From c5b0cee2976682b4fc1aeb02636cc9f2c6dbc2a5 Mon Sep 17 00:00:00 2001
From: Sumit Bose <sbose@redhat.com>
Date: Mon, 14 Jun 2021 07:54:01 +0200
Subject: [PATCH 1/2] Add setattr option
With the new option common LDAP attributes can be set.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1690920
---
doc/adcli.xml | 34 +++++++++
library/adenroll.c | 169 ++++++++++++++++++++++++++++++++++++++++++++-
library/adenroll.h | 4 ++
tools/computer.c | 10 +++
4 files changed, 216 insertions(+), 1 deletion(-)
diff --git a/doc/adcli.xml b/doc/adcli.xml
index 6c36297..8383aa7 100644
--- a/doc/adcli.xml
+++ b/doc/adcli.xml
@@ -374,6 +374,23 @@ Password for Administrator:
service should be accessible with a different host
name as well.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>--setattr=<parameter>name=value</parameter></option></term>
+ <listitem><para>Add the LDAP attribute
+ <option><parameter>name</parameter></option> with the
+ given <option><parameter>value</parameter></option> to
+ the new LDAP host object.
+ This option can be used multiple times to add multiple
+ different attributes. Multi-value attributes are
+ currently not supported.</para>
+ <para>Please note that the account used to join the
+ domain must have the required privileges to add the
+ given attributes. Some attributes might have
+ constraints with respect to syntax and allowed values
+ which must be met as well. Attributes managed by other
+ adcli options cannot be set with this option.</para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><option>--show-details</option></term>
<listitem><para>After a successful join print out information
@@ -543,6 +560,23 @@ $ adcli update --login-ccache=/tmp/krbcc_123
<listitem><para>Remove a service principal name from
the keytab and the AD host object.</para></listitem>
</varlistentry>
+ <varlistentry>
+ <term><option>--setattr=<parameter>name=value</parameter></option></term>
+ <listitem><para>Add the LDAP attribute
+ <option><parameter>name</parameter></option> with the
+ given <option><parameter>value</parameter></option> to
+ the LDAP host object.
+ This option can be used multiple times to add multiple
+ different attributes. Multi-value attributes are
+ currently not supported.</para>
+ <para>Please note that the account used to update the
+ host object must have the required privileges to modify
+ the given attributes. Some attributes might have
+ constraints with respect to syntax and allowed values
+ which must be met as well. Attributes managed by other
+ adcli options cannot be set with this option.</para>
+ </listitem>
+ </varlistentry>
<varlistentry>
<term><option>--show-details</option></term>
<listitem><para>After a successful join print out information
diff --git a/library/adenroll.c b/library/adenroll.c
index 0b1c066..dd51567 100644
--- a/library/adenroll.c
+++ b/library/adenroll.c
@@ -150,4 +150,5 @@ struct _adcli_enroll {
char *description;
+ char **setattr;
};
static const char *
@@ -795,6 +796,56 @@ calculate_enctypes (adcli_enroll *enroll, char **enctype)
return ADCLI_SUCCESS;
