ae02a6cbb8
* basic_actions.c (not_injected, apply_inject, parse_inject_common, parse_inject, apply_fault, parse_fault): New functions. * defs.h (struct inject_opts): Add init flag. (qual_flags): Remove declaration. * filter_action.c (action_types): Add inject and fault action types. (set_filter_action_priv_data): New function. * filter_qualify.c (inject_set): Remove variable. (parse_inject_expression): Remove function. (parse_inject_common_args): Add function for inject/fault arguments parsing. (qualify_inject_common): Use parse_inject_common_args instead of parse_inject_expression, use new filtering API. (qualify_fault, qualify_inject): Remove "argument" from description argument of qualify_inject_common. (qual_flags): Remove function. * filter.h (parse_inject_common_args, not_injected, set_filter_action_priv_data): New declarations. (DECL_FILTER_ACTION): Declare inject and fault actions. (DECL_FILTER_ACTION_PARSER): Declare inject and fault action parsers. * strace.c (trace_syscall): Call filter_syscall only when tcp->qual_flg is empty. * syscall.c (decode_socket_subcall): Remove qual_flags from decoder. (decode_ipc_subcall): Likewise. (decode_mips_subcall): Likewise. (get_scno): Likewise. (inject_vec, tamper_with_syscall_entering): Remove inject_vec support code.
119 lines
3.1 KiB
C
119 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2017 Nikolay Marchuk <marchuk.nikolay.a@gmail.com>
|
|
* 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. 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 "defs.h"
|
|
#include "filter.h"
|
|
|
|
bool
|
|
is_traced(struct tcb *tcp)
|
|
{
|
|
return traced(tcp);
|
|
}
|
|
|
|
bool
|
|
not_injected(struct tcb *tcp)
|
|
{
|
|
return !inject(tcp);
|
|
}
|
|
|
|
void *
|
|
parse_null(const char *str)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
apply_trace(struct tcb *tcp, void *priv_data)
|
|
{
|
|
tcp->qual_flg |= QUAL_TRACE;
|
|
}
|
|
|
|
void
|
|
apply_raw(struct tcb *tcp, void *priv_data)
|
|
{
|
|
tcp->qual_flg |= QUAL_RAW;
|
|
}
|
|
|
|
void
|
|
apply_abbrev(struct tcb *tcp, void *priv_data)
|
|
{
|
|
tcp->qual_flg |= QUAL_ABBREV;
|
|
}
|
|
|
|
void
|
|
apply_verbose(struct tcb *tcp, void *priv_data)
|
|
{
|
|
tcp->qual_flg |= QUAL_VERBOSE;
|
|
}
|
|
|
|
void
|
|
apply_inject(struct tcb *tcp, void *priv_data)
|
|
{
|
|
struct inject_opts *opts = priv_data;
|
|
|
|
tcp->qual_flg |= QUAL_INJECT;
|
|
if (!tcp->inject_vec[current_personality])
|
|
tcp->inject_vec[current_personality] =
|
|
xcalloc(nsyscalls, sizeof(struct inject_opts));
|
|
if (scno_in_range(tcp->scno)
|
|
&& !tcp->inject_vec[current_personality][tcp->scno].data.flags)
|
|
tcp->inject_vec[current_personality][tcp->scno] = *opts;
|
|
}
|
|
|
|
static void *
|
|
parse_inject_common(const char *str, bool fault_tokens_only,
|
|
const char *description)
|
|
{
|
|
struct inject_opts *opts = xmalloc(sizeof(struct inject_opts));
|
|
char *buf = xstrdup(str);
|
|
|
|
parse_inject_common_args(buf, opts, fault_tokens_only, false);
|
|
if (!opts->data.flags)
|
|
error_msg_and_die("invalid %s argument '%s'",
|
|
description, str ? str : "");
|
|
free(buf);
|
|
return opts;
|
|
}
|
|
|
|
void *
|
|
parse_inject(const char *str)
|
|
{
|
|
return parse_inject_common(str, false, "inject");
|
|
}
|
|
|
|
void
|
|
apply_fault(struct tcb *tcp, void *priv_data)
|
|
{
|
|
apply_inject(tcp, priv_data);
|
|
}
|
|
|
|
void *
|
|
parse_fault(const char *str)
|
|
{
|
|
return parse_inject_common(str, true, "fault");
|
|
}
|