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NetBSD/bin/systrace/register.c
christos e6c35f2090 2 fixes from Elad: 
1. fix the symlink issue mentioned in:
   http://marc.theaimsgroup.com/?l=openbsd-tech&m=115513754417683&w=2
2. handle socket(2) versioning.
2006-08-21 01:35:11 +00:00

506 lines
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/* $NetBSD: register.c,v 1.19 2006/08/21 01:35:11 christos Exp $ */
/* $OpenBSD: register.c,v 1.11 2002/08/05 14:49:27 provos Exp $ */
/*
* Copyright 2002 Niels Provos <provos@citi.umich.edu>
* 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 <sys/types.h>
#include <sys/param.h>
#include <sys/tree.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <err.h>
#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());
#ifdef __NetBSD__
X(intercept_register_gencb(gen_cb, NULL));
/* 5: open [fswrite] */
X(intercept_register_sccb("netbsd", "open", trans_cb, NULL));
tl = intercept_register_transfn("netbsd", "open", 0);
intercept_register_translation("netbsd", "open", 1, &ic_oflags);
alias = systrace_new_alias("netbsd", "open", "netbsd", "fswrite");
systrace_alias_add_trans(alias, tl);
/* 9: link */
X(intercept_register_sccb("netbsd", "link", trans_cb, NULL));
intercept_register_transfn("netbsd", "link", 0);
intercept_register_transfn("netbsd", "link", 1);
/* 10: unlink [fswrite] */
X(intercept_register_sccb("netbsd", "unlink", trans_cb, NULL));
tl = intercept_register_translation("netbsd", "unlink", 0,
&ic_translate_unlinkname);
alias = systrace_new_alias("netbsd", "unlink", "netbsd", "fswrite");
systrace_alias_add_trans(alias, tl);
/* 12: chdir */
X(intercept_register_sccb("netbsd", "chdir", trans_cb, NULL));
intercept_register_transfn("netbsd", "chdir", 0);
/* 15: chmod */
X(intercept_register_sccb("netbsd", "chmod", trans_cb, NULL));
intercept_register_transfn("netbsd", "chmod", 0);
intercept_register_translation("netbsd", "chmod", 1, &ic_modeflags);
/* 16: chown */
X(intercept_register_sccb("netbsd", "chown", trans_cb, NULL));
intercept_register_transfn("netbsd", "chown", 0);
intercept_register_translation("netbsd", "chown", 1, &ic_uidt);
intercept_register_translation("netbsd", "chown", 2, &ic_gidt);
/* 23: setuid */
X(intercept_register_sccb("netbsd", "setuid", trans_cb, NULL));
intercept_register_translation("netbsd", "setuid", 0, &ic_uidt);
intercept_register_translation("netbsd", "setuid", 0, &ic_uname);
/* 28: sendmsg */
X(intercept_register_sccb("netbsd", "sendmsg", trans_cb, NULL));
intercept_register_translation("netbsd", "sendmsg", 1,
&ic_translate_sendmsg);
/* 33: access [fsread] */
X(intercept_register_sccb("netbsd", "access", trans_cb, NULL));
tl = intercept_register_transfn("netbsd", "access", 0);
alias = systrace_new_alias("netbsd", "access", "netbsd", "fsread");
systrace_alias_add_trans(alias, tl);
/* 37: kill */
X(intercept_register_sccb("netbsd", "kill", trans_cb, NULL));
intercept_register_translation("netbsd", "kill", 0, &ic_pidname);
intercept_register_translation("netbsd", "kill", 1, &ic_signame);
/* 57: symlink */
X(intercept_register_sccb("netbsd", "symlink", trans_cb, NULL));
intercept_register_transstring("netbsd", "symlink", 0);
intercept_register_translation("netbsd", "symlink", 1,
&ic_translate_unlinkname);
/* 58: readlink [fsread] */
X(intercept_register_sccb("netbsd", "readlink", trans_cb, NULL));
tl = intercept_register_translation("netbsd", "readlink", 0,
&ic_translate_unlinkname);
alias = systrace_new_alias("netbsd", "readlink", "netbsd", "fsread");
systrace_alias_add_trans(alias, tl);
/* 59: execve */
X(intercept_register_sccb("netbsd", "execve", trans_cb, NULL));
