root / qemu-config.c @ 4b1b1c89
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#include "qemu-common.h" |
---|---|
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#include "qemu-error.h" |
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#include "qemu-option.h" |
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#include "qemu-config.h" |
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#include "hw/qdev.h" |
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#include "error.h" |
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|
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static QemuOptsList qemu_drive_opts = {
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.name = "drive",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head), |
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.desc = { |
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{ |
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.name = "bus",
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.type = QEMU_OPT_NUMBER, |
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.help = "bus number",
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},{ |
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.name = "unit",
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.type = QEMU_OPT_NUMBER, |
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.help = "unit number (i.e. lun for scsi)",
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},{ |
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.name = "if",
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.type = QEMU_OPT_STRING, |
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.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
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},{ |
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.name = "index",
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.type = QEMU_OPT_NUMBER, |
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.help = "index number",
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},{ |
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.name = "cyls",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of cylinders (ide disk geometry)",
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},{ |
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.name = "heads",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of heads (ide disk geometry)",
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},{ |
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.name = "secs",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of sectors (ide disk geometry)",
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},{ |
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.name = "trans",
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.type = QEMU_OPT_STRING, |
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.help = "chs translation (auto, lba. none)",
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},{ |
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.name = "media",
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.type = QEMU_OPT_STRING, |
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.help = "media type (disk, cdrom)",
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},{ |
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.name = "snapshot",
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.type = QEMU_OPT_BOOL, |
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.help = "enable/disable snapshot mode",
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},{ |
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.name = "file",
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.type = QEMU_OPT_STRING, |
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.help = "disk image",
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},{ |
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.name = "cache",
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.type = QEMU_OPT_STRING, |
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.help = "host cache usage (none, writeback, writethrough, "
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"directsync, unsafe)",
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},{ |
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.name = "aio",
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.type = QEMU_OPT_STRING, |
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.help = "host AIO implementation (threads, native)",
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},{ |
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.name = "format",
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.type = QEMU_OPT_STRING, |
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.help = "disk format (raw, qcow2, ...)",
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},{ |
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.name = "serial",
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.type = QEMU_OPT_STRING, |
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.help = "disk serial number",
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},{ |
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.name = "rerror",
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.type = QEMU_OPT_STRING, |
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.help = "read error action",
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},{ |
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.name = "werror",
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.type = QEMU_OPT_STRING, |
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.help = "write error action",
