X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..5eebf7385fedb1517b66b53c28e5aa6bb0a2be50:/osfmk/vm/vm_shared_memory_server.h

diff --git a/osfmk/vm/vm_shared_memory_server.h b/osfmk/vm/vm_shared_memory_server.h
index 259be7ea1..5d3254b2b 100644
--- a/osfmk/vm/vm_shared_memory_server.h
+++ b/osfmk/vm/vm_shared_memory_server.h
@@ -52,12 +52,20 @@ struct shared_region_task_mappings {
 	vm_offset_t		client_base;
 	vm_offset_t		alternate_base;
 	vm_offset_t		alternate_next;
+	unsigned int		fs_base;
+	unsigned int		system;
 	int			flags;
 	vm_offset_t		self;
 };
 
-#define SHARED_REGION_SYSTEM	0x1
-#define SHARED_REGION_FULL	0x2
+#define SHARED_REGION_SYSTEM	0x1 // Default env for system and fs_root
+#define SHARED_REGION_FULL	0x2 // Shared regions are full
+#define SHARED_REGION_STALE 	0x4 // Indicates no longer in default list
+
+
+/* defines for default environment, and co-resident systems */
+
+#define ENV_DEFAULT_ROOT	0
 
 typedef	struct shared_region_task_mappings *shared_region_task_mappings_t;
 typedef struct shared_region_mapping *shared_region_mapping_t;
@@ -90,6 +98,7 @@ struct load_struct {
 	vm_offset_t		base_address;
 	int			mapping_cnt;
 	loaded_mapping_t	*mappings;
+        vm_offset_t             file_offset; // start of file we mapped in
 };
 
 typedef struct load_struct load_struct_t;
@@ -122,6 +131,8 @@ typedef struct shared_region_object_chain *shared_region_object_chain_t;
 struct shared_region_mapping {
         decl_mutex_data(,       Lock)   /* Synchronization */
 	int			ref_count;
+	unsigned int		fs_base;
+	unsigned int		system;
 	mach_port_t		text_region;
 	vm_size_t		text_size;
 	mach_port_t		data_region;
@@ -132,6 +143,7 @@ struct shared_region_mapping {
 	vm_offset_t		alternate_next;
 	int			flags;
 	int			depth;
+	shared_region_mapping_t default_env_list;
 	shared_region_object_chain_t object_chain;
 	shared_region_mapping_t self;
 	shared_region_mapping_t next;
@@ -168,6 +180,8 @@ extern kern_return_t shared_region_mapping_info(
 				vm_offset_t		*client_base,
 				vm_offset_t		*alternate_base,
 				vm_offset_t		*alternate_next,
+				unsigned int		*fs_base,
+				unsigned int		*system,
 				int			*flags,
 				shared_region_mapping_t	*next);
 
@@ -188,6 +202,10 @@ extern kern_return_t shared_region_mapping_ref(
 extern kern_return_t shared_region_mapping_dealloc(
 				shared_region_mapping_t	shared_region);
 
+__private_extern__ kern_return_t shared_region_mapping_dealloc_lock(
+				shared_region_mapping_t	shared_region,
+				int need_lock);
+
 extern kern_return_t shared_region_object_chain_attach(
 				shared_region_mapping_t	target_region,
 				shared_region_mapping_t	object_chain);
@@ -200,6 +218,20 @@ extern kern_return_t vm_set_shared_region(
 				task_t	task,
 				shared_region_mapping_t	shared_region);
 
+extern shared_region_mapping_t update_default_shared_region(
+				shared_region_mapping_t new_system_region);
+
+extern shared_region_mapping_t lookup_default_shared_region(
+				unsigned int fs_base,
+				unsigned int system);
+
+extern void remove_default_shared_region(
+				shared_region_mapping_t system_region);
+
+__private_extern__ void remove_default_shared_region_lock(
+				shared_region_mapping_t system_region,
+				int need_lock);
+
 extern unsigned int lsf_mapping_pool_gauge();
 
 #endif /* __APPLE_API_PRIVATE */