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authorfvdl <fvdl@NetBSD.org>1995-02-28 23:24:35 +0000
committerfvdl <fvdl@NetBSD.org>1995-02-28 23:24:35 +0000
commit3bf459f350dcbcf47afccba837f4466b132a98c8 (patch)
tree282143a8f0ed1d8860e89324a32312964e0bd6e8 /sys/compat/linux/multiarch/linux_socketcall.c
parent8bb0b6790c84a1e16ffa558fd110fb0d90cd0470 (diff)
Added Linux compat code.
Diffstat (limited to 'sys/compat/linux/multiarch/linux_socketcall.c')
-rw-r--r--sys/compat/linux/multiarch/linux_socketcall.c632
1 files changed, 632 insertions, 0 deletions
diff --git a/sys/compat/linux/multiarch/linux_socketcall.c b/sys/compat/linux/multiarch/linux_socketcall.c
new file mode 100644
index 00000000000..fd9aead2af4
--- /dev/null
+++ b/sys/compat/linux/multiarch/linux_socketcall.c
@@ -0,0 +1,632 @@
+/* $NetBSD: linux_socketcall.c,v 1.1 1995/02/28 23:25:17 fvdl Exp $ */
+
+/*
+ * Copyright (c) 1995 Frank van der Linden
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed for the NetBSD Project
+ * by Frank van der Linden
+ * 4. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/param.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+#include <sys/buf.h>
+#include <sys/malloc.h>
+#include <sys/ioctl.h>
+#include <sys/tty.h>
+#include <sys/file.h>
+#include <sys/filedesc.h>
+#include <sys/select.h>
+#include <sys/socket.h>
+#include <sys/socketvar.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <sys/mount.h>
+#include <sys/proc.h>
+#include <sys/vnode.h>
+#include <sys/device.h>
+
+#include <sys/syscallargs.h>
+
+#include <compat/linux/linux_types.h>
+#include <compat/linux/linux_util.h>
+#include <compat/linux/linux_syscallargs.h>
+#include <compat/linux/linux_ioctl.h>
+#include <compat/linux/linux_socket.h>
+#include <compat/linux/linux_socketcall.h>
+#include <compat/linux/linux_sockio.h>
+
+/*
+ * All the calls in this file are entered via one common system
+ * call in Linux, represented here by linux_socketcall()
+ * Arguments for the various calls are on the user stack. A pointer
+ * to them is the only thing that is passed. It is up to the various
+ * calls to copy them in themselves. To make it look better, they
+ * are copied to structures.
+ */
+
+/*
+ * Convert between Linux and BSD socket domain values
+ */
+static int
+linux_to_bsd_domain(ldom)
+ int ldom;
+{
+ switch (ldom) {
+ case LINUX_AF_UNSPEC:
+ return AF_UNSPEC;
+ case LINUX_AF_UNIX:
+ return AF_LOCAL;
+ case LINUX_AF_INET:
+ return AF_INET;
+ case LINUX_AF_AX25:
+ return AF_CCITT;
+ case LINUX_AF_IPX:
+ return AF_IPX;
+ case LINUX_AF_APPLETALK:
+ return AF_APPLETALK;
+ default:
+ return -1;
+ }
+}
+
+static int
+linux_socket(p, args, retval)
+ struct proc *p;
+ struct linux_socket_args /* {
+ syscallarg(int) domain;
+ syscallarg(int) type;
+ syscallarg(int) protocol;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_socket_args lsa;
+ struct socket_args bsa;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lsa, sizeof lsa)))
+ return error;
+
+ SCARG(&bsa, protocol) = lsa.protocol;
+ SCARG(&bsa, type) = lsa.type;
+ SCARG(&bsa, domain) = linux_to_bsd_domain(lsa.domain);
+ if (SCARG(&bsa, domain) == -1)
+ return EINVAL;
+ return socket(p, &bsa, retval);
+}
+
+static int
+linux_bind(p, args, retval)
+ struct proc *p;
+ struct linux_bind_args /* {
+ syscallarg(int) s;
+ syscallarg(struct sockaddr *) name;
+ syscallarg(int) namelen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_bind_args lba;
+ struct bind_args bba;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lba, sizeof lba)))
+ return error;
+
+ SCARG(&bba, s) = lba.s;
+ SCARG(&bba, name) = (caddr_t) lba.name;
+ SCARG(&bba, namelen) = lba.namelen;
+
+ return bind(p, &bba, retval);
+}
+
+static int
+linux_connect(p, args, retval)
+ struct proc *p;
+ struct linux_connect_args /* {
