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Tsirkin" , Michael Roth , Paolo Bonzini , Luigi Rizzo , Giuseppe Lettieri , Vincenzo Maffione , Stefan Weil , Stefano Stabellini , Anthony Perard , Paul Durrant , xen-devel@lists.xenproject.org, qemu-devel@nongnu.org, yc-core@yandex-team.ru Subject: [PATCH v6 1/5] qapi: net: Add query-netdev command Date: Tue, 2 Mar 2021 21:02:01 +0300 Message-Id: <20210302180205.5009-2-lekiravi@yandex-team.ru> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210302180205.5009-1-lekiravi@yandex-team.ru> References: <20210302180205.5009-1-lekiravi@yandex-team.ru> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @yandex-team.ru) Content-Type: text/plain; charset="utf-8" The query-netdev command is used to get the configuration of the current network device backends (netdevs). This is the QMP analog of the HMP command "info network" but only for netde= vs (i.e. excluding NIC and hubports). The query-netdev command returns an array of objects of the NetdevInfo type, which are an extension of Netdev type. It means that response can be used f= or netdev-add after small modification. This can be useful for recreate the sa= me netdev configuration. Information about the network device is filled in when it is created or modified and is available through the NetClientState->stored_config. Signed-off-by: Alexey Kirillov Acked-by: Markus Armbruster --- include/net/net.h | 3 ++ net/l2tpv3.c | 7 +++ net/net.c | 32 +++++++++++- net/netmap.c | 7 +++ net/slirp.c | 124 ++++++++++++++++++++++++++++++++++++++++++++++ net/socket.c | 71 ++++++++++++++++++++++++++ net/tap-win32.c | 9 ++++ net/tap.c | 103 ++++++++++++++++++++++++++++++++++++-- net/vde.c | 22 ++++++++ net/vhost-user.c | 18 +++++-- net/vhost-vdpa.c | 14 ++++++ qapi/net.json | 80 ++++++++++++++++++++++++++++++ 12 files changed, 481 insertions(+), 9 deletions(-) diff --git a/include/net/net.h b/include/net/net.h index 919facaad2..162fd3f1b5 100644 --- a/include/net/net.h +++ b/include/net/net.h @@ -5,6 +5,8 @@ #include "qapi/qapi-types-net.h" #include "net/queue.h" #include "hw/qdev-properties-system.h" +#include "qapi/clone-visitor.h" +#include "qapi/qapi-visit-net.h" =20 #define MAC_FMT "%02X:%02X:%02X:%02X:%02X:%02X" #define MAC_ARG(x) ((uint8_t *)(x))[0], ((uint8_t *)(x))[1], \ @@ -93,6 +95,7 @@ struct NetClientState { char *model; char *name; char info_str[256]; + NetdevInfo *stored_config; unsigned receive_disabled : 1; NetClientDestructor *destructor; unsigned int queue_index; diff --git a/net/l2tpv3.c b/net/l2tpv3.c index e4d4218db6..8aa0a3e1a0 100644 --- a/net/l2tpv3.c +++ b/net/l2tpv3.c @@ -723,6 +723,13 @@ int net_init_l2tpv3(const Netdev *netdev, =20 l2tpv3_read_poll(s, true); =20 + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_L2TPV3; + + QAPI_CLONE_MEMBERS(NetdevL2TPv3Options, + &nc->stored_config->u.l2tpv3, l2tpv3); + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "l2tpv3: connected"); return 0; diff --git a/net/net.c b/net/net.c index fb7b7dcc25..9b213f72d2 100644 --- a/net/net.c +++ b/net/net.c @@ -35,7 +35,6 @@ #include "monitor/monitor.h" #include "qemu/help_option.h" #include "qapi/qapi-commands-net.h" -#include "qapi/qapi-visit-net.h" #include "qapi/qmp/qdict.h" #include "qapi/qmp/qerror.h" #include "qemu/error-report.h" @@ -352,6 +351,7 @@ static void qemu_free_net_client(NetClientState *nc) } g_free(nc->name); g_free(nc->model); + qapi_free_NetdevInfo(nc->stored_config); if (nc->destructor) { nc->destructor(nc); } @@ -1260,6 +1260,36 @@ RxFilterInfoList *qmp_query_rx_filter(bool has_name,= const char *name, return filter_list; } =20 +NetdevInfoList *qmp_query_netdev(Error **errp) +{ + NetdevInfoList *list =3D NULL; + NetClientState *nc; + + QTAILQ_FOREACH(nc, &net_clients, next) { + /* + * Only look at netdevs (backend network devices), not for each qu= eue + * or NIC / hubport + */ + if (nc->stored_config) { + NetdevInfoList *node =3D g_new0(NetdevInfoList, 1); + + node->value =3D QAPI_CLONE(NetdevInfo, nc->stored_config); + g_free(node->value->id); /* Need to dealloc default empty id */ + node->value->id =3D g_strdup(nc->name); + + node->value->has_peer_id =3D nc->peer !=3D NULL; + if (node->value->has_peer_id) { + node->value->peer_id =3D g_strdup(nc->peer->name); + } + + node->next =3D list; + list =3D node; + } + } + + return list; +} + void hmp_info_network(Monitor *mon, const QDict *qdict) { NetClientState *nc, *peer; diff --git a/net/netmap.c b/net/netmap.c index 350f097f91..ad59d4ade4 100644 --- a/net/netmap.c +++ b/net/netmap.c @@ -427,6 +427,13 @@ int net_init_netmap(const Netdev *netdev, pstrcpy(s->ifname, sizeof(s->ifname), netmap_opts->ifname); netmap_read_poll(s, true); /* Initially only poll for reads. */ =20 + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_NETMAP; + + QAPI_CLONE_MEMBERS(NetdevNetmapOptions, + &nc->stored_config->u.netmap, netmap_opts); + return 0; } =20 diff --git a/net/slirp.c b/net/slirp.c index be914c0be0..5f126d7cf5 100644 --- a/net/slirp.c +++ b/net/slirp.c @@ -345,6 +345,14 @@ static SaveVMHandlers savevm_slirp_state =3D { .load_state =3D net_slirp_state_load, }; =20 +#define APPEND_STRINGLIST(tail, new_val) \ + do { \ + *(tail) =3D g_new0(StringList, 1); \ + (*(tail))->value =3D g_new0(String, 1); \ + (*(tail))->value->str =3D g_strdup((new_val)); \ + (tail) =3D &((*(tail))->next); \ + } while (0) + static int net_slirp_init(NetClientState *peer, const char *model, const char *name, int restricted, bool ipv4, const char *vnetwork, const char *vho= st, @@ -377,6 +385,9 @@ static int net_slirp_init(NetClientState *peer, const c= har *model, int shift; char *end; struct slirp_config_str *config; + NetdevUserOptions *stored; + StringList **stored_hostfwd; + StringList **stored_guestfwd; =20 if (!ipv4 && (vnetwork || vhost || vnameserver)) { error_setg(errp, "IPv4 disabled but netmask/host/dns provided"); @@ -552,6 +563,112 @@ static int net_slirp_init(NetClientState *peer, const= char *model, =20 nc =3D qemu_new_net_client(&net_slirp_info, peer, model, name); =20 + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_USER; + stored =3D &nc->stored_config->u.user; + + if (vhostname) { + stored->has_hostname =3D true; + stored->hostname =3D g_strdup(vhostname); + } + + stored->has_q_restrict =3D true; + stored->q_restrict =3D restricted; + + stored->has_ipv4 =3D true; + stored->ipv4 =3D ipv4; + + stored->has_ipv6 =3D true; + stored->ipv6 =3D ipv6; + + if (ipv4) { + uint8_t *net_bytes =3D (uint8_t *)&net; + uint8_t *mask_bytes =3D (uint8_t *)&mask; + + stored->has_net =3D true; + stored->net =3D g_strdup_printf("%d.