pimd: merge pimd as of 2015-01-19

Welcome pimd to the Quagga daemon zoo!

This is a merge of commit 77ae369 ("pimd: Log ifindex found for an
interface when zebra lib reports a new connected address."), with
the intermediate "reconnect" changes removed (c9adf00...d274381).
d274381 is replaced with b162ab7, which includes some changes.  In
addition, 4 reconnect-related changes and 1 cosmetic one have been
bumped out.

The rebase command used to produce the branch that is merged here is:
  git rebase --onto b162ab7 c9adf00 77ae369

Note that 3 patches had their author rewritten from
    "Anonymous SR#108542 <>" (which is not a valid git author ID)
to: "Savannah SR#108542 <nbahr@atcorp.com>" (which is the e-mail address
                               listed in the associated Savannah ticket)

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

1 files changed, 149 insertions, 0 deletions

diff --git a/pimd/test_igmpv3_join.c b/pimd/test_igmpv3_join.c
new file mode 100644
index 0000000000..fe64fbc005
--- /dev/null
+++ b/pimd/test_igmpv3_join.c
@@ -0,0 +1,149 @@
+/*
+  PIM for Quagga
+  Copyright (C) 2008  Everton da Silva Marques
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  General Public License for more details.
+  
+  You should have received a copy of the GNU General Public License
+  along with this program; see the file COPYING; if not, write to the
+  Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+  MA 02110-1301 USA
+  
+  $QuaggaId: $Format:%an, %ai, %h$ $
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <arpa/inet.h>
+
+#include "pim_igmp_join.h"
+
+const char *prog_name = 0;
+
+static int iface_solve_index(const char *ifname)
+{
+  struct if_nameindex *ini;
+  int ifindex = -1;
+  int i;
+
+  if (!ifname)
+    return -1;
+
+  ini = if_nameindex();
+  if (!ini) {
+    int err = errno;
+    fprintf(stderr,
+	    "%s: interface=%s: failure solving index: errno=%d: %s\n",
+	    prog_name, ifname, err, strerror(err));
+    errno = err;
+    return -1;
+  }
+
+  for (i = 0; ini[i].if_index; ++i) {
+#if 0
+    fprintf(stderr,
+	    "%s: interface=%s matching against local ifname=%s ifindex=%d\n",
+	    prog_name, ifname, ini[i].if_name, ini[i].if_index);
+#endif
+    if (!strcmp(ini[i].if_name, ifname)) {
+      ifindex = ini[i].if_index;
+      break;
+    }
+  }
+
+  if_freenameindex(ini);
+
+  return ifindex;
+}
+
+int main(int argc, const char *argv[])
+{
+  struct in_addr group_addr;
+  struct in_addr source_addr;
+  const char *ifname;
+  const char *group;
+  const char *source;
+  int ifindex;
+  int result;
+  int fd;
+
+  prog_name = argv[0];
+
+  fd = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
+  if (fd < 0) {
+    fprintf(stderr,
+	    "%s: could not create socket: socket(): errno=%d: %s\n",
+	    prog_name, errno, strerror(errno));
+    exit(1);
+  }
+
+  if (argc != 4) {
+    fprintf(stderr,
+	    "usage:   %s interface group     source\n"
+	    "example: %s eth0      232.1.1.1 1.1.1.1\n",
+	    prog_name, prog_name);
+    exit(1);
+  }
+
+  ifname = argv[1];
+  group  = argv[2];
+  source = argv[3];
+
+  ifindex = iface_solve_index(ifname);
+  if (ifindex < 0) {
+    fprintf(stderr, "%s: could not find interface: %s\n",
+	    prog_name, ifname);
+    exit(1);
+  }
+
+  result = inet_pton(AF_INET, group, &group_addr);
+  if (result <= 0) {
+    fprintf(stderr, "%s: bad group address: %s\n",
+	    prog_name, group);
+    exit(1);
+  }
+
+  result = inet_pton(AF_INET, source, &source_addr);
+  if (result <= 0) {
+    fprintf(stderr, "%s: bad source address: %s\n",
+	    prog_name, source);
+    exit(1);
+  }
+
+  result = pim_igmp_join_source(fd, ifindex, group_addr, source_addr);
+  if (result) {
+    fprintf(stderr,
+	    "%s: setsockopt(fd=%d) failure for IGMP group %s source %s ifindex %d on interface %s: errno=%d: %s\n",
+	    prog_name, fd, group, source, ifindex, ifname,
+	    errno, strerror(errno));
+    exit(1);
+  }
+
+  printf("%s: joined channel (S,G)=(%s,%s) on interface %s\n",
+	 prog_name, source, group, ifname);
+
+  printf("%s: waiting...\n", prog_name);
+
+  getchar();
+
+  close(fd);
+
+  printf("%s: left channel (S,G)=(%s,%s) on interface %s\n",
+	 prog_name, source, group, ifname);
+
+  exit(0);
+}