static int nfs_do_mount_v4(struct nfsmount_info *mi,
struct sockaddr *sap, socklen_t salen)
{
struct mount_options *options = po_dup(mi->options);
int result = 0;
if (!options) {
errno = ENOMEM;
return result;
}
if (mi->version == 0) {
if (po_contains(options, "mounthost") ||
po_contains(options, "mountaddr") ||
po_contains(options, "mountvers") ||
po_contains(options, "mountproto")) {
/*
* Since these mountd options are set assume version 3
* is wanted so error out with EPROTONOSUPPORT so the
* protocol negation starts with v3.
*/
errno = EPROTONOSUPPORT;
goto out_fail;
}
if (po_append(options, "vers=4") == PO_FAILED) {
errno = EINVAL;
goto out_fail;
}
}
if (!nfs_append_addr_option(sap, salen, options)) {
errno = EINVAL;
goto out_fail;
}
if (!nfs_append_clientaddr_option(sap, salen, options)) {
errno = EINVAL;
goto out_fail;
}
/*
* Update option string to be recorded in /etc/mtab.
*/
if (po_join(options, mi->extra_opts) == PO_FAILED) {
errno = ENOMEM;
goto out_fail;
}
if (verbose)
printf(_("%s: trying text-based options '%s'\n"),
progname, *mi->extra_opts);
result = nfs_sys_mount(mi, options);
out_fail:
po_destroy(options);
return result;
}
static int nfs_do_mount_v3v2(struct nfsmount_info *mi,
struct sockaddr *sap, socklen_t salen,
int checkv4)
{
struct mount_options *options = po_dup(mi->options);
int result = 0;
if (!options) {
errno = ENOMEM;
return result;
}
errno = 0;
if (!nfs_append_addr_option(sap, salen, options)) {
if (errno == 0)
errno = EINVAL;
goto out_fail;
}
if (!nfs_fix_mounthost_option(options, mi->hostname)) {
if (errno == 0)
errno = EINVAL;
goto out_fail;
}
if (!mi->fake && !nfs_verify_lock_option(options)) {
if (errno == 0)
errno = EINVAL;
goto out_fail;
}
/*
* Options we negotiate below may be stale by the time this
* file system is unmounted. In order to force umount.nfs
* to renegotiate with the server, only write the user-
* specified options, and not negotiated options, to /etc/mtab.
*/
if (po_join(options, mi->extra_opts) == PO_FAILED) {
errno = ENOMEM;
goto out_fail;
}
if (verbose)
printf(_("%s: trying text-based options '%s'\n"),
progname, *mi->extra_opts);
if (!nfs_rewrite_pmap_mount_options(options, checkv4, mi->local_ip))
goto out_fail;
result = nfs_sys_mount(mi, options);
out_fail:
po_destroy(options);
return result;
}
/*
* Do the mount(2) system call.
*
* Returns TRUE if successful, otherwise FALSE.
* "errno" is set to reflect the individual error.
*/
static int nfs_sys_mount(struct nfsmount_info *mi, struct mount_options *opts)
{
char *options = NULL;
int result;
if (mi->fake)
return 1;
if (po_join(opts, &options) == PO_FAILED) {
errno = EIO;
return 0;
}
result = mount(mi->spec, mi->node, mi->type,
mi->flags & ~(MS_USER|MS_USERS), options);
free(options);
if (verbose && result) {
int save = errno;
nfs_error(_("%s: mount(2): %s"), progname, strerror(save));
errno = save;
}
return !result;
}
static void pollset_set_add_pollset_set(grpc_exec_ctx *exec_ctx,
grpc_pollset_set *bag,
grpc_pollset_set *item) {
po_join(exec_ctx, &bag->po, &item->po);
}
static void pollset_set_add_pollset(grpc_exec_ctx *exec_ctx,
grpc_pollset_set *pss, grpc_pollset *ps) {
po_join(exec_ctx, &pss->po, &ps->pollable.po);
}
static void pollset_set_add_fd(grpc_exec_ctx *exec_ctx, grpc_pollset_set *pss,
grpc_fd *fd) {
po_join(exec_ctx, &pss->po, &fd->pollable.po);
}