#include "hw/loader.h"
#include "gdbstub.h"
#include "net.h"
+#include "net/slirp.h"
#include "qemu-char.h"
#include "sysemu.h"
#include "monitor.h"
#include "kvm.h"
#include "acl.h"
#include "qint.h"
+#include "qlist.h"
#include "qdict.h"
+#include "qbool.h"
#include "qstring.h"
+#include "qerror.h"
+#include "qjson.h"
+#include "json-streamer.h"
+#include "json-parser.h"
+#include "osdep.h"
//#define DEBUG
//#define DEBUG_COMPLETION
void (*user_print)(Monitor *mon, const QObject *data);
union {
void (*info)(Monitor *mon);
+ void (*info_new)(Monitor *mon, QObject **ret_data);
void (*cmd)(Monitor *mon, const QDict *qdict);
+ void (*cmd_new)(Monitor *mon, const QDict *params, QObject **ret_data);
} mhandler;
} mon_cmd_t;
QLIST_ENTRY(mon_fd_t) next;
};
+typedef struct MonitorControl {
+ QObject *id;
+ int print_enabled;
+ JSONMessageParser parser;
+} MonitorControl;
+
struct Monitor {
CharDriverState *chr;
int mux_out;
uint8_t outbuf[1024];
int outbuf_index;
ReadLineState *rs;
+ MonitorControl *mc;
CPUState *mon_cpu;
BlockDriverCompletionFunc *password_completion_cb;
void *password_opaque;
+ QError *error;
QLIST_HEAD(,mon_fd_t) fds;
QLIST_ENTRY(Monitor) entry;
};
static void monitor_command_cb(Monitor *mon, const char *cmdline,
void *opaque);
+/* Return true if in control mode, false otherwise */
+static inline int monitor_ctrl_mode(const Monitor *mon)
+{
+ return (mon->flags & MONITOR_USE_CONTROL);
+}
+
static void monitor_read_command(Monitor *mon, int show_prompt)
{
readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
static int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
void *opaque)
{
- if (mon->rs) {
+ if (monitor_ctrl_mode(mon)) {
+ qemu_error_new(QERR_MISSING_PARAMETER, "password");
+ return -EINVAL;
+ } else if (mon->rs) {
readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
/* prompt is printed on return from the command handler */
return 0;
void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
{
- char buf[4096];
- vsnprintf(buf, sizeof(buf), fmt, ap);
- monitor_puts(mon, buf);
+ if (mon->mc && !mon->mc->print_enabled) {
+ qemu_error_new(QERR_UNDEFINED_ERROR);
+ } else {
+ char buf[4096];
+ vsnprintf(buf, sizeof(buf), fmt, ap);
+ monitor_puts(mon, buf);
+ }
}
void monitor_printf(Monitor *mon, const char *fmt, ...)
return 0;
}
+static void monitor_user_noop(Monitor *mon, const QObject *data) { }
+
+static inline int monitor_handler_ported(const mon_cmd_t *cmd)
+{
+ return cmd->user_print != NULL;
+}
+
+static inline int monitor_has_error(const Monitor *mon)
+{
+ return mon->error != NULL;
+}
+
+static void monitor_print_qobject(Monitor *mon, const QObject *data)
+{
+ switch (qobject_type(data)) {
+ case QTYPE_QSTRING:
+ monitor_printf(mon, "%s",qstring_get_str(qobject_to_qstring(data)));
+ break;
+ case QTYPE_QINT:
+ monitor_printf(mon, "%" PRId64,qint_get_int(qobject_to_qint(data)));
+ break;
+ default:
+ monitor_printf(mon, "ERROR: unsupported type: %d",
+ qobject_type(data));
+ break;
+ }
+
+ monitor_puts(mon, "\n");
+}
+
+static void monitor_json_emitter(Monitor *mon, const QObject *data)
+{
+ QString *json;
+
+ json = qobject_to_json(data);
+ assert(json != NULL);
+
+ mon->mc->print_enabled = 1;
+ monitor_printf(mon, "%s\n", qstring_get_str(json));
+ mon->mc->print_enabled = 0;
+
+ QDECREF(json);
+}
+
+static void monitor_protocol_emitter(Monitor *mon, QObject *data)
+{
+ QDict *qmp;
+
+ qmp = qdict_new();
+
+ if (!monitor_has_error(mon)) {
+ /* success response */
+ if (data) {
+ qobject_incref(data);
+ qdict_put_obj(qmp, "return", data);
+ } else {
+ qdict_put(qmp, "return", qstring_from_str("OK"));
+ }
+ } else {
+ /* error response */
+ qdict_put(mon->error->error, "desc", qerror_human(mon->error));
+ qdict_put(qmp, "error", mon->error->error);
+ QINCREF(mon->error->error);
+ QDECREF(mon->error);
+ mon->error = NULL;
+ }
+
+ if (mon->mc->id) {
+ qdict_put_obj(qmp, "id", mon->mc->id);
+ mon->mc->id = NULL;
+ }
+
+ monitor_json_emitter(mon, QOBJECT(qmp));
+ QDECREF(qmp);
+}
+
+static void timestamp_put(QDict *qdict)
+{
+ int err;
+ QObject *obj;
+ qemu_timeval tv;
+
+ err = qemu_gettimeofday(&tv);
+ if (err < 0)
+ return;
+
+ obj = qobject_from_jsonf("{ 'seconds': %" PRId64 ", "
+ "'microseconds': %" PRId64 " }",
+ (int64_t) tv.tv_sec, (int64_t) tv.tv_usec);
+ assert(obj != NULL);
+
+ qdict_put_obj(qdict, "timestamp", obj);
+}
+
+/**
+ * monitor_protocol_event(): Generate a Monitor event
+ *
+ * Event-specific data can be emitted through the (optional) 'data' parameter.
