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gssapi: import bugfixes from Apple Heimdal-520

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* check `ctx->gc_ctx` in `gss_inquire_context()`
* check `gm_inquire_cred != NULL` in `gss_inquire_context()`
* check `min_lifetime` in `gss_inquire_cred()`
* check `gm_inquire_cred_by_mech != NULL` in `gss_inquire_cred_by_mech()`
* set mech error in `gss_inquire_cred_by_oid()`
* don't clobber error in `gss_inquire_cred_by_oid()`
* don't pass NULL minor_status to `gss_krb5_free_lucid_sec_context()`
* allow NULL ccache in `gss_krb5_ccache_name()`
* NULL names OK in `_gss_find_mn()`
* allow empty names in `gss_import_name()` (removes `input_name_buffer` length
  check). to support ANONYMOUS.  in `gss_import_name()`, ignore mech name
  import failure as long as it's possible to import the name in some other
  mechanism
* better argument validation in `gss_export_sec_context()`
* in `gss_compare_name()`, check `mn2 != NULL`
* check `gss_add_oid_set_member()` return code in `gss_indicate_mechs()`
* in `gss_destroy_cred()`, set output cred handle to `GSS_C_NO_CREDENTIAL`
* cast size_t to OM_uint32 where required
This commit is contained in:
Luke Howard
2019-01-03 09:06:46 +11:00
parent 29fe69f95f
commit ad426d0385
13 changed files with 98 additions and 26 deletions
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18
lib/gssapi/mech/gss_export_sec_context.c
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@@ -38,7 +38,23 @@ gss_export_sec_context(OM_uint32 *minor_status,
gssapi_mech_interface m = ctx->gc_mech;
gss_buffer_desc buf;
_mg_buffer_zero(interprocess_token);
*minor_status = 0;
if (interprocess_token)
_mg_buffer_zero(interprocess_token);
else
return GSS_S_CALL_INACCESSIBLE_READ;
if (context_handle == NULL)
return GSS_S_NO_CONTEXT;
ctx = (struct _gss_context *) *context_handle;
if (ctx == NULL || ctx->gc_ctx == NULL) {
*minor_status = 0;
return GSS_S_NO_CONTEXT;
}
m = ctx->gc_mech;
major_status = m->gm_export_sec_context(minor_status,
&ctx->gc_ctx, &buf);