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},{ |
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.name = "addr",
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.type = QEMU_OPT_STRING, |
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.help = "pci address (virtio only)",
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},{ |
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.name = "readonly",
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.type = QEMU_OPT_BOOL, |
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.help = "open drive file as read-only",
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},{ |
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.name = "iops",
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.type = QEMU_OPT_NUMBER, |
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.help = "limit total I/O operations per second",
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},{ |
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.name = "iops_rd",
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.type = QEMU_OPT_NUMBER, |
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.help = "limit read operations per second",
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},{ |
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.name = "iops_wr",
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.type = QEMU_OPT_NUMBER, |
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.help = "limit write operations per second",
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},{ |
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.name = "bps",
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.type = QEMU_OPT_NUMBER, |
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.help = "limit total bytes per second",
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},{ |
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.name = "bps_rd",
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.type = QEMU_OPT_NUMBER, |
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.help = "limit read bytes per second",
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},{ |
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.name = "bps_wr",
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.type = QEMU_OPT_NUMBER, |
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.help = "limit write bytes per second",
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},{ |
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.name = "copy-on-read",
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.type = QEMU_OPT_BOOL, |
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.help = "copy read data from backing file into image file",
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}, |
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{ /* end of list */ }
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}, |
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}; |
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static QemuOptsList qemu_iscsi_opts = {
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.name = "iscsi",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head), |
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.desc = { |
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{ |
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.name = "user",
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.type = QEMU_OPT_STRING, |
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.help = "username for CHAP authentication to target",
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},{ |
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.name = "password",
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.type = QEMU_OPT_STRING, |
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.help = "password for CHAP authentication to target",
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},{ |
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.name = "header-digest",
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.type = QEMU_OPT_STRING, |
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.help = "HeaderDigest setting. "
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"{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}",
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},{ |
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.name = "initiator-name",
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.type = QEMU_OPT_STRING, |
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.help = "Initiator iqn name to use when connecting",
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}, |
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{ /* end of list */ }
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}, |
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}; |
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|
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static QemuOptsList qemu_chardev_opts = {
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.name = "chardev",
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.implied_opt_name = "backend",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
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.desc = { |
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{ |
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.name = "backend",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "path",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "host",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "port",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "localaddr",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "localport",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "to",
