diff options
54 files changed, 1052 insertions, 874 deletions
diff --git a/conf/cf-lex.l b/conf/cf-lex.l index bd424c69..e84e1d9d 100644 --- a/conf/cf-lex.l +++ b/conf/cf-lex.l @@ -86,9 +86,12 @@ static uint cf_hash(const byte *c); 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; -struct sym_scope *global_root_scope; + +static struct sym_scope global_root_scope__init = { .active = 1, }; +struct sym_scope *global_root_scope = &global_root_scope__init; linpool *cfg_mem; @@ -598,6 +601,25 @@ cf_new_symbol(const byte *c) 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); + + 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); + + 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_scope - find a symbol by name * @scope: config scope @@ -652,7 +674,7 @@ cf_localize_symbol(struct symbol *sym) /* If the symbol type is void, it has been recently allocated just in this scope. */ if (!sym->class) return sym; - + /* If the scope is the current, it is already defined in this scope. */ if (sym->scope == conf_this_scope) cf_error("Symbol already defined"); @@ -716,8 +738,34 @@ cf_lex_init_kh(void) struct keyword *k; for (k=keyword_list; k->name; k++) 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; +} - global_root_scope = mb_allocz(&root_pool, sizeof(*global_root_scope)); +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; } /** diff --git a/conf/conf.h b/conf/conf.h index 22f6c557..4ccaa54e 100644 --- a/conf/conf.h +++ b/conf/conf.h @@ -121,7 +121,7 @@ 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 */ }; diff --git a/conf/confbase.Y b/conf/confbase.Y index a81560dc..2286b257 100644 --- a/conf/confbase.Y +++ b/conf/confbase.Y @@ -71,8 +71,9 @@ 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; const struct filter *f; diff --git a/filter/config.Y b/filter/config.Y index 92656f7c..f21f1c8e 100644 --- a/filter/config.Y +++ b/filter/config.Y @@ -22,6 +22,13 @@ static inline u32 pair_b(u32 p) { return p & 0xFFFF; } #define f_generate_complex(fi_code, da, arg) \ f_new_inst(FI_EA_SET, f_new_inst(fi_code, f_new_inst(FI_EA_GET, da), arg), da) +#define f_generate_complex_sym(fi_code, sym, arg) ({ \ + if (sym->class != SYM_ATTRIBUTE) \ + cf_error("Can't empty %s: not an attribute", sym->name); \ + f_generate_complex(fi_code, sym->attribute, arg); \ +}) + + /* * Sets and their items are during parsing handled as lists, linked * through left ptr. The first item in a list also contains a pointer @@ -161,27 +168,31 @@ f_new_lc_item(u32 f1, u32 t1, u32 f2, u32 t2, u32 f3, u32 t3) } static inline struct f_inst * -f_generate_empty(struct f_dynamic_attr dyn) +f_generate_empty(const struct symbol *sym) { - const struct f_val *empty = f_get_empty(dyn.type); + if (sym->class != SYM_ATTRIBUTE) + cf_error("Can't empty %s: not an attribute", sym->name); + + const struct ea_class *def = sym->attribute; + const struct f_val *empty = f_get_empty(def->type); if (!empty) - cf_error("Can't empty that attribute"); + cf_error("Can't empty attribute %s", def->name); - return f_new_inst(FI_EA_SET, f_new_inst(FI_CONSTANT, *empty), dyn); + return f_new_inst(FI_EA_SET, f_new_inst(FI_CONSTANT, *empty), def); } -#define BA_AS_PATH 0x02 - static inline struct f_inst * f_implicit_roa_check(struct rtable_config *tab) { - struct f_dynamic_attr fda = f_new_dynamic_attr(T_PATH, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + const struct ea_class *def = ea_class_find("bgp_path"); + if (!def) + cf_error("Fatal: Couldn't find BGP path attribute definition."); struct f_static_attr fsa = f_new_static_attr(T_NET, SA_NET, 1); return f_new_inst(FI_ROA_CHECK, f_new_inst(FI_RTA_GET, fsa), - f_new_inst(FI_AS_PATH_LAST, f_new_inst(FI_EA_GET, fda)), + f_new_inst(FI_AS_PATH_LAST, f_new_inst(FI_EA_GET, def)), tab); } @@ -293,8 +304,8 @@ CF_KEYWORDS(FUNCTION, PRINT, PRINTN, UNSET, RETURN, %type <xp> cmds_int cmd_prep %type <x> term block cmd cmds constant constructor print_list var_list function_call symbol_value bgp_path_expr bgp_path bgp_path_tail -%type <fda> dynamic_attr attr_bit %type <fsa> static_attr +%type <fab> attr_bit %type <f> filter where_filter %type <fl> filter_body function_body %type <flv> lvalue @@ -335,7 +346,14 @@ filter_eval: conf: custom_attr ; custom_attr: ATTRIBUTE type symbol ';' { - cf_define_symbol($3, SYM_ATTRIBUTE, attribute, ca_lookup(new_config->pool, $3->name, $2)->fda); + if (($3->class == SYM_ATTRIBUTE) && ($3->scope == new_config->root_scope)) + cf_error("Duplicate attribute %s definition", $3->name); + + cf_define_symbol($3, SYM_ATTRIBUTE, attribute, + ea_register_alloc(new_config->pool, (struct ea_class) { + .name = $3->name, + .type = $2, + })->class); }; conf: bt_test_suite ; @@ -736,7 +754,7 @@ symbol_value: CF_SYM_KNOWN $$ = f_new_inst(FI_VAR_GET, $1); break; case SYM_ATTRIBUTE: - $$ = f_new_inst(FI_EA_GET, *$1->attribute); + $$ = f_new_inst(FI_EA_GET, $1->attribute); break; default: cf_error("Can't get value of symbol %s", $1->name); @@ -785,11 +803,9 @@ term: | constructor { $$ = $1; } | static_attr { $$ = f_new_inst(FI_RTA_GET, $1); } - - | dynamic_attr { $$ = f_new_inst(FI_EA_GET, $1); } | attr_bit { struct f_inst *c = f_new_inst(FI_CONSTANT, (struct f_val) { .type = T_INT, .val.i = (1U << $1.bit)}); - $$ = f_new_inst(FI_EQ, c, f_new_inst(FI_BITAND, f_new_inst(FI_EA_GET, $1), c)); + $$ = f_new_inst(FI_EQ, c, f_new_inst(FI_BITAND, f_new_inst(FI_EA_GET, $1.class), c)); } | term '.' IS_V4 { $$ = f_new_inst(FI_IS_V4, $1); } @@ -833,8 +849,6 @@ term: | FORMAT '(' term ')' { $$ = f_new_inst(FI_FORMAT, $3); } -/* | term '.' LEN { $$->code = P('P','l'); } */ - | function_call ; @@ -867,7 +881,9 @@ cmd: $$ = f_new_inst(FI_VAR_SET, $3, $1); break; case SYM_ATTRIBUTE: - $$ = f_new_inst(FI_EA_SET, $3, *$1->attribute); + if ($1->attribute->readonly) + cf_error("Attribute %s is read-only", $1->attribute->name); + $$ = f_new_inst(FI_EA_SET, $3, $1->attribute); break; default: cf_error("Can't assign to symbol %s", $1->name); @@ -877,22 +893,23 @@ cmd: DBG( "Ook, we'll return the value\n" ); $$ = f_new_inst(FI_RETURN, $2); } - | dynamic_attr '=' term ';' { - $$ = f_new_inst(FI_EA_SET, $3, $1); - } | static_attr '=' term ';' { if ($1.readonly) cf_error( "This static attribute is read-only."); $$ = f_new_inst(FI_RTA_SET, $3, $1); } - | UNSET '(' dynamic_attr ')' ';' { - $$ = f_new_inst(FI_EA_UNSET, $3); + | UNSET '(' CF_SYM_KNOWN ')' ';' { + if ($3->class != SYM_ATTRIBUTE) + cf_error("Can't unset %s", $3->name); + if ($3->attribute->readonly) + cf_error("Attribute %s is read-only", $3->attribute->name); + $$ = f_new_inst(FI_EA_UNSET, $3->attribute); } | attr_bit '=' term ';' { $$ = f_new_inst(FI_CONDITION, $3, - f_generate_complex(FI_BITOR, $1, + f_generate_complex(FI_BITOR, $1.class, f_new_inst(FI_CONSTANT, (struct f_val) { .type = T_INT, .val.i = (1U << $1.bit)})), - f_generate_complex(FI_BITAND, $1, + f_generate_complex(FI_BITAND, $1.class, f_new_inst(FI_CONSTANT, (struct f_val) { .type = T_INT, .val.i = ~(1U << $1.bit)})) ); } @@ -919,11 +936,11 @@ cmd: $$ = f_new_inst(FI_SWITCH, $2, build_tree($4)); } - | dynamic_attr '.' EMPTY ';' { $$ = f_generate_empty($1); } - | dynamic_attr '.' PREPEND '(' term ')' ';' { $$ = f_generate_complex( FI_PATH_PREPEND, $1, $5 ); } - | dynamic_attr '.' ADD '(' term ')' ';' { $$ = f_generate_complex( FI_CLIST_ADD, $1, $5 ); } - | dynamic_attr '.' DELETE '(' term ')' ';' { $$ = f_generate_complex( FI_CLIST_DEL, $1, $5 ); } - | dynamic_attr '.' FILTER '(' term ')' ';' { $$ = f_generate_complex( FI_CLIST_FILTER, $1, $5 ); } + | CF_SYM_KNOWN '.' EMPTY ';' { $$ = f_generate_empty($1); } + | CF_SYM_KNOWN '.' PREPEND '(' term ')' ';' { $$ = f_generate_complex_sym( FI_PATH_PREPEND, $1, $5 ); } + | CF_SYM_KNOWN '.' ADD '(' term ')' ';' { $$ = f_generate_complex_sym( FI_CLIST_ADD, $1, $5 ); } + | CF_SYM_KNOWN '.' DELETE '(' term ')' ';' { $$ = f_generate_complex_sym( FI_CLIST_DEL, $1, $5 ); } + | CF_SYM_KNOWN '.' FILTER '(' term ')' ';' { $$ = f_generate_complex_sym( FI_CLIST_FILTER, $1, $5 ); } | BT_ASSERT '(' get_cf_position term get_cf_position ')' ';' { $$ = assert_done($4, $3 + 1, $5 - 1); } | BT_CHECK_ASSIGN '(' get_cf_position lvalue get_cf_position ',' term ')' ';' { $$ = assert_assign(&$4, $7, $3 + 1, $5 - 1); } ; @@ -934,8 +951,17 @@ get_cf_position: }; lvalue: - CF_SYM_KNOWN { cf_assert_symbol($1, SYM_VARIABLE); $$ = (struct f_lval) { .type = F_LVAL_VARIABLE, .sym = $1 }; } + CF_SYM_KNOWN { + switch ($1->class) { + case SYM_VARIABLE_RANGE: + $$ = (struct f_lval) { .type = F_LVAL_VARIABLE, .sym = $1 }; + break; + case SYM_ATTRIBUTE: + $$ = (struct f_lval) { .type = F_LVAL_EA, .da = $1->attribute }; + break; + } + } | static_attr { $$ = (struct f_lval) { .type = F_LVAL_SA, .sa = $1 }; } - | dynamic_attr { $$ = (struct f_lval) { .type = F_LVAL_EA, .da = $1 }; }; + ; CF_END diff --git a/filter/data.h b/filter/data.h index cba47d6a..4d2622ab 100644 --- a/filter/data.h +++ b/filter/data.h @@ -21,13 +21,6 @@ struct f_val { #define fputip(a) ({ ip_addr *ax = falloc(sizeof(*ax)); *ax = (a); ax; }) -/* Dynamic attribute definition (eattrs) */ -struct f_dynamic_attr { - btype type; /* EA type (EAF_*) */ - u8 bit; /* For bitfield accessors */ - uint ea_code; /* EA code */ -}; - enum f_sa_code { SA_FROM = 1, SA_GW, @@ -53,7 +46,6 @@ struct f_static_attr { /* Filter l-value type */ enum f_lval_type { F_LVAL_VARIABLE, - F_LVAL_PREFERENCE, F_LVAL_SA, F_LVAL_EA, }; @@ -63,7 +55,7 @@ struct f_lval { enum f_lval_type type; union { struct symbol *sym; - struct f_dynamic_attr da; + const struct ea_class *da; struct f_static_attr sa; }; }; diff --git a/filter/decl.m4 b/filter/decl.m4 index 2e4fb235..c59cd7f3 100644 --- a/filter/decl.m4 +++ b/filter/decl.m4 @@ -94,7 +94,7 @@ FID_DUMP_BODY()m4_dnl debug("%s" $4 "\n", INDENT, $5); ]]) FID_INTERPRET_EXEC()m4_dnl -const $1 $2 = whati->$2 +$1 $2 = whati->$2 FID_INTERPRET_BODY') # Instruction arguments are needed only until linearization is done. @@ -256,7 +256,7 @@ FID_INTERPRET_BODY()') m4_define(SYMBOL, `FID_MEMBER(struct symbol *, sym, [[strcmp(f1->sym->name, f2->sym->name) || (f1->sym->class != f2->sym->class)]], "symbol %s", item->sym->name)') m4_define(RTC, `FID_MEMBER(struct rtable_config *, rtc, [[strcmp(f1->rtc->name, f2->rtc->name)]], "route table %s", item->rtc->name)') m4_define(STATIC_ATTR, `FID_MEMBER(struct f_static_attr, sa, f1->sa.sa_code != f2->sa.sa_code,,)') -m4_define(DYNAMIC_ATTR, `FID_MEMBER(struct f_dynamic_attr, da, f1->da.ea_code != f2->da.ea_code,,)') +m4_define(DYNAMIC_ATTR, `FID_MEMBER(const struct ea_class *, da, f1->da != f2->da,,)') m4_define(ACCESS_RTE, `FID_HIC(,[[do { if (!fs->rte) runtime("No route to access"); } while (0)]],NEVER_CONSTANT())') # 2) Code wrapping diff --git a/filter/f-inst.c b/filter/f-inst.c index 73a57473..5d78c98e 100644 --- a/filter/f-inst.c +++ b/filter/f-inst.c @@ -662,14 +662,14 @@ DYNAMIC_ATTR; ACCESS_RTE; ACCESS_EATTRS; - RESULT_TYPE(da.type); + RESULT_TYPE(da->type); { const struct f_val *empty; - eattr *e = ea_find(*fs->eattrs, da.ea_code); + const eattr *e = ea_find(*fs->eattrs, da->id); if (e) { - ASSERT_DIE(e->type == da.type); + ASSERT_DIE(e->type == da->type); switch (e->type) { case T_IP: @@ -682,7 +682,7 @@ }]]); } } - else if (empty = f_get_empty(da.type)) + else if (empty = f_get_empty(da->type)) RESULT_VAL(*empty); else RESULT_VOID; @@ -694,16 +694,16 @@ ACCESS_EATTRS; ARG_ANY(1); DYNAMIC_ATTR; - ARG_TYPE(1, da.type); + ARG_TYPE(1, da->type); { struct eattr *a; - if (da.type >= EAF_TYPE__MAX) + if (da->type >= EAF_TYPE__MAX) bug("Unsupported attribute type"); f_rta_cow(fs); - switch (da.type) { + switch (da->type) { case T_OPAQUE: case T_IFACE: runtime( "Setting opaque attribute is not allowed" ); @@ -711,12 +711,12 @@ case T_IP: a = ea_set_attr(fs->eattrs, - EA_LITERAL_STORE_ADATA(da.ea_code, da.type, 0, &v1.val.ip, sizeof(ip_addr))); + EA_LITERAL_STORE_ADATA(da, 0, &v1.val.ip, sizeof(ip_addr))); break; default: a = ea_set_attr(fs->eattrs, - EA_LITERAL_GENERIC(da.ea_code, da.type, 0, .u = v1.val.bval)); + EA_LITERAL_GENERIC(da->id, da->type, 0, .u = v1.val.bval)); break; } @@ -731,7 +731,7 @@ ACCESS_EATTRS; f_rta_cow(fs); - ea_unset_attr(fs->eattrs, 1, da.ea_code); + ea_unset_attr(fs->eattrs, 1, da); } INST(FI_LENGTH, 1, 1) { /* Get length of */ diff --git a/filter/f-inst.h b/filter/f-inst.h index 32da4653..047a66c9 100644 --- a/filter/f-inst.h +++ b/filter/f-inst.h @@ -87,15 +87,17 @@ void f_add_lines(const struct f_line_item *what, struct filter_iterator *fit); struct filter *f_new_where(struct f_inst *); -static inline struct f_dynamic_attr f_new_dynamic_attr(u8 type, uint code) -{ return (struct f_dynamic_attr) { .type = type, .ea_code = code }; } -static inline struct f_dynamic_attr f_new_dynamic_attr_bit(u8 bit, uint code) -{ return (struct f_dynamic_attr) { .type = T_INT, .bit = bit, .ea_code = code }; } static inline struct f_static_attr f_new_static_attr(btype type, int code, int readonly) { return (struct f_static_attr) { .type = type, .sa_code = code, .readonly = readonly }; } -struct f_inst *f_generate_complex(enum f_instruction_code fi_code, struct f_dynamic_attr da, struct f_inst *argument); struct f_inst *f_generate_roa_check(struct rtable_config *table, struct f_inst *prefix, struct f_inst *asn); +struct f_attr_bit { + const struct ea_class *class; + uint bit; +}; + +#define f_new_dynamic_attr_bit(_bit, _name) ((struct f_attr_bit) { .bit = _bit, .class = ea_class_find(_name) }) + /* Hook for call bt_assert() function in configuration */ extern void (*bt_assert_hook)(int result, const struct f_line_item *assert); diff --git a/filter/f-util.c b/filter/f-util.c index 83ae01f6..fb93ee80 100644 --- a/filter/f-util.c +++ b/filter/f-util.c @@ -2,7 +2,7 @@ * Filters: utility functions * * Copyright 1998 Pavel Machek <pavel@ucw.cz> - * 2017 Jan Maria Matejka <mq@ucw.cz> + * 2017 Maria Matejka <mq@ucw.cz> * * Can be freely distributed and used under the terms of the GNU GPL. */ @@ -40,129 +40,3 @@ struct filter *f_new_where(struct f_inst *where) f->root = f_linearize(cond); return f; } - -#define CA_KEY(n) n->name, n->fda.type -#define CA_NEXT(n) n->next -#define CA_EQ(na,ta,nb,tb) (!strcmp(na,nb) && (ta == tb)) -#define CA_FN(n,t) (mem_hash(n, strlen(n)) ^ (t*0xaae99453U)) -#define CA_ORDER 8 /* Fixed */ - -struct ca_storage { - struct ca_storage *next; - struct f_dynamic_attr fda; - u32 uc; - char name[0]; -}; - -HASH(struct ca_storage) ca_hash; - -static struct idm ca_idm; -static struct ca_storage **ca_storage; -static uint ca_storage_max; - -static void -ca_free(resource *r) -{ - struct custom_attribute *ca = (void *) r; - struct ca_storage *cas = HASH_FIND(ca_hash, CA, ca->name, ca->fda->type); - ASSERT(cas); - - ca->name = NULL; - ca->fda = NULL; - if (!