Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/um/os-Linux/drivers/Makefile b/arch/um/os-Linux/drivers/Makefile
new file mode 100644
index 0000000..6c546dc
--- /dev/null
+++ b/arch/um/os-Linux/drivers/Makefile
@@ -0,0 +1,13 @@
+#
+# Copyright (C) 2000, 2002 Jeff Dike (jdike@karaya.com)
+# Licensed under the GPL
+#
+
+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 arch/um/scripts/Makefile.rules
diff --git a/arch/um/os-Linux/drivers/etap.h b/arch/um/os-Linux/drivers/etap.h
new file mode 100644
index 0000000..b84f6c4
--- /dev/null
+++ b/arch/um/os-Linux/drivers/etap.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include "net_user.h"
+
+struct ethertap_data {
+ char *dev_name;
+ char *gate_addr;
+ int data_fd;
+ int control_fd;
+ void *dev;
+};
+
+extern struct net_user_info ethertap_user_info;
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/arch/um/os-Linux/drivers/ethertap_kern.c b/arch/um/os-Linux/drivers/ethertap_kern.c
new file mode 100644
index 0000000..6ae4b19
--- /dev/null
+++ b/arch/um/os-Linux/drivers/ethertap_kern.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
+ * James Leu (jleu@mindspring.net).
+ * Copyright (C) 2001 by various other people who didn't put their name here.
+ * Licensed under the GPL.
+ */
+
+#include "linux/init.h"
+#include "linux/netdevice.h"
+#include "linux/etherdevice.h"
+#include "net_kern.h"
+#include "net_user.h"
+#include "etap.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 = dev->priv;
+ 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("ethertap backend - %s", epri->dev_name);
+ if (epri->gate_addr != NULL)
+ printk(", IP = %s", epri->gate_addr);
+ printk("\n");
+}
+
+static int etap_read(int fd, struct sk_buff **skb, struct uml_net_private *lp)
+{
+ int len;
+
+ *skb = ether_adjust_skb(*skb, ETH_HEADER_ETHERTAP);
+ if(*skb == NULL) return(-ENOMEM);
+ len = net_recvfrom(fd, (*skb)->mac.raw,
+ (*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)
+{
+ if(skb_headroom(*skb) < 2){
+ struct sk_buff *skb2;
+
+ skb2 = skb_realloc_headroom(*skb, 2);
+ dev_kfree_skb(*skb);
+ if (skb2 == NULL) return(-ENOMEM);
+ *skb = skb2;
+ }
+ skb_push(*skb, 2);
+ return(net_send(fd, (*skb)->data, (*skb)->len));
+}
+
+struct net_kern_info ethertap_kern_info = {
+ .init = etap_init,
+ .protocol = eth_protocol,
+ .read = etap_read,
+ .write = etap_write,
+};
+
+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("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),
+};
+
+static int register_ethertap(void)
+{
+ register_transport(ðertap_transport);
+ return(1);
+}
+
+__initcall(register_ethertap);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/arch/um/os-Linux/drivers/ethertap_user.c
new file mode 100644
index 0000000..cd4d654
--- /dev/null
+++ b/arch/um/os-Linux/drivers/ethertap_user.c
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2001 Lennert Buytenhek (buytenh@gnu.org) and
+ * James Leu (jleu@mindspring.net).
+ * Copyright (C) 2001 by various other people who didn't put their name here.
+ * Licensed under the GPL.