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "ipv4",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "ipv6",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "wait",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "server",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "delay",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "telnet",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "width",
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "height",
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "cols",
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "rows",
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "mux",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "signal",
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.type = QEMU_OPT_BOOL, |
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},{ |
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.name = "name",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "debug",
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.type = QEMU_OPT_NUMBER, |
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}, |
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{ /* end of list */ }
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}, |
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}; |
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|
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QemuOptsList qemu_fsdev_opts = { |
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.name = "fsdev",
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.implied_opt_name = "fsdriver",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head), |
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.desc = { |
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{ |
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.name = "fsdriver",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "path",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "security_model",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "writeout",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "readonly",
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.type = QEMU_OPT_BOOL, |
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}, { |
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.name = "socket",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "sock_fd",
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.type = QEMU_OPT_NUMBER, |
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}, |
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{ /*End of list */ }
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}, |
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}; |
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QemuOptsList qemu_virtfs_opts = { |
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.name = "virtfs",
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.implied_opt_name = "fsdriver",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head), |
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.desc = { |
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{ |
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.name = "fsdriver",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "path",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "mount_tag",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "security_model",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "writeout",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "readonly",
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.type = QEMU_OPT_BOOL, |
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}, { |
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.name = "socket",
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "sock_fd",
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.type = QEMU_OPT_NUMBER, |
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}, |
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{ /*End of list */ }
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}, |
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}; |
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|
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static QemuOptsList qemu_device_opts = {
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.name = "device",
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.implied_opt_name = "driver",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), |
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.desc = { |
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/*
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* no elements => accept any
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* sanity checking will happen later
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* when setting device properties
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*/
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{ /* end of list */ }
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}, |
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}; |
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static QemuOptsList qemu_netdev_opts = {
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.name = "netdev",
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.implied_opt_name = "type",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), |
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.desc = { |
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/*
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* no elements => accept any params
