diff options
Diffstat (limited to 'qemu/monitor.c')
-rw-r--r-- | qemu/monitor.c | 4269 |
1 files changed, 0 insertions, 4269 deletions
diff --git a/qemu/monitor.c b/qemu/monitor.c deleted file mode 100644 index d1c193013..000000000 --- a/qemu/monitor.c +++ /dev/null @@ -1,4269 +0,0 @@ -/* - * QEMU monitor - * - * Copyright (c) 2003-2004 Fabrice Bellard - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -#include "qemu/osdep.h" -#include <dirent.h> -#include "hw/hw.h" -#include "monitor/qdev.h" -#include "hw/usb.h" -#include "hw/i386/pc.h" -#include "hw/pci/pci.h" -#include "sysemu/watchdog.h" -#include "hw/loader.h" -#include "exec/gdbstub.h" -#include "net/net.h" -#include "net/slirp.h" -#include "sysemu/char.h" -#include "ui/qemu-spice.h" -#include "sysemu/sysemu.h" -#include "sysemu/numa.h" -#include "monitor/monitor.h" -#include "qemu/readline.h" -#include "ui/console.h" -#include "ui/input.h" -#include "sysemu/blockdev.h" -#include "sysemu/block-backend.h" -#include "audio/audio.h" -#include "disas/disas.h" -#include "sysemu/balloon.h" -#include "qemu/timer.h" -#include "migration/migration.h" -#include "sysemu/kvm.h" -#include "qemu/acl.h" -#include "sysemu/tpm.h" -#include "qapi/qmp/qerror.h" -#include "qapi/qmp/qint.h" -#include "qapi/qmp/qfloat.h" -#include "qapi/qmp/qlist.h" -#include "qapi/qmp/qbool.h" -#include "qapi/qmp/qstring.h" -#include "qapi/qmp/qjson.h" -#include "qapi/qmp/json-streamer.h" -#include "qapi/qmp/json-parser.h" -#include <qom/object_interfaces.h> -#include "cpu.h" -#include "trace.h" -#include "trace/control.h" -#include "monitor/hmp-target.h" -#ifdef CONFIG_TRACE_SIMPLE -#include "trace/simple.h" -#endif -#include "exec/memory.h" -#include "qmp-commands.h" -#include "hmp.h" -#include "qemu/thread.h" -#include "block/qapi.h" -#include "qapi/qmp-event.h" -#include "qapi-event.h" -#include "qmp-introspect.h" -#include "sysemu/block-backend.h" -#include "sysemu/qtest.h" -#include "qemu/cutils.h" - -/* for hmp_info_irq/pic */ -#if defined(TARGET_SPARC) -#include "hw/sparc/sun4m.h" -#endif -#include "hw/lm32/lm32_pic.h" - -#if defined(TARGET_S390X) -#include "hw/s390x/storage-keys.h" -#endif - -/* - * Supported types: - * - * 'F' filename - * 'B' block device name - * 's' string (accept optional quote) - * 'S' it just appends the rest of the string (accept optional quote) - * 'O' option string of the form NAME=VALUE,... - * parsed according to QemuOptsList given by its name - * Example: 'device:O' uses qemu_device_opts. - * Restriction: only lists with empty desc are supported - * TODO lift the restriction - * 'i' 32 bit integer - * 'l' target long (32 or 64 bit) - * 'M' Non-negative target long (32 or 64 bit), in user mode the - * value is multiplied by 2^20 (think Mebibyte) - * 'o' octets (aka bytes) - * user mode accepts an optional E, e, P, p, T, t, G, g, M, m, - * K, k suffix, which multiplies the value by 2^60 for suffixes E - * and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t, - * 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k - * 'T' double - * user mode accepts an optional ms, us, ns suffix, - * which divides the value by 1e3, 1e6, 1e9, respectively - * '/' optional gdb-like print format (like "/10x") - * - * '?' optional type (for all types, except '/') - * '.' other form of optional type (for 'i' and 'l') - * 'b' boolean - * user mode accepts "on" or "off" - * '-' optional parameter (eg. '-f') - * - */ - -typedef struct mon_cmd_t { - const char *name; - const char *args_type; - const char *params; - const char *help; - union { - void (*cmd)(Monitor *mon, const QDict *qdict); - void (*cmd_new)(QDict *params, QObject **ret_data, Error **errp); - } mhandler; - /* @sub_table is a list of 2nd level of commands. If it do not exist, - * mhandler should be used. If it exist, sub_table[?].mhandler should be - * used, and mhandler of 1st level plays the role of help function. - */ - struct mon_cmd_t *sub_table; - void (*command_completion)(ReadLineState *rs, int nb_args, const char *str); -} mon_cmd_t; - -/* file descriptors passed via SCM_RIGHTS */ -typedef struct mon_fd_t mon_fd_t; -struct mon_fd_t { - char *name; - int fd; - QLIST_ENTRY(mon_fd_t) next; -}; - -/* file descriptor associated with a file descriptor set */ -typedef struct MonFdsetFd MonFdsetFd; -struct MonFdsetFd { - int fd; - bool removed; - char *opaque; - QLIST_ENTRY(MonFdsetFd) next; -}; - -/* file descriptor set containing fds passed via SCM_RIGHTS */ -typedef struct MonFdset MonFdset; -struct MonFdset { - int64_t id; - QLIST_HEAD(, MonFdsetFd) fds; - QLIST_HEAD(, MonFdsetFd) dup_fds; - QLIST_ENTRY(MonFdset) next; -}; - -typedef struct { - QObject *id; - JSONMessageParser parser; - /* - * When a client connects, we're in capabilities negotiation mode. - * When command qmp_capabilities succeeds, we go into command - * mode. - */ - bool in_command_mode; /* are we in command mode? */ -} MonitorQMP; - -/* - * To prevent flooding clients, events can be throttled. The - * throttling is calculated globally, rather than per-Monitor - * instance. - */ -typedef struct MonitorQAPIEventState { - QAPIEvent event; /* Throttling state for this event type and... */ - QDict *data; /* ... data, see qapi_event_throttle_equal() */ - QEMUTimer *timer; /* Timer for handling delayed events */ - QDict *qdict; /* Delayed event (if any) */ -} MonitorQAPIEventState; - -typedef struct { - int64_t rate; /* Minimum time (in ns) between two events */ -} MonitorQAPIEventConf; - -struct Monitor { - CharDriverState *chr; - int reset_seen; - int flags; - int suspend_cnt; - bool skip_flush; - - QemuMutex out_lock; - QString *outbuf; - guint out_watch; - - /* Read under either BQL or out_lock, written with BQL+out_lock. */ - int mux_out; - - ReadLineState *rs; - MonitorQMP qmp; - CPUState *mon_cpu; - BlockCompletionFunc *password_completion_cb; - void *password_opaque; - mon_cmd_t *cmd_table; - QLIST_HEAD(,mon_fd_t) fds; - QLIST_ENTRY(Monitor) entry; -}; - -/* QMP checker flags */ -#define QMP_ACCEPT_UNKNOWNS 1 - -/* Protects mon_list, monitor_event_state. */ -static QemuMutex monitor_lock; - -static QLIST_HEAD(mon_list, Monitor) mon_list; -static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets; -static int mon_refcount; - -static mon_cmd_t mon_cmds[]; -static mon_cmd_t info_cmds[]; - -static const mon_cmd_t qmp_cmds[]; - -Monitor *cur_mon; - -static QEMUClockType event_clock_type = QEMU_CLOCK_REALTIME; - -static void monitor_command_cb(void *opaque, const char *cmdline, - void *readline_opaque); - -/** - * Is @mon a QMP monitor? - */ -static inline bool monitor_is_qmp(const Monitor *mon) -{ - return (mon->flags & MONITOR_USE_CONTROL); -} - -/** - * Is the current monitor, if any, a QMP monitor? - */ -bool monitor_cur_is_qmp(void) -{ - return cur_mon && monitor_is_qmp(cur_mon); -} - -void monitor_read_command(Monitor *mon, int show_prompt) -{ - if (!mon->rs) - return; - - readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL); - if (show_prompt) - readline_show_prompt(mon->rs); -} - -int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func, - void *opaque) -{ - if (mon->rs) { - readline_start(mon->rs, "Password: ", 1, readline_func, opaque); - /* prompt is printed on return from the command handler */ - return 0; - } else { - monitor_printf(mon, "terminal does not support password prompting\n"); - return -ENOTTY; - } -} - -static void monitor_flush_locked(Monitor *mon); - -static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond, - void *opaque) -{ - Monitor *mon = opaque; - - qemu_mutex_lock(&mon->out_lock); - mon->out_watch = 0; - monitor_flush_locked(mon); - qemu_mutex_unlock(&mon->out_lock); - return FALSE; -} - -/* Called with mon->out_lock held. */ -static void monitor_flush_locked(Monitor *mon) -{ - int rc; - size_t len; - const char *buf; - - if (mon->skip_flush) { - return; - } - - buf = qstring_get_str(mon->outbuf); - len = qstring_get_length(mon->outbuf); - - if (len && !mon->mux_out) { - rc = qemu_chr_fe_write(mon->chr, (const uint8_t *) buf, len); - if ((rc < 0 && errno != EAGAIN) || (rc == len)) { - /* all flushed or error */ - QDECREF(mon->outbuf); - mon->outbuf = qstring_new(); - return; - } - if (rc > 0) { - /* partinal write */ - QString *tmp = qstring_from_str(buf + rc); - QDECREF(mon->outbuf); - mon->outbuf = tmp; - } - if (mon->out_watch == 0) { - mon->out_watch = qemu_chr_fe_add_watch(mon->chr, G_IO_OUT|G_IO_HUP, - monitor_unblocked, mon); - } - } -} - -void monitor_flush(Monitor *mon) -{ - qemu_mutex_lock(&mon->out_lock); - monitor_flush_locked(mon); - qemu_mutex_unlock(&mon->out_lock); -} - -/* flush at every end of line */ -static void monitor_puts(Monitor *mon, const char *str) -{ - char c; - - qemu_mutex_lock(&mon->out_lock); - for(;;) { - c = *str++; - if (c == '\0') - break; - if (c == '\n') { - qstring_append_chr(mon->outbuf, '\r'); - } - qstring_append_chr(mon->outbuf, c); - if (c == '\n') { - monitor_flush_locked(mon); - } - } - qemu_mutex_unlock(&mon->out_lock); -} - -void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap) -{ - char *buf; - - if (!mon) - return; - - if (monitor_is_qmp(mon)) { - return; - } - - buf = g_strdup_vprintf(fmt, ap); - monitor_puts(mon, buf); - g_free(buf); -} - -void monitor_printf(Monitor *mon, const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - monitor_vprintf(mon, fmt, ap); - va_end(ap); -} - -int monitor_fprintf(FILE *stream, const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - monitor_vprintf((Monitor *)stream, fmt, ap); - va_end(ap); - return 0; -} - -static void monitor_json_emitter(Monitor *mon, const QObject *data) -{ - QString *json; - - json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) : - qobject_to_json(data); - assert(json != NULL); - - qstring_append_chr(json, '\n'); - monitor_puts(mon, qstring_get_str(json)); - - QDECREF(json); -} - -static QDict *build_qmp_error_dict(Error *err) -{ - QObject *obj; - - obj = qobject_from_jsonf("{ 'error': { 'class': %s, 'desc': %s } }", - QapiErrorClass_lookup[error_get_class(err)], - error_get_pretty(err)); - - return qobject_to_qdict(obj); -} - -static void monitor_protocol_emitter(Monitor *mon, QObject *data, - Error *err) -{ - QDict *qmp; - - trace_monitor_protocol_emitter(mon); - - if (!err) { - /* success response */ - qmp = qdict_new(); - if (data) { - qobject_incref(data); - qdict_put_obj(qmp, "return", data); - } else { - /* return an empty QDict by default */ - qdict_put(qmp, "return", qdict_new()); - } - } else { - /* error response */ - qmp = build_qmp_error_dict(err); - } - - if (mon->qmp.id) { - qdict_put_obj(qmp, "id", mon->qmp.id); - mon->qmp.id = NULL; - } - - monitor_json_emitter(mon, QOBJECT(qmp)); - QDECREF(qmp); -} - - -static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = { - /* Limit guest-triggerable events to 1 per second */ - [QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS }, - [QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS }, - [QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS }, - [QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS }, - [QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS }, - [QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS }, -}; - -GHashTable *monitor_qapi_event_state; - -/* - * Emits the event to every monitor instance, @event is only used for trace - * Called with monitor_lock held. - */ -static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict) -{ - Monitor *mon; - - trace_monitor_protocol_event_emit(event, qdict); - QLIST_FOREACH(mon, &mon_list, entry) { - if (monitor_is_qmp(mon) && mon->qmp.in_command_mode) { - monitor_json_emitter(mon, QOBJECT(qdict)); - } - } -} - -static void monitor_qapi_event_handler(void *opaque); - -/* - * Queue