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>
47 #include <sys/signal2.h>
49 #include <sys/unistd.h>
51 #include <machine/stdarg.h>
53 #include <sys/iconv.h>
60 MALLOC_DEFINE(M_SMBDATA, "SMBDATA", "Misc netsmb data");
61 MALLOC_DEFINE(M_SMBSTR, "SMBSTR", "netsmb string data");
62 MALLOC_DEFINE(M_SMBTEMP, "SMBTEMP", "Temp netsmb data");
64 smb_unichar smb_unieol = 0;
67 smb_makescred(struct smb_cred *scred, struct thread *td, struct ucred *cred)
70 if (td && td->td_proc) {
71 scred->scr_cred = cred ? cred : td->td_proc->p_ucred;
73 scred->scr_cred = cred ? cred : NULL;
78 smb_proc_intr(struct thread *td)
84 if (td == NULL || (p = td->td_proc) == NULL)
87 tmpset = lwp_sigpend(lp);
88 SIGSETNAND(tmpset, lp->lwp_sigmask);
89 SIGSETNAND(tmpset, p->p_sigignore);
90 if (SIGNOTEMPTY(tmpset) && SMB_SIGMASK(tmpset))
96 smb_strdup(const char *s)
101 len = s ? strlen(s) + 1 : 1;
102 p = kmalloc(len, M_SMBSTR, M_WAITOK);
111 * duplicate string from a user space.
114 smb_strdupin(char *s, int maxlen)
120 if (copyin(p, &bt, 1))
123 if (maxlen && len > maxlen)
128 p = kmalloc(len, M_SMBSTR, M_WAITOK);
134 * duplicate memory block from a user space.
137 smb_memdupin(void *umem, int len)
143 p = kmalloc(len, M_SMBSTR, M_WAITOK);
144 if (copyin(umem, p, len) == 0)
151 * duplicate memory block in the kernel space.
154 smb_memdup(const void *umem, int len)
160 p = kmalloc(len, M_SMBSTR, M_WAITOK);
178 smb_zmalloc(unsigned long size, struct malloc_type *type, int flags)
181 return kmalloc(size, type, flags | M_ZERO);
185 smb_strtouni(u_int16_t *dst, const char *src)
188 *dst++ = htoles(*src++);
193 #ifdef SMB_SOCKETDATA_DEBUG
195 m_dumpm(struct mbuf *m) {
204 kprintf("%02x ",((int)*(p++)) & 0xff);
213 smb_maperror(int eclass, int eno)
215 if (eclass == 0 && eno == 0)
229 case 66: /* nt returns it when share not available */
230 case 67: /* observed from nt4sp6 when sharename wrong */
240 return ENOMEM; /* actually remote no mem... */
248 case ERRnotready: /* nt */
253 return 0; /* eeof ? */
259 case 123: /* dunno what is it, but samba maps as noent */
261 case 145: /* samba */
278 SMBERROR("NetBIOS name is invalid\n");
280 case 3: /* reserved and returned */
282 case 2239: /* NT: account exists but disabled */
305 SMBERROR("Unmapped error %d:%d\n", eclass, eno);
310 smb_copy_iconv(struct mbchain *mbp, c_caddr_t src, caddr_t dst, size_t len)
314 return iconv_conv((struct iconv_drv*)mbp->mb_udata, &src, &len, &dst, &outlen);
318 smb_put_dmem(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
319 int size, int caseopt)
321 struct iconv_drv *dp = vcp->vc_toserver;
326 return mb_put_mem(mbp, src, size, MB_MSYSTEM);
328 mbp->mb_copy = smb_copy_iconv;
330 return mb_put_mem(mbp, src, size, MB_MCUSTOM);
334 smb_put_dstring(struct mbchain *mbp, struct smb_vc *vcp, const char *src,
339 error = smb_put_dmem(mbp, vcp, src, strlen(src), caseopt);
342 return mb_put_uint8(mbp, 0);
346 smb_put_asunistring(struct smb_rq *rqp, const char *src)
348 struct mbchain *mbp = &rqp->sr_rq;
349 struct iconv_drv *dp = rqp->sr_vc->vc_toserver;
354 iconv_convmem(dp, &c, src++, 1);
355 error = mb_put_uint16le(mbp, c);
359 return mb_put_uint16le(mbp, 0);
363 * Create a kernel process/thread/whatever. It shares it's address space
364 * with proc0 - ie: kernel only.
366 * XXX only the SMB protocol uses this, we should convert this mess to a
367 * pure thread when possible.
370 kthread_create2(void (*func)(void *), void *arg,
371 struct proc **newpp, int flags, const char *fmt, ...)
378 error = fork1(&lwp0, RFMEM | RFFDG | RFPROC | flags, &p2);
382 /* save a global descriptor, if desired */
386 /* this is a non-swapped system process */
387 p2->p_flag |= P_SYSTEM;
388 p2->p_sigacts->ps_flag |= PS_NOCLDWAIT;
390 lp2 = ONLY_LWP_IN_PROC(p2);
392 /* set up arg0 for 'ps', et al */
394 kvsnprintf(p2->p_comm, sizeof(p2->p_comm), fmt, ap);
397 lp2->lwp_thread->td_ucred = crhold(proc0.p_ucred);
399 /* call the processes' main()... */
400 cpu_set_fork_handler(lp2,
401 (void (*)(void *, struct trapframe *))func, arg);
402 start_forked_proc(&lwp0, p2);
414 * smb_sleep() icky compat routine. Leave the token held through the tsleep
415 * to interlock against the sleep. Remember that the token could be lost
416 * since we blocked, so reget or release as appropriate.
419 smb_sleep(void *chan, struct smb_slock *sl, int slpflags, const char *wmesg, int timo)
424 tsleep_interlock(chan, slpflags);
426 error = tsleep(chan, slpflags | PINTERLOCKED, wmesg, timo);
427 if ((slpflags & PDROP) == 0)
430 error = tsleep(chan, slpflags, wmesg, timo);