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Import QEMU upstream snapshot d2e570c

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Upstream: https://gitlab.com/qemu-project/qemu.git

Upstream-Commit: d2e570cc0f97b936902a5b1b86b73c0f5998b475
This commit is contained in:
Yaya48 committed 2026-08-31 02:15:30 +02:00
commit cf256aa081
11315 files changed
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include/net/announce.h
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/*
* Self-announce facility
* (c) 2017-2019 Red Hat, Inc.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef QEMU_NET_ANNOUNCE_H
#define QEMU_NET_ANNOUNCE_H
#include "qapi/qapi-types-net.h"
#include "qemu/timer.h"
typedef struct AnnounceTimer {
QEMUTimer *tm;
AnnounceParameters params;
QEMUClockType type;
int round;
} AnnounceTimer;
/* Returns: update the timer to the next time point */
int64_t qemu_announce_timer_step(AnnounceTimer *timer);
/*
* Delete the underlying timer and other data
* If 'free_named' true and the timer is a named timer, then remove
* it from the list of named timers and free the AnnounceTimer itself.
*/
void qemu_announce_timer_del(AnnounceTimer *timer, bool free_named);
/*
* Under BQL/main thread
* Reset the timer to the given parameters/type/notifier.
*/
void qemu_announce_timer_reset(AnnounceTimer *timer,
AnnounceParameters *params,
QEMUClockType type,
QEMUTimerCB *cb,
void *opaque);
void qemu_announce_self(AnnounceTimer *timer, AnnounceParameters *params);
#endif
include/net/can_emu.h
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/*
* CAN common CAN bus emulation support
*
* Copyright (c) 2013-2014 Jin Yang
* Copyright (c) 2014-2018 Pavel Pisa
*
* Initial development supported by Google GSoC 2013 from RTEMS project slot
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef NET_CAN_EMU_H
#define NET_CAN_EMU_H
#include "qemu/queue.h"
#include "qom/object.h"
/* NOTE: the following two structures is copied from <linux/can.h>. */
/*
* Controller Area Network Identifier structure
*
* bit 0-28 : CAN identifier (11/29 bit)
* bit 29 : error frame flag (0 = data frame, 1 = error frame)
* bit 30 : remote transmission request flag (1 = rtr frame)
* bit 31 : frame format flag (0 = standard 11 bit, 1 = extended 29 bit)
*/
typedef uint32_t qemu_canid_t;
typedef struct qemu_can_frame {
qemu_canid_t can_id; /* 32 bit CAN_ID + EFF/RTR/ERR flags */
uint8_t can_dlc; /* data length code: 0 .. 8 */
uint8_t flags;
uint8_t data[64] QEMU_ALIGNED(8);
} qemu_can_frame;
/* Keep defines for QEMU separate from Linux ones for now */
#define QEMU_CAN_EFF_FLAG 0x80000000U /* EFF/SFF is set in the MSB */
#define QEMU_CAN_RTR_FLAG 0x40000000U /* remote transmission request */
#define QEMU_CAN_ERR_FLAG 0x20000000U /* error message frame */
#define QEMU_CAN_SFF_MASK 0x000007FFU /* standard frame format (SFF) */
#define QEMU_CAN_EFF_MASK 0x1FFFFFFFU /* extended frame format (EFF) */
#define QEMU_CAN_FRMF_BRS 0x01 /* bit rate switch (2nd bitrate for data) */
#define QEMU_CAN_FRMF_ESI 0x02 /* error state ind. of transmitting node */
#define QEMU_CAN_FRMF_TYPE_FD 0x10 /* internal bit ind. of CAN FD frame */
/**
* struct qemu_can_filter - CAN ID based filter in can_register().
* @can_id: relevant bits of CAN ID which are not masked out.
* @can_mask: CAN mask (see description)
*
* Description:
* A filter matches, when
*
* <received_can_id> & mask == can_id & mask
*
* The filter can be inverted (QEMU_CAN_INV_FILTER bit set in can_id) or it can
* filter for error message frames (QEMU_CAN_ERR_FLAG bit set in mask).
*/
typedef struct qemu_can_filter {
qemu_canid_t can_id;
qemu_canid_t can_mask;
} qemu_can_filter;
/* QEMU_CAN_INV_FILTER can be set in qemu_can_filter.can_id */
#define QEMU_CAN_INV_FILTER 0x20000000U
typedef struct CanBusClientState CanBusClientState;
#define TYPE_CAN_BUS "can-bus"
OBJECT_DECLARE_SIMPLE_TYPE(CanBusState, CAN_BUS)
typedef struct CanBusClientInfo {
bool (*can_receive)(CanBusClientState *);
ssize_t (*receive)(CanBusClientState *,
const struct qemu_can_frame *frames, size_t frames_cnt);
} CanBusClientInfo;
struct CanBusClientState {
CanBusClientInfo *info;
CanBusState *bus;
int link_down;
QTAILQ_ENTRY(CanBusClientState) next;
CanBusClientState *peer;
char *model;
char *name;
void (*destructor)(CanBusClientState *);
bool fd_mode;
};
int can_bus_filter_match(struct qemu_can_filter *filter, qemu_canid_t can_id);
int can_bus_insert_client(CanBusState *bus, CanBusClientState *client);
int can_bus_remove_client(CanBusClientState *client);
ssize_t can_bus_client_send(CanBusClientState *,
const struct qemu_can_frame *frames,
size_t frames_cnt);
int can_bus_client_set_filters(CanBusClientState *,
const struct qemu_can_filter *filters,
size_t filters_cnt);
uint8_t can_dlc2len(uint8_t can_dlc);
uint8_t can_len2dlc(uint8_t len);
#endif
include/net/can_host.h
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/*
* CAN common CAN bus emulation support
*
* Copyright (c) 2013-2014 Jin Yang
* Copyright (c) 2014-2018 Pavel Pisa
*
* Initial development supported by Google GSoC 2013 from RTEMS project slot
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef NET_CAN_HOST_H
#define NET_CAN_HOST_H
#include "net/can_emu.h"
#include "qom/object.h"
#define TYPE_CAN_HOST "can-host"
OBJECT_DECLARE_TYPE(CanHostState, CanHostClass, CAN_HOST)
struct CanHostState {
Object oc;
CanBusState *bus;
CanBusClientState bus_client;
};
struct CanHostClass {
ObjectClass oc;
void (*connect)(CanHostState *ch, Error **errp);
void (*disconnect)(CanHostState *ch);
};
#endif
include/net/checksum.h
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/*
* IP checksumming functions.
