| 1 | /** |
| 2 | * Seccomp Library test program |
| 3 | * |
| 4 | * Copyright (c) 2012 Red Hat <pmoore@redhat.com> |
| 5 | * Author: Paul Moore <paul@paul-moore.com> |
| 6 | */ |
| 7 | |
| 8 | /* |
| 9 | * This library is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of version 2.1 of the GNU Lesser General Public License as |
| 11 | * published by the Free Software Foundation. |
| 12 | * |
| 13 | * This library is distributed in the hope that it will be useful, but WITHOUT |
| 14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License |
| 16 | * for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Lesser General Public License |
| 19 | * along with this library; if not, see <http://www.gnu.org/licenses>. |
| 20 | */ |
| 21 | |
| 22 | #include <errno.h> |
| 23 | #include <unistd.h> |
| 24 | |
| 25 | #include <seccomp.h> |
| 26 | |
| 27 | #include "util.h" |
| 28 | |
| 29 | int main(int argc, char *argv[]) |
| 30 | { |
| 31 | int rc; |
| 32 | struct util_options opts; |
| 33 | scmp_filter_ctx ctx = NULL; |
| 34 | |
| 35 | rc = util_getopt(argc, argv, &opts); |
| 36 | if (rc < 0) |
| 37 | goto out; |
| 38 | |
| 39 | ctx = seccomp_init(SCMP_ACT_KILL); |
| 40 | if (ctx == NULL) |
| 41 | return ENOMEM; |
| 42 | |
| 43 | /* the syscall and argument numbers are all fake to make the test |
| 44 | * simpler */ |
| 45 | |
| 46 | rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1000, 3, |
| 47 | SCMP_A0(SCMP_CMP_EQ, 0), |
| 48 | SCMP_A1(SCMP_CMP_EQ, 1), |
| 49 | SCMP_A2(SCMP_CMP_EQ, 2)); |
| 50 | if (rc != 0) |
| 51 | goto out; |
| 52 | |
| 53 | rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1000, 3, |
| 54 | SCMP_A0(SCMP_CMP_EQ, 0), |
| 55 | SCMP_A1(SCMP_CMP_MASKED_EQ, 0x00ff, 1), |
| 56 | SCMP_A2(SCMP_CMP_EQ, 2)); |
| 57 | if (rc != 0) |
| 58 | goto out; |
| 59 | |
| 60 | rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1000, 3, |
| 61 | SCMP_A0(SCMP_CMP_EQ, 0), |
| 62 | SCMP_A1(SCMP_CMP_MASKED_EQ, 0xffff, 11), |
| 63 | SCMP_A2(SCMP_CMP_EQ, 2)); |
| 64 | if (rc != 0) |
| 65 | goto out; |
| 66 | |
| 67 | rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1000, 3, |
| 68 | SCMP_A0(SCMP_CMP_EQ, 0), |
| 69 | SCMP_A1(SCMP_CMP_MASKED_EQ, 0xffff, 111), |
| 70 | SCMP_A2(SCMP_CMP_EQ, 2)); |
| 71 | if (rc != 0) |
| 72 | goto out; |
| 73 | |
| 74 | rc = seccomp_rule_add_exact(ctx, SCMP_ACT_ALLOW, 1000, 3, |
| 75 | SCMP_A0(SCMP_CMP_EQ, 0), |
| 76 | SCMP_A1(SCMP_CMP_MASKED_EQ, 0xff00, 1000), |
| 77 | SCMP_A2(SCMP_CMP_EQ, 2)); |
| 78 | if (rc != 0) |
| 79 | goto out; |
| 80 | |
| 81 | rc = util_filter_output(&opts, ctx); |
| 82 | if (rc) |
| 83 | goto out; |
| 84 | |
| 85 | out: |
| 86 | seccomp_release(ctx); |
| 87 | return (rc < 0 ? -rc : rc); |
| 88 | } |