457 lines
11 KiB
Text
457 lines
11 KiB
Text
/*
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* BIRD -- Core Configuration
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*
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* (c) 1998--2000 Martin Mares <mj@ucw.cz>
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* (c) 2004 Ondrej Filip <feela@network.cz>
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*
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* Can be freely distributed and used under the terms of the GNU GPL.
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*/
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CF_HDR
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#include "nest/rt-dev.h"
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#include "nest/password.h"
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#include "nest/cmds.h"
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#include "lib/lists.h"
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CF_DEFINES
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static struct proto_config *this_proto;
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static struct iface_patt *this_ipatt;
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static struct iface_patt_node *this_ipn;
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static list *this_p_list;
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static struct password_item *this_p_item;
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static int password_id;
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static inline void
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reset_passwords(void)
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{
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this_p_list = NULL;
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}
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static inline list *
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get_passwords(void)
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{
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list *rv = this_p_list;
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this_p_list = NULL;
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return rv;
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}
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CF_DECLS
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CF_KEYWORDS(ROUTER, ID, PROTOCOL, PREFERENCE, DISABLED, DEBUG, ALL, OFF, DIRECT)
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CF_KEYWORDS(INTERFACE, IMPORT, EXPORT, FILTER, NONE, TABLE, STATES, ROUTES, FILTERS)
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CF_KEYWORDS(PASSWORD, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, INTERFACES)
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CF_KEYWORDS(PRIMARY, STATS, COUNT, FOR, COMMANDS, PREEXPORT, GENERATE)
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CF_KEYWORDS(LISTEN, BGP, V6ONLY, ADDRESS, PORT, PASSWORDS)
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CF_ENUM(T_ENUM_RTS, RTS_, DUMMY, STATIC, INHERIT, DEVICE, STATIC_DEVICE, REDIRECT,
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RIP, OSPF, OSPF_IA, OSPF_EXT1, OSPF_EXT2, BGP, PIPE)
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CF_ENUM(T_ENUM_SCOPE, SCOPE_, HOST, LINK, SITE, ORGANIZATION, UNIVERSE)
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CF_ENUM(T_ENUM_RTC, RTC_, UNICAST, BROADCAST, MULTICAST, ANYCAST)
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CF_ENUM(T_ENUM_RTD, RTD_, ROUTER, DEVICE, BLACKHOLE, UNREACHABLE, PROHIBIT)
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%type <i32> idval
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%type <f> imexport
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%type <r> rtable
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%type <s> optsym
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%type <ra> r_args
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%type <i> echo_mask echo_size debug_mask debug_list debug_flag export_or_preexport
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%type <t> proto_patt
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CF_GRAMMAR
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/* Setting of router ID */
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CF_ADDTO(conf, rtrid)
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rtrid: ROUTER ID idval ';' {
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new_config->router_id = $3;
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}
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;
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idval:
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NUM { $$ = $1; }
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| RTRID
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| IPA {
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#ifndef IPV6
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$$ = ipa_to_u32($1);
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#else
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cf_error("Router IDs must be entered as hexadecimal numbers or IPv4 addresses in IPv6 version");
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#endif
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}
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;
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CF_ADDTO(conf, listen)
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listen: LISTEN BGP listen_opts ';' ;
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listen_opts:
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/* Nothing */
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| listen_opts listen_opt
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;
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listen_opt:
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ADDRESS ipa { new_config->listen_bgp_addr = $2; }
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| PORT expr { new_config->listen_bgp_port = $2; }
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| V6ONLY { new_config->listen_bgp_flags |= SKF_V6ONLY; }
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;
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/* Creation of routing tables */
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CF_ADDTO(conf, newtab)
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newtab: TABLE SYM {
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rt_new_table($2);
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}
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;
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/* Definition of protocols */
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CF_ADDTO(conf, proto)
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proto_start: PROTOCOL
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;
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proto_name:
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/* EMPTY */ {
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struct symbol *s = cf_default_name(this_proto->protocol->template, &this_proto->protocol->name_counter);
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s->class = SYM_PROTO;
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s->def = this_proto;
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this_proto->name = s->name;
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}
