First-boot sss_seed tool

7 files changed, 1011 insertions, 3 deletions

diff --git a/Makefile.am b/Makefile.am
index 71d4db71..9b361a8c 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -81,7 +81,8 @@ sbin_PROGRAMS = \
     sss_groupmod \
     sss_groupshow \
     sss_cache \
-    sss_debuglevel
+    sss_debuglevel \
+    sss_seed
 
 sssdlibexec_PROGRAMS = \
     sssd_nss \
@@ -722,6 +723,13 @@ sss_debuglevel_LDADD = \
     libsss_util.la \
     $(TOOLS_LIBS)
 
+sss_seed_SOURCES = \
+    src/tools/sss_seed.c \
+    $(SSSD_TOOLS_OBJ)
+sss_seed_LDADD = \
+    libsss_util.la \
+    $(TOOLS_LIBS)
+
 if BUILD_SUDO
 sss_sudo_cli_SOURCES = \
     src/sss_client/common.c \
diff --git a/contrib/sssd.spec.in b/contrib/sssd.spec.in
index 15e9dda4..ccb2ce3f 100644
--- a/contrib/sssd.spec.in
+++ b/contrib/sssd.spec.in
@@ -414,6 +414,7 @@ rm -rf $RPM_BUILD_ROOT
 %{_sbindir}/sss_obfuscate
 %{_sbindir}/sss_cache
 %{_sbindir}/sss_debuglevel
+%{_sbindir}/sss_seed
 %{_mandir}/man8/sss_groupadd.8*
 %{_mandir}/man8/sss_groupdel.8*
 %{_mandir}/man8/sss_groupmod.8*
@@ -424,6 +425,7 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man8/sss_obfuscate.8*
 %{_mandir}/man8/sss_cache.8*
 %{_mandir}/man8/sss_debuglevel.8*
+%{_mandir}/man8/sss_seed.8*
 
 %files -n libsss_idmap
 %defattr(-,root,root,-)
diff --git a/src/man/Makefile.am b/src/man/Makefile.am
index 4ed76c8a..eb879802 100644
--- a/src/man/Makefile.am
+++ b/src/man/Makefile.am
@@ -42,7 +42,7 @@ man_MANS = \
     sssd.8 sssd.conf.5 sssd-ldap.5 \
     sssd-krb5.5 sssd-ipa.5 sssd-simple.5 sssd-ad.5 \
     sssd_krb5_locator_plugin.8 sss_groupshow.8 \
-    pam_sss.8 sss_obfuscate.8 sss_cache.8 sss_debuglevel.8
+    pam_sss.8 sss_obfuscate.8 sss_cache.8 sss_debuglevel.8 sss_seed.8
 
 if BUILD_SSH
 man_MANS += sss_ssh_authorizedkeys.1 sss_ssh_knownhostsproxy.1
diff --git a/src/man/include/seealso.xml b/src/man/include/seealso.xml
index 80c228e3..3763e9a5 100644
--- a/src/man/include/seealso.xml
+++ b/src/man/include/seealso.xml
@@ -59,6 +59,9 @@
                 <refentrytitle>sss_obfuscate</refentrytitle><manvolnum>8</manvolnum>
             </citerefentry>,
             <citerefentry>
+                <refentrytitle>sss_seed</refentrytitle><manvolnum>8</manvolnum>
+            </citerefentry>,
+            <citerefentry>
                 <refentrytitle>sssd_krb5_locator_plugin</refentrytitle><manvolnum>8</manvolnum>
             </citerefentry>,
             <phrase condition="with_ssh">
@@ -78,4 +81,4 @@
                 <refentrytitle>pam_sss</refentrytitle><manvolnum>8</manvolnum>
             </citerefentry>.
