01 Jan, 2009

1 commit


20 Dec, 2008

1 commit


14 Nov, 2008

5 commits

  • Allow kernel services to override LSM settings appropriate to the actions
    performed by a task by duplicating a set of credentials, modifying it and then
    using task_struct::cred to point to it when performing operations on behalf of
    a task.

    This is used, for example, by CacheFiles which has to transparently access the
    cache on behalf of a process that thinks it is doing, say, NFS accesses with a
    potentially inappropriate (with respect to accessing the cache) set of
    credentials.

    This patch provides two LSM hooks for modifying a task security record:

    (*) security_kernel_act_as() which allows modification of the security datum
    with which a task acts on other objects (most notably files).

    (*) security_kernel_create_files_as() which allows modification of the
    security datum that is used to initialise the security data on a file that
    a task creates.

    The patch also provides four new credentials handling functions, which wrap the
    LSM functions:

    (1) prepare_kernel_cred()

    Prepare a set of credentials for a kernel service to use, based either on
    a daemon's credentials or on init_cred. All the keyrings are cleared.

    (2) set_security_override()

    Set the LSM security ID in a set of credentials to a specific security
    context, assuming permission from the LSM policy.

    (3) set_security_override_from_ctx()

    As (2), but takes the security context as a string.

    (4) set_create_files_as()

    Set the file creation LSM security ID in a set of credentials to be the
    same as that on a particular inode.

    Signed-off-by: Casey Schaufler [Smack changes]
    Signed-off-by: David Howells
    Signed-off-by: James Morris

    David Howells
     
  • Make execve() take advantage of copy-on-write credentials, allowing it to set
    up the credentials in advance, and then commit the whole lot after the point
    of no return.

    This patch and the preceding patches have been tested with the LTP SELinux
    testsuite.

    This patch makes several logical sets of alteration:

    (1) execve().

    The credential bits from struct linux_binprm are, for the most part,
    replaced with a single credentials pointer (bprm->cred). This means that
    all the creds can be calculated in advance and then applied at the point
    of no return with no possibility of failure.

    I would like to replace bprm->cap_effective with:

    cap_isclear(bprm->cap_effective)

    but this seems impossible due to special behaviour for processes of pid 1
    (they always retain their parent's capability masks where normally they'd
    be changed - see cap_bprm_set_creds()).

    The following sequence of events now happens:

    (a) At the start of do_execve, the current task's cred_exec_mutex is
    locked to prevent PTRACE_ATTACH from obsoleting the calculation of
    creds that we make.

    (a) prepare_exec_creds() is then called to make a copy of the current
    task's credentials and prepare it. This copy is then assigned to
    bprm->cred.

    This renders security_bprm_alloc() and security_bprm_free()
    unnecessary, and so they've been removed.

    (b) The determination of unsafe execution is now performed immediately
    after (a) rather than later on in the code. The result is stored in
    bprm->unsafe for future reference.

    (c) prepare_binprm() is called, possibly multiple times.

    (i) This applies the result of set[ug]id binaries to the new creds
    attached to bprm->cred. Personality bit clearance is recorded,
    but now deferred on the basis that the exec procedure may yet
    fail.

    (ii) This then calls the new security_bprm_set_creds(). This should
    calculate the new LSM and capability credentials into *bprm->cred.

    This folds together security_bprm_set() and parts of
    security_bprm_apply_creds() (these two have been removed).
    Anything that might fail must be done at this point.

    (iii) bprm->cred_prepared is set to 1.

    bprm->cred_prepared is 0 on the first pass of the security
    calculations, and 1 on all subsequent passes. This allows SELinux
    in (ii) to base its calculations only on the initial script and
    not on the interpreter.

    (d) flush_old_exec() is called to commit the task to execution. This
    performs the following steps with regard to credentials:

    (i) Clear pdeath_signal and set dumpable on certain circumstances that
    may not be covered by commit_creds().

    (ii) Clear any bits in current->personality that were deferred from
    (c.i).

    (e) install_exec_creds() [compute_creds() as was] is called to install the
    new credentials. This performs the following steps with regard to
    credentials:

    (i) Calls security_bprm_committing_creds() to apply any security
    requirements, such as flushing unauthorised files in SELinux, that
    must be done before the credentials are changed.

    This is made up of bits of security_bprm_apply_creds() and
    security_bprm_post_apply_creds(), both of which have been removed.
    This function is not allowed to fail; anything that might fail
    must have been done in (c.ii).

