Archipelago » qemu

#include "qemu-common.h"

#include "qemu-option.h"

#include "qemu-config.h"

QemuOptsList qemu_drive_opts = {

    .name = "drive",

    .head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head),

    .desc = {

        {

            .name = "bus",

            .type = QEMU_OPT_NUMBER,

            .help = "bus number",

        },{

            .name = "unit",

            .type = QEMU_OPT_NUMBER,

            .help = "unit number (i.e. lun for scsi)",

        },{

            .name = "if",

            .type = QEMU_OPT_STRING,

            .help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",

        },{

            .name = "index",

            .type = QEMU_OPT_NUMBER,

        },{

            .name = "cyls",

            .type = QEMU_OPT_NUMBER,

            .help = "number of cylinders (ide disk geometry)",

        },{

            .name = "heads",

            .type = QEMU_OPT_NUMBER,

            .help = "number of heads (ide disk geometry)",

        },{

            .name = "secs",

            .type = QEMU_OPT_NUMBER,

            .help = "number of sectors (ide disk geometry)",

        },{

            .name = "trans",

            .type = QEMU_OPT_STRING,

            .help = "chs translation (auto, lba. none)",

        },{

            .name = "media",

            .type = QEMU_OPT_STRING,

            .help = "media type (disk, cdrom)",

        },{

            .name = "snapshot",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "file",

            .type = QEMU_OPT_STRING,

            .help = "disk image",

        },{

            .name = "cache",

            .type = QEMU_OPT_STRING,

            .help = "host cache usage (none, writeback, writethrough)",

        },{

            .name = "aio",

            .type = QEMU_OPT_STRING,

            .help = "host AIO implementation (threads, native)",

        },{

            .name = "format",

            .type = QEMU_OPT_STRING,

            .help = "disk format (raw, qcow2, ...)",

        },{

            .name = "serial",

            .type = QEMU_OPT_STRING,

        },{

            .name = "werror",

            .type = QEMU_OPT_STRING,

        },{

            .name = "addr",

            .type = QEMU_OPT_STRING,

            .help = "pci address (virtio only)",

        },

        { /* end if list */ }

    },

};

QemuOptsList qemu_chardev_opts = {

    .name = "chardev",

    .head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head),

    .desc = {

        {

            .name = "backend",

            .type = QEMU_OPT_STRING,

        },{

            .name = "path",

            .type = QEMU_OPT_STRING,

        },{

            .name = "host",

            .type = QEMU_OPT_STRING,

        },{

            .name = "port",

            .type = QEMU_OPT_STRING,

        },{

            .name = "localaddr",

            .type = QEMU_OPT_STRING,

        },{

            .name = "localport",

            .type = QEMU_OPT_STRING,

        },{

            .name = "to",

            .type = QEMU_OPT_NUMBER,

        },{

            .name = "ipv4",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "ipv6",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "wait",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "server",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "delay",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "telnet",

            .type = QEMU_OPT_BOOL,

        },{

            .name = "width",

            .type = QEMU_OPT_NUMBER,

        },{

            .name = "height",

            .type = QEMU_OPT_NUMBER,

        },{

            .name = "cols",

            .type = QEMU_OPT_NUMBER,

        },{

            .name = "rows",

            .type = QEMU_OPT_NUMBER,

        },{

            .name = "mux",

            .type = QEMU_OPT_BOOL,

        },

        { /* end if list */ }

    },

};

QemuOptsList qemu_device_opts = {

    .name = "device",

    .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head),

    .desc = {

        /*

         * no elements => accept any

         * sanity checking will happen later

         * when setting device properties

         */

        { /* end if list */ }

    },

};

static QemuOptsList *lists[] = {

    &qemu_drive_opts,

    &qemu_chardev_opts,

    &qemu_device_opts,

    NULL,

};

int qemu_set_option(const char *str)

{

    char group[64], id[64], arg[64];

    QemuOpts *opts;

    int i, rc, offset;

    rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);

    if (rc < 3 || str[offset] != '=') {

        fprintf(stderr, "can't parse: \"%s\"\n", str);

        return -1;

    }

    for (i = 0; lists[i] != NULL; i++) {

        if (strcmp(lists[i]->name, group) == 0)

            break;

    }

    if (lists[i] == NULL) {

        fprintf(stderr, "there is no option group \"%s\"\n", group);

        return -1;

    }

    opts = qemu_opts_find(lists[i], id);

    if (!opts) {

        fprintf(stderr, "there is no %s \"%s\" defined\n",

                lists[i]->name, id);

        return -1;

    }

    if (-1 == qemu_opt_set(opts, arg, str+offset+1)) {

        fprintf(stderr, "failed to set \"%s\" for %s \"%s\"\n",

                arg, lists[i]->name, id);

        return -1;

    }

    return 0;

}