#include "xio.h"
#define EXPORT_DEFAULT_FLAGS \
- (NFSEXP_READONLY|NFSEXP_ROOTSQUASH|NFSEXP_GATHERED_WRITES)
+ (NFSEXP_READONLY|NFSEXP_ROOTSQUASH|NFSEXP_GATHERED_WRITES|NFSEXP_NOSUBTREECHECK)
int export_errno;
static char *efname = NULL;
static XFILE *efp = NULL;
static int first;
+static int has_default_opts, has_default_subtree_opts;
static int *squids = NULL, nsquids = 0,
*sqgids = NULL, nsqgids = 0;
static int getexport(char *exp, int len);
static int getpath(char *path, int len);
-static int parseopts(char *cp, struct exportent *ep, int warn);
+static int parseopts(char *cp, struct exportent *ep, int warn, int *had_subtree_opt_ptr);
static int parsesquash(char *list, int **idp, int *lenp, char **ep);
static int parsenum(char **cpp);
static int parsemaptype(char *type);
struct exportent *
getexportent(int fromkernel, int fromexports)
{
- static struct exportent ee;
+ static struct exportent ee, def_ee;
char exp[512], *hostname;
char rpath[MAXPATHLEN+1];
char *opt, *sp;
return NULL;
freesquash();
- ee.e_flags = EXPORT_DEFAULT_FLAGS;
- /* some kernels assume the default is sync rather than
- * async. More recent kernels always report one or other,
- * but this test makes sure we assume same as kernel
- * Ditto for wgather
- */
- if (fromkernel) {
- ee.e_flags &= ~NFSEXP_ASYNC;
- ee.e_flags &= ~NFSEXP_GATHERED_WRITES;
- }
- ee.e_maptype = CLE_MAP_IDENT;
- ee.e_anonuid = 65534;
- ee.e_anongid = 65534;
- ee.e_squids = NULL;
- ee.e_sqgids = NULL;
- ee.e_mountpoint = NULL;
- ee.e_nsquids = 0;
- ee.e_nsqgids = 0;
if (first || (ok = getexport(exp, sizeof(exp))) == 0) {
- ok = getpath(ee.e_path, sizeof(ee.e_path));
+ has_default_opts = 0;
+ has_default_subtree_opts = 0;
+
+ def_ee.e_flags = EXPORT_DEFAULT_FLAGS;
+ /* some kernels assume the default is sync rather than
+ * async. More recent kernels always report one or other,
+ * but this test makes sure we assume same as kernel
+ * Ditto for wgather
+ */
+ if (fromkernel) {
+ def_ee.e_flags &= ~NFSEXP_ASYNC;
+ def_ee.e_flags &= ~NFSEXP_GATHERED_WRITES;
+ }
+ def_ee.e_maptype = CLE_MAP_IDENT;
+ def_ee.e_anonuid = 65534;
+ def_ee.e_anongid = 65534;
+ def_ee.e_squids = NULL;
+ def_ee.e_sqgids = NULL;
+ def_ee.e_mountpoint = NULL;
+ def_ee.e_fslocmethod = FSLOC_NONE;
+ def_ee.e_fslocdata = NULL;
+ def_ee.e_nsquids = 0;
+ def_ee.e_nsqgids = 0;
+
+ ok = getpath(def_ee.e_path, sizeof(def_ee.e_path));
if (ok <= 0)
return NULL;
- strncpy (ee.m_path, ee.e_path, sizeof (ee.m_path) - 1);
- ee.m_path [sizeof (ee.m_path) - 1] = '\0';
+
+ strncpy (def_ee.m_path, def_ee.e_path, sizeof (def_ee.m_path) - 1);
+ def_ee.m_path [sizeof (def_ee.m_path) - 1] = '\0';
ok = getexport(exp, sizeof(exp));
}
if (ok < 0) {
return NULL;
}
first = 0;
+
+ /* Check for default options */
+ if (exp[0] == '-') {
+ if (parseopts(exp + 1, &def_ee, 0, &has_default_subtree_opts) < 0)
+ return NULL;
+
+ has_default_opts = 1;
+
+ ok = getexport(exp, sizeof(exp));
+ if (ok < 0) {
+ xlog(L_ERROR, "expected client(options...)");
+ export_errno = EINVAL;
+ return NULL;
+ }
+ }
+
+ ee = def_ee;
/* Check for default client */
if (ok == 0)
}
*sp = '\0';
} else {
- xlog(L_WARNING, "No options for %s %s: suggest %s(sync) to avoid warning", ee.e_path, exp, exp);
+ if (!has_default_opts)
+ xlog(L_WARNING, "No options for %s %s: suggest %s(sync) to avoid warning", ee.e_path, exp, exp);
}
if (strlen(hostname) >= sizeof(ee.e_hostname)) {
syntaxerr("client name too long");
strncpy(ee.e_hostname, hostname, sizeof (ee.e_hostname) - 1);
ee.e_hostname[sizeof (ee.e_hostname) - 1] = '\0';
- if (parseopts(opt, &ee, fromexports) < 0)
+ if (parseopts(opt, &ee, fromexports && !has_default_subtree_opts, NULL) < 0)
return NULL;
/* resolve symlinks */
if (ep->e_flags & NFSEXP_FSID) {
fprintf(fp, "fsid=%d,", ep->e_fsid);
}
