From 622311e8dfe485ba588b570c69d66e71d9624104 Mon Sep 17 00:00:00 2001 From: David Turner Date: Fri, 10 Sep 2010 12:05:01 +0200 Subject: upstream: qemu-char.h update --- qemu-config.c | 554 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 554 insertions(+) create mode 100644 qemu-config.c (limited to 'qemu-config.c') diff --git a/qemu-config.c b/qemu-config.c new file mode 100644 index 0000000..1efdbec --- /dev/null +++ b/qemu-config.c @@ -0,0 +1,554 @@ +#include "qemu-common.h" +#include "qemu-error.h" +#include "qemu-option.h" +#include "qemu-config.h" +#include "sysemu.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, + },{ + .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, 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, + },{ + .name = "rerror", + .type = QEMU_OPT_STRING, + },{ + .name = "werror", + .type = QEMU_OPT_STRING, + },{ + .name = "addr", + .type = QEMU_OPT_STRING, + .help = "pci address (virtio only)", + },{ + .name = "readonly", + .type = QEMU_OPT_BOOL, + }, + { /* 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, + }, + { /* end of list */ } + }, +}; + +QemuOptsList qemu_fsdev_opts = { + .name = "fsdev", + .implied_opt_name = "fstype", + .head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head), + .desc = { + { + .name = "fstype", + .type = QEMU_OPT_STRING, + }, { + .name = "path", + .type = QEMU_OPT_STRING, + }, { + .name = "security_model", + .type = QEMU_OPT_STRING, + }, + { /*End of list */ } + }, +}; + +QemuOptsList qemu_virtfs_opts = { + .name = "virtfs", + .implied_opt_name = "fstype", + .head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_opts.head), + .desc = { + { + .name = "fstype", + .type = QEMU_OPT_STRING, + }, { + .name = "path", + .type = QEMU_OPT_STRING, + }, { + .name = "mount_tag", + .type = QEMU_OPT_STRING, + }, { + .name = "security_model", + .type = QEMU_OPT_STRING, + }, + + { /*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, + }, + { /* 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 */ } + }, +}; + +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, + 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; + } +} -- cgit v1.1