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Viewing changes to plugin-helpers/mandos-client-iprouteadddel.c

  • Committer: Teddy Hogeborn
  • Date: 2015-07-20 03:03:33 UTC
  • Revision ID: teddy@recompile.se-20150720030333-203m2aeblypcsfte
Bug fix for GnuTLS 3: be compatible with old 2048-bit DSA keys.

The mandos-keygen program in Mandos version 1.6.0 and older generated
2048-bit DSA keys, and when GnuTLS uses these it has trouble
connecting using the Mandos default priority string.  This was
previously fixed in Mandos 1.6.2, but the bug reappeared when using
GnuTLS 3, so the default priority string has to change again; this
time also the Mandos client has to change its default, so now the
server and the client should use the same default priority string:

SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA:+SIGN-DSA-SHA256

* mandos (main/server_defaults): Changed default priority string.
* mandos-options.xml (/section/para[id="priority_compat"]): Removed.
  (/section/para[id="priority"]): Changed default priority string.
* mandos.conf ([DEFAULT]/priority): - '' -
* mandos.conf.xml (OPTIONS/priority): Refer to the id "priority"
                                      instead of "priority_compat".
* mandos.xml (OPTIONS/--priority): - '' -
* plugins.d/mandos-client.c (main): Changed default priority string.

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plugin-helpers/mandos-client-iprouteadddel.c
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/* 
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 * iprouteadddel - Add or delete direct route to a local IP address
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 * 
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 * Copyright © 2015-2018, 2021 Teddy Hogeborn
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 * Copyright © 2015-2018, 2021 Björn Påhlsson
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 * 
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 * This file is part of Mandos.
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 * 
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 * Mandos is free software: you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 * 
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 * Mandos is distributed in the hope that it will be useful, but
 
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 * Copyright © 2015 Teddy Hogeborn
 
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 * Copyright © 2015 Björn Påhlsson
 
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 * 
 
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 * This program is free software: you can redistribute it and/or
 
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 * modify it under the terms of the GNU General Public License as
 
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 * published by the Free Software Foundation, either version 3 of the
 
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 * License, or (at your option) any later version.
 
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 * 
 
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 * This program is distributed in the hope that it will be useful, but
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * General Public License for more details.
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 * 
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 * You should have received a copy of the GNU General Public License
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 * along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
 
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 * along with this program.  If not, see
 
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 * <http://www.gnu.org/licenses/>.
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 * 
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 * Contact the authors at <mandos@recompile.se>.
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 */
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#define _GNU_SOURCE             /* program_invocation_short_name */
 
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#define _GNU_SOURCE             /* asprintf(),
 
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                                   program_invocation_short_name */
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#include <stdbool.h>            /* bool, false, true */
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#include <argp.h>               /* argp_program_version,
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                                   argp_program_bug_address,
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                                   struct argp_option,
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                                   struct argp_state, ARGP_KEY_ARG,
 
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#include <stdio.h>              /* fprintf(), stderr, FILE, vfprintf */
 
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#include <errno.h>              /* program_invocation_short_name,
 
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                                   errno, perror(), EINVAL, ENOMEM */
 
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#include <stdarg.h>             /* va_list, va_start */
 
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#include <stdlib.h>             /* EXIT_SUCCESS */
 
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#include <argp.h>               /* struct argp_option, error_t, struct
 
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                                   argp_state, ARGP_KEY_ARG,
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                                   argp_usage(), ARGP_KEY_END,
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                                   ARGP_ERR_UNKNOWN, struct argp,
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                                   argp_parse(), ARGP_IN_ORDER */
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#include <errno.h>              /* errno,
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                                   program_invocation_short_name,
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                                   error_t, EINVAL, ENOMEM */
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#include <stdio.h>              /* fprintf(), stderr, perror(), FILE,
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                                   vfprintf() */
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#include <stdarg.h>             /* va_list, va_start(), vfprintf() */
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#include <stdlib.h>             /* EXIT_SUCCESS */
 
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                                   argp_parse() */
 
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#include <sysexits.h>           /* EX_USAGE, EX_OSERR */
 