+ if (ep->e_uuid)
+ fprintf(fp, "fsid=%s,", ep->e_uuid);
if (ep->e_mountpoint)
fprintf(fp, "mountpoint%s%s,",
ep->e_mountpoint[0]?"=":"", ep->e_mountpoint);
-
+ switch (ep->e_fslocmethod) {
+ case FSLOC_NONE:
+ break;
+ case FSLOC_REFER:
+ fprintf(fp, "refer=%s,", ep->e_fslocdata);
+ break;
+ case FSLOC_REPLICA:
+ fprintf(fp, "replicas=%s,", ep->e_fslocdata);
+ break;
+ case FSLOC_STUB:
+ fprintf(fp, "fsloc=stub,");
+ break;
+ default:
+ xlog(L_ERROR, "unknown fsloc method for %s:%s",
+ ep->e_hostname, ep->e_path);
+ }
fprintf(fp, "mapping=");
switch (ep->e_maptype) {
case CLE_MAP_IDENT:
}
if (src->e_mountpoint)
dst->e_mountpoint = strdup(src->e_mountpoint);
+ if (src->e_fslocdata)
+ dst->e_fslocdata = strdup(src->e_fslocdata);
}
struct exportent *
ee.e_squids = NULL;
ee.e_sqgids = NULL;
ee.e_mountpoint = NULL;
+ ee.e_fslocmethod = FSLOC_NONE;
+ ee.e_fslocdata = NULL;
ee.e_nsquids = 0;
ee.e_nsqgids = 0;
+ ee.e_uuid = NULL;
if (strlen(hname) >= sizeof(ee.e_hostname)) {
xlog(L_WARNING, "client name %s too long", hname);
ee.e_path[sizeof (ee.e_path) - 1] = '\0';
strncpy (ee.m_path, ee.e_path, sizeof (ee.m_path) - 1);
ee.m_path [sizeof (ee.m_path) - 1] = '\0';
- if (parseopts(options, &ee, 0) < 0)
+ if (parseopts(options, &ee, 0, NULL) < 0)
return NULL;
return ⅇ
}
int
updateexportent(struct exportent *eep, char *options)
{
- if (parseopts(options, eep, 0) < 0)
+ if (parseopts(options, eep, 0, NULL) < 0)
return 0;
return 1;
}
+
+static int valid_uuid(char *uuid)
+{
+ /* must have 32 hex digits */
+ int cnt;
+ for (cnt = 0 ; *uuid; uuid++)
+ if (isxdigit(*uuid))
+ cnt++;
+ return cnt == 32;
+}
+
/*
* Parse option string pointed to by cp and set mount options accordingly.
*/
static int
-parseopts(char *cp, struct exportent *ep, int warn)
+parseopts(char *cp, struct exportent *ep, int warn, int *had_subtree_opt_ptr)
{
int had_subtree_opt = 0;
char *flname = efname?efname:"command line";
}
} else if (strncmp(opt, "fsid=", 5) == 0) {
char *oe;
- ep->e_fsid = strtoul(opt+5, &oe, 0);
- if (opt[5]=='\0' || *oe != '\0') {
- xlog(L_ERROR, "%s: %d: bad fsid \"%s\"\n",
- flname, flline, opt);
- goto bad_option;
+ if (strcmp(opt+5, "root") == 0) {
+ ep->e_fsid = 0;
+ ep->e_flags |= NFSEXP_FSID;
+ } else {
+ ep->e_fsid = strtoul(opt+5, &oe, 0);
+ if (opt[5]!='\0' && *oe == '\0')
+ ep->e_flags |= NFSEXP_FSID;
+ else if (valid_uuid(opt+5))
+ ep->e_uuid = strdup(opt+7);
+ else {
+ xlog(L_ERROR, "%s: %d: bad fsid \"%s\"\n",
+ flname, flline, opt);
+ goto bad_option;
+ }
}
- ep->e_flags |= NFSEXP_FSID;
} else if (strcmp(opt, "mountpoint")==0 ||
strcmp(opt, "mp") == 0 ||
strncmp(opt, "mountpoint=", 11)==0 ||
ep->e_mountpoint = strdup(mp+1);
else
ep->e_mountpoint = strdup("");
+ } else if (strncmp(opt, "fsloc=", 6) == 0) {
+ if (strcmp(opt+6, "stub") == 0)
+ ep->e_fslocmethod = FSLOC_STUB;
+ else {
+ xlog(L_ERROR, "%s:%d: bad option %s\n",
+ flname, flline, opt);
+ goto bad_option;
+ }
+ } else if (strncmp(opt, "refer=", 6) == 0) {
+ ep->e_fslocmethod = FSLOC_REFER;
+ ep->e_fslocdata = strdup(opt+6);
+ } else if (strncmp(opt, "replicas=", 9) == 0) {
+ ep->e_fslocmethod = FSLOC_REPLICA;
+ ep->e_fslocdata = strdup(opt+9);
} else {
xlog(L_ERROR, "%s:%d: unknown keyword \"%s\"\n",
flname, flline, opt);
out:
if (warn && !had_subtree_opt)
xlog(L_WARNING, "%s [%d]: Neither 'subtree_check' or 'no_subtree_check' specified for export \"%s:%s\".\n"
- " Assuming default behaviour ('subtree_check').\n"
- " NOTE: this default will change with nfs-utils version 1.1.0\n",
+ " Assuming default behaviour ('no_subtree_check').\n"
+ " NOTE: this default has changed since nfs-utils version 1.0.x\n",
flname, flline,
ep->e_hostname, ep->e_path);
+ if (had_subtree_opt_ptr)
+ *had_subtree_opt_ptr = had_subtree_opt;
return 1;
}
projects / nfs-utils.git / blobdiff