/*
- Unix SMB/Netbios implementation.
- Version 3.0
+ 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,
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"
-
-extern int DEBUGLEVEL;
-
-
/*****************************************************
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 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}
+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}
};
/****************************************************************************
- return a description of an SMB error
+ Return a description of an SMB error.
****************************************************************************/
-static char *cli_smb_errstr(struct cli_state *cli)
+
+static const char *cli_smb_errstr(struct cli_state *cli)
{
- return smb_errstr(cli->inbuf);
+ return smb_dos_errstr(cli->inbuf);
}
-/******************************************************
- Return an error message - either an SMB error or a RAP
- error.
-*******************************************************/
-
-char *cli_errstr(struct cli_state *cli)
-{
- static fstring error_message;
- uint8 errclass;
- uint32 errnum;
- uint32 nt_rpc_error;
- int i;
-
- /*
- * Errors are of three kinds - smb errors,
- * dealt with by cli_smb_errstr, NT errors,
- * whose code is in cli.nt_error, and rap
- * errors, whose error code is in cli.rap_error.
- */
-
- cli_error(cli, &errclass, &errnum, &nt_rpc_error);
-
- if (errclass != 0)
- {
- return cli_smb_errstr(cli);
+/****************************************************************************
+ Convert a socket error into an NTSTATUS.
+****************************************************************************/
+
+static NTSTATUS cli_smb_rw_error_to_ntstatus(struct cli_state *cli)
+{
+ switch(cli->smb_rw_error) {
+ case READ_TIMEOUT:
+ return NT_STATUS_IO_TIMEOUT;
+ case READ_EOF:
+ return NT_STATUS_END_OF_FILE;
+ /* What we shoud really do for read/write errors is convert from errno. */
+ /* FIXME. JRA. */
+ case READ_ERROR:
+ return NT_STATUS_INVALID_NETWORK_RESPONSE;
+ case WRITE_ERROR:
+ return NT_STATUS_UNEXPECTED_NETWORK_ERROR;
+ case READ_BAD_SIG:
+ return NT_STATUS_INVALID_PARAMETER;
+ default:
+ break;
}
+ return NT_STATUS_UNSUCCESSFUL;
+}
- /*
- * Was it an NT error ?
- */
+/***************************************************************************
+ 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 (nt_rpc_error)
- {
- char *nt_msg = (char *)get_nt_error_msg(nt_rpc_error);
+ if (!cli->initialised) {
+ fstrcpy(cli_error_message, "[Programmer's error] cli_errstr called on unitialized cli_stat struct!\n");
+ return cli_error_message;
+ }
- if (nt_msg == NULL)
- {
- slprintf(error_message, sizeof(fstring) - 1, "NT code %d", nt_rpc_error);
+ /* 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)" );
+ break;
+ case READ_ERROR:
+ slprintf(cli_error_message, sizeof(cli_error_message) - 1,
+ "Read error: %s", strerror(errno) );
+ break;
+ case WRITE_ERROR:
+ slprintf(cli_error_message, sizeof(cli_error_message) - 1,
+ "Write error: %s", strerror(errno) );
+ break;
+ case READ_BAD_SIG:
+ slprintf(cli_error_message, sizeof(cli_error_message) - 1,
+ "Server packet had invalid SMB signature!");
+ break;
+ default:
+ slprintf(cli_error_message, sizeof(cli_error_message) - 1,
+ "Unknown error code %d\n", cli->smb_rw_error );
+ break;
}
- else
- {
- fstrcpy(error_message, nt_msg);
+ 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;
+ }
}
- return error_message;
+ slprintf(cli_error_message, sizeof(cli_error_message) - 1, "RAP code %d",
+ cli->rap_error);
+
+ return cli_error_message;
}
- /*
- * Must have been a rap error.
