OM_uint32 GSSAPI_CALLCONV _gsskrb5_delete_sec_context(OM_uint32 * minor_status, gss_ctx_id_t * context_handle, gss_buffer_t output_token) { krb5_context context; gsskrb5_ctx ctx; GSSAPI_KRB5_INIT (&context); *minor_status = 0; if (output_token) { output_token->length = 0; output_token->value = NULL; } if (*context_handle == GSS_C_NO_CONTEXT) return GSS_S_COMPLETE; ctx = (gsskrb5_ctx) *context_handle; *context_handle = GSS_C_NO_CONTEXT; HEIMDAL_MUTEX_lock(&ctx->ctx_id_mutex); krb5_auth_con_free (context, ctx->auth_context); krb5_auth_con_free (context, ctx->deleg_auth_context); if (ctx->kcred) krb5_free_creds(context, ctx->kcred); if(ctx->source) krb5_free_principal (context, ctx->source); if(ctx->target) krb5_free_principal (context, ctx->target); if (ctx->ticket) krb5_free_ticket (context, ctx->ticket); if(ctx->order) _gssapi_msg_order_destroy(&ctx->order); if (ctx->service_keyblock) krb5_free_keyblock (context, ctx->service_keyblock); krb5_data_free(&ctx->fwd_data); if (ctx->crypto) krb5_crypto_destroy(context, ctx->crypto); HEIMDAL_MUTEX_unlock(&ctx->ctx_id_mutex); HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); memset(ctx, 0, sizeof(*ctx)); free (ctx); return GSS_S_COMPLETE; }
static int test_seq(int t, OM_uint32 flags, OM_uint32 start_seq, OM_uint32 *pattern, int pattern_len) { struct gss_msg_order *o; OM_uint32 maj_stat, min_stat; int i; maj_stat = _gssapi_msg_order_create(&min_stat, &o, flags, start_seq, 20, 0); if (maj_stat) err(1, "create: %d %d", maj_stat, min_stat); for (i = 0; i < pattern_len; i++) { maj_stat = _gssapi_msg_order_check(o, pattern[i]); if (maj_stat) return maj_stat; } _gssapi_msg_order_destroy(&o); return 0; }
OM_uint32 gss_import_sec_context ( OM_uint32 * minor_status, const gss_buffer_t interprocess_token, gss_ctx_id_t * context_handle ) { OM_uint32 ret = GSS_S_FAILURE; krb5_error_code kret; krb5_storage *sp; krb5_auth_context ac; krb5_address local, remote; krb5_address *localp, *remotep; krb5_data data; gss_buffer_desc buffer; krb5_keyblock keyblock; int32_t tmp; int32_t flags; OM_uint32 minor; int is_cfx = 0; GSSAPI_KRB5_INIT (); localp = remotep = NULL; sp = krb5_storage_from_mem (interprocess_token->value, interprocess_token->length); if (sp == NULL) { *minor_status = ENOMEM; return GSS_S_FAILURE; } *context_handle = malloc(sizeof(**context_handle)); if (*context_handle == NULL) { *minor_status = ENOMEM; krb5_storage_free (sp); return GSS_S_FAILURE; } memset (*context_handle, 0, sizeof(**context_handle)); HEIMDAL_MUTEX_init(&(*context_handle)->ctx_id_mutex); kret = krb5_auth_con_init (gssapi_krb5_context, &(*context_handle)->auth_context); if (kret) { gssapi_krb5_set_error_string (); *minor_status = kret; ret = GSS_S_FAILURE; goto failure; } /* flags */ *minor_status = 0; if (krb5_ret_int32 (sp, &flags) != 0) goto failure; /* retrieve the auth context */ ac = (*context_handle)->auth_context; krb5_ret_int32 (sp, &ac->flags); if (flags & SC_LOCAL_ADDRESS) { if (krb5_ret_address (sp, localp = &local) != 0) goto failure; } if (flags & SC_REMOTE_ADDRESS) { if (krb5_ret_address (sp, remotep = &remote) != 0) goto failure; } krb5_auth_con_setaddrs (gssapi_krb5_context, ac, localp, remotep); if (localp) krb5_free_address (gssapi_krb5_context, localp); if (remotep) krb5_free_address (gssapi_krb5_context, remotep); localp = remotep = NULL; if (krb5_ret_int16 (sp, &ac->local_port) != 0) goto failure; if (krb5_ret_int16 (sp, &ac->remote_port) != 0) goto failure; if (flags & SC_KEYBLOCK) { if (krb5_ret_keyblock (sp, &keyblock) != 0) goto failure; krb5_auth_con_setkey (gssapi_krb5_context, ac, &keyblock); krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock); } if (flags & SC_LOCAL_SUBKEY) { if (krb5_ret_keyblock (sp, &keyblock) != 0) goto failure; krb5_auth_con_setlocalsubkey (gssapi_krb5_context, ac, &keyblock); krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock); } if (flags & SC_REMOTE_SUBKEY) { if (krb5_ret_keyblock (sp, &keyblock) != 0) goto failure; krb5_auth_con_setremotesubkey (gssapi_krb5_context, ac, &keyblock); krb5_free_keyblock_contents (gssapi_krb5_context, &keyblock); } if (krb5_ret_int32 (sp, &ac->local_seqnumber)) goto failure; if (krb5_ret_int32 (sp, &ac->remote_seqnumber)) goto failure; if (krb5_ret_int32 (sp, &tmp) != 0) goto failure; ac->keytype = tmp; if (krb5_ret_int32 (sp, &tmp) != 0) goto failure; ac->cksumtype = tmp; /* names */ if (krb5_ret_data (sp, &data)) goto failure; buffer.value = data.data; buffer.length = data.length; ret = gss_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, &(*context_handle)->source); if (ret) { ret = gss_import_name (minor_status, &buffer, GSS_C_NO_OID, &(*context_handle)->source); if (ret) { krb5_data_free (&data); goto failure; } } krb5_data_free (&data); if (krb5_ret_data (sp, &data) != 0) goto failure; buffer.value = data.data; buffer.length = data.length; ret = gss_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, &(*context_handle)->target); if (ret) { ret = gss_import_name (minor_status, &buffer, GSS_C_NO_OID, &(*context_handle)->target); if (ret) { krb5_data_free (&data); goto failure; } } krb5_data_free (&data); if (krb5_ret_int32 (sp, &tmp)) goto failure; (*context_handle)->flags = tmp; if (krb5_ret_int32 (sp, &tmp)) goto failure; (*context_handle)->more_flags = tmp; if (krb5_ret_int32 (sp, &tmp) == 0) (*context_handle)->lifetime = tmp; else (*context_handle)->lifetime = GSS_C_INDEFINITE; gsskrb5_is_cfx(*context_handle, &is_cfx); ret = _gssapi_msg_order_create(minor_status, &(*context_handle)->order, _gssapi_msg_order_f((*context_handle)->flags), 0, 0, is_cfx); if (ret) goto failure; krb5_storage_free (sp); return GSS_S_COMPLETE; failure: krb5_auth_con_free (gssapi_krb5_context, (*context_handle)->auth_context); if ((*context_handle)->source != NULL) gss_release_name(&minor, &(*context_handle)->source); if ((*context_handle)->target != NULL) gss_release_name(&minor, &(*context_handle)->target); if (localp) krb5_free_address (gssapi_krb5_context, localp); if (remotep) krb5_free_address (gssapi_krb5_context, remotep); if((*context_handle)->order) _gssapi_msg_order_destroy(&(*context_handle)->order); HEIMDAL_MUTEX_destroy(&(*context_handle)->ctx_id_mutex); krb5_storage_free (sp); free (*context_handle); *context_handle = GSS_C_NO_CONTEXT; return ret; }
OM_uint32 GSSAPI_CALLCONV _gsskrb5_import_sec_context ( OM_uint32 * minor_status, const gss_buffer_t interprocess_token, gss_ctx_id_t * context_handle ) { OM_uint32 ret = GSS_S_FAILURE; krb5_context context; krb5_error_code kret; krb5_storage *sp; krb5_auth_context ac; krb5_address local, remote; krb5_address *localp, *remotep; krb5_data data; gss_buffer_desc buffer; krb5_keyblock keyblock; int32_t flags, tmp; gsskrb5_ctx ctx; gss_name_t name; GSSAPI_KRB5_INIT (&context); *context_handle = GSS_C_NO_CONTEXT; localp = remotep = NULL; sp = krb5_storage_from_mem (interprocess_token->value, interprocess_token->length); if (sp == NULL) { *minor_status = ENOMEM; return GSS_S_FAILURE; } ctx = calloc(1, sizeof(*ctx)); if (ctx == NULL) { *minor_status = ENOMEM; krb5_storage_free (sp); return GSS_S_FAILURE; } HEIMDAL_MUTEX_init(&ctx->ctx_id_mutex); kret = krb5_auth_con_init (context, &ctx->auth_context); if (kret) { *minor_status = kret; ret = GSS_S_FAILURE; goto failure; } /* flags */ *minor_status = 0; if (krb5_ret_int32 (sp, &flags) != 0) goto failure; /* retrieve the auth context */ ac = ctx->auth_context; if (krb5_ret_int32 (sp, &tmp) != 0) goto failure; ac->flags = tmp; if (flags & SC_LOCAL_ADDRESS) { if (krb5_ret_address (sp, localp = &local) != 0) goto failure; } if (flags & SC_REMOTE_ADDRESS) { if (krb5_ret_address (sp, remotep = &remote) != 0) goto failure; } krb5_auth_con_setaddrs (context, ac, localp, remotep); if (localp) krb5_free_address (context, localp); if (remotep) krb5_free_address (context, remotep); localp = remotep = NULL; if (krb5_ret_int16 (sp, &ac->local_port) != 0) goto failure; if (krb5_ret_int16 (sp, &ac->remote_port) != 0) goto failure; if (flags & SC_KEYBLOCK) { if (krb5_ret_keyblock (sp, &keyblock) != 0) goto failure; krb5_auth_con_setkey (context, ac, &keyblock); krb5_free_keyblock_contents (context, &keyblock); } if (flags & SC_LOCAL_SUBKEY) { if (krb5_ret_keyblock (sp, &keyblock) != 0) goto failure; krb5_auth_con_setlocalsubkey (context, ac, &keyblock); krb5_free_keyblock_contents (context, &keyblock); } if (flags & SC_REMOTE_SUBKEY) { if (krb5_ret_keyblock (sp, &keyblock) != 0) goto failure; krb5_auth_con_setremotesubkey (context, ac, &keyblock); krb5_free_keyblock_contents (context, &keyblock); } if (krb5_ret_uint32 (sp, &ac->local_seqnumber)) goto failure; if (krb5_ret_uint32 (sp, &ac->remote_seqnumber)) goto failure; if (krb5_ret_int32 (sp, &tmp) != 0) goto failure; ac->keytype = tmp; if (krb5_ret_int32 (sp, &tmp) != 0) goto failure; ac->cksumtype = tmp; /* names */ if (krb5_ret_data (sp, &data)) goto failure; buffer.value = data.data; buffer.length = data.length; ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, &name); if (ret) { ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID, &name); if (ret) { krb5_data_free (&data); goto failure; } } ctx->source = (krb5_principal)name; krb5_data_free (&data); if (krb5_ret_data (sp, &data) != 0) goto failure; buffer.value = data.data; buffer.length = data.length; ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NT_EXPORT_NAME, &name); if (ret) { ret = _gsskrb5_import_name (minor_status, &buffer, GSS_C_NO_OID, &name); if (ret) { krb5_data_free (&data); goto failure; } } ctx->target = (krb5_principal)name; krb5_data_free (&data); if (krb5_ret_int32 (sp, &tmp)) goto failure; ctx->flags = tmp; if (krb5_ret_int32 (sp, &tmp)) goto failure; ctx->more_flags = tmp; if (krb5_ret_int32 (sp, &tmp)) goto failure; ctx->endtime = tmp; ret = _gssapi_msg_order_import(minor_status, sp, &ctx->gk5c.order); if (ret) goto failure; krb5_storage_free (sp); _gsskrb5i_is_cfx(context, ctx, (ctx->more_flags & LOCAL) == 0); *context_handle = (gss_ctx_id_t)ctx; return GSS_S_COMPLETE; failure: krb5_auth_con_free (context, ctx->auth_context); if (ctx->source != NULL) krb5_free_principal(context, ctx->source); if (ctx->target != NULL) krb5_free_principal(context, ctx->target); if (localp) krb5_free_address (context, localp); if (remotep) krb5_free_address (context, remotep); if(ctx->gk5c.order) _gssapi_msg_order_destroy(&ctx->gk5c.order); HEIMDAL_MUTEX_destroy(&ctx->ctx_id_mutex); krb5_storage_free (sp); free (ctx); *context_handle = GSS_C_NO_CONTEXT; return ret; }