>
+#include <sys/socket.h>
+
+#include "conn.h"
+#include "xcommon.h"
+#include "mount.h"
+#include "nls.h"
+#include "nfsumount.h"
+#include "nfs_mount.h"
+#include "mount_constants.h"
+#include "network.h"
+
+#ifdef HAVE_RPCSVC_NFS_PROT_H
+#include <rpcsvc/nfs_prot.h>
+#else
+#include <linux/nfs.h>
+#define nfsstat nfs_stat
+#endif
+
+#ifndef NFS_PORT
+#define NFS_PORT 2049
+#endif
+
+extern int nfs_mount_data_version;
+extern char *progname;
+extern int verbose;
+
+static const unsigned int probe_udp_only[] = {
+ IPPROTO_UDP,
+ 0,
+};
+
+static const unsigned int probe_udp_first[] = {
+ IPPROTO_UDP,
+ IPPROTO_TCP,
+ 0,
+};
+
+static const unsigned int probe_tcp_first[] = {
+ IPPROTO_TCP,
+ IPPROTO_UDP,
+ 0,
+};
+
+static const unsigned long probe_nfs2_only[] = {
+ 2,
+ 0,
+};
+
+static const unsigned long probe_nfs3_first[] = {
+ 3,
+ 2,
+ 0,
+};
+
+static const unsigned long probe_mnt1_first[] = {
+ 1,
+ 2,
+ 0,
+};
+
+static const unsigned long probe_mnt3_first[] = {
+ 3,
+ 1,
+ 2,
+ 0,
+};
+
+int nfs_gethostbyname(const char *hostname, struct sockaddr_in *saddr)
+{
+ struct hostent *hp;
+
+ saddr->sin_family = AF_INET;
+ if (!inet_aton(hostname, &saddr->sin_addr)) {
+ if ((hp = gethostbyname(hostname)) == NULL) {
+ nfs_error(_("mount: can't get address for %s\n"),
+ hostname);
+ return 0;
+ } else {
+ if (hp->h_length > sizeof(*saddr)) {
+ nfs_error(_("mount: got bad hp->h_length\n"));
+ hp->h_length = sizeof(*saddr);
+ }
+ memcpy(&saddr->sin_addr, hp->h_addr, hp->h_length);
+ }
+ }
+ return 1;
+}
+
+/*
+ * getport() is very similar to pmap_getport() with
+ * the exception this version uses a non-reserve ports
+ * instead of reserve ports since reserve ports
+ * are not needed for pmap requests.
+ */
+unsigned short getport(struct sockaddr_in *saddr, unsigned long prog,
+ unsigned long vers, unsigned int prot)
+{
+ unsigned short port = 0;
+ int socket;
+ CLIENT *clnt = NULL;
+ struct pmap parms;
+ enum clnt_stat stat;
+
+ saddr->sin_port = htons (PMAPPORT);
+ socket = get_socket(saddr, prot, FALSE, FALSE);
+
+ switch (prot) {
+ case IPPROTO_UDP:
+ clnt = clntudp_bufcreate(saddr,
+ PMAPPROG, PMAPVERS, TIMEOUT, &socket,
+ UDPMSGSIZE, UDPMSGSIZE);
+ break;
+ case IPPROTO_TCP:
+ clnt = clnttcp_create(saddr,
+ PMAPPROG, PMAPVERS, &socket, 50, 500);
+ break;
+ }
+ if (clnt != NULL) {
+ parms.pm_prog = prog;
+ parms.pm_vers = vers;
+ parms.pm_prot = prot;
+ parms.pm_port = 0; /* not needed or used */
+
+ stat = clnt_call(clnt, PMAPPROC_GETPORT, (xdrproc_t)xdr_pmap,
+ (caddr_t)&parms, (xdrproc_t)xdr_u_short, (caddr_t)&port, TIMEOUT);
+ if (stat) {
+ clnt_geterr(clnt, &rpc_createerr.cf_error);
+ rpc_createerr.cf_stat = stat;
+ }
+ clnt_destroy(clnt);
+ if (stat != RPC_SUCCESS)
+ port = 0;
+ else if (port == 0)
+ rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
+ }
+ if (socket != 1)
+ close(socket);
+
+ return port;
+}
+
+/*
+ * Use the portmapper to discover whether or not the service we want is
+ * available. The lists 'versions' and 'protos' define ordered sequences
+ * of service versions and udp/tcp protocols to probe for.
