#define NO_SYSLOG
#include "includes.h"
unsigned int cli_set_timeout(struct cli_state *cli, unsigned int timeout)
{
unsigned int old_timeout = cli->timeout;
cli->timeout = timeout;
return old_timeout;
}
int cli_set_port(struct cli_state *cli, int port)
{
cli->port = port;
return port;
}
static BOOL client_receive_smb(int fd,char *buffer, unsigned int timeout)
{
BOOL ret;
for(;;) {
ret = receive_smb_raw(fd, buffer, timeout);
if (!ret) {
DEBUG(10,("client_receive_smb failed\n"));
show_msg(buffer);
return ret;
}
if(CVAL(buffer,0) != SMBkeepalive)
break;
}
show_msg(buffer);
return ret;
}
BOOL cli_receive_smb(struct cli_state *cli)
{
extern int smb_read_error;
BOOL ret;
if (cli->fd == -1)
return False;
again:
ret = client_receive_smb(cli->fd,cli->inbuf,cli->timeout);
if (ret) {
if (!(CVAL(cli->inbuf, smb_flg) & FLAG_REPLY) &&
CVAL(cli->inbuf,smb_com) == SMBlockingX &&
SVAL(cli->inbuf,smb_vwv6) == 0 &&
SVAL(cli->inbuf,smb_vwv7) == 0) {
if (cli->oplock_handler) {
int fnum = SVAL(cli->inbuf,smb_vwv2);
unsigned char level = CVAL(cli->inbuf,smb_vwv3+1);
if (!cli->oplock_handler(cli, fnum, level)) return False;
}
SCVAL(cli->inbuf,smb_com,0xFF);
goto again;
}
}
if (!ret) {
cli->smb_rw_error = smb_read_error;
close(cli->fd);
cli->fd = -1;
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;
}
BOOL cli_send_smb(struct cli_state *cli)
{
size_t len;
size_t nwritten=0;
ssize_t ret;
if (cli->fd == -1)
return False;
cli_calculate_sign_mac(cli);
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;
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;
}
cli->mid++;
if (!cli->mid)
cli->mid++;
return True;
}
void cli_setup_packet(struct cli_state *cli)
{
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);
if (cli->protocol > PROTOCOL_CORE) {
uint16 flags2;
if (cli->case_sensitive) {
SCVAL(cli->outbuf,smb_flg,0x0);
} else {
SCVAL(cli->outbuf,smb_flg,0x8);
}
flags2 = FLAGS2_LONG_PATH_COMPONENTS;
if (cli->capabilities & CAP_UNICODE)
flags2 |= FLAGS2_UNICODE_STRINGS;
if (cli->capabilities & CAP_STATUS32)
flags2 |= FLAGS2_32_BIT_ERROR_CODES;
if (cli->use_spnego)
flags2 |= FLAGS2_EXTENDED_SECURITY;
SSVAL(cli->outbuf,smb_flg2, flags2);
}
}
void cli_setup_bcc(struct cli_state *cli, void *p)
{
set_message_bcc(cli->outbuf, PTR_DIFF(p, smb_buf(cli->outbuf)));
}
void cli_init_creds(struct cli_state *cli, const struct ntuser_creds *usr)
{
fstrcpy(cli->domain , usr->domain);
fstrcpy(cli->user_name, usr->user_name);
memcpy(&cli->pwd, &usr->pwd, sizeof(usr->pwd));
DEBUG(10,("cli_init_creds: user %s domain %s\n",
cli->user_name, cli->domain));
}
void cli_setup_signing_state(struct cli_state *cli, int signing_state)
{
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;
}
struct cli_state *cli_initialise(struct cli_state *cli)
{
BOOL alloced_cli = False;
if (is_setuid_root()) {
DEBUG(0,("libsmb based programs must *NOT* be setuid root.\n"));
return NULL;
}
if (!cli) {
cli = SMB_MALLOC_P(struct cli_state);
if (!cli)
return NULL;
ZERO_STRUCTP(cli);
alloced_cli = True;
}
if (cli->initialised)
cli_close_connection(cli);
ZERO_STRUCTP(cli);
cli->port = 0;
cli->fd = -1;
cli->cnum = -1;
cli->pid = (uint16)sys_getpid();
cli->mid = 1;
cli->vuid = UID_FIELD_INVALID;
cli->protocol = PROTOCOL_NT1;
cli->timeout = 20000;
cli->bufsize = CLI_BUFFER_SIZE+4;
cli->max_xmit = 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;
cli->case_sensitive = False;
cli->use_spnego = lp_client_use_spnego();
cli->capabilities = CAP_UNICODE | CAP_STATUS32;
if (getenv("CLI_FORCE_DOSERR"))
cli->force_dos_errors = 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("cli based talloc")) == NULL)
goto error;
memset(cli->outbuf, 0, cli->bufsize);
memset(cli->inbuf, 0, cli->bufsize);
#if defined(DEVELOPER)
clobber_region(FUNCTION_MACRO, __LINE__, cli->outbuf+cli->bufsize, SAFETY_MARGIN);
clobber_region(FUNCTION_MACRO, __LINE__, cli->inbuf+cli->bufsize, SAFETY_MARGIN);
#endif
cli_null_set_signing(cli);
cli->nt_pipe_fnum = 0;
cli->saved_netlogon_pipe_fnum = 0;
cli->initialised = 1;
cli->allocated = alloced_cli;
cli->pipe_idx = -1;
return cli;
error:
SAFE_FREE(cli->inbuf);
SAFE_FREE(cli->outbuf);
if (alloced_cli)
SAFE_FREE(cli);
return NULL;
}
void cli_nt_session_close(struct cli_state *cli)
{
if (cli != NULL) {
if (cli->ntlmssp_pipe_state) {
ntlmssp_end(&cli->ntlmssp_pipe_state);
}
if (cli->nt_pipe_fnum != 0)
cli_close(cli, cli->nt_pipe_fnum);
cli->nt_pipe_fnum = 0;
cli->pipe_idx = -1;
}
}
void cli_nt_netlogon_netsec_session_close(struct cli_state *cli)
{
if (cli->saved_netlogon_pipe_fnum != 0) {
cli_close(cli, cli->saved_netlogon_pipe_fnum);
cli->saved_netlogon_pipe_fnum = 0;
}
}
void cli_close_connection(struct cli_state *cli)
{
cli_nt_session_close(cli);
cli_nt_netlogon_netsec_session_close(cli);
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->ntlmssp_pipe_state)
ntlmssp_end(&cli->ntlmssp_pipe_state);
if (cli->mem_ctx) {
talloc_destroy(cli->mem_ctx);
cli->mem_ctx = NULL;
}
if (cli->fd != -1)
close(cli->fd);
cli->fd = -1;
cli->smb_rw_error = 0;
}
void cli_shutdown(struct cli_state *cli)
{
BOOL allocated = False;
if (cli != NULL) {
allocated = cli->allocated;
cli_close_connection(cli);
ZERO_STRUCTP(cli);
if (allocated)
free(cli);
}
}
void cli_sockopt(struct cli_state *cli, const char *options)
{
set_socket_options(cli->fd, options);
}
uint16 cli_setpid(struct cli_state *cli, uint16 pid)
{
uint16 ret = cli->pid;
cli->pid = pid;
return ret;
}
BOOL cli_set_case_sensitive(struct cli_state *cli, BOOL case_sensitive)
{
BOOL ret = cli->case_sensitive;
cli->case_sensitive = case_sensitive;
return ret;
}
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;
}