%d.%d.%d/%d.%d.%d.%d", + net_bytes[0], net_bytes[1], + net_bytes[2], net_bytes[3], + mask_bytes[0], mask_bytes[1], + mask_bytes[2], mask_bytes[3]); + + stored->has_host =3D true; + stored->host =3D g_strdup(inet_ntoa(host)); + } + + if (tftp_export) { + stored->has_tftp =3D true; + stored->tftp =3D g_strdup(tftp_export); + } + + if (bootfile) { + stored->has_bootfile =3D true; + stored->bootfile =3D g_strdup(bootfile); + } + + if (vdhcp_start) { + stored->has_dhcpstart =3D true; + stored->dhcpstart =3D g_strdup(vdhcp_start); + } + + if (ipv4) { + stored->has_dns =3D true; + stored->dns =3D g_strdup(inet_ntoa(dns)); + } + + if (dnssearch) { + stored->has_dnssearch =3D true; + StringList **stored_list =3D &stored->dnssearch; + + for (int i =3D 0; dnssearch[i]; i++) { + APPEND_STRINGLIST(stored_list, dnssearch[i]); + } + } + + if (vdomainname) { + stored->has_domainname =3D true; + stored->domainname =3D g_strdup(vdomainname); + } + + if (ipv6) { + char addrstr[INET6_ADDRSTRLEN]; + const char *res; + + stored->has_ipv6_prefix =3D true; + stored->ipv6_prefix =3D g_strdup(vprefix6); + + stored->has_ipv6_prefixlen =3D true; + stored->ipv6_prefixlen =3D vprefix6_len; + + res =3D inet_ntop(AF_INET6, &ip6_host, + addrstr, sizeof(addrstr)); + + stored->has_ipv6_host =3D true; + stored->ipv6_host =3D g_strdup(res); + + res =3D inet_ntop(AF_INET6, &ip6_dns, + addrstr, sizeof(addrstr)); + + stored->has_ipv6_dns =3D true; + stored->ipv6_dns =3D g_strdup(res); + } + + if (smb_export) { + stored->has_smb =3D true; + stored->smb =3D g_strdup(smb_export); + } + + if (vsmbserver) { + stored->has_smbserver =3D true; + stored->smbserver =3D g_strdup(vsmbserver); + } + + if (tftp_server_name) { + stored->has_tftp_server_name =3D true; + stored->tftp_server_name =3D g_strdup(tftp_server_name); + } + snprintf(nc->info_str, sizeof(nc->info_str), "net=3D%s,restrict=3D%s", inet_ntoa(net), restricted ? "on" : "off"); @@ -581,15 +698,22 @@ static int net_slirp_init(NetClientState *peer, const= char *model, s->poll_notifier.notify =3D net_slirp_poll_notify; main_loop_poll_add_notifier(&s->poll_notifier); =20 + stored_hostfwd =3D &stored->hostfwd; + stored_guestfwd =3D &stored->guestfwd; + for (config =3D slirp_configs; config; config =3D config->next) { if (config->flags & SLIRP_CFG_HOSTFWD) { if (slirp_hostfwd(s, config->str, errp) < 0) { goto error; } + stored->has_hostfwd =3D true; + APPEND_STRINGLIST(stored_hostfwd, config->str); } else { if (slirp_guestfwd(s, config->str, errp) < 0) { goto error; } + stored->has_guestfwd =3D true; + APPEND_STRINGLIST(stored_guestfwd, config->str); } } #ifndef _WIN32 diff --git a/net/socket.c b/net/socket.c index 15b410e8d8..1614523b82 100644 --- a/net/socket.c +++ b/net/socket.c @@ -342,6 +342,7 @@ static NetSocketState *net_socket_fd_init_dgram(NetClie= ntState *peer, NetSocketState *s; SocketAddress *sa; SocketAddressType sa_type; + NetdevSocketOptions *stored; =20 sa =3D socket_local_address(fd, errp); if (!sa) { @@ -385,8 +386,19 @@ static NetSocketState *net_socket_fd_init_dgram(NetCli= entState *peer, net_socket_rs_init(&s->rs, net_socket_rs_finalize, false); net_socket_read_poll(s, true); =20 + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_SOCKET; + stored =3D &nc->stored_config->u.socket; + + stored->has_fd =3D true; + stored->fd =3D g_strdup_printf("%d", fd); + /* mcast: save bound address as dst */ if (is_connected && mcast !