static int
msdosfs_cmount(struct mntarg *ma, void *data, uint64_t flags)
{
struct msdosfs_args args;
struct export_args exp;
int error;
if (data == NULL)
return (EINVAL);
error = copyin(data, &args, sizeof args);
if (error)
return (error);
vfs_oexport_conv(&args.export, &exp);
ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN);
ma = mount_arg(ma, "export", &exp, sizeof(exp));
ma = mount_argf(ma, "uid", "%d", args.uid);
ma = mount_argf(ma, "gid", "%d", args.gid);
ma = mount_argf(ma, "mask", "%d", args.mask);
ma = mount_argf(ma, "dirmask", "%d", args.dirmask);
ma = mount_argb(ma, args.flags & MSDOSFSMNT_SHORTNAME, "noshortname");
ma = mount_argb(ma, args.flags & MSDOSFSMNT_LONGNAME, "nolongname");
ma = mount_argb(ma, !(args.flags & MSDOSFSMNT_NOWIN95), "nowin95");
ma = mount_argb(ma, args.flags & MSDOSFSMNT_KICONV, "nokiconv");
ma = mount_argsu(ma, "cs_win", args.cs_win, MAXCSLEN);
ma = mount_argsu(ma, "cs_dos", args.cs_dos, MAXCSLEN);
ma = mount_argsu(ma, "cs_local", args.cs_local, MAXCSLEN);
error = kernel_mount(ma, flags);
return (error);
}
static int
cd9660_cmount(struct mntarg *ma, void *data, int flags, struct thread *td)
{
struct iso_args args;
int error;
error = copyin(data, &args, sizeof args);
if (error)
return (error);
ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN);
ma = mount_arg(ma, "export", &args.export, sizeof args.export);
ma = mount_argsu(ma, "cs_disk", args.cs_disk, 64);
ma = mount_argsu(ma, "cs_local", args.cs_local, 64);
ma = mount_argf(ma, "ssector", "%u", args.ssector);
ma = mount_argb(ma, !(args.flags & ISOFSMNT_NORRIP), "norrip");
ma = mount_argb(ma, args.flags & ISOFSMNT_GENS, "nogens");
ma = mount_argb(ma, args.flags & ISOFSMNT_EXTATT, "noextatt");
ma = mount_argb(ma, !(args.flags & ISOFSMNT_NOJOLIET), "nojoliet");
ma = mount_argb(ma,
args.flags & ISOFSMNT_BROKENJOLIET, "nobrokenjoliet");
ma = mount_argb(ma, args.flags & ISOFSMNT_KICONV, "nokiconv");
error = kernel_mount(ma, flags);
return (error);
}
static int
ntfs_cmount (
struct mntarg *ma,
void *data,
uint64_t flags)
{
struct ntfs_args args;
struct export_args exp;
int error;
error = copyin(data, &args, sizeof(args));
if (error)
return (error);
vfs_oexport_conv(&args.export, &exp);
ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN);
ma = mount_arg(ma, "export", &exp, sizeof(exp));
ma = mount_argf(ma, "uid", "%d", args.uid);
ma = mount_argf(ma, "gid", "%d", args.gid);
ma = mount_argf(ma, "mode", "%d", args.mode);
ma = mount_argb(ma, args.flag & NTFS_MFLAG_CASEINS, "nocaseins");
ma = mount_argb(ma, args.flag & NTFS_MFLAG_ALLNAMES, "noallnames");
if (args.flag & NTFS_MFLAG_KICONV) {
ma = mount_argsu(ma, "cs_ntfs", args.cs_ntfs, 64);
ma = mount_argsu(ma, "cs_local", args.cs_local, 64);
}
error = kernel_mount(ma, flags);
return (error);
}
static int
smbfs_cmount(struct mntarg *ma, void * data, uint64_t flags)
{
struct smbfs_args args;
int error;
error = copyin(data, &args, sizeof(struct smbfs_args));
if (error)
return error;
if (args.version != SMBFS_VERSION) {
printf("mount version mismatch: kernel=%d, mount=%d\n",