--cas->uc) { - uint id = EA_CUSTOM_ID(cas->fda.ea_code); - idm_free(&ca_idm, id); - HASH_REMOVE(ca_hash, CA, cas); - ca_storage[id] = NULL; - mb_free(cas); - } -} - -static void -ca_dump(resource *r) -{ - struct custom_attribute *ca = (void *) r; - debug("name \"%s\" id 0x%04x ea_type 0x%02x\n", - ca->name, ca->fda->ea_code, ca->fda->type); -} - -static struct resclass ca_class = { - .name = "Custom attribute", - .size = sizeof(struct custom_attribute), - .free = ca_free, - .dump = ca_dump, - .lookup = NULL, - .memsize = NULL, -}; - -struct custom_attribute * -ca_lookup(pool *p, const char *name, btype type) -{ - switch (type) { - case T_INT: - case T_IP: - case T_QUAD: - case T_PATH: - case T_CLIST: - case T_ECLIST: - case T_LCLIST: - break; - default: - cf_error("Custom route attribute of unsupported type"); - } - - static int inited = 0; - if (!inited) { - idm_init(&ca_idm, &root_pool, 8); - HASH_INIT(ca_hash, &root_pool, CA_ORDER); - - ca_storage_max = 256; - ca_storage = mb_allocz(&root_pool, sizeof(struct ca_storage *) * ca_storage_max); - - inited++; - } - - struct ca_storage *cas = HASH_FIND(ca_hash, CA, name, type); - if (cas) { - cas->uc++; - } else { - - uint id = idm_alloc(&ca_idm); - - if (id >= EA_CUSTOM_BIT) - cf_error("Too many custom attributes."); - - if (id >= ca_storage_max) { - ca_storage_max *= 2; - ca_storage = mb_realloc(ca_storage, sizeof(struct ca_storage *) * ca_storage_max * 2); - } - - cas = mb_allocz(&root_pool, sizeof(struct ca_storage) + strlen(name) + 1); - cas->fda = f_new_dynamic_attr(type, EA_CUSTOM(id)); - cas->uc = 1; - - strcpy(cas->name, name); - ca_storage[id] = cas; - - HASH_INSERT(ca_hash, CA, cas); - } - - struct custom_attribute *ca = ralloc(p, &ca_class); - ca->fda = &(cas->fda); - ca->name = cas->name; - return ca; -} - -const char * -ea_custom_name(uint ea) -{ - uint id = EA_CUSTOM_ID(ea); - if (id >= ca_storage_max) - return NULL; - - if (!ca_storage[id]) - return NULL; - - return ca_storage[id]->name; -} - diff --git a/filter/filter.h b/filter/filter.h index 0c3486e0..3f2e62eb 100644 --- a/filter/filter.h +++ b/filter/filter.h @@ -70,13 +70,4 @@ void filters_dump_all(void); #define FF_SILENT 2 /* Silent filter execution */ -/* Custom route attributes */ -struct custom_attribute { - resource r; - struct f_dynamic_attr *fda; - const char *name; -}; - -struct custom_attribute *ca_lookup(pool *p, const char *name, btype type); - #endif diff --git a/filter/test.conf b/filter/test.conf index 062756b1..21e7330f 100644 --- a/filter/test.conf +++ b/filter/test.conf @@ -9,7 +9,109 @@ router id 62.168.0.1; /* We have to setup any protocol */ protocol device { } - +/* Setting some custom attributes, enough to force BIRD to reallocate the attribute idmap */ +attribute int test_ca_int1; +attribute int test_ca_int2; +attribute int test_ca_int3; +attribute int test_ca_int4; +attribute int test_ca_int5; +attribute int test_ca_int6; +attribute int test_ca_int7; +attribute int test_ca_int8; +attribute int test_ca_int9; +attribute int test_ca_int10; + +attribute ip test_ca_ip1; +attribute ip test_ca_ip2; +attribute ip test_ca_ip3; +attribute ip test_ca_ip4; +attribute ip test_ca_ip5; +attribute ip test_ca_ip6; +attribute ip test_ca_ip7; +attribute ip test_ca_ip8; +attribute ip test_ca_ip9; +attribute ip test_ca_ip10; + +attribute quad test_ca_quad1; +attribute quad test_ca_quad2; +attribute quad test_ca_quad3; +attribute quad test_ca_quad4; +attribute quad test_ca_quad5; +attribute quad test_ca_quad6; +attribute quad test_ca_quad7; +attribute quad test_ca_quad8; +attribute quad test_ca_quad9; +attribute quad test_ca_quad10; + +attribute bgppath test_ca_bgppath1; +attribute bgppath test_ca_bgppath2; +attribute bgppath test_ca_bgppath3; +attribute bgppath test_ca_bgppath4; +attribute bgppath test_ca_bgppath5; +attribute bgppath test_ca_bgppath6; +attribute bgppath test_ca_bgppath7; +attribute bgppath test_ca_bgppath8; +attribute bgppath test_ca_bgppath9; +attribute bgppath test_ca_bgppath10; + +attribute clist test_ca_clist1; +attribute clist test_ca_clist2; +attribute clist test_ca_clist3; +attribute clist test_ca_clist4; +attribute clist test_ca_clist5; +attribute clist test_ca_clist6; +attribute clist test_ca_clist7; +attribute clist test_ca_clist8; +attribute clist test_ca_clist9; +attribute clist test_ca_clist10; + +attribute eclist test_ca_eclist1; +attribute eclist test_ca_eclist2; +attribute eclist test_ca_eclist3; +attribute eclist test_ca_eclist4; +attribute eclist test_ca_eclist5; +attribute eclist test_ca_eclist6; +attribute eclist test_ca_eclist7; +attribute eclist test_ca_eclist8; +attribute eclist test_ca_eclist9; +attribute eclist test_ca_eclist10; + +attribute lclist test_ca_lclist1; +attribute lclist test_ca_lclist2; +attribute lclist test_ca_lclist3; +attribute lclist test_ca_lclist4; +attribute lclist test_ca_lclist5; +attribute lclist test_ca_lclist6; +attribute lclist test_ca_lclist7; +attribute lclist test_ca_lclist8; +attribute lclist test_ca_lclist9; +attribute lclist test_ca_lclist10; + +attribute lclist test_ca_lclist_max1; +attribute lclist test_ca_lclist_max2; +attribute lclist test_ca_lclist_max3; +attribute lclist test_ca_lclist_max4; +attribute lclist test_ca_lclist_max5; +attribute lclist test_ca_lclist_max6; +attribute lclist test_ca_lclist_max7; +attribute lclist test_ca_lclist_max8; +attribute lclist test_ca_lclist_max9; +attribute lclist test_ca_lclist_max10; +attribute lclist test_ca_lclist_max11; +attribute lclist test_ca_lclist_max12; +attribute lclist test_ca_lclist_max13; +attribute lclist test_ca_lclist_max14; +attribute lclist test_ca_lclist_max15; +attribute lclist test_ca_lclist_max16; +attribute lclist test_ca_lclist_max17; +attribute lclist test_ca_lclist_max18; +attribute lclist test_ca_lclist_max19; +attribute lclist test_ca_lclist_max20; +attribute lclist test_ca_lclist_max21; + + +/* Uncomment this to get an error */ +#attribute int bgp_path; /* * Common definitions and functions @@ -1331,6 +1433,7 @@ function __test2() filter testf int j; +bool t; { print "Heya, filtering route to ", net.ip, " prefixlen ", net.len, " source ", source; print "This route was from ", from; @@ -1342,6 +1445,52 @@ int j; rip_metric = 14; unset(rip_metric); + test_ca_int1 = 42; + test_ca_ip2 = 1.3.5.7; + test_ca_quad3 = 2.4.6.8; + test_ca_bgppath4 = +empty+; + test_ca_clist5 = -empty-; + test_ca_eclist6 = --empty--; + test_ca_lclist7 = ---empty---; + + igp_metric = 53; + babel_metric = 64; + t = defined(babel_router_id); + j = babel_seqno; + + bgp_origin = ORIGIN_IGP; + bgp_path = +empty+; + bgp_next_hop = 3456:789a:bcde:f012::3456:789a; + bgp_med = 71; + bgp_local_pref = 942; + t = defined(bgp_atomic_aggr); + t = defined(bgp_aggregator); + bgp_community = -empty-; + bgp_originator_id = 9.7.5.3; + bgp_cluster_list = -empty-; + t = defined(bgp_mp_reach_nlri); + t = defined(bgp_mp_unreach_nlri); + bgp_ext_community = --empty--; + bgp_as4_path = +empty+; + t = defined(bgp_as4_aggregator); + t = defined(bgp_aigp); + bgp_large_community = ---empty---; + t = defined(bgp_mpls_label_stack); + + ospf_metric1 = 64; + ospf_metric2 = 111; + ospf_tag = 654432; + + radv_preference = RA_PREF_LOW; + radv_lifetime = 28; + + rip_metric = 2; + rip_tag = 4; + t = defined(rip_from); + + krt_source = 17; + krt_metric = 19; + # krt_lock_mtu = false; # krt_lock_window = true; # krt_lock_rtt = krt_lock_rttvar && krt_lock_sstresh || krt_lock_cwnd; diff --git a/lib/event_test.c b/lib/event_test.c index e14d0b95..3070327d 100644 --- a/lib/event_test.c +++ b/lib/event_test.c @@ -55,8 +55,8 @@ t_ev_run_list(void) olock_init(); timer_init(); - io_init(); rt_init(); + io_init(); if_init(); // roa_init(); config_init(); diff --git a/lib/mempool.c b/lib/mempool.c index 325b1ecf..33eaec86 100644 --- a/lib/mempool.c +++ b/lib/mempool.c @@ -41,8 +41,6 @@ struct linpool { uint total, total_large; }; -_Thread_local linpool *tmp_linpool; - static void lp_free(resource *); static void lp_dump(resource *); static resource *lp_lookup(resource *, unsigned long); diff --git a/lib/resource.c b/lib/resource.c index 89e559b4..c31d9889 100644 --- a/lib/resource.c +++ b/lib/resource.c @@ -292,6 +292,25 @@ resource_init(void) tmp_init(&root_pool); } +_Thread_local struct tmp_resources tmp_res; + +void +tmp_init(pool *p) +{ + tmp_res.lp = lp_new_default(p); + tmp_res.parent = p; + tmp_res.pool = rp_new(p, "TMP"); +} + +void +tmp_flush(void) +{ + lp_flush(tmp_linpool); + rfree(tmp_res.pool); + tmp_res.pool = rp_new(tmp_res.parent, "TMP"); +} + + /** * DOC: Memory blocks * diff --git a/lib/resource.h b/lib/resource.h index a4e110a5..4cedbf00 100644 --- a/lib/resource.h +++ b/lib/resource.h @@ -80,14 +80,21 @@ void lp_flush(linpool *); /* Free everything, but leave linpool */ void lp_save(linpool *m, lp_state *p); /* Save state */ void lp_restore(linpool *m, lp_state *p); /* Restore state */ -extern _Thread_local linpool *tmp_linpool; /* Temporary linpool autoflushed regularily */ +struct tmp_resources { + pool *pool, *parent; + linpool *lp; +}; + +extern _Thread_local struct tmp_resources tmp_res; +#define tmp_linpool tmp_res.lp #define tmp_alloc(sz) lp_alloc(tmp_linpool, sz) #define tmp_allocu(sz) lp_allocu(tmp_linpool, sz) #define tmp_allocz(sz) lp_allocz(tmp_linpool, sz) -#define tmp_init(p) tmp_linpool = lp_new_default(p) -#define tmp_flush() lp_flush(tmp_linpool) +void tmp_init(pool *p); +void tmp_flush(void); + #define lp_new_default lp_new diff --git a/lib/route.h b/lib/route.h index e40a2747..7bc67847 100644 --- a/lib/route.h +++ b/lib/route.h @@ -152,19 +152,7 @@ typedef struct eattr { } eattr; -#define EA_CODE(proto,id) (((proto) << 8) | (id)) -#define EA_ID(ea) ((ea) & 0xff) -#define EA_PROTO(ea) ((ea) >> 8) -#define EA_CUSTOM(id) ((id) | EA_CUSTOM_BIT) -#define EA_IS_CUSTOM(ea) ((ea) & EA_CUSTOM_BIT) -#define EA_CUSTOM_ID(ea) ((ea) & ~EA_CUSTOM_BIT) - -const char *ea_custom_name(uint ea); - -#define EA_GEN_IGP_METRIC EA_CODE(PROTOCOL_NONE, 0) - #define EA_CODE_MASK 0xffff -#define EA_CUSTOM_BIT 0x8000 #define EA_ALLOW_UNDEF 0x10000 /* ea_find: allow EAF_TYPE_UNDEF */ #define EA_BIT(n) ((n) << 24) /* Used in bitfield accessors */ #define EA_BIT_GET(ea) ((ea) >> 24) @@ -181,32 +169,67 @@ typedef struct ea_list { #define EALF_BISECT 2 /* Use interval bisection for searching */ #define EALF_CACHED 4 /* Attributes belonging to cached rta */ +struct ea_class { +#define EA_CLASS_INSIDE \ + const char *name; /* Name (both print and filter) */ \ + struct symbol *sym; /* Symbol to export to configs */ \ + uint id; /* Autoassigned attribute ID */ \ + uint uc; /* Reference count */ \ + btype type; /* Data type ID */ \ + uint readonly:1; /* This attribute can't be changed by filters */ \ + uint conf:1; /* Requested by config */ \ + void (*format)(const eattr *ea, byte *buf, uint size); \ + + EA_CLASS_INSIDE; +}; + +struct ea_class_ref { + resource r; + struct ea_class *class; +}; + +extern struct ea_class ea_gen_igp_metric; + +void ea_register_init(struct ea_class *); +struct ea_class_ref *ea_register_alloc(pool *, struct ea_class); + +#define EA_REGISTER_ALL_HELPER(x) ea_register_init(x); +#define EA_REGISTER_ALL(...) MACRO_FOREACH(EA_REGISTER_ALL_HELPER, __VA_ARGS__) + +struct ea_class *ea_class_find_by_id(uint id); +struct ea_class *ea_class_find_by_name(const char *name); +static inline struct ea_class *ea_class_self(struct ea_class *self) { return self; } +#define ea_class_find(_arg) _Generic((_arg), \ + uint: ea_class_find_by_id, \ + word: ea_class_find_by_id, \ + char *: ea_class_find_by_name, \ + const char *: ea_class_find_by_name, \ + struct ea_class *: ea_class_self)(_arg) + struct ea_walk_state { ea_list *eattrs; /* Ccurrent ea_list, initially set by caller */ eattr *ea; /* Current eattr, initially NULL */ u32 visited[4]; /* Bitfield, limiting max to 128 */ }; -eattr *ea_find(ea_list *, unsigned ea); -eattr *ea_walk(struct ea_walk_state *s, uint id, uint max); - -/** - * ea_get_int - fetch an integer attribute - * @e: attribute list - * @id: attribute ID - * @def: default value - * - * This function is a shortcut for retrieving a value of an integer attribute - * by calling ea_find() to find the attribute, extracting its value or returning - * a provided default if no such attribute is present. - */ -static inline u32 -ea_get_int(ea_list *e, unsigned id, u32 def) +#define ea_find(_l, _arg) _Generic((_arg), uint: ea_find_by_id, struct ea_class *: ea_find_by_class, char *: ea_find_by_name)(_l, _arg) +eattr *ea_find_by_id(ea_list *, unsigned ea); +static inline eattr *ea_find_by_class(ea_list *l, const struct ea_class *def) +{ return ea_find_by_id(l, def->id); } +static inline eattr *ea_find_by_name(ea_list *l, const char *name) { - eattr *a = ea_find(e, id); - return a ? a->u.data : def; + const struct ea_class *def = ea_class_find_by_name(name); + return def ? ea_find_by_class(l, def) : NULL; } +#define ea_get_int(_l, _ident, _def) ({ \ + struct ea_class *cls = ea_class_find((_ident)); \ + ASSERT_DIE(cls->type & EAF_EMBEDDED); \ + const eattr *ea = ea_find((_l), cls->id); \ + (ea ? ea->u.data : (_def)); \ + }) + +eattr *ea_walk(struct ea_walk_state *s, uint id, uint max); void ea_dump(ea_list *); int ea_same(ea_list *x, ea_list *y); /* Test whether two ea_lists are identical */ uint ea_hash(ea_list *e); /* Calculate 16-bit hash value */ @@ -221,19 +244,22 @@ void ea_list_copy(ea_list *dest, ea_list *src, uint size); #define EA_LOCAL_LIST(N) struct { ea_list l; eattr a[N]; } -#define EA_LITERAL_EMBEDDED(_id, _type, _flags, _val) ({ \ +#define EA_LITERAL_EMBEDDED(_class, _flags, _val) ({ \ + btype _type = (_class)->type; \ ASSERT_DIE(_type & EAF_EMBEDDED); \ - EA_LITERAL_GENERIC(_id, _type, _flags, .u.i = _val); \ + EA_LITERAL_GENERIC((_class)->id, _type, _flags, .u.i = _val); \ }) -#define EA_LITERAL_STORE_ADATA(_id, _type, _flags, _buf, _len) ({ \ +#define EA_LITERAL_STORE_ADATA(_class, _flags, _buf, _len) ({ \ + btype _type = (_class)->type; \ ASSERT_DIE(!