/* use ndr_print_* to convert a NDR formatted blob to a ldif formatted blob If mask_errors is true, then function succeeds but out data is set to "<Unable to decode binary data>" message \return 0 on success; -1 on error */ static int ldif_write_NDR(struct ldb_context *ldb, void *mem_ctx, const struct ldb_val *in, struct ldb_val *out, size_t struct_size, ndr_pull_flags_fn_t pull_fn, ndr_print_fn_t print_fn, bool mask_errors) { uint8_t *p; enum ndr_err_code err; if (!(ldb_get_flags(ldb) & LDB_FLG_SHOW_BINARY)) { return ldb_handler_copy(ldb, mem_ctx, in, out); } p = talloc_size(mem_ctx, struct_size); err = ndr_pull_struct_blob(in, mem_ctx, p, pull_fn); if (err != NDR_ERR_SUCCESS) { /* fail in not in mask_error mode */ if (!mask_errors) { return -1; } talloc_free(p); out->data = (uint8_t *)talloc_strdup(mem_ctx, "<Unable to decode binary data>"); out->length = strlen((const char *)out->data); return 0; } out->data = (uint8_t *)ndr_print_struct_string(mem_ctx, print_fn, "NDR", p); talloc_free(p); if (out->data == NULL) { return ldb_handler_copy(ldb, mem_ctx, in, out); } out->length = strlen((char *)out->data); return 0; }
/* canonicalise a objectGUID */ static int ldif_canonicalise_objectGUID(struct ldb_context *ldb, void *mem_ctx, const struct ldb_val *in, struct ldb_val *out) { if (ldif_comparision_objectGUID_isString(in)) { if (ldif_read_objectGUID(ldb, mem_ctx, in, out) != 0) { /* Perhaps it wasn't a valid string after all */ return ldb_handler_copy(ldb, mem_ctx, in, out); } return 0; } return ldb_handler_copy(ldb, mem_ctx, in, out); }
/* read a 64 bit 2-part range */ static int ldif_read_range64(struct ldb_context *ldb, void *mem_ctx, const struct ldb_val *in, struct ldb_val *out) { unsigned long high, low; char buf[64]; if (memchr(in->data, '-', in->length) == NULL) { return ldb_handler_copy(ldb, mem_ctx, in, out); } if (in->length > sizeof(buf)-1) { return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX; } strncpy(buf, (const char *)in->data, in->length); buf[in->length] = 0; if (sscanf(buf, "%lu-%lu", &low, &high) != 2) { return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX; } out->data = (uint8_t *)talloc_asprintf(mem_ctx, "%llu", (unsigned long long)(((uint64_t)high)<<32) | (low)); if (out->data == NULL) { ldb_oom(ldb); return LDB_ERR_OPERATIONS_ERROR; } out->length = strlen((char *)out->data); return LDB_SUCCESS; }
/* Just copy the old value. */ static struct ldb_val convert_uid_samaccount(struct ldb_module *module, TALLOC_CTX *ctx, const struct ldb_val *val) { struct ldb_val out = data_blob(NULL, 0); ldb_handler_copy(module->ldb, ctx, val, &out); return out; }
/* canonicalise a prefixMap */ static int ldif_canonicalise_prefixMap(struct ldb_context *ldb, void *mem_ctx, const struct ldb_val *in, struct ldb_val *out) { if (ldif_comparision_prefixMap_isString(in)) { return ldif_read_prefixMap(ldb, mem_ctx, in, out); } return ldb_handler_copy(ldb, mem_ctx, in, out); }
static int ldif_write_dn_binary_NDR(struct ldb_context *ldb, void *mem_ctx, const struct ldb_val *in, struct ldb_val *out, size_t struct_size, ndr_pull_flags_fn_t pull_fn, ndr_print_fn_t print_fn, bool mask_errors) { uint8_t *p = NULL; enum ndr_err_code err; struct dsdb_dn *dsdb_dn = NULL; char *dn_str = NULL; char *str = NULL; if (!(ldb_get_flags(ldb) & LDB_FLG_SHOW_BINARY)) { return ldb_handler_copy(ldb, mem_ctx, in, out); } dsdb_dn = dsdb_dn_parse(mem_ctx, ldb, in, DSDB_SYNTAX_BINARY_DN); if (dsdb_dn == NULL) { return ldb_handler_copy(ldb, mem_ctx, in, out); } p = talloc_size(dsdb_dn, struct_size); if (p == NULL) { TALLOC_FREE(dsdb_dn); return ldb_handler_copy(ldb, mem_ctx, in, out); } err = ndr_pull_struct_blob(&dsdb_dn->extra_part, p, p, pull_fn); if (err != NDR_ERR_SUCCESS) { /* fail in not in mask_error mode */ if (!mask_errors) { return -1; } TALLOC_FREE(dsdb_dn); return ldb_handler_copy(ldb, mem_ctx, in, out); } dn_str = ldb_dn_get_extended_linearized(dsdb_dn, dsdb_dn->dn, 1); if (dn_str == NULL) { TALLOC_FREE(dsdb_dn); return ldb_handler_copy(ldb, mem_ctx, in, out); } str = ndr_print_struct_string(mem_ctx, print_fn, dn_str, p); TALLOC_FREE(dsdb_dn); if (str == NULL) { return ldb_handler_copy(ldb, mem_ctx, in, out); } *out = data_blob_string_const(str); return 0; }
/* convert a string formatted SDDL to a ldif formatted ntSecurityDescriptor (SDDL format) */ static int ldif_write_sddlSecurityDescriptor(struct ldb_context *ldb, void *mem_ctx, const struct ldb_val *in, struct ldb_val *out) { if (ldb_get_flags(ldb) & LDB_FLG_SHOW_BINARY) { struct security_descriptor *sd; const struct dom_sid *sid = samdb_domain_sid(ldb); sd = sddl_decode(mem_ctx, (const char *)in->data, sid); out->data = (uint8_t *)ndr_print_struct_string(mem_ctx, (ndr_print_fn_t)ndr_print_security_descriptor, "SDDL", sd); out->length = strlen((const char *)out->data); talloc_free(sd); return 0; } return ldb_handler_copy(ldb, mem_ctx, in, out); }