This patch reverts commit 2131 which added support for the newer apache
2.4 ap_hook_check_access_ex() api, based on a report from Christian that
it broke apache's simple authentication.
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Bug: https://bugs.launchpad.net/bugs/1322778
Between the apparmor 2.8.2 and 2.8.3, a bug was fixed in mod_apparmor
(in 2.8 revno 2120) that corrected the storage location for
AADefaultHatName. The incorrect storage caused the hat specified by
the AADefaultHatName keyword to be the default value for AAHatName,
and meant that if both an AAHatName and an AADefaultHatName entry
were given in a vhost, mod_apparmor would not fall back to trying
AADefaultHatName if the hat specified in AAHatName did not exist in
the apache apparmor profile.
However, because the value specified in AADefaultHatName was the
default, if no AAHatName was specified, it would be attempted first,
before a hat based on the passed URI, rather than after as the
documentation stated and the code intended. By fixing the storage bug,
the attempted hat ordering now matched the documentation. But a number
of users came to rely on AADefaultHatName being attempted before the
URI. Additionally, because the 2.8 mod_apparmor attempts each hat
individually (rather than use the aa_change_hatv like trunk's
mod_apparmor), each attempt with the URI-based hatname is logged by the
kernel portion of apparmor, making system logs particularly noisy those
same users.
This patch re-adjusts the ordering so that the URI-based hat is
attempted after the hat specified by AADefaultHatName is attempted,
thus maintaining the actual behavior before the bug addressed in
revno 2120 was fixed.
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Seth Arnold <seth.arnold@canonical.com>
Bug: https://launchpad.net/bugs/1322778
Merged from trunk revno: 2340
This patch includes the errno in the log messages generated by two
different failed aa_change_hat() calls and the failure to open
/dev/urandom to get the random token, to further ease failure
diagnosis.
2.8 Note: did not apply cleanly, required manual adjustment.
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Merge from trunk revno: 2335
When defining an AADefaultHatName entry, it was being stored in the
passed mconfig location, which is not the module specific server
config, but instead the top level (i.e. no path defined) default
directory/location config. This would be superceded by a more specific
directory config if it applied to the request. Thus, if an AAHatName was
defined that applied, but the named hat was not defined in the apparmor
policy, mod_apparmor would not attempt to fall back to the defined
AADefaultHatName, but instead jump directly to trying the DEFAULT_URI
hat.
This patch fixes it by storing the defined AADefaultHatName correctly in
the module specific storage in the related server data structure. It
also adds a bit of developer debugging statements.
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Merge from trunk revno: 2334
This patch adds the name of the hat to the log message about the
initial aa_change_hat call, just to be explicit about what's happening
when debugging and changes the formatting slightly of the exiting
change_hat log message.
Patch history:
v1: initial version
v2: tweak output of exit trace message
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Merge from trunk revno: 2333
mod_apparmor never got converted to use the renamed aa_change_hat()
call (there's a compatibility macro in sys/apparmor.h); this patch does
that as well as converting the type of the magic_token to long from int.
(This patch is somewhat mooted by a later patch in the series to
convert to using aa_change_hatv(), but would be a safer candidate
for e.g. the 2.8 branch.)
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Merge from trunk revno: 2332
This patch converts the debug_dump_uri() function to use the trace
loglevels and enable it all the time, rather than just when DEBUG is
defined at compile time.
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Merged from trunk revno: 2331
Apache 2.4 added addition logging levels. This patch converts some of
the log messages that are more intended for mod_apparmor development
and debugging than for sysadmins configuring mod_apparmor to use trace1
(APLOG_TRACE1) level instead. Since apache 2.2. does not contain this
level (or define), we define it back to APLOG_DEBUG.
Patch history:
v1: initial version
v2: mark a couple of additional log messages as trace1 level
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de>
Merge from trunk revno: 2330
The apache2 mod_apparmor module was failing to log debugging messages
when the apache loglevel was set to debug or lower (i.e. traceN). This
patch fixes it by using ap_log_rerror() (for request specific messages,
with the request passed for context) and ap_log_error() (more general
messages outside of a request context).
Also, the APLOG_USE_MODULE macro is called, to mark the log messages
as belonging to the apparmor module, so that the apache 2.4 feature
of enabling debug logging for just the apparmor module will work,
with an apache configuration entry like:
LogLevel apparmor:debug
See
http://ci.apache.org/projects/httpd/trunk/doxygen/group__APACHE__CORE__LOG.html
for specific about the ap_log_*error() and APLOG_USE_MODULE functions
and macros, and
http://httpd.apache.org/docs/2.4/mod/core.html.en#loglevel
for the bits about module specific logging.
Patch history:
v1: initial version
v2: - revert to using ap_log_error with (the 2.4 specific)
ap_server_conf outside of a request specific context, as the
pool specific ap_log_perror messages weren't being reported.
- add compatibility workaround for apache 2.2
v3: keep commented out merge function's log call consistent with the
others
For 2.8:
Signed-off-by: Steve Beattie <steve@nxnw.org>
Acked-by: Christian Boltz <apparmor@cboltz.de> (on IRC)