+ */
+void monitor_protocol_event(MonitorEvent event, QObject *data)
+{
+ QDict *qmp;
+ const char *event_name;
+ Monitor *mon = cur_mon;
+
+ assert(event < QEVENT_MAX);
+
+ if (!monitor_ctrl_mode(mon))
+ return;
+
+ switch (event) {
+ case QEVENT_DEBUG:
+ event_name = "DEBUG";
+ break;
+ case QEVENT_SHUTDOWN:
+ event_name = "SHUTDOWN";
+ break;
+ case QEVENT_RESET:
+ event_name = "RESET";
+ break;
+ case QEVENT_POWERDOWN:
+ event_name = "POWERDOWN";
+ break;
+ case QEVENT_STOP:
+ event_name = "STOP";
+ break;
+ default:
+ abort();
+ break;
+ }
+
+ qmp = qdict_new();
+ timestamp_put(qmp);
+ qdict_put(qmp, "event", qstring_from_str(event_name));
+ if (data)
+ qdict_put_obj(qmp, "data", data);
+
+ monitor_json_emitter(mon, QOBJECT(qmp));
+ QDECREF(qmp);
+}
+
static int compare_cmd(const char *name, const char *list)
{
const char *p, *pstart;
}
}
-static void do_info(Monitor *mon, const QDict *qdict)
+static void do_info(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
const mon_cmd_t *cmd;
const char *item = qdict_get_try_str(qdict, "item");
- if (!item)
+ if (!item) {
+ assert(monitor_ctrl_mode(mon) == 0);
goto help;
- for(cmd = info_cmds; cmd->name != NULL; cmd++) {
+ }
+
+ for (cmd = info_cmds; cmd->name != NULL; cmd++) {
if (compare_cmd(item, cmd->name))
- goto found;
+ break;
}
- help:
- help_cmd(mon, "info");
+
+ if (cmd->name == NULL) {
+ if (monitor_ctrl_mode(mon)) {
+ qemu_error_new(QERR_COMMAND_NOT_FOUND, item);
+ return;
+ }
+ goto help;
+ }
+
+ if (monitor_handler_ported(cmd)) {
+ cmd->mhandler.info_new(mon, ret_data);
+
+ if (!monitor_ctrl_mode(mon)) {
+ /*
+ * User Protocol function is called here, Monitor Protocol is
+ * handled by monitor_call_handler()
+ */
+ if (*ret_data)
+ cmd->user_print(mon, *ret_data);
+ }
+ } else {
+ if (monitor_ctrl_mode(mon)) {
+ /* handler not converted yet */
+ qemu_error_new(QERR_COMMAND_NOT_FOUND, item);
+ } else {
+ cmd->mhandler.info(mon);
+ }
+ }
+
return;
- found:
- cmd->mhandler.info(mon);
+
+help:
+ help_cmd(mon, "info");
}
-static void do_info_version(Monitor *mon)
+/**
+ * do_info_version(): Show QEMU version
+ */
+static void do_info_version(Monitor *mon, QObject **ret_data)
{
- monitor_printf(mon, "%s\n", QEMU_VERSION QEMU_PKGVERSION);
+ *ret_data = QOBJECT(qstring_from_str(QEMU_VERSION QEMU_PKGVERSION));
}
static void do_info_name(Monitor *mon)
monitor_printf(mon, "%s\n", qemu_name);
}
+/**
+ * do_info_commands(): List QMP available commands
+ *
+ * Return a QList of QStrings.
