X-Git-Url: https://git.decadent.org.uk/gitweb/?a=blobdiff_plain;f=utils%2Fmount%2Fnetwork.c;h=565330281c940f94a5ab03bd7c945778934d1398;hb=897f581874255d363e00ef94534f6fced8dd2ba2;hp=ab8cfb751a021989721074486f8c87791415e280;hpb=a574c7558e33f172b6dfee53ee8df9e59c84c7b5;p=nfs-utils.git

diff --git a/utils/mount/network.c b/utils/mount/network.c
index ab8cfb7..5653302 100644
--- a/utils/mount/network.c
+++ b/utils/mount/network.c
@@ -38,7 +38,6 @@
 #include "xcommon.h"
 #include "mount.h"
 #include "nls.h"
-#include "nfsumount.h"
 #include "nfs_mount.h"
 #include "mount_constants.h"
 #include "network.h"
@@ -136,8 +135,23 @@ unsigned short getport(struct sockaddr_in *saddr, unsigned long prog,
 	struct pmap parms;
 	enum clnt_stat stat;
 
-	saddr->sin_port = htons (PMAPPORT);
-	socket = get_socket(saddr, prot, FALSE, FALSE);
+	saddr->sin_port = htons(PMAPPORT);
+
+	/*
+	 * Try to get a socket with a non-privileged port.
+	 * clnt*create() will create one anyway if this
+	 * fails.
+	 */
+	socket = get_socket(saddr, proto, FALSE, FALSE);
+	if (socket == RPC_ANYSOCK) {
+		if (proto == IPPROTO_TCP && errno == ETIMEDOUT) {
+			/*
+			 * TCP SYN timed out, so exit now.
+			 */
+			rpc_createerr.cf_stat = RPC_TIMEDOUT;
+		}
+		return 0;
+	}
 
 	switch (prot) {
 	case IPPROTO_UDP:
@@ -245,7 +259,7 @@ out_ok:
 	return 1;
 }
 
-int probe_nfsport(clnt_addr_t *nfs_server)
+static int probe_nfsport(clnt_addr_t *nfs_server)
 {
 	struct pmap *pmap = &nfs_server->pmap;
 
@@ -258,7 +272,7 @@ int probe_nfsport(clnt_addr_t *nfs_server)
 		return probe_port(nfs_server, probe_nfs2_only, probe_udp_only);
 }
 
-int probe_mntport(clnt_addr_t *mnt_server)
+static int probe_mntport(clnt_addr_t *mnt_server)
 {
 	struct pmap *pmap = &mnt_server->pmap;
 
@@ -362,3 +376,47 @@ int start_statd(void)
 
 	return 0;
 }
+
+/*
+ * nfs_call_umount - ask the server to remove a share from it's rmtab
+ * @mnt_server: address of RPC MNT program server
+ * @argp: directory path of share to "unmount"
+ *
+ * Returns one if the unmount call succeeded; zero if the unmount
+ * failed for any reason.
+ *
+ * Note that a side effect of calling this function is that rpccreateerr
+ * is set.
+ */
+int nfs_call_umount(clnt_addr_t *mnt_server, dirpath *argp)
+{
+	CLIENT *clnt;
+	enum clnt_stat res = 0;
+	int msock;
+
+	switch (mnt_server->pmap.pm_vers) {
+	case 3:
+	case 2:
+	case 1:
+		if (!probe_mntport(mnt_server))
+			return 0;
+		clnt = mnt_openclnt(mnt_server, &msock);
+		if (!clnt)
+			return 0;
+		res = clnt_call(clnt, MOUNTPROC_UMNT,
+				(xdrproc_t)xdr_dirpath, (caddr_t)argp,
+				(xdrproc_t)xdr_void, NULL,
+				TIMEOUT);
+		mnt_closeclnt(clnt, msock);
+		if (res == RPC_SUCCESS)
+			return 1;
+		break;
+	default:
+		res = RPC_SUCCESS;
+		break;
+	}
+
+	if (res == RPC_SUCCESS)
+		return 1;
+	return 0;
+}