1200 lines
26 KiB
C
1200 lines
26 KiB
C
/*
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* Copyright (c) 2004 Apple Computer, Inc.
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* Copyright (c) 2005 SPARTA, Inc.
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* All rights reserved.
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*
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* This code was developed in part by Robert N. M. Watson, Senior Principal
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* Scientist, SPARTA, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* $P4: //depot/projects/trustedbsd/audit3/sys/security/audit/audit_bsm_token.c#23 $
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* $FreeBSD$
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*/
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#include <sys/types.h>
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#include <sys/endian.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/time.h>
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#include <sys/ipc.h>
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#include <sys/libkern.h>
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#include <sys/malloc.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <netinet/ip.h>
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#include <sys/socketvar.h>
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#include <bsm/audit.h>
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#include <bsm/audit_internal.h>
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#include <bsm/audit_record.h>
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#include <security/audit/audit.h>
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#include <security/audit/audit_private.h>
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#define GET_TOKEN_AREA(t, dptr, length) do { \
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t = malloc(sizeof(token_t), M_AUDITBSM, M_WAITOK); \
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t->t_data = malloc(length, M_AUDITBSM, M_WAITOK | M_ZERO); \
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t->len = length; \
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dptr = t->t_data; \
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} while (0)
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/*
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* token ID 1 byte
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* argument # 1 byte
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* argument value 4 bytes/8 bytes (32-bit/64-bit value)
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* text length 2 bytes
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* text N bytes + 1 terminating NULL byte
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*/
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token_t *
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au_to_arg32(char n, char *text, u_int32_t v)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t textlen;
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textlen = strlen(text);
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textlen += 1;
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GET_TOKEN_AREA(t, dptr, 2 * sizeof(u_char) + sizeof(u_int32_t) +
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sizeof(u_int16_t) + textlen);
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ADD_U_CHAR(dptr, AUT_ARG32);
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ADD_U_CHAR(dptr, n);
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ADD_U_INT32(dptr, v);
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ADD_U_INT16(dptr, textlen);
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ADD_STRING(dptr, text, textlen);
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return (t);
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}
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token_t *
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au_to_arg64(char n, char *text, u_int64_t v)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t textlen;
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textlen = strlen(text);
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textlen += 1;
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GET_TOKEN_AREA(t, dptr, 2 * sizeof(u_char) + sizeof(u_int64_t) +
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sizeof(u_int16_t) + textlen);
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ADD_U_CHAR(dptr, AUT_ARG64);
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ADD_U_CHAR(dptr, n);
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ADD_U_INT64(dptr, v);
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ADD_U_INT16(dptr, textlen);
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ADD_STRING(dptr, text, textlen);
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return (t);
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}
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token_t *
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au_to_arg(char n, char *text, u_int32_t v)
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{
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return (au_to_arg32(n, text, v));
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}
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#if defined(_KERNEL) || defined(KERNEL)
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/*
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* token ID 1 byte
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* file access mode 4 bytes
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* owner user ID 4 bytes
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* owner group ID 4 bytes
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* file system ID 4 bytes
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* node ID 8 bytes
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* device 4 bytes/8 bytes (32-bit/64-bit)
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*/
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token_t *
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au_to_attr32(struct vnode_au_info *vni)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t pad0_16 = 0;
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u_int16_t pad0_32 = 0;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 2 * sizeof(u_int16_t) +
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3 * sizeof(u_int32_t) + sizeof(u_int64_t) + sizeof(u_int32_t));
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ADD_U_CHAR(dptr, AUT_ATTR32);
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/*
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* Darwin defines the size for the file mode
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* as 2 bytes; BSM defines 4 so pad with 0
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*/
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ADD_U_INT16(dptr, pad0_16);
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ADD_U_INT16(dptr, vni->vn_mode);
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ADD_U_INT32(dptr, vni->vn_uid);
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ADD_U_INT32(dptr, vni->vn_gid);
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ADD_U_INT32(dptr, vni->vn_fsid);
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/*
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* Some systems use 32-bit file ID's, other's use 64-bit file IDs.
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* Attempt to handle both, and let the compiler sort it out. If we
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* could pick this out at compile-time, it would be better, so as to
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* avoid the else case below.
