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authorVolker Lendecke <vl@samba.org>2008-10-19 13:44:11 +0200
committerVolker Lendecke <vl@samba.org>2008-10-19 21:51:16 +0200
commitac647d03ac271b0a81b6c8041e2c6b84ada13aca (patch)
tree4de1655e44cb7e1a25e1c137521ed031058d8814 /source3/smbd
parentc0de338394c9e2dd80a3ad06341fe95b1ea169ed (diff)
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Move the global hosts_allow() check out of the processing loop
Diffstat (limited to 'source3/smbd')
-rw-r--r--source3/smbd/process.c41
1 files changed, 22 insertions, 19 deletions
diff --git a/source3/smbd/process.c b/source3/smbd/process.c
index ceffd6f46c..7b0d14968a 100644
--- a/source3/smbd/process.c
+++ b/source3/smbd/process.c
@@ -1534,25 +1534,6 @@ static void process_smb(char *inbuf, size_t nread, size_t unread_bytes, bool enc
DO_PROFILE_INC(smb_count);
- if (trans_num == 0) {
- char addr[INET6_ADDRSTRLEN];
-
- /* on the first packet, check the global hosts allow/ hosts
- deny parameters before doing any parsing of the packet
- passed to us by the client. This prevents attacks on our
- parsing code from hosts not in the hosts allow list */
-
- if (!check_access(smbd_server_fd(), lp_hostsallow(-1),
- lp_hostsdeny(-1))) {
- /* send a negative session response "not listening on calling name" */
- static unsigned char buf[5] = {0x83, 0, 0, 1, 0x81};
- DEBUG( 1, ( "Connection denied from %s\n",
- client_addr(get_client_fd(),addr,sizeof(addr)) ) );
- (void)srv_send_smb(smbd_server_fd(),(char *)buf,false);
- exit_server_cleanly("connection denied");
- }
- }
-
DEBUG( 6, ( "got message type 0x%x of len 0x%x\n", msg_type,
smb_len(inbuf) ) );
DEBUG( 3, ( "Transaction %d of length %d (%u toread)\n", trans_num,
@@ -1893,6 +1874,28 @@ void smbd_process(void)
unsigned int num_smbs = 0;
size_t unread_bytes = 0;
+ char addr[INET6_ADDRSTRLEN];
+
+ /*
+ * Before the first packet, check the global hosts allow/ hosts deny
+ * parameters before doing any parsing of packets passed to us by the
+ * client. This prevents attacks on our parsing code from hosts not in
+ * the hosts allow list.
+ */
+
+ if (!check_access(smbd_server_fd(), lp_hostsallow(-1),
+ lp_hostsdeny(-1))) {
+ /*
+ * send a negative session response "not listening on calling
+ * name"
+ */
+ unsigned char buf[5] = {0x83, 0, 0, 1, 0x81};
+ DEBUG( 1, ("Connection denied from %s\n",
+ client_addr(get_client_fd(),addr,sizeof(addr)) ) );
+ (void)srv_send_smb(smbd_server_fd(),(char *)buf,false);
+ exit_server_cleanly("connection denied");
+ }
+
max_recv = MIN(lp_maxxmit(),BUFFER_SIZE);
while (True) {