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#include <netinet/ip.h>         /* sa_family_t, AF_INET6, AF_INET */
 
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#include <inttypes.h>           /* PRIdMAX, intmax_t */
 
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#include <netlink/netlink.h>    /* struct nl_addr, nl_addr_parse(),
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                                   nl_geterror(),
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                                   nl_addr_get_family(), NLM_F_EXCL,
 
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                                   nl_addr_get_family(),
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                                   nl_addr_put() */
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#include <stddef.h>             /* NULL */
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#include <netlink/route/route.h>/* struct rtnl_route,
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                                   struct rtnl_nexthop, NETLINK_ROUTE,
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                                   rtnl_route_alloc(),
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                                   rtnl_route_set_family(),
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                                   rtnl_route_set_protocol(),
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                                   RTPROT_BOOT,
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                                   rtnl_route_set_scope(),
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                                   RT_SCOPE_LINK,
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                                   rtnl_route_set_type(), RTN_UNICAST,
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                                   rtnl_route_set_dst(),
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                                   rtnl_route_set_table(),
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                                   RT_TABLE_MAIN,
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                                   rtnl_route_nh_alloc(),
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                                   rtnl_route_nh_set_ifindex(),
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                                   rtnl_route_add_nexthop(),
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                                   rtnl_route_add(),
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                                   rtnl_route_delete(),
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                                   rtnl_route_put(),
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                                   rtnl_route_nh_free() */
 
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#include <netlink/route/route.h> /* struct rtnl_route,
 
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                                    struct rtnl_nexthop,
 
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                                    rtnl_route_alloc(),
 
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                                    rtnl_route_set_family(),
 
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                                    rtnl_route_set_protocol(),
 
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                                    RTPROT_BOOT,
 
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                                    rtnl_route_set_scope(),
 
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                                    RT_SCOPE_LINK,
 
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                                    rtnl_route_set_type(),
 
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                                    RTN_UNICAST,
 
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                                    rtnl_route_set_dst(),
 
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                                    rtnl_route_set_table(),
 
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                                    RT_TABLE_MAIN,
 
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                                    rtnl_route_nh_alloc(),
 
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                                    rtnl_route_nh_set_ifindex(),
 
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                                    rtnl_route_add_nexthop(),
 
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                                    rtnl_route_add(),
 
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                                    rtnl_route_delete(),
 
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                                    rtnl_route_put(),
 
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                                    rtnl_route_nh_free() */
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#include <netlink/socket.h>     /* struct nl_sock, nl_socket_alloc(),
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                                   nl_connect(), nl_socket_free() */
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#include <strings.h>            /* strcasecmp() */
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#include <sys/socket.h>         /* AF_UNSPEC, AF_INET6, AF_INET */
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#include <sysexits.h>           /* EX_USAGE, EX_OSERR */
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#include <netlink/route/link.h> /* struct rtnl_link,
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                                   rtnl_link_get_kernel(),
 
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#include <netlink/route/link.h> /* rtnl_link_get_kernel(),
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                                   rtnl_link_get_ifindex(),
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                                   rtnl_link_put() */
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#include <netinet/in.h>         /* sa_family_t */
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#include <inttypes.h>           /* PRIdMAX, intmax_t */
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#include <stdint.h>             /* uint8_t */
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bool debug = false;
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const char *argp_program_version = "mandos-client-iprouteadddel " VERSION;
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__attribute__((format (gnu_printf, 2, 3), nonnull))
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int fprintf_plus(FILE *stream, const char *format, ...){
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  va_list ap;
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  va_start(ap, format);
 
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  va_start (ap, format);
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  fprintf(stream, "Mandos plugin helper %s: ",
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          program_invocation_short_name);
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  }
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  /* Set interface index number on nexthop object */
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  rtnl_route_nh_set_ifindex(nexthop, ifindex);
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  /* Set route to use nexthop object */
 
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  /* Set route tu use nexthop object */
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  rtnl_route_add_nexthop(route, nexthop);
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  /* Add or delete route? */
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  if(arguments.add){