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-rw-r--r--source/libsmb/clientgen.c164
1 files changed, 53 insertions, 111 deletions
diff --git a/source/libsmb/clientgen.c b/source/libsmb/clientgen.c
index 4a102097ce8..dae9f4de11a 100644
--- a/source/libsmb/clientgen.c
+++ b/source/libsmb/clientgen.c
@@ -1,5 +1,6 @@
/*
- Unix SMB/CIFS implementation.
+ Unix SMB/Netbios implementation.
+ Version 1.9.
SMB client generic functions
Copyright (C) Andrew Tridgell 1994-1998
@@ -22,10 +23,9 @@
#include "includes.h"
-/****************************************************************************
- Change the port number used to call on.
-****************************************************************************/
-
+/*
+ * Change the port number used to call on
+ */
int cli_set_port(struct cli_state *cli, int port)
{
cli->port = port;
@@ -33,52 +33,17 @@ int cli_set_port(struct cli_state *cli, int port)
}
/****************************************************************************
- Read an smb from a fd ignoring all keepalive packets. Note that the buffer
- *MUST* be of size BUFFER_SIZE+SAFETY_MARGIN.
- The timeout is in milliseconds
-
- This is exactly the same as receive_smb except that it never returns
- a session keepalive packet (just as receive_smb used to do).
- receive_smb was changed to return keepalives as the oplock processing means this call
- should never go into a blocking read.
-****************************************************************************/
-
-static BOOL client_receive_smb(int fd,char *buffer, unsigned int timeout)
-{
- BOOL ret;
-
- for(;;) {
- ret = receive_smb(fd, buffer, timeout);
-
- if (!ret) {
- DEBUG(10,("client_receive_smb failed\n"));
- show_msg(buffer);
- return ret;
- }
-
- /* Ignore session keepalive packets. */
- if(CVAL(buffer,0) != SMBkeepalive)
- break;
- }
- show_msg(buffer);
- return ret;
-}
-
-/****************************************************************************
- Recv an smb.
+recv an smb
****************************************************************************/
-
BOOL cli_receive_smb(struct cli_state *cli)
{
- extern int smb_read_error;
BOOL ret;
/* fd == -1 causes segfaults -- Tom (tom@ninja.nl) */
- if (cli->fd == -1)
- return False;
+ if (cli->fd == -1) return False;
again:
- ret = client_receive_smb(cli->fd,cli->inbuf,cli->timeout);
+ ret = client_receive_smb(cli->fd,cli->inbuf,abs(cli->timeout));
if (ret) {
/* it might be an oplock break request */
@@ -97,19 +62,18 @@ BOOL cli_receive_smb(struct cli_state *cli)
}
}
- /* If the server is not responding, note that now */
+ /* If the server is not responding, note that now */
- if (!ret) {
- cli->smb_read_error = smb_read_error;
- close(cli->fd);
- cli->fd = -1;
- }
+ if (!ret && cli->timeout > 0) {
+ close(cli->fd);
+ cli->fd = -1;
+ }
return ret;
}
/****************************************************************************
- Send an smb to a fd.
+ send an smb to a fd.
****************************************************************************/
BOOL cli_send_smb(struct cli_state *cli)
@@ -119,34 +83,31 @@ BOOL cli_send_smb(struct cli_state *cli)
ssize_t ret;
/* fd == -1 causes segfaults -- Tom (tom@ninja.nl) */
- if (cli->fd == -1)
- return False;
-
- cli_caclulate_sign_mac(cli);
+ if (cli->fd == -1) return False;
len = smb_len(cli->outbuf) + 4;
while (nwritten < len) {
ret = write_socket(cli->fd,cli->outbuf+nwritten,len - nwritten);
if (ret <= 0) {
- close(cli->fd);
- cli->fd = -1;
- DEBUG(0,("Error writing %d bytes to client. %d (%s)\n",
- (int)len,(int)ret, strerror(errno) ));
+ close(cli->fd);
+ cli->fd = -1;
+ DEBUG(0,("Error writing %d bytes to client. %d\n",
+ (int)len,(int)ret));
return False;
}
nwritten += ret;
}
+
return True;
}
/****************************************************************************
- Setup basics in a outgoing packet.
+setup basics in a outgoing packet
****************************************************************************/
-
void cli_setup_packet(struct cli_state *cli)
{
- cli->rap_error = 0;
+ cli->rap_error = 0;
SSVAL(cli->outbuf,smb_pid,cli->pid);
SSVAL(cli->outbuf,smb_uid,cli->vuid);
SSVAL(cli->outbuf,smb_mid,cli->mid);
@@ -154,32 +115,29 @@ void cli_setup_packet(struct cli_state *cli)
uint16 flags2;
SCVAL(cli->outbuf,smb_flg,0x8);
flags2 = FLAGS2_LONG_PATH_COMPONENTS;
- if (cli->capabilities & CAP_UNICODE)
+ if (cli->capabilities & CAP_UNICODE) {
flags2 |= FLAGS2_UNICODE_STRINGS;
- if (cli->capabilities & CAP_STATUS32)
+ }
+ if (cli->capabilities & CAP_STATUS32) {
flags2 |= FLAGS2_32_BIT_ERROR_CODES;
- if (cli->use_spnego)
- flags2 |= FLAGS2_EXTENDED_SECURITY;
- if (cli->sign_info.use_smb_signing
- || cli->sign_info.temp_smb_signing)
- flags2 |= FLAGS2_SMB_SECURITY_SIGNATURES;
+ }
SSVAL(cli->outbuf,smb_flg2, flags2);
}
}
/****************************************************************************
- Setup the bcc length of the packet from a pointer to the end of the data.