intercept_register_transfn("netbsd", "execve", 0);
intercept_register_translation("netbsd", "execve", 1, &ic_trargv);
/* 61: chroot */
X(intercept_register_sccb("netbsd", "chroot", trans_cb, NULL));
intercept_register_transfn("netbsd", "chroot", 0);
/* 71: mmap */
X(intercept_register_sccb("netbsd", "mmap", trans_cb, NULL));
intercept_register_translation("netbsd", "mmap", 2, &ic_memprot);
/* 74: mprotect */
X(intercept_register_sccb("netbsd", "mprotect", trans_cb, NULL));
intercept_register_translation("netbsd", "mprotect", 2, &ic_memprot);
/* 92: fcntl */
X(intercept_register_sccb("netbsd", "fcntl", trans_cb, NULL));
intercept_register_translation("netbsd", "fcntl", 1, &ic_fcntlcmd);
/* 97: compat_30_socket*/
X(intercept_register_sccb("netbsd", "compat_30_socket", trans_cb, NULL));
intercept_register_translation("netbsd", "compat_30_socket", 0, &ic_sockdom);
intercept_register_translation("netbsd", "compat_30_socket", 1, &ic_socktype);
/* 98: connect */
X(intercept_register_sccb("netbsd", "connect", trans_cb, NULL));
intercept_register_translation("netbsd", "connect", 1,
&ic_translate_connect);
/* 104: bind */
X(intercept_register_sccb("netbsd", "bind", trans_cb, NULL));
intercept_register_translation("netbsd", "bind", 1,
&ic_translate_connect);
/* 123: fchown */
X(intercept_register_sccb("netbsd", "fchown", trans_cb, NULL));
intercept_register_translation("netbsd", "fchown", 0, &ic_fdt);
intercept_register_translation("netbsd", "fchown", 1, &ic_uidt);
intercept_register_translation("netbsd", "fchown", 2, &ic_gidt);
/* 124: fchmod */
X(intercept_register_sccb("netbsd", "fchmod", trans_cb, NULL));
intercept_register_translation("netbsd", "fchmod", 0, &ic_fdt);
intercept_register_translation("netbsd", "fchmod", 1, &ic_modeflags);
/* 128: rename */
X(intercept_register_sccb("netbsd", "rename", trans_cb, NULL));
intercept_register_translation("netbsd", "rename", 0,
&ic_translate_unlinkname);
intercept_register_transfn("netbsd", "rename", 1);
/* 133: sendto */
X(intercept_register_sccb("netbsd", "sendto", trans_cb, NULL));
intercept_register_translation("netbsd", "sendto", 4,
&ic_translate_connect);
/* 136: mkdir [fswrite] */
X(intercept_register_sccb("netbsd", "mkdir", trans_cb, NULL));
tl = intercept_register_translation("netbsd", "mkdir", 0,
&ic_translate_unlinkname);
alias = systrace_new_alias("netbsd", "mkdir", "netbsd", "fswrite");
systrace_alias_add_trans(alias, tl);
/* 137: rmdir [fswrite] */
X(intercept_register_sccb("netbsd", "rmdir", trans_cb, NULL));
tl = intercept_register_transfn("netbsd", "rmdir", 0);
alias = systrace_new_alias("netbsd", "rmdir", "netbsd", "fswrite");
systrace_alias_add_trans(alias, tl);
/* 181: setgid */
X(intercept_register_sccb("netbsd", "setgid", trans_cb, NULL));
intercept_register_translation("netbsd", "setgid", 0, &ic_gidt);
/* 182: setegid */
X(intercept_register_sccb("netbsd", "setegid", trans_cb, NULL));
intercept_register_translation("netbsd", "setegid", 0, &ic_gidt);
/* 183: seteuid */
X(intercept_register_sccb("netbsd", "seteuid", trans_cb, NULL));
intercept_register_translation("netbsd", "seteuid", 0, &ic_uidt);
intercept_register_translation("netbsd", "seteuid", 0, &ic_uname);
/* 270: __posix_rename */
X(intercept_register_sccb("netbsd", "__posix_rename", trans_cb, NULL));
intercept_register_translation("netbsd", "__posix_rename", 0,
&ic_translate_unlinkname);
intercept_register_transfn("netbsd", "__posix_rename", 1);
/* 278: compat_30___stat13 [fsread] */
X(intercept_register_sccb("netbsd", "compat_30___stat13", trans_cb, NULL));
tl = intercept_register_transfn("netbsd", "compat_30___stat13", 0);
alias = systrace_new_alias("netbsd", "compat_30___stat13", "netbsd", "fsread");