(_type & EAF_EMBEDDED)); \ - EA_LITERAL_GENERIC(_id, _type, _flags, .u.ad = tmp_store_adata((_buf), (_len))); \ + EA_LITERAL_GENERIC((_class)->id, _type, _flags, .u.ad = tmp_store_adata((_buf), (_len))); \ }) -#define EA_LITERAL_DIRECT_ADATA(_id, _type, _flags, _adata) ({ \ +#define EA_LITERAL_DIRECT_ADATA(_class, _flags, _adata) ({ \ + btype _type = (_class)->type; \ ASSERT_DIE(!(_type & EAF_EMBEDDED)); \ - EA_LITERAL_GENERIC(_id, _type, _flags, .u.ad = _adata); \ + EA_LITERAL_GENERIC((_class)->id, _type, _flags, .u.ad = _adata); \ }) #define EA_LITERAL_GENERIC(_id, _type, _flags, ...) \ @@ -255,19 +281,19 @@ ea_set_attr(ea_list **to, eattr a) } static inline void -ea_unset_attr(ea_list **to, _Bool local, uint code) +ea_unset_attr(ea_list **to, _Bool local, const struct ea_class *def) { - ea_set_attr(to, EA_LITERAL_GENERIC(code, 0, 0, + ea_set_attr(to, EA_LITERAL_GENERIC(def->id, 0, 0, .fresh = local, .originated = local, .undef = 1)); } static inline void -ea_set_attr_u32(ea_list **to, uint id, uint flags, uint type, u32 data) -{ ea_set_attr(to, EA_LITERAL_EMBEDDED(id, type, flags, data)); } +ea_set_attr_u32(ea_list **to, const struct ea_class *def, uint flags, u64 data) +{ ea_set_attr(to, EA_LITERAL_EMBEDDED(def, flags, data)); } static inline void -ea_set_attr_data(ea_list **to, uint id, uint flags, uint type, void *data, uint len) -{ ea_set_attr(to, EA_LITERAL_STORE_ADATA(id, type, flags, data, len)); } +ea_set_attr_data(ea_list **to, const struct ea_class *def, uint flags, void *data, uint len) +{ ea_set_attr(to, EA_LITERAL_STORE_ADATA(def, flags, data, len)); } #define NEXTHOP_MAX_SIZE (sizeof(struct nexthop) + sizeof(u32)*MPLS_MAX_LABEL_STACK) diff --git a/nest/config.Y b/nest/config.Y index 1e3fb832..e476e1bf 100644 --- a/nest/config.Y +++ b/nest/config.Y @@ -120,7 +120,7 @@ CF_KEYWORDS(PASSWORD, KEY, FROM, PASSIVE, TO, ID, EVENTS, PACKETS, PROTOCOLS, CH CF_KEYWORDS(ALGORITHM, KEYED, HMAC, MD5, SHA1, SHA256, SHA384, SHA512, BLAKE2S128, BLAKE2S256, BLAKE2B256, BLAKE2B512) CF_KEYWORDS(PRIMARY, STATS, COUNT, BY, FOR, IN, COMMANDS, PREEXPORT, NOEXPORT, EXPORTED, GENERATE) CF_KEYWORDS(BGP, PASSWORDS, DESCRIPTION) -CF_KEYWORDS(RELOAD, IN, OUT, MRTDUMP, MESSAGES, RESTRICT, MEMORY, IGP_METRIC, CLASS, DSCP) +CF_KEYWORDS(RELOAD, IN, OUT, MRTDUMP, MESSAGES, RESTRICT, MEMORY, CLASS, DSCP) CF_KEYWORDS(TIMEFORMAT, ISO, SHORT, LONG, ROUTE, PROTOCOL, BASE, LOG, S, MS, US) CF_KEYWORDS(GRACEFUL, RESTART, WAIT, MAX, FLUSH, AS) CF_KEYWORDS(MIN, IDLE, RX, TX, INTERVAL, MULTIPLIER, PASSIVE) @@ -924,9 +924,6 @@ proto_patt2: | TEXT { $$.ptr = $1; $$.patt = 1; } ; -dynamic_attr: IGP_METRIC { $$ = f_new_dynamic_attr(T_INT, EA_GEN_IGP_METRIC); } ; - - CF_CODE CF_END diff --git a/nest/proto.c b/nest/proto.c index 21f76f6d..77817888 100644 --- a/nest/proto.c +++ b/nest/proto.c @@ -26,7 +26,6 @@ pool *proto_pool; list STATIC_LIST_INIT(proto_list); static list STATIC_LIST_INIT(protocol_list); -struct protocol *class_to_protocol[PROTOCOL__MAX]; #define CD(c, msg, args...) ({ if (c->debug & D_STATES) log(L_TRACE "%s.%s: " msg, c->proto->name, c->name ?: "?", ## args); }) #define PD(p, msg, args...) ({ if (p->debug & D_STATES) log(L_TRACE "%s: " msg, p->name, ## args); }) @@ -1743,9 +1742,6 @@ void proto_build(struct protocol *p) { add_tail(&protocol_list, &p->n); - ASSERT(p->class); - ASSERT(!class_to_protocol[p->class]); - class_to_protocol[p->class] = p; } /* FIXME: convert this call to some protocol hook */ diff --git a/nest/protocol.h b/nest/protocol.h index b6aa6469..1d7dea4b 100644 --- a/nest/protocol.h +++ b/nest/protocol.h @@ -38,38 +38,20 @@ struct symbol; * Routing Protocol */ -enum protocol_class { - PROTOCOL_NONE, - PROTOCOL_BABEL, - PROTOCOL_BFD, - PROTOCOL_BGP, - PROTOCOL_DEVICE, - PROTOCOL_DIRECT, - PROTOCOL_KERNEL, - PROTOCOL_OSPF, - PROTOCOL_MRT, - PROTOCOL_PERF, - PROTOCOL_PIPE, - PROTOCOL_RADV, - PROTOCOL_RIP, - PROTOCOL_RPKI, - PROTOCOL_STATIC, - PROTOCOL__MAX -}; - -extern struct protocol *class_to_protocol[PROTOCOL__MAX]; struct protocol { node n; char *name; char *template; /* Template for automatic generation of names */ int name_counter; /* Counter for automatic name generation */ - enum protocol_class class; /* Machine readable protocol class */ uint preference; /* Default protocol preference */ uint channel_mask; /* Mask of accepted channel types (NB_*) */ uint proto_size; /* Size of protocol data structure */ uint config_size; /* Size of protocol config data structure */ + uint eattr_begin; /* First ID of registered eattrs */ + uint eattr_end; /* End of eattr id zone */ + void (*preconfig)(struct protocol *, struct config *); /* Just before configuring */ void (*postconfig)(struct proto_config *); /* After configuring each instance */ struct proto * (*init)(struct proto_config *); /* Create new instance */ @@ -79,7 +61,7 @@ struct protocol { int (*shutdown)(struct proto *); /* Stop the instance */ void (*get_status)(struct proto *, byte *buf); /* Get instance status (for `show protocols' command) */ void (*get_route_info)(struct rte *, byte *buf); /* Get route information (for `show route' command) */ - int (*get_attr)(const struct eattr *, byte *buf, int buflen); /* ASCIIfy dynamic attribute (returns GA_*) */ +// int (*get_attr)(const struct eattr *, byte *buf, int buflen); /* ASCIIfy dynamic attribute (returns GA_*) */ void (*show_proto_info)(struct proto *); /* Show protocol info (for `show protocols all' command) */ void (*copy_config)(struct proto_config *, struct proto_config *); /* Copy config from given protocol instance */ }; diff --git a/nest/rt-attr.c b/nest/rt-attr.c index afa95eec..a763db4d 100644 --- a/nest/rt-attr.c +++ b/nest/rt-attr.c @@ -60,6 +60,11 @@ const adata null_adata; /* adata of length 0 */ +struct ea_class ea_gen_igp_metric = { + .name = "igp_metric", + .type = T_INT, +}; + const char * const rta_src_names[RTS_MAX] = { [RTS_STATIC] = "static", [RTS_INHERIT] = "inherit", @@ -401,6 +406,117 @@ nexthop_free(struct nexthop *o) * Extended Attributes */ +#define EA_CLASS_INITIAL_MAX 128 +static struct ea_class **ea_class_global = NULL; +static uint ea_class_max; +static struct idm ea_class_idm; + +/* Config parser lex register function */ +void ea_lex_register(struct ea_class *def); +void ea_lex_unregister(struct ea_class *def); + +static void +ea_class_free(struct ea_class *cl) +{ + /* No more ea class references. Unregister the attribute. */ + idm_free(&ea_class_idm, cl->id); + ea_class_global[cl->id] = NULL; + ea_lex_unregister(cl); +} + +static void +ea_class_ref_free(resource *r) +{ + struct ea_class_ref *ref = SKIP_BACK(struct ea_class_ref, r, r); + if (!--ref->class->uc) + ea_class_free(ref->class); +} + +static void +ea_class_ref_dump(resource *r) +{ + struct ea_class_ref *ref = SKIP_BACK(struct ea_class_ref, r, r); + debug("name \"%s\", type=%d\n", ref->class->name, ref->class->type); +} + +static struct resclass ea_class_ref_class = { + .name = "Attribute class reference", + .size = sizeof(struct ea_class_ref), + .free = ea_class_ref_free, + .dump = ea_class_ref_dump, + .lookup = NULL, + .memsize = NULL, +}; + +static void +ea_class_init(void) +{ + idm_init(&ea_class_idm, rta_pool, EA_CLASS_INITIAL_MAX); + ea_class_global = mb_allocz(rta_pool, + sizeof(*ea_class_global) * (ea_class_max = EA_CLASS_INITIAL_MAX)); +} + +static struct ea_class_ref * +ea_ref_class(pool *p, struct ea_class *def) +{ + def->uc++; + struct ea_class_ref *ref = ralloc(p, &ea_class_ref_class); + ref->class = def; + return ref; +} + +static struct ea_class_ref * +ea_register(pool *p, struct ea_class *def) +{ + def->id = idm_alloc(&ea_class_idm); + + ASSERT_DIE(ea_class_global); + while (def->id >= ea_class_max) + ea_class_global = mb_realloc(ea_class_global, sizeof(*ea_class_global) * (ea_class_max *= 2)); + + ASSERT_DIE(def->id < ea_class_max); + ea_class_global[def->id] = def; + + ea_lex_register(def); + + return ea_ref_class(p, def); +} + +struct ea_class_ref * +ea_register_alloc(pool *p, struct ea_class cl) +{ + struct ea_class *clp = ea_class_find_by_name(cl.name); + if (clp && clp->type == cl.type) + return ea_ref_class(p, clp); + + uint namelen = strlen(cl.name) + 1; + + struct { + struct ea_class cl; + char name[0]; + } *cla = mb_alloc(rta_pool, sizeof(struct ea_class) + namelen); + cla->cl = cl; + memcpy(cla->name, cl.name, namelen); + cla->cl.name = cla->name; + + return ea_register(p, &cla->cl); +} + +void +ea_register_init(struct ea_class *clp) +{ + ASSERT_DIE(!ea_class_find_by_name(clp->name)); + ea_register(&root_pool, clp); +} + +struct ea_class * +ea_class_find_by_id(uint id) +{ + ASSERT_DIE(id < ea_class_max); + ASSERT_DIE(ea_class_global[id]); + return ea_class_global[id]; +} + static inline eattr * ea__find(ea_list *e, unsigned id) { @@ -444,7 +560,7 @@ ea__find(ea_list *e, unsigned id) * to its &eattr structure or %NULL if no such attribute exists. */ eattr * -ea_find(ea_list *e, unsigned id) +ea_find_by_id(ea_list *e, unsigned id) { eattr *a = ea__find(e, id & EA_CODE_MASK); @@ -784,26 +900,44 @@ ea_list_copy(ea_list *n, ea_list *o, uint elen) ASSERT_DIE(adpos == elen); } -static inline void -ea_free(ea_list *o) +static void +ea_list_ref(ea_list *l) { - if (o) + for(uint i=0; i<l->count; i++) { - ASSERT(!o->next); - mb_free(o); + eattr *a = &l->attrs[i]; + ASSERT_DIE(a->id < ea_class_max); + + struct ea_class *cl = ea_class_global[a->id]; + ASSERT_DIE(cl && cl->uc); + cl->uc++; } } -static int -get_generic_attr(const eattr *a, byte **buf, int buflen UNUSED) +static void +ea_list_unref(ea_list *l) { - if (a->id == EA_GEN_IGP_METRIC) + for(uint i=0; i<l->count; i++) { - *buf += bsprintf(*buf, "igp_metric"); - return GA_NAME; + eattr *a = &l->attrs[i]; + ASSERT_DIE(a->id < ea_class_max); + + struct ea_class *cl = ea_class_global[a->id]; + ASSERT_DIE(cl && cl->uc); + if (!--cl->uc) + ea_class_free(cl); } +} - return GA_UNKNOWN; +static inline void +ea_free(ea_list *o) +{ + if (o) + { + ea_list_unref(o); + ASSERT(!o->next); + mb_free(o); + } } void @@ -905,47 +1039,27 @@ ea_show_lc_set(struct cli *c, const struct adata *ad, byte *pos, byte *buf, byte void ea_show(struct cli *c, const eattr *e) { - struct protocol *p; - int status = GA_UNKNOWN; const struct adata *ad = (e->type & EAF_EMBEDDED) ? NULL : e->u.ptr; byte buf[CLI_MSG_SIZE]; byte *pos = buf, *end = buf + sizeof(buf); - if (EA_IS_CUSTOM(e->id)) - { - const char *name = ea_custom_name(e->id); - if (name) - { - pos += bsprintf(pos, "%s", name); - status = GA_NAME; - } - else - pos += bsprintf(pos, "%02x.", EA_PROTO(e->id)); - } - else if (p = class_to_protocol[EA_PROTO(e->id)]) - { - pos += bsprintf(pos, "%s.", p->name); - if (p->get_attr) - status = p->get_attr(e, pos, end - pos); - pos += strlen(pos); - } - else if (EA_PROTO(e->id)) - pos += bsprintf(pos, "%02x.", EA_PROTO(e->id)); - else - status = get_generic_attr(e, &pos, end - pos); + ASSERT_DIE(e->id < ea_class_max); - if (status < GA_NAME) - pos += bsprintf(pos, "%02x", EA_ID(e->id)); - if (status < GA_FULL) - { - *pos++ = ':'; - *pos++ = ' '; + struct ea_class *cls = ea_class_global[e->id]; + ASSERT_DIE(cls); - if (e->undef) - bsprintf(pos, "undefined"); - else - switch (e->type) - { + pos += bsprintf(pos, "%s", cls->name); + + *pos++ = ':'; + *pos++ = ' '; + + if (e->undef) + bsprintf(pos, "undefined (should not happen)"); + else if (cls->format) + cls->format(e, buf, end - buf); + else + switch (e->type) + { case T_INT: bsprintf(pos, "%u", e->u.data); break; @@ -970,13 +1084,10 @@ ea_show(struct cli *c, const eattr *e) case T_LCLIST: ea_show_lc_set(c, ad, pos, buf, end); return; - case T_IFACE: - bsprintf(pos, "%s", ((struct iface *) e->u.ptr)->name); - return; default: bsprintf(pos, "<type %02x>", e->type); - } - } + } + cli_printf(c, -1012, "\t%s", buf); } @@ -1006,7 +1117,7 @@ ea_dump(ea_list *e) for(i=0; i<e->count; i++) { eattr *a = &e->attrs[i]; - debug(" %02x:%02x.%02x", EA_PROTO(a->id), EA_ID(a->id), a->flags); + debug(" %04x.