/* * 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); }