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*/
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if (sizeof(vni->vn_fileid) == sizeof(uint32_t)) {
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ADD_U_INT32(dptr, pad0_32);
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ADD_U_INT32(dptr, vni->vn_fileid);
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} else if (sizeof(vni->vn_fileid) == sizeof(uint64_t))
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ADD_U_INT64(dptr, vni->vn_fileid);
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else
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ADD_U_INT64(dptr, 0LL);
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ADD_U_INT32(dptr, vni->vn_dev);
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return (t);
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}
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token_t *
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au_to_attr64(struct vnode_au_info *vni)
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{
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return (NULL);
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}
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token_t *
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au_to_attr(struct vnode_au_info *vni)
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{
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return (au_to_attr32(vni));
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}
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#endif /* !(defined(_KERNEL) || defined(KERNEL) */
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/*
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* token ID 1 byte
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* how to print 1 byte
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* basic unit 1 byte
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* unit count 1 byte
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* data items (depends on basic unit)
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*/
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token_t *
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au_to_data(char unit_print, char unit_type, char unit_count, char *p)
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{
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token_t *t;
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u_char *dptr = NULL;
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size_t datasize, totdata;
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/* Determine the size of the basic unit. */
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switch (unit_type) {
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case AUR_BYTE:
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/* case AUR_CHAR: */
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datasize = AUR_BYTE_SIZE;
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break;
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case AUR_SHORT:
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datasize = AUR_SHORT_SIZE;
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break;
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case AUR_INT32:
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/* case AUR_INT: */
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datasize = AUR_INT32_SIZE;
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break;
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case AUR_INT64:
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datasize = AUR_INT64_SIZE;
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break;
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default:
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return (NULL);
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}
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totdata = datasize * unit_count;
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GET_TOKEN_AREA(t, dptr, 4 * sizeof(u_char) + totdata);
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ADD_U_CHAR(dptr, AUT_DATA);
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ADD_U_CHAR(dptr, unit_print);
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ADD_U_CHAR(dptr, unit_type);
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ADD_U_CHAR(dptr, unit_count);
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ADD_MEM(dptr, p, totdata);
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return (t);
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}
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/*
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* token ID 1 byte
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* status 4 bytes
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* return value 4 bytes
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*/
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token_t *
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au_to_exit(int retval, int err)
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{
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token_t *t;
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u_char *dptr = NULL;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 2 * sizeof(u_int32_t));
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ADD_U_CHAR(dptr, AUT_EXIT);
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ADD_U_INT32(dptr, err);
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ADD_U_INT32(dptr, retval);
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return (t);
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}
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/*
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*/
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token_t *
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au_to_groups(int *groups)
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{
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return (au_to_newgroups(AUDIT_MAX_GROUPS, groups));
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}
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/*
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* token ID 1 byte
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* number groups 2 bytes
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* group list count * 4 bytes
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*/
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token_t *
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au_to_newgroups(u_int16_t n, gid_t *groups)
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{
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token_t *t;
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u_char *dptr = NULL;
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int i;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int16_t) +
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n * sizeof(u_int32_t));
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ADD_U_CHAR(dptr, AUT_NEWGROUPS);
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ADD_U_INT16(dptr, n);
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for (i = 0; i < n; i++)
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ADD_U_INT32(dptr, groups[i]);
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return (t);
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}
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/*
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* token ID 1 byte
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* internet address 4 bytes
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*/
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token_t *
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au_to_in_addr(struct in_addr *internet_addr)
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{
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token_t *t;
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u_char *dptr = NULL;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(uint32_t));
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ADD_U_CHAR(dptr, AUT_IN_ADDR);
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ADD_MEM(dptr, &internet_addr->s_addr, sizeof(uint32_t));
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return (t);
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}
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/*
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* token ID 1 byte
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* address type/length 4 bytes
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* Address 16 bytes
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*/
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token_t *
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au_to_in_addr_ex(struct in6_addr *internet_addr)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int32_t type = AF_INET6;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 5 * sizeof(uint32_t));
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ADD_U_CHAR(dptr, AUT_IN_ADDR_EX);
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ADD_U_INT32(dptr, type);
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ADD_MEM(dptr, internet_addr, 5 * sizeof(uint32_t));
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return (t);
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}
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/*
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* token ID 1 byte
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* ip header 20 bytes
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*/
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token_t *
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au_to_ip(struct ip *ip)
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{
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token_t *t;
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u_char *dptr = NULL;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(struct ip));
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ADD_U_CHAR(dptr, AUT_IP);
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/*
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* XXXRW: Any byte order work needed on the IP header before writing?
