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-rw-r--r--tests/04-sim-multilevel_chains.c87
1 files changed, 87 insertions, 0 deletions
diff --git a/tests/04-sim-multilevel_chains.c b/tests/04-sim-multilevel_chains.c
new file mode 100644
index 0000000..e3e4f9b
--- /dev/null
+++ b/tests/04-sim-multilevel_chains.c
@@ -0,0 +1,87 @@
+/**
+ * Seccomp Library test program
+ *
+ * Copyright (c) 2012 Red Hat <pmoore@redhat.com>
+ * Author: Paul Moore <paul@paul-moore.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 <limits.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;
+
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(openat), 0);
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(close), 0);
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 3,
+ SCMP_A0(SCMP_CMP_EQ, STDIN_FILENO),
+ SCMP_A1(SCMP_CMP_NE, 0x0),
+ SCMP_A2(SCMP_CMP_LT, SSIZE_MAX));
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(write), 3,
+ SCMP_A0(SCMP_CMP_EQ, STDOUT_FILENO),
+ SCMP_A1(SCMP_CMP_NE, 0x0),
+ SCMP_A2(SCMP_CMP_LT, SSIZE_MAX));
+ if (rc != 0)
+ goto out;
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(write), 3,
+ SCMP_A0(SCMP_CMP_EQ, STDERR_FILENO),
+ SCMP_A1(SCMP_CMP_NE, 0x0),
+ SCMP_A2(SCMP_CMP_LT, SSIZE_MAX));
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(close), 0);
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(rt_sigreturn), 0);
+ if (rc != 0)
+ goto out;
+
+ rc = util_filter_output(&opts, ctx);
+ if (rc)
+ goto out;
+
+out:
+ seccomp_release(ctx);
+ return (rc < 0 ? -rc : rc);
+}