+ */
+static int probe_port(clnt_addr_t *server, const unsigned long *versions,
+ const unsigned int *protos)
+{
+ struct sockaddr_in *saddr = &server->saddr;
+ struct pmap *pmap = &server->pmap;
+ const unsigned long prog = pmap->pm_prog, *p_vers;
+ const unsigned int prot = (u_int)pmap->pm_prot, *p_prot;
+ const u_short port = (u_short) pmap->pm_port;
+ unsigned long vers = pmap->pm_vers;
+ unsigned short p_port;
+
+ p_prot = prot ? &prot : protos;
+ p_vers = vers ? &vers : versions;
+ rpc_createerr.cf_stat = 0;
+ for (;;) {
+ saddr->sin_port = htons(PMAPPORT);
+ p_port = getport(saddr, prog, *p_vers, *p_prot);
+ if (p_port) {
+ if (!port || port == p_port) {
+ saddr->sin_port = htons(p_port);
+ if (verbose) {
+ printf(_("%s: trying %s prog %ld vers "
+ "%ld prot %s port %d\n"),
+ progname,
+ inet_ntoa(saddr->sin_addr),
+ prog, *p_vers,
+ *p_prot == IPPROTO_UDP ?
+ "udp" : "tcp",
+ p_port);
+ }
+ if (clnt_ping(saddr, prog, *p_vers, *p_prot, NULL))
+ goto out_ok;
+ if (rpc_createerr.cf_stat == RPC_TIMEDOUT)
+ goto out_bad;
+ }
+ }
+ if (rpc_createerr.cf_stat != RPC_PROGNOTREGISTERED)
+ goto out_bad;
+
+ if (!prot) {
+ if (*++p_prot)
+ continue;
+ p_prot = protos;
+ }
+ if (vers == pmap->pm_vers) {
+ p_vers = versions;
+ vers = 0;
+ }
+ if (vers || !*++p_vers)
+ break;
+ }
+
+out_bad:
+ return 0;
+
+out_ok:
+ if (!vers)
+ pmap->pm_vers = *p_vers;
+ if (!prot)
+ pmap->pm_prot = *p_prot;
+ if (!port)
+ pmap->pm_port = p_port;
+ rpc_createerr.cf_stat = 0;
+ return 1;
+}
+
+int probe_nfsport(clnt_addr_t *nfs_server)
+{
+ struct pmap *pmap = &nfs_server->pmap;
+
+ if (pmap->pm_vers && pmap->pm_prot && pmap->pm_port)
+ return 1;
+
+ if (nfs_mount_data_version >= 4)
+ return probe_port(nfs_server, probe_nfs3_first, probe_tcp_first);
+ else
+ return probe_port(nfs_server, probe_nfs2_only, probe_udp_only);
+}
+
+int probe_mntport(clnt_addr_t *mnt_server)
+{
+ struct pmap *pmap = &mnt_server->pmap;
+
+ if (pmap->pm_vers && pmap->pm_prot && pmap->pm_port)
+ return 1;
+
+ if (nfs_mount_data_version >= 4)
+ return probe_port(mnt_server, probe_mnt3_first, probe_udp_first);
+ else
+ return probe_port(mnt_server, probe_mnt1_first, probe_udp_only);
+}
+
+int probe_bothports(clnt_addr_t *mnt_server, clnt_addr_t *nfs_server)
+{
+ struct pmap *nfs_pmap = &nfs_server->pmap;
+ struct pmap *mnt_pmap = &mnt_server->pmap;
+ struct pmap save_nfs, save_mnt;
+ int res;
+ const unsigned long *probe_vers;
+
+ if (mnt_pmap->pm_vers && !nfs_pmap->pm_vers)
+ nfs_pmap->pm_vers = mntvers_to_nfs(mnt_pmap->pm_vers);
+ else if (nfs_pmap->pm_vers && !mnt_pmap->pm_vers)
+ mnt_pmap->pm_vers = nfsvers_to_mnt(nfs_pmap->pm_vers);
+ if (nfs_pmap->pm_vers)
+ goto version_fixed;
+
+ memcpy(&save_nfs, nfs_pmap, sizeof(save_nfs));
+ memcpy(&save_mnt, mnt_pmap, sizeof(save_mnt));
+ probe_vers = (nfs_mount_data_version >= 4) ?
