summaryrefslogtreecommitdiffstats
path: root/src/vnet/fib/fib_api.h
blob: 66f0b51e891b80a927f6346d061144806a18deca (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
/*
 * Copyright (c) 2016 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef __FIB_API_H__
#define __FIB_API_H__

#include <vnet/fib/fib_types.h>

int
add_del_route_check (fib_protocol_t table_proto,
		     u32 table_id,
		     u32 next_hop_sw_if_index,
		     dpo_proto_t next_hop_table_proto,
		     u32 next_hop_table_id,
                     u8 is_rpf_id,
		     u32 * fib_index, u32 * next_hop_fib_index);

int
add_del_route_t_handler (u8 is_multipath,
			 u8 is_add,
			 u8 is_drop,
			 u8 is_unreach,
			 u8 is_prohibit,
			 u8 is_local,
			 u8 is_multicast,
			 u8 is_classify,
			 u32 classify_table_index,
			 u8 is_resolve_host,
			 u8 is_resolve_attached,
			 u8 is_interface_rx,
                         u8 is_rpf_id,
                         u8 is_dvr,
                         u8 is_source_lookup,
                         u8 is_udp_encap,
			 u32 fib_index,
			 const fib_prefix_t * prefix,
			 dpo_proto_t next_hop_proto,
			 const ip46_address_t * next_hop,
                         u32 next_hop_id,
			 u32 next_hop_sw_if_index,
			 u8 next_hop_fib_index,
			 u16 next_hop_weight,
			 u16 next_hop_preference,
			 mpls_label_t next_hop_via_label,
			 fib_mpls_label_t * next_hop_out_label_stack);

struct _vl_api_fib_path;

extern void fib_api_path_encode (const fib_route_path_encode_t * api_rpath,
                                 struct _vl_api_fib_path *out);

void
fib_prefix_to_api (const fib_prefix_t *pfx,
                   u8 address[16],
                   u8 *length,
                   u8 *is_ip6);


struct _vl_api_fib_path;

extern int fib_path_api_parse(const struct _vl_api_fib_path *in,
                              fib_route_path_t *out);

