Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#define NO_SYSLOG
-
#include "includes.h"
-/*
- * Change the port number used to call on
- */
+/****************************************************************************
+ Change the timeout (in milliseconds).
+****************************************************************************/
+
+unsigned int cli_set_timeout(struct cli_state *cli, unsigned int timeout)
+{
+ unsigned int old_timeout = cli->timeout;
+ cli->timeout = timeout;
+ return old_timeout;
+}
+
+/****************************************************************************
+ Change the port number used to call on.
+****************************************************************************/
+
int cli_set_port(struct cli_state *cli, int port)
{
cli->port = 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.
+ 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;
-}
+ BOOL ret;
+ for(;;) {
+ ret = receive_smb_raw(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);
}
}
- /* If the server is not responding, note that now */
+ /* If the server is not responding, note that now */
- if (!ret) {
- close(cli->fd);
- cli->fd = -1;
- }
+ if (!ret) {
+ cli->smb_rw_error = smb_read_error;
+ close(cli->fd);
+ cli->fd = -1;
+ return ret;
+ }
- return ret;
+ if (!cli_check_sign_mac(cli)) {
+ DEBUG(0, ("SMB Signature verification failed on incoming packet!\n"));
+ cli->smb_rw_error = READ_BAD_SIG;
+ close(cli->fd);
+ cli->fd = -1;
+ return False;
+ };
+ return True;
+}
+
+static ssize_t write_socket(int fd, const char *buf, size_t len)
+{
+ ssize_t ret=0;
+
+ DEBUG(6,("write_socket(%d,%d)\n",fd,(int)len));
+ ret = write_data(fd,buf,len);
+
+ DEBUG(6,("write_socket(%d,%d) wrote %d\n",fd,(int)len,(int)ret));
+ if(ret <= 0)
+ DEBUG(0,("write_socket: Error writing %d bytes to socket %d: ERRNO = %s\n",
+ (int)len, fd, strerror(errno) ));
+
+ return(ret);
}
/****************************************************************************
if (cli->fd == -1)
return False;
- cli_caclulate_sign_mac(cli);
+ cli_calculate_sign_mac(cli);
len = smb_len(cli->outbuf) + 4;
if (ret <= 0) {
close(cli->fd);
cli->fd = -1;
- DEBUG(0,("Error writing %d bytes to client. %d\n", (int)len,(int)ret));
+ cli->smb_rw_error = WRITE_ERROR;
+ DEBUG(0,("Error writing %d bytes to client. %d (%s)\n",
+ (int)len,(int)ret, strerror(errno) ));
return False;
}
nwritten += ret;
}
+ /* Increment the mid so we can tell between responses. */
+ cli->mid++;
+ if (!cli->mid)
+ cli->mid++;
return True;
}
SSVAL(cli->outbuf,smb_mid,cli->mid);
if (cli->protocol > PROTOCOL_CORE) {
uint16 flags2;
- SCVAL(cli->outbuf,smb_flg,0x8);
+ if (cli->case_sensitive) {
+ SCVAL(cli->outbuf,smb_flg,0x0);
+ } else {
+ /* Default setting, case insensitive. */
+ 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_DFS)
+ flags2 |= FLAGS2_DFS_PATHNAMES;
+ if (cli->capabilities & CAP_STATUS32)
flags2 |= FLAGS2_32_BIT_ERROR_CODES;
- }
- if (cli->use_spnego) {
+ 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.
+****************************************************************************/
+
+void cli_init_creds(struct cli_state *cli, const char *username, const char *domain, const char *password)
+{
+ fstrcpy(cli->domain, domain);
+ fstrcpy(cli->user_name, username);
+ pwd_set_cleartext(&cli->pwd, password);
+ if (!*username) {
+ cli->pwd.null_pwd = True;
+ }
+ DEBUG(10,("cli_init_creds: user %s domain %s\n", cli->user_name, cli->domain));
+}
/****************************************************************************
-initialise credentials of a client structure
+ Set the signing state (used from the command line).
