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/*
* include/haproxy/arg-t.h
* This file contains structure declarations for generaic argument parsing.
*
* Copyright 2012 Willy Tarreau <w@1wt.eu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _HAPROXY_ARG_T_H
#define _HAPROXY_ARG_T_H
#include <sys/socket.h>
#include <netinet/in.h>
#include <haproxy/buf-t.h>
#include <haproxy/protobuf-t.h>
#include <haproxy/stick_table-t.h>
#include <haproxy/vars-t.h>
/* encoding of each arg type : up to 31 types are supported */
#define ARGT_BITS 5
#define ARGT_NBTYPES (1 << ARGT_BITS)
#define ARGT_MASK (ARGT_NBTYPES - 1)
/* encoding of the arg count : up to 12 args are possible. 4 bits are left
* unused at the top.
*/
#define ARGM_MASK ((1 << ARGM_BITS) - 1)
#define ARGM_BITS 4
#define ARGM_NBARGS (sizeof(uint64_t) * 8 - ARGM_BITS) / ARGT_BITS
enum {
ARGT_STOP = 0, /* end of the arg list */
ARGT_SINT, /* signed 64 bit integer. */
ARGT_STR, /* string */
ARGT_IPV4, /* an IPv4 address */
ARGT_MSK4, /* an IPv4 address mask (integer or dotted), stored as ARGT_IPV4 */
ARGT_IPV6, /* an IPv6 address */
ARGT_MSK6, /* an IPv6 address mask (integer or dotted), stored as ARGT_IPV6 */
ARGT_TIME, /* a delay in ms by default, stored as ARGT_UINT */
ARGT_SIZE, /* a size in bytes by default, stored as ARGT_UINT */
ARGT_FE, /* a pointer to a frontend only */
ARGT_BE, /* a pointer to a backend only */
ARGT_TAB, /* a pointer to a stick table */
ARGT_SRV, /* a pointer to a server */
ARGT_USR, /* a pointer to a user list */
ARGT_MAP, /* a pointer to a map descriptor */
ARGT_REG, /* a pointer to a regex */
ARGT_VAR, /* contains a variable description. */
ARGT_PBUF_FNUM, /* a protocol buffer field number */
ARGT_PTR, /* a pointer to opaque data */
/* please update arg_type_names[] in args.c if you add entries here */
};
/* context where arguments are used, in order to help error reporting */
enum {
ARGC_ACL = 0, /* ACL */
ARGC_STK, /* sticking rule */
ARGC_TRK, /* tracking rule */
ARGC_LOG, /* log-format */
ARGC_LOGSD, /* log-format-sd */
ARGC_HRQ, /* http-request */
ARGC_HRS, /* http-response */
ARGC_UIF, /* unique-id-format */
ARGC_RDR, /* redirect */
ARGC_CAP, /* capture rule */
ARGC_SRV, /* server line */
ARGC_SPOE, /* spoe message args */
ARGC_UBK, /* use_backend message */
ARGC_USRV, /* use-server message */
ARGC_HERR, /* http-error */
ARGC_OT, /* opentracing scope args */
ARGC_OPT, /* option directive */
ARGC_TCO, /* tcp-request connection expression */
ARGC_TSE, /* tcp-request session expression */
ARGC_TRQ, /* tcp-request content expression */
ARGC_TRS, /* tcp-response content expression */
ARGC_TCK, /* tcp-check expression */
ARGC_CFG, /* configuration expression */
ARGC_CLI, /* CLI expression*/
};
/* flags used when compiling and executing regex */
#define ARGF_REG_ICASE 1
#define ARGF_REG_GLOB 2
/* some types that are externally defined */
struct proxy;
struct server;
struct userlist;
struct my_regex;
union arg_data {
long long int sint;
struct buffer str;
struct in_addr ipv4;
struct in6_addr ipv6;
struct proxy *prx; /* used for fe, be, tables */
struct server *srv;
struct stktable *t;
struct userlist *usr;
struct map_descriptor *map;
struct my_regex *reg;
struct pbuf_fid fid;
struct var_desc var;
void *ptr;
};
struct arg {
unsigned char type; /* argument type, ARGT_* */
unsigned char unresolved; /* argument contains a string in <str> that must be resolved and freed */
unsigned char type_flags; /* type-specific extra flags (eg: case sensitivity for regex), ARGF_* */
union arg_data data; /* argument data */
};
/* arg lists are used to store information about arguments that could not be
* resolved when parsing the configuration. The head is an arg_list which
* serves as a template to create new entries. Nothing here is allocated,
* so plain copies are OK.
*/
struct arg_list {
struct list list; /* chaining with other arg_list, or list head */
struct arg *arg; /* pointer to the arg, NULL on list head */
int arg_pos; /* argument position */
int ctx; /* context where the arg is used (ARGC_*) */
const char *kw; /* keyword making use of these args */
const char *conv; /* conv keyword when in conv, otherwise NULL */
const char *file; /* file name where the args are referenced */
int line; /* line number where the args are referenced */
};
#endif /* _HAPROXY_ARG_T_H */
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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