/* $OpenBSD: register.c,v 1.17 2006/03/12 20:56:10 sturm Exp $ */ /* * Copyright 2002 Niels Provos * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Niels Provos. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include "intercept.h" #include "systrace.h" #define X(x) if ((x) == -1) \ err(1, "%s:%d: intercept failed", __func__, __LINE__) void systrace_initcb(void) { struct systrace_alias *alias; struct intercept_translate *tl; X(intercept_init()); X(intercept_register_gencb(gen_cb, NULL)); X(intercept_register_sccb("native", "open", trans_cb, NULL)); tl = intercept_register_transfn("native", "open", 0); intercept_register_translation("native", "open", 1, &ic_oflags); alias = systrace_new_alias("native", "open", "native", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "connect", trans_cb, NULL)); intercept_register_translation("native", "connect", 1, &ic_translate_connect); X(intercept_register_sccb("native", "sendto", trans_cb, NULL)); intercept_register_translation("native", "sendto", 4, &ic_translate_connect); X(intercept_register_sccb("native", "bind", trans_cb, NULL)); intercept_register_translation("native", "bind", 1, &ic_translate_connect); X(intercept_register_sccb("native", "execve", trans_cb, NULL)); intercept_register_transfn("native", "execve", 0); intercept_register_translation("native", "execve", 1, &ic_trargv); X(intercept_register_sccb("native", "stat", trans_cb, NULL)); tl = intercept_register_transfn("native", "stat", 0); alias = systrace_new_alias("native", "stat", "native", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "lstat", trans_cb, NULL)); tl = intercept_register_translation("native", "lstat", 0, &ic_translate_unlinkname); alias = systrace_new_alias("native", "lstat", "native", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "unlink", trans_cb, NULL)); tl = intercept_register_translation("native", "unlink", 0, &ic_translate_unlinkname); alias = systrace_new_alias("native", "unlink", "native", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "truncate", trans_cb, NULL)); tl = intercept_register_transfn("native", "truncate", 0); alias = systrace_new_alias("native", "truncate", "native", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "mkfifo", trans_cb, NULL)); tl = intercept_register_transfn("native", "mkfifo", 0); intercept_register_translation("native", "mkfifo", 1, &ic_modeflags); alias = systrace_new_alias("native", "mkfifo", "native", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "chown", trans_cb, NULL)); intercept_register_transfn("native", "chown", 0); intercept_register_translation("native", "chown", 1, &ic_uidt); intercept_register_translation("native", "chown", 2, &ic_gidt); X(intercept_register_sccb("native", "fchown", trans_cb, NULL)); intercept_register_translation("native", "fchown", 0, &ic_fdt); intercept_register_translation("native", "fchown", 1, &ic_uidt); intercept_register_translation("native", "fchown", 2, &ic_gidt); X(intercept_register_sccb("native", "lchown", trans_cb, NULL)); intercept_register_translation("native", "lchown", 0, &ic_translate_unlinkname); intercept_register_translation("native", "lchown", 1, &ic_uidt); intercept_register_translation("native", "lchown", 2, &ic_gidt); X(intercept_register_sccb("native", "chmod", trans_cb, NULL)); intercept_register_transfn("native", "chmod", 0); intercept_register_translation("native", "chmod", 1, &ic_modeflags); X(intercept_register_sccb("native", "fchmod", trans_cb, NULL)); intercept_register_translation("native", "fchmod", 0, &ic_fdt); intercept_register_translation("native", "fchmod", 1, &ic_modeflags); X(intercept_register_sccb("native", "chflags", trans_cb, NULL)); intercept_register_transfn("native", "chflags", 0); intercept_register_translation("native", "chflags", 1, &ic_fileflags); X(intercept_register_sccb("native", "readlink", trans_cb, NULL)); tl = intercept_register_translation("native", "readlink", 0, &ic_translate_unlinkname); alias = systrace_new_alias("native", "readlink", "native", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "chdir", trans_cb, NULL)); intercept_register_transfn("native", "chdir", 0); X(intercept_register_sccb("native", "chroot", trans_cb, NULL)); intercept_register_transfn("native", "chroot", 0); X(intercept_register_sccb("native", "access", trans_cb, NULL)); tl = intercept_register_transfn("native", "access", 0); alias = systrace_new_alias("native", "access", "native", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "mkdir", trans_cb, NULL)); tl = intercept_register_translation("native", "mkdir", 0, &ic_translate_unlinkname); alias = systrace_new_alias("native", "mkdir", "native", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "rmdir", trans_cb, NULL)); tl = intercept_register_transfn("native", "rmdir", 0); alias = systrace_new_alias("native", "rmdir", "native", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("native", "rename", trans_cb, NULL)); intercept_register_translation("native", "rename", 0, &ic_translate_unlinkname); intercept_register_transfn("native", "rename", 1); X(intercept_register_sccb("native", "symlink", trans_cb, NULL)); intercept_register_transstring("native", "symlink", 0); intercept_register_transfn("native", "symlink", 1); X(intercept_register_sccb("native", "link", trans_cb, NULL)); intercept_register_transfn("native", "link", 0); intercept_register_transfn("native", "link", 1); X(intercept_register_sccb("native", "setuid", trans_cb, NULL)); intercept_register_translation("native", "setuid", 0, &ic_uidt); intercept_register_translation("native", "setuid", 0, &ic_uname); X(intercept_register_sccb("native", "seteuid", trans_cb, NULL)); intercept_register_translation("native", "seteuid", 0, &ic_uidt); intercept_register_translation("native", "seteuid", 0, &ic_uname); X(intercept_register_sccb("native", "setgid", trans_cb, NULL)); intercept_register_translation("native", "setgid", 0, &ic_gidt); X(intercept_register_sccb("native", "setegid", trans_cb, NULL)); intercept_register_translation("native", "setegid", 0, &ic_gidt); X(intercept_register_sccb("native", "socket", trans_cb, NULL)); intercept_register_translation("native", "socket", 0, &ic_sockdom); intercept_register_translation("native", "socket", 1, &ic_socktype); X(intercept_register_sccb("native", "kill", trans_cb, NULL)); intercept_register_translation("native", "kill", 0, &ic_pidname); intercept_register_translation("native", "kill", 1, &ic_signame); X(intercept_register_sccb("native", "fcntl", trans_cb, NULL)); intercept_register_translation("native", "fcntl", 1, &ic_fcntlcmd); X(intercept_register_sccb("native", "mmap", trans_cb, NULL)); intercept_register_translation("native", "mmap", 2, &ic_memprot); X(intercept_register_sccb("native", "mprotect", trans_cb, NULL)); intercept_register_translation("native", "mprotect", 2, &ic_memprot); X(intercept_register_sccb("linux", "open", trans_cb, NULL)); tl = intercept_register_translink("linux", "open", 0); intercept_register_translation("linux", "open", 1, &ic_linux_oflags); alias = systrace_new_alias("linux", "open", "linux", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "stat", trans_cb, NULL)); tl = intercept_register_translink("linux", "stat", 0); alias = systrace_new_alias("linux", "stat", "linux", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "lstat", trans_cb, NULL)); tl = intercept_register_translink("linux", "lstat", 0); alias = systrace_new_alias("linux", "lstat", "linux", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "execve", trans_cb, NULL)); intercept_register_translink("linux", "execve", 0); X(intercept_register_sccb("linux", "access", trans_cb, NULL)); tl = intercept_register_translink("linux", "access", 0); alias = systrace_new_alias("linux", "access", "linux", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "symlink", trans_cb, NULL)); intercept_register_transstring("linux", "symlink", 0); intercept_register_translink("linux", "symlink", 1); X(intercept_register_sccb("linux", "link", trans_cb, NULL)); intercept_register_translink("linux", "link", 0); intercept_register_translink("linux", "link", 1); X(intercept_register_sccb("linux", "readlink", trans_cb, NULL)); tl = intercept_register_translink("linux", "readlink", 0); alias = systrace_new_alias("linux", "readlink", "linux", "fsread"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "rename", trans_cb, NULL)); intercept_register_translink("linux", "rename", 0); intercept_register_translink("linux", "rename", 1); X(intercept_register_sccb("linux", "mkdir", trans_cb, NULL)); tl = intercept_register_translink("linux", "mkdir", 0); alias = systrace_new_alias("linux", "mkdir", "linux", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "rmdir", trans_cb, NULL)); tl = intercept_register_translink("linux", "rmdir", 0); alias = systrace_new_alias("linux", "rmdir", "linux", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "unlink", trans_cb, NULL)); tl = intercept_register_translink("linux", "unlink", 0); alias = systrace_new_alias("linux", "unlink", "linux", "fswrite"); systrace_alias_add_trans(alias, tl); X(intercept_register_sccb("linux", "chmod", trans_cb, NULL)); intercept_register_translink("linux", "chmod", 0); intercept_register_translation("linux", "chmod", 1, &ic_modeflags); X(intercept_register_execcb(execres_cb, NULL)); X(intercept_register_pfreecb(policyfree_cb, NULL)); }