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*/
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ADD_MEM(dptr, ip, sizeof(struct ip));
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return (t);
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}
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/*
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* token ID 1 byte
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* object ID type 1 byte
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* object ID 4 bytes
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*/
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token_t *
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au_to_ipc(char type, int id)
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{
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token_t *t;
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u_char *dptr = NULL;
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GET_TOKEN_AREA(t, dptr, 2 * sizeof(u_char) + sizeof(u_int32_t));
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ADD_U_CHAR(dptr, AUT_IPC);
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ADD_U_CHAR(dptr, type);
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ADD_U_INT32(dptr, id);
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return (t);
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}
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/*
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* token ID 1 byte
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* owner user ID 4 bytes
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* owner group ID 4 bytes
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* creator user ID 4 bytes
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* creator group ID 4 bytes
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* access mode 4 bytes
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* slot sequence # 4 bytes
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* key 4 bytes
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*/
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token_t *
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au_to_ipc_perm(struct ipc_perm *perm)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t pad0 = 0;
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GET_TOKEN_AREA(t, dptr, 12 * sizeof(u_int16_t) + sizeof(u_int32_t));
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ADD_U_CHAR(dptr, AUT_IPC_PERM);
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/*
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* Darwin defines the sizes for ipc_perm members
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* as 2 bytes; BSM defines 4 so pad with 0
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*/
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ADD_U_INT16(dptr, pad0);
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ADD_U_INT16(dptr, perm->uid);
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ADD_U_INT16(dptr, pad0);
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ADD_U_INT16(dptr, perm->gid);
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ADD_U_INT16(dptr, pad0);
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ADD_U_INT16(dptr, perm->cuid);
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ADD_U_INT16(dptr, pad0);
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ADD_U_INT16(dptr, perm->cgid);
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ADD_U_INT16(dptr, pad0);
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ADD_U_INT16(dptr, perm->mode);
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ADD_U_INT16(dptr, pad0);
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ADD_U_INT16(dptr, perm->seq);
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ADD_U_INT32(dptr, perm->key);
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return (t);
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}
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/*
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* token ID 1 byte
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* port IP address 2 bytes
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*/
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token_t *
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au_to_iport(u_int16_t iport)
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{
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token_t *t;
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u_char *dptr = NULL;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int16_t));
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ADD_U_CHAR(dptr, AUT_IPORT);
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ADD_U_INT16(dptr, iport);
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return (t);
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}
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/*
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* token ID 1 byte
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* size 2 bytes
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* data size bytes
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*/
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token_t *
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au_to_opaque(char *data, u_int16_t bytes)
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{
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token_t *t;
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u_char *dptr = NULL;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int16_t) + bytes);
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ADD_U_CHAR(dptr, AUT_OPAQUE);
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ADD_U_INT16(dptr, bytes);
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ADD_MEM(dptr, data, bytes);
