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-rw-r--r--cmds/installd/commands.c118
-rw-r--r--cmds/installd/installd.c24
-rw-r--r--cmds/installd/installd.h19
3 files changed, 118 insertions, 43 deletions
diff --git a/cmds/installd/commands.c b/cmds/installd/commands.c
index 41f070c..b8ba3f6 100644
--- a/cmds/installd/commands.c
+++ b/cmds/installd/commands.c
@@ -16,7 +16,7 @@
#include "installd.h"
-int install(const char *pkgname, uid_t uid, gid_t gid)
+int install(const char *pkgname, int encrypted_fs_flag, uid_t uid, gid_t gid)
{
char pkgdir[PKG_PATH_MAX];
char libdir[PKG_PATH_MAX];
@@ -27,11 +27,17 @@ int install(const char *pkgname, uid_t uid, gid_t gid)
}
- if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
- return -1;
- if (create_pkg_path(libdir, PKG_LIB_PREFIX, pkgname, PKG_LIB_POSTFIX))
- return -1;
-
+ if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
+ if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
+ return -1;
+ if (create_pkg_path(libdir, PKG_LIB_PREFIX, pkgname, PKG_LIB_POSTFIX))
+ return -1;
+ } else {
+ if (create_pkg_path(pkgdir, PKG_SEC_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
+ return -1;
+ if (create_pkg_path(libdir, PKG_SEC_LIB_PREFIX, pkgname, PKG_LIB_POSTFIX))
+ return -1;
+ }
if (mkdir(pkgdir, 0751) < 0) {
LOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno));
@@ -56,27 +62,38 @@ int install(const char *pkgname, uid_t uid, gid_t gid)
return 0;
}
-int uninstall(const char *pkgname)
+int uninstall(const char *pkgname, int encrypted_fs_flag)
{
char pkgdir[PKG_PATH_MAX];
- if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
- return -1;
+ if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
+ if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
+ return -1;
+ } else {
+ if (create_pkg_path(pkgdir, PKG_SEC_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
+ return -1;
+ }
/* delete contents AND directory, no exceptions */
return delete_dir_contents(pkgdir, 1, 0);
}
-int renamepkg(const char *oldpkgname, const char *newpkgname)
+int renamepkg(const char *oldpkgname, const char *newpkgname, int encrypted_fs_flag)
{
char oldpkgdir[PKG_PATH_MAX];
char newpkgdir[PKG_PATH_MAX];
- if (create_pkg_path(oldpkgdir, PKG_DIR_PREFIX, oldpkgname, PKG_DIR_POSTFIX))
- return -1;
- if (create_pkg_path(newpkgdir, PKG_DIR_PREFIX, newpkgname, PKG_DIR_POSTFIX))
- return -1;
-
+ if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
+ if (create_pkg_path(oldpkgdir, PKG_DIR_PREFIX, oldpkgname, PKG_DIR_POSTFIX))
+ return -1;
+ if (create_pkg_path(newpkgdir, PKG_DIR_PREFIX, newpkgname, PKG_DIR_POSTFIX))
+ return -1;
+ } else {
+ if (create_pkg_path(oldpkgdir, PKG_SEC_DIR_PREFIX, oldpkgname, PKG_DIR_POSTFIX))
+ return -1;
+ if (create_pkg_path(newpkgdir, PKG_SEC_DIR_PREFIX, newpkgname, PKG_DIR_POSTFIX))
+ return -1;
+ }
if (rename(oldpkgdir, newpkgdir) < 0) {
LOGE("cannot rename dir '%s' to '%s': %s\n", oldpkgdir, newpkgdir, strerror(errno));
@@ -85,29 +102,41 @@ int renamepkg(const char *oldpkgname, const char *newpkgname)
return 0;
}
-int delete_user_data(const char *pkgname)
+int delete_user_data(const char *pkgname, int encrypted_fs_flag)
{
char pkgdir[PKG_PATH_MAX];
- if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
- return -1;
+ if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
+ if (create_pkg_path(pkgdir, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
+ return -1;
+ } else {
+ if (create_pkg_path(pkgdir, PKG_SEC_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX))
+ return -1;
+ }
/* delete contents, excluding "lib", but not the directory itself */