#endif /* __FIB_API_H__ */
light .gu { color: #75715e } /* Generic.Subheading */ .highlight .kc { color: #66d9ef } /* Keyword.Constant */ .highlight .kd { color: #66d9ef } /* Keyword.Declaration */ .highlight .kn { color: #f92672 } /* Keyword.Namespace */ .highlight .kp { color: #66d9ef } /* Keyword.Pseudo */ .highlight .kr { color: #66d9ef } /* Keyword.Reserved */ .highlight .kt { color: #66d9ef } /* Keyword.Type */ .highlight .ld { color: #e6db74 } /* Literal.Date */ .highlight .m { color: #ae81ff } /* Literal.Number */ .highlight .s { color: #e6db74 } /* Literal.String */ .highlight .na { color: #a6e22e } /* Name.Attribute */ .highlight .nb { color: #f8f8f2 } /* Name.Builtin */ .highlight .nc { color: #a6e22e } /* Name.Class */ .highlight .no { color: #66d9ef } /* Name.Constant */ .highlight .nd { color: #a6e22e } /* Name.Decorator */ .highlight .ni { color: #f8f8f2 } /* Name.Entity */ .highlight .ne { color: #a6e22e } /* Name.Exception */ .highlight .nf { color: #a6e22e } /* Name.Function */ .highlight .nl { color: #f8f8f2 } /* Name.Label */ .highlight .nn { color: #f8f8f2 } /* Name.Namespace */ .highlight .nx { color: #a6e22e } /* Name.Other */ .highlight .py { color: #f8f8f2 } /* Name.Property */ .highlight .nt { color: #f92672 } /* Name.Tag */ .highlight .nv { color: #f8f8f2 } /* Name.Variable */ .highlight .ow { color: #f92672 } /* Operator.Word */ .highlight .w { color: #f8f8f2 } /* Text.Whitespace */ .highlight .mb { color: #ae81ff } /* Literal.Number.Bin */ .highlight .mf { color: #ae81ff } /* Literal.Number.Float */ .highlight .mh { color: #ae81ff } /* Literal.Number.Hex */ .highlight .mi { color: #ae81ff } /* Literal.Number.Integer */ .highlight .mo { color: #ae81ff } /* Literal.Number.Oct */ .highlight .sa { color: #e6db74 } /* Literal.String.Affix */ .highlight .sb { color: #e6db74 } /* Literal.String.Backtick */ .highlight .sc { color: #e6db74 } /* Literal.String.Char */ .highlight .dl { color: #e6db74 } /* Literal.String.Delimiter */ .highlight .sd { color: #e6db74 } /* Literal.String.Doc */ .highlight .s2 { color: #e6db74 } /* Literal.String.Double */ .highlight .se { color: #ae81ff } /* Literal.String.Escape */ .highlight .sh { color: #e6db74 } /* Literal.String.Heredoc */ .highlight .si { color: #e6db74 } /* Literal.String.Interpol */ .highlight .sx { color: #e6db74 } /* Literal.String.Other */ .highlight .sr { color: #e6db74 } /* Literal.String.Regex */ .highlight .s1 { color: #e6db74 } /* Literal.String.Single */ .highlight .ss { color: #e6db74 } /* Literal.String.Symbol */ .highlight .bp { color: #f8f8f2 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #a6e22e } /* Name.Function.Magic */ .highlight .vc { color: #f8f8f2 } /* Name.Variable.Class */ .highlight .vg { color: #f8f8f2 } /* Name.Variable.Global */ .highlight .vi { color: #f8f8f2 } /* Name.Variable.Instance */ .highlight .vm { color: #f8f8f2 } /* Name.Variable.Magic */ .highlight .il { color: #ae81ff } /* Literal.Number.Integer.Long */ } @media (prefers-color-scheme: light) { .highlight .hll { background-color: #ffffcc } .highlight .c { color: #888888 } /* Comment */ .highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */ .highlight .k { color: #008800; font-weight: bold } /* Keyword */ .highlight .ch { color: #888888 } /* Comment.Hashbang */ .highlight .cm { color: #888888 } /* Comment.Multiline */ .highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */ .highlight .cpf { color: #888888 } /* Comment.PreprocFile */ .highlight .c1 { color: #888888 } /* Comment.Single */ .highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */ .highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */ .highlight .ge { font-style: italic } /* Generic.Emph */ .highlight .gr { color: #aa0000 } /* Generic.Error */ .highlight .gh { color: #333333 } /* Generic.Heading */ .highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */ .highlight .go { color: #888888 } /* Generic.Output */ .highlight .gp { color: #555555 } /* Generic.Prompt */ .highlight .gs { font-weight: bold } /* Generic.Strong */ .highlight .gu { color: #666666 } /* Generic.Subheading */ .highlight .gt { color: #aa0000 } /* Generic.Traceback */ .highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */ .highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */ .highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */ .highlight .kp { color: #008800 } /* Keyword.Pseudo */ .highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */ .highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */ .highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */ .highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */ .highlight .na { color: #336699 } /* Name.Attribute */ .highlight .nb { color: #003388 } /* Name.Builtin */ .highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */ .highlight .no { color: #003366; font-weight: bold } /* Name.Constant */ .highlight .nd { color: #555555 } /* Name.Decorator */ .highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */ .highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ }
/*
 * Copyright (c) 2015 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sys/stat.h>
#include <pwd.h>
#include <grp.h>
#include <netinet/in.h>
#include <signal.h>
#include <pthread.h>
#include <unistd.h>
#include <time.h>
#include <fcntl.h>
#include <string.h>
#include <vppinfra/clib.h>
#include <vppinfra/vec.h>
#include <vppinfra/hash.h>
#include <vppinfra/bitmap.h>
#include <vppinfra/fifo.h>
#include <vppinfra/time.h>
#include <vppinfra/mheap.h>
#include <vppinfra/heap.h>
#include <vppinfra/pool.h>
#include <vppinfra/format.h>
#include <vppinfra/serialize.h>
#include "svmdb.h"

