Mercurial > trustbridge
changeset 648:e41a2537b84d
Implement root installation
We now iterate over all users that do not obviously have their
login shell disabled and look for NSS directories in their home
directory, dropping our privileges to do so.
author | Andre Heinecke <andre.heinecke@intevation.de> |
---|---|
date | Wed, 25 Jun 2014 12:44:47 +0200 |
parents | 51830f4912c2 |
children | 129e611eaf50 |
files | cinst/nssstore_linux.c |
diffstat | 1 files changed, 31 insertions(+), 5 deletions(-) [+] |
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line diff
--- a/cinst/nssstore_linux.c Wed Jun 25 10:56:31 2014 +0200 +++ b/cinst/nssstore_linux.c Wed Jun 25 12:44:47 2014 +0200 @@ -20,6 +20,7 @@ #include <stdlib.h> #include <limits.h> #include <errno.h> +#include <pwd.h> #include "nssstore.h" #include "logging.h" @@ -158,15 +159,15 @@ if (pid == (pid_t) 0) { /* Drop privileges */ - if (setuid (uid) || setgid (gid)) + if (setgid (gid) || setuid (uid)) { + syslog_error_printf("Failed to drop privileges: %s", strerror(errno)); exit(-1); } close (pipe_fd[1]); dup2 (pipe_fd[0], 0); close (pipe_fd[0]); - /* TODO find path based on current executable */ execve (argv[0], argv, envp); exit (127); } @@ -238,7 +239,8 @@ int write_stores_nss (char **to_install, char **to_remove) { - uid_t my_uid = getuid(); + struct passwd *usr_it = NULL; + uid_t my_uid = geteuid(); if (my_uid != 0) { @@ -269,8 +271,32 @@ return 0; } - printf ("Installation as root is not yet implemented\n"); - /* TODO root parse /etc/passwd for users with a home directory */ + + setpwent(); + + while ((usr_it = getpwent ()) != NULL) + { + /* Skip obvious system accounts */ + if (strcmp(usr_it->pw_shell, "/usr/sbin/nologin") == 0 || + strcmp(usr_it->pw_shell, "/bin/false") == 0) + { + continue; + } + /* A check if the home directory starts with /home might be + appropiate */ + start_procces_for_user (to_install, + to_remove, + usr_it->pw_uid, + usr_it->pw_gid, + usr_it->pw_dir); + + } + + endpwent(); + + waitpid (-1, NULL, 0); + + DEBUGPRINTF ("NSS installation done\n"); return 0; } #endif