diff options
| author | Kees Cook <kees.cook@canonical.com> | 2010-02-04 02:36:43 +0300 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2010-02-04 06:20:12 +0300 |
| commit | 002345925e6c45861f60db6f4fc6236713fd8847 (patch) | |
| tree | d7849eafe1755116597166bbebf43e2bee86cb76 /security/security.c | |
| parent | 0719aaf5ead7555b7b7a4a080ebf2826a871384e (diff) | |
| download | linux-002345925e6c45861f60db6f4fc6236713fd8847.tar.xz | |
syslog: distinguish between /proc/kmsg and syscalls
This allows the LSM to distinguish between syslog functions originating
from /proc/kmsg access and direct syscalls. By default, the commoncaps
will now no longer require CAP_SYS_ADMIN to read an opened /proc/kmsg
file descriptor. For example the kernel syslog reader can now drop
privileges after opening /proc/kmsg, instead of staying privileged with
CAP_SYS_ADMIN. MAC systems that implement security_syslog have unchanged
behavior.
Signed-off-by: Kees Cook <kees.cook@canonical.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security/security.c')
| -rw-r--r-- | security/security.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/security/security.c b/security/security.c index 440afe5eb54c..971092c06f31 100644 --- a/security/security.c +++ b/security/security.c @@ -203,9 +203,9 @@ int security_quota_on(struct dentry *dentry) return security_ops->quota_on(dentry); } -int security_syslog(int type) +int security_syslog(int type, bool from_file) { - return security_ops->syslog(type); + return security_ops->syslog(type, from_file); } int security_settime(struct timespec *ts, struct timezone *tz) |