+ */
+static void do_info_commands(Monitor *mon, QObject **ret_data)
+{
+ QList *cmd_list;
+ const mon_cmd_t *cmd;
+
+ cmd_list = qlist_new();
+
+ for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
+ if (monitor_handler_ported(cmd) && !compare_cmd(cmd->name, "info")) {
+ qlist_append(cmd_list, qstring_from_str(cmd->name));
+ }
+ }
+
+ for (cmd = info_cmds; cmd->name != NULL; cmd++) {
+ if (monitor_handler_ported(cmd)) {
+ char buf[128];
+ snprintf(buf, sizeof(buf), "query-%s", cmd->name);
+ qlist_append(cmd_list, qstring_from_str(buf));
+ }
+ }
+
+ *ret_data = QOBJECT(cmd_list);
+}
+
#if defined(TARGET_I386)
static void do_info_hpet(Monitor *mon)
{
#endif
}
-static void do_info_cpus(Monitor *mon)
+static void print_cpu_iter(QObject *obj, void *opaque)
+{
+ QDict *cpu;
+ int active = ' ';
+ Monitor *mon = opaque;
+
+ assert(qobject_type(obj) == QTYPE_QDICT);
+ cpu = qobject_to_qdict(obj);
+
+ if (strcmp(qdict_get_str(cpu, "current"), "yes") == 0)
+ active = '*';
+
+ monitor_printf(mon, "%c CPU #%d: ", active, (int)qdict_get_int(cpu, "CPU"));
+
+#if defined(TARGET_I386)
+ monitor_printf(mon, "pc=0x" TARGET_FMT_lx,
+ (target_ulong) qdict_get_int(cpu, "pc"));
+#elif defined(TARGET_PPC)
+ monitor_printf(mon, "nip=0x" TARGET_FMT_lx,
+ (target_long) qdict_get_int(cpu, "nip"));
+#elif defined(TARGET_SPARC)
+ monitor_printf(mon, "pc=0x " TARGET_FMT_lx,
+ (target_long) qdict_get_int(cpu, "pc"));
+ monitor_printf(mon, "npc=0x" TARGET_FMT_lx,
+ (target_long) qdict_get_int(cpu, "npc"));
+#elif defined(TARGET_MIPS)
+ monitor_printf(mon, "PC=0x" TARGET_FMT_lx,
+ (target_long) qdict_get_int(cpu, "PC"));
+#endif
+
+ if (strcmp(qdict_get_str(cpu, "halted"), "yes") == 0)
+ monitor_printf(mon, " (halted)");
+
+ monitor_printf(mon, "\n");
+}
+
+static void monitor_print_cpus(Monitor *mon, const QObject *data)
+{
+ QList *cpu_list;
+
+ assert(qobject_type(data) == QTYPE_QLIST);
+ cpu_list = qobject_to_qlist(data);
+ qlist_iter(cpu_list, print_cpu_iter, mon);
+}
+
+/**
+ * do_info_cpus(): Show CPU information
+ *
+ * Return a QList with a QDict for each CPU.
+ *
+ * For example:
+ *
+ * [ { "CPU": 0, "current": "yes", "pc": 0x..., "halted": "no" },
+ * { "CPU": 1, "current": "no", "pc": 0x..., "halted": "yes" } ]
+ */
+static void do_info_cpus(Monitor *mon, QObject **ret_data)
{
CPUState *env;
+ QList *cpu_list;
+
+ cpu_list = qlist_new();
/* just to set the default cpu if not already done */
mon_get_cpu();
for(env = first_cpu; env != NULL; env = env->next_cpu) {
+ const char *answer;
+ QDict *cpu = qdict_new();
+
cpu_synchronize_state(env);
- monitor_printf(mon, "%c CPU #%d:",
- (env == mon->mon_cpu) ? '*' : ' ',
- env->cpu_index);
+
+ qdict_put(cpu, "CPU", qint_from_int(env->cpu_index));
+ answer = (env == mon->mon_cpu) ? "yes" : "no";
+ qdict_put(cpu, "current", qstring_from_str(answer));
+
#if defined(TARGET_I386)
- monitor_printf(mon, " pc=0x" TARGET_FMT_lx,
- env->eip + env->segs[R_CS].base);
+ qdict_put(cpu, "pc", qint_from_int(env->eip + env->segs[R_CS].base));
#elif defined(TARGET_PPC)
- monitor_printf(mon, " nip=0x" TARGET_FMT_lx, env->nip);
+ qdict_put(cpu, "nip", qint_from_int(env->nip));
#elif defined(TARGET_SPARC)
- monitor_printf(mon, " pc=0x" TARGET_FMT_lx " npc=0x" TARGET_FMT_lx,
- env->pc, env->npc);
+ qdict_put(cpu, "pc", qint_from_int(env->pc));
+ qdict_put(cpu, "npc", qint_from_int(env->npc));
#elif defined(TARGET_MIPS)
- monitor_printf(mon, " PC=0x" TARGET_FMT_lx, env->active_tc.PC);
+ qdict_put(cpu, "PC", qint_from_int(env->active_tc.PC));
#endif
- if (env->halted)
- monitor_printf(mon, " (halted)");