* (c) 2008 Gerd Hoffmann <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; under version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QEMU_NET_CHECKSUM_H
#define QEMU_NET_CHECKSUM_H
#include "qemu/bswap.h"
struct iovec;
#define CSUM_IP 0x01
#define CSUM_TCP 0x02
#define CSUM_UDP 0x04
#define CSUM_ALL (CSUM_IP | CSUM_TCP | CSUM_UDP)
uint32_t net_checksum_add_cont(int len, uint8_t *buf, int seq);
uint16_t net_checksum_finish(uint32_t sum);
uint16_t net_checksum_tcpudp(uint16_t length, uint16_t proto,
uint8_t *addrs, uint8_t *buf);
void net_checksum_calculate(void *data, int length, int csum_flag);
static inline uint32_t
net_checksum_add(int len, uint8_t *buf)
{
return net_checksum_add_cont(len, buf, 0);
}
static inline uint16_t
net_checksum_finish_nozero(uint32_t sum)
{
return net_checksum_finish(sum) ?: 0xFFFF;
}
static inline uint16_t
net_raw_checksum(uint8_t *data, int length)
{
return net_checksum_finish(net_checksum_add(length, data));
}
/**
* net_checksum_add_iov: scatter-gather vector checksumming
*
* @iov: input scatter-gather array
* @iov_cnt: number of array elements
* @iov_off: starting iov offset for checksumming
* @size: length of data to be checksummed
* @csum_offset: offset of the checksum chunk
*/
uint32_t net_checksum_add_iov(const struct iovec *iov,
const unsigned int iov_cnt,
uint32_t iov_off, uint32_t size,
uint32_t csum_offset);
typedef struct toeplitz_key_st {
uint32_t leftmost_32_bits;
uint8_t *next_byte;
} net_toeplitz_key;
static inline
void net_toeplitz_key_init(net_toeplitz_key *key, uint8_t *key_bytes)
{
key->leftmost_32_bits = be32_to_cpu(*(uint32_t *)key_bytes);
key->next_byte = key_bytes + sizeof(uint32_t);
}
static inline
void net_toeplitz_add(uint32_t *result,
uint8_t *input,
uint32_t len,
net_toeplitz_key *key)
{
register uint32_t accumulator = *result;
register uint32_t leftmost_32_bits = key->leftmost_32_bits;
register uint32_t byte;
for (byte = 0; byte < len; byte++) {
register uint8_t input_byte = input[byte];
register uint8_t key_byte = *(key->next_byte++);
register uint8_t bit;
for (bit = 0; bit < 8; bit++) {
if (input_byte & (1 << 7)) {
accumulator ^= leftmost_32_bits;
}
leftmost_32_bits =
(leftmost_32_bits << 1) | ((key_byte & (1 << 7)) >> 7);
input_byte <<= 1;
key_byte <<= 1;
}
}
key->leftmost_32_bits = leftmost_32_bits;
*result = accumulator;
}
#endif /* QEMU_NET_CHECKSUM_H */
include/net/eth.h
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/*
* QEMU network structures definitions and helper functions
*
* Copyright (c) 2012 Ravello Systems LTD (http://ravellosystems.com)
*
* Developed by Daynix Computing LTD (http://www.daynix.com)
*
* Portions developed by Free Software Foundation, Inc
* Copyright (C) 1991-1997, 2001, 2003, 2006 Free Software Foundation, Inc.
* See netinet/ip6.h and netinet/in.h (GNU C Library)
*
* Portions developed by Igor Kovalenko
* Copyright (c) 2006 Igor Kovalenko
* See hw/rtl8139.c (QEMU)
*
* Authors:
* Dmitry Fleytman <[email protected]>
* Tamir Shomer <[email protected]>
* Yan Vugenfirer <[email protected]>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef QEMU_ETH_H
#define QEMU_ETH_H
#include "qemu/bswap.h"
#include "qemu/iov.h"
#define ETH_ALEN 6
#define ETH_HLEN 14
#define ETH_ZLEN 60 /* Min. octets in frame without FCS */
#define ETH_FCS_LEN 4
#define ETH_MTU 1500
struct eth_header {
uint8_t h_dest[ETH_ALEN]; /* destination eth addr */
uint8_t h_source[ETH_ALEN]; /* source ether addr */
uint16_t h_proto; /* packet type ID field */
} QEMU_PACKED;
struct vlan_header {
uint16_t h_tci; /* priority and VLAN ID */
uint16_t h_proto; /* encapsulated protocol */
};
struct ip_header {
uint8_t ip_ver_len; /* version and header length */
uint8_t ip_tos; /* type of service */
uint16_t ip_len; /* total length */
uint16_t ip_id; /* identification */
uint16_t ip_off; /* fragment offset field */
uint8_t ip_ttl; /* time to live */
uint8_t ip_p; /* protocol */
uint16_t ip_sum; /* checksum */
uint32_t ip_src, ip_dst; /* source and destination address */
} QEMU_PACKED;
typedef struct tcp_header {
uint16_t th_sport; /* source port */
uint16_t th_dport; /* destination port */
uint32_t th_seq; /* sequence number */
uint32_t th_ack; /* acknowledgment number */
uint16_t th_offset_flags; /* data offset, reserved 6 bits, */
/* TCP protocol flags */
uint16_t th_win; /* window */
uint16_t th_sum; /* checksum */
uint16_t th_urp; /* urgent pointer */
} QEMU_PACKED tcp_header;
#define TCP_FLAGS_ONLY(flags) ((flags) & 0x3f)