=3D NULL) { + stored->has_mcast =3D true; + stored->mcast =3D g_strdup(mcast); + s->dgram_dst =3D saddr; snprintf(nc->info_str, sizeof(nc->info_str), "socket: fd=3D%d (cloned mcast=3D%s:%d)", @@ -428,6 +440,7 @@ static NetSocketState *net_socket_fd_init_stream(NetCli= entState *peer, { NetClientState *nc; NetSocketState *s; + NetdevSocketOptions *stored; =20 nc =3D qemu_new_net_client(&net_socket_info, peer, model, name); =20 @@ -447,6 +460,15 @@ static NetSocketState *net_socket_fd_init_stream(NetCl= ientState *peer, } else { qemu_set_fd_handler(s->fd, NULL, net_socket_connect, s); } + + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_SOCKET; + stored =3D &nc->stored_config->u.socket; + + stored->has_fd =3D true; + stored->fd =3D g_strdup_printf("%d", fd); + return s; } =20 @@ -483,6 +505,7 @@ static void net_socket_accept(void *opaque) struct sockaddr_in saddr; socklen_t len; int fd; + NetdevSocketOptions *stored; =20 for(;;) { len =3D sizeof(saddr); @@ -498,6 +521,13 @@ static void net_socket_accept(void *opaque) s->fd =3D fd; s->nc.link_down =3D false; net_socket_connect(s); + + /* Store additional startup parameters (extend net_socket_listen_init)= */ + stored =3D &s->nc.stored_config->u.socket; + + stored->has_fd =3D true; + stored->fd =3D g_strdup_printf("%d", fd); + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "socket: connection from %s:%d", inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); @@ -513,6 +543,7 @@ static int net_socket_listen_init(NetClientState *peer, NetSocketState *s; struct sockaddr_in saddr; int fd, ret; + NetdevSocketOptions *stored; =20 if (parse_host_port(&saddr, host_str, errp) < 0) { return -1; @@ -549,6 +580,15 @@ static int net_socket_listen_init(NetClientState *peer, net_socket_rs_init(&s->rs, net_socket_rs_finalize, false); =20 qemu_set_fd_handler(s->listen_fd, net_socket_accept, NULL, s); + + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_SOCKET; + stored =3D &nc->stored_config->u.socket; + + stored->has_listen =3D true; + stored->listen =3D g_strdup(host_str); + return 0; } =20 @@ -561,6 +601,7 @@ static int net_socket_connect_init(NetClientState *peer, NetSocketState *s; int fd, connected, ret; struct sockaddr_in saddr; + NetdevSocketOptions *stored; =20 if (parse_host_port(&saddr, host_str, errp) < 0) { return -1; @@ -598,6 +639,12 @@ static int net_socket_connect_init(NetClientState *pee= r, return -1; } =20 + /* Store additional startup parameters (extend net_socket_fd_init) */ + stored =3D &s->nc.stored_config->u.socket; + + stored->has_connect =3D true; + stored->connect =3D g_strdup(host_str); + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "socket: connect to %s:%d", inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); @@ -615,6 +662,7 @@ static int net_socket_mcast_init(NetClientState *peer, int fd; struct sockaddr_in saddr; struct in_addr localaddr, *param_localaddr; + NetdevSocketOptions *stored; =20 if (parse_host_port(&saddr, host_str, errp) < 0) { return -1; @@ -643,6 +691,19 @@ static int net_socket_mcast_init(NetClientState *peer, =20 s->dgram_dst =3D saddr; =20 + /* Store additional startup parameters (extend net_socket_fd_init) */ + stored =3D &s->nc.stored_config->u.socket; + + if (!stored->has_mcast) { + stored->has_mcast =3D true; + stored->mcast =3D g_strdup(host_str); + } + + if (localaddr_str) { + stored->has_localaddr =3D true; + stored->localaddr =3D g_strdup(localaddr_str); + } + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "socket: mcast=3D%s:%d", inet_ntoa(saddr.sin_addr), ntohs(saddr.sin_port)); @@ -660,6 +721,7 @@ static int net_socket_udp_init(NetClientState *peer, NetSocketState *s; int fd, ret; struct sockaddr_in laddr, raddr; + NetdevSocketOptions *stored; =20 if (parse_host_port(&laddr, lhost, errp) < 0) { return -1; @@ -698,6 +760,15 @@ static int net_socket_udp_init(NetClientState *peer, =20 s->dgram_dst =3D raddr; =20 + /* Store additional startup parameters (extend net_socket_fd_init) */ + stored =3D &s->nc.stored_config->u.socket; + + stored->has_localaddr =3D true; + stored->localaddr =3D g_strdup(lhost); + + stored->has_udp =3D true; + stored->udp =3D g_strdup(rhost); + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "socket: udp=3D%s:%d", inet_ntoa(raddr.sin_addr), ntohs(raddr.sin_port)); diff --git a/net/tap-win32.c b/net/tap-win32.c index 2b5dcda36e..b60933bd1a 100644 --- a/net/tap-win32.c +++ b/net/tap-win32.c @@ -768,6 +768,7 @@ static int tap_win32_init(NetClientState *peer, const c= har *model, NetClientState *nc; TAPState *s; tap_win32_overlapped_t *handle; + NetdevTapOptions *stored; =20 if (tap_win32_open(&handle, ifname) < 0) { printf("tap: Could not open '%s'\n", ifname); @@ -778,6 +779,14 @@ static int tap_win32_init(NetClientState *peer, const = char *model, =20 s =3D DO_UPCAST(TAPState, nc, nc); =20 + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_TAP; + stored =3D &nc->stored_config->u.tap; + + stored->has_ifname =3D true; + stored->ifname =3D g_strdup(ifname); + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "tap: ifname=3D%s", ifname); =20 diff --git a/net/tap.c b/net/tap.c index b7512853f4..8041245ba7 100644 --- a/net/tap.c +++ b/net/tap.c @@ -590,6 +590,7 @@ int net_init_bridge(const Netdev *netdev, const char *n= ame, const char *helper, *br; TAPState *s; int fd, vnet_hdr; + NetdevBridgeOptions *stored; =20 assert(netdev->type =3D=3D NET_CLIENT_DRIVER_BRIDGE); bridge =3D &netdev->u.bridge; @@ -609,6 +610,21 @@ int net_init_bridge(const Netdev *netdev, const char *= name, } s =3D net_tap_fd_init(peer, "bridge", name, fd, vnet_hdr); =20 + /* Store startup parameters */ + s->nc.stored_config =3D g_new0(NetdevInfo, 1); + s->nc.stored_config->type =3D NET_BACKEND_BRIDGE; + stored =3D &s->nc.stored_config->u.bridge; + + if (br) { + stored->has_br =3D true; + stored->br =3D g_strdup(br); + } + + if (helper) { + stored->has_helper =3D true; + stored->helper =3D g_strdup(helper); + } + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "helper=3D%s,br=3D%s"= , helper, br); =20 @@ -656,11 +672,13 @@ static void net_init_tap_one(const NetdevTapOptions *= tap, NetClientState *peer, const char *model, const char *name, const