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return (t);
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}
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/*
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* token ID 1 byte
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* seconds of time 4 bytes
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* milliseconds of time 4 bytes
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* file name len 2 bytes
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* file pathname N bytes + 1 terminating NULL byte
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*/
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token_t *
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au_to_file(char *file, struct timeval tm)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t filelen;
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u_int32_t timems;
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filelen = strlen(file);
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filelen += 1;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 2 * sizeof(u_int32_t) +
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sizeof(u_int16_t) + filelen);
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timems = tm.tv_usec/1000;
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ADD_U_CHAR(dptr, AUT_OTHER_FILE32);
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ADD_U_INT32(dptr, tm.tv_sec);
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ADD_U_INT32(dptr, timems); /* We need time in ms. */
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ADD_U_INT16(dptr, filelen);
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ADD_STRING(dptr, file, filelen);
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return (t);
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}
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/*
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* token ID 1 byte
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* text length 2 bytes
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* text N bytes + 1 terminating NULL byte
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*/
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token_t *
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au_to_text(char *text)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t textlen;
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textlen = strlen(text);
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textlen += 1;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int16_t) + textlen);
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ADD_U_CHAR(dptr, AUT_TEXT);
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ADD_U_INT16(dptr, textlen);
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ADD_STRING(dptr, text, textlen);
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return (t);
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}
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/*
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* token ID 1 byte
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* path length 2 bytes
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* path N bytes + 1 terminating NULL byte
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*/
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token_t *
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au_to_path(char *text)
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{
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token_t *t;
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u_char *dptr = NULL;
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u_int16_t textlen;
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textlen = strlen(text);
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textlen += 1;
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GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int16_t) + textlen);
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ADD_U_CHAR(dptr, AUT_PATH);
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ADD_U_INT16(dptr, textlen);
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ADD_STRING(dptr, text, textlen);
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return (t);
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}
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/*
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* token ID 1 byte
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* audit ID 4 bytes
|
|
* effective user ID 4 bytes
|
|
* effective group ID 4 bytes
|
|
* real user ID 4 bytes
|
|
* real group ID 4 bytes
|
|
* process ID 4 bytes
|
|
* session ID 4 bytes
|
|
* terminal ID
|
|
* port ID 4 bytes/8 bytes (32-bit/64-bit value)
|
|
* machine address 4 bytes
|
|
*/
|
|
token_t *
|
|
au_to_process32(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid, gid_t rgid,
|
|
pid_t pid, au_asid_t sid, au_tid_t *tid)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 9 * sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_PROCESS32);
|
|
ADD_U_INT32(dptr, auid);
|
|
ADD_U_INT32(dptr, euid);
|
|
ADD_U_INT32(dptr, egid);
|
|
ADD_U_INT32(dptr, ruid);
|
|
ADD_U_INT32(dptr, rgid);
|
|
ADD_U_INT32(dptr, pid);
|
|
ADD_U_INT32(dptr, sid);
|
|
ADD_U_INT32(dptr, tid->port);
|
|
ADD_MEM(dptr, &tid->machine, sizeof(u_int32_t));
|
|
|
|
return (t);
|
|
}
|
|
|
|
token_t *
|
|
au_to_process64(__unused au_id_t auid, __unused uid_t euid,
|
|
__unused gid_t egid, __unused uid_t ruid, __unused gid_t rgid,
|
|
__unused pid_t pid, __unused au_asid_t sid, __unused au_tid_t *tid)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
token_t *
|
|
au_to_process(__unused au_id_t auid, __unused uid_t euid,
|
|
__unused gid_t egid, __unused uid_t ruid, __unused gid_t rgid,
|
|
__unused pid_t pid, __unused au_asid_t sid, __unused au_tid_t *tid)
|
