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Native scan /proc/net

This commit is contained in:
M66B 2016-01-09 21:17:42 +01:00
parent d6d8278623
commit b7e3980ced
1 changed files with 28 additions and 0 deletions
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28
app/src/main/jni/netguard.c
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@ -1,4 +1,5 @@
#include <jni.h>
#include <stdio.h>
#include <stddef.h>
#include <malloc.h>
#include <unistd.h>
@ -14,6 +15,8 @@
void decode(JNIEnv *env, jobject instance, jbyte *, int);
void scanproc6(const char *);
JNIEXPORT void JNICALL
Java_eu_faircode_netguard_SinkholeService_jni_1init(JNIEnv *env, jobject instance) {
__android_log_print(ANDROID_LOG_INFO, TAG, "Init", 1);
@ -108,6 +111,7 @@ void decode(JNIEnv *env, jobject instance, jbyte *buffer, int length) {
__android_log_print(ANDROID_LOG_INFO, TAG, "Packet v%d %s/%d -> %s/%d proto %d flags %s",
version, source, sport, dest, dport, protocol, flags);
//scanproc6("/proc/net/tcp6");
jclass cls = (*env)->GetObjectClass(env, instance);
jmethodID mid = (*env)->GetMethodID(env, cls, "logPacket",
@ -120,3 +124,27 @@ void decode(JNIEnv *env, jobject instance, jbyte *buffer, int length) {
version, jsource, sport, jdest, dport, protocol, jflags);
}
}
void scanproc6(const char *file) {
char line[500];
struct in6_addr *saddr = malloc(sizeof(struct in6_addr));
char source[40];
int sport;
int uid;
FILE *fd = fopen(file, "r");
if (fd != NULL) {
int i = 0;
while (fgets(line, 500, fd) != NULL) {
if (i++) {
sscanf(line,
"%*d: %8X%8X%8X%8X:%X %*X:%*X %*X %*lX:%*lX %*X:%*X %*X %d %*d %*ld ",
saddr, ((void *) saddr) + 4, ((void *) saddr) + 8, ((void *) saddr) + 12,
&sport, &uid);
inet_ntop(AF_INET6, saddr, source, sizeof(source));
__android_log_print(ANDROID_LOG_INFO, TAG, "proc %s/%d %d", source, sport, uid);
}
}
fclose(fd);
}
free(saddr);
}