110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
|
|
*/
|
|
|
|
#ifndef __UM_VECTOR_USER_H
|
|
#define __UM_VECTOR_USER_H
|
|
|
|
#define MAXVARGS 20
|
|
|
|
#define TOKEN_IFNAME "ifname"
|
|
|
|
#define TRANS_RAW "raw"
|
|
#define TRANS_RAW_LEN strlen(TRANS_RAW)
|
|
|
|
#define TRANS_TAP "tap"
|
|
#define TRANS_TAP_LEN strlen(TRANS_TAP)
|
|
|
|
#define TRANS_GRE "gre"
|
|
#define TRANS_GRE_LEN strlen(TRANS_GRE)
|
|
|
|
#define TRANS_L2TPV3 "l2tpv3"
|
|
#define TRANS_L2TPV3_LEN strlen(TRANS_L2TPV3)
|
|
|
|
#define TRANS_HYBRID "hybrid"
|
|
#define TRANS_HYBRID_LEN strlen(TRANS_HYBRID)
|
|
|
|
#define TRANS_BESS "bess"
|
|
#define TRANS_BESS_LEN strlen(TRANS_BESS)
|
|
|
|
#define DEFAULT_BPF_LEN 6
|
|
|
|
#ifndef IPPROTO_GRE
|
|
#define IPPROTO_GRE 0x2F
|
|
#endif
|
|
|
|
#define GRE_MODE_CHECKSUM cpu_to_be16(8 << 12) /* checksum */
|
|
#define GRE_MODE_RESERVED cpu_to_be16(4 << 12) /* unused */
|
|
#define GRE_MODE_KEY cpu_to_be16(2 << 12) /* KEY present */
|
|
#define GRE_MODE_SEQUENCE cpu_to_be16(1 << 12) /* sequence */
|
|
|
|
#define GRE_IRB cpu_to_be16(0x6558)
|
|
|
|
#define L2TPV3_DATA_PACKET 0x30000
|
|
|
|
/* IANA-assigned IP protocol ID for L2TPv3 */
|
|
|
|
#ifndef IPPROTO_L2TP
|
|
#define IPPROTO_L2TP 0x73
|
|
#endif
|
|
|
|
struct arglist {
|
|
int numargs;
|
|
char *tokens[MAXVARGS];
|
|
char *values[MAXVARGS];
|
|
};
|
|
|
|
/* Separating read and write FDs allows us to have different
|
|
* rx and tx method. Example - read tap via raw socket using
|
|
* recvmmsg, write using legacy tap write calls
|
|
*/
|
|
|
|
struct vector_fds {
|
|
int rx_fd;
|
|
int tx_fd;
|
|
void *remote_addr;
|
|
int remote_addr_size;
|
|
};
|
|
|
|
#define VECTOR_READ 1
|
|
#define VECTOR_WRITE (1 < 1)
|
|
#define VECTOR_HEADERS (1 < 2)
|
|
|
|
extern struct arglist *uml_parse_vector_ifspec(char *arg);
|
|
|
|
extern struct vector_fds *uml_vector_user_open(
|
|
int unit,
|
|
struct arglist *parsed
|
|
);
|
|
|
|
extern char *uml_vector_fetch_arg(
|
|
struct arglist *ifspec,
|
|
char *token
|
|
);
|
|
|
|
extern int uml_vector_recvmsg(int fd, void *hdr, int flags);
|
|
extern int uml_vector_sendmsg(int fd, void *hdr, int flags);
|
|
extern int uml_vector_writev(int fd, void *hdr, int iovcount);
|
|
extern int uml_vector_sendmmsg(
|
|
int fd, void *msgvec,
|
|
unsigned int vlen,
|
|
unsigned int flags
|
|
);
|
|
extern int uml_vector_recvmmsg(
|
|
int fd,
|
|
void *msgvec,
|
|
unsigned int vlen,
|
|
unsigned int flags
|
|
);
|
|
extern void *uml_vector_default_bpf(void *mac);
|
|
extern void *uml_vector_user_bpf(char *filename);
|
|
extern int uml_vector_attach_bpf(int fd, void *bpf);
|
|
extern int uml_vector_detach_bpf(int fd, void *bpf);
|
|
extern bool uml_raw_enable_qdisc_bypass(int fd);
|
|
extern bool uml_raw_enable_vnet_headers(int fd);
|
|
extern bool uml_tap_enable_vnet_headers(int fd);
|
|
|
|
|
|
#endif
|