sd_bus_message_sensitive(3) — Linux manual page



NAME         top

       sd_bus_message_sensitive - Mark a message object as containing
       sensitive data

SYNOPSIS         top

       #include <systemd/sd-bus.h>

       int sd_bus_message_sensitive(sd_bus_message *message);

DESCRIPTION         top

       sd_bus_message_sensitive() marks an allocated bus message as
       containing sensitive data. This ensures that the message data is
       carefully removed from memory (specifically, overwritten with
       zero bytes) when released. It is recommended to mark all incoming
       and outgoing messages like this that contain security credentials
       and similar data that should be dealt with carefully. Note that
       it is not possible to unmark messages like this, it's a one way
       operation. If a message is already marked sensitive and then
       marked sensitive a second time the message remains marked so and
       no further operation is executed.

       As a safety precaution all messages that are created as reply to
       messages that are marked sensitive are also implicitly marked so.

RETURN VALUE         top

       On success, this functions return 0 or a positive integer. On
       failure, it returns a negative errno-style error code.

       Returned errors may indicate the following problems:

           The message parameter is NULL.

NOTES         top

       These APIs are implemented as a shared library, which can be
       compiled and linked to with the libsystemd pkg-config(1) file.

SEE ALSO         top

       systemd(1), sd-bus(3), sd_bus_message_new_method_call(3)

COLOPHON         top

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systemd 249                                  SD_BUS_MESSAGE_SENSITIVE(3)

Pages that refer to this page: sd_bus_add_object(3)