Date: Wed, 10 Sep 2014 11:13:14 +0000 (UTC) From: Aleksandr Rybalko <ray@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r271381 - head/sys/dev/vt Message-ID: <201409101113.s8ABDEKi090971@svn.freebsd.org>
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Author: ray Date: Wed Sep 10 11:13:13 2014 New Revision: 271381 URL: http://svnweb.freebsd.org/changeset/base/271381 Log: o Add sysctls to enable/disable potentially dengerous key combinations, like reboot/halt/debug. o Add support for most key combinations supported by syscons(4). Reviewed by: dumbbell, emaste (prev revision of D747) MFC after: 5 days Sponsored by: The FreeBSD Foundation Modified: head/sys/dev/vt/vt_core.c Modified: head/sys/dev/vt/vt_core.c ============================================================================== --- head/sys/dev/vt/vt_core.c Wed Sep 10 11:06:02 2014 (r271380) +++ head/sys/dev/vt/vt_core.c Wed Sep 10 11:13:13 2014 (r271381) @@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$"); #include <sys/lock.h> #include <sys/malloc.h> #include <sys/mutex.h> +#include <sys/power.h> #include <sys/priv.h> #include <sys/proc.h> #include <sys/reboot.h> @@ -123,6 +124,18 @@ VT_SYSCTL_INT(debug, 0, "vt(9) debug lev VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode"); VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend"); +/* Allow to disable some keyboard combinations. */ +VT_SYSCTL_INT(kbd_halt, 1, "Enable halt keyboard combination. " + "See kbdmap(5) to configure."); +VT_SYSCTL_INT(kbd_poweroff, 1, "Enable Power Off keyboard combination. " + "See kbdmap(5) to configure."); +VT_SYSCTL_INT(kbd_reboot, 1, "Enable reboot keyboard combination. " + "See kbdmap(5) to configure (typically Ctrl-Alt-Delete)."); +VT_SYSCTL_INT(kbd_debug, 1, "Enable key combination to enter debugger. " + "See kbdmap(5) to configure (typically Ctrl-Alt-Esc)."); +VT_SYSCTL_INT(kbd_panic, 0, "Enable request to panic. " + "See kbdmap(5) to configure."); + static struct vt_device vt_consdev; static unsigned int vt_unit = 0; static MALLOC_DEFINE(M_VT, "vt", "vt device"); @@ -484,18 +497,47 @@ vt_machine_kbdevent(int c) { switch (c) { - case SPCLKEY | DBG: - kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); + case SPCLKEY | DBG: /* kbdmap(5) keyword `debug`. */ + if (vt_kbd_debug) + kdb_enter(KDB_WHY_BREAK, "manual escape to debugger"); + return (1); + case SPCLKEY | HALT: /* kbdmap(5) keyword `halt`. */ + if (vt_kbd_halt) + shutdown_nice(RB_HALT); + return (1); + case SPCLKEY | PASTE: /* kbdmap(5) keyword `paste`. */ +#ifndef SC_NO_CUTPASTE + /* Insert text from cut-paste buffer. */ + /* TODO */ +#endif + break; + case SPCLKEY | PDWN: /* kbdmap(5) keyword `pdwn`. */ + if (vt_kbd_poweroff) + shutdown_nice(RB_HALT|RB_POWEROFF); + return (1); + case SPCLKEY | PNC: /* kbdmap(5) keyword `panic`. */ + /* + * Request to immediate panic if sysctl + * kern.vt.enable_panic_key allow it. + */ + if (vt_kbd_panic) + panic("Forced by the panic key"); + return (1); + case SPCLKEY | RBT: /* kbdmap(5) keyword `boot`. */ + if (vt_kbd_reboot) + shutdown_nice(RB_AUTOBOOT); return (1); - case SPCLKEY | RBT: - /* XXX: Make this configurable! */ - shutdown_nice(0); + case SPCLKEY | SPSC: /* kbdmap(5) keyword `spsc`. */ + /* Force activatation/deactivation of the screen saver. */ + /* TODO */ return (1); - case SPCLKEY | HALT: - shutdown_nice(RB_HALT); + case SPCLKEY | STBY: /* XXX Not present in kbdcontrol parser. */ + /* Put machine into Stend-By mode. */ + power_pm_suspend(POWER_SLEEP_STATE_STANDBY); return (1); - case SPCLKEY | PDWN: - shutdown_nice(RB_HALT|RB_POWEROFF); + case SPCLKEY | SUSP: /* kbdmap(5) keyword `susp`. */ + /* Suspend machine. */ + power_pm_suspend(POWER_SLEEP_STATE_SUSPEND); return (1); }; @@ -611,6 +653,20 @@ vt_processkey(keyboard_t *kbd, struct vt } switch (c) { + case NEXT: + /* Switch to next VT. */ + c = (vw->vw_number + 1) % VT_MAXWINDOWS; + vw = vd->vd_windows[c]; + if (vw != NULL) + vt_proc_window_switch(vw); + return (0); + case PREV: + /* Switch to previous VT. */ + c = (vw->vw_number - 1) % VT_MAXWINDOWS; + vw = vd->vd_windows[c]; + if (vw != NULL) + vt_proc_window_switch(vw); + return (0); case SLK: { kbdd_ioctl(kbd, KDGKBSTATE, (caddr_t)&state);
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