void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
{
int flgs2;
if(!cli->initialised) {
return;
}
/* Deal with socket errors first. */
if (cli->fd == -1 && cli->smb_rw_error) {
NTSTATUS status = cli_smb_rw_error_to_ntstatus(cli);
ntstatus_to_dos( status, eclass, ecode);
return;
}
flgs2 = SVAL(cli->inbuf,smb_flg2);
if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
NTSTATUS ntstatus = NT_STATUS(IVAL(cli->inbuf, smb_rcls));
ntstatus_to_dos(ntstatus, eclass, ecode);
return;
}
*eclass = CVAL(cli->inbuf,smb_rcls);
*ecode = SVAL(cli->inbuf,smb_err);
}
void set_saved_ntstatus(NTSTATUS status)
{
uint8 tmp_eclass; /* Hmmm. override_ERR_class is not uint8... */
override_ERR_ntstatus = status;
ntstatus_to_dos(status, &tmp_eclass, &override_ERR_code);
override_ERR_class = tmp_eclass;
}
int error_packet(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
{
int outsize = set_message(outbuf,0,0,True);
BOOL force_nt_status = False;
BOOL force_dos_status = False;
if (override_ERR_class != SMB_SUCCESS || !NT_STATUS_IS_OK(override_ERR_ntstatus)) {
eclass = override_ERR_class;
ecode = override_ERR_code;
ntstatus = override_ERR_ntstatus;
override_ERR_class = SMB_SUCCESS;
override_ERR_code = 0;
override_ERR_ntstatus = NT_STATUS_OK;
}
if (eclass == (uint8)-1) {
force_nt_status = True;
} else if (NT_STATUS_IS_INVALID(ntstatus)) {
force_dos_status = True;
}
if (force_nt_status || (!force_dos_status && lp_nt_status_support() && (global_client_caps & CAP_STATUS32))) {
/* We're returning an NT error. */
if (NT_STATUS_V(ntstatus) == 0 && eclass) {
ntstatus = dos_to_ntstatus(eclass, ecode);
}
SIVAL(outbuf,smb_rcls,NT_STATUS_V(ntstatus));
SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
DEBUG(3,("error packet at %s(%d) cmd=%d (%s) %s\n",
file, line,
(int)CVAL(outbuf,smb_com),
smb_fn_name(CVAL(outbuf,smb_com)),
nt_errstr(ntstatus)));
} else {
/* We're returning a DOS error only. */
if (eclass == 0 && NT_STATUS_V(ntstatus)) {
ntstatus_to_dos(ntstatus, &eclass, &ecode);
}
SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
SSVAL(outbuf,smb_rcls,eclass);
SSVAL(outbuf,smb_err,ecode);
DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
file, line,
(int)CVAL(outbuf,smb_com),
smb_fn_name(CVAL(outbuf,smb_com)),
eclass,
ecode));
}
return outsize;
}
void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
{
if (!cli_state_is_connected(cli)) {
*eclass = ERRDOS;
*ecode = ERRnotconnected;
return;
}
if (!NT_STATUS_IS_DOS(cli->raw_status)) {
ntstatus_to_dos(cli->raw_status, eclass, ecode);
return;
}
*eclass = NT_STATUS_DOS_CLASS(cli->raw_status);
*ecode = NT_STATUS_DOS_CODE(cli->raw_status);
}
void error_packet_set(char *outbuf, uint8 eclass, uint32 ecode, NTSTATUS ntstatus, int line, const char *file)
{
BOOL force_nt_status = False;
BOOL force_dos_status = False;
if (eclass == (uint8)-1) {
force_nt_status = True;
} else if (NT_STATUS_IS_DOS(ntstatus)) {
force_dos_status = True;
}
if (force_nt_status || (!force_dos_status && lp_nt_status_support() && (global_client_caps & CAP_STATUS32))) {
/* We're returning an NT error. */
if (NT_STATUS_V(ntstatus) == 0 && eclass) {
ntstatus = dos_to_ntstatus(eclass, ecode);
}
SIVAL(outbuf,smb_rcls,NT_STATUS_V(ntstatus));
SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
DEBUG(3,("error packet at %s(%d) cmd=%d (%s) %s\n",
file, line,
(int)CVAL(outbuf,smb_com),
smb_fn_name(CVAL(outbuf,smb_com)),
