From a513086c2a231f1e6b2e74dd007e7158a07e47a6 Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Thu, 16 Jun 2011 15:39:25 +0200
Subject: s3-smbd: Replace client_id in smbd process.

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
---
 source3/smbd/globals.h |  1 +
 source3/smbd/process.c | 38 ++++++++++++++++++++++++++++++++------
 2 files changed, 33 insertions(+), 6 deletions(-)

(limited to 'source3/smbd')

diff --git a/source3/smbd/globals.h b/source3/smbd/globals.h
index 97d75fd413..2e31c73779 100644
--- a/source3/smbd/globals.h
+++ b/source3/smbd/globals.h
@@ -452,6 +452,7 @@ struct smbd_server_connection {
 	struct client_address client_id;
 	const struct tsocket_address *local_address;
 	const struct tsocket_address *remote_address;
+	const char *remote_hostname;
 	struct messaging_context *msg_ctx;
 	struct {
 		bool got_session;
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index f3f532fbae..6cf793a77f 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -287,7 +287,9 @@ static NTSTATUS receive_smb_raw_talloc_partial_read(TALLOC_CTX *mem_ctx,
 
 	if (!NT_STATUS_IS_OK(status)) {
 		DEBUG(0, ("read_fd_with_timeout failed for client %s read "
-			  "error = %s.\n", sconn->client_id.addr,
+			  "error = %s.\n",
+			  tsocket_address_string(sconn->remote_address,
+						 talloc_tos()),
 			  nt_errstr(status)));
 		return status;
 	}
@@ -453,7 +455,9 @@ static NTSTATUS receive_smb_talloc(TALLOC_CTX *mem_ctx,
 	if (!NT_STATUS_IS_OK(status)) {
 		DEBUG(1, ("read_smb_length_return_keepalive failed for "
 			  "client %s read error = %s.\n",
-			  sconn->client_id.addr, nt_errstr(status)));
+			  tsocket_address_string(sconn->remote_address,
+						 talloc_tos()),
+			  nt_errstr(status)));
 		return status;
 	}
 
@@ -1436,6 +1440,7 @@ static connection_struct *switch_message(uint8 type, struct smb_request *req, in
 	uint16 session_tag;
 	connection_struct *conn = NULL;
 	struct smbd_server_connection *sconn = req->sconn;
+	char *raddr;
 
 	errno = 0;
 
@@ -1560,12 +1565,19 @@ static connection_struct *switch_message(uint8 type, struct smb_request *req, in
 		conn->num_smb_operations++;
 	}
 
+	raddr = tsocket_address_inet_addr_string(sconn->remote_address,
+						 talloc_tos());
+	if (raddr == NULL) {
+		reply_nterror(req, NT_STATUS_NO_MEMORY);
+		return conn;
+	}
+
 	/* does this protocol need to be run as guest? */
 	if ((flags & AS_GUEST)
 	    && (!change_to_guest() ||
 		!allow_access(lp_hostsdeny(-1), lp_hostsallow(-1),
-			      sconn->client_id.name,
-			      sconn->client_id.addr))) {
+			      sconn->remote_hostname,
+			      raddr))) {
 		reply_nterror(req, NT_STATUS_ACCESS_DENIED);
 		return conn;
 	}
@@ -2901,6 +2913,7 @@ void smbd_process(struct smbd_server_connection *sconn)
 	struct tsocket_address *local_address = NULL;
 	struct tsocket_address *remote_address = NULL;
 	const char *remaddr = NULL;
+	char *rhost;
 	int ret;
 
 	if (lp_maxprotocol() == PROTOCOL_SMB2) {
@@ -2980,9 +2993,22 @@ void smbd_process(struct smbd_server_connection *sconn)
 	 * the hosts allow list.
 	 */
 
+	ret = get_remote_hostname(remote_address,
+				  &rhost,
+				  talloc_tos());
+	if (ret < 0) {
+		DEBUG(0,("%s: get_remote_hostname failed - %s\n",
+			__location__, strerror(errno)));
+		exit_server_cleanly("get_remote_hostname failed.\n");
+	}
+	if (strequal(rhost, "UNKNOWN")) {
+		rhost = talloc_strdup(talloc_tos(), remaddr);
+	}
+	sconn->remote_hostname = talloc_move(sconn, &rhost);
+
 	if (!allow_access(lp_hostsdeny(-1), lp_hostsallow(-1),
-			  sconn->client_id.name,
-			  sconn->client_id.addr)) {
+			  sconn->remote_hostname,
+			  remaddr)) {
 		/*
 		 * send a negative session response "not listening on calling
 		 * name"
-- 
cgit