- */
+ /* 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);
+ }
- slprintf(error_message, sizeof(error_message) - 1, "code %d", cli->rap_error);
+ cli_dos_error(cli, &errclass, &errnum);
- for (i = 0; rap_errmap[i].message != NULL; i++)
- {
- if (rap_errmap[i].err == cli->rap_error)
- {
- fstrcpy( error_message, rap_errmap[i].message);
- break;
- }
- }
+ /* Case #3: SMB error */
- return error_message;
+ return cli_smb_errstr(cli);
}
/****************************************************************************
- return error codes for the last packet
- returns 0 if there was no error and the best approx of a unix errno
- otherwise
+ 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->fd == -1 && cli->smb_rw_error) {
+ return cli_smb_rw_error_to_ntstatus(cli);
+ }
+
+ if (!(flgs2 & FLAGS2_32_BIT_ERROR_CODES)) {
+ int e_class = CVAL(cli->inbuf,smb_rcls);
+ int code = SVAL(cli->inbuf,smb_err);
+ return dos_to_ntstatus(e_class, code);
+ }
+
+ return NT_STATUS(IVAL(cli->inbuf,smb_rcls));
+}
- for 32 bit "warnings", a return code of 0 is expected.
+/****************************************************************************
+ Return the DOS error from the last packet - an error class and an error
+ code.
****************************************************************************/
-int cli_error(struct cli_state *cli, uint8 *eclass, uint32 *num, uint32 *nt_rpc_error)
+
+void cli_dos_error(struct cli_state *cli, uint8 *eclass, uint32 *ecode)
{
int flgs2;
- char rcls;
- int code;
-
- if (eclass) *eclass = 0;
- if (num ) *num = 0;
- if (nt_rpc_error) *nt_rpc_error = 0;
- if(!cli->initialised)
- return EINVAL;
+ if(!cli->initialised) {
+ return;
+ }
- if(!cli->inbuf)
- return ENOMEM;
+ /* 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 (nt_rpc_error) *nt_rpc_error = cli->nt_error;
if (flgs2 & FLAGS2_32_BIT_ERROR_CODES) {
- /* 32 bit error codes detected */
- uint32 nt_err = IVAL(cli->inbuf,smb_rcls);
- if (num) *num = nt_err;
- DEBUG(10,("cli_error: 32 bit codes: code=%08x\n", nt_err));
- if (!(nt_err & 0xc0000000))
- return 0;
-
- switch (nt_err) {
- case NT_STATUS_ACCESS_VIOLATION: return EACCES;
- case NT_STATUS_NO_SUCH_FILE: return ENOENT;
- case NT_STATUS_NO_SUCH_DEVICE: return ENODEV;
- case NT_STATUS_INVALID_HANDLE: return EBADF;
- case NT_STATUS_NO_MEMORY: return ENOMEM;
- case NT_STATUS_ACCESS_DENIED: return EACCES;
- case NT_STATUS_OBJECT_NAME_NOT_FOUND: return ENOENT;
- case NT_STATUS_SHARING_VIOLATION: return EBUSY;
- case NT_STATUS_OBJECT_PATH_INVALID: return ENOTDIR;
- case NT_STATUS_OBJECT_NAME_COLLISION: return EEXIST;
- }
+ 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);
+}
+
+/* Return a UNIX errno from a NT status code */
+static const struct {
+ NTSTATUS status;
+ int error;
+} nt_errno_map[] = {
+ {NT_STATUS_ACCESS_VIOLATION, EACCES},
+ {NT_STATUS_INVALID_HANDLE, EBADF},
+ {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_UNSUCCESSFUL, EINVAL},
+ {NT_STATUS_NOT_IMPLEMENTED, ENOSYS},
+ {NT_STATUS_IN_PAGE_ERROR, EFAULT},
