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- /*
- * HMP commands related to character devices
- *
- * Copyright IBM, Corp. 2011
- *
- * Authors:
- * Anthony Liguori <aliguori@us.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
- #include "qemu/osdep.h"
- #include "chardev/char.h"
- #include "monitor/hmp.h"
- #include "monitor/monitor.h"
- #include "qapi/error.h"
- #include "qapi/qapi-commands-char.h"
- #include "qapi/qmp/qdict.h"
- #include "qemu/config-file.h"
- #include "qemu/option.h"
- void hmp_info_chardev(Monitor *mon, const QDict *qdict)
- {
- ChardevInfoList *char_info, *info;
- char_info = qmp_query_chardev(NULL);
- for (info = char_info; info; info = info->next) {
- monitor_printf(mon, "%s: filename=%s\n", info->value->label,
- info->value->filename);
- }
- qapi_free_ChardevInfoList(char_info);
- }
- void hmp_ringbuf_write(Monitor *mon, const QDict *qdict)
- {
- const char *chardev = qdict_get_str(qdict, "device");
- const char *data = qdict_get_str(qdict, "data");
- Error *err = NULL;
- qmp_ringbuf_write(chardev, data, false, 0, &err);
- hmp_handle_error(mon, err);
- }
- void hmp_ringbuf_read(Monitor *mon, const QDict *qdict)
- {
- uint32_t size = qdict_get_int(qdict, "size");
- const char *chardev = qdict_get_str(qdict, "device");
- char *data;
- Error *err = NULL;
- int i;
- data = qmp_ringbuf_read(chardev, size, false, 0, &err);
- if (hmp_handle_error(mon, err)) {
- return;
- }
- for (i = 0; data[i]; i++) {
- unsigned char ch = data[i];
- if (ch == '\\') {
- monitor_printf(mon, "\\\\");
- } else if ((ch < 0x20 && ch != '\n' && ch != '\t') || ch == 0x7F) {
- monitor_printf(mon, "\\u%04X", ch);
- } else {
- monitor_printf(mon, "%c", ch);
- }
- }
- monitor_printf(mon, "\n");
- g_free(data);
- }
- void hmp_chardev_add(Monitor *mon, const QDict *qdict)
- {
- const char *args = qdict_get_str(qdict, "args");
- Error *err = NULL;
- QemuOpts *opts;
- opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), args, true);
- if (opts == NULL) {
- error_setg(&err, "Parsing chardev args failed");
- } else {
- qemu_chr_new_from_opts(opts, NULL, &err);
- qemu_opts_del(opts);
- }
- hmp_handle_error(mon, err);
- }
- void hmp_chardev_change(Monitor *mon, const QDict *qdict)
- {
- const char *args = qdict_get_str(qdict, "args");
- const char *id;
- Error *err = NULL;
- ChardevBackend *backend = NULL;
- ChardevReturn *ret = NULL;
- QemuOpts *opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), args,
- true);
- if (!opts) {
- error_setg(&err, "Parsing chardev args failed");
- goto end;
- }
- id = qdict_get_str(qdict, "id");
- if (qemu_opts_id(opts)) {
- error_setg(&err, "Unexpected 'id' parameter");
- goto end;
- }
- backend = qemu_chr_parse_opts(opts, &err);
- if (!backend) {
- goto end;
- }
- ret = qmp_chardev_change(id, backend, &err);
- end:
- qapi_free_ChardevReturn(ret);
- qapi_free_ChardevBackend(backend);
- qemu_opts_del(opts);
- hmp_handle_error(mon, err);
- }
- void hmp_chardev_remove(Monitor *mon, const QDict *qdict)
- {
- Error *local_err = NULL;
- qmp_chardev_remove(qdict_get_str(qdict, "id"), &local_err);
- hmp_handle_error(mon, local_err);
- }
- void hmp_chardev_send_break(Monitor *mon, const QDict *qdict)
- {
- Error *local_err = NULL;
- qmp_chardev_send_break(qdict_get_str(qdict, "id"), &local_err);
- hmp_handle_error(mon, local_err);
- }
- 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 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)) {
- Chardev *chr = qemu_chr_find(chr_info->label);
- if (chr && CHARDEV_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);
- }
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