a new event for emission to Monitor instances, - * applying any rate limiting if required. - */ -static void -monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp) -{ - MonitorQAPIEventConf *evconf; - MonitorQAPIEventState *evstate; - - assert(event < QAPI_EVENT__MAX); - evconf = &monitor_qapi_event_conf[event]; - trace_monitor_protocol_event_queue(event, qdict, evconf->rate); - - qemu_mutex_lock(&monitor_lock); - - if (!evconf->rate) { - /* Unthrottled event */ - monitor_qapi_event_emit(event, qdict); - } else { - QDict *data = qobject_to_qdict(qdict_get(qdict, "data")); - MonitorQAPIEventState key = { .event = event, .data = data }; - - evstate = g_hash_table_lookup(monitor_qapi_event_state, &key); - assert(!evstate || timer_pending(evstate->timer)); - - if (evstate) { - /* - * Timer is pending for (at least) evconf->rate ns after - * last send. Store event for sending when timer fires, - * replacing a prior stored event if any. - */ - QDECREF(evstate->qdict); - evstate->qdict = qdict; - QINCREF(evstate->qdict); - } else { - /* - * Last send was (at least) evconf->rate ns ago. - * Send immediately, and arm the timer to call - * monitor_qapi_event_handler() in evconf->rate ns. Any - * events arriving before then will be delayed until then. - */ - int64_t now = qemu_clock_get_ns(event_clock_type); - - monitor_qapi_event_emit(event, qdict); - - evstate = g_new(MonitorQAPIEventState, 1); - evstate->event = event; - evstate->data = data; - QINCREF(evstate->data); - evstate->qdict = NULL; - evstate->timer = timer_new_ns(event_clock_type, - monitor_qapi_event_handler, - evstate); - g_hash_table_add(monitor_qapi_event_state, evstate); - timer_mod_ns(evstate->timer, now + evconf->rate); - } - } - - qemu_mutex_unlock(&monitor_lock); -} - -/* - * This function runs evconf->rate ns after sending a throttled - * event. - * If another event has since been stored, send it. - */ -static void monitor_qapi_event_handler(void *opaque) -{ - MonitorQAPIEventState *evstate = opaque; - MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event]; - - trace_monitor_protocol_event_handler(evstate->event, evstate->qdict); - qemu_mutex_lock(&monitor_lock); - - if (evstate->qdict) { - int64_t now = qemu_clock_get_ns(event_clock_type); - - monitor_qapi_event_emit(evstate->event, evstate->qdict); - QDECREF(evstate->qdict); - evstate->qdict = NULL; - timer_mod_ns(evstate->timer, now + evconf->rate); - } else { - g_hash_table_remove(monitor_qapi_event_state, evstate); - QDECREF(evstate->data); - timer_free(evstate->timer); - g_free(evstate); - } - - qemu_mutex_unlock(&monitor_lock); -} - -static unsigned int qapi_event_throttle_hash(const void *key) -{ - const MonitorQAPIEventState *evstate = key; - unsigned int hash = evstate->event * 255; - - if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) { - hash += g_str_hash(qdict_get_str(evstate->data, "id")); - } - - if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) { - hash += g_str_hash(qdict_get_str(evstate->data, "node-name")); - } - - return hash; -} - -static gboolean qapi_event_throttle_equal(const void *a, const void *b) -{ - const MonitorQAPIEventState *eva = a; - const MonitorQAPIEventState *evb = b; - - if (eva->event != evb->event) { - return FALSE; - } - - if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) { - return !strcmp(qdict_get_str(eva->data, "id"), - qdict_get_str(evb->data, "id")); - } - - if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) { - return !strcmp(qdict_get_str(eva->data, "node-name"), - qdict_get_str(evb->data, "node-name")); - } - - return TRUE; -} - -static void monitor_qapi_event_init(void) -{ - if (qtest_enabled()) { - event_clock_type = QEMU_CLOCK_VIRTUAL; - } - - monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash, - qapi_event_throttle_equal); - qmp_event_set_func_emit(monitor_qapi_event_queue); -} - -static void qmp_capabilities(QDict *params, QObject **ret_data, Error **errp) -{ - cur_mon->qmp.in_command_mode = true; -} - -static void handle_hmp_command(Monitor *mon, const char *cmdline); - -static void monitor_data_init(Monitor *mon) -{ - memset(mon, 0, sizeof(Monitor)); - qemu_mutex_init(&mon->out_lock); - mon->outbuf = qstring_new(); - /* Use *mon_cmds by default. */ - mon->cmd_table = mon_cmds; -} - -static void monitor_data_destroy(Monitor *mon) -{ - QDECREF(mon->outbuf); - qemu_mutex_destroy(&mon->out_lock); -} - -char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index, - int64_t cpu_index, Error **errp) -{ - char *output = NULL; - Monitor *old_mon, hmp; - - monitor_data_init(&hmp); - hmp.skip_flush = true; - - old_mon = cur_mon; - cur_mon = &hmp; - - if (has_cpu_index) { - int ret = monitor_set_cpu(cpu_index); - if (ret < 0) { - cur_mon = old_mon; - error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index", - "a CPU number"); - goto out; - } - } - - handle_hmp_command(&hmp, command_line); - cur_mon = old_mon; - - qemu_mutex_lock(&hmp.out_lock); - if (qstring_get_length(hmp.outbuf) > 0) { - output = g_strdup(qstring_get_str(hmp.outbuf)); - } else { - output = g_strdup(""); - } - qemu_mutex_unlock(&hmp.out_lock); - -out: - monitor_data_destroy(&hmp); - return output; -} - -static int compare_cmd(const char *name, const char *list) -{ - const char *p, *pstart; - int len; - len = strlen(name); - p = list; - for(;;) { - pstart = p; - p = strchr(p, '|'); - if (!p) - p = pstart + strlen(pstart); - if ((p - pstart) == len && !memcmp(pstart, name, len)) - return 1; - if (*p == '\0') - break; - p++; - } - return 0; -} - -static int get_str(char *buf, int buf_size, const char **pp) -{ - const char *p; - char *q; - int c; - - q = buf; - p = *pp; - while (qemu_isspace(*p)) { - p++; - } - if (*p == '\0') { - fail: - *q = '\0'; - *pp = p; - return -1; - } - if (*p == '\"') { - p++; - while (*p != '\0' && *p != '\"') { - if (*p == '\\') { - p++; - c = *p++; - switch (c) { - case 'n': - c = '\n'; - break; - case 'r': - c = '\r'; - break; - case '\\': - case '\'': - case '\"': - break; - default: - printf("unsupported escape code: '\\%c'\n", c); - goto fail; - } - if ((q - buf) < buf_size - 1) { - *q++ = c; - } - } else { - if ((q - buf) < buf_size - 1) { - *q++ = *p; - } - p++; - } - } - if (*p != '\"') { - printf("unterminated string\n"); - goto fail; - } - p++; - } else { - while (*p != '\0' && !qemu_isspace(*p)) { - if ((q - buf) < buf_size - 1) { - *q++ = *p; - } - p++; - } - } - *q = '\0'; - *pp = p; - return 0; -} - -#define MAX_ARGS 16 - -static void free_cmdline_args(char **args, int nb_args) -{ - int i; - - assert(nb_args <= MAX_ARGS); - - for (i = 0; i < nb_args; i++) { - g_free(args[i]); - } - -} - -/* - * Parse the command line to get valid args. - * @cmdline: command line to be parsed. - * @pnb_args: location to store the number of args, must NOT be NULL. - * @args: location to store the args, which should be freed by caller, must - * NOT be NULL. - * - * Returns 0 on success, negative on failure. - * - * NOTE: this parser is an approximate form of the real command parser. Number - * of args have a limit of MAX_ARGS. If cmdline contains more, it will - * return with failure. - */ -static int parse_cmdline(const char *cmdline, - int *pnb_args, char **args) -{ - const char *p; - int nb_args, ret; - char buf[1024]; - - p = cmdline; - nb_args = 0; - for (;;) { - while (qemu_isspace(*p)) { - p++; - } - if (*p == '\0') { - break; - } - if (nb_args >= MAX_ARGS) { - goto fail; - } - ret = get_str(buf, sizeof(buf), &p); - if (ret < 0) { - goto fail; - } - args[nb_args] = g_strdup(buf); - nb_args++; - } - *pnb_args = nb_args; - return 0; - - fail: - free_cmdline_args(args, nb_args); - return -1; -} - -static void help_cmd_dump_one(Monitor *mon, - const mon_cmd_t *cmd, - char **prefix_args, - int prefix_args_nb) -{ - int i; - - for (i = 0; i < prefix_args_nb; i++) { - monitor_printf(mon, "%s ", prefix_args[i]); - } - monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help); -} - -/* @args[@arg_index] is the valid command need to find in @cmds */ -static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds, - char **args, int nb_args, int arg_index) -{ - const mon_cmd_t *cmd; - - /* No valid arg need to compare with, dump all in *cmds */ - if (arg_index >= nb_args) { - for (cmd = cmds; cmd->name != NULL; cmd++) { - help_cmd_dump_one(mon, cmd, args, arg_index); - } - return; - } - - /* Find one entry to dump */ - for (cmd = cmds; cmd->name != NULL; cmd++) { - if (compare_cmd(args[arg_index], cmd->name)) { - if (cmd->sub_table) { - /* continue with next arg */ - help_cmd_dump(mon, cmd->sub_table, - args, nb_args, arg_index + 1); - } else { - help_cmd_dump_one(mon, cmd, args, arg_index); - } - break; - } - } -} - -static void help_cmd(Monitor *mon, const char *name) -{ - char *args[MAX_ARGS]; - int nb_args = 0; - - /* 1. parse user input */ - if (name) { - /* special case for log, directly dump and return */ - if (!strcmp(name, "log")) { - const QEMULogItem *item; - monitor_printf(mon, "Log items (comma separated):\n"); - monitor_printf(mon, "%-10s %s\n", "none", "remove all logs"); - for (item = qemu_log_items; item->mask != 0; item++) { - monitor_printf(mon, "%-10s %s\n", item->name, item->help); - } - return; - } - - if (parse_cmdline(name, &nb_args, args) < 0) { - return; - } - } - - /* 2. dump the contents according to parsed args */ - help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0); - - free_cmdline_args(args, nb_args); -} - -static void do_help_cmd(Monitor *mon, const QDict *qdict) -{ - help_cmd(mon, qdict_get_try_str(qdict, "name")); -} - -static void hmp_trace_event(Monitor *mon, const QDict *qdict) -{ - const char *tp_name = qdict_get_str(qdict, "name"); - bool new_state = qdict_get_bool(qdict, "option"); - Error *local_err = NULL; - - qmp_trace_event_set_state(tp_name, new_state, true, true, &local_err); - if (local_err) { - error_report_err(local_err); - } -} - -#ifdef CONFIG_TRACE_SIMPLE -static void hmp_trace_file(Monitor *mon, const QDict *qdict) -{ - const char *op = qdict_get_try_str(qdict, "op"); - const char *arg = qdict_get_try_str(qdict, "arg"); - - if (!op) { - st_print_trace_file_status((FILE *)mon, &monitor_fprintf); - } else if (!strcmp(op, "on")) { - st_set_trace_file_enabled(true); - } else if (!strcmp(op, "off")) { - st_set_trace_file_enabled(false); - } else if (!strcmp(op, "flush")) { - st_flush_trace_buffer(); - } else if (!strcmp(op, "set")) { - if (arg) { - st_set_trace_file(arg); - } - } else { - monitor_printf(mon, "unexpected argument \"%s\"\n", op); - help_cmd(mon, "trace-file"); - } -} -#endif - -static void hmp_info_help(Monitor *mon, const QDict *qdict) -{ - help_cmd(mon, "info"); -} - -CommandInfoList *qmp_query_commands(Error **errp) -{ - CommandInfoList *info, *cmd_list = NULL; - const mon_cmd_t *cmd; - - for (cmd = qmp_cmds; cmd->name != NULL; cmd++) { - info = g_malloc0(sizeof(*info)); - info->value = g_malloc0(sizeof(*info->value)); - info->value->name = g_strdup(cmd->name); - - info->next = cmd_list; - cmd_list = info; - } - - return cmd_list; -} - -EventInfoList *qmp_query_events(Error **errp) -{ - EventInfoList *info, *ev_list = NULL; - QAPIEvent e; - - for (e = 0 ; e < QAPI_EVENT__MAX ; e++) { - const char *event_name = QAPIEvent_lookup[e]; - assert(event_name != NULL); - info = g_malloc0(sizeof(*info)); - info->value = g_malloc0(sizeof(*info->value)); - info->value->name = g_strdup(event_name); - - info->next = ev_list; - ev_list = info; - } - - return ev_list; -} - -/* - * Minor hack: generated marshalling suppressed for this command - * ('gen': false in the schema) so we can parse the JSON string - * directly into QObject instead of first parsing it with - * visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it - * to QObject with generated output marshallers, every time. Instead, - * we do it in test-qmp-input-visitor.c, just to make sure - * qapi-introspect.py's output actually conforms to the schema. - */ -static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data, - Error **errp) -{ - *ret_data = qobject_from_json(qmp_schema_json); -} - -/* set the current CPU defined by the user */ -int monitor_set_cpu(int cpu_index) -{ - CPUState *cpu; - - cpu = qemu_get_cpu(cpu_index); - if (cpu == NULL) { - return -1; - } - cur_mon->mon_cpu = cpu; - return 0; -} - -CPUState *mon_get_cpu(void) -{ - if (!cur_mon->mon_cpu) { - monitor_set_cpu(0); - } - cpu_synchronize_state(cur_mon->mon_cpu); - return cur_mon->mon_cpu; -} - -CPUArchState *mon_get_cpu_env(void) -{ - return mon_get_cpu()->env_ptr; -} - -int monitor_get_cpu_index(void) -{ - return mon_get_cpu()->cpu_index; -} - -static void hmp_info_registers(Monitor *mon, const QDict *qdict) -{ - cpu_dump_state(mon_get_cpu(), (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU); -} - -static void hmp_info_jit(Monitor *mon, const QDict *qdict) -{ - dump_exec_info((FILE *)mon, monitor_fprintf); - dump_drift_info((FILE *)mon, monitor_fprintf); -} - -static void hmp_info_opcount(Monitor *mon, const QDict *qdict) -{ - dump_opcount_info((FILE *)mon, monitor_fprintf); -} - -static void hmp_info_history(Monitor *mon, const QDict *qdict) -{ - int i; - const char *str; - - if (!mon->rs) - return; - i = 0; - for(;;) { - str = readline_get_history(mon->rs, i); - if (!str) - break; - monitor_printf(mon, "%d: '%s'\n", i, str); - i++; - } -} - -static void hmp_info_cpustats(Monitor *mon, const QDict *qdict) -{ - cpu_dump_statistics(mon_get_cpu(), (FILE *)mon, &monitor_fprintf, 0); -} - -static void hmp_info_trace_events(Monitor *mon, const QDict *qdict) -{ - TraceEventInfoList *events = qmp_trace_event_get_state("*", NULL); - TraceEventInfoList *elem; - - for (elem = events; elem != NULL; elem = elem->next) { - monitor_printf(mon, "%s : state %u\n", - elem->value->name, - elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0); - } - qapi_free_TraceEventInfoList(events); -} - -void qmp_client_migrate_info(const char *protocol, const char *hostname, - bool has_port, int64_t port, - bool has_tls_port, int64_t tls_port, - bool has_cert_subject, const char *cert_subject, - Error **errp) -{ - if (strcmp(protocol, "spice") == 0) { - if (!qemu_using_spice(errp)) { - return; - } - - if (!has_port && !has_tls_port) { - error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port"); - return; - } - - if (qemu_spice_migrate_info(hostname, - has_port ? port : -1, - has_tls_port ? tls_port : -1, - cert_subject)) { - error_setg(errp, QERR_UNDEFINED_ERROR); - return; - } - return; - } - - error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice"); -} - -static void hmp_logfile(Monitor *mon, const QDict *qdict) -{ - qemu_set_log_filename(qdict_get_str(qdict, "filename")); -} - -static void hmp_log(Monitor *mon, const QDict *qdict) -{ - int mask; - const char *items = qdict_get_str(qdict, "items"); - - if (!strcmp(items, "none")) { - mask = 0; - } else { - mask = qemu_str_to_log_mask(items); - if (!mask) { - help_cmd(mon, "log"); - return; - } - } - qemu_set_log(mask); -} - -static void hmp_singlestep(Monitor *mon, const QDict *qdict) -{ - const char *option = qdict_get_try_str(qdict, "option"); - if (!option || !strcmp(option, "on")) { - singlestep = 1; - } else if (!strcmp(option, "off")) { - singlestep = 0; - } else { - monitor_printf(mon, "unexpected option %s\n", option); - } -} - -static void hmp_gdbserver(Monitor *mon, const QDict *qdict) -{ - const char *device = qdict_get_try_str(qdict, "device"); - if (!device) - device = "tcp::" DEFAULT_GDBSTUB_PORT; - if (gdbserver_start(device) < 0) { - monitor_printf(mon, "Could not open gdbserver on device '%s'\n", - device); - } else if (strcmp(device, "none") == 0) { - monitor_printf(mon, "Disabled gdbserver\n"); - } else { - monitor_printf(mon, "Waiting for gdb connection on device '%s'\n", - device); - } -} - -static void hmp_watchdog_action(Monitor *mon, const QDict *qdict) -{ - const char *action = qdict_get_str(qdict, "action"); - if (select_watchdog_action(action) == -1) { - monitor_printf(mon, "Unknown watchdog action '%s'\n", action); - } -} - -static void monitor_printc(Monitor *mon, int c) -{ - monitor_printf(mon, "'"); - switch(c) { - case '\'': - monitor_printf(mon, "\\'"); - break; - case '\\': - monitor_printf(mon, "\\\\"); - break; - case '\n': - monitor_printf(mon, "\\n"); - break; - case '\r': - monitor_printf(mon, "\\r"); - break; - default: - if (c >= 32 && c <= 126) { - monitor_printf(mon, "%c", c); - } else { - monitor_printf(mon, "\\x%02x", c); - } - break; - } - monitor_printf(mon, "'"); -} - -static void memory_dump(Monitor *mon, int count, int format, int wsize, - hwaddr addr, int is_physical) -{ - int l, line_size, i, max_digits, len; - uint8_t buf[16]; - uint64_t v; - - if (format == 'i') { - int flags = 0; -#ifdef TARGET_I386 - CPUArchState *env = mon_get_cpu_env(); - if (wsize == 2) { - flags = 1; - } else if (wsize == 4) { - flags = 0; - } else { - /* as default we use the current CS size */ - flags = 0; - if (env) { -#ifdef TARGET_X86_64 - if ((env->efer & MSR_EFER_LMA) && - (env->segs[R_CS].flags & DESC_L_MASK)) - flags = 2; - else -#endif - if (!(env->segs[R_CS].flags & DESC_B_MASK)) - flags = 1; - } - } -#endif -#ifdef TARGET_PPC - CPUArchState *env = mon_get_cpu_env(); - flags = msr_le << 16; - flags |= env->bfd_mach; -#endif - monitor_disas(mon, mon_get_cpu(), addr, count, is_physical, flags); - return; - } - - len = wsize * count; - if (wsize == 1) - line_size = 8; - else - line_size = 16; - max_digits = 0; - - switch(format) { - case 'o': - max_digits = (wsize * 8 + 2) / 3; - break; - default: - case 'x': - max_digits = (wsize * 8) / 4; - break; - case 'u': - case 'd': - max_digits = (wsize * 8 * 10 + 32) / 33; - break; - case 'c': - wsize = 1; - break; - } - - while (len > 0) { - if (is_physical) - monitor_printf(mon, TARGET_FMT_plx ":", addr); - else - monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr); - l = len; - if (l > line_size) - l = line_size; - if (is_physical) { - cpu_physical_memory_read(addr, buf, l); - } else { - if (cpu_memory_rw_debug(mon_get_cpu(), addr, buf, l, 0) < 0) { - monitor_printf(mon, " Cannot access memory\n"); - break; - } - } - i = 0; - while (i < l) { - switch(wsize) { - default: - case 1: - v = ldub_p(buf + i); - break; - case 2: - v = lduw_p(buf + i); - break; - case 4: - v = (uint32_t)ldl_p(buf + i); - break; - case 8: - v = ldq_p(buf + i); - break; - } - monitor_printf(mon, " "); - switch(format) { - case 'o': - monitor_printf(mon, "%#*" PRIo64, max_digits, v); - break; - case 'x': - monitor_printf(mon, "0x%0*" PRIx64, max_digits, v); - break; - case 'u': - monitor_printf(mon, "%*" PRIu64, max_digits, v); - break; - case 'd': - monitor_printf(mon, "%*" PRId64, max_digits, v); - break; - case 'c': - monitor_printc(mon, v); - break; - } - i += wsize; - } - monitor_printf(mon, "\n"); - addr += l; - len -= l; - } -} - -static void hmp_memory_dump(Monitor *mon, const QDict *qdict) -{ - int count = qdict_get_int(qdict, "count"); - int format = qdict_get_int(qdict, "format"); - int size = qdict_get_int(qdict, "size"); - target_long addr = qdict_get_int(qdict, "addr"); - - memory_dump(mon, count, format, size, addr, 0); -} - -static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict) -{ - int count = qdict_get_int(qdict, "count"); - int format = qdict_get_int(qdict, "format"); - int size = qdict_get_int(qdict, "size"); - hwaddr addr = qdict_get_int(qdict, "addr"); - - memory_dump(mon, count, format, size, addr, 1); -} - -static void do_print(Monitor *mon, const QDict *qdict) -{ - int format = qdict_get_int(qdict, "format"); - hwaddr val = qdict_get_int(qdict, "val"); - - switch(format) { - case 'o': - monitor_printf(mon, "%#" HWADDR_PRIo, val); - break; - case 'x': - monitor_printf(mon, "%#" HWADDR_PRIx, val); - break; - case 'u': - monitor_printf(mon, "%" HWADDR_PRIu, val); - break; - default: - case 'd': - monitor_printf(mon, "%" HWADDR_PRId, val); - break; - case 'c': - monitor_printc(mon, val); - break; - } - monitor_printf(mon, "\n"); -} - -static void hmp_sum(Monitor *mon, const QDict *qdict) -{ - uint32_t addr; - uint16_t sum; - uint32_t start = qdict_get_int(qdict, "start"); - uint32_t size = qdict_get_int(qdict, "size"); - - sum = 0; - for(addr = start; addr < (start + size); addr++) { - uint8_t val = address_space_ldub(&address_space_memory, addr, - MEMTXATTRS_UNSPECIFIED, NULL); - /* BSD sum algorithm ('sum' Unix command) */ - sum = (sum >> 1) | (sum << 15); - sum += val; - } - monitor_printf(mon, "%05d\n", sum); -} - -static int mouse_button_state; - -static void hmp_mouse_move(Monitor *mon, const QDict *qdict) -{ - int dx, dy, dz, button; - const char *dx_str = qdict_get_str(qdict, "dx_str"); - const char *dy_str = qdict_get_str(qdict, "dy_str"); - const char *dz_str = qdict_get_try_str(qdict, "dz_str"); - - dx = strtol(dx_str, NULL, 0); - dy = strtol(dy_str, NULL, 0); - qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx); - qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy); - - if (dz_str) { - dz = strtol(dz_str, NULL, 0); - if (dz != 0) { - button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN; - qemu_input_queue_btn(NULL, button, true); - qemu_input_event_sync(); - qemu_input_queue_btn(NULL, button, false); - } - } - qemu_input_event_sync(); -} - -static void hmp_mouse_button(Monitor *mon, const QDict *qdict) -{ - static uint32_t bmap[INPUT_BUTTON__MAX] = { - [INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON, - [INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON, - [INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON, - }; - int button_state = qdict_get_int(qdict, "button_state"); - - if (mouse_button_state == button_state) { - return; - } - qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state); - qemu_input_event_sync(); - mouse_button_state = button_state; -} - -static void hmp_ioport_read(Monitor *mon, const QDict *qdict) -{ - int size = qdict_get_int(qdict, "size"); - int addr = qdict_get_int(qdict, "addr"); - int has_index = qdict_haskey(qdict, "index"); - uint32_t val; - int suffix; - - if (has_index) { - int index = qdict_get_int(qdict, "index"); - cpu_outb(addr & IOPORTS_MASK, index & 0xff); - addr++; - } - addr &= 0xffff; - - switch(size) { - default: - case 1: - val = cpu_inb(addr); - suffix = 'b'; - break; - case 2: - val = cpu_inw(addr); - suffix = 'w'; - break; - case 4: - val = cpu_inl(addr); - suffix = 'l'; - break; - } - monitor_printf(mon, "port%c[0x%04x] = %#0*x\n", - suffix, addr, size * 2, val); -} - -static void hmp_ioport_write(Monitor *mon, const QDict *qdict) -{ - int size = qdict_get_int(qdict, "size"); - int addr = qdict_get_int(qdict, "addr"); - int val = qdict_get_int(qdict, "val"); - - addr &= IOPORTS_MASK; - - switch (size) { - default: - case 1: - cpu_outb(addr, val); - break; - case 2: - cpu_outw(addr, val); - break; - case 4: - cpu_outl(addr, val); - break; - } -} - -static void hmp_boot_set(Monitor *mon, const QDict *qdict) -{ - Error *local_err = NULL; - const char *bootdevice = qdict_get_str(qdict, "bootdevice"); - - qemu_boot_set(bootdevice, &local_err); - if (local_err) { - error_report_err(local_err); - } else { - monitor_printf(mon, "boot device list now set to %s\n", bootdevice); - } -} - -static void hmp_info_mtree(Monitor *mon, const QDict *qdict) -{ - mtree_info((fprintf_function)monitor_printf, mon); -} - -static void hmp_info_numa(Monitor *mon, const QDict *qdict) -{ - int i; - CPUState *cpu; - uint64_t *node_mem; - - node_mem = g_new0(uint64_t, nb_numa_nodes); - query_numa_node_mem(node_mem); - monitor_printf(mon, "%d nodes\n", nb_numa_nodes); - for (i = 0; i < nb_numa_nodes; i++) { - monitor_printf(mon, "node %d cpus:", i); - CPU_FOREACH(cpu) { - if (cpu->numa_node == i) { - monitor_printf(mon, " %d", cpu->cpu_index); - } - } - monitor_printf(mon, "\n"); - monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i, - node_mem[i] >> 20); - } - g_free(node_mem); -} - -#ifdef CONFIG_PROFILER - -int64_t tcg_time; -int64_t dev_time; - -static void hmp_info_profile(Monitor *mon, const QDict *qdict) -{ - monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n", - dev_time, dev_time / (double)NANOSECONDS_PER_SECOND); - monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n", - tcg_time, tcg_time / (double)NANOSECONDS_PER_SECOND); - tcg_time = 0; - dev_time = 0; -} -#else -static void hmp_info_profile(Monitor *mon, const QDict *qdict) -{ - monitor_printf(mon, "Internal profiler not compiled\n"); -} -#endif - -/* Capture support */ -static QLIST_HEAD (capture_list_head, CaptureState) capture_head; - -static void hmp_info_capture(Monitor *mon, const QDict *qdict) -{ - int i; - CaptureState *s; - - for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) { - monitor_printf(mon, "[%d]: ", i); - s->ops.info (s->opaque); - } -} - -static void hmp_stopcapture(Monitor *mon, const QDict *qdict) -{ - int i; - int n = qdict_get_int(qdict, "n"); - CaptureState *s; - - for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) { - if (i == n) { - s->ops.destroy (s->opaque); - QLIST_REMOVE (s, entries); - g_free (s); - return; - } - } -} - -static void hmp_wavcapture(Monitor *mon, const QDict *qdict) -{ - const char *path = qdict_get_str(qdict, "path"); - int has_freq = qdict_haskey(qdict, "freq"); - int freq = qdict_get_try_int(qdict, "freq", -1); - int has_bits = qdict_haskey(qdict, "bits"); - int bits = qdict_get_try_int(qdict, "bits", -1); - int has_channels = qdict_haskey(qdict, "nchannels"); - int nchannels = qdict_get_try_int(qdict, "nchannels", -1); - CaptureState *s; - - s = g_malloc0 (sizeof (*s)); - - freq = has_freq ? freq : 44100; - bits = has_bits ? bits : 16; - nchannels = has_channels ? nchannels : 2; - - if (wav_start_capture (s, path, freq, bits, nchannels)) { - monitor_printf(mon, "Failed to add wave capture\n"); - g_free (s); - return; - } - QLIST_INSERT_HEAD (&capture_head, s, entries); -} - -static qemu_acl *find_acl(Monitor *mon, const char *name) -{ - qemu_acl *acl = qemu_acl_find(name); - - if (!acl) { - monitor_printf(mon, "acl: unknown list '%s'\n", name); - } - return acl; -} - -static void hmp_acl_show(Monitor *mon, const QDict *qdict) -{ - const char *aclname = qdict_get_str(qdict, "aclname"); - qemu_acl *acl = find_acl(mon, aclname); - qemu_acl_entry *entry; - int i = 0; - - if (acl) { - monitor_printf(mon, "policy: %s\n", - acl->defaultDeny ? "deny" : "allow"); - QTAILQ_FOREACH(entry, &acl->entries, next) { - i++; - monitor_printf(mon, "%d: %s %s\n", i, - entry->deny ? "deny" : "allow", entry->match); - } - } -} - -static void hmp_acl_reset(Monitor *mon, const QDict *qdict) -{ - const char *aclname = qdict_get_str(qdict, "aclname"); - qemu_acl *acl = find_acl(mon, aclname); - - if (acl) { - qemu_acl_reset(acl); - monitor_printf(mon, "acl: removed all rules\n"); - } -} - -static void hmp_acl_policy(Monitor *mon, const QDict *qdict) -{ - const char *aclname = qdict_get_str(qdict, "aclname"); - const char *policy = qdict_get_str(qdict, "policy"); - qemu_acl *acl = find_acl(mon, aclname); - - if (acl) { - if (strcmp(policy, "allow") == 0) { - acl->defaultDeny = 0; - monitor_printf(mon, "acl: policy set to 'allow'\n"); - } else if (strcmp(policy, "deny") == 0) { - acl->defaultDeny = 1; - monitor_printf(mon, "acl: policy set to 'deny'\n"); - } else { - monitor_printf(mon, "acl: unknown policy '%s', " - "expected 'deny' or 'allow'\n", policy); - } - } -} - -static void hmp_acl_add(Monitor *mon, const QDict *qdict) -{ - const char *aclname = qdict_get_str(qdict, "aclname"); - const char *match = qdict_get_str(qdict, "match"); - const char *policy = qdict_get_str(qdict, "policy"); - int has_index = qdict_haskey(qdict, "index"); - int index = qdict_get_try_int(qdict, "index", -1); - qemu_acl *acl = find_acl(mon, aclname); - int deny, ret; - - if (acl) { - if (strcmp(policy, "allow") == 0) { - deny = 0; - } else if (strcmp(policy, "deny") == 0) { - deny = 1; - } else { - monitor_printf(mon, "acl: unknown policy '%s', " - "expected 'deny' or 'allow'\n", policy); - return; - } - if (has_index) - ret = qemu_acl_insert(acl, deny, match, index); - else - ret = qemu_acl_append(acl, deny, match); - if (ret < 0) - monitor_printf(mon, "acl: unable to add acl entry\n"); - else - monitor_printf(mon, "acl: added rule at position %d\n", ret); - } -} - -static void hmp_acl_remove(Monitor *mon, const QDict *qdict) -{ - const char *aclname = qdict_get_str(qdict, "aclname"); - const char *match = qdict_get_str(qdict, "match"); - qemu_acl *acl = find_acl(mon, aclname); - int ret; - - if (acl) { - ret = qemu_acl_remove(acl, match); - if (ret < 0) - monitor_printf(mon, "acl: no matching acl entry\n"); - else - monitor_printf(mon, "acl: removed rule at position %d\n", ret); - } -} - -void qmp_getfd(const char *fdname, Error **errp) -{ - mon_fd_t *monfd; - int fd; - - fd = qemu_chr_fe_get_msgfd(cur_mon->chr); - if (fd == -1) { - error_setg(errp, QERR_FD_NOT_SUPPLIED); - return; - } - - if (qemu_isdigit(fdname[0])) { - close(fd); - error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname", - "a name not starting with a digit"); - return; - } - - QLIST_FOREACH(monfd, &cur_mon->fds, next) { - if (strcmp(monfd->name, fdname) != 0) { - continue; - } - - close(monfd->fd); - monfd->fd = fd; - return; - } - - monfd = g_malloc0(sizeof(mon_fd_t)); - monfd->name = g_strdup(fdname); - monfd->fd = fd; - - QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next); -} - -void qmp_closefd(const char *fdname, Error **errp) -{ - mon_fd_t *monfd; - - QLIST_FOREACH(monfd, &cur_mon->fds, next) { - if (strcmp(monfd->name, fdname) != 0) { - continue; - } - - QLIST_REMOVE(monfd, next); - close(monfd->fd); - g_free(monfd->name); - g_free(monfd); - return; - } - - error_setg(errp, QERR_FD_NOT_FOUND, fdname); -} - -static void hmp_loadvm(Monitor *mon, const QDict *qdict) -{ - int saved_vm_running = runstate_is_running(); - const char *name = qdict_get_str(qdict, "name"); - - vm_stop(RUN_STATE_RESTORE_VM); - - if (load_vmstate(name) == 0 && saved_vm_running) { - vm_start(); - } -} - -int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp) -{ - mon_fd_t *monfd; - - QLIST_FOREACH(monfd, &mon->fds, next) { - int fd; - - if (strcmp(monfd->name, fdname) != 0) { - continue; - } - - fd = monfd->fd; - - /* caller takes ownership of fd */ - QLIST_REMOVE(monfd, next); - g_free(monfd->name); - g_free(monfd); - - return fd; - } - - error_setg(errp, "File descriptor named '%s' has not been found", fdname); - return -1; -} - -static void monitor_fdset_cleanup(MonFdset *mon_fdset) -{ - MonFdsetFd *mon_fdset_fd; - MonFdsetFd *mon_fdset_fd_next; - - QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) { - if ((mon_fdset_fd->removed || - (QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) && - runstate_is_running()) { - close(mon_fdset_fd->fd); - g_free(mon_fdset_fd->opaque); - QLIST_REMOVE(mon_fdset_fd, next); - g_free(mon_fdset_fd); - } - } - - if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) { - QLIST_REMOVE(mon_fdset, next); - g_free(mon_fdset); - } -} - -static void monitor_fdsets_cleanup(void) -{ - MonFdset *mon_fdset; - MonFdset *mon_fdset_next; - - QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) { - monitor_fdset_cleanup(mon_fdset); - } -} - -AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque, - const char *opaque, Error **errp) -{ - int fd; - Monitor *mon = cur_mon; - AddfdInfo *fdinfo; - - fd = qemu_chr_fe_get_msgfd(mon->chr); - if (fd == -1) { - error_setg(errp, QERR_FD_NOT_SUPPLIED); - goto error; - } - - fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id, - has_opaque, opaque, errp); - if (fdinfo) { - return fdinfo; - } - -error: - if (fd != -1) { - close(fd); - } - return NULL; -} - -void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp) -{ - MonFdset *mon_fdset; - MonFdsetFd *mon_fdset_fd; - char fd_str[60]; - - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - if (mon_fdset->id != fdset_id) { - continue; - } - QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { - if (has_fd) { - if (mon_fdset_fd->fd != fd) { - continue; - } - mon_fdset_fd->removed = true; - break; - } else { - mon_fdset_fd->removed = true; - } - } - if (has_fd && !mon_fdset_fd) { - goto error; - } - monitor_fdset_cleanup(mon_fdset); - return; - } - -error: - if (has_fd) { - snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64, - fdset_id, fd); - } else { - snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id); - } - error_setg(errp, QERR_FD_NOT_FOUND, fd_str); -} - -FdsetInfoList *qmp_query_fdsets(Error **errp) -{ - MonFdset *mon_fdset; - MonFdsetFd *mon_fdset_fd; - FdsetInfoList *fdset_list = NULL; - - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info)); - FdsetFdInfoList *fdsetfd_list = NULL; - - fdset_info->value = g_malloc0(sizeof(*fdset_info->value)); - fdset_info->value->fdset_id = mon_fdset->id; - - QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { - FdsetFdInfoList *fdsetfd_info; - - fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info)); - fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value)); - fdsetfd_info->value->fd = mon_fdset_fd->fd; - if (mon_fdset_fd->opaque) { - fdsetfd_info->value->has_opaque = true; - fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque); - } else { - fdsetfd_info->value->has_opaque = false; - } - - fdsetfd_info->next = fdsetfd_list; - fdsetfd_list = fdsetfd_info; - } - - fdset_info->value->fds = fdsetfd_list; - - fdset_info->next = fdset_list; - fdset_list = fdset_info; - } - - return fdset_list; -} - -AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id, - bool has_opaque, const char *opaque, - Error **errp) -{ - MonFdset *mon_fdset = NULL; - MonFdsetFd *mon_fdset_fd; - AddfdInfo *fdinfo; - - if (has_fdset_id) { - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - /* Break if match found or match impossible due to ordering by ID */ - if (fdset_id <= mon_fdset->id) { - if (fdset_id < mon_fdset->id) { - mon_fdset = NULL; - } - break; - } - } - } - - if (mon_fdset == NULL) { - int64_t fdset_id_prev = -1; - MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets); - - if (has_fdset_id) { - if (fdset_id < 0) { - error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id", - "a non-negative value"); - return NULL; - } - /* Use specified fdset ID */ - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - mon_fdset_cur = mon_fdset; - if (fdset_id < mon_fdset_cur->id) { - break; - } - } - } else { - /* Use first available fdset ID */ - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - mon_fdset_cur = mon_fdset; - if (fdset_id_prev == mon_fdset_cur->id - 1) { - fdset_id_prev = mon_fdset_cur->id; - continue; - } - break; - } - } - - mon_fdset = g_malloc0(sizeof(*mon_fdset)); - if (has_fdset_id) { - mon_fdset->id = fdset_id; - } else { - mon_fdset->id = fdset_id_prev + 1; - } - - /* The fdset list is ordered by fdset ID */ - if (!mon_fdset_cur) { - QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next); - } else if (mon_fdset->id < mon_fdset_cur->id) { - QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next); - } else { - QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next); - } - } - - mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd)); - mon_fdset_fd->fd = fd; - mon_fdset_fd->removed = false; - if (has_opaque) { - mon_fdset_fd->opaque = g_strdup(opaque); - } - QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next); - - fdinfo = g_malloc0(sizeof(*fdinfo)); - fdinfo->fdset_id = mon_fdset->id; - fdinfo->fd = mon_fdset_fd->fd; - - return fdinfo; -} - -int monitor_fdset_get_fd(int64_t fdset_id, int flags) -{ -#ifndef _WIN32 - MonFdset *mon_fdset; - MonFdsetFd *mon_fdset_fd; - int mon_fd_flags; - - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - if (mon_fdset->id != fdset_id) { - continue; - } - QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { - mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL); - if (mon_fd_flags == -1) { - return -1; - } - - if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) { - return mon_fdset_fd->fd; - } - } - errno = EACCES; - return -1; - } -#endif - - errno = ENOENT; - return -1; -} - -int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd) -{ - MonFdset *mon_fdset; - MonFdsetFd *mon_fdset_fd_dup; - - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - if (mon_fdset->id != fdset_id) { - continue; - } - QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) { - if (mon_fdset_fd_dup->fd == dup_fd) { - return -1; - } - } - mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup)); - mon_fdset_fd_dup->fd = dup_fd; - QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next); - return 0; - } - return -1; -} - -static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove) -{ - MonFdset *mon_fdset; - MonFdsetFd *mon_fdset_fd_dup; - - QLIST_FOREACH(mon_fdset, &mon_fdsets, next) { - QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) { - if (mon_fdset_fd_dup->fd == dup_fd) { - if (remove) { - QLIST_REMOVE(mon_fdset_fd_dup, next); - if (QLIST_EMPTY(&mon_fdset->dup_fds)) { - monitor_fdset_cleanup(mon_fdset); - } - return -1; - } else { - return mon_fdset->id; - } - } - } - } - return -1; -} - -int monitor_fdset_dup_fd_find(int dup_fd) -{ - return monitor_fdset_dup_fd_find_remove(dup_fd, false); -} - -void monitor_fdset_dup_fd_remove(int dup_fd) -{ - monitor_fdset_dup_fd_find_remove(dup_fd, true); -} - -int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp) -{ - int fd; - Error *local_err = NULL; - - if (!qemu_isdigit(fdname[0]) && mon) { - fd = monitor_get_fd(mon, fdname, &local_err); - } else { - fd = qemu_parse_fd(fdname); - if (fd == -1) { - error_setg(&local_err, "Invalid file descriptor number '%s'", - fdname); - } - } - if (local_err) { - error_propagate(errp, local_err); - assert(fd == -1); - } else { - assert(fd != -1); - } - - return fd; -} - -/* Please update hmp-commands.hx when adding or changing commands */ -static mon_cmd_t info_cmds[] = { -#include "hmp-commands-info.h" - { NULL, NULL, }, -}; - -/* mon_cmds and info_cmds would be sorted at runtime */ -static mon_cmd_t mon_cmds[] = { -#include "hmp-commands.h" - { NULL, NULL, }, -}; - -static const mon_cmd_t qmp_cmds[] = { -#include "qmp-commands-old.h" - { /* NULL */ }, -}; - -/*******************************************************************/ - -static const char *pch; -static sigjmp_buf expr_env; - - -static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN -expr_error(Monitor *mon, const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - monitor_vprintf(mon, fmt, ap); - monitor_printf(mon, "\n"); - va_end(ap); - siglongjmp(expr_env, 1); -} - -/* return 0 if OK, -1 if not found */ -static int get_monitor_def(target_long *pval, const char *name) -{ - const MonitorDef *md = target_monitor_defs(); - void *ptr; - uint64_t tmp = 0; - int ret; - - if (md == NULL) { - return -1; - } - - for(; md->name != NULL; md++) { - if (compare_cmd(name, md->name)) { - if (md->get_value) { - *pval = md->get_value(md, md->offset); - } else { - CPUArchState *env = mon_get_cpu_env(); - ptr = (uint8_t *)env + md->offset; - switch(md->type) { - case MD_I32: - *pval = *(int32_t *)ptr; - break; - case MD_TLONG: - *pval = *(target_long *)ptr; - break; - default: - *pval = 0; - break; - } - } - return 0; - } - } - - ret = target_get_monitor_def(mon_get_cpu(), name, &tmp); - if (!ret) { - *pval = (target_long) tmp; - } - - return ret; -} - -static void next(void) -{ - if (*pch != '\0') { - pch++; - while (qemu_isspace(*pch)) - pch++; - } -} - -static int64_t expr_sum(Monitor *mon); - -static int64_t expr_unary(Monitor *mon) -{ - int64_t n; - char *p; - int ret; - - switch(*pch) { - case '+': - next(); - n = expr_unary(mon); - break; - case '-': - next(); - n = -expr_unary(mon); - break; - case '~': - next(); - n = ~expr_unary(mon); - break; - case '(': - next(); - n = expr_sum(mon); - if (*pch != ')') { - expr_error(mon, "')' expected"); - } - next(); - break; - case '\'': - pch++; - if (*pch == '\0') - expr_error(mon, "character constant expected"); - n = *pch; - pch++; - if (*pch != '\'') - expr_error(mon, "missing terminating \' character"); - next(); - break; - case '$': - { - char buf[128], *q; - target_long reg=0; - - pch++; - q = buf; - while ((*pch >= 'a' && *pch <= 'z') || - (*pch >= 'A' && *pch <= 'Z') || - (*pch >= '0' && *pch <= '9') || - *pch == '_' || *pch == '.') { - if ((q - buf) < sizeof(buf) - 1) - *q++ = *pch; - pch++; - } - while (qemu_isspace(*pch)) - pch++; - *q = 0; - ret = get_monitor_def(®, buf); - if (ret < 0) - expr_error(mon, "unknown register"); - n = reg; - } - break; - case '\0': - expr_error(mon, "unexpected end of expression"); - n = 0; - break; - default: - errno = 0; - n = strtoull(pch, &p, 0); - if (errno == ERANGE) { - expr_error(mon, "number too large"); - } - if (pch == p) { - expr_error(mon, "invalid char '%c' in expression", *p); - } - pch = p; - while (qemu_isspace(*pch)) - pch++; - break; - } - return n; -} - - -static int64_t expr_prod(Monitor *mon) -{ - int64_t val, val2; - int op; - - val = expr_unary(mon); - for(;;) { - op = *pch; - if (op != '*' && op != '/' && op != '%') - break; - next(); - val2 = expr_unary(mon); - switch(op) { - default: - case '*': - val *= val2; - break; - case '/': - case '%': - if (val2 == 0) - expr_error(mon, "division by zero"); - if (op == '/') - val /= val2; - else - val %= val2; - break; - } - } - return val; -} - -static int64_t expr_logic(Monitor *mon) -{ - int64_t val, val2; - int op; - - val = expr_prod(mon); - for(;;) { - op = *pch; - if (op != '&' && op != '|' && op != '^') - break; - next(); - val2 = expr_prod(mon); - switch(op) { - default: - case '&': - val &= val2; - break; - case '|': - val |= val2; - break; - case '^': - val ^= val2; - break; - } - } - return val; -} - -static int64_t expr_sum(Monitor *mon) -{ - int64_t val, val2; - int op; - - val = expr_logic(mon); - for(;;) { - op = *pch; - if (op != '+' && op != '-') - break; - next(); - val2 = expr_logic(mon); - if (op == '+') - val += val2; - else - val -= val2; - } - return val; -} - -static int get_expr(Monitor *mon, int64_t *pval, const char **pp) -{ - pch = *pp; - if (sigsetjmp(expr_env, 0)) { - *pp = pch; - return -1; - } - while (qemu_isspace(*pch)) - pch++; - *pval = expr_sum(mon); - *pp = pch; - return 0; -} - -static int get_double(Monitor *mon, double *pval, const char **pp) -{ - const char *p = *pp; - char *tailp; - double d; - - d = strtod(p, &tailp); - if (tailp == p) { - monitor_printf(mon, "Number expected\n"); - return -1; - } - if (d != d || d - d != 0) { - /* NaN or infinity */ - monitor_printf(mon, "Bad number\n"); - return -1; - } - *pval = d; - *pp = tailp; - return 0; -} - -/* - * Store the command-name in cmdname, and return a pointer to - * the remaining of the command string. - */ -static const char *get_command_name(const char *cmdline, - char *cmdname, size_t nlen) -{ - size_t len; - const char *p, *pstart; - - p = cmdline; - while (qemu_isspace(*p)) - p++; - if (*p == '\0') - return NULL; - pstart = p; - while (*p != '\0' && *p != '/' && !qemu_isspace(*p)) - p++; - len = p - pstart; - if (len > nlen - 1) - len = nlen - 1; - memcpy(cmdname, pstart, len); - cmdname[len] = '\0'; - return p; -} - -/** - * Read key of 'type' into 'key' and return the current - * 'type' pointer. - */ -static char *key_get_info(const char *type, char **key) -{ - size_t len; - char *p, *str; - - if (*type == ',') - type++; - - p = strchr(type, ':'); - if (!p) { - *key = NULL; - return NULL; - } - len = p - type; - - str = g_malloc(len + 1); - memcpy(str, type, len); - str[len] = '\0'; - - *key = str; - return ++p; -} - -static int default_fmt_format = 'x'; -static int default_fmt_size = 4; - -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 *search_dispatch_table(const mon_cmd_t *disp_table, - const char *cmdname) -{ - const mon_cmd_t *cmd; - - for (cmd = disp_table; cmd->name != NULL; cmd++) { - if (compare_cmd(cmdname, cmd->name)) { - return cmd; - } - } - - return NULL; -} - -static const mon_cmd_t *qmp_find_cmd(const char *cmdname) -{ - return search_dispatch_table(qmp_cmds, cmdname); -} - -/* - * Parse command name from @cmdp according to command table @table. - * If blank, return NULL. - * Else, if no valid command can be found, report to @mon, and return - * NULL. - * Else, change @cmdp to point right behind the name, and return its - * command table entry. - * Do not assume the return value points into @table! It doesn't when - * the command is found in a sub-command table. - */ -static const mon_cmd_t *monitor_parse_command(Monitor *mon, - const char **cmdp, - mon_cmd_t *table) -{ - const char *p; - const mon_cmd_t *cmd; - char cmdname[256]; - - /* extract the command name */ - p = get_command_name(*cmdp, cmdname, sizeof(cmdname)); - if (!p) - return NULL; - - cmd = search_dispatch_table(table, cmdname); - if (!cmd) { - monitor_printf(mon, "unknown command: '%.*s'\n", - (int)(p - *cmdp), *cmdp); - return NULL; - } - - /* filter out following useless space */ - while (qemu_isspace(*p)) { - p++; - } - - *cmdp = p; - /* search sub command */ - if (cmd->sub_table != NULL && *p != '\0') { - return monitor_parse_command(mon, cmdp, cmd->sub_table); - } - - return cmd; -} - -/* - * Parse arguments for @cmd. - * If it can't be parsed, report to @mon, and return NULL. - * Else, insert command arguments into a QDict, and return it. - * Note: On success, caller has to free the QDict structure. - */ - -static QDict *monitor_parse_arguments(Monitor *mon, - const char **endp, - const mon_cmd_t *cmd) -{ - const char *typestr; - char *key; - int c; - const char *p = *endp; - char buf[1024]; - QDict *qdict = qdict_new(); - - /* parse the parameters */ - typestr = cmd->args_type; - for(;;) { - typestr = key_get_info(typestr, &key); - if (!typestr) - break; - c = *typestr; - typestr++; - switch(c) { - case 'F': - case 'B': - case 's': - { - int ret; - - while (qemu_isspace(*p)) - p++; - if (*typestr == '?') { - typestr++; - if (*p == '\0') { - /* no optional string: NULL argument */ - break; - } - } - ret = get_str(buf, sizeof(buf), &p); - if (ret < 0) { - switch(c) { - case 'F': - monitor_printf(mon, "%s: filename expected\n", - cmd->name); - break; - case 'B': - monitor_printf(mon, "%s: block device name expected\n", - cmd->name); - break; - default: - monitor_printf(mon, "%s: string expected\n", cmd->name); - break; - } - goto fail; - } - qdict_put(qdict, key, qstring_from_str(buf)); - } - break; - case 'O': - { - QemuOptsList *opts_list; - QemuOpts *opts; - - opts_list = qemu_find_opts(key); - if (!opts_list || opts_list->desc->name) { - goto bad_type; - } - while (qemu_isspace(*p)) { - p++; - } - if (!