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

  • Committer: Teddy Hogeborn
  • Date: 2016-06-03 17:27:03 UTC
  • Revision ID: teddy@recompile.se-20160603172703-mc6tjor6rhq4xy74
mandos: Bug fix: Do multiprocessing cleanup correctly on exit

* mandos (main): Save module "multiprocessing" and open file "wnull"
                 as scope variables accessible by function cleanup(),
                 since the module and global variable may not be
                 accessible when the cleanup() function is run as
                 scheduled by atexit().

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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, 2021-2022 Teddy Hogeborn
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 * Copyright © 2015-2018, 2021-2022 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 © 2015-2016 Teddy Hogeborn
 
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 * Copyright © 2015-2016 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){