+ */
+
+#include <stdio.h>
+#include <unistd.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <sys/errno.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+#include <sys/un.h>
+#include <net/if.h>
+#include "user.h"
+#include "kern_util.h"
+#include "user_util.h"
+#include "net_user.h"
+#include "etap.h"
+#include "helper.h"
+#include "os.h"
+
+#define MAX_PACKET ETH_MAX_PACKET
+
+void etap_user_init(void *data, void *dev)
+{
+ struct ethertap_data *pri = data;
+
+ pri->dev = dev;
+}
+
+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;
+ void *output;
+ int n;
+
+ change.what = op;
+ memcpy(change.addr, addr, sizeof(change.addr));
+ memcpy(change.netmask, netmask, sizeof(change.netmask));
+ n = os_write_file(fd, &change, sizeof(change));
+ if(n != sizeof(change))
+ printk("etap_change - request failed, err = %d\n", -n);
+ output = um_kmalloc(page_size());
+ if(output == NULL)
+ printk("etap_change : Failed to allocate output buffer\n");
+ read_output(fd, output, 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);
+ os_close_file(data->data_me);
+ os_close_file(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, status, 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){
+ strcpy(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, NULL);
+
+ if(pid < 0) err = pid;
+ os_close_file(data_remote);
+ os_close_file(control_remote);
+ n = os_read_file(control_me, &c, sizeof(c));
+ if(n != sizeof(c)){
+ printk("etap_tramp : read of status failed, err = %d\n", -n);
+ return(-EINVAL);
+ }
+ if(c != 1){
+ printk("etap_tramp : uml_net failed\n");
+ err = -EINVAL;
+ CATCH_EINTR(n = waitpid(pid, &status, 0));
+ if(n < 0)
+ err = -errno;
+ else if(!WIFEXITED(status) || (WEXITSTATUS(status) != 1))
+ printk("uml_net didn't exit with status 1\n");
+ }
+ 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 = os_pipe(data_fds, 0, 0);
+ if(err < 0){
+ printk("data os_pipe failed - err = %d\n", -err);
+ return(err);
+ }
+
+ err = os_pipe(control_fds, 1, 0);
+ if(err < 0){
+ printk("control os_pipe failed - err = %d\n", -err);
+ return(err);
+ }
+
+ err = etap_tramp(pri->dev_name, pri->gate_addr, control_fds[0],
+ control_fds[1], data_fds[0], data_fds[1]);
+ output_len = page_size();
+ output = um_kmalloc(output_len);
+ read_output(control_fds[0], output, output_len);
+
+ if(output == NULL)
+ printk("etap_open : failed to allocate output buffer\n");
+ else {
+ printk("%s", output);
+ kfree(output);
+ }
+
+ if(err < 0){
+ printk("etap_tramp failed - err = %d\n", -err);
+ return(err);
+ }
+
+ 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]);
+}
+
+static void etap_close(int fd, void *data)
+{
+ struct ethertap_data *pri = data;
+
+ iter_addresses(pri->dev, etap_close_addr, &pri->control_fd);
+ os_close_file(fd);
+ os_shutdown_socket(pri->data_fd, 1, 1);
+ os_close_file(pri->data_fd);
+ pri->data_fd = -1;
+ os_close_file(pri->control_fd);
+ pri->control_fd = -1;
+}
+
+static int etap_set_mtu(int mtu, void *data)
+{
+ return(mtu);
+}
+
+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);
+}
+
+struct net_user_info ethertap_user_info = {
+ .init = etap_user_init,
+ .open = etap_open,
+ .close = etap_close,
+ .remove = NULL,
+ .set_mtu = etap_set_mtu,
+ .add_address = etap_add_addr,
+ .delete_address = etap_del_addr,
+ .max_packet = MAX_PACKET - ETH_HEADER_ETHERTAP
+};
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/arch/um/os-Linux/drivers/tuntap.h b/arch/um/os-Linux/drivers/tuntap.h
new file mode 100644
index 0000000..25d4a28
--- /dev/null
+++ b/arch/um/os-Linux/drivers/tuntap.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#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 struct net_user_info tuntap_user_info;
+
+#endif
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/arch/um/os-Linux/drivers/tuntap_kern.c b/arch/um/os-Linux/drivers/tuntap_kern.c
new file mode 100644
index 0000000..4202b9e
--- /dev/null
+++ b/arch/um/os-Linux/drivers/tuntap_kern.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2001 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include "linux/stddef.h"
