freebsd-dev/sys/netsmb/smb_subr.h
Marcel Moolenaar e51fe8759d Rewrite the code that uses the try/catch paradigm implemented by
goto and abstracted by the itry, ithrow and icatch macros (among
others). The problem with this code is that it doesn't compile on
ia64. The compiler is sufficiently confused that it inserts a call
to __ia64_save_stack_nonlock(). This is a magic function that saves
enough of the stack to allow for non-local gotos, such as would be
the case for nested functions. Since it's not a compiler defined
function, it needs a runtime implementation. This we have not in a
standalone compilation as is the kernel.

There's no indication that the compiler is not confused on other
platforms. It's likely that saving the stack in those cases is
trivial enough that the compiler doesn't need to off-load the
complexity to a runtime function.

The code is believed to be correctly translated, but has not been
tested. The overall structure remained the same, except that it's
made explicit. The macros that implement the try/catch construct
have been removed to avoid reintroduction of their use. It's not
a good idea.

In general the rewritten code is slightly more optimal in that it
doesn't need as much stack space and generally is smaller in size.

Found by: LINT
2003-08-23 21:43:33 +00:00

128 lines
4.3 KiB
C

/*
* Copyright (c) 2000-2001, Boris Popov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Boris Popov.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _NETSMB_SMB_SUBR_H_
#define _NETSMB_SMB_SUBR_H_
#ifndef _KERNEL
#error "This file shouldn't be included from userland programs"
#endif
#ifdef MALLOC_DECLARE
MALLOC_DECLARE(M_SMBTEMP);
#endif
#define SMBERROR(format, args...) printf("%s: "format, __func__ ,## args)
#define SMBPANIC(format, args...) printf("%s: "format, __func__ ,## args)
#ifdef SMB_SOCKET_DEBUG
#define SMBSDEBUG(format, args...) printf("%s: "format, __func__ ,## args)
#else
#define SMBSDEBUG(format, args...)
#endif
#ifdef SMB_IOD_DEBUG
#define SMBIODEBUG(format, args...) printf("%s: "format, __func__ ,## args)
#else
#define SMBIODEBUG(format, args...)
#endif
#ifdef SMB_SOCKETDATA_DEBUG
void m_dumpm(struct mbuf *m);
#else
#define m_dumpm(m)
#endif
#define SMB_SIGMASK(set) \
(SIGISMEMBER(set, SIGINT) || SIGISMEMBER(set, SIGTERM) || \
SIGISMEMBER(set, SIGHUP) || SIGISMEMBER(set, SIGKILL) || \
SIGISMEMBER(set, SIGQUIT))
#define smb_suser(cred) suser_cred(cred, 0)
/*
* Compatibility wrappers for simple locks
*/
#include <sys/lock.h>
#include <sys/mutex.h>
#define smb_slock mtx
#define smb_sl_init(mtx, desc) mtx_init(mtx, desc, NULL, MTX_DEF)
#define smb_sl_destroy(mtx) mtx_destroy(mtx)
#define smb_sl_lock(mtx) mtx_lock(mtx)
#define smb_sl_unlock(mtx) mtx_unlock(mtx)
#define SMB_STRFREE(p) do { if (p) smb_strfree(p); } while(0)
typedef u_int16_t smb_unichar;
typedef smb_unichar *smb_uniptr;
/*
* Crediantials of user/process being processing in the connection procedures
*/
struct smb_cred {
struct thread * scr_td;
struct ucred * scr_cred;
};
extern smb_unichar smb_unieol;
struct mbchain;
struct smb_vc;
struct smb_rq;
void smb_makescred(struct smb_cred *scred, struct thread *td, struct ucred *cred);
int smb_td_intr(struct thread *);
char *smb_strdup(const char *s);
void *smb_memdup(const void *umem, int len);
char *smb_strdupin(char *s, int maxlen);
void *smb_memdupin(void *umem, int len);
void smb_strtouni(u_int16_t *dst, const char *src);
void smb_strfree(char *s);
void smb_memfree(void *s);
void *smb_zmalloc(unsigned long size, struct malloc_type *type, int flags);
int smb_encrypt(const u_char *apwd, u_char *C8, u_char *RN);
int smb_ntencrypt(const u_char *apwd, u_char *C8, u_char *RN);
int smb_maperror(int eclass, int eno);
int smb_put_dmem(struct mbchain *mbp, struct smb_vc *vcp,
const char *src, int len, int caseopt);
int smb_put_dstring(struct mbchain *mbp, struct smb_vc *vcp,
const char *src, int caseopt);
int smb_put_string(struct smb_rq *rqp, const char *src);
int smb_put_asunistring(struct smb_rq *rqp, const char *src);
#endif /* !_NETSMB_SMB_SUBR_H_ */