#include <sys/types.h>
#include <sys/socket.h>
#include <sys/wait.h>
+#include <sys/stat.h>
#include <netinet/in.h>
#include <rpc/rpc.h>
#include <rpc/pmap_prot.h>
/*
* Returns TRUE if @protocol contains a valid value for this option,
- * or FALSE if the option was specified with an invalid value.
+ * or FALSE if the option was specified with an invalid value. On
+ * error, errno is set.
*/
int
nfs_nfs_protocol(struct mount_options *options, unsigned long *protocol)
return 1;
case 2: /* proto */
option = po_get(options, "proto");
- if (option != NULL)
- return nfs_get_proto(option, &family, protocol);
+ if (option != NULL) {
+ if (!nfs_get_proto(option, &family, protocol)) {
+ errno = EPROTONOSUPPORT;
+ return 0;
+ }
+ return 1;
+ }
}
/*
return 1;
}
+#ifdef IPV6_SUPPORTED
+sa_family_t config_default_family = AF_UNSPEC;
+
+static int
+nfs_verify_family(sa_family_t family)
+{
+ return 1;
+}
+#else /* IPV6_SUPPORTED */
+sa_family_t config_default_family = AF_INET;
+
+static int
+nfs_verify_family(sa_family_t family)
+{
+ if (family != AF_INET)
+ return 0;
+
+ return 1;
+}
+#endif /* IPV6_SUPPORTED */
+
/*
* Returns TRUE and fills in @family if a valid NFS protocol option
- * is found, or FALSE if the option was specified with an invalid value.
+ * is found, or FALSE if the option was specified with an invalid value
+ * or if the protocol family isn't supported. On error, errno is set.
*/
int nfs_nfs_proto_family(struct mount_options *options,
sa_family_t *family)
{
unsigned long protocol;
char *option;
-
-#ifdef IPV6_SUPPORTED
- *family = AF_UNSPEC;
-#else
- *family = AF_INET;
-#endif
+ sa_family_t tmp_family = config_default_family;
switch (po_rightmost(options, nfs_transport_opttbl)) {
case 0: /* udp */
- return 1;
case 1: /* tcp */
+ /* for compatibility; these are always AF_INET */
+ *family = AF_INET;
return 1;
case 2: /* proto */
option = po_get(options, "proto");
- if (option != NULL)
- return nfs_get_proto(option, family, &protocol);
+ if (option != NULL &&
+ !nfs_get_proto(option, &tmp_family, &protocol))
+ goto out_err;
}
- /*
- * NFS transport protocol wasn't specified. Return the
- * default address family.
- */
+ if (!nfs_verify_family(tmp_family))
+ goto out_err;
+ *family = tmp_family;
return 1;
+out_err:
+ errno = EAFNOSUPPORT;
+ return 0;
}
/*
/*
* Returns TRUE if @protocol contains a valid value for this option,
- * or FALSE if the option was specified with an invalid value.
+ * or FALSE if the option was specified with an invalid value. On
+ * error, errno is set.
*/
static int
nfs_mount_protocol(struct mount_options *options, unsigned long *protocol)
char *option;
option = po_get(options, "mountproto");
- if (option != NULL)
- return nfs_get_proto(option, &family, protocol);
+ if (option != NULL) {
+ if (!nfs_get_proto(option, &family, protocol)) {
+ errno = EPROTONOSUPPORT;
+ return 0;
+ }
+ return 1;
+ }
/*
* MNT transport protocol wasn't specified. If the NFS
/*
* Returns TRUE and fills in @family if a valid MNT protocol option
- * is found, or FALSE if the option was specified with an invalid value.
+ * is found, or FALSE if the option was specified with an invalid value
+ * or if the protocol family isn't supported. On error, errno is set.
*/
int nfs_mount_proto_family(struct mount_options *options,
sa_family_t *family)
{
unsigned long protocol;
char *option;
-
-#ifdef HAVE_LIBTIRPC
- *family = AF_UNSPEC;
-#else
- *family = AF_INET;
-#endif
+ sa_family_t tmp_family = config_default_family;
option = po_get(options, "mountproto");
- if (option != NULL)
- return nfs_get_proto(option, family, &protocol);
+ if (option != NULL) {
+ if (!nfs_get_proto(option, &tmp_family, &protocol))
+ goto out_err;
+ if (!nfs_verify_family(tmp_family))
+ goto out_err;
+ *family = tmp_family;
+ return 1;
+ }
/*
* MNT transport protocol wasn't specified. If the NFS
* NFS.
*/
return nfs_nfs_proto_family(options, family);
+out_err:
+ errno = EAFNOSUPPORT;
+ return 0;
}
/**