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Commit ce2a0ecf authored by Mark Salyzyn's avatar Mark Salyzyn Committed by Android Git Automerger
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am ffd72150: am 3e73a99f: Merge "logd: auditd: add logd.auditd.dmesg property" 

* commit 'ffd72150':
  logd: auditd: add logd.auditd.dmesg property
parents 219ed707 ffd72150

logd/LogAudit.cpp

+18 −4
Original line number Diff line number Diff line
@@ -19,15 +19,18 @@ 
#include <stdarg.h>

#include <stdlib.h>

#include <sys/klog.h>

#include <sys/uio.h>



#include "libaudit.h"

#include "LogAudit.h"



LogAudit::LogAudit(LogBuffer *buf, LogReader *reader)

LogAudit::LogAudit(LogBuffer *buf, LogReader *reader, int fdDmsg)

        : SocketListener(getLogSocket(), false)

        , logbuf(buf)

        , reader(reader) {

    logDmsg();

        , reader(reader)

        , fdDmesg(-1) {

    logDmesg();

    fdDmesg = fdDmsg;

}



bool LogAudit::onDataAvailable(SocketClient *cli) {
@@ -62,6 +65,17 @@ int LogAudit::logPrint(const char *fmt, ...) { 
        return rc;

    }



    if (fdDmesg >= 0) {

        struct iovec iov[2];



        iov[0].iov_base = str;

        iov[0].iov_len = strlen(str);

        iov[1].iov_base = const_cast<char *>("\n");

        iov[1].iov_len = 1;



        writev(fdDmesg, iov, sizeof(iov) / sizeof(iov[0]));

    }



    pid_t pid = getpid();

    pid_t tid = gettid();

    uid_t uid = getuid();
@@ -141,7 +155,7 @@ int LogAudit::logPrint(const char *fmt, ...) { 
    return rc;

}



void LogAudit::logDmsg() {

void LogAudit::logDmesg() {

    int len = klogctl(KLOG_SIZE_BUFFER, NULL, 0);

    if (len <= 0) {

        return;

logd/LogAudit.h

+3 −2
Original line number Diff line number Diff line
@@ -23,16 +23,17 @@ 
class LogAudit : public SocketListener {

    LogBuffer *logbuf;

    LogReader *reader;

    int fdDmesg;



public:

    LogAudit(LogBuffer *buf, LogReader *reader);

    LogAudit(LogBuffer *buf, LogReader *reader, int fdDmesg);



protected:

    virtual bool onDataAvailable(SocketClient *cli);



private:

    static int getLogSocket();

    void logDmsg();

    void logDmesg();

    int logPrint(const char *fmt, ...)

        __attribute__ ((__format__ (__printf__, 2, 3)));

};

logd/main.cpp

+9 −1
Original line number Diff line number Diff line
@@ -84,6 +84,13 @@ static int drop_privs() { 
// space logger.  Additional transitory per-client threads are created

// for each reader once they register.

int main() {

    int fdDmesg = -1;

    char dmesg[PROPERTY_VALUE_MAX];

    property_get("logd.auditd.dmesg", dmesg, "1");

    if (atol(dmesg)) {

        fdDmesg = open("/dev/kmsg", O_WRONLY);

    }



    if (drop_privs() != 0) {

        return -1;

    }
@@ -136,9 +143,10 @@ int main() { 
    // and LogReader is notified to send updates to connected clients.



    // failure is an option ... messages are in dmesg (required by standard)

    LogAudit *al = new LogAudit(logBuf, reader);

    LogAudit *al = new LogAudit(logBuf, reader, fdDmesg);

    if (al->startListener()) {

        delete al;

        close(fdDmesg);

    }



    pause();