systrace_alias_add_trans(alias, tl);
/* 280: compat_30___lstat13 [fsread] */
X(intercept_register_sccb("netbsd", "compat_30___lstat13", trans_cb, NULL));
tl = intercept_register_translation("netbsd", "compat_30___lstat13", 0,
&ic_translate_unlinkname);
alias = systrace_new_alias("netbsd", "compat_30___lstat13", "netbsd", "fsread");
systrace_alias_add_trans(alias, tl);
/* 283: __posix_chown */
X(intercept_register_sccb("netbsd", "__posix_chown", trans_cb, NULL));
intercept_register_transfn("netbsd", "__posix_chown", 0);
intercept_register_translation("netbsd", "__posix_chown", 1, &ic_uidt);
intercept_register_translation("netbsd", "__posix_chown", 2, &ic_gidt);
/* 284: __posix_fchown */
X(intercept_register_sccb("netbsd", "__posix_fchown", trans_cb, NULL));
intercept_register_translation("netbsd", "__posix_fchown", 0, &ic_fdt);
intercept_register_translation("netbsd", "__posix_fchown", 1, &ic_uidt);
intercept_register_translation("netbsd", "__posix_fchown", 2, &ic_gidt);
/* 387: __stat30 [fsread] */
X(intercept_register_sccb("netbsd", "__stat30", trans_cb, NULL));
tl = intercept_register_transfn("netbsd", "__stat30", 0);
alias = systrace_new_alias("netbsd", "__stat30", "netbsd", "fsread");
systrace_alias_add_trans(alias, tl);
/* 389: __lstat30 [fsread] */
X(intercept_register_sccb("netbsd", "__lstat30", trans_cb, NULL));
tl = intercept_register_translation("netbsd", "__lstat30", 0,
&ic_translate_unlinkname);
alias = systrace_new_alias("netbsd", "__lstat30", "netbsd", "fsread");
systrace_alias_add_trans(alias, tl);
/* 394: __socket30 */
X(intercept_register_sccb("netbsd", "__socket30", trans_cb, NULL));
intercept_register_translation("netbsd", "__socket30", 0, &ic_sockdom);
intercept_register_translation("netbsd", "__socket30", 1, &ic_socktype);
#else
X(intercept_register_gencb(gen_cb, NULL));
/* open */
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);
/* link */
X(intercept_register_sccb("native", "link", trans_cb, NULL));
intercept_register_transfn("native", "link", 0);
intercept_register_transfn("native", "link", 1);
/* unlink [fswrite] */
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);
/* chdir */
X(intercept_register_sccb("native", "chdir", trans_cb, NULL));
intercept_register_transfn("native", "chdir", 0);
/* chmod */
X(intercept_register_sccb("native", "chmod", trans_cb, NULL));
intercept_register_transfn("native", "chmod", 0);
intercept_register_translation("native", "chmod", 1, &ic_modeflags);
/* chown */
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);
/* setuid */
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);
/* access [fsread] */
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);
/* kill */
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);
/* stat [fsread] */
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);
/* lstat [fsread] */
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);
/* symlink */
X(intercept_register_sccb("native", "symlink", trans_cb, NULL));
intercept_register_transstring("native", "symlink", 0);
intercept_register_translation("native", "symlink", 1,
&ic_translate_unlinkname);
/* readlink [fsread] */
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);
/* execve */
X(intercept_register_sccb("native", "execve", trans_cb, NULL));
intercept_register_transfn("native", "execve", 0);
intercept_register_translation("native", "execve", 1, &ic_trargv);
/* chroot */
X(intercept_register_sccb("native", "chroot", trans_cb, NULL));
intercept_register_transfn("native", "chroot", 0);
/* mmap */
X(intercept_register_sccb("native", "mmap", trans_cb, NULL));
