diff options
Diffstat (limited to 'lib/gssapi/mech/context.c')
| -rw-r--r-- | lib/gssapi/mech/context.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/lib/gssapi/mech/context.c b/lib/gssapi/mech/context.c new file mode 100644 index 000000000000..5ea0ac466b76 --- /dev/null +++ b/lib/gssapi/mech/context.c @@ -0,0 +1,163 @@ +#include "mech_locl.h" +#include "heim_threads.h" + +struct mg_thread_ctx { + gss_OID mech; + OM_uint32 maj_stat; + OM_uint32 min_stat; + gss_buffer_desc maj_error; + gss_buffer_desc min_error; +}; + +static HEIMDAL_MUTEX context_mutex = HEIMDAL_MUTEX_INITIALIZER; +static int created_key; +static HEIMDAL_thread_key context_key; + + +static void +destroy_context(void *ptr) +{ + struct mg_thread_ctx *mg = ptr; + OM_uint32 junk; + + if (mg == NULL) + return; + + gss_release_buffer(&junk, &mg->maj_error); + gss_release_buffer(&junk, &mg->min_error); + free(mg); +} + + +static struct mg_thread_ctx * +_gss_mechglue_thread(void) +{ + struct mg_thread_ctx *ctx; + int ret = 0; + + HEIMDAL_MUTEX_lock(&context_mutex); + + if (!created_key) { + HEIMDAL_key_create(&context_key, destroy_context, ret); + if (ret) { + HEIMDAL_MUTEX_unlock(&context_mutex); + return NULL; + } + created_key = 1; + } + HEIMDAL_MUTEX_unlock(&context_mutex); + + ctx = HEIMDAL_getspecific(context_key); + if (ctx == NULL) { + + ctx = calloc(1, sizeof(*ctx)); + if (ctx == NULL) + return NULL; + HEIMDAL_setspecific(context_key, ctx, ret); + if (ret) { + free(ctx); + return NULL; + } + } + return ctx; +} + +OM_uint32 +_gss_mg_get_error(const gss_OID mech, OM_uint32 type, + OM_uint32 value, gss_buffer_t string) +{ + struct mg_thread_ctx *mg; + + mg = _gss_mechglue_thread(); + if (mg == NULL) + return GSS_S_BAD_STATUS; + +#if 0 + /* + * We cant check the mech here since a pseudo-mech might have + * called an lower layer and then the mech info is all broken + */ + if (mech != NULL && gss_oid_equal(mg->mech, mech) == 0) + return GSS_S_BAD_STATUS; +#endif + + switch (type) { + case GSS_C_GSS_CODE: { + if (value != mg->maj_stat || mg->maj_error.length == 0) + break; + string->value = malloc(mg->maj_error.length + 1); + string->length = mg->maj_error.length; + memcpy(string->value, mg->maj_error.value, mg->maj_error.length); + ((char *) string->value)[string->length] = '\0'; + return GSS_S_COMPLETE; + } + case GSS_C_MECH_CODE: { + if (value != mg->min_stat || mg->min_error.length == 0) + break; + string->value = malloc(mg->min_error.length + 1); + string->length = mg->min_error.length; + memcpy(string->value, mg->min_error.value, mg->min_error.length); + ((char *) string->value)[string->length] = '\0'; + return GSS_S_COMPLETE; + } + } + string->value = NULL; + string->length = 0; + return GSS_S_BAD_STATUS; +} + +void +_gss_mg_error(gssapi_mech_interface m, OM_uint32 maj, OM_uint32 min) +{ + OM_uint32 major_status, minor_status; + OM_uint32 message_content; + struct mg_thread_ctx *mg; + + /* + * Mechs without gss_display_status() does + * gss_mg_collect_error() by themself. + */ + if (m->gm_display_status == NULL) + return ; + + mg = _gss_mechglue_thread(); + if (mg == NULL) + return; + + gss_release_buffer(&minor_status, &mg->maj_error); + gss_release_buffer(&minor_status, &mg->min_error); + + mg->mech = &m->gm_mech_oid; + mg->maj_stat = maj; + mg->min_stat = min; + + major_status = m->gm_display_status(&minor_status, + maj, + GSS_C_GSS_CODE, + &m->gm_mech_oid, + &message_content, + &mg->maj_error); + if (GSS_ERROR(major_status)) { + mg->maj_error.value = NULL; + mg->maj_error.length = 0; + } + major_status = m->gm_display_status(&minor_status, + min, + GSS_C_MECH_CODE, + &m->gm_mech_oid, + &message_content, + &mg->min_error); + if (GSS_ERROR(major_status)) { + mg->min_error.value = NULL; + mg->min_error.length = 0; + } +} + +void +gss_mg_collect_error(gss_OID mech, OM_uint32 maj, OM_uint32 min) +{ + gssapi_mech_interface m = __gss_get_mechanism(mech); + if (m == NULL) + return; + _gss_mg_error(m, maj, min); +} |