+ probe_mnt3_first : probe_mnt1_first;
+
+ for (; *probe_vers; probe_vers++) {
+ nfs_pmap->pm_vers = mntvers_to_nfs(*probe_vers);
+ if ((res = probe_nfsport(nfs_server) != 0)) {
+ mnt_pmap->pm_vers = nfsvers_to_mnt(nfs_pmap->pm_vers);
+ if ((res = probe_mntport(mnt_server)) != 0)
+ return 1;
+ memcpy(mnt_pmap, &save_mnt, sizeof(*mnt_pmap));
+ }
+ switch (rpc_createerr.cf_stat) {
+ case RPC_PROGVERSMISMATCH:
+ case RPC_PROGNOTREGISTERED:
+ break;
+ default:
+ goto out_bad;
+ }
+ memcpy(nfs_pmap, &save_nfs, sizeof(*nfs_pmap));
+ }
+
+out_bad:
+ return 0;
+
+version_fixed:
+ if (!probe_nfsport(nfs_server))
+ goto out_bad;
+ return probe_mntport(mnt_server);
+}
--- /dev/null
+/*
+ * network.h -- Provide common network functions for NFS mount/umount
+ *
+ * Copyright (C) 2007 Oracle. All rights reserved.
+ * Copyright (C) 2007 Chuck Lever <chuck.lever@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ */
+
+#include "conn.h"
+
+int nfs_gethostbyname(const char *, struct sockaddr_in *);
+unsigned short getport(struct sockaddr_in *, unsigned long,
+ unsigned long, unsigned int);
+int probe_mntport(clnt_addr_t *);
+int probe_nfsport(clnt_addr_t *);
+int probe_bothports(clnt_addr_t *, clnt_addr_t *);
#include "mount_constants.h"
#include "nls.h"
#include "error.h"
+#include "network.h"
#ifndef NFS_PORT
#define NFS_PORT 2049
extern int linux_version_code();
-static const unsigned int probe_udp_only[] = {
- IPPROTO_UDP,
- 0,
-};
-
-static const unsigned int probe_udp_first[] = {
- IPPROTO_UDP,
- IPPROTO_TCP,
- 0,
-};
-
-static const unsigned int probe_tcp_first[] = {
- IPPROTO_TCP,
- IPPROTO_UDP,
- 0,
-};
-
-static const unsigned long probe_nfs2_only[] = {
- 2,
- 0,
-};
-
-static const unsigned long probe_nfs3_first[] = {
- 3,
- 2,
- 0,
-};
-
-static const unsigned long probe_mnt1_first[] = {
- 1,
- 2,
- 0,
-};
-
-static const unsigned long probe_mnt3_first[] = {
- 3,
- 1,
- 2,
- 0,
-};
-
-int nfs_gethostbyname(const char *, struct sockaddr_in *);
-int nfs_gethostbyname(const char *hostname, struct sockaddr_in *saddr)
-{
- struct hostent *hp;
-
- saddr->sin_family = AF_INET;
- if (!inet_aton(hostname, &saddr->sin_addr)) {
- if ((hp = gethostbyname(hostname)) == NULL) {
- fprintf(stderr, _("mount: can't get address for %s\n"),
- hostname);
- return 0;
- } else {
- if (hp->h_length > sizeof(*saddr)) {
- fprintf(stderr,
- _("mount: got bad hp->h_length\n"));
- hp->h_length = sizeof(*saddr);
- }
- memcpy(&saddr->sin_addr, hp->h_addr, hp->h_length);
- }
- }
- return 1;
-}
-
-/*
- * getport() is very similar to pmap_getport() with
- * the exception this version uses a non-reserve ports
- * instead of reserve ports since reserve ports
- * are not needed for pmap requests.