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| SYM {
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cf_define_symbol($1, SYM_PROTO, this_proto);
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this_proto->name = $1->name;
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}
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;
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proto_item:
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/* EMPTY */
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| PREFERENCE expr {
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if ($2 < 0 || $2 > 255) cf_error("Invalid preference");
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this_proto->preference = $2;
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}
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| DISABLED bool { this_proto->disabled = $2; }
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| DEBUG debug_mask { this_proto->debug = $2; }
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| IMPORT imexport { this_proto->in_filter = $2; }
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| EXPORT imexport { this_proto->out_filter = $2; }
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| TABLE rtable { this_proto->table = $2; }
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;
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imexport:
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FILTER filter { $$ = $2; }
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| where_filter
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| ALL { $$ = FILTER_ACCEPT; }
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| NONE { $$ = FILTER_REJECT; }
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;
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rtable:
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SYM {
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if ($1->class != SYM_TABLE) cf_error("Table name expected");
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$$ = $1->def;
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}
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;
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CF_ADDTO(conf, debug_default)
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debug_default:
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DEBUG PROTOCOLS debug_mask { new_config->proto_default_debug = $3; }
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| DEBUG COMMANDS expr { new_config->cli_debug = $3; }
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;
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/* Interface patterns */
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iface_patt_node_init:
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/* EMPTY */ {
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struct iface_patt_node *ipn = cfg_allocz(sizeof(struct iface_patt_node));
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add_tail(&this_ipatt->ipn_list, NODE ipn);
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this_ipn = ipn;
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}
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;
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iface_patt_node_body:
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TEXT { this_ipn->pattern = $1; this_ipn->prefix = IPA_NONE; this_ipn->pxlen = 0; }
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| prefix { this_ipn->pattern = NULL; this_ipn->prefix = $1.addr; this_ipn->pxlen = $1.len; }
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| TEXT prefix { this_ipn->pattern = $1; this_ipn->prefix = $2.addr; this_ipn->pxlen = $2.len; }
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;
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iface_negate:
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{ this_ipn->positive = 1; }
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| '-' { this_ipn->positive = 0; }
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;
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iface_patt_node:
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iface_patt_node_init iface_negate iface_patt_node_body
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;
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iface_patt_list:
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iface_patt_node
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| iface_patt_list ',' iface_patt_node
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;
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/* Direct device route protocol */
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CF_ADDTO(proto, dev_proto '}')
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dev_proto_start: proto_start DIRECT {
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struct rt_dev_config *p = proto_config_new(&proto_device, sizeof(struct rt_dev_config));
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this_proto = &p->c;
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p->c.preference = DEF_PREF_DIRECT;
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init_list(&p->iface_list);
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}
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;
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dev_proto:
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dev_proto_start proto_name '{'
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| dev_proto proto_item ';'
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| dev_proto dev_iface_patt ';'
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;
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dev_iface_init:
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/* EMPTY */ {
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struct rt_dev_config *p = (void *) this_proto;
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this_ipatt = cfg_allocz(sizeof(struct iface_patt));
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add_tail(&p->iface_list, NODE this_ipatt);
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init_list(&this_ipatt->ipn_list);
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}
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;
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dev_iface_patt:
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INTERFACE dev_iface_init iface_patt_list
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;
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/* Debug flags */
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debug_mask:
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ALL { $$ = ~0; }
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| OFF { $$ = 0; }
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| '{' debug_list '}' { $$ = $2; }
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;
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debug_list:
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debug_flag
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| debug_list ',' debug_flag { $$ = $1 | $3; }
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;
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debug_flag:
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STATES { $$ = D_STATES; }
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| ROUTES { $$ = D_ROUTES; }
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| FILTERS { $$ = D_FILTERS; }
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| INTERFACES { $$ = D_IFACES; }