+ syscallarg(int) s;
+ syscallarg(struct sockaddr *) name;
+ syscallarg(int) namelen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_connect_args lca;
+ struct connect_args bca;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lca, sizeof lca)))
+ return error;
+
+ SCARG(&bca, s) = lca.s;
+ SCARG(&bca, name) = (caddr_t) lca.name;
+ SCARG(&bca, namelen) = lca.namelen;
+
+ return connect(p, &bca, retval);
+}
+
+static int
+linux_listen(p, args, retval)
+ struct proc *p;
+ struct linux_listen_args /* {
+ syscallarg(int) s;
+ syscallarg(int) backlog;
+ } */ *args;
+ register *retval;
+{
+ struct linux_listen_args lla;
+ struct listen_args bla;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lla, sizeof lla)))
+ return error;
+
+ SCARG(&bla, s) = lla.s;
+ SCARG(&bla, backlog) = lla.backlog;
+
+ return listen(p, &bla, retval);
+}
+
+static int
+linux_accept(p, args, retval)
+ struct proc *p;
+ struct linux_accept_args /* {
+ syscallarg(int) s;
+ syscallarg(struct sockaddr *) addr;
+ syscallarg(int *) namelen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_accept_args laa;
+ struct compat_43_accept_args baa;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &laa, sizeof laa)))
+ return error;
+
+ SCARG(&baa, s) = laa.s;
+ SCARG(&baa, name) = (caddr_t) laa.addr;
+ SCARG(&baa, anamelen) = laa.namelen;
+
+ return compat_43_accept(p, &baa, retval);
+}
+
+static int
+linux_getsockname(p, args, retval)
+ struct proc *p;
+ struct linux_getsockname_args /* {
+ syscallarg(int) s;
+ syscallarg(struct sockaddr *) addr;
+ syscallarg(int *) namelen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_getsockname_args lga;
+ struct compat_43_getsockname_args bga;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lga, sizeof lga)))
+ return error;
+
+ SCARG(&bga, fdec) = lga.s;
+ SCARG(&bga, asa) = (caddr_t) lga.addr;
+ SCARG(&bga, alen) = lga.namelen;
+
+ return compat_43_getsockname(p, &bga, retval);
+}
+
+static int
+linux_getpeername(p, args, retval)
+ struct proc *p;
+ struct linux_getpeername_args /* {
+ syscallarg(int) s;
+ syscallarg(struct sockaddr *) addr;
+ syscallarg(int *) namelen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_getpeername_args lga;
+ struct compat_43_getpeername_args bga;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lga, sizeof lga)))
+ return error;
+
+ SCARG(&bga, fdes) = lga.s;
+ SCARG(&bga, asa) = (caddr_t) lga.addr;
+ SCARG(&bga, alen) = lga.namelen;
+
+ return compat_43_getpeername(p, &bga, retval);
+}
+
+static int
+linux_socketpair(p, args, retval)
+ struct proc *p;
+ struct linux_socketpair_args /* {
+ syscallarg(int) domain;
+ syscallarg(int) type;
+ syscallarg(int) protocol;
+ syscallarg(int *) rsv;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_socketpair_args lsa;
+ struct socketpair_args bsa;
+ int error;
+
+ if ((error = copyin((caddr_t) args, &lsa, sizeof lsa)))
+ return error;
+
+ SCARG(&bsa, domain) = linux_to_bsd_domain(lsa.domain);
+ if (SCARG(&bsa, domain) == -1)
+ return EINVAL;
+ SCARG(&bsa, type) = lsa.type;
+ SCARG(&bsa, protocol) = lsa.protocol;
+ SCARG(&bsa, rsv) = lsa.rsv;
+
+ return socketpair(p, &bsa, retval);
+}
+
+static int
+linux_send(p, args, retval)
+ struct proc *p;
+ struct linux_send_args /* {
+ syscallarg(int) s;
+ syscallarg(void *) msg;
+ syscallarg(int) len;
+ syscallarg(int) flags;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_send_args lsa;
+ struct compat_43_send_args bsa;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lsa, sizeof lsa)))
+ return error;
+
+ SCARG(&bsa, s) = lsa.s;
+ SCARG(&bsa, buf) = lsa.msg;
+ SCARG(&bsa, len) = lsa.len;
+ SCARG(&bsa, flags) = lsa.flags;
+
+ return compat_43_send(p, &bsa, retval);
+}
+
+static int
+linux_recv(p, args, retval)
+ struct proc *p;
+ struct linux_recv_args *args;
+ register_t *retval;
+{
