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Extract the paramaters (in the form $N) from an access
vector, storing them as Param objects in a dictionary.
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found it is reported to the caller.
The goal here is to figure out how interface parameters are
actually used in the interface - e.g., that $1 is a domain used as
a SRC_TYPE. In general an interface will look like this:
interface(`foo', `
allow $1 foo : file read;
')
This is simple to figure out - $1 is a SRC_TYPE. A few interfaces
are more complex, for example:
interface(`foo_trans',`
domain_auto_trans($1,fingerd_exec_t,fingerd_t)
allow $1 fingerd_t:fd use;
allow fingerd_t $1:fd use;
allow fingerd_t $1:fifo_file rw_file_perms;
allow fingerd_t $1:process sigchld;
')
Here the usage seems ambigious, but it is not. $1 is still domain
and therefore should be returned as a SRC_TYPE.
Returns:
0 - success
1 - conflict found
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