****************************************************************************/
-void cli_init_creds(struct cli_state *cli, const struct ntuser_creds *usr)
+
+void cli_setup_signing_state(struct cli_state *cli, int signing_state)
{
- /* copy_nt_creds(&cli->usr, usr); */
- safe_strcpy(cli->domain , usr->domain , sizeof(usr->domain )-1);
- safe_strcpy(cli->user_name, usr->user_name, sizeof(usr->user_name)-1);
- memcpy(&cli->pwd, &usr->pwd, sizeof(usr->pwd));
- cli->ntlmssp_flags = usr->ntlmssp_flags;
- cli->ntlmssp_cli_flgs = usr != NULL ? usr->ntlmssp_flags : 0;
-
- DEBUG(10,("cli_init_creds: user %s domain %s flgs: %x\nntlmssp_cli_flgs:%x\n",
- cli->user_name, cli->domain,
- cli->ntlmssp_flags,cli->ntlmssp_cli_flgs));
-}
+ if (signing_state == Undefined)
+ return;
+
+ if (signing_state == False) {
+ cli->sign_info.allow_smb_signing = False;
+ cli->sign_info.mandatory_signing = False;
+ return;
+ }
+ cli->sign_info.allow_smb_signing = True;
+
+ if (signing_state == Required)
+ cli->sign_info.mandatory_signing = True;
+}
/****************************************************************************
-initialise a client structure
+ Initialise a client structure.
****************************************************************************/
+
struct cli_state *cli_initialise(struct cli_state *cli)
{
BOOL alloced_cli = False;
}
if (!cli) {
- cli = (struct cli_state *)malloc(sizeof(*cli));
+ cli = SMB_MALLOC_P(struct cli_state);
if (!cli)
return NULL;
ZERO_STRUCTP(cli);
alloced_cli = True;
}
- if (cli->initialised) {
- cli_shutdown(cli);
- }
+ if (cli->initialised)
+ cli_close_connection(cli);
ZERO_STRUCTP(cli);
cli->timeout = 20000; /* Timeout is in milliseconds. */
cli->bufsize = CLI_BUFFER_SIZE+4;
cli->max_xmit = cli->bufsize;
- cli->outbuf = (char *)malloc(cli->bufsize);
- cli->inbuf = (char *)malloc(cli->bufsize);
+ cli->outbuf = (char *)SMB_MALLOC(cli->bufsize+SAFETY_MARGIN);
+ cli->inbuf = (char *)SMB_MALLOC(cli->bufsize+SAFETY_MARGIN);
cli->oplock_handler = cli_oplock_ack;
- if (lp_use_spnego()) {
- cli->use_spnego = True;
- }
+ cli->case_sensitive = False;
+ cli->smb_rw_error = 0;
+
+ cli->use_spnego = lp_client_use_spnego();
+
+ cli->capabilities = CAP_UNICODE | CAP_STATUS32 | CAP_DFS;
/* 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 (lp_client_signing())
+ cli->sign_info.allow_smb_signing = True;
+
+ if (lp_client_signing() == Required)
+ cli->sign_info.mandatory_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("cli based talloc")) == NULL)
goto error;
memset(cli->outbuf, 0, cli->bufsize);
memset(cli->inbuf, 0, cli->bufsize);
- cli->nt_pipe_fnum = 0;
+
+#if defined(DEVELOPER)
+ /* just because we over-allocate, doesn't mean it's right to use it */
+ clobber_region(FUNCTION_MACRO, __LINE__, cli->outbuf+cli->bufsize, SAFETY_MARGIN);
+ clobber_region(FUNCTION_MACRO, __LINE__, cli->inbuf+cli->bufsize, SAFETY_MARGIN);
+#endif
+
+ /* initialise signing */
+ cli_null_set_signing(cli);
cli->initialised = 1;
cli->allocated = alloced_cli;
}
/****************************************************************************
-shutdown a client structure
+ External interface.
+ Close an open named pipe over SMB. Free any authentication data.
+ ****************************************************************************/
+
+void cli_rpc_pipe_close(struct rpc_pipe_client *cli)
+{
+ if (!cli_close(cli->cli, cli->fnum)) {
+ DEBUG(0,("cli_rpc_pipe_close: cli_close failed on pipe %s, "
+ "fnum 0x%x "
+ "to machine %s. Error was %s\n",
+ cli->pipe_name,
+ (int) cli->fnum,
+ cli->cli->desthost,
+ cli_errstr(cli->cli)));
+ }
+
+ if (cli->auth.cli_auth_data_free_func) {
+ (*cli->auth.cli_auth_data_free_func)(&cli->auth);
+ }
+
+ DEBUG(10,("cli_rpc_pipe_close: closed pipe %s to machine %s\n",
+ cli->pipe_name, cli->cli->desthost ));
+
+ DLIST_REMOVE(cli->cli->pipe_list, cli);
+ talloc_destroy(cli->mem_ctx);
+}
+
+/****************************************************************************
+ Close all pipes open on this session.
