Annotation of embedaddon/bird/proto/rip/config.Y, revision 1.1

1.1     ! misho       1: /*
        !             2:  *     BIRD -- RIP Configuration
        !             3:  *
        !             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:  *
        !             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"
        !            15: #include "nest/iface.h"
        !            16: 
        !            17: CF_DEFINES
        !            18: 
        !            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: }
        !            31: 
        !            32: 
        !            33: CF_DECLS
        !            34: 
        !            35: CF_KEYWORDS(RIP, ECMP, LIMIT, WEIGHT, INFINITY, METRIC, UPDATE, TIMEOUT,
        !            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,
        !            39:            RX, TX, BUFFER, LENGTH, PRIORITY, ONLY, LINK, RIP_METRIC, RIP_TAG)
        !            40: 
        !            41: %type <i> rip_auth
        !            42: 
        !            43: CF_GRAMMAR
        !            44: 
        !            45: CF_ADDTO(proto, rip_proto)
        !            46: 
        !            47: rip_proto_start: proto_start RIP
        !            48: {
        !            49:   this_proto = proto_config_new(&proto_rip, $1);
        !            50:   init_list(&RIP_CFG->patt_list);
        !            51: 
        !            52:   RIP_CFG->rip2 = RIP_IS_V2;
        !            53:   RIP_CFG->infinity = RIP_DEFAULT_INFINITY;
        !            54: 
        !            55:   RIP_CFG->min_timeout_time = 60;
        !            56:   RIP_CFG->max_garbage_time = 60;
        !            57: };
        !            58: 
        !            59: rip_proto_item:
        !            60:    proto_item
        !            61:  | ECMP bool           { RIP_CFG->ecmp = $2 ? RIP_DEFAULT_ECMP_LIMIT : 0; }
        !            62:  | ECMP bool LIMIT expr        { RIP_CFG->ecmp = $2 ? $4 : 0; if ($4 < 0) cf_error("ECMP limit cannot be negative"); }
        !            63:  | INFINITY expr       { RIP_CFG->infinity = $2; }
        !            64:  | INTERFACE rip_iface
        !            65:  ;
        !            66: 
        !            67: rip_proto_opts:
        !            68:    /* empty */
        !            69:  | rip_proto_opts rip_proto_item ';'
        !            70:  ;
        !            71: 
        !            72: rip_proto:
        !            73:    rip_proto_start proto_name '{' rip_proto_opts '}';
        !            74: 
        !            75: 
        !            76: rip_iface_start:
        !            77: {
        !            78:   this_ipatt = cfg_allocz(sizeof(struct rip_iface_config));
        !            79:   add_tail(&RIP_CFG->patt_list, NODE this_ipatt);
        !            80:   init_list(&this_ipatt->ipn_list);
        !            81:   reset_passwords();
        !            82: 
        !            83:   RIP_IFACE->metric = 1;
        !            84:   RIP_IFACE->port = rip_cfg_is_v2() ? RIP_PORT : RIP_NG_PORT;
        !            85:   RIP_IFACE->version = rip_cfg_is_v2() ? RIP_V2 : RIP_V1;
        !            86:   RIP_IFACE->split_horizon = 1;
        !            87:   RIP_IFACE->poison_reverse = 1;
        !            88:   RIP_IFACE->check_zero = 1;
        !            89:   RIP_IFACE->ttl_security = rip_cfg_is_v2() ? 0 : 1;
        !            90:   RIP_IFACE->rx_buffer = rip_cfg_is_v2() ? RIP_MAX_PKT_LENGTH : 0;
        !            91:   RIP_IFACE->tx_length = rip_cfg_is_v2() ? RIP_MAX_PKT_LENGTH : 0;
        !            92:   RIP_IFACE->tx_tos = IP_PREC_INTERNET_CONTROL;
        !            93:   RIP_IFACE->tx_priority = sk_priority_control;
        !            94:   RIP_IFACE->update_time = RIP_DEFAULT_UPDATE_TIME;
        !            95:   RIP_IFACE->timeout_time = RIP_DEFAULT_TIMEOUT_TIME;
        !            96:   RIP_IFACE->garbage_time = RIP_DEFAULT_GARBAGE_TIME;
        !            97: };
        !            98: 
        !            99: rip_iface_finish:
        !           100: {
        !           101:   /* Default mode is broadcast for RIPv1, multicast for RIPv2 and RIPng */
        !           102:   if (!RIP_IFACE->mode)
        !           103:     RIP_IFACE->mode = (rip_cfg_is_v2() && (RIP_IFACE->version == RIP_V1)) ?