    (ii) Calls commit_creds() to apply the new credentials in a single
    assignment (more or less). Possibly pdeath_signal and dumpable
    should be part of struct creds.

    (iii) Unlocks the task's cred_replace_mutex, thus allowing
    PTRACE_ATTACH to take place.

    (iv) Clears The bprm->cred pointer as the credentials it was holding
    are now immutable.

    (v) Calls security_bprm_committed_creds() to apply any security
    alterations that must be done after the creds have been changed.
    SELinux uses this to flush signals and signal handlers.

    (f) If an error occurs before (d.i), bprm_free() will call abort_creds()
    to destroy the proposed new credentials and will then unlock
    cred_replace_mutex. No changes to the credentials will have been
    made.

    (2) LSM interface.

    A number of functions have been changed, added or removed:

    (*) security_bprm_alloc(), ->bprm_alloc_security()
    (*) security_bprm_free(), ->bprm_free_security()

    Removed in favour of preparing new credentials and modifying those.

    (*) security_bprm_apply_creds(), ->bprm_apply_creds()
    (*) security_bprm_post_apply_creds(), ->bprm_post_apply_creds()

    Removed; split between security_bprm_set_creds(),
    security_bprm_committing_creds() and security_bprm_committed_creds().

    (*) security_bprm_set(), ->bprm_set_security()

    Removed; folded into security_bprm_set_creds().

    (*) security_bprm_set_creds(), ->bprm_set_creds()

    New. The new credentials in bprm->creds should be checked and set up
    as appropriate. bprm->cred_prepared is 0 on the first call, 1 on the
    second and subsequent calls.

    (*) security_bprm_committing_creds(), ->bprm_committing_creds()
    (*) security_bprm_committed_creds(), ->bprm_committed_creds()

    New. Apply the security effects of the new credentials. This
    includes closing unauthorised files in SELinux. This function may not
    fail. When the former is called, the creds haven't yet been applied
    to the process; when the latter is called, they have.

    The former may access bprm->cred, the latter may not.

    (3) SELinux.

    SELinux has a number of changes, in addition to those to support the LSM
    interface changes mentioned above:

    (a) The bprm_security_struct struct has been removed in favour of using
    the credentials-under-construction approach.

    (c) flush_unauthorized_files() now takes a cred pointer and passes it on
    to inode_has_perm(), file_has_perm() and dentry_open().

    Signed-off-by: David Howells
    Acked-by: James Morris
    Acked-by: Serge Hallyn
    Signed-off-by: James Morris

    David Howells
     
  • Inaugurate copy-on-write credentials management. This uses RCU to manage the
    credentials pointer in the task_struct with respect to accesses by other tasks.
    A process may only modify its own credentials, and so does not need locking to
    access or modify its own credentials.

    A mutex (cred_replace_mutex) is added to the task_struct to control the effect
    of PTRACE_ATTACHED on credential calculations, particularly with respect to
    execve().

    With this patch, the contents of an active credentials struct may not be
    changed directly; rather a new set of credentials must be prepared, modified
    and committed using something like the following sequence of events:

    struct cred *new = prepare_creds();
    int ret = blah(new);
    if (ret < 0) {
    abort_creds(new);
    return ret;
    }
    return commit_creds(new);

    There are some exceptions to this rule: the keyrings pointed to by the active
    credentials may be instantiated - keyrings violate the COW rule as managing
    COW keyrings is tricky, given that it is possible for a task to directly alter
    the keys in a keyring in use by another task.

    To help enforce this, various pointers to sets of credentials, such as those in
    the task_struct, are declared const. The purpose of this is compile-time
    discouragement of altering credentials through those pointers. Once a set of
    credentials has been made public through one of these pointers, it may not be
    modified, except under special circumstances:

    (1) Its reference count may incremented and decremented.

    (2) The keyrings to which it points may be modified, but not replaced.

    The only safe way to modify anything else is to create a replacement and commit
    using the functions described in Documentation/credentials.txt (which will be
    added by a later patch).

    This patch and the preceding patches have been tested with the LTP SELinux
    testsuite.

    This patch makes several logical sets of alteration:

    (1) execve().

    This now prepares and commits credentials in various places in the
    security code rather than altering the current creds directly.

    (2) Temporary credential overrides.

    do_coredump() and sys_faccessat() now prepare their own credentials and
    temporarily override the ones currently on the acting thread, whilst
    preventing interference from other threads by holding cred_replace_mutex
    on the thread being dumped.

