Delete old ROA code

1 files changed, 0 insertions, 440 deletions

diff --git a/nest/rt-roa.c b/nest/rt-roa.c
deleted file mode 100644
index 0fd89667..00000000
--- a/nest/rt-roa.c
+++ /dev/null
@@ -1,440 +0,0 @@
-/*
- *	BIRD -- Route Origin Authorization
- *
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-#undef LOCAL_DEBUG
-
-#include "nest/bird.h"
-#include "nest/route.h"
-#include "nest/cli.h"
-#include "lib/lists.h"
-#include "lib/resource.h"
-#include "lib/event.h"
-#include "lib/string.h"
-#include "conf/conf.h"
-
-
-pool *roa_pool;
-static slab *roa_slab;			/* Slab of struct roa_item */
-static list roa_table_list;		/* List of struct roa_table */
-struct roa_table *roa_table_default;	/* The first ROA table in the config */
-
-static inline int
-src_match(struct roa_item *it, byte src)
-{ return !src || it->src == src; }
-
-/**
- * roa_add_item - add a ROA entry
- * @t: ROA table
- * @prefix: prefix of the ROA entry
- * @pxlen: prefix length of the ROA entry
- * @maxlen: max length field of the ROA entry
- * @asn: AS number field of the ROA entry
- * @src: source of the ROA entry (ROA_SRC_*)
- *
- * The function adds a new ROA entry to the ROA table. If the same ROA
- * is already in the table, nothing is added. @src field is used to
- * distinguish different sources of ROAs.
- */
-void
-roa_add_item(struct roa_table *t, ip_addr prefix, byte pxlen, byte maxlen, u32 asn, byte src)
-{
-  struct roa_node *n = fib_get(&t->fib, &prefix, pxlen);
-
-  // if ((n->items == NULL) && (n->n.x0 != ROA_INVALID))
-  // t->cached_items--;
-
-  struct roa_item *it;
-  for (it = n->items; it; it = it->next)
-    if ((it->maxlen == maxlen) && (it->asn == asn) && src_match(it, src))
-      return;
-
-  it = sl_alloc(roa_slab);
-  it->asn = asn;
-  it->maxlen = maxlen;
-  it->src = src;
-  it->next = n->items;
-  n->items = it;
-}
-
-/**
- * roa_delete_item - delete a ROA entry
- * @t: ROA table
- * @prefix: prefix of the ROA entry
- * @pxlen: prefix length of the ROA entry
- * @maxlen: max length field of the ROA entry
- * @asn: AS number field of the ROA entry
- * @src: source of the ROA entry (ROA_SRC_*)
- *
- * The function removes a specified ROA entry from the ROA table and
- * frees it. If @src field is not ROA_SRC_ANY, only entries from
- * that source are considered.
- */
-void
-roa_delete_item(struct roa_table *t, ip_addr prefix, byte pxlen, byte maxlen, u32 asn, byte src)
-{
-  struct roa_node *n = fib_find(&t->fib, &prefix, pxlen);
-
-  if (!n)
-    return;
-
-  struct roa_item *it, **itp;
-  for (itp = &n->items; it = *itp; itp = &it->next)
-    if ((it->maxlen == maxlen) && (it->asn == asn) && src_match(it, src))
-      break;
-
-  if (!it)
-    return;
-
-  *itp = it->next;
-  sl_free(roa_slab, it);
-
-  // if ((n->items == NULL) && (n->n.x0 != ROA_INVALID))
-  // t->cached_items++;
-}
-
-
-/**
- * roa_flush - flush a ROA table
- * @t: ROA table
- * @src: source of ROA entries (ROA_SRC_*)
- *
- * The function removes and frees ROA entries from the ROA table. If
- * @src is ROA_SRC_ANY, all entries in the table are removed,
- * otherwise only all entries from that source are removed.
