[thirdparty/bird.git] / proto / rip / config.Y

/*
 *	BIRD -- RIP Configuration
 *
 *	(c) 1998--1999 Pavel Machek <pavel@ucw.cz>
 *	(c) 2004--2013 Ondrej Filip <feela@network.cz>
 *	(c) 2009--2015 Ondrej Zajicek <santiago@crfreenet.org>
 *	(c) 2009--2015 CZ.NIC z.s.p.o.
 *
 *	Can be freely distributed and used under the terms of the GNU GPL.
 */

CF_HDR

#include "proto/rip/rip.h"
#include "nest/iface.h"

CF_DEFINES

#define RIP_CFG ((struct rip_config *) this_proto)
#define RIP_IFACE ((struct rip_iface_config *) this_ipatt)

static inline int rip_cfg_is_v2(void) { return RIP_CFG->rip2; }
static inline int rip_cfg_is_ng(void) { return ! RIP_CFG->rip2; }

static inline void
rip_check_auth(void)
{
  if (rip_cfg_is_ng())
    cf_error("Authentication not supported in RIPng");
}


CF_DECLS

CF_KEYWORDS(RIP, NG, ECMP, LIMIT, WEIGHT, INFINITY, METRIC, UPDATE, TIMEOUT,
	    GARBAGE, PORT, ADDRESS, MODE, BROADCAST, MULTICAST, PASSIVE,
	    VERSION, SPLIT, HORIZON, POISON, REVERSE, CHECK, ZERO, TIME, BFD,
	    AUTHENTICATION, NONE, PLAINTEXT, CRYPTOGRAPHIC, MD5, TTL, SECURITY,
	    RX, TX, BUFFER, LENGTH, PRIORITY, ONLY, LINK, DEMAND, CIRCUIT,
	    RIP_METRIC, RIP_TAG)

%type <i> rip_variant rip_auth

CF_GRAMMAR

proto: rip_proto ;

rip_variant:
   RIP    { $$ = 1; }
 | RIP NG { $$ = 0; }
 ;

rip_proto_start: proto_start rip_variant
{
  this_proto = proto_config_new(&proto_rip, $1);
  this_proto->net_type = $2 ? NET_IP4 : NET_IP6;

  init_list(&RIP_CFG->patt_list);
  RIP_CFG->rip2 = $2;
  RIP_CFG->ecmp = rt_default_ecmp;
  RIP_CFG->infinity = RIP_DEFAULT_INFINITY;
  RIP_CFG->min_timeout_time = 60 S_;
  RIP_CFG->max_garbage_time = 60 S_;
};

rip_proto_item:
   proto_item
 | proto_channel
 | ECMP bool		{ RIP_CFG->ecmp = $2 ? RIP_DEFAULT_ECMP_LIMIT : 0; }
 | ECMP bool LIMIT expr	{ RIP_CFG->ecmp = $2 ? $4 : 0; }
 | INFINITY expr	{ RIP_CFG->infinity = $2; }
 | INTERFACE rip_iface
 ;

rip_proto_opts:
   /* empty */
 | rip_proto_opts rip_proto_item ';'
 ;

rip_proto:
   rip_proto_start proto_name '{' rip_proto_opts '}';


rip_iface_start:
{
  this_ipatt = cfg_allocz(sizeof(struct rip_iface_config));
  add_tail(&RIP_CFG->patt_list, NODE this_ipatt);
  init_list(&this_ipatt->ipn_list);
  reset_passwords();

  RIP_IFACE->metric = 1;
  RIP_IFACE->port = rip_cfg_is_v2() ? RIP_PORT : RIP_NG_PORT;
  RIP_IFACE->version = rip_cfg_is_v2() ? RIP_V2 : RIP_V1;
  RIP_IFACE->split_horizon = 1;
  RIP_IFACE->poison_reverse = 1;
  RIP_IFACE->check_zero = 1;
  RIP_IFACE->check_link = 1;
  RIP_IFACE->ttl_security = rip_cfg_is_v2() ? 0 : 1;
  RIP_IFACE->rx_buffer = rip_cfg_is_v2() ? RIP_MAX_PKT_LENGTH : 0;
  RIP_IFACE->tx_length = rip_cfg_is_v2() ? RIP_MAX_PKT_LENGTH : 0;
  RIP_IFACE->tx_tos = IP_PREC_INTERNET_CONTROL;
  RIP_IFACE->tx_priority = sk_priority_control;
  RIP_IFACE->update_time = RIP_DEFAULT_UPDATE_TIME;
  RIP_IFACE->timeout_time = RIP_DEFAULT_TIMEOUT_TIME;
  RIP_IFACE->garbage_time = RIP_DEFAULT_GARBAGE_TIME;
  RIP_IFACE->rxmt_time = RIP_DEFAULT_RXMT_TIME;
};

rip_iface_finish:
{
  /* Default mode is broadcast for RIPv1, multicast for RIPv2 and RIPng */
  if (!RIP_IFACE->mode)
    RIP_IFACE->mode = (rip_cfg_is_v2() && (RIP_IFACE->version == RIP_V1)) ?
      RIP_IM_BROADCAST : RIP_IM_MULTICAST;

  RIP_IFACE->passwords = get_passwords();

  if (!RIP_IFACE->auth_type != !RIP_IFACE->passwords)
    log(L_WARN "Authentication and password options should be used together");

  if (RIP_IFACE->passwords)
  {
    struct password_item *pass;
    WALK_LIST(pass, *RIP_IFACE->passwords)
    {
      if (pass->alg && (RIP_IFACE->auth_type != RIP_AUTH_CRYPTO))
	cf_error("Password algorithm option requires cryptographic authentication");

      /* Set default crypto algorithm (MD5) */
      if (!pass->alg && (RIP_IFACE->auth_type == RIP_AUTH_CRYPTO))
	pass->alg = ALG_MD5;
    }
  }

  RIP_CFG->min_timeout_time = MIN_(RIP_CFG->min_timeout_time, RIP_IFACE->timeout_time);
  RIP_CFG->max_garbage_time = MAX_(RIP_CFG->max_garbage_time, RIP_IFACE->garbage_time);
};

rip_iface_item:
   METRIC expr		{ RIP_IFACE->metric = $2; if (($2<1) || ($2>255)) cf_error("Metric must be in range 1-255"); }
 | MODE MULTICAST	{ RIP_IFACE->mode = RIP_IM_MULTICAST; }
 | MODE BROADCAST	{ RIP_IFACE->mode = RIP_IM_BROADCAST; if (rip_cfg_is_ng()) cf_error("Broadcast not supported in RIPng"); }
 | PASSIVE bool		{ RIP_IFACE->passive = $2; }
 | ADDRESS ipa		{ RIP_IFACE->address = $2; if (ipa_is_ip4($2) != rip_cfg_is_v2()) cf_error("IP address version mismatch"); }
 | PORT expr		{ RIP_IFACE->port = $2; if (($2<1) || ($2>65535)) cf_error("Invalid port number"); }
 | VERSION expr		{ RIP_IFACE->version = $2;
			  if (rip_cfg_is_ng()) cf_error("Version not supported in RIPng");
			  if (($2 != RIP_V1) && ($2 != RIP_V2)) cf_error("Unsupported version");
			}
 | VERSION ONLY bool	{ RIP_IFACE->version_only = $3; }
 | SPLIT HORIZON bool	{ RIP_IFACE->split_horizon = $3; }
 | POISON REVERSE bool	{ RIP_IFACE->poison_reverse = $3; }
 | CHECK ZERO bool	{ RIP_IFACE->check_zero = $3; }
 | DEMAND CIRCUIT bool	{ RIP_IFACE->demand_circuit = $3; }
 | UPDATE TIME expr	{ RIP_IFACE->update_time = $3 S_; if ($3<=0) cf_error("Update time must be positive"); }
 | TIMEOUT TIME expr	{ RIP_IFACE->timeout_time = $3 S_; if ($3<=0) cf_error("Timeout time must be positive"); }
 | GARBAGE TIME expr	{ RIP_IFACE->garbage_time = $3 S_; if ($3<=0) cf_error("Garbage time must be positive"); }
 | RETRANSMIT TIME expr_us { RIP_IFACE->rxmt_time = $3; if ($3<=0) cf_error("Retransmit time must be positive"); }
 | ECMP WEIGHT expr	{ RIP_IFACE->ecmp_weight = $3 - 1; if (($3<1) || ($3>256)) cf_error("ECMP weight must be in range 1-256"); }
 | RX BUFFER expr	{ RIP_IFACE->rx_buffer = $3; if (($3<256) || ($3>65535)) cf_error("RX length must be in range 256-65535"); }
 | TX LENGTH expr	{ RIP_IFACE->tx_length = $3; if (($3<256) || ($3>65535)) cf_error("TX length must be in range 256-65535"); }
 | TX tos		{ RIP_IFACE->tx_tos = $2; }
 | TX PRIORITY expr	{ RIP_IFACE->tx_priority = $3; }
 | TTL SECURITY bool	{ RIP_IFACE->ttl_security = $3; }
 | TTL SECURITY TX ONLY	{ RIP_IFACE->ttl_security = 2; }
 | CHECK LINK bool	{ RIP_IFACE->check_link = $3; }
 | BFD bool		{ RIP_IFACE->bfd = $2; cf_check_bfd($2); }
 | AUTHENTICATION rip_auth { RIP_IFACE->auth_type = $2; if ($2) rip_check_auth(); }
 | password_list	{ rip_check_auth(); }
;

rip_auth:
   NONE			{ $$ = RIP_AUTH_NONE; }
 | PLAINTEXT		{ $$ = RIP_AUTH_PLAIN; }
 | CRYPTOGRAPHIC	{ $$ = RIP_AUTH_CRYPTO; }
 | MD5			{ $$ = RIP_AUTH_CRYPTO; }	/* For backward compatibility */
 ;

rip_iface_opts:
   /* empty */
 | rip_iface_opts rip_iface_item ';'
 ;

rip_iface_opt_list:
   /* empty */
 | '{' rip_iface_opts '}'
 ;

rip_iface:
  rip_iface_start iface_patt_list_nopx rip_iface_opt_list rip_iface_finish;


dynamic_attr: RIP_METRIC { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_RIP_METRIC); } ;
dynamic_attr: RIP_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_RIP_TAG); } ;

CF_CLI_HELP(SHOW RIP, ..., [[Show information about RIP protocol]]);

CF_CLI(SHOW RIP INTERFACES, optproto opttext, [<name>] [\"<interface>\"], [[Show information about RIP interfaces]])
{ rip_show_interfaces(proto_get_named($4, &proto_rip), $5); };

CF_CLI(SHOW RIP NEIGHBORS, optproto opttext, [<name>] [\"<interface>\"], [[Show information about RIP neighbors]])
{ rip_show_neighbors(proto_get_named($4, &proto_rip), $5); };


CF_CODE

CF_END
Commit	Line	Data
c74c0e3c MM	1	/*
	2	* BIRD -- RIP Configuration
	3	*
8465dccb OZ	4	* (c) 1998--1999 Pavel Machek <pavel@ucw.cz>
	5	* (c) 2004--2013 Ondrej Filip <feela@network.cz>
	6	* (c) 2009--2015 Ondrej Zajicek <santiago@crfreenet.org>
	7	* (c) 2009--2015 CZ.NIC z.s.p.o.
	8	*
c74c0e3c MM	9	* Can be freely distributed and used under the terms of the GNU GPL.
	10	*/
	11
	12	CF_HDR
	13
	14	#include "proto/rip/rip.h"
2d9290e9 PM	15	#include "nest/iface.h"
2d9290e9 PM	16
2edb31b0 MM	17	CF_DEFINES
2edb31b0 MM	18
8465dccb OZ	19	#define RIP_CFG ((struct rip_config *) this_proto)
	20	#define RIP_IFACE ((struct rip_iface_config *) this_ipatt)
	21
	22	static inline int rip_cfg_is_v2(void) { return RIP_CFG->rip2; }
	23	static inline int rip_cfg_is_ng(void) { return ! RIP_CFG->rip2; }
	24
	25	static inline void
	26	rip_check_auth(void)
	27	{
	28	if (rip_cfg_is_ng())
	29	cf_error("Authentication not supported in RIPng");
	30	}
c74c0e3c	31
70e212f9	32
c74c0e3c MM	33	CF_DECLS
c74c0e3c MM	34
da3cf9ea	35	CF_KEYWORDS(RIP, NG, ECMP, LIMIT, WEIGHT, INFINITY, METRIC, UPDATE, TIMEOUT,
8465dccb OZ	36	GARBAGE, PORT, ADDRESS, MODE, BROADCAST, MULTICAST, PASSIVE,
	37	VERSION, SPLIT, HORIZON, POISON, REVERSE, CHECK, ZERO, TIME, BFD,
	38	AUTHENTICATION, NONE, PLAINTEXT, CRYPTOGRAPHIC, MD5, TTL, SECURITY,
22c3cf95 OZ	39	RX, TX, BUFFER, LENGTH, PRIORITY, ONLY, LINK, DEMAND, CIRCUIT,
22c3cf95 OZ	40	RIP_METRIC, RIP_TAG)
50e89a6e	41
23c212e7	42	%type <i> rip_variant rip_auth
c74c0e3c MM	43
	44	CF_GRAMMAR
	45
f851f0d7	46	proto: rip_proto ;
c74c0e3c	47
23c212e7	48	rip_variant:
da3cf9ea OZ	49	RIP { $$ = 1; }
da3cf9ea OZ	50	\| RIP NG { $$ = 0; }
23c212e7 OZ	51	;
	52
	53	rip_proto_start: proto_start rip_variant
8465dccb OZ	54	{
8465dccb OZ	55	this_proto = proto_config_new(&proto_rip, $1);
f4a60a9b	56	this_proto->net_type = $2 ? NET_IP4 : NET_IP6;
c74c0e3c	57
f4a60a9b	58	init_list(&RIP_CFG->patt_list);
23c212e7	59	RIP_CFG->rip2 = $2;
517d05df	60	RIP_CFG->ecmp = rt_default_ecmp;
8465dccb	61	RIP_CFG->infinity = RIP_DEFAULT_INFINITY;
92cc1e74 OZ	62	RIP_CFG->min_timeout_time = 60 S_;
92cc1e74 OZ	63	RIP_CFG->max_garbage_time = 60 S_;
8465dccb	64	};
50e89a6e	65
8465dccb OZ	66	rip_proto_item:
8465dccb OZ	67	proto_item
f4a60a9b	68	\| proto_channel
8465dccb	69	\| ECMP bool { RIP_CFG->ecmp = $2 ? RIP_DEFAULT_ECMP_LIMIT : 0; }
6aaaa635	70	\| ECMP bool LIMIT expr { RIP_CFG->ecmp = $2 ? $4 : 0; }
8465dccb OZ	71	\| INFINITY expr { RIP_CFG->infinity = $2; }
	72	\| INTERFACE rip_iface
	73	;
20e94fb8	74
8465dccb OZ	75	rip_proto_opts:
	76	/* empty */
	77	\| rip_proto_opts rip_proto_item ';'
50e89a6e PM	78	;
50e89a6e PM	79
8465dccb OZ	80	rip_proto:
	81	rip_proto_start proto_name '{' rip_proto_opts '}';
	82
	83
	84	rip_iface_start:
	85	{
	86	this_ipatt = cfg_allocz(sizeof(struct rip_iface_config));
	87	add_tail(&RIP_CFG->patt_list, NODE this_ipatt);
	88	init_list(&this_ipatt->ipn_list);
	89	reset_passwords();
	90
	91	RIP_IFACE->metric = 1;
	92	RIP_IFACE->port = rip_cfg_is_v2() ? RIP_PORT : RIP_NG_PORT;
	93	RIP_IFACE->version = rip_cfg_is_v2() ? RIP_V2 : RIP_V1;
	94	RIP_IFACE->split_horizon = 1;
	95	RIP_IFACE->poison_reverse = 1;
	96	RIP_IFACE->check_zero = 1;
517d05df	97	RIP_IFACE->check_link = 1;
8465dccb OZ	98	RIP_IFACE->ttl_security = rip_cfg_is_v2() ? 0 : 1;
	99	RIP_IFACE->rx_buffer = rip_cfg_is_v2() ? RIP_MAX_PKT_LENGTH : 0;
	100	RIP_IFACE->tx_length = rip_cfg_is_v2() ? RIP_MAX_PKT_LENGTH : 0;
	101	RIP_IFACE->tx_tos = IP_PREC_INTERNET_CONTROL;
	102	RIP_IFACE->tx_priority = sk_priority_control;
	103	RIP_IFACE->update_time = RIP_DEFAULT_UPDATE_TIME;
	104	RIP_IFACE->timeout_time = RIP_DEFAULT_TIMEOUT_TIME;
	105	RIP_IFACE->garbage_time = RIP_DEFAULT_GARBAGE_TIME;
22c3cf95	106	RIP_IFACE->rxmt_time = RIP_DEFAULT_RXMT_TIME;
8465dccb OZ	107	};
	108
	109	rip_iface_finish:
	110	{
390601f0 OZ	111	/* Default mode is broadcast for RIPv1, multicast for RIPv2 and RIPng */
	112	if (!RIP_IFACE->mode)
	113	RIP_IFACE->mode = (rip_cfg_is_v2() && (RIP_IFACE->version == RIP_V1)) ?
	114	RIP_IM_BROADCAST : RIP_IM_MULTICAST;
	115
8465dccb OZ	116	RIP_IFACE->passwords = get_passwords();
	117
	118	if (!RIP_IFACE->auth_type != !RIP_IFACE->passwords)
	119	log(L_WARN "Authentication and password options should be used together");
	120
390601f0 OZ	121	if (RIP_IFACE->passwords)
	122	{
	123	struct password_item *pass;
	124	WALK_LIST(pass, *RIP_IFACE->passwords)
	125	{
	126	if (pass->alg && (RIP_IFACE->auth_type != RIP_AUTH_CRYPTO))
	127	cf_error("Password algorithm option requires cryptographic authentication");
	128
	129	/* Set default crypto algorithm (MD5) */
	130	if (!pass->alg && (RIP_IFACE->auth_type == RIP_AUTH_CRYPTO))
	131	pass->alg = ALG_MD5;
	132	}
	133	}
8465dccb OZ	134
	135	RIP_CFG->min_timeout_time = MIN_(RIP_CFG->min_timeout_time, RIP_IFACE->timeout_time);
	136	RIP_CFG->max_garbage_time = MAX_(RIP_CFG->max_garbage_time, RIP_IFACE->garbage_time);
	137	};
	138
2d9290e9	139	rip_iface_item:
8465dccb OZ	140	METRIC expr { RIP_IFACE->metric = $2; if (($2<1) \|\| ($2>255)) cf_error("Metric must be in range 1-255"); }
	141	\| MODE MULTICAST { RIP_IFACE->mode = RIP_IM_MULTICAST; }
	142	\| MODE BROADCAST { RIP_IFACE->mode = RIP_IM_BROADCAST; if (rip_cfg_is_ng()) cf_error("Broadcast not supported in RIPng"); }
	143	\| PASSIVE bool { RIP_IFACE->passive = $2; }
08b3a24d	144	\| ADDRESS ipa { RIP_IFACE->address = $2; if (ipa_is_ip4($2) != rip_cfg_is_v2()) cf_error("IP address version mismatch"); }
8465dccb OZ	145	\| PORT expr { RIP_IFACE->port = $2; if (($2<1) \|\| ($2>65535)) cf_error("Invalid port number"); }
	146	\| VERSION expr { RIP_IFACE->version = $2;
	147	if (rip_cfg_is_ng()) cf_error("Version not supported in RIPng");
	148	if (($2 != RIP_V1) && ($2 != RIP_V2)) cf_error("Unsupported version");
	149	}
	150	\| VERSION ONLY bool { RIP_IFACE->version_only = $3; }
	151	\| SPLIT HORIZON bool { RIP_IFACE->split_horizon = $3; }
	152	\| POISON REVERSE bool { RIP_IFACE->poison_reverse = $3; }