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* validation will happen later
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*/
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{ /* end of list */ }
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}, |
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}; |
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|
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static QemuOptsList qemu_net_opts = {
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.name = "net",
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.implied_opt_name = "type",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), |
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.desc = { |
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/*
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* no elements => accept any params
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* validation will happen later
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*/
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{ /* end of list */ }
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}, |
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}; |
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|
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static QemuOptsList qemu_rtc_opts = {
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.name = "rtc",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), |
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.desc = { |
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{ |
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.name = "base",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "clock",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "driftfix",
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.type = QEMU_OPT_STRING, |
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}, |
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{ /* end of list */ }
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}, |
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}; |
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|
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static QemuOptsList qemu_global_opts = {
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.name = "global",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), |
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.desc = { |
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{ |
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.name = "driver",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "property",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "value",
|
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.type = QEMU_OPT_STRING, |
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}, |
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{ /* end of list */ }
|
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}, |
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}; |
364 |
|
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static QemuOptsList qemu_mon_opts = {
|
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.name = "mon",
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.implied_opt_name = "chardev",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head), |
369 |
.desc = { |
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{ |
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.name = "mode",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "chardev",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "default",
|
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.type = QEMU_OPT_BOOL, |
379 |
},{ |
380 |
.name = "pretty",
|
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.type = QEMU_OPT_BOOL, |
382 |
}, |
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{ /* end of list */ }
|
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}, |
385 |
}; |
386 |
|
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static QemuOptsList qemu_trace_opts = {
|
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.name = "trace",
|
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.implied_opt_name = "trace",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head), |
391 |
.desc = { |
392 |
{ |
393 |
.name = "events",
|
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.type = QEMU_OPT_STRING, |
395 |
},{ |
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.name = "file",
|
397 |
.type = QEMU_OPT_STRING, |
398 |
}, |
399 |
{ /* end of list */ }
|
400 |
}, |
401 |
}; |
402 |
|
403 |
static QemuOptsList qemu_cpudef_opts = {
|
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.name = "cpudef",
|
405 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head), |
406 |
.desc = { |
407 |
{ |
408 |
.name = "name",
|
409 |
.type = QEMU_OPT_STRING, |
410 |
},{ |
411 |
.name = "level",
|
412 |
.type = QEMU_OPT_NUMBER, |
413 |
},{ |
414 |
.name = "vendor",
|
415 |
.type = QEMU_OPT_STRING, |
416 |
},{ |
417 |
.name = "family",
|
418 |
.type = QEMU_OPT_NUMBER, |
419 |
},{ |
420 |
.name = "model",
|
421 |
.type = QEMU_OPT_NUMBER, |
422 |
},{ |
423 |
.name = "stepping",
|
424 |
.type = QEMU_OPT_NUMBER, |
425 |
},{ |
426 |
.name = "feature_edx", /* cpuid 0000_0001.edx */ |
427 |
.type = QEMU_OPT_STRING, |
428 |
},{ |
429 |
.name = "feature_ecx", /* cpuid 0000_0001.ecx */ |
430 |
.type = QEMU_OPT_STRING, |
431 |
},{ |
432 |
.name = "extfeature_edx", /* cpuid 8000_0001.edx */ |
433 |
.type = QEMU_OPT_STRING, |
434 |
},{ |
435 |
.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */ |
436 |
.type = QEMU_OPT_STRING, |
437 |
},{ |
438 |
.name = "xlevel",
|
439 |
.type = QEMU_OPT_NUMBER, |
440 |
},{ |
441 |
.name = "model_id",
