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TrafficStats: Include UDP stats and packet count to API

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Change-Id: I70063e6033d3c181bcc5b9e401f9474900e25281
Signed-off-by: Ashish Sharma <ashishsharma@google.com>
This commit is contained in:
Ashish Sharma
2011-01-27 15:52:38 -08:00
parent a29e945814
commit df852d8860
2 changed files with 286 additions and 6 deletions
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135
core/java/android/net/TrafficStats.java
View File

@@ -122,4 +122,139 @@ public class TrafficStats {
* @return number of bytes
*/
public static native long getUidRxBytes(int uid);
/**
* Get the number of packets (TCP segments + UDP) sent through
* the network for this UID.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of packets.
* If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidTxPackets(int uid);
/**
* Get the number of packets (TCP segments + UDP) received through
* the network for this UID.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of packets
*/
public static native long getUidRxPackets(int uid);
/**
* Get the number of TCP payload bytes sent for this UID.
* This total does not include protocol and control overheads at
* the transport and the lower layers of the networking stack.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of bytes. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidTcpTxBytes(int uid);
/**
* Get the number of TCP payload bytes received for this UID.
* This total does not include protocol and control overheads at
* the transport and the lower layers of the networking stack.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of bytes. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidTcpRxBytes(int uid);
/**
* Get the number of UDP payload bytes sent for this UID.
* This total does not include protocol and control overheads at
* the transport and the lower layers of the networking stack.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of bytes. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidUdpTxBytes(int uid);
/**
* Get the number of UDP payload bytes received for this UID.
* This total does not include protocol and control overheads at
* the transport and the lower layers of the networking stack.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of bytes. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidUdpRxBytes(int uid);
/**
* Get the number of TCP segments sent for this UID.
* Does not include TCP control packets (SYN/ACKs/FIN/..).
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of TCP segments. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidTcpTxSegments(int uid);
/**
* Get the number of TCP payload bytes received for this UID.
* Does not include TCP control packets (SYN/ACKs/FIN/..).
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of TCP segments. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidTcpRxSegments(int uid);
/**
* Get the number of UDP packets sent for this UID.
* Includes DNS requests.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of packets. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidUdpTxPackets(int uid);
/**
* Get the number of UDP packets received for this UID.
* Includes DNS responses.
* The statistics are across all interfaces.
*
* {@see android.os.Process#myUid()}.
*
* @param uid The UID of the process to examine.
* @return number of packets. If the statistics are not supported by this device,
* {@link #UNSUPPORTED} will be returned.
*/
public static native long getUidUdpRxPackets(int uid);
}