|
{
|
|
|
|
return (au_to_process32(auid, euid, egid, ruid, rgid, pid, sid,
|
|
tid));
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* audit ID 4 bytes
|
|
* effective user ID 4 bytes
|
|
* effective group ID 4 bytes
|
|
* real user ID 4 bytes
|
|
* real group ID 4 bytes
|
|
* process ID 4 bytes
|
|
* session ID 4 bytes
|
|
* terminal ID
|
|
* port ID 4 bytes/8 bytes (32-bit/64-bit value)
|
|
* address type-len 4 bytes
|
|
* machine address 4/16 bytes
|
|
*/
|
|
token_t *
|
|
au_to_process32_ex(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid,
|
|
gid_t rgid, pid_t pid, au_asid_t sid, au_tid_addr_t *tid)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
if (tid->at_type == AU_IPv6)
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 13 *
|
|
sizeof(u_int32_t));
|
|
else
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 10 *
|
|
sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_PROCESS32_EX);
|
|
ADD_U_INT32(dptr, auid);
|
|
ADD_U_INT32(dptr, euid);
|
|
ADD_U_INT32(dptr, egid);
|
|
ADD_U_INT32(dptr, ruid);
|
|
ADD_U_INT32(dptr, rgid);
|
|
ADD_U_INT32(dptr, pid);
|
|
ADD_U_INT32(dptr, sid);
|
|
ADD_U_INT32(dptr, tid->at_port);
|
|
ADD_U_INT32(dptr, tid->at_type);
|
|
ADD_U_INT32(dptr, tid->at_addr[0]);
|
|
if (tid->at_type == AU_IPv6) {
|
|
ADD_U_INT32(dptr, tid->at_addr[1]);
|
|
ADD_U_INT32(dptr, tid->at_addr[2]);
|
|
ADD_U_INT32(dptr, tid->at_addr[3]);
|
|
}
|
|
return (t);
|
|
}
|
|
|
|
token_t *
|
|
au_to_process64_ex(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid,
|
|
gid_t rgid, pid_t pid, au_asid_t sid, au_tid_addr_t *tid)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
token_t *
|
|
au_to_process_ex(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid,
|
|
gid_t rgid, pid_t pid, au_asid_t sid, au_tid_addr_t *tid)
|
|
{
|
|
|
|
return (au_to_process32_ex(auid, euid, egid, ruid, rgid, pid, sid,
|
|
tid));
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* error status 1 byte
|
|
* return value 4 bytes/8 bytes (32-bit/64-bit value)
|
|
*/
|
|
token_t *
|
|
au_to_return32(char status, u_int32_t ret)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
GET_TOKEN_AREA(t, dptr, 2 * sizeof(u_char) + sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_RETURN32);
|
|
ADD_U_CHAR(dptr, status);
|
|
ADD_U_INT32(dptr, ret);
|
|
|
|
return (t);
|
|
}
|
|
|
|
token_t *
|
|
au_to_return64(char status, u_int64_t ret)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
GET_TOKEN_AREA(t, dptr, 2 * sizeof(u_char) + sizeof(u_int64_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_RETURN64);
|
|
ADD_U_CHAR(dptr, status);
|
|
ADD_U_INT64(dptr, ret);
|
|
|
|
return (t);
|
|
}
|
|
|
|
token_t *
|
|
au_to_return(char status, u_int32_t ret)
|
|
{
|
|
|
|
return (au_to_return32(status, ret));
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* sequence number 4 bytes
|
|
*/
|
|
token_t *
|
|
au_to_seq(long audit_count)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_SEQ);
|
|
ADD_U_INT32(dptr, audit_count);
|
|
|
|
return (t);
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* socket type 2 bytes
|
|
* local port 2 bytes
|
|
* local Internet address 4 bytes
|
|
* remote port 2 bytes
|
|
* remote Internet address 4 bytes
|
|
*/
|
|
token_t *
|
|
au_to_socket(struct socket *so)
|
|
{
|
|
|
|
/* XXXRW ... */
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Kernel-specific version of the above function.
|
|
*/
|
|
#ifdef _KERNEL
|
|
token_t *
|
|
kau_to_socket(struct socket_au_info *soi)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr;
|
|
u_int16_t so_type;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 2 * sizeof(u_int16_t) +
|
|
sizeof(u_int32_t) + sizeof(u_int16_t) + sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AU_SOCK_TOKEN);
|
|
/* Coerce the socket type into a short value */
|
|
so_type = soi->so_type;
|
|
ADD_U_INT16(dptr, so_type);
|
|
ADD_U_INT16(dptr, soi->so_lport);
|
|
ADD_U_INT32(dptr, soi->so_laddr);
|
|
ADD_U_INT16(dptr, soi->so_rport);
|
|
ADD_U_INT32(dptr, soi->so_raddr);
|
|
|
|
return (t);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* socket type 2 bytes
|
|
* local port 2 bytes
|
|
* address type/length 4 bytes
|
|
* local Internet address 4 bytes/16 bytes (IPv4/IPv6 address)
|
|
* remote port 4 bytes
|
|
* address type/length 4 bytes
|
|
* remote Internet address 4 bytes/16 bytes (IPv4/IPv6 address)
|
|
*/
|
|
token_t *
|
|
au_to_socket_ex_32(u_int16_t lp, u_int16_t rp, struct sockaddr *la,
|
|
struct sockaddr *ra)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
token_t *
|
|
au_to_socket_ex_128(u_int16_t lp, u_int16_t rp, struct sockaddr *la,
|
|
struct sockaddr *ra)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* socket family 2 bytes
|
|
* path 104 bytes
|
|
*/
|
|
token_t *
|
|
au_to_sock_unix(struct sockaddr_un *so)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr;
|
|
|
|
GET_TOKEN_AREA(t, dptr, 3 * sizeof(u_char) + strlen(so->sun_path) + 1);
|
|
|
|
ADD_U_CHAR(dptr, AU_SOCK_UNIX_TOKEN);
|
|
/* BSM token has two bytes for family */
|
|
ADD_U_CHAR(dptr, 0);
|
|
ADD_U_CHAR(dptr, so->sun_family);
|
|
ADD_STRING(dptr, so->sun_path, strlen(so->sun_path) + 1);
|
|
|
|
return (t);
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* socket family 2 bytes
|
|
* local port 2 bytes
|
|
* socket address 4 bytes
|
|
*/
|
|
token_t *
|
|
au_to_sock_inet32(struct sockaddr_in *so)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
uint16_t family;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 2 * sizeof(uint16_t) +
|
|
sizeof(uint32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_SOCKINET32);
|
|
/*
|
|
* BSM defines the family field as 16 bits, but many operating
|
|
* systems have an 8-bit sin_family field. Extend to 16 bits before
|
|
* writing into the token. Assume that both the port and the address
|
|
* in the sockaddr_in are already in network byte order, but family
|
|
* is in local byte order.