         </para>
-    </refsect1>
\ No newline at end of file
+    </refsect1>
diff --git a/src/man/po/po4a.cfg b/src/man/po/po4a.cfg
index 1f05c7a4..e20b7136 100644
--- a/src/man/po/po4a.cfg
+++ b/src/man/po/po4a.cfg
@@ -20,6 +20,7 @@
 [type:docbook] sss_usermod.8.xml $lang:$(builddir)/$lang/sss_usermod.8.xml
 [type:docbook] sss_cache.8.xml $lang:$(builddir)/$lang/sss_cache.8.xml
 [type:docbook] sss_debuglevel.8.xml $lang:$(builddir)/$lang/sss_debuglevel.8.xml
+[type:docbook] sss_seed.8.xml $lang:$(builddir)/$lang/sss_seed.8.xml
 [type:docbook] sss_ssh_authorizedkeys.1.xml $lang:$(builddir)/$lang/sss_ssh_authorizedkeys.1.xml
 [type:docbook] sss_ssh_knownhostsproxy.1.xml $lang:$(builddir)/$lang/sss_ssh_knownhostsproxy.1.xml
 [type:docbook] include/service_discovery.xml $lang:$(builddir)/$lang/include/service_discovery.xml opt:"-k 0"
diff --git a/src/man/sss_seed.8.xml b/src/man/sss_seed.8.xml
new file mode 100644
index 00000000..e83b610b
--- /dev/null
+++ b/src/man/sss_seed.8.xml
@@ -0,0 +1,165 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE reference PUBLIC "-//OASIS//DTD DocBook V4.4//EN"
+"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
+<reference>
+<title>SSSD Manual pages</title>
+<refentry>
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="include/upstream.xml" />
+
+    <refmeta>
+        <refentrytitle>sss_seed</refentrytitle>
+        <manvolnum>8</manvolnum>
+    </refmeta>
+
+    <refnamediv id='name'>
+        <refname>sss_seed</refname>
+        <refpurpose>seed the SSSD cache with a user</refpurpose>
+    </refnamediv>
+
+    <refsynopsisdiv id='synopsis'>
+        <cmdsynopsis>
+            <command>sss_seed</command>
+            <arg choice='opt'>
+                <replaceable>options</replaceable>
+            </arg>
+            <arg choice='plain'>-D <replaceable>DOMAIN</replaceable></arg>
+            <arg choice='plain'>-n <replaceable>USER</replaceable></arg>
+        </cmdsynopsis>
+    </refsynopsisdiv>
+
+    <refsect1 id='description'>
+        <title>DESCRIPTION</title>
+        <para>
+            <command>sss_seed</command> seeds the SSSD cache with a user entry
+            and temporary password. If a user entry is already present in the
+            SSSD cache then the entry is updated with the temporary password.
+        </para>
+        <para>
+        </para>
+    </refsect1>
+
+    <refsect1 id='options'>
+        <title>OPTIONS</title>
+        <variablelist remap='IP'>
+            <varlistentry>
+                <term>
+                    <option>-D</option>,<option>--domain</option>
+                    <replaceable>DOMAIN</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Provide the name of the domain in which the
+                        user is a member of. The domain is also used to
+                        retrieve user information. The domain must be configured
+                        in sssd.conf. The <replaceable>DOMAIN</replaceable>
+                        option must be provided.
+                        Information retrieved from the domain
+                        overrides what is provided in the options.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-n</option>,<option>--username</option>
+                    <replaceable>USER</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        The username of the entry to be created or modified
+                        in the cache. The <replaceable>USER</replaceable> option
+                        must be provided.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-u</option>,<option>--uid</option>
+                    <replaceable>UID</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Set the UID of the user to
+                        <replaceable>UID</replaceable>.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-g</option>,<option>--gid</option>
+                    <replaceable>GID</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Set the GID of the user to
+                        <replaceable>GID</replaceable>.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-c</option>,<option>--gecos</option>
+                    <replaceable>COMMENT</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Any text string describing the user. Often used as
+                        the field for the user's full name.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-h</option>,<option>--home</option>
+                    <replaceable>HOME_DIR</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Set the home directory of the user to
+                        <replaceable>HOME_DIR</replaceable>.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-s</option>,<option>--shell</option>
+                    <replaceable>SHELL</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Set the login shell of the user to
+                        <replaceable>SHELL</replaceable>.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-i</option>,<option>--interactive</option>
+                </term>
+                <listitem>
+                    <para>
+                        Interactive mode for entering user information. This
+                        option will only prompt for information not provided in
+                        the options or retrieved from the domain.
+                    </para>
+                </listitem>
+            </varlistentry>
+            <varlistentry>
+                <term>
+                    <option>-p</option>,<option>--password-file</option>
+                    <replaceable>PASS_FILE</replaceable>
+                </term>
+                <listitem>
+                    <para>
+                        Specify file to read user's password from. (if not
+                        specified password is prompted for)
+                    </para>
+                </listitem>
+            </varlistentry>
+           <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="include/param_help.xml" />
+        </variablelist>
+    </refsect1>
+
+    <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="include/seealso.xml" />
+
+</refentry>
+</reference>
diff --git a/src/tools/sss_seed.c b/src/tools/sss_seed.c
new file mode 100644
index 00000000..9136de34
--- /dev/null
+++ b/src/tools/sss_seed.c
@@ -0,0 +1,829 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <talloc.h>
+#include <popt.h>
+#include <errno.h>
+#include <unistd.h>
+#include <limits.h>
+#include <grp.h>
+#include <pwd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
+
+#include "util/util.h"
+#include "db/sysdb.h"
+#include "tools/tools_util.h"
+#include "tools/sss_sync_ops.h"
+#include "confdb/confdb.h"
+
+#ifndef BUFSIZE
+#define BUFSIZE 1024
+#endif
+
+#ifndef PASS_MAX
+#define PASS_MAX 64
+#endif
+
+enum seed_pass_method {
+    PASS_PROMPT,
+    PASS_FILE
+};
+
+struct user_ctx {
+    char *domain_name;
+
+    char *name;
+    uid_t uid;
+    gid_t gid;
+    char *gecos;
+    char *home;
+    char *shell;
+
+    char *password;
+};
+
+struct seed_ctx {
+    struct confdb_ctx *confdb;
+    struct sysdb_ctx *sysdb;
+
+    struct user_ctx *uctx;
+
+    char *password_file;
+    enum seed_pass_method password_method;
+
+    bool interact;
+    bool user_cached;
+};
+
+
+static int seed_prompt(const char *req)
+{
+    size_t len = 0;
+    size_t i = 0;
+    char *prompt = NULL;
+    int ret = EOK;
+
+    prompt = talloc_asprintf(NULL, _("Enter %s:"), req);
+    if (prompt == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    while (prompt[i] != '\0') {
+       errno = 0;
+       len = sss_atomic_write_s(STDOUT_FILENO, &prompt[i++], 1);
+       if (len == -1) {
+           ret = errno;
+           DEBUG(SSSDBG_CRIT_FAILURE, ("write failed [%d][%s].\n",
+                                       ret, strerror(ret)));
+           goto done;
+       }
+    }
+
+done:
+    talloc_free(prompt);
+    return ret;
+}
+
+static int seed_str_input(TALLOC_CTX *mem_ctx,
+                          const char *req,
+                          char **_input)
+{
+    char buf[BUFSIZE+1];
+    size_t len = 0;
+    size_t bytes_read = 0;
+    int ret = EOK;
+
+    ret = seed_prompt(req);
+    if (ret != EOK) {
+        return ret;
+    }
+
+    errno = 0;
+    while ((bytes_read = sss_atomic_read_s(STDIN_FILENO, buf+len, 1)) != 0) {
+        if (bytes_read == -1) {
+            ret = errno;
+            DEBUG(SSSDBG_CRIT_FAILURE, ("read failed [%d][%s].\n",
+                                        ret, strerror(ret)));
+            return ret;
+        }
+        if (buf[len] == '\n' || len == BUFSIZE) {
+            buf[len] = '\0';
+            break;
+        }
+        len += bytes_read;
+    }
+
+    *_input = talloc_strdup(mem_ctx, buf);
+    if (*_input == NULL) {
+        ret = ENOMEM;
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to allocate input\n"));
+    }
+
+    return ret;
+}
+
+static int seed_id_input(const char *req,
+                         uid_t *_id_input)
+{
+    char buf[BUFSIZE+1];
+    size_t len = 0;
+    size_t bytes_read = 0;
+    char *endptr = NULL;
+    int ret = EOK;
+
+    ret = seed_prompt(req);
+    if (ret != EOK) {
+        return ret;
+    }
+
+    errno = 0;
+    while ((bytes_read = sss_atomic_read_s(STDIN_FILENO, buf+len, 1)) != 0) {
+        if (bytes_read == -1) {
+            ret = errno;
+            DEBUG(SSSDBG_CRIT_FAILURE, ("read failed [%d][%s].\n",
