Introduce test-program for System V standardized IPC syscalls

[aniketp]

Summary

This revision introduces test program for System V standardized system calls concerned
with creating and manipulating message queues. These system calls are categorized within
inter-process-communication audit class (as expected).

System calls in question are:

• msgget(2)
• msgsnd(2)
• msgrcv(2)
• msgctl(2)

Note:
msgctl(2) takes as argument a cmd which is a separate audit event in itself.
List of msgctl(2) audit events:

• AUE_MSGCTL [Illegal Command]
• AUE_MSGCTL_STAT
• AUE_MSGCTL_RMID
• AUE_MSGCTL_SET

For full details, please see: sys/security/audit/audit_bsm_klib.c#L248

Each of them have been treated as separate audit events. (And hence, separate tests)

Test Plan

Execute make && make install from test/sys/audit.
Execute kyua test from /usr/tests/sys/audit. All testcases should succeed.

[asomers]

tests/sys/audit/inter-process.c

123 ↗

(On Diff #43880)

You're sending uninitialized data here, since msgsize is 128 but only the first 15B of the message are initialized. You should send only the true length of the message.

302 ↗

(On Diff #43880)

s/failur/failure

378 ↗

(On Diff #43880)

s/failur/failure

[aniketp]

Update the test-program to send only the initialized data using msgsnd(2)

[asomers]

tests/sys/audit/inter-process.c

118 ↗

(On Diff #43898)

This takes the address of samplemsg and casts that to a char. I don't think that's what you want.

[aniketp]

Tweak in the msgstr_t variables' initialization