|
442 |
.type = QEMU_OPT_STRING, |
443 |
},{ |
444 |
.name = "vendor_override",
|
445 |
.type = QEMU_OPT_NUMBER, |
446 |
}, |
447 |
{ /* end of list */ }
|
448 |
}, |
449 |
}; |
450 |
|
451 |
QemuOptsList qemu_spice_opts = { |
452 |
.name = "spice",
|
453 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head), |
454 |
.desc = { |
455 |
{ |
456 |
.name = "port",
|
457 |
.type = QEMU_OPT_NUMBER, |
458 |
},{ |
459 |
.name = "tls-port",
|
460 |
.type = QEMU_OPT_NUMBER, |
461 |
},{ |
462 |
.name = "addr",
|
463 |
.type = QEMU_OPT_STRING, |
464 |
},{ |
465 |
.name = "ipv4",
|
466 |
.type = QEMU_OPT_BOOL, |
467 |
},{ |
468 |
.name = "ipv6",
|
469 |
.type = QEMU_OPT_BOOL, |
470 |
},{ |
471 |
.name = "password",
|
472 |
.type = QEMU_OPT_STRING, |
473 |
},{ |
474 |
.name = "disable-ticketing",
|
475 |
.type = QEMU_OPT_BOOL, |
476 |
},{ |
477 |
.name = "disable-copy-paste",
|
478 |
.type = QEMU_OPT_BOOL, |
479 |
},{ |
480 |
.name = "sasl",
|
481 |
.type = QEMU_OPT_BOOL, |
482 |
},{ |
483 |
.name = "x509-dir",
|
484 |
.type = QEMU_OPT_STRING, |
485 |
},{ |
486 |
.name = "x509-key-file",
|
487 |
.type = QEMU_OPT_STRING, |
488 |
},{ |
489 |
.name = "x509-key-password",
|
490 |
.type = QEMU_OPT_STRING, |
491 |
},{ |
492 |
.name = "x509-cert-file",
|
493 |
.type = QEMU_OPT_STRING, |
494 |
},{ |
495 |
.name = "x509-cacert-file",
|
496 |
.type = QEMU_OPT_STRING, |
497 |
},{ |
498 |
.name = "x509-dh-key-file",
|
499 |
.type = QEMU_OPT_STRING, |
500 |
},{ |
501 |
.name = "tls-ciphers",
|
502 |
.type = QEMU_OPT_STRING, |
503 |
},{ |
504 |
.name = "tls-channel",
|
505 |
.type = QEMU_OPT_STRING, |
506 |
},{ |
507 |
.name = "plaintext-channel",
|
508 |
.type = QEMU_OPT_STRING, |
509 |
},{ |
510 |
.name = "image-compression",
|
511 |
.type = QEMU_OPT_STRING, |
512 |
},{ |
513 |
.name = "jpeg-wan-compression",
|
514 |
.type = QEMU_OPT_STRING, |
515 |
},{ |
516 |
.name = "zlib-glz-wan-compression",
|
517 |
.type = QEMU_OPT_STRING, |
518 |
},{ |
519 |
.name = "streaming-video",
|
520 |
.type = QEMU_OPT_STRING, |
521 |
},{ |
522 |
.name = "agent-mouse",
|
523 |
.type = QEMU_OPT_BOOL, |
524 |
},{ |
525 |
.name = "playback-compression",
|
526 |
.type = QEMU_OPT_BOOL, |
527 |
}, |
528 |
{ /* end of list */ }
|
529 |
}, |
530 |
}; |
531 |
|
532 |
QemuOptsList qemu_option_rom_opts = { |
533 |
.name = "option-rom",
|
534 |
.implied_opt_name = "romfile",
|
535 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), |
536 |
.desc = { |
537 |
{ |
538 |
.name = "bootindex",
|
539 |
.type = QEMU_OPT_NUMBER, |
540 |
}, { |
541 |
.name = "romfile",
|
542 |
.type = QEMU_OPT_STRING, |
543 |
}, |
544 |
{ /* end of list */ }
|
545 |
}, |
546 |
}; |
547 |
|
548 |
static QemuOptsList qemu_machine_opts = {
|
549 |
.name = "machine",
|
550 |
.implied_opt_name = "type",
|
551 |
.merge_lists = true,
|
552 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head), |
553 |
.desc = { |
554 |
{ |
555 |
.name = "type",
|
556 |
.type = QEMU_OPT_STRING, |
557 |
.help = "emulated machine"
|
558 |
}, { |
559 |
.name = "accel",
|
560 |
.type = QEMU_OPT_STRING, |
561 |
.help = "accelerator list",
|
562 |
}, { |
563 |
.name = "kernel_irqchip",
|
564 |
.type = QEMU_OPT_BOOL, |
565 |
.help = "use KVM in-kernel irqchip",
|
566 |
}, { |
567 |
.name = "kvm_shadow_mem",
|
568 |
.type = QEMU_OPT_SIZE, |
569 |
.help = "KVM shadow MMU size",
|
570 |
}, { |
571 |
.name = "kernel",
|
572 |
.type = QEMU_OPT_STRING, |
573 |
.help = "Linux kernel image file",
|
574 |
}, { |
575 |
.name = "initrd",
|
576 |
.type = QEMU_OPT_STRING, |
577 |
.help = "Linux initial ramdisk file",
|
578 |
}, { |
579 |
.name = "append",
|
580 |
.type = QEMU_OPT_STRING, |
581 |
.help = "Linux kernel command line",
|
582 |
}, { |
583 |
.name = "dtb",
|
584 |
.type = QEMU_OPT_STRING, |
585 |
.help = "Linux kernel device tree file",
|
586 |
}, { |
587 |
.name = "dumpdtb",
|
588 |
.type = QEMU_OPT_STRING, |
589 |
.help = "Dump current dtb to a file and quit",
|
590 |
}, { |
591 |
.name = "phandle_start",
|
592 |
.type = QEMU_OPT_STRING, |
593 |
.help = "The first phandle ID we may generate dynamically",
|
594 |
}, |
595 |
{ /* End of list */ }
|
596 |
}, |
597 |
}; |
598 |
|
599 |
QemuOptsList qemu_boot_opts = { |
600 |
.name = "boot-opts",
|
601 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), |
602 |
.desc = { |
603 |
/* the three names below are not used now */
|
604 |
{ |
605 |
.name = "order",
|
606 |
.type = QEMU_OPT_STRING, |
607 |
}, { |
608 |
.name = "once",
|
609 |
.type = QEMU_OPT_STRING, |
610 |
}, { |
611 |
.name = "menu",
|
612 |
.type = QEMU_OPT_STRING, |
613 |
/* following are really used */
|
614 |
}, { |
615 |
.name = "splash",
|
616 |
.type = QEMU_OPT_STRING, |
617 |
}, { |
618 |
.name = "splash-time",
|
619 |
.type = QEMU_OPT_STRING, |
620 |
}, |
621 |
{ /*End of list */ }
|
622 |
}, |
623 |
}; |
624 |
|
625 |
static QemuOptsList *vm_config_groups[32] = { |
626 |
&qemu_drive_opts, |
627 |
&qemu_chardev_opts, |
628 |
&qemu_device_opts, |
629 |
&qemu_netdev_opts, |
630 |
&qemu_net_opts, |
631 |
&qemu_rtc_opts, |
632 |
&qemu_global_opts, |
633 |
&qemu_mon_opts, |
634 |
&qemu_cpudef_opts, |
635 |
&qemu_trace_opts, |
636 |
&qemu_option_rom_opts, |
637 |
&qemu_machine_opts, |
638 |
&qemu_boot_opts, |
639 |
&qemu_iscsi_opts, |
640 |
NULL,
|
641 |
}; |
642 |
|
643 |
static QemuOptsList *find_list(QemuOptsList **lists, const char *group, |
644 |
Error **errp) |
645 |
{ |
646 |
int i;
|
647 |
|
648 |
for (i = 0; lists[i] != NULL; i++) { |
649 |
if (strcmp(lists[i]->name, group) == 0) |
650 |
break;
|
651 |
} |
652 |
if (lists[i] == NULL) { |
653 |
error_set(errp, QERR_INVALID_OPTION_GROUP, group); |
654 |
} |
655 |
return lists[i];
|
656 |
} |
657 |
|
658 |
QemuOptsList *qemu_find_opts(const char *group) |
659 |
{ |
660 |