- monitor_printf(mon, "\n");
+ answer = env->halted ? "yes" : "no";
+ qdict_put(cpu, "halted", qstring_from_str(answer));
+
+ qlist_append(cpu_list, cpu);
}
+
+ *ret_data = QOBJECT(cpu_list);
}
static void do_cpu_set(Monitor *mon, const QDict *qdict)
}
#endif
-static void do_quit(Monitor *mon, const QDict *qdict)
+/**
+ * do_quit(): Quit QEMU execution
+ */
+static void do_quit(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
exit(0);
}
if (bdrv_is_inserted(bs)) {
if (!force) {
if (!bdrv_is_removable(bs)) {
- monitor_printf(mon, "device is not removable\n");
+ qemu_error_new(QERR_DEVICE_NOT_REMOVABLE,
+ bdrv_get_device_name(bs));
return -1;
}
if (bdrv_is_locked(bs)) {
- monitor_printf(mon, "device is locked\n");
+ qemu_error_new(QERR_DEVICE_LOCKED, bdrv_get_device_name(bs));
return -1;
}
}
return 0;
}
-static void do_eject(Monitor *mon, const QDict *qdict)
+static void do_eject(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
BlockDriverState *bs;
int force = qdict_get_int(qdict, "force");
bs = bdrv_find(filename);
if (!bs) {
- monitor_printf(mon, "device not found\n");
+ qemu_error_new(QERR_DEVICE_NOT_FOUND, filename);
return;
}
eject_device(mon, bs, force);
}
+static void do_block_set_passwd(Monitor *mon, const QDict *qdict,
+ QObject **ret_data)
+{
+ BlockDriverState *bs;
+
+ bs = bdrv_find(qdict_get_str(qdict, "device"));
+ if (!bs) {
+ qemu_error_new(QERR_DEVICE_NOT_FOUND, qdict_get_str(qdict, "device"));
+ return;
+ }
+
+ if (bdrv_set_key(bs, qdict_get_str(qdict, "password")) < 0) {
+ qemu_error_new(QERR_INVALID_PASSWORD);
+ }
+}
+
static void do_change_block(Monitor *mon, const char *device,
const char *filename, const char *fmt)
{
bs = bdrv_find(device);
if (!bs) {
- monitor_printf(mon, "device not found\n");
+ qemu_error_new(QERR_DEVICE_NOT_FOUND, device);
return;
}
if (fmt) {
- drv = bdrv_find_format(fmt);
+ drv = bdrv_find_whitelisted_format(fmt);
if (!drv) {
- monitor_printf(mon, "invalid format %s\n", fmt);
+ qemu_error_new(QERR_INVALID_BLOCK_FORMAT, fmt);
return;
}
}
monitor_read_bdrv_key_start(mon, bs, NULL, NULL);
}
-static void change_vnc_password_cb(Monitor *mon, const char *password,
- void *opaque)
+static void change_vnc_password(const char *password)
{
if (vnc_display_password(NULL, password) < 0)
- monitor_printf(mon, "could not set VNC server password\n");
+ qemu_error_new(QERR_SET_PASSWD_FAILED);
+}
+
+static void change_vnc_password_cb(Monitor *mon, const char *password,
+ void *opaque)
+{
+ change_vnc_password(password);
monitor_read_command(mon, 1);
}
char password[9];
strncpy(password, arg, sizeof(password));
password[sizeof(password) - 1] = '\0';
- change_vnc_password_cb(mon, password, NULL);
+ change_vnc_password(password);
} else {
monitor_read_password(mon, change_vnc_password_cb, NULL);
}
} else {
if (vnc_display_open(NULL, target) < 0)
- monitor_printf(mon, "could not start VNC server on %s\n", target);
+ qemu_error_new(QERR_VNC_SERVER_FAILED, target);
}
}
-static void do_change(Monitor *mon, const QDict *qdict)
+/**
+ * do_change(): Change a removable medium, or VNC configuration
+ */
+static void do_change(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
const char *device = qdict_get_str(qdict, "device");
const char *target = qdict_get_str(qdict, "target");
}
}
-static void do_stop(Monitor *mon, const QDict *qdict)
+/**
+ * do_stop(): Stop VM execution
+ */
+static void do_stop(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
vm_stop(EXCP_INTERRUPT);
}
int err;
};
-static void do_cont(Monitor *mon, const QDict *qdict)
+/**
+ * do_cont(): Resume emulation.