+ struct linux_recv_args lra;
+ struct compat_43_recv_args bra;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lra, sizeof lra)))
+ return error;
+
+ SCARG(&bra, s) = lra.s;
+ SCARG(&bra, buf) = lra.msg;
+ SCARG(&bra, len) = lra.len;
+ SCARG(&bra, flags) = lra.flags;
+
+ return compat_43_recv(p, &bra, retval);
+}
+
+static int
+linux_sendto(p, args, retval)
+ struct proc *p;
+ struct linux_sendto_args /* {
+ syscallarg(int) s;
+ syscallarg(void *) msg;
+ syscallarg(int) len;
+ syscallarg(int) flags;
+ syscallarg(sockaddr *) to;
+ syscallarg(int) tolen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_sendto_args lsa;
+ struct sendto_args bsa;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lsa, sizeof lsa)))
+ return error;
+
+ SCARG(&bsa, s) = lsa.s;
+ SCARG(&bsa, buf) = lsa.msg;
+ SCARG(&bsa, len) = lsa.len;
+ SCARG(&bsa, flags) = lsa.flags;
+ SCARG(&bsa, to) = (caddr_t) lsa.to;
+ SCARG(&bsa, tolen) = lsa.tolen;
+
+ return sendto(p, &bsa, retval);
+}
+
+static int
+linux_recvfrom(p, args, retval)
+ struct proc *p;
+ struct linux_recvfrom_args /* {
+ syscallarg(int) s;
+ syscallarg(void *) buf;
+ syscallarg(int) len;
+ syscallarg(int) flags;
+ syscallarg(struct sockaddr *) from;
+ syscallarg(int *) fromlen;
+ } */ *args;
+{
+ struct linux_recvfrom_args lra;
+ struct compat_43_recvfrom_args bra;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lra, sizeof lra)))
+ return error;
+
+ SCARG(&bra, s) = lra.s;
+ SCARG(&bra, buf) = lra.buf;
+ SCARG(&bra, len) = lra.len;
+ SCARG(&bra, flags) = lra.flags;
+ SCARG(&bra, from) = (caddr_t) lra.from;
+ SCARG(&bra, fromlenaddr) = lra.fromlen;
+
+ return compat_43_recvfrom(p, &bra, retval);
+}
+
+static int
+linux_shutdown(p, args, retval)
+ struct proc *p;
+ struct linux_shutdown_args /* {
+ syscallarg(int) s;
+ syscallarg(int) how;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_shutdown_args lsa;
+ struct shutdown_args bsa;
+ int error;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lsa, sizeof lsa)))
+ return error;
+
+ SCARG(&bsa, s) = lsa.s;
+ SCARG(&bsa, how) = lsa.how;
+
+ return shutdown(p, &bsa, retval);
+}
+
+/*
+ * Convert socket option level from Linux to NetBSD value. Only SOL_SOCKET
+ * is different, the rest matches IPPROTO_* on both systems.
+ */
+static int
+linux_to_bsd_sopt_level(llevel)
+ int llevel;
+{
+ switch (llevel) {
+ case LINUX_SOL_SOCKET:
+ return SOL_SOCKET;
+ default:
+ return llevel;
+ }
+}
+
+/*
+ * Convert Linux IP level socket option number to NetBSD values.
+ * Linux only implements IP_TOS and IP_TTL
+ */
+static int linux_to_bsd_ip_sockopt(lopt)
+ int lopt;
+{
+ switch (lopt) {
+ case LINUX_IP_TOS:
+ return IP_TOS;
+ case LINUX_IP_TTL:
+ return IP_TTL;
+ default:
+ return -1;
+ }
+}
+
+/*
+ * Convert Linux socket level socket option numbers to NetBSD values.
+ */
+static int
+linux_to_bsd_so_sockopt(lopt)
+ int lopt;
+{
+ switch (lopt) {
+ case LINUX_SO_DEBUG:
+ return SO_DEBUG;
+ case LINUX_SO_REUSEADDR:
+ return SO_REUSEADDR;
+ case LINUX_SO_TYPE:
+ return SO_TYPE;
+ case LINUX_SO_ERROR:
+ return SO_ERROR;
+ case LINUX_SO_DONTROUTE:
+ return SO_DONTROUTE;
+ case LINUX_SO_BROADCAST:
+ return SO_BROADCAST;
+ case LINUX_SO_SNDBUF:
+ return SO_SNDBUF;
+ case LINUX_SO_RCVBUF:
+ return SO_RCVBUF;
+ case LINUX_SO_KEEPALIVE:
+ return SO_KEEPALIVE;
+ case LINUX_SO_OOBINLINE:
+ return SO_OOBINLINE;
+ case LINUX_SO_LINGER:
+ return SO_LINGER;
+ case LINUX_SO_PRIORITY:
+ case LINUX_SO_NO_CHECK:
+ default:
+ return -1;
+ }
+}
+
+/*
+ * Another reasonably straightforward function: setsockopt(2). Only
+ * the SOL_SOCKET and IPPROTO_IP levels are implemented here.
+ * The level and option numbers are converted; the values passed
+ * are not (yet) converted, the ones currently implemented don't
+ * need conversion, as they are the same on both systems.
