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Properly detect /data status

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topjohnwu
2017-12-23 04:58:51 +08:00
parent b92b1dcddb
commit 022b18c8ce
3 changed files with 21 additions and 19 deletions
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23
core/jni/utils/misc.c
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@@ -20,6 +20,7 @@
#include "logging.h"
#include "utils.h"
#include "resetprop.h"
unsigned get_shell_uid() {
struct passwd* ppwd = getpwnam("shell");
@@ -46,18 +47,22 @@ unsigned get_radio_uid() {
}
int check_data() {
int ret = 0;
char buffer[4096];
FILE *fp = xfopen("/proc/mounts", "r");
while (fgets(buffer, sizeof(buffer), fp)) {
if (strstr(buffer, " /data ")) {
if (strstr(buffer, "tmpfs") == NULL)
ret = 1;
struct vector v;
vec_init(&v);
file_to_vector("/proc/mounts", &v);
char *line, *crypto;
int mnt = 0;
vec_for_each(&v, line) {
if (strstr(line, " /data ")) {
if (strstr(line, "tmpfs") == NULL)
mnt = 1;
break;
}
}
fclose(fp);
return ret;
vec_deep_destroy(&v);
// /data is mounted and not tmpfs and data is unencrypted or vold is started
return mnt && (((crypto = getprop("ro.crypto.state")) && strcmp(crypto, "unencrypted") == 0)
|| getprop("init.svc.vold"));
}
/* All the string should be freed manually!! */