search for: ptmx

Hello, looking at the pty handling in OpenSSH 2.3.0p1 (hasn't changed much in CVS, as far as I can tell after a quick look at it), I can see that if the system provides both /dev/ptmx and openpty() types of pty interface, the latter is preferred. This is the case on Linux with glibc 2.1.3 and most likely later versions too. However, openpty() is documented to be dangerous - quote from the glibc manual: *Warning:* Using the `openpty' function with NAME not set to...

...4 Feb 15 17:12 5 -> socket:[383586458] lrwx------ 1 root root 64 Feb 15 17:12 4 -> socket:[383586457] lrwx------ 1 root root 64 Feb 15 17:12 3 -> socket:[383585929] lrwx------ 1 root root 64 Feb 15 17:12 2 -> /dev/null lrwx------ 1 root root 64 Feb 15 17:12 14 -> /dev/ptmx lrwx------ 1 root root 64 Feb 15 17:12 13 -> /dev/ptmx lrwx------ 1 root root 64 Feb 15 17:12 11 -> /dev/ptmx l-wx------ 1 root root 64 Feb 15 17:12 10 -> pipe:[383586491] lrwx------ 1 root root 64 Feb 15 17:12 1 -> /dev/null lrwx------ 1 root root 64 Feb 15 17:12 0...

...> 0. System information: > > $ uname -X > System = SCO_SV > Node = scosysv > Release = 3.2v5.0.4 > KernelID = 97/05/07 > Machine = Pentium > BusType = ISA > Serial = 4FC006928 > Users = 16-user > OEM# = 0 > Origin# = 1 > NumCPU = 1 > > > 1. /dev/ptmx > > config.h > My SCO does support the device /dev/ptmx after a fashion, but does not > enable them as true tty's. This causes problems with sshd. The man page > says: > >>> > Limitations > =========== > > Although /dev/ptmx is referred to as a p...

environment 1)compiler: cc -v Reading specs from /usr/lib/gcc-lib/i386-slackware-linux/2.95.2/specs gcc version 2.95.2 19991024 (release) 2)openssh: CVS from 31 jan 2001 3)libc: GNU libc 2.2.1 output form make pty.o is: #make pty.o gcc -g -O2 -Wall -I/usr/local/ssl/include -I. -I. -DETCDIR=\"/etc\" -D_PATH_SSH_PROGRAM=\"/usr/bin/ssh\"

...the past and lxc has a script (lxc-fedora) to setup a basic Fedora container. Is there something similar or docs with virtmgr ? We started out making a copy of the root fs and using that copy as the root for the container. I made a couple of tweaks to the container rootfs: 1. ensured that /dev/ptmx is a symlink to pts/ptmx 2. Added 'newinstance' option to the devpts mount in fstab The container xml file is attached. If devpts entry in container's fstab has the 'newinstance' option, I get a brief "domain test01 started" message on the stdout. When I run 'v...

Hi Angel and many thanks for your answer The application still sending & receiving data .- strace over the application: write(1, "\33[1;1H\237#SF \234", 44) = 44 <--it was sent from the application to the terminal, but ssh didn't received this string read(0, "\10", 1024) = 1 <- the client remained sending data and it

...#39;'/dev/sda1 ro'' root = ''/dev/sda2 ro'' And the same problem In the /dev vm I have: (initramfs) ls /dev char console core cpu_dma_latency fd full hvc0 hvc1 hvc2 hvc3 hvc4 hvc5 hvc6 hvc7 input kmsg mapper mem network_latency network_throughput null port psaux ptmx pts random snapshot ttyx urandom vcs vcs1 vcsa vcsa1 vga_arbiter xen zero I have tried with vcs vcs1 vcsa vcsa1 but have the error: mount: mounting /dev/vcs1 on /root failed: No such file or directory Any idea? I''m making wrong something? A lot of thanks! ______________________________...

...file I have the following set: user = "root" group ="root" dynamic ownership = 0 clear_emulator_capabilities = 0 cgroup_device_acl = [ "/dev/null", "/dev/full", "/dev/zero", "/dev/random", "/dev/urandom", "/dev/ptmx", "/dev/kvm", "/dev/kqemu", "/dev/rtc", "/dev/hpet", "/dev/net/tun", ] I am running Ubuntu 12, which does not use SELinux. On Fri, Aug 9, 2013 at 8:01 AM, Daniel P. Berrange <berrange@redhat.com>wrote: > On Thu, Aug 08, 201...