    This will be replaced in a future patch by something that hands down the
    credentials directly to the functions being called, rather than altering
    the task's objective credentials.

    (3) LSM interface.

    A number of functions have been changed, added or removed:

    (*) security_capset_check(), ->capset_check()
    (*) security_capset_set(), ->capset_set()

    Removed in favour of security_capset().

    (*) security_capset(), ->capset()

    New. This is passed a pointer to the new creds, a pointer to the old
    creds and the proposed capability sets. It should fill in the new
    creds or return an error. All pointers, barring the pointer to the
    new creds, are now const.

    (*) security_bprm_apply_creds(), ->bprm_apply_creds()

    Changed; now returns a value, which will cause the process to be
    killed if it's an error.

    (*) security_task_alloc(), ->task_alloc_security()

    Removed in favour of security_prepare_creds().

    (*) security_cred_free(), ->cred_free()

    New. Free security data attached to cred->security.

    (*) security_prepare_creds(), ->cred_prepare()

    New. Duplicate any security data attached to cred->security.

    (*) security_commit_creds(), ->cred_commit()

    New. Apply any security effects for the upcoming installation of new
    security by commit_creds().

    (*) security_task_post_setuid(), ->task_post_setuid()

    Removed in favour of security_task_fix_setuid().

    (*) security_task_fix_setuid(), ->task_fix_setuid()

    Fix up the proposed new credentials for setuid(). This is used by
    cap_set_fix_setuid() to implicitly adjust capabilities in line with
    setuid() changes. Changes are made to the new credentials, rather
    than the task itself as in security_task_post_setuid().

    (*) security_task_reparent_to_init(), ->task_reparent_to_init()

    Removed. Instead the task being reparented to init is referred
    directly to init's credentials.

    NOTE! This results in the loss of some state: SELinux's osid no
    longer records the sid of the thread that forked it.

    (*) security_key_alloc(), ->key_alloc()
    (*) security_key_permission(), ->key_permission()

    Changed. These now take cred pointers rather than task pointers to
    refer to the security context.

    (4) sys_capset().

    This has been simplified and uses less locking. The LSM functions it
    calls have been merged.

    (5) reparent_to_kthreadd().

    This gives the current thread the same credentials as init by simply using
    commit_thread() to point that way.

    (6) __sigqueue_alloc() and switch_uid()

    __sigqueue_alloc() can't stop the target task from changing its creds
    beneath it, so this function gets a reference to the currently applicable
    user_struct which it then passes into the sigqueue struct it returns if
    successful.

    switch_uid() is now called from commit_creds(), and possibly should be
    folded into that. commit_creds() should take care of protecting
    __sigqueue_alloc().

    (7) [sg]et[ug]id() and co and [sg]et_current_groups.

    The set functions now all use prepare_creds(), commit_creds() and
    abort_creds() to build and check a new set of credentials before applying
    it.

    security_task_set[ug]id() is called inside the prepared section. This
    guarantees that nothing else will affect the creds until we've finished.

    The calling of set_dumpable() has been moved into commit_creds().

    Much of the functionality of set_user() has been moved into
    commit_creds().

    The get functions all simply access the data directly.

    (8) security_task_prctl() and cap_task_prctl().

    security_task_prctl() has been modified to return -ENOSYS if it doesn't
    want to handle a function, or otherwise return the return value directly
    rather than through an argument.

    Additionally, cap_task_prctl() now prepares a new set of credentials, even
    if it doesn't end up using it.

    (9) Keyrings.

    A number of changes have been made to the keyrings code:

    (a) switch_uid_keyring(), copy_keys(), exit_keys() and suid_keys() have
    all been dropped and built in to the credentials functions directly.
    They may want separating out again later.

    (b) key_alloc() and search_process_keyrings() now take a cred pointer
    rather than a task pointer to specify the security context.

    (c) copy_creds() gives a new thread within the same thread group a new
    thread keyring if its parent had one, otherwise it discards the thread
    keyring.

    (d) The authorisation key now points directly to the credentials to extend
    the search into rather pointing to the task that carries them.

    (e) Installing thread, process or session keyrings causes a new set of
    credentials to be created, even though it's not strictly necessary for
    process or session keyrings (they're shared).

    (10) Usermode helper.