SMBFS_VERSION, args.version);
return EINVAL;
}
ma = mount_argf(ma, "dev", "%d", args.dev);
ma = mount_argb(ma, args.flags & SMBFS_MOUNT_SOFT, "nosoft");
ma = mount_argb(ma, args.flags & SMBFS_MOUNT_INTR, "nointr");
ma = mount_argb(ma, args.flags & SMBFS_MOUNT_STRONG, "nostrong");
ma = mount_argb(ma, args.flags & SMBFS_MOUNT_HAVE_NLS, "nohave_nls");
ma = mount_argb(ma, !(args.flags & SMBFS_MOUNT_NO_LONG), "nolong");
ma = mount_arg(ma, "rootpath", args.root_path, -1);
ma = mount_argf(ma, "uid", "%d", args.uid);
ma = mount_argf(ma, "gid", "%d", args.gid);
ma = mount_argf(ma, "file_mode", "%d", args.file_mode);
ma = mount_argf(ma, "dir_mode", "%d", args.dir_mode);
ma = mount_argf(ma, "caseopt", "%d", args.caseopt);
error = kernel_mount(ma, flags);
return (error);
}
/*
* Compatibility shim for old mount(2) system call
*/
int
pfs_cmount(struct mntarg *ma, void *data, int flags)
{
int error;
error = kernel_mount(ma, flags);
return (error);
}
static int
portal_cmount(struct mntarg *ma, void *data, uint64_t flags)
{
struct portal_args args;
int error;
if (data == NULL)
return (EINVAL);
error = copyin(data, &args, sizeof args);
if (error)
return (error);
ma = mount_argf(ma, "socket", "%d", args.pa_socket);
ma = mount_argsu(ma, "config", args.pa_config, MAXPATHLEN);
error = kernel_mount(ma, flags);
return (error);
}
static int
reiserfs_cmount(struct mntarg *ma, void *data, uint64_t flags)
{
struct reiserfs_args args;
struct export_args exp;
int error;
error = copyin(data, &args, sizeof(args));
if (error)
return (error);
vfs_oexport_conv(&args.export, &exp);
ma = mount_argsu(ma, "from", args.fspec, MAXPATHLEN);
ma = mount_arg(ma, "export", &exp, sizeof(exp));
error = kernel_mount(ma, flags);
return (error);
}
static int nwfs_cmount(struct mntarg *ma, void *data, int flags)
{
struct nwfs_args args; /* will hold data from mount request */
int error;
error = copyin(data, &args, sizeof(struct nwfs_args));
if (error)
return (error);
/*
* XXX: cheap cop-out here, args contains a structure I don't
* XXX: know how we should handle, and I don't see any immediate
* XXX: prospect of avoiding a mount_nwfs(8) binary anyway.
*/
ma = mount_arg(ma, "nwfs_args", &args, sizeof args);
error = kernel_mount(ma, flags);
return (error);
}
static int vboxvfs_cmount(struct mntarg *ma, void * data, int flags, struct thread *td)
{
struct vboxvfs_mount_info args;
int rc = 0;
printf("%s: Enter\n", __FUNCTION__);
rc = copyin(data, &args, sizeof(struct vboxvfs_mount_info));
if (rc)
return rc;
ma = mount_argf(ma, "uid", "%d", args.uid);
ma = mount_argf(ma, "gid", "%d", args.gid);
ma = mount_arg(ma, "from", args.name, -1);
rc = kernel_mount(ma, flags);
printf("%s: Leave rc=%d\n", __FUNCTION__, rc);
return rc;
}
static int
afs_cmount(struct mntarg *ma, void *data, int flags, struct thread *td)
{
return kernel_mount(ma, flags);
}
static int
parse_mount(char **conf)
{
char *errmsg;
struct mntarg *ma;
char *dev, *fs, *opts, *tok;
int delay, error, timeout;
error = parse_token(conf, &tok);
if (error)
return (error);