intercept_register_translation("native", "mmap", 2, &ic_memprot);
/* mprotect */
X(intercept_register_sccb("native", "mprotect", trans_cb, NULL));
intercept_register_translation("native", "mprotect", 2, &ic_memprot);
/* fcntl */
X(intercept_register_sccb("native", "fcntl", trans_cb, NULL));
intercept_register_translation("native", "fcntl", 1, &ic_fcntlcmd);
/* socket */
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);
/* sendmsg */
X(intercept_register_sccb("native", "sendmsg", trans_cb, NULL));
intercept_register_translation("native", "sendmsg", 1,
&ic_translate_sendmsg);
/* connect */
X(intercept_register_sccb("native", "connect", trans_cb, NULL));
intercept_register_translation("native", "connect", 1,
&ic_translate_connect);
/* bind */
X(intercept_register_sccb("native", "bind", trans_cb, NULL));
intercept_register_translation("native", "bind", 1,
&ic_translate_connect);
/* fchown */
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);
/* fchmod */
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);
/* rename */
X(intercept_register_sccb("native", "rename", trans_cb, NULL));
intercept_register_translation("native", "rename", 0,
&ic_translate_unlinkname);
intercept_register_transfn("native", "rename", 1);
/* sendto */
X(intercept_register_sccb("native", "sendto", trans_cb, NULL));
intercept_register_translation("native", "sendto", 4,
&ic_translate_connect);
/* mkdir [fswrite] */
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);
/* rmdir [fswrite] */
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);
/* setgid */
X(intercept_register_sccb("native", "setgid", trans_cb, NULL));
intercept_register_translation("native", "setgid", 0, &ic_gidt);
/* setegid */
X(intercept_register_sccb("native", "setegid", trans_cb, NULL));
intercept_register_translation("native", "setegid", 0, &ic_gidt);
/* seteuid */
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);
#endif
#if !(defined(__NetBSD__) && !defined(HAVE_LINUX_FCNTL_H))
/* 5: open [fswrite] */
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);
/* 9: link */
X(intercept_register_sccb("linux", "link", trans_cb, NULL));
intercept_register_translink("linux", "link", 0);
intercept_register_translink("linux", "link", 1);
/* 10: unlink [fswrite] */
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);
/* 11: execve */
X(intercept_register_sccb("linux", "execve", trans_cb, NULL));
intercept_register_translink("linux", "execve", 0);
/* 15: chmod */
X(intercept_register_sccb("linux", "chmod", trans_cb, NULL));
intercept_register_translink("linux", "chmod", 0);
intercept_register_translation("linux", "chmod", 1, &ic_modeflags);
/* 33: access [fsread] */
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);
/* 38: rename */
X(intercept_register_sccb("linux", "rename", trans_cb, NULL));
intercept_register_translink("linux", "rename", 0);
intercept_register_translink("linux", "rename", 1);
/* 39: mkdir [fswrite] */
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);
/* 40: rmdir [fswrite] */
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);
/* 83: symlink */
X(intercept_register_sccb("linux", "symlink", trans_cb, NULL));
intercept_register_transstring("linux", "symlink", 0);
intercept_register_translink("linux", "symlink", 1);
/* 85: readlink [fsread] */
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);
/* 106: stat [fsread] */
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);
/* 107: lstat */
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);
#endif
X(intercept_register_execcb(execres_cb, NULL));
X(intercept_register_pfreecb(policyfree_cb, NULL));
}
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