src/vnet/unix/pcap2cinit.c

/*-
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 *
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 *   modification, are permitted provided that the following conditions
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 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in
 *       the documentation and/or other materials provided with the
 *       distribution.
 *     * Neither the name of Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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 */

#ifndef _VHOST_NET_USER_H
#define _VHOST_NET_USER_H

#include <stdint.h>
#include <linux/vhost.h>

#include "rte_virtio_net.h"

/* refer to hw/virtio/vhost-user.c */

#define VHOST_MEMORY_MAX_NREGIONS 8

#define VHOST_USER_PROTOCOL_F_MQ	0
#define VHOST_USER_PROTOCOL_F_LOG_SHMFD	1
#define VHOST_USER_PROTOCOL_F_RARP	2

#define VHOST_USER_PROTOCOL_FEATURES	((1ULL << VHOST_USER_PROTOCOL_F_MQ) | \
					 (1ULL << VHOST_USER_PROTOCOL_F_LOG_SHMFD) |\
					 (1ULL << VHOST_USER_PROTOCOL_F_RARP))

typedef enum VhostUserRequest {
	VHOST_USER_NONE = 0,
	VHOST_USER_GET_FEATURES = 1,
	VHOST_USER_SET_FEATURES = 2,
	VHOST_USER_SET_OWNER = 3,
	VHOST_USER_RESET_OWNER = 4,
	VHOST_USER_SET_MEM_TABLE = 5,
	VHOST_USER_SET_LOG_BASE = 6,
	VHOST_USER_SET_LOG_FD = 7,
	VHOST_USER_SET_VRING_NUM = 8,
	VHOST_USER_SET_VRING_ADDR = 9,
	VHOST_USER_SET_VRING_BASE = 10,
	VHOST_USER_GET_VRING_BASE = 11,
	VHOST_USER_SET_VRING_KICK = 12,
	VHOST_USER_SET_VRING_CALL = 13,
	VHOST_USER_SET_VRING_ERR = 14,
	VHOST_USER_GET_PROTOCOL_FEATURES = 15,
	VHOST_USER_SET_PROTOCOL_FEATURES = 16,
	VHOST_USER_GET_QUEUE_NUM = 17,
	VHOST_USER_SET_VRING_ENABLE = 18,
	VHOST_USER_SEND_RARP = 19,
	VHOST_USER_MAX
} VhostUserRequest;

typedef struct VhostUserMemoryRegion {
	uint64_t guest_phys_addr;
	uint64_t memory_size;
	uint64_t userspace_addr;
	uint64_t mmap_offset;
} VhostUserMemoryRegion;

typedef struct VhostUserMemory {
	uint32_t nregions;
	uint32_t padding;
	VhostUserMemoryRegion regions[VHOST_MEMORY_MAX_NREGIONS];
} VhostUserMemory;

typedef struct VhostUserLog {
	uint64_t mmap_size;
	uint64_t mmap_offset;
} VhostUserLog;

typedef struct VhostUserMsg {
	VhostUserRequest request;

#define VHOST_USER_VERSION_MASK     0x3
#define VHOST_USER_REPLY_MASK       (0x1 << 2)
	uint32_t flags;
	uint32_t size; /* the following payload size */
	union {
#define VHOST_USER_VRING_IDX_MASK   0xff
#define VHOST_USER_VRING_NOFD_MASK  (0x1<<8)
		uint64_t u64;
		struct vhost_vring_state state;
		struct vhost_vring_addr addr;
		VhostUserMemory memory;
		VhostUserLog    log;
	} payload;
	int fds[VHOST_MEMORY_MAX_NREGIONS];
} __attribute((packed)) VhostUserMsg;

#define VHOST_USER_HDR_SIZE offsetof(VhostUserMsg, payload.u64)

/* The version of the protocol we support */
#define VHOST_USER_VERSION    0x1


/* vhost_user.c */
int vhost_user_msg_handler(int vid, int fd);

/* socket.c */
int read_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num);
int send_fd_message(int sockfd, char *buf, int buflen, int *fds, int fd_num);

#endif
Age	Commit message (Expand)	Author	Files	Lines
2018-11-17	pcap-based dispatch tracer	Dave Barach	1	-1/+1
2018-02-23	Convert a pcap file to a set of C initializers	Dave Barach	1	-0/+139