- */
-u_short
-getport(
- struct sockaddr_in *saddr,
- u_long prog,
- u_long vers,
- u_int prot)
-{
- u_short port = 0;
- int socket;
- CLIENT *clnt = NULL;
- struct pmap parms;
- enum clnt_stat stat;
-
- saddr->sin_port = htons (PMAPPORT);
- socket = get_socket(saddr, prot, FALSE, FALSE);
-
- switch (prot) {
- case IPPROTO_UDP:
- clnt = clntudp_bufcreate(saddr,
- PMAPPROG, PMAPVERS, TIMEOUT, &socket,
- UDPMSGSIZE, UDPMSGSIZE);
- break;
- case IPPROTO_TCP:
- clnt = clnttcp_create(saddr,
- PMAPPROG, PMAPVERS, &socket, 50, 500);
- break;
- }
- if (clnt != NULL) {
- parms.pm_prog = prog;
- parms.pm_vers = vers;
- parms.pm_prot = prot;
- parms.pm_port = 0; /* not needed or used */
-
- stat = clnt_call(clnt, PMAPPROC_GETPORT, (xdrproc_t)xdr_pmap,
- (caddr_t)&parms, (xdrproc_t)xdr_u_short, (caddr_t)&port, TIMEOUT);
- if (stat) {
- clnt_geterr(clnt, &rpc_createerr.cf_error);
- rpc_createerr.cf_stat = stat;
- }
- clnt_destroy(clnt);
- if (stat != RPC_SUCCESS)
- port = 0;
- else if (port == 0)
- rpc_createerr.cf_stat = RPC_PROGNOTREGISTERED;
- }
- if (socket != 1)
- close(socket);
-
- return port;
-}
-
-/*
- * Use the portmapper to discover whether or not the service we want is
- * available. The lists 'versions' and 'protos' define ordered sequences
- * of service versions and udp/tcp protocols to probe for.
- */
-static int
-probe_port(clnt_addr_t *server,
- const u_long *versions,
- const u_int *protos)
-{
- struct sockaddr_in *saddr = &server->saddr;
- struct pmap *pmap = &server->pmap;
- const u_long prog = pmap->pm_prog, *p_vers;
- const u_int prot = (u_int)pmap->pm_prot,
- *p_prot;
- const u_short port = (u_short) pmap->pm_port;
- u_long vers = pmap->pm_vers;
- u_short p_port;
- p_prot = prot ? &prot : protos;
- p_vers = vers ? &vers : versions;
- rpc_createerr.cf_stat = 0;
- for (;;) {
- saddr->sin_port = htons(PMAPPORT);
- p_port = getport(saddr, prog, *p_vers, *p_prot);
- if (p_port) {
- if (!port || port == p_port) {
- saddr->sin_port = htons(p_port);
- if (verbose) {
- fprintf(stderr,
- "mount: trying %s prog %ld vers %ld prot %s port %d\n",
- inet_ntoa(saddr->sin_addr), prog, *p_vers,
- *p_prot == IPPROTO_UDP ? "udp" : "tcp", p_port);
- }
- if (clnt_ping(saddr, prog, *p_vers, *p_prot, NULL))
- goto out_ok;
- if (rpc_createerr.cf_stat == RPC_TIMEDOUT)
- goto out_bad;
- }
- }
- if (rpc_createerr.cf_stat != RPC_PROGNOTREGISTERED)
- goto out_bad;
-
- if (!prot) {
- if (*++p_prot)
- continue;
- p_prot = protos;
- }
- if (vers == pmap->pm_vers) {
- p_vers = versions;
- vers = 0;
- }
- if (vers || !*++p_vers)
- break;
- }
-out_bad:
- return 0;
-
- out_ok:
- if (!vers)
- pmap->pm_vers = *p_vers;
