Cleanup in sysdep KRT code, part 2.

Remove support for historic Linux kernels,
merge krt-iface, krt-set and krt-scan stub headers.

1 files changed, 0 insertions, 199 deletions

diff --git a/sysdep/linux/krt-scan.c b/sysdep/linux/krt-scan.c
deleted file mode 100644
index 8591607e..00000000
--- a/sysdep/linux/krt-scan.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/*
- *	BIRD -- Linux Routing Table Scanning
- *
- *	(c) 1998--2000 Martin Mares <mj@ucw.cz>
- *
- *	Can be freely distributed and used under the terms of the GNU GPL.
- */
-
-#include <stdio.h>
-#include <ctype.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <net/route.h>
-
-#undef LOCAL_DEBUG
-
-#include "nest/bird.h"
-#include "nest/route.h"
-#include "nest/protocol.h"
-#include "nest/iface.h"
-#include "lib/timer.h"
-#include "lib/unix.h"
-#include "lib/krt.h"
-#include "lib/string.h"
-
-static int krt_scan_fd = -1;
-
-struct iface *
-krt_temp_iface(struct krt_proto *p, char *name)
-{
-  struct iface *i;
-
-  WALK_LIST(i, p->scan.temp_ifs)
-    if (!strcmp(i->name, name))
-      return i;
-  i = mb_allocz(p->p.pool, sizeof(struct iface));
-  strcpy(i->name, name);
-  add_tail(&p->scan.temp_ifs, &i->n);
-  return i;
-}
-
-static void
-krt_parse_entry(byte *ent, struct krt_proto *p)
-{
-  u32 dest0, gw0, mask0;
-  ip_addr dest, gw, mask;
-  unsigned int flags;
-  int masklen;
-  net *net;
-  byte *iface = ent;
-  rte *e;
-
-  if (sscanf(ent, "%*s\t%x\t%x\t%x\t%*d\t%*d\t%*d\t%x\t", &dest0, &gw0, &flags, &mask0) != 4)
-    {
-      log(L_ERR "krt read: unable to parse `%s'", ent);
-      return;
-    }
-  while (*ent != '\t')
-    ent++;
-  *ent = 0;
-
-  dest = ipa_from_u32(dest0);
-  ipa_ntoh(dest);
-  gw = ipa_from_u32(gw0);
-  ipa_ntoh(gw);
-  mask = ipa_from_u32(mask0);
-  ipa_ntoh(mask);
-  if ((masklen = ipa_mklen(mask)) < 0)
-    {
-      log(L_ERR "krt read: invalid netmask %08x", mask0);
-      return;
-    }
-  DBG("Got %I/%d via %I flags %x\n", dest, masklen, gw, flags);
-
-  if (!(flags & RTF_UP))
-    {
-      DBG("Down.\n");
-      return;
-    }
-  if (flags & RTF_HOST)
-    masklen = 32;
-  if (flags & (RTF_DYNAMIC | RTF_MODIFIED)) /* Redirect route */
-    {
-      log(L_WARN "krt: Ignoring redirect to %I/%d via %I", dest, masklen, gw);
-      return;
-    }
-
-  net = net_get(p->p.table, dest, masklen);
-
-  rta a = {
-    .proto = &p->p,
-    .source = RTS_INHERIT,
-    .scope = SCOPE_UNIVERSE,
-    .cast = RTC_UNICAST
-  };
-
-  if (flags & RTF_GATEWAY)
-    {
-      neighbor *ng = neigh_find(&p->p, &gw, 0);
-      if (ng && ng->scope)
-	a.iface = ng->iface;
-      else
-	{
-	  log(L_WARN "Kernel told us to use non-neighbor %I for %I/%d", gw, net->n.prefix, net->n.pxlen);
-	  return;
-	}
-      a.dest = RTD_ROUTER;
-      a.gw = gw;
-    }
-  else if (flags & RTF_REJECT)
-    {
-      a.dest = RTD_UNREACHABLE;
-      a.gw = IPA_NONE;
-    }
-  else if (isalpha(iface[0]))
-    {
-      a.dest = RTD_DEVICE;
-      a.gw = IPA_NONE;
-      a.iface = krt_temp_iface(p, iface);
-    }
-  else
-    {
-      log(L_WARN "Kernel reporting unknown route type to %I/%d", net->n.prefix, net->n.pxlen);
-      return;
-    }
-
-  e = rte_get_temp(&a);
-  e->net = net;
-  e->u.krt.src = KRT_SRC_UNKNOWN;
-  krt_got_route(p, e);
-}
-
-void
-krt_scan_fire(struct krt_proto *p)
-{
-  byte buf[32768];
-  int l, seen_hdr;
-
-  if (krt_scan_fd < 0)
-    {
-      krt_scan_fd = open("/proc/net/route", O_RDONLY);
-      if (krt_scan_fd < 0)
-	die("/proc/net/route: %m");
-    }
-  else if (lseek(krt_scan_fd, 0, SEEK_SET) < 0)
-    {
-      log(L_ERR "krt seek: %m");
-      return;
-    }
-  seen_hdr = 0;
-  while ((l = read(krt_scan_fd, buf, sizeof(buf))) > 0)
-    {
-      byte *z = buf;
-      if (l & 127)
-	{
-	  log(L_ERR "krt read: misaligned entry: l=%d", l);
-	  return;
-	}
-      while (l >= 128)
-	{
-	  if (seen_hdr++)
-	    krt_parse_entry(z, p);
-	  z += 128;
-	  l -= 128;
-	}
-    }
-  if (l < 0)
-    {
-      log(L_ERR "krt read: %m");
-      return;
-    }
-  DBG("KRT scan done, seen %d lines\n", seen_hdr);
-}
-
-void
-krt_scan_construct(struct krt_config *c)
-{
-}
-
-void
-krt_scan_preconfig(struct config *c)
-{
-}
-
-void
-krt_scan_postconfig(struct krt_config *c)
-{
-}
-
-void
-krt_scan_start(struct krt_proto *x, int first)
-{
-  init_list(&x->scan.temp_ifs);
-}
-
-void
-krt_scan_shutdown(struct krt_proto *x, int last)
-{
-}