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29 #ifndef __LINKER_NAMESPACES_H
30 #define __LINKER_NAMESPACES_H
32 #include "linker_common_types.h"
36 #include <unordered_set>
38 struct android_namespace_t;
40 struct android_namespace_link_t {
42 android_namespace_link_t(android_namespace_t* linked_namespace,
43 const std::unordered_set<std::string>& shared_lib_sonames)
44 : linked_namespace_(linked_namespace), shared_lib_sonames_(shared_lib_sonames)
47 android_namespace_t* linked_namespace() const {
48 return linked_namespace_;
51 const std::unordered_set<std::string>& shared_lib_sonames() const {
52 return shared_lib_sonames_;
55 bool is_accessible(const char* soname) const {
56 return shared_lib_sonames_.find(soname) != shared_lib_sonames_.end();
60 android_namespace_t* const linked_namespace_;
61 const std::unordered_set<std::string> shared_lib_sonames_;
64 struct android_namespace_t {
66 android_namespace_t() : name_(nullptr), is_isolated_(false), is_greylist_enabled_(false) {}
68 const char* get_name() const { return name_; }
69 void set_name(const char* name) { name_ = name; }
71 bool is_isolated() const { return is_isolated_; }
72 void set_isolated(bool isolated) { is_isolated_ = isolated; }
74 bool is_greylist_enabled() const { return is_greylist_enabled_; }
75 void set_greylist_enabled(bool enabled) { is_greylist_enabled_ = enabled; }
77 const std::vector<std::string>& get_ld_library_paths() const {
78 return ld_library_paths_;
80 void set_ld_library_paths(std::vector<std::string>&& library_paths) {
81 ld_library_paths_ = library_paths;
84 const std::vector<std::string>& get_default_library_paths() const {
85 return default_library_paths_;
87 void set_default_library_paths(std::vector<std::string>&& library_paths) {
88 default_library_paths_ = library_paths;
90 void set_default_library_paths(const std::vector<std::string>& library_paths) {
91 default_library_paths_ = library_paths;
94 const std::vector<std::string>& get_permitted_paths() const {
95 return permitted_paths_;
97 void set_permitted_paths(std::vector<std::string>&& permitted_paths) {
98 permitted_paths_ = permitted_paths;
100 void set_permitted_paths(const std::vector<std::string>& permitted_paths) {
101 permitted_paths_ = permitted_paths;
104 const std::vector<android_namespace_link_t>& linked_namespaces() const {
105 return linked_namespaces_;
107 void add_linked_namespace(android_namespace_t* linked_namespace,
108 const std::unordered_set<std::string>& shared_lib_sonames) {
109 linked_namespaces_.push_back(android_namespace_link_t(linked_namespace, shared_lib_sonames));
112 void add_soinfo(soinfo* si) {
113 soinfo_list_.push_back(si);
116 void add_soinfos(const soinfo_list_t& soinfos) {
117 for (auto si : soinfos) {
122 void remove_soinfo(soinfo* si) {
123 soinfo_list_.remove_if([&](soinfo* candidate) {
124 return si == candidate;
128 const soinfo_list_t& soinfo_list() const { return soinfo_list_; }
130 // For isolated namespaces - checks if the file is on the search path;
131 // always returns true for not isolated namespace.
132 bool is_accessible(const std::string& path);
134 // Returns true if si is accessible from this namespace. A soinfo
135 // is considered accessible when it belongs to this namespace
136 // or one of it's parent soinfos belongs to this namespace.
137 bool is_accessible(soinfo* si);
139 soinfo_list_t get_global_group();
140 soinfo_list_t get_shared_group();
145 bool is_greylist_enabled_;
146 std::vector<std::string> ld_library_paths_;
147 std::vector<std::string> default_library_paths_;
148 std::vector<std::string> permitted_paths_;
149 // Loader looks into linked namespace if it was not able
150 // to find a library in this namespace. Note that library
151 // lookup in linked namespaces are limited by the list of
153 std::vector<android_namespace_link_t> linked_namespaces_;
154 soinfo_list_t soinfo_list_;
156 DISALLOW_COPY_AND_ASSIGN(android_namespace_t);
159 #endif /* __LINKER_NAMESPACES_H */