ch(4) FreeBSD 11.1 jails

Dan Langille dan at langille.org
Sun Dec 17 16:49:48 UTC 2017


Scott,


On the host: 

[dan at r710-01:~] $ sysctl kern.securelevel
kern.securelevel: -1


On the jail:

[dan at bacula-sd-01:~] $ sysctl kern.securelevel
kern.securelevel: -1


If it's something else, who should I consult?

-- 
Dan Langille - BSDCan / PGCon
dan at langille.org


> On Dec 17, 2017, at 11:39 AM, Scott Long <scottl at samsco.org> wrote:
> 
> Hi Dan,
> 
> I agree with you, truss definitely shows that it’s failing with the open(“pass7”)
> call.  Nothing in the src/sys/cam/scsi/scsi_pass.c code that has changed
> regarding ‘open’ semantics since FreeBSD 9 in 2012.  There is a check in
> the code against the securelevel of the system.  That code was added a 
> LONG time ago, but maybe something has changed with securelevel.  I
> guess it’s worth a look on your system to look at the kern.securelevel
> sysctl both inside and outside of the jail.  If it’s not that then something
> outside of CAM, either in devfs or in the syscall layer, has changed.
> 
> Scott
> 
> 
>> On Dec 17, 2017, at 9:32 AM, Dan Langille <dan at langille.org> wrote:
>> 
>> 
>> 
>> 
>>> On Dec 17, 2017, at 11:27 AM, Dan Langille <dan at langille.org> wrote:
>>> 
>>>>> On Dec 16, 2017, at 3:05 PM, Dan Langille <dan at langille.org> wrote:
>>>>> 
>>>>> I'm trying to access a tape library from within a FreeBSD 11 jail.
>>>>> 
>>>>> I've added this to the host system:
>>>>> 
>>>>> [devfsrules_jail_unhide_tapes=5]
>>>>> add path sa0    unhide
>>>>> add path pass0  unhide
>>>>> add path pass7  unhide mode 0600
>>>>> add path ch0    unhide
>>>>> add path nsa0   unhide
>>>>> 
>>>>> add path sa1    unhide
>>>>> add path pass8  unhide
>>>>> add path pass9  unhide mode 0600
>>>>> add path ch1    unhide
>>>>> add path nsa1   unhide
>>>>> 
>>>>> 
>>>>> [devfsrules_jail_bacula=6]
>>>>> add include $devfsrules_hide_all
>>>>> add include $devfsrules_unhide_basic
>>>>> add include $devfsrules_unhide_login
>>>>> add path zfs unhide
>>>>> add include $devfsrules_jail_unhide_tapes
>>>>> 
>>>>> 
>>>>> 
>>>>> The jail can see the devices, and query the tape drive, but not the changer:
>>>>> 
>>>>> $ sudo mtx -f /dev/pass7 status
>>>>> cannot open SCSI device '/dev/pass7' - Operation not permitted
>>>>> 
>>>>> The same command in the jail host succeeds.
>>>>> 
>>>>> Is there something more special I'm missing about FreeBSD 11.1? This worked for me under 10.3.
>>>>> 
>>>>> Thank you.
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Dan Langille - BSDCan / PGCon
>>>>> dan at langille.org
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> freebsd-scsi at freebsd.org mailing list
>>>>> https://lists.freebsd.org/mailman/listinfo/freebsd-scsi
>>>>> To unsubscribe, send any mail to "freebsd-scsi-unsubscribe at freebsd.org"
>>>> 
>>> 
>>>> On Dec 16, 2017, at 5:53 PM, Scott Long <scottl at samsco.org> wrote:
>>>> 
>>>> Hi Dan,
>>>> 
>>>> Try unhiding and giving permissions to /dev/xpt0.  Not sure if something changed there between 10.x and 11.x, but I suspect that it would be necessary regardless.  A truss/ktrace output will be necessary if that doesn’t work.
>>>> 
>>>> Scott
>>>> 
>>>> Sent from my iPhone
>>>> 
>>> 
>>> Background: the host devices from the tape library:
>>> 
>>> <IBM ULT3580-HH4 C7Q1>             at scbus1 target 4 lun 0 (pass1,sa0)
>>> <IBM 3573-TL B.60>                 at scbus1 target 4 lun 1 (pass7,ch0)
