/*
 * AppArmor security module
 *
 * This file contains AppArmor ipc mediation
 *
 * Copyright (C) 1998-2008 Novell/SUSE
 * Copyright 2009-2010 Canonical Ltd.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, version 2 of the
 * License.
 */

#include <linux/gfp.h>
#include <linux/ptrace.h>

#include "include/audit.h"
#include "include/capability.h"
#include "include/context.h"
#include "include/policy.h"
#include "include/ipc.h"

/* call back to audit ptrace fields */
static void audit_cb(struct audit_buffer *ab, void *va)
{
	struct common_audit_data *sa = va;
	audit_log_format(ab, " target=");
	audit_log_untrustedstring(ab, sa->aad->target);
}

/**
 * aa_audit_ptrace - do auditing for ptrace
 * @profile: profile being enforced  (NOT NULL)
 * @target: profile being traced (NOT NULL)
 * @error: error condition
 *
 * Returns: %0 or error code
 */
static int aa_audit_ptrace(struct aa_profile *profile,
			   struct aa_profile *target, int error)
{
	struct common_audit_data sa;
	struct apparmor_audit_data aad = {0,};
	sa.type = LSM_AUDIT_DATA_NONE;
	sa.aad = &aad;
	aad.op = OP_PTRACE;
	aad.target = target;
	aad.error = error;

	return aa_audit(AUDIT_APPARMOR_AUTO, profile, GFP_ATOMIC, &sa,
			audit_cb);
}

/**
 * aa_may_ptrace - test if tracer task can trace the tracee
 * @tracer: profile of the task doing the tracing  (NOT NULL)
 * @tracee: task to be traced
 * @mode: whether PTRACE_MODE_READ || PTRACE_MODE_ATTACH
 *
 * Returns: %0 else error code if permission denied or error
 */
int aa_may_ptrace(struct aa_profile *tracer, struct aa_profile *tracee,
		  unsigned int mode)
{
	/* TODO: currently only based on capability, not extended ptrace
	 *       rules,
	 *       Test mode for PTRACE_MODE_READ || PTRACE_MODE_ATTACH
	 */

	if (unconfined(tracer) || tracer == tracee)
		return 0;
	/* log this capability request */
	return aa_capable(tracer, CAP_SYS_PTRACE, 1);
}

/**
 * aa_ptrace - do ptrace permission check and auditing
 * @tracer: task doing the tracing (NOT NULL)
 * @tracee: task being traced (NOT NULL)
 * @mode: ptrace mode either PTRACE_MODE_READ || PTRACE_MODE_ATTACH
 *
 * Returns: %0 else error code if permission denied or error
 */
int aa_ptrace(struct task_struct *tracer, struct task_struct *tracee,
	      unsigned int mode)
{
	/*
	 * tracer can ptrace tracee when
	 * - tracer is unconfined ||
	 *   - tracer is in complain mode
	 *   - tracer has rules allowing it to trace tracee currently this is:
	 *       - confined by the same profile ||
	 *       - tracer profile has CAP_SYS_PTRACE
	 */

	struct aa_profile *tracer_p = aa_get_task_profile(tracer);
	int error = 0;

	if (!unconfined(tracer_p)) {
		struct aa_profile *tracee_p = aa_get_task_profile(tracee);

		error = aa_may_ptrace(tracer_p, tracee_p, mode);
		error = aa_audit_ptrace(tracer_p, tracee_p, error);

		aa_put_profile(tracee_p);
	}
	aa_put_profile(tracer_p);

	return error;
}
1d9b65fafa05fd6601b6a2ffc7'>appletalk</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/appletalk/sysctl_net_atalk.c?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'>sysctl_net_atalk.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Andrej Krutak &lt;dev@andree.sk&gt;</td><td class='right'>2016-10-05 17:46:09 +0200</td></tr>
<tr><th>committer</th><td>Takashi Iwai &lt;tiwai@suse.de&gt;</td><td class='right'>2016-10-10 12:07:29 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/appletalk/sysctl_net_atalk.c?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'>b907900ec4065e1d9b65fafa05fd6601b6a2ffc7</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/appletalk/sysctl_net_atalk.c?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'>d96de603c6fddb9a7ab1c7be795d5edb2f5bb4f7</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/appletalk/sysctl_net_atalk.c?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'>net/appletalk/sysctl_net_atalk.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/appletalk/sysctl_net_atalk.c?id=eeea8b40cd2866ca24f25e5ef09225edb076ae45'>eeea8b40cd2866ca24f25e5ef09225edb076ae45</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/appletalk/sysctl_net_atalk.c?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7&amp;id2=eeea8b40cd2866ca24f25e5ef09225edb076ae45'>diff</a>)</td></tr></table>
<div class='commit-subject'>ALSA: line6: Fix POD X3 Live audio input</div><div class='commit-msg'>The commit c039aaa77a7d1d9375665a8b59ec16dc7d23e259 was incomplete,
missing part of the setup for Live. This makes also audio input work,
in addition to audio output.

Fixes: c039aaa77a7d1d9375665a8b59ec16dc7d23e259
Reported-by: Eddi De Pieri &lt;eddi@depieri.net&gt;
Signed-off-by: Andrej Krutak &lt;dev@andree.sk&gt;
Signed-off-by: Takashi Iwai &lt;tiwai@suse.de&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=b907900ec4065e1d9b65fafa05fd6601b6a2ffc7'>Diffstat</a> (limited to 'net/appletalk/sysctl_net_atalk.c')</div><table summary='diffstat' class='diffstat'>