[PATCH 1/3] um: Remove obsolete legacy network transports
Tiwei Bie
tiwei.btw at antgroup.com
Fri May 2 22:17:08 PDT 2025
These legacy network transports were marked as obsolete in commit
40814b98a570 ("um: Mark non-vector net transports as obsolete").
More than five years have passed since then. Remove these network
transports to reduce the maintenance burden.
Suggested-by: Anton Ivanov <anton.ivanov at cambridgegreys.com>
Signed-off-by: Tiwei Bie <tiwei.btw at antgroup.com>
---
.../virt/uml/user_mode_linux_howto_v2.rst | 31 +--
arch/um/configs/i386_defconfig | 6 -
arch/um/configs/x86_64_defconfig | 6 -
arch/um/drivers/Kconfig | 170 ------------
arch/um/drivers/Makefile | 18 +-
arch/um/drivers/daemon.h | 29 --
arch/um/drivers/daemon_kern.c | 95 -------
arch/um/drivers/daemon_user.c | 194 --------------
arch/um/drivers/slip.h | 21 --
arch/um/drivers/slip_common.c | 55 ----
arch/um/drivers/slip_common.h | 106 --------
arch/um/drivers/slip_kern.c | 93 -------
arch/um/drivers/slip_user.c | 252 ------------------
arch/um/drivers/slirp.h | 34 ---
arch/um/drivers/slirp_kern.c | 120 ---------
arch/um/drivers/slirp_user.c | 124 ---------
arch/um/drivers/umcast.h | 27 --
arch/um/drivers/umcast_kern.c | 188 -------------
arch/um/drivers/umcast_user.c | 184 -------------
arch/um/drivers/vde.h | 32 ---
arch/um/drivers/vde_kern.c | 129 ---------
arch/um/drivers/vde_user.c | 125 ---------
arch/um/include/shared/os.h | 1 -
arch/um/os-Linux/Makefile | 2 +-
arch/um/os-Linux/drivers/Makefile | 13 -
arch/um/os-Linux/drivers/etap.h | 21 --
arch/um/os-Linux/drivers/ethertap_kern.c | 100 -------
arch/um/os-Linux/drivers/ethertap_user.c | 248 -----------------
arch/um/os-Linux/drivers/tuntap.h | 21 --
arch/um/os-Linux/drivers/tuntap_kern.c | 86 ------
arch/um/os-Linux/drivers/tuntap_user.c | 215 ---------------
arch/um/os-Linux/file.c | 15 --
32 files changed, 4 insertions(+), 2757 deletions(-)
delete mode 100644 arch/um/drivers/daemon.h
delete mode 100644 arch/um/drivers/daemon_kern.c
delete mode 100644 arch/um/drivers/daemon_user.c
delete mode 100644 arch/um/drivers/slip.h
delete mode 100644 arch/um/drivers/slip_common.c
delete mode 100644 arch/um/drivers/slip_common.h
delete mode 100644 arch/um/drivers/slip_kern.c
delete mode 100644 arch/um/drivers/slip_user.c
delete mode 100644 arch/um/drivers/slirp.h
delete mode 100644 arch/um/drivers/slirp_kern.c
delete mode 100644 arch/um/drivers/slirp_user.c
delete mode 100644 arch/um/drivers/umcast.h
delete mode 100644 arch/um/drivers/umcast_kern.c
delete mode 100644 arch/um/drivers/umcast_user.c
delete mode 100644 arch/um/drivers/vde.h
delete mode 100644 arch/um/drivers/vde_kern.c
delete mode 100644 arch/um/drivers/vde_user.c
delete mode 100644 arch/um/os-Linux/drivers/Makefile
delete mode 100644 arch/um/os-Linux/drivers/etap.h
delete mode 100644 arch/um/os-Linux/drivers/ethertap_kern.c
delete mode 100644 arch/um/os-Linux/drivers/ethertap_user.c
delete mode 100644 arch/um/os-Linux/drivers/tuntap.h
delete mode 100644 arch/um/os-Linux/drivers/tuntap_kern.c
delete mode 100644 arch/um/os-Linux/drivers/tuntap_user.c
diff --git a/Documentation/virt/uml/user_mode_linux_howto_v2.rst b/Documentation/virt/uml/user_mode_linux_howto_v2.rst
index 584000b743f3..60f35ed748b2 100644
--- a/Documentation/virt/uml/user_mode_linux_howto_v2.rst
+++ b/Documentation/virt/uml/user_mode_linux_howto_v2.rst
@@ -219,16 +219,6 @@ remote UML and other VM instances.
+-----------+--------+------------------------------------+------------+
| vde | vector | dep. on VDE VPN: Virt.Net Locator | varies |
+-----------+--------+------------------------------------+------------+
-| tuntap | legacy | none | ~ 500Mbit |
-+-----------+--------+------------------------------------+------------+
-| daemon | legacy | none | ~ 450Mbit |
-+-----------+--------+------------------------------------+------------+
-| socket | legacy | none | ~ 450Mbit |
-+-----------+--------+------------------------------------+------------+
-| ethertap | legacy | obsolete | ~ 500Mbit |
-+-----------+--------+------------------------------------+------------+
-| vde | legacy | obsolete | ~ 500Mbit |
-+-----------+--------+------------------------------------+------------+
* All transports which have tso and checksum offloads can deliver speeds
approaching 10G on TCP streams.
@@ -236,27 +226,16 @@ remote UML and other VM instances.
* All transports which have multi-packet rx and/or tx can deliver pps
rates of up to 1Mps or more.
-* All legacy transports are generally limited to ~600-700MBit and 0.05Mps.
-
* GRE and L2TPv3 allow connections to all of: local machine, remote
machines, remote network devices and remote UML instances.
-* Socket allows connections only between UML instances.
-
-* Daemon and bess require running a local switch. This switch may be
- connected to the host as well.
-
Network configuration privileges
================================
The majority of the supported networking modes need ``root`` privileges.
-For example, in the legacy tuntap networking mode, users were required
-to be part of the group associated with the tunnel device.
-
-For newer network drivers like the vector transports, ``root`` privilege
-is required to fire an ioctl to setup the tun interface and/or use
-raw sockets where needed.
+For example, for vector transports, ``root`` privilege is required to fire
+an ioctl to setup the tun interface and/or use raw sockets where needed.
This can be achieved by granting the user a particular capability instead
of running UML as root. In case of vector transport, a user can add the
@@ -610,12 +589,6 @@ connect to a local area cloud (all the UML nodes using the same
multicast address running on hosts in the same multicast domain (LAN)
will be automagically connected together to a virtual LAN.
-Configuring Legacy transports
-=============================
-
-Legacy transports are now considered obsolete. Please use the vector
-versions.
-
***********
Running UML
***********
diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig
index 1ffa088739f4..7c8999f18f2d 100644
--- a/arch/um/configs/i386_defconfig
+++ b/arch/um/configs/i386_defconfig
@@ -53,12 +53,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_UML_NET=y
-CONFIG_UML_NET_ETHERTAP=y
-CONFIG_UML_NET_TUNTAP=y
-CONFIG_UML_NET_SLIP=y
-CONFIG_UML_NET_DAEMON=y
-CONFIG_UML_NET_MCAST=y
-CONFIG_UML_NET_SLIRP=y
CONFIG_EXT4_FS=y
CONFIG_QUOTA=y
CONFIG_AUTOFS_FS=m
diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig
index 03b10d3f6816..9858d989777e 100644
--- a/arch/um/configs/x86_64_defconfig
+++ b/arch/um/configs/x86_64_defconfig
@@ -52,12 +52,6 @@ CONFIG_UNIX=y
CONFIG_INET=y
# CONFIG_IPV6 is not set
CONFIG_UML_NET=y
-CONFIG_UML_NET_ETHERTAP=y
-CONFIG_UML_NET_TUNTAP=y
-CONFIG_UML_NET_SLIP=y
-CONFIG_UML_NET_DAEMON=y
-CONFIG_UML_NET_MCAST=y
-CONFIG_UML_NET_SLIRP=y
CONFIG_EXT4_FS=y
CONFIG_QUOTA=y
CONFIG_AUTOFS_FS=m
diff --git a/arch/um/drivers/Kconfig b/arch/um/drivers/Kconfig
index 9cb196070614..5bf4f0f3fd01 100644
--- a/arch/um/drivers/Kconfig
+++ b/arch/um/drivers/Kconfig
@@ -143,99 +143,6 @@ config UML_NET
enable at least one of the following transport options to actually
make use of UML networking.
-config UML_NET_ETHERTAP
- bool "Ethertap transport (obsolete)"
- depends on UML_NET
- help
- The Ethertap User-Mode Linux network transport allows a single
- running UML to exchange packets with its host over one of the
- host's Ethertap devices, such as /dev/tap0. Additional running
- UMLs can use additional Ethertap devices, one per running UML.
- While the UML believes it's on a (multi-device, broadcast) virtual
- Ethernet network, it's in fact communicating over a point-to-point
- link with the host.
-
- To use this, your host kernel must have support for Ethertap
- devices. Also, if your host kernel is 2.4.x, it must have
- CONFIG_NETLINK_DEV configured as Y or M.
-
- For more information, see
- <http://user-mode-linux.sourceforge.net/old/networking.html> That site
- has examples of the UML command line to use to enable Ethertap
- networking.
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
-config UML_NET_TUNTAP
- bool "TUN/TAP transport (obsolete)"
- depends on UML_NET
- help
- The UML TUN/TAP network transport allows a UML instance to exchange
- packets with the host over a TUN/TAP device. This option will only
- work with a 2.4 host, unless you've applied the TUN/TAP patch to
- your 2.2 host kernel.
-
- To use this transport, your host kernel must have support for TUN/TAP
- devices, either built-in or as a module.
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
-config UML_NET_SLIP
- bool "SLIP transport (obsolete)"
- depends on UML_NET
- help
- The slip User-Mode Linux network transport allows a running UML to
- network with its host over a point-to-point link. Unlike Ethertap,
- which can carry any Ethernet frame (and hence even non-IP packets),
- the slip transport can only carry IP packets.
-
- To use this, your host must support slip devices.
-
- For more information, see
- <http://user-mode-linux.sourceforge.net/old/networking.html>.
- has examples of the UML command line to use to enable slip
- networking, and details of a few quirks with it.
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
-config UML_NET_DAEMON
- bool "Daemon transport (obsolete)"
- depends on UML_NET
- help
- This User-Mode Linux network transport allows one or more running
- UMLs on a single host to communicate with each other, but not to
- the host.
-
- To use this form of networking, you'll need to run the UML
- networking daemon on the host.
-
- For more information, see
- <http://user-mode-linux.sourceforge.net/old/networking.html> That site
- has examples of the UML command line to use to enable Daemon
- networking.
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
-config UML_NET_DAEMON_DEFAULT_SOCK
- string "Default socket for daemon transport"
- default "/tmp/uml.ctl"
- depends on UML_NET_DAEMON
- help
- This option allows setting the default socket for the daemon
- transport, normally it defaults to /tmp/uml.ctl.
-
config UML_NET_VECTOR
bool "Vector I/O high performance network devices"
depends on UML_NET
@@ -248,83 +155,6 @@ config UML_NET_VECTOR
with up to 4 times higher network throughput than the UML network
drivers.
-config UML_NET_VDE
- bool "VDE transport (obsolete)"
- depends on UML_NET
- depends on !MODVERSIONS
- select MAY_HAVE_RUNTIME_DEPS
- help
- This User-Mode Linux network transport allows one or more running
- UMLs on a single host to communicate with each other and also
- with the rest of the world using Virtual Distributed Ethernet,
- an improved fork of uml_switch.
