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-rw-r--r--tests/53-sim-binary_tree.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/tests/53-sim-binary_tree.c b/tests/53-sim-binary_tree.c
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+++ b/tests/53-sim-binary_tree.c
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+/**
+ * Seccomp Library test program
+ *
+ * Copyright (c) 2018-2020 Oracle and/or its affiliates.
+ * 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 <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <seccomp.h>
+
+#include "util.h"
+
+#define ARG_COUNT_MAX 2
+
+struct syscall_errno {
+ int syscall;
+ int error;
+ int arg_cnt;
+ /* To make the test more interesting, arguments are added to several
+ * syscalls. To keep the test simple, the arguments always use
+ * SCMP_CMP_EQ.
+ */
+ int args[ARG_COUNT_MAX];
+};
+
+struct syscall_errno table[] = {
+ { SCMP_SYS(read), 0, 0, { 0, 0 } },
+ { SCMP_SYS(write), 1, 0, { 0, 0 } },
+ { SCMP_SYS(open), 2, 0, { 0, 0 } },
+ { SCMP_SYS(close), 3, 2, { 100, 101 } },
+ { SCMP_SYS(stat), 4, 0, { 0, 0 } },
+ { SCMP_SYS(fstat), 5, 0, { 0, 0 } },
+ { SCMP_SYS(lstat), 6, 0, { 0, 0 } },
+ { SCMP_SYS(poll), 7, 1, { 102, 0 } },
+ { SCMP_SYS(lseek), 8, 2, { 103, 104 } },
+ { SCMP_SYS(mmap), 9, 0, { 0, 0 } },
+ { SCMP_SYS(mprotect), 10, 0, { 0, 0 } },
+ { SCMP_SYS(munmap), 11, 0, { 0, 0 } },
+ { SCMP_SYS(brk), 12, 0, { 0, 0 } },
+ { SCMP_SYS(rt_sigaction), 13, 0, { 0, 0 } },
+ { SCMP_SYS(rt_sigprocmask), 14, 0, { 0, 0 } },
+ { SCMP_SYS(rt_sigreturn), 15, 0, { 0, 0 } },
+ { SCMP_SYS(ioctl), 16, 0, { 0, 0 } },
+ { SCMP_SYS(pread64), 17, 1, { 105, 0 } },
+ { SCMP_SYS(pwrite64), 18, 0, { 0, 0 } },
+ { SCMP_SYS(readv), 19, 0, { 0, 0 } },
+ { SCMP_SYS(writev), 20, 0, { 0, 0 } },
+ { SCMP_SYS(access), 21, 0, { 0, 0 } },
+ { SCMP_SYS(pipe), 22, 0, { 0, 0 } },
+ { SCMP_SYS(select), 23, 2, { 106, 107 } },
+ { SCMP_SYS(sched_yield), 24, 0, { 0, 0 } },
+ { SCMP_SYS(mremap), 25, 2, { 108, 109 } },
+ { SCMP_SYS(msync), 26, 0, { 0, 0 } },
+ { SCMP_SYS(mincore), 27, 0, { 0, 0 } },
+ { SCMP_SYS(madvise), 28, 0, { 0, 0 } },
+ { SCMP_SYS(dup), 32, 1, { 112, 0 } },
+ { SCMP_SYS(dup2), 33, 0, { 0, 0 } },
+ { SCMP_SYS(pause), 34, 0, { 0, 0 } },
+ { SCMP_SYS(nanosleep), 35, 0, { 0, 0 } },
+ { SCMP_SYS(getitimer), 36, 0, { 0, 0 } },
+ { SCMP_SYS(alarm), 37, 0, { 0, 0 } },
+};
+
+const int table_size = sizeof(table) / sizeof(table[0]);
+
+int main(int argc, char *argv[])
+{
+ int rc, i;
+ 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_ALLOW);
+ if (ctx == NULL) {
+ rc = ENOMEM;
+ goto out;
+ }
+
+ rc = seccomp_arch_remove(ctx, SCMP_ARCH_NATIVE);
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_arch_add(ctx, SCMP_ARCH_AARCH64);
+ if (rc != 0)
+ goto out;
+ rc = seccomp_arch_add(ctx, SCMP_ARCH_PPC64LE);
+ if (rc != 0)
+ goto out;
+ rc = seccomp_arch_add(ctx, SCMP_ARCH_X86_64);
+ if (rc != 0)
+ goto out;
+
+ rc = seccomp_attr_set(ctx, SCMP_FLTATR_CTL_OPTIMIZE, 2);
+ if (rc < 0)
+ goto out;
+
+ for (i = 0; i < table_size; i++) {
+ switch (table[i].arg_cnt) {
+ case 2:
+ rc = seccomp_rule_add(ctx,
+ SCMP_ACT_ERRNO(table[i].error),
+ table[i].syscall, 2,
+ SCMP_A0(SCMP_CMP_EQ,
+ table[i].args[0]),
+ SCMP_A1(SCMP_CMP_EQ,
+ table[i].args[1]));
+ break;
+ case 1:
+ rc = seccomp_rule_add(ctx,
+ SCMP_ACT_ERRNO(table[i].error),
+ table[i].syscall, 1,
+ SCMP_A0(SCMP_CMP_EQ,
+ table[i].args[0]));
+ break;
+ case 0:
+ default:
+ rc = seccomp_rule_add(ctx,
+ SCMP_ACT_ERRNO(table[i].error),
+ table[i].syscall, 0);
+ break;
+ }
+
+ if (rc < 0)
+ goto out;
+ }
+
+ rc = util_filter_output(&opts, ctx);
+ if (rc)
+ goto out;
+
+out:
+ seccomp_release(ctx);
+ return (rc < 0 ? -rc : rc);
+}