Unix SMB/CIFS implementation.
client error handling routines
Copyright (C) Andrew Tridgell 1994-1998
-
+ Copyright (C) Jelmer Vernooij 2003
+ Copyright (C) Jeremy Allison 2006
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-#define NO_SYSLOG
-
#include "includes.h"
-
-/*****************************************************
- RAP error codes - a small start but will be extended.
-
- XXX: Perhaps these should move into a common function because they're
- duplicated in clirap2.c
-
-*******************************************************/
-
-static const struct
-{
- int err;
- const char *message;
-} rap_errmap[] =
-{
- {5, "RAP5: User has insufficient privilege" },
- {50, "RAP50: Not supported by server" },
- {65, "RAP65: Access denied" },
- {86, "RAP86: The specified password is invalid" },
- {2220, "RAP2220: Group does not exist" },
- {2221, "RAP2221: User does not exist" },
- {2226, "RAP2226: Operation only permitted on a Primary Domain Controller" },
- {2237, "RAP2237: User is not in group" },
- {2242, "RAP2242: The password of this user has expired." },
- {2243, "RAP2243: The password of this user cannot change." },
- {2244, "RAP2244: This password cannot be used now (password history conflict)." },
- {2245, "RAP2245: The password is shorter than required." },
- {2246, "RAP2246: The password of this user is too recent to change."},
-
- /* these really shouldn't be here ... */
- {0x80, "Not listening on called name"},
- {0x81, "Not listening for calling name"},
- {0x82, "Called name not present"},
- {0x83, "Called name present, but insufficient resources"},
-
- {0, NULL}
-};
+#include "libsmb/libsmb.h"
+#include "../libcli/smb/smbXcli_base.h"
/****************************************************************************
- return a description of an SMB error
+ Return the 32-bit NT status code from the last packet.
****************************************************************************/
-static const char *cli_smb_errstr(struct cli_state *cli)
-{
- return smb_dos_errstr(cli->inbuf);
-}
-
-/***************************************************************************
- Return an error message - either an NT error, SMB error or a RAP error.
- Note some of the NT errors are actually warnings or "informational" errors
- in which case they can be safely ignored.
-****************************************************************************/
-
-const char *cli_errstr(struct cli_state *cli)
-{
- static fstring cli_error_message;
- uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), errnum;
- uint8 errclass;
- int i;
-
- if (!cli->initialised) {
- fstrcpy(cli_error_message, "[Programmer's error] cli_errstr called on unitialized cli_stat struct!\n");
- return cli_error_message;
- }
-
- /* Was it server socket error ? */
- if (cli->fd == -1 && cli->smb_rw_error) {
- switch(cli->smb_rw_error) {
- case READ_TIMEOUT:
- slprintf(cli_error_message, sizeof(cli_error_message) - 1,
- "Call timed out: server did not respond after %d milliseconds",
- cli->timeout);
- break;
- case READ_EOF:
- slprintf(cli_error_message, sizeof(cli_error_message) - 1,
- "Call returned zero bytes (EOF)\n" );
- break;
- case READ_ERROR:
- slprintf(cli_error_message, sizeof(cli_error_message) - 1,
- "Read error: %s\n", strerror(errno) );
- break;
- case WRITE_ERROR:
- slprintf(cli_error_message, sizeof(cli_error_message) - 1,
- "Write error: %s\n", strerror(errno) );
- break;
- default:
- slprintf(cli_error_message, sizeof(cli_error_message) - 1,
- "Unknown error code %d\n", cli->smb_rw_error );
