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  1. 03 4月, 2014 1 次提交
  3. 20 3月, 2014 3 次提交
  5. 09 3月, 2014 1 次提交
  7. 08 3月, 2014 1 次提交
  9. 01 3月, 2014 1 次提交
  11. 28 2月, 2014 1 次提交
  13. 14 1月, 2014 5 次提交
  15. 06 11月, 2013 2 次提交
    • E
      audit: do not reject all AUDIT_INODE filter types · 78122037
      由 Eric Paris 提交于 
      commit ab61d38e tried to merge the
invalid filter checking into a single function.  However AUDIT_INODE
filters were not verified in the new generic checker.  Thus such rules
were being denied even though they were perfectly valid.

Ex:
$ auditctl -a exit,always -F arch=b64 -S open -F key=/foo -F inode=6955 -F devmajor=9 -F devminor=1
Error sending add rule data request (Invalid argument)
Signed-off-by: NEric Paris <eparis@redhat.com>
Signed-off-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      78122037
    • R
      audit: change decimal constant to macro for invalid uid · 42f74461
      由 Richard Guy Briggs 提交于 
      SFR reported this 2013-05-15:

> After merging the final tree, today's linux-next build (i386 defconfig)
> produced this warning:
>
> kernel/auditfilter.c: In function 'audit_data_to_entry':
> kernel/auditfilter.c:426:3: warning: this decimal constant is unsigned only
> in ISO C90 [enabled by default]
>
> Introduced by commit 780a7654 ("audit: Make testing for a valid
> loginuid explicit") from Linus' tree.

Replace this decimal constant in the code with a macro to make it more readable
(add to the unsigned cast to quiet the warning).

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: NRichard Guy Briggs <rgb@redhat.com>
Signed-off-by: NEric Paris <eparis@redhat.com>
      42f74461
  17. 10 7月, 2013 3 次提交
  19. 25 5月, 2013 1 次提交
  21. 08 5月, 2013 1 次提交
  23. 01 5月, 2013 4 次提交
  25. 30 4月, 2013 1 次提交
    • C
      kernel/auditfilter.c: tree and watch will memory leak when failure occurs · 373e0f34
      由 Chen Gang 提交于 
      In audit_data_to_entry() when a failure occurs we must check and free
the tree and watch to avoid a memory leak.

  test:
    plan:
      test command:
        "auditctl -a exit,always -w /etc -F auid=-1"
        (on fedora17, need modify auditctl to let "-w /etc" has effect)
      running:
        under fedora17 x86_64, 2 CPUs 3.20GHz, 2.5GB RAM.
        let 15 auditctl processes continue running at the same time.
      monitor command:
        watch -d -n 1 "cat /proc/meminfo | awk '{print \$2}' \
          | head -n 4 | xargs \
          | awk '{print \"used \",\$1 - \$2 - \$3 - \$4}'"

    result:
      for original version:
        will use up all memory, within 3 hours.
        kill all auditctl, the memory still does not free.
      for new version (apply this patch):
        after 14 hours later, not find issues.
Signed-off-by: NChen Gang <gang.chen@asianux.com>
Cc: Eric Paris <eparis@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
      373e0f34
  27. 17 4月, 2013 1 次提交
    • E
      audit: allow checking the type of audit message in the user filter · 62062cf8
      由 Eric Paris 提交于 
      When userspace sends messages to the audit system it includes a type.
We want to be able to filter messages based on that type without have to
do the all or nothing option currently available on the
AUDIT_FILTER_TYPE filter list.  Instead we should be able to use the
AUDIT_FILTER_USER filter list and just use the message type as one part
of the matching decision.
Signed-off-by: NEric Paris <eparis@redhat.com>
      62062cf8
  29. 11 1月, 2013 1 次提交
  31. 12 10月, 2012 4 次提交
  33. 18 9月, 2012 4 次提交
    • E
      userns: Convert the audit loginuid to be a kuid · e1760bd5
      由 Eric W. Biederman 提交于 
      Always store audit loginuids in type kuid_t.

Print loginuids by converting them into uids in the appropriate user
namespace, and then printing the resulting uid.

Modify audit_get_loginuid to return a kuid_t.

Modify audit_set_loginuid to take a kuid_t.

Modify /proc/<pid>/loginuid on read to convert the loginuid into the
user namespace of the opener of the file.

