364 lines
8.0 KiB
C
364 lines
8.0 KiB
C
/* $NetBSD: smb_subr.c,v 1.17 2003/04/07 11:13:24 jdolecek Exp $ */
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/*
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* Copyright (c) 2000-2001 Boris Popov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Boris Popov.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* FreeBSD: src/sys/netsmb/smb_subr.c,v 1.6 2002/04/17 03:14:28 bp Exp
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: smb_subr.c,v 1.17 2003/04/07 11:13:24 jdolecek Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/proc.h>
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#include <sys/lock.h>
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#include <sys/sysctl.h>
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#include <sys/socket.h>
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#include <sys/signal.h>
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#include <sys/signalvar.h>
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#include <sys/mbuf.h>
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#include <sys/socketvar.h> /* for M_SONAME */
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#include <netsmb/iconv.h>
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#include <netsmb/smb.h>
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#include <netsmb/smb_conn.h>
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#include <netsmb/smb_rq.h>
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#include <netsmb/smb_subr.h>
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const smb_unichar smb_unieol = 0;
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static MALLOC_DEFINE(M_SMBSTR, "smbstr", "SMB strings");
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MALLOC_DEFINE(M_SMBTEMP, "smbtemp", "Temp netsmb data");
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void
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smb_makescred(struct smb_cred *scred, struct proc *p, struct ucred *cred)
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{
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if (p) {
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scred->scr_p = p;
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scred->scr_cred = cred ? cred : p->p_ucred;
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} else {
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scred->scr_p = NULL;
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scred->scr_cred = cred ? cred : NULL;
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}
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}
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int
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smb_proc_intr(struct proc *p)
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{
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if (p == NULL)
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return 0;
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if (!sigemptyset(&p->p_sigctx.ps_siglist)
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&& SMB_SIGMASK(p->p_sigctx.ps_siglist))
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return EINTR;
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return 0;
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}
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char *
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smb_strdup(const char *s)
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{
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char *p;
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int len;
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len = s ? strlen(s) + 1 : 1;
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p = malloc(len, M_SMBSTR, M_WAITOK);
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if (s)
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bcopy(s, p, len);
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else
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*p = 0;
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return p;
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}
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/*
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* duplicate string from a user space.
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*/
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char *
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smb_strdupin(char *s, int maxlen)
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{
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char *p, bt;
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int len = 0;
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for (p = s; ;p++) {
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if (copyin(p, &bt, 1))
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return NULL;
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len++;
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if (maxlen && len > maxlen)
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return NULL;
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if (bt == 0)
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break;
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}
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p = malloc(len, M_SMBSTR, M_WAITOK);
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copyin(s, p, len);
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return p;
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}
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/*
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* duplicate memory block from a user space.
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*/
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void *
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smb_memdupin(void *umem, int len)
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{
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char *p;
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if (len > 8 * 1024)
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return NULL;
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p = malloc(len, M_SMBSTR, M_WAITOK);
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if (copyin(umem, p, len) == 0)
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return p;
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free(p, M_SMBSTR);
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return NULL;
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}
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void
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smb_strfree(char *s)
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{
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free(s, M_SMBSTR);
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}
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void
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smb_memfree(void *s)
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{
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free(s, M_SMBSTR);
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}
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void *
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smb_zmalloc(unsigned long size, struct malloc_type *type, int flags)
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{
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return malloc(size, type, flags | M_ZERO);
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}
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void
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smb_strtouni(u_int16_t *dst, const char *src)
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{
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while (*src) {
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*dst++ = htole16(*src++);
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}
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*dst = 0;
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}
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#ifdef SMB_SOCKETDATA_DEBUG
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void
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m_dumpm(struct mbuf *m) {
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char *p;
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int len;
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printf("d=");
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while(m) {
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p=mtod(m,char *);
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len=m->m_len;
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printf("(%d)",len);
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while(len--){
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printf("%02x ",((int)*(p++)) & 0xff);
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}
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m=m->m_next;
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};
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printf("\n");
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}
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#endif
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int
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smb_maperror(int eclass, int eno)
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{
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if (eclass == 0 && eno == 0)
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return 0;
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switch (eclass) {
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case ERRDOS:
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switch (eno) {
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case ERRbadfunc:
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case ERRbadmcb:
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case ERRbadenv:
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case ERRbadformat:
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case ERRrmuns:
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return EINVAL;
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case ERRnofiles:
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case ERRbadfile:
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case ERRbadpath:
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case ERRremcd:
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case ERRnoipc: /* nt returns it when share not available */
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case ERRnosuchshare: /* observed from nt4sp6 when sharename wrong */
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return ENOENT;
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case ERRnofids:
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return EMFILE;
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case ERRnoaccess:
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case ERRbadshare:
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return EACCES;
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case ERRbadfid:
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return EBADF;
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case ERRnomem:
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return ENOMEM; /* actually remote no mem... */
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case ERRbadmem:
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return EFAULT;
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case ERRbadaccess:
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return EACCES;
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case ERRbaddata:
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return E2BIG;
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case ERRbaddrive:
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case ERRnotready: /* nt */
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return ENXIO;
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case ERRdiffdevice:
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return EXDEV;
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case ERRlock:
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return EDEADLK;
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case ERRfilexists:
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return EEXIST;
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case ERRinvalidname: /* dunno what is it, but samba maps as noent */
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return ENOENT;
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case ERRdirnempty: /* samba */
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return ENOTEMPTY;
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case ERRrename:
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return EEXIST;
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case ERRquota:
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return EDQUOT;
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case ERRnotlocked:
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return EBUSY;
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case NT_STATUS_NOTIFY_ENUM_DIR:
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return EMSGSIZE;
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}
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break;
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case ERRSRV:
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switch (eno) {
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case ERRerror:
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return EINVAL;
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case ERRbadpw:
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case ERRpasswordExpired:
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return EAUTH;
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case ERRaccess:
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return EACCES;
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case ERRinvnid:
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return ENETRESET;
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case ERRinvnetname:
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SMBERROR("NetBIOS name is invalid\n");
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return EAUTH;
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case ERRbadtype: /* reserved and returned */
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return EIO;
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case ERRaccountExpired:
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case ERRbadClient:
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case ERRbadLogonTime:
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return EPERM;
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case ERRnosupport:
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return EBADRPC;
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}
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break;
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case ERRHRD:
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switch (eno) {
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case ERRnowrite:
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return EROFS;
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case ERRbadunit:
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return ENODEV;
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case ERRnotready:
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case ERRbadcmd:
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case ERRdata:
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return EIO;
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case ERRbadreq:
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return EBADRPC;
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case ERRbadshare:
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return ETXTBSY;
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case ERRlock:
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return EDEADLK;
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case ERRgeneral:
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/* returned e.g. for NT CANCEL SMB by Samba */
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return ECANCELED;
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}
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break;
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}
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SMBERROR("Unmapped error %d:%d\n", eclass, eno);
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return EBADRPC;
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}
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static int
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smb_copy_iconv(struct mbchain *mbp, const caddr_t src, caddr_t dst, size_t len)
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{
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size_t outlen = len;
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return iconv_conv((struct iconv_drv*)mbp->mb_udata, (const char **)(&src), &len, &dst, &outlen);
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}
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int
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smb_put_dmem(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
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int size, int caseopt)
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{
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struct iconv_drv *dp = vcp->vc_toserver;
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if (size == 0)
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return 0;
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if (dp == NULL) {
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return mb_put_mem(mbp, (caddr_t)src, size, MB_MSYSTEM);
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}
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mbp->mb_copy = smb_copy_iconv;
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mbp->mb_udata = dp;
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return mb_put_mem(mbp, (caddr_t)src, size, MB_MCUSTOM);
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}
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int
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smb_put_dstring(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
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int caseopt)
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{
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int error;
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error = smb_put_dmem(mbp, vcp, src, strlen(src), caseopt);
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if (error)
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return error;
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return mb_put_uint8(mbp, 0);
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}
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#if 0
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int
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smb_put_asunistring(struct smb_rq *rqp, const char *src)
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{
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struct mbchain *mbp = &rqp->sr_rq;
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struct iconv_drv *dp = rqp->sr_vc->vc_toserver;
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u_char c;
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int error;
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while (*src) {
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iconv_convmem(dp, &c, src++, 1);
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error = mb_put_uint16le(mbp, c);
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if (error)
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return error;
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}
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return mb_put_uint16le(mbp, 0);
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}
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#endif
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struct sockaddr *
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dup_sockaddr(struct sockaddr *sa, int canwait)
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{
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struct sockaddr *sa2;
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sa2 = malloc(sa->sa_len, M_SONAME, canwait ? M_WAITOK : M_NOWAIT);
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if (sa2)
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memcpy(sa2, sa, sa->sa_len);
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return sa2;
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}
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