- break;
- }
- return cli_error_message;
- }
- /* Case #1: RAP error */
- if (cli->rap_error) {
- for (i = 0; rap_errmap[i].message != NULL; i++) {
- if (rap_errmap[i].err == cli->rap_error) {
- return rap_errmap[i].message;
- }
- }
-
- slprintf(cli_error_message, sizeof(cli_error_message) - 1, "RAP code %d",
- cli->rap_error);
-
- return cli_error_message;
- }
-
- /* Case #2: 32-bit NT errors */
- if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
- NTSTATUS status = NT_STATUS(IVAL(cli->inbuf,smb_rcls));
-
- return nt_errstr(status);
- }
-
- cli_dos_error(cli, &errclass, &errnum);
-
- /* Case #3: SMB error */
-
- return cli_smb_errstr(cli);
-}
-
-
-/* Return the 32-bit NT status code from the last packet */
NTSTATUS cli_nt_error(struct cli_state *cli)
{
- int flgs2 = SVAL(cli->inbuf,smb_flg2);
+ /* Deal with socket errors first. */
+ if (!cli_state_is_connected(cli)) {
+ return NT_STATUS_CONNECTION_DISCONNECTED;
+ }
- if (!(flgs2 & FLAGS2_32_BIT_ERROR_CODES)) {
- int class = CVAL(cli->inbuf,smb_rcls);
- int code = SVAL(cli->inbuf,smb_err);
- return dos_to_ntstatus(class, code);
- }
+ if (NT_STATUS_IS_DOS(cli->raw_status)) {
+ int e_class = NT_STATUS_DOS_CLASS(cli->raw_status);
+ int code = NT_STATUS_DOS_CODE(cli->raw_status);
+ return dos_to_ntstatus(e_class, code);
+ }
- return NT_STATUS(IVAL(cli->inbuf,smb_rcls));
+ return cli->raw_status;
}
-/* Return the DOS error from the last packet - an error class and an error
- code. */
-void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
-{
- int flgs2;
- char rcls;
- int code;
-
- if(!cli->initialised) 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;
- }
-
- rcls = CVAL(cli->inbuf,smb_rcls);
- code = SVAL(cli->inbuf,smb_err);
-
- if (eclass) *eclass = rcls;
- if (ecode) *ecode = code;
-}
-
-/* Return a UNIX errno from a dos error class, error number tuple */
+/****************************************************************************
+ Return the DOS error from the last packet - an error class and an error
+ code.
+****************************************************************************/
-static int cli_errno_from_dos(uint8 eclass, uint32 num)
+void cli_dos_error(struct cli_state *cli, uint8_t *eclass, uint32_t *ecode)
{
- if (eclass == ERRDOS) {
- switch (num) {
- case ERRbadfile: return ENOENT;
- case ERRbadpath: return ENOTDIR;
- case ERRnoaccess: return EACCES;
- case ERRfilexists: return EEXIST;
- case ERRrename: return EEXIST;
- case ERRbadshare: return EBUSY;
- case ERRlock: return EBUSY;
- case ERRinvalidname: return ENOENT;
- case ERRnosuchshare: return ENODEV;
- }
+ if (!cli_state_is_connected(cli)) {
+ *eclass = ERRDOS;
+ *ecode = ERRnotconnected;
+ return;
}
- if (eclass == ERRSRV) {
- switch (num) {
- case ERRbadpw: return EPERM;
- case ERRaccess: return EACCES;
- case ERRnoresource: return ENOMEM;
- case ERRinvdevice: return ENODEV;
- case ERRinvnetname: return ENODEV;
- }
+ if (!NT_STATUS_IS_DOS(cli->raw_status)) {
+ ntstatus_to_dos(cli->raw_status, eclass, ecode);
+ return;
}
- /* for other cases */
- return EINVAL;
+ *eclass = NT_STATUS_DOS_CLASS(cli->raw_status);
+ *ecode = NT_STATUS_DOS_CODE(cli->raw_status);
}
-/* Return a UNIX errno from a NT status code */
-static struct {
- NTSTATUS status;
- int error;
-} nt_errno_map[] = {
- {NT_STATUS_ACCESS_VIOLATION, EACCES},
- {NT_STATUS_NO_SUCH_FILE, ENOENT},
- {NT_STATUS_NO_SUCH_DEVICE, ENODEV},
- {NT_STATUS_INVALID_HANDLE, EBADF},
- {NT_STATUS_NO_MEMORY, ENOMEM},
- {NT_STATUS_ACCESS_DENIED, EACCES},