#define TCP_HEADER_FLAGS(tcp) \
TCP_FLAGS_ONLY(be16_to_cpu((tcp)->th_offset_flags))
#define TCP_FLAG_ACK 0x10
#define TCP_HEADER_DATA_OFFSET(tcp) \
(((be16_to_cpu((tcp)->th_offset_flags) >> 12) & 0xf) << 2)
typedef struct udp_header {
uint16_t uh_sport; /* source port */
uint16_t uh_dport; /* destination port */
uint16_t uh_ulen; /* udp length */
uint16_t uh_sum; /* udp checksum */
} QEMU_PACKED udp_header;
typedef struct ip_pseudo_header {
uint32_t ip_src;
uint32_t ip_dst;
uint8_t zeros;
uint8_t ip_proto;
uint16_t ip_payload;
} ip_pseudo_header;
/* IPv6 address */
struct in6_address {
union {
uint8_t __u6_addr8[16];
} __in6_u;
};
struct ip6_header {
union {
struct ip6_hdrctl {
uint32_t ip6_un1_flow; /* 4 bits version, 8 bits TC,
20 bits flow-ID */
uint16_t ip6_un1_plen; /* payload length */
uint8_t ip6_un1_nxt; /* next header */
uint8_t ip6_un1_hlim; /* hop limit */
} ip6_un1;
uint8_t ip6_un2_vfc; /* 4 bits version, top 4 bits tclass */
struct ip6_ecn_access {
uint8_t ip6_un3_vfc; /* 4 bits version, top 4 bits tclass */
uint8_t ip6_un3_ecn; /* 2 bits ECN, top 6 bits payload length */
} ip6_un3;
} ip6_ctlun;
struct in6_address ip6_src; /* source address */
struct in6_address ip6_dst; /* destination address */
} QEMU_PACKED;
typedef struct ip6_pseudo_header {
struct in6_address ip6_src;
struct in6_address ip6_dst;
uint32_t len;
uint8_t zero[3];
uint8_t next_hdr;
} ip6_pseudo_header;
struct ip6_ext_hdr {
uint8_t ip6r_nxt; /* next header */
uint8_t ip6r_len; /* length in units of 8 octets */
};
struct ip6_ext_hdr_routing {
uint8_t nxt;
uint8_t len;
uint8_t rtype;
uint8_t segleft;
uint8_t rsvd[4];
};
struct ip6_option_hdr {
#define IP6_OPT_PAD1 (0x00)
#define IP6_OPT_HOME (0xC9)
uint8_t type;
uint8_t len;
};
struct udp_hdr {
uint16_t uh_sport; /* source port */
uint16_t uh_dport; /* destination port */
uint16_t uh_ulen; /* udp length */
uint16_t uh_sum; /* udp checksum */
};
struct tcp_hdr {
u_short th_sport; /* source port */
u_short th_dport; /* destination port */
uint32_t th_seq; /* sequence number */
uint32_t th_ack; /* acknowledgment number */
#if HOST_BIG_ENDIAN
u_char th_off : 4, /* data offset */
th_x2:4; /* (unused) */
#else
u_char th_x2 : 4, /* (unused) */
th_off:4; /* data offset */
#endif
#define TH_ELN 0x1 /* explicit loss notification */
#define TH_ECN 0x2 /* explicit congestion notification */
#define TH_FS 0x4 /* fast start */
u_char th_flags;
#define TH_FIN 0x01
#define TH_SYN 0x02
#define TH_RST 0x04
#define TH_PUSH 0x08
#define TH_ACK 0x10
#define TH_URG 0x20
#define TH_ECE 0x40
#define TH_CWR 0x80
u_short th_win; /* window */
u_short th_sum; /* checksum */
u_short th_urp; /* urgent pointer */
};
#define ip6_nxt ip6_ctlun.ip6_un1.ip6_un1_nxt
#define ip6_ecn_acc ip6_ctlun.ip6_un3.ip6_un3_ecn
#define ip6_plen ip6_ctlun.ip6_un1.ip6_un1_plen
#define PKT_GET_ETH_HDR(p) \
((struct eth_header *)(p))
#define PKT_GET_VLAN_HDR(p) \
((struct vlan_header *) (((uint8_t *)(p)) + sizeof(struct eth_header)))
#define PKT_GET_DVLAN_HDR(p) \
(PKT_GET_VLAN_HDR(p) + 1)
#define PKT_GET_IP_HDR(p) \
((struct ip_header *)(((uint8_t *)(p)) + eth_get_l2_hdr_length(p)))
#define IP_HDR_GET_LEN(p) \
((ldub_p(p + offsetof(struct ip_header, ip_ver_len)) & 0x0F) << 2)
#define IP_HDR_GET_P(p) \
(ldub_p(p + offsetof(struct ip_header, ip_p)))
#define PKT_GET_IP_HDR_LEN(p) \
(IP_HDR_GET_LEN(PKT_GET_IP_HDR(p)))
#define PKT_GET_IP6_HDR(p) \
((struct ip6_header *) (((uint8_t *)(p)) + eth_get_l2_hdr_length(p)))
#define IP_HEADER_VERSION(ip) \
(((ip)->ip_ver_len >> 4) & 0xf)
#define IP4_IS_FRAGMENT(ip) \
((be16_to_cpu((ip)->ip_off) & (IP_OFFMASK | IP_MF)) != 0)
#define ETH_P_IP (0x0800) /* Internet Protocol packet */
#define ETH_P_ARP (0x0806) /* Address Resolution packet */
#define ETH_P_IPV6 (0x86dd)
#define ETH_P_VLAN (0x8100)
#define ETH_P_DVLAN (0x88a8)
#define ETH_P_NCSI (0x88f8)
#define ETH_P_UNKNOWN (0xffff)
#define VLAN_VID_MASK 0x0fff
#define IP_HEADER_VERSION_4 (4)
#define IP_HEADER_VERSION_6 (6)
#define IP_PROTO_TCP (6)
#define IP_PROTO_UDP (17)
#define IP_PROTO_SCTP (132)
#define IPTOS_ECN_MASK 0x03
#define IPTOS_ECN(x) ((x) & IPTOS_ECN_MASK)
#define IPTOS_ECN_CE 0x03
#define IP6_ECN_MASK 0xC0
#define IP6_ECN(x) ((x) & IP6_ECN_MASK)
#define IP6_ECN_CE 0xC0
#define IP4_DONT_FRAGMENT_FLAG (1 << 14)
#define IS_SPECIAL_VLAN_ID(x) \
(((x) == 0) || ((x) == 0xFFF))
#define ETH_MAX_L2_HDR_LEN \
(sizeof(struct eth_header) + 2 * sizeof(struct vlan_header))
#define ETH_MAX_IP4_HDR_LEN (60)