nt_errstr(ntstatus)));
} else {
/* We're returning a DOS error only. */
if (NT_STATUS_IS_DOS(ntstatus)) {
eclass = NT_STATUS_DOS_CLASS(ntstatus);
ecode = NT_STATUS_DOS_CODE(ntstatus);
} else if (eclass == 0 && NT_STATUS_V(ntstatus)) {
ntstatus_to_dos(ntstatus, &eclass, &ecode);
}
SSVAL(outbuf,smb_flg2, SVAL(outbuf,smb_flg2)&~FLAGS2_32_BIT_ERROR_CODES);
SSVAL(outbuf,smb_rcls,eclass);
SSVAL(outbuf,smb_err,ecode);
DEBUG(3,("error packet at %s(%d) cmd=%d (%s) eclass=%d ecode=%d\n",
file, line,
(int)CVAL(outbuf,smb_com),
smb_fn_name(CVAL(outbuf,smb_com)),
eclass,
ecode));
}
}
/*
setup the header of a reply to include an NTSTATUS code
*/
void smbsrv_setup_error(struct smbsrv_request *req, NTSTATUS status)
{
if (!req->smb_conn->config.nt_status_support || !(req->smb_conn->negotiate.client_caps & CAP_STATUS32)) {
/* convert to DOS error codes */
uint8_t eclass;
uint32_t ecode;
ntstatus_to_dos(status, &eclass, &ecode);
SCVAL(req->out.hdr, HDR_RCLS, eclass);
SSVAL(req->out.hdr, HDR_ERR, ecode);
SSVAL(req->out.hdr, HDR_FLG2, SVAL(req->out.hdr, HDR_FLG2) & ~FLAGS2_32_BIT_ERROR_CODES);
return;
}
if (NT_STATUS_IS_DOS(status)) {
/* its a encoded DOS error, using the reserved range */
SSVAL(req->out.hdr, HDR_RCLS, NT_STATUS_DOS_CLASS(status));
SSVAL(req->out.hdr, HDR_ERR, NT_STATUS_DOS_CODE(status));
SSVAL(req->out.hdr, HDR_FLG2, SVAL(req->out.hdr, HDR_FLG2) & ~FLAGS2_32_BIT_ERROR_CODES);
} else {
SIVAL(req->out.hdr, HDR_RCLS, NT_STATUS_V(status));
SSVAL(req->out.hdr, HDR_FLG2, SVAL(req->out.hdr, HDR_FLG2) | FLAGS2_32_BIT_ERROR_CODES);
}
}
int
map_smb_to_linux_error(struct smb_hdr *smb, int logErr)
{
unsigned int i;
int rc = -EIO; /* if transport error smb error may not be set */
__u8 smberrclass;
__u16 smberrcode;
/* BB if NT Status codes - map NT BB */
/* old style smb error codes */
if (smb->Status.CifsError == 0)
return 0;
if (smb->Flags2 & SMBFLG2_ERR_STATUS) {
/* translate the newer STATUS codes to old style SMB errors
* and then to POSIX errors */
__u32 err = le32_to_cpu(smb->Status.CifsError);
if (logErr && (err != (NT_STATUS_MORE_PROCESSING_REQUIRED)))
cifs_print_status(err);
else if (cifsFYI & CIFS_RC)
cifs_print_status(err);
ntstatus_to_dos(err, &smberrclass, &smberrcode);
} else {
smberrclass = smb->Status.DosError.ErrorClass;
smberrcode = le16_to_cpu(smb->Status.DosError.Error);
}
/* old style errors */
/* DOS class smb error codes - map DOS */
if (smberrclass == ERRDOS) {
/* 1 byte field no need to byte reverse */
for (i = 0;
i <
sizeof(mapping_table_ERRDOS) /
sizeof(struct smb_to_posix_error); i++) {
if (mapping_table_ERRDOS[i].smb_err == 0)
break;
else if (mapping_table_ERRDOS[i].smb_err ==
smberrcode) {
rc = mapping_table_ERRDOS[i].posix_code;
break;
}
/* else try next error mapping one to see if match */
}
} else if (smberrclass == ERRSRV) {
/* server class of error codes */
for (i = 0;
i <
sizeof(mapping_table_ERRSRV) /
sizeof(struct smb_to_posix_error); i++) {
if (mapping_table_ERRSRV[i].smb_err == 0)
break;
else if (mapping_table_ERRSRV[i].smb_err ==
smberrcode) {
rc = mapping_table_ERRSRV[i].posix_code;
break;
}
/* else try next error mapping to see if match */
}
}
/* else ERRHRD class errors or junk - return EIO */
cFYI(1, "Mapping smb error code %d to POSIX err %d",
smberrcode, rc);
/* generic corrective action e.g. reconnect SMB session on
* ERRbaduid could be added */
return rc;
}