+#include "linux/netdevice.h"
+#include "linux/etherdevice.h"
+#include "linux/skbuff.h"
+#include "linux/init.h"
+#include "asm/errno.h"
+#include "net_kern.h"
+#include "net_user.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 = dev->priv;
+ 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("TUN/TAP backend - ");
+ if (tpri->gate_addr != NULL)
+ printk("IP = %s", tpri->gate_addr);
+ printk("\n");
+}
+
+static int tuntap_read(int fd, struct sk_buff **skb,
+ struct uml_net_private *lp)
+{
+ *skb = ether_adjust_skb(*skb, ETH_HEADER_OTHER);
+ if(*skb == NULL) return(-ENOMEM);
+ return(net_read(fd, (*skb)->mac.raw,
+ (*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));
+}
+
+struct net_kern_info tuntap_kern_info = {
+ .init = tuntap_init,
+ .protocol = eth_protocol,
+ .read = tuntap_read,
+ .write = tuntap_write,
+};
+
+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(1);
+}
+
+__initcall(register_tuntap);
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
new file mode 100644
index 0000000..4b83c6c
--- /dev/null
+++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -0,0 +1,225 @@
+/*
+ * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
+ * Licensed under the GPL
+ */
+
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/uio.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <linux/if_tun.h>
+#include "net_user.h"
+#include "tuntap.h"
+#include "kern_util.h"
+#include "user_util.h"
+#include "user.h"
+#include "helper.h"
+#include "os.h"
+
+#define MAX_PACKET ETH_MAX_PACKET
+
+void tuntap_user_init(void *data, void *dev)
+{
+ struct tuntap_data *pri = data;
+
+ pri->dev = dev;
+}
+
+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;
+ int close_me;
+};
+
+static void tuntap_pre_exec(void *arg)
+{
+ struct tuntap_pre_exec_data *data = arg;
+
+ dup2(data->stdout, 1);
+ os_close_file(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;
+
+ sprintf(version_buf, "%d", UML_NET_VERSION);
+
+ data.stdout = remote;
+ data.close_me = me;
+
+ pid = run_helper(tuntap_pre_exec, &data, argv, NULL);
+
+ if(pid < 0) return(-pid);
+
+ os_close_file(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){
+ printk("tuntap_open_tramp : recvmsg failed - errno = %d\n",
+ errno);
+ return(-errno);
+ }
+ CATCH_EINTR(waitpid(pid, NULL, 0));
+
+ cmsg = CMSG_FIRSTHDR(&msg);
+ if(cmsg == NULL){
+ printk("tuntap_open_tramp : didn't receive a message\n");
+ return(-EINVAL);
+ }
+ if((cmsg->cmsg_level != SOL_SOCKET) ||
+ (cmsg->cmsg_type != SCM_RIGHTS)){
+ printk("tuntap_open_tramp : didn't receive a descriptor\n");
+ return(-EINVAL);
+ }
+ *fd_out = ((int *) CMSG_DATA(cmsg))[0];
+ 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_rdwr(OPENFLAGS()), 0);
+ if(pri->fd < 0){
+ printk("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;
+ strlcpy(ifr.ifr_name, pri->dev_name, sizeof(ifr.ifr_name));
+ if(ioctl(pri->fd, TUNSETIFF, (void *) &ifr) < 0){
+ printk("TUNSETIFF failed, errno = %d\n", errno);
+ os_close_file(pri->fd);
+ return(-errno);
+ }
+ }
+ else {
+ err = os_pipe(fds, 0, 0);
+ if(err < 0){
+ printk("tuntap_open : os_pipe failed - err = %d\n",
+ -err);
+ 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("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);
+
+ os_close_file(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);
+ os_close_file(fd);
+ pri->fd = -1;
+}
+
+static int tuntap_set_mtu(int mtu, void *data)
+{
+ return(mtu);
+}
+
+struct net_user_info tuntap_user_info = {
+ .init = tuntap_user_init,
+ .open = tuntap_open,
+ .close = tuntap_close,
+ .remove = NULL,
+ .set_mtu = tuntap_set_mtu,
+ .add_address = tuntap_add_addr,
+ .delete_address = tuntap_del_addr,
+ .max_packet = MAX_PACKET
+};
+
+/*
+ * Overrides for Emacs so that we follow Linus's tabbing style.
+ * Emacs will notice this stuff at the end of the file and automatically
+ * adjust the settings for this buffer only. This must remain at the end
+ * of the file.
+ * ---------------------------------------------------------------------------
+ * Local variables:
+ * c-file-style: "linux"
+ * End:
+ */