-
- You must have libvdeplug installed in order to build the vde
- transport into UML.
-
- To use this form of networking, you will need to run vde_switch
- on the host.
-
- For more information, see <http://wiki.virtualsquare.org/>
- That site has a good overview of what VDE is and also examples
- of the UML command line to use to enable VDE networking.
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
-config UML_NET_MCAST
- bool "Multicast transport (obsolete)"
- depends on UML_NET
- help
- This Multicast User-Mode Linux network transport allows multiple
- UMLs (even ones running on different host machines!) to talk to
- each other over a virtual ethernet network. However, it requires
- at least one UML with one of the other transports to act as a
- bridge if any of them need to be able to talk to their hosts or any
- other IP machines.
-
- To use this, your host kernel(s) must support IP Multicasting.
-
- For more information, see
- <http://user-mode-linux.sourceforge.net/old/networking.html> That site
- has examples of the UML command line to use to enable Multicast
- networking, and notes about the security of this approach.
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
-config UML_NET_SLIRP
- bool "SLiRP transport (obsolete)"
- depends on UML_NET
- help
- The SLiRP User-Mode Linux network transport allows a running UML
- to network by invoking a program that can handle SLIP encapsulated
- packets. This is commonly (but not limited to) the application
- known as SLiRP, a program that can re-socket IP packets back onto
- he host on which it is run. Only IP packets are supported,
- unlike other network transports that can handle all Ethernet
- frames. In general, slirp allows the UML the same IP connectivity
- to the outside world that the host user is permitted, and unlike
- other transports, SLiRP works without the need of root level
- privileges, setuid binaries, or SLIP devices on the host. This
- also means not every type of connection is possible, but most
- situations can be accommodated with carefully crafted slirp
- commands that can be passed along as part of the network device's
- setup string. The effect of this transport on the UML is similar
- that of a host behind a firewall that masquerades all network
- connections passing through it (but is less secure).
-
- NOTE: THIS TRANSPORT IS DEPRECATED AND WILL BE REMOVED SOON!!! Please
- migrate to UML_NET_VECTOR.
-
- If unsure, say N.
-
- Startup example: "eth0=slirp,FE:FD:01:02:03:04,/usr/local/bin/slirp"
-
endmenu
config VIRTIO_UML
diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile
index 0a5820343ad3..d0608850833c 100644
--- a/arch/um/drivers/Makefile
+++ b/arch/um/drivers/Makefile
@@ -6,11 +6,7 @@
# pcap is broken in 2.5 because kbuild doesn't allow pcap.a to be linked
# in to pcap.o
-slip-objs := slip_kern.o slip_user.o
-slirp-objs := slirp_kern.o slirp_user.o
-daemon-objs := daemon_kern.o daemon_user.o
vector-objs := vector_kern.o vector_user.o vector_transports.o
-umcast-objs := umcast_kern.o umcast_user.o
net-objs := net_kern.o net_user.o
mconsole-objs := mconsole_kern.o mconsole_user.o
hostaudio-objs := hostaudio_kern.o
@@ -20,13 +16,6 @@ harddog-objs := harddog_kern.o
harddog-builtin-$(CONFIG_UML_WATCHDOG) := harddog_user.o harddog_user_exp.o
rtc-objs := rtc_kern.o rtc_user.o
-LDFLAGS_vde.o = $(shell $(CC) $(CFLAGS) -print-file-name=libvdeplug.a)
-
-targets := vde_kern.o vde_user.o
-
-$(obj)/vde.o: $(obj)/vde_kern.o $(obj)/vde_user.o
- $(LD) -r -dp -o $@ $^ $(ld_flags)
-
#XXX: The call below does not work because the flags are added before the
# object name, so nothing from the library gets linked.
#$(call if_changed,ld)
@@ -38,12 +27,7 @@ obj-y := stdio_console.o fd.o chan_kern.o chan_user.o line.o
obj-$(CONFIG_SSL) += ssl.o
obj-$(CONFIG_STDERR_CONSOLE) += stderr_console.o
-obj-$(CONFIG_UML_NET_SLIP) += slip.o slip_common.o
-obj-$(CONFIG_UML_NET_SLIRP) += slirp.o slip_common.o
-obj-$(CONFIG_UML_NET_DAEMON) += daemon.o
obj-$(CONFIG_UML_NET_VECTOR) += vector.o
-obj-$(CONFIG_UML_NET_VDE) += vde.o
-obj-$(CONFIG_UML_NET_MCAST) += umcast.o
obj-$(CONFIG_UML_NET) += net.o
obj-$(CONFIG_MCONSOLE) += mconsole.o
obj-$(CONFIG_MMAPPER) += mmapper_kern.o
@@ -64,7 +48,7 @@ obj-$(CONFIG_UML_PCI) += virt-pci.o
obj-$(CONFIG_UML_PCI_OVER_VIRTIO) += virtio_pcidev.o
# pcap_user.o must be added explicitly.
-USER_OBJS := fd.o null.o pty.o tty.o xterm.o slip_common.o vde_user.o vector_user.o
+USER_OBJS := fd.o null.o pty.o tty.o xterm.o vector_user.o
CFLAGS_null.o = -DDEV_NULL=$(DEV_NULL_PATH)
CFLAGS_xterm.o += '-DCONFIG_XTERM_CHAN_DEFAULT_EMULATOR="$(CONFIG_XTERM_CHAN_DEFAULT_EMULATOR)"'
diff --git a/arch/um/drivers/daemon.h b/arch/um/drivers/daemon.h
deleted file mode 100644
index 1509cc7eb907..000000000000
--- a/arch/um/drivers/daemon.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#ifndef __DAEMON_H__
-#define __DAEMON_H__
-
-#include <net_user.h>
-
-#define SWITCH_VERSION 3
-
-struct daemon_data {
- char *sock_type;
- char *ctl_sock;
- void *ctl_addr;
- void *data_addr;
- void *local_addr;
- int fd;
- int control;
- void *dev;
-};
-
-extern const struct net_user_info daemon_user_info;
-
-extern int daemon_user_write(int fd, void *buf, int len,
- struct daemon_data *pri);
-
-#endif
diff --git a/arch/um/drivers/daemon_kern.c b/arch/um/drivers/daemon_kern.c
deleted file mode 100644
index afde1e82c056..000000000000
--- a/arch/um/drivers/daemon_kern.c
+++ /dev/null
@@ -1,95 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 Lennert Buytenhek (buytenh at gnu.org) and
- * James Leu (jleu at mindspring.net).
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Copyright (C) 2001 by various other people who didn't put their name here.
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <net_kern.h>
-#include "daemon.h"
-
-struct daemon_init {
- char *sock_type;
- char *ctl_sock;
-};
-
-static void daemon_init(struct net_device *dev, void *data)
-{
- struct uml_net_private *pri;
- struct daemon_data *dpri;
- struct daemon_init *init = data;
-
- pri = netdev_priv(dev);
- dpri = (struct daemon_data *) pri->user;
- dpri->sock_type = init->sock_type;
- dpri->ctl_sock = init->ctl_sock;
- dpri->fd = -1;
- dpri->control = -1;
- dpri->dev = dev;
- /* We will free this pointer. If it contains crap we're burned. */
- dpri->ctl_addr = NULL;
- dpri->data_addr = NULL;
- dpri->local_addr = NULL;
-
- printk("daemon backend (uml_switch version %d) - %s:%s",
- SWITCH_VERSION, dpri->sock_type, dpri->ctl_sock);
- printk("\n");
-}
-
-static int daemon_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return net_recvfrom(fd, skb_mac_header(skb),
- skb->dev->mtu + ETH_HEADER_OTHER);
-}
-
-static int daemon_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return daemon_user_write(fd, skb->data, skb->len,
- (struct daemon_data *) &lp->user);
-}
-
-static const struct net_kern_info daemon_kern_info = {
- .init = daemon_init,
- .protocol = eth_protocol,
- .read = daemon_read,
- .write = daemon_write,
-};
-
-static int daemon_setup(char *str, char **mac_out, void *data)
-{
- struct daemon_init *init = data;
- char *remain;
-
- *init = ((struct daemon_init)
- { .sock_type = "unix",
- .ctl_sock = CONFIG_UML_NET_DAEMON_DEFAULT_SOCK });
-
- remain = split_if_spec(str, mac_out, &init->sock_type, &init->ctl_sock,
- NULL);
- if (remain != NULL)
- printk(KERN_WARNING "daemon_setup : Ignoring data socket "
- "specification\n");
-
- return 1;
-}
-
-static struct transport daemon_transport = {
- .list = LIST_HEAD_INIT(daemon_transport.list),
- .name = "daemon",
- .setup = daemon_setup,
- .user = &daemon_user_info,
- .kern = &daemon_kern_info,
- .private_size = sizeof(struct daemon_data),
- .setup_size = sizeof(struct daemon_init),
-};
-
-static int register_daemon(void)
-{
- register_transport(&daemon_transport);
- return 0;
-}
-
-late_initcall(register_daemon);
diff --git a/arch/um/drivers/daemon_user.c b/arch/um/drivers/daemon_user.c
deleted file mode 100644
index 785baedc3555..000000000000
--- a/arch/um/drivers/daemon_user.c
+++ /dev/null
@@ -1,194 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Copyright (C) 2001 Lennert Buytenhek (buytenh at gnu.org) and
- * James Leu (jleu at mindspring.net).
- * Copyright (C) 2001 by various other people who didn't put their name here.