- */
-void
-roa_flush(struct roa_table *t, byte src)
-{
-  struct roa_item *it, **itp;
-  struct roa_node *n;
-
-  FIB_WALK(&t->fib, fn)
-    {
-      n = (struct roa_node *) fn;
-
-      itp = &n->items;
-      while (it = *itp)
-	if (src_match(it, src))
-	  {
-	    *itp = it->next;
-	    sl_free(roa_slab, it);
-	  }
-	else
-	  itp = &it->next;
-    }
-  FIB_WALK_END;
-
-  // TODO add cleanup of roa_nodes
-}
-
-
-
-/*
-byte
-roa_check(struct roa_table *t, ip_addr prefix, byte pxlen, u32 asn)
-{
-  struct roa_node *n = fib_find(&t->fib, &prefix, pxlen);
-
-  if (n && n->n.x0 == ROA_UNKNOWN)
-    return ROA_UNKNOWN;
-
-  if (n && n->n.x0 == ROA_VALID && asn == n->cached_asn)
-    return ROA_VALID;
-
-  byte rv = roa_match(t, n, prefix, pxlen, asn);
-
-  if (rv != ROA_INVALID)
-    {
-      if (!n)
-	{
-	  if (t->cached_items >= t->cached_items_max)
-	  n = fib_get(&t->fib, &prefix, pxlen);
-	  t->cached_items++;
-	}
-
-      n->cached_asn = asn;
-      n->n.x0 = rv;
-    }
-
-  return rv;
-}
-*/
-
-/**
- * roa_check - check validity of route origination in a ROA table 
- * @t: ROA table
- * @prefix: network prefix to check
- * @pxlen: length of network prefix
- * @asn: AS number of network prefix
- *
- * Implements RFC 6483 route validation for the given network
- * prefix. The procedure is to find all candidate ROAs - ROAs whose
- * prefixes cover the give network prefix. If there is no candidate
- * ROA, return ROA_UNKNOWN. If there is a candidate ROA with matching
- * ASN and maxlen field greater than or equal to the given prefix
- * length, return ROA_VALID. Otherwise return ROA_INVALID. If caller
- * cannot determine origin AS, 0 could be used (in that case ROA_VALID
- * cannot happen).
- */
-byte
-roa_check(struct roa_table *t, ip_addr prefix, byte pxlen, u32 asn)
-{
-  struct roa_node *n;
-  ip_addr px;
-  byte anything = 0;
-
-  int len;
-  for (len = pxlen; len >= 0; len--)
-    {
-      px = ipa_and(prefix, ipa_mkmask(len));
-      n = fib_find(&t->fib, &px, len);
-
-      if (!n)
-	continue;
-
-      struct roa_item *it;
-      for (it = n->items; it; it = it->next)
-	{
-	  anything = 1;
-	  if ((it->maxlen >= pxlen) && (it->asn == asn) && asn)
-	    return ROA_VALID;
-	}
-    }
-
-  return anything ? ROA_INVALID : ROA_UNKNOWN;
-}
-
-static void
-roa_node_init(struct fib_node *fn)
-{
-  struct roa_node *n = (struct roa_node *) fn;
-  n->items = NULL;
-}
-
-static inline void
-roa_populate(struct roa_table *t)
-{
-  struct roa_item_config *ric;
-  for (ric = t->cf->roa_items; ric; ric = ric->next)
-    roa_add_item(t, ric->prefix, ric->pxlen, ric->maxlen, ric->asn, ROA_SRC_CONFIG);
-}
-
-static void
-roa_new_table(struct roa_table_config *cf)
-{
-  struct roa_table *t;
-
-  t = mb_allocz(roa_pool, sizeof(struct roa_table));
-  fib_init(&t->fib, roa_pool, sizeof(struct roa_node), 0, roa_node_init);
-  t->name = cf->name;
-  t->cf = cf;
-
-  cf->table = t;
-  add_tail(&roa_table_list, &t->n);
-
-  roa_populate(t);
-}
-
-struct roa_table_config *
-roa_new_table_config(struct symbol *s)
-{
-  struct roa_table_config *rtc = cfg_allocz(sizeof(struct roa_table_config));
-
-  cf_define_symbol(s, SYM_ROA, rtc);
-  rtc->name = s->name;
-  add_tail(&new_config->roa_tables, &rtc->n);
-  return rtc;
-}
-
-/**
- * roa_add_item_config - add a static ROA entry to a ROA table configuration
- *
- * Arguments are self-explanatory. The first is the ROA table config, rest
- * are specifying the ROA entry.
- */
-void
-roa_add_item_config(struct roa_table_config *rtc, ip_addr prefix, byte pxlen, byte maxlen, u32 asn)
-{
-  struct roa_item_config *ric = cfg_allocz(sizeof(struct roa_item_config));
-
-  ric->prefix = prefix;
-  ric->pxlen = pxlen;
-  ric->maxlen = maxlen;
-  ric->asn = asn;
-  ric->next = rtc->roa_items;
-  rtc->roa_items = ric;
-}
-
-/**
- * roa_init - initialize ROA tables
- *
- * This function is called during BIRD startup. It initializes
- * the ROA table module.