+ */
+static void do_cont(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
struct bdrv_iterate_context context = { mon, 0 };
/* another key was set successfully, retry to continue */
if (!err)
- do_cont(mon, NULL);
+ do_cont(mon, NULL, NULL);
}
static void encrypted_bdrv_it(void *opaque, BlockDriverState *bs)
monitor_printf(mon, "\n");
}
-static void do_memory_save(Monitor *mon, const QDict *qdict)
+static void do_memory_save(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
FILE *f;
uint32_t size = qdict_get_int(qdict, "size");
fclose(f);
}
-static void do_physical_memory_save(Monitor *mon, const QDict *qdict)
+static void do_physical_memory_save(Monitor *mon, const QDict *qdict,
+ QObject **ret_data)
{
FILE *f;
uint32_t l;
}
}
-static void do_system_reset(Monitor *mon, const QDict *qdict)
+/**
+ * do_system_reset(): Issue a machine reset
+ */
+static void do_system_reset(Monitor *mon, const QDict *qdict,
+ QObject **ret_data)
{
qemu_system_reset_request();
}
-static void do_system_powerdown(Monitor *mon, const QDict *qdict)
+/**
+ * do_system_powerdown(): Issue a machine powerdown
+ */
+static void do_system_powerdown(Monitor *mon, const QDict *qdict,
+ QObject **ret_data)
{
qemu_system_powerdown_request();
}
monitor_printf(mon, "VM status: paused\n");
}
-
-static void do_balloon(Monitor *mon, const QDict *qdict)
+/**
+ * do_balloon(): Request VM to change its memory allocation
+ */
+static void do_balloon(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
int value = qdict_get_int(qdict, "value");
ram_addr_t target = value;
qemu_balloon(target << 20);
}
-static void do_info_balloon(Monitor *mon)
+static void monitor_print_balloon(Monitor *mon, const QObject *data)
+{
+ monitor_printf(mon, "balloon: actual=%d\n",
+ (int)qint_get_int(qobject_to_qint(data)));
+}
+
+/**
+ * do_info_balloon(): Balloon information
+ */
+static void do_info_balloon(Monitor *mon, QObject **ret_data)
{
ram_addr_t actual;
actual = qemu_balloon_status();
if (kvm_enabled() && !kvm_has_sync_mmu())
- monitor_printf(mon, "Using KVM without synchronous MMU, "
- "ballooning disabled\n");
+ qemu_error_new(QERR_KVM_MISSING_CAP, "synchronous MMU", "balloon");
else if (actual == 0)
- monitor_printf(mon, "Ballooning not activated in VM\n");
+ qemu_error_new(QERR_DEVICE_NOT_ACTIVE, "balloon");
else
- monitor_printf(mon, "balloon: actual=%d\n", (int)(actual >> 20));
+ *ret_data = QOBJECT(qint_from_int((int)(actual >> 20)));
}
static qemu_acl *find_acl(Monitor *mon, const char *name)
}
#endif
-static void do_getfd(Monitor *mon, const QDict *qdict)
+static void do_getfd(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
const char *fdname = qdict_get_str(qdict, "fdname");
mon_fd_t *monfd;
fd = qemu_chr_get_msgfd(mon->chr);
if (fd == -1) {
- monitor_printf(mon, "getfd: no file descriptor supplied via SCM_RIGHTS\n");
+ qemu_error_new(QERR_FD_NOT_SUPPLIED);
return;
}
if (qemu_isdigit(fdname[0])) {
- monitor_printf(mon, "getfd: monitor names may not begin with a number\n");
+ qemu_error_new(QERR_INVALID_PARAMETER, "fdname");
return;
}
fd = dup(fd);
if (fd == -1) {
- monitor_printf(mon, "Failed to dup() file descriptor: %s\n",
- strerror(errno));
+ if (errno == EMFILE)
+ qemu_error_new(QERR_TOO_MANY_FILES);
+ else
+ qemu_error_new(QERR_UNDEFINED_ERROR);
return;
}
QLIST_INSERT_HEAD(&mon->fds, monfd, next);
}
-static void do_closefd(Monitor *mon, const QDict *qdict)
+static void do_closefd(Monitor *mon, const QDict *qdict, QObject **ret_data)
{
const char *fdname = qdict_get_str(qdict, "fdname");
mon_fd_t *monfd;
return;
}
- monitor_printf(mon, "Failed to find file descriptor named %s\n",
- fdname);
+ qemu_error_new(QERR_FD_NOT_FOUND, fdname);
}
static void do_loadvm(Monitor *mon, const QDict *qdict)
.args_type = "",
.params = "",
.help = "show the version of QEMU",
- .mhandler.info = do_info_version,
+ .user_print = monitor_print_qobject,