>>> <IBM ULT3580-HH4 C7Q1>             at scbus1 target 5 lun 0 (pass8,sa1)
>>> <IBM 3573-TL B.60>                 at scbus1 target 5 lun 1 (pass9,ch1)
>>> 
>>> 
>>> The devices the jail can see:
>>> 
>>> [dan at bacula-sd-02:~] $ ls -l /dev
>>> total 1
>>> crw-------  1 root  operator  0x6b Dec 16 21:52 ch0
>>> crw-------  1 root  operator  0x6c Dec 16 21:52 ch1
>>> dr-xr-xr-x  2 root  wheel      512 Dec 16 21:52 fd
>>> lrwxr-xr-x  1 root  wheel       14 Dec 16 22:02 log -> ../var/run/log
>>> crw-rw----  1 root  operator  0x65 Dec 16 21:52 nsa0
>>> crw-rw----  1 root  operator  0x69 Dec 16 21:52 nsa1
>>> crw-rw-rw-  1 root  wheel     0x1b Dec 17 16:16 null
>>> crw-------  1 root  operator  0x6d Dec 16 21:52 pass0
>>> crw-------  1 root  operator  0x74 Dec 16 21:52 pass7
>>> crw-------  1 root  operator  0x75 Dec 16 21:52 pass8
>>> crw-------  1 root  operator  0x76 Dec 16 21:52 pass9
>>> dr-xr-xr-x  2 root  wheel      512 Dec 17 16:16 pts
>>> crw-r--r--  1 root  wheel      0x7 Dec 16 21:52 random
>>> crw-rw----  1 root  operator  0x64 Dec 16 21:52 sa0
>>> crw-rw----  1 root  operator  0x68 Dec 16 21:52 sa1
>>> lrwxr-xr-x  1 root  wheel        4 Dec 16 22:02 stderr -> fd/2
>>> lrwxr-xr-x  1 root  wheel        4 Dec 16 22:02 stdin -> fd/0
>>> lrwxr-xr-x  1 root  wheel        4 Dec 16 22:02 stdout -> fd/1
>>> lrwxr-xr-x  1 root  wheel        6 Dec 16 22:02 urandom -> random
>>> crw-rw-rw-  1 root  wheel     0x1c Dec 16 21:52 zero
>>> crw-rw-rw-  1 root  operator  0x48 Dec 16 21:52 zfs
>>> [dan at bacula-sd-02:~] $ 
>>> 
>>> This command on the host:
>>> 
>>> [root at r710-01:~] # mtx -f /dev/pass7 status | head
>>> Storage Changer /dev/pass7:2 Drives, 47 Slots ( 0 Import/Export )
>>> Data Transfer Element 0:Full (Storage Element 1 Loaded):VolumeTag = 000001L4                       
>>> Data Transfer Element 1:Empty
>>>    Storage Element 1:Empty
>>>    Storage Element 2:Empty
>>>    Storage Element 3:Empty
>>>    Storage Element 4:Empty
>>>    Storage Element 5:Empty
>>>    Storage Element 6:Empty
>>>    Storage Element 7:Empty
>>> 
>>> 
>>> Same command in the jail:
>>> 
>>> [root at bacula-sd-02 ~]# mtx -f /dev/pass7 status
>>> cannot open SCSI device '/dev/pass7' - Operation not permitted
>>> 
>>> Same command with truss:
>>> 
>>> [root at bacula-sd-02 ~]# truss mtx -f /dev/pass7 status 
>>> mmap(0x0,32768,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366197760 (0x800629000)
>>> issetugid()					 = 0 (0x0)
>>> lstat("/etc",{ mode=drwxr-xr-x ,inode=19,size=117,blksize=7680 }) = 0 (0x0)
>>> lstat("/etc/libmap.conf",{ mode=-rw-r--r-- ,inode=13724,size=109,blksize=4096 }) = 0 (0x0)
>>> openat(AT_FDCWD,"/etc/libmap.conf",O_RDONLY|O_CLOEXEC,00) = 3 (0x3)
>>> fstat(3,{ mode=-rw-r--r-- ,inode=13724,size=109,blksize=4096 }) = 0 (0x0)
>>> mmap(0x0,109,PROT_READ,MAP_PRIVATE,3,0x0)	 = 34366230528 (0x800631000)
>>> close(3)					 = 0 (0x0)
>>> lstat("/usr",{ mode=drwxr-xr-x ,inode=23,size=15,blksize=4096 }) = 0 (0x0)
>>> lstat("/usr/local",{ mode=drwxr-xr-x ,inode=214,size=14,blksize=4096 }) = 0 (0x0)
>>> lstat("/usr/local/etc",{ mode=drwxr-xr-x ,inode=32826,size=29,blksize=4096 }) = 0 (0x0)
>>> lstat("/usr/local/etc/libmap.d",0x7fffffffc548)	 ERR#2 'No such file or directory'
>>> munmap(0x800631000,109)				 = 0 (0x0)
>>> openat(AT_FDCWD,"/var/run/ld-elf.so.hints",O_RDONLY|O_CLOEXEC,00) = 3 (0x3)
>>> read(3,"Ehnt\^A\0\0\0\M^@\0\0\0f\0\0\0\0"...,128) = 128 (0x80)
>>> fstat(3,{ mode=-r--r--r-- ,inode=66965,size=230,blksize=4096 }) = 0 (0x0)
