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[libvirt] [PATCH 13/13] virsh, send-key: add --codeset xt:keystring support



It make send-key command more friendly for user.

Signed-off-by: Lai Jiangshan <laijs fujitsu com>
---
 tools/virsh.c |  224 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 221 insertions(+), 3 deletions(-)

diff --git a/tools/virsh.c b/tools/virsh.c
index 3bccc08..18ef4bb 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -3017,11 +3017,24 @@ cmdInjectNMI(vshControl *ctl, const vshCmd *cmd)
 static const vshCmdInfo info_send_key[] = {
     {"help", N_("Send keycodes to the guest")},
     {"desc", N_("Send keycodes to the guest, the keycodes must be integers\n"
+                "    or the qemu-style key strings for the \"xt:keystring\" codeset\n"
                 "    or the KEY_* strings listed below for the \"linux\" codeset.\n\n"
+                "    Available codeset:\n"
+                "        linux          the keycodes specified in \n"
+                "                        /usr/include/linux/input.h(default)\n"
+                "        default        linux codeset will be used\n"
+                "        driver_default the hypervisor default codeset will be used\n"
+                "        xt             XT(set1) scancode of standard AT keyboards and PS/2 keyboards\n"
+                "        atset1         set1 scancode of standard AT keyboards and PS/2 keyboards\n"
+                "        atset2         set2 scancode of standard AT keyboards and PS/2 keyboards\n"
+                "        atset3         set3 scancode of standard AT keyboards and PS/2 keyboards\n"
+                "        xt:keystring   XT scancode, but <keycode>... must be the qemu-style key strings\n"
+                "\n"
                 "    Examples:\n\n"
                 "        virsh # send-key <domain> 37 18 21\n"
                 "        virsh # send-key <domain> --holdtime 1000 0x15 18 0xf\n"
-                "        virsh # send-eky <domain> KEY_LEFTCTRL KEY_LEFTALT KEY_F1\n"
+                "        virsh # send-key <domain> KEY_LEFTCTRL KEY_LEFTALT KEY_F1\n"
+                "        virsh # send-key <domain> --codeset xt:keystring alt-sysrq h\n"
                 "\n"
                 "    KEY_XXX strings for the \"linux\" codeset:\n"
 #define keycode(var, value) "    "  #var " = " #value "\n"
@@ -3062,6 +3075,178 @@ static int get_integer_keycode(const char *key_name)
     return val;
 }
 
