Skip to content

R
raspberrypi-kernel

openeuler / raspberrypi-kernel

通知 13
Star 1
Fork 0
R
raspberrypi-kernel
切换分支/标签
  1. 20 3月, 2014 9 次提交
    • R
      pid: get pid_t ppid of task in init_pid_ns · ad36d282
      由 Richard Guy Briggs 提交于 
      Added the functions task_ppid_nr_ns() and task_ppid_nr() to abstract the lookup
of the PPID (real_parent's pid_t) of a process, including rcu locking, in the
arbitrary and init_pid_ns.
This provides an alternative to sys_getppid(), which is relative to the child
process' pid namespace.

(informed by ebiederman's 6c621b7e)
Cc: stable@vger.kernel.org
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: NRichard Guy Briggs <rgb@redhat.com>
      ad36d282
    • R
      audit: rename the misleading audit_get_context() to audit_take_context() · 4a3eb726
      由 Richard Guy Briggs 提交于 
      "get" usually implies incrementing a refcount into a structure to indicate a
reference being held by another part of code.

Change this function name to indicate it is in fact being taken from it,
returning the value while clearing it in the supplying structure.
Signed-off-by: NRichard Guy Briggs <rgb@redhat.com>
      4a3eb726
    • A
      audit: Add generic compat syscall support · 4b588411
      由 AKASHI Takahiro 提交于 
      lib/audit.c provides a generic function for auditing system calls.
This patch extends it for compat syscall support on bi-architectures
(32/64-bit) by adding lib/compat_audit.c.
What is required to support this feature are:
 * add asm/unistd32.h for compat system call names
 * select CONFIG_AUDIT_ARCH_COMPAT_GENERIC
Signed-off-by: NAKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      4b588411
    • A
      audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALL · 7a017721
      由 AKASHI Takahiro 提交于 
      Currently AUDITSYSCALL has a long list of architecture depencency:
       depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML ||
		SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA)
The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL
for simplicity.
Signed-off-by: NAKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com> (arm)
Acked-by: Richard Guy Briggs <rgb@redhat.com> (audit)
Acked-by: Matt Turner <mattst88@gmail.com> (alpha)
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: NEric Paris <eparis@redhat.com>
      7a017721
    • 蔡
      alpha: Enable system-call auditing support. · 015d991f
      由 蔡正龙 提交于 
      Signed-off-by: NZhenglong.cai <zhenglong.cai@cs2c.com.cn>
Signed-off-by: NMatt Turner <mattst88@gmail.com>
      015d991f
    • E
      audit: Send replies in the proper network namespace. · 099dd235
      由 Eric W. Biederman 提交于 
      In perverse cases of file descriptor passing the current network
namespace of a process and the network namespace of a socket used by
that socket may differ.  Therefore use the network namespace of the
appropiate socket to ensure replies always go to the appropiate
socket.
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      099dd235
    • E
      audit: Use struct net not pid_t to remember the network namespce to reply in · 638a0fd2
      由 Eric W. Biederman 提交于 
      While reading through 3.14-rc1 I found a pretty siginficant mishandling
of network namespaces in the recent audit changes.

In struct audit_netlink_list and audit_reply add a reference to the
network namespace of the caller and remove the userspace pid of the
caller.  This cleanly remembers the callers network namespace, and
removes a huge class of races and nasty failure modes that can occur
when attempting to relook up the callers network namespace from a pid_t
(including the caller's network namespace changing, pid wraparound, and
the pid simply not being present).
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      638a0fd2
    • W
      audit: Audit proc/<pid>/cmdline aka proctitle · 3f1c8250
      由 William Roberts 提交于 
      During an audit event, cache and print the value of the process's
proctitle value (proc/<pid>/cmdline). This is useful in situations
where processes are started via fork'd virtual machines where the
comm field is incorrect. Often times, setting the comm field still
is insufficient as the comm width is not very wide and most
virtual machine "package names" do not fit. Also, during execution,
many threads have their comm field set as well. By tying it back to
the global cmdline value for the process, audit records will be more
complete in systems with these properties. An example of where this
is useful and applicable is in the realm of Android. With Android,
their is no fork/exec for VM instances. The bare, preloaded Dalvik
VM listens for a fork and specialize request. When this request comes
in, the VM forks, and the loads the specific application (specializing).
This was done to take advantage of COW and to not require a load of
basic packages by the VM on very app spawn. When this spawn occurs,
the package name is set via setproctitle() and shows up in procfs.
Many of these package names are longer then 16 bytes, the historical
width of task->comm. Having the cmdline in the audit records will
couple the application back to the record directly. Also, on my
Debian development box, some audit records were more useful then
what was printed under comm.

The cached proctitle is tied to the life-cycle of the audit_context
structure and is built on demand.

Proctitle is controllable by userspace, and thus should not be trusted.
It is meant as an aid to assist in debugging. The proctitle event is
emitted during syscall audits, and can be filtered with auditctl.

Example:
type=AVC msg=audit(1391217013.924:386): avc:  denied  { getattr } for  pid=1971 comm="mkdir" name="/" dev="selinuxfs" ino=1 scontext=system_u:system_r:consolekit_t:s0-s0:c0.c255 tcontext=system_u:object_r:security_t:s0 tclass=filesystem
type=SYSCALL msg=audit(1391217013.924:386): arch=c000003e syscall=137 success=yes exit=0 a0=7f019dfc8bd7 a1=7fffa6aed2c0 a2=fffffffffff4bd25 a3=7fffa6aed050 items=0 ppid=1967 pid=1971 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="mkdir" exe="/bin/mkdir" subj=system_u:system_r:consolekit_t:s0-s0:c0.c255 key=(null)
type=UNKNOWN[1327] msg=audit(1391217013.924:386):  proctitle=6D6B646972002D70002F7661722F72756E2F636F6E736F6C65

Acked-by: Steve Grubb <sgrubb@redhat.com> (wrt record formating)
Signed-off-by: NWilliam Roberts <wroberts@tresys.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      3f1c8250
    • W
      proc: Update get proc_pid_cmdline() to use mm.h helpers · 21a6457a
      由 William Roberts 提交于 
      Re-factor proc_pid_cmdline() to use get_cmdline() helper
from mm.h.
Acked-by: NDavid Rientjes <rientjes@google.com>
Acked-by: NStephen Smalley <sds@tycho.nsa.gov>
Acked-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NWilliam Roberts <wroberts@tresys.com>
Acked-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      21a6457a
  3. 08 3月, 2014 4 次提交
  5. 20 1月, 2014 4 次提交
  7. 18 1月, 2014 13 次提交
  9. 17 1月, 2014 5 次提交
  11. 16 1月, 2014 5 次提交