+ {NT_STATUS_BAD_NETWORK_NAME, ENOENT},
+#ifdef EDQUOT
+ {NT_STATUS_PAGEFILE_QUOTA, EDQUOT},
+ {NT_STATUS_QUOTA_EXCEEDED, EDQUOT},
+ {NT_STATUS_REGISTRY_QUOTA_LIMIT, EDQUOT},
+ {NT_STATUS_LICENSE_QUOTA_EXCEEDED, EDQUOT},
+#endif
+#ifdef ETIME
+ {NT_STATUS_TIMER_NOT_CANCELED, ETIME},
+#endif
+ {NT_STATUS_INVALID_PARAMETER, EINVAL},
+ {NT_STATUS_NO_SUCH_DEVICE, ENODEV},
+ {NT_STATUS_NO_SUCH_FILE, ENOENT},
+#ifdef ENODATA
+ {NT_STATUS_END_OF_FILE, ENODATA},
+#endif
+#ifdef ENOMEDIUM
+ {NT_STATUS_NO_MEDIA_IN_DEVICE, ENOMEDIUM},
+ {NT_STATUS_NO_MEDIA, ENOMEDIUM},
+#endif
+ {NT_STATUS_NONEXISTENT_SECTOR, ESPIPE},
+ {NT_STATUS_NO_MEMORY, ENOMEM},
+ {NT_STATUS_CONFLICTING_ADDRESSES, EADDRINUSE},
+ {NT_STATUS_NOT_MAPPED_VIEW, EINVAL},
+ {NT_STATUS_UNABLE_TO_FREE_VM, EADDRINUSE},
+ {NT_STATUS_ACCESS_DENIED, EACCES},
+ {NT_STATUS_BUFFER_TOO_SMALL, ENOBUFS},
+ {NT_STATUS_WRONG_PASSWORD, EACCES},
+ {NT_STATUS_LOGON_FAILURE, EACCES},
+ {NT_STATUS_INVALID_WORKSTATION, EACCES},
+ {NT_STATUS_INVALID_LOGON_HOURS, EACCES},
+ {NT_STATUS_PASSWORD_EXPIRED, EACCES},
+ {NT_STATUS_ACCOUNT_DISABLED, EACCES},
+ {NT_STATUS_DISK_FULL, ENOSPC},
+ {NT_STATUS_INVALID_PIPE_STATE, EPIPE},
+ {NT_STATUS_PIPE_BUSY, EPIPE},
+ {NT_STATUS_PIPE_DISCONNECTED, EPIPE},
+ {NT_STATUS_PIPE_NOT_AVAILABLE, ENOSYS},
+ {NT_STATUS_FILE_IS_A_DIRECTORY, EISDIR},
+ {NT_STATUS_NOT_SUPPORTED, ENOSYS},
+ {NT_STATUS_NOT_A_DIRECTORY, ENOTDIR},
+ {NT_STATUS_DIRECTORY_NOT_EMPTY, ENOTEMPTY},
+ {NT_STATUS_NETWORK_UNREACHABLE, ENETUNREACH},
+ {NT_STATUS_HOST_UNREACHABLE, EHOSTUNREACH},
+ {NT_STATUS_CONNECTION_ABORTED, ECONNABORTED},
+ {NT_STATUS_CONNECTION_REFUSED, ECONNREFUSED},
+ {NT_STATUS_TOO_MANY_LINKS, EMLINK},
+ {NT_STATUS_NETWORK_BUSY, EBUSY},
+ {NT_STATUS_DEVICE_DOES_NOT_EXIST, ENODEV},
+#ifdef ELIBACC
+ {NT_STATUS_DLL_NOT_FOUND, ELIBACC},
+#endif
+ {NT_STATUS_PIPE_BROKEN, EPIPE},
+ {NT_STATUS_REMOTE_NOT_LISTENING, ECONNREFUSED},
+ {NT_STATUS_NETWORK_ACCESS_DENIED, EACCES},
+ {NT_STATUS_TOO_MANY_OPENED_FILES, EMFILE},
+#ifdef EPROTO
+ {NT_STATUS_DEVICE_PROTOCOL_ERROR, EPROTO},
+#endif
+ {NT_STATUS_FLOAT_OVERFLOW, ERANGE},
+ {NT_STATUS_FLOAT_UNDERFLOW, ERANGE},
+ {NT_STATUS_INTEGER_OVERFLOW, ERANGE},
+ {NT_STATUS_MEDIA_WRITE_PROTECTED, EROFS},
+ {NT_STATUS_PIPE_CONNECTED, EISCONN},
+ {NT_STATUS_MEMORY_NOT_ALLOCATED, EFAULT},
+ {NT_STATUS_FLOAT_INEXACT_RESULT, ERANGE},
+ {NT_STATUS_ILL_FORMED_PASSWORD, EACCES},
+ {NT_STATUS_PASSWORD_RESTRICTION, EACCES},
+ {NT_STATUS_ACCOUNT_RESTRICTION, EACCES},
+ {NT_STATUS_PORT_CONNECTION_REFUSED, ECONNREFUSED},
+ {NT_STATUS_NAME_TOO_LONG, ENAMETOOLONG},
+ {NT_STATUS_REMOTE_DISCONNECT, ESHUTDOWN},
+ {NT_STATUS_CONNECTION_DISCONNECTED, ECONNABORTED},
+ {NT_STATUS_CONNECTION_RESET, ENETRESET},
+#ifdef ENOTUNIQ
+ {NT_STATUS_IP_ADDRESS_CONFLICT1, ENOTUNIQ},
+ {NT_STATUS_IP_ADDRESS_CONFLICT2, ENOTUNIQ},
+#endif
+ {NT_STATUS_PORT_MESSAGE_TOO_LONG, EMSGSIZE},
+ {NT_STATUS_PROTOCOL_UNREACHABLE, ENOPROTOOPT},
+ {NT_STATUS_ADDRESS_ALREADY_EXISTS, EADDRINUSE},
+ {NT_STATUS_PORT_UNREACHABLE, EHOSTUNREACH},