>>> lseek(3,0x80,SEEK_SET)				 = 128 (0x80)
>>> read(3,"/lib:/usr/lib:/usr/lib/compat:/u"...,102) = 102 (0x66)
>>> close(3)					 = 0 (0x0)
>>> access("/lib/libcam.so.7",F_OK)			 = 0 (0x0)
>>> openat(AT_FDCWD,"/lib/libcam.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3)
>>> fstat(3,{ mode=-r--r--r-- ,inode=141,size=201240,blksize=131072 }) = 0 (0x0)
>>> mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366230528 (0x800631000)
>>> mmap(0x0,2297856,PROT_NONE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34368299008 (0x80082a000)
>>> mmap(0x80082a000,176128,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREFAULT_READ,3,0x0) = 34368299008 (0x80082a000)
>>> mmap(0x800a54000,28672,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0x2a000) = 34370568192 (0x800a54000)
>>> munmap(0x800631000,4096)			 = 0 (0x0)
>>> close(3)					 = 0 (0x0)
>>> access("/lib/libc.so.7",F_OK)			 = 0 (0x0)
>>> openat(AT_FDCWD,"/lib/libc.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3)
>>> fstat(3,{ mode=-r--r--r-- ,inode=168,size=1761320,blksize=131072 }) = 0 (0x0)
>>> mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366230528 (0x800631000)
>>> mmap(0x0,3899392,PROT_NONE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34370596864 (0x800a5b000)
>>> mmap(0x800a5b000,1646592,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREFAULT_READ,3,0x0) = 34370596864 (0x800a5b000)
>>> mmap(0x800ded000,49152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0x192000) = 34374340608 (0x800ded000)
>>> mmap(0x800df9000,106496,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_ANON,-1,0x0) = 34374389760 (0x800df9000)
>>> munmap(0x800631000,4096)			 = 0 (0x0)
>>> close(3)					 = 0 (0x0)
>>> access("/lib/libsbuf.so.6",F_OK)		 = 0 (0x0)
>>> openat(AT_FDCWD,"/lib/libsbuf.so.6",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3)
>>> fstat(3,{ mode=-r--r--r-- ,inode=137,size=11312,blksize=11776 }) = 0 (0x0)
>>> mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366230528 (0x800631000)
>>> mmap(0x0,2109440,PROT_NONE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34374496256 (0x800e13000)
>>> mmap(0x800e13000,12288,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREFAULT_READ,3,0x0) = 34374496256 (0x800e13000)
>>> mmap(0x801015000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0x2000) = 34376601600 (0x801015000)
>>> munmap(0x800631000,4096)			 = 0 (0x0)
>>> close(3)					 = 0 (0x0)
>>> mmap(0x0,40960,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366230528 (0x800631000)
>>> munmap(0x800634000,28672)			 = 0 (0x0)
>>> mmap(0x0,102400,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366242816 (0x800634000)
>>> sysarch(AMD64_SET_FSBASE,0x7fffffffdf08)	 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> readlink("/etc/malloc.conf",0x7fffffffd600,1024) ERR#2 'No such file or directory'
>>> issetugid()					 = 0 (0x0)
>>> __sysctl(0x7fffffffd4a0,0x2,0x7fffffffd4f0,0x7fffffffd4e8,0x800bbcc93,0xd) = 0 (0x0)
>>> __sysctl(0x7fffffffd4f0,0x2,0x7fffffffd5b4,0x7fffffffd5a8,0x0,0x0) = 0 (0x0)
>>> mmap(0x0,2097152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34376605696 (0x801016000)
>>> munmap(0x801016000,2097152)			 = 0 (0x0)
>>> mmap(0x0,4190208,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34376605696 (0x801016000)
>>> munmap(0x801016000,2007040)			 = 0 (0x0)
>>> munmap(0x801400000,86016)			 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> mmap(0x0,2097152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34380709888 (0x801400000)
