1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
6 #ifndef __UM_VECTOR_USER_H
7 #define __UM_VECTOR_USER_H
11 #define TOKEN_IFNAME "ifname"
13 #define TRANS_RAW "raw"
14 #define TRANS_RAW_LEN strlen(TRANS_RAW)
16 #define TRANS_TAP "tap"
17 #define TRANS_TAP_LEN strlen(TRANS_TAP)
19 #define TRANS_GRE "gre"
20 #define TRANS_GRE_LEN strlen(TRANS_RAW)
22 #define TRANS_L2TPV3 "l2tpv3"
23 #define TRANS_L2TPV3_LEN strlen(TRANS_L2TPV3)
25 #define TRANS_HYBRID "hybrid"
26 #define TRANS_HYBRID_LEN strlen(TRANS_HYBRID)
28 #define TRANS_BESS "bess"
29 #define TRANS_BESS_LEN strlen(TRANS_BESS)
32 #define IPPROTO_GRE 0x2F
35 #define GRE_MODE_CHECKSUM cpu_to_be16(8 << 12) /* checksum */
36 #define GRE_MODE_RESERVED cpu_to_be16(4 << 12) /* unused */
37 #define GRE_MODE_KEY cpu_to_be16(2 << 12) /* KEY present */
38 #define GRE_MODE_SEQUENCE cpu_to_be16(1 << 12) /* sequence */
40 #define GRE_IRB cpu_to_be16(0x6558)
42 #define L2TPV3_DATA_PACKET 0x30000
44 /* IANA-assigned IP protocol ID for L2TPv3 */
47 #define IPPROTO_L2TP 0x73
52 char *tokens[MAXVARGS];
53 char *values[MAXVARGS];
56 /* Separating read and write FDs allows us to have different
57 * rx and tx method. Example - read tap via raw socket using
58 * recvmmsg, write using legacy tap write calls
69 #define VECTOR_WRITE (1 < 1)
70 #define VECTOR_HEADERS (1 < 2)
72 extern struct arglist *uml_parse_vector_ifspec(char *arg);
74 extern struct vector_fds *uml_vector_user_open(
76 struct arglist *parsed
79 extern char *uml_vector_fetch_arg(
80 struct arglist *ifspec,
84 extern int uml_vector_recvmsg(int fd, void *hdr, int flags);
85 extern int uml_vector_sendmsg(int fd, void *hdr, int flags);
86 extern int uml_vector_writev(int fd, void *hdr, int iovcount);
87 extern int uml_vector_sendmmsg(
92 extern int uml_vector_recvmmsg(
98 extern void *uml_vector_default_bpf(int fd, void *mac);
99 extern int uml_vector_attach_bpf(int fd, void *bpf, int bpf_len);
100 extern bool uml_raw_enable_qdisc_bypass(int fd);
101 extern bool uml_raw_enable_vnet_headers(int fd);
102 extern bool uml_tap_enable_vnet_headers(int fd);