#define ETH_MAX_IP_DGRAM_LEN (0xFFFF)
#define IP_FRAG_UNIT_SIZE (8)
#define IP_FRAG_ALIGN_SIZE(x) ((x) & ~0x7)
#define IP_RF 0x8000 /* reserved fragment flag */
#define IP_DF 0x4000 /* don't fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
#define IP6_EXT_GRANULARITY (8) /* Size granularity for
IPv6 extension headers */
/* IP6 extension header types */
#define IP6_HOP_BY_HOP (0)
#define IP6_ROUTING (43)
#define IP6_FRAGMENT (44)
#define IP6_ESP (50)
#define IP6_AUTHENTICATION (51)
#define IP6_NONE (59)
#define IP6_DESTINATON (60)
#define IP6_MOBILITY (135)
static inline int is_multicast_ether_addr(const uint8_t *addr)
{
return 0x01 & addr[0];
}
static inline int is_broadcast_ether_addr(const uint8_t *addr)
{
return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == 0xff;
}
static inline int is_unicast_ether_addr(const uint8_t *addr)
{
return !is_multicast_ether_addr(addr);
}
typedef enum {
ETH_PKT_UCAST = 0xAABBCC00,
ETH_PKT_BCAST,
ETH_PKT_MCAST
} eth_pkt_types_e;
static inline eth_pkt_types_e
get_eth_packet_type(const struct eth_header *ehdr)
{
if (is_broadcast_ether_addr(ehdr->h_dest)) {
return ETH_PKT_BCAST;
} else if (is_multicast_ether_addr(ehdr->h_dest)) {
return ETH_PKT_MCAST;
} else { /* unicast */
return ETH_PKT_UCAST;
}
}
static inline uint32_t
eth_get_l2_hdr_length(const void *p)
{
uint16_t proto = be16_to_cpu(PKT_GET_ETH_HDR(p)->h_proto);
struct vlan_header *hvlan = PKT_GET_VLAN_HDR(p);
switch (proto) {
case ETH_P_VLAN:
return sizeof(struct eth_header) + sizeof(struct vlan_header);
case ETH_P_DVLAN:
if (be16_to_cpu(hvlan->h_proto) == ETH_P_VLAN) {
return sizeof(struct eth_header) + 2 * sizeof(struct vlan_header);
} else {
return sizeof(struct eth_header) + sizeof(struct vlan_header);
}
default:
return sizeof(struct eth_header);
}
}
static inline uint32_t
eth_get_l2_hdr_length_iov(const struct iovec *iov, size_t iovcnt, size_t iovoff)
{
uint8_t p[sizeof(struct eth_header) + sizeof(struct vlan_header)];
size_t copied = iov_to_buf(iov, iovcnt, iovoff, p, ARRAY_SIZE(p));
if (copied < ARRAY_SIZE(p)) {
return copied;
}
return eth_get_l2_hdr_length(p);
}
static inline uint16_t
eth_get_pkt_tci(const void *p)
{
uint16_t proto = be16_to_cpu(PKT_GET_ETH_HDR(p)->h_proto);
struct vlan_header *hvlan = PKT_GET_VLAN_HDR(p);
switch (proto) {
case ETH_P_VLAN:
case ETH_P_DVLAN:
return be16_to_cpu(hvlan->h_tci);
default:
return 0;
}
}
size_t
eth_strip_vlan(const struct iovec *iov, int iovcnt, size_t iovoff,
void *new_ehdr_buf,
uint16_t *payload_offset, uint16_t *tci);
size_t
eth_strip_vlan_ex(const struct iovec *iov, int iovcnt, size_t iovoff, int index,
uint16_t vet, uint16_t vet_ext, void *new_ehdr_buf,
uint16_t *payload_offset, uint16_t *tci);
uint16_t
eth_get_l3_proto(const struct iovec *l2hdr_iov, int iovcnt, size_t l2hdr_len);
void eth_setup_vlan_headers(struct eth_header *ehdr, size_t *ehdr_size,
uint16_t vlan_tag, uint16_t vlan_ethtype);
uint8_t eth_get_gso_type(uint16_t l3_proto, uint8_t *l3_hdr, uint8_t l4proto);
typedef struct eth_ip6_hdr_info_st {
uint8_t l4proto;
size_t full_hdr_len;
struct ip6_header ip6_hdr;
bool has_ext_hdrs;
bool rss_ex_src_valid;
struct in6_address rss_ex_src;
bool rss_ex_dst_valid;
struct in6_address rss_ex_dst;
bool fragment;
} eth_ip6_hdr_info;
typedef struct eth_ip4_hdr_info_st {
struct ip_header ip4_hdr;
bool fragment;
} eth_ip4_hdr_info;
typedef enum EthL4HdrProto {
ETH_L4_HDR_PROTO_INVALID,
ETH_L4_HDR_PROTO_TCP,
ETH_L4_HDR_PROTO_UDP,
ETH_L4_HDR_PROTO_SCTP
} EthL4HdrProto;
typedef struct eth_l4_hdr_info_st {
union {
struct tcp_header tcp;
struct udp_header udp;
} hdr;
EthL4HdrProto proto;
bool has_tcp_data;
} eth_l4_hdr_info;
void eth_get_protocols(const struct iovec *iov, size_t iovcnt, size_t iovoff,
bool *hasip4, bool *hasip6,
size_t *l3hdr_off,
size_t *l4hdr_off,
size_t *l5hdr_off,
eth_ip6_hdr_info *ip6hdr_info,
eth_ip4_hdr_info *ip4hdr_info,
eth_l4_hdr_info *l4hdr_info);
void
eth_fix_ip4_checksum(void *l3hdr, size_t l3hdr_len);
uint32_t
eth_calc_ip4_pseudo_hdr_csum(struct ip_header *iphdr,
uint16_t csl,
uint32_t *cso);
uint32_t
eth_calc_ip6_pseudo_hdr_csum(struct ip6_header *iphdr,
uint16_t csl,
uint8_t l4_proto,
uint32_t *cso);
bool
eth_parse_ipv6_hdr(const struct iovec *pkt, int pkt_frags,
size_t ip6hdr_off, eth_ip6_hdr_info *info);
/**
* eth_pad_short_frame - pad a short frame to the minimum Ethernet frame length
*
* If the Ethernet frame size is shorter than 60 bytes, it will be padded to
* 60 bytes at the address @padded_pkt.