QemuOptsList *ret; |
661 |
Error *local_err = NULL;
|
662 |
|
663 |
ret = find_list(vm_config_groups, group, &local_err); |
664 |
if (error_is_set(&local_err)) {
|
665 |
error_report("%s\n", error_get_pretty(local_err));
|
666 |
error_free(local_err); |
667 |
} |
668 |
|
669 |
return ret;
|
670 |
} |
671 |
|
672 |
QemuOptsList *qemu_find_opts_err(const char *group, Error **errp) |
673 |
{ |
674 |
return find_list(vm_config_groups, group, errp);
|
675 |
} |
676 |
|
677 |
void qemu_add_opts(QemuOptsList *list)
|
678 |
{ |
679 |
int entries, i;
|
680 |
|
681 |
entries = ARRAY_SIZE(vm_config_groups); |
682 |
entries--; /* keep list NULL terminated */
|
683 |
for (i = 0; i < entries; i++) { |
684 |
if (vm_config_groups[i] == NULL) { |
685 |
vm_config_groups[i] = list; |
686 |
return;
|
687 |
} |
688 |
} |
689 |
fprintf(stderr, "ran out of space in vm_config_groups");
|
690 |
abort(); |
691 |
} |
692 |
|
693 |
int qemu_set_option(const char *str) |
694 |
{ |
695 |
char group[64], id[64], arg[64]; |
696 |
QemuOptsList *list; |
697 |
QemuOpts *opts; |
698 |
int rc, offset;
|
699 |
|
700 |
rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
|
701 |
if (rc < 3 || str[offset] != '=') { |
702 |
error_report("can't parse: \"%s\"", str);
|
703 |
return -1; |
704 |
} |
705 |
|
706 |
list = qemu_find_opts(group); |
707 |
if (list == NULL) { |
708 |
return -1; |
709 |
} |
710 |
|
711 |
opts = qemu_opts_find(list, id); |
712 |
if (!opts) {
|
713 |
error_report("there is no %s \"%s\" defined",
|
714 |
list->name, id); |
715 |
return -1; |
716 |
} |
717 |
|
718 |
if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
719 |
return -1; |
720 |
} |
721 |
return 0; |
722 |
} |
723 |
|
724 |
int qemu_global_option(const char *str) |
725 |
{ |
726 |
char driver[64], property[64]; |
727 |
QemuOpts *opts; |
728 |
int rc, offset;
|
729 |
|
730 |
rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
731 |
if (rc < 2 || str[offset] != '=') { |
732 |
error_report("can't parse: \"%s\"", str);
|
733 |
return -1; |
734 |
} |
735 |
|
736 |
opts = qemu_opts_create(&qemu_global_opts, NULL, 0, NULL); |
737 |
qemu_opt_set(opts, "driver", driver);
|
738 |
qemu_opt_set(opts, "property", property);
|
739 |
qemu_opt_set(opts, "value", str+offset+1); |
740 |
return 0; |
741 |
} |
742 |
|
743 |
struct ConfigWriteData {
|
744 |
QemuOptsList *list; |
745 |
FILE *fp; |
746 |
}; |
747 |
|
748 |
static int config_write_opt(const char *name, const char *value, void *opaque) |
749 |
{ |
750 |
struct ConfigWriteData *data = opaque;
|
751 |
|
752 |
fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
753 |
return 0; |
754 |
} |
755 |
|
756 |
static int config_write_opts(QemuOpts *opts, void *opaque) |
757 |
{ |
758 |
struct ConfigWriteData *data = opaque;
|
759 |
const char *id = qemu_opts_id(opts); |
760 |
|
761 |
if (id) {
|
762 |
fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
763 |
} else {
|
764 |
fprintf(data->fp, "[%s]\n", data->list->name);
|
765 |
} |
766 |
qemu_opt_foreach(opts, config_write_opt, data, 0);
|
767 |
fprintf(data->fp, "\n");
|
768 |
return 0; |
769 |
} |
770 |
|
771 |
void qemu_config_write(FILE *fp)
|
772 |
{ |
773 |
struct ConfigWriteData data = { .fp = fp };
|
774 |
QemuOptsList **lists = vm_config_groups; |
775 |
int i;
|
776 |
|
777 |
fprintf(fp, "# qemu config file\n\n");
|
778 |
for (i = 0; lists[i] != NULL; i++) { |
779 |
data.list = lists[i]; |
780 |
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
781 |
} |
782 |
} |
783 |
|
784 |
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) |
785 |
{ |
786 |
char line[1024], group[64], id[64], arg[64], value[1024]; |
787 |
Location loc; |
788 |
QemuOptsList *list = NULL;
|
789 |
Error *local_err = NULL;
|
790 |
QemuOpts *opts = NULL;
|
791 |
int res = -1, lno = 0; |
792 |
|
793 |
loc_push_none(&loc); |
794 |
while (fgets(line, sizeof(line), fp) != NULL) { |
795 |
loc_set_file(fname, ++lno); |
796 |
if (line[0] == '\n') { |
797 |
/* skip empty lines */
|
798 |
continue;
|
799 |
} |
800 |
if (line[0] == '#') { |
801 |
/* comment */
|
802 |
continue;
|
803 |
} |
804 |
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
805 |
/* group with id */
|
806 |
list = find_list(lists, group, &local_err); |
807 |
if (error_is_set(&local_err)) {
|
808 |
error_report("%s\n", error_get_pretty(local_err));
|
809 |
error_free(local_err); |
810 |
goto out;
|
811 |
} |
812 |
opts = qemu_opts_create(list, id, 1, NULL); |
813 |
continue;
|
814 |
} |
815 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
816 |
/* group without id */
|
817 |
list = find_list(lists, group, &local_err); |
818 |
if (error_is_set(&local_err)) {
|
819 |
error_report("%s\n", error_get_pretty(local_err));
|
820 |
error_free(local_err); |
821 |
goto out;
|
822 |
} |
823 |
opts = qemu_opts_create(list, NULL, 0, NULL); |
824 |
continue;
|
825 |
} |
826 |
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
827 |
/* arg = value */
|
828 |
if (opts == NULL) { |
829 |
error_report("no group defined");
|
830 |
goto out;
|
831 |
} |
832 |
if (qemu_opt_set(opts, arg, value) != 0) { |
833 |
goto out;
|
834 |
} |
835 |
continue;
|
836 |
} |
837 |
error_report("parse error");
|
838 |
goto out;
|
839 |
} |
840 |
if (ferror(fp)) {
|
841 |
error_report("error reading file");
|
842 |
goto out;
|
843 |
} |
844 |
res = 0;
|
845 |
out:
|
846 |
loc_pop(&loc); |
847 |
return res;
|
848 |
} |
849 |
|
850 |
int qemu_read_config_file(const char *filename) |
851 |
{ |
852 |
FILE *f = fopen(filename, "r");
|
853 |
int ret;
|
854 |
|
855 |
if (f == NULL) { |
856 |
return -errno;
|
857 |
} |
858 |
|
859 |
ret = qemu_config_parse(f, vm_config_groups, filename); |
860 |
fclose(f); |
861 |
|
862 |
if (ret == 0) { |
863 |
return 0; |
864 |
} else {
|
865 |
return -EINVAL;
|
866 |
} |
867 |
} |