blob: e72ba0d9888015aeab6acf988eedb8247b9e5701 [file] [log] [blame] [edit]
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include "selinux_internal.h"
#include "context_internal.h"
int setexecfilecon(const char *filename, const char *fallback_type)
{
char * mycon = NULL, *fcon = NULL, *newcon = NULL;
context_t con = NULL;
int rc = 0;
if (is_selinux_enabled() < 1)
return 0;
rc = getcon(&mycon);
if (rc < 0)
goto out;
rc = getfilecon(filename, &fcon);
if (rc < 0)
goto out;
rc = security_compute_create(mycon, fcon, string_to_security_class("process"), &newcon);
if (rc < 0)
goto out;
if (!strcmp(mycon, newcon)) {
/* No default transition, use fallback_type for now. */
rc = -1;
con = context_new(mycon);
if (!con)
goto out;
if (context_type_set(con, fallback_type))
goto out;
freecon(newcon);
newcon = strdup(context_str(con));
if (!newcon)
goto out;
rc = 0;
}
rc = setexeccon(newcon);
if (rc < 0)
goto out;
out:
if (rc < 0 && security_getenforce() == 0)
rc = 0;
context_free(con);
freecon(newcon);
freecon(fcon);
freecon(mycon);
return rc < 0 ? rc : 0;
}
#ifndef DISABLE_RPM
int rpm_execcon(unsigned int verified __attribute__ ((unused)),
const char *filename, char *const argv[], char *const envp[])
{
int rc;
rc = setexecfilecon(filename, "rpm_script_t");
if (rc < 0)
return rc;
return execve(filename, argv, envp);
}
#endif