    The usermode helper code now carries a cred struct pointer in its
    subprocess_info struct instead of a new session keyring pointer. This set
    of credentials is derived from init_cred and installed on the new process
    after it has been cloned.

    call_usermodehelper_setup() allocates the new credentials and
    call_usermodehelper_freeinfo() discards them if they haven't been used. A
    special cred function (prepare_usermodeinfo_creds()) is provided
    specifically for call_usermodehelper_setup() to call.

    call_usermodehelper_setkeys() adjusts the credentials to sport the
    supplied keyring as the new session keyring.

    (11) SELinux.

    SELinux has a number of changes, in addition to those to support the LSM
    interface changes mentioned above:

    (a) selinux_setprocattr() no longer does its check for whether the
    current ptracer can access processes with the new SID inside the lock
    that covers getting the ptracer's SID. Whilst this lock ensures that
    the check is done with the ptracer pinned, the result is only valid
    until the lock is released, so there's no point doing it inside the
    lock.

    (12) is_single_threaded().

    This function has been extracted from selinux_setprocattr() and put into
    a file of its own in the lib/ directory as join_session_keyring() now
    wants to use it too.

    The code in SELinux just checked to see whether a task shared mm_structs
    with other tasks (CLONE_VM), but that isn't good enough. We really want
    to know if they're part of the same thread group (CLONE_THREAD).

    (13) nfsd.

    The NFS server daemon now has to use the COW credentials to set the
    credentials it is going to use. It really needs to pass the credentials
    down to the functions it calls, but it can't do that until other patches
    in this series have been applied.

    Signed-off-by: David Howells
    Acked-by: James Morris
    Signed-off-by: James Morris

    David Howells
     
  • Pass credentials through dentry_open() so that the COW creds patch can have
    SELinux's flush_unauthorized_files() pass the appropriate creds back to itself
    when it opens its null chardev.

    The security_dentry_open() call also now takes a creds pointer, as does the
    dentry_open hook in struct security_operations.

    Signed-off-by: David Howells
    Acked-by: James Morris
    Signed-off-by: James Morris

    David Howells
     
  • Detach the credentials from task_struct, duplicating them in copy_process()
    and releasing them in __put_task_struct().

    Signed-off-by: David Howells
    Acked-by: James Morris
    Acked-by: Serge Hallyn
    Signed-off-by: James Morris

    David Howells
     

14 Aug, 2008

1 commit

  • Fix the setting of PF_SUPERPRIV by __capable() as it could corrupt the flags
    the target process if that is not the current process and it is trying to
    change its own flags in a different way at the same time.

    __capable() is using neither atomic ops nor locking to protect t->flags. This
    patch removes __capable() and introduces has_capability() that doesn't set
    PF_SUPERPRIV on the process being queried.

    This patch further splits security_ptrace() in two:

    (1) security_ptrace_may_access(). This passes judgement on whether one
    process may access another only (PTRACE_MODE_ATTACH for ptrace() and
    PTRACE_MODE_READ for /proc), and takes a pointer to the child process.
    current is the parent.

    (2) security_ptrace_traceme(). This passes judgement on PTRACE_TRACEME only,
    and takes only a pointer to the parent process. current is the child.

    In Smack and commoncap, this uses has_capability() to determine whether
    the parent will be permitted to use PTRACE_ATTACH if normal checks fail.
    This does not set PF_SUPERPRIV.

    Two of the instances of __capable() actually only act on current, and so have
    been changed to calls to capable().

    Of the places that were using __capable():

    (1) The OOM killer calls __capable() thrice when weighing the killability of a
    process. All of these now use has_capability().

    (2) cap_ptrace() and smack_ptrace() were using __capable() to check to see
    whether the parent was allowed to trace any process. As mentioned above,
    these have been split. For PTRACE_ATTACH and /proc, capable() is now
    used, and for PTRACE_TRACEME, has_capability() is used.

    (3) cap_safe_nice() only ever saw current, so now uses capable().

    (4) smack_setprocattr() rejected accesses to tasks other than current just
    after calling __capable(), so the order of these two tests have been
    switched and capable() is used instead.

    (5) In smack_file_send_sigiotask(), we need to allow privileged processes to
    receive SIGIO on files they're manipulating.

    (6) In smack_task_wait(), we let a process wait for a privileged process,
    whether or not the process doing the waiting is privileged.

    I've tested this with the LTP SELinux and syscalls testscripts.