char *ifname, const char *script, const char *downscript, const char *vhostfdna= me, - int vnet_hdr, int fd, Error **errp) + int vnet_hdr, int fd, NetdevInfo **common_sto= red, + Error **errp) { Error *err =3D NULL; TAPState *s =3D net_tap_fd_init(peer, model, name, fd, vnet_hdr); int vhostfd; + NetdevTapOptions *stored; =20 tap_set_sndbuf(s->fd, tap, &err); if (err) { @@ -668,12 +686,65 @@ static void net_init_tap_one(const NetdevTapOptions *= tap, NetClientState *peer, return; } =20 + /* Store startup parameters */ + if (!*common_stored) { + *common_stored =3D g_new0(NetdevInfo, 1); + (*common_stored)->type =3D NET_BACKEND_TAP; + s->nc.stored_config =3D *common_stored; + } + stored =3D &(*common_stored)->u.tap; + + if (tap->has_sndbuf && !stored->has_sndbuf) { + stored->has_sndbuf =3D true; + stored->sndbuf =3D tap->sndbuf; + } + + if (vnet_hdr && !stored->has_vnet_hdr) { + stored->has_vnet_hdr =3D true; + stored->vnet_hdr =3D true; + } + if (tap->has_fd || tap->has_fds) { + if (!stored->has_fds) { + stored->has_fds =3D true; + stored->fds =3D g_strdup_printf("%d", fd); + } else { + char *tmp_s =3D stored->fds; + stored->fds =3D g_strdup_printf("%s:%d", stored->fds, fd); + g_free(tmp_s); + } + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "fd=3D%d", fd); } else if (tap->has_helper) { + if (!stored->has_helper) { + stored->has_helper =3D true; + stored->helper =3D g_strdup(tap->helper); + } + + if (!stored->has_br) { + stored->has_br =3D true; + stored->br =3D tap->has_br ? g_strdup(tap->br) : + g_strdup(DEFAULT_BRIDGE_INTERFACE); + } + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "helper=3D%s", tap->helper); } else { + if (ifname && !stored->has_ifname) { + stored->has_ifname =3D true; + stored->ifname =3D g_strdup(ifname); + } + + if (script && !stored->has_script) { + stored->has_script =3D true; + stored->script =3D g_strdup(script); + } + + if (downscript && !stored->has_downscript) { + stored->has_downscript =3D true; + stored->downscript =3D g_strdup(downscript); + } + snprintf(s->nc.info_str, sizeof(s->nc.info_str), "ifname=3D%s,script=3D%s,downscript=3D%s", ifname, script, downscript); @@ -689,9 +760,20 @@ static void net_init_tap_one(const NetdevTapOptions *t= ap, NetClientState *peer, vhostfdname || (tap->has_vhostforce && tap->vhostforce)) { VhostNetOptions options; =20 + stored->has_vhost =3D true; + stored->vhost =3D true; + + if (tap->has_vhostforce && tap->vhostforce) { + stored->has_vhostforce =3D true; + stored->vhostforce =3D true; + } + options.backend_type =3D VHOST_BACKEND_TYPE_KERNEL; options.net_backend =3D &s->nc; if (tap->has_poll_us) { + stored->has_poll_us =3D true; + stored->poll_us =3D tap->poll_us; + options.busyloop_timeout =3D tap->poll_us; } else { options.busyloop_timeout =3D 0; @@ -731,6 +813,15 @@ static void net_init_tap_one(const NetdevTapOptions *t= ap, NetClientState *peer, } options.opaque =3D (void *)(uintptr_t)vhostfd; =20 + if (!stored->has_vhostfds) { + stored->has_vhostfds =3D true; + stored->vhostfds =3D g_strdup_printf("%d", vhostfd); + } else { + char *tmp_s =3D stored->vhostfds; + stored->vhostfds =3D g_strdup_printf("%s:%d", stored->fds, vho= stfd); + g_free(tmp_s); + } + s->vhost_net =3D vhost_net_init(&options); if (!s->vhost_net) { if (tap->has_vhostforce && tap->vhostforce) { @@ -783,6 +874,7 @@ int net_init_tap(const Netdev *netdev, const char *name, const char *vhostfdname; char ifname[128]; int ret =3D 0; + NetdevInfo *common_stored =3D NULL; /* will store configuration */ =20 assert(netdev->type =3D=3D NET_CLIENT_DRIVER_TAP); tap =3D &netdev->u.tap; @@ -829,7 +921,7 @@ int net_init_tap(const Netdev *netdev, const char *name, =20 net_init_tap_one(tap, peer, "tap", name, NULL, script, downscript, - vhostfdname, vnet_hdr, fd, &err); + vhostfdname, vnet_hdr, fd, &common_stored, &err); if (err) { error_propagate(errp, err); close(fd); @@ -892,7 +984,7 @@ int net_init_tap(const Netdev *netdev, const char *name, net_init_tap_one(tap, peer, "tap", name, ifname, script, downscript, tap->has_vhostfds ? vhost_fds[i] : NULL, - vnet_hdr, fd, &err); + vnet_hdr, fd, &common_stored, &err); if (err) { error_propagate(errp, err); ret =3D -1; @@ -935,7 +1027,7 @@ free_fail: =20 net_init_tap_one(tap, peer, "bridge", name, ifname, script, downscript, vhostfdname, - vnet_hdr, fd, &err); + vnet_hdr, fd, &common_stored, &err); if (err) { error_propagate(errp, err); close(fd); @@ -981,7 +1073,8 @@ free_fail: net_init_tap_one(tap, peer, "tap", name, ifname, i >=3D 1 ? "no" : script, i >=3D 1 ? "no" : downscript, - vhostfdname, vnet_hdr, fd, &err); + vhostfdname, vnet_hdr, fd, + &common_stored, &err); if (err) { error_propagate(errp, err); close(fd); diff --git a/net/vde.c b/net/vde.c index 99189cccb6..b0b8800571 100644 --- a/net/vde.c +++ b/net/vde.c @@ -84,6 +84,7 @@ static int net_vde_init(NetClientState *peer, const char = *model, VDECONN *vde; char *init_group =3D (char *)group; char *init_sock =3D (char *)sock; + NetdevVdeOptions *stored; =20 struct vde_open_args args =3D { .port =3D port, @@ -108,6 +109,27 @@ static int net_vde_init(NetClientState *peer, const ch= ar *model, =20 qemu_set_fd_handler(vde_datafd(s->vde), vde_to_qemu, NULL, s); =20 + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_VDE; + stored =3D &nc->stored_config->u.vde; + + if (sock) { + stored->has_sock =3D true; + stored->sock =3D g_strdup(sock); + } + + stored->has_port =3D true; + stored->port =3D port; + + if (group) { + stored->has_group =3D true; + stored->group =3D g_strdup(group); + } + + stored->has_mode =3D true; + stored->mode =3D mode; + return 0; } =20 diff --git a/net/vhost-user.c b/net/vhost-user.c index ffbd94d944..5b7056be25 100644 --- a/net/vhost-user.c +++ b/net/vhost-user.c @@ -311,14 +311,15 @@ static void net_vhost_user_event(void *opaque, QEMUCh= rEvent event) } =20 static int net_vhost_user_init(NetClientState *peer, const char *device, - const char *name, Chardev *chr, - int queues) + const char *name, const char *chardev, + Chardev *chr, int queues) { Error *err =3D NULL; NetClientState *nc, *nc0 =3D NULL; NetVhostUserState *s =3D NULL; VhostUserState *user; int i; + NetdevVhostUserOptions *stored; =20 assert(name); assert(queues > 0); @@ -355,6 +356,16 @@ static int net_vhost_user_init(NetClientState *peer, c= onst char *device, =20 assert(s->vhost_net); =20 + /* Store startup parameters */ + nc0->stored_config =3D g_new0(NetdevInfo, 1); + nc0->stored_config->type =3D NET_BACKEND_VHOST_USER; + stored =3D &nc0->stored_config->u.vhost_user; + + stored->chardev =3D g_strdup(chardev); + + stored->has_queues =3D true; + stored->queues =3D queues; + return 0; =20 err: @@ -446,5 +457,6 @@ int net_init_vhost_user(const Netdev *netdev, const cha= r *name, return -1; } =20 - return net_vhost_user_init(peer, "vhost_user", name, chr, queues); + return net_vhost_user_init(peer, "vhost_user", name, + vhost_user_opts->chardev, chr, queues); } diff --git a/net/vhost-vdpa.c b/net/vhost-vdpa.c index fe659ec9e2..8c27ea0142 100644 --- a/net/vhost-vdpa.c +++ b/net/vhost-vdpa.c @@ -184,8 +184,22 @@ static int net_vhost_vdpa_init(NetClientState *peer, c= onst char *device, VhostVDPAState *s; int vdpa_device_fd =3D -1; int ret =3D 0; + NetdevVhostVDPAOptions *stored; + assert(name); nc =3D qemu_new_net_client(&net_vhost_vdpa_info, peer, device, name); + + /* Store startup parameters */ + nc->stored_config =3D g_new0(NetdevInfo, 1); + nc->stored_config->type =3D NET_BACKEND_VHOST_VDPA; + stored =3D &nc->stored_config->u.vhost_vdpa; + + stored->has_vhostdev =3D true; + stored->vhostdev =3D g_strdup(vhostdev); + + stored->has_queues =3D true; + stored->queues =3D 1; /* TODO: change when support multiqueue */ + snprintf(nc->info_str, sizeof(nc->info_str), TYPE_VHOST_VDPA); nc->queue_index =3D 0; s =3D DO_UPCAST(VhostVDPAState, nc, nc); diff --git a/qapi/net.json b/qapi/net.json index c31748c87f..94130abdd1 100644 --- a/qapi/net.json +++ b/qapi/net.json @@ -714,3 +714,83 @@ ## { 'event': 'FAILOVER_NEGOTIATED', 'data': {'device-id': 'str'} } + +## +# @NetBackend: +# +# Available netdev backend drivers. +# +# Since: 6.0 +## +{ 'enum': 'NetBackend', + 'data': [ 'user', 'tap', 'l2tpv3', 'socket', 'vde', 'bridge', 'netmap', + 'vhost-user', 'vhost-vdpa' ] } + +## +# @NetdevInfo: +# +# Configuration of a network backend device (netdev). +# +# @id: Device identifier. +# +# @type: Specify the driver used for interpreting remaining arguments. +# +# @peer-id: The connected frontend network device name (absent if no front= end +# is connected). +# +# Since: 6.0 +## +{ 'union': 'NetdevInfo', + 'base': { 'id': 'str', + 'type': 'NetBackend', + '*peer-id': 'str' }, + 'discriminator': 'type', + 'data': { + 'user': 'NetdevUserOptions', + 'tap': 'NetdevTapOptions', + 'l2tpv3': 'NetdevL2TPv3Options', + 'socket': 'NetdevSocketOptions', + 'vde': 'NetdevVdeOptions', + 'bridge': 'NetdevBridgeOptions', + 'netmap': 'NetdevNetmapOptions', + 'vhost-user': 'NetdevVhostUserOptions', + 'vhost-vdpa': 'NetdevVhostVDPAOptions' } } + +## +# @query-netdev: +# +# Get a list of @NetdevInfo for all virtual network backend devices (netde= vs). +# +# Returns: a list of @NetdevInfo describing each netdev. +# +# Since: 6.0 +# +# Example: +# +# -> { "execute": "query-netdev" } +# <- { "return": [ +# { +# "ipv6": true, +# "ipv4": true, +# "host": "10.0.2.2", +# "ipv6-dns": "fec0::3", +# "ipv6-prefix": "fec0::", +# "net": "10.0.2.0/255.255.255.0", +# "ipv6-host": "fec0::2", +# "type": "user", +# "peer-id": "net0", +# "dns": "10.0.2.3", +# "hostfwd": [ +# { +# "str": "tcp::20004-:22" +# } +# ], +# "ipv6-prefixlen": 64, +# "id": "netdev0", +# "restrict": false +# } +# ] +# } +# +## +{ 'command': 'query-netdev', 'returns': ['NetdevInfo'] } --=20 2.25.1