*
* @padded_pkt: buffer address to hold the padded frame
* @padded_buflen: pointer holding length of @padded_pkt. If the frame is
* padded, the length will be updated to the padded one.
* @pkt: address to hold the original Ethernet frame
* @pkt_size: size of the original Ethernet frame
* @return true if the frame is padded, otherwise false
*/
bool eth_pad_short_frame(uint8_t *padded_pkt, size_t *padded_buflen,
const void *pkt, size_t pkt_size);
#endif
include/net/filter.h
+82
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/*
* Copyright (c) 2015 FUJITSU LIMITED
* Author: Yang Hongyang <[email protected]>
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
*/
#ifndef QEMU_NET_FILTER_H
#define QEMU_NET_FILTER_H
#include "qapi/qapi-types-common.h"
#include "qemu/queue.h"
#include "qom/object.h"
#include "net/queue.h"
#define TYPE_NETFILTER "netfilter"
OBJECT_DECLARE_TYPE(NetFilterState, NetFilterClass, NETFILTER)
typedef void (FilterSetup) (NetFilterState *nf, Error **errp);
typedef void (FilterCleanup) (NetFilterState *nf);
/*
* Return:
* 0: finished handling the packet, we should continue
* size: filter stolen this packet, we stop pass this packet further
*/
typedef ssize_t (FilterReceiveIOV)(NetFilterState *nc,
NetClientState *sender,
unsigned flags,
const struct iovec *iov,
int iovcnt,
NetPacketSent *sent_cb);
typedef void (FilterStatusChanged) (NetFilterState *nf, Error **errp);
typedef void (FilterHandleEvent) (NetFilterState *nf, int event, Error **errp);
struct NetFilterClass {
ObjectClass parent_class;
/* optional */
FilterSetup *setup;
FilterCleanup *cleanup;
FilterStatusChanged *status_changed;
FilterHandleEvent *handle_event;
/* mandatory */
FilterReceiveIOV *receive_iov;
};
struct NetFilterState {
/* private */
Object parent;
/* protected */
char *netdev_id;
NetClientState *netdev;
NetFilterDirection direction;
bool on;
char *position;
bool insert_before_flag;
QTAILQ_ENTRY(NetFilterState) next;
};
ssize_t qemu_netfilter_receive(NetFilterState *nf,
NetFilterDirection direction,
NetClientState *sender,
unsigned flags,
const struct iovec *iov,
int iovcnt,
NetPacketSent *sent_cb);
/* pass the packet to the next filter */
ssize_t qemu_netfilter_pass_to_next(NetClientState *sender,
unsigned flags,
const struct iovec *iov,
int iovcnt,
void *opaque);
void colo_notify_filters_event(int event, Error **errp);
#endif /* QEMU_NET_FILTER_H */
include/net/net.h
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#ifndef QEMU_NET_H
#define QEMU_NET_H
#include "qemu/queue.h"
#include "qapi/qapi-types-net.h"
#include "net/queue.h"
#include "hw/core/qdev-properties-system.h"
#define MAC_FMT "%02X:%02X:%02X:%02X:%02X:%02X"
#define MAC_ARG(x) ((uint8_t *)(x))[0], ((uint8_t *)(x))[1], \
((uint8_t *)(x))[2], ((uint8_t *)(x))[3], \
((uint8_t *)(x))[4], ((uint8_t *)(x))[5]
#define MAX_QUEUE_NUM 1024
/* Maximum GSO packet size (64k) plus plenty of room for
* the ethernet and virtio_net headers
*/
#define NET_BUFSIZE (4096 + 65536)
struct MACAddr {
uint8_t a[6];
};
/* qdev nic properties */
typedef struct NICPeers {
NetClientState *ncs[MAX_QUEUE_NUM];
int32_t queues;
} NICPeers;
typedef struct NICConf {
MACAddr macaddr;
NICPeers peers;
int32_t bootindex;
} NICConf;
typedef struct NetOffloads {
bool csum;
bool tso4;
bool tso6;
bool ecn;
bool ufo;
bool uso4;
bool uso6;
bool tnl;
bool tnl_csum;
} NetOffloads;
#define DEFINE_NIC_PROPERTIES(_state, _conf) \
DEFINE_PROP_MACADDR("mac", _state, _conf.macaddr), \
DEFINE_PROP_NETDEV("netdev", _state, _conf.peers)
/* Net clients */
typedef void (NetPoll)(NetClientState *, bool enable);
typedef bool (NetCanReceive)(NetClientState *);
typedef int (NetStart)(NetClientState *);
typedef int (NetLoad)(NetClientState *);
typedef void (NetStop)(NetClientState *);
typedef ssize_t (NetReceive)(NetClientState *, const uint8_t *, size_t);
typedef ssize_t (NetReceiveIOV)(NetClientState *, const struct iovec *, int);
typedef void (NetCleanup) (NetClientState *);
typedef void (LinkStatusChanged)(NetClientState *);
typedef void (NetClientDestructor)(NetClientState *);
typedef RxFilterInfo *(QueryRxFilter)(NetClientState *);
typedef bool (HasUfo)(NetClientState *);
typedef bool (HasUso)(NetClientState *);
typedef bool (HasTunnel)(NetClientState *);
typedef bool (HasVnetHdr)(NetClientState *);
typedef bool (HasVnetHdrLen)(NetClientState *, int);
typedef void (SetOffload)(NetClientState *, const NetOffloads *);
typedef int (GetVnetHdrLen)(NetClientState *);
typedef void (SetVnetHdrLen)(NetClientState *, int);
typedef bool (GetVnetHashSupportedTypes)(NetClientState *, uint32_t *);
typedef int (SetVnetLE)(NetClientState *, bool);
typedef int (SetVnetBE)(NetClientState *, bool);
typedef struct SocketReadState SocketReadState;
typedef void (SocketReadStateFinalize)(SocketReadState *rs);
typedef void (NetAnnounce)(NetClientState *);
typedef bool (SetSteeringEBPF)(NetClientState *, int);
typedef bool (NetCheckPeerType)(NetClientState *, ObjectClass *, Error **);
typedef struct vhost_net *(GetVHostNet)(NetClientState *nc);
typedef struct NetClientInfo {
NetClientDriver type;
size_t size;
NetReceive *receive;
NetReceiveIOV *receive_iov;
NetCanReceive *can_receive;
NetStart *start;
NetLoad *load;
NetStop *stop;
NetCleanup *cleanup;
LinkStatusChanged *link_status_changed;
QueryRxFilter *query_rx_filter;
NetPoll *poll;
HasUfo *has_ufo;
HasUso *has_uso;
HasTunnel *has_tunnel;
HasVnetHdr *has_vnet_hdr;
HasVnetHdrLen *has_vnet_hdr_len;
SetOffload *set_offload;
SetVnetHdrLen *set_vnet_hdr_len;
SetVnetLE *set_vnet_le;
SetVnetBE *set_vnet_be;
GetVnetHashSupportedTypes *get_vnet_hash_supported_types;
NetAnnounce *announce;
SetSteeringEBPF *set_steering_ebpf;
NetCheckPeerType *check_peer_type;
GetVHostNet *get_vhost_net;
} NetClientInfo;
struct NetClientState {
NetClientInfo *info;
int link_down;
QTAILQ_ENTRY(NetClientState) next;
NetClientState *peer;
NetQueue *incoming_queue;
char *model;
char *name;
char info_str[256];
unsigned receive_disabled : 1;
NetClientDestructor *destructor;
unsigned int queue_index;
unsigned rxfilter_notify_enabled:1;
int vring_enable;
int vnet_hdr_len;
bool is_netdev;
bool do_not_pad; /* do not pad to the minimum ethernet frame length */
bool is_datapath;
QTAILQ_HEAD(, NetFilterState) filters;
};
typedef QTAILQ_HEAD(NetClientStateList, NetClientState) NetClientStateList;
typedef struct NICState {
NetClientState *ncs;
NICConf *conf;
MemReentrancyGuard *reentrancy_guard;
void *opaque;
bool peer_deleted;
} NICState;
struct SocketReadState {
/* 0 = getting length, 1 = getting vnet header length, 2 = getting data */
int state;
/* This flag decide whether to read the vnet_hdr_len field */
bool vnet_hdr;
uint32_t index;
uint32_t packet_len;
uint32_t vnet_hdr_len;
uint8_t buf[NET_BUFSIZE];
SocketReadStateFinalize *finalize;
};
int net_fill_rstate(SocketReadState *rs, const uint8_t *buf, int size);
char *qemu_mac_strdup_printf(const uint8_t *macaddr);
NetClientState *qemu_find_netdev(const char *id);
int qemu_find_net_clients_except(const char *id, NetClientState **ncs,
NetClientDriver type, int max);
NetClientState *qemu_new_net_client(NetClientInfo *info,
NetClientState *peer,
const char *model,
const char *name);
NetClientState *qemu_new_net_control_client(NetClientInfo *info,
NetClientState *peer,
const char *model,
const char *name);
NICState *qemu_new_nic(NetClientInfo *info,
NICConf *conf,
const char *model,
const char *name,
MemReentrancyGuard *reentrancy_guard,
void *opaque);
void qemu_del_nic(NICState *nic);
NetClientState *qemu_get_subqueue(NICState *nic, int queue_index);
NetClientState *qemu_get_queue(NICState *nic);
NICState *qemu_get_nic(NetClientState *nc);
void *qemu_get_nic_opaque(NetClientState *nc);
void qemu_del_net_client(NetClientState *nc);
typedef void (*qemu_nic_foreach)(NICState *nic, void *opaque);
void qemu_foreach_nic(qemu_nic_foreach func, void *opaque);
int qemu_can_receive_packet(NetClientState *nc);
int qemu_can_send_packet(NetClientState *nc);
ssize_t qemu_sendv_packet(NetClientState *nc, const struct iovec *iov,
int iovcnt);
ssize_t qemu_sendv_packet_async(NetClientState *nc, const struct iovec *iov,
int iovcnt, NetPacketSent *sent_cb);
ssize_t qemu_send_packet(NetClientState *nc, const uint8_t *buf, int size);
ssize_t qemu_receive_packet(NetClientState *nc, const uint8_t *buf, int size);
ssize_t qemu_send_packet_raw(NetClientState *nc, const uint8_t *buf, int size);
ssize_t qemu_send_packet_async(NetClientState *nc, const uint8_t *buf,
int size, NetPacketSent *sent_cb);
void qemu_purge_queued_packets(NetClientState *nc);
void qemu_flush_queued_packets(NetClientState *nc);
void qemu_flush_or_purge_queued_packets(NetClientState *nc, bool purge);
void qemu_set_info_str(NetClientState *nc,
const char *fmt, ...) G_GNUC_PRINTF(2, 3);
void qemu_format_nic_info_str(NetClientState *nc, uint8_t macaddr[6]);
bool qemu_has_ufo(NetClientState *nc);
bool qemu_has_uso(NetClientState *nc);
bool qemu_has_tunnel(NetClientState *nc);
bool qemu_has_vnet_hdr(NetClientState *nc);
bool qemu_has_vnet_hdr_len(NetClientState *nc, int len);
void qemu_set_offload(NetClientState *nc, const NetOffloads *ol);
int qemu_get_vnet_hdr_len(NetClientState *nc);
void qemu_set_vnet_hdr_len(NetClientState *nc, int len);
bool qemu_get_vnet_hash_supported_types(NetClientState *nc, uint32_t *types);
int qemu_set_vnet_le(NetClientState *nc, bool is_le);
int qemu_set_vnet_be(NetClientState *nc, bool is_be);
void qemu_macaddr_default_if_unset(MACAddr *macaddr);
/**
* qemu_find_nic_info: Obtain NIC configuration information
* @typename: Name of device object type
* @match_default: Match NIC configurations with no model specified
* @alias: Additional model string to match (for user convenience and
* backward compatibility).
*
* Search for a NIC configuration matching the NIC model constraints.