- */
-
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <sys/time.h>
-#include <sys/un.h>
-#include "daemon.h"
-#include <net_user.h>
-#include <os.h>
-#include <um_malloc.h>
-
-enum request_type { REQ_NEW_CONTROL };
-
-#define SWITCH_MAGIC 0xfeedface
-
-struct request_v3 {
- uint32_t magic;
- uint32_t version;
- enum request_type type;
- struct sockaddr_un sock;
-};
-
-static struct sockaddr_un *new_addr(void *name, int len)
-{
- struct sockaddr_un *sun;
-
- sun = uml_kmalloc(sizeof(struct sockaddr_un), UM_GFP_KERNEL);
- if (sun == NULL) {
- printk(UM_KERN_ERR "new_addr: allocation of sockaddr_un "
- "failed\n");
- return NULL;
- }
- sun->sun_family = AF_UNIX;
- memcpy(sun->sun_path, name, len);
- return sun;
-}
-
-static int connect_to_switch(struct daemon_data *pri)
-{
- struct sockaddr_un *ctl_addr = pri->ctl_addr;
- struct sockaddr_un *local_addr = pri->local_addr;
- struct sockaddr_un *sun;
- struct request_v3 req;
- int fd, n, err;
-
- pri->control = socket(AF_UNIX, SOCK_STREAM, 0);
- if (pri->control < 0) {
- err = -errno;
- printk(UM_KERN_ERR "daemon_open : control socket failed, "
- "errno = %d\n", -err);
- return err;
- }
-
- if (connect(pri->control, (struct sockaddr *) ctl_addr,
- sizeof(*ctl_addr)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "daemon_open : control connect failed, "
- "errno = %d\n", -err);
- goto out;
- }
-
- fd = socket(AF_UNIX, SOCK_DGRAM, 0);
- if (fd < 0) {
- err = -errno;
- printk(UM_KERN_ERR "daemon_open : data socket failed, "
- "errno = %d\n", -err);
- goto out;
- }
- if (bind(fd, (struct sockaddr *) local_addr, sizeof(*local_addr)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "daemon_open : data bind failed, "
- "errno = %d\n", -err);
- goto out_close;
- }
-
- sun = uml_kmalloc(sizeof(struct sockaddr_un), UM_GFP_KERNEL);
- if (sun == NULL) {
- printk(UM_KERN_ERR "new_addr: allocation of sockaddr_un "
- "failed\n");
- err = -ENOMEM;
- goto out_close;
- }
-
- req.magic = SWITCH_MAGIC;
- req.version = SWITCH_VERSION;
- req.type = REQ_NEW_CONTROL;
- req.sock = *local_addr;
- n = write(pri->control, &req, sizeof(req));
- if (n != sizeof(req)) {
- printk(UM_KERN_ERR "daemon_open : control setup request "
- "failed, err = %d\n", -errno);
- err = -ENOTCONN;
- goto out_free;
- }
-
- n = read(pri->control, sun, sizeof(*sun));
- if (n != sizeof(*sun)) {
- printk(UM_KERN_ERR "daemon_open : read of data socket failed, "
- "err = %d\n", -errno);
- err = -ENOTCONN;
- goto out_free;
- }
-
- pri->data_addr = sun;
- return fd;
-
- out_free:
- kfree(sun);
- out_close:
- close(fd);
- out:
- close(pri->control);
- return err;
-}
-
-static int daemon_user_init(void *data, void *dev)
-{
- struct daemon_data *pri = data;
- struct timeval tv;
- struct {
- char zero;
- int pid;
- int usecs;
- } name;
-
- if (!strcmp(pri->sock_type, "unix"))
- pri->ctl_addr = new_addr(pri->ctl_sock,
- strlen(pri->ctl_sock) + 1);
- name.zero = 0;
- name.pid = os_getpid();
- gettimeofday(&tv, NULL);
- name.usecs = tv.tv_usec;
- pri->local_addr = new_addr(&name, sizeof(name));
- pri->dev = dev;
- pri->fd = connect_to_switch(pri);
- if (pri->fd < 0) {
- kfree(pri->local_addr);
- pri->local_addr = NULL;
- return pri->fd;
- }
-
- return 0;
-}
-
-static int daemon_open(void *data)
-{
- struct daemon_data *pri = data;
- return pri->fd;
-}
-
-static void daemon_remove(void *data)
-{
- struct daemon_data *pri = data;
-
- close(pri->fd);
- pri->fd = -1;
- close(pri->control);
- pri->control = -1;
-
- kfree(pri->data_addr);
- pri->data_addr = NULL;
- kfree(pri->ctl_addr);
- pri->ctl_addr = NULL;
- kfree(pri->local_addr);
- pri->local_addr = NULL;
-}
-
-int daemon_user_write(int fd, void *buf, int len, struct daemon_data *pri)
-{
- struct sockaddr_un *data_addr = pri->data_addr;
-
- return net_sendto(fd, buf, len, data_addr, sizeof(*data_addr));
-}
-
-const struct net_user_info daemon_user_info = {
- .init = daemon_user_init,
- .open = daemon_open,
- .close = NULL,
- .remove = daemon_remove,
- .add_address = NULL,
- .delete_address = NULL,
- .mtu = ETH_MAX_PACKET,
- .max_packet = ETH_MAX_PACKET + ETH_HEADER_OTHER,
-};
diff --git a/arch/um/drivers/slip.h b/arch/um/drivers/slip.h
deleted file mode 100644
index 0f3b7ca99465..000000000000
--- a/arch/um/drivers/slip.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __UM_SLIP_H
-#define __UM_SLIP_H
-
-#include "slip_common.h"
-
-struct slip_data {
- void *dev;
- char name[sizeof("slnnnnn\0")];
- char *addr;
- char *gate_addr;
- int slave;
- struct slip_proto slip;
-};
-
-extern const struct net_user_info slip_user_info;
-
-extern int slip_user_read(int fd, void *buf, int len, struct slip_data *pri);
-extern int slip_user_write(int fd, void *buf, int len, struct slip_data *pri);
-
-#endif
diff --git a/arch/um/drivers/slip_common.c b/arch/um/drivers/slip_common.c
deleted file mode 100644
index 20fe4f42743d..000000000000
--- a/arch/um/drivers/slip_common.c
+++ /dev/null
@@ -1,55 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <string.h>
-#include "slip_common.h"
-#include <net_user.h>
-
-int slip_proto_read(int fd, void *buf, int len, struct slip_proto *slip)
-{
- int i, n, size, start;
-
- if(slip->more > 0){
- i = 0;
- while(i < slip->more){
- size = slip_unesc(slip->ibuf[i++], slip->ibuf,
- &slip->pos, &slip->esc);
- if(size){
- memcpy(buf, slip->ibuf, size);
- memmove(slip->ibuf, &slip->ibuf[i],
- slip->more - i);
- slip->more = slip->more - i;
- return size;
- }
- }
- slip->more = 0;
- }
-
- n = net_read(fd, &slip->ibuf[slip->pos],
- sizeof(slip->ibuf) - slip->pos);
- if(n <= 0)
- return n;
-
- start = slip->pos;
- for(i = 0; i < n; i++){
- size = slip_unesc(slip->ibuf[start + i], slip->ibuf,&slip->pos,
- &slip->esc);
- if(size){
- memcpy(buf, slip->ibuf, size);
- memmove(slip->ibuf, &slip->ibuf[start+i+1],
- n - (i + 1));
- slip->more = n - (i + 1);
- return size;
- }
- }
- return 0;
-}
-
-int slip_proto_write(int fd, void *buf, int len, struct slip_proto *slip)
-{
- int actual, n;
-
- actual = slip_esc(buf, slip->obuf, len);
- n = net_write(fd, slip->obuf, actual);
- if(n < 0)
- return n;
- else return len;
-}
diff --git a/arch/um/drivers/slip_common.h b/arch/um/drivers/slip_common.h
deleted file mode 100644
index d3798b5caf7f..000000000000
--- a/arch/um/drivers/slip_common.h
+++ /dev/null
@@ -1,106 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __UM_SLIP_COMMON_H
-#define __UM_SLIP_COMMON_H
-
-#define BUF_SIZE 1500
- /* two bytes each for a (pathological) max packet of escaped chars + *
- * terminating END char + initial END char */
-#define ENC_BUF_SIZE (2 * BUF_SIZE + 2)
-
-/* SLIP protocol characters. */
-#define SLIP_END 0300 /* indicates end of frame */
-#define SLIP_ESC 0333 /* indicates byte stuffing */
-#define SLIP_ESC_END 0334 /* ESC ESC_END means END 'data' */
-#define SLIP_ESC_ESC 0335 /* ESC ESC_ESC means ESC 'data' */
-
-static inline int slip_unesc(unsigned char c, unsigned char *buf, int *pos,
- int *esc)
-{
- int ret;
-
- switch(c){
- case SLIP_END:
- *esc = 0;
- ret=*pos;
- *pos=0;
- return(ret);
- case SLIP_ESC:
- *esc = 1;
- return(0);
- case SLIP_ESC_ESC:
- if(*esc){
- *esc = 0;
- c = SLIP_ESC;
- }
- break;
- case SLIP_ESC_END:
- if(*esc){
- *esc = 0;
- c = SLIP_END;
- }
- break;
- }
- buf[(*pos)++] = c;
- return(0);
-}
-
-static inline int slip_esc(unsigned char *s, unsigned char *d, int len)
-{
- unsigned char *ptr = d;
- unsigned char c;
-
- /*
- * Send an initial END character to flush out any
- * data that may have accumulated in the receiver
- * due to line noise.
- */
-
- *ptr++ = SLIP_END;
-
- /*
- * For each byte in the packet, send the appropriate
- * character sequence, according to the SLIP protocol.
- */
-
- while (len-- > 0) {
- switch(c = *s++) {
- case SLIP_END:
- *ptr++ = SLIP_ESC;
- *ptr++ = SLIP_ESC_END;
- break;
- case SLIP_ESC:
- *ptr++ = SLIP_ESC;
- *ptr++ = SLIP_ESC_ESC;
- break;
- default:
- *ptr++ = c;
- break;
- }
- }
- *ptr++ = SLIP_END;
- return (ptr - d);
-}
-
-struct slip_proto {
- unsigned char ibuf[ENC_BUF_SIZE];
- unsigned char obuf[ENC_BUF_SIZE];
- int more; /* more data: do not read fd until ibuf has been drained */
- int pos;
- int esc;
-};
-
-static inline void slip_proto_init(struct slip_proto * slip)
-{
- memset(slip->ibuf, 0, sizeof(slip->ibuf));
- memset(slip->obuf, 0, sizeof(slip->obuf));
- slip->more = 0;
- slip->pos = 0;
- slip->esc = 0;
-}
-
-extern int slip_proto_read(int fd, void *buf, int len,
- struct slip_proto *slip);
-extern int slip_proto_write(int fd, void *buf, int len,
- struct slip_proto *slip);
-
-#endif
diff --git a/arch/um/drivers/slip_kern.c b/arch/um/drivers/slip_kern.c
deleted file mode 100644
index c58ccdcc16d6..000000000000
--- a/arch/um/drivers/slip_kern.c
+++ /dev/null
@@ -1,93 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <linux/if_arp.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <net_kern.h>
-#include "slip.h"
-
-struct slip_init {
- char *gate_addr;
-};
-
-static void slip_init(struct net_device *dev, void *data)
-{
- struct uml_net_private *private;
- struct slip_data *spri;
- struct slip_init *init = data;
-
- private = netdev_priv(dev);
- spri = (struct slip_data *) private->user;
-
- memset(spri->name, 0, sizeof(spri->name));
- spri->addr = NULL;
- spri->gate_addr = init->gate_addr;
- spri->slave = -1;
- spri->dev = dev;
-
- slip_proto_init(&spri->slip);
-
- dev->hard_header_len = 0;
- dev->header_ops = NULL;
- dev->addr_len = 0;
- dev->type = ARPHRD_SLIP;
- dev->tx_queue_len = 256;
