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From a3f0d8a363f7c872757f99523c737918c369d522 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Thu, 28 Nov 2013 11:04:38 +0100
Subject: [PATCH hurd 05/29] libtrivfs: add payload-aware intrans functions
* libtrivfs/mig-decls.h (trivfs_begin_using_protid_payload): New function.
(trivfs_begin_using_control_payload): Likewise.
* libtrivfs/mig-mutate.h: Add mutators.
---
libtrivfs/mig-decls.h | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++
libtrivfs/mig-mutate.h | 3 +++
2 files changed, 61 insertions(+)
diff --git a/libtrivfs/mig-decls.h b/libtrivfs/mig-decls.h
index 2baaee8..13a9eb7 100644
--- a/libtrivfs/mig-decls.h
+++ b/libtrivfs/mig-decls.h
@@ -61,6 +61,35 @@ trivfs_begin_using_protid (mach_port_t port)
return ports_lookup_port (0, port, trivfs_dynamic_protid_port_classes[0]);
}
+static inline struct trivfs_protid * __attribute__ ((unused))
+trivfs_begin_using_protid_payload (unsigned long payload)
+{
+ if (trivfs_protid_nportclasses + trivfs_num_dynamic_protid_port_classes > 1)
+ {
+ struct port_info *pi = ports_lookup_payload (NULL, payload, NULL);
+ int i;
+
+ if (pi)
+ {
+ for (i = 0; i < trivfs_protid_nportclasses; i++)
+ if (pi->class == trivfs_protid_portclasses[i])
+ return (struct trivfs_protid *) pi;
+ for (i = 0; i < trivfs_num_dynamic_protid_port_classes; i++)
+ if (pi->class == trivfs_dynamic_protid_port_classes[i])
+ return (struct trivfs_protid *) pi;
+ ports_port_deref (pi);
+ }
+
+ return NULL;
+ }
+ else if (trivfs_protid_nportclasses == 1)
+ return ports_lookup_payload (NULL, payload,
+ trivfs_protid_portclasses[0]);
+ else
+ return ports_lookup_payload (NULL, payload,
+ trivfs_dynamic_protid_port_classes[0]);
+}
+
static inline void __attribute__ ((unused))
trivfs_end_using_protid (struct trivfs_protid *cred)
{
@@ -95,6 +124,35 @@ trivfs_begin_using_control (mach_port_t port)
return ports_lookup_port (0, port, trivfs_dynamic_control_port_classes[0]);
}
+static inline struct trivfs_control * __attribute__ ((unused))
+trivfs_begin_using_control_payload (unsigned long payload)
+{
+ if (trivfs_cntl_nportclasses + trivfs_num_dynamic_control_port_classes > 1)
+ {
+ struct port_info *pi = ports_lookup_payload (NULL, payload, NULL);
+ int i;
+
+ if (pi)
+ {
+ for (i = 0; i < trivfs_cntl_nportclasses; i++)
+ if (pi->class == trivfs_cntl_portclasses[i])
+ return (struct trivfs_control *) pi;
+ for (i = 0; i < trivfs_num_dynamic_control_port_classes; i++)
+ if (pi->class == trivfs_dynamic_control_port_classes[i])
+ return (struct trivfs_control *) pi;
+ ports_port_deref (pi);
+ }
+
+ return NULL;
+ }
+ else if (trivfs_cntl_nportclasses == 1)
+ return ports_lookup_payload (NULL, payload,
+ trivfs_cntl_portclasses[0]);
+ else
+ return ports_lookup_payload (NULL, payload,
+ trivfs_dynamic_control_port_classes[0]);
+}
+
static inline void __attribute__ ((unused))
trivfs_end_using_control (struct trivfs_control *cred)
{
diff --git a/libtrivfs/mig-mutate.h b/libtrivfs/mig-mutate.h
index cc15d38..dcbebf6 100644
--- a/libtrivfs/mig-mutate.h
+++ b/libtrivfs/mig-mutate.h
@@ -20,13 +20,16 @@
#define REPLY_PORTS
#define FILE_INTRAN trivfs_protid_t trivfs_begin_using_protid (file_t)
+#define FILE_INTRAN_PAYLOAD trivfs_protid_t trivfs_begin_using_protid_payload
#define FILE_DESTRUCTOR trivfs_end_using_protid (trivfs_protid_t)
#define FILE_IMPORTS import "libtrivfs/mig-decls.h";
#define IO_INTRAN trivfs_protid_t trivfs_begin_using_protid (io_t)
+#define IO_INTRAN_PAYLOAD trivfs_protid_t trivfs_begin_using_protid_payload
#define IO_DESTRUCTOR trivfs_end_using_protid (trivfs_protid_t)
#define IO_IMPORTS import "libtrivfs/mig-decls.h";
#define FSYS_INTRAN trivfs_control_t trivfs_begin_using_control (fsys_t)
+#define FSYS_INTRAN_PAYLOAD trivfs_control_t trivfs_begin_using_control_payload
#define FSYS_DESTRUCTOR trivfs_end_using_control (trivfs_control_t)
#define FSYS_IMPORTS import "libtrivfs/mig-decls.h";
--
2.1.3
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