    Signed-off-by: David Howells
    Acked-by: Serge Hallyn
    Acked-by: Casey Schaufler
    Acked-by: Andrew G. Morgan
    Acked-by: Al Viro
    Signed-off-by: James Morris

    David Howells
     

27 Jul, 2008

1 commit


14 Jul, 2008

2 commits


28 Apr, 2008

1 commit

  • Filesystem capability support makes it possible to do away with (set)uid-0
    based privilege and use capabilities instead. That is, with filesystem
    support for capabilities but without this present patch, it is (conceptually)
    possible to manage a system with capabilities alone and never need to obtain
    privilege via (set)uid-0.

    Of course, conceptually isn't quite the same as currently possible since few
    user applications, certainly not enough to run a viable system, are currently
    prepared to leverage capabilities to exercise privilege. Further, many
    applications exist that may never get upgraded in this way, and the kernel
    will continue to want to support their setuid-0 base privilege needs.

    Where pure-capability applications evolve and replace setuid-0 binaries, it is
    desirable that there be a mechanisms by which they can contain their
    privilege. In addition to leveraging the per-process bounding and inheritable
    sets, this should include suppressing the privilege of the uid-0 superuser
    from the process' tree of children.

    The feature added by this patch can be leveraged to suppress the privilege
    associated with (set)uid-0. This suppression requires CAP_SETPCAP to
    initiate, and only immediately affects the 'current' process (it is inherited
    through fork()/exec()). This reimplementation differs significantly from the
    historical support for securebits which was system-wide, unwieldy and which
    has ultimately withered to a dead relic in the source of the modern kernel.

    With this patch applied a process, that is capable(CAP_SETPCAP), can now drop
    all legacy privilege (through uid=0) for itself and all subsequently
    fork()'d/exec()'d children with:

    prctl(PR_SET_SECUREBITS, 0x2f);

    This patch represents a no-op unless CONFIG_SECURITY_FILE_CAPABILITIES is
    enabled at configure time.

    [akpm@linux-foundation.org: fix uninitialised var warning]
    [serue@us.ibm.com: capabilities: use cap_task_prctl when !CONFIG_SECURITY]
    Signed-off-by: Andrew G. Morgan
    Acked-by: Serge Hallyn
    Reviewed-by: James Morris
    Cc: Stephen Smalley
    Cc: Paul Moore
    Signed-off-by: Serge E. Hallyn
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew G. Morgan
     

21 Mar, 2008

1 commit

  • The original justification for cap_task_kill() was as follows:

    check_kill_permission() does appropriate uid equivalence checks.
    However with file capabilities it becomes possible for an
    unprivileged user to execute a file with file capabilities
    resulting in a more privileged task with the same uid.

    However now that cap_task_kill() always returns 0 (permission
    granted) when p->uid==current->uid, the whole hook is worthless,
    and only likely to create more subtle problems in the corner cases
    where it might still be called but return -EPERM. Those cases
    are basically when uids are different but euid/suid is equivalent
    as per the check in check_kill_permission().

    One example of a still-broken application is 'at' for non-root users.

    This patch removes cap_task_kill().

    Signed-off-by: Serge Hallyn
    Acked-by: Andrew G. Morgan
    Earlier-version-tested-by: Luiz Fernando N. Capitulino
    Acked-by: Casey Schaufler
    Signed-off-by: Linus Torvalds

    Serge Hallyn
     

17 Oct, 2007

2 commits

  • Implement file posix capabilities. This allows programs to be given a
    subset of root's powers regardless of who runs them, without having to use
    setuid and giving the binary all of root's powers.

    This version works with Kaigai Kohei's userspace tools, found at
    http://www.kaigai.gr.jp/index.php. For more information on how to use this
    patch, Chris Friedhoff has posted a nice page at
    http://www.friedhoff.org/fscaps.html.

    Changelog:
    Nov 27:
    Incorporate fixes from Andrew Morton
    (security-introduce-file-caps-tweaks and
    security-introduce-file-caps-warning-fix)
    Fix Kconfig dependency.
    Fix change signaling behavior when file caps are not compiled in.

    Nov 13:
    Integrate comments from Alexey: Remove CONFIG_ ifdef from
    capability.h, and use %zd for printing a size_t.

    Nov 13:
    Fix endianness warnings by sparse as suggested by Alexey
    Dobriyan.

    Nov 09:
    Address warnings of unused variables at cap_bprm_set_security
    when file capabilities are disabled, and simultaneously clean
    up the code a little, by pulling the new code into a helper
    function.

    Nov 08:
    For pointers to required userspace tools and how to use
    them, see http://www.friedhoff.org/fscaps.html.

