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- /*
- * This file is part of ixemul.library for the Amiga.
- * Copyright (C) 1991, 1992 Markus M. Wild
- * Portions Copyright (C) 1996 by Jeff Shepherd
- * Portions Copyright (C) 1996 by Hans Verkuil
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #define _KERNEL
- #include "ixemul.h"
- #include "kprintf.h"
-
- #include <sys/socket.h>
- #include <sys/socketvar.h>
- #include <sys/unix_socket.h>
- #include <sys/ioctl.h>
- #include <net/if.h>
- #include <net/route.h>
- #include <netinet/in.h>
- #include <machine/param.h>
- #include <string.h>
-
- static struct file *getsock (int fdes);
- static int soo_read (struct file *fp, char *buf, int len);
- static int soo_write (struct file *fp, char *buf, int len);
- static int soo_ioctl (struct file *fp, int cmd, int inout, int arglen, caddr_t data);
- static int soo_select (struct file *fp, int select_cmd, int io_mode, fd_set *ignored, u_long *also_ignored);
- static int soo_close (struct file *fp);
- void _set_socket_params(struct file *fp, int type);
-
- static void socket_cleanup(int ostat)
- {
- if (CURSIG (&u))
- SetSignal (0, SIGBREAKF_CTRL_C);
-
- u.p_stat = ostat;
-
- if (errno == EINTR)
- setrun (FindTask (0));
-
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- }
-
- static void socket_cleanup_epipe(int ostat)
- {
- if (CURSIG (&u))
- SetSignal (0, SIGBREAKF_CTRL_C);
-
- u.p_stat = ostat;
-
- /* the library doesn't send this to us of course ;-) */
- if (errno == EPIPE)
- _psignal (FindTask (0), SIGPIPE);
-
- if (errno == EINTR)
- setrun (FindTask (0));
-
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- }
-
- int
- socket (int domain, int type, int protocol)
- {
- struct file *fp;
- int fd, err, ostat, omask;
-
- if (!u.u_ixnetbase)
- {
- errno = ENOSYS;
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return -1;
- }
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
- omask = syscall (SYS_sigsetmask, ~0);
-
- do
- {
- if ((err = falloc (&fp, &fd)))
- break;
-
- fp->f_so = netcall(NET__socket, domain, type, protocol);
- err = (fp->f_so == -1) ? errno : 0;
-
- if (err)
- {
- /* free the allocated fd */
- u.u_ofile[fd] = 0;
- fp->f_count = 0;
- break;
- }
-
- _set_socket_params(fp, domain);
- }
- while (0);
-
- syscall (SYS_sigsetmask, omask);
- errno = err;
- socket_cleanup(ostat);
- return err ? -1 : fd;
- }
-
-
- int
- bind (int s, const struct sockaddr *name, int namelen)
- {
- struct file *fp = getsock (s);
- int ostat, error;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
- error = netcall(NET__bind, fp, name, namelen);
- socket_cleanup(ostat);
- return error;
- }
-
- int
- listen (int s, int backlog)
- {
- struct file *fp = getsock (s);
- int ostat, error;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- error = netcall(NET__listen, fp, backlog);
- socket_cleanup(ostat);
- return error;
- }
-
- int
- accept (int s, struct sockaddr *name, int *namelen)
- {
- struct file *fp = getsock (s), *fp2;
- int err, fd2, ostat;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- do
- {
- /* first try to get a new descriptor. If that fails, don't even
- bother to call the library */
- if ((err = falloc (&fp2, &fd2)))
- break;
-
- fp2->f_so = netcall(NET__accept, fp, name, namelen);
- err = (fp2->f_so == -1) ? errno : 0;
- if (err)
- {
- /* the second file */
- u.u_ofile[fd2] = 0;
- fp2->f_count = 0;
- break;
- }
- _set_socket_params(fp2, (fp->f_type == DTYPE_SOCKET) ? AF_INET : AF_UNIX);
- }
- while (0);
-
- errno = err;
- socket_cleanup(ostat);
- return err ? -1 : fd2;
- }
-
-
- int
- connect (int s, const struct sockaddr *name, int namelen)
- {
- struct file *fp = getsock (s);
- int ostat, error;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- error = netcall(NET__connect, fp, name, namelen);
- socket_cleanup(ostat);
- return error;
- }
-
- int
- socketpair (int domain, int type, int protocol, int sv[2])
- {
- errno = EPFNOSUPPORT;
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return -1;
- }
-
- int
- sendto (int s, const void *buf, int len, int flags, const struct sockaddr *to, int tolen)
- {
- struct file *fp = getsock (s);
- int ostat;
- int rc;
-
- if (! fp || fp->f_type == DTYPE_USOCKET)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- rc = netcall(NET__sendto, fp, buf, len, flags, to, tolen);
- socket_cleanup_epipe(ostat);
- return rc;
- }
-
-
- int
- send (int s, const void *buf, int len, int flags)
- {
- struct file *fp = getsock (s);
- int ostat;
- int rc;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- rc = netcall(NET__send, fp, buf, len, flags);
- socket_cleanup_epipe(ostat);
- return rc;
- }
-
-
- int
- sendmsg (int s, const struct msghdr *msg, int flags)
- {
- struct file *fp = getsock (s);