typedef struct
{
  svmdb_map_args_t map_args;
  int uid, gid;
  uword size;
} svmdbtool_main_t;

svmdbtool_main_t svmdbtool_main;

static inline svmdb_map_args_t *
map_arg_setup (char *chroot_path)
{
  svmdbtool_main_t *sm = &svmdbtool_main;
  svmdb_map_args_t *ma = &sm->map_args;

  clib_memset (ma, 0, sizeof (*ma));
  ma->root_path = chroot_path;
  ma->size = sm->size;
  ma->uid = sm->uid;
  ma->gid = sm->gid;
  return ma;
}

static void
get_string (char *chroot_path, u8 * vbl)
{
  svmdb_client_t *c;
  char *rv;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  rv = svmdb_local_get_string_variable (c, (char *) vbl);

  fformat (stdout, "%s\n", rv ? rv : "UNSET");
  vec_free (rv);
  svmdb_unmap (c);
}

static void
set_string (char *chroot_path, u8 * vbl, u8 * value)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);
  svmdb_local_set_string_variable (c, (char *) vbl, (char *) value);
  svmdb_unmap (c);
}

static void
unset_string (char *chroot_path, u8 * vbl)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);
  svmdb_local_unset_string_variable (c, (char *) vbl);
  svmdb_unmap (c);
}

static void
dump_strings (char *chroot_path)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);
  svmdb_local_dump_strings (c);
  svmdb_unmap (c);
}

static void
serialize_strings (char *chroot_path, char *filename)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);
  (void) svmdb_local_serialize_strings (c, filename);
  svmdb_unmap (c);
}

static void
unserialize_strings (char *chroot_path, char *filename)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);
  (void) svmdb_local_unserialize_strings (c, filename);
  svmdb_unmap (c);
}

static void
test_vlib_vec_rate (char *chroot_path, f64 vr)
{
  svmdb_client_t *c;
  f64 *tv = 0;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  vec_add1 (tv, vr);

  svmdb_local_set_vec_variable (c, "vlib_vector_rate", (char *) tv,
				sizeof (*tv));
  svmdb_unmap (c);

  vec_free (tv);
}



static void
test_vec (char *chroot_path, u8 * vbl)
{
  svmdb_client_t *c;
  u64 *tv = 0;
  int i;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  /* my amp goes to 11 */
  for (i = 0; i < 11; i++)
    {
      vec_add1 (tv, i);
    }

  svmdb_local_set_vec_variable (c, (char *) vbl, (char *) tv, sizeof (tv[0]));
  svmdb_unmap (c);

  vec_free (tv);
}

static void
fake_install (char *chroot_path, u8 * add_value)
{
  svmdb_client_t *c;
  u8 *v = 0;
  u8 **values = 0;
  u8 *oldvalue;
  u8 *value;
  int nitems = 0, i;
  serialize_main_t m;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  oldvalue = svmdb_local_get_vec_variable (c, "installed_sw", 1);
  if (oldvalue)
    {
      unserialize_open_data (&m, oldvalue, vec_len (oldvalue));
      nitems = unserialize_likely_small_unsigned_integer (&m);
      for (i = 0; i < nitems; i++)
	{
	  unserialize_cstring (&m, (char **) &value);
	  vec_add1 (values, value);
	}
      vec_free (v);
    }
  nitems++;
  value = format (0, "%s%c", add_value, 0);

  vec_add1 (values, value);

  fformat (stdout, "Resulting installed_sw vector:\n");