*/
NICInfo *qemu_find_nic_info(const char *typename, bool match_default,
const char *alias);
/**
* qemu_configure_nic_device: Apply NIC configuration to a given device
* @dev: Network device to be configured
* @match_default: Match NIC configurations with no model specified
* @alias: Additional model string to match
*
* Search for a NIC configuration for the provided device, using the
* additionally specified matching constraints. If found, apply the
* configuration using qdev_set_nic_properties() and return %true.
*
* This is used by platform code which creates the device anyway,
* regardless of whether there is a configuration for it. This tends
* to be platforms which ignore `--nodefaults` and create net devices
* anyway, for example because the Ethernet device on that board is
* always physically present.
*/
bool qemu_configure_nic_device(DeviceState *dev, bool match_default,
const char *alias);
/**
* qemu_create_nic_device: Create a NIC device if a configuration exists for it
* @typename: Object typename of network device
* @match_default: Match NIC configurations with no model specified
* @alias: Additional model string to match
*
* Search for a NIC configuration for the provided device type. If found,
* create an object of the corresponding type and return it.
*/
DeviceState *qemu_create_nic_device(const char *typename, bool match_default,
const char *alias);
/*
* qemu_create_nic_bus_devices: Create configured NIC devices for a given bus
* @bus: Bus on which to create devices
* @parent_type: Object type for devices to be created (e.g. TYPE_PCI_DEVICE)
* @default_model: Object type name for default NIC model (or %NULL)
* @alias: Additional model string to replace, for user convenience
* @alias_target: Actual object type name to be used in place of @alias
*
* Instantiate dynamic NICs on a given bus, typically a PCI bus. This scans
* for available NIC configurations which either specify a model which is
* a child type of @parent_type, or which do not specify a model when
* @default_model is non-NULL. Each device is instantiated on the given @bus.
*
* A single substitution is supported, e.g. "xen" → "xen-net-device" for the
* Xen bus, or "virtio" → "virtio-net-pci" for PCI. This allows the user to
* specify a more understandable "model=" parameter on the command line, not
* only the real object typename.
*/
void qemu_create_nic_bus_devices(BusState *bus, const char *parent_type,
const char *default_model,
const char *alias, const char *alias_target);
void print_net_client(Monitor *mon, NetClientState *nc);
void net_socket_rs_init(SocketReadState *rs,
SocketReadStateFinalize *finalize,
bool vnet_hdr);
NetClientState *qemu_get_peer(NetClientState *nc, int queue_index);
/**
* qemu_get_nic_models:
* @device_type: Defines which devices should be taken into consideration
* (e.g. TYPE_DEVICE for all devices, or TYPE_PCI_DEVICE for PCI)
*
* Get an array of pointers to names of NIC devices that are available in
* the QEMU binary. The array is terminated with a NULL pointer entry.
* The caller is responsible for freeing the memory when it is not required
* anymore, e.g. with g_ptr_array_free(..., true).
*
* Returns: Pointer to the array that contains the pointers to the names.
*/
GPtrArray *qemu_get_nic_models(const char *device_type);
/* NIC info */
#define MAX_NICS 8
struct NICInfo {
MACAddr macaddr;
char *model;
char *name;
char *devaddr;
NetClientState *netdev;
int used; /* is this slot in nd_table[] being used? */
int instantiated; /* does this NICInfo correspond to an instantiated NIC? */
int nvectors;
};
/* from net.c */
extern NetClientStateList net_clients;
bool netdev_is_modern(const char *optstr);
void netdev_parse_modern(const char *optstr);
void net_client_parse(QemuOptsList *opts_list, const char *optstr);
void show_netdevs(void);
void net_init_clients(void);
void net_check_clients(void);
void net_client_set_link(NetClientState **ncs, int queues, bool up);
void net_cleanup(void);
void hmp_host_net_add(Monitor *mon, const QDict *qdict);
void hmp_host_net_remove(Monitor *mon, const QDict *qdict);
void netdev_add(QemuOpts *opts, Error **errp);
int net_hub_id_for_client(NetClientState *nc, int *id);
#define DEFAULT_NETWORK_SCRIPT CONFIG_SYSCONFDIR "/qemu-ifup"
#define DEFAULT_NETWORK_DOWN_SCRIPT CONFIG_SYSCONFDIR "/qemu-ifdown"
#define DEFAULT_BRIDGE_HELPER CONFIG_QEMU_HELPERDIR "/qemu-bridge-helper"
#define DEFAULT_BRIDGE_INTERFACE "br0"
void qdev_set_nic_properties(DeviceState *dev, NICInfo *nd);
#define POLYNOMIAL_BE 0x04c11db6
#define POLYNOMIAL_LE 0xedb88320
uint32_t net_crc32(const uint8_t *p, int len);
uint32_t net_crc32_le(const uint8_t *p, int len);
#define vmstate_offset_macaddr(_state, _field) \
vmstate_offset_array(_state, _field.a, uint8_t, \
sizeof(typeof_field(_state, _field)))
#define VMSTATE_MACADDR(_field, _state) { \
.name = (stringify(_field)), \
.size = sizeof(MACAddr), \
.info = &vmstate_info_buffer, \
.flags = VMS_BUFFER, \
.offset = vmstate_offset_macaddr(_state, _field), \
}
/**
* net_peer_needs_padding: Should we pad as we send out packets?
* @nc: NetClientState
*
* Return true if the peer of this NetClientState (i.e. the
* destination that qemu_send_packet() etc send to) requires us to pad
* out packets that are shorter than the minimum ethernet frame
* length.
*/
static inline bool net_peer_needs_padding(NetClientState *nc)
{
return nc->peer && !nc->peer->do_not_pad;
}
/**
* net_client_needs_padding: Should we pad as we queue packets to ourselves?
* @nc: NetClientState
*
* Return true if this NetClientState requires us to pad out packets
* that are shorter than the minimum ethernet frame length. This is
* the check to make in qemu_receive_packet() when we are queuing a
* packet back into ourselves (i.e. loopback).
