Hi Eric and Markus,

Do you have any comments about QAPI schema?

Best Regards,
Konstantin Kostiuk.


On Wed, Jul 17, 2024 at 4:57 PM Philippe Mathieu-Daudé <phi...@linaro.org>
wrote:

> On 13/6/24 13:18, Konstantin Kostiuk wrote:
> > CC: Daniel, Philippe
>
> Having a quick look, no major issue noticed.
>
> Cc'ing Markus/Eric for QAPI schema.
>
> BTW MAINTAINERS likely missing:
>
> -- >8 --
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 7d9811458c..af4db698de 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3217,10 +3217,11 @@ T: git https://repo.or.cz/qemu/armbru.git
> qapi-next
>   QAPI Schema
>   M: Eric Blake <ebl...@redhat.com>
>   M: Markus Armbruster <arm...@redhat.com>
>   S: Supported
>   F: qapi/*.json
> +F: qga/qapi-schema.json
>   T: git https://repo.or.cz/qemu/armbru.git qapi-next
>
> ---
>
> >
> > On Thu, Jun 13, 2024 at 12:28 PM Dehan Meng <dem...@redhat.com
> > <mailto:dem...@redhat.com>> wrote:
> >
> >     The Route information of the Linux VM needs to be used
> >     by administrators and users when debugging network problems
> >     and troubleshooting.
> >
> >     Signed-off-by: Dehan Meng <dem...@redhat.com <mailto:
> dem...@redhat.com>>
> >     ---
> >       qga/commands-posix.c | 135
> +++++++++++++++++++++++++++++++++++++++++++
> >       qga/commands-win32.c |   6 ++
> >       qga/qapi-schema.json |  71 +++++++++++++++++++++++
> >       3 files changed, 212 insertions(+)
> >
> >     diff --git a/qga/commands-posix.c b/qga/commands-posix.c
> >     index 7f05996495..b85b3937bf 100644
> >     --- a/qga/commands-posix.c
> >     +++ b/qga/commands-posix.c
> >     @@ -2708,6 +2708,135 @@ GuestCpuStatsList
> >     *qmp_guest_get_cpustats(Error **errp)
> >           return head;
> >       }
> >
> >     +static char *hexToIPAddress(const void *hexValue, int is_ipv6)
> >     +{
> >     +    if (is_ipv6) {
> >     +        char addr[INET6_ADDRSTRLEN];
> >     +        struct in6_addr in6;
> >     +        const char *hexStr = (const char *)hexValue;
> >     +        int i;
> >     +
> >     +        for (i = 0; i < 16; i++) {
> >     +            sscanf(&hexStr[i * 2], "%02hhx", &in6.s6_addr[i]);
> >     +        }
> >     +        inet_ntop(AF_INET6, &in6, addr, INET6_ADDRSTRLEN);
> >     +
> >     +        return g_strdup(addr);
> >     +    } else {
> >     +        unsigned int hexInt = *(unsigned int *)hexValue;
> >     +        unsigned int byte1 = (hexInt >> 24) & 0xFF;
> >     +        unsigned int byte2 = (hexInt >> 16) & 0xFF;
> >     +        unsigned int byte3 = (hexInt >> 8) & 0xFF;
> >     +        unsigned int byte4 = hexInt & 0xFF;
> >     +
> >     +        return g_strdup_printf("%u.%u.%u.%u", byte4, byte3, byte2,
> >     byte1);
> >     +    }
> >     +}
> >     +
> >     +GuestNetworkRouteList *qmp_guest_network_get_route(Error **errp)
> >     +{
> >     +    GuestNetworkRouteList *head = NULL, **tail = &head;
> >     +    const char *routeFiles[] = {"/proc/net/route",
> >     "/proc/net/ipv6_route"};
> >     +    FILE *fp;
> >     +    size_t n;
> >     +    char *line = NULL;
> >     +    int firstLine;
> >     +    int is_ipv6;
> >     +    int i;
> >     +
> >     +    for (i = 0; i < 2; i++) {
> >     +        firstLine = 1;
> >     +        is_ipv6 = (i == 1);
> >     +        fp = fopen(routeFiles[i], "r");
> >     +        if (fp == NULL) {
> >     +            error_setg_errno(errp, errno, "open(\"%s\")",
> >     routeFiles[i]);
> >     +            free(line);
> >     +            continue;
> >     +        }
> >     +
> >     +        while (getline(&line, &n, fp) != -1) {
> >     +            if (firstLine && !is_ipv6) {
> >     +                firstLine = 0;
> >     +                continue;
> >     +            }
> >     +            GuestNetworkRoute *route = NULL;
> >     +            GuestNetworkRoute *networkroute;
