Re: [PATCH 4/5] nfs-utils: switch gssd to use standard function for getting an RPC client

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On Apr 5, 2009, at 9:43 AM, Jeff Layton wrote:
We already have a common function for setting up an RPC client. Switch
gssd to use it.

Maybe this is a nit, but I would like a stronger justification... like "switch to a function that can support IPv6".

Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx>
---
utils/gssd/gssd_proc.c | 53 ++++++++++++++++++++ +--------------------------
1 files changed, 24 insertions(+), 29 deletions(-)

diff --git a/utils/gssd/gssd_proc.c b/utils/gssd/gssd_proc.c
index bebefe7..1f7dadd 100644
--- a/utils/gssd/gssd_proc.c
+++ b/utils/gssd/gssd_proc.c
@@ -72,6 +72,7 @@
#include "gss_util.h"
#include "krb5_util.h"
#include "context.h"
+#include "nfsrpc.h"

/*
 * pollarray:
@@ -624,10 +625,10 @@ int create_auth_rpc_client(struct clnt_info *clp,
	int			retval = -1;
	OM_uint32		min_stat;
	char			rpc_errmsg[1024];
-	int			sockp = RPC_ANYSOCK;
-	int			sendsz = 32768, recvsz = 32768;
	int			protocol;
+	struct timeval		timeout = {5, 0};
	struct sockaddr		*addr = (struct sockaddr *) &clp->addr;
+	socklen_t		salen;

	/* Create the context as the user (not as root) */
	save_uid = geteuid();
@@ -695,33 +696,27 @@ int create_auth_rpc_client(struct clnt_info *clp,
	if (!populate_port(addr, clp->servicename, protocol))
		goto out_fail;

-	if (protocol == IPPROTO_TCP) {
-		if ((rpc_clnt = clnttcp_create(
-					(struct sockaddr_in *) &clp->addr,
-					clp->prog, clp->vers, &sockp,
-					sendsz, recvsz)) == NULL) {
-			snprintf(rpc_errmsg, sizeof(rpc_errmsg),
-				 "WARNING: can't create tcp rpc_clnt "
-				 "for server %s for user with uid %d",
-				 clp->servername, uid);
-			printerr(0, "%s\n",
-				 clnt_spcreateerror(rpc_errmsg));
-			goto out_fail;
-		}
-	} else if (protocol == IPPROTO_UDP) {
-		const struct timeval timeout = {5, 0};
-		if ((rpc_clnt = clntudp_bufcreate(
-					(struct sockaddr_in *) &clp->addr,
-					clp->prog, clp->vers, timeout,
-					&sockp, sendsz, recvsz)) == NULL) {
-			snprintf(rpc_errmsg, sizeof(rpc_errmsg),
-				 "WARNING: can't create udp rpc_clnt "
-				 "for server %s for user with uid %d",
-				 clp->servername, uid);
-			printerr(0, "%s\n",
-				 clnt_spcreateerror(rpc_errmsg));
-			goto out_fail;
-		}
+	switch (addr->sa_family) {
+	case AF_INET:
+		salen = sizeof(struct sockaddr_in);
+		break;
+	default:
+		printerr(1, "ERROR: Unknown address family %d\n",
+			 addr->sa_family);
+		goto out_fail;
+	}
+
+	rpc_clnt = nfs_get_rpcclient(addr, salen, protocol, clp->prog,
+				     clp->vers, &timeout);
+	if (!rpc_clnt) {
+		snprintf(rpc_errmsg, sizeof(rpc_errmsg),
+			 "WARNING: can't create %s rpc_clnt to server %s for "
+			 "user with uid %d",
+			 protocol == IPPROTO_TCP ? "tcp" : "udp",
+			 clp->servername, uid);
+		printerr(0, "%s\n",
+			 clnt_spcreateerror(rpc_errmsg));
+		goto out_fail;
	}

	printerr(2, "creating context with server %s\n", clp->servicename);

--
Chuck Lever
chuck[dot]lever[at]oracle[dot]com
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