*/
static inline bool net_client_needs_padding(NetClientState *nc)
{
return !nc->do_not_pad;
}
#endif
include/net/queue.h
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/*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2009 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_NET_QUEUE_H
#define QEMU_NET_QUEUE_H
typedef struct NetPacket NetPacket;
typedef struct NetQueue NetQueue;
typedef void (NetPacketSent) (NetClientState *sender, ssize_t ret);
#define QEMU_NET_PACKET_FLAG_NONE 0
#define QEMU_NET_PACKET_FLAG_RAW (1<<0)
/* Returns:
* >0 - success
* 0 - queue packet for future redelivery
* <0 - failure (discard packet)
*/
typedef ssize_t (NetQueueDeliverFunc)(NetClientState *sender,
unsigned flags,
const struct iovec *iov,
int iovcnt,
void *opaque);
NetQueue *qemu_new_net_queue(NetQueueDeliverFunc *deliver, void *opaque);
void qemu_net_queue_append_iov(NetQueue *queue,
NetClientState *sender,
unsigned flags,
const struct iovec *iov,
int iovcnt,
NetPacketSent *sent_cb);
void qemu_del_net_queue(NetQueue *queue);
ssize_t qemu_net_queue_receive(NetQueue *queue,
const uint8_t *data,
size_t size);
ssize_t qemu_net_queue_send(NetQueue *queue,
NetClientState *sender,
unsigned flags,
const uint8_t *data,
size_t size,
NetPacketSent *sent_cb);
ssize_t qemu_net_queue_send_iov(NetQueue *queue,
NetClientState *sender,
unsigned flags,
const struct iovec *iov,
int iovcnt,
NetPacketSent *sent_cb);
void qemu_net_queue_purge(NetQueue *queue, NetClientState *from);
bool qemu_net_queue_flush(NetQueue *queue);
#endif /* QEMU_NET_QUEUE_H */
include/net/slirp.h
+37
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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_NET_SLIRP_H
#define QEMU_NET_SLIRP_H
#ifdef CONFIG_SLIRP
void hmp_hostfwd_add(Monitor *mon, const QDict *qdict);
void hmp_hostfwd_remove(Monitor *mon, const QDict *qdict);
void hmp_info_usernet(Monitor *mon, const QDict *qdict);
#endif
#endif /* QEMU_NET_SLIRP_H */
include/net/tap.h
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/*
* QEMU System Emulator
*
* Copyright (c) 2003-2008 Fabrice Bellard
* Copyright (c) 2009 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef QEMU_NET_TAP_H
#define QEMU_NET_TAP_H
#include "standard-headers/linux/virtio_net.h"
int tap_enable(NetClientState *nc);
int tap_disable(NetClientState *nc);
int tap_get_fd(NetClientState *nc);
#endif /* QEMU_NET_TAP_H */
include/net/vhost-vdpa.h
+17
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@@ -0,0 +1,17 @@
/*
* vhost-vdpa.h
*
* Copyright(c) 2017-2018 Intel Corporation.
* Copyright(c) 2020 Red Hat, Inc.
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#ifndef VHOST_VDPA_H
#define VHOST_VDPA_H
#define TYPE_VHOST_VDPA "vhost-vdpa"
#endif /* VHOST_VDPA_H */
include/net/vhost_net.h
+91
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#ifndef VHOST_NET_H
#define VHOST_NET_H
#include "net/net.h"
#include "hw/virtio/virtio-features.h"
#include "hw/virtio/vhost-backend.h"
struct vhost_net;
typedef struct vhost_net VHostNetState;
typedef uint64_t (GetAckedFeatures)(NetClientState *nc);
typedef void (SaveAcketFeatures)(NetClientState *nc);
typedef struct VhostNetOptions {
VhostBackendType backend_type;
NetClientState *net_backend;
uint32_t busyloop_timeout;
unsigned int nvqs;
const int *feature_bits;
int max_tx_queue_size;
bool is_vhost_user;
GetAckedFeatures *get_acked_features;
SaveAcketFeatures *save_acked_features;
void *opaque;
} VhostNetOptions;
uint64_t vhost_net_get_max_queues(VHostNetState *net);
struct vhost_net *vhost_net_init(VhostNetOptions *options);
int vhost_net_start(VirtIODevice *dev, NetClientState *ncs,
int data_queue_pairs, int cvq);
void vhost_net_stop(VirtIODevice *dev, NetClientState *ncs,
int data_queue_pairs, int cvq);
void vhost_net_cleanup(VHostNetState *net);
void vhost_net_get_features_ex(VHostNetState *net, uint64_t *features);
static inline uint64_t vhost_net_get_features(VHostNetState *net,
uint64_t features)
{
uint64_t features_array[VIRTIO_FEATURES_NU64S];
virtio_features_from_u64(features_array, features);
vhost_net_get_features_ex(net, features_array);
return features_array[0];
}
void vhost_net_ack_features_ex(VHostNetState *net, const uint64_t *features);
static inline void vhost_net_ack_features(VHostNetState *net,
uint64_t features)
{
uint64_t features_array[VIRTIO_FEATURES_NU64S];
virtio_features_from_u64(features_array, features);
vhost_net_ack_features_ex(net, features_array);
}
int vhost_net_get_config(struct vhost_net *net, uint8_t *config,
uint32_t config_len);
int vhost_net_set_config(struct vhost_net *net, const uint8_t *data,
uint32_t offset, uint32_t size, uint32_t flags);
bool vhost_net_virtqueue_pending(VHostNetState *net, int n);
void vhost_net_virtqueue_mask(VHostNetState *net, VirtIODevice *dev,
int idx, bool mask);
bool vhost_net_config_pending(VHostNetState *net);
void vhost_net_config_mask(VHostNetState *net, VirtIODevice *dev, bool mask);
int vhost_net_notify_migration_done(VHostNetState *net, char* mac_addr);
VHostNetState *get_vhost_net(NetClientState *nc);
int vhost_net_set_vring_enable(NetClientState *nc, int enable);
void vhost_net_get_acked_features_ex(VHostNetState *net, uint64_t *features);
static inline uint64_t vhost_net_get_acked_features(VHostNetState *net)
{
uint64_t features[VIRTIO_FEATURES_NU64S];
vhost_net_get_acked_features_ex(net, features);
assert(!virtio_features_use_ex(features));
return features[0];
}
int vhost_net_set_mtu(struct vhost_net *net, uint16_t mtu);
void vhost_net_virtqueue_reset(VirtIODevice *vdev, NetClientState *nc,
int vq_index);
int vhost_net_virtqueue_restart(VirtIODevice *vdev, NetClientState *nc,
int vq_index);
void vhost_net_save_acked_features(NetClientState *nc);
#endif