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-rw-r--r--kdmlib/kdmtsak.cpp141
-rw-r--r--kdmlib/kdmtsak.h166
2 files changed, 168 insertions, 139 deletions
diff --git a/kdmlib/kdmtsak.cpp b/kdmlib/kdmtsak.cpp
index f00346182..2602025bb 100644
--- a/kdmlib/kdmtsak.cpp
+++ b/kdmlib/kdmtsak.cpp
@@ -18,146 +18,9 @@
Boston, MA 02110-1301, USA.
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <dirent.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/select.h>
-#include <sys/time.h>
-#include <termios.h>
-#include <signal.h>
-
-#include <tqstring.h>
-
-#include "config.h"
-
-#define FIFO_FILE "/tmp/ksocket-global/tsak"
-
-// #define DEBUG
+#include "kdmtsak.h"
int main (int argc, char *argv[])
{
- int mPipe_fd;
- char readbuf[128];
- int numread;
- bool authorized = false;
-
- pid_t parentproc = getppid();
-#ifdef DEBUG
- printf("Parent pid is: %d\n\r", parentproc);
-#endif
-
- char parentexecutable[8192];
- TQString procparent = TQString("/proc/%1/exe").arg(parentproc);
- int chars = readlink(procparent.ascii(), parentexecutable, sizeof(parentexecutable));
- parentexecutable[chars] = 0;
- parentexecutable[8191] = 0;
- procparent = parentexecutable;
-#ifdef DEBUG
- printf("Parent executable name and full path is: %s\n\r", procparent.ascii());
-#endif
-
- TQString tdeBinaryPath = TQString(KDE_BINDIR "/");
-#ifdef DEBUG
- printf("The TDE binary path is: %s\n\r", tdeBinaryPath.ascii());
-#endif
-
- if (!procparent.startsWith(tdeBinaryPath)) {
- printf("Unauthorized path detected in calling process\n\r");
- return 2;
- }
- else {
- procparent = procparent.mid(tdeBinaryPath.length());
-#ifdef DEBUG
- printf("Parent executable name is: %s\n\r", procparent.ascii());
-#endif
- if ((procparent == "kdesktop") || (procparent == "kdesktop_lock") || (procparent == "kdm")) {
- authorized = true;
- }
- else if (procparent == "kdeinit") {
- printf("kdeinit detected\n\r");
- // A bit more digging is needed to see if this is an authorized process or not
- // Get the kdeinit command
- char kdeinitcmdline[8192];
- FILE *fp = fopen(TQString("/proc/%1/cmdline").arg(parentproc).ascii(),"r");
- if (fp != NULL) {
- if (fgets (kdeinitcmdline, 8192, fp) != NULL)
- fclose (fp);
- }
- kdeinitcmdline[8191] = 0;
- TQString kdeinitCommand = kdeinitcmdline;
-
- // Also get the environment, specifically the path
- TQString kdeinitEnvironment;
- char kdeinitenviron[8192];
- fp = fopen(TQString("/proc/%1/environ").arg(parentproc).ascii(),"r");
- if (fp != NULL) {
- int c;
- int pos = 0;
- do {
- c = fgetc(fp);
- kdeinitenviron[pos] = c;
- pos++;
- if (c == 0) {
- TQString curEnvLine = kdeinitenviron;
- if (curEnvLine.startsWith("PATH=")) {
- kdeinitEnvironment = curEnvLine.mid(5);
- }
- pos = 0;
- }
- } while ((c != EOF) && (pos < 8192));
- fclose (fp);
- }
- kdeinitenviron[8191] = 0;
-
-#ifdef DEBUG
- printf("Called executable name is: %s\n\r", kdeinitCommand.ascii());
- printf("Environment is: %s\n\r", kdeinitEnvironment.ascii());
-#endif
-
- if ((kdeinitCommand == "kdesktop [kdeinit]") && (kdeinitEnvironment.startsWith(KDE_BINDIR))) {
- authorized = true;
- }
- else {
- return 4;
- }
- }
- else {
- printf("Unauthorized calling process detected\n\r");
- return 3;
- }
-
- if (authorized == true) {
- // OK, the calling process is authorized to retrieve SAK data
- // First, flush the buffer
- mPipe_fd = open(FIFO_FILE, O_RDWR | O_NONBLOCK);
- numread = 1;
- while (numread > 0) {
- numread = read(mPipe_fd, readbuf, 128);
- }
- // Now wait for SAK press
- mPipe_fd = open(FIFO_FILE, O_RDWR);
- if (mPipe_fd > -1) {
- numread = read(mPipe_fd, readbuf, 128);
- readbuf[numread] = 0;
- readbuf[127] = 0;
- close(mPipe_fd);
- if (strcmp(readbuf, "SAK\n\r") == 0) {
- return 0;
- }
- else {
- return 1;
- }
- }
- return 6;
- }
- }
-
- return 5;
+ return tde_sak_verify_calling_process();
} \ No newline at end of file
diff --git a/kdmlib/kdmtsak.h b/kdmlib/kdmtsak.h
new file mode 100644
index 000000000..171bece0b
--- /dev/null
+++ b/kdmlib/kdmtsak.h
@@ -0,0 +1,166 @@
+/*
+ This file is part of the TDE project
+ Copyright (C) 2011 Timothy Pearson <kb9vqf@pearsoncomputing.net>
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public License
+ along with this library; see the file COPYING.LIB. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+*/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <dirent.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/select.h>
+#include <sys/time.h>
+#include <termios.h>
+#include <signal.h>
+
+#include <tqstring.h>
+
+#include "config.h"
+
+#define FIFO_FILE "/tmp/ksocket-global/tsak"
+
+// #define DEBUG
+
+inline int tde_sak_verify_calling_process()
+{
+ int mPipe_fd;
+ char readbuf[128];
+ int numread;
+ bool authorized = false;
+
+ pid_t parentproc = getppid();
+#ifdef DEBUG
+ printf("Parent pid is: %d\n\r", parentproc);
+#endif
+
+ char parentexecutable[8192];
+ TQString procparent = TQString("/proc/%1/exe").arg(parentproc);
+ int chars = readlink(procparent.ascii(), parentexecutable, sizeof(parentexecutable));
+ parentexecutable[chars] = 0;
+ parentexecutable[8191] = 0;
+ procparent = parentexecutable;
+#ifdef DEBUG
+ printf("Parent executable name and full path is: %s\n\r", procparent.ascii());
+#endif
+
+ TQString tdeBinaryPath = TQString(KDE_BINDIR "/");
+#ifdef DEBUG
+ printf("The TDE binary path is: %s\n\r", tdeBinaryPath.ascii());
+#endif
+
+ if (!procparent.startsWith(tdeBinaryPath)) {
+ printf("Unauthorized path detected in calling process\n\r");
+ return 2;
+ }
+ else {
+ procparent = procparent.mid(tdeBinaryPath.length());
+#ifdef DEBUG
+ printf("Parent executable name is: %s\n\r", procparent.ascii());
+#endif
+ if ((procparent == "kdesktop") || (procparent == "kdesktop_lock") || (procparent == "kdm")) {
+ authorized = true;
+ }
+ else if (procparent == "kdeinit") {
+ printf("kdeinit detected\n\r");
+ // A bit more digging is needed to see if this is an authorized process or not
+ // Get the kdeinit command
+ char kdeinitcmdline[8192];
+ FILE *fp = fopen(TQString("/proc/%1/cmdline").arg(parentproc).ascii(),"r");
+ if (fp != NULL) {
+ if (fgets (kdeinitcmdline, 8192, fp) != NULL)
+ fclose (fp);
+ }
+ kdeinitcmdline[8191] = 0;
+ TQString kdeinitCommand = kdeinitcmdline;
+
+ // Also get the environment, specifically the path
+ TQString kdeinitEnvironment;
+ char kdeinitenviron[8192];
+ fp = fopen(TQString("/proc/%1/environ").arg(parentproc).ascii(),"r");
+ if (fp != NULL) {
+ int c;
+ int pos = 0;
+ do {
+ c = fgetc(fp);
+ kdeinitenviron[pos] = c;
+ pos++;
+ if (c == 0) {
+ TQString curEnvLine = kdeinitenviron;
+ if (curEnvLine.startsWith("PATH=")) {
+ kdeinitEnvironment = curEnvLine.mid(5);
+ }
+ pos = 0;
+ }
+ } while ((c != EOF) && (pos < 8192));
+ fclose (fp);
+ }
+ kdeinitenviron[8191] = 0;
+
+#ifdef DEBUG
+ printf("Called executable name is: %s\n\r", kdeinitCommand.ascii());
+ printf("Environment is: %s\n\r", kdeinitEnvironment.ascii());
+#endif
+
+ if ((kdeinitCommand == "kdesktop [kdeinit]") && (kdeinitEnvironment.startsWith(KDE_BINDIR))) {
+ authorized = true;
+ }
+ else {
+ return 4;
+ }
+ }
+ else {
+ printf("Unauthorized calling process detected\n\r");
+ return 3;
+ }
+
+ if (authorized == true) {
+ // OK, the calling process is authorized to retrieve SAK data
+ // First, flush the buffer
+ mPipe_fd = open(FIFO_FILE, O_RDWR | O_NONBLOCK);
+ numread = 1;
+ while (numread > 0) {
+ numread = read(mPipe_fd, readbuf, 128);
+ }
+ // Now wait for SAK press
+ mPipe_fd = open(FIFO_FILE, O_RDWR);
+ if (mPipe_fd > -1) {
+ numread = read(mPipe_fd, readbuf, 128);
+ readbuf[numread] = 0;
+ readbuf[127] = 0;
+ close(mPipe_fd);
+ if (strcmp(readbuf, "SAK\n\r") == 0) {
+ return 0;
+ }
+ else {
+ return 1;
+ }
+ }
+ return 6;
+ }
+ }
+
+ return 5;
+}
+
+#undef FIFO_FILE
+#undef DEBUG \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 11:26:12 +0000