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libseccomp
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tests/02-sim-basic.c
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Paul Moore
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11 фев 2016, 21:38
11 фев 2016, 21:38
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/** * 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>. */ /* * Just like mode 1 seccomp we allow 4 syscalls: * read, write, exit, and rt_sigreturn */ #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; rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, SCMP_SYS(read), 0); if (rc != 0) goto out; rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, SCMP_SYS(write), 0); if (rc != 0) goto out; rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, SCMP_SYS(close), 0); if (rc != 0) goto out; rc = seccomp_rule_add_exact(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); }