- if (!prot)
- pmap->pm_prot = *p_prot;
- if (!port)
- pmap->pm_port = p_port;
- rpc_createerr.cf_stat = 0;
- return 1;
-}
-
-static int probe_nfsport(clnt_addr_t *nfs_server)
-{
- struct pmap *pmap = &nfs_server->pmap;
-
- if (pmap->pm_vers && pmap->pm_prot && pmap->pm_port)
- return 1;
-
- if (nfs_mount_data_version >= 4)
- return probe_port(nfs_server, probe_nfs3_first, probe_tcp_first);
- else
- return probe_port(nfs_server, probe_nfs2_only, probe_udp_only);
-}
-
-int probe_mntport(clnt_addr_t *mnt_server)
-{
- struct pmap *pmap = &mnt_server->pmap;
-
- if (pmap->pm_vers && pmap->pm_prot && pmap->pm_port)
- return 1;
-
- if (nfs_mount_data_version >= 4)
- return probe_port(mnt_server, probe_mnt3_first, probe_udp_first);
- else
- return probe_port(mnt_server, probe_mnt1_first, probe_udp_only);
-}
-
-static int
-probe_bothports(clnt_addr_t *mnt_server, clnt_addr_t *nfs_server)
-{
- struct pmap *nfs_pmap = &nfs_server->pmap;
- struct pmap *mnt_pmap = &mnt_server->pmap;
- struct pmap save_nfs, save_mnt;
- int res;
- const unsigned long *probe_vers;
-
- if (mnt_pmap->pm_vers && !nfs_pmap->pm_vers)
- nfs_pmap->pm_vers = mntvers_to_nfs(mnt_pmap->pm_vers);
- else if (nfs_pmap->pm_vers && !mnt_pmap->pm_vers)
- mnt_pmap->pm_vers = nfsvers_to_mnt(nfs_pmap->pm_vers);
- if (nfs_pmap->pm_vers)
- goto version_fixed;
-
- memcpy(&save_nfs, nfs_pmap, sizeof(save_nfs));
- memcpy(&save_mnt, mnt_pmap, sizeof(save_mnt));
- probe_vers = (nfs_mount_data_version >= 4) ?
- probe_mnt3_first : probe_mnt1_first;
-
- for (; *probe_vers; probe_vers++) {
- nfs_pmap->pm_vers = mntvers_to_nfs(*probe_vers);
- if ((res = probe_nfsport(nfs_server) != 0)) {
- mnt_pmap->pm_vers = nfsvers_to_mnt(nfs_pmap->pm_vers);
- if ((res = probe_mntport(mnt_server)) != 0)
- return 1;
- memcpy(mnt_pmap, &save_mnt, sizeof(*mnt_pmap));
- }
- switch (rpc_createerr.cf_stat) {
- case RPC_PROGVERSMISMATCH:
- case RPC_PROGNOTREGISTERED:
- break;
- default:
- goto out_bad;
- }
- memcpy(nfs_pmap, &save_nfs, sizeof(*nfs_pmap));
- }
-
-out_bad:
- return 0;
-
-version_fixed:
- if (!probe_nfsport(nfs_server))
- goto out_bad;
- return probe_mntport(mnt_server);
-}
-
static inline enum clnt_stat
nfs3_mount(CLIENT *clnt, mnt3arg_t *mnt3arg, mnt3res_t *mnt3res)
{
#include "mount.h"
#include "nfsumount.h"
#include "error.h"
+#include "network.h"
#if !defined(MNT_FORCE)
/* dare not try to include <linux/mount.h> -- lots of errors */
int lazy;
int remount;
-extern int probe_mntport(clnt_addr_t *);
-extern int nfs_gethostbyname(const char *, struct sockaddr_in *);
-
static inline enum clnt_stat
nfs_umount(dirpath *argp, CLIENT *clnt)
{
projects / nfs-utils.git / commitdiff