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116 lines
3.6 KiB
116 lines
3.6 KiB
/*
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* Load, verify and execute ClamAV bytecode.
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*
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* Copyright (C) 2009 Sourcefire, Inc.
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*
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* Authors: Török Edvin
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*/
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#ifndef BYTECODE_H
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#define BYTECODE_H
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#include <stdint.h>
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#include "clambc.h"
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#include <stdio.h>
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struct cli_dbio;
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struct cli_bc_ctx;
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struct cli_bc_func;
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struct cli_bc_value;
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struct cli_bc_inst;
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struct cli_bc_type;
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struct cli_bc_engine;
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struct cli_bc_dbgnode;
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struct bitset_tag;
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struct cl_engine;
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enum bc_state {
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bc_skip,
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bc_loaded,
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bc_jit,
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bc_interp
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};
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struct cli_bc {
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unsigned verifier;
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char *sigmaker;
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unsigned id;
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unsigned kind;
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struct bytecode_metadata metadata;
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unsigned num_types;
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unsigned num_func;
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struct cli_bc_func *funcs;
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struct cli_bc_type *types;
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uint64_t **globals;
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uint16_t *globaltys;
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size_t num_globals;
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enum bc_state state;
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uint16_t start_tid;
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struct bitset_tag *uses_apis;
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char *lsig;
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char *vnameprefix;
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char **vnames;
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unsigned vnames_cnt;
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struct cli_bc_dbgnode *dbgnodes;
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unsigned dbgnode_cnt;
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};
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struct cli_all_bc {
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struct cli_bc *all_bcs;
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unsigned count;
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struct cli_bcengine *engine;
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};
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struct cli_pe_hook_data;
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struct cli_bc_ctx *cli_bytecode_context_alloc(void);
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/* FIXME: we can't include others.h because others.h includes us...*/
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void cli_bytecode_context_setctx(struct cli_bc_ctx *ctx, void *cctx);
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int cli_bytecode_context_setfuncid(struct cli_bc_ctx *ctx, const struct cli_bc *bc, unsigned funcid);
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int cli_bytecode_context_setparam_int(struct cli_bc_ctx *ctx, unsigned i, uint64_t c);
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int cli_bytecode_context_setparam_ptr(struct cli_bc_ctx *ctx, unsigned i, void *data, unsigned datalen);
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int cli_bytecode_context_setfile(struct cli_bc_ctx *ctx, int fd);
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int cli_bytecode_context_setpe(struct cli_bc_ctx *ctx, const struct cli_pe_hook_data *data);
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int cli_bytecode_context_clear(struct cli_bc_ctx *ctx);
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/* returns file descriptor, sets tempfile. Caller takes ownership, and is
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* responsible for freeing/unlinking */
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int cli_bytecode_context_getresult_file(struct cli_bc_ctx *ctx, char **tempfilename);
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uint64_t cli_bytecode_context_getresult_int(struct cli_bc_ctx *ctx);
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void cli_bytecode_context_destroy(struct cli_bc_ctx *ctx);
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extern int have_clamjit;
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int cli_bytecode_init(struct cli_all_bc *allbc);
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int cli_bytecode_load(struct cli_bc *bc, FILE *f, struct cli_dbio *dbio);
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int cli_bytecode_prepare(struct cli_all_bc *allbc);
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int cli_bytecode_run(const struct cli_all_bc *bcs, const struct cli_bc *bc, struct cli_bc_ctx *ctx);
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void cli_bytecode_destroy(struct cli_bc *bc);
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int cli_bytecode_done(struct cli_all_bc *allbc);
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/* Hooks */
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struct cli_exe_info;
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int cli_bytecode_runlsig(const struct cli_all_bc *bcs, const struct cli_bc* bc, const char **virname, const uint32_t* lsigcnt, int fd);
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int cli_bytecode_runhook(const struct cl_engine *engine, struct cli_bc_ctx *ctx, unsigned id, int fd, const char **virname);
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#ifdef __cplusplus
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extern "C" {
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#endif
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void cli_bytecode_debug(int argc, char **argv);
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int bytecode_init(void);
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#ifdef __cplusplus
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}
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#endif
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#endif
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