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/**
* Seccomp Library test program
*
* Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved.
* Author: Tom Hromatka <tom.hromatka@oracle.com>
*/
/*
* This library is free software; you can redistribute it and/or modify it
* under the terms of version 2.1 of the GNU Lesser General Public License as
* published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, see <http://www.gnu.org/licenses>.
*/
#include <errno.h>
#include <unistd.h>
#include <seccomp.h>
#include "util.h"
int main(int argc, char *argv[])
{
int rc;
struct util_options opts;
scmp_filter_ctx ctx = NULL;
rc = util_getopt(argc, argv, &opts);
if (rc < 0)
goto out;
ctx = seccomp_init(SCMP_ACT_KILL);
if (ctx == NULL)
return ENOMEM;
/* note - a "hole" was intentionally left between 64 and 128.
* reads of this size should fall through to the default action -
* SCMP_ACT_KILL in this test's case.
*/
rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_LE, 64));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(5), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 128));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(6), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 256));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(7), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 512));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(8), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 1024));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(9), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 2048));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(10), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 4096));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(11), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 8192));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(12), SCMP_SYS(read), 1,
SCMP_A2(SCMP_CMP_GT, 16384));
if (rc != 0)
goto out;
/* note - a "hole" was intentionally left between 16384 and 32768.
* writes of this size should fall through to the default action -
* SCMP_ACT_KILL in this test's case.
*/
rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_GE, 32768));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(5), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 128));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(6), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 256));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(7), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 512));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(8), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 1024));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(9), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 2048));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(10), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 4096));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(11), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 8192));
if (rc != 0)
goto out;
rc = seccomp_rule_add(ctx, SCMP_ACT_ERRNO(12), SCMP_SYS(write), 1,
SCMP_A2(SCMP_CMP_LT, 16384));
if (rc != 0)
goto out;
rc = util_filter_output(&opts, ctx);
if (rc)
goto out;
out:
seccomp_release(ctx);
return (rc < 0 ? -rc : rc);
}
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