|
|
*
|
|
* XXXRW: Should a name space conversion be taking place on the value
|
|
* of sin_family?
|
|
*/
|
|
family = so->sin_family;
|
|
ADD_U_INT16(dptr, family);
|
|
ADD_MEM(dptr, &so->sin_port, sizeof(uint16_t));
|
|
ADD_MEM(dptr, &so->sin_addr.s_addr, sizeof(uint32_t));
|
|
|
|
return (t);
|
|
|
|
}
|
|
|
|
token_t *
|
|
au_to_sock_inet128(struct sockaddr_in6 *so)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
GET_TOKEN_AREA(t, dptr, 3 * sizeof(u_char) + sizeof(u_int16_t) +
|
|
4 * sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_SOCKINET128);
|
|
/*
|
|
* In Darwin, sin6_family is one octet, but BSM defines the token
|
|
* to store two. So we copy in a 0 first.
|
|
*/
|
|
ADD_U_CHAR(dptr, 0);
|
|
ADD_U_CHAR(dptr, so->sin6_family);
|
|
|
|
ADD_U_INT16(dptr, so->sin6_port);
|
|
ADD_MEM(dptr, &so->sin6_addr, 4 * sizeof(uint32_t));
|
|
|
|
return (t);
|
|
|
|
}
|
|
|
|
token_t *
|
|
au_to_sock_inet(struct sockaddr_in *so)
|
|
{
|
|
|
|
return (au_to_sock_inet32(so));
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* audit ID 4 bytes
|
|
* effective user ID 4 bytes
|
|
* effective group ID 4 bytes
|
|
* real user ID 4 bytes
|
|
* real group ID 4 bytes
|
|
* process ID 4 bytes
|
|
* session ID 4 bytes
|
|
* terminal ID
|
|
* port ID 4 bytes/8 bytes (32-bit/64-bit value)
|
|
* machine address 4 bytes
|
|
*/
|
|
token_t *
|
|
au_to_subject32(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid, gid_t rgid,
|
|
pid_t pid, au_asid_t sid, au_tid_t *tid)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 9 * sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_SUBJECT32);
|
|
ADD_U_INT32(dptr, auid);
|
|
ADD_U_INT32(dptr, euid);
|
|
ADD_U_INT32(dptr, egid);
|
|
ADD_U_INT32(dptr, ruid);
|
|
ADD_U_INT32(dptr, rgid);
|
|
ADD_U_INT32(dptr, pid);
|
|
ADD_U_INT32(dptr, sid);
|
|
ADD_U_INT32(dptr, tid->port);
|
|
ADD_MEM(dptr, &tid->machine, sizeof(u_int32_t));
|
|
|
|
return (t);
|
|
}
|
|
|
|
token_t *
|
|
au_to_subject64(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid, gid_t rgid,
|
|
pid_t pid, au_asid_t sid, au_tid_t *tid)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
token_t *
|
|
au_to_subject(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid, gid_t rgid,
|
|
pid_t pid, au_asid_t sid, au_tid_t *tid)
|
|
{
|
|
|
|
return (au_to_subject32(auid, euid, egid, ruid, rgid, pid, sid,
|
|
tid));
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* audit ID 4 bytes
|
|
* effective user ID 4 bytes
|
|
* effective group ID 4 bytes
|
|
* real user ID 4 bytes
|
|
* real group ID 4 bytes
|
|
* process ID 4 bytes
|
|
* session ID 4 bytes
|
|
* terminal ID
|
|
* port ID 4 bytes/8 bytes (32-bit/64-bit value)
|
|
* address type/length 4 bytes
|
|
* machine address 4/16 bytes
|
|
*/
|
|
token_t *
|
|
au_to_subject32_ex(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid,
|
|