return delete_dir_contents(pkgdir, 0, "lib");
}
-int delete_cache(const char *pkgname)
+int delete_cache(const char *pkgname, int encrypted_fs_flag)
{
char cachedir[PKG_PATH_MAX];
- if (create_pkg_path(cachedir, CACHE_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX))
- return -1;
-
+ if (encrypted_fs_flag == USE_UNENCRYPTED_FS) {
+ if (create_pkg_path(cachedir, CACHE_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX))
+ return -1;
+ } else {
+ if (create_pkg_path(cachedir, CACHE_SEC_DIR_PREFIX, pkgname, CACHE_DIR_POSTFIX))
+ return -1;
+ }
/* delete contents, not the directory, no exceptions */
return delete_dir_contents(cachedir, 0, 0);
}
+/* TODO(oam): depending on use case (ecryptfs or dmcrypt)
+ * change implementation
+ */
static int disk_free()
{
struct statfs sfs;
@@ -139,6 +168,39 @@ int free_cache(int free_size)
LOGI("free_cache(%d) avail %d\n", free_size, avail);
if (avail >= free_size) return 0;
+ /* First try encrypted dir */
+ d = opendir(PKG_SEC_DIR_PREFIX);
+ if (d == NULL) {
+ LOGE("cannot open %s\n", PKG_SEC_DIR_PREFIX);
+ } else {
+ dfd = dirfd(d);
+
+ while ((de = readdir(d))) {
+ if (de->d_type != DT_DIR) continue;
+ name = de->d_name;
+
+ /* always skip "." and ".." */
+ if (name[0] == '.') {
+ if (name[1] == 0) continue;
+ if ((name[1] == '.') && (name[2] == 0)) continue;
+ }
+
+ subfd = openat(dfd, name, O_RDONLY | O_DIRECTORY);
+ if (subfd < 0) continue;
+
+ delete_dir_contents_fd(subfd, "cache");
+ close(subfd);
+
+ avail = disk_free();
+ if (avail >= free_size) {
+ closedir(d);
+ return 0;
+ }
+ }
+ closedir(d);
+ }
+
+ /* Next try unencrypted dir... */
d = opendir(PKG_DIR_PREFIX);
if (d == NULL) {
LOGE("cannot open %s\n", PKG_DIR_PREFIX);
@@ -314,7 +376,7 @@ static int calculate_dir_size(int dfd)
int get_size(const char *pkgname, const char *apkpath,
const char *fwdlock_apkpath,
- int *_codesize, int *_datasize, int *_cachesize)
+ int *_codesize, int *_datasize, int *_cachesize, int encrypted_fs_flag)
{
DIR *d;
int dfd;
@@ -349,8 +411,14 @@ int get_size(const char *pkgname, const char *apkpath,
}
}
- if (create_pkg_path(path, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) {
- goto done;
+ if (encrypted_fs_flag == 0) {
+ if (create_pkg_path(path, PKG_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) {
+ goto done;
+ }
+ } else {
+ if (create_pkg_path(path, PKG_SEC_DIR_PREFIX, pkgname, PKG_DIR_POSTFIX)) {
+ goto done;
+ }
}
d = opendir(path);
diff --git a/cmds/installd/installd.c b/cmds/installd/installd.c
index f6ca998..882c493 100644
--- a/cmds/installd/installd.c
+++ b/cmds/installd/installd.c
@@ -29,7 +29,7 @@ static int do_ping(char **arg, char reply[REPLY_MAX])
static int do_install(char **arg, char reply[REPLY_MAX])
{
- return install(arg[0], atoi(arg[1]), atoi(arg[2])); /* pkgname, uid, gid */
+ return install(arg[0], atoi(arg[1]), atoi(arg[2]), atoi(arg[3])); /* pkgname, uid, gid */
}
static int do_dexopt(char **arg, char reply[REPLY_MAX])
@@ -50,12 +50,12 @@ static int do_rm_dex(char **arg, char reply[REPLY_MAX])
static int do_remove(char **arg, char reply[REPLY_MAX])
{
- return uninstall(arg[0]); /* pkgname */
+ return uninstall(arg[0], atoi(arg[1])); /* pkgname */
}
static int do_rename(char **arg, char reply[REPLY_MAX])
{
- return renamepkg(arg[0], arg[1]); /* oldpkgname, newpkgname */
+ return renamepkg(arg[0], arg[1], atoi(arg[2])); /* oldpkgname, newpkgname */
}
static int do_free_cache(char **arg, char reply[REPLY_MAX]) /* TODO int:free_size */
@@ -65,7 +65,7 @@ static int do_free_cache(char **arg, char reply[REPLY_MAX]) /* TODO int:free_siz