+ .mhandler.info_new = do_info_version,
+ },
+ {
+ .name = "commands",
+ .args_type = "",
+ .params = "",
+ .help = "list QMP available commands",
+ .user_print = monitor_user_noop,
+ .mhandler.info_new = do_info_commands,
},
{
.name = "network",
.args_type = "",
.params = "",
.help = "show infos for each CPU",
- .mhandler.info = do_info_cpus,
+ .user_print = monitor_print_cpus,
+ .mhandler.info_new = do_info_cpus,
},
{
.name = "history",
.args_type = "",
.params = "",
.help = "show balloon information",
- .mhandler.info = do_info_balloon,
+ .user_print = monitor_print_balloon,
+ .mhandler.info_new = do_info_balloon,
},
{
.name = "qtree",
#define MAX_ARGS 16
+static int is_valid_option(const char *c, const char *typestr)
+{
+ char option[3];
+
+ option[0] = '-';
+ option[1] = *c;
+ option[2] = '\0';
+
+ typestr = strstr(typestr, option);
+ return (typestr != NULL);
+}
+
+static const mon_cmd_t *monitor_find_command(const char *cmdname)
+{
+ const mon_cmd_t *cmd;
+
+ for (cmd = mon_cmds; cmd->name != NULL; cmd++) {
+ if (compare_cmd(cmdname, cmd->name)) {
+ return cmd;
+ }
+ }
+
+ return NULL;
+}
+
static const mon_cmd_t *monitor_parse_command(Monitor *mon,
const char *cmdline,
QDict *qdict)
if (!p)
return NULL;
- /* find the command */
- for(cmd = mon_cmds; cmd->name != NULL; cmd++) {
- if (compare_cmd(cmdname, cmd->name))
- break;
- }
-
- if (cmd->name == NULL) {
+ cmd = monitor_find_command(cmdname);
+ if (!cmd) {
monitor_printf(mon, "unknown command: '%s'\n", cmdname);
return NULL;
}
break;
case '-':
{
- int has_option;
+ const char *tmp = p;
+ int has_option, skip_key = 0;
/* option */
c = *typestr++;
has_option = 0;
if (*p == '-') {
p++;
- if (*p != c) {
- monitor_printf(mon, "%s: unsupported option -%c\n",
- cmdname, *p);
- goto fail;
+ if(c != *p) {
+ if(!is_valid_option(p, typestr)) {
+
+ monitor_printf(mon, "%s: unsupported option -%c\n",
+ cmdname, *p);
+ goto fail;
+ } else {
+ skip_key = 1;
+ }
+ }
+ if(skip_key) {
+ p = tmp;
+ } else {
+ p++;
+ has_option = 1;
}
- p++;
- has_option = 1;
}
qdict_put(qdict, key, qint_from_int(has_option));
}
return NULL;
}
-static void monitor_handle_command(Monitor *mon, const char *cmdline)
+static void monitor_print_error(Monitor *mon)
+{
+ qerror_print(mon->error);
+ QDECREF(mon->error);
+ mon->error = NULL;
+}
+
+static void monitor_call_handler(Monitor *mon, const mon_cmd_t *cmd,
+ const QDict *params)
+{
+ QObject *data = NULL;
+
+ cmd->mhandler.cmd_new(mon, params, &data);
+
+ if (monitor_ctrl_mode(mon)) {
+ /* Monitor Protocol */
+ monitor_protocol_emitter(mon, data);
+ } else {
+ /* User Protocol */
+ if (data)
+ cmd->user_print(mon, data);
+ }
+
+ qobject_decref(data);
+}
+
+static void handle_user_command(Monitor *mon, const char *cmdline)
{
QDict *qdict;
const mon_cmd_t *cmd;
qdict = qdict_new();
cmd = monitor_parse_command(mon, cmdline, qdict);
- if (cmd) {
- qemu_errors_to_mon(mon);
+ if (!cmd)
+ goto out;
+
+ qemu_errors_to_mon(mon);
+
+ if (monitor_handler_ported(cmd)) {
+ monitor_call_handler(mon, cmd, qdict);
+ } else {
cmd->mhandler.cmd(mon, qdict);
- qemu_errors_to_previous();
}
+ if (monitor_has_error(mon))
+ monitor_print_error(mon);
+
+ qemu_errors_to_previous();
+
+out:
QDECREF(qdict);
}
return (mon->suspend_cnt == 0) ? 128 : 0;
}
+typedef struct CmdArgs {
+ QString *name;
+ int type;
+ int flag;
+ int optional;
+} CmdArgs;
+
+static int check_opt(const CmdArgs *cmd_args, const char *name, QDict *args)
+{
+ if (!cmd_args->optional) {
+ qemu_error_new(QERR_MISSING_PARAMETER, name);
+ return -1;
+ }
+
+ if (cmd_args->type == '-') {
+ /* handlers expect a value, they need to be changed */
+ qdict_put(args, name, qint_from_int(0));
+ }
+
+ return 0;
+}
+
+static int check_arg(const CmdArgs *cmd_args, QDict *args)
+{
+ QObject *value;
+ const char *name;
+
+ name = qstring_get_str(cmd_args->name);
+
+ if (!args) {
+ return check_opt(cmd_args, name, args);
+ }
+