fs = tok;
error = parse_skipto(&tok, ':');
if (error) {
free(fs, M_TEMP);
return (error);
}
parse_poke(&tok, '\0');
parse_advance(&tok);
dev = tok;
if (root_mount_mddev != -1) {
/* Handle substitution for the md unit number. */
tok = strstr(dev, "md#");
if (tok != NULL)
tok[2] = '0' + root_mount_mddev;
}
/* Parse options. */
error = parse_token(conf, &tok);
opts = (error == 0) ? tok : NULL;
printf("Trying to mount root from %s:%s [%s]...\n", fs, dev,
(opts != NULL) ? opts : "");
errmsg = malloc(ERRMSGL, M_TEMP, M_WAITOK | M_ZERO);
if (vfs_byname(fs) == NULL) {
strlcpy(errmsg, "unknown file system", ERRMSGL);
error = ENOENT;
goto out;
}
if (strcmp(fs, "zfs") != 0 && strstr(fs, "nfs") == NULL &&
dev[0] != '\0' && !parse_mount_dev_present(dev)) {
printf("mountroot: waiting for device %s ...\n", dev);
delay = hz / 10;
timeout = root_mount_timeout * hz;
do {
pause("rmdev", delay);
timeout -= delay;
} while (timeout > 0 && !parse_mount_dev_present(dev));
if (timeout <= 0) {
error = ENODEV;
goto out;
}
}
ma = NULL;
ma = mount_arg(ma, "fstype", fs, -1);
ma = mount_arg(ma, "fspath", "/", -1);
ma = mount_arg(ma, "from", dev, -1);
ma = mount_arg(ma, "errmsg", errmsg, ERRMSGL);
ma = mount_arg(ma, "ro", NULL, 0);
ma = parse_mountroot_options(ma, opts);
error = kernel_mount(ma, MNT_ROOTFS);
out:
if (error) {
printf("Mounting from %s:%s failed with error %d",
fs, dev, error);
if (errmsg[0] != '\0')
printf(": %s", errmsg);
printf(".\n");
}
free(fs, M_TEMP);
free(errmsg, M_TEMP);
if (opts != NULL)
free(opts, M_TEMP);
/* kernel_mount can return -1 on error. */
return ((error < 0) ? EDOOFUS : error);
}
/* ARGSUSED */
static int
nfs_mount(struct mount *mp)
{
struct nfs_args args = {
.version = NFS_ARGSVERSION,
.addr = NULL,
.addrlen = sizeof (struct sockaddr_in),
.sotype = SOCK_STREAM,
.proto = 0,
.fh = NULL,
.fhsize = 0,
.flags = NFSMNT_RESVPORT,
.wsize = NFS_WSIZE,
.rsize = NFS_RSIZE,
.readdirsize = NFS_READDIRSIZE,
.timeo = 10,
.retrans = NFS_RETRANS,
.maxgrouplist = NFS_MAXGRPS,
.readahead = NFS_DEFRAHEAD,
.wcommitsize = 0, /* was: NQ_DEFLEASE */
.deadthresh = NFS_MAXDEADTHRESH, /* was: NQ_DEADTHRESH */
.hostname = NULL,
/* args version 4 */
.acregmin = NFS_MINATTRTIMO,
.acregmax = NFS_MAXATTRTIMO,
.acdirmin = NFS_MINDIRATTRTIMO,
.acdirmax = NFS_MAXDIRATTRTIMO,
};
int error, ret, has_nfs_args_opt;
int has_addr_opt, has_fh_opt, has_hostname_opt;
struct sockaddr *nam;
struct vnode *vp;
char hst[MNAMELEN];
size_t len;
u_char nfh[NFSX_V3FHMAX];
char *opt;
int nametimeo = NFS_DEFAULT_NAMETIMEO;
int negnametimeo = NFS_DEFAULT_NEGNAMETIMEO;
has_nfs_args_opt = 0;
has_addr_opt = 0;
has_fh_opt = 0;
has_hostname_opt = 0;
if (vfs_filteropt(mp->mnt_optnew, nfs_opts)) {
error = EINVAL;
goto out;
}
if ((mp->mnt_flag & (MNT_ROOTFS | MNT_UPDATE)) == MNT_ROOTFS) {
error = nfs_mountroot(mp);
goto out;
}
/*
* The old mount_nfs program passed the struct nfs_args
* from userspace to kernel. The new mount_nfs program
* passes string options via nmount() from userspace to kernel
* and we populate the struct nfs_args in the kernel.
