diff options
Diffstat (limited to 'tests/24-live-arg_allow.c')
-rw-r--r-- | tests/24-live-arg_allow.c | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/tests/24-live-arg_allow.c b/tests/24-live-arg_allow.c new file mode 100644 index 0000000..f6e746f --- /dev/null +++ b/tests/24-live-arg_allow.c @@ -0,0 +1,93 @@ +/** + * Seccomp Library test program + * + * Copyright (c) 2013 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 <fcntl.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/stat.h> + +#include <seccomp.h> + +#include "util.h" + +int main(int argc, char *argv[]) +{ + int rc; + int fd; + scmp_filter_ctx ctx = NULL; + const char buf[] = "testing"; + ssize_t buf_len = strlen(buf); + + rc = util_action_parse(argv[1]); + if (rc != SCMP_ACT_ALLOW) { + rc = 1; + goto out; + } + + rc = util_trap_install(); + if (rc != 0) + goto out; + + fd = open("/dev/null", O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR); + if (fd < 0) { + rc = errno; + goto out; + } + + ctx = seccomp_init(SCMP_ACT_TRAP); + if (ctx == NULL) + return ENOMEM; + + rc = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(write), 1, + SCMP_A0(SCMP_CMP_EQ, fd)); + 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 = seccomp_rule_add(ctx, SCMP_ACT_ALLOW, SCMP_SYS(exit_group), 0); + if (rc != 0) + goto out; + + rc = seccomp_load(ctx); + if (rc != 0) + goto out; + + if (write(fd, buf, buf_len) < buf_len) { + rc = errno; + goto out; + } + if (close(fd) < 0) { + rc = errno; + goto out; + } + + rc = 160; + +out: + seccomp_release(ctx); + return (rc < 0 ? -rc : rc); +} |