diff options
Diffstat (limited to 'conf')
| -rw-r--r-- | conf/cf-lex.l | 114 | ||||
| -rw-r--r-- | conf/conf.c | 5 | ||||
| -rw-r--r-- | conf/conf.h | 25 | ||||
| -rw-r--r-- | conf/confbase.Y | 46 | ||||
| -rw-r--r-- | conf/gen_keywords.m4 | 3 | ||||
| -rw-r--r-- | conf/gen_parser.m4 | 2 |
6 files changed, 136 insertions, 59 deletions
diff --git a/conf/cf-lex.l b/conf/cf-lex.l index ceedee8a..7ce457fe 100644 --- a/conf/cf-lex.l +++ b/conf/cf-lex.l @@ -42,7 +42,7 @@ #define PARSER 1 #include "nest/bird.h" -#include "nest/route.h" +#include "nest/rt.h" #include "nest/protocol.h" #include "filter/filter.h" #include "filter/f-inst.h" @@ -77,19 +77,22 @@ static uint cf_hash(const byte *c); #define SYM_NEXT(n) n->next #define SYM_EQ(a,s1,b,s2) !strcmp(a,b) && s1 == s2 #define SYM_FN(k,s) cf_hash(k) -#define SYM_ORDER 6 /* Initial */ +#define SYM_ORDER 4 /* Initial */ #define SYM_REHASH sym_rehash -#define SYM_PARAMS /8, *1, 2, 2, 6, 20 +#define SYM_PARAMS /8, *1, 2, 2, 4, 20 HASH_DEFINE_REHASH_FN(SYM, struct symbol) HASH(struct keyword) kw_hash; - +HASH(struct ea_class) ea_name_hash; struct sym_scope *conf_this_scope; +static struct sym_scope global_root_scope__init = { .active = 1, }; +struct sym_scope *global_root_scope = &global_root_scope__init; + linpool *cfg_mem; int (*cf_read_hook)(byte *buf, unsigned int max, int fd); @@ -347,7 +350,7 @@ else: { return DDOT; } -[={}:;,.()+*/%<>~\[\]?!\|-] { +[={}:;,.()+*/%<>~\[\]?!\|&-] { return yytext[0]; } @@ -591,41 +594,58 @@ cf_new_symbol(const byte *c) *s = (struct symbol) { .scope = conf_this_scope, .class = SYM_VOID, }; strcpy(s->name, c); - if (!new_config->sym_hash.data) - HASH_INIT(new_config->sym_hash, new_config->pool, SYM_ORDER); + if (!conf_this_scope->hash.data) + HASH_INIT(conf_this_scope->hash, new_config->pool, SYM_ORDER); + + HASH_INSERT2(conf_this_scope->hash, SYM, new_config->pool, s); + + if (conf_this_scope == new_config->root_scope) + add_tail(&(new_config->symbols), &(s->n)); + + return s; +} + +static struct symbol * +cf_root_symbol(const byte *c) +{ + uint l = strlen(c); + if (l > SYM_MAX_LEN) + bug("Root symbol %s too long", c); - HASH_INSERT2(new_config->sym_hash, SYM, new_config->pool, s); + struct symbol *s = mb_alloc(&root_pool, sizeof(struct symbol) + l + 1); + *s = (struct symbol) { .scope = global_root_scope, .class = SYM_VOID, }; + memcpy(s->name, c, l+1); - add_tail(&(new_config->symbols), &(s->n)); + if (!global_root_scope->hash.data) + HASH_INIT(global_root_scope->hash, &root_pool, SYM_ORDER); + HASH_INSERT2(global_root_scope->hash, SYM, &root_pool, s); return s; } + /** - * cf_find_symbol - find a symbol by name - * @cfg: specificed config + * cf_find_symbol_scope - find a symbol by name + * @scope: config scope * @c: symbol name * - * This functions searches the symbol table in the config @cfg for a symbol of - * given name. First it examines the current scope, then the second recent one + * This functions searches the symbol table in the scope @scope for a symbol of + * given name. First it examines the current scope, then the underlying one * and so on until it either finds the symbol and returns a pointer to its * &symbol structure or reaches the end of the scope chain and returns %NULL to * signify no match. */ struct symbol * -cf_find_symbol(const struct config *cfg, const byte *c) +cf_find_symbol_scope(const struct sym_scope *scope, const byte *c) { struct symbol *s; - if (cfg->sym_hash.data && - (s = HASH_FIND(cfg->sym_hash, SYM, c, 1))) - return s; - - /* In CLI command parsing, fallback points to the current config, otherwise it is NULL. */ - if (cfg->fallback && - cfg->fallback->sym_hash.data && - (s = HASH_FIND(cfg->fallback->sym_hash, SYM, c, 1))) - return s; + /* Find the symbol here or anywhere below */ + while (scope) + if (scope->hash.data && (s = HASH_FIND(scope->hash, SYM, c, 1))) + return s; + else + scope = scope->next; return NULL; } @@ -642,7 +662,7 @@ cf_find_symbol(const struct config *cfg, const byte *c) struct symbol * cf_get_symbol(const byte *c) { - return cf_find_symbol(new_config, c) ?: cf_new_symbol(c); + return cf_find_symbol_scope(conf_this_scope, c) ?: cf_new_symbol(c); } /** @@ -693,10 +713,7 @@ cf_lex_symbol(const char *data) struct symbol *sym = cf_get_symbol(data); cf_lval.s = sym; - if (sym->class != SYM_VOID) - return CF_SYM_KNOWN; - - /* Is it a keyword? */ + /* Is it a keyword? Prefer the keyword. */ struct keyword *k = HASH_FIND(kw_hash, KW, data); if (k) { @@ -709,9 +726,11 @@ cf_lex_symbol(const char *data) } } - /* OK, undefined symbol */ - cf_lval.s = sym; - return CF_SYM_UNDEFINED; + /* OK, only a symbol. */ + if (sym->class == SYM_VOID) + return CF_SYM_UNDEFINED; + else + return CF_SYM_KNOWN; } static void @@ -724,6 +743,34 @@ cf_lex_init_kh(void) HASH_INSERT(kw_hash, KW, k); } +void +ea_lex_register(struct ea_class *def) +{ + struct symbol *sym = cf_root_symbol(def->name); + sym->class = SYM_ATTRIBUTE; + sym->attribute = def; + def->sym = sym; +} + +void +ea_lex_unregister(struct ea_class *def) +{ + struct symbol *sym = def->sym; + HASH_REMOVE2(global_root_scope->hash, SYM, &root_pool, sym); + mb_free(sym); + def->sym = NULL; +} + +struct ea_class * +ea_class_find_by_name(const char *name) +{ + struct symbol *sym = cf_find_symbol(global_root_scope, name); + if (!sym || (sym->class != SYM_ATTRIBUTE)) + return NULL; + else + return sym->attribute; +} + /** * cf_lex_init - initialize the lexer * @is_cli: true if we're going to parse CLI command, false for configuration @@ -757,6 +804,11 @@ cf_lex_init(int is_cli, struct config *c) c->root_scope = cfg_allocz(sizeof(struct sym_scope)); conf_this_scope = c->root_scope; conf_this_scope->active = 1; + + if (is_cli) + conf_this_scope->next = config->root_scope; + else + conf_this_scope->next = global_root_scope; } /** diff --git a/conf/conf.c b/conf/conf.c index 4e31de29..fc8e3c46 100644 --- a/conf/conf.c +++ b/conf/conf.c @@ -46,7 +46,7 @@ #undef LOCAL_DEBUG #include "nest/bird.h" -#include "nest/route.h" +#include "nest/rt.h" #include "nest/protocol.h" #include "nest/iface.h" #include "lib/resource.h" @@ -170,7 +170,6 @@ int cli_parse(struct config *c) { int done = 0; - c->fallback = config; new_config = c; cfg_mem = c->mem; if (setjmp(conf_jmpbuf)) @@ -181,7 +180,6 @@ cli_parse(struct config *c) done = 1; cleanup: - c->fallback = NULL; new_config = NULL; cfg_mem = NULL; return done; @@ -543,7 +541,6 @@ order_shutdown(int gr) init_list(&c->tables); init_list(&c->symbols); memset(c->def_tables, 0, sizeof(c->def_tables)); - HASH_INIT(c->sym_hash, c->pool, 4); c->shutdown = 1; c->gr_down = gr; diff --git a/conf/conf.h b/conf/conf.h index b409750e..b30914c1 100644 --- a/conf/conf.h +++ b/conf/conf.h @@ -16,7 +16,6 @@ #include "lib/timer.h" /* Configuration structure */ - struct config { pool *pool; /* Pool the configuration is stored in */ linpool *mem; /* Linear pool containing configuration data */ @@ -28,13 +27,14 @@ struct config { int mrtdump_file; /* Configured MRTDump file (sysdep, fd in unix) */ const char *syslog_name; /* Name used for syslog (NULL -> no syslog) */ - struct rtable_config *def_tables[NET_MAX]; /* Default routing tables for each network */ + struct symbol *def_tables[NET_MAX]; /* Default routing tables for each network */ struct iface_patt *router_id_from; /* Configured list of router ID iface patterns */ u32 router_id; /* Our Router ID */ u32 proto_default_debug; /* Default protocol debug mask */ u32 proto_default_mrtdump; /* Default protocol mrtdump mask */ u32 channel_default_debug; /* Default channel debug mask */ + u16 filter_vstk, filter_estk; /* Filter stack depth */ struct timeformat tf_route; /* Time format for 'show route' */ struct timeformat tf_proto; /* Time format for 'show protocol' */ struct timeformat tf_log; /* Time format for the logfile */ @@ -44,6 +44,7 @@ struct config { int cli_debug; /* Tracing of CLI connections and commands */ int latency_debug; /* I/O loop tracks duration of each event */ + int table_debug; /* Track route propagation through tables */ u32 latency_limit; /* Events with longer duration are logged (us) */ u32 watchdog_warning; /* I/O loop watchdog limit for warning (us) */ u32 watchdog_timeout; /* Watchdog timeout (in seconds, 0 = disabled) */ @@ -53,8 +54,8 @@ struct config { char *err_file_name; /* File name containing error */ char *file_name; /* Name of main configuration file */ int file_fd; /* File descriptor of main configuration file */ - HASH(struct symbol) sym_hash; /* Lexer: symbol hash table */ - struct config *fallback; /* Link to regular config for CLI parsing */ + int thread_count; /* How many worker threads to prefork */ + struct sym_scope *root_scope; /* Scope for root symbols */ int obstacle_count; /* Number of items blocking freeing of this config */ int shutdown; /* This is a pseudo-config for daemon shutdown */ @@ -122,7 +123,7 @@ struct symbol { const struct f_line *function; /* For SYM_FUNCTION */ const struct filter *filter; /* For SYM_FILTER */ struct rtable_config *table; /* For SYM_TABLE */ - struct f_dynamic_attr *attribute; /* For SYM_ATTRIBUTE */ + struct ea_class *attribute; /* For SYM_ATTRIBUTE */ struct f_val *val; /* For SYM_CONSTANT */ uint offset; /* For SYM_VARIABLE */ }; @@ -133,12 +134,17 @@ struct symbol { struct sym_scope { struct sym_scope *next; /* Next on scope stack */ struct symbol *name; /* Name of this scope */ + + HASH(struct symbol) hash; /* Local symbol hash */ + uint slots; /* Variable slots */ byte active; /* Currently entered */ byte block; /* No independent stack frame */ byte soft_scopes; /* Number of soft scopes above */ }; +extern struct sym_scope *global_root_scope; + struct bytestring { size_t length; byte data[]; @@ -187,7 +193,14 @@ int cf_lex(void); void cf_lex_init(int is_cli, struct config *c); void cf_lex_unwind(void); -struct symbol *cf_find_symbol(const struct config *cfg, const byte *c); +struct symbol *cf_find_symbol_scope(const struct sym_scope *scope, const byte *c); +static inline struct symbol *cf_find_symbol_cfg(const struct config *cfg, const byte *c) +{ return cf_find_symbol_scope(cfg->root_scope, c); } + +#define cf_find_symbol(where, what) _Generic(*(where), \ + struct config: cf_find_symbol_cfg, \ + struct sym_scope: cf_find_symbol_scope \ + )((where), (what)) struct symbol *cf_get_symbol(const byte *c); struct symbol *cf_default_name(char *template, int *counter); diff --git a/conf/confbase.Y b/conf/confbase.Y index 1d5738ff..8e5da9e3 100644 --- a/conf/confbase.Y +++ b/conf/confbase.Y @@ -14,11 +14,12 @@ CF_HDR #include "conf/conf.h" #include "lib/resource.h" #include "lib/socket.h" +#include "lib/settle.h" #include "lib/timer.h" #include "lib/string.h" #include "nest/protocol.h" #include "nest/iface.h" -#include "nest/route.h" +#include "nest/rt.h" #include "nest/bfd.h" #include "nest/cli.h" #include "filter/filter.h" @@ -71,8 +72,9 @@ CF_DECLS } xp; enum filter_return fret; enum ec_subtype ecs; - struct f_dynamic_attr fda; + struct ea_class *ea_class; struct f_static_attr