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Bug #721

closed

Exclusion of '/../' should occur earlier during trace creation

Added by Daniel U. Thibault almost 11 years ago. Updated almost 11 years ago.

Status:
Resolved
Priority:
High
Assignee:
-
Target version:
LTTng - 2.3
Start date:
01/17/2014
Due date:
% Done:

100%

Estimated time:

Description

Consider this:

$ lttng create stupid/../stupider
Session stupid/../stupider created.
Traces will be written in /home/daniel/lttng-traces/stupid/../stupider-20140117-140634
$ lttng enable-event -u -a
All UST events are enabled in channel channel0
$ lttng start
Tracing started for session stupid/../stupider
Error: Using '/../' is not permitted in the trace path (/home/daniel/lttng-traces/stupid/..)
Error: Trace directory creation error

Or this:

$ lttng create stupid/../stupider -U net://131.132.32.77
Session stupid/../stupider created.
Traces will be written in net://131.132.32.77
$ lttng enable-event -u -a
All UST events are enabled in channel channel0
$ lttng start
Tracing started for session stupid/../stupider
Error: Relayd add stream replied error 11
Error: Using '/../' is not permitted in the trace path (/home/daniel/lttng-traces/stupid/..)
Error: Trace directory creation error

Clearly in both cases the session name should have been vetted by the trace path validator as soon as lttng create was issued. Note also how, in the second example, the error message makes no sense (it refers to a local path that was not going to be used).

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