    Nov 07:
    Fix the calculation of the highest bit checked in
    check_cap_sanity().

    Nov 07:
    Allow file caps to be enabled without CONFIG_SECURITY, since
    capabilities are the default.
    Hook cap_task_setscheduler when !CONFIG_SECURITY.
    Move capable(TASK_KILL) to end of cap_task_kill to reduce
    audit messages.

    Nov 05:
    Add secondary calls in selinux/hooks.c to task_setioprio and
    task_setscheduler so that selinux and capabilities with file
    cap support can be stacked.

    Sep 05:
    As Seth Arnold points out, uid checks are out of place
    for capability code.

    Sep 01:
    Define task_setscheduler, task_setioprio, cap_task_kill, and
    task_setnice to make sure a user cannot affect a process in which
    they called a program with some fscaps.

    One remaining question is the note under task_setscheduler: are we
    ok with CAP_SYS_NICE being sufficient to confine a process to a
    cpuset?

    It is a semantic change, as without fsccaps, attach_task doesn't
    allow CAP_SYS_NICE to override the uid equivalence check. But since
    it uses security_task_setscheduler, which elsewhere is used where
    CAP_SYS_NICE can be used to override the uid equivalence check,
    fixing it might be tough.

    task_setscheduler
    note: this also controls cpuset:attach_task. Are we ok with
    CAP_SYS_NICE being used to confine to a cpuset?
    task_setioprio
    task_setnice
    sys_setpriority uses this (through set_one_prio) for another
    process. Need same checks as setrlimit

    Aug 21:
    Updated secureexec implementation to reflect the fact that
    euid and uid might be the same and nonzero, but the process
    might still have elevated caps.

    Aug 15:
    Handle endianness of xattrs.
    Enforce capability version match between kernel and disk.
    Enforce that no bits beyond the known max capability are
    set, else return -EPERM.
    With this extra processing, it may be worth reconsidering
    doing all the work at bprm_set_security rather than
    d_instantiate.

    Aug 10:
    Always call getxattr at bprm_set_security, rather than
    caching it at d_instantiate.

    [morgan@kernel.org: file-caps clean up for linux/capability.h]
    [bunk@kernel.org: unexport cap_inode_killpriv]
    Signed-off-by: Serge E. Hallyn
    Cc: Stephen Smalley
    Cc: James Morris
    Cc: Chris Wright
    Cc: Andrew Morgan
    Signed-off-by: Andrew Morgan
    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Serge E. Hallyn
     
  • Convert LSM into a static interface, as the ability to unload a security
    module is not required by in-tree users and potentially complicates the
    overall security architecture.

    Needlessly exported LSM symbols have been unexported, to help reduce API
    abuse.

    Parameters for the capability and root_plug modules are now specified
    at boot.

    The SECURITY_FRAMEWORK_VERSION macro has also been removed.

    In a nutshell, there is no safe way to unload an LSM. The modular interface
    is thus unecessary and broken infrastructure. It is used only by out-of-tree
    modules, which are often binary-only, illegal, abusive of the API and
    dangerous, e.g. silently re-vectoring SELinux.

    [akpm@linux-foundation.org: cleanups]
    [akpm@linux-foundation.org: USB Kconfig fix]
    [randy.dunlap@oracle.com: fix LSM kernel-doc]
    Signed-off-by: James Morris
    Acked-by: Chris Wright
    Cc: Stephen Smalley
    Cc: "Serge E. Hallyn"
    Acked-by: Arjan van de Ven
    Signed-off-by: Randy Dunlap
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    James Morris
     

09 May, 2007

1 commit


01 Jul, 2006

1 commit


07 Jan, 2006

1 commit

  • Now when kbuild passes KBUILD_MODNAME with "" do not __stringify it when
    used. Remove __stringnify for all users.
    This also fixes the output of:

    $ ls -l /sys/module/
    drwxr-xr-x 4 root root 0 2006-01-05 14:24 pcmcia
    drwxr-xr-x 4 root root 0 2006-01-05 14:24 pcmcia_core
    drwxr-xr-x 3 root root 0 2006-01-05 14:24 "processor"
    drwxr-xr-x 3 root root 0 2006-01-05 14:24 "psmouse"

    The quoting of the module names will be gone again.
    Thanks to GregKH + Kay Sievers for reproting this.

    Signed-off-by: Sam Ravnborg

    Sam Ravnborg
     

17 Apr, 2005

1 commit

  • Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds