diff options
Diffstat (limited to 'filter/f-util.c')
| -rw-r--r-- | filter/f-util.c | 145 |
1 files changed, 2 insertions, 143 deletions
diff --git a/filter/f-util.c b/filter/f-util.c index 410999a6..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. */ @@ -13,7 +13,7 @@ #include "filter/f-inst.h" #include "lib/idm.h" #include "nest/protocol.h" -#include "nest/route.h" +#include "nest/rt.h" #define P(a,b) ((a<<8) | b) @@ -40,144 +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 f_type 0x%02x\n", - ca->name, ca->fda->ea_code, ca->fda->type, ca->fda->f_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, int f_type) -{ - int ea_type; - - switch (f_type) { - case T_INT: - ea_type = EAF_TYPE_INT; - break; - case T_IP: - ea_type = EAF_TYPE_IP_ADDRESS; - break; - case T_QUAD: - ea_type = EAF_TYPE_ROUTER_ID; - break; - case T_PATH: - ea_type = EAF_TYPE_AS_PATH; - break; - case T_CLIST: - ea_type = EAF_TYPE_INT_SET; - break; - case T_ECLIST: - ea_type = EAF_TYPE_EC_SET; - break; - case T_LCLIST: - ea_type = EAF_TYPE_LC_SET; - 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, ea_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(ea_type, f_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; -} - |