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

  • Committer: Teddy Hogeborn
  • Date: 2019-07-27 10:11:45 UTC
  • Revision ID: teddy@recompile.se-20190727101145-jnpbpf8220gldbcd
Add dracut(8) support

Add support for the dracut(8) system for generating initramfs image
files; dracut is an alternative to the "initramfs-tools" package.

* .bzrignore (dracut-module/password-agent): Ignore new binary file.
* dracut-module: New directory for the dracut module.
* INSTALL (Prerequisites/Libraries/Mandos Client): Add dracut as an
                                                   alternative to
                                                   initramfs-tools,
                                                   and also add GLib.
* Makefile (DRACUTMODULE, GLIB_CFLAGS, GLIB_LIBS): New.
  (CPROGS): Add "dracut-module/password-agent".
  (DOCS): Add "dracut-module/password-agent.8mandos".
  (dracut-module/password-agent.8mandos): New.
  (dracut-module/password-agent.8mandos.xhtml): - '' -
  (dracut-module/password-agent): - '' -
  (check): Add command to run tests of password-agent(8mandos).
  (install-client-nokey): Also install the dracut module directory,
                          its files, and the password-agent(8mandos)
                          manual page.
  (install-client): To update the initramfs image file, run
                    update-initramfs or dracut depending on what is
                    installed.
  (uninstall-client): - '' - and also uninstall the the files in the
                      dracut module directory, that directory itself,
                      and the password-agent(8mandos) manual page.
* debian/control (Build-Depends): Add "libglib2.0-dev (>=2.40)".
  (Package: mandos-client/Depends): Add "dracut (>= 044+241-3)" as an
                                    alternative dependency to
                                    initramfs-tools.
  (Package: mandos-client/Conflicts): New; set to
                                      "dracut-config-generic".
  (debian/mandos-client.README.Debian): Document alternative commands
                                        to update the initramfs image
                                        for when dracut is used.
* debian/mandos-client.postinst (update_initramfs): Use alternative
                                                    commands to update
                                                    the initramfs
                                                    image for when
                                                    dracut is used.
* debian/tests/control (password-agent, password-agent-suid): Add two
                                                              new tests.
* dracut-module/ask-password-mandos.path: New.
* dracut-module/ask-password-mandos.service: - '' -
* dracut-module/cmdline-mandos.sh: - '' -
* dracut-module/module-setup.sh: - '' -
* dracut-module/password-agent.c: - '' -
* dracut-module/password-agent.xml: - '' -
* initramfs-unpack: Use the dracut "skipcpio" command, if available.
                    Also be more flexible and try hard to detect where
                    compressed data starts.
* plugins.d/mandos-client.xml (SECURITY): Be more precise that the
                                          mandos-client binary might
                                          not always be setuid, but
                                          that the program assumes
                                          that it has been started
                                          that way.
* plugins.d/password-prompt.c: Add new "--prompt" option.
  (conflict_detection): First try to detect the new PID file of
                        plymouth.
  (main): Define and use new "prompt" variable.
* plugins.d/password-prompt.xml (SYNOPSIS): Show new --prompt option.
  (DESCRIPTION): Describe new behavior of looking for plymouth PID
                 file.
  (OPTIONS): Document new "--prompt" option.
  (ENVIRONMENT): Clarify that the CRYPTTAB_SOURCE and CRYPTTAB_NAME
                 environment variables are not used if the --prompt
                 option is used.  Remove unnecessarily specific
                 details about where the CRYPTTAB_SOURCE and
                 CRYPTTAB_NAME comes from, since this can now be
                 either initramfs-tools or dracut.
  (SEE ALSO): Remove superfluous crypttab(5) reference, and add commas
              to separate the other references.
* plugins.d/plymouth.c: Add new "--prompt" and "--debug" options.
  (debug): New global flag.
  (fprintf_plus): New function, used for debug output.
  (exec_and_wait): Add extra "const" to "argv" argument.
  (main): Define and use new "prompt" variable.  Add debug output.
  (main/options, main/parse_opt): New; used to parse options.
* plugins.d/plymouth.xml (SYNOPSIS): Show new options.
  (OPTIONS): Document new options.
  (ENVIRONMENT): Clarify that the cryptsource and crypttarget
                 environment variables are not used if the --prompt
                 option is used.  Remove unnecessarily specific
                 details about where the cryptsource and crypttarget
                 comes from, since this can now be either
                 initramfs-tools or dracut.
  (EXAMPLE): Add an example using an option.
  (SEE ALSO): Remove superfluous crypttab(5) reference.
* plugins.d/splashy.xml (ENVIRONMENT): Clarify that the cryptsource
                                       and crypttarget environment
                                       variables are not used if the
                                       --prompt option is used.
                                       Remove unnecessarily specific
                                       details about where the
                                       cryptsource and crypttarget
                                       comes from, since this can now
                                       be either initramfs-tools or
                                       dracut.
  (SEE ALSO): Remove superfluous crypttab(5) reference.
* plugins.d/usplash.xml (ENVIRONMENT): Clarify that the cryptsource
                                       and crypttarget environment
                                       variables are not used if the
                                       --prompt option is used.
                                       Remove unnecessarily specific
                                       details about where the
                                       cryptsource and crypttarget
                                       comes from, since this can now
                                       be either initramfs-tools or
                                       dracut.
  (SEE ALSO): Remove superfluous crypttab(5) reference.