}
+static LDAPMod **
+get_mods_for_attrs (adcli_enroll *enroll, int mod_op)
+{
+ size_t len;
+ size_t c;
+ char *end;
+ LDAPMod **mods = NULL;
+
+ len = _adcli_strv_len (enroll->setattr);
+ if (len == 0) {
+ return NULL;
+ }
+
+ mods = calloc (len + 1, sizeof (LDAPMod *));
+ return_val_if_fail (mods != NULL, NULL);
+
+ for (c = 0; c < len; c++) {
+ end = strchr (enroll->setattr[c], '=');
+ if (end == NULL) {
+ ldap_mods_free (mods, 1);
+ return NULL;
+ }
+
+ mods[c] = calloc (1, sizeof (LDAPMod));
+ if (mods[c] == NULL) {
+ ldap_mods_free (mods, 1);
+ return NULL;
+ }
+
+ mods[c]->mod_op = mod_op;
+ *end = '\0';
+ mods[c]->mod_type = strdup (enroll->setattr[c]);
+ *end = '=';
+ mods[c]->mod_values = calloc (2, sizeof (char *));
+ if (mods[c]->mod_type == NULL || mods[c]->mod_values == NULL) {
+ ldap_mods_free (mods, 1);
+ return NULL;
+ }
+
+ mods[c]->mod_values[0] = strdup (end + 1);
+ if (mods[c]->mod_values[0] == NULL) {
+ ldap_mods_free (mods, 1);
+ return NULL;
+ }
+ }
+
+ return mods;
+}
+
+
static adcli_result
create_computer_account (adcli_enroll *enroll,
LDAP *ldap)
@@ -828,6 +879,7 @@ create_computer_account (adcli_enroll *enroll,
size_t m;
uint32_t uac = UAC_WORKSTATION_TRUST_ACCOUNT | UAC_DONT_EXPIRE_PASSWORD ;
char *uac_str = NULL;
+ LDAPMod **extra_mods = NULL;
LDAPMod *all_mods[] = {
&objectClass,
@@ -845,7 +897,7 @@ create_computer_account (adcli_enroll *enroll,
};
size_t mods_count = sizeof (all_mods) / sizeof (LDAPMod *);
- LDAPMod *mods[mods_count];
+ LDAPMod **mods;
if (adcli_enroll_get_trusted_for_delegation (enroll)) {
uac |= UAC_TRUSTED_FOR_DELEGATION;
@@ -868,6 +920,17 @@ create_computer_account (adcli_enroll *enroll,
}
vals_supportedEncryptionTypes[0] = val;
+ if (enroll->setattr != NULL) {
+ extra_mods = get_mods_for_attrs (enroll, LDAP_MOD_ADD);
+ if (extra_mods == NULL) {
+ _adcli_err ("Failed to add setattr attributes, "
+ "just using defaults");
+ }
+ }
+
+ mods = calloc (mods_count + seq_count (extra_mods) + 1, sizeof (LDAPMod *));
+ return_val_if_fail (mods != NULL, ADCLI_ERR_UNEXPECTED);
+
m = 0;
for (c = 0; c < mods_count - 1; c++) {
/* Skip empty LDAP sttributes */
@@ -875,9 +938,15 @@ create_computer_account (adcli_enroll *enroll,
mods[m++] = all_mods[c];
}
}
+
+ for (c = 0; c < seq_count (extra_mods); c++) {
+ mods[m++] = extra_mods[c];
+ }
mods[m] = NULL;
ret = ldap_add_ext_s (ldap, enroll->computer_dn, mods, NULL, NULL);
+ ldap_mods_free (extra_mods, 1);
+ free (mods);
free (uac_str);
free (val);
@@ -1698,6 +1767,14 @@ update_computer_account (adcli_enroll *enroll)
res |= update_computer_attribute (enroll, ldap, mods);
}
+ if (res == ADCLI_SUCCESS && enroll->setattr != NULL) {
+ LDAPMod **mods = get_mods_for_attrs (enroll, LDAP_MOD_REPLACE);
+ if (mods != NULL) {
+ res |= update_computer_attribute (enroll, ldap, mods);
+ ldap_mods_free (mods, 1);
+ }
+ }
+
if (res != 0)
_adcli_info ("Updated existing computer account: %s", enroll->computer_dn);
}
@@ -2751,6 +2828,7 @@ enroll_free (adcli_enroll *enroll)
free (enroll->user_principal);
_adcli_strv_free (enroll->service_names);
_adcli_strv_free (enroll->service_principals);
+ _adcli_strv_free (enroll->setattr);
_adcli_password_free (enroll->computer_password);
adcli_enroll_set_keytab_name (enroll, NULL);
@@ -3332,6 +3410,72 @@ adcli_enroll_add_service_principal_to_remove (adcli_enroll *enroll,
return_if_fail (enroll->service_principals_to_remove != NULL);
}
+static int comp_attr_name (const char *s1, const char *s2)
+{
+ size_t c = 0;
+
+ /* empty strings cannot contain an attribute name */
+ if (s1 == NULL || s2 == NULL || *s1 == '\0' || *s2 == '\0') {
+ return 1;
+ }
+
+ for (c = 0 ; s1[c] != '\0' && s2[c] != '\0'; c++) {
+ if (s1[c] == '=' && s2[c] == '=') {
+ return 0;
+ } else if (tolower (s1[c]) != tolower (s2[c])) {
+ return 1;
+ }
+ }
+
+ return 1;
+}
+
+adcli_result
+adcli_enroll_add_setattr (adcli_enroll *enroll, const char *value)
+{
+ char *delim;
+
+ return_val_if_fail (enroll != NULL, ADCLI_ERR_CONFIG);
+ return_val_if_fail (value != NULL, ADCLI_ERR_CONFIG);
+
+ delim = strchr (value, '=');
+ if (delim == NULL) {
+ _adcli_err ("Missing '=' in setattr option [%s]", value);
+ return ADCLI_ERR_CONFIG;
+ }
+
+ if (*(delim + 1) == '\0') {
+ _adcli_err ("Missing value in setattr option [%s]", value);
+ return ADCLI_ERR_CONFIG;
+ }
+
+ *delim = '\0';
+ if (_adcli_strv_has_ex (default_ad_ldap_attrs, value, strcasecmp) == 1) {
+ _adcli_err ("Attribute [%s] cannot be set with setattr", value);
+ return ADCLI_ERR_CONFIG;
+ }
+ *delim = '=';
+
+ if (_adcli_strv_has_ex (enroll->setattr, value, comp_attr_name) == 1) {
+ _adcli_err ("Attribute [%s] already set", value);
+ return ADCLI_ERR_CONFIG;
+ }
+
+ enroll->setattr = _adcli_strv_add (enroll->setattr, strdup (value),
+ NULL);
+ return_val_if_fail (enroll->setattr != NULL, ADCLI_ERR_CONFIG);
+
+ return ADCLI_SUCCESS;
+}
+
+const char **
+adcli_enroll_get_setattr (adcli_enroll *enroll)
+{
+ return_val_if_fail (enroll != NULL, NULL);
+ return (const char **) enroll->setattr;
+}
+
+
#ifdef ADENROLL_TESTS
#include "test.h"
@@ -3401,12 +3545,35 @@ test_adcli_enroll_get_permitted_keytab_enctypes (void)
adcli_conn_unref (conn);
}
+static void
+test_comp_attr_name (void)
+{
+ assert_num_eq (1, comp_attr_name (NULL ,NULL));
+ assert_num_eq (1, comp_attr_name ("" ,NULL));
+ assert_num_eq (1, comp_attr_name ("" ,""));
+ assert_num_eq (1, comp_attr_name (NULL ,""));
+ assert_num_eq (1, comp_attr_name (NULL ,"abc=xyz"));
+ assert_num_eq (1, comp_attr_name ("" ,"abc=xyz"));
+ assert_num_eq (1, comp_attr_name ("abc=xyz", NULL));
+ assert_num_eq (1, comp_attr_name ("abc=xyz", ""));
+ assert_num_eq (1, comp_attr_name ("abc=xyz", "ab=xyz"));
+ assert_num_eq (1, comp_attr_name ("ab=xyz", "abc=xyz"));
+ assert_num_eq (1, comp_attr_name ("abcxyz", "abc=xyz"));
+ assert_num_eq (1, comp_attr_name ("abc=xyz", "abcxyz"));
+ assert_num_eq (1, comp_attr_name ("abc=xyz", "a"));
+ assert_num_eq (1, comp_attr_name ("a", "abc=xyz"));
+
+ assert_num_eq (0, comp_attr_name ("abc=xyz", "abc=xyz"));
+ assert_num_eq (0, comp_attr_name ("abc=xyz", "abc=123"));
+}
+
int
main (int argc,
char *argv[])
{