*p) - break; - if (get_str(buf, sizeof(buf), &p) < 0) { - goto fail; - } - opts = qemu_opts_parse_noisily(opts_list, buf, true); - if (!opts) { - goto fail; - } - qemu_opts_to_qdict(opts, qdict); - qemu_opts_del(opts); - } - break; - case '/': - { - int count, format, size; - - while (qemu_isspace(*p)) - p++; - if (*p == '/') { - /* format found */ - p++; - count = 1; - if (qemu_isdigit(*p)) { - count = 0; - while (qemu_isdigit(*p)) { - count = count * 10 + (*p - '0'); - p++; - } - } - size = -1; - format = -1; - for(;;) { - switch(*p) { - case 'o': - case 'd': - case 'u': - case 'x': - case 'i': - case 'c': - format = *p++; - break; - case 'b': - size = 1; - p++; - break; - case 'h': - size = 2; - p++; - break; - case 'w': - size = 4; - p++; - break; - case 'g': - case 'L': - size = 8; - p++; - break; - default: - goto next; - } - } - next: - if (*p != '\0' && !qemu_isspace(*p)) { - monitor_printf(mon, "invalid char in format: '%c'\n", - *p); - goto fail; - } - if (format < 0) - format = default_fmt_format; - if (format != 'i') { - /* for 'i', not specifying a size gives -1 as size */ - if (size < 0) - size = default_fmt_size; - default_fmt_size = size; - } - default_fmt_format = format; - } else { - count = 1; - format = default_fmt_format; - if (format != 'i') { - size = default_fmt_size; - } else { - size = -1; - } - } - qdict_put(qdict, "count", qint_from_int(count)); - qdict_put(qdict, "format", qint_from_int(format)); - qdict_put(qdict, "size", qint_from_int(size)); - } - break; - case 'i': - case 'l': - case 'M': - { - int64_t val; - - while (qemu_isspace(*p)) - p++; - if (*typestr == '?' || *typestr == '.') { - if (*typestr == '?') { - if (*p == '\0') { - typestr++; - break; - } - } else { - if (*p == '.') { - p++; - while (qemu_isspace(*p)) - p++; - } else { - typestr++; - break; - } - } - typestr++; - } - if (get_expr(mon, &val, &p)) - goto fail; - /* Check if 'i' is greater than 32-bit */ - if ((c == 'i') && ((val >> 32) & 0xffffffff)) { - monitor_printf(mon, "\'%s\' has failed: ", cmd->name); - monitor_printf(mon, "integer is for 32-bit values\n"); - goto fail; - } else if (c == 'M') { - if (val < 0) { - monitor_printf(mon, "enter a positive value\n"); - goto fail; - } - val <<= 20; - } - qdict_put(qdict, key, qint_from_int(val)); - } - break; - case 'o': - { - int64_t val; - char *end; - - while (qemu_isspace(*p)) { - p++; - } - if (*typestr == '?') { - typestr++; - if (*p == '\0') { - break; - } - } - val = qemu_strtosz(p, &end); - if (val < 0) { - monitor_printf(mon, "invalid size\n"); - goto fail; - } - qdict_put(qdict, key, qint_from_int(val)); - p = end; - } - break; - case 'T': - { - double val; - - while (qemu_isspace(*p)) - p++; - if (*typestr == '?') { - typestr++; - if (*p == '\0') { - break; - } - } - if (get_double(mon, &val, &p) < 0) { - goto fail; - } - if (p[0] && p[1] == 's') { - switch (*p) { - case 'm': - val /= 1e3; p += 2; break; - case 'u': - val /= 1e6; p += 2; break; - case 'n': - val /= 1e9; p += 2; break; - } - } - if (*p && !qemu_isspace(*p)) { - monitor_printf(mon, "Unknown unit suffix\n"); - goto fail; - } - qdict_put(qdict, key, qfloat_from_double(val)); - } - break; - case 'b': - { - const char *beg; - bool val; - - while (qemu_isspace(*p)) { - p++; - } - beg = p; - while (qemu_isgraph(*p)) { - p++; - } - if (p - beg == 2 && !memcmp(beg, "on", p - beg)) { - val = true; - } else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) { - val = false; - } else { - monitor_printf(mon, "Expected 'on' or 'off'\n"); - goto fail; - } - qdict_put(qdict, key, qbool_from_bool(val)); - } - break; - case '-': - { - const char *tmp = p; - int skip_key = 0; - /* option */ - - c = *typestr++; - if (c == '\0') - goto bad_type; - while (qemu_isspace(*p)) - p++; - if (*p == '-') { - p++; - if(c != *p) { - if(!is_valid_option(p, typestr)) { - - monitor_printf(mon, "%s: unsupported option -%c\n", - cmd->name, *p); - goto fail; - } else { - skip_key = 1; - } - } - if(skip_key) { - p = tmp; - } else { - /* has option */ - p++; - qdict_put(qdict, key, qbool_from_bool(true)); - } - } - } - break; - case 'S': - { - /* package all remaining string */ - int len; - - while (qemu_isspace(*p)) { - p++; - } - if (*typestr == '?') { - typestr++; - if (*p == '\0') { - /* no remaining string: NULL argument */ - break; - } - } - len = strlen(p); - if (len <= 0) { - monitor_printf(mon, "%s: string expected\n", - cmd->name); - goto fail; - } - qdict_put(qdict, key, qstring_from_str(p)); - p += len; - } - break; - default: - bad_type: - monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c); - goto fail; - } - g_free(key); - key = NULL; - } - /* check that all arguments were parsed */ - while (qemu_isspace(*p)) - p++; - if (*p != '\0') { - monitor_printf(mon, "%s: extraneous characters at the end of line\n", - cmd->name); - goto fail; - } - - return qdict; - -fail: - QDECREF(qdict); - g_free(key); - return NULL; -} - -static void handle_hmp_command(Monitor *mon, const char *cmdline) -{ - QDict *qdict; - const mon_cmd_t *cmd; - - cmd = monitor_parse_command(mon, &cmdline, mon->cmd_table); - if (!cmd) { - return; - } - - qdict = monitor_parse_arguments(mon, &cmdline, cmd); - if (!qdict) { - monitor_printf(mon, "Try \"help %s\" for more information\n", - cmd->name); - return; - } - - cmd->mhandler.cmd(mon, qdict); - QDECREF(qdict); -} - -static void cmd_completion(Monitor *mon, const char *name, const char *list) -{ - const char *p, *pstart; - char cmd[128]; - int len; - - p = list; - for(;;) { - pstart = p; - p = strchr(p, '|'); - if (!p) - p = pstart + strlen(pstart); - len = p - pstart; - if (len > sizeof(cmd) - 2) - len = sizeof(cmd) - 2; - memcpy(cmd, pstart, len); - cmd[len] = '\0'; - if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) { - readline_add_completion(mon->rs, cmd); - } - if (*p == '\0') - break; - p++; - } -} - -static void file_completion(Monitor *mon, const char *input) -{ - DIR *ffs; - struct dirent *d; - char path[1024]; - char file[1024], file_prefix[1024]; - int input_path_len; - const char *p; - - p = strrchr(input, '/'); - if (!p) { - input_path_len = 0; - pstrcpy(file_prefix, sizeof(file_prefix), input); - pstrcpy(path, sizeof(path), "."); - } else { - input_path_len = p - input + 1; - memcpy(path, input, input_path_len); - if (input_path_len > sizeof(path) - 1) - input_path_len = sizeof(path) - 1; - path[input_path_len] = '\0'; - pstrcpy(file_prefix, sizeof(file_prefix), p + 1); - } - - ffs = opendir(path); - if (!ffs) - return; - for(;;) { - struct stat sb; - d = readdir(ffs); - if (!d) - break; - - if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) { - continue; - } - - if (strstart(d->d_name, file_prefix, NULL)) { - memcpy(file, input, input_path_len); - if (input_path_len < sizeof(file)) - pstrcpy(file + input_path_len, sizeof(file) - input_path_len, - d->d_name); - /* stat the file to find out if it's a directory. - * In that case add a slash to speed up typing long paths - */ - if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) { - pstrcat(file, sizeof(file), "/"); - } - readline_add_completion(mon->rs, file); - } - } - closedir(ffs); -} - -static const char *next_arg_type(const char *typestr) -{ - const char *p = strchr(typestr, ':'); - return (p != NULL ? ++p : typestr); -} - -static void add_completion_option(ReadLineState *rs, const char *str, - const char *option) -{ - if (!str || !option) { - return; - } - if (!strncmp(option, str, strlen(str))) { - readline_add_completion(rs, option); - } -} - -void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str) -{ - size_t len; - ChardevBackendInfoList *list, *start; - - if (nb_args != 2) { - return; - } - len = strlen(str); - readline_set_completion_index(rs, len); - - start = list = qmp_query_chardev_backends(NULL); - while (list) { - const char *chr_name = list->value->name; - - if (!strncmp(chr_name, str, len)) { - readline_add_completion(rs, chr_name); - } - list = list->next; - } - qapi_free_ChardevBackendInfoList(start); -} - -void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str) -{ - size_t len; - int i; - - if (nb_args != 2) { - return; - } - len = strlen(str); - readline_set_completion_index(rs, len); - for (i = 0; NetClientOptionsKind_lookup[i]; i++) { - add_completion_option(rs, str, NetClientOptionsKind_lookup[i]); - } -} - -void device_add_completion(ReadLineState *rs, int nb_args, const char *str) -{ - GSList *list, *elt; - size_t len; - - if (nb_args != 2) { - return; - } - - len = strlen(str); - readline_set_completion_index(rs, len); - list = elt = object_class_get_list(TYPE_DEVICE, false); - while (elt) { - const char *name; - DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data, - TYPE_DEVICE); - name = object_class_get_name(OBJECT_CLASS(dc)); - - if (!dc->cannot_instantiate_with_device_add_yet - && !strncmp(name, str, len)) { - readline_add_completion(rs, name); - } - elt = elt->next; - } - g_slist_free(list); -} - -void object_add_completion(ReadLineState *rs, int nb_args, const char *str) -{ - GSList *list, *elt; - size_t len; - - if (nb_args != 2) { - return; - } - - len = strlen(str); - readline_set_completion_index(rs, len); - list = elt = object_class_get_list(TYPE_USER_CREATABLE, false); - while (elt) { - const char *name; - - name = object_class_get_name(OBJECT_CLASS(elt->data)); - if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) { - readline_add_completion(rs, name); - } - elt = elt->next; - } - g_slist_free(list); -} - -static void peripheral_device_del_completion(ReadLineState *rs, - const char *str, size_t len) -{ - Object *peripheral = container_get(qdev_get_machine(), "/peripheral"); - GSList *list, *item; - - list = qdev_build_hotpluggable_device_list(peripheral); - if (!list) { - return; - } - - for (item = list; item; item = g_slist_next(item)) { - DeviceState *dev = item->data; - - if (dev->id && !strncmp(str, dev->id, len)) { - readline_add_completion(rs, dev->id); - } - } - - g_slist_free(list); -} - -void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str) -{ - size_t len; - ChardevInfoList *list, *start; - - if (nb_args != 2) { - return; - } - len = strlen(str); - readline_set_completion_index(rs, len); - - start = list = qmp_query_chardev(NULL); - while (list) { - ChardevInfo *chr = list->value; - - if (!strncmp(chr->label, str, len)) { - readline_add_completion(rs, chr->label); - } - list = list->next; - } - qapi_free_ChardevInfoList(start); -} - -static void ringbuf_completion(ReadLineState *rs, const char *str) -{ - size_t len; - ChardevInfoList *list, *start; - - len = strlen(str); - readline_set_completion_index(rs, len); - - start = list = qmp_query_chardev(NULL); - while (list) { - ChardevInfo *chr_info = list->value; - - if (!strncmp(chr_info->label, str, len)) { - CharDriverState *chr = qemu_chr_find(chr_info->label); - if (chr && chr_is_ringbuf(chr)) { - readline_add_completion(rs, chr_info->label); - } - } - list = list->next; - } - qapi_free_ChardevInfoList(start); -} - -void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str) -{ - if (nb_args != 2) { - return; - } - ringbuf_completion(rs, str); -} - -void device_del_completion(ReadLineState *rs, int nb_args, const char *str) -{ - size_t len; - - if (nb_args != 2) { - return; - } - - len = strlen(str); - readline_set_completion_index(rs, len); - peripheral_device_del_completion(rs, str, len); -} - -void object_del_completion(ReadLineState *rs, int nb_args, const char *str) -{ - ObjectPropertyInfoList *list, *start; - size_t len; - - if (nb_args != 2) { - return; - } - len = strlen(str); - readline_set_completion_index(rs, len); - - start = list = qmp_qom_list("/objects", NULL); - while (list) { - ObjectPropertyInfo *info = list->value; - - if (!strncmp(info->type, "child<", 5) - && !strncmp(info->name, str, len)) { - readline_add_completion(rs, info->name); - } - list = list->next; - } - qapi_free_ObjectPropertyInfoList(start); -} - -void