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Capability replicate/split/destroy/grant working for test0 ipc.

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Implemented a protocol between a client and its pager to
request and get a capability to ipc to another client of the pager.

Pager first ensures the request is valid from its client.
It then tries to use a greater capability that it possesses, to
produce a new capability that the client requested. Once the kernel
validates the correct one and replicates/reduces it to client's
need, it grants it to the client.
This commit is contained in:
Bahadir Balban
2009-11-09 00:40:07 +02:00
parent 1bb2c05c9b
commit b24c8eb89d
7 changed files with 195 additions and 78 deletions
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4
conts/posix/test0/src/ipctest.c
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@@ -105,11 +105,11 @@ void ipc_extended_test(void)
cap.owner = parent;
cap.resid = child;
} else {
cap.owner = child;
cap.owner = getpid();
cap.resid = parent;
}
cap.type = CAP_TYPE_IPC | CAP_RTYPE_THREAD;
cap.access = CAP_IPC_EXTENDED;
cap.access = CAP_IPC_EXTENDED | CAP_IPC_SEND | CAP_IPC_RECV;
if ((err = cap_request_pager(&cap)) < 0) {
printf("Ipc capability request failed. "
"err = %d\n", err);