Modify /proc/<pid>/loginud on write to convert the loginuid
rom the user namespace of the opener of the file.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: Paul Moore <paul@paul-moore.com> ?
Cc: David Miller <davem@davemloft.net>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>
      e1760bd5
    • E
      audit: Add typespecific uid and gid comparators · ca57ec0f
      由 Eric W. Biederman 提交于 
      The audit filter code guarantees that uid are always compared with
uids and gids are always compared with gids, as the comparason
operations are type specific.  Take advantage of this proper to define
audit_uid_comparator and audit_gid_comparator which use the type safe
comparasons from uidgid.h.

Build on audit_uid_comparator and audit_gid_comparator and replace
audit_compare_id with audit_compare_uid and audit_compare_gid.  This
is one of those odd cases where being type safe and duplicating code
leads to simpler shorter and more concise code.

Don't allow bitmask operations in uid and gid comparisons in
audit_data_to_entry.  Bitmask operations are already denined in
audit_rule_to_entry.

Convert constants in audit_rule_to_entry and audit_data_to_entry into
kuids and kgids when appropriate.

Convert the uid and gid field in struct audit_names to be of type
kuid_t and kgid_t respectively, so that the new uid and gid comparators
can be applied in a type safe manner.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      ca57ec0f
    • E
      audit: Remove the unused uid parameter from audit_receive_filter · 017143fe
      由 Eric W. Biederman 提交于 
      Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      017143fe
    • E
      audit: Use current instead of NETLINK_CREDS() in audit_filter · 02276bda
      由 Eric W. Biederman 提交于 
      Get caller process uid and gid and pid values from the current task
instead of the NETLINK_CB.  This is simpler than passing NETLINK_CREDS
from from audit_receive_msg to audit_filter_user_rules and avoid the
chance of being hit by the occassional bugs in netlink uid/gid
credential passing.  This is a safe changes because all netlink
requests are processed in the task of the sending process.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: N"Eric W. Biederman" <ebiederm@xmission.com>
      02276bda
  35. 18 1月, 2012 5 次提交
    • E
      audit: allow interfield comparison in audit rules · 02d86a56
      由 Eric Paris 提交于 
      We wish to be able to audit when a uid=500 task accesses a file which is
uid=0.  Or vice versa.  This patch introduces a new audit filter type
AUDIT_FIELD_COMPARE which takes as an 'enum' which indicates which fields
should be compared.  At this point we only define the task->uid vs
inode->uid, but other comparisons can be added.
Signed-off-by: NEric Paris <eparis@redhat.com>
      02d86a56
    • E
      audit: allow audit matching on inode gid · 54d3218b
      由 Eric Paris 提交于 
      Much like the ability to filter audit on the uid of an inode collected, we
should be able to filter on the gid of the inode.
Signed-off-by: NEric Paris <eparis@redhat.com>
      54d3218b
    • E
      audit: allow matching on obj_uid · efaffd6e
      由 Eric Paris 提交于 
      Allow syscall exit filter matching based on the uid of the owner of an
inode used in a syscall.  aka:

auditctl -a always,exit -S open -F obj_uid=0 -F perm=wa
Signed-off-by: NEric Paris <eparis@redhat.com>
      efaffd6e
    • E
      audit: reject entry,always rules · 7ff68e53
      由 Eric Paris 提交于 
      We deprecated entry,always rules a long time ago.  Reject those rules as
invalid.
Signed-off-by: NEric Paris <eparis@redhat.com>
      7ff68e53
    • E
      audit: make filetype matching consistent with other filters · 5ef30ee5
      由 Eric Paris 提交于 
      Every other filter that matches part of the inodes list collected by audit
will match against any of the inodes on that list.  The filetype matching
however had a strange way of doing things.  It allowed userspace to
indicated if it should match on the first of the second name collected by
the kernel.  Name collection ordering seems like a kernel internal and
making userspace rules get that right just seems like a bad idea.  As it
turns out the userspace audit writers had no idea it was doing this and
thus never overloaded the value field.  The kernel always checked the first
name collected which for the tested rules was always correct.

This patch just makes the filetype matching like the major, minor, inode,
and LSM rules in that it will match against any of the names collected.  It
also changes the rule validation to reject the old unused rule types.

Noone knew it was there.  Noone used it.  Why keep around the extra code?
Signed-off-by: NEric Paris <eparis@redhat.com>
      5ef30ee5