2 * Copyright (c) 2000-2001 Boris Popov
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by Boris Popov.
16 * 4. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $FreeBSD: src/sys/netsmb/smb_subr.c,v 1.1.2.2 2001/09/03 08:55:11 bp Exp $
33 * $DragonFly: src/sys/netproto/smb/smb_subr.c,v 1.30 2008/01/06 16:55:53 swildner Exp $
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/kthread.h>
39 #include <sys/malloc.h>
43 #include <sys/resourcevar.h>
44 #include <sys/sysctl.h>
45 #include <sys/socket.h>
46 #include <sys/signalvar.h>
48 #include <sys/unistd.h>
50 #include <sys/signal2.h>
51 #include <sys/mplock2.h>
53 #include <machine/stdarg.h>
55 #include <sys/iconv.h>
62 MALLOC_DEFINE(M_SMBDATA, "SMBDATA", "Misc netsmb data");
63 MALLOC_DEFINE(M_SMBSTR, "SMBSTR", "netsmb string data");
64 MALLOC_DEFINE(M_SMBTEMP, "SMBTEMP", "Temp netsmb data");
66 smb_unichar smb_unieol = 0;
69 smb_makescred(struct smb_cred *scred, struct thread *td, struct ucred *cred)
72 if (td && td->td_proc) {
73 scred->scr_cred = cred ? cred : td->td_proc->p_ucred;
75 scred->scr_cred = cred ? cred : NULL;
80 smb_proc_intr(struct thread *td)
86 if (td == NULL || (p = td->td_proc) == NULL)
89 tmpset = lwp_sigpend(lp);
90 SIGSETNAND(tmpset, lp->lwp_sigmask);
91 SIGSETNAND(tmpset, p->p_sigignore);
92 if (SIGNOTEMPTY(tmpset) && SMB_SIGMASK(tmpset))
98 smb_strdup(const char *s)
103 len = s ? strlen(s) + 1 : 1;
104 p = kmalloc(len, M_SMBSTR, M_WAITOK);
113 * duplicate string from a user space.
116 smb_strdupin(char *s, int maxlen)
122 if (copyin(p, &bt, 1))
125 if (maxlen && len > maxlen)
130 p = kmalloc(len, M_SMBSTR, M_WAITOK);
136 * duplicate memory block from a user space.
139 smb_memdupin(void *umem, int len)
145 p = kmalloc(len, M_SMBSTR, M_WAITOK);
146 if (copyin(umem, p, len) == 0)
153 * duplicate memory block in the kernel space.
156 smb_memdup(const void *umem, int len)
162 p = kmalloc(len, M_SMBSTR, M_WAITOK);
180 smb_zmalloc(unsigned long size, struct malloc_type *type, int flags)
183 return kmalloc(size, type, flags | M_ZERO);
187 smb_strtouni(u_int16_t *dst, const char *src)
190 *dst++ = htoles(*src++);
195 #ifdef SMB_SOCKETDATA_DEBUG
197 m_dumpm(struct mbuf *m) {
206 kprintf("%02x ",((int)*(p++)) & 0xff);
215 smb_maperror(int eclass, int eno)
217 if (eclass == 0 && eno == 0)
231 case 66: /* nt returns it when share not available */
232 case 67: /* observed from nt4sp6 when sharename wrong */
242 return ENOMEM; /* actually remote no mem... */
250 case ERRnotready: /* nt */
255 return 0; /* eeof ? */
261 case 123: /* dunno what is it, but samba maps as noent */
263 case 145: /* samba */
280 SMBERROR("NetBIOS name is invalid\n");
282 case 3: /* reserved and returned */
284 case 2239: /* NT: account exists but disabled */
307 SMBERROR("Unmapped error %d:%d\n", eclass, eno);
312 smb_copy_iconv(struct mbchain *mbp, c_caddr_t src, caddr_t dst, size_t len)
316 return iconv_conv((struct iconv_drv*)mbp->mb_udata, &src, &len, &dst, &outlen);
320 smb_put_dmem(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
321 int size, int caseopt)
323 struct iconv_drv *dp = vcp->vc_toserver;
328 return mb_put_mem(mbp, src, size, MB_MSYSTEM);
330 mbp->mb_copy = smb_copy_iconv;
332 return mb_put_mem(mbp, src, size, MB_MCUSTOM);
336 smb_put_dstring(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
341 error = smb_put_dmem(mbp, vcp, src, strlen(src), caseopt);
344 return mb_put_uint8(mbp, 0);
348 smb_put_asunistring(struct smb_rq *rqp, const char *src)
350 struct mbchain *mbp = &rqp->sr_rq;
351 struct iconv_drv *dp = rqp->sr_vc->vc_toserver;
356 iconv_convmem(dp, &c, src++, 1);
357 error = mb_put_uint16le(mbp, c);
361 return mb_put_uint16le(mbp, 0);
365 * Create a kernel process/thread/whatever. It shares it's address space
366 * with proc0 - ie: kernel only.
368 * XXX only the SMB protocol uses this, we should convert this mess to a
369 * pure thread when possible.
372 smb_kthread_create(void (*func)(void *), void *arg,
373 struct proc **newpp, int flags, const char *fmt, ...)
380 error = fork1(&lwp0, RFMEM | RFFDG | RFPROC | flags, &p2);
384 /* save a global descriptor, if desired */
388 /* this is a non-swapped system process */
389 p2->p_flag |= P_SYSTEM;
390 p2->p_sigacts->ps_flag |= PS_NOCLDWAIT;
392 lp2 = ONLY_LWP_IN_PROC(p2);
394 /* set up arg0 for 'ps', et al */
396 kvsnprintf(p2->p_comm, sizeof(p2->p_comm), fmt, ap);
399 lp2->lwp_thread->td_ucred = crhold(proc0.p_ucred);
401 /* call the processes' main()... */
402 cpu_set_fork_handler(lp2,
403 (void (*)(void *, struct trapframe *))func, arg);
404 start_forked_proc(&lwp0, p2);
410 smb_kthread_exit(void)
416 * smb_sleep() icky compat routine. Leave the token held through the tsleep
417 * to interlock against the sleep. Remember that the token could be lost
418 * since we blocked, so reget or release as appropriate.
421 smb_sleep(void *chan, struct smb_slock *sl, int slpflags, const char *wmesg, int timo)
426 tsleep_interlock(chan, slpflags);
428 error = tsleep(chan, slpflags | PINTERLOCKED, wmesg, timo);
429 if ((slpflags & PDROP) == 0)
432 error = tsleep(chan, slpflags, wmesg, timo);