| Current Path : /sys/amd64/compile/hs32/modules/usr/src/sys/modules/usb/uath/@/netsmb/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/usb/uath/@/netsmb/smb_subr.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.
*
* 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/netsmb/smb_subr.c 230196 2012-01-16 05:15:13Z kevlo $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/sysctl.h>
#include <sys/socket.h>
#include <sys/signalvar.h>
#include <sys/mbuf.h>
#include <sys/iconv.h>
#include <netsmb/smb.h>
#include <netsmb/smb_conn.h>
#include <netsmb/smb_rq.h>
#include <netsmb/smb_subr.h>
MALLOC_DEFINE(M_SMBDATA, "SMBDATA", "Misc netsmb data");
MALLOC_DEFINE(M_SMBSTR, "SMBSTR", "netsmb string data");
MALLOC_DEFINE(M_SMBTEMP, "SMBTEMP", "Temp netsmb data");
smb_unichar smb_unieol = 0;
void
smb_makescred(struct smb_cred *scred, struct thread *td, struct ucred *cred)
{
if (td) {
scred->scr_td = td;
scred->scr_cred = cred ? cred : td->td_ucred;
} else {
scred->scr_td = NULL;
scred->scr_cred = cred ? cred : NULL;
}
}
int
smb_td_intr(struct thread *td)
{
struct proc *p;
sigset_t tmpset;
if (td == NULL)
return 0;
p = td->td_proc;
PROC_LOCK(p);
tmpset = p->p_siglist;
SIGSETOR(tmpset, td->td_siglist);
SIGSETNAND(tmpset, td->td_sigmask);
mtx_lock(&p->p_sigacts->ps_mtx);
SIGSETNAND(tmpset, p->p_sigacts->ps_sigignore);
mtx_unlock(&p->p_sigacts->ps_mtx);
if (SIGNOTEMPTY(td->td_siglist) && SMB_SIGMASK(tmpset)) {
PROC_UNLOCK(p);
return EINTR;
}
PROC_UNLOCK(p);
return 0;
}
char *
smb_strdup(const char *s)
{
char *p;
size_t len;
len = s ? strlen(s) + 1 : 1;
p = malloc(len, M_SMBSTR, M_WAITOK);
if (s)
bcopy(s, p, len);
else
*p = 0;
return p;
}
/*
* duplicate string from a user space.
*/
char *
smb_strdupin(char *s, size_t maxlen)
{
char *p, bt;
int error;
size_t len;
len = 0;
for (p = s; ;p++) {
if (copyin(p, &bt, 1))
return NULL;
len++;
if (maxlen && len > maxlen)
return NULL;
if (bt == 0)
break;
}
p = malloc(len, M_SMBSTR, M_WAITOK);
error = copyin(s, p, len);
if (error) {
free(p, M_SMBSTR);
return (NULL);
}
return p;
}
/*
* duplicate memory block from a user space.
*/
void *
smb_memdupin(void *umem, size_t len)
{
char *p;
if (len > 8 * 1024)
return NULL;
p = malloc(len, M_SMBSTR, M_WAITOK);
if (copyin(umem, p, len) == 0)
return p;
free(p, M_SMBSTR);
return NULL;
}
/*
* duplicate memory block in the kernel space.
