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