#include "qemu-common.h" #include "qemu-error.h" #include "qemu-option.h" #include "qemu-config.h" #include "hw/qdev.h" static 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, .help = "index 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, .help = "enable/disable snapshot mode", },{ .name = "file", .type = QEMU_OPT_STRING, .help = "disk image", },{ .name = "cache", .type = QEMU_OPT_STRING, .help = "host cache usage (none, writeback, writethrough, " "directsync, unsafe)", },{ .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, .help = "disk serial number", },{ .name = "rerror", .type = QEMU_OPT_STRING, .help = "read error action", },{ .name = "werror", .type = QEMU_OPT_STRING, .help = "write error action", },{ .name = "addr", .type = QEMU_OPT_STRING, .help = "pci address (virtio only)", },{ .name = "readonly", .type = QEMU_OPT_BOOL, .help = "open drive file as read-only", },{ .name = "iops", .type = QEMU_OPT_NUMBER, .help = "limit total I/O operations per second", },{ .name = "iops_rd", .type = QEMU_OPT_NUMBER, .help = "limit read operations per second", },{ .name = "iops_wr", .type = QEMU_OPT_NUMBER, .help = "limit write operations per second", },{ .name = "bps", .type = QEMU_OPT_NUMBER, .help = "limit total bytes per second", },{ .name = "bps_rd", .type = QEMU_OPT_NUMBER, .help = "limit read bytes per second", },{ .name = "bps_wr", .type = QEMU_OPT_NUMBER, .help = "limit write bytes per second", },{ .name = "copy-on-read", .type = QEMU_OPT_BOOL, .help = "copy read data from backing file into image file", }, { /* end of list */ } }, }; static QemuOptsList qemu_iscsi_opts = { .name = "iscsi", .head = QTAILQ_HEAD_INITIALIZER(qemu_iscsi_opts.head), .desc = { { .name = "user", .type = QEMU_OPT_STRING, .help = "username for CHAP authentication to target", },{ .name = "password", .type = QEMU_OPT_STRING, .help = "password for CHAP authentication to target", },{ .name = "header-digest", .type = QEMU_OPT_STRING, .help = "HeaderDigest setting. " "{CRC32C|CRC32C-NONE|NONE-CRC32C|NONE}", },{ .name = "initiator-name", .type = QEMU_OPT_STRING, .help = "Initiator iqn name to use when connecting", }, { /* end of list */ } }, }; static QemuOptsList qemu_chardev_opts = { .name = "chardev", .implied_opt_name = "backend", .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, },{ .name = "signal", .type = QEMU_OPT_BOOL, },{ .name = "name", .type = QEMU_OPT_STRING, },{ .name = "debug", .type = QEMU_OPT_NUMBER, }, { /* end of list */ } }, }; QemuOptsList qemu_fsdev_opts = { .name = "fsdev", .implied_opt_name = "fsdriver", .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head), .desc = { { .name = "fsdriver", .type = QEMU_OPT_STRING, }, { .name = "path", .type = QEMU_OPT_STRING, }, { .name = "security_model", .type = QEMU_OPT_STRING, }, { .name = "writeout", .type = QEMU_OPT_STRING, }, { .name = "readonly", .type = QEMU_OPT_BOOL, }, { .name = "socket", .type = QEMU_OPT_STRING, }, { .name = "sock_fd", .type = QEMU_OPT_NUMBER, }, { /*End of list */ } }, }; QemuOptsList qemu_virtfs_opts = { .name = "virtfs", .implied_opt_name = "fsdriver", .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head), .desc = { { .name = "fsdriver", .type = QEMU_OPT_STRING, }, { .name = "path", .type = QEMU_OPT_STRING, }, { .name = "mount_tag", .type = QEMU_OPT_STRING, }, { .name = "security_model", .type = QEMU_OPT_STRING, }, { .name = "writeout", .type = QEMU_OPT_STRING, }, { .name = "readonly", .type = QEMU_OPT_BOOL, }, { .name = "socket", .type = QEMU_OPT_STRING, }, { .name = "sock_fd", .type = QEMU_OPT_NUMBER, }, { /*End of list */ } }, }; static QemuOptsList qemu_device_opts = { .name = "device", .implied_opt_name = "driver", .head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), .desc = { /* * no elements => accept any * sanity checking will happen later * when setting device properties */ { /* end of list */ } }, }; static QemuOptsList qemu_netdev_opts = { .name = "netdev", .implied_opt_name = "type", .head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), .desc = { /* * no elements => accept any params * validation will happen later */ { /* end of list */ } }, }; static QemuOptsList qemu_net_opts = { .name = "net", .implied_opt_name = "type", .head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), .desc = { /* * no elements => accept any params * validation will happen later */ { /* end of list */ } }, }; static QemuOptsList qemu_rtc_opts = { .name = "rtc", .head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), .desc = { { .name = "base", .type = QEMU_OPT_STRING, },{ .name = "clock", .type = QEMU_OPT_STRING, },{ .name = "driftfix", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; static QemuOptsList qemu_global_opts = { .name = "global", .head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), .desc = { { .name = "driver", .type = QEMU_OPT_STRING, },{ .name = "property", .type = QEMU_OPT_STRING, },{ .name = "value", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; static QemuOptsList qemu_mon_opts = { .name = "mon", .implied_opt_name = "chardev", .head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head), .desc = { { .name = "mode", .type = QEMU_OPT_STRING, },{ .name = "chardev", .type = QEMU_OPT_STRING, },{ .name = "default", .type = QEMU_OPT_BOOL, },{ .name = "pretty", .type = QEMU_OPT_BOOL, }, { /* end of list */ } }, }; static QemuOptsList qemu_trace_opts = { .name = "trace", .implied_opt_name = "trace", .head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head), .desc = { { .name = "events", .type = QEMU_OPT_STRING, },{ .name = "file", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; static QemuOptsList qemu_cpudef_opts = { .name = "cpudef", .head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head), .desc = { { .name = "name", .type = QEMU_OPT_STRING, },{ .name = "level", .type = QEMU_OPT_NUMBER, },{ .name = "vendor", .type = QEMU_OPT_STRING, },{ .name = "family", .type = QEMU_OPT_NUMBER, },{ .name = "model", .type = QEMU_OPT_NUMBER, },{ .name = "stepping", .type = QEMU_OPT_NUMBER, },{ .name = "feature_edx", /* cpuid 0000_0001.edx */ .type = QEMU_OPT_STRING, },{ .name = "feature_ecx", /* cpuid 0000_0001.ecx */ .type = QEMU_OPT_STRING, },{ .name = "extfeature_edx", /* cpuid 8000_0001.edx */ .type = QEMU_OPT_STRING, },{ .name = "extfeature_ecx", /* cpuid 8000_0001.ecx */ .type = QEMU_OPT_STRING, },{ .name = "xlevel", .type = QEMU_OPT_NUMBER, },{ .name = "model_id", .type = QEMU_OPT_STRING, },{ .name = "vendor_override", .type = QEMU_OPT_NUMBER, }, { /* end of list */ } }, }; QemuOptsList qemu_spice_opts = { .name = "spice", .head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head), .desc = { { .name = "port", .type = QEMU_OPT_NUMBER, },{ .name = "tls-port", .type = QEMU_OPT_NUMBER, },{ .name = "addr", .type = QEMU_OPT_STRING, },{ .name = "ipv4", .type = QEMU_OPT_BOOL, },{ .name = "ipv6", .type = QEMU_OPT_BOOL, },{ .name = "password", .type = QEMU_OPT_STRING, },{ .name = "disable-ticketing", .type = QEMU_OPT_BOOL, },{ .name = "disable-copy-paste", .type = QEMU_OPT_BOOL, },{ .name = "sasl", .type = QEMU_OPT_BOOL, },{ .name = "x509-dir", .type = QEMU_OPT_STRING, },{ .name = "x509-key-file", .type = QEMU_OPT_STRING, },{ .name = "x509-key-password", .type = QEMU_OPT_STRING, },{ .name = "x509-cert-file", .type = QEMU_OPT_STRING, },{ .name = "x509-cacert-file", .type = QEMU_OPT_STRING, },{ .name = "x509-dh-key-file", .type = QEMU_OPT_STRING, },{ .name = "tls-ciphers", .type = QEMU_OPT_STRING, },{ .name = "tls-channel", .type = QEMU_OPT_STRING, },{ .name = "plaintext-channel", .type = QEMU_OPT_STRING, },{ .name = "image-compression", .type = QEMU_OPT_STRING, },{ .name = "jpeg-wan-compression", .type = QEMU_OPT_STRING, },{ .name = "zlib-glz-wan-compression", .type = QEMU_OPT_STRING, },{ .name = "streaming-video", .type = QEMU_OPT_STRING, },{ .name = "agent-mouse", .type = QEMU_OPT_BOOL, },{ .name = "playback-compression", .type = QEMU_OPT_BOOL, }, { /* end of list */ } }, }; QemuOptsList qemu_option_rom_opts = { .name = "option-rom", .implied_opt_name = "romfile", .head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), .desc = { { .name = "bootindex", .type = QEMU_OPT_NUMBER, }, { .name = "romfile", .type = QEMU_OPT_STRING, }, { /* end of list */ } }, }; static QemuOptsList qemu_machine_opts = { .name = "machine", .implied_opt_name = "type", .head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head), .desc = { { .name = "type", .type = QEMU_OPT_STRING, .help = "emulated machine" }, { .name = "accel", .type = QEMU_OPT_STRING, .help = "accelerator list", }, { .name = "kernel_irqchip", .type = QEMU_OPT_BOOL, .help = "use KVM in-kernel irqchip", }, { /* End of list */ } }, }; QemuOptsList qemu_boot_opts = { .name = "boot-opts", .head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), .desc = { /* the three names below are not used now */ { .name = "order", .type = QEMU_OPT_STRING, }, { .name = "once", .type = QEMU_OPT_STRING, }, { .name = "menu", .type = QEMU_OPT_STRING, /* following are really used */ }, { .name = "splash", .type = QEMU_OPT_STRING, }, { .name = "splash-time", .type = QEMU_OPT_STRING, }, { /*End of list */ } }, }; static QemuOptsList *vm_config_groups[32] = { &qemu_drive_opts, &qemu_chardev_opts, &qemu_device_opts, &qemu_netdev_opts, &qemu_net_opts, &qemu_rtc_opts, &qemu_global_opts, &qemu_mon_opts, &qemu_cpudef_opts, &qemu_trace_opts, &qemu_option_rom_opts, &qemu_machine_opts, &qemu_boot_opts, &qemu_iscsi_opts, NULL, }; static QemuOptsList *find_list(QemuOptsList **lists, const char *group) { int i; for (i = 0; lists[i] != NULL; i++) { if (strcmp(lists[i]->name, group) == 0) break; } if (lists[i] == NULL) { error_report("there is no option group \"%s\"", group); } return lists[i]; } QemuOptsList *qemu_find_opts(const char *group) { return find_list(vm_config_groups, group); } void qemu_add_opts(QemuOptsList *list) { int entries, i; entries = ARRAY_SIZE(vm_config_groups); entries--; /* keep list NULL terminated */ for (i = 0; i < entries; i++) { if (vm_config_groups[i] == NULL) { vm_config_groups[i] = list; return; } } fprintf(stderr, "ran out of space in vm_config_groups"); abort(); } int qemu_set_option(const char *str) { char group[64], id[64], arg[64]; QemuOptsList *list; QemuOpts *opts; int rc, offset; rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset); if (rc < 3 || str[offset] != '=') { error_report("can't parse: \"%s\"", str); return -1; } list = qemu_find_opts(group); if (list == NULL) { return -1; } opts = qemu_opts_find(list, id); if (!opts) { error_report("there is no %s \"%s\" defined", list->name, id); return -1; } if (qemu_opt_set(opts, arg, str+offset+1) == -1) { return -1; } return 0; } int qemu_global_option(const char *str) { char driver[64], property[64]; QemuOpts *opts; int rc, offset; rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset); if (rc < 2 || str[offset] != '=') { error_report("can't parse: \"%s\"", str); return -1; } opts = qemu_opts_create(&qemu_global_opts, NULL, 0); qemu_opt_set(opts, "driver", driver); qemu_opt_set(opts, "property", property); qemu_opt_set(opts, "value", str+offset+1); return 0; } struct ConfigWriteData { QemuOptsList *list; FILE *fp; }; static int config_write_opt(const char *name, const char *value, void *opaque) { struct ConfigWriteData *data = opaque; fprintf(data->fp, " %s = \"%s\"\n", name, value); return 0; } static int config_write_opts(QemuOpts *opts, void *opaque) { struct ConfigWriteData *data = opaque; const char *id = qemu_opts_id(opts); if (id) { fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id); } else { fprintf(data->fp, "[%s]\n", data->list->name); } qemu_opt_foreach(opts, config_write_opt, data, 0); fprintf(data->fp, "\n"); return 0; } void qemu_config_write(FILE *fp) { struct ConfigWriteData data = { .fp = fp }; QemuOptsList **lists = vm_config_groups; int i; fprintf(fp, "# qemu config file\n\n"); for (i = 0; lists[i] != NULL; i++) { data.list = lists[i]; qemu_opts_foreach(data.list, config_write_opts, &data, 0); } } int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) { char line[1024], group[64], id[64], arg[64], value[1024]; Location loc; QemuOptsList *list = NULL; QemuOpts *opts = NULL; int res = -1, lno = 0; loc_push_none(&loc); while (fgets(line, sizeof(line), fp) != NULL) { loc_set_file(fname, ++lno); if (line[0] == '\n') { /* skip empty lines */ continue; } if (line[0] == '#') { /* comment */ continue; } if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { /* group with id */ list = find_list(lists, group); if (list == NULL) goto out; opts = qemu_opts_create(list, id, 1); continue; } if (sscanf(line, "[%63[^]]]", group) == 1) { /* group without id */ list = find_list(lists, group); if (list == NULL) goto out; opts = qemu_opts_create(list, NULL, 0); continue; } if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { /* arg = value */ if (opts == NULL) { error_report("no group defined"); goto out; } if (qemu_opt_set(opts, arg, value) != 0) { goto out; } continue; } error_report("parse error"); goto out; } if (ferror(fp)) { error_report("error reading file"); goto out; } res = 0; out: loc_pop(&loc); return res; } int qemu_read_config_file(const char *filename) { FILE *f = fopen(filename, "r"); int ret; if (f == NULL) { return -errno; } ret = qemu_config_parse(f, vm_config_groups, filename); fclose(f); if (ret == 0) { return 0; } else { return -EINVAL; } }