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Commit a2a1f314 authored by Brad Fitzpatrick's avatar Brad Fitzpatrick
Browse files

Let SocketClient users write binary data to clients. 

This is a dependency for the DNS proxy CLs.

This CL also adds a new socket for the netd process to inherit which
is owned by the inet group.  (so only apps with the INTERNET
permission can use the DNS proxy...)

Change-Id: I8a51924e0ed56c6066f77e6f1b02d39bdadac51e
parent f1c2a735

include/sysutils/SocketClient.h

+4 −0
Original line number Original line Diff line number Diff line
@@ -28,8 +28,12 @@ public: 
    uid_t getUid() const { return mUid; }

    uid_t getUid() const { return mUid; }

    gid_t getGid() const { return mGid; }

    gid_t getGid() const { return mGid; }





    // Send null-terminated C strings:

    int sendMsg(int code, const char *msg, bool addErrno);

    int sendMsg(int code, const char *msg, bool addErrno);

    int sendMsg(const char *msg);

    int sendMsg(const char *msg);



    // Sending binary data:

    int sendData(const void *data, int len);

};

};





typedef android::List<SocketClient *> SocketClientCollection;

typedef android::List<SocketClient *> SocketClientCollection;

libsysutils/src/SocketClient.cpp

+13 −5
Original line number Original line Diff line number Diff line
@@ -50,14 +50,22 @@ int SocketClient::sendMsg(const char *msg) { 
    }

    }





    // Send the message including null character

    // Send the message including null character

    if (sendData(msg, strlen(msg) + 1) != 0) {

        SLOGW("Unable to send msg '%s'", msg);

        return -1;

    }

    return 0;

}



int SocketClient::sendData(const void* data, int len) {

    int rc = 0;

    int rc = 0;

    const char *p = msg;

    const char *p = (const char*) data;

    int brtw = strlen(msg) + 1;

    int brtw = len;





    pthread_mutex_lock(&mWriteMutex);

    pthread_mutex_lock(&mWriteMutex);

    while(brtw) {

    while (brtw > 0) {

        if ((rc = write(mSocket, p, brtw)) < 0) {

        if ((rc = write(mSocket, p, brtw)) < 0) {

            SLOGW("Unable to send msg '%s' (%s)", msg, strerror(errno));

            SLOGW("write error (%s)", strerror(errno));

            pthread_mutex_unlock(&mWriteMutex);

            pthread_mutex_unlock(&mWriteMutex);

            return -1;

            return -1;

        } else if (!rc) {

        } else if (!rc) {

rootdir/init.rc

+1 −0
Original line number Original line Diff line number Diff line
@@ -320,6 +320,7 @@ service vold /system/bin/vold 




service netd /system/bin/netd

service netd /system/bin/netd

    socket netd stream 0660 root system

    socket netd stream 0660 root system

    socket dnsproxyd stream 0660 root inet





service debuggerd /system/bin/debuggerd

service debuggerd /system/bin/debuggerd