1SD_BUS_MESSAGE_SENSITIVE(3)sd_bus_message_sensitiveSD_BUS_MESSAGE_SENSITIVE(3)
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6 sd_bus_message_sensitive - Mark a message object as containing
7 sensitive data
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10 #include <systemd/sd-bus.h>
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12 int sd_bus_message_sensitive(sd_bus_message *message);
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15 sd_bus_message_sensitive() marks an allocated bus message as containing
16 sensitive data. This ensures that the message data is carefully removed
17 from memory (specifically, overwritten with zero bytes) when released.
18 It is recommended to mark all incoming and outgoing messages like this
19 that contain security credentials and similar data that should be dealt
20 with carefully. Note that it is not possible to unmark messages like
21 this, it's a one way operation. If a message is already marked
22 sensitive and then marked sensitive a second time the message remains
23 marked so and no further operation is executed.
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25 As a safety precaution all messages that are created as reply to
26 messages that are marked sensitive are also implicitly marked so.
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29 On success, this functions return 0 or a positive integer. On failure,
30 it returns a negative errno-style error code.
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32 Errors
33 Returned errors may indicate the following problems:
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35 -EINVAL
36 The message parameter is NULL.
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39 These APIs are implemented as a shared library, which can be compiled
40 and linked to with the libsystemd pkg-config(1) file.
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43 systemd(1), sd-bus(3), sd_bus_message_new_method_call(3)
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47systemd 248 SD_BUS_MESSAGE_SENSITIVE(3)