+ value = qdict_get(args, name);
+ if (!value) {
+ return check_opt(cmd_args, name, args);
+ }
+
+ switch (cmd_args->type) {
+ case 'F':
+ case 'B':
+ case 's':
+ if (qobject_type(value) != QTYPE_QSTRING) {
+ qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "string");
+ return -1;
+ }
+ break;
+ case '/': {
+ int i;
+ const char *keys[] = { "count", "format", "size", NULL };
+
+ for (i = 0; keys[i]; i++) {
+ QObject *obj = qdict_get(args, keys[i]);
+ if (!obj) {
+ qemu_error_new(QERR_MISSING_PARAMETER, name);
+ return -1;
+ }
+ if (qobject_type(obj) != QTYPE_QINT) {
+ qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
+ return -1;
+ }
+ }
+ break;
+ }
+ case 'i':
+ case 'l':
+ if (qobject_type(value) != QTYPE_QINT) {
+ qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "int");
+ return -1;
+ }
+ break;
+ case '-':
+ if (qobject_type(value) != QTYPE_QINT &&
+ qobject_type(value) != QTYPE_QBOOL) {
+ qemu_error_new(QERR_INVALID_PARAMETER_TYPE, name, "bool");
+ return -1;
+ }
+ if (qobject_type(value) == QTYPE_QBOOL) {
+ /* handlers expect a QInt, they need to be changed */
+ qdict_put(args, name,
+ qint_from_int(qbool_get_int(qobject_to_qbool(value))));
+ }
+ break;
+ default:
+ /* impossible */
+ abort();
+ }
+
+ return 0;
+}
+
+static void cmd_args_init(CmdArgs *cmd_args)
+{
+ cmd_args->name = qstring_new();
+ cmd_args->type = cmd_args->flag = cmd_args->optional = 0;
+}
+
+/*
+ * This is not trivial, we have to parse Monitor command's argument
+ * type syntax to be able to check the arguments provided by clients.
+ *
+ * In the near future we will be using an array for that and will be
+ * able to drop all this parsing...
+ */
+static int monitor_check_qmp_args(const mon_cmd_t *cmd, QDict *args)
+{
+ int err;
+ const char *p;
+ CmdArgs cmd_args;
+
+ if (cmd->args_type == NULL) {
+ return (qdict_size(args) == 0 ? 0 : -1);
+ }
+
+ err = 0;
+ cmd_args_init(&cmd_args);
+
+ for (p = cmd->args_type;; p++) {
+ if (*p == ':') {
+ cmd_args.type = *++p;
+ p++;
+ if (cmd_args.type == '-') {
+ cmd_args.flag = *p++;
+ cmd_args.optional = 1;
+ } else if (*p == '?') {
+ cmd_args.optional = 1;
+ p++;
+ }
+
+ assert(*p == ',' || *p == '\0');
+ err = check_arg(&cmd_args, args);
+
+ QDECREF(cmd_args.name);
+ cmd_args_init(&cmd_args);
+
+ if (err < 0) {
+ break;
+ }
+ } else {
+ qstring_append_chr(cmd_args.name, *p);
+ }
+
+ if (*p == '\0') {
+ break;
+ }
+ }
+
+ QDECREF(cmd_args.name);
+ return err;
+}
+
+static void handle_qmp_command(JSONMessageParser *parser, QList *tokens)
+{
+ int err;
+ QObject *obj;
+ QDict *input, *args;
+ const mon_cmd_t *cmd;
+ Monitor *mon = cur_mon;
+ const char *cmd_name, *info_item;
+
+ args = NULL;
+ qemu_errors_to_mon(mon);
+
+ obj = json_parser_parse(tokens, NULL);
+ if (!obj) {
+ // FIXME: should be triggered in json_parser_parse()
+ qemu_error_new(QERR_JSON_PARSING);
+ goto err_out;
+ } else if (qobject_type(obj) != QTYPE_QDICT) {
+ qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "object");
+ qobject_decref(obj);
+ goto err_out;
+ }
+
+ input = qobject_to_qdict(obj);
+
+ mon->mc->id = qdict_get(input, "id");
+ qobject_incref(mon->mc->id);
+
+ obj = qdict_get(input, "execute");
+ if (!obj) {
+ qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "execute");
+ goto err_input;
+ } else if (qobject_type(obj) != QTYPE_QSTRING) {
+ qemu_error_new(QERR_QMP_BAD_INPUT_OBJECT, "string");
+ goto err_input;
+ }
+
+ cmd_name = qstring_get_str(qobject_to_qstring(obj));
+
+ /*
+ * XXX: We need this special case until we get info handlers
+ * converted into 'query-' commands
+ */
+ if (compare_cmd(cmd_name, "info")) {
+ qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
+ goto err_input;
+ } else if (strstart(cmd_name, "query-", &info_item)) {
+ cmd = monitor_find_command("info");
+ qdict_put_obj(input, "arguments",
+ qobject_from_jsonf("{ 'item': %s }", info_item));
+ } else {
+ cmd = monitor_find_command(cmd_name);
