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  • Committer: Teddy Hogeborn
  • Date: 2021-01-31 21:40:15 UTC
  • Revision ID: teddy@recompile.se-20210131214015-yz7ogk2mqfdfflo6
Work around Debian bug #981302

* plugin-runner.c (main): If the /dev/fd symlink is missing, create
  it.
* plugins.d/mandos-client.c (main): - '' -

Reported-By: Eero Häkkinen <+debian-bts-2021@eero.xn--hkkinen-5wa.fi>
Suggested-by: Eero Häkkinen <+debian-bts-2021@eero.xn--hkkinen-5wa.fi>
Thanks: Eero Häkkinen for bug report and analysis

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Lines of Context:
plugins.d/mandos-client.c
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 * "browse_callback", and parts of "main".
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 * 
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 * Everything else is
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 * Copyright © 2008-2019 Teddy Hogeborn
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 * Copyright © 2008-2019 Björn Påhlsson
 
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 * Copyright © 2008-2020 Teddy Hogeborn
 
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 * Copyright © 2008-2020 Björn Påhlsson
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 * 
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 * This file is part of Mandos.
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 * 
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#include <unistd.h>             /* close(), SEEK_SET, off_t, write(),
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                                   getuid(), getgid(), seteuid(),
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                                   setgid(), pause(), _exit(),
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                                   unlinkat() */
 
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                                   unlinkat(), lstat(), symlink() */
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#include <arpa/inet.h>          /* inet_pton(), htons() */
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#include <iso646.h>             /* not, or, and */
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#include <argp.h>               /* struct argp_option, error_t, struct
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        fprintf_plus(stderr,
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                     "Setting system clock to key file mtime");
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      }
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      time_t keytime = keystat.st_mtim.tv_sec;
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      if(stime(&keytime) != 0){
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        perror_plus("stime");
 
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      if(clock_settime(CLOCK_REALTIME, &keystat.st_mtim) != 0){
 
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        perror_plus("clock_settime");
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      }
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      ret = lower_privileges();
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      if(ret != 0){
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  }
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  {
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    /* Work around Debian bug #633582:
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       <https://bugs.debian.org/633582> */
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    /* Re-raise privileges */
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    ret = raise_privileges();
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    if(ret != 0){
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    } else {
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      struct stat st;
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      /* Work around Debian bug #633582:
 
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         <https://bugs.debian.org/633582> */
 
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      if(strcmp(seckey, PATHDIR "/" SECKEY) == 0){
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        int seckey_fd = open(seckey, O_RDONLY);
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        if(seckey_fd == -1){
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        }
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      }
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      /* Work around Debian bug #981302
 
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         <https://bugs.debian.org/981302> */
 
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      if(lstat("/dev/fd", &st) != 0 and errno == ENOENT){
 
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        ret = symlink("/proc/self/fd", "/dev/fd");
 
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        if(ret == -1){
 
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          perror_plus("Failed to create /dev/fd symlink");
 
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        }
 
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      }
 
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      /* Lower privileges */
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      ret = lower_privileges();
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      if(ret != 0){