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  • Committer: Teddy Hogeborn
  • Date: 2015-07-20 03:03:33 UTC
  • mto: (237.7.594 trunk)
  • mto: This revision was merged to the branch mainline in revision 325.
  • 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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plugins.d/splashy.c
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/*
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 * Splashy - Read a password from splashy and output it
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 * 
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 * Copyright © 2008-2018, 2021 Teddy Hogeborn
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 * Copyright © 2008-2018, 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 © 2008-2014 Teddy Hogeborn
 
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 * Copyright © 2008-2014 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             /* vasprintf(),
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                                   program_invocation_short_name,
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                                   asprintf(), TEMP_FAILURE_RETRY() */
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#include <sys/types.h>          /* sig_atomic_t, pid_t, setuid(),
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                                   geteuid(), setsid() */
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#include <stdarg.h>             /* va_list, va_start(), vfprintf() */
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#include <stdio.h>              /* vasprintf(), fprintf(), stderr,
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                                   vfprintf(), asprintf() */
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#include <errno.h>              /* program_invocation_short_name,
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                                   errno, EACCES, ENOTDIR, ELOOP,
 
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#define _GNU_SOURCE             /* TEMP_FAILURE_RETRY(), asprintf() */
 
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#include <signal.h>             /* sig_atomic_t, struct sigaction,
 
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                                   sigemptyset(), sigaddset(), SIGINT,
 
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                                   SIGHUP, SIGTERM, sigaction,
 
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                                   SIG_IGN, kill(), SIGKILL */
 
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#include <stddef.h>             /* NULL */
 
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#include <stdlib.h>             /* getenv() */
 
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#include <stdio.h>              /* asprintf(), vasprintf(), vprintf(),
 
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                                   fprintf() */
 
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#include <stdlib.h>             /* EXIT_FAILURE, free(),
 
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                                   EXIT_SUCCESS */
 
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#include <sys/types.h>          /* pid_t, DIR, struct dirent,
 
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                                   ssize_t */
 
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#include <dirent.h>             /* opendir(), readdir(), closedir() */
 
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#include <inttypes.h>           /* intmax_t, strtoimax() */
 
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#include <sys/stat.h>           /* struct stat, lstat(), S_ISLNK */
 
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#include <iso646.h>             /* not, or, and */
 
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#include <unistd.h>             /* readlink(), fork(), execl(),
 
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                                   sleep(), dup2() STDERR_FILENO,
 
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                                   STDOUT_FILENO, _exit(),
 
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                                   pause() */
 
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#include <string.h>             /* memcmp(), strerror() */
 
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#include <errno.h>              /* errno, EACCES, ENOTDIR, ELOOP,
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                                   ENOENT, ENAMETOOLONG, EMFILE,
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                                   ENFILE, ENOMEM, ENOEXEC, EINVAL,
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                                   E2BIG, EFAULT, EIO, ETXTBSY,
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                                   EISDIR, ELIBBAD, EPERM, EINTR,
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                                   ECHILD */
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#include <string.h>             /* strerror(), memcmp() */
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#include <error.h>              /* error() */
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#include <stdlib.h>             /* free(), EXIT_FAILURE, getenv(),
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                                   EXIT_SUCCESS, abort() */
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#include <stddef.h>             /* NULL */
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#include <dirent.h>             /* DIR, opendir(), struct dirent,
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                                   readdir(), closedir() */
 
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#include <sys/wait.h>           /* waitpid(), WIFEXITED(),
 
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                                   WEXITSTATUS() */
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#include <sysexits.h>           /* EX_OSERR, EX_OSFILE,
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                                   EX_UNAVAILABLE */
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#include <inttypes.h>           /* intmax_t, strtoimax() */
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#include <iso646.h>             /* or, not, and */
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#include <unistd.h>             /* ssize_t, readlink(), fork(),
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                                   execl(), _exit(),
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                                   TEMP_FAILURE_RETRY(), sleep(),
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                                   setuid(), geteuid(), setsid(),
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                                   chdir(), dup2(), STDERR_FILENO,
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                                   STDOUT_FILENO, pause() */
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#include <sys/stat.h>           /* struct stat, lstat(), S_ISLNK() */
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#include <signal.h>             /* struct sigaction, sigemptyset(),
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                                   sigaddset(), SIGINT, SIGHUP,
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                                   SIGTERM, SIG_IGN, kill(), SIGKILL,
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                                   SIG_DFL, raise() */
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#include <sys/wait.h>           /* waitpid(), WIFEXITED(),
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                                   WEXITSTATUS() */
 
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#include <stdarg.h>             /* va_list, va_start(), ... */
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sig_atomic_t interrupted_by_signal = 0;
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int signal_received;