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| EVENTS { $$ = D_EVENTS; }
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| PACKETS { $$ = D_PACKETS; }
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;
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/* Password lists */
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password_list:
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PASSWORDS '{' password_items '}'
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| password_item
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;
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password_items:
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/* empty */
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| password_item ';' password_items
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;
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password_item:
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password_item_begin '{' password_item_params '}'
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| password_item_begin
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;
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password_item_begin:
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PASSWORD TEXT {
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if (!this_p_list) {
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this_p_list = cfg_alloc(sizeof(list));
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init_list(this_p_list);
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password_id = 1;
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}
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this_p_item = cfg_alloc(sizeof (struct password_item));
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this_p_item->password = $2;
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this_p_item->genfrom = 0;
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this_p_item->gento = TIME_INFINITY;
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this_p_item->accfrom = 0;
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this_p_item->accto = TIME_INFINITY;
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this_p_item->id = password_id++;
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add_tail(this_p_list, &this_p_item->n);
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}
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;
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password_item_params:
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/* empty */ { }
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| GENERATE FROM datetime ';' password_item_params { this_p_item->genfrom = $3; }
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| GENERATE TO datetime ';' password_item_params { this_p_item->gento = $3; }
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| ACCEPT FROM datetime ';' password_item_params { this_p_item->accfrom = $3; }
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| ACCEPT TO datetime ';' password_item_params { this_p_item->accto = $3; }
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| ID expr ';' password_item_params { this_p_item->id = $2; if ($2 <= 0) cf_error("Password ID has to be greated than zero."); }
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;
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/* Core commands */
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CF_CLI_HELP(SHOW, ..., [[Show status information]])
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CF_CLI(SHOW STATUS,,, [[Show router status]])
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{ cmd_show_status(); } ;
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CF_CLI(SHOW PROTOCOLS, optsym, [<name>], [[Show routing protocols]])
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{ proto_show($3, 0); } ;
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CF_CLI(SHOW PROTOCOLS ALL, optsym, [<name>], [[Show routing protocol details]])
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{ proto_show($4, 1); } ;
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optsym:
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SYM
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| /* empty */ { $$ = NULL; }
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;
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CF_CLI(SHOW INTERFACES,,, [[Show network interfaces]])
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{ if_show(); } ;
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CF_CLI(SHOW INTERFACES SUMMARY,,, [[Show summary of network interfaces]])
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{ if_show_summary(); } ;
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CF_CLI(SHOW ROUTE, r_args, [[[<prefix>|for <prefix>|for <ip>] [table <t>] [filter <f>|where <cond>] [all] [primary] [(export|preexport) <p>] [protocol <p>] [stats|count]]], [[Show routing table]])
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{ rt_show($3); } ;
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r_args:
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/* empty */ {
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$$ = cfg_allocz(sizeof(struct rt_show_data));
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$$->pxlen = 256;
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$$->filter = FILTER_ACCEPT;
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$$->table = config->master_rtc->table;
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}
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| r_args prefix {
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$$ = $1;
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if ($$->pxlen != 256) cf_error("Only one prefix expected");
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$$->prefix = $2.addr;
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$$->pxlen = $2.len;
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}
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| r_args FOR prefix_or_ipa {
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$$ = $1;
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if ($$->pxlen != 256) cf_error("Only one prefix expected");
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$$->prefix = $3.addr;
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$$->pxlen = $3.len;
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$$->show_for = 1;
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}
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| r_args TABLE SYM {
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$$ = $1;
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if ($3->class != SYM_TABLE) cf_error("%s is not a table", $3->name);
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$$->table = ((struct rtable_config *)$3->def)->table;
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}
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| r_args FILTER filter {
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$$ = $1;
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if ($$->filter != FILTER_ACCEPT) cf_error("Filter specified twice");
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$$->filter = $3;
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}
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| r_args where_filter {
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$$ = $1;
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if ($$->filter != FILTER_ACCEPT) cf_error("Filter specified twice");