>>> openat(AT_FDCWD,"/dev/pass7",O_RDWR|O_EXCL,00)	 ERR#1 'Operation not permitted'
>>> stat("/usr/share/nls/C/libc.cat",0x7fffffffdea8) ERR#2 'No such file or directory'
>>> stat("/usr/share/nls/libc/C",0x7fffffffdea8)	 ERR#2 'No such file or directory'
>>> stat("/usr/local/share/nls/C/libc.cat",0x7fffffffdea8) ERR#2 'No such file or directory'
>>> stat("/usr/local/share/nls/libc/C",0x7fffffffdea8) ERR#2 'No such file or directory'
>>> cannot open SCSI device '/dev/pass7' - Operation not permitted
>>> write(2,"cannot open SCSI device '/dev/pa"...,63) = 63 (0x3f)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>>> exit(0x1)					
>>> process exit, rval = 1
>>> [root at bacula-sd-02 ~]# 
>>> 
>>> 
>> I forgot to do xpt0... here it is:
>> 
>> ALSO: Diff between the two is here: https://gist.github.com/dlangille/b80ee804b8080e1cbf5b5ab67f0bdabe/revisions
>> 
>> From the jail:
>> 
>> [dan at bacula-sd-02:~] $ ls -l /dev/xpt0 
>> crw-------  1 root  operator  0x4c Dec 16 21:52 /dev/xpt0
>> [dan at bacula-sd-02:~] $ 
>> 
>> 
>> [dan at bacula-sd-02:~] $ truss mtx -f /dev/pass7 status
>> mmap(0x0,32768,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366197760 (0x800629000)
>> issetugid()					 = 0 (0x0)
>> lstat("/etc",{ mode=drwxr-xr-x ,inode=19,size=117,blksize=7680 }) = 0 (0x0)
>> lstat("/etc/libmap.conf",{ mode=-rw-r--r-- ,inode=13724,size=109,blksize=4096 }) = 0 (0x0)
>> openat(AT_FDCWD,"/etc/libmap.conf",O_RDONLY|O_CLOEXEC,00) = 3 (0x3)
>> fstat(3,{ mode=-rw-r--r-- ,inode=13724,size=109,blksize=4096 }) = 0 (0x0)
>> mmap(0x0,109,PROT_READ,MAP_PRIVATE,3,0x0)	 = 34366230528 (0x800631000)
>> close(3)					 = 0 (0x0)
>> lstat("/usr",{ mode=drwxr-xr-x ,inode=23,size=15,blksize=4096 }) = 0 (0x0)
>> lstat("/usr/local",{ mode=drwxr-xr-x ,inode=214,size=14,blksize=4096 }) = 0 (0x0)
>> lstat("/usr/local/etc",{ mode=drwxr-xr-x ,inode=32826,size=29,blksize=4096 }) = 0 (0x0)
>> lstat("/usr/local/etc/libmap.d",0x7fffffffc608)	 ERR#2 'No such file or directory'
>> munmap(0x800631000,109)				 = 0 (0x0)
>> openat(AT_FDCWD,"/var/run/ld-elf.so.hints",O_RDONLY|O_CLOEXEC,00) = 3 (0x3)
>> read(3,"Ehnt\^A\0\0\0\M^@\0\0\0f\0\0\0\0"...,128) = 128 (0x80)
>> fstat(3,{ mode=-r--r--r-- ,inode=72757,size=230,blksize=4096 }) = 0 (0x0)
>> lseek(3,0x80,SEEK_SET)				 = 128 (0x80)
>> read(3,"/lib:/usr/lib:/usr/lib/compat:/u"...,102) = 102 (0x66)
>> close(3)					 = 0 (0x0)
>> access("/lib/libcam.so.7",F_OK)			 = 0 (0x0)
>> openat(AT_FDCWD,"/lib/libcam.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3)
>> fstat(3,{ mode=-r--r--r-- ,inode=141,size=201240,blksize=131072 }) = 0 (0x0)
>> mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366230528 (0x800631000)
>> mmap(0x0,2297856,PROT_NONE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34368299008 (0x80082a000)
>> mmap(0x80082a000,176128,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREFAULT_READ,3,0x0) = 34368299008 (0x80082a000)
>> mmap(0x800a54000,28672,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0x2a000) = 34370568192 (0x800a54000)
>> munmap(0x800631000,4096)			 = 0 (0x0)
>> close(3)					 = 0 (0x0)
>> access("/lib/libc.so.7",F_OK)			 = 0 (0x0)
>> openat(AT_FDCWD,"/lib/libc.so.7",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3)
>> fstat(3,{ mode=-r--r--r-- ,inode=168,size=1761320,blksize=131072 }) = 0 (0x0)
>> mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366230528 (0x800631000)