+                                        ret, strerror(ret)));
+            return ret;
+        }
+        if (buf[len] == '\n' || len == BUFSIZE) {
+            buf[len] = '\0';
+            break;
+        }
+        len += bytes_read;
+    }
+
+    if (isdigit(*buf)) {
+        errno = 0;
+        *_id_input = (uid_t)strtoll(buf, &endptr, 10);
+        if (errno != 0) {
+            ret = errno;
+            DEBUG(SSSDBG_OP_FAILURE, ("strtoll failed on [%s]: [%d][%s].\n",
+                                      (char *)buf, ret, strerror(ret)));
+            return ret;
+        }
+        if (*endptr != '\0') {
+            DEBUG(SSSDBG_MINOR_FAILURE, ("extra characters [%s] after "
+                                         "ID [%d]\n", endptr, *_id_input));
+        }
+    } else {
+        ret = EINVAL;
+        DEBUG(SSSDBG_OP_FAILURE, ("Failed to get %s input.\n", req));
+    }
+
+    return ret;
+}
+
+static int seed_password_input_prompt(TALLOC_CTX *mem_ctx, char **_password)
+{
+    TALLOC_CTX *tmp_ctx = NULL;
+    char *password = NULL;
+    char *temp = NULL;
+    int ret = EOK;
+
+    tmp_ctx = talloc_new(NULL);
+    if (tmp_ctx == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Could not allocate temp context\n"));
+        ret = ENOMEM;
+        goto done;
+    }
+
+    temp = getpass("Enter temporary password:");
+    if (temp == NULL) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Failed to get prompted password\n"));
+        ret = EINVAL;
+        goto done;
+    }
+    password = talloc_strdup(tmp_ctx, temp);
+    if (password == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    talloc_set_destructor((TALLOC_CTX *)password, password_destructor);
+
+    temp = getpass("Enter temporary password again:");
+    if (temp == NULL) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Failed to get prompted password\n"));
+        ret = EINVAL;
+        goto done;
+    }
+
+    if (strncmp(temp,password,strlen(password)) != 0) {
+        ERROR("Passwords do not match\n");
+        DEBUG(SSSDBG_MINOR_FAILURE, ("Provided passwords do not match\n"));
+        ret = EINVAL;
+        goto done;
+    }
+
+    *_password = talloc_steal(mem_ctx, password);
+
+done:
+    talloc_free(tmp_ctx);
+    return ret;
+}
+
+static int seed_password_input_file(TALLOC_CTX *mem_ctx,
+                                    char *filename,
+                                    char **_password)
+{
+    TALLOC_CTX *tmp_ctx = NULL;
+    char *password = NULL;
+    int len = 0;
+    uint8_t buf[PASS_MAX+1];
+    int fd = -1;
+    int ret = EOK;
+
+    tmp_ctx = talloc_new(NULL);
+    if (tmp_ctx == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Could not allocate temp context\n"));
+        ret = ENOMEM;
+        goto done;
+    }
+
+    fd = open(filename, O_RDONLY);
+    if (fd == -1) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to open password file "
+                                    "[%s] [%d][%s]\n",
+                                    filename, errno, strerror(errno)));
+        ret = EINVAL;
+        goto done;
+    }
+
+    errno = 0;
+    len = sss_atomic_read_s(fd, buf, PASS_MAX);
+    if (len == -1) {
+        ret = errno;
+        DEBUG(SSSDBG_MINOR_FAILURE, ("Failed to read password from file "
+                                     "[%s] [%d][%s]\n",
+                                     filename, ret, strerror(ret)));
+        close(fd);
+        goto done;
+    }
+
+    close(fd);
+    buf[len] = '\0';
+
+    password = talloc_strdup(tmp_ctx, (char *)buf);
+    if (password == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    *_password = talloc_steal(mem_ctx, password);
+
+done:
+    talloc_free(tmp_ctx);
+    return ret;
+}
+
+static int seed_interactive_input(TALLOC_CTX *mem_ctx,
+                                  struct user_ctx *uctx,
+                                  struct user_ctx **_uctx)
+{
+    struct user_ctx *input_uctx = NULL;
+    int ret = EOK;
+
+    input_uctx = talloc_zero(NULL, struct user_ctx);
+    if (input_uctx == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    if (uctx->name == NULL) {
