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-rw-r--r--source/libsmb/clierror.c268
1 files changed, 268 insertions, 0 deletions
diff --git a/source/libsmb/clierror.c b/source/libsmb/clierror.c
new file mode 100644
index 00000000000..81e8be36a8f
--- /dev/null
+++ b/source/libsmb/clierror.c
@@ -0,0 +1,268 @@
+/*
+ Unix SMB/Netbios implementation.
+ Version 3.0
+ client error handling routines
+ Copyright (C) Andrew Tridgell 1994-1998
+
+ 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
+ (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.
+*/
+
+#define NO_SYSLOG
+
+#include "includes.h"
+
+/*****************************************************
+ RAP error codes - a small start but will be extended.
+*******************************************************/
+
+static const struct
+{
+ int err;
+ char *message;
+} rap_errmap[] =
+{
+ {5, "User has insufficient privilege" },
+ {86, "The specified password is invalid" },
+ {2226, "Operation only permitted on a Primary Domain Controller" },
+ {2242, "The password of this user has expired." },
+ {2243, "The password of this user cannot change." },
+ {2244, "This password cannot be used now (password history conflict)." },
+ {2245, "The password is shorter than required." },
+ {2246, "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}
+};
+
+/****************************************************************************
+ return a description of an SMB error
+****************************************************************************/
+static 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.
+****************************************************************************/
+
+char *cli_errstr(struct cli_state *cli)
+{
+ static fstring cli_error_message;
+ uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), errnum;
+ uint8 errclass;
+ int i;
+
+ /* 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 get_nt_error_msg(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);
+
+ 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);
+ }
+
+ return NT_STATUS(IVAL(cli->inbuf,smb_rcls));
+}
+
+
+/* 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 */
+
+int cli_errno_from_dos(uint8 eclass, uint32 num)
+{
+ 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 (eclass == ERRSRV) {
+ switch (num) {
+ case ERRbadpw: return EPERM;
+ case ERRaccess: return EACCES;
+ case ERRnoresource: return ENOMEM;
+ case ERRinvdevice: return ENODEV;
+ case ERRinvnetname: return ENODEV;
+ }
+ }
+
+ /* for other cases */
+ return EINVAL;
+}
+
+/* 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}
+};
+
+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;
+
+ if (cli_is_dos_error(cli)) {
+ uint8 eclass;
+ uint32 ecode;
+
+ cli_dos_error(cli, &eclass, &ecode);
+ return cli_errno_from_dos(eclass, ecode);
+ }
+
+ status = cli_nt_error(cli);
+
+ return cli_errno_from_nt(status);
+}
+
+/* Return true if the last packet was in error */
+
+BOOL cli_is_error(struct cli_state *cli)
+{
+ uint32 flgs2 = SVAL(cli->inbuf,smb_flg2), rcls = 0;
+
+ 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 */
+
+ rcls = CVAL(cli->inbuf, smb_rcls);
+ return rcls != 0;
+}
+
+/* Return true if the last error was an NT error */
+
+BOOL cli_is_nt_error(struct cli_state *cli)
+{
+ uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
+
+ return cli_is_error(cli) && (flgs2 & FLAGS2_32_BIT_ERROR_CODES);
+}
+
+/* Return true if the last error was a DOS error */
+
+BOOL cli_is_dos_error(struct cli_state *cli)
+{
+ uint32 flgs2 = SVAL(cli->inbuf,smb_flg2);
+
+ return cli_is_error(cli) && !(flgs2 & FLAGS2_32_BIT_ERROR_CODES);
+}
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