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remember the saltings we used in preauth in case the kdc doesn't sent

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it back with the ticket.
This commit is contained in:
Love Hornquist Astrand
2009-11-22 09:32:23 -08:00
parent 2c14216733
commit d6f5c959d6
1 changed files with 37 additions and 21 deletions
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58
lib/krb5/init_creds_pw.c
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@@ -67,8 +67,25 @@ typedef struct krb5_get_init_creds_ctx {
krb5_prompter_fct prompter;
void *prompter_data;
struct pa_info_data *ppaid;
} krb5_get_init_creds_ctx;
struct pa_info_data {
krb5_enctype etype;
krb5_salt salt;
krb5_data *s2kparams;
};
static void
free_paid(krb5_context context, struct pa_info_data *ppaid)
{
krb5_free_salt(context, ppaid->salt);
if (ppaid->s2kparams)
krb5_free_data(context, ppaid->s2kparams);
}
static krb5_error_code
default_s2k_func(krb5_context context, krb5_enctype type,
krb5_const_pointer keyseed,
@@ -116,6 +133,10 @@ free_init_creds_ctx(krb5_context context, krb5_init_creds_context ctx)
free_EncKDCRepPart(&ctx->enc_part);
free_KRB_ERROR(&ctx->error);
free_AS_REQ(&ctx->as_req);
if (ctx->ppaid) {
free_paid(context, ctx->ppaid);
free(ctx->ppaid);
}
memset(ctx, 0, sizeof(*ctx));
}
@@ -677,20 +698,6 @@ init_as_req (krb5_context context,
return ret;
}
struct pa_info_data {
krb5_enctype etype;
krb5_salt salt;
krb5_data *s2kparams;
};
static void
free_paid(krb5_context context, struct pa_info_data *ppaid)
{
krb5_free_salt(context, ppaid->salt);
if (ppaid->s2kparams)
krb5_free_data(context, ppaid->s2kparams);
}
static krb5_error_code
set_paid(struct pa_info_data *paid, krb5_context context,
@@ -1141,16 +1148,22 @@ process_pa_data_to_md(krb5_context context,
return ret;
} else if (in_md->len != 0) {
struct pa_info_data paid, *ppaid;
struct pa_info_data *paid, *ppaid;
memset(&paid, 0, sizeof(paid));
paid = calloc(1, sizeof(*paid));
paid.etype = ENCTYPE_NULL;
ppaid = process_pa_info(context, creds->client, a, &paid, in_md);
paid->etype = ENCTYPE_NULL;
ppaid = process_pa_info(context, creds->client, a, paid, in_md);
pa_data_to_md_ts_enc(context, a, creds->client, ctx, ppaid, *out_md);
if (ppaid)
free_paid(context, ppaid);
if (ppaid) {
if (ctx->ppaid) {
free_paid(context, ctx->ppaid);
free(ctx->ppaid);
}
ctx->ppaid = ppaid;
} else
free(paid);
}
pa_data_add_pac_request(context, ctx, *out_md);
@@ -1186,12 +1199,15 @@ process_pa_data_to_key(krb5_context context,
ppaid = process_pa_info(context, creds->client, a, &paid,
rep->padata);
}
if (ppaid == NULL)
ppaid = ctx->ppaid;
if (ppaid == NULL) {
ret = krb5_get_pw_salt (context, creds->client, &paid.salt);
if (ret)
return ret;
paid.etype = etype;
paid.s2kparams = NULL;
ppaid = &paid;
}
pa = NULL;
@@ -1226,7 +1242,7 @@ process_pa_data_to_key(krb5_context context,
#endif
} else if (ctx->keyseed)
ret = pa_data_to_key_plain(context, creds->client, ctx,
paid.salt, paid.s2kparams, etype, key);
ppaid->salt, ppaid->s2kparams, etype, key);
else {
ret = EINVAL;
krb5_set_error_message(context, ret, N_("No usable pa data type", ""));