diff options
| author | Justus Winter <4winter@informatik.uni-hamburg.de> | 2013-11-22 16:03:52 +0100 |
|---|---|---|
| committer | Justus Winter <4winter@informatik.uni-hamburg.de> | 2014-10-01 09:03:52 +0200 |
| commit | 6b0ceb8aec7dc2d607523d7aadc2fec237ce2ca8 (patch) | |
| tree | bfeb64fc252413033ddb7c08041bd876e5d48fb3 /ipc/mach_msg.c | |
| parent | a8d611bdbf48906010c6cde67eb6ff720e715cf0 (diff) | |
ipc: provide the protected payload in ipc_kmsg_copyout_header
* ipc/ipc_kmsg.c (ipc_kmsg_copyout_header): If a protected payload is
set for the destination port, provide it in msgh_protected_payload.
* ipc/mach_msg.c (mach_msg_trap): Likewise in the fast paths.
* doc/mach.texi (Message Receive): Document message semantics with
protected payloads.
Diffstat (limited to 'ipc/mach_msg.c')
| -rw-r--r-- | ipc/mach_msg.c | 53 |
1 files changed, 40 insertions, 13 deletions
diff --git a/ipc/mach_msg.c b/ipc/mach_msg.c index 01d974b5..1e122c76 100644 --- a/ipc/mach_msg.c +++ b/ipc/mach_msg.c @@ -1132,11 +1132,19 @@ mach_msg_trap( } else ip_unlock(dest_port); - kmsg->ikm_header.msgh_bits = - MACH_MSGH_BITS(MACH_MSG_TYPE_PORT_SEND_ONCE, - MACH_MSG_TYPE_PORT_SEND); + if (! ipc_port_flag_protected_payload(dest_port)) { + kmsg->ikm_header.msgh_bits = MACH_MSGH_BITS( + MACH_MSG_TYPE_PORT_SEND_ONCE, + MACH_MSG_TYPE_PORT_SEND); + kmsg->ikm_header.msgh_local_port = dest_name; + } else { + kmsg->ikm_header.msgh_bits = MACH_MSGH_BITS( + MACH_MSG_TYPE_PORT_SEND_ONCE, + MACH_MSG_TYPE_PROTECTED_PAYLOAD); + kmsg->ikm_header.msgh_protected_payload = + dest_port->ip_protected_payload; + } kmsg->ikm_header.msgh_remote_port = reply_name; - kmsg->ikm_header.msgh_local_port = dest_name; goto fast_put; abort_request_copyout: @@ -1170,11 +1178,19 @@ mach_msg_trap( dest_name = MACH_PORT_NULL; } - kmsg->ikm_header.msgh_bits = - MACH_MSGH_BITS(0, - MACH_MSG_TYPE_PORT_SEND_ONCE); + if (! ipc_port_flag_protected_payload(dest_port)) { + kmsg->ikm_header.msgh_bits = MACH_MSGH_BITS( + 0, + MACH_MSG_TYPE_PORT_SEND_ONCE); + kmsg->ikm_header.msgh_local_port = dest_name; + } else { + kmsg->ikm_header.msgh_bits = MACH_MSGH_BITS( + 0, + MACH_MSG_TYPE_PROTECTED_PAYLOAD); + kmsg->ikm_header.msgh_protected_payload = + dest_port->ip_protected_payload; + } kmsg->ikm_header.msgh_remote_port = MACH_PORT_NULL; - kmsg->ikm_header.msgh_local_port = dest_name; goto fast_put; } @@ -1204,12 +1220,23 @@ mach_msg_trap( dest_name = MACH_PORT_NULL; } - kmsg->ikm_header.msgh_bits = - MACH_MSGH_BITS_COMPLEX | - MACH_MSGH_BITS(0, - MACH_MSG_TYPE_PORT_SEND_ONCE); + if (! ipc_port_flag_protected_payload(dest_port)) { + kmsg->ikm_header.msgh_bits = + MACH_MSGH_BITS_COMPLEX + | MACH_MSGH_BITS( + 0, + MACH_MSG_TYPE_PORT_SEND_ONCE); + kmsg->ikm_header.msgh_local_port = dest_name; + } else { + kmsg->ikm_header.msgh_bits = + MACH_MSGH_BITS_COMPLEX + | MACH_MSGH_BITS( + 0, + MACH_MSG_TYPE_PROTECTED_PAYLOAD); + kmsg->ikm_header.msgh_protected_payload = + dest_port->ip_protected_payload; + } kmsg->ikm_header.msgh_remote_port = MACH_PORT_NULL; - kmsg->ikm_header.msgh_local_port = dest_name; mr = ipc_kmsg_copyout_body( (vm_offset_t) (&kmsg->ikm_header + 1), |