projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| dbddf429 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 49da7e64 AI |
2 | /* |
| 3 | * Copyright (C) 2002 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) | |
| 49da7e64 AI |
4 | */ |
| 5 | ||
| 6 | #ifndef __UM_VECTOR_USER_H | |
| 7 | #define __UM_VECTOR_USER_H | |
| 8 | ||
| 9 | #define MAXVARGS 20 | |
| 10 | ||
| 11 | #define TOKEN_IFNAME "ifname" | |
| 12 | ||
| 13 | #define TRANS_RAW "raw" | |
| 14 | #define TRANS_RAW_LEN strlen(TRANS_RAW) | |
| 15 | ||
| 16 | #define TRANS_TAP "tap" | |
| 17 | #define TRANS_TAP_LEN strlen(TRANS_TAP) | |
| 18 | ||
| 49da7e64 AI |
19 | #define TRANS_GRE "gre" |
| 20 | #define TRANS_GRE_LEN strlen(TRANS_RAW) | |
| 21 | ||
| 22 | #define TRANS_L2TPV3 "l2tpv3" | |
| 23 | #define TRANS_L2TPV3_LEN strlen(TRANS_L2TPV3) | |
| 24 | ||
| b3b8ca2a AI |
25 | #define TRANS_HYBRID "hybrid" |
| 26 | #define TRANS_HYBRID_LEN strlen(TRANS_HYBRID) | |
| 27 | ||
| 77f1073c AI |
28 | #define TRANS_BESS "bess" |
| 29 | #define TRANS_BESS_LEN strlen(TRANS_BESS) | |
| 30 | ||
| 49da7e64 AI |
31 | #ifndef IPPROTO_GRE |
| 32 | #define IPPROTO_GRE 0x2F | |
| 33 | #endif | |
| 34 | ||
| 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 */ | |
| 39 | ||
| 40 | #define GRE_IRB cpu_to_be16(0x6558) | |
| 41 | ||
| 42 | #define L2TPV3_DATA_PACKET 0x30000 | |
| 43 | ||
| 44 | /* IANA-assigned IP protocol ID for L2TPv3 */ | |
| 45 | ||
| 46 | #ifndef IPPROTO_L2TP | |
| 47 | #define IPPROTO_L2TP 0x73 | |
| 48 | #endif | |
| 49 | ||
| 50 | struct arglist { | |
| 51 | int numargs; | |
| 52 | char *tokens[MAXVARGS]; | |
| 53 | char *values[MAXVARGS]; | |
| 54 | }; | |
| 55 | ||
| 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 | |
| 59 | */ | |
| 60 | ||
| 61 | struct vector_fds { | |
| 62 | int rx_fd; | |
| 63 | int tx_fd; | |
| 64 | void *remote_addr; | |
| 65 | int remote_addr_size; | |
| 66 | }; | |
| 67 | ||
| 68 | #define VECTOR_READ 1 | |
| 69 | #define VECTOR_WRITE (1 < 1) | |
| 70 | #define VECTOR_HEADERS (1 < 2) | |
| 71 | ||
| 72 | extern struct arglist *uml_parse_vector_ifspec(char *arg); | |
| 73 | ||
| 74 | extern struct vector_fds *uml_vector_user_open( | |
| 75 | int unit, | |
| 76 | struct arglist *parsed | |
| 77 | ); | |
| 78 | ||
| 79 | extern char *uml_vector_fetch_arg( | |
| 80 | struct arglist *ifspec, | |
| 81 | char *token | |
| 82 | ); | |
| 83 | ||
| 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( | |
| 88 | int fd, void *msgvec, | |
| 89 | unsigned int vlen, | |
| 90 | unsigned int flags | |
| 91 | ); | |
| 92 | extern int uml_vector_recvmmsg( | |
| 93 | int fd, | |
| 94 | void *msgvec, | |
| 95 | unsigned int vlen, | |
| 96 | unsigned int flags | |
| 97 | ); | |
| 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); | |
| e40238de | 100 | extern bool uml_raw_enable_qdisc_bypass(int fd); |
| 49da7e64 AI |
101 | extern bool uml_raw_enable_vnet_headers(int fd); |
| 102 | extern bool uml_tap_enable_vnet_headers(int fd); | |
| 103 | ||
| 104 | ||
| 105 | #endif |