%02x", a->id, a->flags); debug("=%c", "?iO?IRP???S??pE?" "??L???N?????????" @@ -1157,6 +1268,7 @@ rta_copy(rta *o) uint elen = ea_list_size(o->eattrs); r->eattrs = mb_alloc(rta_pool, elen); ea_list_copy(r->eattrs, o->eattrs, elen); + ea_list_ref(r->eattrs); r->eattrs->flags |= EALF_CACHED; return r; } @@ -1357,6 +1469,9 @@ rta_init(void) rta_alloc_hash(); rte_src_init(); + ea_class_init(); + + ea_register_init(&ea_gen_igp_metric); } /* diff --git a/nest/rt-dev.c b/nest/rt-dev.c index d0782f2b..77213a2c 100644 --- a/nest/rt-dev.c +++ b/nest/rt-dev.c @@ -184,7 +184,6 @@ dev_copy_config(struct proto_config *dest, struct proto_config *src) struct protocol proto_device = { .name = "Direct", .template = "direct%d", - .class = PROTOCOL_DIRECT, .preference = DEF_PREF_DIRECT, .channel_mask = NB_IP | NB_IP6_SADR, .proto_size = sizeof(struct rt_dev_proto), diff --git a/nest/rt-table.c b/nest/rt-table.c index 9c7fd5e4..849f6766 100644 --- a/nest/rt-table.c +++ b/nest/rt-table.c @@ -2653,14 +2653,14 @@ net_flow_has_dst_prefix(const net_addr *n) static inline int rta_as_path_is_empty(rta *a) { - eattr *e = ea_find(a->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + eattr *e = ea_find(a->eattrs, "bgp_path"); return !e || (as_path_getlen(e->u.ptr) == 0); } static inline u32 rta_get_first_asn(rta *a) { - eattr *e = ea_find(a->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + eattr *e = ea_find(a->eattrs, "bgp_path"); u32 asn; return (e && as_path_get_first_regular(e->u.ptr, &asn)) ? asn : 0; @@ -2704,8 +2704,8 @@ rt_flowspec_check(rtable *tab_ip, rtable *tab_flow, const net_addr *n, rta *a, i return 0; /* Find ORIGINATOR_ID values */ - u32 orig_a = ea_get_int(a->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID), 0); - u32 orig_b = ea_get_int(rb->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID), 0); + u32 orig_a = ea_get_int(a->eattrs, "bgp_originator_id", 0); + u32 orig_b = ea_get_int(rb->attrs->eattrs, "bgp_originator_id", 0); /* Originator is either ORIGINATOR_ID (if present), or BGP neighbor address (if not) */ if ((orig_a != orig_b) || (!orig_a && !orig_b && !ipa_equal(a->from, rb->attrs->from))) @@ -3536,7 +3536,7 @@ if_local_addr(ip_addr a, struct iface *i) u32 rt_get_igp_metric(rte *rt) { - eattr *ea = ea_find(rt->attrs->eattrs, EA_GEN_IGP_METRIC); + eattr *ea = ea_find(rt->attrs->eattrs, "igp_metric"); if (ea) return ea->u.data; diff --git a/proto/babel/babel.c b/proto/babel/babel.c index fcd7eafb..f19a2e0f 100644 --- a/proto/babel/babel.c +++ b/proto/babel/babel.c @@ -37,6 +37,7 @@ #include <stdlib.h> #include "babel.h" +#include "lib/macro.h" #define LOG_PKT_AUTH(msg, args...) \ log_rl(&p->log_pkt_tbf, L_AUTH "%s: " msg, p->p.name, args) @@ -58,6 +59,8 @@ static void babel_update_cost(struct babel_neighbor *n); static inline void babel_kick_timer(struct babel_proto *p); static inline void babel_iface_kick_timer(struct babel_iface *ifa); +static struct ea_class ea_babel_metric, ea_babel_router_id, ea_babel_seqno; + /* * Functions to maintain data structures */ @@ -646,9 +649,9 @@ babel_announce_rte(struct babel_proto *p, struct babel_entry *e) } eattrs = { .l.count = 3, .a = { - EA_LITERAL_EMBEDDED(EA_BABEL_METRIC, T_INT, 0, r->metric), - EA_LITERAL_STORE_ADATA(EA_BABEL_ROUTER_ID, T_OPAQUE, 0, &r->router_id, sizeof(r->router_id)), - EA_LITERAL_EMBEDDED(EA_BABEL_SEQNO, T_INT, 0, r->seqno), + EA_LITERAL_EMBEDDED(&ea_babel_metric, 0, r->metric), + EA_LITERAL_STORE_ADATA(&ea_babel_router_id, 0, &r->router_id, sizeof(r->router_id)), + EA_LITERAL_EMBEDDED(&ea_babel_seqno, 0, r->seqno), } }; @@ -2021,38 +2024,40 @@ static void babel_get_route_info(rte *rte, byte *buf) { u64 rid = 0; - eattr *e = ea_find(rte->attrs->eattrs, EA_BABEL_ROUTER_ID); + eattr *e = ea_find(rte->attrs->eattrs, &ea_babel_router_id); if (e) memcpy(&rid, e->u.ptr->data, sizeof(u64)); buf += bsprintf(buf, " (%d/%d) [%lR]", rte->attrs->pref, - ea_get_int(rte->attrs->eattrs, EA_BABEL_METRIC, BABEL_INFINITY), rid); + ea_get_int(rte->attrs->eattrs, &ea_babel_metric, BABEL_INFINITY), rid); } -static int -babel_get_attr(const eattr *a, byte *buf, int buflen UNUSED) +static void +babel_router_id_format(const eattr *a, byte *buf, uint len) { - switch (a->id) - { - case EA_BABEL_SEQNO: - return GA_FULL; + u64 rid = 0; + memcpy(&rid, a->u.ptr->data, sizeof(u64)); + bsnprintf(buf, len, "%lR", rid); +} - case EA_BABEL_METRIC: - bsprintf(buf, "metric: %d", a->u.data); - return GA_FULL; +static struct ea_class ea_babel_metric = { + .name = "babel_metric", + .type = T_INT, +}; - case EA_BABEL_ROUTER_ID: - { - u64 rid = 0; - memcpy(&rid, a->u.ptr->data, sizeof(u64)); - bsprintf(buf, "router_id: %lR", rid); - return GA_FULL; - } +static struct ea_class ea_babel_router_id = { + .name = "babel_router_id", + .type = T_OPAQUE, + .readonly = 1, + .format = babel_router_id_format, +}; + +static struct ea_class ea_babel_seqno = { + .name = "babel_seqno", + .type = T_INT, + .readonly = 1, +}; - default: - return GA_UNKNOWN; - } -} void babel_show_interfaces(struct proto *P, const char *iff) @@ -2275,13 +2280,13 @@ babel_rt_notify(struct proto *P, struct channel *c UNUSED, const net_addr *net, { /* Update */ uint rt_seqno; - uint rt_metric = ea_get_int(new->attrs->eattrs, EA_BABEL_METRIC, 0); + uint rt_metric = ea_get_int(new->attrs->eattrs, &ea_babel_metric, 0); u64 rt_router_id = 0; if (new->src->proto == P) { - rt_seqno = ea_find(new->attrs->eattrs, EA_BABEL_SEQNO)->u.data; - eattr *e = ea_find(new->attrs->eattrs, EA_BABEL_ROUTER_ID); + rt_seqno = ea_get_int(new->attrs->eattrs, &ea_babel_seqno, 0); + eattr *e = ea_find(new->attrs->eattrs, &ea_babel_router_id); if (e) memcpy(&rt_router_id, e->u.ptr->data, sizeof(u64)); } @@ -2332,8 +2337,8 @@ babel_rt_notify(struct proto *P, struct channel *c UNUSED, const net_addr *net, static int babel_rte_better(struct rte *new, struct rte *old) { - uint new_metric = ea_find(new->attrs->eattrs, EA_BABEL_SEQNO)->u.data; - uint old_metric = ea_find(old->attrs->eattrs, EA_BABEL_SEQNO)->u.data; + uint new_metric = ea_get_int(new->attrs->eattrs, &ea_babel_metric, BABEL_INFINITY); + uint old_metric = ea_get_int(old->attrs->eattrs, &ea_babel_metric, BABEL_INFINITY); return new_metric < old_metric; } @@ -2341,7 +2346,7 @@ babel_rte_better(struct rte *new, struct rte *old) static u32 babel_rte_igp_metric(struct rte *rt) { - return ea_get_int(rt->attrs->eattrs, EA_BABEL_METRIC, BABEL_INFINITY); + return ea_get_int(rt->attrs->eattrs, &ea_babel_metric, BABEL_INFINITY); } @@ -2474,11 +2479,9 @@ babel_reconfigure(struct proto *P, struct proto_config *CF) return 1; } - struct protocol proto_babel = { .name = "Babel", .template = "babel%d", - .class = PROTOCOL_BABEL, .preference = DEF_PREF_BABEL, .channel_mask = NB_IP | NB_IP6_SADR, .proto_size = sizeof(struct babel_proto), @@ -2490,11 +2493,16 @@ struct protocol proto_babel = { .shutdown = babel_shutdown, .reconfigure = babel_reconfigure, .get_route_info = babel_get_route_info, - .get_attr = babel_get_attr }; void babel_build(void) { proto_build(&proto_babel); + + EA_REGISTER_ALL( + &ea_babel_metric, + &ea_babel_router_id, + &ea_babel_seqno + ); } diff --git a/proto/babel/babel.h b/proto/babel/babel.h index 00814641..a980d1da 100644 --- a/proto/babel/babel.h +++ b/proto/babel/babel.h @@ -26,10 +26,6 @@ #include "lib/string.h" #include "lib/timer.h" -#define EA_BABEL_METRIC EA_CODE(PROTOCOL_BABEL, 0) -#define EA_BABEL_ROUTER_ID EA_CODE(PROTOCOL_BABEL, 1) -#define EA_BABEL_SEQNO EA_CODE(PROTOCOL_BABEL, 2) - #define BABEL_MAGIC 42 #define BABEL_VERSION 2 #define BABEL_PORT 6696 diff --git a/proto/babel/config.Y b/proto/babel/config.Y index fa745993..82419b20 100644 --- a/proto/babel/config.Y +++ b/proto/babel/config.Y @@ -163,8 +163,6 @@ babel_iface_opt_list: babel_iface: babel_iface_start iface_patt_list_nopx babel_iface_opt_list babel_iface_finish; -dynamic_attr: BABEL_METRIC { $$ = f_new_dynamic_attr(T_INT, EA_BABEL_METRIC); } ; - CF_CLI_HELP(SHOW BABEL, ..., [[Show information about Babel protocol]]); CF_CLI(SHOW BABEL INTERFACES, optproto opttext, [<name>] [\"<interface>\"], [[Show information about Babel interfaces]]) diff --git a/proto/bfd/bfd.c b/proto/bfd/bfd.c index 873e2ed5..871ecf69 100644 --- a/proto/bfd/bfd.c +++ b/proto/bfd/bfd.c @@ -1183,7 +1183,6 @@ bfd_show_sessions(struct proto *P) struct protocol proto_bfd = { .name = "BFD", .template = "bfd%d", - .class = PROTOCOL_BFD, .proto_size = sizeof(struct bfd_proto), .config_size = sizeof(struct bfd_config), .init = bfd_init, diff --git a/proto/bgp/attrs.c b/proto/bgp/attrs.c index e6f11a88..a713b7a2 100644 --- a/proto/bgp/attrs.c +++ b/proto/bgp/attrs.c @@ -21,6 +21,7 @@ #include "lib/resource.h" #include "lib/string.h" #include "lib/unaligned.h" +#include "lib/macro.h" #include "bgp.h" @@ -64,28 +65,37 @@ * format - Optional hook that converts eattr to textual representation. */ - -struct bgp_attr_desc { - const char *name; - uint type; - uint flags; - void (*export)(struct bgp_export_state *s, eattr *a); - int (*encode)(struct bgp_write_state *s, eattr *a, byte *buf, uint size); - void (*decode)(struct bgp_parse_state *s, uint code, uint flags, byte *data, uint len, ea_list **to); - void (*format)(const eattr *ea, byte *buf, uint size); +union bgp_attr_desc { + struct ea_class class; + struct { + EA_CLASS_INSIDE; + uint flags; + void (*export)(struct bgp_export_state *s, eattr *a); + int (*encode)(struct bgp_write_state *s, eattr *a, byte *buf, uint size); + void (*decode)(struct bgp_parse_state *s, uint code, uint flags, byte *data, uint len, ea_list **to); + }; }; -static const struct bgp_attr_desc bgp_attr_table[]; +static union bgp_attr_desc bgp_attr_table[]; +static inline const union bgp_attr_desc *bgp_find_attr_desc(eattr *a) +{ + const struct ea_class *class = ea_class_find(a->id); + + if ((class < &bgp_attr_table[0].class) || (class >= &bgp_attr_table[BGP_ATTR_MAX].class)) + return NULL; + + return (const union bgp_attr_desc *) class; +} -static inline int bgp_attr_known(uint code); +#define BGP_EA_ID(code) (bgp_attr_table[code].id) +#define EA_BGP_ID(code) (((union bgp_attr_desc *) ea_class_find(code)) - bgp_attr_table) void bgp_set_attr_u32(ea_list **to, uint code, uint flags, u32 val) { - ASSERT(bgp_attr_known(code)); + const union bgp_attr_desc *desc = &bgp_attr_table[code]; ea_set_attr(to, EA_LITERAL_EMBEDDED( - EA_CODE(PROTOCOL_BGP, code), - bgp_attr_table[code].type, + &desc->class, flags & ~BAF_EXT_LEN, val )); @@ -93,11 +103,10 @@ void bgp_set_attr_u32(ea_list **to, uint code, uint flags, u32 val) void bgp_set_attr_ptr(ea_list **to, uint code, uint flags, const struct adata *ad) { - ASSERT(bgp_attr_known(code)); + const union bgp_attr_desc *desc = &bgp_attr_table[code]; ea_set_attr(to, EA_LITERAL_DIRECT_ADATA( - EA_CODE(PROTOCOL_BGP, code), - bgp_attr_table[code].type, + &desc->class, flags & ~BAF_EXT_LEN, ad )); @@ -106,17 +115,23 @@ void bgp_set_attr_ptr(ea_list **to, uint code, uint flags, const struct adata *a void bgp_set_attr_data(ea_list **to, uint code, uint flags, void *data, uint len) { - ASSERT(bgp_attr_known(code)); + const union bgp_attr_desc *desc = &bgp_attr_table[code]; ea_set_attr(to, EA_LITERAL_STORE_ADATA( - EA_CODE(PROTOCOL_BGP, code), - bgp_attr_table[code].type, + &desc->class, flags & ~BAF_EXT_LEN, data, len )); } +void +bgp_unset_attr(ea_list **to, uint code) +{ + const union bgp_attr_desc *desc = &bgp_attr_table[code]; + ea_unset_attr(to, 0, &desc->class); +} + #define REPORT(msg, args...) \ ({ log(L_REMOTE "%s: " msg, s->proto->p.name, ## args); }) @@ -172,7 +187,7 @@ bgp_encode_u8(struct bgp_write_state *s UNUSED, eattr *a, byte *buf, uint size) if (size < (3+1)) return -1; - bgp_put_attr_hdr3(buf, EA_ID(a->id), a->flags, 1); + bgp_put_attr_hdr3(buf, EA_BGP_ID(a->id), a->flags, 1); buf[3] = a->u.data; return 3+1; @@ -184,7 +199,7 @@ bgp_encode_u32(struct bgp_write_state *s UNUSED, eattr *a, byte *buf, uint size) if (size < (3+4)) return -1; - bgp_put_attr_hdr3(buf, EA_ID(a->id), a->flags, 4); + bgp_put_attr_hdr3(buf, EA_BGP_ID(a->id), a->flags, 4); put_u32(buf+3, a->u.data); return 3+4; @@ -198,7 +213,7 @@ bgp_encode_u32s(struct bgp_write_state *s UNUSED, eattr *a, byte *buf, uint size if (size < (4+len)) return -1; - uint hdr = bgp_put_attr_hdr(buf, EA_ID(a->id), a->flags, len); + uint hdr = bgp_put_attr_hdr(buf, EA_BGP_ID(a->id), a->flags, len); put_u32s(buf + hdr, (u32 *) a->u.ptr->data, len / 4); return hdr + len; @@ -219,7 +234,7 @@ bgp_put_attr(byte *buf, uint size, uint code, uint flags, const byte *data, uint static int bgp_encode_raw(struct bgp_write_state *s UNUSED, eattr *a, byte *buf, uint size) { - return bgp_put_attr(buf, size, EA_ID(a->id), a->flags, a->u.ptr->data, a->u.ptr->length); + return bgp_put_attr(buf, size, EA_BGP_ID(a->id), a->flags, a->u.ptr->data, a->u.ptr->length); } @@ -359,7 +374,7 @@ bgp_aigp_set_metric(struct linpool *pool, const struct adata *ad, u64 metric) int bgp_total_aigp_metric_(struct rta *a, u64 *metric, const struct adata **ad) { - eattr *ea = ea_find(a->eattrs, EA_CODE(PROTOCOL_BGP, BA_AIGP)); + eattr *ea = ea_find(a->eattrs, BGP_EA_ID(BA_AIGP)); if (!ea) return 0; @@ -994,10 +1009,29 @@ bgp_format_mpls_label_stack(const eattr *a, byte *buf, uint size) } static inline void +bgp_export_unknown(struct bgp_export_state *s UNUSED, eattr *a) +{ + if (!(a->flags & BAF_TRANSITIVE)) + UNSET(a); + + a->flags |= BAF_PARTIAL; +} + +static inline void bgp_decode_unknown(struct bgp_parse_state *s UNUSED, uint code, uint flags, byte *data, uint len, ea_list **to) { + if (!(flags & BAF_OPTIONAL)) + WITHDRAW("Unknown attribute (code %u) - conflicting flags (%02x)", code, flags); + /* Cannot use bgp_set_attr_data() as it works on known attributes only */ - ea_set_attr_data(to, EA_CODE(PROTOCOL_BGP, code), flags, T_OPAQUE, data, len); + ea_set_attr_data(to, &bgp_attr_table[code].class, flags, data, len); +} + +static inline void +bgp_format_unknown(const eattr *a, byte *buf, uint size) +{ + if (a->flags & BAF_TRANSITIVE) + bsnprintf(buf, size, "(transitive)"); } @@ -1005,9 +1039,9 @@ bgp_decode_unknown(struct bgp_parse_state *s UNUSED, uint code, uint flags, byte * Attribute table */ -static const struct bgp_attr_desc bgp_attr_table[] = { +static union bgp_attr_desc bgp_attr_table[BGP_ATTR_MAX] = { [BA_ORIGIN] = { - .name = "origin", + .name = "bgp_origin", .type = T_ENUM_BGP_ORIGIN, .flags = BAF_TRANSITIVE, .export = bgp_export_origin, @@ -1016,14 +1050,14 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .format = bgp_format_origin, }, [BA_AS_PATH] = { - .name = "as_path", + .name = "bgp_path", .type = T_PATH, .flags = BAF_TRANSITIVE, .encode = bgp_encode_as_path, .decode = bgp_decode_as_path, }, [BA_NEXT_HOP] = { - .name = "next_hop", + .name = "bgp_next_hop", .type = T_IP, .flags = BAF_TRANSITIVE, .encode = bgp_encode_next_hop, @@ -1031,14 +1065,14 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .format = bgp_format_next_hop, }, [BA_MULTI_EXIT_DISC] = { - .name = "med", + .name = "bgp_med", .type = T_INT, .flags = BAF_OPTIONAL, .encode = bgp_encode_u32, .decode = bgp_decode_med, }, [BA_LOCAL_PREF] = { - .name = "local_pref", + .name = "bgp_local_pref", .type = T_INT, .flags = BAF_TRANSITIVE, .export = bgp_export_local_pref, @@ -1046,14 +1080,14 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .decode = bgp_decode_local_pref, }, [BA_ATOMIC_AGGR] = { - .name = "atomic_aggr", + .name = "bgp_atomic_aggr", .type = T_OPAQUE, .flags = BAF_TRANSITIVE, .encode = bgp_encode_raw, .decode = bgp_decode_atomic_aggr, }, [BA_AGGREGATOR] = { - .name = "aggregator", + .name = "bgp_aggregator", .type = T_OPAQUE, .flags = BAF_OPTIONAL | BAF_TRANSITIVE, .encode = bgp_encode_aggregator, @@ -1061,7 +1095,7 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .format = bgp_format_aggregator, }, [BA_COMMUNITY] = { - .name = "community", + .name = "bgp_community", .type = T_CLIST, .flags = BAF_OPTIONAL | BAF_TRANSITIVE, .export = bgp_export_community, @@ -1069,7 +1103,7 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .decode = bgp_decode_community, }, [BA_ORIGINATOR_ID] = { - .name = "originator_id", + .name = "bgp_originator_id", .type = T_QUAD, .flags = BAF_OPTIONAL, .export = bgp_export_originator_id, @@ -1077,7 +1111,7 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .decode = bgp_decode_originator_id, }, [BA_CLUSTER_LIST] = { - .name = "cluster_list", + .name = "bgp_cluster_list", .type = T_CLIST, .flags = BAF_OPTIONAL, .export = bgp_export_cluster_list, @@ -1086,19 +1120,19 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .format = bgp_format_cluster_list, }, [BA_MP_REACH_NLRI] = { - .name = "mp_reach_nlri", + .name = "bgp_mp_reach_nlri", .type = T_OPAQUE, .flags = BAF_OPTIONAL, .decode = bgp_decode_mp_reach_nlri, }, [BA_MP_UNREACH_NLRI] = { - .name = "mp_unreach_nlri", + .name = "bgp_mp_unreach_nlri", .type = T_OPAQUE, .flags = BAF_OPTIONAL, .decode = bgp_decode_mp_unreach_nlri, }, [BA_EXT_COMMUNITY] = { - .name = "ext_community", + .name = "bgp_ext_community", .type = T_ECLIST, .flags = BAF_OPTIONAL | BAF_TRANSITIVE, .export = bgp_export_ext_community, @@ -1106,14 +1140,14 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .decode = bgp_decode_ext_community, }, [BA_AS4_PATH] = { - .name = "as4_path", + .name = "bgp_as4_path", .type = T_PATH, .flags = BAF_OPTIONAL | BAF_TRANSITIVE, .encode = bgp_encode_raw, .decode = bgp_decode_as4_path, }, [BA_AS4_AGGREGATOR] = { - .name = "as4_aggregator", + .name = "bgp_as4_aggregator", .type = T_OPAQUE, .flags = BAF_OPTIONAL | BAF_TRANSITIVE, .encode = bgp_encode_raw, @@ -1121,7 +1155,7 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .format = bgp_format_aggregator, }, [BA_AIGP] = { - .name = "aigp", + .name = "bgp_aigp", .type = T_OPAQUE, .flags = BAF_OPTIONAL | BAF_DECODE_FLAGS, .export = bgp_export_aigp, @@ -1130,7 +1164,7 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .format = bgp_format_aigp, }, [BA_LARGE_COMMUNITY] = { - .name = "large_community", + .name = "bgp_large_community", .type = T_LCLIST, .flags = BAF_OPTIONAL | BAF_TRANSITIVE, .export = bgp_export_large_community, @@ -1138,8 +1172,9 @@ static const struct bgp_attr_desc bgp_attr_table[] = { .decode = bgp_decode_large_community, }, [BA_MPLS_LABEL_STACK] = { - .name = "mpls_label_stack", + .name = "bgp_mpls_label_stack", .type = T_CLIST, + .readonly = 1, .export = bgp_export_mpls_label_stack, .encode = bgp_encode_mpls_label_stack, .decode = bgp_decode_mpls_label_stack, @@ -1147,12 +1182,32 @@ static const struct bgp_attr_desc bgp_attr_table[] = { }, }; -static inline int -bgp_attr_known(uint code) +eattr * +bgp_find_attr(ea_list *attrs, uint code) { - return (code < ARRAY_SIZE(bgp_attr_table)) && bgp_attr_table[code].name; + return ea_find(attrs, BGP_EA_ID(code)); } +void +bgp_register_attrs(void) +{ + for (uint i=0; i<ARRAY_SIZE(bgp_attr_table); i++) + { + if (!bgp_attr_table[i].name) + bgp_attr_table[i] = (union bgp_attr_desc) { + .name = mb_sprintf(&root_pool, "bgp_unknown_0x%02x", i), + .type = T_OPAQUE, + .flags = BAF_OPTIONAL, + .readonly = 1, + .export = bgp_export_unknown, + .encode = bgp_encode_raw, + .decode = bgp_decode_unknown, + .format = bgp_format_unknown, + }; + + ea_register_init(&bgp_attr_table[i].class); + } +} /* * Attribute export @@ -1161,38 +1216,24 @@ bgp_attr_known(uint code) static inline void bgp_export_attr(struct bgp_export_state *s, eattr *a, ea_list *to) { - if (EA_PROTO(a->id) != PROTOCOL_BGP) + const union bgp_attr_desc *desc = bgp_find_attr_desc(a); + if (!desc) return; - uint code = EA_ID(a->id); - - if (bgp_attr_known(code)) - { - const struct bgp_attr_desc *desc = &bgp_attr_table[code]; - - /* The flags might have been zero if the attr was added by filters */ - a->flags = (a->flags & BAF_PARTIAL) | desc->flags; - - /* Set partial bit if new opt-trans attribute is attached to non-local route */ - if ((s->src != NULL) && (a->originated) && - (a->flags & BAF_OPTIONAL) && (a->flags & BAF_TRANSITIVE)) - a->flags |= BAF_PARTIAL; + /* The flags might have been zero if the attr was added locally */ + a->flags = (a->flags & BAF_PARTIAL) | desc->flags; - /* Call specific hook */ - CALL(desc->export, s, a); + /* Set partial bit if new opt-trans attribute is attached to non-local route */ + if ((s->src != NULL) && (a->originated) && + (a->flags & BAF_OPTIONAL) && (a->flags & BAF_TRANSITIVE)) + a->flags |= BAF_PARTIAL; - /* Attribute might become undefined in hook */ - if (a->undef) - return; - } - else - { - /* Don't re-export unknown non-transitive attributes */ - if (!(a->flags & BAF_TRANSITIVE)) - return; + /* Call specific hook */ + CALL(desc->export, s, a); - a->flags |= BAF_PARTIAL; - } + /* Attribute might become undefined in hook */ + if (a->undef) + return; /* Append updated attribute */ to->attrs[to->count++] = *a; @@ -1240,14 +1281,9 @@ bgp_export_attrs(struct bgp_export_state *s, const ea_list *a) static inline int bgp_encode_attr(struct bgp_write_state *s, eattr *a, byte *buf, uint size) { - ASSERT(EA_PROTO(a->id) == PROTOCOL_BGP); - - uint code = EA_ID(a->id); - - if (bgp_attr_known(code)) - return bgp_attr_table[code].encode(s, a, buf, size); - else - return bgp_encode_raw(s, a, buf, size); + const union bgp_attr_desc *desc = bgp_find_attr_desc(a); + ASSERT_DIE(desc); + return desc->encode(s, a, buf, size); } /** @@ -1312,7 +1348,7 @@ bgp_cluster_list_loopy(struct bgp_proto *p, ea_list *attrs) } static inline void -bgp_decode_attr(struct bgp_parse_state *s, uint code, uint flags, byte *data, uint len, ea_list **to) +bgp_decode_attr(struct bgp_parse_state *s, byte code, byte flags, byte *data, uint len, ea_list **to) { /* Handle duplicate attributes; RFC 7606 3 (g) */ if (BIT32_TEST(s->attrs_seen, code)) @@ -1324,24 +1360,15 @@ bgp_decode_attr(struct bgp_parse_state *s, uint code, uint flags, byte *data, ui } BIT32_SET(s->attrs_seen, code); - if (bgp_attr_known(code)) - { - const struct bgp_attr_desc *desc = &bgp_attr_table[code]; + ASSERT_DIE(bgp_attr_table[code].id); + const union bgp_attr_desc *desc = &bgp_attr_table[code]; - /* Handle conflicting flags; RFC 7606 3 (c) */ - if (((flags ^ desc->flags) & (BAF_OPTIONAL | BAF_TRANSITIVE)) && - !(desc->flags & BAF_DECODE_FLAGS)) - WITHDRAW("Malformed %s attribute - conflicting flags (%02x)", desc->name, flags); + /* Handle conflicting flags; RFC 7606 3 (c) */ + if (((flags ^ desc->flags) & (BAF_OPTIONAL | BAF_TRANSITIVE)) && + !(desc->flags & BAF_DECODE_FLAGS)) + WITHDRAW("Malformed %s attribute - conflicting flags (%02x, expected %02x)", desc->name, flags, desc->flags); - desc->decode(s, code, flags, data, len, to); - } - else /* Unknown attribute */ - { - if (!(flags & BAF_OPTIONAL)) - WITHDRAW("Unknown attribute (code %u) - conflicting flags (%02x)", code, flags); - - bgp_decode_unknown(s, code, flags, data, len, to); - } + desc->decode(s, code, flags, data, len, to); } /** @@ -1359,7 +1386,8 @@ bgp_decode_attrs(struct bgp_parse_state *s, byte *data, uint len) { struct bgp_proto *p = s->proto; ea_list *attrs = NULL; - uint code, flags, alen; + uint alen; + byte code, flags; byte *pos = data; /* Parse the attributes */ @@ -1704,7 +1732,7 @@ bgp_preexport(struct channel *c, rte *e) /* Handle well-known communities, RFC 1997 */ struct eattr *com; if (p->cf->interpret_communities && - (com = ea_find(e->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_COMMUNITY)))) + (com = ea_find(e->attrs->eattrs, BGP_EA_ID(BA_COMMUNITY)))) { const struct adata *d = com->u.ptr; @@ -1881,7 +1909,7 @@ bgp_rt_notify(struct proto *P, struct channel *C, const net_addr *n, rte *new, c static inline u32 bgp_get_neighbor(rte *r) { - eattr *e = ea_find(r->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + eattr *e = ea_find(r->attrs->eattrs, BGP_EA_ID(BA_AS_PATH)); u32 as; if (e && as_path_get_first_regular(e->u.ptr, &as)) @@ -1902,7 +1930,7 @@ rte_stale(rte *r) return 0; /* If staleness is unknown, compute and cache it */ - eattr *a = ea_find(r->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_COMMUNITY)); + eattr *a = ea_find(r->attrs->eattrs, BGP_EA_ID(BA_COMMUNITY)); if (a && int_set_contains(a->u.ptr, BGP_COMM_LLGR_STALE)) { r->pflags |= BGP_REF_STALE; @@ -1948,8 +1976,8 @@ bgp_rte_better(rte *new, rte *old) return 1; /* Start with local preferences */ - x = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); - y = ea_find(old->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); + x = ea_find(new->attrs->eattrs, BGP_EA_ID(BA_LOCAL_PREF)); + y = ea_find(old->attrs->eattrs, BGP_EA_ID(BA_LOCAL_PREF)); n = x ? x->u.data : new_bgp->cf->default_local_pref; o = y ? y->u.data : old_bgp->cf->default_local_pref; if (n > o) @@ -1968,8 +1996,8 @@ bgp_rte_better(rte *new, rte *old) /* RFC 4271 9.1.2.2. a) Use AS path lengths */ if (new_bgp->cf->compare_path_lengths || old_bgp->cf->compare_path_lengths) { - x = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); - y = ea_find(old->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + x = ea_find(new->attrs->eattrs, BGP_EA_ID(BA_AS_PATH)); + y = ea_find(old->attrs->eattrs, BGP_EA_ID(BA_AS_PATH)); n = x ? as_path_getlen(x->u.ptr) : AS_PATH_MAXLEN; o = y ? as_path_getlen(y->u.ptr) : AS_PATH_MAXLEN; if (n < o) @@ -1979,8 +2007,8 @@ bgp_rte_better(rte *new, rte *old) } /* RFC 4271 9.1.2.2. b) Use origins */ - x = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); - y = ea_find(old->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); + x = ea_find(new->attrs->eattrs, BGP_EA_ID(BA_ORIGIN)); + y = ea_find(old->attrs->eattrs, BGP_EA_ID(BA_ORIGIN)); n = x ? x->u.data : ORIGIN_INCOMPLETE; o = y ? y->u.data : ORIGIN_INCOMPLETE; if (n < o) @@ -2002,8 +2030,8 @@ bgp_rte_better(rte *new, rte *old) if (new_bgp->cf->med_metric || old_bgp->cf->med_metric || (bgp_get_neighbor(new) == bgp_get_neighbor(old))) { - x = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); - y = ea_find(old->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); + x = ea_find(new->attrs->eattrs, BGP_EA_ID(BA_MULTI_EXIT_DISC)); + y = ea_find(old->attrs->eattrs, BGP_EA_ID(BA_MULTI_EXIT_DISC)); n = x ? x->u.data : new_bgp->cf->default_med; o = y ? y->u.data : old_bgp->cf->default_med; if (n < o) @@ -2028,8 +2056,8 @@ bgp_rte_better(rte *new, rte *old) /* RFC 4271 9.1.2.2. f) Compare BGP identifiers */ /* RFC 4456 9. a) Use ORIGINATOR_ID instead of local neighbor ID */ - x = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID)); - y = ea_find(old->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID)); + x = ea_find(new->attrs->eattrs, BGP_EA_ID(BA_ORIGINATOR_ID)); + y = ea_find(old->attrs->eattrs, BGP_EA_ID(BA_ORIGINATOR_ID)); n = x ? x->u.data : new_bgp->remote_id; o = y ? y->u.data : old_bgp->remote_id; @@ -2046,8 +2074,8 @@ bgp_rte_better(rte *new, rte *old) return 0; /* RFC 4456 9. b) Compare cluster list lengths */ - x = ea_find(new->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_CLUSTER_LIST)); - y = ea_find(old->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_CLUSTER_LIST)); + x = ea_find(new->attrs->eattrs, BGP_EA_ID(BA_CLUSTER_LIST)); + y = ea_find(old->attrs->eattrs, BGP_EA_ID(BA_CLUSTER_LIST)); n = x ? int_set_get_size(x->u.ptr) : 0; o = y ? int_set_get_size(y->u.ptr) : 0; if (n < o) @@ -2081,8 +2109,8 @@ bgp_rte_mergable(rte *pri, rte *sec) return 0; /* Start with local preferences */ - x = ea_find(pri->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); - y = ea_find(sec->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); + x = ea_find(pri->attrs->eattrs, BGP_EA_ID(BA_LOCAL_PREF)); + y = ea_find(sec->attrs->eattrs, BGP_EA_ID(BA_LOCAL_PREF)); p = x ? x->u.data : pri_bgp->cf->default_local_pref; s = y ? y->u.data : sec_bgp->cf->default_local_pref; if (p != s) @@ -2091,8 +2119,8 @@ bgp_rte_mergable(rte *pri, rte *sec) /* RFC 4271 9.1.2.2. a) Use AS path lengths */ if (pri_bgp->cf->compare_path_lengths || sec_bgp->cf->compare_path_lengths) { - x = ea_find(pri->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); - y = ea_find(sec->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); + x = ea_find(pri->attrs->eattrs, BGP_EA_ID(BA_AS_PATH)); + y = ea_find(sec->attrs->eattrs, BGP_EA_ID(BA_AS_PATH)); p = x ? as_path_getlen(x->u.ptr) : AS_PATH_MAXLEN; s = y ? as_path_getlen(y->u.ptr) : AS_PATH_MAXLEN; @@ -2104,8 +2132,8 @@ bgp_rte_mergable(rte *pri, rte *sec) } /* RFC 4271 9.1.2.2. b) Use origins */ - x = ea_find(pri->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); - y = ea_find(sec->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); + x = ea_find(pri->attrs->eattrs, BGP_EA_ID(BA_ORIGIN)); + y = ea_find(sec->attrs->eattrs, BGP_EA_ID(BA_ORIGIN)); p = x ? x->u.data : ORIGIN_INCOMPLETE; s = y ? y->u.data : ORIGIN_INCOMPLETE; if (p != s) @@ -2115,8 +2143,8 @@ bgp_rte_mergable(rte *pri, rte *sec) if (pri_bgp->cf->med_metric || sec_bgp->cf->med_metric || (bgp_get_neighbor(pri) == bgp_get_neighbor(sec))) { - x = ea_find(pri->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); - y = ea_find(sec->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); + x = ea_find(pri->attrs->eattrs, BGP_EA_ID(BA_MULTI_EXIT_DISC)); + y = ea_find(sec->attrs->eattrs, BGP_EA_ID(BA_MULTI_EXIT_DISC)); p = x ? x->u.data : pri_bgp->cf->default_med; s = y ? y->u.data : sec_bgp->cf->default_med; if (p != s) @@ -2281,7 +2309,7 @@ bgp_rte_recalculate(rtable *table, net *net, rte *new, rte *old, rte *old_best) rte * bgp_rte_modify_stale(struct rte *r, struct linpool *pool) { - eattr *ea = ea_find(r->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_COMMUNITY)); + eattr *ea = ea_find(r->attrs->eattrs, BGP_EA_ID(BA_COMMUNITY)); const struct adata *ad = ea ? ea->u.ptr : NULL; uint flags = ea ? ea->flags : BAF_PARTIAL; @@ -2351,37 +2379,11 @@ bgp_process_as4_attrs(ea_list **attrs, struct linpool *pool) } } -int -bgp_get_attr(const eattr *a, byte *buf, int buflen) -{ - uint i = EA_ID(a->id); - const struct bgp_attr_desc *d; - int len; - - if (bgp_attr_known(i)) - { - d = &bgp_attr_table[i]; - len = bsprintf(buf, "%s", d->name); - buf += len; - if (d->format) - { - *buf++ = ':'; - *buf++ = ' '; - d->format(a, buf, buflen - len - 2); - return GA_FULL; - } - return GA_NAME; - } - - bsprintf(buf, "%02x%s", i, (a->flags & BAF_TRANSITIVE) ? " [t]" : ""); - return