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Index of /anon_sym/anon/sys/dev/char/4:54
Index of /anon_sym/anon/sys/dev/char/4:54
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o;_I|+ 3 /* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Universal TUN/TAP device driver.
* Copyright (C) 1999-2000 Maxim Krasnyansky
*/
#ifndef __IF_TUN_H
#define __IF_TUN_H
#include
#include
#define TUN_XDP_FLAG 0x1UL
#define TUN_MSG_UBUF 1
#define TUN_MSG_PTR 2
struct tun_msg_ctl {
unsigned short type;
unsigned short num;
void *ptr;
};
struct tun_xdp_hdr {
int buflen;
struct virtio_net_hdr gso;
};
#if defined(CONFIG_TUN) || defined(CONFIG_TUN_MODULE)
struct socket *tun_get_socket(struct file *);
struct ptr_ring *tun_get_tx_ring(struct file *file);
static inline bool tun_is_xdp_frame(void *ptr)
{
return (unsigned long)ptr & TUN_XDP_FLAG;
}
static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
return (void *)((unsigned long)xdp | TUN_XDP_FLAG);
}
static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
return (void *)((unsigned long)ptr & ~TUN_XDP_FLAG);
}
void tun_ptr_free(void *ptr);
#else
#include
#include
struct file;
struct socket;
static inline struct socket *tun_get_socket(struct file *f)
{
return ERR_PTR(-EINVAL);
}
static inline struct ptr_ring *tun_get_tx_ring(struct file *f)
{
return ERR_PTR(-EINVAL);
}
static inline bool tun_is_xdp_frame(void *ptr)
{
return false;
}
static inline void *tun_xdp_to_ptr(struct xdp_frame *xdp)
{
return NULL;
}
static inline struct xdp_frame *tun_ptr_to_xdp(void *ptr)
{
return NULL;
}
static inline void tun_ptr_free(void *ptr)
{
}
#endif /* CONFIG_TUN */
#endif /* __IF_TUN_H */
D_ ,
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2018 Masahiro Yamada
#include
#include
#include
#include
#include
#include
#include "list.h"
#include
#include "lkc.h"
#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
static char *expand_string_with_args(const char *in, int argc, char *argv[]);
static char *expand_string(const char *in);
static void __attribute__((noreturn)) pperror(const char *format, ...)
{
va_list ap;
fprintf(stderr, "%s:%d: ", current_file->name, yylineno);
va_start(ap, format);
vfprintf(stderr, format, ap);
va_end(ap);
fprintf(stderr, "\n");
exit(1);
}
/*
* Environment variables
*/
static LIST_HEAD(env_list);
struct env {
char *name;
char *value;
struct list_head node;
};
static void env_add(const char *name, const char *value)
{
struct env *e;
e = xmalloc(sizeof(*e));
e->name = xstrdup(name)