*/
void *
smb_memdup(const void *umem, int len)
{
char *p;
if (len > 8 * 1024)
return NULL;
p = malloc(len, M_SMBSTR, M_WAITOK);
if (p == NULL)
return NULL;
bcopy(umem, p, len);
return p;
}
void
smb_strfree(char *s)
{
free(s, M_SMBSTR);
}
void
smb_memfree(void *s)
{
free(s, M_SMBSTR);
}
void *
smb_zmalloc(size_t size, struct malloc_type *type, int flags)
{
return malloc(size, type, flags | M_ZERO);
}
void
smb_strtouni(u_int16_t *dst, const char *src)
{
while (*src) {
*dst++ = htole16(*src++);
}
*dst = 0;
}
#ifdef SMB_SOCKETDATA_DEBUG
void
m_dumpm(struct mbuf *m) {
char *p;
size_t len;
printf("d=");
while(m) {
p=mtod(m,char *);
len=m->m_len;
printf("(%zu)",len);
while(len--){
printf("%02x ",((int)*(p++)) & 0xff);
}
m=m->m_next;
};
printf("\n");
}
#endif
int
smb_maperror(int eclass, int eno)
{
if (eclass == 0 && eno == 0)
return 0;
switch (eclass) {
case ERRDOS:
switch (eno) {
case ERRbadfunc:
case ERRbadmcb:
case ERRbadenv:
case ERRbadformat:
case ERRrmuns:
return EINVAL;
case ERRbadfile:
case ERRbadpath:
case ERRremcd:
case 66: /* nt returns it when share not available */
case 67: /* observed from nt4sp6 when sharename wrong */
return ENOENT;
case ERRnofids:
return EMFILE;
case ERRnoaccess:
case ERRbadshare:
return EACCES;
case ERRbadfid:
return EBADF;
case ERRnomem:
return ENOMEM; /* actually remote no mem... */
case ERRbadmem:
return EFAULT;
case ERRbadaccess:
return EACCES;
case ERRbaddata:
return E2BIG;
case ERRbaddrive:
case ERRnotready: /* nt */
return ENXIO;
case ERRdiffdevice:
return EXDEV;
case ERRnofiles:
return 0; /* eeof ? */
return ETXTBSY;
case ERRlock:
return EDEADLK;
case ERRfilexists:
return EEXIST;
case 123: /* dunno what is it, but samba maps as noent */
return ENOENT;
case 145: /* samba */
return ENOTEMPTY;
case ERRnotlocked:
return 0; /* file become unlocked */
case 183:
return EEXIST;
case ERRquota:
return EDQUOT;
}
break;
case ERRSRV:
switch (eno) {
case ERRerror:
return EINVAL;
case ERRbadpw:
case ERRpasswordExpired:
return EAUTH;
case ERRaccess:
return EACCES;
case ERRinvnid:
return ENETRESET;
case ERRinvnetname:
SMBERROR("NetBIOS name is invalid\n");
return EAUTH;
case 3: /* reserved and returned */
return EIO;
case ERRaccountExpired:
case ERRbadClient:
case ERRbadLogonTime:
return EPERM;
case ERRnosupport:
return EBADRPC;
}
break;
case ERRHRD:
switch (eno) {
case ERRnowrite:
return EROFS;
case ERRbadunit:
return ENODEV;
case ERRnotready:
case ERRbadcmd:
case ERRdata:
return EIO;
case ERRbadreq:
return EBADRPC;
case ERRbadshare:
return ETXTBSY;
case ERRlock:
return EDEADLK;
}
break;
}
SMBERROR("Unmapped error %d:%d\n", eclass, eno);
return EBADRPC;
}
static int
smb_copy_iconv(struct mbchain *mbp, c_caddr_t src, caddr_t dst,
size_t *srclen, size_t *dstlen)
{
int error;
size_t inlen = *srclen, outlen = *dstlen;
error = iconv_conv((struct iconv_drv*)mbp->mb_udata, &src, &inlen,
&dst, &outlen);
if (inlen != *srclen || outlen != *dstlen) {
*srclen -= inlen;
*dstlen -= outlen;
return 0;
} else
return error;
}
int
smb_put_dmem(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
size_t size, int caseopt)
{
struct iconv_drv *dp = vcp->vc_toserver;
if (size == 0)
return 0;
if (dp == NULL) {
return mb_put_mem(mbp, src, size, MB_MSYSTEM);
}
mbp->mb_copy = smb_copy_iconv;
mbp->mb_udata = dp;
if (SMB_UNICODE_STRINGS(vcp))
mb_put_padbyte(mbp);
return mb_put_mem(mbp, src, size, MB_MCUSTOM);
}
int
smb_put_dstring(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
int caseopt)
{
int error;
error = smb_put_dmem(mbp, vcp, src, strlen(src), caseopt);
if (error)
return error;
if (SMB_UNICODE_STRINGS(vcp))
return mb_put_uint16le(mbp, 0);
return mb_put_uint8(mbp, 0);
}
int
smb_put_asunistring(struct smb_rq *rqp, const char *src)
{
struct mbchain *mbp = &rqp->sr_rq;
struct iconv_drv *dp = rqp->sr_vc->vc_toserver;
u_char c;
int error;
while (*src) {
iconv_convmem(dp, &c, src++, 1);
error = mb_put_uint16le(mbp, c);
if (error)
return error;
}
return mb_put_uint16le(mbp, 0);
}