+ {NT_STATUS_IO_TIMEOUT, ETIMEDOUT},
+ {NT_STATUS_RETRY, EAGAIN},
+#ifdef ENOTUNIQ
+ {NT_STATUS_DUPLICATE_NAME, ENOTUNIQ},
+#endif
+#ifdef ECOMM
+ {NT_STATUS_NET_WRITE_FAULT, ECOMM},
+#endif
+#ifdef EXDEV
+ {NT_STATUS_NOT_SAME_DEVICE, EXDEV},
+#endif
+ {NT_STATUS(0), 0}
+};
- /* for all other cases - a default code */
- return EINVAL;
+/****************************************************************************
+ The following mappings need tidying up and moving into libsmb/errormap.c...
+****************************************************************************/
+
+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;
}
- rcls = CVAL(cli->inbuf,smb_rcls);
- code = SVAL(cli->inbuf,smb_err);
- if (rcls == 0) return 0;
-
- if (eclass) *eclass = rcls;
- if (num ) *num = code;
-
- if (rcls == ERRDOS) {
- switch (code) {
- 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 ERROR_INVALID_NAME: return ENOENT;
- case ERRnosuchshare: return ENODEV;
- }
+ 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;
}
- if (rcls == ERRSRV) {
- switch (code) {
- case ERRbadpw: return EPERM;
- case ERRaccess: return EACCES;
- case ERRnoresource: return ENOMEM;
- case ERRinvdevice: return ENODEV;
- case ERRinvnetname: return ENODEV;
- }
+
+ /* 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_nt_error(cli)) {
+ status = cli_nt_error(cli);
+ return cli_errno_from_nt(status);
}
+
+ if (cli_is_dos_error(cli)) {
+ uint8 eclass;
+ uint32 ecode;
+
+ cli_dos_error(cli, &eclass, &ecode);
+ status = dos_to_ntstatus(eclass, ecode);
+ return cli_errno_from_nt(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;
+ }
+
/* for other cases */
return EINVAL;
}
+/* 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;
+
+ /* A socket error is always an error. */
+ if (cli->fd == -1 && cli->smb_rw_error != 0) {
+ 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 */
+
+ 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);
+
+ /* A socket error is always an NT error. */
+ if (cli->fd == -1 && cli->smb_rw_error != 0) {
+ return True;
+ }
+
+ 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);
+
+ /* A socket error is always a DOS error. */
+ if (cli->fd == -1 && cli->smb_rw_error != 0) {
+ return True;
+ }
+
+ return cli_is_error(cli) && !(flgs2 & FLAGS2_32_BIT_ERROR_CODES);
+}
+
+/* Return the last error always as an NTSTATUS. */
+
+NTSTATUS cli_get_nt_error(struct cli_state *cli)
+{
+ if (cli_is_nt_error(cli)) {
+ return cli_nt_error(cli);
+ } else if (cli_is_dos_error(cli)) {
+ uint32 ecode;
+ uint8 eclass;
+ cli_dos_error(cli, &eclass, &ecode);
+ return dos_to_ntstatus(eclass, ecode);
+ } else {
+ /* Something went wrong, we don't know what. */
+ return NT_STATUS_UNSUCCESSFUL;
+ }
+}
+
+/* Push an error code into the inbuf to be returned on the next
+ * query. */
+
+void cli_set_nt_error(struct cli_state *cli, NTSTATUS status)
+{
+ SSVAL(cli->inbuf,smb_flg2, SVAL(cli->inbuf,smb_flg2)|FLAGS2_32_BIT_ERROR_CODES);
+ SIVAL(cli->inbuf, smb_rcls, NT_STATUS_V(status));
+}
git.samba.org / samba.git / blobdiff