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plugin-helpers/mandos-client-iprouteadddel.c
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/* 
3
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 * iprouteadddel - Add or delete direct route to a local IP address
4
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 * 
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 * Copyright © 2015 Teddy Hogeborn
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 * Copyright © 2015 Björn Påhlsson
7
 
 * 
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 * This program is free software: you can redistribute it and/or
9
 
 * modify it under the terms of the GNU General Public License as
10
 
 * published by the Free Software Foundation, either version 3 of the
11
 
 * License, or (at your option) any later version.
12
 
 * 
13
 
 * This program is distributed in the hope that it will be useful, but
 
5
 * Copyright © 2015-2018 Teddy Hogeborn
 
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 * Copyright © 2015-2018 Björn Påhlsson
 
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 * 
 
8
 * This file is part of Mandos.
 
9
 * 
 
10
 * Mandos is free software: you can redistribute it and/or modify it
 
11
 * under the terms of the GNU General Public License as published by
 
12
 * the Free Software Foundation, either version 3 of the License, or
 
13
 * (at your option) any later version.
 
14
 * 
 
15
 * Mandos is distributed in the hope that it will be useful, but
14
16
 * WITHOUT ANY WARRANTY; without even the implied warranty of
15
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16
18
 * General Public License for more details.
17
19
 * 
18
20
 * You should have received a copy of the GNU General Public License
19
 
 * along with this program.  If not, see
20
 
 * <http://www.gnu.org/licenses/>.
 
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 * along with Mandos.  If not, see <http://www.gnu.org/licenses/>.
21
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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             /* asprintf(),
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                                   program_invocation_short_name */
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#include <iso646.h>             /* not, or, and */
 
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#define _GNU_SOURCE             /* program_invocation_short_name */
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#include <stdbool.h>            /* bool, false, true */
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#include <stdio.h>              /* vfprintf(), stderr, stdout */
 
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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 <errno.h>              /* perror(), errno,
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                                   program_invocation_short_name */
 
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#include <stdlib.h>             /* EXIT_SUCCESS */
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#include <argp.h>               /* struct argp_option, error_t, struct
34
 
                                   argp_state, struct argp,
35
 
                                   argp_parse(), ARGP_KEY_ARG,
36
 
                                   ARGP_KEY_END, ARGP_ERR_UNKNOWN */
 
34
                                   argp_state, ARGP_KEY_ARG,
 
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                                   argp_usage(), ARGP_KEY_END,
 
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                                   ARGP_ERR_UNKNOWN, struct argp,
 
37
                                   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 */
38
 
#include <sysexits.h>           /* EX_OSERR */
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40
 
/* #include <linux/netlink.h> */
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/* #include <netlink/netlink.h> */
42
 
/* #include <netlink/socket.h> */
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#include <netlink/netlink.h>
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#include <netlink/socket.h>
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#include <netlink/cache.h>
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#include <netlink/route/link.h>  /* libnl xxx */
47
 
#include <netlink/route/route.h> /* libnl xxx */
 
42
#include <netlink/netlink.h>    /* struct nl_addr, nl_addr_parse(),
 
43
                                   nl_geterror(),
 
44
                                   nl_addr_get_family(),
 
45
                                   nl_addr_put() */
 
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#include <netlink/route/route.h> /* struct rtnl_route,
 
47
                                    struct rtnl_nexthop,
 
48
                                    rtnl_route_alloc(),
 
49
                                    rtnl_route_set_family(),
 
50
                                    rtnl_route_set_protocol(),
 
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                                    RTPROT_BOOT,
 
52
                                    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(),
 
58
                                    RT_TABLE_MAIN,
 
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                                    rtnl_route_nh_alloc(),
 
60
                                    rtnl_route_nh_set_ifindex(),
 
61
                                    rtnl_route_add_nexthop(),
 
62
                                    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() */
 
66
#include <netlink/socket.h>     /* struct nl_sock, nl_socket_alloc(),
 
67
                                   nl_connect(), nl_socket_free() */
 
68
#include <netlink/route/link.h> /* rtnl_link_get_kernel(),
 
69
                                   rtnl_link_get_ifindex(),
 
70
                                   rtnl_link_put() */
48
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49
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bool debug = false;
50
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const char *argp_program_version = "mandos-client-iprouteadddel " VERSION;
208
231
  /* Create nexthop */
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  nexthop = rtnl_route_nh_alloc();
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  if(nexthop == NULL){
211
 
    fprintf_plus(stderr, "Failed to get netlink route nexthop:\n");
 
234
    fprintf_plus(stderr, "Failed to get netlink route nexthop\n");
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    exitcode = EX_OSERR;
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    goto end;
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  }
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  }
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  /* Set interface index number on nexthop object */
222
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  rtnl_route_nh_set_ifindex(nexthop, ifindex);
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  /* Set route tu use nexthop object */
 
246
  /* Set route to 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){