+        ret = seed_str_input(input_uctx, _("username"), &input_uctx->name);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE,
+                  ("Username interactive input failed.\n"));
+            goto done;
+        }
+    } else {
+        input_uctx->name = talloc_strdup(input_uctx, uctx->name);
+        if (input_uctx->name == NULL) {
+            ret = ENOMEM;
+            goto done;
+        }
+    }
+
+    if (uctx->uid == 0) {
+        ret = seed_id_input(_("UID"), &input_uctx->uid);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE, ("UID interactive input failed.\n"));
+            goto done;
+        }
+    } else {
+        input_uctx->uid = uctx->uid;
+    }
+
+    if (uctx->gid == 0) {
+        ret = seed_id_input(_("GID"), &input_uctx->gid);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE, ("GID interactive input failed.\n"));
+            goto done;
+        }
+    } else {
+        input_uctx->gid = uctx->gid;
+    }
+
+    if (uctx->gecos == NULL) {
+        ret = seed_str_input(input_uctx, _("user comment (gecos)"),
+                             &input_uctx->gecos);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE, ("Gecos interactive input failed.\n"));
+            goto done;
+        }
+    } else {
+        input_uctx->gecos = talloc_strdup(input_uctx, uctx->gecos);
+        if (input_uctx->gecos == NULL) {
+            ret = ENOMEM;
+            goto done;
+        }
+    }
+
+    if (uctx->home == NULL) {
+        ret = seed_str_input(input_uctx, _("home directory"),
+                             &input_uctx->home);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE,
+                  ("Home directory interactive input fialed.\n"));
+            goto done;
+        }
+    } else {
+        input_uctx->home = talloc_strdup(input_uctx, uctx->home);
+        if (input_uctx->home == NULL) {
+            ret = ENOMEM;
+            goto done;
+        }
+    }
+
+    if (uctx->shell == NULL) {
+        ret = seed_str_input(input_uctx, _("user login shell"),
+                             &input_uctx->shell);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_MINOR_FAILURE, ("Shell interactive input failed\n"));
+            goto done;
+        }
+    } else {
+        input_uctx->shell = talloc_strdup(input_uctx, uctx->shell);
+        if (input_uctx->shell == NULL) {
+            ret = ENOMEM;
+            goto done;
+        }
+    }
+
+done:
+    if (ret == EOK) {
+        *_uctx = talloc_steal(mem_ctx, input_uctx);
+    } else {
+        talloc_zfree(input_uctx);
+    }
+    return ret;
+}
+
+static int seed_init(TALLOC_CTX *mem_ctx,
+                     const int argc,
+                     const char **argv,
+                     struct seed_ctx **_sctx)
+{
+    TALLOC_CTX *tmp_ctx = NULL;
+    int pc_debug = SSSDBG_DEFAULT;
+    const char *pc_domain = NULL;
+    const char *pc_name = NULL;
+    uid_t pc_uid = 0;
+    gid_t pc_gid = 0;
+    const char *pc_gecos = NULL;
+    const char *pc_home = NULL;
+    const char *pc_shell = NULL;
+    const char *pc_password_file = NULL;
+
+    struct seed_ctx *sctx = NULL;
+
+    int ret = EOK;
+
+    poptContext pc = NULL;
+    struct poptOption options[] = {
+        POPT_AUTOHELP
+        { "debug", '\0', POPT_ARG_INT | POPT_ARGFLAG_DOC_HIDDEN, &pc_debug, 0,
+         _("The debug level to run with"), NULL },
+        { "domain", 'D', POPT_ARG_STRING, &pc_domain, 0, _("Domain"), NULL },
+        { "username", 'n', POPT_ARG_STRING, &pc_name, 0, _("Username"), NULL},
+        { "uid",   'u', POPT_ARG_INT, &pc_uid, 0, _("User UID"), NULL },
+        { "gid",   'g', POPT_ARG_INT, &pc_gid, 0, _("User GID"), NULL },
+        { "gecos", 'c', POPT_ARG_STRING, &pc_gecos, 0,
+         _("Comment string"), NULL},
+        { "home",  'h', POPT_ARG_STRING, &pc_home, 0,
+         _("Home directory"), NULL },
+        { "shell", 's', POPT_ARG_STRING, &pc_shell, 0, _("Login Shell"), NULL },
+        { "interactive", 'i', POPT_ARG_NONE, NULL, 'i',
+         _("Use interactive mode to enter user data"), NULL },