>> mmap(0x0,3899392,PROT_NONE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34370596864 (0x800a5b000)
>> mmap(0x800a5b000,1646592,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREFAULT_READ,3,0x0) = 34370596864 (0x800a5b000)
>> mmap(0x800ded000,49152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0x192000) = 34374340608 (0x800ded000)
>> mmap(0x800df9000,106496,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_ANON,-1,0x0) = 34374389760 (0x800df9000)
>> munmap(0x800631000,4096)			 = 0 (0x0)
>> close(3)					 = 0 (0x0)
>> access("/lib/libsbuf.so.6",F_OK)		 = 0 (0x0)
>> openat(AT_FDCWD,"/lib/libsbuf.so.6",O_RDONLY|O_CLOEXEC|O_VERIFY,00) = 3 (0x3)
>> fstat(3,{ mode=-r--r--r-- ,inode=137,size=11312,blksize=11776 }) = 0 (0x0)
>> mmap(0x0,4096,PROT_READ,MAP_PRIVATE|MAP_PREFAULT_READ,3,0x0) = 34366230528 (0x800631000)
>> mmap(0x0,2109440,PROT_NONE,MAP_PRIVATE|MAP_ANON|MAP_NOCORE,-1,0x0) = 34374496256 (0x800e13000)
>> mmap(0x800e13000,12288,PROT_READ|PROT_EXEC,MAP_PRIVATE|MAP_FIXED|MAP_NOCORE|MAP_PREFAULT_READ,3,0x0) = 34374496256 (0x800e13000)
>> mmap(0x801015000,4096,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_FIXED|MAP_PREFAULT_READ,3,0x2000) = 34376601600 (0x801015000)
>> munmap(0x800631000,4096)			 = 0 (0x0)
>> close(3)					 = 0 (0x0)
>> mmap(0x0,40960,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366230528 (0x800631000)
>> munmap(0x800634000,28672)			 = 0 (0x0)
>> mmap(0x0,102400,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34366242816 (0x800634000)
>> sysarch(AMD64_SET_FSBASE,0x7fffffffdfc8)	 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> readlink("/etc/malloc.conf",0x7fffffffd6c0,1024) ERR#2 'No such file or directory'
>> issetugid()					 = 0 (0x0)
>> __sysctl(0x7fffffffd560,0x2,0x7fffffffd5b0,0x7fffffffd5a8,0x800bbcc93,0xd) = 0 (0x0)
>> __sysctl(0x7fffffffd5b0,0x2,0x7fffffffd674,0x7fffffffd668,0x0,0x0) = 0 (0x0)
>> mmap(0x0,2097152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34376605696 (0x801016000)
>> munmap(0x801016000,2097152)			 = 0 (0x0)
>> mmap(0x0,4190208,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34376605696 (0x801016000)
>> munmap(0x801016000,2007040)			 = 0 (0x0)
>> munmap(0x801400000,86016)			 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> mmap(0x0,2097152,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,-1,0x0) = 34380709888 (0x801400000)
>> openat(AT_FDCWD,"/dev/pass7",O_RDWR|O_EXCL,00)	 ERR#13 'Permission denied'
>> stat("/usr/share/nls/C/libc.cat",0x7fffffffdf68) ERR#2 'No such file or directory'
>> stat("/usr/share/nls/libc/C",0x7fffffffdf68)	 ERR#2 'No such file or directory'
>> stat("/usr/local/share/nls/C/libc.cat",0x7fffffffdf68) ERR#2 'No such file or directory'
>> stat("/usr/local/share/nls/libc/C",0x7fffffffdf68) ERR#2 'No such file or directory'
>> cannot open SCSI device '/dev/pass7' - Permission denied
>> write(2,"cannot open SCSI device '/dev/pa"...,57) = 57 (0x39)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> sigprocmask(SIG_BLOCK,{ SIGHUP|SIGINT|SIGQUIT|SIGKILL|SIGPIPE|SIGALRM|SIGTERM|SIGURG|SIGSTOP|SIGTSTP|SIGCONT|SIGCHLD|SIGTTIN|SIGTTOU|SIGIO|SIGXCPU|SIGXFSZ|SIGVTALRM|SIGPROF|SIGWINCH|SIGINFO|SIGUSR1|SIGUSR2 },{ }) = 0 (0x0)
>> sigprocmask(SIG_SETMASK,{ },0x0)		 = 0 (0x0)
>> exit(0x1)					
>> process exit, rval = 1
>> 
>> -- 
>> Dan Langille - BSDCan / PGCon
>> dan at langille.org
> 



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