        !           104:       RIP_IM_BROADCAST : RIP_IM_MULTICAST;
        !           105: 
        !           106:   RIP_IFACE->passwords = get_passwords();
        !           107: 
        !           108:   if (!RIP_IFACE->auth_type != !RIP_IFACE->passwords)
        !           109:     log(L_WARN "Authentication and password options should be used together");
        !           110: 
        !           111:   if (RIP_IFACE->passwords)
        !           112:   {
        !           113:     struct password_item *pass;
        !           114:     WALK_LIST(pass, *RIP_IFACE->passwords)
        !           115:     {
        !           116:       if (pass->alg && (RIP_IFACE->auth_type != RIP_AUTH_CRYPTO))
        !           117:        cf_error("Password algorithm option requires cryptographic authentication");
        !           118: 
        !           119:       /* Set default crypto algorithm (MD5) */
        !           120:       if (!pass->alg && (RIP_IFACE->auth_type == RIP_AUTH_CRYPTO))
        !           121:        pass->alg = ALG_MD5;
        !           122:     }
        !           123:   }
        !           124: 
        !           125:   RIP_CFG->min_timeout_time = MIN_(RIP_CFG->min_timeout_time, RIP_IFACE->timeout_time);
        !           126:   RIP_CFG->max_garbage_time = MAX_(RIP_CFG->max_garbage_time, RIP_IFACE->garbage_time);
        !           127: };
        !           128: 
        !           129: rip_iface_item:
        !           130:    METRIC expr         { RIP_IFACE->metric = $2; if (($2<1) || ($2>255)) cf_error("Metric must be in range 1-255"); }
        !           131:  | MODE MULTICAST      { RIP_IFACE->mode = RIP_IM_MULTICAST; }
        !           132:  | MODE BROADCAST      { RIP_IFACE->mode = RIP_IM_BROADCAST; if (rip_cfg_is_ng()) cf_error("Broadcast not supported in RIPng"); }
        !           133:  | PASSIVE bool                { RIP_IFACE->passive = $2; }
        !           134:  | ADDRESS ipa         { RIP_IFACE->address = $2; }
        !           135:  | PORT expr           { RIP_IFACE->port = $2; if (($2<1) || ($2>65535)) cf_error("Invalid port number"); }
        !           136:  | VERSION expr                { RIP_IFACE->version = $2;
        !           137:                          if (rip_cfg_is_ng()) cf_error("Version not supported in RIPng");
        !           138:                          if (($2 != RIP_V1) && ($2 != RIP_V2)) cf_error("Unsupported version");
        !           139:                        }
        !           140:  | VERSION ONLY bool   { RIP_IFACE->version_only = $3; }
        !           141:  | SPLIT HORIZON bool  { RIP_IFACE->split_horizon = $3; }
        !           142:  | POISON REVERSE bool { RIP_IFACE->poison_reverse = $3; }
        !           143:  | CHECK ZERO bool     { RIP_IFACE->check_zero = $3; }
        !           144:  | UPDATE TIME expr    { RIP_IFACE->update_time = $3; if ($3<=0) cf_error("Update time must be positive"); }
        !           145:  | TIMEOUT TIME expr   { RIP_IFACE->timeout_time = $3; if ($3<=0) cf_error("Timeout time must be positive"); }
        !           146:  | GARBAGE TIME expr   { RIP_IFACE->garbage_time = $3; if ($3<=0) cf_error("Garbage time must be positive"); }
        !           147:  | ECMP WEIGHT expr    { RIP_IFACE->ecmp_weight = $3 - 1; if (($3<1) || ($3>256)) cf_error("ECMP weight must be in range 1-256"); }
        !           148:  | RX BUFFER expr      { RIP_IFACE->rx_buffer = $3; if (($3<256) || ($3>65535)) cf_error("RX length must be in range 256-65535"); }
        !           149:  | TX LENGTH expr      { RIP_IFACE->tx_length = $3; if (($3<256) || ($3>65535)) cf_error("TX length must be in range 256-65535"); }
        !           150:  | TX tos              { RIP_IFACE->tx_tos = $2; }
        !           151:  | TX PRIORITY expr    { RIP_IFACE->tx_priority = $3; }
        !           152:  | TTL SECURITY bool   { RIP_IFACE->ttl_security = $3; }
        !           153:  | TTL SECURITY TX ONLY        { RIP_IFACE->ttl_security = 2; }
        !           154:  | CHECK LINK bool     { RIP_IFACE->check_link = $3; }
        !           155:  | BFD bool            { RIP_IFACE->bfd = $2; cf_check_bfd($2); }
        !           156:  | AUTHENTICATION rip_auth { RIP_IFACE->auth_type = $2; if ($2) rip_check_auth(); }
        !           157:  | password_list       { rip_check_auth(); }
        !           158: ;
        !           159: 
        !           160: rip_auth:
        !           161:    NONE                        { $$ = RIP_AUTH_NONE; }
        !           162:  | PLAINTEXT           { $$ = RIP_AUTH_PLAIN; }
        !           163:  | CRYPTOGRAPHIC       { $$ = RIP_AUTH_CRYPTO; }
        !           164:  | MD5                 { $$ = RIP_AUTH_CRYPTO; }       /* For backward compatibility */
        !           165:  ;
        !           166: 
        !           167: rip_iface_opts:
        !           168:    /* empty */
        !           169:  | rip_iface_opts rip_iface_item ';'
        !           170:  ;
        !           171: 
        !           172: rip_iface_opt_list:
        !           173:    /* empty */
        !           174:  | '{' rip_iface_opts '}'
        !           175:  ;
        !           176: 
        !           177: rip_iface:
        !           178:   rip_iface_start iface_patt_list_nopx rip_iface_opt_list rip_iface_finish;
        !           179: 
        !           180: 
        !           181: CF_ADDTO(dynamic_attr, RIP_METRIC { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_RIP_METRIC); })
        !           182: CF_ADDTO(dynamic_attr, RIP_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_RIP_TAG); })
        !           183: 
        !           184: CF_CLI_HELP(SHOW RIP, ..., [[Show information about RIP protocol]]);
        !           185: 
        !           186: CF_CLI(SHOW RIP INTERFACES, optsym opttext, [<name>] [\"<interface>\"], [[Show information about RIP interfaces]])
        !           187: { rip_show_interfaces(proto_get_named($4, &proto_rip), $5); };
        !           188: 
        !           189: CF_CLI(SHOW RIP NEIGHBORS, optsym opttext, [<name>] [\"<interface>\"], [[Show information about RIP neighbors]])
        !           190: { rip_show_neighbors(proto_get_named($4, &proto_rip), $5); };
        !           191: 
        !           192: 
        !           193: CF_CODE
        !           194: 
        !           195: CF_END

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