+        { "password-file", 'p', POPT_ARG_STRING, &pc_password_file, 0,
+         _("File from which user's password is read "
+           "(default is to prompt for password)"),NULL },
+        POPT_TABLEEND
+    };
+
+    /* init contexts */
+    tmp_ctx = talloc_new(NULL);
+    if (tmp_ctx == NULL) {
+        ret = ENOMEM;
+        goto fini;
+    }
+
+    sctx = talloc_zero(tmp_ctx, struct seed_ctx);
+    if (sctx == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Could not allocate tools context\n"));
+        ret = ENOMEM;
+        goto fini;
+    }
+
+    sctx->uctx = talloc_zero(sctx, struct user_ctx);
+    if (sctx->uctx == NULL) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Could not allocate user data context\n"));
+        ret = ENOMEM;
+        goto fini;
+    }
+
+    debug_prg_name = argv[0];
+    debug_level = debug_convert_old_level(pc_debug);
+
+    ret = set_locale();
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("set_locale failed (%d): %s\n",
+                                    ret, strerror(ret)));
+        ERROR("Error setting the locale\n");
+        ret = EINVAL;
+        goto fini;
+    }
+
+    CHECK_ROOT(ret, argv[0]);
+
+    /* parse arguments */
+    pc = poptGetContext(NULL, argc, argv, options, 0);
+    if (argc < 2) {
+        poptPrintUsage(pc,stderr,0);
+        ret = EINVAL;
+        goto fini;
+    }
+
+    poptSetOtherOptionHelp(pc, "[OPTIONS] -D <domain> -n <username>");
+    while ((ret = poptGetNextOpt(pc)) > 0) {
+        switch (ret) {
+            case 'i':
+                DEBUG(SSSDBG_TRACE_INTERNAL, ("Interactive mode selected\n"));
+                sctx->interact = true;
+                break;
+        }
+    }
+
+    if (ret != -1) {
+        BAD_POPT_PARAMS(pc, poptStrerror(ret), ret, fini);
+    }
+
+    /* check username provided */
+    if (pc_name == NULL) {
+        BAD_POPT_PARAMS(pc, _("Username must be specified\n"), ret, fini);
+    }
+
+    sctx->uctx->name = talloc_strdup(sctx->uctx, pc_name);
+    if (sctx->uctx->name == NULL) {
+        ret = ENOMEM;
+        goto fini;
+    }
+
+    /* check domain is provided */
+    if (pc_domain == NULL) {
+        BAD_POPT_PARAMS(pc, _("Domain must be specified.\n"), ret, fini);
+    }
+
+    sctx->uctx->domain_name = talloc_strdup(sctx->uctx, pc_domain);
+    if (sctx->uctx->domain_name == NULL) {
+        ret = ENOMEM;
+        goto fini;
+    }
+
+    poptFreeContext(pc);
+
+    ret = EOK;
+
+    /* copy all information provided from popt */
+    sctx->uctx->uid = pc_uid;
+    sctx->uctx->gid = pc_gid;
+    if (pc_gecos != NULL) {
+        sctx->uctx->gecos = talloc_strdup(sctx->uctx, pc_gecos);
+        if (sctx->uctx->gecos == NULL) {
+            ret = ENOMEM;
+            goto fini;
+        }
+    }
+    if (pc_home != NULL) {
+        sctx->uctx->home = talloc_strdup(sctx->uctx, pc_home);
+        if (sctx->uctx->home == NULL) {
+            ret = ENOMEM;
+            goto fini;
+        }
+    }
+    if (pc_shell != NULL) {
+        sctx->uctx->shell = talloc_strdup(sctx->uctx, pc_shell);
+        if (sctx->uctx->shell == NULL) {
+            ret = ENOMEM;
+            goto fini;
+        }
+    }
+
+    /* check if password file provided */
+    if (pc_password_file != NULL) {
+        sctx->password_file = talloc_strdup(sctx, pc_password_file);
+        if (sctx->password_file == NULL) {
+            ret = ENOMEM;
+            goto fini;
+        }
+        sctx->password_method = PASS_FILE;
+    } else {
+        sctx->password_method = PASS_PROMPT;
+    }
+
+    *_sctx = talloc_steal(mem_ctx, sctx);
+
+fini:
+    talloc_free(tmp_ctx);
+    return ret;
+}
+
+static int seed_init_db(TALLOC_CTX *mem_ctx,
+                        const char *domain_name,
+                        struct confdb_ctx **_confdb,
+                        struct sysdb_ctx **_sysdb)
+{
+    TALLOC_CTX *tmp_ctx = NULL;
+    char *confdb_path = NULL;
+    struct confdb_ctx *confdb = NULL;
+    struct sysdb_ctx *sysdb = NULL;
+    struct sss_domain_info *domain = NULL;
+    int ret = EOK;
+
+    tmp_ctx = talloc_new(NULL);