> >     +            char Iface[IFNAMSIZ];
> >     +            if (is_ipv6) {
> >     +                char Destination[33], Source[33], NextHop[33];
> >     +                int DesPrefixlen, SrcPrefixlen, Metric, RefCnt,
> >     Use, Flags;
> >     +
> >     +                /* Parse the line and extract the values */
> >     +                if (sscanf(line, "%32s %x %32s %x %32s %x %x %x %x
> >     %32s",
> >     +                           Destination, &DesPrefixlen, Source,
> >     +                           &SrcPrefixlen, NextHop, &Metric, &RefCnt,
> >     +                           &Use, &Flags, Iface) != 10) {
> >     +                    continue;
> >     +                }
> >     +
> >     +                route = g_new0(GuestNetworkRoute, 1);
> >     +                networkroute = route;
> >     +                networkroute->iface = g_strdup(Iface);
> >     +                networkroute->destination =
> >     hexToIPAddress(Destination, 1);
> >     +                networkroute->metric = Metric;
> >     +                networkroute->source = hexToIPAddress(Source, 1);
> >     +                networkroute->desprefixlen = g_strdup_printf(
> >     +                    "%d", DesPrefixlen
> >     +                );
> >     +                networkroute->srcprefixlen = g_strdup_printf(
> >     +                    "%d", SrcPrefixlen
> >     +                );
> >     +                networkroute->nexthop = hexToIPAddress(NextHop, 1);
> >     +                networkroute->has_flags = true;
> >     +                networkroute->flags = Flags;
> >     +                networkroute->has_refcnt = true;
> >     +                networkroute->refcnt = RefCnt;
> >     +                networkroute->has_use = true;
> >     +                networkroute->use = Use;
> >     +                networkroute->version = 6;
> >     +            } else {
> >     +                unsigned int Destination, Gateway, Mask, Flags;
> >     +                int RefCnt, Use, Metric, MTU, Window, IRTT;
> >     +
> >     +                /* Parse the line and extract the values */
> >     +                if (sscanf(line, "%s %X %X %x %d %d %d %X %d %d %d",
> >     +                           Iface, &Destination, &Gateway, &Flags,
> >     &RefCnt,
> >     +                           &Use, &Metric, &Mask, &MTU, &Window,
> >     &IRTT) != 11) {
> >     +                    continue;
> >     +                }
> >     +
> >     +                route = g_new0(GuestNetworkRoute, 1);
> >     +                networkroute = route;
> >     +                networkroute->iface = g_strdup(Iface);
> >     +                networkroute->destination =
> >     hexToIPAddress(&Destination, 0);
> >     +                networkroute->gateway = hexToIPAddress(&Gateway, 0);
> >     +                networkroute->mask = hexToIPAddress(&Mask, 0);
> >     +                networkroute->metric = Metric;
> >     +                networkroute->has_flags = true;
> >     +                networkroute->flags = Flags;
> >     +                networkroute->has_refcnt = true;
> >     +                networkroute->refcnt = RefCnt;
> >     +                networkroute->has_use = true;
> >     +                networkroute->use = Use;
> >     +                networkroute->has_mtu = true;
> >     +                networkroute->mtu = MTU;
> >     +                networkroute->has_window = true;
> >     +                networkroute->window = Window;
> >     +                networkroute->has_irtt = true;
> >     +                networkroute->irtt = IRTT;
> >     +                networkroute->version = 4;
> >     +            }
> >     +
> >     +            QAPI_LIST_APPEND(tail, route);
> >     +        }
> >     +
> >     +        free(line);
> >     +        fclose(fp);
> >     +    }
> >     +
> >     +    return head;
