#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>
#include <rpc/pmap_clnt.h>
+#include "sockaddr.h"
#include "xcommon.h"
#include "mount.h"
#include "nls.h"
#define CONNECT_TIMEOUT (20)
#define MOUNT_TIMEOUT (30)
-#if SIZEOF_SOCKLEN_T - 0 == 0
-#define socklen_t unsigned int
-#endif
-
extern int nfs_mount_data_version;
extern char *progname;
extern int verbose;
}
#endif /* MOUNT_CONFIG */
-static int nfs_lookup(const char *hostname, const sa_family_t family,
- struct sockaddr *sap, socklen_t *salen)
+/**
+ * nfs_lookup - resolve hostname to an IPv4 or IPv6 socket address
+ * @hostname: pointer to C string containing DNS hostname to resolve
+ * @family: address family hint
+ * @sap: pointer to buffer to fill with socket address
+ * @len: IN: size of buffer to fill; OUT: size of socket address
+ *
+ * Returns 1 and places a socket address at @sap if successful;
+ * otherwise zero.
+ */
+int nfs_lookup(const char *hostname, const sa_family_t family,
+ struct sockaddr *sap, socklen_t *salen)
{
struct addrinfo *gai_results;
struct addrinfo gai_hint = {
return ret;
}
-/**
- * nfs_name_to_address - resolve hostname to an IPv4 or IPv6 socket address
- * @hostname: pointer to C string containing DNS hostname to resolve
- * @sap: pointer to buffer to fill with socket address
- * @len: IN: size of buffer to fill; OUT: size of socket address
- *
- * Returns 1 and places a socket address at @sap if successful;
- * otherwise zero.
- */
-int nfs_name_to_address(const char *hostname,
- struct sockaddr *sap, socklen_t *salen)
-{
-#ifdef IPV6_SUPPORTED
- return nfs_lookup(hostname, AF_UNSPEC, sap, salen);
-#else /* !IPV6_SUPPORTED */
- return nfs_lookup(hostname, AF_INET, sap, salen);
-#endif /* !IPV6_SUPPORTED */
-}
-
/**
* nfs_gethostbyname - resolve a hostname to an IPv4 address
* @hostname: pointer to a C string containing a DNS hostname
* OUT: length of converted socket address
*
* Convert a presentation format address string to a socket address.
- * Similar to nfs_name_to_address(), but the DNS query is squelched,
- * and won't make any noise if the getaddrinfo() call fails.
+ * Similar to nfs_lookup(), but the DNS query is squelched, and it
+ * won't make any noise if the getaddrinfo() call fails.
*
* Returns 1 and fills in @sap and @salen if successful; otherwise zero.
*
struct pmap *pmap, const unsigned long *versions,
const unsigned int *protos)
{
- struct sockaddr_storage address;
- struct sockaddr *saddr = (struct sockaddr *)&address;
+ union nfs_sockaddr address;
+ struct sockaddr *saddr = &address.sa;
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;
int nfs_advise_umount(const struct sockaddr *sap, const socklen_t salen,
const struct pmap *pmap, const dirpath *argp)
{
- struct sockaddr_storage address;
- struct sockaddr *saddr = (struct sockaddr *)&address;
+ union nfs_sockaddr address;
+ struct sockaddr *saddr = &address.sa;
struct pmap mnt_pmap = *pmap;
struct timeval timeout = {
.tv_sec = MOUNT_TIMEOUT >> 3,
/*
* 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
+ * 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;
+ sa_family_t tmp_family = config_default_family;
+
+ switch (po_rightmost(options, nfs_transport_opttbl)) {
+ case 0: /* udp */
+ 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 &&
+ !nfs_get_proto(option, &tmp_family, &protocol))
+ goto out_err;
+ }
+
+ if (!nfs_verify_family(tmp_family))
+ goto out_err;
+ *family = tmp_family;
+ return 1;
+out_err:
+ errno = EAFNOSUPPORT;
+ return 0;
+}
+
/*
* "mountprog" is supported only by the legacy mount command. The
* kernel mount client does not support this option.
/*
* 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
return 1;
}
+/*
+ * 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
+ * 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;
+ sa_family_t tmp_family = config_default_family;
+
+ option = po_get(options, "mountproto");
+ 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
+ * transport protocol was specified, derive the family
+ * from that; otherwise, return the default family for
+ * NFS.
+ */
+ return nfs_nfs_proto_family(options, family);
+out_err:
+ errno = EAFNOSUPPORT;
+ return 0;
+}
+
/**
* nfs_options2pmap - set up pmap structs based on mount options
* @options: pointer to mount options
projects / nfs-utils.git / blobdiff