.../dev/null > sshd 3100 root 3u IPv4 3642329 TCP FOO.DOM:ssh->68-26-27-159.pools.spcsdns.net:54719 (ESTABLISHED) > sshd 3100 root 4u unix 0xffff8100189aa8c0 3642382 socket > sshd 3100 root 5u CHR 5,2 778 /dev/ptmx > sshd 3100 root 6u unix 0xffff810034004ec0 3642390 socket =============== > lsof -p 3102 > COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME > sshd 3102 kiblerj cwd DIR 9,1 4096 2 / > sshd 3102 kiblerj rtd D...

..._inline__ void srandom(unsigned int __s) __extern int unlockpt(int); __extern char *ptsname(int); -__extern int posix_openpt(int); + +static __inline__ int posix_openpt(int __mode) +{ + __extern int open(const char *, int, ...); + + __mode &= ~(O_CREAT | O_TMPFILE); + return open("/dev/ptmx", __mode); +} static __inline__ int grantpt(int __fd) { diff --git a/usr/klibc/Kbuild b/usr/klibc/Kbuild index a0e440d..eba6add 100644 --- a/usr/klibc/Kbuild +++ b/usr/klibc/Kbuild @@ -52,7 +52,7 @@ klib-y += vsnprintf.o snprintf.o vsprintf.o sprintf.o \ getenv.o setenv.o putenv.o __pu...

I need the version with this bugfix: http://bugzilla.mindrot.org/show_bug.cgi?id=182 . ("ssh should still force SIGCHLD to be SIG_DFL when calling ssh-rand-helper") It is apparently in the next release. Anyone have an estimate of when it will be released? thx, -das

...rd $ libvirtd --version libvirtd (libvirt) 0.8.6 /etc/libvirt/qemu.conf cgroup_controllers = [ "cpu", "devices" ] cgroup_device_acl = [ "/dev/null", "/dev/full", "/dev/zero", "/dev/random", "/dev/urandom", "/dev/ptmx", "/dev/kvm", "/dev/kqemu", "/dev/rtc", "/dev/hpet", "/dev/net/tun", ] /etc/cgconfig.conf mount { cpu = /dev/cgroup/cpu; cpuacct = /dev/cgroup/cpuacct; devices = /dev/cgroup/devices; # memory = /dev/cgroup/memory; blkio = /dev/cgroup...

...If you are using the audit subsystem, the link between a tty and successive processes may be lost in the audit records. But I do extensive auditing, and ptys seem to be pretty much useless in audit trails; it's the process tree that is most useful. - Tru64 5.0x has the /dev/ptmx device, so the HAVE_DEV_PTMX logic can be used to access grantpty() in sshpty.c. But OS versions prior to 5.0x do not have /dev/ptmx, although they *DO HAVE* grantpty. So appropriate changes and testing will have to be done for earlier versions to see that grantpty() and all t...

...er = "root" > group ="root" > dynamic ownership = 0 > clear_emulator_capabilities = 0 > cgroup_device_acl = [ > "/dev/null", "/dev/full", "/dev/zero", > "/dev/random", "/dev/urandom", > "/dev/ptmx", "/dev/kvm", "/dev/kqemu", > "/dev/rtc", "/dev/hpet", > "/dev/net/tun", > ] You did restart libvirtd after making those setting changes, right ? The user, group & clear_emulator_capabilities settings are the 3 that matter...

...file I have the following set: user = "root" group ="root" dynamic ownership = 0 clear_emulator_capabilities = 0 cgroup_device_acl = [ "/dev/null", "/dev/full", "/dev/zero", "/dev/random", "/dev/urandom", "/dev/ptmx", "/dev/kvm", "/dev/kqemu", "/dev/rtc", "/dev/hpet", "/dev/net/tun", ] I am running Ubuntu 12, which does not use SELinux. On Sat, Aug 10, 2013 at 8:30 PM, Joshua McKee <josjunk@gmail.com> wrote: > Thanks! Unfortunately, I...