+    if (tmp_ctx == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    /* setup confdb */
+    confdb_path = talloc_asprintf(tmp_ctx, "%s/%s", DB_PATH, CONFDB_FILE);
+    if (confdb_path == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    ret = confdb_init(tmp_ctx, &confdb, confdb_path);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE,
+              ("Could not initialize connection to the confdb\n"));
+        ERROR("Could not initialize connection to the confdb\n");
+        goto done;
+    }
+
+    ret = sysdb_init_domain_and_sysdb(tmp_ctx, confdb, domain_name,
+                                      DB_PATH, &domain, &sysdb);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE,
+              ("Could not initialize connection to the sysdb\n"));
+        ERROR("Could not initialize the connection to the sysdb\n");
+        goto done;
+    }
+
+    *_sysdb = talloc_steal(mem_ctx, sysdb);
+    *_confdb = talloc_steal(mem_ctx, confdb);
+
+done:
+    talloc_free(tmp_ctx);
+    return ret;
+}
+
+static int seed_domain_user_info(const char *name,
+                                 const char *domain_name,
+                                 struct sysdb_ctx *sysdb,
+                                 bool *is_cached)
+{
+    TALLOC_CTX *tmp_ctx = NULL;
+    char *fq_name = NULL;
+    struct passwd *passwd = NULL;
+    struct ldb_result *res = NULL;
+    int ret = EOK;
+
+    tmp_ctx = talloc_new(NULL);
+    if (tmp_ctx == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    fq_name = talloc_asprintf(tmp_ctx, "%s@%s", name, domain_name);
+    if (fq_name == NULL) {
+        ret = ENOMEM;
+        goto done;
+    }
+
+    errno = 0;
+    passwd = getpwnam(fq_name);
+    if (passwd == NULL) {
+        ret = errno;
+        DEBUG(SSSDBG_MINOR_FAILURE, ("getpwnam failed [%d] [%s]\n",
+                                     ret, strerror(ret)));
+        goto done;
+    }
+
+    /* look for user in cache */
+    ret = sysdb_getpwnam(tmp_ctx, sysdb, name, &res);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE,
+              ("Couldn't lookup user (%s) in the cache\n", name));
+        goto done;
+    }
+
+    if (res->count == 0) {
+        DEBUG(SSSDBG_TRACE_INTERNAL,
+              ("User (%s) wasn't found in the cache\n", name));
+        *is_cached = false;
+        ret = ENOENT;
+        goto done;
+    } else if (res->count > 1) {
+        DEBUG(SSSDBG_CRIT_FAILURE,
+              ("Multiple user (%s) entries were found in the cache\n", name));
+        ret = EINVAL;
+        goto done;
+    } else {
+        DEBUG(SSSDBG_TRACE_INTERNAL, ("User found in cache\n"));
+        *is_cached = true;
+
+        errno = 0;
+        ret = initgroups(fq_name, passwd->pw_gid);
+        if (ret != EOK) {
+            ret = errno;
+            DEBUG(SSSDBG_MINOR_FAILURE, ("initgroups failed [%d] [%s]\n",
+                                         ret, strerror(ret)));
+            goto done;
+        }
+    }
+
+done:
+    if (ret == ENOMEM) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to allocate user information\n"));
+    }
+    talloc_zfree(tmp_ctx);
+    return ret;
+}
+
+static int seed_cache_user(struct seed_ctx *sctx)
+{
+    bool in_transaction = false;
+    int ret = EOK;
+
+    ret = sysdb_transaction_start(sctx->sysdb);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("sysdb transaction start failure\n"));
+        goto done;
+    }
+
+    in_transaction = true;
+
+    if (sctx->user_cached == false) {
+        ret = sysdb_add_user(sctx->sysdb, sctx->uctx->name,
+                             sctx->uctx->uid, sctx->uctx->gid,
+                             sctx->uctx->gecos, sctx->uctx->home,
+                             sctx->uctx->shell, NULL, 0, 0);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_OP_FAILURE,
+                  ("Failed to add user to the cache. (%d)[%s]\n",
+                   ret, strerror(ret)));
+            ERROR("Failed to create user cache entry\n");
+            goto done;
+        }
+    }
+
+    ret = sysdb_cache_password(sctx->sysdb, sctx->uctx->name,