+setup the bcc length of the packet from a pointer to the end of the data
****************************************************************************/
-
void cli_setup_bcc(struct cli_state *cli, void *p)
{
set_message_bcc(cli->outbuf, PTR_DIFF(p, smb_buf(cli->outbuf)));
}
+
+
/****************************************************************************
- Initialise credentials of a client structure.
+initialise a client structure
****************************************************************************/
-
void cli_init_creds(struct cli_state *cli, const struct ntuser_creds *usr)
{
/* copy_nt_creds(&cli->usr, usr); */
@@ -194,10 +152,10 @@ void cli_init_creds(struct cli_state *cli, const struct ntuser_creds *usr)
cli->ntlmssp_flags,cli->ntlmssp_cli_flgs));
}
+
/****************************************************************************
- Initialise a client structure.
+initialise a client structure
****************************************************************************/
-
struct cli_state *cli_initialise(struct cli_state *cli)
{
BOOL alloced_cli = False;
@@ -216,8 +174,9 @@ struct cli_state *cli_initialise(struct cli_state *cli)
alloced_cli = True;
}
- if (cli->initialised)
- cli_close_connection(cli);
+ if (cli->initialised) {
+ cli_shutdown(cli);
+ }
ZERO_STRUCTP(cli);
@@ -234,23 +193,17 @@ struct cli_state *cli_initialise(struct cli_state *cli)
cli->outbuf = (char *)malloc(cli->bufsize);
cli->inbuf = (char *)malloc(cli->bufsize);
cli->oplock_handler = cli_oplock_ack;
- if (lp_use_spnego())
- cli->use_spnego = True;
-
/* Set the CLI_FORCE_DOSERR environment variable to test
client routines using DOS errors instead of STATUS32
ones. This intended only as a temporary hack. */
- if (getenv("CLI_FORCE_DOSERR"))
+ if (getenv("CLI_FORCE_DOSERR")) {
cli->force_dos_errors = True;
+ }
- /* A way to attempt to force SMB signing */
- if (getenv("CLI_FORCE_SMB_SIGNING"))
- cli->sign_info.negotiated_smb_signing = True;
-
if (!cli->outbuf || !cli->inbuf)
goto error;
- if ((cli->mem_ctx = talloc_init_named("cli based talloc")) == NULL)
+ if ((cli->mem_ctx = talloc_init()) == NULL)
goto error;
memset(cli->outbuf, 0, cli->bufsize);
@@ -277,53 +230,42 @@ struct cli_state *cli_initialise(struct cli_state *cli)
}
/****************************************************************************
- Close a client connection and free the memory without destroying cli itself.
+shutdown a client structure
****************************************************************************/
-
-void cli_close_connection(struct cli_state *cli)
+void cli_shutdown(struct cli_state *cli)
{
+ BOOL allocated;
SAFE_FREE(cli->outbuf);
SAFE_FREE(cli->inbuf);
- data_blob_free(&cli->secblob);
-
- if (cli->mem_ctx) {
+ if (cli->mem_ctx)
talloc_destroy(cli->mem_ctx);
- cli->mem_ctx = NULL;
- }
+#ifdef WITH_SSL
+ if (cli->fd != -1)
+ sslutil_disconnect(cli->fd);
+#endif /* WITH_SSL */
if (cli->fd != -1)
close(cli->fd);
- cli->fd = -1;
- cli->smb_read_error = 0;
-}
-
-/****************************************************************************
- Shutdown a client structure.
-****************************************************************************/
-
-void cli_shutdown(struct cli_state *cli)
-{
- BOOL allocated = cli->allocated;
- cli_close_connection(cli);
+ allocated = cli->allocated;
ZERO_STRUCTP(cli);
- if (allocated)
- free(cli);
+ if (allocated) {
+ SAFE_FREE(cli);
+ }
}
+
/****************************************************************************
- Set socket options on a open connection.
+set socket options on a open connection
****************************************************************************/
-
void cli_sockopt(struct cli_state *cli, char *options)
{
set_socket_options(cli->fd, options);
}
/****************************************************************************
- Set the PID to use for smb messages. Return the old pid.
+set the PID to use for smb messages. Return the old pid.
****************************************************************************/
-
uint16 cli_setpid(struct cli_state *cli, uint16 pid)
{
uint16 ret = cli->pid;