...706: debug : virCgroupNew:542 : New group / 03:07:23.707: debug : lxcControllerRun:563 : Setting up private /dev/pts 03:07:23.711: debug : lxcControllerRun:589 : Mouting 'devpts' on /var/lxc/f14/dev/pts 03:07:23.711: debug : lxcControllerRun:604 : Opening tty on private /var/lxc/f14/dev/pts/ptmx 03:07:23.714: debug : lxcContainerAvailable:897 : clone call returned Invalid argument, container support is not enabled 03:07:23.714: debug : lxcContainerStart:848 : Enable network namespaces 03:07:23.718: debug : lxcContainerStart:854 : clone() completed, new container PID is -1 03:07:23.718: err...

...17 21:18 full drwxr-xr-x. 2 root root 0 Apr 17 21:18 hugepages prw-------. 1 root root 0 Apr 17 21:18 initctl srw-rw-rw-. 1 root root 0 Apr 17 21:18 log drwxrwxrwt. 2 root root 40 Apr 17 21:18 mqueue crw-rw-rw-. 1 root root 1, 3 Apr 17 21:18 null crw-rw-rw-. 1 root root 5, 2 Apr 18 10:31 ptmx drwxr-xr-x. 2 root root 0 Apr 17 21:18 pts crw-r--r--. 1 root root 1, 8 Apr 17 21:19 random drwxrwxrwt. 2 root root 40 Apr 17 21:18 shm lrwxrwxrwx. 1 root root 15 Apr 17 21:18 stderr -> /proc/self/fd/2 lrwxrwxrwx. 1 root root 15 Apr 17 21:18 stdin -> /proc/self/fd/0 lrwxrwxrwx. 1 roo...

...nal 4) child forks again, calls setsid and attempts to make pty controlling terminal. This fails because the pty is already controlling terminal for another session. Looking at a truss -f of sshd for access to that pty shows: # grep /dev/pt /tmp/sshd.trace |grep 21690 21690: open64("/dev/ptmx", O_RDWR|O_NOCTTY) = 6 21690: access("/dev/pts/2", 0) = 0 21690: open64("/dev/pts/2", O_RDWR|O_NOCTTY) = 7 21690: stat64("/dev/pts/2", 0xEFFFF020) = 0 21690: chown("/dev/pts/2", 500, 7)...

...OPEN_SOURCE -D_XOPEN_SOURCE_EXTENDED=1" + IPADDR_IN_DISPLAY=yes + AC_DEFINE(USE_PIPES) + AC_DEFINE(TRUSTED_HPUX) + AC_DEFINE(LOGIN_NEEDS_UTMPX) + AC_DEFINE(DISABLE_SHADOW) + AC_DEFINE(DISABLE_UTMP) + AC_DEFINE(SPT_TYPE,SPT_PSTAT) + LIBS="$LIBS -lxnet -lsec -lsecpw" + disable_ptmx_check=yes + ;; *-*-hpux10*) if test -z "$GCC"; then CFLAGS="$CFLAGS -Ae" *************** *** 1769,1780 **** fi if test -z "$no_dev_ptmx" ; then ! AC_CHECK_FILE("/dev/ptmx", ! [ ! AC_DEFINE_UNQUOTED(HAVE_DEV_PTMX) ! have_dev_ptmx=1 !...

...1 root sys 11, 7 Mar 30 19:30 clone@0:hme crw------- 1 root sys 11, 40 Mar 30 19:30 clone@0:le crw-rw-rw- 1 root sys 11, 107 Mar 30 19:35 clone@0:llc1 crw------- 1 root sys 11, 4 Mar 30 19:35 clone@0:logindmux crw-rw-rw- 1 root sys 11, 23 Mar 30 19:35 clone@0:ptmx crw--w---- 1 root tty 0, 0 Apr 8 12:49 cn@0:console crw--w---- 1 root tty 0, 0 Apr 7 16:32 cn@0:syscon crw--w---- 1 root tty 0, 0 Mar 30 19:30 cn@0:systty ---snip--- root@ti1us003# ls -l /tmp/foo/ total 0 crw-rw-rw- 1 root sys 0, 0 Mar 30 19:30 arp@0:arp crw...