1 files changed, 102 insertions, 0 deletions

diff --git a/src/faudit/syscall.c b/src/faudit/syscall.c
new file mode 100644
index 000000000..4cd2526ba
--- /dev/null
+++ b/src/faudit/syscall.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2014-2016 Firejail Authors
+ *
+ * This file is part of firejail project
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+#include "faudit.h"
+#include <sys/ptrace.h>
+#include <sys/swap.h>
+#if defined(__i386__) || defined(__x86_64__)
+#include <sys/io.h>
+#endif
+#include <sys/wait.h>
+extern int init_module(void *module_image, unsigned long len,
+                       const char *param_values);
+extern int finit_module(int fd, const char *param_values,
+                        int flags);
+extern int delete_module(const char *name, int flags);
+extern int pivot_root(const char *new_root, const char *put_old);
+
+void syscall_helper(int argc, char **argv) {
+        (void) argc;
+        
+        if (strcmp(argv[2], "mount") == 0) {
+                int rv = mount(NULL, NULL, NULL, 0, NULL);
+                (void) rv;
+                printf("\nUGLY: mount syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "umount2") == 0) {
+                umount2(NULL, 0);
+                printf("\nUGLY: umount2 syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "ptrace") == 0) {
+                ptrace(0, 0, NULL, NULL);
+                printf("\nUGLY: ptrace syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "swapon") == 0) {
+                swapon(NULL, 0);
+                printf("\nUGLY: swapon syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "swapoff") == 0) {
+                swapoff(NULL);
+                printf("\nUGLY: swapoff syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "init_module") == 0) {
+                init_module(NULL, 0, NULL);
+                printf("\nUGLY: init_module syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "delete_module") == 0) {
+                delete_module(NULL, 0);
+                printf("\nUGLY: delete_module syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "chroot") == 0) {
+                int rv = chroot("/blablabla-57281292");
+                (void) rv;
+                printf("\nUGLY: chroot syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "pivot_root") == 0) {
+                pivot_root(NULL, NULL);
+                printf("\nUGLY: pivot_root syscall permitted.\n");
+        }
+#if defined(__i386__) || defined(__x86_64__)
+        else if (strcmp(argv[2], "iopl") == 0) {
+                iopl(0L);
+                printf("\nUGLY: iopl syscall permitted.\n");
+        }
+        else if (strcmp(argv[2], "ioperm") == 0) {
+                ioperm(0, 0, 0);
+                printf("\nUGLY: ioperm syscall permitted.\n");
+        }
+#endif
+        exit(0);
+}
+
+void syscall_run(const char *name) {
+        assert(prog);
+        
+        pid_t child = fork();
+        if (child < 0)
+                errExit("fork");
+        if (child == 0) {
+                execl(prog, prog, "syscall", name, NULL);
+                perror("execl");
+                _exit(1);
+        }
+                
+        // wait for the child to finish
+        waitpid(child, NULL, 0);
+}