+ if (!cmd) {
+ qemu_error_new(QERR_COMMAND_NOT_FOUND, cmd_name);
+ goto err_input;
+ }
+ }
+
+ obj = qdict_get(input, "arguments");
+ if (!obj) {
+ args = qdict_new();
+ } else {
+ args = qobject_to_qdict(obj);
+ QINCREF(args);
+ }
+
+ QDECREF(input);
+
+ err = monitor_check_qmp_args(cmd, args);
+ if (err < 0) {
+ goto err_out;
+ }
+
+ monitor_call_handler(mon, cmd, args);
+ goto out;
+
+err_input:
+ QDECREF(input);
+err_out:
+ monitor_protocol_emitter(mon, NULL);
+out:
+ QDECREF(args);
+ qemu_errors_to_previous();
+}
+
+/**
+ * monitor_control_read(): Read and handle QMP input
+ */
+static void monitor_control_read(void *opaque, const uint8_t *buf, int size)
+{
+ Monitor *old_mon = cur_mon;
+
+ cur_mon = opaque;
+
+ json_message_parser_feed(&cur_mon->mc->parser, (const char *) buf, size);
+
+ cur_mon = old_mon;
+}
+
static void monitor_read(void *opaque, const uint8_t *buf, int size)
{
Monitor *old_mon = cur_mon;
if (size == 0 || buf[size - 1] != 0)
monitor_printf(cur_mon, "corrupted command\n");
else
- monitor_handle_command(cur_mon, (char *)buf);
+ handle_user_command(cur_mon, (char *)buf);
}
cur_mon = old_mon;
static void monitor_command_cb(Monitor *mon, const char *cmdline, void *opaque)
{
monitor_suspend(mon);
- monitor_handle_command(mon, cmdline);
+ handle_user_command(mon, cmdline);
monitor_resume(mon);
}
readline_show_prompt(mon->rs);
}
+/**
+ * monitor_control_event(): Print QMP gretting
+ */
+static void monitor_control_event(void *opaque, int event)
+{
+ if (event == CHR_EVENT_OPENED) {
+ QObject *data;
+ Monitor *mon = opaque;
+
+ json_message_parser_init(&mon->mc->parser, handle_qmp_command);
+
+ data = qobject_from_jsonf("{ 'QMP': { 'capabilities': [] } }");
+ assert(data != NULL);
+
+ monitor_json_emitter(mon, data);
+ qobject_decref(data);
+ }
+}
+
static void monitor_event(void *opaque, int event)
{
Monitor *mon = opaque;
mon->mux_out = 1;
break;
- case CHR_EVENT_RESET:
+ case CHR_EVENT_OPENED:
monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
"information\n", QEMU_VERSION);
if (!mon->mux_out) {
* End:
*/
+const char *monitor_cmdline_parse(const char *cmdline, int *flags)
+{
+ const char *dev;
+
+ if (strstart(cmdline, "control,", &dev)) {
+ if (strstart(dev, "vc", NULL)) {
+ fprintf(stderr, "qemu: control mode is for low-level interaction ");
+ fprintf(stderr, "cannot be used with device 'vc'\n");
+ exit(1);
+ }
+ *flags &= ~MONITOR_USE_READLINE;
+ *flags |= MONITOR_USE_CONTROL;
+ return dev;
+ }
+
+ return cmdline;
+}
+
void monitor_init(CharDriverState *chr, int flags)
{
static int is_first_init = 1;
monitor_read_command(mon, 0);
}
- qemu_chr_add_handlers(chr, monitor_can_read, monitor_read, monitor_event,
- mon);
+ if (monitor_ctrl_mode(mon)) {
+ mon->mc = qemu_mallocz(sizeof(MonitorControl));
+ /* Control mode requires special handlers */
+ qemu_chr_add_handlers(chr, monitor_can_read, monitor_control_read,
+ monitor_control_event, mon);
+ } else {
+ qemu_chr_add_handlers(chr, monitor_can_read, monitor_read,
+ monitor_event, mon);
+ }
QLIST_INSERT_HEAD(&mon_list, mon, entry);
if (!cur_mon || (flags & MONITOR_IS_DEFAULT))
return;
}
+ if (monitor_ctrl_mode(mon)) {
+ qemu_error_new(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs));
+ return;
+ }
+
monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs),
bdrv_get_encrypted_filename(bs));
break;
}
}
+
+void qemu_error_internal(const char *file, int linenr, const char *func,
+ const char *fmt, ...)
+{
+ va_list va;
+ QError *qerror;
+
+ assert(qemu_error_sink != NULL);
+
+ va_start(va, fmt);
+ qerror = qerror_from_info(file, linenr, func, fmt, &va);
+ va_end(va);
+
+ switch (qemu_error_sink->dest) {
+ case ERR_SINK_FILE:
+ qerror_print(qerror);
+ QDECREF(qerror);
+ break;
+ case ERR_SINK_MONITOR:
+ assert(qemu_error_sink->mon->error == NULL);
+ qemu_error_sink->mon->error = qerror;
+ break;
+ }
+}
projects / qemu.git / blobdiff