*/
if (vfs_getopt(mp->mnt_optnew, "nfs_args", NULL, NULL) == 0) {
error = vfs_copyopt(mp->mnt_optnew, "nfs_args", &args,
sizeof args);
if (error)
goto out;
if (args.version != NFS_ARGSVERSION) {
error = EPROGMISMATCH;
goto out;
}
has_nfs_args_opt = 1;
}
if (vfs_getopt(mp->mnt_optnew, "dumbtimer", NULL, NULL) == 0)
args.flags |= NFSMNT_DUMBTIMR;
if (vfs_getopt(mp->mnt_optnew, "noconn", NULL, NULL) == 0)
args.flags |= NFSMNT_NOCONN;
if (vfs_getopt(mp->mnt_optnew, "conn", NULL, NULL) == 0)
args.flags |= NFSMNT_NOCONN;
if (vfs_getopt(mp->mnt_optnew, "nolockd", NULL, NULL) == 0)
args.flags |= NFSMNT_NOLOCKD;
if (vfs_getopt(mp->mnt_optnew, "lockd", NULL, NULL) == 0)
args.flags &= ~NFSMNT_NOLOCKD;
if (vfs_getopt(mp->mnt_optnew, "intr", NULL, NULL) == 0)
args.flags |= NFSMNT_INT;
if (vfs_getopt(mp->mnt_optnew, "rdirplus", NULL, NULL) == 0)
args.flags |= NFSMNT_RDIRPLUS;
if (vfs_getopt(mp->mnt_optnew, "resvport", NULL, NULL) == 0)
args.flags |= NFSMNT_RESVPORT;
if (vfs_getopt(mp->mnt_optnew, "noresvport", NULL, NULL) == 0)
args.flags &= ~NFSMNT_RESVPORT;
if (vfs_getopt(mp->mnt_optnew, "soft", NULL, NULL) == 0)
args.flags |= NFSMNT_SOFT;
if (vfs_getopt(mp->mnt_optnew, "hard", NULL, NULL) == 0)
args.flags &= ~NFSMNT_SOFT;
if (vfs_getopt(mp->mnt_optnew, "mntudp", NULL, NULL) == 0)
args.sotype = SOCK_DGRAM;
if (vfs_getopt(mp->mnt_optnew, "udp", NULL, NULL) == 0)
args.sotype = SOCK_DGRAM;
if (vfs_getopt(mp->mnt_optnew, "tcp", NULL, NULL) == 0)
args.sotype = SOCK_STREAM;
if (vfs_getopt(mp->mnt_optnew, "nfsv3", NULL, NULL) == 0)
args.flags |= NFSMNT_NFSV3;
if (vfs_getopt(mp->mnt_optnew, "nocto", NULL, NULL) == 0)
args.flags |= NFSMNT_NOCTO;
if (vfs_getopt(mp->mnt_optnew, "readdirsize", (void **)&opt, NULL) == 0) {
if (opt == NULL) {
vfs_mount_error(mp, "illegal readdirsize");
error = EINVAL;
goto out;
}
ret = sscanf(opt, "%d", &args.readdirsize);
if (ret != 1 || args.readdirsize <= 0) {
vfs_mount_error(mp, "illegal readdirsize: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_READDIRSIZE;
}
if (vfs_getopt(mp->mnt_optnew, "readahead", (void **)&opt, NULL) == 0) {
if (opt == NULL) {
vfs_mount_error(mp, "illegal readahead");
error = EINVAL;
goto out;
}
ret = sscanf(opt, "%d", &args.readahead);
if (ret != 1 || args.readahead <= 0) {
vfs_mount_error(mp, "illegal readahead: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_READAHEAD;
}
if (vfs_getopt(mp->mnt_optnew, "wsize", (void **)&opt, NULL) == 0) {
if (opt == NULL) {
vfs_mount_error(mp, "illegal wsize");
error = EINVAL;
goto out;
}
ret = sscanf(opt, "%d", &args.wsize);
if (ret != 1 || args.wsize <= 0) {
vfs_mount_error(mp, "illegal wsize: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_WSIZE;
}
if (vfs_getopt(mp->mnt_optnew, "rsize", (void **)&opt, NULL) == 0) {
if (opt == NULL) {
vfs_mount_error(mp, "illegal rsize");
error = EINVAL;
goto out;
}
ret = sscanf(opt, "%d", &args.rsize);
if (ret != 1 || args.rsize <= 0) {
vfs_mount_error(mp, "illegal wsize: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_RSIZE;
}
if (vfs_getopt(mp->mnt_optnew, "retrans", (void **)&opt, NULL) == 0) {
if (opt == NULL) {
vfs_mount_error(mp, "illegal retrans");
error = EINVAL;
goto out;
}
ret = sscanf(opt, "%d", &args.retrans);
if (ret != 1 || args.retrans <= 0) {
vfs_mount_error(mp, "illegal retrans: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_RETRANS;
}
if (vfs_getopt(mp->mnt_optnew, "acregmin", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.acregmin);
if (ret != 1 || args.acregmin < 0) {