+
+typedef struct {
+    int keycode;
+    const char *name;
+} KeyDef;
+
+static const KeyDef key_defs[] = {
+    { 0x2a, "shift" },
+    { 0x36, "shift_r" },
+
+    { 0x38, "alt" },
+    { 0xb8, "alt_r" },
+    { 0x64, "altgr" },
+    { 0xe4, "altgr_r" },
+    { 0x1d, "ctrl" },
+    { 0x9d, "ctrl_r" },
+
+    { 0xdd, "menu" },
+
+    { 0x01, "esc" },
+
+    { 0x02, "1" },
+    { 0x03, "2" },
+    { 0x04, "3" },
+    { 0x05, "4" },
+    { 0x06, "5" },
+    { 0x07, "6" },
+    { 0x08, "7" },
+    { 0x09, "8" },
+    { 0x0a, "9" },
+    { 0x0b, "0" },
+    { 0x0c, "minus" },
+    { 0x0d, "equal" },
+    { 0x0e, "backspace" },
+
+    { 0x0f, "tab" },
+    { 0x10, "q" },
+    { 0x11, "w" },
+    { 0x12, "e" },
+    { 0x13, "r" },
+    { 0x14, "t" },
+    { 0x15, "y" },
+    { 0x16, "u" },
+    { 0x17, "i" },
+    { 0x18, "o" },
+    { 0x19, "p" },
+    { 0x1a, "bracket_left" },
+    { 0x1b, "bracket_right" },
+    { 0x1c, "ret" },
+
+    { 0x1e, "a" },
+    { 0x1f, "s" },
+    { 0x20, "d" },
+    { 0x21, "f" },
+    { 0x22, "g" },
+    { 0x23, "h" },
+    { 0x24, "j" },
+    { 0x25, "k" },
+    { 0x26, "l" },
+    { 0x27, "semicolon" },
+    { 0x28, "apostrophe" },
+    { 0x29, "grave_accent" },
+
+    { 0x2b, "backslash" },
+    { 0x2c, "z" },
+    { 0x2d, "x" },
+    { 0x2e, "c" },
+    { 0x2f, "v" },
+    { 0x30, "b" },
+    { 0x31, "n" },
+    { 0x32, "m" },
+    { 0x33, "comma" },
+    { 0x34, "dot" },
+    { 0x35, "slash" },
+
+    { 0x37, "asterisk" },
+
+    { 0x39, "spc" },
+    { 0x3a, "caps_lock" },
+    { 0x3b, "f1" },
+    { 0x3c, "f2" },
+    { 0x3d, "f3" },
+    { 0x3e, "f4" },
+    { 0x3f, "f5" },
+    { 0x40, "f6" },
+    { 0x41, "f7" },
+    { 0x42, "f8" },
+    { 0x43, "f9" },
+    { 0x44, "f10" },
+    { 0x45, "num_lock" },
+    { 0x46, "scroll_lock" },
+
+    { 0xb5, "kp_divide" },
+    { 0x37, "kp_multiply" },
+    { 0x4a, "kp_subtract" },
+    { 0x4e, "kp_add" },
+    { 0x9c, "kp_enter" },
+    { 0x53, "kp_decimal" },
+    { 0x54, "sysrq" },
+
+    { 0x52, "kp_0" },
+    { 0x4f, "kp_1" },
+    { 0x50, "kp_2" },
+    { 0x51, "kp_3" },
+    { 0x4b, "kp_4" },
+    { 0x4c, "kp_5" },
+    { 0x4d, "kp_6" },
+    { 0x47, "kp_7" },
+    { 0x48, "kp_8" },
+    { 0x49, "kp_9" },
+
+    { 0x56, "<" },
+
+    { 0x57, "f11" },
+    { 0x58, "f12" },
+
+    { 0xb7, "print" },
+
+    { 0xc7, "home" },
+    { 0xc9, "pgup" },
+    { 0xd1, "pgdn" },
+    { 0xcf, "end" },
+
+    { 0xcb, "left" },
+    { 0xc8, "up" },
+    { 0xd0, "down" },
+    { 0xcd, "right" },
+
+    { 0xd2, "insert" },
+    { 0xd3, "delete" },
+
+    { 0xf0, "stop" },
+    { 0xf1, "again" },
+    { 0xf2, "props" },
+    { 0xf3, "undo" },
+    { 0xf4, "front" },
+    { 0xf5, "copy" },
+    { 0xf6, "open" },
+    { 0xf7, "paste" },
+    { 0xf8, "find" },
+    { 0xf9, "cut" },
+    { 0xfa, "lf" },
+    { 0xfb, "help" },
+    { 0xfc, "meta_l" },
+    { 0xfd, "meta_r" },
+    { 0xfe, "compose" },
+
+    { 0, NULL },
+};
+
+static int get_xtkeystr_keycode(const char *key_name, unsigned int keyname_len)
+{
+    const KeyDef *p;
+    char *endp;
+    int ret;
+
+    if (keyname_len == 0)
+        return -1;
+
+    for(p = key_defs; p->name != NULL; p++) {
+        if (!strncmp(key_name, p->name, keyname_len))
+            return p->keycode;
+    }
+    if (key_name[0] == '0' && (key_name[1] == 'x' || key_name[1] == 'X')) {
+        ret = strtoul(key_name, &endp, 0);
+        if (endp - key_name == keyname_len && ret >= 0x01 && ret <= 0xff)
+            return ret;
+    }
+    return -1;
+}
+
+
 static bool
 cmdSendKey(vshControl *ctl, const vshCmd *cmd)
 {
@@ -3073,6 +3258,7 @@ cmdSendKey(vshControl *ctl, const vshCmd *cmd)
     int count = 0;
     const vshCmdOpt *opt;
     int keycode;
+    int xt_keystring = 0;
     unsigned int keycodes[MAX_SEND_KEY];
 
     if (!vshConnectionUsability(ctl, ctl->conn))
@@ -3099,6 +3285,9 @@ cmdSendKey(vshControl *ctl, const vshCmd *cmd)
         codeset = LIBVIRT_KEYCODE_ATSET2;
     } else if (STREQ(codeset_option, "atset3")) {
         codeset = LIBVIRT_KEYCODE_ATSET3;
+    } else if (STREQ(codeset_option, "xt:keystring")) {
+        codeset = LIBVIRT_KEYCODE_XT;
+        xt_keystring = 1;
     } else {
         vshError(ctl, _("unknown codeset: '%s'"), codeset_option);
         goto free_domain;
@@ -3106,11 +3295,40 @@ cmdSendKey(vshControl *ctl, const vshCmd *cmd)
 
     for_each_variable_arg(cmd, opt) {
         if (count == MAX_SEND_KEY) {
-            vshError(ctl, _("too many keycode"));
+            vshError(ctl, _("too many keycodes"));
             goto free_domain;
         }
 
-        if ((keycode = get_linux_keycode(opt->data)) > 0)
+        if (codeset == LIBVIRT_KEYCODE_XT && xt_keystring == 1) {
+            const char *sep, *key_string = opt->data;
+            unsigned int keyname_len;
+
+            for (;;) {
+                if (count == MAX_SEND_KEY) {
+                    vshError(ctl, _("too many keycodes"));
+                    goto free_domain;
+                }
+
+                sep = strchr(key_string, '-');
+                keyname_len = sep ? sep - key_string : strlen(key_string);
+
+                keycode = get_xtkeystr_keycode(key_string, keyname_len);
+                if (keycode < 0) {
+                    vshError(ctl, _("invalid keycode: '%s'"), opt->data);
+                    goto free_domain;
+                }
+
+                keycodes[count] = keycode;
+                count++;
+                if (!sep)
+                    break;
+                key_string += keyname_len + 1;
+            }
+            continue;
+        }
+
+        if (codeset == LIBVIRT_KEYCODE_LINUX &&
+            (keycode = get_linux_keycode(opt->data)) > 0)
             goto get_keycode;
 
         if ((keycode = get_integer_keycode(opt->data)) > 0)
-- 
1.7.4.4


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