	153	\| CHECK ZERO bool { RIP_IFACE->check_zero = $3; }
22c3cf95	154	\| DEMAND CIRCUIT bool { RIP_IFACE->demand_circuit = $3; }
ee528fbd OZ	155	\| UPDATE TIME expr { RIP_IFACE->update_time = $3 S_; if ($3<=0) cf_error("Update time must be positive"); }
	156	\| TIMEOUT TIME expr { RIP_IFACE->timeout_time = $3 S_; if ($3<=0) cf_error("Timeout time must be positive"); }
	157	\| GARBAGE TIME expr { RIP_IFACE->garbage_time = $3 S_; if ($3<=0) cf_error("Garbage time must be positive"); }
22c3cf95	158	\| RETRANSMIT TIME expr_us { RIP_IFACE->rxmt_time = $3; if ($3<=0) cf_error("Retransmit time must be positive"); }
8465dccb	159	\| ECMP WEIGHT expr { RIP_IFACE->ecmp_weight = $3 - 1; if (($3<1) \|\| ($3>256)) cf_error("ECMP weight must be in range 1-256"); }
9036bbf2	160	\| RX BUFFER expr { RIP_IFACE->rx_buffer = $3; if (($3<256) \|\| ($3>65535)) cf_error("RX length must be in range 256-65535"); }
8465dccb OZ	161	\| TX LENGTH expr { RIP_IFACE->tx_length = $3; if (($3<256) \|\| ($3>65535)) cf_error("TX length must be in range 256-65535"); }
	162	\| TX tos { RIP_IFACE->tx_tos = $2; }
	163	\| TX PRIORITY expr { RIP_IFACE->tx_priority = $3; }
	164	\| TTL SECURITY bool { RIP_IFACE->ttl_security = $3; }
	165	\| TTL SECURITY TX ONLY { RIP_IFACE->ttl_security = 2; }
	166	\| CHECK LINK bool { RIP_IFACE->check_link = $3; }
	167	\| BFD bool { RIP_IFACE->bfd = $2; cf_check_bfd($2); }
	168	\| AUTHENTICATION rip_auth { RIP_IFACE->auth_type = $2; if ($2) rip_check_auth(); }
	169	\| password_list { rip_check_auth(); }
	170	;
	171
	172	rip_auth:
	173	NONE { $$ = RIP_AUTH_NONE; }
	174	\| PLAINTEXT { $$ = RIP_AUTH_PLAIN; }
	175	\| CRYPTOGRAPHIC { $$ = RIP_AUTH_CRYPTO; }
56cb3bed	176	\| MD5 { $$ = RIP_AUTH_CRYPTO; } /* For backward compatibility */
2d9290e9 PM	177	;
2d9290e9 PM	178
8465dccb	179	rip_iface_opts:
20e94fb8	180	/* empty */
2d9290e9 PM	181	\| rip_iface_opts rip_iface_item ';'
	182	;
	183
20e94fb8 OZ	184	rip_iface_opt_list:
	185	/* empty */
	186	\| '{' rip_iface_opts '}'
	187	;
2d9290e9	188
8465dccb OZ	189	rip_iface:
8465dccb OZ	190	rip_iface_start iface_patt_list_nopx rip_iface_opt_list rip_iface_finish;
c74c0e3c	191
2d9290e9	192
78976974 MM	193	dynamic_attr: RIP_METRIC { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_RIP_METRIC); } ;
78976974 MM	194	dynamic_attr: RIP_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_RIP_TAG); } ;
db1326aa	195
8465dccb OZ	196	CF_CLI_HELP(SHOW RIP, ..., [[Show information about RIP protocol]]);
8465dccb OZ	197
c0e958e0	198	CF_CLI(SHOW RIP INTERFACES, optproto opttext, [<name>] [\"<interface>\"], [[Show information about RIP interfaces]])
8465dccb OZ	199	{ rip_show_interfaces(proto_get_named($4, &proto_rip), $5); };
8465dccb OZ	200
c0e958e0	201	CF_CLI(SHOW RIP NEIGHBORS, optproto opttext, [<name>] [\"<interface>\"], [[Show information about RIP neighbors]])
8465dccb OZ	202	{ rip_show_neighbors(proto_get_named($4, &proto_rip), $5); };
	203
	204
8edf2361	205	CF_CODE
2d9290e9	206
c74c0e3c	207	CF_END