GA_NAME; -} - void bgp_get_route_info(rte *e, byte *buf) { - eattr *p = ea_find(e->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); - eattr *o = ea_find(e->attrs->eattrs, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); + eattr *p = ea_find(e->attrs->eattrs, BGP_EA_ID(BA_AS_PATH)); + eattr *o = ea_find(e->attrs->eattrs, BGP_EA_ID(BA_ORIGIN)); u32 origas; buf += bsprintf(buf, " (%d", e->attrs->pref); diff --git a/proto/bgp/bgp.c b/proto/bgp/bgp.c index 7c2ee642..84430287 100644 --- a/proto/bgp/bgp.c +++ b/proto/bgp/bgp.c @@ -2579,7 +2579,6 @@ struct channel_class channel_bgp = { struct protocol proto_bgp = { .name = "BGP", .template = "bgp%d", - .class = PROTOCOL_BGP, .preference = DEF_PREF_BGP, .channel_mask = NB_IP | NB_VPN | NB_FLOW, .proto_size = sizeof(struct bgp_proto), @@ -2591,7 +2590,6 @@ struct protocol proto_bgp = { .reconfigure = bgp_reconfigure, .copy_config = bgp_copy_config, .get_status = bgp_get_status, - .get_attr = bgp_get_attr, .get_route_info = bgp_get_route_info, .show_proto_info = bgp_show_proto_info }; @@ -2599,4 +2597,5 @@ struct protocol proto_bgp = { void bgp_build(void) { proto_build(&proto_bgp); + bgp_register_attrs(); } diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index cf6e2b6f..554681b4 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -538,17 +538,13 @@ rta_resolvable(rta *a) /* attrs.c */ -static inline eattr * -bgp_find_attr(ea_list *attrs, uint code) -{ - return ea_find(attrs, EA_CODE(PROTOCOL_BGP, code)); -} +eattr * +bgp_find_attr(ea_list *attrs, uint code); void bgp_set_attr_u32(ea_list **to, uint code, uint flags, u32 val); void bgp_set_attr_ptr(ea_list **to, uint code, uint flags, const struct adata *ad); void bgp_set_attr_data(ea_list **to, uint code, uint flags, void *data, uint len); - -#define bgp_unset_attr(to, code) ea_unset_attr(to, 0, code) +void bgp_unset_attr(ea_list **to, uint code); int bgp_encode_mp_reach_mrt(struct bgp_write_state *s, eattr *a, byte *buf, uint size); @@ -573,7 +569,6 @@ struct rte *bgp_rte_modify_stale(struct rte *r, struct linpool *pool); u32 bgp_rte_igp_metric(struct rte *); void bgp_rt_notify(struct proto *P, struct channel *C, const net_addr *n, rte *new, const rte *old); int bgp_preexport(struct channel *, struct rte *); -int bgp_get_attr(const struct eattr *e, byte *buf, int buflen); void bgp_get_route_info(struct rte *, byte *); int bgp_total_aigp_metric_(rta *a, u64 *metric, const struct adata **ad); @@ -590,6 +585,8 @@ bgp_total_aigp_metric(rta *a) return metric; } +void bgp_register_attrs(void); + /* packets.c */ @@ -626,26 +623,31 @@ void bgp_update_next_hop(struct bgp_export_state *s, eattr *a, ea_list **to); #define BAF_DECODE_FLAGS 0x0100 /* Private flag - attribute flags are handled by the decode hook */ -#define BA_ORIGIN 0x01 /* RFC 4271 */ /* WM */ -#define BA_AS_PATH 0x02 /* WM */ -#define BA_NEXT_HOP 0x03 /* WM */ -#define BA_MULTI_EXIT_DISC 0x04 /* ON */ -#define BA_LOCAL_PREF 0x05 /* WD */ -#define BA_ATOMIC_AGGR 0x06 /* WD */ -#define BA_AGGREGATOR 0x07 /* OT */ -#define BA_COMMUNITY 0x08 /* RFC 1997 */ /* OT */ -#define BA_ORIGINATOR_ID 0x09 /* RFC 4456 */ /* ON */ -#define BA_CLUSTER_LIST 0x0a /* RFC 4456 */ /* ON */ -#define BA_MP_REACH_NLRI 0x0e /* RFC 4760 */ -#define BA_MP_UNREACH_NLRI 0x0f /* RFC 4760 */ -#define BA_EXT_COMMUNITY 0x10 /* RFC 4360 */ -#define BA_AS4_PATH 0x11 /* RFC 6793 */ -#define BA_AS4_AGGREGATOR 0x12 /* RFC 6793 */ -#define BA_AIGP 0x1a /* RFC 7311 */ -#define BA_LARGE_COMMUNITY 0x20 /* RFC 8092 */ +enum bgp_attr_id { + BA_ORIGIN = 0x01, /* RFC 4271 */ /* WM */ + BA_AS_PATH = 0x02, /* WM */ + BA_NEXT_HOP = 0x03, /* WM */ + BA_MULTI_EXIT_DISC = 0x04, /* ON */ + BA_LOCAL_PREF = 0x05, /* WD */ + BA_ATOMIC_AGGR = 0x06, /* WD */ + BA_AGGREGATOR = 0x07, /* OT */ + BA_COMMUNITY = 0x08, /* RFC 1997 */ /* OT */ + BA_ORIGINATOR_ID = 0x09, /* RFC 4456 */ /* ON */ + BA_CLUSTER_LIST = 0x0a, /* RFC 4456 */ /* ON */ + BA_MP_REACH_NLRI = 0x0e, /* RFC 4760 */ + BA_MP_UNREACH_NLRI = 0x0f, /* RFC 4760 */ + BA_EXT_COMMUNITY = 0x10, /* RFC 4360 */ + BA_AS4_PATH = 0x11, /* RFC 6793 */ + BA_AS4_AGGREGATOR = 0x12, /* RFC 6793 */ + BA_AIGP = 0x1a, /* RFC 7311 */ + BA_LARGE_COMMUNITY = 0x20, /* RFC 8092 */ /* Bird's private internal BGP attributes */ -#define BA_MPLS_LABEL_STACK 0xfe /* MPLS label stack transfer attribute */ + BA_MPLS_LABEL_STACK = 0x100, /* MPLS label stack transfer attribute */ + +/* Maximum */ + BGP_ATTR_MAX, +}; /* BGP connection states */ diff --git a/proto/bgp/config.Y b/proto/bgp/config.Y index 6a78f79b..db261bbb 100644 --- a/proto/bgp/config.Y +++ b/proto/bgp/config.Y @@ -316,36 +316,6 @@ bgp_channel_end: bgp_proto_channel: bgp_channel_start bgp_channel_opt_list bgp_channel_end; - -dynamic_attr: BGP_ORIGIN - { $$ = f_new_dynamic_attr(T_ENUM_BGP_ORIGIN, EA_CODE(PROTOCOL_BGP, BA_ORIGIN)); } ; -dynamic_attr: BGP_PATH - { $$ = f_new_dynamic_attr(T_PATH, EA_CODE(PROTOCOL_BGP, BA_AS_PATH)); } ; -dynamic_attr: BGP_NEXT_HOP - { $$ = f_new_dynamic_attr(T_IP, EA_CODE(PROTOCOL_BGP, BA_NEXT_HOP)); } ; -dynamic_attr: BGP_MED - { $$ = f_new_dynamic_attr(T_INT, EA_CODE(PROTOCOL_BGP, BA_MULTI_EXIT_DISC)); } ; -dynamic_attr: BGP_LOCAL_PREF - { $$ = f_new_dynamic_attr(T_INT, EA_CODE(PROTOCOL_BGP, BA_LOCAL_PREF)); } ; -dynamic_attr: BGP_ATOMIC_AGGR - { $$ = f_new_dynamic_attr(T_OPAQUE, EA_CODE(PROTOCOL_BGP, BA_ATOMIC_AGGR)); } ; -dynamic_attr: BGP_AGGREGATOR - { $$ = f_new_dynamic_attr(T_OPAQUE, EA_CODE(PROTOCOL_BGP, BA_AGGREGATOR)); } ; -dynamic_attr: BGP_COMMUNITY - { $$ = f_new_dynamic_attr(T_CLIST, EA_CODE(PROTOCOL_BGP, BA_COMMUNITY)); } ; -dynamic_attr: BGP_ORIGINATOR_ID - { $$ = f_new_dynamic_attr(T_QUAD, EA_CODE(PROTOCOL_BGP, BA_ORIGINATOR_ID)); } ; -dynamic_attr: BGP_CLUSTER_LIST - { $$ = f_new_dynamic_attr(T_CLIST, EA_CODE(PROTOCOL_BGP, BA_CLUSTER_LIST)); } ; -dynamic_attr: BGP_EXT_COMMUNITY - { $$ = f_new_dynamic_attr(T_ECLIST, EA_CODE(PROTOCOL_BGP, BA_EXT_COMMUNITY)); } ; -dynamic_attr: BGP_AIGP - { $$ = f_new_dynamic_attr(T_OPAQUE, EA_CODE(PROTOCOL_BGP, BA_AIGP)); } ; -dynamic_attr: BGP_LARGE_COMMUNITY - { $$ = f_new_dynamic_attr(T_LCLIST, EA_CODE(PROTOCOL_BGP, BA_LARGE_COMMUNITY)); } ; - - - CF_ENUM(T_ENUM_BGP_ORIGIN, ORIGIN_, IGP, EGP, INCOMPLETE) CF_CODE diff --git a/proto/mrt/mrt.c b/proto/mrt/mrt.c index 6a186999..0f53dbe7 100644 --- a/proto/mrt/mrt.c +++ b/proto/mrt/mrt.c @@ -904,7 +904,6 @@ mrt_copy_config(struct proto_config *dest UNUSED, struct proto_config *src UNUSE struct protocol proto_mrt = { .name = "MRT", .template = "mrt%d", - .class = PROTOCOL_MRT, .proto_size = sizeof(struct mrt_proto), .config_size = sizeof(struct mrt_config), .init = mrt_init, diff --git a/proto/ospf/config.Y b/proto/ospf/config.Y index a8972d2c..136e1dcb 100644 --- a/proto/ospf/config.Y +++ b/proto/ospf/config.Y @@ -505,11 +505,6 @@ ospf_iface: ospf_iface_start ospf_iface_patt_list ospf_iface_opt_list { ospf_iface_finish(); } ; -dynamic_attr: OSPF_METRIC1 { $$ = f_new_dynamic_attr(T_INT, EA_OSPF_METRIC1); } ; -dynamic_attr: OSPF_METRIC2 { $$ = f_new_dynamic_attr(T_INT, EA_OSPF_METRIC2); } ; -dynamic_attr: OSPF_TAG { $$ = f_new_dynamic_attr(T_INT, EA_OSPF_TAG); } ; -dynamic_attr: OSPF_ROUTER_ID { $$ = f_new_dynamic_attr(T_QUAD, EA_OSPF_ROUTER_ID); } ; - CF_CLI_HELP(SHOW OSPF, ..., [[Show information about OSPF protocol]]); CF_CLI(SHOW OSPF, optproto, [<name>], [[Show information about OSPF protocol]]) { PROTO_WALK_CMD($3, &proto_ospf, p) ospf_sh(p); }; diff --git a/proto/ospf/ospf.c b/proto/ospf/ospf.c index ab77de02..e4522d41 100644 --- a/proto/ospf/ospf.c +++ b/proto/ospf/ospf.c @@ -106,6 +106,7 @@ #include <stdlib.h> #include "ospf.h" +#include "lib/macro.h" static int ospf_preexport(struct channel *C, rte *new); static void ospf_reload_routes(struct channel *C); @@ -386,7 +387,7 @@ ospf_init(struct proto_config *CF) static int ospf_rte_better(struct rte *new, struct rte *old) { - u32 new_metric1 = ea_get_int(new->attrs->eattrs, EA_OSPF_METRIC1, LSINFINITY); + u32 new_metric1 = ea_get_int(new->attrs->eattrs, &ea_ospf_metric1, LSINFINITY); if (new_metric1 == LSINFINITY) return 0; @@ -396,13 +397,13 @@ ospf_rte_better(struct rte *new, struct rte *old) if(new->attrs->source == RTS_OSPF_EXT2) { - u32 old_metric2 = ea_get_int(old->attrs->eattrs, EA_OSPF_METRIC2, LSINFINITY); - u32 new_metric2 = ea_get_int(new->attrs->eattrs, EA_OSPF_METRIC2, LSINFINITY); + u32 old_metric2 = ea_get_int(old->attrs->eattrs, &ea_ospf_metric2, LSINFINITY); + u32 new_metric2 = ea_get_int(new->attrs->eattrs, &ea_ospf_metric2, LSINFINITY); if(new_metric2 < old_metric2) return 1; if(new_metric2 > old_metric2) return 0; } - u32 old_metric1 = ea_get_int(old->attrs->eattrs, EA_OSPF_METRIC1, LSINFINITY); + u32 old_metric1 = ea_get_int(old->attrs->eattrs, &ea_ospf_metric1, LSINFINITY); if (new_metric1 < old_metric1) return 1; @@ -415,7 +416,7 @@ ospf_rte_igp_metric(struct rte *rt) if (rt->attrs->source == RTS_OSPF_EXT2) return IGP_METRIC_UNKNOWN; - return ea_get_int(rt->attrs->eattrs, EA_OSPF_METRIC1, LSINFINITY); + return ea_get_int(rt->attrs->eattrs, &ea_ospf_metric1, LSINFINITY); } void @@ -587,42 +588,26 @@ ospf_get_route_info(rte * rte, byte * buf) } buf += bsprintf(buf, " %s", type); - buf += bsprintf(buf, " (%d/%d", rte->attrs->pref, ea_get_int(rte->attrs->eattrs, EA_OSPF_METRIC1, LSINFINITY)); + buf += bsprintf(buf, " (%d/%d", rte->attrs->pref, ea_get_int(rte->attrs->eattrs, &ea_ospf_metric1, LSINFINITY)); if (rte->attrs->source == RTS_OSPF_EXT2) - buf += bsprintf(buf, "/%d", ea_get_int(rte->attrs->eattrs, EA_OSPF_METRIC2, LSINFINITY)); + buf += bsprintf(buf, "/%d", ea_get_int(rte->attrs->eattrs, &ea_ospf_metric2, LSINFINITY)); buf += bsprintf(buf, ")"); if (rte->attrs->source == RTS_OSPF_EXT1 || rte->attrs->source == RTS_OSPF_EXT2) { - eattr *ea = ea_find(rte->attrs->eattrs, EA_OSPF_TAG); + eattr *ea = ea_find(rte->attrs->eattrs, &ea_ospf_tag); if (ea && (ea->u.data > 0)) buf += bsprintf(buf, " [%x]", ea->u.data); } - eattr *ea = ea_find(rte->attrs->eattrs, EA_OSPF_ROUTER_ID); + eattr *ea = ea_find(rte->attrs->eattrs, &ea_ospf_router_id); if (ea) buf += bsprintf(buf, " [%R]", ea->u.data); } -static int -ospf_get_attr(const eattr * a, byte * buf, int buflen UNUSED) +static void +ospf_tag_format(const eattr * a, byte * buf, uint buflen) { - switch (a->id) - { - case EA_OSPF_METRIC1: - bsprintf(buf, "metric1"); - return GA_NAME; - case EA_OSPF_METRIC2: - bsprintf(buf, "metric2"); - return GA_NAME; - case EA_OSPF_TAG: - bsprintf(buf, "tag: 0x%08x", a->u.data); - return GA_FULL; - case EA_OSPF_ROUTER_ID: - bsprintf(buf, "router_id"); - return GA_NAME; - default: - return GA_UNKNOWN; - } + bsnprintf(buf, buflen, "0x%08x", a->u.data); } static void @@ -1520,7 +1505,6 @@ ospf_sh_lsadb(struct lsadb_show_data *ld) struct protocol proto_ospf = { .name = "OSPF", .template = "ospf%d", - .class = PROTOCOL_OSPF, .preference = DEF_PREF_OSPF, .channel_mask = NB_IP, .proto_size = sizeof(struct ospf_proto), @@ -1531,12 +1515,39 @@ struct protocol proto_ospf = { .shutdown = ospf_shutdown, .reconfigure = ospf_reconfigure, .get_status = ospf_get_status, - .get_attr = ospf_get_attr, .get_route_info = ospf_get_route_info }; +struct ea_class ea_ospf_metric1 = { + .name = "ospf_metric1", + .type = T_INT, +}; + +struct ea_class ea_ospf_metric2 = { + .name = "ospf_metric2", + .type = T_INT, +}; + +struct ea_class ea_ospf_tag = { + .name = "ospf_tag", + .type = T_INT, + .format = ospf_tag_format, +}; + +struct ea_class ea_ospf_router_id = { + .name = "ospf_router_id", + .type = T_QUAD, +}; + void ospf_build(void) { proto_build(&proto_ospf); + + EA_REGISTER_ALL( + &ea_ospf_metric1, + &ea_ospf_metric2, + &ea_ospf_tag, + &ea_ospf_router_id + ); } diff --git a/proto/ospf/ospf.h b/proto/ospf/ospf.h index 3d0d57d9..7bed5c85 100644 --- a/proto/ospf/ospf.h +++ b/proto/ospf/ospf.h @@ -939,12 +939,7 @@ struct lsadb_show_data { u32 router; /* Advertising router, 0 -> all */ }; - -#define EA_OSPF_METRIC1 EA_CODE(PROTOCOL_OSPF, 0) -#define EA_OSPF_METRIC2 EA_CODE(PROTOCOL_OSPF, 1) -#define EA_OSPF_TAG EA_CODE(PROTOCOL_OSPF, 2) -#define EA_OSPF_ROUTER_ID EA_CODE(PROTOCOL_OSPF, 3) - +extern struct ea_class ea_ospf_metric1, ea_ospf_metric2, ea_ospf_tag, ea_ospf_router_id; /* * For regular networks, neighbor address must match network prefix. diff --git a/proto/ospf/rt.c b/proto/ospf/rt.c index 900fe82c..a6d39d7f 100644 --- a/proto/ospf/rt.c +++ b/proto/ospf/rt.c @@ -2075,18 +2075,18 @@ again1: eattrs.l = (ea_list) {}; eattrs.a[eattrs.l.count++] = - EA_LITERAL_EMBEDDED(EA_OSPF_METRIC1, T_INT, 0, nf->n.metric1); + EA_LITERAL_EMBEDDED(&ea_ospf_metric1, 0, nf->n.metric1); if (nf->n.type == RTS_OSPF_EXT2) eattrs.a[eattrs.l.count++] = - EA_LITERAL_EMBEDDED(EA_OSPF_METRIC2, T_INT, 0, nf->n.metric2); + EA_LITERAL_EMBEDDED(&ea_ospf_metric2, 0, nf->n.metric2); if ((nf->n.type == RTS_OSPF_EXT1) || (nf->n.type == RTS_OSPF_EXT2)) eattrs.a[eattrs.l.count++] = - EA_LITERAL_EMBEDDED(EA_OSPF_TAG, T_INT, 0, nf->n.tag); + EA_LITERAL_EMBEDDED(&ea_ospf_tag, 0, nf->n.tag); eattrs.a[eattrs.l.count++] = - EA_LITERAL_EMBEDDED(EA_OSPF_ROUTER_ID, T_QUAD, 0, nf->n.rid); + EA_LITERAL_EMBEDDED(&ea_ospf_router_id, 0, nf->n.rid); a0.eattrs = &eattrs.l; diff --git a/proto/ospf/topology.c b/proto/ospf/topology.c index 24fdcc54..81207e68 100644 --- a/proto/ospf/topology.c +++ b/proto/ospf/topology.c @@ -1338,8 +1338,8 @@ ospf_rt_notify(struct proto *P, struct channel *ch UNUSED, const net_addr *n, rt /* Get route attributes */ rta *a = new->attrs; - eattr *m1a = ea_find(a->eattrs, EA_OSPF_METRIC1); - eattr *m2a = ea_find(a->eattrs, EA_OSPF_METRIC2); + eattr *m1a = ea_find(a->eattrs, &ea_ospf_metric1); + eattr *m2a = ea_find(a->eattrs, &ea_ospf_metric2); uint m1 = m1a ? m1a->u.data : 0; uint m2 = m2a ? m2a->u.data : 10000; @@ -1363,7 +1363,7 @@ ospf_rt_notify(struct proto *P, struct channel *ch UNUSED, const net_addr *n, rt uint ebit = m2a || !m1a; uint metric = ebit ? m2 : m1; - uint tag = ea_get_int(a->eattrs, EA_OSPF_TAG, 0); + uint tag = ea_get_int(a->eattrs, &ea_ospf_tag, 0); ip_addr fwd = IPA_NONE; if ((a->dest == RTD_UNICAST) && use_gw_for_fwaddr(p, a->nh.gw, a->nh.iface)) diff --git a/proto/perf/perf.c