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/*-
* Copyright (c) 2006 Verdens Gang AS
* Copyright (c) 2006-2019 Varnish Software AS
* All rights reserved.
*
* Author: Poul-Henning Kamp <phk@phk.freebsd.dk>
*
* SPDX-License-Identifier: BSD-2-Clause
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 AUTHOR OR CONTRIBUTORS 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.
*
* Runtime support for compiled VCL programs and VMODs.
*
* This file contains prototypes for functions nobody but VCC may call.
*
* NB: When this file is changed, lib/libvcc/generate.py *MUST* be rerun.
*/
VCL_VCL VPI_vcl_get(VRT_CTX, const char *);
void VPI_vcl_rel(VRT_CTX, VCL_VCL);
void VPI_vcl_select(VRT_CTX, VCL_VCL);
void v_noreturn_ VPI_Fail(const char *func, const char *file, int line,
const char *cond);
/***********************************************************************
* VPI_count() refers to this structure for coordinates into the VCL source.
*/
struct vpi_ref {
unsigned magic;
#define VPI_REF_MAGIC 0xd955f567
unsigned source;
unsigned offset;
unsigned line;
unsigned pos;
const char *token;
};
/* VPI's private part of the worker */
struct wrk_vpi {
unsigned magic;
#define WRK_VPI_MAGIC 0xaa3d3df3
unsigned handling;
unsigned trace; // caches (be)req.trace
unsigned ref; // index into (struct vpi_ref)[]
};
#define VPI_count(ctx, max, u) \
do { \
assert(u < max); \
(ctx)->vpi->ref = u; \
} while(0)
void VPI_trace(VRT_CTX, unsigned);
void VPI_vcl_fini(VRT_CTX);
int VPI_Vmod_Init(VRT_CTX, struct vmod **hdl, unsigned nbr, void *ptr, int len,
const char *nm, const char *path, const char *file_id, const char *backup);
void VPI_Vmod_Unload(VRT_CTX, struct vmod **hdl);
typedef int acl_match_f(VRT_CTX, const VCL_IP);
int VPI_acl_table(VRT_CTX, VCL_IP, unsigned n, unsigned m, const uint8_t *tbl,
const char * const *str, const char *fin);
struct vrt_acl {
unsigned magic;
#define VRT_ACL_MAGIC 0x78329d96
acl_match_f *match;
const char *name;
};
void VPI_acl_log(VRT_CTX, const char *);
/* vmod object instance info */
struct vpi_ii {
uintptr_t * p;
const char * const name;
};
/* Compile time regexp */
void VPI_re_init(struct vre **, const char *);
void VPI_re_fini(struct vre *);
/* VCL_SUB type */
struct vcl_sub {
unsigned magic;
#define VCL_SUB_MAGIC 0x12c1750b
const unsigned methods; // ok &= ctx->method
const char * const name;
const struct VCL_conf *vcl_conf;
vcl_func_f *func;
unsigned n;
unsigned nref;
unsigned called;
};
enum vcl_func_fail_e VPI_Call_Check(VRT_CTX, const struct VCL_conf *conf,
unsigned methods, unsigned n);
void VPI_Call_Begin(VRT_CTX, unsigned n);
void VPI_Call_End(VRT_CTX, unsigned n);
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