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Diffstat (limited to 'include/haproxy/arg-t.h')
| -rw-r--r-- | include/haproxy/arg-t.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/include/haproxy/arg-t.h b/include/haproxy/arg-t.h new file mode 100644 index 0000000..d90d326 --- /dev/null +++ b/include/haproxy/arg-t.h @@ -0,0 +1,152 @@ +/* + * 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: + */ |