- */
-void
-roa_init(void)
-{
-  roa_pool = rp_new(&root_pool, "ROA tables");
-  roa_slab = sl_new(roa_pool, sizeof(struct roa_item));
-  init_list(&roa_table_list);
-}
-
-void
-roa_preconfig(struct config *c)
-{
-  init_list(&c->roa_tables);
-}
-
-
-/**
- * roa_commit - commit new ROA table configuration
- * @new: new configuration
- * @old: original configuration or %NULL if it's boot time config
- *
- * Scan differences between @old and @new configuration and modify the
- * ROA tables according to these changes. If @new defines a previously
- * unknown table, create it, if it omits a table existing in @old,
- * delete it (there are no references, only indirect through struct
- * roa_table_config). If it exists in both configurations, update the
- * configured ROA entries.
- */
-void
-roa_commit(struct config *new, struct config *old)
-{
-  struct roa_table_config *cf;
-  struct roa_table *t;
-
-  if (old)
-    WALK_LIST(t, roa_table_list)
-      {
-	struct symbol *sym = cf_find_symbol(new, t->name);
-	if (sym && sym->class == SYM_ROA)
-	  {
-	    /* Found old table in new config */
-	    cf = sym->def;
-	    cf->table = t;
-	    t->name = cf->name;
-	    t->cf = cf;
-
-	    /* Reconfigure it */
-	    roa_flush(t, ROA_SRC_CONFIG);
-	    roa_populate(t);
-	  }
-	else
-	  {
-	    t->cf->table = NULL;
-
-	    /* Free it now */
-	    roa_flush(t, ROA_SRC_ANY);
-	    rem_node(&t->n);
-	    fib_free(&t->fib);
-	    mb_free(t);
-	  }
-      }
-
-  /* Add new tables */
-  WALK_LIST(cf, new->roa_tables)
-    if (! cf->table)
-      roa_new_table(cf);
-
-  roa_table_default = EMPTY_LIST(new->roa_tables) ? NULL :
-    ((struct roa_table_config *) HEAD(new->roa_tables))->table;
-}
-
-
-
-static void
-roa_show_node(struct cli *c, struct roa_node *rn, int len, u32 asn)
-{
-  struct roa_item *ri;
-
-  for (ri = rn->items; ri; ri = ri->next)
-    if ((ri->maxlen >= len) && (!asn || (ri->asn == asn)))
-      cli_printf(c, -1019, "%I/%d max %d as %u", rn->n.prefix, rn->n.pxlen, ri->maxlen, ri->asn);
-}
-
-static void
-roa_show_cont(struct cli *c)
-{
-  struct roa_show_data *d = c->rover;
-  struct fib *fib = &d->table->fib;
-  struct fib_iterator *it = &d->fit;
-  struct roa_node *rn;
-  unsigned max = 32;
-
-  FIB_ITERATE_START(fib, it, f)
-    {
-      rn = (struct roa_node *) f;
-
-      if (!max--)
-	{
-	  FIB_ITERATE_PUT(it, f);
-	  return;
-	}
-
-      if ((d->mode == ROA_SHOW_ALL) ||
-	  net_in_net(rn->n.prefix, rn->n.pxlen, d->prefix, d->pxlen))
-	roa_show_node(c, rn, 0, d->asn);
-    }
-  FIB_ITERATE_END(f);
-
-  cli_printf(c, 0, "");
-  c->cont = c->cleanup = NULL;
-}
-
-static void
-roa_show_cleanup(struct cli *c)
-{
-  struct roa_show_data *d = c->rover;
-
-  /* Unlink the iterator */
-  fit_get(&d->table->fib, &d->fit);
-}
-
-void
-roa_show(struct roa_show_data *d)
-{
-  struct roa_node *rn;
-  ip_addr px;
-  int len;
-
-  switch (d->mode)
-    {
-    case ROA_SHOW_ALL:
-    case ROA_SHOW_IN:
-      FIB_ITERATE_INIT(&d->fit, &d->table->fib);
-      this_cli->cont = roa_show_cont;
-      this_cli->cleanup = roa_show_cleanup;
-      this_cli->rover = d;
-      break;
-
-    case ROA_SHOW_PX:
-      rn = fib_find(&d->table->fib, &d->prefix, d->pxlen);
-      if (rn)
-	{
-	  roa_show_node(this_cli, rn, 0, d->asn);
-	  cli_msg(0, "");
-	}
-      else
-	cli_msg(-8001, "Network not in table");
-      break;
-
-    case ROA_SHOW_FOR:
-      for (len = d->pxlen; len >= 0; len--)
-	{
-	  px = ipa_and(d->prefix, ipa_mkmask(len));
-	  rn = fib_find(&d->table->fib, &px, len);
-
-	  if (!rn)
-	    continue;
-
-	  roa_show_node(this_cli, rn, 0, d->asn);
-	}
-      cli_msg(0, "");
-      break;
-    }
-}