static int do_rm_cache(char **arg, char reply[REPLY_MAX])
{
- return delete_cache(arg[0]); /* pkgname */
+ return delete_cache(arg[0], atoi(arg[1])); /* pkgname */
}
static int do_protect(char **arg, char reply[REPLY_MAX])
@@ -81,7 +81,7 @@ static int do_get_size(char **arg, char reply[REPLY_MAX])
int res = 0;
/* pkgdir, apkpath */
- res = get_size(arg[0], arg[1], arg[2], &codesize, &datasize, &cachesize);
+ res = get_size(arg[0], arg[1], arg[2], &codesize, &datasize, &cachesize, atoi(arg[3]));
sprintf(reply,"%d %d %d", codesize, datasize, cachesize);
return res;
@@ -89,7 +89,7 @@ static int do_get_size(char **arg, char reply[REPLY_MAX])
static int do_rm_user_data(char **arg, char reply[REPLY_MAX])
{
- return delete_user_data(arg[0]); /* pkgname */
+ return delete_user_data(arg[0], atoi(arg[1])); /* pkgname */
}
static int do_movefiles(char **arg, char reply[REPLY_MAX])
@@ -105,17 +105,17 @@ struct cmdinfo {
struct cmdinfo cmds[] = {
{ "ping", 0, do_ping },
- { "install", 3, do_install },
+ { "install", 4, do_install },
{ "dexopt", 3, do_dexopt },
{ "movedex", 2, do_move_dex },
{ "rmdex", 1, do_rm_dex },
- { "remove", 1, do_remove },
- { "rename", 2, do_rename },
+ { "remove", 2, do_remove },
+ { "rename", 3, do_rename },
{ "freecache", 1, do_free_cache },
- { "rmcache", 1, do_rm_cache },
+ { "rmcache", 2, do_rm_cache },
{ "protect", 2, do_protect },
- { "getsize", 3, do_get_size },
- { "rmuserdata", 1, do_rm_user_data },
+ { "getsize", 4, do_get_size },
+ { "rmuserdata", 2, do_rm_user_data },
{ "movefiles", 0, do_movefiles },
};
diff --git a/cmds/installd/installd.h b/cmds/installd/installd.h
index cfcdb98..8e4adb1 100644
--- a/cmds/installd/installd.h
+++ b/cmds/installd/installd.h
@@ -48,16 +48,23 @@
/* elements combined with a valid package name to form paths */
#define PKG_DIR_PREFIX "/data/data/"
+#define PKG_SEC_DIR_PREFIX "/data/secure/data/"
#define PKG_DIR_POSTFIX ""
#define PKG_LIB_PREFIX "/data/data/"
+#define PKG_SEC_LIB_PREFIX "/data/secure/data/"
#define PKG_LIB_POSTFIX "/lib"
#define CACHE_DIR_PREFIX "/data/data/"
+#define CACHE_SEC_DIR_PREFIX "/data/secure/data/"
#define CACHE_DIR_POSTFIX "/cache"
#define APK_DIR_PREFIX "/data/app/"
+/* Encrypted File SYstems constants */
+#define USE_ENCRYPTED_FS 1
+#define USE_UNENCRYPTED_FS 0
+
/* other handy constants */
#define PROTECTED_DIR_PREFIX "/data/app-private/"
@@ -89,16 +96,16 @@ int delete_dir_contents_fd(int dfd, const char *name);
/* commands.c */
-int install(const char *pkgname, uid_t uid, gid_t gid);
-int uninstall(const char *pkgname);
-int renamepkg(const char *oldpkgname, const char *newpkgname);
-int delete_user_data(const char *pkgname);
-int delete_cache(const char *pkgname);
+int install(const char *pkgname, int encrypted_fs_flag, uid_t uid, gid_t gid);
+int uninstall(const char *pkgname, int encrypted_fs_flag);
+int renamepkg(const char *oldpkgname, const char *newpkgname, int encrypted_fs_flag);
+int delete_user_data(const char *pkgname, int encrypted_fs_flag);
+int delete_cache(const char *pkgname, int encrypted_fs_flag);
int move_dex(const char *src, const char *dst);
int rm_dex(const char *path);
int protect(char *pkgname, gid_t gid);
int get_size(const char *pkgname, const char *apkpath, const char *fwdlock_apkpath,
- int *codesize, int *datasize, int *cachesize);
+ int *codesize, int *datasize, int *cachesize, int encrypted_fs_flag);
int free_cache(int free_size);
int dexopt(const char *apk_path, uid_t uid, int is_public);
int movefiles();
generated by cgit v1.1 at 2025-11-27 09:46:36 +0000