home: add homectl client tool

meson.build

@@ -2089,6 +2089,19 @@ if conf.get('ENABLE_HOMED') == 1
                    install_rpath : rootlibexecdir,
                    install : true,
                    install_dir : rootlibexecdir)
+
+        executable('homectl',
+                   homectl_sources,
+                   include_directories : includes,
+                   link_with : [libshared],
+                   dependencies : [threads,
+                                   libcrypt,
+                                   libopenssl,
+                                   libp11kit,
+                                   libpwquality],
+                   install_rpath : rootlibexecdir,
+                   install : true,
+                   install_dir : rootbindir)
 endif
 
 foreach alias : ['halt', 'poweroff', 'reboot', 'runlevel', 'shutdown', 'telinit']

src/home/meson.build

@@ -52,6 +52,16 @@ systemd_homed_sources = files('''
         user-record-util.h
 '''.split())
 
+homectl_sources = files('''
+        home-util.c
+        home-util.h
+        homectl.c
+        pwquality-util.c
+        pwquality-util.h
+        user-record-util.c
+        user-record-util.h
+'''.split())
+
 if conf.get('ENABLE_HOMED') == 1
         install_data('org.freedesktop.home1.conf',
                      install_dir : dbuspolicydir)

src/home/pwquality-util.c

@@ -10,6 +10,7 @@
 
 #include "bus-common-errors.h"
 #include "home-util.h"
+#include "memory-util.h"
 #include "pwquality-util.h"
 #include "strv.h"
 
@@ -125,6 +126,47 @@ int quality_check_password(
         return 0;
 }
 
+#define N_SUGGESTIONS 6
+
+int suggest_passwords(void) {
+        _cleanup_(pwquality_free_settingsp) pwquality_settings_t *pwq = NULL;
+        _cleanup_strv_free_erase_ char **suggestions = NULL;
+        _cleanup_(erase_and_freep) char *joined = NULL;
+        char buf[PWQ_MAX_ERROR_MESSAGE_LEN];
+        void *auxerror;
+        size_t i;
+        int r;
+
+        pwq = pwquality_default_settings();
+        if (!pwq)
+                return log_oom();
+
+        r = pwquality_read_config(pwq, NULL, &auxerror);
+        if (r < 0)
+                log_warning_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to read libpwquality configuation, ignoring: %s",
+                                  pwquality_strerror(buf, sizeof(buf), r, auxerror));
+
+        pwquality_maybe_disable_dictionary(pwq);
+
+        suggestions = new0(char*, N_SUGGESTIONS);
+        if (!suggestions)
+                return log_oom();
+
+        for (i = 0; i < N_SUGGESTIONS; i++) {
+                r = pwquality_generate(pwq, 64, suggestions + i);
+                if (r < 0)
+                        return log_error_errno(SYNTHETIC_ERRNO(EIO), "Failed to generate password, ignoring: %s",
+                                               pwquality_strerror(buf, sizeof(buf), r, NULL));
+        }
+
+        joined = strv_join(suggestions, " ");
+        if (!joined)
+                return log_oom();
+
+        log_info("Password suggestions: %s", joined);
+        return 0;
+}
+
 #else
 
 int quality_check_password(
@@ -137,4 +179,8 @@ int quality_check_password(
 
         return 0;
 }
+
+int suggest_passwords(void) {
+        return 0;
+}
 #endif

src/home/pwquality-util.h

@@ -5,3 +5,5 @@
 #include "user-record.h"
 
 int quality_check_password(UserRecord *hr, UserRecord *secret, sd_bus_error *error);
+
+int suggest_passwords(void);