usr/src/sys/hp300/hpux/hpux_net.c

/*
 * Copyright (c) 1988 University of Utah.
 * Copyright (c) 1990 The Regents of the University of California.
 * All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * the Systems Programming Group of the University of Utah Computer
 * Science Department.
 *
 * 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 the University of
 *      California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
 *
 * from: Utah $Hdr: hpux_net.c 1.33 89/08/23$
 *
 *      @(#)hpux_net.c  7.7 (Berkeley) 2/13/91
 */

/*
 * Network related HP-UX compatibility routines
 */

#ifdef HPUXCOMPAT

#include "sys/param.h"
#include "sys/systm.h"
#include "sys/kernel.h"
#include "sys/time.h"
#include "sys/errno.h"
#include "sys/proc.h"
#include "sys/file.h"
#include "sys/mbuf.h"
#include "sys/socket.h"
#include "sys/socketvar.h"
#include "sys/uio.h"
#include "sys/ktrace.h"
#include "hpux.h"

#define MINBSDIPCCODE   0x3EE
#define NUMBSDIPC       32

/*
 * HPUX netioctl() to BSD syscall map.
 * Indexed by callno - MINBSDIPCCODE
 */
extern int socket(), listen(), bind(), oaccept(), connect(), orecv();
extern int osend(), shutdown(), ogetsockname(), sendto();
extern int orecvfrom(), ogetpeername();
int hpuxgetsockopt(), hpuxsetsockopt();

struct hpuxtobsdipc {
        int (*rout)();
        int nargs;
} hpuxtobsdipc[NUMBSDIPC] = {
        socket,         3, /* 3ee */    listen,         2, /* 3ef */
        bind,           3, /* 3f0 */    oaccept,        3, /* 3f1 */
        connect,        3, /* 3f2 */    orecv,          4, /* 3f3 */
        osend,          4, /* 3f4 */    shutdown,       2, /* 3f5 */
        ogetsockname,   3, /* 3f6 */    hpuxsetsockopt, 5, /* 3f7 */
        sendto,         6, /* 3f8 */    orecvfrom,      6, /* 3f9 */
        ogetpeername,   3, /* 3fa */    NULL,           0, /* 3fb */
        NULL,           0, /* 3fc */    NULL,           0, /* 3fd */
        NULL,           0, /* 3fe */    NULL,           0, /* 3ff */
        NULL,           0, /* 400 */    NULL,           0, /* 401 */
        NULL,           0, /* 402 */    NULL,           0, /* 403 */
        NULL,           0, /* 404 */    NULL,           0, /* 405 */
        NULL,           0, /* 406 */    NULL,           0, /* 407 */
        NULL,           0, /* 408 */    NULL,           0, /* 409 */
        NULL,           0, /* 40a */    hpuxgetsockopt, 5, /* 40b */
        NULL,           0, /* 40c */    NULL,           0, /* 40d */
};

/*
 * Single system call entry to BSD style IPC.
 * Gleened from disassembled libbsdipc.a syscall entries.
 */
hpuxnetioctl(p, uap, retval)
        struct proc *p;
        struct args {
                int     call;
                int     *args;
        } *uap;
        int *retval;
{
        int *args, i;
        register int code;
        int error;

        args = uap->args;
        code = uap->call - MINBSDIPCCODE;
        if (code < 0 || code >= NUMBSDIPC || hpuxtobsdipc[code].rout == NULL)
                return (EINVAL);
        if ((i = hpuxtobsdipc[code].nargs * sizeof (int)) &&
            (error = copyin((caddr_t)args, (caddr_t)uap, (u_int)i))) {
#ifdef KTRACE
                if (KTRPOINT(p, KTR_SYSCALL))
                        ktrsyscall(p->p_tracep, code + MINBSDIPCCODE,
                                   hpuxtobsdipc[code].nargs);
#endif
                return (error);
        }
#ifdef KTRACE
        if (KTRPOINT(p, KTR_SYSCALL))
                ktrsyscall(p->p_tracep, code + MINBSDIPCCODE,
                           hpuxtobsdipc[code].nargs);
#endif
        return ((*hpuxtobsdipc[code].rout)(p, uap, retval));
}

hpuxsetsockopt(p, uap, retval)
        struct proc *p;
        struct args {
                int     s;
                int     level;
                int     name;
                caddr_t val;
                int     valsize;
        } *uap;
        int *retval;
{
        struct file *fp;
        struct mbuf *m = NULL;
        int tmp, error;

        if (error = getsock(p->p_fd, uap->s, &fp))
                return (error);
        if (uap->valsize > MLEN)
                return (EINVAL);
        if (uap->val) {
                m = m_get(M_WAIT, MT_SOOPTS);
                if (m == NULL)
                        return (ENOBUFS);
                if (error = copyin(uap->val, mtod(m, caddr_t),
                    (u_int)uap->valsize)) {
                        (void) m_free(m);
                        return (error);
                }
                if (uap->name == SO_LINGER) {
                        tmp = *mtod(m, int *);
                        mtod(m, struct linger *)->l_onoff = 1;
                        mtod(m, struct linger *)->l_linger = tmp;
                        m->m_len = sizeof(struct linger);
                } else
                        m->m_len = uap->valsize;
        } else if (uap->name == ~SO_LINGER) {
                m = m_get(M_WAIT, MT_SOOPTS);
                if (m) {
                        uap->name = SO_LINGER;
                        mtod(m, struct linger *)->l_onoff = 0;
                        m->m_len = sizeof(struct linger);
                }
        }
        return (sosetopt((struct socket *)fp->f_data, uap->level,
            uap->name, m));
}

hpuxgetsockopt(p, uap, retval)
        struct proc *p;
        struct args {
                int     s;
                int     level;
                int     name;
                caddr_t val;
                int     *avalsize;
        } *uap;
        int *retval;
{
        struct file *fp;
        struct mbuf *m = NULL;
        int valsize, error;

        if (error = getsock(p->p_fd, uap->s, &fp))
                return (error);
        if (uap->val) {
                if (error = copyin((caddr_t)uap->avalsize, (caddr_t)&valsize,
                    sizeof (valsize)))
                        return (error);
        } else
                valsize = 0;
        if (error = sogetopt((struct socket *)fp->f_data, uap->level,
            uap->name, &m))
                goto bad;
        if (uap->val && valsize && m != NULL) {
                if (uap->name == SO_LINGER) {
                        if (mtod(m, struct linger *)->l_onoff)
                                *mtod(m, int *) = mtod(m, struct linger *)->l_linger;
                        else
                                *mtod(m, int *) = 0;
                        m->m_len = sizeof(int);
                }
                if (valsize > m->m_len)
                        valsize = m->m_len;
                error = copyout(mtod(m, caddr_t), uap->val, (u_int)valsize);
                if (error == 0)
                        error = copyout((caddr_t)&valsize,
                            (caddr_t)uap->avalsize, sizeof (valsize));
        }
bad:
        if (m != NULL)
                (void) m_free(m);
        return (error);
}
#endif