  serialize_open_vector (&m, v);
  serialize_likely_small_unsigned_integer (&m, vec_len (values));
  for (i = 0; i < vec_len (values); i++)
    {
      fformat (stdout, "%s\n", values[i]);
      serialize_cstring (&m, (char *) values[i]);
    }

  v = serialize_close_vector (&m);

  svmdb_local_set_vec_variable (c, "installed_sw", v, sizeof (v[0]));
  svmdb_unmap (c);

  for (i = 0; i < vec_len (values); i++)
    vec_free (values[i]);
  vec_free (values);
}

static void
sigaction_handler (int signum, siginfo_t * i, void *notused)
{
  u32 action, opaque;

  action = (u32) (uword) i->si_ptr;
  action >>= 28;
  opaque = (u32) (uword) i->si_ptr;
  opaque &= ~(0xF0000000);

  clib_warning ("signal %d, action %d, opaque %x", signum, action, opaque);
}

static void
test_reg (char *chroot_path, u8 * vbl)
{
  svmdb_client_t *c;
  svmdb_notification_args_t args;
  svmdb_notification_args_t *a = &args;
  struct sigaction sa;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  clib_memset (&sa, 0, sizeof (sa));
  sa.sa_sigaction = sigaction_handler;
  sa.sa_flags = SA_SIGINFO;
  if (sigaction (SIGUSR2, &sa, 0) < 0)
    {
      clib_unix_warning ("sigaction");
      return;
    }

  clib_memset (a, 0, sizeof (*a));

  c = svmdb_map (ma);

  a->add_del = 1 /* add */ ;
  a->nspace = SVMDB_NAMESPACE_STRING;
  a->var = (char *) vbl;
  a->elsize = 1;
  a->signum = SIGUSR2;
  a->action = SVMDB_ACTION_GET;
  a->opaque = 0x0eadbeef;

  svmdb_local_add_del_notification (c, a);

  (void) svmdb_local_get_string_variable (c, (char *) vbl);

  a->add_del = 0;		/* del */
  svmdb_local_add_del_notification (c, a);



  svmdb_unmap (c);
}

static void
unset_vec (char *chroot_path, u8 * vbl)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  svmdb_local_unset_vec_variable (c, (char *) vbl);
  svmdb_unmap (c);
}

static void
dump_vecs (char *chroot_path)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  svmdb_local_dump_vecs (c);
  svmdb_unmap (c);
}

static void
crash_test (char *chroot_path)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  clib_warning ("Grab region mutex and crash deliberately!");
  c->db_rp->mutex_owner_pid = getpid ();
  c->db_rp->mutex_owner_tag = -13;
  pthread_mutex_lock (&c->db_rp->mutex);

  abort ();
}

static void
map_with_size (char *chroot_path, uword size)
{
  svmdb_client_t *c;
  svmdb_map_args_t *ma;

  svmdbtool_main.size = size;
  ma = map_arg_setup (chroot_path);

  c = svmdb_map (ma);

  svmdb_unmap (c);
}

int
main (int argc, char **argv)
{
  unformat_input_t input;
  int parsed = 0;
  u8 *vbl = 0, *value = 0;
  char *chroot_path = 0;
  u8 *chroot_path_u8;
  u8 *filename;
  uword size;
  f64 vr;
  int uid, gid, rv;
  struct passwd _pw, *pw;
  struct group _grp, *grp;
  char *s, buf[128];

  clib_mem_init_thread_safe (0, 128 << 20);

  svmdbtool_main.uid = geteuid ();
  svmdbtool_main.gid = getegid ();

  unformat_init_command_line (&input, argv);