- int ostat, rc;
-
- if (!fp || fp->f_type == DTYPE_USOCKET)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- rc = netcall(NET__sendmsg, fp, msg, flags);
- socket_cleanup_epipe(ostat);
- return rc;
- }
-
-
- int
- recvfrom (int s, void *buf, int len, int flags, struct sockaddr *from, int *fromlen)
- {
- struct file *fp = getsock (s);
- int ostat, rc;
-
- if (!fp || fp->f_type == DTYPE_USOCKET)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- rc = netcall(NET__recvfrom, fp, buf, len, flags, from, fromlen);
- socket_cleanup(ostat);
- return rc;
- }
-
-
- int
- recv (int s, void *buf, int len, int flags)
- {
- struct file *fp = getsock (s);
- int ostat, rc;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- rc = netcall(NET__recv, fp, buf, len, flags);
- socket_cleanup(ostat);
- return rc;
- }
-
-
- int
- recvmsg (int s, struct msghdr *msg, int flags)
- {
- struct file *fp = getsock (s);
- int ostat, rc;
-
- if (!fp || fp->f_type == DTYPE_USOCKET)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- rc = netcall(NET__recvmsg, fp, msg, flags);
- socket_cleanup(ostat);
- return rc;
- }
-
-
- int
- shutdown (int s, int how)
- {
- struct file *fp = getsock (s);
- int ostat, err;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- err = netcall(NET__shutdown, fp, how);
- socket_cleanup(ostat);
- return err;
- }
-
-
- int
- setsockopt (int s, int level, int name, const void *val, int valsize)
- {
- struct file *fp = getsock (s);
- int ostat, err;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- err = netcall(NET__setsockopt, fp, level, name, val, valsize);
- socket_cleanup(ostat);
- return err;
- }
-
-
- int
- getsockopt (int s, int level, int name, void *val, int *valsize)
- {
- struct file *fp = getsock (s);
- int ostat, err;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- err = netcall(NET__getsockopt, fp, level, name, val, valsize);
- socket_cleanup(ostat);
- return err;
- }
-
-
- /*
- * Get socket name.
- */
- int
- getsockname (int fdes, struct sockaddr *asa, int *alen)
- {
- struct file *fp = getsock (fdes);
- int ostat, err;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- err = netcall(NET__getsockname, fp, asa, alen);
- socket_cleanup(ostat);
- return err;
- }
-
- /*
- * Get name of peer for connected socket.
- */
- int
- getpeername (int fdes, struct sockaddr *asa, int *alen)
- {
- struct file *fp = getsock (fdes);
- int ostat, err;
-
- if (! fp)
- return -1;
-
- ostat = u.p_stat;
- u.p_stat = SWAIT;
-
- err = netcall(NET__getpeername, fp, asa, alen);
- socket_cleanup(ostat);
- return err;
- }
-
- static struct file *
- getsock (int fdes)
- {
- struct file *fp;
-
- if ((unsigned) fdes >= NOFILE)
- {
- errno = EBADF;
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return 0;
- }
-
- fp = u.u_ofile[fdes];
-
- if (fp == NULL)
- {
- errno = EBADF;
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return 0;
- }
-
- if (fp->f_type != DTYPE_SOCKET && fp->f_type != DTYPE_USOCKET)
- {
- errno = ENOTSOCK;
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return 0;
- }
-
- if (fp->f_type == DTYPE_SOCKET && !u.u_ixnetbase)
- {
- errno = EPIPE; /* ????? */
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return 0;
- }
-
- return (fp);
- }
-
- static int
- soo_read (struct file *fp, char *buf, int len)
- {
- return netcall(NET__tcp_read, fp, buf, len);
- }
-
- static int
- soo_write (struct file *fp, char *buf, int len)
- {
- return netcall(NET__tcp_write, fp, buf, len);
- }
-
- static int
- soo_ioctl (struct file *fp, int cmd, int inout, int arglen, caddr_t data)
- {
- return netcall(NET__tcp_ioctl, fp, cmd, inout, arglen, data);
- }
-
- /* ix_lock_base() is very fussy - so put most of the close() code here */
- static int
- soo_close (struct file *fp)
- {
- int err;
-
- ix_lock_base ();
- err = --fp->f_count;
- ix_unlock_base ();
-
- if (err)
- return 0;
-
- err = netcall(NET__tcp_close, fp);
-
- KPRINTF (("&errno = %lx, errno = %ld\n", &errno, errno));
- return err;
- }
-
- static int
- soo_select(struct file *fp, int select_cmd, int io_mode,
- fd_set *ignored, u_long *also_ignored)
- {
- return netcall(NET__tcp_select, fp, select_cmd, io_mode, ignored, also_ignored);
- }
-
- /* needed to set of the function pointers */
- void _set_socket_params(struct file *fp, int type)
- {
- fp->f_stb.st_mode = 0666 | S_IFSOCK; /* not always, but.. */
- fp->f_stb.st_size = 128; /* sizeof mbuf. */
- fp->f_stb.st_blksize = 128;
- fp->f_type = type;
- fp->f_flags = FREAD|FWRITE;
- fp->f_type = ( (type == AF_INET) ? DTYPE_SOCKET : DTYPE_USOCKET);
-
- if (fp->f_type == DTYPE_SOCKET)
- {
- fp->f_read = soo_read;
- fp->f_write = soo_write;
- fp->f_ioctl = soo_ioctl;
- fp->f_close = soo_close;
- fp->f_select = soo_select;
- }
- }
-