- dev->flags = IFF_NOARP;
- printk("SLIP backend - SLIP IP = %s\n", spri->gate_addr);
-}
-
-static unsigned short slip_protocol(struct sk_buff *skbuff)
-{
- return htons(ETH_P_IP);
-}
-
-static int slip_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return slip_user_read(fd, skb_mac_header(skb), skb->dev->mtu,
- (struct slip_data *) &lp->user);
-}
-
-static int slip_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return slip_user_write(fd, skb->data, skb->len,
- (struct slip_data *) &lp->user);
-}
-
-static const struct net_kern_info slip_kern_info = {
- .init = slip_init,
- .protocol = slip_protocol,
- .read = slip_read,
- .write = slip_write,
-};
-
-static int slip_setup(char *str, char **mac_out, void *data)
-{
- struct slip_init *init = data;
-
- *init = ((struct slip_init) { .gate_addr = NULL });
-
- if (str[0] != '\0')
- init->gate_addr = str;
- return 1;
-}
-
-static struct transport slip_transport = {
- .list = LIST_HEAD_INIT(slip_transport.list),
- .name = "slip",
- .setup = slip_setup,
- .user = &slip_user_info,
- .kern = &slip_kern_info,
- .private_size = sizeof(struct slip_data),
- .setup_size = sizeof(struct slip_init),
-};
-
-static int register_slip(void)
-{
- register_transport(&slip_transport);
- return 0;
-}
-
-late_initcall(register_slip);
diff --git a/arch/um/drivers/slip_user.c b/arch/um/drivers/slip_user.c
deleted file mode 100644
index 7334019c9e60..000000000000
--- a/arch/um/drivers/slip_user.c
+++ /dev/null
@@ -1,252 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <string.h>
-#include <termios.h>
-#include <sys/wait.h>
-#include <net_user.h>
-#include <os.h>
-#include "slip.h"
-#include <um_malloc.h>
-
-static int slip_user_init(void *data, void *dev)
-{
- struct slip_data *pri = data;
-
- pri->dev = dev;
- return 0;
-}
-
-static int set_up_tty(int fd)
-{
- int i;
- struct termios tios;
-
- if (tcgetattr(fd, &tios) < 0) {
- printk(UM_KERN_ERR "could not get initial terminal "
- "attributes\n");
- return -1;
- }
-
- tios.c_cflag = CS8 | CREAD | HUPCL | CLOCAL;
- tios.c_iflag = IGNBRK | IGNPAR;
- tios.c_oflag = 0;
- tios.c_lflag = 0;
- for (i = 0; i < NCCS; i++)
- tios.c_cc[i] = 0;
- tios.c_cc[VMIN] = 1;
- tios.c_cc[VTIME] = 0;
-
- cfsetospeed(&tios, B38400);
- cfsetispeed(&tios, B38400);
-
- if (tcsetattr(fd, TCSAFLUSH, &tios) < 0) {
- printk(UM_KERN_ERR "failed to set terminal attributes\n");
- return -1;
- }
- return 0;
-}
-
-struct slip_pre_exec_data {
- int stdin_fd;
- int stdout_fd;
- int close_me;
-};
-
-static void slip_pre_exec(void *arg)
-{
- struct slip_pre_exec_data *data = arg;
-
- if (data->stdin_fd >= 0)
- dup2(data->stdin_fd, 0);
- dup2(data->stdout_fd, 1);
- if (data->close_me >= 0)
- close(data->close_me);
-}
-
-static int slip_tramp(char **argv, int fd)
-{
- struct slip_pre_exec_data pe_data;
- char *output;
- int pid, fds[2], err, output_len;
-
- err = os_pipe(fds, 1, 0);
- if (err < 0) {
- printk(UM_KERN_ERR "slip_tramp : pipe failed, err = %d\n",
- -err);
- goto out;
- }
-
- err = 0;
- pe_data.stdin_fd = fd;
- pe_data.stdout_fd = fds[1];
- pe_data.close_me = fds[0];
- err = run_helper(slip_pre_exec, &pe_data, argv);
- if (err < 0)
- goto out_close;
- pid = err;
-
- output_len = UM_KERN_PAGE_SIZE;
- output = uml_kmalloc(output_len, UM_GFP_KERNEL);
- if (output == NULL) {
- printk(UM_KERN_ERR "slip_tramp : failed to allocate output "
- "buffer\n");
- os_kill_process(pid, 1);
- err = -ENOMEM;
- goto out_close;
- }
-
- close(fds[1]);
- read_output(fds[0], output, output_len);
- printk("%s", output);
-
- err = helper_wait(pid);
- close(fds[0]);
-
- kfree(output);
- return err;
-
-out_close:
- close(fds[0]);
- close(fds[1]);
-out:
- return err;
-}
-
-static int slip_open(void *data)
-{
- struct slip_data *pri = data;
- char version_buf[sizeof("nnnnn\0")];
- char gate_buf[sizeof("nnn.nnn.nnn.nnn\0")];
- char *argv[] = { "uml_net", version_buf, "slip", "up", gate_buf,
- NULL };
- int sfd, mfd, err;
-
- err = get_pty();
- if (err < 0) {
- printk(UM_KERN_ERR "slip-open : Failed to open pty, err = %d\n",
- -err);
- goto out;
- }
- mfd = err;
-
- err = open(ptsname(mfd), O_RDWR, 0);
- if (err < 0) {
- printk(UM_KERN_ERR "Couldn't open tty for slip line, "
- "err = %d\n", -err);
- goto out_close;
- }
- sfd = err;
-
- err = set_up_tty(sfd);
- if (err)
- goto out_close2;
-
- pri->slave = sfd;
- pri->slip.pos = 0;
- pri->slip.esc = 0;
- if (pri->gate_addr != NULL) {
- sprintf(version_buf, "%d", UML_NET_VERSION);
- strcpy(gate_buf, pri->gate_addr);
-
- err = slip_tramp(argv, sfd);
-
- if (err < 0) {
- printk(UM_KERN_ERR "slip_tramp failed - err = %d\n",
- -err);
- goto out_close2;
- }
- err = os_get_ifname(pri->slave, pri->name);
- if (err < 0) {
- printk(UM_KERN_ERR "get_ifname failed, err = %d\n",
- -err);
- goto out_close2;
- }
- iter_addresses(pri->dev, open_addr, pri->name);
- }
- else {
- err = os_set_slip(sfd);
- if (err < 0) {
- printk(UM_KERN_ERR "Failed to set slip discipline "
- "encapsulation - err = %d\n", -err);
- goto out_close2;
- }
- }
- return mfd;
-out_close2:
- close(sfd);
-out_close:
- close(mfd);
-out:
- return err;
-}
-
-static void slip_close(int fd, void *data)
-{
- struct slip_data *pri = data;
- char version_buf[sizeof("nnnnn\0")];
- char *argv[] = { "uml_net", version_buf, "slip", "down", pri->name,
- NULL };
- int err;
-
- if (pri->gate_addr != NULL)
- iter_addresses(pri->dev, close_addr, pri->name);
-
- sprintf(version_buf, "%d", UML_NET_VERSION);
-
- err = slip_tramp(argv, pri->slave);
-
- if (err != 0)
- printk(UM_KERN_ERR "slip_tramp failed - errno = %d\n", -err);
- close(fd);
- close(pri->slave);
- pri->slave = -1;
-}
-
-int slip_user_read(int fd, void *buf, int len, struct slip_data *pri)
-{
- return slip_proto_read(fd, buf, len, &pri->slip);
-}
-
-int slip_user_write(int fd, void *buf, int len, struct slip_data *pri)
-{
- return slip_proto_write(fd, buf, len, &pri->slip);
-}
-
-static void slip_add_addr(unsigned char *addr, unsigned char *netmask,
- void *data)
-{
- struct slip_data *pri = data;
-
- if (pri->slave < 0)
- return;
- open_addr(addr, netmask, pri->name);
-}
-
-static void slip_del_addr(unsigned char *addr, unsigned char *netmask,
- void *data)
-{
- struct slip_data *pri = data;
-
- if (pri->slave < 0)
- return;
- close_addr(addr, netmask, pri->name);
-}
-
-const struct net_user_info slip_user_info = {
- .init = slip_user_init,
- .open = slip_open,
- .close = slip_close,
- .remove = NULL,
- .add_address = slip_add_addr,
- .delete_address = slip_del_addr,
- .mtu = BUF_SIZE,
- .max_packet = BUF_SIZE,
-};
diff --git a/arch/um/drivers/slirp.h b/arch/um/drivers/slirp.h
deleted file mode 100644
index 4aef2b88249a..000000000000
--- a/arch/um/drivers/slirp.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __UM_SLIRP_H
-#define __UM_SLIRP_H
-
-#include "slip_common.h"
-
-#define SLIRP_MAX_ARGS 100
-/*
- * XXX this next definition is here because I don't understand why this
- * initializer doesn't work in slirp_kern.c:
- *
- * argv : { init->argv[ 0 ... SLIRP_MAX_ARGS-1 ] },
- *
- * or why I can't typecast like this:
- *
- * argv : (char* [SLIRP_MAX_ARGS])(init->argv),
- */
-struct arg_list_dummy_wrapper { char *argv[SLIRP_MAX_ARGS]; };
-
-struct slirp_data {
- void *dev;
- struct arg_list_dummy_wrapper argw;
- int pid;
- int slave;
- struct slip_proto slip;
-};
-
-extern const struct net_user_info slirp_user_info;
-
-extern int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri);
-extern int slirp_user_write(int fd, void *buf, int len,
- struct slirp_data *pri);
-
-#endif
diff --git a/arch/um/drivers/slirp_kern.c b/arch/um/drivers/slirp_kern.c
deleted file mode 100644
index 0a6151ee9572..000000000000
--- a/arch/um/drivers/slirp_kern.c
+++ /dev/null
@@ -1,120 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <linux/if_arp.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/string.h>
-#include <net_kern.h>
-#include <net_user.h>
-#include "slirp.h"
-
-struct slirp_init {
- struct arg_list_dummy_wrapper argw; /* XXX should be simpler... */
-};
-
-static void slirp_init(struct net_device *dev, void *data)
-{
- struct uml_net_private *private;
- struct slirp_data *spri;
- struct slirp_init *init = data;
- int i;
-
- private = netdev_priv(dev);
- spri = (struct slirp_data *) private->user;
-
- spri->argw = init->argw;
- spri->pid = -1;
- spri->slave = -1;
- spri->dev = dev;
-
- slip_proto_init(&spri->slip);
-
- dev->hard_header_len = 0;
- dev->header_ops = NULL;
- dev->addr_len = 0;
- dev->type = ARPHRD_SLIP;
- dev->tx_queue_len = 256;
- dev->flags = IFF_NOARP;
- printk("SLIRP backend - command line:");
- for (i = 0; spri->argw.argv[i] != NULL; i++)
- printk(" '%s'",spri->argw.argv[i]);
- printk("\n");
-}
-
-static unsigned short slirp_protocol(struct sk_buff *skbuff)
-{
- return htons(ETH_P_IP);
-}
-
-static int slirp_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return slirp_user_read(fd, skb_mac_header(skb), skb->dev->mtu,
- (struct slirp_data *) &lp->user);
-}
-
-static int slirp_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return slirp_user_write(fd, skb->data, skb->len,
- (struct slirp_data *) &lp->user);
-}
-
-const struct net_kern_info slirp_kern_info = {
- .init = slirp_init,
- .protocol = slirp_protocol,
- .read = slirp_read,
- .write = slirp_write,
-};
-
-static int slirp_setup(char *str, char **mac_out, void *data)
-{
- struct slirp_init *init = data;
- int i=0;
-
- *init = ((struct slirp_init) { .argw = { { "slirp", NULL } } });