test_func (test_adcli_enroll_get_permitted_keytab_enctypes,
"/attrs/adcli_enroll_get_permitted_keytab_enctypes");
+ test_func (test_comp_attr_name, "/attrs/comp_attr_name");
return test_run (argc, argv);
}
diff --git a/library/adenroll.h b/library/adenroll.h
index 34dc683..862bb60 100644
--- a/library/adenroll.h
+++ b/library/adenroll.h
@@ -138,6 +138,10 @@ const char * adcli_enroll_get_desciption (adcli_enroll *enroll);
void adcli_enroll_set_description (adcli_enroll *enroll,
const char *value);
+const char ** adcli_enroll_get_setattr (adcli_enroll *enroll);
+adcli_result adcli_enroll_add_setattr (adcli_enroll *enroll,
+ const char *value);
+
bool adcli_enroll_get_is_service (adcli_enroll *enroll);
void adcli_enroll_set_is_service (adcli_enroll *enroll,
bool value);
diff --git a/tools/computer.c b/tools/computer.c
index 16a1983..af38894 100644
--- a/tools/computer.c
+++ b/tools/computer.c
@@ -114,6 +114,7 @@ typedef enum {
opt_add_service_principal,
opt_remove_service_principal,
opt_description,
+ opt_setattr,
opt_use_ldaps,
} Option;
@@ -152,6 +153,7 @@ static adcli_tool_desc common_usages[] = {
{ opt_add_service_principal, "add the given service principal to the account\n" },
{ opt_remove_service_principal, "remove the given service principal from the account\n" },
{ opt_description, "add a description to the account\n" },
+ { opt_setattr, "add an attribute with a value\n" },
{ opt_no_password, "don't prompt for or read a password" },
{ opt_prompt_password, "prompt for a password if necessary" },
{ opt_stdin_password, "read a password from stdin (until EOF) if\n"
@@ -333,6 +335,12 @@ parse_option (Option opt,
case opt_description:
adcli_enroll_set_description (enroll, optarg);
return ADCLI_SUCCESS;
+ case opt_setattr:
+ ret = adcli_enroll_add_setattr (enroll, optarg);
+ if (ret != ADCLI_SUCCESS) {
+ warnx ("parsing setattr option failed");
+ }
+ return ret;
case opt_use_ldaps:
adcli_conn_set_use_ldaps (conn, true);
return ADCLI_SUCCESS;
@@ -401,6 +409,7 @@ adcli_tool_computer_join (adcli_conn *conn,
{ "os-version", required_argument, NULL, opt_os_version },
{ "os-service-pack", optional_argument, NULL, opt_os_service_pack },
{ "description", optional_argument, NULL, opt_description },
+ { "setattr", required_argument, NULL, opt_setattr },
{ "user-principal", optional_argument, NULL, opt_user_principal },
{ "trusted-for-delegation", required_argument, NULL, opt_trusted_for_delegation },
{ "dont-expire-password", required_argument, NULL, opt_dont_expire_password },
@@ -524,6 +533,7 @@ adcli_tool_computer_update (adcli_conn *conn,
{ "os-version", required_argument, NULL, opt_os_version },
{ "os-service-pack", optional_argument, NULL, opt_os_service_pack },
{ "description", optional_argument, NULL, opt_description },
+ { "setattr", required_argument, NULL, opt_setattr },
{ "user-principal", optional_argument, NULL, opt_user_principal },
{ "computer-password-lifetime", optional_argument, NULL, opt_computer_password_lifetime },
{ "trusted-for-delegation", required_argument, NULL, opt_trusted_for_delegation },
--
2.31.1