gid_t rgid, pid_t pid, au_asid_t sid, au_tid_addr_t *tid)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
|
|
if (tid->at_type == AU_IPv6)
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 13 *
|
|
sizeof(u_int32_t));
|
|
else
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + 10 *
|
|
sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_SUBJECT32_EX);
|
|
ADD_U_INT32(dptr, auid);
|
|
ADD_U_INT32(dptr, euid);
|
|
ADD_U_INT32(dptr, egid);
|
|
ADD_U_INT32(dptr, ruid);
|
|
ADD_U_INT32(dptr, rgid);
|
|
ADD_U_INT32(dptr, pid);
|
|
ADD_U_INT32(dptr, sid);
|
|
ADD_U_INT32(dptr, tid->at_port);
|
|
ADD_U_INT32(dptr, tid->at_type);
|
|
ADD_U_INT32(dptr, tid->at_addr[0]);
|
|
if (tid->at_type == AU_IPv6) {
|
|
ADD_U_INT32(dptr, tid->at_addr[1]);
|
|
ADD_U_INT32(dptr, tid->at_addr[2]);
|
|
ADD_U_INT32(dptr, tid->at_addr[3]);
|
|
}
|
|
return (t);
|
|
}
|
|
|
|
token_t *
|
|
au_to_subject64_ex(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid,
|
|
gid_t rgid, pid_t pid, au_asid_t sid, au_tid_addr_t *tid)
|
|
{
|
|
|
|
return (NULL);
|
|
}
|
|
|
|
token_t *
|
|
au_to_subject_ex(au_id_t auid, uid_t euid, gid_t egid, uid_t ruid,
|
|
gid_t rgid, pid_t pid, au_asid_t sid, au_tid_addr_t *tid)
|
|
{
|
|
|
|
return (au_to_subject32_ex(auid, euid, egid, ruid, rgid, pid, sid,
|
|
tid));
|
|
}
|
|
|
|
#if !defined(_KERNEL) && !defined(KERNEL) && defined(HAVE_AUDIT_SYSCALLS)
|
|
/*
|
|
* Collects audit information for the current process
|
|
* and creates a subject token from it
|
|
*/
|
|
token_t *
|
|
au_to_me(void)
|
|
{
|
|
auditinfo_t auinfo;
|
|
|
|
if (getaudit(&auinfo) != 0)
|
|
return (NULL);
|
|
|
|
return (au_to_subject32(auinfo.ai_auid, geteuid(), getegid(),
|
|
getuid(), getgid(), getpid(), auinfo.ai_asid, &auinfo.ai_termid));
|
|
}
|
|
#endif
|
|
|
|
#if defined(_KERNEL) || defined(KERNEL)
|
|
static token_t *
|
|
au_to_exec_strings(char *strs, int count, u_char type)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
u_int32_t totlen;
|
|
int ctr;
|
|
char *p;
|
|
|
|
totlen = 0;
|
|
ctr = count;
|
|
p = strs;
|
|
while (ctr-- > 0) {
|
|
totlen += strlen(p) + 1;
|
|
p = strs + totlen;
|
|
}
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int32_t) + totlen);
|
|
ADD_U_CHAR(dptr, type);
|
|
ADD_U_INT32(dptr, count);
|
|
ADD_STRING(dptr, strs, totlen);
|
|
|
|
return (t);
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* count 4 bytes
|
|
* text count null-terminated strings
|
|
*/
|
|
token_t *
|
|
au_to_exec_args(char *args, int argc)
|
|
{
|
|
|
|
return (au_to_exec_strings(args, argc, AUT_EXEC_ARGS));
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* count 4 bytes
|
|
* text count null-terminated strings
|
|
*/
|
|
token_t *
|
|
au_to_exec_env(char *envs, int envc)
|
|
{
|
|
|
|
return (au_to_exec_strings(envs, envc, AUT_EXEC_ENV));
|
|
}
|
|
#else
|
|
/*
|
|
* token ID 1 byte
|
|
* count 4 bytes
|
|
* text count null-terminated strings
|
|
*/
|
|
token_t *
|
|