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$$->filter = $2;
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}
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| r_args ALL {
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$$ = $1;
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$$->verbose = 1;
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}
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| r_args PRIMARY {
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$$ = $1;
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$$->primary_only = 1;
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}
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| r_args export_or_preexport SYM {
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struct proto_config *c = (struct proto_config *) $3->def;
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$$ = $1;
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if ($$->export_mode) cf_error("Protocol specified twice");
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if ($3->class != SYM_PROTO || !c->proto) cf_error("%s is not a protocol", $3->name);
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$$->export_mode = $2;
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$$->primary_only = 1;
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$$->export_protocol = c->proto;
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$$->running_on_config = c->proto->cf->global;
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}
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| r_args PROTOCOL SYM {
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struct proto_config *c = (struct proto_config *) $3->def;
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$$ = $1;
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if ($$->show_protocol) cf_error("Protocol specified twice");
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if ($3->class != SYM_PROTO || !c->proto) cf_error("%s is not a protocol", $3->name);
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$$->show_protocol = c->proto;
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$$->running_on_config = c->proto->cf->global;
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}
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| r_args STATS {
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$$ = $1;
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$$->stats = 1;
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}
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| r_args COUNT {
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$$ = $1;
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$$->stats = 2;
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}
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;
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export_or_preexport:
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PREEXPORT { $$ = 1; }
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| EXPORT { $$ = 2; }
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;
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CF_CLI(SHOW SYMBOLS, optsym, [<symbol>], [[Show all known symbolic names]])
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{ cmd_show_symbols($3); } ;
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CF_CLI_HELP(DUMP, ..., [[Dump debugging information]])
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CF_CLI(DUMP RESOURCES,,, [[Dump all allocated resource]])
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{ rdump(&root_pool); cli_msg(0, ""); } ;
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CF_CLI(DUMP SOCKETS,,, [[Dump open sockets]])
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{ sk_dump_all(); cli_msg(0, ""); } ;
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CF_CLI(DUMP INTERFACES,,, [[Dump interface information]])
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{ if_dump_all(); cli_msg(0, ""); } ;
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CF_CLI(DUMP NEIGHBORS,,, [[Dump neighbor cache]])
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{ neigh_dump_all(); cli_msg(0, ""); } ;
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CF_CLI(DUMP ATTRIBUTES,,, [[Dump attribute cache]])
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{ rta_dump_all(); cli_msg(0, ""); } ;
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CF_CLI(DUMP ROUTES,,, [[Dump routing table]])
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{ rt_dump_all(); cli_msg(0, ""); } ;
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CF_CLI(DUMP PROTOCOLS,,, [[Dump protocol information]])
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{ protos_dump_all(); cli_msg(0, ""); } ;
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CF_CLI(ECHO, echo_mask echo_size, [all | off | <mask>] [<buffer-size>], [[Configure echoing of log messages]]) {
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cli_set_log_echo(this_cli, $2, $3);
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cli_msg(0, "");
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} ;
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echo_mask:
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ALL { $$ = ~0; }
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| OFF { $$ = 0; }
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| NUM
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;
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echo_size:
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/* empty */ { $$ = 4096; }
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| NUM {
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if ($1 < 256 || $1 > 65536) cf_error("Invalid log buffer size");
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$$ = $1;
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}
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;
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CF_CLI(DISABLE, proto_patt, <protocol> | \"<pattern>\" | all, [[Disable protocol]])
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{ proto_xxable($2, 0); } ;
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CF_CLI(ENABLE, proto_patt, <protocol> | \"<pattern>\" | all, [[Enable protocol]])
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{ proto_xxable($2, 1); } ;
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CF_CLI(RESTART, proto_patt, <protocol> | \"<pattern>\" | all, [[Restart protocol]])
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{ proto_xxable($2, 2); } ;
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CF_CLI_HELP(DEBUG, ..., [[Control protocol debugging]])
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CF_CLI(DEBUG, proto_patt debug_mask, (<protocol> | <pattern> | all) (all | off | { states | routes | filters | events | packets }), [[Control protocol debugging]])
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{ proto_debug($2, $3); }
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;
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proto_patt:
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SYM { $$ = $1->name; }
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| ALL { $$ = "*"; }
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| TEXT
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;
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CF_CODE
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CF_END
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