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-rw-r--r--cmds/installd/commands.c108
1 files changed, 86 insertions, 22 deletions
diff --git a/cmds/installd/commands.c b/cmds/installd/commands.c
index 70a1206..dcae0c7 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];
@@ -26,10 +26,18 @@ int install(const char *pkgname, uid_t uid, gid_t gid)
return -1;
}
- 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, 0755) < 0) {
LOGE("cannot create dir '%s': %s\n", pkgdir, strerror(errno));
@@ -54,41 +62,58 @@ 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 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);
}
-
-static int disk_free(void)
+/* TODO(oam): depending on use case (ecryptfs or dmcrypt)
+ * change implementation
+ */
+static int disk_free()
{
struct statfs sfs;
if (statfs(PKG_DIR_PREFIX, &sfs) == 0) {
@@ -98,7 +123,6 @@ static int disk_free(void)
}
}
-
/* Try to ensure free_size bytes of storage are available.
* Returns 0 on success.
* This is rather simple-minded because doing a full LRU would
@@ -120,6 +144,39 @@ 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);
@@ -131,7 +188,7 @@ int free_cache(int free_size)
if (de->d_type != DT_DIR) continue;
name = de->d_name;
- /* always skip "." and ".." */
+ /* always skip "." and ".." */
if (name[0] == '.') {
if (name[1] == 0) continue;
if ((name[1] == '.') && (name[2] == 0)) continue;
@@ -150,10 +207,11 @@ int free_cache(int free_size)
}
}
closedir(d);
+
+ /* Fail case - not possible to free space */
return -1;
}
-
/* used by move_dex, rm_dex, etc to ensure that the provided paths
* don't point anywhere other than at the APK_DIR_PREFIX
*/
@@ -288,7 +346,7 @@ 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;
@@ -324,8 +382,14 @@ 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);
generated by cgit v1.1 at 2025-02-13 17:09:22 +0000