-
- str = split_if_spec(str, mac_out, NULL);
-
- if (str == NULL) /* no command line given after MAC addr */
- return 1;
-
- do {
- if (i >= SLIRP_MAX_ARGS - 1) {
- printk(KERN_WARNING "slirp_setup: truncating slirp "
- "arguments\n");
- break;
- }
- init->argw.argv[i++] = str;
- while(*str && *str!=',') {
- if (*str == '_')
- *str=' ';
- str++;
- }
- if (*str != ',')
- break;
- *str++ = '\0';
- } while (1);
-
- init->argw.argv[i] = NULL;
- return 1;
-}
-
-static struct transport slirp_transport = {
- .list = LIST_HEAD_INIT(slirp_transport.list),
- .name = "slirp",
- .setup = slirp_setup,
- .user = &slirp_user_info,
- .kern = &slirp_kern_info,
- .private_size = sizeof(struct slirp_data),
- .setup_size = sizeof(struct slirp_init),
-};
-
-static int register_slirp(void)
-{
- register_transport(&slirp_transport);
- return 0;
-}
-
-late_initcall(register_slirp);
diff --git a/arch/um/drivers/slirp_user.c b/arch/um/drivers/slirp_user.c
deleted file mode 100644
index 97228aa080cb..000000000000
--- a/arch/um/drivers/slirp_user.c
+++ /dev/null
@@ -1,124 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/wait.h>
-#include <net_user.h>
-#include <os.h>
-#include "slirp.h"
-
-static int slirp_user_init(void *data, void *dev)
-{
- struct slirp_data *pri = data;
-
- pri->dev = dev;
- return 0;
-}
-
-struct slirp_pre_exec_data {
- int stdin_fd;
- int stdout_fd;
-};
-
-static void slirp_pre_exec(void *arg)
-{
- struct slirp_pre_exec_data *data = arg;
-
- if (data->stdin_fd != -1)
- dup2(data->stdin_fd, 0);
- if (data->stdout_fd != -1)
- dup2(data->stdout_fd, 1);
-}
-
-static int slirp_tramp(char **argv, int fd)
-{
- struct slirp_pre_exec_data pe_data;
- int pid;
-
- pe_data.stdin_fd = fd;
- pe_data.stdout_fd = fd;
- pid = run_helper(slirp_pre_exec, &pe_data, argv);
-
- return pid;
-}
-
-static int slirp_open(void *data)
-{
- struct slirp_data *pri = data;
- int fds[2], err;
-
- err = os_pipe(fds, 1, 1);
- if (err)
- return err;
-
- err = slirp_tramp(pri->argw.argv, fds[1]);
- if (err < 0) {
- printk(UM_KERN_ERR "slirp_tramp failed - errno = %d\n", -err);
- goto out;
- }
-
- pri->slave = fds[1];
- pri->slip.pos = 0;
- pri->slip.esc = 0;
- pri->pid = err;
-
- return fds[0];
-out:
- close(fds[0]);
- close(fds[1]);
- return err;
-}
-
-static void slirp_close(int fd, void *data)
-{
- struct slirp_data *pri = data;
- int err;
-
- close(fd);
- close(pri->slave);
-
- pri->slave = -1;
-
- if (pri->pid<1) {
- printk(UM_KERN_ERR "slirp_close: no child process to shut "
- "down\n");
- return;
- }
-
-#if 0
- if (kill(pri->pid, SIGHUP)<0) {
- printk(UM_KERN_ERR "slirp_close: sending hangup to %d failed "
- "(%d)\n", pri->pid, errno);
- }
-#endif
- err = helper_wait(pri->pid);
- if (err < 0)
- return;
-
- pri->pid = -1;
-}
-
-int slirp_user_read(int fd, void *buf, int len, struct slirp_data *pri)
-{
- return slip_proto_read(fd, buf, len, &pri->slip);
-}
-
-int slirp_user_write(int fd, void *buf, int len, struct slirp_data *pri)
-{
- return slip_proto_write(fd, buf, len, &pri->slip);
-}
-
-const struct net_user_info slirp_user_info = {
- .init = slirp_user_init,
- .open = slirp_open,
- .close = slirp_close,
- .remove = NULL,
- .add_address = NULL,
- .delete_address = NULL,
- .mtu = BUF_SIZE,
- .max_packet = BUF_SIZE,
-};
diff --git a/arch/um/drivers/umcast.h b/arch/um/drivers/umcast.h
deleted file mode 100644
index fe39bee1e3bd..000000000000
--- a/arch/um/drivers/umcast.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#ifndef __DRIVERS_UMCAST_H
-#define __DRIVERS_UMCAST_H
-
-#include <net_user.h>
-
-struct umcast_data {
- char *addr;
- unsigned short lport;
- unsigned short rport;
- void *listen_addr;
- void *remote_addr;
- int ttl;
- int unicast;
- void *dev;
-};
-
-extern const struct net_user_info umcast_user_info;
-
-extern int umcast_user_write(int fd, void *buf, int len,
- struct umcast_data *pri);
-
-#endif
diff --git a/arch/um/drivers/umcast_kern.c b/arch/um/drivers/umcast_kern.c
deleted file mode 100644
index 595a54f2b9c6..000000000000
--- a/arch/um/drivers/umcast_kern.c
+++ /dev/null
@@ -1,188 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * user-mode-linux networking multicast transport
- * Copyright (C) 2001 by Harald Welte <laforge at gnumonks.org>
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- *
- * based on the existing uml-networking code, which is
- * Copyright (C) 2001 Lennert Buytenhek (buytenh at gnu.org) and
- * James Leu (jleu at mindspring.net).
- * Copyright (C) 2001 by various other people who didn't put their name here.
- *
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include "umcast.h"
-#include <net_kern.h>
-
-struct umcast_init {
- char *addr;
- int lport;
- int rport;
- int ttl;
- bool unicast;
-};
-
-static void umcast_init(struct net_device *dev, void *data)
-{
- struct uml_net_private *pri;
- struct umcast_data *dpri;
- struct umcast_init *init = data;
-
- pri = netdev_priv(dev);
- dpri = (struct umcast_data *) pri->user;
- dpri->addr = init->addr;
- dpri->lport = init->lport;
- dpri->rport = init->rport;
- dpri->unicast = init->unicast;
- dpri->ttl = init->ttl;
- dpri->dev = dev;
-
- if (dpri->unicast) {
- printk(KERN_INFO "ucast backend address: %s:%u listen port: "
- "%u\n", dpri->addr, dpri->rport, dpri->lport);
- } else {
- printk(KERN_INFO "mcast backend multicast address: %s:%u, "
- "TTL:%u\n", dpri->addr, dpri->lport, dpri->ttl);
- }
-}
-
-static int umcast_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return net_recvfrom(fd, skb_mac_header(skb),
- skb->dev->mtu + ETH_HEADER_OTHER);
-}
-
-static int umcast_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return umcast_user_write(fd, skb->data, skb->len,
- (struct umcast_data *) &lp->user);
-}
-
-static const struct net_kern_info umcast_kern_info = {
- .init = umcast_init,
- .protocol = eth_protocol,
- .read = umcast_read,
- .write = umcast_write,
-};
-
-static int mcast_setup(char *str, char **mac_out, void *data)
-{
- struct umcast_init *init = data;
- char *port_str = NULL, *ttl_str = NULL, *remain;
- char *last;
-
- *init = ((struct umcast_init)
- { .addr = "239.192.168.1",
- .lport = 1102,
- .ttl = 1 });
-
- remain = split_if_spec(str, mac_out, &init->addr, &port_str, &ttl_str,
- NULL);
- if (remain != NULL) {
- printk(KERN_ERR "mcast_setup - Extra garbage on "
- "specification : '%s'\n", remain);
- return 0;
- }
-
- if (port_str != NULL) {
- init->lport = simple_strtoul(port_str, &last, 10);
- if ((*last != '\0') || (last == port_str)) {
- printk(KERN_ERR "mcast_setup - Bad port : '%s'\n",
- port_str);
- return 0;
- }
- }
-
- if (ttl_str != NULL) {
- init->ttl = simple_strtoul(ttl_str, &last, 10);
- if ((*last != '\0') || (last == ttl_str)) {
- printk(KERN_ERR "mcast_setup - Bad ttl : '%s'\n",
- ttl_str);
- return 0;
- }
- }
-
- init->unicast = false;
- init->rport = init->lport;
-
- printk(KERN_INFO "Configured mcast device: %s:%u-%u\n", init->addr,
- init->lport, init->ttl);
-
- return 1;
-}
-
-static int ucast_setup(char *str, char **mac_out, void *data)
-{
- struct umcast_init *init = data;
- char *lport_str = NULL, *rport_str = NULL, *remain;
- char *last;
-
- *init = ((struct umcast_init)
- { .addr = "",
- .lport = 1102,
- .rport = 1102 });
-
- remain = split_if_spec(str, mac_out, &init->addr,
- &lport_str, &rport_str, NULL);
- if (remain != NULL) {
- printk(KERN_ERR "ucast_setup - Extra garbage on "
- "specification : '%s'\n", remain);
- return 0;
- }
-
- if (lport_str != NULL) {
- init->lport = simple_strtoul(lport_str, &last, 10);
- if ((*last != '\0') || (last == lport_str)) {
- printk(KERN_ERR "ucast_setup - Bad listen port : "
- "'%s'\n", lport_str);
- return 0;
- }
- }
-
- if (rport_str != NULL) {
- init->rport = simple_strtoul(rport_str, &last, 10);
- if ((*last != '\0') || (last == rport_str)) {
- printk(KERN_ERR "ucast_setup - Bad remote port : "
- "'%s'\n", rport_str);
- return 0;
- }
- }
-
- init->unicast = true;
-
- printk(KERN_INFO "Configured ucast device: :%u -> %s:%u\n",
- init->lport, init->addr, init->rport);
-
- return 1;
-}
-
-static struct transport mcast_transport = {
- .list = LIST_HEAD_INIT(mcast_transport.list),
- .name = "mcast",
- .setup = mcast_setup,
- .user = &umcast_user_info,
- .kern = &umcast_kern_info,
- .private_size = sizeof(struct umcast_data),
- .setup_size = sizeof(struct umcast_init),
-};
-
-static struct transport ucast_transport = {
- .list = LIST_HEAD_INIT(ucast_transport.list),
- .name = "ucast",
- .setup = ucast_setup,
- .user = &umcast_user_info,
- .kern = &umcast_kern_info,
- .private_size = sizeof(struct umcast_data),
- .setup_size = sizeof(struct umcast_init),
-};
-
-static int register_umcast(void)
-{
- register_transport(&mcast_transport);
- register_transport(&ucast_transport);
- return 0;
-}
-
-late_initcall(register_umcast);
diff --git a/arch/um/drivers/umcast_user.c b/arch/um/drivers/umcast_user.c
deleted file mode 100644
index b50b13cff04e..000000000000
--- a/arch/um/drivers/umcast_user.c
+++ /dev/null
@@ -1,184 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * user-mode-linux networking multicast transport
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Copyright (C) 2001 by Harald Welte <laforge at gnumonks.org>
- *
- * based on the existing uml-networking code, which is
- * Copyright (C) 2001 Lennert Buytenhek (buytenh at gnu.org) and
- * James Leu (jleu at mindspring.net).
- * Copyright (C) 2001 by various other people who didn't put their name here.