- {NT_STATUS_OBJECT_NAME_NOT_FOUND, ENOENT},
- {NT_STATUS_SHARING_VIOLATION, EBUSY},
- {NT_STATUS_OBJECT_PATH_INVALID, ENOTDIR},
- {NT_STATUS_OBJECT_NAME_COLLISION, EEXIST},
- {NT_STATUS_PATH_NOT_COVERED, ENOENT},
- {NT_STATUS(0), 0}
-};
-
-static int cli_errno_from_nt(NTSTATUS status)
-{
- int i;
- DEBUG(10,("cli_errno_from_nt: 32 bit codes: code=%08x\n", NT_STATUS_V(status)));
-
- /* Status codes without this bit set are not errors */
-
- if (!(NT_STATUS_V(status) & 0xc0000000))
- return 0;
-
- for (i=0;nt_errno_map[i].error;i++) {
- if (NT_STATUS_V(nt_errno_map[i].status) ==
- NT_STATUS_V(status)) return nt_errno_map[i].error;
- }
-
- /* for all other cases - a default code */
- return EINVAL;
-}
/* Return a UNIX errno appropriate for the error received in the last
packet. */
int cli_errno(struct cli_state *cli)
{
- NTSTATUS status;
+ NTSTATUS status;
+
+ if (cli_is_nt_error(cli)) {
+ status = cli_nt_error(cli);
+ return map_errno_from_nt_status(status);
+ }
if (cli_is_dos_error(cli)) {
- uint8 eclass;
- uint32 ecode;
+ uint8_t eclass;
+ uint32_t ecode;
cli_dos_error(cli, &eclass, &ecode);
- return cli_errno_from_dos(eclass, ecode);
+ status = dos_to_ntstatus(eclass, ecode);
+ return map_errno_from_nt_status(status);
}
+ /*
+ * Yuck! A special case for this Vista error. Since its high-order
+ * byte isn't 0xc0, it doesn't match cli_is_nt_error() above.
+ */
status = cli_nt_error(cli);
+ if (NT_STATUS_V(status) == NT_STATUS_V(NT_STATUS_INACCESSIBLE_SYSTEM_SHORTCUT)) {
+ return EACCES;
+ }
- return cli_errno_from_nt(status);
+ /* for other cases */
+ return EINVAL;
}
/* Return true if the last packet was in error */
-BOOL cli_is_error(struct cli_state *cli)
+bool cli_is_error(struct cli_state *cli)
{
- uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), rcls = 0;
+ /* A socket error is always an error. */
+ if (!cli_state_is_connected(cli)) {
+ return true;
+ }
- if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
- /* Return error is error bits are set */
- rcls = IVAL(cli->inbuf, smb_rcls);
- return (rcls & 0xF0000000) == 0xC0000000;
- }
-
- /* Return error if error class in non-zero */
+ if (NT_STATUS_IS_DOS(cli->raw_status)) {
+ /* Return error if error class in non-zero */
+ uint8_t rcls = NT_STATUS_DOS_CLASS(cli->raw_status);
+ return rcls != 0;
+ }
- rcls = CVAL(cli->inbuf, smb_rcls);
- return rcls != 0;
+ return NT_STATUS_IS_ERR(cli->raw_status);
}
/* Return true if the last error was an NT error */
-BOOL cli_is_nt_error(struct cli_state *cli)
+bool cli_is_nt_error(struct cli_state *cli)
{
- uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
+ /* A socket error is always an NT error. */
+ if (!cli_state_is_connected(cli)) {
+ return true;
+ }
- return cli_is_error(cli) && (flgs2 & FLAGS2_32_BIT_ERROR_CODES);
+ return cli_is_error(cli) && !NT_STATUS_IS_DOS(cli->raw_status);
}
/* Return true if the last error was a DOS error */
-BOOL cli_is_dos_error(struct cli_state *cli)
+bool cli_is_dos_error(struct cli_state *cli)
{
- uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
+ /* A socket error is always a DOS error. */
+ if (!cli_state_is_connected(cli)) {
+ return true;
+ }
+
+ return cli_is_error(cli) && NT_STATUS_IS_DOS(cli->raw_status);
+}
+
+bool cli_state_is_connected(struct cli_state *cli)
+{
+ if (cli == NULL) {
+ return false;
+ }
+
+ if (!cli->initialised) {
+ return false;
+ }
- return cli_is_error(cli) && !(flgs2 & FLAGS2_32_BIT_ERROR_CODES);
+ return smbXcli_conn_is_connected(cli->conn);
}
git.samba.org / amitay / samba.git / blobdiff