fsa; + struct f_attr_bit fab; struct f_lval flv; struct f_line *fl; struct f_arg *fa; @@ -92,7 +94,8 @@ CF_DECLS struct proto_spec ps; struct channel_limit cl; struct timeformat *tf; - mpls_label_stack *mls; + struct settle_config settle; + struct adata *ad; struct bytestring *bs; } @@ -110,17 +113,19 @@ CF_DECLS %type <i> expr bool pxlen4 %type <time> expr_us time +%type <settle> settle %type <a> ipa %type <net> net_ip4_ net_ip4 net_ip6_ net_ip6 net_ip_ net_ip net_or_ipa %type <net_ptr> net_ net_any net_vpn4_ net_vpn6_ net_vpn_ net_roa4_ net_roa6_ net_roa_ net_ip6_sadr_ net_mpls_ -%type <mls> label_stack_start label_stack +%type <ad> label_stack_start label_stack %type <t> text opttext -%type <s> symbol +%type <s> symbol symbol_known toksym %nonassoc PREFIX_DUMMY %left AND OR %nonassoc '=' '<' '>' '~' GEQ LEQ NEQ NMA PO PC +%left '|' '&' %left '+' '-' %left '*' '/' '%' %left '!' @@ -152,16 +157,16 @@ conf: definition ; definition: DEFINE symbol '=' term ';' { - struct f_val *val = cfg_allocz(sizeof(struct f_val)); - if (f_eval(f_linearize($4, 1), cfg_mem, val) > F_RETURN) cf_error("Runtime error"); - cf_define_symbol($2, SYM_CONSTANT | val->type, val, val); + struct f_val val; + if (f_eval(f_linearize($4, 1), &val) > F_RETURN) cf_error("Runtime error"); + cf_define_symbol($2, SYM_CONSTANT | val.type, val, lp_val_copy(cfg_mem, &val)); } ; expr: NUM | '(' term ')' { $$ = f_eval_int(f_linearize($2, 1)); } - | CF_SYM_KNOWN { + | symbol_known { if ($1->class != (SYM_CONSTANT | T_INT)) cf_error("Number constant expected"); $$ = SYM_VAL($1).i; } ; @@ -172,7 +177,9 @@ expr_us: | expr US { $$ = $1 US_; } ; -symbol: CF_SYM_UNDEFINED | CF_SYM_KNOWN ; +toksym: FROM | PREFERENCE ; +symbol: CF_SYM_UNDEFINED | CF_SYM_KNOWN | toksym ; +symbol_known: CF_SYM_KNOWN | toksym ; /* Switches */ @@ -357,17 +364,19 @@ net_or_ipa: label_stack_start: NUM { - $$ = cfg_allocz(sizeof(mpls_label_stack)); - $$->len = 1; - $$->stack[0] = $1; + $$ = cfg_allocz(ADATA_SIZE(MPLS_MAX_LABEL_STACK * sizeof(u32))); + $$->length = sizeof(u32); + *((u32 *)$$->data) = $1; }; label_stack: label_stack_start | label_stack '/' NUM { - if ($1->len >= MPLS_MAX_LABEL_STACK) + if ($1->length >= MPLS_MAX_LABEL_STACK * sizeof(u32)) cf_error("Too many labels in stack"); - $1->stack[$1->len++] = $3; + + *((u32 *)($$->data + $1->length)) = $3; + $1->length += sizeof(u32); $$ = $1; } ; @@ -380,6 +389,13 @@ time: } ; +/* Settle timer configuration */ +settle: expr_us expr_us { + if ($1 > $2) cf_error("Minimum settle time %t is bigger than maximum settle time %t", $1, $2); + $$.min = $1; + $$.max = $2; +}; + text: TEXT | CF_SYM_KNOWN { diff --git a/conf/gen_keywords.m4 b/conf/gen_keywords.m4 index 0c1dc545..53226e4d 100644 --- a/conf/gen_keywords.m4 +++ b/conf/gen_keywords.m4 @@ -26,8 +26,7 @@ m4_define(CF_DEFINES, `m4_divert(-1)') m4_define(CF_handle_kw, `m4_divert(1){ "m4_translit($1,[[A-Z]],[[a-z]])", $1, NULL }, m4_divert(-1)') m4_define(CF_keywd, `m4_ifdef([[CF_tok_$1]],,[[m4_define([[CF_tok_$1]],1)CF_handle_kw($1)]])') -m4_define(CF_KEYWORDS, `m4_define([[CF_toks]],[[]])CF_iterate([[CF_keywd]], [[$@]])m4_ifelse(CF_toks,,,%token[[]]CF_toks -)DNL') +m4_define(CF_KEYWORDS, `CF_iterate([[CF_keywd]], [[$@]])DNL') # CLI commands generate keywords as well m4_define(CF_CLI, `CF_KEYWORDS(m4_translit($1, [[ ]], [[,]])) diff --git a/conf/gen_parser.m4 b/conf/gen_parser.m4 index 5b378a93..af4b1455 100644 --- a/conf/gen_parser.m4 +++ b/conf/gen_parser.m4 @@ -31,7 +31,7 @@ m4_define(CF_iterate, `m4_define([[CF_iter]], m4_defn([[$1]]))CF_itera($2)') # Keywords act as untyped %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<s>[[]]CF_toks )DNL') # CLI commands |