- *
- *
- */
-
-#include <unistd.h>
-#include <errno.h>
-#include <netinet/in.h>
-#include "umcast.h"
-#include <net_user.h>
-#include <um_malloc.h>
-
-static struct sockaddr_in *new_addr(char *addr, unsigned short port)
-{
- struct sockaddr_in *sin;
-
- sin = uml_kmalloc(sizeof(struct sockaddr_in), UM_GFP_KERNEL);
- if (sin == NULL) {
- printk(UM_KERN_ERR "new_addr: allocation of sockaddr_in "
- "failed\n");
- return NULL;
- }
- sin->sin_family = AF_INET;
- if (addr)
- sin->sin_addr.s_addr = in_aton(addr);
- else
- sin->sin_addr.s_addr = INADDR_ANY;
- sin->sin_port = htons(port);
- return sin;
-}
-
-static int umcast_user_init(void *data, void *dev)
-{
- struct umcast_data *pri = data;
-
- pri->remote_addr = new_addr(pri->addr, pri->rport);
- if (pri->unicast)
- pri->listen_addr = new_addr(NULL, pri->lport);
- else
- pri->listen_addr = pri->remote_addr;
- pri->dev = dev;
- return 0;
-}
-
-static void umcast_remove(void *data)
-{
- struct umcast_data *pri = data;
-
- kfree(pri->listen_addr);
- if (pri->unicast)
- kfree(pri->remote_addr);
- pri->listen_addr = pri->remote_addr = NULL;
-}
-
-static int umcast_open(void *data)
-{
- struct umcast_data *pri = data;
- struct sockaddr_in *lsin = pri->listen_addr;
- struct sockaddr_in *rsin = pri->remote_addr;
- struct ip_mreq mreq;
- int fd, yes = 1, err = -EINVAL;
-
-
- if ((!pri->unicast && lsin->sin_addr.s_addr == 0) ||
- (rsin->sin_addr.s_addr == 0) ||
- (lsin->sin_port == 0) || (rsin->sin_port == 0))
- goto out;
-
- fd = socket(AF_INET, SOCK_DGRAM, 0);
-
- if (fd < 0) {
- err = -errno;
- printk(UM_KERN_ERR "umcast_open : data socket failed, "
- "errno = %d\n", errno);
- goto out;
- }
-
- if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "umcast_open: SO_REUSEADDR failed, "
- "errno = %d\n", errno);
- goto out_close;
- }
-
- if (!pri->unicast) {
- /* set ttl according to config */
- if (setsockopt(fd, SOL_IP, IP_MULTICAST_TTL, &pri->ttl,
- sizeof(pri->ttl)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "umcast_open: IP_MULTICAST_TTL "
- "failed, error = %d\n", errno);
- goto out_close;
- }
-
- /* set LOOP, so data does get fed back to local sockets */
- if (setsockopt(fd, SOL_IP, IP_MULTICAST_LOOP,
- &yes, sizeof(yes)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "umcast_open: IP_MULTICAST_LOOP "
- "failed, error = %d\n", errno);
- goto out_close;
- }
- }
-
- /* bind socket to the address */
- if (bind(fd, (struct sockaddr *) lsin, sizeof(*lsin)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "umcast_open : data bind failed, "
- "errno = %d\n", errno);
- goto out_close;
- }
-
- if (!pri->unicast) {
- /* subscribe to the multicast group */
- mreq.imr_multiaddr.s_addr = lsin->sin_addr.s_addr;
- mreq.imr_interface.s_addr = 0;
- if (setsockopt(fd, SOL_IP, IP_ADD_MEMBERSHIP,
- &mreq, sizeof(mreq)) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "umcast_open: IP_ADD_MEMBERSHIP "
- "failed, error = %d\n", errno);
- printk(UM_KERN_ERR "There appears not to be a "
- "multicast-capable network interface on the "
- "host.\n");
- printk(UM_KERN_ERR "eth0 should be configured in order "
- "to use the multicast transport.\n");
- goto out_close;
- }
- }
-
- return fd;
-
- out_close:
- close(fd);
- out:
- return err;
-}
-
-static void umcast_close(int fd, void *data)
-{
- struct umcast_data *pri = data;
-
- if (!pri->unicast) {
- struct ip_mreq mreq;
- struct sockaddr_in *lsin = pri->listen_addr;
-
- mreq.imr_multiaddr.s_addr = lsin->sin_addr.s_addr;
- mreq.imr_interface.s_addr = 0;
- if (setsockopt(fd, SOL_IP, IP_DROP_MEMBERSHIP,
- &mreq, sizeof(mreq)) < 0) {
- printk(UM_KERN_ERR "umcast_close: IP_DROP_MEMBERSHIP "
- "failed, error = %d\n", errno);
- }
- }
-
- close(fd);
-}
-
-int umcast_user_write(int fd, void *buf, int len, struct umcast_data *pri)
-{
- struct sockaddr_in *data_addr = pri->remote_addr;
-
- return net_sendto(fd, buf, len, data_addr, sizeof(*data_addr));
-}
-
-const struct net_user_info umcast_user_info = {
- .init = umcast_user_init,
- .open = umcast_open,
- .close = umcast_close,
- .remove = umcast_remove,
- .add_address = NULL,
- .delete_address = NULL,
- .mtu = ETH_MAX_PACKET,
- .max_packet = ETH_MAX_PACKET + ETH_HEADER_OTHER,
-};
diff --git a/arch/um/drivers/vde.h b/arch/um/drivers/vde.h
deleted file mode 100644
index cab0379e6142..000000000000
--- a/arch/um/drivers/vde.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2007 Luca Bigliardi (shammash at artha.org).
- */
-
-#ifndef __UM_VDE_H__
-#define __UM_VDE_H__
-
-struct vde_data {
- char *vde_switch;
- char *descr;
- void *args;
- void *conn;
- void *dev;
-};
-
-struct vde_init {
- char *vde_switch;
- char *descr;
- int port;
- char *group;
- int mode;
-};
-
-extern const struct net_user_info vde_user_info;
-
-extern void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init);
-
-extern int vde_user_read(void *conn, void *buf, int len);
-extern int vde_user_write(void *conn, void *buf, int len);
-
-#endif
diff --git a/arch/um/drivers/vde_kern.c b/arch/um/drivers/vde_kern.c
deleted file mode 100644
index bc6f22cbfb35..000000000000
--- a/arch/um/drivers/vde_kern.c
+++ /dev/null
@@ -1,129 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2007 Luca Bigliardi (shammash at artha.org).
- *
- * Transport usage:
- * ethN=vde,<vde_switch>,<mac addr>,<port>,<group>,<mode>,<description>
- *
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <net_kern.h>
-#include <net_user.h>
-#include "vde.h"
-
-static void vde_init(struct net_device *dev, void *data)
-{
- struct vde_init *init = data;
- struct uml_net_private *pri;
- struct vde_data *vpri;
-
- pri = netdev_priv(dev);
- vpri = (struct vde_data *) pri->user;
-
- vpri->vde_switch = init->vde_switch;
- vpri->descr = init->descr ? init->descr : "UML vde_transport";
- vpri->args = NULL;
- vpri->conn = NULL;
- vpri->dev = dev;
-
- printk("vde backend - %s, ", vpri->vde_switch ?
- vpri->vde_switch : "(default socket)");
-
- vde_init_libstuff(vpri, init);
-
- printk("\n");
-}
-
-static int vde_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- struct vde_data *pri = (struct vde_data *) &lp->user;
-
- if (pri->conn != NULL)
- return vde_user_read(pri->conn, skb_mac_header(skb),
- skb->dev->mtu + ETH_HEADER_OTHER);
-
- printk(KERN_ERR "vde_read - we have no VDECONN to read from");
- return -EBADF;
-}
-
-static int vde_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- struct vde_data *pri = (struct vde_data *) &lp->user;
-
- if (pri->conn != NULL)
- return vde_user_write((void *)pri->conn, skb->data,
- skb->len);
-
- printk(KERN_ERR "vde_write - we have no VDECONN to write to");
- return -EBADF;
-}
-
-static const struct net_kern_info vde_kern_info = {
- .init = vde_init,
- .protocol = eth_protocol,
- .read = vde_read,
- .write = vde_write,
-};
-
-static int vde_setup(char *str, char **mac_out, void *data)
-{
- struct vde_init *init = data;
- char *remain, *port_str = NULL, *mode_str = NULL, *last;
-
- *init = ((struct vde_init)
- { .vde_switch = NULL,
- .descr = NULL,
- .port = 0,
- .group = NULL,
- .mode = 0 });
-
- remain = split_if_spec(str, &init->vde_switch, mac_out, &port_str,
- &init->group, &mode_str, &init->descr, NULL);
-
- if (remain != NULL)
- printk(KERN_WARNING "vde_setup - Ignoring extra data :"
- "'%s'\n", remain);
-
- if (port_str != NULL) {
- init->port = simple_strtoul(port_str, &last, 10);
- if ((*last != '\0') || (last == port_str)) {
- printk(KERN_ERR "vde_setup - Bad port : '%s'\n",
- port_str);
- return 0;
- }
- }
-
- if (mode_str != NULL) {
- init->mode = simple_strtoul(mode_str, &last, 8);
- if ((*last != '\0') || (last == mode_str)) {
- printk(KERN_ERR "vde_setup - Bad mode : '%s'\n",
- mode_str);
- return 0;
- }
- }
-
- printk(KERN_INFO "Configured vde device: %s\n", init->vde_switch ?
- init->vde_switch : "(default socket)");
-
- return 1;
-}
-
-static struct transport vde_transport = {
- .list = LIST_HEAD_INIT(vde_transport.list),
- .name = "vde",
- .setup = vde_setup,
- .user = &vde_user_info,
- .kern = &vde_kern_info,
- .private_size = sizeof(struct vde_data),
- .setup_size = sizeof(struct vde_init),
-};
-
-static int register_vde(void)
-{
- register_transport(&vde_transport);
- return 0;
-}
-
-late_initcall(register_vde);
diff --git a/arch/um/drivers/vde_user.c b/arch/um/drivers/vde_user.c
deleted file mode 100644
index bc7dc4e1e486..000000000000
--- a/arch/um/drivers/vde_user.c
+++ /dev/null
@@ -1,125 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2007 Luca Bigliardi (shammash at artha.org).
- */
-
-#include <stddef.h>
-#include <errno.h>
-#include <libvdeplug.h>
-#include <net_user.h>
-#include <um_malloc.h>
-#include "vde.h"
-
-static int vde_user_init(void *data, void *dev)
-{
- struct vde_data *pri = data;
- VDECONN *conn = NULL;
- int err = -EINVAL;
-
- pri->dev = dev;
-
- conn = vde_open(pri->vde_switch, pri->descr, pri->args);
-
- if (conn == NULL) {
- err = -errno;
- printk(UM_KERN_ERR "vde_user_init: vde_open failed, "
- "errno = %d\n", errno);
- return err;
- }
-
- printk(UM_KERN_INFO "vde backend - connection opened\n");
-
- pri->conn = conn;
-
- return 0;
-}
-
-static int vde_user_open(void *data)
-{
- struct vde_data *pri = data;
-
- if (pri->conn != NULL)
- return vde_datafd(pri->conn);
-
- printk(UM_KERN_WARNING "vde_open - we have no VDECONN to open");
- return -EINVAL;
-}
-
-static void vde_remove(void *data)
-{
- struct vde_data *pri = data;
-
- if (pri->conn != NULL) {
- printk(UM_KERN_INFO "vde backend - closing connection\n");
- vde_close(pri->conn);
- pri->conn = NULL;
- kfree(pri->args);
- pri->args = NULL;
- return;
- }
-
- printk(UM_KERN_WARNING "vde_remove - we have no VDECONN to remove");
-}
-
-const struct net_user_info vde_user_info = {
- .init = vde_user_init,
- .open = vde_user_open,
- .close = NULL,
- .remove = vde_remove,
- .add_address = NULL,
- .delete_address = NULL,
- .mtu = ETH_MAX_PACKET,
- .max_packet = ETH_MAX_PACKET + ETH_HEADER_OTHER,
-};
-
-void vde_init_libstuff(struct vde_data *vpri, struct vde_init *init)
-{
- struct vde_open_args *args;
-
- vpri->args = uml_kmalloc(sizeof(struct vde_open_args), UM_GFP_KERNEL);
- if (vpri->args == NULL) {
- printk(UM_KERN_ERR "vde_init_libstuff - vde_open_args "
- "allocation failed");
- return;
- }
-
- args = vpri->args;
-
- args->port = init->port;
- args->group = init->group;
- args->mode = init->mode ? init->mode : 0700;
-
- args->port ? printk("port %d", args->port) :
- printk("undefined port");
-}
-
-int vde_user_read(void *conn, void *buf, int len)
-{
- VDECONN *vconn = conn;
- int rv;
-
- if (vconn == NULL)
- return 0;
-
- rv = vde_recv(vconn, buf, len, 0);
- if (rv < 0) {
- if (errno == EAGAIN)
- return 0;
- return -errno;
- }
- else if (rv == 0)
- return -ENOTCONN;
-
- return rv;
-}
-
-int vde_user_write(void *conn, void *buf, int len)
-{
- VDECONN *vconn = conn;
-
- if (vconn == NULL)
- return 0;
-
- return vde_send(vconn, buf, len, 0);
-}
-
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 152a60080d5b..e63a74a5ff19 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -143,7 +143,6 @@ extern int os_access(const char *file, int mode);
extern int os_set_exec_close(int fd);
extern int os_ioctl_generic(int fd, unsigned int cmd, unsigned long arg);
extern int os_get_ifname(int fd, char *namebuf);
-extern int os_set_slip(int fd);
extern int os_mode_fd(int fd, int mode);
extern int os_seek_file(int fd, unsigned long long offset);
diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile
index 049dfa5bc9c6..fae836713487 100644
--- a/arch/um/os-Linux/Makefile
+++ b/arch/um/os-Linux/Makefile
@@ -8,7 +8,7 @@ KCOV_INSTRUMENT := n
obj-y = execvp.o file.o helper.o irq.o main.o mem.o process.o \
registers.o sigio.o signal.o start_up.o time.o tty.o \
- umid.o user_syms.o util.o drivers/ skas/
+ umid.o user_syms.o util.o skas/
CFLAGS_signal.o += -Wframe-larger-than=4096
diff --git a/arch/um/os-Linux/drivers/Makefile b/arch/um/os-Linux/drivers/Makefile
deleted file mode 100644
index cf2d75bb1884..000000000000
--- a/arch/um/os-Linux/drivers/Makefile
+++ /dev/null
@@ -1,13 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Copyright (C) 2000, 2002 Jeff Dike (jdike at karaya.com)
-#
-
-ethertap-objs := ethertap_kern.o ethertap_user.o
-tuntap-objs := tuntap_kern.o tuntap_user.o
-
-obj-y =
-obj-$(CONFIG_UML_NET_ETHERTAP) += ethertap.o
-obj-$(CONFIG_UML_NET_TUNTAP) += tuntap.o
-
-include $(srctree)/arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/drivers/etap.h b/arch/um/os-Linux/drivers/etap.h
deleted file mode 100644
index a475259f90e1..000000000000
--- a/arch/um/os-Linux/drivers/etap.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#ifndef __DRIVERS_ETAP_H
-#define __DRIVERS_ETAP_H
-
-#include <net_user.h>
-
-struct ethertap_data {
- char *dev_name;
- char *gate_addr;
- int data_fd;
- int control_fd;
- void *dev;
-};
-
-extern const struct net_user_info ethertap_user_info;
-
-#endif
diff --git a/arch/um/os-Linux/drivers/ethertap_kern.c b/arch/um/os-Linux/drivers/ethertap_kern.c
deleted file mode 100644
index 5e5ee40680ce..000000000000
--- a/arch/um/os-Linux/drivers/ethertap_kern.c
+++ /dev/null
@@ -1,100 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 Lennert Buytenhek (buytenh at gnu.org) and
- * James Leu (jleu at mindspring.net).