au_to_exec_args(char **argv)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
const char *nextarg;
|
|
int i, count = 0;
|
|
size_t totlen = 0;
|
|
|
|
nextarg = *argv;
|
|
|
|
while (nextarg != NULL) {
|
|
int nextlen;
|
|
|
|
nextlen = strlen(nextarg);
|
|
totlen += nextlen + 1;
|
|
count++;
|
|
nextarg = *(argv + count);
|
|
}
|
|
|
|
totlen += count * sizeof(char); /* nul terminations. */
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int32_t) + totlen);
|
|
|
|
ADD_U_CHAR(dptr, AUT_EXEC_ARGS);
|
|
ADD_U_INT32(dptr, count);
|
|
|
|
for (i = 0; i < count; i++) {
|
|
nextarg = *(argv + i);
|
|
ADD_MEM(dptr, nextarg, strlen(nextarg) + 1);
|
|
}
|
|
|
|
return (t);
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* count 4 bytes
|
|
* text count null-terminated strings
|
|
*/
|
|
token_t *
|
|
au_to_exec_env(char **envp)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
int i, count = 0;
|
|
size_t totlen = 0;
|
|
const char *nextenv;
|
|
|
|
nextenv = *envp;
|
|
|
|
while (nextenv != NULL) {
|
|
int nextlen;
|
|
|
|
nextlen = strlen(nextenv);
|
|
totlen += nextlen + 1;
|
|
count++;
|
|
nextenv = *(envp + count);
|
|
}
|
|
|
|
totlen += sizeof(char) * count;
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int32_t) + totlen);
|
|
|
|
ADD_U_CHAR(dptr, AUT_EXEC_ENV);
|
|
ADD_U_INT32(dptr, count);
|
|
|
|
for (i = 0; i < count; i++) {
|
|
nextenv = *(envp + i);
|
|
ADD_MEM(dptr, nextenv, strlen(nextenv) + 1);
|
|
}
|
|
|
|
return (t);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* record byte count 4 bytes
|
|
* version # 1 byte [2]
|
|
* event type 2 bytes
|
|
* event modifier 2 bytes
|
|
* seconds of time 4 bytes/8 bytes (32-bit/64-bit value)
|
|
* milliseconds of time 4 bytes/8 bytes (32-bit/64-bit value)
|
|
*/
|
|
token_t *
|
|
au_to_header32_tm(int rec_size, au_event_t e_type, au_emod_t e_mod,
|
|
struct timeval tm)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
u_int32_t timems;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int32_t) +
|
|
sizeof(u_char) + 2 * sizeof(u_int16_t) + 2 * sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_HEADER32);
|
|
ADD_U_INT32(dptr, rec_size);
|
|
ADD_U_CHAR(dptr, AUDIT_HEADER_VERSION_OPENBSM);
|
|
ADD_U_INT16(dptr, e_type);
|
|
ADD_U_INT16(dptr, e_mod);
|
|
|
|
timems = tm.tv_usec/1000;
|
|
/* Add the timestamp */
|
|
ADD_U_INT32(dptr, tm.tv_sec);
|
|
ADD_U_INT32(dptr, timems); /* We need time in ms. */
|
|
|
|
return (t);
|
|
}
|
|
|
|
/*
|
|
* token ID 1 byte
|
|
* trailer magic number 2 bytes
|
|
* record byte count 4 bytes
|
|
*/
|
|
token_t *
|
|
au_to_trailer(int rec_size)
|
|
{
|
|
token_t *t;
|
|
u_char *dptr = NULL;
|
|
u_int16_t magic = TRAILER_PAD_MAGIC;
|
|
|
|
GET_TOKEN_AREA(t, dptr, sizeof(u_char) + sizeof(u_int16_t) +
|
|
sizeof(u_int32_t));
|
|
|
|
ADD_U_CHAR(dptr, AUT_TRAILER);
|
|
ADD_U_INT16(dptr, magic);
|
|
ADD_U_INT32(dptr, rec_size);
|
|
|
|
return (t);
|
|
}
|