157
core/jni/android_net_TrafficStats.cpp
View File

@@ -30,6 +30,17 @@
namespace android {
enum Tx_Rx {
TX,
RX
};
enum Tcp_Udp {
TCP,
UDP,
TCP_AND_UDP
};
// Returns an ASCII decimal number read from the specified file, -1 on error.
static jlong readNumber(char const* filename) {
#ifdef HAVE_ANDROID_OS
@@ -140,16 +151,136 @@ static jlong getTotalRxBytes(JNIEnv* env, jobject clazz) {
// Per-UID stats require reading from a constructed filename.
static jlong getUidBytes(JNIEnv* env, jobject clazz, jint uid,
enum Tx_Rx tx_or_rx, enum Tcp_Udp tcp_or_udp) {
char tcp_filename[80], udp_filename[80];
jlong tcp_bytes = -1, udp_bytes = -1, total_bytes = -1;
switch (tx_or_rx) {
case TX:
sprintf(tcp_filename, "/proc/uid_stat/%d/tcp_snd", uid);
sprintf(udp_filename, "/proc/uid_stat/%d/udp_snd", uid);
break;
case RX:
sprintf(tcp_filename, "/proc/uid_stat/%d/tcp_rcv", uid);
sprintf(udp_filename, "/proc/uid_stat/%d/udp_rcv", uid);
break;
default:
return -1;
}
switch (tcp_or_udp) {
case TCP:
tcp_bytes = readNumber(tcp_filename);
total_bytes = (tcp_bytes >= 0) ? tcp_bytes : -1;
break;
case UDP:
udp_bytes = readNumber(udp_filename);
total_bytes = (udp_bytes >= 0) ? udp_bytes : -1;
break;
case TCP_AND_UDP:
tcp_bytes = readNumber(tcp_filename);
total_bytes += (tcp_bytes >= 0 ? tcp_bytes : 0);
udp_bytes = readNumber(udp_filename);
total_bytes += (udp_bytes >= 0 ? udp_bytes : 0);
break;
default:
return -1;
}
return total_bytes;
}
static jlong getUidPkts(JNIEnv* env, jobject clazz, jint uid,
enum Tx_Rx tx_or_rx, enum Tcp_Udp tcp_or_udp) {
char tcp_filename[80], udp_filename[80];
jlong tcp_pkts = -1, udp_pkts = -1, total_pkts = -1;
switch (tx_or_rx) {
case TX:
sprintf(tcp_filename, "/proc/uid_stat/%d/tcp_snd_pkt", uid);
sprintf(udp_filename, "/proc/uid_stat/%d/udp_snd_pkt", uid);
break;
case RX:
sprintf(tcp_filename, "/proc/uid_stat/%d/tcp_rcv_pkt", uid);
sprintf(udp_filename, "/proc/uid_stat/%d/udp_rcv_pkt", uid);
break;
default:
return -1;
}
switch (tcp_or_udp) {
case TCP:
tcp_pkts = readNumber(tcp_filename);
total_pkts = (tcp_pkts >= 0) ? tcp_pkts : -1;
break;
case UDP:
udp_pkts = readNumber(udp_filename);
total_pkts = (udp_pkts >= 0) ? udp_pkts : -1;
break;
case TCP_AND_UDP:
tcp_pkts = readNumber(tcp_filename);
total_pkts += (tcp_pkts >= 0 ? tcp_pkts : 0);
udp_pkts = readNumber(udp_filename);
total_pkts += (udp_pkts >= 0 ? udp_pkts : 0);
break;
default:
return -1;
}
return total_pkts;
}
static jlong getUidRxBytes(JNIEnv* env, jobject clazz, jint uid) {
char filename[80];
sprintf(filename, "/proc/uid_stat/%d/tcp_rcv", uid);
return readNumber(filename);
return getUidBytes(env, clazz, uid, RX, TCP_AND_UDP);
}
static jlong getUidTxBytes(JNIEnv* env, jobject clazz, jint uid) {
char filename[80];
sprintf(filename, "/proc/uid_stat/%d/tcp_snd", uid);
return readNumber(filename);
return getUidBytes(env, clazz, uid, TX, TCP_AND_UDP);
}
/* TCP Segments + UDP Packets */
static jlong getUidTxPackets(JNIEnv* env, jobject clazz, jint uid) {
return getUidPkts(env, clazz, uid, TX, TCP_AND_UDP);
}
/* TCP Segments + UDP Packets */
static jlong getUidRxPackets(JNIEnv* env, jobject clazz, jint uid) {
return getUidPkts(env, clazz, uid, RX, TCP_AND_UDP);
}
static jlong getUidTcpTxBytes(JNIEnv* env, jobject clazz, jint uid) {
return getUidBytes(env, clazz, uid, TX, TCP);
}
static jlong getUidTcpRxBytes(JNIEnv* env, jobject clazz, jint uid) {
return getUidBytes(env, clazz, uid, RX, TCP);
}
static jlong getUidUdpTxBytes(JNIEnv* env, jobject clazz, jint uid) {
return getUidBytes(env, clazz, uid, TX, UDP);
}
static jlong getUidUdpRxBytes(JNIEnv* env, jobject clazz, jint uid) {
return getUidBytes(env, clazz, uid, RX, UDP);
}
static jlong getUidTcpTxSegments(JNIEnv* env, jobject clazz, jint uid) {
return getUidPkts(env, clazz, uid, TX, TCP);
}
static jlong getUidTcpRxSegments(JNIEnv* env, jobject clazz, jint uid) {
return getUidPkts(env, clazz, uid, RX, TCP);
}
static jlong getUidUdpTxPackets(JNIEnv* env, jobject clazz, jint uid) {
return getUidPkts(env, clazz, uid, TX, UDP);
}
static jlong getUidUdpRxPackets(JNIEnv* env, jobject clazz, jint uid) {
return getUidPkts(env, clazz, uid, RX, UDP);
}
static JNINativeMethod gMethods[] = {
@@ -161,8 +292,22 @@ static JNINativeMethod gMethods[] = {
{"getTotalRxPackets", "()J", (void*) getTotalRxPackets},
{"getTotalTxBytes", "()J", (void*) getTotalTxBytes},
{"getTotalRxBytes", "()J", (void*) getTotalRxBytes},
/* Per-UID Stats */
{"getUidTxBytes", "(I)J", (void*) getUidTxBytes},
{"getUidRxBytes", "(I)J", (void*) getUidRxBytes},
{"getUidTxPackets", "(I)J", (void*) getUidTxPackets},
{"getUidRxPackets", "(I)J", (void*) getUidRxPackets},
{"getUidTcpTxBytes", "(I)J", (void*) getUidTcpTxBytes},
{"getUidTcpRxBytes", "(I)J", (void*) getUidTcpRxBytes},
{"getUidUdpTxBytes", "(I)J", (void*) getUidUdpTxBytes},
{"getUidUdpRxBytes", "(I)J", (void*) getUidUdpRxBytes},
{"getUidTcpTxSegments", "(I)J", (void*) getUidTcpTxSegments},
{"getUidTcpRxSegments", "(I)J", (void*) getUidTcpRxSegments},
{"getUidUdpTxPackets", "(I)J", (void*) getUidUdpTxPackets},
{"getUidUdpRxPackets", "(I)J", (void*) getUidUdpRxPackets},
};
int register_android_net_TrafficStats(JNIEnv* env) {