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Copyright (C) 2001 by various other people who didn't put their name here.
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include "etap.h"
-#include <net_kern.h>
-
-struct ethertap_init {
- char *dev_name;
- char *gate_addr;
-};
-
-static void etap_init(struct net_device *dev, void *data)
-{
- struct uml_net_private *pri;
- struct ethertap_data *epri;
- struct ethertap_init *init = data;
-
- pri = netdev_priv(dev);
- epri = (struct ethertap_data *) pri->user;
- epri->dev_name = init->dev_name;
- epri->gate_addr = init->gate_addr;
- epri->data_fd = -1;
- epri->control_fd = -1;
- epri->dev = dev;
-
- printk(KERN_INFO "ethertap backend - %s", epri->dev_name);
- if (epri->gate_addr != NULL)
- printk(KERN_CONT ", IP = %s", epri->gate_addr);
- printk(KERN_CONT "\n");
-}
-
-static int etap_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- int len;
-
- len = net_recvfrom(fd, skb_mac_header(skb),
- skb->dev->mtu + 2 + ETH_HEADER_ETHERTAP);
- if (len <= 0)
- return(len);
-
- skb_pull(skb, 2);
- len -= 2;
- return len;
-}
-
-static int etap_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- skb_push(skb, 2);
- return net_send(fd, skb->data, skb->len);
-}
-
-const struct net_kern_info ethertap_kern_info = {
- .init = etap_init,
- .protocol = eth_protocol,
- .read = etap_read,
- .write = etap_write,
-};
-
-static int ethertap_setup(char *str, char **mac_out, void *data)
-{
- struct ethertap_init *init = data;
-
- *init = ((struct ethertap_init)
- { .dev_name = NULL,
- .gate_addr = NULL });
- if (tap_setup_common(str, "ethertap", &init->dev_name, mac_out,
- &init->gate_addr))
- return 0;
- if (init->dev_name == NULL) {
- printk(KERN_ERR "ethertap_setup : Missing tap device name\n");
- return 0;
- }
-
- return 1;
-}
-
-static struct transport ethertap_transport = {
- .list = LIST_HEAD_INIT(ethertap_transport.list),
- .name = "ethertap",
- .setup = ethertap_setup,
- .user = ðertap_user_info,
- .kern = ðertap_kern_info,
- .private_size = sizeof(struct ethertap_data),
- .setup_size = sizeof(struct ethertap_init),
-};
-
-static int register_ethertap(void)
-{
- register_transport(ðertap_transport);
- return 0;
-}
-
-late_initcall(register_ethertap);
diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c
deleted file mode 100644
index bdf215c0eca7..000000000000
--- a/arch/um/os-Linux/drivers/ethertap_user.c
+++ /dev/null
@@ -1,248 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Copyright (C) 2001 Lennert Buytenhek (buytenh at gnu.org) and
- * James Leu (jleu at mindspring.net).
- * Copyright (C) 2001 by various other people who didn't put their name here.
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include "etap.h"
-#include <os.h>
-#include <net_user.h>
-#include <um_malloc.h>
-
-#define MAX_PACKET ETH_MAX_PACKET
-
-static int etap_user_init(void *data, void *dev)
-{
- struct ethertap_data *pri = data;
-
- pri->dev = dev;
- return 0;
-}
-
-struct addr_change {
- enum { ADD_ADDR, DEL_ADDR } what;
- unsigned char addr[4];
- unsigned char netmask[4];
-};
-
-static void etap_change(int op, unsigned char *addr, unsigned char *netmask,
- int fd)
-{
- struct addr_change change;
- char *output;
- int n;
-
- change.what = op;
- memcpy(change.addr, addr, sizeof(change.addr));
- memcpy(change.netmask, netmask, sizeof(change.netmask));
- CATCH_EINTR(n = write(fd, &change, sizeof(change)));
- if (n != sizeof(change)) {
- printk(UM_KERN_ERR "etap_change - request failed, err = %d\n",
- errno);
- return;
- }
-
- output = uml_kmalloc(UM_KERN_PAGE_SIZE, UM_GFP_KERNEL);
- if (output == NULL)
- printk(UM_KERN_ERR "etap_change : Failed to allocate output "
- "buffer\n");
- read_output(fd, output, UM_KERN_PAGE_SIZE);
- if (output != NULL) {
- printk("%s", output);
- kfree(output);
- }
-}
-
-static void etap_open_addr(unsigned char *addr, unsigned char *netmask,
- void *arg)
-{
- etap_change(ADD_ADDR, addr, netmask, *((int *) arg));
-}
-
-static void etap_close_addr(unsigned char *addr, unsigned char *netmask,
- void *arg)
-{
- etap_change(DEL_ADDR, addr, netmask, *((int *) arg));
-}
-
-struct etap_pre_exec_data {
- int control_remote;
- int control_me;
- int data_me;
-};
-
-static void etap_pre_exec(void *arg)
-{
- struct etap_pre_exec_data *data = arg;
-
- dup2(data->control_remote, 1);
- close(data->data_me);
- close(data->control_me);
-}
-
-static int etap_tramp(char *dev, char *gate, int control_me,
- int control_remote, int data_me, int data_remote)
-{
- struct etap_pre_exec_data pe_data;
- int pid, err, n;
- char version_buf[sizeof("nnnnn\0")];
- char data_fd_buf[sizeof("nnnnnn\0")];
- char gate_buf[sizeof("nnn.nnn.nnn.nnn\0")];
- char *setup_args[] = { "uml_net", version_buf, "ethertap", dev,
- data_fd_buf, gate_buf, NULL };
- char *nosetup_args[] = { "uml_net", version_buf, "ethertap",
- dev, data_fd_buf, NULL };
- char **args, c;
-
- sprintf(data_fd_buf, "%d", data_remote);
- sprintf(version_buf, "%d", UML_NET_VERSION);
- if (gate != NULL) {
- strscpy(gate_buf, gate);
- args = setup_args;
- }
- else args = nosetup_args;
-
- err = 0;
- pe_data.control_remote = control_remote;
- pe_data.control_me = control_me;
- pe_data.data_me = data_me;
- pid = run_helper(etap_pre_exec, &pe_data, args);
-
- if (pid < 0)
- err = pid;
- close(data_remote);
- close(control_remote);
- CATCH_EINTR(n = read(control_me, &c, sizeof(c)));
- if (n != sizeof(c)) {
- err = -errno;
- printk(UM_KERN_ERR "etap_tramp : read of status failed, "
- "err = %d\n", -err);
- return err;
- }
- if (c != 1) {
- printk(UM_KERN_ERR "etap_tramp : uml_net failed\n");
- err = helper_wait(pid);
- }
- return err;
-}
-
-static int etap_open(void *data)
-{
- struct ethertap_data *pri = data;
- char *output;
- int data_fds[2], control_fds[2], err, output_len;
-
- err = tap_open_common(pri->dev, pri->gate_addr);
- if (err)
- return err;
-
- err = socketpair(AF_UNIX, SOCK_DGRAM, 0, data_fds);
- if (err) {
- err = -errno;
- printk(UM_KERN_ERR "etap_open - data socketpair failed - "
- "err = %d\n", errno);
- return err;
- }
-
- err = socketpair(AF_UNIX, SOCK_STREAM, 0, control_fds);
- if (err) {
- err = -errno;
- printk(UM_KERN_ERR "etap_open - control socketpair failed - "
- "err = %d\n", errno);
- goto out_close_data;
- }
-
- err = etap_tramp(pri->dev_name, pri->gate_addr, control_fds[0],
- control_fds[1], data_fds[0], data_fds[1]);
- output_len = UM_KERN_PAGE_SIZE;
- output = uml_kmalloc(output_len, UM_GFP_KERNEL);
- read_output(control_fds[0], output, output_len);
-
- if (output == NULL)
- printk(UM_KERN_ERR "etap_open : failed to allocate output "
- "buffer\n");
- else {
- printk("%s", output);
- kfree(output);
- }
-
- if (err < 0) {
- printk(UM_KERN_ERR "etap_tramp failed - err = %d\n", -err);
- goto out_close_control;
- }
-
- pri->data_fd = data_fds[0];
- pri->control_fd = control_fds[0];
- iter_addresses(pri->dev, etap_open_addr, &pri->control_fd);
- return data_fds[0];
-
-out_close_control:
- close(control_fds[0]);
- close(control_fds[1]);
-out_close_data:
- close(data_fds[0]);
- close(data_fds[1]);
- return err;
-}
-
-static void etap_close(int fd, void *data)
-{
- struct ethertap_data *pri = data;
-
- iter_addresses(pri->dev, etap_close_addr, &pri->control_fd);
- close(fd);
-
- if (shutdown(pri->data_fd, SHUT_RDWR) < 0)
- printk(UM_KERN_ERR "etap_close - shutdown data socket failed, "
- "errno = %d\n", errno);
-
- if (shutdown(pri->control_fd, SHUT_RDWR) < 0)
- printk(UM_KERN_ERR "etap_close - shutdown control socket "
- "failed, errno = %d\n", errno);
-
- close(pri->data_fd);
- pri->data_fd = -1;
- close(pri->control_fd);
- pri->control_fd = -1;
-}
-
-static void etap_add_addr(unsigned char *addr, unsigned char *netmask,
- void *data)
-{
- struct ethertap_data *pri = data;
-
- tap_check_ips(pri->gate_addr, addr);
- if (pri->control_fd == -1)
- return;
- etap_open_addr(addr, netmask, &pri->control_fd);
-}
-
-static void etap_del_addr(unsigned char *addr, unsigned char *netmask,
- void *data)
-{
- struct ethertap_data *pri = data;
-
- if (pri->control_fd == -1)
- return;
-
- etap_close_addr(addr, netmask, &pri->control_fd);
-}
-
-const struct net_user_info ethertap_user_info = {
- .init = etap_user_init,
- .open = etap_open,
- .close = etap_close,