> >     +}
> >     +
> >       #else /* defined(__linux__) */
> >
> >       void qmp_guest_suspend_disk(Error **errp)
> >     @@ -3079,6 +3208,12 @@ GuestCpuStatsList
> >     *qmp_guest_get_cpustats(Error **errp)
> >           return NULL;
> >       }
> >
> >     +GuestNetworkRouteList *qmp_guest_network_get_route(Error **errp)
> >     +{
> >     +    error_setg(errp, QERR_UNSUPPORTED);
> >     +    return NULL;
> >     +}
> >     +
> >       #endif /* CONFIG_FSFREEZE */
> >
> >       #if !defined(CONFIG_FSTRIM)
> >     diff --git a/qga/commands-win32.c b/qga/commands-win32.c
> >     index 0d1b836e87..91289bc9ab 100644
> >     --- a/qga/commands-win32.c
> >     +++ b/qga/commands-win32.c
> >     @@ -2517,3 +2517,9 @@ GuestCpuStatsList
> >     *qmp_guest_get_cpustats(Error **errp)
> >           error_setg(errp, QERR_UNSUPPORTED);
> >           return NULL;
> >       }
> >     +
> >     +GuestNetworkRouteList *qmp_guest_network_get_route(Error **errp)
> >     +{
> >     +    error_setg(errp, QERR_UNSUPPORTED);
> >     +    return NULL;
> >     +}
> >     diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json
> >     index b3de1fb6b3..1c2ee9f3c6 100644
> >     --- a/qga/qapi-schema.json
> >     +++ b/qga/qapi-schema.json
> >     @@ -1800,3 +1800,74 @@
> >       { 'command': 'guest-get-cpustats',
> >         'returns': ['GuestCpuStats']
> >       }
> >     +
> >     +##
> >     +# @GuestNetworkRoute:
> >     +#
> >     +# Route information, currently, only linux supported.
> >     +#
> >     +# @iface: The destination network or host's egress network
> >     interface in the routing table
> >     +#
> >     +# @destination: The IP address of the target network or host, The
> >     final destination of the packet
> >     +#
> >     +# @metric: Route metric
> >     +#
> >     +# @gateway: The IP address of the next hop router
> >     +#
> >     +# @mask: Subnet Mask (IPv4 only)
> >     +#
> >     +# @irtt: Initial round-trip delay (not for windows, IPv4 only)
> >     +#
> >     +# @flags: Route flags (not for windows)
> >     +#
> >     +# @refcnt: The route's reference count (not for windows)
> >     +#
> >     +# @use: Route usage count (not for windows)
> >     +#
> >     +# @window: TCP window size, used for flow control (not for windows,
> >     IPv4 only)
> >     +#
> >     +# @mtu: Data link layer maximum packet size (not for windows)
> >     +#
> >     +# @desprefixlen: Destination prefix length (for IPv6)
> >     +#
> >     +# @source: Source IP address (for IPv6)
> >     +#
> >     +# @srcprefixlen: Source prefix length (for IPv6)
> >     +#
> >     +# @nexthop: Next hop IP address (for IPv6)
> >     +#
> >     +# @version: IP version (4 or 6)
> >     +#
> >     +# Since: 9.1
> >     +
> >     +##
> >     +{ 'struct': 'GuestNetworkRoute',
> >     +  'data': {'iface': 'str',
> >     +           'destination': 'str',
> >     +           'metric': 'int',
> >     +           '*gateway': 'str',
> >     +           '*mask': 'str',
> >     +           '*irtt': 'int',
> >     +           '*flags': 'uint64',
> >     +           '*refcnt': 'int',
> >     +           '*use': 'int',
> >     +           '*window': 'int',
> >     +           '*mtu': 'int',
> >     +           '*desprefixlen': 'str',
> >     +           '*source': 'str',
> >     +           '*srcprefixlen': 'str',
> >     +           '*nexthop': 'str',
> >     +           'version': 'int'
> >     +           }}
> >     +
> >     +##
> >     +# @guest-network-get-route:
> >     +#
> >     +# Retrieve information about route of network.
> >     +# Returns: List of route info of guest.
> >     +#
> >     +# Since: 9.1
> >     +##
> >     +{ 'command': 'guest-network-get-route',
> >     +  'returns': ['GuestNetworkRoute']
> >     +}
> >     --
> >     2.40.1
> >
>
>

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