vfs_mount_error(mp, "illegal acregmin: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_ACREGMIN;
}
if (vfs_getopt(mp->mnt_optnew, "acregmax", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.acregmax);
if (ret != 1 || args.acregmax < 0) {
vfs_mount_error(mp, "illegal acregmax: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_ACREGMAX;
}
if (vfs_getopt(mp->mnt_optnew, "acdirmin", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.acdirmin);
if (ret != 1 || args.acdirmin < 0) {
vfs_mount_error(mp, "illegal acdirmin: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_ACDIRMIN;
}
if (vfs_getopt(mp->mnt_optnew, "acdirmax", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.acdirmax);
if (ret != 1 || args.acdirmax < 0) {
vfs_mount_error(mp, "illegal acdirmax: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_ACDIRMAX;
}
if (vfs_getopt(mp->mnt_optnew, "wcommitsize", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.wcommitsize);
if (ret != 1 || args.wcommitsize < 0) {
vfs_mount_error(mp, "illegal wcommitsize: %s", opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_WCOMMITSIZE;
}
if (vfs_getopt(mp->mnt_optnew, "deadthresh", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.deadthresh);
if (ret != 1 || args.deadthresh <= 0) {
vfs_mount_error(mp, "illegal deadthresh: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_DEADTHRESH;
}
if (vfs_getopt(mp->mnt_optnew, "timeout", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.timeo);
if (ret != 1 || args.timeo <= 0) {
vfs_mount_error(mp, "illegal timeout: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_TIMEO;
}
if (vfs_getopt(mp->mnt_optnew, "maxgroups", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &args.maxgrouplist);
if (ret != 1 || args.maxgrouplist <= 0) {
vfs_mount_error(mp, "illegal maxgroups: %s",
opt);
error = EINVAL;
goto out;
}
args.flags |= NFSMNT_MAXGRPS;
}
if (vfs_getopt(mp->mnt_optnew, "nametimeo", (void **)&opt, NULL) == 0) {
ret = sscanf(opt, "%d", &nametimeo);
if (ret != 1 || nametimeo < 0) {
vfs_mount_error(mp, "illegal nametimeo: %s", opt);
error = EINVAL;
goto out;
}
}
if (vfs_getopt(mp->mnt_optnew, "negnametimeo", (void **)&opt, NULL)
== 0) {
ret = sscanf(opt, "%d", &negnametimeo);
if (ret != 1 || negnametimeo < 0) {
vfs_mount_error(mp, "illegal negnametimeo: %s",
opt);
error = EINVAL;
goto out;
}
}
if (vfs_getopt(mp->mnt_optnew, "addr", (void **)&args.addr,
&args.addrlen) == 0) {
has_addr_opt = 1;
if (args.addrlen > SOCK_MAXADDRLEN) {
error = ENAMETOOLONG;
goto out;
}
nam = malloc(args.addrlen, M_SONAME,
M_WAITOK);
bcopy(args.addr, nam, args.addrlen);
nam->sa_len = args.addrlen;
}
if (vfs_getopt(mp->mnt_optnew, "fh", (void **)&args.fh,
&args.fhsize) == 0) {
has_fh_opt = 1;
}
if (vfs_getopt(mp->mnt_optnew, "hostname", (void **)&args.hostname,
NULL) == 0) {
has_hostname_opt = 1;
}
if (args.hostname == NULL) {
vfs_mount_error(mp, "Invalid hostname");
error = EINVAL;
goto out;
}
if (args.fhsize < 0 || args.fhsize > NFSX_V3FHMAX) {
vfs_mount_error(mp, "Bad file handle");
error = EINVAL;
goto out;
}
if (mp->mnt_flag & MNT_UPDATE) {
struct nfsmount *nmp = VFSTONFS(mp);
if (nmp == NULL) {
error = EIO;
goto out;
}
/*
* If a change from TCP->UDP is done and there are thread(s)
* that have I/O RPC(s) in progress with a tranfer size
* greater than NFS_MAXDGRAMDATA, those thread(s) will be
* hung, retrying the RPC(s) forever. Usually these threads
* will be seen doing an uninterruptible sleep on wait channel
* "newnfsreq" (truncated to "newnfsre" by procstat).