- .remove = NULL,
- .add_address = etap_add_addr,
- .delete_address = etap_del_addr,
- .mtu = ETH_MAX_PACKET,
- .max_packet = ETH_MAX_PACKET + ETH_HEADER_ETHERTAP,
-};
diff --git a/arch/um/os-Linux/drivers/tuntap.h b/arch/um/os-Linux/drivers/tuntap.h
deleted file mode 100644
index e364e42abfc5..000000000000
--- a/arch/um/os-Linux/drivers/tuntap.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#ifndef __UM_TUNTAP_H
-#define __UM_TUNTAP_H
-
-#include <net_user.h>
-
-struct tuntap_data {
- char *dev_name;
- int fixed_config;
- char *gate_addr;
- int fd;
- void *dev;
-};
-
-extern const struct net_user_info tuntap_user_info;
-
-#endif
diff --git a/arch/um/os-Linux/drivers/tuntap_kern.c b/arch/um/os-Linux/drivers/tuntap_kern.c
deleted file mode 100644
index ff022d9cf0dd..000000000000
--- a/arch/um/os-Linux/drivers/tuntap_kern.c
+++ /dev/null
@@ -1,86 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <linux/netdevice.h>
-#include <linux/init.h>
-#include <linux/skbuff.h>
-#include <asm/errno.h>
-#include <net_kern.h>
-#include "tuntap.h"
-
-struct tuntap_init {
- char *dev_name;
- char *gate_addr;
-};
-
-static void tuntap_init(struct net_device *dev, void *data)
-{
- struct uml_net_private *pri;
- struct tuntap_data *tpri;
- struct tuntap_init *init = data;
-
- pri = netdev_priv(dev);
- tpri = (struct tuntap_data *) pri->user;
- tpri->dev_name = init->dev_name;
- tpri->fixed_config = (init->dev_name != NULL);
- tpri->gate_addr = init->gate_addr;
- tpri->fd = -1;
- tpri->dev = dev;
-
- printk(KERN_INFO "TUN/TAP backend - ");
- if (tpri->gate_addr != NULL)
- printk(KERN_CONT "IP = %s", tpri->gate_addr);
- printk(KERN_CONT "\n");
-}
-
-static int tuntap_read(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return net_read(fd, skb_mac_header(skb),
- skb->dev->mtu + ETH_HEADER_OTHER);
-}
-
-static int tuntap_write(int fd, struct sk_buff *skb, struct uml_net_private *lp)
-{
- return net_write(fd, skb->data, skb->len);
-}
-
-const struct net_kern_info tuntap_kern_info = {
- .init = tuntap_init,
- .protocol = eth_protocol,
- .read = tuntap_read,
- .write = tuntap_write,
-};
-
-static int tuntap_setup(char *str, char **mac_out, void *data)
-{
- struct tuntap_init *init = data;
-
- *init = ((struct tuntap_init)
- { .dev_name = NULL,
- .gate_addr = NULL });
- if (tap_setup_common(str, "tuntap", &init->dev_name, mac_out,
- &init->gate_addr))
- return 0;
-
- return 1;
-}
-
-static struct transport tuntap_transport = {
- .list = LIST_HEAD_INIT(tuntap_transport.list),
- .name = "tuntap",
- .setup = tuntap_setup,
- .user = &tuntap_user_info,
- .kern = &tuntap_kern_info,
- .private_size = sizeof(struct tuntap_data),
- .setup_size = sizeof(struct tuntap_init),
-};
-
-static int register_tuntap(void)
-{
- register_transport(&tuntap_transport);
- return 0;
-}
-
-late_initcall(register_tuntap);
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
deleted file mode 100644
index 91f0e27ca3a6..000000000000
--- a/arch/um/os-Linux/drivers/tuntap_user.c
+++ /dev/null
@@ -1,215 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <errno.h>
-#include <string.h>
-#include <linux/if_tun.h>
-#include <net/if.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/wait.h>
-#include <sys/uio.h>
-#include <kern_util.h>
-#include <os.h>
-#include "tuntap.h"
-
-static int tuntap_user_init(void *data, void *dev)
-{
- struct tuntap_data *pri = data;
-
- pri->dev = dev;
- return 0;
-}
-
-static void tuntap_add_addr(unsigned char *addr, unsigned char *netmask,
- void *data)
-{
- struct tuntap_data *pri = data;
-
- tap_check_ips(pri->gate_addr, addr);
- if ((pri->fd == -1) || pri->fixed_config)
- return;
- open_addr(addr, netmask, pri->dev_name);
-}
-
-static void tuntap_del_addr(unsigned char *addr, unsigned char *netmask,
- void *data)
-{
- struct tuntap_data *pri = data;
-
- if ((pri->fd == -1) || pri->fixed_config)
- return;
- close_addr(addr, netmask, pri->dev_name);
-}
-
-struct tuntap_pre_exec_data {
- int stdout_fd;
- int close_me;
-};
-
-static void tuntap_pre_exec(void *arg)
-{
- struct tuntap_pre_exec_data *data = arg;
-
- dup2(data->stdout_fd, 1);
- close(data->close_me);
-}
-
-static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
- char *buffer, int buffer_len, int *used_out)
-{
- struct tuntap_pre_exec_data data;
- char version_buf[sizeof("nnnnn\0")];
- char *argv[] = { "uml_net", version_buf, "tuntap", "up", gate,
- NULL };
- char buf[CMSG_SPACE(sizeof(*fd_out))];
- struct msghdr msg;
- struct cmsghdr *cmsg;
- struct iovec iov;
- int pid, n, err;
-
- sprintf(version_buf, "%d", UML_NET_VERSION);
-
- data.stdout_fd = remote;
- data.close_me = me;
-
- pid = run_helper(tuntap_pre_exec, &data, argv);
-
- if (pid < 0)
- return pid;
-
- close(remote);
-
- msg.msg_name = NULL;
- msg.msg_namelen = 0;
- if (buffer != NULL) {
- iov = ((struct iovec) { buffer, buffer_len });
- msg.msg_iov = &iov;
- msg.msg_iovlen = 1;
- }
- else {
- msg.msg_iov = NULL;
- msg.msg_iovlen = 0;
- }
- msg.msg_control = buf;
- msg.msg_controllen = sizeof(buf);
- msg.msg_flags = 0;
- n = recvmsg(me, &msg, 0);
- *used_out = n;
- if (n < 0) {
- err = -errno;
- printk(UM_KERN_ERR "tuntap_open_tramp : recvmsg failed - "
- "errno = %d\n", errno);
- return err;
- }
- helper_wait(pid);
-
- cmsg = CMSG_FIRSTHDR(&msg);
- if (cmsg == NULL) {
- printk(UM_KERN_ERR "tuntap_open_tramp : didn't receive a "
- "message\n");
- return -EINVAL;
- }
- if ((cmsg->cmsg_level != SOL_SOCKET) ||
- (cmsg->cmsg_type != SCM_RIGHTS)) {
- printk(UM_KERN_ERR "tuntap_open_tramp : didn't receive a "
- "descriptor\n");
- return -EINVAL;
- }
- *fd_out = ((int *) CMSG_DATA(cmsg))[0];
- os_set_exec_close(*fd_out);
- return 0;
-}
-
-static int tuntap_open(void *data)
-{
- struct ifreq ifr;
- struct tuntap_data *pri = data;
- char *output, *buffer;
- int err, fds[2], len, used;
-
- err = tap_open_common(pri->dev, pri->gate_addr);
- if (err < 0)
- return err;
-
- if (pri->fixed_config) {
- pri->fd = os_open_file("/dev/net/tun",
- of_cloexec(of_rdwr(OPENFLAGS())), 0);
- if (pri->fd < 0) {
- printk(UM_KERN_ERR "Failed to open /dev/net/tun, "
- "err = %d\n", -pri->fd);
- return pri->fd;
- }
- memset(&ifr, 0, sizeof(ifr));
- ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
- strscpy(ifr.ifr_name, pri->dev_name);
- if (ioctl(pri->fd, TUNSETIFF, &ifr) < 0) {
- err = -errno;
- printk(UM_KERN_ERR "TUNSETIFF failed, errno = %d\n",
- errno);
- close(pri->fd);
- return err;
- }
- }
- else {
- err = socketpair(AF_UNIX, SOCK_DGRAM, 0, fds);
- if (err) {
- err = -errno;
- printk(UM_KERN_ERR "tuntap_open : socketpair failed - "
- "errno = %d\n", errno);
- return err;
- }
-
- buffer = get_output_buffer(&len);
- if (buffer != NULL)
- len--;
- used = 0;
-
- err = tuntap_open_tramp(pri->gate_addr, &pri->fd, fds[0],
- fds[1], buffer, len, &used);
-
- output = buffer;
- if (err < 0) {
- printk("%s", output);
- free_output_buffer(buffer);
- printk(UM_KERN_ERR "tuntap_open_tramp failed - "
- "err = %d\n", -err);
- return err;
- }
-
- pri->dev_name = uml_strdup(buffer);
- output += IFNAMSIZ;
- printk("%s", output);
- free_output_buffer(buffer);
-
- close(fds[0]);
- iter_addresses(pri->dev, open_addr, pri->dev_name);
- }
-
- return pri->fd;
-}
-
-static void tuntap_close(int fd, void *data)
-{
- struct tuntap_data *pri = data;
-
- if (!pri->fixed_config)
- iter_addresses(pri->dev, close_addr, pri->dev_name);
- close(fd);
- pri->fd = -1;
-}
-
-const struct net_user_info tuntap_user_info = {
- .init = tuntap_user_init,
- .open = tuntap_open,
- .close = tuntap_close,
- .remove = NULL,
- .add_address = tuntap_add_addr,
- .delete_address = tuntap_del_addr,
- .mtu = ETH_MAX_PACKET,
- .max_packet = ETH_MAX_PACKET + ETH_HEADER_OTHER,
-};
diff --git a/arch/um/os-Linux/file.c b/arch/um/os-Linux/file.c
index a0d01c68ce3e..617886d1fb1e 100644
--- a/arch/um/os-Linux/file.c
+++ b/arch/um/os-Linux/file.c
@@ -106,21 +106,6 @@ int os_get_ifname(int fd, char* namebuf)
return 0;
}
-int os_set_slip(int fd)
-{
- int disc, sencap;
-
- disc = N_SLIP;
- if (ioctl(fd, TIOCSETD, &disc) < 0)
- return -errno;
-
- sencap = 0;
- if (ioctl(fd, SIOCSIFENCAP, &sencap) < 0)
- return -errno;
-
- return 0;
-}
-
int os_mode_fd(int fd, int mode)
{
int err;
--
2.34.1
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