****************************************************************************/
-void cli_shutdown(struct cli_state *cli)
+
+void cli_nt_pipes_close(struct cli_state *cli)
+{
+ struct rpc_pipe_client *cp, *next;
+
+ for (cp = cli->pipe_list; cp; cp = next) {
+ next = cp->next;
+ cli_rpc_pipe_close(cp);
+ }
+}
+
+/****************************************************************************
+ Close a client connection and free the memory without destroying cli itself.
+****************************************************************************/
+
+void cli_close_connection(struct cli_state *cli)
{
- BOOL allocated;
+ cli_nt_pipes_close(cli);
+
+ /*
+ * tell our peer to free his resources. Wihtout this, when an
+ * application attempts to do a graceful shutdown and calls
+ * smbc_free_context() to clean up all connections, some connections
+ * can remain active on the peer end, until some (long) timeout period
+ * later. This tree disconnect forces the peer to clean up, since the
+ * connection will be going away.
+ *
+ * Also, do not do tree disconnect when cli->smb_rw_error is DO_NOT_DO_TDIS
+ * the only user for this so far is smbmount which passes opened connection
+ * down to kernel's smbfs module.
+ */
+ if ( (cli->cnum != (uint16)-1) && (cli->smb_rw_error != DO_NOT_DO_TDIS ) ) {
+ cli_tdis(cli);
+ }
+
SAFE_FREE(cli->outbuf);
SAFE_FREE(cli->inbuf);
+ cli_free_signing_context(cli);
data_blob_free(&cli->secblob);
+ data_blob_free(&cli->user_session_key);
- if (cli->mem_ctx)
+ if (cli->mem_ctx) {
talloc_destroy(cli->mem_ctx);
+ cli->mem_ctx = NULL;
+ }
- if (cli->fd != -1)
+ if (cli->fd != -1) {
close(cli->fd);
- allocated = cli->allocated;
+ }
+ cli->fd = -1;
+ cli->smb_rw_error = 0;
+}
+
+/****************************************************************************
+ Shutdown a client structure.
+****************************************************************************/
+
+void cli_shutdown(struct cli_state *cli)
+{
+ BOOL allocated = cli->allocated;
+ cli_close_connection(cli);
ZERO_STRUCTP(cli);
if (allocated) {
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)
+
+void cli_sockopt(struct cli_state *cli, const 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;
cli->pid = pid;
return ret;
}
+
+/****************************************************************************
+ Set the case sensitivity flag on the packets. Returns old state.
+****************************************************************************/
+
+BOOL cli_set_case_sensitive(struct cli_state *cli, BOOL case_sensitive)
+{
+ BOOL ret = cli->case_sensitive;
+ cli->case_sensitive = case_sensitive;
+ return ret;
+}
+
+/****************************************************************************
+Send a keepalive packet to the server
+****************************************************************************/
+
+BOOL cli_send_keepalive(struct cli_state *cli)
+{
+ if (cli->fd == -1) {
+ DEBUG(3, ("cli_send_keepalive: fd == -1\n"));
+ return False;
+ }
+ if (!send_keepalive(cli->fd)) {
+ close(cli->fd);
+ cli->fd = -1;
+ DEBUG(0,("Error sending keepalive packet to client.\n"));
+ return False;
+ }
+ return True;
+}
+
+/****************************************************************************
+ Send/receive a SMBecho command: ping the server
+****************************************************************************/
+
+BOOL cli_echo(struct cli_state *cli, unsigned char *data, size_t length)
+{
+ char *p;
+
+ SMB_ASSERT(length < 1024);
+
+ memset(cli->outbuf,'\0',smb_size);
+ set_message(cli->outbuf,1,length,True);
+ SCVAL(cli->outbuf,smb_com,SMBecho);
+ SSVAL(cli->outbuf,smb_tid,65535);
+ SSVAL(cli->outbuf,smb_vwv0,1);
+ cli_setup_packet(cli);
+ p = smb_buf(cli->outbuf);
+ memcpy(p, data, length);
+ p += length;
+
+ cli_setup_bcc(cli, p);
+
+ cli_send_smb(cli);
+ if (!cli_receive_smb(cli)) {
+ return False;
+ }
+
+ if (cli_is_error(cli)) {
+ return False;
+ }
+ return True;
+}
git.samba.org / samba.git / blobdiff