+                               sctx->uctx->password);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Failed to cache password. (%d)[%s]\n",
+                                  ret, strerror(ret)));
+        ERROR("Failed to cache password\n");
+        goto done;
+    }
+
+    ret = sysdb_transaction_commit(sctx->sysdb);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("sysdb transaction commit failure\n"));
+        goto done;
+    }
+
+    in_transaction = false;
+
+done:
+    if (in_transaction == true) {
+        ret = sysdb_transaction_cancel(sctx->sysdb);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_OP_FAILURE, ("Failed to cancel transaction\n"));
+        }
+    }
+
+    return ret;
+}
+
+int main(int argc, const char **argv)
+{
+    struct seed_ctx *sctx = NULL;
+    struct user_ctx *input_uctx = NULL;
+    int ret = EOK;
+
+    /* initialize seed context and parse options */
+    ret = seed_init(sctx, argc, argv, &sctx);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_OP_FAILURE,("Seed init failed [%d][%d]\n",
+                                 ret, strerror(ret)));
+        goto done;
+    }
+
+    /* set up confdb,sysdb and domain */
+    ret = seed_init_db(sctx, sctx->uctx->domain_name, &sctx->confdb,
+                       &sctx->sysdb);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to initialize db and domain\n"));
+        goto done;
+    }
+
+    /* get user info from domain */
+    ret = seed_domain_user_info(sctx->uctx->name, sctx->uctx->domain_name,
+                                sctx->sysdb, &sctx->user_cached);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_OP_FAILURE, ("Failed lookup of user [%s] in domain [%s]\n",
+                                  sctx->uctx->name, sctx->uctx->domain_name));
+    }
+
+    /* interactive mode to fill in user information */
+    if (sctx->interact == true) {
+        if (sctx->user_cached == true) {
+            ERROR(_("User entry already exists in the cache.\n"));
+            ret = EEXIST;
+            goto done;
+        } else {
+            ret = seed_interactive_input(sctx, sctx->uctx, &input_uctx);
+            if (ret != EOK) {
+                DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to get seed input.\n"));
+                ret = EINVAL;
+                goto done;
+            }
+            talloc_zfree(sctx->uctx);
+            sctx->uctx = input_uctx;
+        }
+    }
+
+    if (sctx->user_cached == false) {
+        if (sctx->uctx->uid == 0 || sctx->uctx->gid == 0) {
+            /* require username, UID, and GID to continue */
+            DEBUG(SSSDBG_MINOR_FAILURE, ("Not enough information provided\n"));
+            ERROR("UID and primary GID not provided.\n");
+            ret = EINVAL;
+            goto done;
+        }
+    }
+
+    /* password input */
+    if (sctx->password_method == PASS_FILE) {
+        ret = seed_password_input_file(sctx->uctx, sctx->password_file,
+                                       &sctx->uctx->password);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_CRIT_FAILURE, ("Password input failure\n"));
+            goto done;
+        }
+    } else {
+        ret = seed_password_input_prompt(sctx->uctx, &sctx->uctx->password);
+        if (ret != EOK) {
+            DEBUG(SSSDBG_CRIT_FAILURE, ("Password input failure\n"));
+            goto done;
+        }
+    }
+
+    /* Add user info and password to sysdb cache */
+    ret = seed_cache_user(sctx);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_MINOR_FAILURE, ("Failed to modify cache.\n"));
+        goto done;
+    } else {
+        if (sctx->user_cached == false) {
+            printf(_("User cache entry created for %1$s\n"), sctx->uctx->name);
+        }
+        printf(_("Temporary password added to cache entry for %1$s\n"),
+                 sctx->uctx->name);
+    }
+
+done:
+    talloc_zfree(sctx);
+    if (ret != EOK) {
+        DEBUG(SSSDBG_TRACE_INTERNAL, ("Exit error: [%d] [%s]\n",
+                                      ret, strerror(ret)));
+        ret = EXIT_FAILURE;
+    } else {
+        ret = EXIT_SUCCESS;
+    }
+    exit(ret);
+}