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-rw-r--r--arch/um/drivers/vector_user.h109
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/um/drivers/vector_user.h b/arch/um/drivers/vector_user.h
new file mode 100644
index 000000000..3a73d17a0
--- /dev/null
+++ b/arch/um/drivers/vector_user.h
@@ -0,0 +1,109 @@
+/* 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(const 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