sendkey_completion(ReadLineState *rs, int nb_args, const char *str) -{ - int i; - char *sep; - size_t len; - - if (nb_args != 2) { - return; - } - sep = strrchr(str, '-'); - if (sep) { - str = sep + 1; - } - len = strlen(str); - readline_set_completion_index(rs, len); - for (i = 0; i < Q_KEY_CODE__MAX; i++) { - if (!strncmp(str, QKeyCode_lookup[i], len)) { - readline_add_completion(rs, QKeyCode_lookup[i]); - } - } -} - -void set_link_completion(ReadLineState *rs, int nb_args, const char *str) -{ - size_t len; - - len = strlen(str); - readline_set_completion_index(rs, len); - if (nb_args == 2) { - NetClientState *ncs[MAX_QUEUE_NUM]; - int count, i; - count = qemu_find_net_clients_except(NULL, ncs, - NET_CLIENT_OPTIONS_KIND_NONE, - MAX_QUEUE_NUM); - for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { - const char *name = ncs[i]->name; - if (!strncmp(str, name, len)) { - readline_add_completion(rs, name); - } - } - } else if (nb_args == 3) { - add_completion_option(rs, str, "on"); - add_completion_option(rs, str, "off"); - } -} - -void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str) -{ - int len, count, i; - NetClientState *ncs[MAX_QUEUE_NUM]; - - if (nb_args != 2) { - return; - } - - len = strlen(str); - readline_set_completion_index(rs, len); - count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_OPTIONS_KIND_NIC, - MAX_QUEUE_NUM); - for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { - QemuOpts *opts; - const char *name = ncs[i]->name; - if (strncmp(str, name, len)) { - continue; - } - opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name); - if (opts) { - readline_add_completion(rs, name); - } - } -} - -void trace_event_completion(ReadLineState *rs, int nb_args, const char *str) -{ - size_t len; - - len = strlen(str); - readline_set_completion_index(rs, len); - if (nb_args == 2) { - TraceEventID id; - for (id = 0; id < trace_event_count(); id++) { - const char *event_name = trace_event_get_name(trace_event_id(id)); - if (!strncmp(str, event_name, len)) { - readline_add_completion(rs, event_name); - } - } - } else if (nb_args == 3) { - add_completion_option(rs, str, "on"); - add_completion_option(rs, str, "off"); - } -} - -void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str) -{ - int i; - - if (nb_args != 2) { - return; - } - readline_set_completion_index(rs, strlen(str)); - for (i = 0; WatchdogExpirationAction_lookup[i]; i++) { - add_completion_option(rs, str, WatchdogExpirationAction_lookup[i]); - } -} - -void migrate_set_capability_completion(ReadLineState *rs, int nb_args, - const char *str) -{ - size_t len; - - len = strlen(str); - readline_set_completion_index(rs, len); - if (nb_args == 2) { - int i; - for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) { - const char *name = MigrationCapability_lookup[i]; - if (!strncmp(str, name, len)) { - readline_add_completion(rs, name); - } - } - } else if (nb_args == 3) { - add_completion_option(rs, str, "on"); - add_completion_option(rs, str, "off"); - } -} - -void migrate_set_parameter_completion(ReadLineState *rs, int nb_args, - const char *str) -{ - size_t len; - - len = strlen(str); - readline_set_completion_index(rs, len); - if (nb_args == 2) { - int i; - for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) { - const char *name = MigrationParameter_lookup[i]; - if (!strncmp(str, name, len)) { - readline_add_completion(rs, name); - } - } - } -} - -void host_net_add_completion(ReadLineState *rs, int nb_args, const char *str) -{ - int i; - size_t len; - if (nb_args != 2) { - return; - } - len = strlen(str); - readline_set_completion_index(rs, len); - for (i = 0; host_net_devices[i]; i++) { - if (!strncmp(host_net_devices[i], str, len)) { - readline_add_completion(rs, host_net_devices[i]); - } - } -} - -void host_net_remove_completion(ReadLineState *rs, int nb_args, const char *str) -{ - NetClientState *ncs[MAX_QUEUE_NUM]; - int count, i, len; - - len = strlen(str); - readline_set_completion_index(rs, len); - if (nb_args == 2) { - count = qemu_find_net_clients_except(NULL, ncs, - NET_CLIENT_OPTIONS_KIND_NONE, - MAX_QUEUE_NUM); - for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { - int id; - char name[16]; - - if (net_hub_id_for_client(ncs[i], &id)) { - continue; - } - snprintf(name, sizeof(name), "%d", id); - if (!strncmp(str, name, len)) { - readline_add_completion(rs, name); - } - } - return; - } else if (nb_args == 3) { - count = qemu_find_net_clients_except(NULL, ncs, - NET_CLIENT_OPTIONS_KIND_NIC, - MAX_QUEUE_NUM); - for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) { - int id; - const char *name; - - if (ncs[i]->info->type == NET_CLIENT_OPTIONS_KIND_HUBPORT || - net_hub_id_for_client(ncs[i], &id)) { - continue; - } - name = ncs[i]->name; - if (!strncmp(str, name, len)) { - readline_add_completion(rs, name); - } - } - return; - } -} - -static void vm_completion(ReadLineState *rs, const char *str) -{ - size_t len; - BlockDriverState *bs = NULL; - - len = strlen(str); - readline_set_completion_index(rs, len); - while ((bs = bdrv_next(bs))) { - SnapshotInfoList *snapshots, *snapshot; - AioContext *ctx = bdrv_get_aio_context(bs); - bool ok = false; - - aio_context_acquire(ctx); - if (bdrv_can_snapshot(bs)) { - ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0; - } - aio_context_release(ctx); - if (!ok) { - continue; - } - - snapshot = snapshots; - while (snapshot) { - char *completion = snapshot->value->name; - if (!strncmp(str, completion, len)) { - readline_add_completion(rs, completion); - } - completion = snapshot->value->id; - if (!strncmp(str, completion, len)) { - readline_add_completion(rs, completion); - } - snapshot = snapshot->next; - } - qapi_free_SnapshotInfoList(snapshots); - } - -} - -void delvm_completion(ReadLineState *rs, int nb_args, const char *str) -{ - if (nb_args == 2) { - vm_completion(rs, str); - } -} - -void loadvm_completion(ReadLineState *rs, int nb_args, const char *str) -{ - if (nb_args == 2) { - vm_completion(rs, str); - } -} - -static void monitor_find_completion_by_table(Monitor *mon, - const mon_cmd_t *cmd_table, - char **args, - int nb_args) -{ - const char *cmdname; - int i; - const char *ptype, *str, *name; - const mon_cmd_t *cmd; - BlockBackend *blk = NULL; - - if (nb_args <= 1) { - /* command completion */ - if (nb_args == 0) - cmdname = ""; - else - cmdname = args[0]; - readline_set_completion_index(mon->rs, strlen(cmdname)); - for (cmd = cmd_table; cmd->name != NULL; cmd++) { - cmd_completion(mon, cmdname, cmd->name); - } - } else { - /* find the command */ - for (cmd = cmd_table; cmd->name != NULL; cmd++) { - if (compare_cmd(args[0], cmd->name)) { - break; - } - } - if (!cmd->name) { - return; - } - - if (cmd->sub_table) { - /* do the job again */ - monitor_find_completion_by_table(mon, cmd->sub_table, - &args[1], nb_args - 1); - return; - } - if (cmd->command_completion) { - cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]); - return; - } - - ptype = next_arg_type(cmd->args_type); - for(i = 0; i < nb_args - 2; i++) { - if (*ptype != '\0') { - ptype = next_arg_type(ptype); - while (*ptype == '?') - ptype = next_arg_type(ptype); - } - } - str = args[nb_args - 1]; - while (*ptype == '-' && ptype[1] != '\0') { - ptype = next_arg_type(ptype); - } - switch(*ptype) { - case 'F': - /* file completion */ - readline_set_completion_index(mon->rs, strlen(str)); - file_completion(mon, str); - break; - case 'B': - /* block device name completion */ - readline_set_completion_index(mon->rs, strlen(str)); - while ((blk = blk_next(blk)) != NULL) { - name = blk_name(blk); - if (str[0] == '\0' || - !strncmp(name, str, strlen(str))) { - readline_add_completion(mon->rs, name); - } - } - break; - case 's': - case 'S': - if (!strcmp(cmd->name, "help|?")) { - monitor_find_completion_by_table(mon, cmd_table, - &args[1], nb_args - 1); - } - break; - default: - break; - } - } -} - -static void monitor_find_completion(void *opaque, - const char *cmdline) -{ - Monitor *mon = opaque; - char *args[MAX_ARGS]; - int nb_args, len; - - /* 1. parse the cmdline */ - if (parse_cmdline(cmdline, &nb_args, args) < 0) { - return; - } - - /* if the line ends with a space, it means we want to complete the - next arg */ - len = strlen(cmdline); - if (len > 0 && qemu_isspace(cmdline[len - 1])) { - if (nb_args >= MAX_ARGS) { - goto cleanup; - } - args[nb_args++] = g_strdup(""); - } - - /* 2. auto complete according to args */ - monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args); - -cleanup: - free_cmdline_args(args, nb_args); -} - -static int monitor_can_read(void *opaque) -{ - Monitor *mon = opaque; - - return (mon->suspend_cnt == 0) ? 1 : 0; -} - -static bool invalid_qmp_mode(const Monitor *mon, const mon_cmd_t *cmd, - Error **errp) -{ - bool is_cap = cmd->mhandler.cmd_new == qmp_capabilities; - - if (is_cap && mon->qmp.in_command_mode) { - error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND, - "Capabilities negotiation is already complete, command " - "'%s' ignored", cmd->name); - return true; - } - if (!is_cap && !mon->qmp.in_command_mode) { - error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND, - "Expecting capabilities negotiation with " - "'qmp_capabilities' before command '%s'", cmd->name); - return true; - } - return false; -} - -/* - * Argument validation rules: - * - * 1. The argument must exist in cmd_args qdict - * 2. The argument type must be the expected one - * - * Special case: If the argument doesn't exist in cmd_args and - * the QMP_ACCEPT_UNKNOWNS flag is set, then the - * checking is skipped for it. - */ -static void check_client_args_type(const QDict *client_args, - const QDict *cmd_args, int flags, - Error **errp) -{ - const QDictEntry *ent; - - for (ent = qdict_first(client_args); ent;ent = qdict_next(client_args,ent)){ - QObject *obj; - QString *arg_type; - const QObject *client_arg = qdict_entry_value(ent); - const char *client_arg_name = qdict_entry_key(ent); - - obj = qdict_get(cmd_args, client_arg_name); - if (!obj) { - if (flags & QMP_ACCEPT_UNKNOWNS) { - /* handler accepts unknowns */ - continue; - } - /* client arg doesn't exist */ - error_setg(errp, QERR_INVALID_PARAMETER, client_arg_name); - return; - } - - arg_type = qobject_to_qstring(obj); - assert(arg_type != NULL); - - /* check if argument's type is correct */ - switch (qstring_get_str(arg_type)[0]) { - case 'F': - case 'B': - case 's': - if (qobject_type(client_arg) != QTYPE_QSTRING) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, - client_arg_name, "string"); - return; - } - break; - case 'i': - case 'l': - case 'M': - case 'o': - if (qobject_type(client_arg) != QTYPE_QINT) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, - client_arg_name, "int"); - return; - } - break; - case 'T': - if (qobject_type(client_arg) != QTYPE_QINT && - qobject_type(client_arg) != QTYPE_QFLOAT) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, - client_arg_name, "number"); - return; - } - break; - case 'b': - case '-': - if (qobject_type(client_arg) != QTYPE_QBOOL) { - error_setg(errp, QERR_INVALID_PARAMETER_TYPE, - client_arg_name, "bool"); - return; - } - break; - case 'O': - assert(flags & QMP_ACCEPT_UNKNOWNS); - break; - case 'q': - /* Any QObject can be passed. */ - break; - case '/': - case '.': - /* - * These types are not supported by QMP and thus are not - * handled here. Fall through. - */ - default: - abort(); - } - } -} - -/* - * - Check if the client has passed all mandatory args - * - Set special flags for argument validation - */ -static void check_mandatory_args(const QDict *cmd_args, - const QDict *client_args, int *flags, - Error **errp) -{ - const QDictEntry *ent; - - for (ent = qdict_first(cmd_args); ent; ent = qdict_next(cmd_args, ent)) { - const char *cmd_arg_name = qdict_entry_key(ent); - QString *type = qobject_to_qstring(qdict_entry_value(ent)); - assert(type != NULL); - - if (qstring_get_str(type)[0] == 'O') { - assert((*flags & QMP_ACCEPT_UNKNOWNS) == 0); - *flags |= QMP_ACCEPT_UNKNOWNS; - } else if (qstring_get_str(type)[0] != '-' && - qstring_get_str(type)[1] != '?' && - !qdict_haskey(client_args, cmd_arg_name)) { - error_setg(errp, QERR_MISSING_PARAMETER, cmd_arg_name); - return; - } - } -} - -static QDict *qdict_from_args_type(const char *args_type) -{ - int i; - QDict *qdict; - QString *key, *type, *cur_qs; - - assert(args_type != NULL); - - qdict = qdict_new(); - - if (args_type == NULL || args_type[0] == '\0') { - /* no args, empty qdict */ - goto out; - } - - key = qstring_new(); - type = qstring_new(); - - cur_qs = key; - - for (i = 0;; i++) { - switch (args_type[i]) { - case ',': - case '\0': - qdict_put(qdict, qstring_get_str(key), type); - QDECREF(key); - if (args_type[i] == '\0') { - goto out; - } - type = qstring_new(); /* qdict has ref */ - cur_qs = key = qstring_new(); - break; - case ':': - cur_qs = type; - break; - default: - qstring_append_chr(cur_qs, args_type[i]); - break; - } - } - -out: - return qdict; -} - -/* - * Client argument checking rules: - * - * 1. Client must provide all mandatory arguments - * 2. Each argument provided by the client must be expected - * 3. Each argument provided by the client must have the type expected - * by the command - */ -static void qmp_check_client_args(const mon_cmd_t *cmd, QDict *client_args, - Error **errp) -{ - Error *err = NULL; - int flags; - QDict *cmd_args; - - cmd_args = qdict_from_args_type(cmd->args_type); - - flags = 0; - check_mandatory_args(cmd_args, client_args, &flags, &err); - if (err) { - goto out; - } - - check_client_args_type(client_args, cmd_args, flags, &err); - -out: - error_propagate(errp, err); - QDECREF(cmd_args); -} - -/* - * Input object checking rules - * - * 1. Input object must be a dict - * 2. The "execute" key must exist - * 3. The "execute" key must be a string - * 4. If the "arguments" key exists, it must be a dict - * 5. If the "id" key exists, it can be anything (ie. json-value) - * 6. Any argument not listed above is considered invalid - */ -static QDict *qmp_check_input_obj(QObject *input_obj, Error **errp) -{ - const QDictEntry *ent; - int has_exec_key = 0; - QDict *input_dict; - - if (qobject_type(input_obj) != QTYPE_QDICT) { - error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "object"); - return NULL; - } - - input_dict = qobject_to_qdict(input_obj); - - for (ent = qdict_first(input_dict); ent; ent = qdict_next(input_dict, ent)){ - const char *arg_name = qdict_entry_key(ent); - const QObject *arg_obj = qdict_entry_value(ent); - - if (!strcmp(arg_name, "execute")) { - if (qobject_type(arg_obj) != QTYPE_QSTRING) { - error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER, - "execute", "string"); - return NULL; - } - has_exec_key = 1; - } else if (!strcmp(arg_name, "arguments")) { - if (qobject_type(arg_obj) != QTYPE_QDICT) { - error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT_MEMBER, - "arguments", "object"); - return NULL; - } - } else if (!strcmp(arg_name, "id")) { - /* Any string is acceptable as "id", so nothing to check */ - } else { - error_setg(errp, QERR_QMP_EXTRA_MEMBER, arg_name); - return NULL; - } - } - - if (!has_exec_key) { - error_setg(errp, QERR_QMP_BAD_INPUT_OBJECT, "execute"); - return NULL; - } - - return input_dict; -} - -static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens) -{ - Error *local_err = NULL; - QObject *obj, *data; - QDict *input, *args; - const mon_cmd_t *cmd; - const char *cmd_name; - Monitor *mon = cur_mon; - - args = input = NULL; - data = NULL; - - obj = json_parser_parse(tokens, NULL); - if (!obj) { - // FIXME: should be triggered in json_parser_parse() - error_setg(&local_err, QERR_JSON_PARSING); - goto err_out; - } - - input = qmp_check_input_obj(obj, &local_err); - if (!input) { - qobject_decref(obj); - goto err_out; - } - - mon->qmp.id = qdict_get(input, "id"); - qobject_incref(mon->qmp.id); - - cmd_name = qdict_get_str(input, "execute"); - trace_handle_qmp_command(mon, cmd_name); - cmd = qmp_find_cmd(cmd_name); - if (!cmd) { - error_set(&local_err, ERROR_CLASS_COMMAND_NOT_FOUND, - "The command %s has not been found", cmd_name); - goto err_out; - } - if (invalid_qmp_mode(mon, cmd, &local_err)) { - goto err_out; - } - - obj = qdict_get(input, "arguments"); - if (!obj) { - args = qdict_new(); - } else { - args = qobject_to_qdict(obj); - QINCREF(args); - } - - qmp_check_client_args(cmd, args, &local_err); - if (local_err) { - goto err_out; - } - - cmd->mhandler.cmd_new(args, &data, &local_err); - -err_out: - monitor_protocol_emitter(mon, data, local_err); - qobject_decref(data); - error_free(local_err); - QDECREF(input); - QDECREF(args); -} - -static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size) -{ - Monitor *old_mon = cur_mon; - - cur_mon = opaque; - - json_message_parser_feed(&cur_mon->qmp.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; - int i; - - cur_mon = opaque; - - if (cur_mon->rs) { - for (i = 0; i < size; i++) - readline_handle_byte(cur_mon->rs, buf[i]); - } else { - if (size == 0 || buf[size - 1] != 0) - monitor_printf(cur_mon, "corrupted command\n"); - else - handle_hmp_command(cur_mon, (char *)buf); - } - - cur_mon = old_mon; -} - -static void monitor_command_cb(void *opaque, const char *cmdline, - void *readline_opaque) -{ - Monitor *mon = opaque; - - monitor_suspend(mon); - handle_hmp_command(mon, cmdline); - monitor_resume(mon); -} - -int monitor_suspend(Monitor *mon) -{ - if (!mon->rs) - return -ENOTTY; - mon->suspend_cnt++; - return 0; -} - -void monitor_resume(Monitor *mon) -{ - if (!mon->rs) - return; - if (--mon->suspend_cnt == 0) - readline_show_prompt(mon->rs); -} - -static QObject *get_qmp_greeting(void) -{ - QObject *ver = NULL; - - qmp_marshal_query_version(NULL, &ver, NULL); - return qobject_from_jsonf("{'QMP':{'version': %p,'capabilities': []}}",ver); -} - -static void monitor_qmp_event(void *opaque, int event) -{ - QObject *data; - Monitor *mon = opaque; - - switch (event) { - case CHR_EVENT_OPENED: - mon->qmp.in_command_mode = false; - data = get_qmp_greeting(); - monitor_json_emitter(mon, data); - qobject_decref(data); - mon_refcount++; - break; - case CHR_EVENT_CLOSED: - json_message_parser_destroy(&mon->qmp.parser); - json_message_parser_init(&mon->qmp.parser, handle_qmp_command); - mon_refcount--; - monitor_fdsets_cleanup(); - break; - } -} - -static void monitor_event(void *opaque, int event) -{ - Monitor *mon = opaque; - - switch (event) { - case CHR_EVENT_MUX_IN: - qemu_mutex_lock(&mon->out_lock); - mon->mux_out = 0; - qemu_mutex_unlock(&mon->out_lock); - if (mon->reset_seen) { - readline_restart(mon->rs); - monitor_resume(mon); - monitor_flush(mon); - } else { - mon->suspend_cnt = 0; - } - break; - - case CHR_EVENT_MUX_OUT: - if (mon->reset_seen) { - if (mon->suspend_cnt == 0) { - monitor_printf(mon, "\n"); - } - monitor_flush(mon); - monitor_suspend(mon); - } else { - mon->suspend_cnt++; - } - qemu_mutex_lock(&mon->out_lock); - mon->mux_out = 1; - qemu_mutex_unlock(&mon->out_lock); - break; - - case CHR_EVENT_OPENED: - monitor_printf(mon, "QEMU %s monitor - type 'help' for more " - "information\n", QEMU_VERSION); - if (!mon->mux_out) { - readline_restart(mon->rs); - readline_show_prompt(mon->rs); - } - mon->reset_seen = 1; - mon_refcount++; - break; - - case CHR_EVENT_CLOSED: - mon_refcount--; - monitor_fdsets_cleanup(); - break; - } -} - -static int -compare_mon_cmd(const void *a, const void *b) -{ - return strcmp(((const mon_cmd_t *)a)->name, - ((const mon_cmd_t *)b)->name); -} - -static void sortcmdlist(void) -{ - int array_num; - int elem_size = sizeof(mon_cmd_t); - - array_num = sizeof(mon_cmds)/elem_size-1; - qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd); - - array_num = sizeof(info_cmds)/elem_size-1; - qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd); -} - - -/* - * Local variables: - * c-indent-level: 4 - * c-basic-offset: 4 - * tab-width: 8 - * End: - */ - -/* These functions just adapt the readline interface in a typesafe way. We - * could cast function pointers but that discards compiler checks. - */ -static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque, - const char *fmt, ...) -{ - va_list ap; - va_start(ap, fmt); - monitor_vprintf(opaque, fmt, ap); - va_end(ap); -} - -static void monitor_readline_flush(void *opaque) -{ - monitor_flush(opaque); -} - -static void __attribute__((constructor)) monitor_lock_init(void) -{ - qemu_mutex_init(&monitor_lock); -} - -void monitor_init(CharDriverState *chr, int flags) -{ - static int is_first_init = 1; - Monitor *mon; - - if (is_first_init) { - monitor_qapi_event_init(); - sortcmdlist(); - is_first_init = 0; - } - - mon = g_malloc(sizeof(*mon)); - monitor_data_init(mon); - - mon->chr = chr; - mon->flags = flags; - if (flags & MONITOR_USE_READLINE) { - mon->rs = readline_init(monitor_readline_printf, - monitor_readline_flush, - mon, - monitor_find_completion); - monitor_read_command(mon, 0); - } - - if (monitor_is_qmp(mon)) { - qemu_chr_add_handlers(chr, monitor_can_read, monitor_qmp_read, - monitor_qmp_event, mon); - qemu_chr_fe_set_echo(chr, true); - json_message_parser_init(&mon->qmp.parser, handle_qmp_command); - } else { - qemu_chr_add_handlers(chr, monitor_can_read, monitor_read, - monitor_event, mon); - } - - qemu_mutex_lock(&monitor_lock); - QLIST_INSERT_HEAD(&mon_list, mon, entry); - qemu_mutex_unlock(&monitor_lock); -} - -static void bdrv_password_cb(void *opaque, const char *password, - void *readline_opaque) -{ - Monitor *mon = opaque; - BlockDriverState *bs = readline_opaque; - int ret = 0; - Error *local_err = NULL; - - bdrv_add_key(bs, password, &local_err); - if (local_err) { - error_report_err(local_err); - ret = -EPERM; - } - if (mon->password_completion_cb) - mon->password_completion_cb(mon->password_opaque, ret); - - monitor_read_command(mon, 1); -} - -int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs, - BlockCompletionFunc *completion_cb, - void *opaque) -{ - int err; - - monitor_printf(mon, "%s (%s) is encrypted.\n", bdrv_get_device_name(bs), - bdrv_get_encrypted_filename(bs)); - - mon->password_completion_cb = completion_cb; - mon->password_opaque = opaque; - - err = monitor_read_password(mon, bdrv_password_cb, bs); - - if (err && completion_cb) - completion_cb(opaque, err); - - return err; -} - -int monitor_read_block_device_key(Monitor *mon, const char *device, - BlockCompletionFunc *completion_cb, - void *opaque) -{ - Error *err = NULL; - BlockBackend *blk; - - blk = blk_by_name(device); - if (!blk) { - monitor_printf(mon, "Device not found %s\n", device); - return -1; - } - if (!blk_bs(blk)) { - monitor_printf(mon, "Device '%s' has no medium\n", device); - return -1; - } - - bdrv_add_key(blk_bs(blk), NULL, &err); - if (err) { - error_free(err); - return monitor_read_bdrv_key_start(mon, blk_bs(blk), completion_cb, opaque); - } - - if (completion_cb) { - completion_cb(opaque, 0); - } - return 0; -} - -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 */ } - }, -}; - -#ifndef TARGET_I386 -void qmp_rtc_reset_reinjection(Error **errp) -{ - error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection"); -} -#endif - -#ifndef TARGET_S390X -void qmp_dump_skeys(const char *filename, Error **errp) -{ - error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys"); -} -#endif - -#ifndef TARGET_ARM -GICCapabilityList *qmp_query_gic_capabilities(Error **errp) -{ - error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities"); - return NULL; -} -#endif |