b/proto/perf/perf.c index 6ebfe361..13ce656a 100644 --- a/proto/perf/perf.c +++ b/proto/perf/perf.c @@ -305,7 +305,6 @@ perf_copy_config(struct proto_config *dest UNUSED, struct proto_config *src UNUS struct protocol proto_perf = { .name = "Perf", .template = "perf%d", - .class = PROTOCOL_PERF, .channel_mask = NB_IP, .proto_size = sizeof(struct perf_proto), .config_size = sizeof(struct perf_config), diff --git a/proto/pipe/pipe.c b/proto/pipe/pipe.c index e8c69a0e..b99df434 100644 --- a/proto/pipe/pipe.c +++ b/proto/pipe/pipe.c @@ -299,7 +299,6 @@ pipe_update_debug(struct proto *P) struct protocol proto_pipe = { .name = "Pipe", .template = "pipe%d", - .class = PROTOCOL_PIPE, .proto_size = sizeof(struct pipe_proto), .config_size = sizeof(struct pipe_config), .postconfig = pipe_postconfig, diff --git a/proto/radv/config.Y b/proto/radv/config.Y index 0a339cb4..f40fdcca 100644 --- a/proto/radv/config.Y +++ b/proto/radv/config.Y @@ -336,9 +336,6 @@ radv_sensitive: | SENSITIVE bool { $$ = $2; } ; -dynamic_attr: RA_PREFERENCE { $$ = f_new_dynamic_attr(T_ENUM_RA_PREFERENCE, EA_RA_PREFERENCE); } ; -dynamic_attr: RA_LIFETIME { $$ = f_new_dynamic_attr(T_INT, EA_RA_LIFETIME); } ; - CF_CODE CF_END diff --git a/proto/radv/radv.c b/proto/radv/radv.c index 24b1ce24..1f75b7c2 100644 --- a/proto/radv/radv.c +++ b/proto/radv/radv.c @@ -10,6 +10,7 @@ #include <stdlib.h> #include "radv.h" +#include "lib/macro.h" /** * DOC: Router Advertisements @@ -42,6 +43,8 @@ * RFC 6106 - DNS extensions (RDDNS, DNSSL) */ +static struct ea_class ea_radv_preference, ea_radv_lifetime; + static void radv_prune_prefixes(struct radv_iface *ifa); static void radv_prune_routes(struct radv_proto *p); @@ -444,11 +447,11 @@ radv_rt_notify(struct proto *P, struct channel *ch UNUSED, const net_addr *n, rt { /* Update */ - ea = ea_find(new->attrs->eattrs, EA_RA_PREFERENCE); + ea = ea_find(new->attrs->eattrs, &ea_radv_preference); uint preference = ea ? ea->u.data : RA_PREF_MEDIUM; uint preference_set = !!ea; - ea = ea_find(new->attrs->eattrs, EA_RA_LIFETIME); + ea = ea_find(new->attrs->eattrs, &ea_radv_lifetime); uint lifetime = ea ? ea->u.data : 0; uint lifetime_set = !!ea; @@ -738,27 +741,26 @@ radv_pref_str(u32 pref) } } -/* The buffer has some minimal size */ -static int -radv_get_attr(const eattr *a, byte *buf, int buflen UNUSED) +static void +radv_preference_format(const eattr *a, byte *buf, uint buflen) { - switch (a->id) - { - case EA_RA_PREFERENCE: - bsprintf(buf, "preference: %s", radv_pref_str(a->u.data)); - return GA_FULL; - case EA_RA_LIFETIME: - bsprintf(buf, "lifetime"); - return GA_NAME; - default: - return GA_UNKNOWN; - } + bsnprintf(buf, buflen, "%s", radv_pref_str(a->u.data)); } +static struct ea_class ea_radv_preference = { + .name = "radv_preference", + .type = T_ENUM_RA_PREFERENCE, + .format = radv_preference_format, +}; + +static struct ea_class ea_radv_lifetime = { + .name = "radv_lifetime", + .type = T_INT, +}; + struct protocol proto_radv = { .name = "RAdv", .template = "radv%d", - .class = PROTOCOL_RADV, .channel_mask = NB_IP6, .proto_size = sizeof(struct radv_proto), .config_size = sizeof(struct radv_config), @@ -769,11 +771,15 @@ struct protocol proto_radv = { .reconfigure = radv_reconfigure, .copy_config = radv_copy_config, .get_status = radv_get_status, - .get_attr = radv_get_attr }; void radv_build(void) { proto_build(&proto_radv); + + EA_REGISTER_ALL( + &ea_radv_preference, + &ea_radv_lifetime + ); } diff --git a/proto/radv/radv.h b/proto/radv/radv.h index 5cca3aca..c9219bda 100644 --- a/proto/radv/radv.h +++ b/proto/radv/radv.h @@ -195,10 +195,6 @@ struct radv_iface #define RA_PREF_HIGH 0x08 #define RA_PREF_MASK 0x18 -/* Attributes */ -#define EA_RA_PREFERENCE EA_CODE(PROTOCOL_RADV, 0) -#define EA_RA_LIFETIME EA_CODE(PROTOCOL_RADV, 1) - #ifdef LOCAL_DEBUG #define RADV_FORCE_DEBUG 1 #else diff --git a/proto/rip/config.Y b/proto/rip/config.Y index 3934d337..234e9029 100644 --- a/proto/rip/config.Y +++ b/proto/rip/config.Y @@ -190,9 +190,6 @@ rip_iface: rip_iface_start iface_patt_list_nopx rip_iface_opt_list rip_iface_finish; -dynamic_attr: RIP_METRIC { $$ = f_new_dynamic_attr(T_INT, EA_RIP_METRIC); } ; -dynamic_attr: RIP_TAG { $$ = f_new_dynamic_attr(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]]) diff --git a/proto/rip/rip.c b/proto/rip/rip.c index b21a416b..03e0f4fb 100644 --- a/proto/rip/rip.c +++ b/proto/rip/rip.c @@ -78,6 +78,7 @@ #include <stdlib.h> #include "rip.h" +#include "lib/macro.h" static inline void rip_lock_neighbor(struct rip_neighbor *n); @@ -88,6 +89,7 @@ static inline void rip_iface_kick_timer(struct rip_iface *ifa); static void rip_iface_timer(timer *timer); static void rip_trigger_update(struct rip_proto *p); +static struct ea_class ea_rip_metric, ea_rip_tag, ea_rip_from; /* * RIP routes @@ -200,9 +202,9 @@ rip_announce_rte(struct rip_proto *p, struct rip_entry *en) } ea_block = { .l.count = 3, .a = { - EA_LITERAL_EMBEDDED(EA_RIP_METRIC, T_INT, 0, rt_metric), - EA_LITERAL_EMBEDDED(EA_RIP_TAG, T_INT, 0, rt_tag), - EA_LITERAL_DIRECT_ADATA(EA_RIP_FROM, T_IFACE, 0, &ea_block.riad.ad), + EA_LITERAL_EMBEDDED(&ea_rip_metric, 0, rt_metric), + EA_LITERAL_EMBEDDED(&ea_rip_tag, 0, rt_tag), + EA_LITERAL_DIRECT_ADATA(&ea_rip_from, 0, &ea_block.riad.ad), }, .riad = { .ad = { .length = sizeof(struct rip_iface_adata) - sizeof(struct adata) }, @@ -325,9 +327,9 @@ rip_rt_notify(struct proto *P, struct channel *ch UNUSED, const net_addr *net, s if (new) { /* Update */ - u32 rt_tag = ea_get_int(new->attrs->eattrs, EA_RIP_TAG, 0); - u32 rt_metric = ea_get_int(new->attrs->eattrs, EA_RIP_METRIC, 1); - const eattr *rie = ea_find(new->attrs->eattrs, EA_RIP_FROM); + u32 rt_tag = ea_get_int(new->attrs->eattrs, &ea_rip_tag, 0); + u32 rt_metric = ea_get_int(new->attrs->eattrs, &ea_rip_metric, 1); + const eattr *rie = ea_find(new->attrs->eattrs, &ea_rip_from); struct iface *rt_from = rie ? ((struct rip_iface_adata *) rie->u.ptr)->iface : NULL; if (rt_metric > p->infinity) @@ -1094,8 +1096,8 @@ rip_rte_better(struct rte *new, struct rte *old) ASSERT_DIE(new->src == old->src); struct rip_proto *p = (struct rip_proto *) new->src->proto; - u32 new_metric = ea_get_int(new->attrs->eattrs, EA_RIP_METRIC, p->infinity); - u32 old_metric = ea_get_int(old->attrs->eattrs, EA_RIP_METRIC, p->infinity); + u32 new_metric = ea_get_int(new->attrs->eattrs, &ea_rip_metric, p->infinity); + u32 old_metric = ea_get_int(old->attrs->eattrs, &ea_rip_metric, p->infinity); return new_metric < old_metric; } @@ -1103,7 +1105,7 @@ rip_rte_better(struct rte *new, struct rte *old) static u32 rip_rte_igp_metric(struct rte *rt) { - return ea_get_int(rt->attrs->eattrs, EA_RIP_METRIC, IGP_METRIC_UNKNOWN); + return ea_get_int(rt->attrs->eattrs, &ea_rip_metric, IGP_METRIC_UNKNOWN); } static void @@ -1204,8 +1206,8 @@ static void rip_get_route_info(rte *rte, byte *buf) { struct rip_proto *p = (struct rip_proto *) rte->src->proto; - u32 rt_metric = ea_get_int(rte->attrs->eattrs, EA_RIP_METRIC, p->infinity); - u32 rt_tag = ea_get_int(rte->attrs->eattrs, EA_RIP_TAG, 0); + u32 rt_metric = ea_get_int(rte->attrs->eattrs, &ea_rip_metric, p->infinity); + u32 rt_tag = ea_get_int(rte->attrs->eattrs, &ea_rip_tag, 0); buf += bsprintf(buf, " (%d/%d)", rte->attrs->pref, rt_metric); @@ -1213,23 +1215,28 @@ rip_get_route_info(rte *rte, byte *buf) bsprintf(buf, " [%04x]", rt_tag); } -static int -rip_get_attr(const eattr *a, byte *buf, int buflen UNUSED) +static void +rip_tag_format(const eattr *a, byte *buf, uint buflen) { - switch (a->id) - { - case EA_RIP_METRIC: - bsprintf(buf, "metric: %d", a->u.data); - return GA_FULL; + bsnprintf(buf, buflen, "tag: %04x", a->u.data); +} - case EA_RIP_TAG: - bsprintf(buf, "tag: %04x", a->u.data); - return GA_FULL; +static struct ea_class ea_rip_metric = { + .name = "rip_metric", + .type = T_INT, +}; - default: - return GA_UNKNOWN; - } -} +static struct ea_class ea_rip_tag = { + .name = "rip_tag", + .type = T_INT, + .format = rip_tag_format, +}; + +static struct ea_class ea_rip_from = { + .name = "rip_from", + .type = T_IFACE, + .readonly = 1, +}; void rip_show_interfaces(struct proto *P, const char *iff) @@ -1333,7 +1340,6 @@ rip_dump(struct proto *P) struct protocol proto_rip = { .name = "RIP", .template = "rip%d", - .class = PROTOCOL_RIP, .preference = DEF_PREF_RIP, .channel_mask = NB_IP, .proto_size = sizeof(struct rip_proto), @@ -1345,11 +1351,16 @@ struct protocol proto_rip = { .shutdown = rip_shutdown, .reconfigure = rip_reconfigure, .get_route_info = rip_get_route_info, - .get_attr = rip_get_attr }; void rip_build(void) { proto_build(&proto_rip); + + EA_REGISTER_ALL( + &ea_rip_metric, + &ea_rip_tag, + &ea_rip_from + ); } diff --git a/proto/rip/rip.h b/proto/rip/rip.h index a6fa3326..a01f8d3b 100644 --- a/proto/rip/rip.h +++ b/proto/rip/rip.h @@ -195,10 +195,6 @@ struct rip_rte #define RIP_ENTRY_VALID 1 /* Valid outgoing route */ #define RIP_ENTRY_STALE 2 /* Stale outgoing route, waiting for GC */ -#define EA_RIP_METRIC EA_CODE(PROTOCOL_RIP, 0) -#define EA_RIP_TAG EA_CODE(PROTOCOL_RIP, 1) -#define EA_RIP_FROM EA_CODE(PROTOCOL_RIP, 2) - static inline int rip_is_v2(struct rip_proto *p) { return p->rip2; } diff --git a/proto/rpki/rpki.c b/proto/rpki/rpki.c index f1d32628..153e5293 100644 --- a/proto/rpki/rpki.c +++ b/proto/rpki/rpki.c @@ -952,7 +952,6 @@ rpki_copy_config(struct proto_config *dest UNUSED, struct proto_config *src UNUS struct protocol proto_rpki = { .name = "RPKI", .template = "rpki%d", - .class = PROTOCOL_RPKI, .preference = DEF_PREF_RPKI, .proto_size = sizeof(struct rpki_proto), .config_size = sizeof(struct rpki_config), diff --git a/proto/static/static.c b/proto/static/static.c index 87d795ee..2fc8e788 100644 --- a/proto/static/static.c +++ b/proto/static/static.c @@ -397,16 +397,16 @@ static_reload_routes(struct channel *C) static int static_rte_better(rte *new, rte *old) { - u32 n = ea_get_int(new->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); - u32 o = ea_get_int(old->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); + u32 n = ea_get_int(new->attrs->eattrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); + u32 o = ea_get_int(old->attrs->eattrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); return n < o; } static int static_rte_mergable(rte *pri, rte *sec) { - u32 a = ea_get_int(pri->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); - u32 b = ea_get_int(sec->attrs->eattrs, EA_GEN_IGP_METRIC, IGP_METRIC_UNKNOWN); + u32 a = ea_get_int(pri->attrs->eattrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); + u32 b = ea_get_int(sec->attrs->eattrs, &ea_gen_igp_metric, IGP_METRIC_UNKNOWN); return a == b; } @@ -694,7 +694,7 @@ static_copy_config(struct proto_config *dest, struct proto_config *src) static void static_get_route_info(rte *rte, byte *buf) { - eattr *a = ea_find(rte->attrs->eattrs, EA_GEN_IGP_METRIC); + eattr *a = ea_find(rte->attrs->eattrs, &ea_gen_igp_metric); if (a) buf += bsprintf(buf, " (%d/%u)", rte->attrs->pref, a->u.data); else @@ -752,7 +752,6 @@ static_show(struct proto *P) struct protocol proto_static = { .name = "Static", .template = "static%d", - .class = PROTOCOL_STATIC, .preference = DEF_PREF_STATIC, .channel_mask = NB_ANY, .proto_size = sizeof(struct static_proto), diff --git a/sysdep/linux/krt-sys.h b/sysdep/linux/krt-sys.h index 8897f889..aa90f6e4 100644 --- a/sysdep/linux/krt-sys.h +++ b/sysdep/linux/krt-sys.h @@ -34,38 +34,6 @@ static inline struct ifa * kif_get_primary_ip(struct iface *i UNUSED) { return N #define KRT_ALLOW_MERGE_PATHS 1 -#define EA_KRT_PREFSRC EA_CODE(PROTOCOL_KERNEL, 0x10) -#define EA_KRT_REALM EA_CODE(PROTOCOL_KERNEL, 0x11) -#define EA_KRT_SCOPE EA_CODE(PROTOCOL_KERNEL, 0x12) - - -#define KRT_METRICS_MAX 0x10 /* RTAX_QUICKACK+1 */ -#define KRT_METRICS_OFFSET 0x20 /* Offset of EA_KRT_* vs RTAX_* */ - -#define KRT_FEATURES_MAX 4 - -/* - * Following attributes are parts of RTA_METRICS kernel route attribute, their - * ids must be consistent with their RTAX_* constants (+ KRT_METRICS_OFFSET) - */ -#define EA_KRT_METRICS EA_CODE(PROTOCOL_KERNEL, 0x20) /* Dummy one */ -#define EA_KRT_LOCK EA_CODE(PROTOCOL_KERNEL, 0x21) -#define EA_KRT_MTU EA_CODE(PROTOCOL_KERNEL, 0x22) -#define EA_KRT_WINDOW EA_CODE(PROTOCOL_KERNEL, 0x23) -#define EA_KRT_RTT EA_CODE(PROTOCOL_KERNEL, 0x24) -#define EA_KRT_RTTVAR EA_CODE(PROTOCOL_KERNEL, 0x25) -#define EA_KRT_SSTRESH EA_CODE(PROTOCOL_KERNEL, 0x26) -#define EA_KRT_CWND EA_CODE(PROTOCOL_KERNEL, 0x27) -#define EA_KRT_ADVMSS EA_CODE(PROTOCOL_KERNEL, 0x28) -#define EA_KRT_REORDERING EA_CODE(PROTOCOL_KERNEL, 0x29) -#define EA_KRT_HOPLIMIT EA_CODE(PROTOCOL_KERNEL, 0x2a) -#define EA_KRT_INITCWND EA_CODE(PROTOCOL_KERNEL, 0x2b) -#define EA_KRT_FEATURES EA_CODE(PROTOCOL_KERNEL, 0x2c) -#define EA_KRT_RTO_MIN EA_CODE(PROTOCOL_KERNEL, 0x2d) -#define EA_KRT_INITRWND EA_CODE(PROTOCOL_KERNEL, 0x2e) -#define EA_KRT_QUICKACK EA_CODE(PROTOCOL_KERNEL, 0x2f) - - struct krt_params { u32 table_id; /* Kernel table ID we sync with */ u32 metric; /* Kernel metric used for all routes */ diff --git a/sysdep/linux/netlink.Y b/sysdep/linux/netlink.Y index f31b88c7..17e17789 100644 --- a/sysdep/linux/netlink.Y +++ b/sysdep/linux/netlink.Y @@ -28,39 +28,22 @@ kern_sys_item: | NETLINK RX BUFFER expr { THIS_KRT->sys.netlink_rx_buffer = $4; } ; -dynamic_attr: KRT_PREFSRC { $$ = f_new_dynamic_attr(T_IP, EA_KRT_PREFSRC); } ; -dynamic_attr: KRT_REALM { $$ = f_new_dynamic_attr(T_INT, EA_KRT_REALM); } ; -dynamic_attr: KRT_SCOPE { $$ = f_new_dynamic_attr(T_INT, EA_KRT_SCOPE); } ; - -dynamic_attr: KRT_MTU { $$ = f_new_dynamic_attr(T_INT, EA_KRT_MTU); } ; -dynamic_attr: KRT_WINDOW { $$ = f_new_dynamic_attr(T_INT, EA_KRT_WINDOW); } ; -dynamic_attr: KRT_RTT { $$ = f_new_dynamic_attr(T_INT, EA_KRT_RTT); } ; -dynamic_attr: KRT_RTTVAR { $$ = f_new_dynamic_attr(T_INT, EA_KRT_RTTVAR); } ; -dynamic_attr: KRT_SSTRESH { $$ = f_new_dynamic_attr(T_INT, EA_KRT_SSTRESH); } ; -dynamic_attr: KRT_CWND { $$ = f_new_dynamic_attr(T_INT, EA_KRT_CWND); } ; -dynamic_attr: KRT_ADVMSS { $$ = f_new_dynamic_attr(T_INT, EA_KRT_ADVMSS); } ; -dynamic_attr: KRT_REORDERING { $$ = f_new_dynamic_attr(T_INT, EA_KRT_REORDERING); } ; -dynamic_attr: KRT_HOPLIMIT { $$ = f_new_dynamic_attr(T_INT, EA_KRT_HOPLIMIT); } ; -dynamic_attr: KRT_INITCWND { $$ = f_new_dynamic_attr(T_INT, EA_KRT_INITCWND); } ; -dynamic_attr: KRT_RTO_MIN { $$ = f_new_dynamic_attr(T_INT, EA_KRT_RTO_MIN); } ; -dynamic_attr: KRT_INITRWND { $$ = f_new_dynamic_attr(T_INT, EA_KRT_INITRWND); } ; -dynamic_attr: KRT_QUICKACK { $$ = f_new_dynamic_attr(T_INT, EA_KRT_QUICKACK); } ; - /* Bits of EA_KRT_LOCK, based on RTAX_* constants */ -attr_bit: KRT_LOCK_MTU { $$ = f_new_dynamic_attr_bit(2, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_WINDOW { $$ = f_new_dynamic_attr_bit(3, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_RTT { $$ = f_new_dynamic_attr_bit(4, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_RTTVAR { $$ = f_new_dynamic_attr_bit(5, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_SSTRESH { $$ = f_new_dynamic_attr_bit(6, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_CWND { $$ = f_new_dynamic_attr_bit(7, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_ADVMSS { $$ = f_new_dynamic_attr_bit(8, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_REORDERING { $$ = f_new_dynamic_attr_bit(9, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_HOPLIMIT { $$ = f_new_dynamic_attr_bit(10, EA_KRT_LOCK); } ; -attr_bit: KRT_LOCK_RTO_MIN { $$ = f_new_dynamic_attr_bit(13, EA_KRT_LOCK); } ; - -attr_bit: KRT_FEATURE_ECN { $$ = f_new_dynamic_attr_bit(0, EA_KRT_FEATURES); } ; -attr_bit: KRT_FEATURE_ALLFRAG { $$ = f_new_dynamic_attr_bit(3, EA_KRT_FEATURES); } ; +attr_bit: KRT_LOCK_MTU { $$ = f_new_dynamic_attr_bit(2, "krt_lock"); } ; +attr_bit: KRT_LOCK_WINDOW { $$ = f_new_dynamic_attr_bit(3, "krt_lock"); } ; +attr_bit: KRT_LOCK_RTT { $$ = f_new_dynamic_attr_bit(4, "krt_lock"); } ; +attr_bit: KRT_LOCK_RTTVAR { $$ = f_new_dynamic_attr_bit(5, "krt_lock"); } ; +attr_bit: KRT_LOCK_SSTRESH { $$ = f_new_dynamic_attr_bit(6, "krt_lock"); } ; +attr_bit: KRT_LOCK_CWND { $$ = f_new_dynamic_attr_bit(7, "krt_lock"); } ; +attr_bit: KRT_LOCK_ADVMSS { $$ = f_new_dynamic_attr_bit(8, "krt_lock"); } ; +attr_bit: KRT_LOCK_REORDERING { $$ = f_new_dynamic_attr_bit(9, "krt_lock"); } ; +attr_bit: KRT_LOCK_HOPLIMIT { $$ = f_new_dynamic_attr_bit(10, "krt_lock"); } ; +attr_bit: KRT_LOCK_RTO_MIN { $$ = f_new_dynamic_attr_bit(13, "krt_lock"); } ; + +/* Bits of EA_KRT_FEATURES */ +attr_bit: KRT_FEATURE_ECN { $$ = f_new_dynamic_attr_bit(0, "krt_features"); } ; +attr_bit: KRT_FEATURE_ALLFRAG { $$ = f_new_dynamic_attr_bit(3, "krt_features"); } ; CF_CODE diff --git a/sysdep/linux/netlink.c b/sysdep/linux/netlink.c index 7702c815..f7c5943b 100644 --- a/sysdep/linux/netlink.c +++ b/sysdep/linux/netlink.c @@ -26,6 +26,7 @@ #include "lib/socket.h" #include "lib/string.h" #include "lib/hash.h" +#include "lib/macro.h" #include "conf/conf.h" #include <asm/types.h> @@ -122,6 +123,101 @@ struct nl_parse_state }; /* + * Netlink eattr definitions + */ + +#define KRT_METRICS_MAX ARRAY_SIZE(ea_krt_metrics) +#define KRT_FEATURES_MAX 4 + +static void krt_bitfield_format(const eattr *e, byte *buf, uint buflen); + +static struct ea_class + ea_krt_prefsrc = { + .name = "krt_prefsrc", + .type = T_IP, + }, + ea_krt_realm = { + .name = "krt_realm", + .type = T_INT, + }, + ea_krt_scope = { + .name = "krt_scope", + .type = T_INT, + }; + +static struct ea_class ea_krt_metrics[] = { + [RTAX_LOCK] = { + .name = "krt_lock", + .type = T_INT, + .format = krt_bitfield_format, + }, + [RTAX_FEATURES] = { + .name = "krt_features", + .type = T_INT, + .format = krt_bitfield_format, + }, +#define KRT_METRIC_INT(_rtax, _name) [_rtax] = { .name = _name, .type = T_INT } + KRT_METRIC_INT(RTAX_MTU, "krt_mtu"), + KRT_METRIC_INT(RTAX_WINDOW, "krt_window"), + KRT_METRIC_INT(RTAX_RTT, "krt_rtt"), + KRT_METRIC_INT(RTAX_RTTVAR, "krt_rttvar"), + KRT_METRIC_INT(RTAX_SSTHRESH, "krt_sstresh"), + KRT_METRIC_INT(RTAX_CWND, "krt_cwnd"), + KRT_METRIC_INT(RTAX_ADVMSS, "krt_advmss"), + KRT_METRIC_INT(RTAX_REORDERING, "krt_reordering"), + KRT_METRIC_INT(RTAX_HOPLIMIT, "krt_hoplimit"), + KRT_METRIC_INT(RTAX_INITCWND, "krt_initcwnd"), + KRT_METRIC_INT(RTAX_RTO_MIN, "krt_rto_min"), + KRT_METRIC_INT(RTAX_INITRWND, "krt_initrwnd"), + KRT_METRIC_INT(RTAX_QUICKACK, "krt_quickack"), +#undef KRT_METRIC_INT +}; + +static const char *krt_metrics_names[KRT_METRICS_MAX] = { + NULL, "lock", "mtu", "window", "rtt", "rttvar", "sstresh", "cwnd", "advmss", + "reordering", "hoplimit", "initcwnd", "features", "rto_min", "initrwnd", "quickack" +}; + +static const char *krt_features_names[KRT_FEATURES_MAX] = { + "ecn", NULL, NULL, "allfrag" +}; + +static void +krt_bitfield_format(const eattr *a, byte *buf, uint buflen) +{ + if (a->id == ea_krt_metrics[RTAX_LOCK].id) + ea_format_bitfield(a, buf, buflen, krt_metrics_names, 2, KRT_METRICS_MAX); + else if (a->id == ea_krt_metrics[RTAX_FEATURES].id) + ea_format_bitfield(a, buf, buflen, krt_features_names, 0, KRT_FEATURES_MAX); +} + +static void +nl_ea_register(void) +{ + EA_REGISTER_ALL( + &ea_krt_prefsrc, + &ea_krt_realm, + &ea_krt_scope + ); + + for (uint i = 0; i < KRT_METRICS_MAX; i++) + { + if (!ea_krt_metrics[i].name) + ea_krt_metrics[i] = (struct ea_class) { + .name = mb_sprintf(&root_pool, "krt_metric_%d", i), + .type = T_INT, + }; + + ea_register_init(&ea_krt_metrics[i]); + } + + for (uint i = 1; i < KRT_METRICS_MAX; i++) + ASSERT_DIE(ea_krt_metrics[i].id == ea_krt_metrics[0].id + i); +} + + + +/* * Synchronous Netlink interface */ @@ -734,7 +830,7 @@ static void nl_add_multipath(struct nlmsghdr *h, uint bufsize, struct nexthop *nh, int af, ea_list *eattrs) { struct rtattr *a = nl_open_attr(h, bufsize, RTA_MULTIPATH); - eattr *flow = ea_find(eattrs, EA_KRT_REALM); + eattr *flow = ea_find(eattrs, &ea_krt_realm); for (; nh; nh = nh->next) { @@ -1398,7 +1494,7 @@ nl_send_route(struct krt_proto *p, const rte *e, int op, int dest, struct nextho priority = 0; else if (KRT_CF->sys.metric) priority = KRT_CF->sys.metric; - else if ((op != NL_OP_DELETE) && (ea = ea_find(eattrs, EA_KRT_METRIC))) + else if ((op != NL_OP_DELETE) && (ea = ea_find(eattrs, &ea_krt_metric))) priority = ea->u.data; if (priority) @@ -1411,15 +1507,15 @@ nl_send_route(struct krt_proto *p, const rte *e, int op, int dest, struct nextho /* Default scope is LINK for device routes, UNIVERSE otherwise */ if (p->af == AF_MPLS) r->r.rtm_scope = RT_SCOPE_UNIVERSE; - else if (ea = ea_find(eattrs, EA_KRT_SCOPE)) + else if (ea = ea_find(eattrs, &ea_krt_scope)) r->r.rtm_scope = ea->u.data; else r->r.rtm_scope = (dest == RTD_UNICAST && ipa_zero(nh->gw)) ? RT_SCOPE_LINK : RT_SCOPE_UNIVERSE; - if (ea = ea_find(eattrs, EA_KRT_PREFSRC)) + if (ea = ea_find(eattrs, &ea_krt_prefsrc)) nl_add_attr_ipa(&r->h, rsize, RTA_PREFSRC, *(ip_addr *)ea->u.ptr->data); - if (ea = ea_find(eattrs, EA_KRT_REALM)) + if (ea = ea_find(eattrs, &ea_krt_realm)) nl_add_attr_u32(&r->h, rsize, RTA_FLOW, ea->u.data); @@ -1427,9 +1523,9 @@ nl_send_route(struct krt_proto *p, const rte *e, int op, int dest, struct nextho metrics[0] = 0; struct ea_walk_state ews = { .eattrs = eattrs }; - while (ea = ea_walk(&ews, EA_KRT_METRICS, KRT_METRICS_MAX)) + while (ea = ea_walk(&ews, ea_krt_metrics[0].id, KRT_METRICS_MAX)) { - int id = ea->id - EA_KRT_METRICS; + int id = ea->id - ea_krt_metrics[0].id; metrics[0] |= 1 << id; metrics[id] = ea->u.data; } @@ -1582,21 +1678,15 @@ nl_announce_route(struct nl_parse_state *s) .net = s->net, }; - EA_LOCAL_LIST(2) ea0 = { + EA_LOCAL_LIST(2) ea = { .l = { .count = 2, .next = e0.attrs->eattrs }, - .a[0] = (eattr) { - .id = EA_KRT_SOURCE, - .type = T_INT, - .u.data = s->krt_proto, - }, - .a[1] = (eattr) { - .id = EA_KRT_METRIC, - .type = T_INT, - .u.data = s->krt_metric, + .a = { + EA_LITERAL_EMBEDDED(&ea_krt_source, 0, s->krt_proto), + EA_LITERAL_EMBEDDED(&ea_krt_metric, 0, s->krt_metric), }, }; - e0.attrs->eattrs = &ea0.l; + e0.attrs->eattrs = &ea.l; if (s->scan) krt_got_route(s->proto, &e0, s->krt_src); @@ -1865,20 +1955,20 @@ nl_parse_route(struct nl_parse_state *s, struct nlmsghdr *h) if (i->rtm_scope != def_scope) ea_set_attr(&ra->eattrs, - EA_LITERAL_EMBEDDED(EA_KRT_SCOPE, T_INT, 0, i->rtm_scope)); + EA_LITERAL_EMBEDDED(&ea_krt_scope, 0, i->rtm_scope)); if (a[RTA_PREFSRC]) - { - ip_addr ps = rta_get_ipa(a[RTA_PREFSRC]); + { + ip_addr ps = rta_get_ipa(a[RTA_PREFSRC]); - ea_set_attr(&ra->eattrs, - EA_LITERAL_STORE_ADATA(EA_KRT_PREFSRC, T_IP, 0, &ps, sizeof(ps))); - } + ea_set_attr(&ra->eattrs, + EA_LITERAL_STORE_ADATA(&ea_krt_prefsrc, 0, &ps, sizeof(ps))); + } /* Can be set per-route or per-nexthop */ if (s->rta_flow) ea_set_attr(&ra->eattrs, - EA_LITERAL_EMBEDDED(EA_KRT_REALM, T_INT, 0, s->rta_flow)); + EA_LITERAL_EMBEDDED(&ea_krt_realm, 0, s->rta_flow)); if (a[RTA_METRICS]) { @@ -1889,11 +1979,10 @@ nl_parse_route(struct nl_parse_state *s, struct nlmsghdr *h) return; } - for (int t = 1; t < KRT_METRICS_MAX; t++) + for (uint t = 1; t < KRT_METRICS_MAX; t++) if (metrics[0] & (1 << t)) ea_set_attr(&ra->eattrs, - EA_LITERAL_EMBEDDED(EA_CODE(PROTOCOL_KERNEL, KRT_METRICS_OFFSET + t), - T_INT, 0, metrics[t])); + EA_LITERAL_EMBEDDED(&ea_krt_metrics[t], 0, metrics[t])); } /* @@ -2133,6 +2222,8 @@ krt_sys_io_init(void) { nl_linpool = lp_new_default(krt_pool); HASH_INIT(nl_table_map, krt_pool, 6); + + nl_ea_register(); } int @@ -2186,56 +2277,6 @@ krt_sys_copy_config(struct krt_config *d, struct krt_config *s) d->sys.metric = s->sys.metric; } -static const char *krt_metrics_names[KRT_METRICS_MAX] = { - NULL, "lock", "mtu", "window", "rtt", "rttvar", "sstresh", "cwnd", "advmss", - "reordering", "hoplimit", "initcwnd", "features", "rto_min", "initrwnd", "quickack" -}; - -static const char *krt_features_names[KRT_FEATURES_MAX] = { - "ecn", NULL, NULL, "allfrag" -}; - -int -krt_sys_get_attr(const eattr *a, byte *buf, int buflen UNUSED) -{ - switch (a->id) - { - case EA_KRT_PREFSRC: - bsprintf(buf, "prefsrc"); - return GA_NAME; - - case EA_KRT_REALM: - bsprintf(buf, "realm"); - return GA_NAME; - - case EA_KRT_SCOPE: - bsprintf(buf, "scope"); - return GA_NAME; - - case EA_KRT_LOCK: - buf += bsprintf(buf, "lock:"); - ea_format_bitfield(a, buf, buflen, krt_metrics_names, 2, KRT_METRICS_MAX); - return GA_FULL; - - case EA_KRT_FEATURES: - buf += bsprintf(buf, "features:"); - ea_format_bitfield(a, buf, buflen, krt_features_names, 0, KRT_FEATURES_MAX); - return GA_FULL; - - default:; - int id = (int)EA_ID(a->id) - KRT_METRICS_OFFSET; - if (id > 0 && id < KRT_METRICS_MAX) - { - bsprintf(buf, "%s", krt_metrics_names[id]); - return GA_NAME; - } - - return GA_UNKNOWN; - } -} - - - void kif_sys_start(struct kif_proto *p UNUSED) { diff --git a/sysdep/unix/krt.Y b/sysdep/unix/krt.Y index 2a3f41de..9300e9c8 100644 --- a/sysdep/unix/krt.Y +++ b/sysdep/unix/krt.Y @@ -122,9 +122,6 @@ kif_iface: kif_iface_start iface_patt_list_nopx kif_iface_opt_list; -dynamic_attr: KRT_SOURCE { $$ = f_new_dynamic_attr(T_INT, EA_KRT_SOURCE); } ; -dynamic_attr: KRT_METRIC { $$ = f_new_dynamic_attr(T_INT, EA_KRT_METRIC); } ; - CF_CODE CF_END diff --git a/sysdep/unix/krt.c b/sysdep/unix/krt.c index cf3b5575..5a29289f 100644 --- a/sysdep/unix/krt.c +++ b/sysdep/unix/krt.c @@ -232,7 +232,6 @@ kif_copy_config(struct proto_config *dest, struct proto_config *src) struct protocol proto_unix_iface = { .name = "Device", .template = "device%d", - .class = PROTOCOL_DEVICE, .proto_size = sizeof(struct kif_proto), .config_size = sizeof(struct kif_config), .preconfig = kif_preconfig, @@ -287,7 +286,7 @@ static struct tbf rl_alien = TBF_DEFAULT_LOG_LIMITS; static inline u32 krt_metric(rte *a) { - eattr *ea = ea_find(a->attrs->eattrs, EA_KRT_METRIC); + eattr *ea = ea_find(a->attrs->eattrs, &ea_krt_metric); return ea ? ea->u.data : 0; } @@ -1142,24 +1141,15 @@ krt_copy_config(struct proto_config *dest, struct proto_config *src) krt_sys_copy_config(d, s); } -static int -krt_get_attr(const eattr *a, byte *buf, int buflen) -{ - switch (a->id) - { - case EA_KRT_SOURCE: - bsprintf(buf, "source"); - return GA_NAME; - - case EA_KRT_METRIC: - bsprintf(buf, "metric"); - return GA_NAME; - - default: - return krt_sys_get_attr(a, buf, buflen); - } -} +struct ea_class ea_krt_source = { + .name = "krt_source", + .type = T_INT, +}; +struct ea_class ea_krt_metric = { + .name = "krt_metric", + .type = T_INT, +}; #ifdef CONFIG_IP6_SADR_KERNEL #define MAYBE_IP6_SADR NB_IP6_SADR @@ -1176,7 +1166,6 @@ krt_get_attr(const eattr *a, byte *buf, int buflen) struct protocol proto_unix_kernel = { .name = "Kernel", .template = "kernel%d", - .class = PROTOCOL_KERNEL, .preference = DEF_PREF_INHERITED, .channel_mask = NB_IP | MAYBE_IP6_SADR | MAYBE_MPLS, .proto_size = sizeof(struct krt_proto), @@ -1188,7 +1177,6 @@ struct protocol proto_unix_kernel = { .shutdown = krt_shutdown, .reconfigure = krt_reconfigure, .copy_config = krt_copy_config, - .get_attr = krt_get_attr, #ifdef KRT_ALLOW_LEARN .dump = krt_dump, #endif @@ -1198,4 +1186,9 @@ void krt_build(void) { proto_build(&proto_unix_kernel); + + EA_REGISTER_ALL( + &ea_krt_source, + &ea_krt_metric, + ); } diff --git a/sysdep/unix/krt.h b/sysdep/unix/krt.h index f6ad6fde..69fc9aa1 100644 --- a/sysdep/unix/krt.h +++ b/sysdep/unix/krt.h @@ -21,8 +21,12 @@ struct kif_proto; #define KRT_DEFAULT_ECMP_LIMIT 16 +#if 0 #define EA_KRT_SOURCE EA_CODE(PROTOCOL_KERNEL, 0) #define EA_KRT_METRIC EA_CODE(PROTOCOL_KERNEL, 1) +#endif + +extern struct ea_class ea_krt_source, ea_krt_metric; #define KRT_REF_SEEN 0x1 /* Seen in table */ #define KRT_REF_BEST 0x2 /* Best in table */ diff --git a/sysdep/unix/main.c b/sysdep/unix/main.c index 9bb37e5d..8fdad4e6 100644 --- a/sysdep/unix/main.c +++ b/sysdep/unix/main.c @@ -881,8 +881,8 @@ main(int argc, char **argv) resource_init(); timer_init(); olock_init(); - io_init(); rt_init(); + io_init(); if_init(); // roa_init(); config_init(); diff --git a/test/bt-utils.c b/test/bt-utils.c index ce9a49d7..509b5ed4 100644 --- a/test/bt-utils.c +++ b/test/bt-utils.c @@ -62,8 +62,8 @@ bt_bird_init(void) olock_init(); timer_init(); - io_init(); rt_init(); + io_init(); if_init(); config_init(); @@ -72,9 +72,6 @@ bt_bird_init(void) void bt_bird_cleanup(void) { - for (int i = 0; i < PROTOCOL__MAX; i++) - class_to_protocol[i] = NULL; - config = new_config = NULL; } |