+ */
+static int
+linux_setsockopt(p, args, retval)
+ struct proc *p;
+ struct linux_setsockopt_args /* {
+ syscallarg(int) s;
+ syscallarg(int) level;
+ syscallarg(int) optname;
+ syscallarg(void *) optval;
+ syscallarg(int) optlen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_setsockopt_args lsa;
+ struct setsockopt_args bsa;
+ int error, name;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lsa, sizeof lsa)))
+ return error;
+
+ SCARG(&bsa, s) = lsa.s;
+
+ SCARG(&bsa, level) = linux_to_bsd_sopt_level(lsa.level);
+
+ switch (SCARG(&bsa, level)) {
+ case SOL_SOCKET:
+ name = linux_to_bsd_so_sockopt(lsa.optname);
+ break;
+ case IPPROTO_IP:
+ name = linux_to_bsd_ip_sockopt(lsa.optname);
+ break;
+ default:
+ return EINVAL;
+ }
+
+ if (name == -1)
+ return EINVAL;
+ SCARG(&bsa, name) = name;
+ SCARG(&bsa, val) = lsa.optval;
+ SCARG(&bsa, valsize) = lsa.optlen;
+
+ return setsockopt(p, &bsa, retval);
+}
+
+/*
+ * getsockopt(2) is very much the same as setsockopt(2) (see above)
+ */
+static int
+linux_getsockopt(p, args, retval)
+ struct proc *p;
+ struct linux_getsockopt_args /* {
+ syscallarg(int) s;
+ syscallarg(int) level;
+ syscallarg(int) optname;
+ syscallarg(void *) optval;
+ syscallarg(int) *optlen;
+ } */ *args;
+ register_t *retval;
+{
+ struct linux_getsockopt_args lga;
+ struct getsockopt_args bga;
+ int error, name;
+
+ if ((error = copyin((caddr_t) args, (caddr_t) &lga, sizeof lga)))
+ return error;
+
+ SCARG(&bga, s) = lga.s;
+
+ SCARG(&bga, level) = linux_to_bsd_sopt_level(lga.level);
+
+ switch (SCARG(&bga, level)) {
+ case SOL_SOCKET:
+ name = linux_to_bsd_so_sockopt(lga.optname);
+ break;
+ case IPPROTO_IP:
+ name = linux_to_bsd_ip_sockopt(lga.optname);
+ break;
+ default:
+ return EINVAL;
+ }
+
+ if (name == -1)
+ return EINVAL;
+ SCARG(&bga, val) = lga.optval;
+ SCARG(&bga, avalsize) = lga.optlen;
+
+ return getsockopt(p, &bga, retval);
+}
+
+/*
+ * Entry point to all Linux socket calls. Just check which call to
+ * make and take appropriate action.
+ */
+int
+linux_socketcall(p, uap, retval)
+ struct proc *p;
+ struct linux_socketcall_args /* {
+ syscallarg(int) what;
+ syscallarg(void *) args;
+ } */ *uap;
+ register_t *retval;
+{
+ switch (SCARG(uap, what)) {
+ case LINUX_SYS_socket:
+ return linux_socket(p, SCARG(uap, args), retval);
+ case LINUX_SYS_bind:
+ return linux_bind(p, SCARG(uap, args), retval);
+ case LINUX_SYS_connect:
+ return linux_connect(p, SCARG(uap, args), retval);
+ case LINUX_SYS_listen:
+ return linux_listen(p, SCARG(uap, args), retval);
+ case LINUX_SYS_accept:
+ return linux_accept(p, SCARG(uap, args), retval);
+ case LINUX_SYS_getsockname:
+ return linux_getsockname(p, SCARG(uap, args), retval);
+ case LINUX_SYS_getpeername:
+ return linux_getpeername(p, SCARG(uap, args), retval);
+ case LINUX_SYS_socketpair:
+ return linux_socketpair(p, SCARG(uap, args), retval);
+ case LINUX_SYS_send:
+ return linux_send(p, SCARG(uap, args), retval);
+ case LINUX_SYS_recv:
+ return linux_recv(p, SCARG(uap, args), retval);
+ case LINUX_SYS_sendto:
+ return linux_sendto(p, SCARG(uap, args), retval);
+ case LINUX_SYS_recvfrom:
+ return linux_recvfrom(p, SCARG(uap, args), retval);
+ case LINUX_SYS_shutdown:
+ return linux_shutdown(p, SCARG(uap, args), retval);
+ case LINUX_SYS_setsockopt:
+ return linux_setsockopt(p, SCARG(uap, args), retval);
+ case LINUX_SYS_getsockopt:
+ return linux_getsockopt(p, SCARG(uap, args), retval);
+ default:
+ return ENOSYS;
+ }
+}