*/
if (args.sotype == SOCK_DGRAM && nmp->nm_sotype == SOCK_STREAM)
tprintf(curthread->td_proc, LOG_WARNING,
"Warning: mount -u that changes TCP->UDP can result in hung threads\n");
/*
* When doing an update, we can't change from or to
* v3, switch lockd strategies or change cookie translation
*/
args.flags = (args.flags &
~(NFSMNT_NFSV3 | NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/)) |
(nmp->nm_flag &
(NFSMNT_NFSV3 | NFSMNT_NOLOCKD /*|NFSMNT_XLATECOOKIE*/));
nfs_decode_args(mp, nmp, &args, NULL);
goto out;
}
/*
* Make the nfs_ip_paranoia sysctl serve as the default connection
* or no-connection mode for those protocols that support
* no-connection mode (the flag will be cleared later for protocols
* that do not support no-connection mode). This will allow a client
* to receive replies from a different IP then the request was
* sent to. Note: default value for nfs_ip_paranoia is 1 (paranoid),
* not 0.
*/
if (nfs_ip_paranoia == 0)
args.flags |= NFSMNT_NOCONN;
if (has_nfs_args_opt) {
/*
* In the 'nfs_args' case, the pointers in the args
* structure are in userland - we copy them in here.
*/
if (!has_fh_opt) {
error = copyin((caddr_t)args.fh, (caddr_t)nfh,
args.fhsize);
if (error) {
goto out;
}
args.fh = nfh;
}
if (!has_hostname_opt) {
error = copyinstr(args.hostname, hst, MNAMELEN-1, &len);
if (error) {
goto out;
}
bzero(&hst[len], MNAMELEN - len);
args.hostname = hst;
}
if (!has_addr_opt) {
/* sockargs() call must be after above copyin() calls */
error = getsockaddr(&nam, (caddr_t)args.addr,
args.addrlen);
if (error) {
goto out;
}
}
} else if (has_addr_opt == 0) {
vfs_mount_error(mp, "No server address");
error = EINVAL;
goto out;
}
error = mountnfs(&args, mp, nam, args.hostname, &vp,
curthread->td_ucred, nametimeo, negnametimeo);
out:
if (!error) {
MNT_ILOCK(mp);
mp->mnt_kern_flag |= MNTK_LOOKUP_SHARED;
MNT_IUNLOCK(mp);
}
return (error);
}
/*
* VFS Operations.
*
* mount system call
* It seems a bit dumb to copyinstr() the host and path here and then
* bcopy() them in mountnfs(), but I wanted to detect errors before
* doing the sockargs() call because sockargs() allocates an mbuf and
* an error after that means that I have to release the mbuf.
*/
/* ARGSUSED */
static int
nfs_cmount(struct mntarg *ma, void *data, uint64_t flags)
{
int error;
struct nfs_args args;
error = copyin(data, &args, sizeof (struct nfs_args));
if (error)
return error;
ma = mount_arg(ma, "nfs_args", &args, sizeof args);
error = kernel_mount(ma, flags);
return (error);
}
/*
* Compatibility shim for old mount(2) system call.
*/
int
fdesc_cmount(struct mntarg *ma, void *data, uint64_t flags)
{
return kernel_mount(ma, flags);
}
