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Factor out fetching of password and move it to the code that uses

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it. This code would not hurt by factoring out some more code...


git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@21181 ec53bebd-3082-4978-b11e-865c3cabbd6b
This commit is contained in:
Love Hörnquist Åstrand
2007-06-19 20:52:29 +00:00
parent 5c4742d6d6
commit 4b3ea33a6a
1 changed files with 51 additions and 26 deletions
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77
kdc/digest.c
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@@ -156,6 +156,44 @@ static const unsigned char ms_rfc3079_magic1[27] = {
0x61, 0x73, 0x74, 0x65, 0x72, 0x20, 0x4b, 0x65, 0x79
};
/*
*
*/
static krb5_error_code
get_password_entry(krb5_context context,
krb5_kdc_configuration *config,
const char *username,
char **password)
{
krb5_principal clientprincipal;
krb5_error_code ret;
hdb_entry_ex *user;
HDB *db;
/* get username */
ret = krb5_parse_name(context, username, &clientprincipal);
if (ret)
return ret;
ret = _kdc_db_fetch(context, config, clientprincipal,
HDB_F_GET_CLIENT, &db, &user);
krb5_free_principal(context, clientprincipal);
if (ret)
return ret;
ret = hdb_entry_get_password(context, db, &user->entry, password);
if (ret || password == NULL) {
if (ret == 0) {
ret = EINVAL;
krb5_set_error_string(context, "password missing");
}
memset(user, 0, sizeof(*user));
}
_kdc_free_ent (context, user);
return ret;
}
/*
*
*/
@@ -461,9 +499,6 @@ _kdc_do_digest(krb5_context context,
break;
}
case choice_DigestReqInner_digestRequest: {
krb5_principal clientprincipal;
HDB *db;
sp = krb5_storage_emem();
if (sp == NULL) {
ret = ENOMEM;
@@ -571,29 +606,6 @@ _kdc_do_digest(krb5_context context,
}
}
/* get username */
ret = krb5_parse_name(context,
ireq.u.digestRequest.username,
&clientprincipal);
if (ret)
goto out;
ret = _kdc_db_fetch(context, config, clientprincipal,
HDB_F_GET_CLIENT, &db, &user);
krb5_free_principal(context, clientprincipal);
if (ret)
goto out;
ret = hdb_entry_get_password(context, db, &user->entry, &password);
if (ret || password == NULL) {
if (ret == 0) {
ret = EINVAL;
krb5_set_error_string(context, "password missing");
}
goto out;
}
if (strcasecmp(ireq.u.digestRequest.type, "CHAP") == 0) {
MD5_CTX ctx;
unsigned char md[MD5_DIGEST_LENGTH];
@@ -618,6 +630,12 @@ _kdc_do_digest(krb5_context context,
goto out;
}
ret = get_password_entry(context, config,
ireq.u.digestRequest.username,
&password);
if (ret)
goto out;
MD5_Init(&ctx);
MD5_Update(&ctx, &id, 1);
MD5_Update(&ctx, password, strlen(password));
@@ -664,6 +682,12 @@ _kdc_do_digest(krb5_context context,
if (ireq.u.digestRequest.realm == NULL)
goto out;
ret = get_password_entry(context, config,
ireq.u.digestRequest.username,
&password);
if (ret)
goto out;
MD5_Init(&ctx);
MD5_Update(&ctx, ireq.u.digestRequest.username,
strlen(ireq.u.digestRequest.username));
@@ -758,6 +782,7 @@ _kdc_do_digest(krb5_context context,
} else if (strcasecmp(ireq.u.digestRequest.type, "MS-CHAP-V2") == 0) {
unsigned char md[SHA_DIGEST_LENGTH], challange[SHA_DIGEST_LENGTH];
krb5_principal clientprincipal = NULL;
char *mdx;
const char *username;
struct ntlm_buf answer;