diff --git a/conf/cf-lex.l b/conf/cf-lex.l index 0a02dd73..9555949d 100644 --- a/conf/cf-lex.l +++ b/conf/cf-lex.l @@ -601,6 +601,10 @@ cf_new_symbol(const byte *c) return s; } +struct symbol * +cf_symbol_from_keyword(const struct keyword *kw) +{ return cf_new_symbol(kw->name); } + /** * cf_find_local_symbol - find a symbol by name * @cfg: specificed config @@ -692,18 +696,23 @@ static enum yytokentype cf_lex_symbol(const char *data) { /* Have we defined such a symbol? */ - struct symbol *sym = cf_get_symbol(data); - cf_lval.s = sym; + struct symbol *sym = cf_find_local_symbol(new_config, conf_this_scope, data); - if (sym->class != SYM_VOID) + if (sym && (sym->class != SYM_VOID)) + { + cf_lval.s = sym; return CF_SYM_KNOWN; + } /* Is it a keyword? */ struct keyword *k = HASH_FIND(kw_hash, KW, data); if (k) { if (k->value > 0) + { + cf_lval.kw = k; return k->value; + } else { cf_lval.i = -k->value; @@ -712,7 +721,7 @@ cf_lex_symbol(const char *data) } /* OK, undefined symbol */ - cf_lval.s = sym; + cf_lval.s = cf_new_symbol(data); return CF_SYM_UNDEFINED; } diff --git a/conf/conf.h b/conf/conf.h index cb47e7d0..d40f955e 100644 --- a/conf/conf.h +++ b/conf/conf.h @@ -191,6 +191,9 @@ struct symbol *cf_find_local_symbol(const struct config *cfg, const struct sym_s static inline struct symbol *cf_find_symbol(const struct config *cfg, const byte *c) { return cf_find_local_symbol(cfg, cfg->root_scope, c); } +struct keyword; +struct symbol *cf_symbol_from_keyword(const struct keyword *kw); + struct symbol *cf_get_symbol(const byte *c); struct symbol *cf_default_name(char *template, int *counter); struct symbol *cf_localize_symbol(struct symbol *sym); diff --git a/conf/confbase.Y b/conf/confbase.Y index 1d5738ff..3e8f5807 100644 --- a/conf/confbase.Y +++ b/conf/confbase.Y @@ -61,6 +61,7 @@ CF_DECLS net_addr net; net_addr *net_ptr; struct symbol *s; + struct keyword *kw; const char *t; struct rtable_config *r; struct channel_config *cc; @@ -117,6 +118,7 @@ CF_DECLS %type text opttext %type symbol +%type kw_sym %nonassoc PREFIX_DUMMY %left AND OR @@ -172,7 +174,7 @@ expr_us: | expr US { $$ = $1 US_; } ; -symbol: CF_SYM_UNDEFINED | CF_SYM_KNOWN ; +symbol: CF_SYM_UNDEFINED | CF_SYM_KNOWN | kw_sym { $$ = cf_symbol_from_keyword($1); } ; /* Switches */ diff --git a/conf/gen_parser.m4 b/conf/gen_parser.m4 index af4b1455..7a2a9de4 100644 --- a/conf/gen_parser.m4 +++ b/conf/gen_parser.m4 @@ -29,9 +29,9 @@ m4_define(CF_END, `m4_divert(-1)') m4_define(CF_itera, `m4_ifelse($#, 1, [[CF_iter($1)]], [[CF_iter($1)[[]]CF_itera(m4_shift($@))]])') m4_define(CF_iterate, `m4_define([[CF_iter]], m4_defn([[$1]]))CF_itera($2)') -# Keywords act as untyped %token +# Keywords act as %token m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)m4_define([[CF_toks]],CF_toks $1)]])') -m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks +m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks )DNL') # CLI commands diff --git a/nest/config.Y b/nest/config.Y index e78350ca..c83c715b 100644 --- a/nest/config.Y +++ b/nest/config.Y @@ -154,6 +154,8 @@ CF_ENUM_PX(T_ENUM_AF, AF_, AFI_, IPV4, IPV6) CF_GRAMMAR +kw_sym: MIN MAX ; + /* Setting of router ID */ conf: rtrid ; diff --git a/proto/bgp/config.Y b/proto/bgp/config.Y index 013d14af..218e0d04 100644 --- a/proto/bgp/config.Y +++ b/proto/bgp/config.Y @@ -46,7 +46,7 @@ CF_KEYWORDS(CEASE, PREFIX, LIMIT, HIT, ADMINISTRATIVE, SHUTDOWN, RESET, PEER, CF_GRAMMAR /* Workaround for collisions between keywords and symbols */ -symbol: ROLE | PEER | PROVIDER | CUSTOMER | RS_SERVER | RS_CLIENT ; +kw_sym: ROLE | PEER | PROVIDER | CUSTOMER | RS_SERVER | RS_CLIENT ; proto: bgp_proto '}' ;