  while (unformat_check_input (&input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (&input, "get-string %s", &vbl))
	{
	  get_string (chroot_path, vbl);
	  vec_free (vbl);
	  parsed++;
	}
      else if (unformat (&input, "set-string %s %s", &vbl, &value))
	{
	  set_string (chroot_path, vbl, value);
	  vec_free (vbl);
	  vec_free (value);
	  parsed++;
	}
      else if (unformat (&input, "unset-string %s", &vbl))
	{
	  unset_string (chroot_path, vbl);
	  vec_free (vbl);
	  parsed++;
	}
      else if (unformat (&input, "dump-strings"))
	{
	  dump_strings (chroot_path);
	  parsed++;
	}
      else if (unformat (&input, "unset-vec %s", &vbl))
	{
	  unset_vec (chroot_path, vbl);
	  vec_free (vbl);
	  parsed++;
	}
      else if (unformat (&input, "dump-vecs"))
	{
	  dump_vecs (chroot_path);
	  parsed++;
	}
      else if (unformat (&input, "test-vec %s", &vbl))
	{
	  test_vec (chroot_path, vbl);
	  // vec_free(vbl);
	  parsed++;
	}
      else if (unformat (&input, "vlib-vec-rate %f", &vr))
	{
	  test_vlib_vec_rate (chroot_path, vr);
	  parsed++;
	}
      else if (unformat (&input, "test-reg %s", &vbl))
	{
	  test_reg (chroot_path, vbl);
	  parsed++;
	}
      else if (unformat (&input, "crash-test"))
	{
	  crash_test (chroot_path);
	}
      else if (unformat (&input, "chroot %s", &chroot_path_u8))
	{
	  chroot_path = (char *) chroot_path_u8;
	}
      else if (unformat (&input, "fake-install %s", &value))
	{
	  fake_install (chroot_path, value);
	  parsed++;
	}
      else if (unformat (&input, "size %d", &size))
	{
	  map_with_size (chroot_path, size);
	  parsed++;
	}
      else if (unformat (&input, "uid %d", &uid))
	svmdbtool_main.uid = uid;
      else if (unformat (&input, "gid %d", &gid))
	svmdbtool_main.gid = gid;
      else if (unformat (&input, "uid %s", &s))
	{
	  /* lookup the username */
	  pw = NULL;
	  rv = getpwnam_r (s, &_pw, buf, sizeof (buf), &pw);
	  if (rv < 0)
	    {
	      fformat (stderr, "cannot fetch username %s", s);
	      exit (1);
	    }
	  if (pw == NULL)
	    {
	      fformat (stderr, "username %s does not exist", s);
	      exit (1);
	    }
	  vec_free (s);
	  svmdbtool_main.uid = pw->pw_uid;
	}
      else if (unformat (&input, "gid %s", &s))
	{
	  /* lookup the group name */
	  grp = NULL;
	  rv = getgrnam_r (s, &_grp, buf, sizeof (buf), &grp);
	  if (rv != 0)
	    {
	      fformat (stderr, "cannot fetch group %s", s);
	      exit (1);
	    }
	  if (grp == NULL)
	    {
	      fformat (stderr, "group %s does not exist", s);
	      exit (1);
	    }
	  vec_free (s);
	  svmdbtool_main.gid = grp->gr_gid;
	}
      else if (unformat (&input, "serialize-strings %s", &filename))
	{
	  vec_add1 (filename, 0);
	  serialize_strings (chroot_path, (char *) filename);
	  parsed++;
	}
      else if (unformat (&input, "unserialize-strings %s", &filename))
	{
	  vec_add1 (filename, 0);
	  unserialize_strings (chroot_path, (char *) filename);
	  parsed++;
	}
      else
	{
	  break;
	}
    }

  unformat_free (&input);

  if (!parsed)
    {
      fformat (stdout, "%s: get-string <name> | set-string <name> <value>\n",
	       argv[0]);
      fformat (stdout, "      unset-string <name> | dump-strings\n");
      fformat (stdout, "      test-vec <name> |\n");
      fformat (stdout, "      unset-vec <name> | dump-vecs\n");
      fformat (stdout, "      chroot <prefix> [uid <nnn-or-userid>]\n");
      fformat (stdout, "      [gid <nnn-or-group-name>]\n");
    }

  exit (0);
}

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */